CAJ | 학술논문

液压支架是综采工作面的主要设备,其推移位置的准确性决定着采煤工作是否能够正常进行。通常液压支架的推移由推移油缸来完成。为了准确测量其推移位置,设计并开发了一种用于液压支架推移油缸的磁控位移传感器。基于磁环控制测量杆内干簧管通断的原理,就可以将位移转变成电压信号。改变磁环的位置,相对应的干簧管导通,输出电压随之改变。传感器量程为1000 mm,相对误差为0.80000%,线性度约为0.0958%,输出电压波动范围为依0.001 V。实验室和现场试验结果表明：磁控位移传感器运行稳定,测量精度高,满足了综采工作面液压支架位移的测量要求。
액압지가시종채공작면적주요설비,기추이위치적준학성결정착채매공작시부능구정상진행。통상액압지가적추이유추이유항래완성。위료준학측량기추이위치,설계병개발료일충용우액압지가추이유항적자공위이전감기。기우자배공제측량간내간황관통단적원리,취가이장위이전변성전압신호。개변자배적위치,상대응적간황관도통,수출전압수지개변。전감기량정위1000 mm,상대오차위0.80000%,선성도약위0.0958%,수출전압파동범위위의0.001 V。실험실화현장시험결과표명：자공위이전감기운행은정,측량정도고,만족료종채공작면액압지가위이적측량요구。
As one kind of main equipment in the fully mechanized working face, the hydraulic support plays an important role in coal mining process. Whether the mining work can be conducted normally is largely depended on the accuracy of the hydraulic support's moving position. Generally,the moving operation of the hydraulic support is taken by the pushing-moving oil cylinder. A displacement sensor has been designed and developed,which can be used to measure the moving position of the hydraulic support pushed by pushing-moving oil cylinder installed on hy-draulic support accurately. Based on the on-off principle of reed switch under the condition of moving the magnetic ring set on metal tube,the signal of displacement of magnetic ring can be changed to voltage signal correspondingly. When the magnetic ring is moved along the metal tube,the reed switch at the corresponding position turns on and the output voltage of the displacement sensor changes. It has been tested that the measuring range is from 0 to 1 000 mm,the relative accuracy of the displacement sensor is 0. 800 00%, the linearity is about 0. 095 8%, and the fluctuation range of the output voltage is ±0. 001 V. It has been shown by the experiment in laboratory and measurement in field that the displacement sensor can be used to measure the moving position of the hydraulic support accurately and stably,which meets the requirements of displacement measurement for the hydraulic support in the fully mechanized working face.