Some standard content:
Mechanical Industry Standard of the People's Republic of China
SHG type ring cooler
Subject content and scope of application
JB/T550991
This standard specifies the basic parameters, product performance, manufacturing quality and test acceptance requirements of blast ring coolers (hereinafter referred to as coolers) with a nominal effective cooling area of 140 to 610m2 for sintering equipment. This standard is applicable to coolers that cool hot sintered ore with a particle size of no more than 150mm and an overflow temperature of no more than 850C to below 150℃ after crushing.
2 Reference standards
GB1236
GB3077
GB4879
GB5398
GB6388
Packaging storage and transportation pictorial signs
Technical conditions for high-quality carbon structural steel
Test methods for fan performance
Technical conditions for alloy structural steel
Rust-proof packaging
Test methods for large transport packages
Transport packaging receiving and sending signs
GB11352
General engineering Casting carbon steel parts
JB8 product label
JB1604
JB2759
YBJ213
GBJ205
3 Product classification
Mining machinery products
Electromechanical product packaging
Model compilation method
General technical conditions
Metallurgical machinery and equipment installation engineering construction and acceptance specifications·Sintering equipment steel structure engineering construction and acceptance specifications
3.1 Structural type
The structural type is a blast type ring cooler. 3.2 Basic parameters
The basic parameters of the cooler shall comply with the provisions of Table 1. 3.3 Conditions for determining the main parameters
The main parameters of the cooler in Table 1, such as the effective cooling area (A), the center diameter of the cooling ring (D), the air volume of the blower (V.) and the air pressure of the blower (p), are determined under the following conditions. If the design mining conditions do not meet the following conditions, the design calculation can be carried out according to the calculation formula in Appendix A (Supplement).
a. The utilization coefficient of the sintering machine is 1.5t/(m2.h); b. The sintering ore finished product rate is 60%:
c. Without the configuration of the hot ore vibrating screen. Approved by the Ministry of Machinery and Electronics Industry of the People's Republic of China on July 10, 1991 336
Implemented on July 1, 1992
SHG-140
SHG-170
SHG-190
SHG-220
SHG-280
SHG-320
SHG-360
SHG-4 00
SHG-440
SHG-460
SHG-510
SHG-560
SHG-610
Nominal effective
Cooling area
JB/T5509-91
Note: 1) The center diameter refers to the rotation center diameter of the ring cooler trolley, 2) The air volume of the blower is the air volume under standard conditions. 3.4 Product model
The product model is in accordance with the provisions of JB1604, and its expression method is as follows: S
Effective cooling area, m2
-Blaster
-Ring cooler
Sintering equipment
4 Technical requirements
4.1 The product shall comply with the requirements of this standard and be manufactured in accordance with the technical documents and drawings approved by the prescribed procedures. Transmission motor power
Blower
Fengshi"
682000
858000
946000
1056000
1320 000
1584 000
1782000
1914000
2112000
2376000
2 640 000
3036000
3300000
4.2 Under the conditions of rated cooling capacity and rated cooling air volume (cooling air is at room temperature 20℃), the temperature of the sintered ore after cooling should be lower than 150℃.
4.3 The working system is 24h continuous operation, and the equipment operation rate is not less than 90%. 4.4 Structural requirements
4.4.1 The lubrication surface is equipped with a dustproof device,
4.4.2 Friction wheels, stop wheels, wheels, etc. should be interchangeable and easy to replace. 4.4.3 The speed of the cooling ring can be adjusted arbitrarily within the range specified in Table 1. 4.5 Guarantee Term
4.5.1 Under the condition that the user complies with the storage, custody, use, installation and transportation rules, within two years from the date of the last batch of products shipped or within one year of load operation (whichever comes first), if the product is damaged or cannot work normally due to poor manufacturing quality, the manufacturer shall replace or repair it for the user free of charge (except for wearing parts). JB/T5509-91
4.5.2 Main wearing parts: The service life of the friction wheel shall not be less than 18,000 hours; the service life of the friction plate shall not be less than 36,000 hours. 4.5.3 The running time of the cooler before the first overhaul shall not be less than 18 000h. 4.5.4 Under the condition of rated cooling capacity, the service life of the cooler shall not be less than 20 years. 4.6 Manufacturing quality requirements for main parts
4.6.1 Friction wheel
4.6.1.1 The material is ZG40Mn and shall comply with the provisions of relevant standards. 4.6.1.2 The hardness of the working surface quenching shall reach 45±3HRC, and the depth shall be 1~2mm. 4.6.2 Wiping plate
4.6.2.1 The material shall comply with the provisions of 20CrMnMo in GB3077. 4.6.2.2 The tensile strength shall not be less than 1170N/mm2. 4.6.3 Frame||tt| |The length limit deviation of the column (pillar) and beam is ±3mm. The straightness tolerance of the column (pillar) along the length direction shall not exceed L/1500, and the maximum shall not exceed 5mm. 4.6.3.3 The straightness tolerance of the beam along the length direction shall not exceed L/1000, and the maximum shall not exceed 10mm. The limit deviation of each elevation (step height) is ±3mm. 4.6.3.4
4.6.4 Wheel
4.6.4.1 The material shall comply with the provisions of ZG310-570 in GB11352. 4.6.4.2 The surface high-frequency quenching hardness of the tread shall reach 48±3HRC. The depth is 12mm. 4.6.5 Curved track and transmission frame
4.6.5.1 The lowest point of the inner and outer curved tracks shall be marked as shown in Appendix B (Supplementary) Figure B1. 4.6.5.2 The upper surface of the inner and outer transmission frames shall be measured according to the position of the regular polygon in accordance with Figure B2 in Appendix B, and six center points shall be marked as required by Figure B3.
