Fatigue Test and Fatigue Reliability Evaluation of Wheel Loader Drive Axle

doi:10.3969/j.issn.1000-565X.2018.07.016

Journal of South China University of Technology (Natural Science Edition) ›› 2018, Vol. 46 ›› Issue (7): 116-122.doi: 10.3969/j.issn.1000-565X.2018.07.016

• Mechanical Engineering • Previous Articles Next Articles

Fatigue Test and Fatigue Reliability Evaluation of Wheel Loader Drive Axle

LIANG Jia¹ SONG Xuding¹ Lü Pengmin¹ WEI Yongxiang² Lü Chang²

1． Key Laboratory of Ｒoad Construction Technology and Equipment of the Ministry of Education，Chang'an University，Xi'an 710064， Shaanxi，China; 2． Engineering Machinery Ｒesearch Institute of Xuzhou Construction Machinery Group，Xuzhou 221004，Jiangsu，China

Received:2017-11-01 Revised:2018-04-20 Online:2018-07-25 Published:2018-06-01
Contact: 宋绪丁( 1963-) ，男，教授，博士生导师，主要从事机械结构抗疲劳设计研究． E-mail:songxd@chd.edu.cn
About author:梁佳( 1984-) ，男，博士生，工程师，主要从事机械结构动态载荷测试与强度研究
Supported by:
Supported by the National Key Technology Ｒesearch and Development Program of the Ministry of Science and Technology ( 2015BAF07B02)

Abstract

Abstract: : In order to design anti-fatigue and evaluate fatigue reliability of the wheel loading drive axle，the actual load torque spectrum and rotational speed statistics of the input axle of the ZL50G wheel loader drive axle have been obtained． Loading spectrum of intensified fatigue test，positive and reverse loading fatigue test and fatigue reliability evaluation of the wheel loading drive axle have been carried out． The results show that the fatigue failure of the driving axle occurs mainly in the spiral bevel gear of the main reducer，bending fatigue failure is the main form of spiral bevel gear and contact fatigue failure is the main form of wheel planetary gear． Under the condition of given working life，the relationship curve between the working time and reliability of the drive axle is obtained on the basis of very small sample fatigue reliability evaluation of the fatigue life test results．

Key words: wheel loading drive, axle, load torque spectrum, fatigue test, fatigue failure, reliability

CLC Number:

TH243.1

LIANG Jia SONG Xuding Lü Pengmin WEI Yongxiang Lü Chang. Fatigue Test and Fatigue Reliability Evaluation of Wheel Loader Drive Axle[J]. Journal of South China University of Technology (Natural Science Edition), 2018, 46(7): 116-122.

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Fatigue Test and Fatigue Reliability Evaluation of Wheel Loader Drive Axle

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