Some standard content:
TCS73.120
Machinery Industry Standard of the People's Republic of China
TRT8917-1999
Roller press
1999-06-28 Issued
National Machinery Industry Bureau
200H-01-01 Implementation
JB/T8917—1999
Appendix A of this standard is a reminder appendix.
This standard was issued and managed by the National Mining Machinery Standardization Technical Committee. The responsible drafting unit of this standard: CITIC Heavy Machinery Co., Ltd. The main drafters of this standard: Duan Kaxu, Wang Haoling, Zhang Guangyu, Huang Da, and Ming. 1
Machinery Industry Standard of the People's Republic of China
Roller pressbzxz.net
JB/8917-1999
This standard specifies the basic parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of roll presses. This standard is applicable to roll presses used for grinding and grinding materials in cement, metallurgy, coal and other industrial sectors. Referenced Standards
The provisions contained in the following standards constitute the text of this standard through reference in this standard. When this standard was published, the versions shown were valid. All standards will be sampled. All parties using this standard shall discuss the possibility of using the latest versions of the following standards: GB/T1804—1952
G8/T11345—1989
GB/13306.1991
GR/T13384—1992
JB/T1265-1993
JE16041998
JD/T $000.12—1998
3 Product classification
General tolerances Unspecified tolerances for dimensional characteristics
Manual ultrasonic testing and deep testing of welds and results of welds Grade labels
General technical conditions for packaging of electromechanical products
Technical conditions for special parts and main shafts of 25-200M turbines Mineral products model compilation method
General technical conditions for heavy machinery
3.1 The product model of the roller press shall comply with the provisions of JB 16. 3.2 Determination of specifications
3.2.1 When the roller diameter is above 700mm (including 700mm), the integral multiple of 50mm shall be taken; 3.2.2 When the surface width is above 180mm (including 100mm), the integral multiple of 20mm shall be taken. 3.3 The basic parameters of the press are shown in Appendix A (Informative Appendix) 4 Technical Requirements
4.1 Basic Technical Requirements
4.1.1 The product shall comply with the requirements of the technical standards and be manufactured, installed and used in accordance with the drawings and technical documents approved by the prescribed procedures. The technical requirements specified in the standards, samples and technical documents shall comply with the provisions of the relevant national standards and general standards for the electromechanical industry. 4.1.2 The tolerance dimensions and batch limit deviations marked on the drawings shall comply with the provisions of AT1 or AT4, among which the machined parts are grade A and the non-machined welded parts are grade C.
4.2 Main and partial requirements
4.2.1 Frame
Before machining and drilling holes for the bearing pins, the channel (i.e. the inner frame) for installing the bearing seat needs to be adjusted, and the distance between the end parts and the shaft is approved by the Machinery Industry Bureau on June 28, 1999. 2000-401-01 implementation
JE/T8917-1999
The verticality error of the bearing plane to the carbon surface of the lower frame shall not exceed mm, and the parallelism error of the two end parts to the bearing seat shall not exceed 0.2mm (see Figure 1)
4.2 Bearing seat
4.2.2.1 The bearing seat body shall be provided with a cooling channel for the bearing jacket, and a water test shall be carried out for 10 days. If the shaft temperature can be guaranteed not to exceed 60 during use, the water channel may not be added.
4.2.2.2 The bearing seat with water channel and the inner ring steel bag of the water channel are made of steel plate rolled and welded. The transverse welding and circumferential welding are subjected to ultrasonic flaw detection inspection, which shall comply with the provisions of Class B in GB/11345. 4.2.2.3 The upper and lower contact surfaces of the bearing seat body and the machine channel shall be reduced by measures to reduce the wear of the parts. 4.2.3 Extrusion forging
4.2.3.1 The forging body can be made of integral forging or split hot-loading. The forgings shall comply with the surface grade in the ultrasonic flaw detection acceptance standard in JB/T1265.
4.2.3.1.1 The material of the integral forging body shall be 34CMo with good comprehensive mechanical properties and weldability, or a type with similar performance. 4.2.3.1.2 The temperature of the forging and hot-loading of the split forging body shall not be less than 10℃. 4.2.3.2 When selecting a circular inner hole bearing, select a suitable axial measurement instrument to measure the shaft position according to the bearing model, and the shaft position should meet the requirements of the drawing.
4.2.3.3 If the pressure roller is in contact with the material, measures such as surfacing welding of wear-resistant hard layer or assembling wear-resistant roller are required. The hardness of the wear-resistant layer is above 55HRC, and there may be individual cracks on the surface of the welded hard layer, but no axial cracks are allowed. The crack length does not exceed 40mm, and the distance between cracks is not less than 10hmm: the assembled wear-resistant radial sleeve is not allowed to have cracks. 4.2.3.4 The tolerance value of the surface hard layer of the surfacing roller is 2ntm. The tolerance of the surface after the friction of the surface layer is 4mlL4.2.3.5 The tolerance of the flatness of the hard layer of the cladding silver end is 2mm4.2.4 Hydraulic positive system
The hydraulic stop system of the press should adopt the accumulator system to absorb vibration and avoid the friction of the parts and the waste of energy when the pump is turned on for a long time.
4.7.4.2 Each function in the hydraulic system requires flexible action and reliable performance. 42.4.3 Before assembling the pipelines of the full pressure system, they should be loaded first, neutralized with weak pressure, cleaned, and checked for residual impurities after drying. The pipe layout should be reasonable, and the pipe ends should be avoided as much as possible. ?
