Simulation Research on Motion Reliability of Joystick-Control Mechanism in Excavator

Abstract

Motion precision is an important evaluating index to evaluate the quality of the mechanisms. On the premise of fully studying the motion of joystick in the excavator, a new kind of joystick-control mechanism is proposed. The dynamics simulation model of the mechanism is constructed by ADAMS, so the dimension error and initial angle error of joint in the installation is analysed. Random sampling method are adopted to simulate the error of position of two key points, the simulation of transverse and longitudinal swing of is completed, and the effect on the motion precision of joystick is compared which is made by error of each direction of two key adjusting points. The motion reliability of the joystick-control mechanism is calculated, combined with the stress-strength interference theory.