GB/T 20736-2006 English PDF (GB/T20736-2006)

GB/T 20736-2006: Fatigue test method for transmission precision roller chain
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GB/T 20736-2006
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 21.220.30
J 18
GB/T 20736-2006 / ISO 15654.2004
Fatigue test method for transmission precision roller chain
(ISO 15654.2004, IDT)
ISSUED ON. DECEMBER 25, 2006
IMPLEMENTED ON. MAY 01, 2007
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Terms and definitions... 4
4 Test principle... 5
5 Test apparatus... 6
6 Test specimens... 7
7 Test procedure... 7
8 Staircase test data analysis... 10
9 Report of test results... 12
Annex A (informative) Survival test with abridged Probit analysis... 14
Annex B (informative) Combined test method (CTM)... 18
Annex C (informative) Justification for adding one step to fatigue limit in staircase
analysis... 25
Annex D (informative) Adding an additional “phantom” point at the end of staircase
test... 28
Annex E (informative) Reporting fatigue test results... 29
Annex F (informative) Establishing chain application fatigue ratings... 35
Annex G (informative) Extrapolating fatigue strength from 3×106 cycles to 107 cycles
... 42
Annex H (informative) Finite life testing and data analysis... 48
Bibliography... 55
Foreword
This Standard is identical to the international standard ISO 15654.2004, Fatigue test
method for transmission precision roller chains (English version).
Annex A ~ Annex H of this Standard are informative annexes.
This Standard was proposed by China Machinery Industry Federation.
This Standard shall be under the jurisdiction of National Technical Committee 164 on
Chain Drives of Standardization Administration of China (SAC/TC 164).
Organization responsible for the drafting of this Standard. Jilin University (former Jilin
University of Technology).
Organizations participating in the drafting of this Standard. Hangzhou Donghua Chain
Group Co., Ltd., Jiangsu Shuangling Chain Transmission Co., Ltd., Hangzhou Xilin
Chain Manufacturing Co., Ltd., Zhejiang Hengjiu Machinery Group Co., Ltd., KMC
Chain (Shenzhen) Co., Ltd., Qingdao Zhenghe Industrial Co., Ltd.
Main drafters of this Standard. Meng Xiangbin, Ye Bin, Cao Sujian, Ma Jinhua, Shou
Feng, Chen Xinqiang, Jin Yumo.
Participating drafters of this Standard. Wang Hai’ou, Xu Meizhen, Tan Guangcheng,
Wang Zhijun, Meng Danhong, He Mingzong, Fu Zhenming, Wang Ying.
Fatigue test method for transmission precision roller chain
1 Scope
This Standard specifies an axial force fatigue test method for transmission roller chains,
the tests being of the fluctuating tension type, carried out at room temperature in air,
with the force applied along the longitudinal axis of the chain. It also specifies
procedures for statistically analyzing the test results and gives formats and elements for
presenting the results of fatigue tests and analyses.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, all subsequent amendments (not including errata
content) or revisions do not apply to this standard. However, parties to agreements that
are based on this Standard are encouraged to study whether the latest versions of these
documents can be used. For undated references, the latest edition applies to this
Standard.
GB/T 1243-2006, Short-pitch transmission precision roller and bush chains,
attachments and associated chain sprockets (ISO 606.2004, IDT)
GB/T 14212-2003, Motor cycle chains - Characteristics and test methods (ISO
10190.1992, IDT)
3 Terms and definitions
Symbols, terms, definitions and units are given in Table 1 and Figure 1.
GB/T 20736-2006
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 21.220.30
J 18
GB/T 20736-2006 / ISO 15654.2004
Fatigue test method for transmission precision roller chain
(ISO 15654.2004, IDT)
ISSUED ON. DECEMBER 25, 2006
IMPLEMENTED ON. MAY 01, 2007
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative references... 4
3 Terms and definitions... 4
4 Test principle... 5
5 Test apparatus... 6
6 Test specimens... 7
7 Test procedure... 7
8 Staircase test data analysis... 10
9 Report of test results... 12
Annex A (informative) Survival test with abridged Probit analysis... 14
Annex B (informative) Combined test method (CTM)... 18
Annex C (informative) Justification for adding one step to fatigue limit in staircase
analysis... 25
Annex D (informative) Adding an additional “phantom” point at the end of staircase
test... 28
Annex E (informative) Reporting fatigue test results... 29
Annex F (informative) Establishing chain application fatigue ratings... 35
Annex G (informative) Extrapolating fatigue strength from 3×106 cycles to 107 cycles
... 42
Annex H (informative) Finite life testing and data analysis... 48
Bibliography... 55
Foreword
This Standard is identical to the international standard ISO 15654.2004, Fatigue test
method for transmission precision roller chains (English version).
Annex A ~ Annex H of this Standard are informative annexes.
This Standard was proposed by China Machinery Industry Federation.
This Standard shall be under the jurisdiction of National Technical Committee 164 on
Chain Drives of Standardization Administration of China (SAC/TC 164).
Organization responsible for the drafting of this Standard. Jilin University (former Jilin
University of Technology).
Organizations participating in the drafting of this Standard. Hangzhou Donghua Chain
Group Co., Ltd., Jiangsu Shuangling Chain Transmission Co., Ltd., Hangzhou Xilin
Chain Manufacturing Co., Ltd., Zhejiang Hengjiu Machinery Group Co., Ltd., KMC
Chain (Shenzhen) Co., Ltd., Qingdao Zhenghe Industrial Co., Ltd.
Main drafters of this Standard. Meng Xiangbin, Ye Bin, Cao Sujian, Ma Jinhua, Shou
Feng, Chen Xinqiang, Jin Yumo.
Participating drafters of this Standard. Wang Hai’ou, Xu Meizhen, Tan Guangcheng,
Wang Zhijun, Meng Danhong, He Mingzong, Fu Zhenming, Wang Ying.
Fatigue test method for transmission precision roller chain
1 Scope
This Standard specifies an axial force fatigue test method for transmission roller chains,
the tests being of the fluctuating tension type, carried out at room temperature in air,
with the force applied along the longitudinal axis of the chain. It also specifies
procedures for statistically analyzing the test results and gives formats and elements for
presenting the results of fatigue tests and analyses.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, all subsequent amendments (not including errata
content) or revisions do not apply to this standard. However, parties to agreements that
are based on this Standard are encouraged to study whether the latest versions of these
documents can be used. For undated references, the latest edition applies to this
Standard.
GB/T 1243-2006, Short-pitch transmission precision roller and bush chains,
attachments and associated chain sprockets (ISO 606.2004, IDT)
GB/T 14212-2003, Motor cycle chains - Characteristics and test methods (ISO
10190.1992, IDT)
3 Terms and definitions
Symbols, terms, definitions and units are given in Table 1 and Figure 1.