湿式换挡离合器摩擦片磨损规律研究

Wearing of Wet Shifting Clutch Friction Discs

研究湿式换挡离合器摩擦片工作过程的磨损量变化规律.基于离合器油压和转速特性,利用数值拟合的方法建立了摩擦片单次工作磨损量计算模型,通过对离合器摩擦片磨损试验过程的油液进行光谱分析,确定了磨损工况系数,并利用模型讨论了油压和转速对磨损量的影响.通过18000次综合传动换挡试验,得到了离合器磨损量与换挡次数的函数关系.经验证,湿式换挡离合器内齿摩擦片磨损量可以表示为离合器工作油压、滑摩转速和换挡次数的函数.

To investigate the wearing of friction discs, the working principle of wet shifting clutches is studied. The oil pressure and rotation speed characteristics of wet shift clutches are studied. Mathematical model for calculating the wear of friction disc is set up by numerical fitting, and the wear condition coefficient confirmed based on spectral analysis of experimental result, the relationship between friction disc wear and elements such as oil pressure and rotating speed described. After 18000 times of clutch shifting experiments, the functional relation between wear and shifting time is attained. It was proved that the wear of wet shifting clutch can be expressed through oil pressure, rotation speed and times of shifting.