Traction Performance of Hydro-mechanical Transmission System in Three-arm Rock Drill Trucks
Three-arm rock drill truck operate in tunnels with low road levelling and large load fluctuations,resulting in unstable traction performance output.Power levelling theory and mechanical equilibrium equations of the power transmission system are established based on power assembly,and furthermore,experiments on external characteristics of engine and original characteristics of torque converter are carried.Input characteristics and output characteristics of joint work are researched.The simulation model of power transmission system is established,and the traction performance experiment of whole machine is carried.Comparative results between whole-vehicle experiments and simulation calculations shows:the error of the maximum traction force in first,second and third gears is 1.8％,2.4％and 1.7％respectively,and the error of the maximum speed is 2.1％,1.9％and 2.3％,respectively.The theory of traction performance of three-arm rock drill truck is verified and has guiding significance for the research of traction performance of engineering vehicles under complex working conditions.
rock drill trucktorque converterenginetraction performancetransmission system
万方数据
维普
