Test device for loading rocker arm of coal mining machine

The utility model discloses a test device for loading a rocker arm of a coal mining machine, which comprises the rocker arm of the coal mining machine, a test platform, and a height adjusting device, a variable frequency speed regulating device, a torque and rotating speed measuring device, a sensor and a speed increaser which are arranged on the test platform, the coal mining machine rocker arm is correspondingly arranged on the height adjusting device, and the height of the test platform can be adjusted through the height adjusting device so as to adapt to coal mining machine rocker arms of different models; the control system is in control connection with the variable-frequency speed regulation device; the variable-frequency speed regulating device is in driving connection with the torque and rotating speed measuring device; the torque and rotating speed measuring device is connected with the speed increaser; the speed increaser is connected with a rocker arm of the coal mining machine; the sensor is arran