The Performance Analysis And Experimental Research Of Gear Pair Based On Dual-motor Anti-backlash

Gear pair,as one of the most widely used transmission device in numerous mechanical equipment,its transmission precision and stability will affect the whole mechanical equipment’s stability and performance directly.According to the lubrication and installation requirements,it must have the backlash between the gear teeth profile,at the same time,this backlash will make the shock occurs during the teeth meshing.The shock will become the main factors which influence the device’s transmission stability and accuracy.In this paper,we design the test bed to do gear pair’s performance test which is based on the dual-motor anti-backlash technique,then use the planetary gear transmission as the research object to carry out performance test and analysis.The researches we have mainly completed as shown in the following.Firstly,we establish the planetary gear transmission’s nonlinear dynamic model which considers the several main nonlinear parameters include backlash,time-varying mesh stiffness and comprehensive mesh error synthetically.Use numerical solution to analyze the effect on planetary gear transmission’s dynamic performance which is caused by the input speed and bias torque.Secondly,on the basis of 3D entity modeling,we do the dynamic simulation analysis of the planetary gear transmission,analyze the effect which caused by the parameters on its dynamic performance,then the dynamic simulation results and the established nonlinear dynamic model’s solution are compared and analyzed.All of these can provide reference value to guide the performance optimization of planetary gear transmission.After that,design the gear transmission performance test system based on the structure of dual-motor anti-backlash.The two servo motors are installed on the driving end and load end of planetary gear transmission respectively,then the gear transmission dynamic performance test bed is set up based on dual-motor anti-backlash technique.Finally,design the test scheme of planetary gear transmission’s speed-bias torque orthogonal experiment,complete test control software development.Collect and analyze the vibration signal of planetary gear transmission during the process of bias torque anti-backlash so that we can analyze the effect which caused by speed-bias torque on the performance of anti-backlash.This test can provide theoretical and experimental basis to improve the transmission accuracy of planetary gear transmission.