JB/T 9152-1999 Sliding-vane continuously variable speed chain

This standard specifies the structural type, basic parameters, technical requirements, test methods and inspection rules of the sliding vane continuously variable transmission chain (hereinafter referred to as sliding vane chain). This standard is applicable to the sliding vane chain used in toothed chain continuously variable transmissions. JB/T 9152-1999 Sliding vane continuously variable transmission chain JB/T9152-1999 Standard download decompression password: www.bzxz.net

JB/T9152-1999
This standard is a revision of ZBJ18003--89 "Sliding Vane Continuously Variable Speed ​​Chain". Only editorial changes were made to the original standard during the revision, and the main technical content remained unchanged.
This standard replaces ZBJ18003--89 from the date of implementation. Appendix A and Appendix B of this standard are both indicative appendices. This standard was proposed and managed by the National Chain Drive Standardization Technical Committee. The drafting unit of this standard: Chain Drive Research Institute of Jilin University of Technology. The main drafters of this standard: Meng Fanzhong, Jin, Zhao Sailiang, Jin Runze, Wu Zheming. 3
1 Scope
Machinery Industry Standard of the People's Republic of China
Self-tooth-forming chains (P. I, V. Chains) JB/T9152 --1999
Replaces ZBJ18003--89
This standard specifies the structural type, basic parameters, technical requirements, test methods and inspection rules of the self-tooth-forming chain (hereinafter referred to as the self-tooth-forming chain).
This standard applies to the self-tooth-forming chain used in the toothed chain continuously variable transmission. 2 Referenced standardswwW.bzxz.Net
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest version of the following standards. GB/T9785--1988 Chain and sprocket terminology 3 Terms and codes
The relevant terms of this standard shall be in accordance with the provisions of GB/T9785. The codes used in this standard are shown in Table 1.
4 Type and size
4.1 Structural type
Lap length 1
Pin diameter d
Sliding vane angle α
Chain plate height h. Minimum tensile load
Weight per meter
The structural type of the sliding vane chain is shown in Figure 1. When the whole hanging sliding vane chain (hereinafter referred to as the whole chain) has an odd number of sections, its connection form is shown in Figure 1a); when the whole chain has an even number of sections, its connection form is shown in Figure 1b). 4.2 Models, basic parameters and main dimensions
The model, basic parameters and main dimensions of the sliding vane chain are specified in Table 1. Approved by the State Bureau of Machinery Industry on June 28, 1999 and implemented on January 1, 2000
iltany
JB/T 9152- -1999
-chain plate; 2--sliding plate sleeve; 3--pin shaft; 4--right-bend chain plate; 5--left-bend chain plate: 6--connecting pin shaft; 7--split pin; 8-washer; 9-semicircular pin; 10-sliding plate; 11-compensating plate; 12 fixing plate; 13--bushing ring (1); 14-bushing ring (2) Figure 1
4.3 Marking method
The marking method of the sliding plate chain is as follows:
Standard number
One whole chain Number of links
4.4 Marking example
Pitch 25.00mm, 26-link vane chain:
5 Technical requirements
Model, see Table 1
A, X26JB/T9152--1999
5.1 Each link of the vane chain should be flexible to rotate, and the adjacent links should be bent inward at least 90°5.2 After the whole chain is laid flat naturally, the lateral bending deviation per 500mm length is not more than 1.5mm. 5.3 In the same chain link, AAI, A: type chains can be loaded with a maximum of two compensation plates; A, As, A. type chains can be loaded with a maximum of two compensation plates. There should be at least three slides between the two compensation plates, and avoid installing compensation plates near the semicircular pins. 5.4 The total clearance between the sliding plates of each link of the whole chain: A, A., A. type is not more than 0.1mm; A,, A. type is not more than 0.2mm1360
JB/T9152-1999
5.5 The difference in the length of the sliding plates of the whole chain is not more than 0.08mm. 5.6 The difference in the hole spacing of the chain plates of the same link in the whole chain is not more than 0.03mm. 5.7 The recommended materials and recommended metallographic structures after heat treatment of each part of the sliding chain can refer to Appendix A (suggestive appendix). 5.8 The recommended heat treatment quality of each part of the sliding chain can refer to Appendix B (suggestive appendix). 6 Test methods and inspection rules
