FAILURE ANALYSIS OF A DIFFERENTIAL GEAR PINION FOR WHEEL LOADERS

被引：0
|
作者：
Croccolo, Dario [1 ]
De Agostinis, Massimiliano [1 ]
Fini, Stefano [1 ]
Olmi, Giorgio [1 ]
机构：
[1] Univ Bologna, DIN Dept Ind Engn, Viale Risorgimento 2, I-40136 Bologna, Italy
来源：
IRF2016: 5TH INTERNATIONAL CONFERENCE INTEGRITY-RELIABILITY-FAILURE | 2016年
关键词：
Pinion shaft; differential gear; failure; ring nut; preloaded bearing;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The present paper deals with the failure analysis of a pinion shaft belonging to a differential gear for offroad machinery applications, namely wheel loaders. The motivations of the study arise from some in-field failures, which resulted in the fracture of the pinion shaft, originated at an external groove located at the end of its threaded portion. The issue has been tackled by means of analytical, numerical and experimental tools. The observed failures have been demonstrated to be due to the in-service loosening of a ring nut, whose function is to preload the tapered rolling bearings, which support the shaft.
引用
收藏
页码：1149 / 1160
页数：12
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