Active safe mine vehicle braking device

Abstract

The invention relates to a mine vehicle braking device, and solves the problems of insensitive response, long braking time, low reliability and turnout adaptability and the like of the conventional anti-deviation equipment in the braking process. The device consists of an overspeed inductor, a safety pin, an extension spring, a positioning block, a compression spring, an L-shaped arc hook, a cross shaft driver, a driving chain wheel, a chain, a driven chain wheel and a brake, wherein the overspeed inductor is fixed on a rear shaft of a mine vehicle and detects an overspeed signal of the mine vehicle; the cross shaft driver is meshed with the driving chain wheel and drives the brake to work; a bidirectional screw simultaneously drives a left-handed driving block and a right-handed driving block to move to the middle; and the left-handed driving block and the right-handed driving block make a left braking block and a right braking block to swing outwards through a left connecting rod and a right connecting rod, and the left braking block and the right braking block clasp a rail to generate a braking effect. The device has the advantages of sensitive response, short braking time, high turnout adaptability and reliability and the like, is convenient to overhaul, and is mainly used for braking the mine vehicle in mine inclined well transportation operation.

Description

Technical field: [0001] The invention relates to the technical field of a mining car braking device, in particular to an active mining car safety braking device. Background technique: [0002] Inclined shaft rail manned / mine car usually is a main car tow three (or four) ore buckets, and the mine car is lifted to the ground by a winch and a wire rope hanging on the coupler of the main mine car. However, in the lifting process, if the rope breaks or decouples, it will immediately lose control, 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 safety production. At present, the solutions to this problem include: (1) installing a car barrier, a car stopper, an automatic refill device, a fork car stopper, etc. in the mine to directly block the mine car; (2) detecting the running speed of the mine car by an infrared detection element. , use net fence or wire rope net f...

AI Technical Summary

Problems solved by technology

[0003] The disadvantages of the above schemes (1) and (2) are that they are 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 destructive to the equipment. bigger

Plan (3) is very difficult to implement. It costs more than 100,000 yuan to configure a brake wire rope of several hundred meters together with the brake car in the mine. Not only is the cost high, but also how to support the brake wire rope in the roadway is also a problem. The hindrance to the normal driving of minecarts should not be underestimated

The disadvantage of solution (4) is that when the mine car passes through the up and down gradient points, the traction force of the wire rope will change significantly, which is prone to misoperation

The disadvantage of solution (5) is that the structure is complex and the required installation space is large, ignoring the actual situation that the available space of the mine car is small

The disadvantage of solution (6) is that the electronic components have a short service life and are prone to failure in the harsh working environment of the mine, and the equipment cost is relatively high, so it is not suitable for retrofitting and installing all mining vehicles

The braking scheme proposed by the existing patent adopting the scheme (7) does not fully consider the crossing of underground rails and the existence of sideways. The rail holding or locking mechanism will affect the normal use of the mine car or cannot effectively perform braking.

Images