起重运输机械Issue(1)：118-123,6.
挖掘机工作装置的空间力学分析方法
侯鹏龙 1陆凤仪 1徐格宁 1马治宁1
作者信息
- 1. 太原科技大学机械工程学院 太原 030024
- 折叠
摘要
Abstract
When common excavator is equipped with a tilted rotator, accessories such as bucket not only move in the plane but also tend to deviate from the plane. Thus, the working device of the excavator is not simply a planar motion mechanism. In addition, former mechanical analysis of the working device of the excavator takes lateral force and tangential digging force separately, while the digging force is actually a three-dimensional force, especially after the tilted rotator is added. For this reason, a mechanical model of the excavator working device installed with tilted rotator is established by using bar group classifying method based on the algorithms of the equilibrium of space force system and matrix theory in theoretical mechanics, and a calculation method and calculation flow suitable for spatial stress analysis are obtained through theoretical derivation to analyze the stress on different components of the working device. According to the calculation of hinge force of bucket bar group and comparison with the results of traditional plane stress analysis, the calculation method is correct and compatible with plane stress analysis.关键词
挖掘机/工作装置/空间受力/分析Key words
excavator/working device/spatial force/analysis分类
交通工程引用本文复制引用
侯鹏龙,陆凤仪,徐格宁,马治宁..挖掘机工作装置的空间力学分析方法[J].起重运输机械,2018,(1):118-123,6.
