Performance study of single and double shafts jaw crushers based on ADAMS

ZHANG Xian, LI Wenhao, ZHAO Zhangfeng, ZHONG Jiang

（Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry

of Education, Zhejiang University of Technology, Hangzhou 310014, China）

Abstract: Aiming at the low efficiency, uneven crushing materials and other shortcomings in the traditional compound pendulum jaw crusher, a new double shafts compound pendulum jaw crusher was introduced. Geometric models of traditional and new double shafts compound pendulum jaw crusher were simplified properly based on dynamical analysis software of ADAMS, and crankrocker mechanism and six institutions mechanism of virtual prototype model were established. Stroke characteristic value, minimum transmission angle and the variation features of velocity and acceleration in horizontal of the inlet and outlet of the crushing cavity were mainly studied. Then, experiments were done and the accuracy of the simulation analysis was verified. The results indicate that the double shafts jaw crusher is better than the single shaft jaw crusher in the stroke characteristic value, minimum transmission angle and the variation features of velocity and acceleration in horizontal of the inlet and outlet of the crushing cavity. As a result, the conclusions have some practical and reference value to design efficient and low consumption jaw crushers.

Key words: double shafts jaw crusher; ADAMS; kinematics analysis; stroke characteristic value; minimum transmission angle