某厂夹送辊从1978年投产以来,其万向接轴花键接处经常损坏,特别是空载试车时,就出现大塑性变形。本文根据夹送辊的工作特点,从万向接轴损坏的规律着手,以参考文献所提理论和试验为依据、定性地分析了万向接轴花键接处损坏的原因,并从设计制造等方供的面提出了一些改进措施。 A factory pinch roller put into operation since 1978, the universal spline splicing at the junction is often damaged, especially when no-load test, there is a large plastic deformation. According to the working characteristics of the pinch roller and the damage of the universal joint shaft, this paper qualitatively analyzes the reason of the damage of the universal joint shaft spline connection based on the theory and experiment mentioned in the references, and from the design and manufacture Other side for the proposed some improvement measures.