The invention relates to the technical field of coal mine auxiliary transportation devices, in particular to an overspeed protection device for a pneumatic monorail crane. The device comprises an overspeed protection device which comprises a vertical plate, the back surface of the vertical plate is fixedly connected with the front surface of a connecting base plate, and a speed taking wheel is rotatably connected to one corner part, close to the top end, of the back surface of the vertical plate; the bottom end of the periphery of the speed taking wheel makes rolling contact with the rail faceof the guide rail, the front face of the vertical plate is rotationally connected with a centrifugal releaser, the speed taking wheel is in transmission connection with the centrifugal releaser, theside face of one end of the shifting fork is tangent to the periphery of the centrifugal releaser, and a switch button of the reversing valve is connected with the upper surface of the end of the shifting fork, and the centrifugal releaser comprises a rotating body and a column body, the column body is radially sleeved in a circular hole in the outer side surface of the rotating body in a slidingmanner; when overspeed operation occurs, the speed taking wheel can drive the centrifugal releaser to rotate at a high speed, so that the column body stretches out under the action of centrifugal force to apply external force to the shifting fork, the shifting fork triggers a button of the reversing valve, and the automatic braking effect is achieved.
本发明涉及煤矿辅助运输装置技术领域,尤其是一种风动单轨吊用超速保护装置,包括超速保护装置,超速保护装置包括立板,立板的背面与连接基板的正面固定连接,立板背面的靠近顶端一角部位置转动连接有取速轮,取速轮外围的底端与导轨的轨面滚动接触,立板的正面转动连接有离心释放器,取速轮与离心释放器传动连接,拨叉的一端侧面与离心释放器的外围相切,换向阀的开关按钮与拨叉端头的上表面连接,离心释放器包括旋转体和柱体,柱体沿径向滑动套装在旋转体外侧面的圆孔内;出现超速运行时,取速轮会带动离心释放器高速旋转,使得柱体受离心力作用伸出,以对拨叉施加外力,进而由拨叉触动换向阀的按钮,实现自动制动的效果。
Overspeed protection device for pneumatic monorail crane
一种风动单轨吊用超速保护装置
2021-01-12
Patent
Electronic Resource
Chinese
ADJUSTABLE MONORAIL CRANE CENTRIFUGAL OVERSPEED PROTECTION DEVICE
European Patent Office | 2023
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