为了解决在斜坡上搬运设备和重型零配件的难题,我矿露天采场在一斜坡道上增设了一套滑车装置,明显提高了工效。但是,这套装置存在重大安全隐患:一旦牵引绳断开,滑车就会在重力的作用下沿轨道向下滑行,极易造成设备或人身事故。为了消除隐患,笔者将滑车底盘加以改造,增设了自锁? In order to solve the problem of handling equipment and heavy parts on slopes, the mine open pit has an additional tackle device on a ramp, which has obviously improved work efficiency. However, this device poses a significant safety hazard: once the traction rope is disconnected, the trolley slides along the track under the force of gravity and can easily cause equipment or personal accidents. In order to eliminate hidden dangers, I will be transformed chassis pulley, an additional self-locking?