差高机构对微型履带山地拖拉机稳定性的影响  

Effect of Mechanism of Height Difference on Stability of Miniature Crawler Hillside Tractor

作　　者：刘恒培[1] 杨福增[1] 刘世[1] 卢毅[1] 

机构地区：[1]西北农林科技大学机械与电子工程学院,陕西杨凌712100

出　　处：《拖拉机与农用运输车》2013年第1期18-21,共4页Tractor & Farm Transporter

基　　金：国家"十二五"科技支撑计划项目(2011 BADE4C10);公益性行业(农业)科研专项经费资助

摘　　要：为使微型履带山地拖拉机更好地适应丘陵、山地等地带作业,在现有履带拖拉机的基础上,对其行走系统进行了改进,增加了液压差高机构。根据差高机构的工作原理,运用矢量矩阵理论,建立了差高机构工作时整机质心位置变化的数学模型,并进一步给出了在坡道行驶时允许的最大坡度角。实例分析表明,差高机构使微型履带山地拖拉机纵向稳定性有所降低,但可提高其横向稳定性。In order to make the miniature crawler tractor better adapt to the mountain and hills, its walking system was improved on the basis of existing crawler tractor, and the mechanism of height difference was added. According to the working principle of the mechanism of height difference and the vector matrix theory, mathematical model of changing centroid position of the mechanism of height difference was established, and the maximum slope angles were further proposed. Example analysis showed that the mechanism of height difference could improve the lateral stability of miniature crawler hillside tractor.

关 键 词：高差机构 山地拖拉机 稳定性 

分 类 号：S219.02[农业科学—农业机械化工程]