JB Hall 8917—1999
4.2.4.4 The error of the pressure detection instrument and meter in the hydraulic system is less than 2%. 4.2.5 Transmission device
4.2.5.1 The transmission device of the press can adopt the transmission device integral movable type, partial integral hanging type, full hanging type, and floor type.
4.1.5.2 The reducer of the integral hanging type and partial hanging type transmission device is a hollow output shaft. The shaft and the shaft head are matched with H6/6.4.1.5.3 The mixing type and partial hanging type transmission device should be equipped with a torque support device to balance the reaction torque of the reducer during operation. The support device must be able to compensate for the movement of the transmission device on the frame with the shaft. 4.2.5.4 The floor type and partial hanging type transmission device are equipped with a compensation mechanism to compensate for the displacement caused by the movement of the shaft on the frame. 4.2.5.5 Various transmission types need to be equipped with an overload protection device to avoid permanent damage to the transmission device when the shaft is seriously overloaded. 4.3. Assembly and installation requirements
4.3. After the press is installed, there should be a clearance of 0.3-.8m between the upper plane of the bearing seat and the top beam of the frame. 4.3.2 When the hydraulic system pressure is 1MPa and the two whips are close to the original solidification position, the clearance should be within the range of 8~12mm, and the end face misalignment should not be greater than 3mm
4.3.3 The press is manufactured in batches and transported in parts. When using the current frequency installation, the installation accuracy of the lower machine channel is: a) The upper plane deviation difference a when the two lower frames are installed:! When the distance between the center lines of the two lower frames is 1m, a is 0.8mm; 2) when >1m, α is 1.0mm (see Figure 2b). The longitudinal center lines of the two lower frames are parallel: 1) When the length of the lower frame is ≤3.5m, b=1mm: 2) When >3.5m, bm1.5mm (see Figure 2)) The center line of the two lower frames (the center line of the installation center hole) is 0.8mm (see Figure 2) Figure 2
4.3.4 After installation, check the radial chain measurement to make the error between the displayed radial chain and the actual chain transmission not exceed ±1 beat , adjust the maximum clearance limit and stop and close, ensure that the chain exceeds the original height by 30 degrees, the main motor of the press will automatically stop 4.4 Transfer requirements
During the operation of the press, the temperature of the main shaft shall not exceed 60T, and the oil overflow of the reducer shall not exceed 5 degrees. 4.5 Coating requirements
The coating of the product shall comply with the provisions of IB/T5000.12, 5 Test methods
JB/T89[7—1999
5.1 For the shaft where the inner hole of the cone is poorly matched, the cone detector shall be used to detect the size of the standard shaft. 52 Light surface hardness test: 12 points are tested each time, and then the tooth value is used as the chain surface hardness. The distribution of the 12 points is based on the upward selection of 9 main lines, and one point is taken from the middle of each line and the end face of the noise radiation, and one point is taken from the roller width. 5.3. The transmission system needs to be tested in the factory. The transmission system does not need to be tested except for the products of each specification. After the test, the following tests need to be done: a) The water quality test of the water passage of the bearing on the bearing seat and the cooling water of the transmission must be carried out at 0.6MPa, and the pressure must be maintained for 1nmin to minimize leakage: b) The filter pressure system must be pressure tested, and the pressure must be maintained for 30min without leakage. The overall filter pressure system must be tested at 3 times the set pressure. After maintaining the pressure for 24h, the system pressure must not be reduced by more than 10%: ) The lubrication system must be charged until there is lubrication overflow at each lubrication point. 6 Inspection specifications
1 Basic products must be inspected by the factory. The product can be shipped only after the inspection by the inspection department. The attached document proves the authenticity of the qualified product quality. 6.2 The content and results of the factory inspection shall comply with the provisions of 4.1, 4.2, 4.5, 7.1 and 7.2. 3 Type inspection shall be carried out in any of the following situations: 1) The first product:
b) There are major changes in design, material and manufacturing process, which may affect product performance; c) When the production is stopped for a long time and resumed; d) There are obvious differences between the inspection results and the previous type inspection. 6.4 The content of the type inspection shall include all the requirements of this standard. Marking, packaging, transportation and storage
7.1 The product label shall be fixed in a strict and fixed position, and its type and size shall comply with the provisions of GB/T13306. And indicate the following content:) Manufacturing! "Name;
b) Product name and specifications:
) Product main technical specifications:
d) Factory number:
e) Manufacturing date.
7.2 Product packaging should comply with the provisions of GB/T13384 and adapt to the storage regulations of land and water transportation departments. In addition, the storage place of the product should be equipped with anti-penetration, anti-corrosion and anti-damage facilities. The product should be pre-squeezed, deformed and deformed by gravity. Products with a long storage period should be inspected and maintained regularly. 7.4 The technical delivery items attached to the machine include:
) Packing list and delivery list;
b) Product certificate of conformity:
c) Product installation and use instructions:
d) Product general drawing, basic drawing, main component drawing:) Easy-to-grip parts list.
Basic parameters of the press are shown in Table A1.
Basic technical parameters
Yoke diameter
Effective width
Line speed
Material width
Equipment speed
Machine ratio
Production volume
Output particle size
Note: J8.T8917-1999
Appendix A
(Suggestive appendix)
Basic parameters of the press
0800×200
2 × 90
10×300
2×135
Note: The general production plate is a kind of natural material with a power index of 9~1kW·h. 1000 × 4()
2 × 200
75~110
10X0 ×634)
2×315
130-200
14UU1US
450-486
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