On-site installation quality requirements
4.7.1 The on-site installation quality requirements of the cooler shall comply with the provisions of Chapter 3 of YBJ213. See Appendix B. 4.7.2 The on-site painting of the main parts shall comply with the provisions of relevant standards. 5 Test methods
5.1 The cooler shall be tested according to the test methods approved by the prescribed procedures. 5.2 No-load test
5.2.1 After the cooler is installed and the single machine test is qualified, the design unit, manufacturer and installation unit (or user) shall jointly conduct an empty-load test of the whole machine. The continuous time of the no-load test run should be no less than 6 hours, and the rotation should be flexible and without jamming. No-load test test items: cooling ring speed and speed range; bearing temperature rise and maximum temperature of the transmission device; reducer lubricating oil temperature rise and maximum temperature; working conditions of various lubrication and air pressure pipeline systems; sealing conditions of various sealing parts. Test method 5. 2.3. 1 Measure the base with a speedometer with an accuracy of not less than level 2, adjust the motor speed, and determine its adjustment range. Insert the point thermometer into the oil filling hole of the bearing seat until the bearing shell. If the bearing seat does not have an oil filling hole, the maximum temperature of the outer shell of the bearing seat can be directly measured, and then a 3C correction value can be added. The bearing temperature rise is equal to the maximum bearing temperature minus the ambient temperature. Under normal operating conditions, the bearing temperature rise shall not exceed 45°C and the maximum temperature shall not exceed 80°C. 338
JB/T5509-91
5.2.3.3 Insert the spot thermometer into the oil measuring hole of the reducer until it reaches the lubricating oil, and measure the temperature rise and maximum temperature of the lubricating oil. The temperature rise of the lubricating oil should not exceed 30℃; the maximum temperature should not exceed 65℃. 5.3 Load test
Load test test items;
Cooling ring speed and adjustment range;
Friction wheel slippage;
Transmission device motor current value;
Blower air volume and air pressure;
Transmission device bearing temperature rise and maximum temperature; Reducer lubricating oil temperature rise and maximum temperature; Cooling capacity;
Average temperature of hot sintered ore after cooling under rated cooling capacity; Working conditions of various lubrication and air pressure pipeline systems; Sealing conditions of various sealing parts.
Test method
The cooling ring speed and speed adjustment range shall be tested in accordance with 5.2.4.1. 5. 3.2. 1
Friction wheel slippage inspection.
Use an ammeter with an accuracy of 2.5 to measure the transmission device motor current value. After measuring the air pressure with a U-type pressure gauge with an accuracy of 2.5, convert the air volume in accordance with the provisions of GB1236. The bearing temperature rise and maximum temperature of the transmission device shall be tested in accordance with Article 5.2.4.2. Under the condition of rated cooling capacity, the bearing temperature rise shall not exceed 50℃ and the maximum shall not exceed 85℃. 5.3.2.6 The lubricating oil temperature rise and maximum temperature of the reducer shall be tested in accordance with Article 5.2.4.4. Under the condition of rated cooling capacity, the lubricating oil temperature rise shall not exceed 35C: the maximum shall not exceed 70℃. 5.3.2.7 According to the material layer thickness and cooling time of the cooler, calculate the cooling capacity per hour. 5.3.2.8 Use an infrared radiation thermometer with a precision of level 1 and a measuring range of 100-300℃ to measure the temperature of the sintered ore. The instrument is generally installed above the outlet of the cooler, and the method of use is in accordance with the instrument manual. 6 Inspection rules
6.1 Cooling machine products can only be shipped after being inspected and qualified by the quality inspection department of the manufacturer. 6.2 After the components are shipped to the site of use, the user or installation unit shall notify the manufacturer, and both parties shall jointly unpack, verify the quantity and inspect the appearance quality.
6.3 The user has the right to inspect and accept the product according to this standard. 7 Marking, packaging, transportation, storage
7.1 Marking
Each cooler should be fixed with a product label in a conspicuous position. The type and size should comply with the provisions of JB8 and indicate the following: a.
Manufacturer name and trademark;
Product model, name and specification;
Factory number;
d. Date of manufacture.
7.2 Packaging
7.2.1 The cooler should be packed or wrapped in parts and components, suitable for land and water transportation requirements, and comply with the provisions of JB2759. The text, logo and pattern on the outside of the packaging should comply with the provisions of GB6388 and GB191. 7.2.2 Sales
JB/T5509-91
The anti-rust packaging should comply with the provisions of GB4879. 7.2.3
The manufacturer shall send the following technical documents to the user (or installation unit) along with the product, and pack them into the box and mark them on the outside of the box: packing list;
Product factory qualification certificate;
Instruction manual;
Product installation manual and installation drawing:
List of random spare parts.
When using containers, only parts of the same project are allowed to be loaded in one container. The parts in the box shall be marked with the code, name, quantity and part (part) of the part. 7.2.6 Large and deformable parts installed on site shall be fixed in special metal brackets respectively. 7.3 Transportation
7.3.1 When transporting large parts of the cooler, the lower part must be leveled and padded according to the lifting force intersection point. 7.3.2 Large and overweight packaging boxes shall be tested for strength and shall comply with the provisions of GB5398. 7.4 Storage
7.4.1 After the parts of the cooler are transported to the site, they should be stored in an appropriate flat indoor area. When large structures are stored outdoors, they should be protected from the sun and rain, and there should be no accumulation of water, soaking, or deformation of the components. 7.4.2 When storing large items such as columns, stands, and sealing covers, they should be placed reasonably, and the bottom surface must be leveled according to the marked position, and no other objects should be piled on top.
The packaging boxes of friction plates can be stacked, but no more than three layers at most. The packaging boxes for storing friction plates are not allowed to cause the friction plates to deform.
The effective area A of the cooler.
Calculate according to formula (A1):
Where: A. Effective cooling area, m\;
Q--Cooling capacity of cooler, t/h;
t--Cooling time, min
JB/T5509-91
Appendix Abzxz.net
Basic parameters A., D, V. Calculation of and P
(Supplement)
h-Material layer thickness (h=1.4±0.1), m; y
Sintered ore bulk density (Y=1.7±0.1), t/m2. A2 Cooling ring median diameter D
Calculated according to formula (A2):
Average diameter of cooling ring, m
W. Trolley width, m
L, length of section without wind box, m.
Air volume of blower V.
Calculate according to formula (A3):
Where V. Blower air volume, m\/minVQ
The cooling air volume required for one unit of sintered ore, m*/min·t). A4 Blower air pressure selection
Calculate the air pressure according to the following recommended formula.
A4.1 Calculation of non-heated ore vibrating screen:
p=1275h
Where: p—required blower air pressure, Pa; F—air volume per unit cooling area, m/(min·m\). F=
C.+S...C...oO........
·(A4)
A4.2 Calculation of hot ore vibrating screen:
JB/T5509—91
p9806h
A4.3 Blower outlet pressure check calculation according to formula (A6): 0.026pp(273+t)
Where: p.
Blower outlet pressure, Pa;
Blower total pressure value, Pa;
p: —- Atmospheric pressure of the region, Pa;
t. — Standard temperature (t.=20℃),; Annual average temperature of the region, ℃.
