The hydraulic motor is an executive component of the hydraulic system, which converts the hydraulic pressure energy provided by the hydraulic pump into the mechanical energy (torque and speed) of its output shaft. Hydraulic motors, also known as oil motors, are mainly used in injection molding machinery, ships, hoists, engineering machinery, construction machinery, coal mining machinery, mining machinery, metallurgical machinery, marine machinery, petrochemical industry, port machinery, etc. For the motor manufacturer or user, the hydraulic motor test is necessary to determine the mechanical characteristics of the motor produced or used.
The hydraulic motor test bench is a magnetic powder dynamometer composed of hydraulic station, hydraulic motor, torque sensor, magnetic powder brake and measurement and control system. It can test the torque, speed and power of hydraulic motor; Inlet pressure, outlet pressure and differential pressure; Circulating flow, leakage flow, volumetric efficiency and total efficiency; Inlet and outlet temperature, temperature difference, etc.
This test bench is a magnetic particle dynamometer with magnetic particle brake as the simulated load. The magnetic particle dynamometer is based on the electromagnetic principle and uses electromagnetic transmission of torque. It has the advantages of fast response, simple structure and other advantages. When the internal coil passes through the current, the magnetic line of force will be generated, and the magnetic loop will be formed to generate torque. Changing the excitation current can change the hysteresis torque of the dynamometer, so as to achieve the purpose of controlling the load torque and complete the load characteristic test.
The cast iron platform is used as the foundation of the test platform, and the T-groove platform is manufactured according to the national GB4986-85 standard. T-groove flat plate is also known as T-groove workbench. T-groove flat plate is a kind of industrial measuring tool, mainly used to fix the workpiece, and is the basic working platform for fitters to debug equipment, assemble equipment, and maintain equipment.