GB/T 38965-2020Disc coupling—Test requirement (English PDF)
膜片联轴器 试验要求
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
July 21, 2020
Implementation date
February 1, 2021
Scope
GB/T 38965-2020 is the English-translated version of 膜片联轴器 试验要求.
GB/T 38965-2020 is the Chinese standard "Disc coupling—Test requirement". Its scope clause reads: This standard specifies the test methods, test specifications, test reports, etc. of diaphragm couplings (hereinafter referred to as couplings).
This standard applies to couplings whose allowable speed is 0r/min~10700r/min. Its clauses include terms and definitions; test method.
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Document preview — GB/T 38965-2020
National Standard of the People's Republic of China
- ICS
- 21.120.20
- Classification
- J 19
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope1
- 2 Terms and definitions1
- 3 Test method1
- 4 Test specification3
- 5 Test report3
- Appendix A (informative appendix) Coupling test equipment and operating specifications related instructions5
1 Scope
This standard specifies the test methods, test specifications, test reports, etc. of diaphragm couplings (hereinafter referred to as couplings).
This standard applies to couplings whose allowable speed is 0r/min~10700r/min.
2 Terms and definitions
The following terms and definitions apply to this document.
2.1 Idlingtest
When the coupling is not applied with torque and within the allowable speed range, the coupling at a certain inclination angle rotates in both directions to vibrate.
Tests of all or part of items such as motion and noise.
2.2 Static test
When the coupling is at a standstill, torques in both positive and negative directions are applied to the coupling to test the torque and stiffness of the coupling.
Part or part of the index.
2.3 Dynamic performance test
Coupling in the rated torque, allowable speed range of efficiency, vibration, noise, torque, etc. all or part of the measurement test.
2.4 Fatigue life test
The coupling is operated at a certain inclination angle and within the range of rated torque and allowable speed for a certain number of cycles or time to test
An indicator of the life or durability of parts.
2.5 Overload test
Within the allowable inclination range of the coupling, apply a torque that exceeds a certain percentage of the rated torque to the coupling, and conduct a short-term operation test or
Continue to apply torque until the failure of some parts of the coupling to verify its safety.
3 Test method
3.1
The coupling test types are as follows.
a) Idling test;
b) Static test;
c) Dynamic performance test;
d) Fatigue life test;
e) Overload test.
3.2
The test items of each test type are shown in Table 1.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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