Appendix B
Quality requirements for on-site installation
(Supplement)
B1Quality requirements for on-site installation of coolers
Quality of on-site installation shall comply with the provisions of Chapter 3 of YBJ213. B2Quality requirements for installation of coolers in YBJ213Cooling equipment
·(A6)
This chapter applies to the installation and no-load test run of blast and exhaust type ring coolers, belt coolers, ring and belt scraper conveyors, double valves, blowers and exhaust fan equipment. B2.1 Ring cooler
B2.1.1 Measurement of installation center line and elevation of ring coolerB2.1.1.1 The maximum deviation between the longitudinal center line of the ring cooler and the longitudinal center line of the sintering machine is ±3mm. B2.1.1.2 The maximum deviation of the projection point of the transverse center line of the ring cooler is ±3mm, based on the center stake of the control network. B2.1.1.3 The limit deviation of the perpendicular angle between the longitudinal and transverse center lines is ±10”. The intersection is the center point of the ring cooler, i.e., the center of the circle. B2.1.1.4 The limit deviation of the elevation between the reference point of the ring cooler and the reference point of the sintering machine is ±3mm. B2.1.2 Frame, funnel and sealing cover
The frame installation shall meet the following requirements:
The limit deviation of the longitudinal and transverse center lines of the column bottom plate is ±5mm; the limit deviation of the elevation of the column bottom plate is ±2mm; the verticality tolerance of the column installation is 1/1000; the limit deviation of the elevation of the radial beam and the ring beam of the frame is ±3mm; the supporting beams of the ring rails shall be on the same plane, and the height difference of each point in the circumferential direction measured at the supporting points at both ends of each rail supporting beam shall not be greater than 2mm;
The limit deviation of the elevation of the exhaust fan supporting beam is ±5mm. f.
B2.1.2 .2 The installation of the feeding funnel shall meet the following requirements: a.
The limit deviation of the elevation of the lower surface of the feeding funnel is ±10mm; b. The limit deviation of the longitudinal and transverse center lines of the upper part of the feeding funnel is ±10mm; c. The center point of the lower outlet of the feeding funnel shall coincide with the circular center line of the trolley, with a tolerance of 15mm. 342
JB/T5509—91
B2.1.2.3 The limit deviation of the longitudinal and transverse center lines of the discharge funnel is ±5mm, and the limit deviation of the elevation of its lower surface is ±3mm. B2.1.2.4 The limit deviation of the longitudinal and transverse center lines of the bulk material funnel of the exhaust ring cooler is ±5mm, and the limit deviation of the elevation of its lower surface is ±5mm.
The circular center lines of the upper and lower parts of the air duct and bellows of the blast ring cooler shall coincide with the circular center line of the trolley, with a tolerance of 10mm; B2.1.2.5
The horizontal tolerance of the bellows lower flange is 2/1000: the bellows upper part should be tightly connected to the crossbeam; the bellows upper sealing plate should be installed smoothly, and the contact part with the rubber sealing plate should not have any hair or unevenness to avoid air leakage and scratching the rubber sealing plate. B2.1.2.6 The horizontal tolerance of the exhaust pipe of the blast and exhaust ring cooler is 1/1000. B2.1.2.7 The installation of the ring-type sealing cover shall meet the following requirements: a.
The annular center line of the ring-type sealing cover shall coincide with the annular center line of the trolley, with a tolerance of 5mm; the connection between the ring-type sealing covers shall be tight and air leakage shall be avoided; the verticality tolerance of the two sides of each ring-type sealing cover shall be 1.5/1000; the gap between the lower end of the sealing cover and the upper end of the trolley side plate shall comply with the provisions of the equipment technical documents: the contact between the rubber sealing plate of the upper seal of the trolley or the lower seal of the trolley and the trolley shall fit: the upper and lower adjustment of the end seal suspension of the exhaust ring cooler and the rotation of the fan plate shall be flexible, especially the stuck phenomenon, and the sealing asbestos rope in the expansion hood shall be filled and pressed tightly.
B2.1.2.8 The welding quality of the funnel, air duct and exhaust pipe shall comply with the provisions of the third-level welding seam standard in Chapter 3 of GBJ205. B2.1.3 Track
B2.1.3.1 The installation of the circular horizontal track shall meet the following requirements: The limit deviation of the radius of the trolley circular centerline is ±1mm; a.
b. The circumference of the circular horizontal track is based on the trolley circular centerline, and the limit deviation of the distance between the inner and outer circular horizontal tracks and the trolley circular centerline is ±1mm;
The limit deviation of the track gauge of the inner and outer circular horizontal tracks is ±2mm; c.
d. The limit deviation of the elevation of the circular horizontal track is ±2mm; The height difference between the two tracks at the track joint shall not be greater than 0.5mm, the joint misalignment shall not be greater than 1mm, and the thermal expansion gap reserved at the joint shall comply with the provisions of the equipment technical documents; e. The inner and outer circular horizontal tracks shall be measured on the same horizontal plane at the fixing point of the track and the track support beam. The height difference of the track surface at each point in the circumferential direction shall not be greater than 2mm, and the height difference of the radial corresponding points of the inner and outer horizontal tracks shall not be greater than 1mm. B2.1.3.2 The installation of the circular side rail shall meet the following requirements: a. The elevation of the circular side rail is based on the circular horizontal rail, and the limit deviation is ±2mm; b. The circumference of the circular side rail is based on the circular center line of the trolley, and the distance between the circular side rail and the circular center line of the trolley is +3
c. The height difference between the two rails at the joint of the circular side rail shall not be greater than 1mm, the joint misalignment shall not be greater than 1mm, and the reserved thermal expansion gap of the joint shall comply with the provisions of the equipment technical documents.
B2.1.3.3 The installation of the curved rail (Figure B1) shall meet the following requirements: a. The circumference of the curved rail is based on the center line of the trolley ring. The limit deviation of the distance between the inner and outer curved rails and the center line of the trolley ring (α～', h～b\, C~c\) is ±1.5mm;
b. The manufacturer shall mark the lowest point of the inner and outer curved rails. During installation, the lowest point of the inner curved rail, the lowest point of the outer curved rail and the center point of the ring cooler shall be connected in a straight line with a tolerance of 1mm; 343
JB/T5509| |tt||Figure B1 Curved track
1--Outer curved track; 2-Inner curved track: 3-Car ring center line; 4-Lowest point of outer curved track; 5-Lowest point of inner curved track; 6-Center point of ring type cooler 7-Height difference between radial curved track and circular horizontal track joint of rack shall not exceed 0.5mm, joint misalignment shall not exceed 1mm, and the limit deviation of joint clearance shall be ±1mm;
When installing the curved track, check the size of the curved track, which shall comply with the provisions of the equipment technical documents; the limit deviation of the distance between the guard rail and the curved track is
B2.1.4 Transmission frame and friction plate
B2.1.4.1 The installation of the regular polygon transmission frame (Figure B2) shall meet the following requirements: a.
