直线共轭内啮合齿轮泵齿圈强度分析

Stress Analysis of Tooth for Straight Conjugate Internal Gear Pump

对直线共轭内啮合齿轮泵齿圈强度进行了研究,分析了工作状态的几何约束,计算了啮合力和内外侧的径向油压分布,使用有限元分析软件ANSYS得到的结果显示,作用在齿圈内侧的高压油对齿圈的弯曲作用会在齿根部产生较大的应力,这是导致齿圈失效的重要原因。

Tooth stress for straight conjugate internal gear pump was analyzed, including specifying constrains, meshing force and radial pressure distributions, By using ANSYS, it is found that the bend stress to the innergear produced by high pressure oil resuits in stress concentration. This is an important cause of fatigue.