单驱动多点啮合齿轮齿条传动轮齿干涉问题研究  

RESEARCH ON GEAR TOOTH INTERFERENCE PROBLEM OF SINGLE DRIVE MULTI-POINT MESHING RACK AND PINION TRANSMISSION

作　　者：王宇佳 陈东[1] 吴佳林 武广涛 宋华[1] WANG YuJia;CHEN Dong;WU JiaLin;WU GuangTao;SONG Hua(School of Mechanical Engineering&Automation,University of Science and Technology Liaoning,Anshan 114051,China)

机构地区：[1]辽宁科技大学机械工程与自动化学院,鞍山114051

出　　处：《机械强度》2024年第6期1495-1500,共6页Journal of Mechanical Strength

基　　金：国家自然科学基金项目(51374127);辽宁省教育厅科学研究项目(2020LNZD03)资助。

摘　　要：齿轮齿条机构的承载能力受齿面接触强度制约,为提高其承载能力采用多对齿轮与单根齿条啮合,为简化传动系统结构,提出了单驱动多点啮合齿轮齿条传动机构,该机构具有承载能力强、体积小、质量轻、成本低等特点。但该机构存在轮齿干涉问题,为解决该问题进行了轮齿干涉量研究,并基于轮齿变位可改变中心距的特性,采用变位系数补偿法解决轮齿干涉问题。对变位后的齿轮齿条机构进行了轮齿受力分析,结果表明,轮齿无干涉,且受力均匀。轮齿干涉问题的解决,极大地提高了齿轮齿条传动的承载能力,使得齿轮齿条传动可以用于重载工况。The load capacity of the rack and pinion mechanism is limited by the contact strength of the gear tooth surface.In order to improve its load capacity,multiple pairs of gears and single rack meshing were adopted.In order to simplify the structure of the transmission system,a single drive multi-point meshing gear rack and pinion transmission mechanism was proposed,which has the characteristics of strong load capacity,small size,light mass and low cost.However,the mechanism has the gear tooth interference problem,and the gear tooth interference amount was studied to solve the problem,and based on the characteristics that the center distance can be changed by gear tooth displacement,the gear tooth interference problem was solved by the modification coefficient compensation method.The rack and pinion mechanism after modification was analyzed by the gear tooth force.The results show that the gear teeth have no interference and the force is uniform.The solution of the gear tooth interference problem greatly improves the load capacity of rack and pinion transmission,so that rack and pinion transmission can be used for heavy-duty conditions.

关 键 词：齿轮齿条传动 轮齿干涉 齿轮变位 有限元仿真 

分 类 号：TH162.1[机械工程—机械制造及自动化] TB486.3[一般工业技术—包装工程]