GB/T 13061-2017 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 13061-2017 | English | 145 |
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Technical specification of air spring used for air suspension of commercial vehicle
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| GB/T 13061-1991 | English | 239 |
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Air spring for automotive suspension. Rubber bellows
| Obsolete |
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GB/T 13061-2017: Technical specification of air spring used for air suspension of commercial vehicle
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT13061-2017
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.080
T 22
Replacing GB/T 13061-1991
Technical specification of air spring used for air
suspension of commercial vehicle
Issued on. OCTOBER 14, 2017
Implemented on. MAY 01, 2018
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of PRC;
Standardization Administration of PRC.
Table of Contents
Foreword... 3
1 Scope... 5
2 Normative references... 5
3 Terms and definitions... 6
4 Technical requirements... 8
5 Test methods... 9
Appendix A (Informative) Physical-mechanical performance requirements and
test methods of rubber compounds of bellows... 13
Appendix B (Normative) Legend of typical elastic-properties of air springs... 15
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 13061-1991 “Air spring for automotive suspension
- Rubber bellows”.
As compared with GB/T 13061-1991, the main changes of this standard are as
follows.
- MODIFY the standard name from the original “Air spring for automotive
suspension - Rubber bellows” to “Technical specification of air spring used
for air suspension of commercial vehicle”;
- MODIFY the scope from the original “automotive suspension” to “air
suspension for commercial vehicle”;
- MODIFY the terms and definitions (see clause 3 of the 1991 version);
- MODIFY the technical requirements for the physical-mechanical properties
of the materials of air spring bellows, the appearance quality of the air
spring, the internal destructive pressure, the fatigue life of the frame of air
spring (see 5.1, 5.2, 5.5, 5.7 of the 1991 version);
- MODIFY the test items, test conditions, test methods (see 6.1, 6.3, 6.5 of
the 1991 version);
- MODIFY the airtightness test (see 6.5.3 of the 1991 version);
- MODIFY the 24-h pressure drop of the air spring (see 5.4 of the 1991
version);
- ADD the definitions of air spring height, design height, maximum internal
pressure, effective diameter, air spring volume (see 3.1, 3.3, 3.5, 3.8, 3.12);
- ADD the compressive permanent deformation test, low-temperature
resistance test, hot-air aging test, ozone aging resistance test in the test of
physical-mechanical performance of the rubber compound of bellows (see
A.3.3.2, A.3.3.5, A.3.3.6, A.3.3.7);
- ADD the ambient temperature for the use of air spring (see 4.1.1);
- ADD the dynamic elastic performance tests and volume tests (see 5.5.3.1
and 5.5.4);
- DELETE the product classifications (see clause 4 of the 1991 version);
- DELETE the interlayer adhesion strength between the cord fabrics of
bellows (see 5.6 of the 1991 version);
- DELETE the telescopic test and the peel test (see clause 6.5.2, 6.5.6 of the
1991 version);
- DELETE the inspection rules (see clause 7 of the 1991 version);
- DELETE the marking, packaging, transportation, storage (see clause 8 of
the 1991 version).
This standard was proposed by the Ministry of Industry and Information
Technology.
This standard shall be under the jurisdiction of the National Automotive
Standardization Technical Committee (SAC/TC 114).
Drafting organizations of this standard. Dongfeng Motor Corporation, Zhuzhou
Times New Materials Technology Co., Ltd., Shandong Meichen Technology Co.,
Ltd., Shanghai Keman Vehicle Parts System Co., Ltd., Guizhou Gaoma Fuguo
Advance Rubber Co., Ltd., Xiamen Jinlong United Automobile Industry Co., Ltd.,
Zhengzhou Nissan Automobile Co., Ltd.
The main drafters of this standard. Feng Mei, Chen Yaoming, Ye Aifeng, Yu
Boying, Zhang Shangjiao, Wang Jin, Liu Jin, Cheng Haitao, Wang Sheng, Qiu
Jianjun, Zhang Guangshi, He Yunjiang, Yuan Zhaohui, Pan Xueyu, Cui Jining,
Zhang Liancang, Wang Lianping, Yang Guoku, Gao Jia.
This standard replaces the standard previously issued as follows.
