Design of Wet Clutch Dynamic Braking Characteristic Test Bench for Winching
In order to determine the dynamic braking characteristics of wet clutch for winch under different working conditions,a test bench was designed and the braking characteristics of clutch under different working conditions were analyzed.The structure and control principle of wet clutch of winch reducer were described.The hydraulic system of the test bed was designed,including the design,selection and control of the pump station.The remote control system of the test bench was developed based on LabVIEW and PLC,and the real-time reading and saving of sensor data was realized based on Advantech data acquisition card.Finally,the clutch feedforward PID pressure closed-loop control method was proposed,the whole simulation system of the test bench was built,and the pressure control characteristics and dynamic braking characteristics of the wet clutch were simulated and verified by prototype test.The results show that the pressure hysteresis of the wet clutch control chamber is reduced by more than 80％,and the linearity of the clutch torque output is significantly improved,which meets the demand of the torque output performance test and can realize the dynamic braking characteristic test of the clutch under various typical working conditions.
万方数据
维普
