Affiliation:
1. College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, 266590 Qingdao, Shandong, P. R. China
Abstract
Conical picks are the key cutting components used on roadheaders, and they are replaced frequently because of the bad working conditions. Picks did not meet the fatigue life when they were damaged by abrasion, so the pick fatigue life and strength are excessive. In the paper, in order to reduce the abrasion and save the materials, structure optimization was carried out. For static analysis and fatigue life prediction, the simulation program was proposed based on mathematical models to obtain the cutting resistance. Furthermore, the finite element models for static analysis and fatigue life analysis were proposed. The results indicated that fatigue life damage and strength failure of the cutting pick would never happen. Subsequently, the initial optimization model and the finite element model of picks were developed. According to the optimized results, a new type of pick was developed based on the working and installing conditions of the traditional pick. Finally, the previous analysis methods used for traditional methods were carried out again for the new type picks. The results show that new type of pick can satisfy the strength and fatigue life requirements.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Shandong Province
China Postdoctoral Science Foundation Funded Project
Publisher
World Scientific Pub Co Pte Lt
Subject
Computer Science Applications,Modelling and Simulation
Cited by
4 articles.
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