This standard specifies the type and main technical parameters, technical requirements, test methods, inspection rules and packaging and transportation requirements of roller thin plate leveling machines for electrical use. JB/T 6460-1992 Roller thin plate leveling machines for electrical use JB/T6460-1992 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T6460-1992
Electrical Roller Thin Plate Leveler
Published on August 6, 1992
Implementation by the Ministry of Machinery and Electronics Industry of the People's Republic of China on January 1, 1993
Mechanical Industry Standard of the People's Republic of China
Electrical Roller Thin Plate Leveler
1 Subject Content and Scope of Application
JB/T6460-1992
This standard specifies the type and main technical parameters, technical requirements, test methods, inspection rules and packaging and transportation requirements of electrical roller thin plate levelers.
This standard applies to electrical roller thin plate levelers (hereinafter referred to as thin plate levelers). 2 Reference standards
GB10095
GB11368
JB2759
JB3836
Packaging, storage and transportation pictorial symbols
Precision of involute cylindrical gears
Cleanliness of gear transmission devices
General technical conditions for packaging of electromechanical products
Compilation and management of product models for special electrical equipment Special electrical equipment
Special electrical equipment
Special electrical equipment
Special electrical equipment||tt ||Electrical equipment
Electrical equipment
General technical conditions for cast iron parts
General technical conditions for nonferrous alloy castings
General technical conditions for welded parts
General technical conditions
Machining
General technical conditions
General technical conditions
ZBJ50004 Determination of sound pressure level of metal cutting machine tools 3 Terms
3.1 Leveling adjustment range
The adjustment range of the upper and lower leveling axis in the vertical direction. 3.2 Leveling speed
The linear speed of the outer circle of the upper and lower leveling.
Types and main technical parameters of thin plate leveling machine 4
4.1 The model of thin plate leveling machine shall be implemented in accordance with the provisions of JB3836, and its model representation method is as follows: V
Approved by the State Machinery Industry Bureau on 1992-08-06 1
××××
Leveling plate width mm
Type, flat type
Type, correction type
Implemented on 1993-01-01||tt ||The structural type of the thin plate leveling machine is shown in the figure: 4.2
JB/T6460-1992
Figure Type of roller thin plate leveling machine for electrical usebzxZ.net
2——Upper support roller;
1——Lifting and adjusting device;
Upper leveling roller:
4.3 Main technical parameters of thin plate leveling machine
Lower leveling pry;
The main parameters of the thin plate leveling machine shall comply with the provisions of Table 1. Table 1
Parameter name
Number of leveling rollers
Leveling speed
Leveling roller diameter
Leveling plate thickness
Leveling capacity
New plate width
Mechanical properties of leveling plate
Leveling accuracy
5 Technical requirements
6 Coupling,
Lower support roller;
Reduction box
9, 13, 15, 17, 19, 21
350~8150
≤2050
≤245
≤460
Thin plate leveling machines shall comply with this standard and be manufactured in accordance with product drawings and design documents approved in the prescribed procedures. 5.1
The precision of transmission gears shall reach the 8th grade precision specified in GB10095. 5.2
20≤V≤40
5.3The dimensional precision of the working outer diameter of the leveling machine shall reach IT6 grade, the maximum allowable value of the surface roughness parameter Ra shall be 0.8μm, and the hardness of its working surface shall reach HRC58～62.
