动力换挡自动变速器在拖拉机上的应用技术分析  

Application Analysis of Automatic Powershift Transmission on Tractor

作　　者：席志强[1,2] 周志立[2] 张明柱[3] 徐立友[2] 

机构地区：[1]西安理工大学机械与精密仪器工程学院,西安710048 [2]河南科技大学车辆与动力工程学院,河南洛阳471003 [3]河南科技大学机电工程学院,河南洛阳471003

出　　处：《机械设计与研究》2014年第2期140-143,共4页Machine Design And Research

基　　金：国家自然科学基金资助项目(51375145);河南省重点科技攻关计划资助项目(102102210165)

摘　　要：动力换挡变速器具有换挡进程中动力输出不中断的优点,在拖拉机和工程机械上得到广泛应用。分析了拖拉机动力换挡自动变速器工作原理,对其在国内外的应用进行了综述。并根据当前变速器换挡控制技术的发展趋势,研究了动力换挡自动变速器传动系统、电液技术、换挡规律以及所采用的换挡控制策略。本文的研究可为动力换挡变速器在农业机械上的应用提供理论参考。Due to the output power is uninterrupted in the process of gear shift, powershift transmission was widely used on tractor and construction machinery. Firstly, the operating principle of automatic powershift transmission on tractor is present. Then, the technique development of powershift transmission and its application on tractor at home and abroad is summarized. At the same time, the drive system, electrohydraulic technique, gear shift rules and gear shift control strategy of powershift transmission are studied according to the current development trend of gear shift control technique. Research results of this paper can provide a theoretical reference for the application of powershift transmission on agricultural machinery.

关 键 词：拖拉机 动力换挡 自动变速器 控制策略 

分 类 号：S232.3[农业科学—农业机械化工程] S24[农业科学—农业工程]