The limit deviation of the straight line distance a between the intersection of the longitudinal and transverse center lines of the two adjacent trolley outer transmission frames is ±1mm; Figure B2 Installation of regular polygon transmission frame
1-External transmission frame; 2-Inner transmission frame: 3-Side rails; 4-Gear; 5-Trolley annular center line The straight line between the intersection of the longitudinal and transverse center lines of the two adjacent trolley inner transmission frames The deviation from the 6-pole line is ±0.5mm; for each group of seven trolleys, the limit deviation of the arc chord length c of the outer transmission frame is ±3mm, and the limit deviation of the arc chord length d of the inner and outer transmission frames is ±2mm;
The transmission frames of the adjacent two groups of trolleys, the positive and negative values of the tolerances of the inner and outer chord lengths c and d should be staggered to meet the roundness and circumference requirements of the inner and outer frames;
JB/T5509-91
The circumference of the inner transmission frame is based on the annular side rail, and the distance from the gear roller surface to the annular side rail surface. The limit deviation is mm:
The welding of the transmission frame and the reinforcement plate shall comply with the provisions of the equipment technical documents. B2.1.4.2 The installation of the circular friction transmission frame shall meet the following requirements: a.
The roundness of the inner and outer circular friction transmission frames, the difference between the maximum diameter and the minimum diameter shall not be greater than 10mm; the circular friction transmission frames shall be on the same horizontal plane, and the height difference shall not be greater than 5mm. B2.1.4.3 At the connection of the friction plates, the height difference between the two plates shall not exceed 0.5mm, and the horizontal misalignment shall not exceed 1mm. B2.1.5 Trolley
B2.1.5.1 The installation of the exhaust cooling trolley shall meet the following requirements; The gap between the two trolley side plates shall not exceed 6mm; a.
The inner and outer adjustment plates on the trolley side plates shall be adjusted into a circle, and the limit deviation of the roundness is ±10mm. The horizontal misalignment between the adjustment plates shall not exceed 3mm, and there shall be no burrs on the outer edge of the adjustment plate; c. The installation of the trolley strips shall comply with the provisions of the equipment technical documents. B2.1.5.1 The installation of the trolley of the wind cooling machine shall meet the following requirements: For the trolleys assembled on site, the manufacturer shall mark six center points on the upper surface of the inner and outer transmission frames of each trolley according to the requirements of Figure B3, and adjust the center distance (α, α) of the inner and outer transmission frames of each trolley accordingly. The limit deviation is ± mm: the difference in diagonal length (b-b\) shall not be greater than 2 mm (Figure B3);
Figure B3 trolley assembly
1-outer transmission frame; 2-inner transmission frame; 3-center point mark b. The inner and outer adjustment plates at the bottom of the trolley shall be adjusted on the same horizontal plane, and the height difference shall not be greater than 3mrn. The two ends of the adjustment plate shall be smooth and free of burrs to avoid scratching the rubber sealing plate. B2.1.6 Gear wheels and rollers
B2.1.6.1 The extension line of the axial center line of the roller shall pass through the center point of the ring cooler, and the radial center line limit deviation is ±5mm. B2.1.6.2 The roller should be in contact with the friction plate or the bottom surface of the transmission frame. B2.1.6.3 For the support with spring support, the adjustment of the spring compression amount should comply with the provisions of the equipment technical documents. B2.1.6.4
The axial and radial center line limit deviation of the gear wheel located on the outer circle of the friction plate is ±5mm; the elevation limit deviation is ±5mm. For the gear wheel located on the side of the inner transmission frame, the distance from the support surface to the longitudinal center line of the inner transmission frame (Figure B2) has a limit deviation of B2.1.7 Transmission device
B2.1.7.1 The longitudinal and transverse center line limit deviation of the transmission device base is ±1mm; the elevation is based on the upper surface elevation of the friction plate, and the limit deviation is ±1mm,
JB/T5509-91
B2.1.7.2 The active friction wheel shaft and the reducer output shaft should be concentric, and their extension The wire drawing should pass through the center point of the ring cooler and be measured at the center point of the end face of the active friction wheel, with a tolerance of 2mm (Figure B4) Figure B4 Transmission device
1-active friction wheel; 2-reducer; 3-motor: 4-center point of the ring cooler; 5-center point of the end face of the active friction wheel; 6-center point of the output shaft of the reducer B2.1.7.3 The two axial center lines of the active and passive friction wheels should be on a vertical plane with a tolerance of 0.5mm; the misalignment of the end faces of the two friction wheel rims shall not exceed 1mm.
B2.1.7.4 The clamping force of the passive friction wheel shall comply with the provisions of the equipment technical documents. Additional notes:
This standard is proposed and managed by the Xi'an Heavy Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard was drafted by Shanghai Metallurgical Mining Machinery Plant and Xi'an Heavy Machinery Research Institute. The main drafters of this standard are Shuai Hongrui, Sun Yucheng, Chen Jiansheng, and Ye Zi. 3165/1000; The gap between the lower end of the sealing cover and the upper end of the trolley side plate shall comply with the provisions of the equipment technical documents: The rubber sealing plate of the trolley upper seal or the trolley lower seal and the trolley should be in close contact: The upper and lower adjustment of the end seal suspension of the exhaust ring cooler and the rotation of the fan plate should be flexible, especially the stuck phenomenon, and the sealing asbestos rope in the expansion hood should be filled and pressed.
B2.1.2.8 The welding quality of the funnel, air duct and exhaust pipe shall comply with the provisions of the third-level welding seam standard of Chapter 3 of GBJ205. B2.1.3 Track
B2.1.3.1 The installation of the circular horizontal track shall meet the following requirements: The maximum deviation of the radius of the trolley circular centerline is ±1mm; a.
b. The circumference of the circular horizontal track is based on the trolley circular centerline, and the maximum deviation of the distance between the inner and outer circular horizontal tracks and the trolley circular centerline is ±1mm;
The maximum deviation of the track gauge of the inner and outer circular horizontal tracks is ±2mm; c.
d. The maximum deviation of the elevation of the circular horizontal track is ±2mm; The height difference between the two tracks at the track joint shall not be greater than 0.5mm, the joint misalignment shall not be greater than 1mm, and the thermal expansion gap reserved at the joint shall comply with the provisions of the equipment technical documents; e. The inner and outer circular horizontal tracks shall be measured on the same horizontal plane at the fixing point of the track and the track support beam. The height difference of the track surface at each point in the circumferential direction shall not be greater than 2mm, and the height difference of the radial corresponding points of the inner and outer horizontal tracks shall not be greater than 1mm. B2.1.3.2 The installation of the circular side rail shall meet the following requirements: a. The elevation of the circular side rail is based on the circular horizontal rail, and the limit deviation is ±2mm; b. The circumference of the circular side rail is based on the circular center line of the trolley, and the distance between the circular side rail and the circular center line of the trolley is +3
c. The height difference between the two rails at the joint of the circular side rail shall not be greater than 1mm, the joint misalignment shall not be greater than 1mm, and the reserved thermal expansion gap of the joint shall comply with the provisions of the equipment technical documents.
