总结了齿轨的型式及其适用范围,建立了147 mm五节距齿轨的三维模型,分析了其受力情况,并进行了强度分析。根据分析结构,提出了齿轨及定位方式的改进方案,再次进行强度分析,结果显示,齿轨受力分布得到改善,满足使用要求。 The type of rack and its application range are summarized. A three - dimensional model of 147 mm five - pitch rack is established. The force situation is analyzed and the strength is analyzed. According to the analysis structure, an improved scheme of the rack and the positioning method is put forward, and the strength analysis is conducted again. The results show that the stress distribution of the rack is improved and the requirements of the application are met.