Positive pressure braking device for rail transport vehicle

Abstract

The invention discloses a positive pressure braking device for a rail transport vehicle. A hydraulic cylinder is mounted on a mounting seat, a hydraulic rod is arranged in the hydraulic cylinder, and a braking rod is mounted at the front end of the hydraulic rod. The invention has the following technical effects: 1, during positive pressure type braking, wheels are separated from a track, a brake pad is in contact with the top surface of the track for braking, the contact area is large during braking of the top surface of the track, and the braking time and the braking distance are short in emergency; 2, the structural arrangement is compact, the center-of-gravity position of the vehicle is low, and safety, stability and reliability are achieved during operation; and 3, the braking force can be regulated and controlled through the pressure of the hydraulic system, and the universality of the brake is high.

Description

technical field [0001] The invention relates to a rail transport vehicle brake, which is applied to mine rail transport equipment such as endless rope continuous tractors in mines and mine rail cars. Background technique [0002] Rail transport vehicles are the main personnel and material transportation equipment in mines. Due to the complex working conditions and environment, transport vehicles are prone to speeding, overturning and falling off the road. In order to improve the safety of transport vehicles, brakes are usually installed on the vehicles. There are three main methods currently used. One is that the vehicles run on special-shaped tracks, and the brakes installed on the vehicles can only be used for braking on special-shaped tracks. In this way, the cost of track processing is high, and the applicability is limited because many mines use ordinary rails for transportation; one is that the vehicles run on ordinary rails, and the pressure measurement braking method...

AI Technical Summary

Problems solved by technology

In order to improve the safety of transport vehicles, brakes are usually installed on the vehicles. There are three main methods currently used. One is that the vehicles run on special-shaped tracks, and the brakes installed on the vehicles can only be used for braking on special-shaped tracks. In this way, the cost of track processing is high, and the applicability is limited because many mines use ordinary rails for transportation; one is that the vehicles run on ordinary rails, and the pressure measurement braking method is adopted, and the two sides of the brake rail are clamped for rail braking. In this mode, due to the limited area of ​​the side of the track, the braking area is small and the braking force is limited; one is positive pressure braking with brake claws, but the brake claws hook on both sides of the same track, because the mine The restriction of the lower rail joint, causing the brake claw to not pass through the rail joint

The traditional braking method is mainly through the spring pressure relief brake, the braking force is affected by the spring force, the design and layout of the brake car need to be adjusted according to the braking force, the versatility is not strong, and the spring needs to be installed on the frame The upper end takes up a lot of space, causing the center of gravity of the whole vehicle to rise, which affects the running stability of the brake car and the top system layout of the brake car

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