Modern Manufacturing Engineering ›› 2018, Vol. 453 ›› Issue (6): 6-11.doi: 10.16731/j.cnki.1671-3133.2018.06.002

Previous Articles     Next Articles

Influence of the size of hydraulic excavator’s working mechanismon the digging force play

Sun Mingqi1, Ma Lifeng1, Zhao Chunjiang1, Ma Ziyong2   

  1. 1 Heavy Machinery Engineering Research Center of the Ministry of Education, Taiyuan University of Science and Technology,Taiyuan 030024,China;
    2 The State Key Laboratory of Mechanical Transmission,Chongqing University,Chongqing 400044,China
  • Received:2017-02-20 Online:2018-06-18 Published:2018-07-20

Abstract: A research method of changing the size of working mechanism on the digging force of hydraulic excavator was presented.Considering the arm digging and the bucket digging in the digging operations.The working mechanism size of excavator with similar weight were selected,and the digging force analysis was carried under factors of boom,arm and bucket.According to the simulation software,the digging forces of each oil cylinder were obtained and the corresponding digging force curves were drew.Taking a excavator with similar tonnage as an example,the influence of each size of the working mechanism on the digging force play was verified.The research results show that a digging force calculation model is built to compare each group digging force tendency.In the arm digging,with the change of the arm size,the change rate of maximum digging force of arm is 10 %.In the bucket digging,with the change of the bucket size,the change rate of maximum digging force of bucket is 12 %.The method for the design of the working mechanism has important significance.

Key words: hydraulic excavator, working mechanism, digging force

CLC Number: 

Copyright © Modern Manufacturing Engineering, All Rights Reserved.
Tel: 010-67126028 E-mail: 2645173083@qq.com
Powered by Beijing Magtech Co. Ltd