RV减速器摆线轮齿廓修形对温度的影响

为分析摆线轮啮合过程中的温度特性，研究不同修形方式对摆线轮温度的影响规律，考虑摆线齿轮常用的3种组合修形方式，以相同的径向间隙为前提，对比分析摆线轮修形前后的接触应力与摩擦热量在轮齿上的分布情况。利用有限元分析，计算出修形前后温度场中的温度分布情况。结果表明：对摆线齿轮进行齿廓修形可以有效降低齿轮的稳态温度，组合修形中降温效果最佳的修形方式为正等距+正移距修形；单齿上温度梯度的密集程度随着啮合范围的减小而增大；摆线轮修形前后瞬时摩擦热量的最大值不受影响，峰值所处的位置会发生变化，而周期摩擦热量的峰值位于轮齿的同一啮合相位角上，但数值会随着轮齿受到的压力的增大而增大。

Influence of Cycloidal Gear Tooth Profile Modification of RV Reducer on Temperature

In order to analyze the temperature characteristics in the meshing process of the cycloidal gear and study the influence of different modification methods on the cycloidal gear temperature,the distributions of contact stress and friction heat on the gear teeth before and after the cycloidal gear modification were compared and analyzed on the premise of the same radial clearance,considering the three commonly used combination modification methods of the cycloidal gear.Using finite element analysis,the temperature distributions in the temperature field before and after modification were calculated.The results show that the steady state temperature of the cycloidal gear can be effectively reduced by profile modification;in combination modifications,the optimal modification mode with the best cooling effect is positive isometric+positive displacement correction;the density of temperature gradient on single tooth increases with the decrease of meshing range;the maximum values of the instantaneous friction heat before and after the cycloidal gear modification are not affected,and the location of the peak value will change,while the peak value of the periodic friction heat is located at the same meshing phase angle of the gear teeth,but the value will increase with the increase of the pressure on the gear teeth.