B2.1.3.3 The installation of the curved rail (Figure B1) shall meet the following requirements: a. The circumference of the curved rail is based on the center line of the trolley ring, and the limit deviation of the distance between the inner and outer curved rails and the center line of the trolley ring (α～', h～b\, C~c\) is ±1.5mm;
b. The manufacturer shall mark the lowest point of the inner and outer curved rails. During installation, the lowest point of the inner curved rail, the lowest point of the outer curved rail and the center point of the ring cooler shall be connected in a straight line with a tolerance of 1mm; 343
JB/T5509| |tt||Figure B1 Curved track
1--Outer curved track; 2-Inner curved track: 3-Car ring center line; 4-Lowest point of outer curved track; 5-Lowest point of inner curved track; 6-Center point of ring cooler 7-Frame radial dyeing The height difference between the curved track and the circular horizontal track joint shall not be greater than 0.5mm, the joint misalignment shall not be greater than 1mm, and the joint gap limit deviation is ±1mm;
When installing the curved track, check the curved track size, which shall comply with the provisions of the equipment technical documents; the limit deviation of the distance between the guard rail and the curved track is
B2.1.4 Transmission frame and friction plate
B2.1.4.1 The installation of the regular polygon transmission frame (Figure B2) shall meet the following requirements: a.
The limit deviation of the straight line distance a between the intersection of the longitudinal and transverse center lines of the two adjacent trolley outer transmission frames is ±1mm; Figure B2 Installation of regular polygon transmission frame
1-External transmission frame; 2-Inner transmission frame: 3-Side rails; 4-Gear; 5-Trolley annular center line The straight line between the intersection of the longitudinal and transverse center lines of the two adjacent trolley inner transmission frames The deviation from the 6-pole line is ±0.5mm; for each group of seven trolleys, the limit deviation of the arc chord length c of the outer transmission frame is ±3mm, and the limit deviation of the arc chord length d of the inner and outer transmission frames is ±2mm;
The transmission frames of the adjacent two groups of trolleys, the positive and negative values of the tolerances of the inner and outer chord lengths c and d should be staggered to meet the roundness and circumference requirements of the inner and outer frames;
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The circumference of the inner transmission frame is based on the annular side rail, and the distance from the gear roller surface to the annular side rail surface. The limit deviation is mm:
The welding of the transmission frame and the reinforcement plate shall comply with the provisions of the equipment technical documents. B2.1.4.2 The installation of the circular friction transmission frame shall meet the following requirements: a.
The roundness of the inner and outer circular friction transmission frames, the difference between the maximum diameter and the minimum diameter shall not be greater than 10mm; the circular friction transmission frames shall be on the same horizontal plane, and the height difference shall not be greater than 5mm. B2.1.4.3 At the connection of the friction plates, the height difference between the two plates shall not exceed 0.5mm, and the horizontal misalignment shall not exceed 1mm. B2.1.5 Trolley
B2.1.5.1 The installation of the exhaust cooling trolley shall meet the following requirements; The gap between the two trolley side plates shall not exceed 6mm; a.
The inner and outer adjustment plates on the trolley side plates shall be adjusted into a circle, and the limit deviation of the roundness is ±10mm. The horizontal misalignment between the adjustment plates shall not exceed 3mm, and there shall be no burrs on the outer edge of the adjustment plate; c. The installation of the trolley strips shall comply with the provisions of the equipment technical documents. B2.1.5.1 The installation of the trolley of the wind cooling machine shall meet the following requirements: For the trolleys assembled on site, the manufacturer shall mark six center points on the upper surface of the inner and outer transmission frames of each trolley according to the requirements of Figure B3, and adjust the center distance (α, α) of the inner and outer transmission frames of each trolley accordingly. The limit deviation is ± mm: the difference in diagonal length (b-b\) shall not be greater than 2 mm (Figure B3);
Figure B3 trolley assembly
1-outer transmission frame; 2-inner transmission frame; 3-center point mark b. The inner and outer adjustment plates at the bottom of the trolley shall be adjusted on the same horizontal plane, and the height difference shall not be greater than 3mrn. The two ends of the adjustment plate shall be smooth and free of burrs to avoid scratching the rubber sealing plate. B2.1.6 Gear wheels and rollers
B2.1.6.1 The extension line of the axial center line of the roller shall pass through the center point of the ring cooler, and the radial center line limit deviation is ±5mm. B2.1.6.2 The roller should be in contact with the friction plate or the bottom surface of the transmission frame. B2.1.6.3 For the support with spring support, the adjustment of the spring compression amount should comply with the provisions of the equipment technical documents. B2.1.6.4
The axial and radial center line limit deviation of the gear wheel located on the outer circle of the friction plate is ±5mm; the elevation limit deviation is ±5mm. For the gear wheel located on the side of the inner transmission frame, the distance from the support surface to the longitudinal center line of the inner transmission frame (Figure B2) has a limit deviation of B2.1.7 Transmission device
B2.1.7.1 The longitudinal and transverse center line limit deviation of the transmission device base is ±1mm; the elevation is based on the upper surface elevation of the friction plate, and the limit deviation is ±1mm,
JB/T5509-91
B2.1.7.2 The active friction wheel shaft and the reducer output shaft should be concentric, and their extension The wire drawing should pass through the center point of the ring cooler and be measured at the center point of the end face of the active friction wheel, with a tolerance of 2mm (Figure B4) Figure B4 Transmission device
1-active friction wheel; 2-reducer; 3-motor: 4-center point of the ring cooler; 5-center point of the end face of the active friction wheel; 6-center point of the output shaft of the reducer B2.1.7.3 The two axial center lines of the active and passive friction wheels should be on a vertical plane with a tolerance of 0.5mm; the misalignment of the end faces of the two friction wheel rims shall not exceed 1mm.
B2.1.7.4 The clamping force of the passive friction wheel shall comply with the provisions of the equipment technical documents. Additional notes:
This standard is proposed and managed by the Xi'an Heavy Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard was drafted by Shanghai Metallurgical Mining Machinery Plant and Xi'an Heavy Machinery Research Institute. The main drafters of this standard are Shuai Hongrui, Sun Yucheng, Chen Jiansheng, and Ye Zi. 3165/1000; The gap between the lower end of the sealing cover and the upper end of the trolley side plate shall comply with the provisions of the equipment technical documents: The rubber sealing plate of the trolley upper seal or the trolley lower seal and the trolley should be in close contact: The upper and lower adjustment of the end seal suspension of the exhaust ring cooler and the rotation of the fan plate should be flexible, especially the stuck phenomenon, and the sealing asbestos rope in the expansion hood should be filled and pressed.
