Recently, Shendong equipment maintenance center Coal Group has successfully developed JOY Shearer drive vibration test stand to cool, fill the gaps in the company load detection inverter technology not only reduces shearer into the plant and maintenance of the failure rate, savings Inverter repair and assembly man-hours, but also effectively curb the rework caused by inverter failure phenomenon. The test bench includes cooling, analog vibration and electric control of three major components. The control of the test bed by the electronic control system, first by controlling the cooling water pump to the inverter cooling, completely avoiding the inverter load due to overheating caused by high current or even burn phenomenon. Then, by controlling the vibration motor to simulate the shearer vibration, thereby reducing the inverter in the shearer real working environment, to achieve the purpose of testing. Previously, the inverter test can only be tested in the test environment without load, do not have the cooling conditions. Today, the successful development of the test bed completely solves all the technical problems in the loading test of the frequency converter, so that the frequency converter is completely equipped with the load test conditions. The cooling system of the test bed can protect the frequency converter from the high temperature . At the same time, the test bed pioneered the use of vibration motor to simulate the power frequency vibration shearer, and by adjusting the amplitude of the inverter can maximize the recovery of the working environment inside the shearer in the detection of data accuracy and integrity and reliability More advantage.