Development and application of mechanical car stopping device in coal mine<br>Hu Chang Jiang<br>(Junlian Sichuan coal Furong Xinwei Coal Co., Ltd. Sichuan Yibin 644000)<br>[Abstract] the car blocking device is an important part of the safety protection device in the underground and ground rail transportation system of coal mine. After the structure is improved, the operation is simple, fast, safe and reliable, and the work that the car blocking device can not be used normally due to the man-made destruction of the car blocking device is eliminated. It promotes the safe transportation of the track and provides a reliable guarantee for the safe production of the coal mine.<br>[Key words] 200 channel steel body; car bar heavy hammer body; operation body<br>
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