B2.1.2.8 The welding quality of the funnel, air duct and exhaust pipe shall comply with the provisions of the third-level welding seam standard of Chapter 3 of GBJ205. B2.1.3 Track
B2.1.3.1 The installation of the circular horizontal track shall meet the following requirements: The maximum deviation of the radius of the trolley circular centerline is ±1mm; a.
b. The circumference of the circular horizontal track is based on the trolley circular centerline, and the maximum deviation of the distance between the inner and outer circular horizontal tracks and the trolley circular centerline is ±1mm;
The maximum deviation of the track gauge of the inner and outer circular horizontal tracks is ±2mm; c.
d. The maximum deviation of the elevation of the circular horizontal track is ±2mm; The height difference between the two tracks at the track joint shall not be greater than 0.5mm, the joint misalignment shall not be greater than 1mm, and the thermal expansion gap reserved at the joint shall comply with the provisions of the equipment technical documents; e. The inner and outer circular horizontal tracks shall be measured on the same horizontal plane at the fixing point of the track and the track support beam. The height difference of the track surface at each point in the circumferential direction shall not be greater than 2mm, and the height difference of the radial corresponding points of the inner and outer horizontal tracks shall not be greater than 1mm. B2.1.3.2 The installation of the circular side rail shall meet the following requirements: a. The elevation of the circular side rail is based on the circular horizontal rail, and the limit deviation is ±2mm; b. The circumference of the circular side rail is based on the circular center line of the trolley, and the distance between the circular side rail and the circular center line of the trolley is +3
c. The height difference between the two rails at the joint of the circular side rail shall not be greater than 1mm, the joint misalignment shall not be greater than 1mm, and the reserved thermal expansion gap of the joint shall comply with the provisions of the equipment technical documents.
B2.1.3.3 The installation of the curved rail (Figure B1) shall meet the following requirements: a. The circumference of the curved rail is based on the center line of the trolley ring, and the limit deviation of the distance between the inner and outer curved rails and the center line of the trolley ring (α～', h～b\, C~c\) is ±1.5mm;
b. The manufacturer shall mark the lowest point of the inner and outer curved rails. During installation, the lowest point of the inner curved rail, the lowest point of the outer curved rail and the center point of the ring cooler shall be connected in a straight line with a tolerance of 1mm; 343
JB/T5509| |tt||Figure B1 Curved track
1--Outer curved track; 2-Inner curved track: 3-Car ring center line; 4-Lowest point of outer curved track; 5-Lowest point of inner curved track; 6-Center point of ring cooler 7-Frame radial dyeing The height difference between the curved track and the circular horizontal track joint shall not be greater than 0.5mm, the joint misalignment shall not be greater than 1mm, and the joint gap limit deviation is ±1mm;
When installing the curved track, check the curved track size, which shall comply with the provisions of the equipment technical documents; the limit deviation of the distance between the guard rail and the curved track is
B2.1.4 Transmission frame and friction plate
B2.1.4.1 The installation of the regular polygon transmission frame (Figure B2) shall meet the following requirements: a.
The limit deviation of the straight line distance a between the intersection of the longitudinal and transverse center lines of the two adjacent trolley outer transmission frames is ±1mm; Figure B2 Installation of regular polygon transmission frame
1-External transmission frame; 2-Inner transmission frame: 3-Side rails; 4-Gear; 5-Trolley annular center line The straight line between the intersection of the longitudinal and transverse center lines of the two adjacent trolley inner transmission frames The deviation from the 6-pole line is ±0.5mm; for each group of seven trolleys, the limit deviation of the arc chord length c of the outer transmission frame is ±3mm, and the limit deviation of the arc chord length d of the inner and outer transmission frames is ±2mm;
The transmission frames of the adjacent two groups of trolleys, the positive and negative values of the tolerances of the inner and outer chord lengths c and d should be staggered to meet the roundness and circumference requirements of the inner and outer frames;
JB/T5509-91
The circumference of the inner transmission frame is based on the annular side rail, and the distance from the gear roller surface to the annular side rail surface. The limit deviation is mm:
The welding of the transmission frame and the reinforcement plate shall comply with the provisions of the equipment technical documents. B2.1.4.2 The installation of the circular friction transmission frame shall meet the following requirements: a.
The roundness of the inner and outer circular friction transmission frames, the difference between the maximum diameter and the minimum diameter shall not be greater than 10mm; the circular friction transmission frames shall be on the same horizontal plane, and the height difference shall not be greater than 5mm. B2.1.4.3 At the friction plate connection, the height difference between the two plates shall not exceed 0.5mm, and the horizontal misalignment shall not exceed 1mm. B2.1.5 Trolley
B2.1.5.1 The installation of the exhaust cooling trolley shall meet the following requirements; The gap between the two trolley side plates shall not exceed 6mm; a.
The inner and outer adjustment plates on the trolley side plates shall be adjusted into a circle, and the limit deviation of the roundness is ±10mm. The horizontal misalignment between the adjustment plates shall not exceed 3mm, and there shall be no burrs on the outer edge of the adjustment plate; c. The installation of the trolley strips shall comply with the provisions of the equipment technical documents. B2.1.5.1 The installation of the trolley of the wind cooling machine shall meet the following requirements: For the trolleys assembled on site, the manufacturer shall mark six center points on the upper surface of the inner and outer transmission frames of each trolley according to the requirements of Figure B3, and adjust the center distance (α, α) of the inner and outer transmission frames of each trolley accordingly. The limit deviation is ± mm: the difference in diagonal length (b-b\) shall not be greater than 2 mm (Figure B3);
Figure B3 trolley assembly
1-outer transmission frame; 2-inner transmission frame; 3-center point mark b. The inner and outer adjustment plates at the bottom of the trolley shall be adjusted on the same horizontal plane, and the height difference shall not be greater than 3mrn. The two ends of the adjustment plate shall be smooth and free of burrs to avoid scratching the rubber sealing plate. B2.1.6 Gear wheels and rollers
B2.1.6.1 The extension line of the axial center line of the roller shall pass through the center point of the ring cooler, and the radial center line limit deviation is ±5mm. B2.1.6.2 The roller should be in contact with the friction plate or the bottom surface of the transmission frame. B2.1.6.3 For the support with spring support, the adjustment of the spring compression amount should comply with the provisions of the equipment technical documents. B2.1.6.4
The axial and radial center line limit deviation of the gear wheel located on the outer circle of the friction plate is ±5mm; the elevation limit deviation is ±5mm. For the gear wheel located on the side of the inner transmission frame, the distance from the support surface to the longitudinal center line of the inner transmission frame (Figure B2) has a limit deviation of B2.1.7 Transmission device
B2.1.7.1 The longitudinal and transverse center line limit deviation of the transmission device base is ±1mm; the elevation is based on the upper surface elevation of the friction plate, and the limit deviation is ±1mm,
JB/T5509-91
B2.1.7.2 The active friction wheel shaft and the reducer output shaft should be concentric, and their extension The wire drawing should pass through the center point of the ring cooler and be measured at the center point of the end face of the active friction wheel, with a tolerance of 2mm (Figure B4) Figure B4 Transmission device
1-active friction wheel; 2-reducer; 3-motor: 4-center point of the ring cooler; 5-center point of the end face of the active friction wheel; 6-center point of the output shaft of the reducer B2.1.7.3 The two axial center lines of the active and passive friction wheels should be on a vertical plane with a tolerance of 0.5mm; the misalignment of the end faces of the two friction wheel rims shall not exceed 1mm.
