拖拉机DCT换档执行机构设计  

Design on shift actuator of DCT for tractor

作　　者：徐立友[1] 王心彬 曹青梅[1] 刘孟楠[1] 

机构地区：[1]河南科技大学车辆与交通工程学院,河南洛阳471000

出　　处：《中国农机化学报》2016年第5期146-149,163,共5页Journal of Chinese Agricultural Mechanization

基　　金：国家自然科学基金资助项目(102102210165);河南省科技攻关计划基金项目(142102210424);河南省重点产学研合作项目(132107000052)

摘　　要：针对传统拖拉机变速器换档中断的问题,提出拖拉机双离合器自动变速器(DCT)换档执行机构设计方案。以东方红1804为对象,在阐述拖拉机DCT换档原理的基础上,对换档过程进行动力学分析并建立数学模型,依据液压驱动换档执行机构的设计要求设计拖拉机DCT换档执行机构;基于MATLAB/Simulink建立仿真模型,对换档过程进行仿真分析。结果表明各档位切换时,一次挂档时间皆小于0.4s,符合设计要求。为拖拉机DCT的设计开发提供了一定的理论基础。Aiming at the problem of traditional tractor transmission shift interrupt,the shift actuator design of tractor dual clutch automatic transmission（DCT）is proposed.In the paper,taking Dongfanghong 1804 as the object,the shift principle of the tractor＇s DCT is elaborated,the dynamics of shift process is analyzed,the mathematical model of the actuator is established.Based on the design requirement of DCT hydraulic shifting actuator,the shift actuator for tractor＇s DCT is designed.By applying MATLAB/Simulink software,the dynamic mathematical model is established.The model shall be simulated for the process of shifting.The result shows when each gear is switched,the time is less than 0.4s,it is conformed to the design requirements.A certain theoretical basis for the design and development of the tractor DCT is provided.

关 键 词：拖拉机 DCT 换档执行机构 液压系统 

分 类 号：S219.1[农业科学—农业机械化工程]