5.4Welded parts shall comply with the relevant provisions of JB4328.5. 5.5Iron castings shall comply with the relevant provisions of JB4328.1. 5.6Nonferrous metal castings shall comply with the relevant provisions of JB4328.3. All machined parts shall comply with the relevant provisions of JB4328.8. 5.7
5.8The assembly of products shall comply with the provisions of JB4328.8. The matching surface precision of each kinematic pair shall reach IT8 grade, and the maximum allowable value of the surface roughness parameter Ra shall be 1.6μm. 5.9
JB/T64601992
After assembly, the flatness of the plane formed by the planes of the leveling rollers is 0.06mm/m. The distance deviation between the rollers should be ±0.05mm. 5.11
5.12 Within the adjustment range of the leveling rollers, the parallelism of the upper and lower rows of leveling rollers is level 6. 5.13
After assembly, the leveling rollers and the support rollers should rotate flexibly without blocking. Adjust the upper and lower supports to make them contact with the leveling rollers, and at least 75% of the support rollers in each row of support rollers should rotate during operation. The matching of each gear pair of the main reduction gearbox should comply with the 8-level accuracy requirements in GB10095. During normal operation, the noise sound pressure level should not exceed 85dB (A). The cleanliness of the main reduction gearbox should comply with the P level specified in GB11368. 5.17
The lubricating oil pump works normally and all lubrication systems are unobstructed. 5.18
The painting of the product shall be carried out in accordance with the relevant provisions of JB4328.9, and the accuracy of the paint film shall be Class I. 5.19
6 Test method
6.1 Inspection of the flatness of the surface
Put the assembled upper and lower rollers on the platform, and use a dial indicator to measure any three points with a spacing greater than 500mm on the plane formed by the surface. The error shall be within the specified range (0.06mm/m). 6.2 Inspection of the whole machine noise
During the load test, the whole machine noise shall be detected according to the method specified in ZBJ50004. Note: The ambient background noise shall be 10dB (A) lower than the measured noise. 6.3 The cleanliness inspection of the main reducer shall be carried out in accordance with the method specified in GB11368, and its level shall reach Class P. 6.4 No-load test
6.4.1 Before the no-load test, check the lubrication of the rotating parts, the flexible rotation of the leveling roller, the contact between the leveling roller and the support, the flexible and reliable operation of the pressing mechanism, the normal oil supply of each lubrication point, the connection and operation of each coupling.
6.4.2 No-load test
6.4.2.1 Carry out fast and slow speed, forward and reverse tests respectively, and keep them running continuously for 10 minutes each. The equipment works normally. The noise is less than 85dB(A).
6.4.2.2 Raise and lower the upper leveling roller repeatedly 10 times. There should be no abnormal conditions such as blocking, jamming, creeping, etc., and check the reading of the indicator. The error of the repeated reading should not be greater than 0.2mm each time it descends. 6.4.2.3 The whole machine runs for 2 hours, check that the temperature rise of the bearings at all locations is not more than 45℃, and the highest temperature is not more than 65℃. Check that the lubrication of each lubrication point is normal. 6.5 Load test
6.5.1 Test materials
The size parameters and mechanical properties of the leveling steel plate are shown in Table 2Table 2
Mechanical properties
Clean the steel plate for the test, and no defects such as welding slag, serious rust, and local bending are allowed. ≤460
6.5.2 Leveling test
JB/T6460—1992
Use the fast leveling gear to level the 1mm thick steel plate; 8.
b. Use the slow leveling gear to level the 4mm thick steel plate. 6.5.3 Inspection
Inspect the leveled steel plate. Its flatness should not be greater than 1mm/m. The minimum accuracy of the leveling plate at each level represents the actual leveling accuracy of the equipment. a.
Inspect the rollers. At least 75% of the rollers in each row of rollers should rotate during operation. The reasons for not rotating should be found out. b.
Inspection rules
Each product must be inspected by the technical inspection department of the manufacturer and accompanied by documents proving the quality of the product. 7.2
Product inspection is divided into factory inspection and type inspection. Type test should be carried out when one of the following conditions is met. a.
When new products are trial-produced and evaluated;
When there are major process changes;
When periodic production is conducted for type testing;
When the product is resumed after a long period of suspension;
When there is a significant difference between the results of the factory inspection and the last type test: When the national quality supervision and inspection agencies at all levels put forward the requirement for type testing. The following items should be inspected for factory inspection Appearance inspection;
No-load test:
No less than one unit of each batch of products shall be sampled for noise and main reduction gearbox cleanliness inspection. Type testing shall be conducted for all inspection and test items. 8
Packaging and transportation
Product packaging shall be carried out in accordance with the relevant provisions of JB2759 and the product packaging design and its documents. The packaging storage and transportation graphic signs shall be implemented in accordance with GB191. 8.2
The random documents are as follows:
Instruction manual:
Certificate of conformity;
Packing list.
8.4 When hoisting the product, it must be hoisted according to the position of the hoisting mark on the packaging box. 8.5
When transporting and storing in the north, pay attention to rain and moisture protection. Additional instructions:
This standard is proposed and managed by the Shenyang Electrical Equipment Research Institute of the Ministry of Machinery and Electronics Industry. This standard is drafted by the Shenyang Electrical Machinery Factory. 4
People's Republic of China
Mechanical Industry Standard
Electrical Roller Sheet Leveler
JB/T64601992
Published by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
Postal Code 100044)
Number of words XXX,XXX
Format 880×1230
Sheet x/X
Edition X, XX, 19XX
Printing X, XX, 19XX
Number of prints 1-XXX
Price XXX.XX Yuan
XX-XXX
Mechanical Industry Standard Service Network: http://www.JB.ac.cn69
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