Study on static characteristics of spiral drill bit of auger shearer

In order to develop a high-strength spiral drill bit,the solid model of the spiral drill bit of a certain auger shearer was established by using cylindrical-coordinate system positioning method.In addition,the finite element analysis software ANSYS Workbench was applied to the static characteristic analysis of the spiral drill bit,and then the force status as well as the strain and stress distribution of the spiral drill bit were obtained.At last,the improvement measures were proposed,which offered guidance for the structural optimization and the failure analysis of the spiral drill bit.