Research on Strength of Roadheader Conical Picks Based on FiniteElement Analysis

摘要

This paper presents finite element analysis of the strength of roadheaher conical picks. Failure forms of conicalpicks are investigated, and the FE model of conical pick is established which is based on ANSYS. The static analysis iscarried out according to the load calculated by empirical formula and the deformation map and stress distribution isobtained. The results show that the maximum stress of conical pick appeared in the tool bit. In order to examine the resultof static analysis, contact analysis of conical pick cutting process is researched, and a consistency is achieved. The finiteelement analysis not only offers a new way of studying the strength of conical picks and improving the service life of thepick, but also provides a reliable theoretical basis for the selection, design and use of the conical picks.