拖拉机半履带行走装置设计与试验

针对丘陵地区轮式拖拉机田间作业时爬坡能力差、作业效率不高的问题，研究开发了一种半履带拖拉机行走装置。该装置主要由行走支架、减速机构、履带驱动轮、导向轮、若干支重轮、橡胶履带以及张紧轮机构等部件组成，对有一定坡度的山地适应能力好、不易打滑。田间驱动性能试验表明:拖拉机前轮线速度和履带驱动轮的线速度相对误差控制在4%以内，符合动力机械田间作业性能要求。该履带行走装置的成功研制对推动丘陵山区农业机械化的发展有重要意义，也为其他企业或科研院校研制开发半履带拖拉机提供了参考。 

Design and Experiment on Half-track Walking Device of Tractor

A kind of half-track walking device of tractor for hill area to solve the problem of bad crawling ability and low efficiency was designed.This device mainly consisted of walking bracket，decelerating mechanism，track driving wheel，guiding wheel，some supporting wheel，rubber track and tensioning mechanism.It could fit hill area well and didn′t slip.Field driving performance tests showed that the line speed error was in 4% between front-wheel of tractor and track driving wheel，which was accord with the design aim.The successful development of this half-track walking device was good for promoting hill area agricultural machinery development.And it provided reference for other enterprise or research organization to design half-track walking device.