GB/T 30911-2014The performance test procedures of Rack-and pinion hydraulic power steering lips seals (English PDF)
汽车齿轮齿条式动力转向器唇形密封圈性能试验方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
July 8, 2014
Implementation date
December 1, 2014
Scope
GB/T 30911-2014 is the English-translated version of 汽车齿轮齿条式动力转向器唇形密封圈性能试验方法.
GB/T 30911-2014 is the Chinese standard "The performance test procedures of Rack-and pinion hydraulic power steering lips seals". Its scope clause reads: This standard specifies the car rack and pinion power steering lip seals (hereinafter referred to as seals) performance test methods.
High pressure reciprocating seal This standard applies to installation in the car rack and pinion power steering gear output shaft reciprocate and do Positive, low-pressure reverse swinging motion of the input shaft seal.
Its clauses include general requirements for test equipment; ring installation requirements.
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Document preview — GB/T 30911-2014
National Standard of the People's Republic of China
- ICS
- 83.140.50
- Classification
- G 43
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Introduction
- 1 Scope
- 2 Normative references
- 3 1 General requirements for test equipment
- 4 ring Installation Requirements
- 5 Performance Test
- 5.1 high pressure reciprocating seal performance test
- 5.1.1 High Temperature Sealing Test
- 5.1.2 Test 4 Low Temperature Sealing
- 5.1.3 Limit high pressure seal test
- 5.1.4 resist negative pressure test
- 5.1.5 Fatigue Test
- 5.2 Performance test low-voltage swing ring
- 5.2.1 High temperature sealing test
- 5.2.2 low temperature sealing test
- 5.2.3 Limit high pressure sealing test
- 5.2.4 Fatigue Test
- 5.2.5 friction torque test
- 5.2.6 Test mud
- Appendix A (informative) high pressure reciprocating seal performance test records Table
- Annex B (informative) swing low pressure seal performance test records Table
- Annex C (informative) low-voltage swing ring friction torque test records Table
1 Scope
This standard specifies the car rack and pinion power steering lip seals (hereinafter referred to as seals) performance test methods.
High pressure reciprocating seal This standard applies to installation in the car rack and pinion power steering gear output shaft reciprocate and do
Positive, low-pressure reverse swinging motion of the input shaft seal.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 13871.3 sealing element is a rotary shaft lip elastomeric seals - Part 3. Storage, handling and installation
GB/T 24795.1 commercial vehicle axle rotary shaft lip seals - Part 1. structure, dimensions and tolerances
Performance test method. GB/T 24795.2-2011 commercial vehicle axle Part 2 rotary shaft lip seals
3 General requirements for test equipment
3.1
to adapt to different inner and outer diameters of seals, shaft seals and cavity size can be changed, and you can easily remove and replace.
3.2
ring cavity should be consistent with the provisions of GB/T 24795.1 of.
3.3
aperture body cavity surface roughness should not exceed Ra1.6µm.
3.4
axis shall comply with GB/T 24795.1 of.
3.5
shaft surface roughness Ra0.2µm ~ Ra0.4µm, surface hardness 55HRC ~ 63HRC.
3.6
Reciprocating speed (or speed) is adjustable, the error should be controlled within ± 3% of the set value.
3.7
Test equipment should be capable of maintaining the temperature of the liquid in the test error is within ± 3 °C.
3.8
Test equipment should be able to test pressure controlled within ± 5% of the set value.
3.9
In the case of eccentric movement is not set, test equipment with respect to the body of the spindle bore concentricity should be less than 0.03mm.
3.10
Test equipment should be configured to leak liquid receiver.
3.11
Test the heating medium may be the systemic circulation heating method.
4 ring Installation Requirements
4.1
Before installation seals, seals should be checked whether the requirements of the relevant drawings or specifications, and test equipment to check compliance with Article 3
Zhang requirements.
4.2
seals should be GB/T 13871.3 of the installation.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 20 pages — is available in the English PDF.
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