Automatic mechanical running-preventing mine car

Abstract

The invention relates to an automatic mechanical running-preventing mine car comprising a mine car bucket (8), a braking device installed on a mine car frame (7) and a speed sensing device mounted on a wheel (6). The automatic mechanical running-preventing mine car is characterized in that: firstly, the braking device comprises a pair of braking claws (1) mounted on the mine car frame (7), the braking claws (1) are connected with a braking claw releasing plate (3) arranged on the mine car frame through a flexible rope (2), and an elastic element (9) is also arranged between the braking claws and the mine car frame; and secondly, the speed sensing device comprises a slide block installing seat (5) arranged on the wheel (6) as well as a slide block and a spring (10) which are both arranged in the slide block installing seat (5). When the mine car runs with excessive speed, the braking claws can automatically fall under the action of gravity and elastic force so that the mine car is braked in time. The invention solves the problems of complex structure, high cost and short service life of a traditional running-preventing mine car, and is particularly suitable for underground transportation of a mine.

Description

technical field [0001] The invention relates to an automatic anti-running mine car, in particular to a mechanical automatic anti-running mine car for avoiding accidents of the mine car sports car. Background technique [0002] In existing mines, the mine car for the tunnel continues to use the basic form that two pairs of wheels that can rotate freely are arranged on the vehicle frame, and the mine car is lifted to the ground by a winch. When the rope breaks or comes off the hook, it will lose control immediately, causing a major sports car accident. The problem of anti-car running in inclined shafts has always been a thorny problem that needs to be solved urgently in mine production. [0003] At present, the solutions to this problem include: (1) installing car barriers, car stops, automatic car arresters, fork car stoppers, etc. in the mine to directly block the mine car; (2) detecting the operation of the mine car through infrared detection elements Speed, using net fen...

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of the first and second solutions above is that it is only limited to a certain section and cannot block or brake the car in time when a sports car occurs. During the interception process, the impact energy is large and the damage to the equipment is relatively large

The third option is very difficult to implement. It costs more than 100,000 yuan to configure a brake wire rope with a length of several hundred meters in the mine together with the brake car. Not only the cost is too high, but also how to support the brake wire rope in the shaft is also a problem. The hindering effect of the brake wire rope on the normal running mine car should not be underestimated

The disadvantage of the fourth solution is that when the mine car passes through the up and down slope point, the traction force of the wire rope will change significantly, which is prone to misoperation

The disadvantage of the fifth solution is that the structure is complex and the installation space required is large, ignoring the actual situation that the available space of the mine car is small

The disadvantage of the sixth solution is that the electronic components have a short service life and are prone to failure in the harsh working environment of the mine.

Images