基于ADAMS的单、双轴颚式破碎机性能研究

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

针对传统复摆颚式破碎机存在的破碎效率低、破碎物料不均匀等缺点,介绍了一种新型双轴复摆颚式破碎机。在运动学仿真软件ADAMS环境下,分别对传统单轴复摆颚式破碎机和新型双轴复摆颚式破碎机的几何模型进行了适当的简化,建立了曲柄摇杆机构和六杆机构的两种复摆颚式破碎机的虚拟样机模型。从行程特征值、最小传动角以及进料口、出料口在水平方向的速度、加速度这3个方面进行了主要的仿真研究。在此基础上,结合实物设计实验,试验结果验证了仿真分析的准确性。仿真结果表明,在这3个方面新设计的双轴复摆颚式破碎机的运动性能更优于普通的单轴复摆颚式破碎机。研究结果对高效、低耗颚式破碎机的设计研发具有一定的参考价值,有较强的实用性。

Aiming at the low efficiency, uneven crushing materials and other shortcomings in the traditional compound pendulum jaw crush- er, 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 institu- tions mechanism of virtual prototype model were established. Stroke characteristic value, minimum transmission angle and the variation fea- tures 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 resuhs 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.