Design and application of measurement system of 15000 Nm drill rig stand

With advancing of drilling capacity of drill rig for underground coal mine,the previous drill rig test stand can not meet the need for testing the torque moment over 6000 Nm.Therefore,a new drill rig test stand is established.The new system includes both of hardware and software.The maximum torque moment is 15 000 Nm,the maximum feeding force is 300 kN.The system is of high work efficiency due to its intelligence instrument.The system has also safety guard.The comparison study of new stand and previous stand indicates that the measurement results of both stands are same.