直廓内齿与渐开线齿轮啮合传动计算与噪声试验

提出用直线齿廓替代内齿轮的渐开线齿廓,使渗碳淬火后的内齿轮易于成形磨齿.利用齿面接触分析(TCA)和承载接触分析(LTCA)技术,研究分析直廓内齿轮与渐开线齿轮啮合的受力状态、齿间载荷分配、传动误差.通过台架试验,采集渐开线内齿轮行星减速器和直廓内齿轮行星减速器在不同转速和载荷下的噪声,进行对比分析,研究直廓内齿轮传动的动态性能.直廓内齿轮传动有"修缘"的特点,承载下的传动误差波动比空载小得多.

Transmission Error and Noise Experiment on Meshing of the Straight Profiled Internal Gear with the Involute External Gear

By substituting the straight tooth profile for the involute one, the internal gears with hard tooth face was easily grounded in form grinding. By means of the tooth contact analysis(TCA) technology and loaded tooth contact analysis(LTCA) technology, stress condition, load share between teeth, transmission error were studied, when meshing the internal gear with straight profile with involute external gear. The noise of the planetary reducers with both straight tooth profile internal gear and involute tooth profile was collected respectively by rig experiment. By analysing the collected data, the dynamic transmission performance of internal gear with straight tooth profile was studied. The internal gear with straight tooth profile has the performance of "edge trimming" and a much smaller transmission error variations under loading than no-loading, as a result, it is fully feasible to use the internal gears with straight tooth profile in industry.