- GB/T 13061-1991.
Technical specification of air spring used for air
suspension of commercial vehicle
1 Scope
This standard specifies the technical requirements and test methods for air
spring products for the air suspensions of commercial vehicles.
This standard applies to the air suspensions of commercial vehicles. The air
springs for other non-air suspension, non-commercial vehicles or non-vehicle
may make reference to this standard.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this standard.
GB/T 528 Rubber, vulcanized or thermoplastic - Determination of tensile
stress-strain properties
GB/T 531.1 Rubber vulcanized or thermoplastic - Determination of
indentation hardness - Part 1.Durometer method (Shore hardness)
GB/T 1682 Rubber, vulcanized - Determination of low-temperature
brittleness - Single test piece method
GB/T 2941 Rubber - General procedures for preparing and conditioning test
pieces for physical test methods
GB/T 3512 Rubber, vulcanized or thermoplastic - Accelerated ageing and
heat resistance tests
GB/T 7759 Rubber, vulcanized or thermoplastic - Determination of
compression set at ambient elevated or low temperatures
3 Terms and definitions
The terms and definitions as defined in GB/T 34591 as well as the following
terms and definitions apply to this document.
3.1
Air spring height
The distance between the upper and lower support planes for installation of
the air spring.
3.2
Standard height
A reference height of the air spring, which is used as the start point for the
calculation of deformation.
3.3
Design height
The installation height of the air spring at the design location of vehicle is
referred to as the design height Hd.
3.4
Standard pressure
The static pressure at which the air spring is subjected to the rated load at a
standard height.
3.5
Maximum pressure pmax
The static pressure at which the air spring is allowed to be subjected to the
maximum load at standard height.
3.6
Standard status
The working status of the air spring at standard height and standard pressure.
4 Technical requirements
4.1 Technical requirements for air spring assembly
4.1.1 The general use temperature of the air spring is -30 °C ~ 57 °C. For the
air springs which have special use requirements (such as beyond this
temperature range, oil resistance, etc.), it is determined by the supplier and the
user through negotiation; and it is permanently identified on the air spring.
4.2 Technical requirements for each component of air spring
4.2.1 The physical-mechanical properties of the rubber compound of air
spring’s bellow may be found in Appendix A.
4.2.2 The appearance quality of each component of the air spring shall meet
the following requirements.
5 Test methods
5.1 Test items
The rubber compound for bellow shall be subjected to physical-mechanical
property test. The air spring is subjected to airtightness test, elastic-property
test, volume test, destructive, frame fatigue test.
5.2 Test sample
5.3 Test conditions
The ambient temperature of the test of finished product of air spring assembly
shall be controlled at (23 ± 5) °C.
5.4 Test equipment
5.4.1 The air spring’s elastic-property test is carried out on an electro-hydraulic
servo or mechanical test machine which can perform approximate harmonic
motion. Record the load-deformation and pressure-deformation
correspondence.
5.5 Test procedure
5.5.1 Physical-mechanical property test of rubber compound
The physical-mechanical properties of the rubber compound used to make the
bellow are as shown in Appendix A.
5.5.2 Airtightness test
Adjust the air spring to the standard height. Inflate to 1.3 times the standard
pressure. Hold for 30 s. After it stabilizes, reduce the pressure of the air spring
to the standard pressure. Close the inflation and exhaust valves. Record the
pressure value. Maintain it at stationary status. After 24 hours, measure the
pressure drop. If it is not more than 0.05 MPa, it is qualified.
5.5.3 Test of elastic-properties
5.5.4 Volume test
First use water to fill the air spring, to discharge the air from inside of the air
spring. Then adjust the air spring to the maximum stretching status and ensure
the water pressure is at 0.50 MPa.
5.5.6 Test of frame’s fatigue life
Adjust the air spring to the standard height and 0.70 MPa air pressure.
Disconnect the air source. It is recommended to use a single-swing arm which
has an arm length of 600 mm or a symmetric two-way swing arm. The hinge
point is located at ±30 mm on the air spring’s installation surface. At the
frequency of 2.0 Hz ~ 3.0 Hz and the amplitude of ±50 mm, repeat vibrations.
During the test, according to the actual test conditions, it may use the cooling
method.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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