Hydraulic Element Durability Test Bench and Test Method with Self Control Function

摘要

TECHNICAL FIELD The present invention relates to a hydraulic element durability test bench and a test method, and in particular, when continuously testing the durability of hydraulic elements such as hydraulic cylinders and hydraulic motors for a long time, the operation of the system is controlled according to the change of state of the hydraulic element. Hydraulic element durability test bench and method with control functions. Hydraulic element durability test bench with a self-control function according to a preferred embodiment of the present invention, the engine equipped with a radiator, a pump for pumping the hydraulic fluid to the power from the engine, the hydraulic oil flow path in accordance with the operation of the remote control valve A hydraulic element durability test bench consisting of a main control valve for selectively switching and a tank for receiving precious oil from a swing motor tested by hydraulic oil from an internal flow path of the main control valve, the pressure fluctuation of the hydraulic oil A pressure switch provided at the outlet side of the engine and the pump and an outlet side of the swing motor to detect a temperature, and a temperature provided at the outlet side of the radiator and the swing motor, respectively, to detect a temperature change of operating oil. Sensor, and the pressure switch and the And a storage device for storing data from the temperature sensor and for controlling the solenoid valve to control the operation of the test bench according to the data. The durability test method of the hydraulic element according to the present invention also provides that, when the measured value of the hydraulic oil temperature and the radiator water temperature is more than the set upper limit of the hydraulic oil temperature and the radiator water temperature, until the temperature of the hydraulic oil and the lower limit of the water temperature of the radiator are dropped. Controlling and stopping the swing operation of the swing motor,;When the measured value of the hydraulic oil temperature and the radiator water temperature drops to the set lower limit of the hydraulic oil temperature and the radiator water temperature, the swing operation is resumed.;Stopping the operation of the test bench when the measured pressure of the outlet side of the swing motor, the engine oil, and the pump is equal to or higher than a set upper limit, and;If the pressure measurement value of the outlet side of the swing motor, the engine oil, the pump is less than the set upper limit, it characterized in that it comprises the step of continuing to run the test bench.