主办：陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊：1976年
汽车实用技术

汽车实用技术 ›› 2026, Vol. 51 ›› Issue (6): 77-82.DOI: 10.16638/j.cnki.1671-7988.2026.006.014

• 测试试验 • 上一篇    

基于四电机台架半轴球笼破损和差速器 烧结问题研究与改善

沈乐 1，邹常超 1，王涛 1，李俊 2，曾祥新 1   

  1. 1.武汉达安科技有限公司 新技术研究室； 2.襄阳达安汽车检测中心有限公司 产品服务中心
  • 发布日期:2026-03-24
  • 通讯作者: 沈乐
  • 作者简介:沈乐（1987－），男，硕士，工程师，研究方向为新能源电驱总成试验

Research and Improvement on the Damage of the Ball Cage of the Four-Motor Test Bench Half Shaft and the Burnt-Out Problem of the Differential

SHEN Le1 , ZOU Changchao1 , WANG Tao1 , LI Jun2 , ZENG Xiangxin1   

  1. 1.New Technology Research Laboratory, Wuhan Da'an Technology Company Limited; 2.Product Service Center, Xiangyang Da'an Automobile Test Center Company Limited
  • Published:2026-03-24
  • Contact: SHEN Le

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摘要： 针对四电机台架进行机械部件耐久试验时出现的左半轴内球笼破损与差速器烧结问题。 文章通过分析四电机台架原理及试验难点问题，定位问题核心原因为样机与台架匹配布局导 致的左半轴偏转角度过大。为此，提出了改制左半轴结构、优化安装方式及实时监测左半轴 振动的措施，并进行试验验证。结果表明，改进后左半轴振动加速度值较改进前明显降低， 试验后样机拆解结果也验证了该改进方案的有效性和可行性，为四电机台架耐久试验提供了 工程参考。

关键词: 四电机台架；半轴偏转角度；球笼破损；差速器烧结

Abstract: To address the left half shaft cage damage and differential sintering issues during durability testing of a four-motor test bench, this paper analyzes the test bench's operational principles and key challenges. The root cause is identified as excessive left half shaft deflection due to mismatched layout between the prototype and test bench. Solutions include structural modifications to the left half shaft, optimized installation methods, and real-time vibration monitoring. Experimental results demonstrate significant reduction in vibration acceleration after modifications. Post-test disassembly confirmed the effectiveness of these improvements, providing valuable engineering references for durability testing of four-motor test bench.

Key words: four-motor test bench; half shaft deflection angle; ball cage damage; differential sintering