拖拉机自动变速器应用现状与技术分析  

Application Status and Technical Analysis of Automatic Transmission on Tractor

作　　者：席志强[1,2] 周志立[2] 

机构地区：[1]西安理工大学机械与精密仪器工程学院,陕西西安710048 [2]河南科技大学车辆与交通工程学院,河南洛阳471003

出　　处：《机械传动》2015年第6期187-195,共9页Journal of Mechanical Transmission

基　　金：国家自然科学基金项目(51375145);河南省重点科技攻关计划项目(102102210165);洛阳市重大科技专项(1001001A)

摘　　要：自动变速技术是拖拉机传动系控制的关键技术,也是提高拖拉机工作效率的有效途径。综述了拖拉机自动变速器在国内外的应用现状,并对目前国外大中功率拖拉机上广泛应用的动力换挡自动变速器和无级变速器的传动系统、液压系统、控制策略以及换挡换段品质控制技术等进行了深入分析。根据当前变速器换挡控制的发展趋势,对拖拉机变速器自动控制技术未来的发展研究方向进行了展望。The automatic transmission technology is the key technology of tractor transmission system con- trol, is also an effective way to improve the efficiency of the tractor working. The application status at home and abroad is summarized, and the deeply analysis of transmission system, hydraulic system, control strategy, shift quality control technology of power shift transmission and continuously variable transmission which widespread use on the foreign large and medium power tractors at present are carried out. The development and research di- rection of automatic control technique of transmission on tractor is forecasted based on the development trend of transmission gearshift control.

关 键 词：拖拉机 动力换挡变速器 无级变速器 自动变速器 

分 类 号：S219[农业科学—农业机械化工程]