An anti-running device against rope breakage for an inclined shaft mine car

Abstract

The invention discloses a rope-breaking anti-sliding device for an inclined well mine vehicle. An overspeed sensing device constituted by a sliding block with a bend hook at the end and a sliding block reset spring is fixedly mounted on a wheel; a braking device consisting of a braking pawl, a braking steel wire rope and an operating rod is arranged at the lower part of a vehicle frame; a movement converting device consisting of a bearing capstan and a shifting rod is arranged between the overspeed sensing device and the braking device, and the bearing capstan is constituted by a rolling bearing fixed on a vehicle shaft, a bearing sleeve, a capstan push rod and a capstan steel wire rope; an end head capable of being matched with the bend hook at the end of the sliding block is arranged at the end part of the capstan push rod, the outer end of the shifting rod is fixedly connected with the front end of the operating rod, the inner end of the shifting rod is arranged in a guiding groove, one end of the capstan steel wire rope is connected with the bearing sleeve, and the other end of the capstan steel wire rope is connected with the shifting rod. When rope-breaking sliding occurs, the braking device is triggered by the sliding block through centrifugal force, and a sleeper is hooked and pulled by the braking pawl, so that the mine vehicle is braked. According to the rope-breaking anti-sliding device disclosed by the invention, a derail phenomenon caused by that the wheel is suddenly locked and the braking pawl is jacked up can be avoided, so that the rope-breaking anti-sliding device is high in braking safety, high in braking speed and steady and reliable in braking property.

Description

technical field [0001] The invention relates to a mine safety device in a coal mine, in particular to an anti-running device against a broken rope of an inclined mine car. Background technique [0002] In order to prevent equipment damage and casualty accidents caused by broken ropes caused by sports cars when transporting personnel in inclined shafts of coal mines, according to relevant regulations, three positions must be set at the slope change point of the upper parking lot, the middle dumping yard and the lower parking lot of the inclined lane transport winch. A protective device for a sports car consisting of a car door or a car net, that is, "three gears on one slope". This is a sports car protection measure commonly used in coal mine inclined shafts. There are certain problems in the work of this kind of sports car protection device composed of a car door or a car net: because a fully loaded mine car has a large impact energy when a sports car occurs, when the strin...

AI Technical Summary

Problems solved by technology

There are certain problems in the work of this kind of sports car protection device composed of a car door or a car net: because a fully loaded mine car has a large impact energy when a sports car occurs, when the stringing car hits the car door or the car net, sometimes due to the impulse If it is too large, it will break through the car door or the car net; when it breaks through the car door or the car net, it will easily cause serious damage to a large number of equipment and casualties, directly affecting the safe production of coal mines

The problem with this device is that when braking, the fast-rotating wheels are suddenly locked, such as a sports car with a large impulse, prone to rollover and derailment accidents, which increases the risk of braking; in addition, this device is braked by friction. It takes a certain amount of time for the minecart to fully realize the braking from the sports car

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