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为了解决无轨胶轮车在斜井运行时因坡度大,距离长易造成车辆制动失效而引发跑车事故的问题,提出了使用速度失控保护装置以提高车辆运行的安全性。通过分析该装置应具有的功能,研究了其构成、工作原理、拦截装置的受力及车辆的制动距离等,并根据失速运行距离及制动距离提出了该装置在井下巷道的布置方式。以WC20R(D)防爆柴油机无轨胶轮车为例进行了试验,假设车重为7 t,爬坡度为12°,运行速度为29 km/h,巷道宽度为4.5 m,最大跑车速度为70 km/h,减速度在0.5g~2.5g之间,由MATLAB计算可知,此时拦截装置钢丝绳上的力应设定为3.09~11.84 t,制动距离约为116~23 m,首个拦截装置应布置在变坡点下方77 m处。
In order to solve the problem of sports car accident caused by large gradient and long distance easily caused by vehicle brake failure when the trackless rubber tire vehicle is operating in inclined shaft, a safety control device using speed out of control is proposed to improve the safety of vehicle operation. By analyzing the function of the device, the structure, working principle, force of the intercepting device and the braking distance of the vehicle are studied. According to the stalling distance and braking distance, the arrangement of the device in the underground tunnel is proposed. Take WC20R (D) explosion-proof diesel trackless rubber tire vehicle as an example, assuming a vehicle weight of 7 t, a grade of 12 °, a running speed of 29 km / h, a roadway width of 4.5 m and a maximum speed of 70 km / h, deceleration in the 0.5g ~ 2.5g, calculated by the MATLAB shows that at this time interception device wire rope force should be set at 3.09 ~ 11.84 t, the braking distance of about 116 ~ 23 m, the first interception device It should be arranged 77 m below the point of change.