B2.1.7.4 The clamping force of the passive friction wheel shall comply with the provisions of the equipment technical documents. Additional notes:
This standard is proposed and managed by the Xi'an Heavy Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard was drafted by Shanghai Metallurgical Mining Machinery Plant and Xi'an Heavy Machinery Research Institute. The main drafters of this standard are Shuai Hongrui, Sun Yucheng, Chen Jiansheng, and Ye Zi. 3162. The installation of the circular side rails shall meet the following requirements: a. The elevation of the circular side rails is based on the circular horizontal rails, and the limit deviation is ±2mm; b. The circumference of the circular side rails is based on the circular center line of the trolley, and the distance between the circular side rails and the circular center line of the trolley is +3
c. The height difference between the two rails at the joint of the circular side rails shall not be greater than 1mm, the joint misalignment shall not be greater than 1mm, and the reserved thermal expansion gap of the joint shall comply with the provisions of the equipment technical documents.
B2.1.3.3 The installation of the curved rail (Figure B1) shall meet the following requirements: a. The circumference of the curved rail is based on the center line of the trolley ring. The limit deviation of the distance between the inner and outer curved rails and the center line of the trolley ring (α～', h～b\, C~c\) is ±1.5mm;
b. The manufacturer shall mark the lowest point of the inner and outer curved rails. During installation, the lowest point of the inner curved rail, the lowest point of the outer curved rail and the center point of the ring cooler shall be connected in a straight line with a tolerance of 1mm; 343
JB/T5509| |tt||Figure B1 Curved track
1--Outer curved track; 2-Inner curved track: 3-Car ring center line; 4-Lowest point of outer curved track; 5-Lowest point of inner curved track; 6-Center point of ring type cooler 7-Height difference between radial curved track and circular horizontal track joint of rack shall not exceed 0.5mm, joint misalignment shall not exceed 1mm, and the limit deviation of joint clearance shall be ±1mm;
When installing the curved track, check the size of the curved track, which shall comply with the provisions of the equipment technical documents; the limit deviation of the distance between the guard rail and the curved track is
B2.1.4 Transmission frame and friction plate
B2.1.4.1 The installation of the regular polygon transmission frame (Figure B2) shall meet the following requirements: a.
The limit deviation of the straight line distance a between the intersection of the longitudinal and transverse center lines of the two adjacent trolley outer transmission frames is ±1mm; Figure B2 Installation of regular polygon transmission frame
1-External transmission frame; 2-Inner transmission frame: 3-Side rails; 4-Gear; 5-Trolley annular center line The straight line between the intersection of the longitudinal and transverse center lines of the two adjacent trolley inner transmission frames The deviation from the 6-pole line is ±0.5mm; for each group of seven trolleys, the limit deviation of the arc chord length c of the outer transmission frame is ±3mm, and the limit deviation of the arc chord length d of the inner and outer transmission frames is ±2mm;
The transmission frames of the adjacent two groups of trolleys, the positive and negative values of the tolerances of the inner and outer chord lengths c and d should be staggered to meet the roundness and circumference requirements of the inner and outer frames;
JB/T5509-91
The circumference of the inner transmission frame is based on the annular side rail, and the distance from the gear roller surface to the annular side rail surface. The limit deviation is mm:
The welding of the transmission frame and the reinforcement plate shall comply with the provisions of the equipment technical documents. B2.1.4.2 The installation of the circular friction transmission frame shall meet the following requirements: a.
The roundness of the inner and outer circular friction transmission frames, the difference between the maximum diameter and the minimum diameter shall not be greater than 10mm; the circular friction transmission frames shall be on the same horizontal plane, and the height difference shall not be greater than 5mm. B2.1.4.3 At the connection of the friction plates, the height difference between the two plates shall not exceed 0.5mm, and the horizontal misalignment shall not exceed 1mm. B2.1.5 Trolley
B2.1.5.1 The installation of the exhaust cooling trolley shall meet the following requirements; The gap between the two trolley side plates shall not exceed 6mm; a.
The inner and outer adjustment plates on the trolley side plates shall be adjusted into a circle, and the limit deviation of the roundness is ±10mm. The horizontal misalignment between the adjustment plates shall not exceed 3mm, and there shall be no burrs on the outer edge of the adjustment plate; c. The installation of the trolley strips shall comply with the provisions of the equipment technical documents. B2.1.5.1 The installation of the trolley of the wind cooling machine shall meet the following requirements: For the trolleys assembled on site, the manufacturer shall mark six center points on the upper surface of the inner and outer transmission frames of each trolley according to the requirements of Figure B3, and adjust the center distance (α, α) of the inner and outer transmission frames of each trolley accordingly. The limit deviation is ± mm: the difference in diagonal length (b-b\) shall not be greater than 2 mm (Figure B3);
Figure B3 trolley assembly
1-outer transmission frame; 2-inner transmission frame; 3-center point mark b. The inner and outer adjustment plates at the bottom of the trolley shall be adjusted on the same horizontal plane, and the height difference shall not be greater than 3mrn. The two ends of the adjustment plate shall be smooth and free of burrs to avoid scratching the rubber sealing plate. B2.1.6 Gear wheels and rollers
B2.1.6.1 The extension line of the axial center line of the roller shall pass through the center point of the ring cooler, and the radial center line limit deviation is ±5mm. B2.1.6.2 The roller should be in contact with the friction plate or the bottom surface of the transmission frame. B2.1.6.3 For the support with spring support, the adjustment of the spring compression amount should comply with the provisions of the equipment technical documents. B2.1.6.4
The axial and radial center line limit deviation of the gear wheel located on the outer circle of the friction plate is ±5mm; the elevation limit deviation is ±5mm. For the gear wheel located on the side of the inner transmission frame, the distance from the support surface to the longitudinal center line of the inner transmission frame (Figure B2) has a limit deviation of B2.1.7 Transmission device
B2.1.7.1 The longitudinal and transverse center line limit deviation of the transmission device base is ±1mm; the elevation is based on the upper surface elevation of the friction plate, and the limit deviation is ±1mm,
JB/T5509-91
B2.1.7.2 The active friction wheel shaft and the reducer output shaft should be concentric, and their extension The wire drawing should pass through the center point of the ring cooler and be measured at the center point of the end face of the active friction wheel, with a tolerance of 2mm (Figure B4) Figure B4 Transmission device
1-active friction wheel; 2-reducer; 3-motor: 4-center point of the ring cooler; 5-center point of the end face of the active friction wheel; 6-center point of the output shaft of the reducer B2.1.7.3 The two axial center lines of the active and passive friction wheels should be on a vertical plane with a tolerance of 0.5mm; the misalignment of the end faces of the two friction wheel rims shall not exceed 1mm.
