双圆锥式无级变速器传动性能的试验研究  

Experimental Investigation Into the Performance of Double Conical Continuously Variable Transmission

作　　者：李雪原[1] 沈楚敬[1] 苑士华[1] 崔锦[1] 

机构地区：[1]北京理工大学车辆传动国家重点实验室,北京100081

出　　处：《机械工程学报》2013年第2期116-120,共5页Journal of Mechanical Engineering

基　　金：国家部委基础科研(A2220060029);车辆传动国家重点实验室基金(9140C340201113403)资助项目

摘　　要：采用试验研究的方法,对双圆锥式无级变速器的传动性能以及影响因素进行研究。设计并制造出双圆锥式无级变速器的试验样机,搭建传动性能测试试验平台,并进行性能试验。试验结果表明,保持传动比、输入转速和液压腔压力不变,系统的传动效率随着输入转矩的增加而增加,最终到达最大值,随后逐渐下降;保持传动比、输入转速和输入转矩不变,系统传动效率随着液压腔压力的降低而增加,但过低的液压腔压力会使系统无法高效传递动力;保持传动比、液压腔压力和输入转矩不变,系统传动效率随着转速的增加而减小;当输入转速、液压腔压力和输入转矩不变,增大系统传动比,将提高系统的传动效率。The Performance of double conical continuously variable transmission（CVT） and its effect factors are investigated by experimental method. An experimental device of the CVT is designed and manufactured, a performance test bench of the CVT is established, and the performance experiment of the CVT is carried out. The experiment results show that when the transmission ratio, input speed and the pressure of the hydraulic cavity remain constant, the efficiency of CVT increases with the increasing of the input torque, finally reach the maximum, and decrease later; when the transmission ratio, input torque and the input speed remain constant, the efficiency of CVT increases with the decreasing of the pressure of the hydraulic cavity, but the CVT cannot transmit the power effectively with too low pressure of the hydraulic cavity ; When the transmission ratio, input torque and the pressure of the hydraulic cavity remain constant, the efficiency of CVT decreases with the increasing of the input speed; When the input speed, input torque and the pressure of the hydraulic cavity remain constant, the efficiency of CVT increases with the increasing of the transmission ratio.

关 键 词：无级变速器 试验平台 效率 自旋 

分 类 号：TH132[机械工程—机械制造及自动化]