6.1 Before leaving the factory, the sliding chain must be subjected to a no-load running-in test with a transmission ratio of i=1:1. The running-in time is not less than 1h for A. A: type chain; not less than 2h for A-A. type chain. The running-in speed is AαA, type chain is 720r/min; A. type chain is 600r/min. 6.2 The same specification of the sliding chain with a batch of less than 500 produced in the same period is regarded as an inspection batch. Three hanging sliding chains are randomly selected from each inspection batch as samples for the whole chain inspection. 6.3 According to the provisions of Table 1, the minimum tensile load test is carried out on the universal material testing machine for three chain segments randomly selected from each hanging sliding chain in the whole chain inspection sample. The effective tension chain links of the inspected chain segment shall be at least 5, and the connection between the two ends and the chuck of the testing machine shall ensure that no additional stress is generated on the sliding chain parts. During the test, the load shall be continuously and slowly. If the chain link connected to the chuck is damaged, the test is invalid. 6.4 In the sample of the whole chain inspection, 20 links of the sliding chain are turned by hand, and their flexibility shall meet the requirements of 5.1. 6.5 In the sample of whole chain inspection, after each hanging sliding chain is naturally flat, use a square ruler (or other measuring instruments that meet the accuracy requirements) to lean against the outer chain plate of the sliding chain to be tested, and measure the maximum distance between the remaining outer chain plates and the square ruler within the specified measurement range. The value should comply with the provisions of 5.2.
6.6 In the sample of whole chain inspection, use a feeler gauge to measure the total gap between the sliding plates of 20 chain links, which should comply with the provisions of 5.4. 6.7 In the sample of whole chain inspection, 20 sliding plates are selected to measure their lengths, which should comply with the provisions of 5.5. 7 Marking and packaging
7.1 After the chain is cleaned and anti-corrosion treated, it is packaged inside and outside. The chain specifications in the same package must be the same, and it is equipped with connecting pins, washers, cotter pins, and a product certificate. 7.2 The outer wall of each outer packaging unit shall be marked with: a) manufacturer name; b) product name and model; c) factory number; d) quantity. JB/T9152-1999 Appendix A (suggestive appendix) Recommended materials and metallographic structures after heat treatment for each component of the slide chain The recommended materials and metallographic structures after heat treatment for each component of the slide chain are shown in Table A1 and Table A2. Table A1 Recommended materials for the parts of the sliding chain
Part name
Sliding plate sleeve
Half-round pin
Part name
(village ring, sliding plate sleeve, half-round pin)
60Si2Mn;60Mn;65Mu;45Mn2;40Cr60Si2MnA;60Si2Mn;65Mn
20Cr;20CrMnMo
10;15;20
10:15:20
20Cr; 20CrMnMo
Table A2 Recommended metallographic structures of vane chain parts after heat treatment
Annealing, tempering
Annealing, tempering
Carburizing, annealing, tempering
Carburizing, annealing, tempering
Carbonitriding, annealing, tempering
Metallographic structures
Tempered troostite + tempered troostite
Tempered troostite + a small amount of point carbides||tt ||Surface: high carbon martensite + fine carbide + retained austenite] Core: low carbon martensite + a small amount of ferrite Surface: carbonitride martensite + carbonitride + retained austenite Core: low carbon martensite + a small amount of ferrite JB/T9152
Appendix B
(Suggested Appendix)
Recommended heat treatment quality of each part of the vane chain The heat treatment hardness of each part of the recommended vane chain is shown in Table B1. B1
B2 The depth of the carburized or carbonitrided parts of the recommended vane chain is shown in Table B2. Table B1
Parts Name
Sliding Plate Sleeve
Half Round Pin
0.20~0.35
0. 30-0. 50
Hardness Value
42~50HRC
83. 6~88. 3HR15N
89. 0--91. 1HR15N
86. 0~89. 0HR15N
80.6-83.6HR15N
84. 2~-87. 8HR15N
0.08-~0.15
Submersible Plate Sleeve
Half Round Pin
0.20~~0.35
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