最佳鼓形量的设计计算与仿真验证

Design and Simulation of Optimal Drum-shaped Size

齿轮因受载变形造成齿向方向载荷不均,故需在齿向方向进行鼓形修形以补偿变形.本文提出了一种鼓形量的计算方法,以一对啮合齿轮副为例进行理论验证,通过UG软件建立了鼓形齿轮副的参数化三维模型,利用ANSYS静力学分析模拟了齿轮的受力状态.通过理论分析和仿真运算,获得了齿向修形最佳鼓形量结果,即获得了有效减少齿轮载荷应力集中和解决齿轮偏载情况下受力不均问题的方法.

The asymmetric load along the direction of gear tooth always occurs when the gear is deformed due to loading. Thus,the drum compensation along the direction of gear tooth is needed to accommodate the deformation.A calculation method of drum shaped size is presented in this paper and a pair of meshing gear pair is used as an example to verify the theory. The parameterized three-dimensional model of the drum shaped gear is established by UG software and the loading conditions are analyzed by using ANSYS. The optimum drum shape is obtained through theoretical analysis and simulation. The method of reducing the stress concentration of gear load and solving the problem of uneven force of gear under eccentric load is proved to be efficient.