B2.1.7.4 The clamping force of the passive friction wheel shall comply with the provisions of the equipment technical documents. Additional notes:
This standard is proposed and managed by the Xi'an Heavy Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard was drafted by Shanghai Metallurgical Mining Machinery Plant and Xi'an Heavy Machinery Research Institute. The main drafters of this standard are Shuai Hongrui, Sun Yucheng, Chen Jiansheng, and Ye Zi. 3162. The installation of the circular side rails shall meet the following requirements: a. The elevation of the circular side rails is based on the circular horizontal rails, and the limit deviation is ±2mm; b. The circumference of the circular side rails is based on the circular center line of the trolley, and the distance between the circular side rails and the circular center line of the trolley is +3
c. The height difference between the two rails at the joint of the circular side rails shall not be greater than 1mm, the joint misalignment shall not be greater than 1mm, and the reserved thermal expansion gap of the joint shall comply with the provisions of the equipment technical documents.
B2.1.3.3 The installation of the curved rail (Figure B1) shall meet the following requirements: a. The circumference of the curved rail is based on the center line of the trolley ring, and the limit deviation of the distance between the inner and outer curved rails and the center line of the trolley ring (α～', h～b\, C~c\) is ±1.5mm;
b. The manufacturer shall mark the lowest point of the inner and outer curved rails. During installation, the lowest point of the inner curved rail, the lowest point of the outer curved rail and the center point of the ring cooler shall be connected in a straight line with a tolerance of 1mm; 343
JB/T5509| |tt||Figure B1 Curved track
1--Outer curved track; 2-Inner curved track: 3-Car ring center line; 4-Lowest point of outer curved track; 5-Lowest point of inner curved track; 6-Center point of ring cooler 7-Frame radial dyeing The height difference between the curved track and the circular horizontal track joint shall not be greater than 0.5mm, the joint misalignment shall not be greater than 1mm, and the joint gap limit deviation is ±1mm;
When installing the curved track, check the curved track size, which shall comply with the provisions of the equipment technical documents; the limit deviation of the distance between the guard rail and the curved track is
B2.1.4 Transmission frame and friction plate
B2.1.4.1 The installation of the regular polygon transmission frame (Figure B2) shall meet the following requirements: a.
The limit deviation of the straight line distance a between the intersection of the longitudinal and transverse center lines of the two adjacent trolley outer transmission frames is ±1mm; Figure B2 Installation of regular polygon transmission frame
1-External transmission frame; 2-Inner transmission frame: 3-Side rails; 4-Gear; 5-Trolley annular center line The straight line between the intersection of the longitudinal and transverse center lines of the two adjacent trolley inner transmission frames The deviation from the 6-pole line is ±0.5mm; for each group of seven trolleys, the limit deviation of the arc chord length c of the outer transmission frame is ±3mm, and the limit deviation of the arc chord length d of the inner and outer transmission frames is ±2mm;
The transmission frames of the adjacent two groups of trolleys, the positive and negative values of the tolerances of the inner and outer chord lengths c and d should be staggered to meet the roundness and circumference requirements of the inner and outer frames;
JB/T5509-91
The circumference of the inner transmission frame is based on the annular side rail, and the distance from the gear roller surface to the annular side rail surface. The limit deviation is mm:
The welding of the transmission frame and the reinforcement plate shall comply with the provisions of the equipment technical documents. B2.1.4.2 The installation of the circular friction transmission frame shall meet the following requirements: a.
The roundness of the inner and outer circular friction transmission frames, the difference between the maximum diameter and the minimum diameter shall not be greater than 10mm; the circular friction transmission frames shall be on the same horizontal plane, and the height difference shall not be greater than 5mm. B2.1.4.3 At the friction plate connection, the height difference between the two plates shall not exceed 0.5mm, and the horizontal misalignment shall not exceed 1mm. B2.1.5 Trolley
B2.1.5.1 The installation of the exhaust cooling trolley shall meet the following requirements; The gap between the two trolley side plates shall not exceed 6mm; a.
The inner and outer adjustment plates on the trolley side plates shall be adjusted into a circle, and the limit deviation of the roundness is ±10mm. The horizontal misalignment between the adjustment plates shall not exceed 3mm, and there shall be no burrs on the outer edge of the adjustment plate; c. The installation of the trolley strips shall comply with the provisions of the equipment technical documents. B2.1.5.1 The installation of the trolley of the wind cooling machine shall meet the following requirements: For the trolleys assembled on site, the manufacturer shall mark six center points on the upper surface of the inner and outer transmission frames of each trolley according to the requirements of Figure B3, and adjust the center distance (α, α) of the inner and outer transmission frames of each trolley accordingly. The limit deviation is ± mm: the difference in diagonal length (b-b\) shall not be greater than 2 mm (Figure B3);
Figure B3 trolley assembly
1-outer transmission frame; 2-inner transmission frame; 3-center point mark b. The inner and outer adjustment plates at the bottom of the trolley shall be adjusted on the same horizontal plane, and the height difference shall not be greater than 3mrn. The two ends of the adjustment plate shall be smooth and free of burrs to avoid scratching the rubber sealing plate. B2.1.6 Gear wheels and rollers
B2.1.6.1 The extension line of the axial center line of the roller shall pass through the center point of the ring cooler, and the radial center line limit deviation is ±5mm. B2.1.6.2 The roller should be in contact with the friction plate or the bottom surface of the transmission frame. B2.1.6.3 For the support with spring support, the adjustment of the spring compression amount should comply with the provisions of the equipment technical documents. B2.1.6.4
The axial and radial center line limit deviation of the gear wheel located on the outer circle of the friction plate is ±5mm; the elevation limit deviation is ±5mm. For the gear wheel located on the side of the inner transmission frame, the distance from the support surface to the longitudinal center line of the inner transmission frame (Figure B2) has a limit deviation of B2.1.7 Transmission device
B2.1.7.1 The longitudinal and transverse center line limit deviation of the transmission device base is ±1mm; the elevation is based on the upper surface elevation of the friction plate, and the limit deviation is ±1mm,
JB/T5509-91
B2.1.7.2 The active friction wheel shaft and the reducer output shaft should be concentric, and their extension The wire drawing should pass through the center point of the ring cooler and be measured at the center point of the end face of the active friction wheel, with a tolerance of 2mm (Figure B4) Figure B4 Transmission device
1-active friction wheel; 2-reducer; 3-m
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