摘要
针对传统星轮减速器设计方法忽略加工与装配误差影响而导致轮齿跳动干涉和传动精度下降的问题,研究提出了一种综合考虑齿形误差、装配偏差等因素的少齿差传动机构三维建模方法。采用Recur Dyn软件构建了包含±3σ误差的虚拟样机,并通过渗氮处理、预紧调整等补偿措施提升性能。实验结果显示,该模型能准确预测由于误差所导致的传动效率下降(4.1%)与接触应力的增加(15.3%),且在极限公差组合下验证了星轮轴弯曲应力为315MPa,轴承寿命为27548 h,且仍满足安全要求。此研究为高精度星轮减速器的误差分析与补偿设计提供了有效的建模工具和优化策略,为工程实践提供了有益指导。
A three-dimensional modeling method for a few tooth difference transmission mechanism that comprehensively considers factors such as tooth profile error and assembly deviation is proposed to address the problem of gear tooth runout interference and reduced transmission accuracy caused by the neglect of machining and assembly errors in traditional star wheel reducer design methods.A virtual prototype containing ±3σ error was constructed using RecurDyn software,and performance was improved through compensation measures such as nitriding treatment and pre tightening adjustment.The experimental results show that the model can accurately predict a 4.1%decrease in transmission efficiency and a 15.3% increase in contact stress caused by errors,and verify that the bending stress of the star wheel shaft is 315 MPa and the bearing life is 27548 hours under the limit tolerance combination,while still meeting safety requirements.Based on the above,the research provides effective modeling tools and optimization strategies for error analysis and compensation design of high-precision star wheel reducers,and provides useful guidance for engineering practice.
作者
刘罡
Liu Gang(Hubei Transportation Vocational and Technical College,Wuhan Hubei 430202,China)
出处
《机械管理开发》
2025年第10期187-189,共3页
Mechanical Management and Development
关键词
星轮减速器
装配误差
齿轮
三维建模
传动效率
star wheel reducer
assembly error
gear
3D modeling
transmission efficiency
