采煤机电缆牵引拉力过载保护装置

Cable traction tension overload protection device of shearer

针对因采煤机牵引电缆拉力过载而损坏电缆及电缆牵引夹的问题,设计了一种采煤机电缆牵引拉力过载保护装置。该装置采用拉力传感器采集采煤机牵引电缆过程中产生的牵引拉力信号,单片机智能控制电路通过软件分析判断牵引拉力是否过载,若电缆牵引拉力过载,单片机自动控制采煤机反向牵引,将采煤机牵引电缆拉力降为最低,并发出语音报警。实际应用验证了该装置的可靠性。

In view of problem of cable and cable traction clamp damaged by tension overloading of cable traction of shearer,a cable traction tension overload protection device of shearer was designed.The device adopts tension sensor to gather traction force signal produced in process of tracting cable by shearer,intelligent control circuit of microcomputer determines traction tension of cable of the shearer whether is overload or not through software analysis.If traction tension of the cable is overload,the microcomputer automatically controls reverse traction of the shearer,and reduces cable traction tension of the shearer to the lowest,and sends out a voice warning.The actual application verifies feasibility of the device.