联合采伐机六足行走装置单足力学解算与分析  

The Mechanics Calculation and Analysis of a Single Foot within the Six Legged Walking Device of Combined Harvesting Machine

作　　者：杨卫杰[1,2] 孟兆新[1] 秦国新[1] 

机构地区：[1]东北林业大学机电工程学院,哈尔滨150040 [2]北京航空航天大学机械工程及自动化学院,北京100191

出　　处：《森林工程》2015年第1期66-69,74,共5页Forest Engineering

基　　金：黑龙江省自然科学基金项目(C201238)

摘　　要：联合采伐机等重型机械都需要灵活而又稳定的行走装置,本文设计的六足行走装置就是为了满足联合采伐机等林业机械在山地、坡地等特殊地形的爬行和越障要求。单足是六足行走装置中的重要组成部分。根据六足行走装置的受力特点,将其受力情况进行简化处理,进而进行机构的正解算,得到力学参数,然后利用UG软件对联合采伐机的六足行走装置进行三维建模,再利用ANSYS对部分零件进行有限元分析,得到单足的各个零件的变形图和应力图,最后根据单足各个零件的变形程度和应力分布状况,确定出最大变形量和最大应力,将最大值与许用值进行比较,从而校核其强度。通过分析和比较的得到最大值小于许用值,说明单足零件能够满足在假设条件下的强度要求。A flexible and stable walking device is required in heavy machines such as combined harvesting machine. This paper is designed to satisfy the needs of walking of the combined harvesting machine in the mountain,slope and other special crawling terrain. Single foot is an important part in the six legged walking device. Based on the stress characteristics,the stress is simplified,and then the mechanism of positive solution,mechanics parameters are obtained. The UG software is used to present the three-dimensional model of six legged walking device,then ANSYS is used to illustrate the finite element analysis of the parts and the stress diagram and the strain diagram of the single foot can be obtained. According to the degree of deformation of single foot and the distribution of stress,the maximum deformation and the maximum stress can be determined. By comparing the maximum allowable values with the maximum data,we find that the single foot can meet the strength requirements under the necessary conditions.

关 键 词：单足 力学分析 有限元分析 

分 类 号：S776.33[农业科学—森林工程]