面齿轮磨削温度建模仿真与分析

根据椭圆接触理论,得出碟形砂轮磨削面齿轮时的基本磨削参数,并建立了有限元模型,采用矩形分布热源对面齿轮磨削热进行模拟,得出其磨削温度场。由该模拟结果得出碟形砂轮磨削时的温度变化规律为:沿齿长方向近心端和沿齿高方向相对接近齿根区域时,面齿轮的磨削温度逐渐升高。同时,利用红外测温仪对实际机齿轮磨削温度进行测量,将所得结果与有限元分析结果进行对比,发现各磨削点的误差分析结果均在5%~20%,并且温度越高,误差越小,从而验证了椭圆接触理论在面齿轮磨削热研究中的可行性。

Modeling and Analysis of Face-Gear Grinding Temperature

According to the elliptical contact theory , obtained disc wheel basic grinding parameters of gear grinding surface and established finite element model, and using the rectangular distribution of heat for the gear grinding thermal simulation, obtained the grinding temperature field. The results showed that the temperature variation law of the saucer wheel grinding is : along the direction of tooth proximal near heart and along the direction of tooth height relatively close to the root area, the grinding temperature gradually increased. Meanwhile using infrared thermometer to measure actual grinding temperature, compared the measured temperatures with the finite elemental analysis results, found that the error analysis results of all the grinding points were between 20% and 5%, and the higher the temperature, the smaller the error was, verified the feasibility of the ellipse contact theory in the surface gear grinding thermal research.