A double-clamp flat-push non-gravity electro-hydraulic vehicle reducer

Abstract

The invention provides a double-clamp flat-push non-gravity electro-hydraulic vehicle reducer, which includes the vehicle reducer installed on the basic rail and the brake splint, the reducer is a double-clamp flat-push brake mechanism, including two The brake mechanism unit is provided with an oil cylinder between the two brake mechanism units, and is symmetrical about the oil cylinder. The advantages and positive effects of the present invention are: the vehicle reducer is an electro-hydraulic non-gravity type, the hydraulic action is sensitive, the braking force is adjustable, and the braking has nothing to do with gravity, which can solve the problem of light vehicles jumping and then falling off the road, and is suitable for heavy loads Development; the reducer is a flat push type, and the brake splint is always in plane contact with the side of the wheel, which reduces the wear of the braking surface, improves the stability of the braking force, and has high vehicle control accuracy; the reducer only uses one oil cylinder, and the horizontal Installed in the center of the stock channel, the cost is low and it is easy to replace.

Description

technical field [0001] The invention belongs to the field of railway equipment, in particular to a double-clamp flat push non-gravity electro-hydraulic vehicle reducer. Background technique [0002] At present, the domestic hump vehicle reducer has pneumatic gravity clamp type, hydraulic gravity clamp type, electric gravity clamp type, electro-hydraulic inner support type, pneumatic non-gravity clamp type, but there is no electro-hydraulic non-gravity double clamp flat push type . Gravity vehicle reducers are mainly pneumatic, and electro-hydraulic is rarely used. The non-gravity pneumatic is mainly used in the interval position, and the electro-hydraulic internal support type reducer is mainly suitable for the purpose of the small hump marshalling field. Pneumatic gravity reducer has low failure points and less maintenance. Even if compressed air is used, it will not pollute the environment. It is the main speed control equipment for hump marshalling stations in China. H...

AI Technical Summary

Problems solved by technology

However, the braking force varies greatly and the braking noise is large. Pneumatic non-gravity reducers also have such problems, especially gravity reducers, which are easy to cause light vehicles to jump, and the fatigue strength of structural parts is related to the weight of the vehicle. Limit vehicle heavy load development

With the development of heavy load, there will be breakage of main parts and components, which will affect the normal marshalling operation

In addition, the parts on which the brake splint is installed in the existing clamp-type reducer are all rotating motions. With the difference in the opening of the brake splint or the width of the wheel rim, the contact between the brake splint and the wheel rim is often a line contact, and the braking friction is unstable. The precision of vehicle control is low, and the actual control process relies on frequent braking to improve the precision of vehicle control, resulting in high energy consumption

Images