Sanding device for railway vehicles

Abstract

The invention relates to a sanding device for railway vehicles. The sanding device comprises a sand box, a sanding unit and a sanding control module, wherein the sanding unit comprises a sander and a sand blasting pipe, the sander is installed at the bottom of the sand box and is communicated with the sand box, and a sanding heating box is connected between the sander and the sand blasting pipe; the sanding control module comprises an air channel board, and a sanding solenoid valve, a drying solenoid valve and a pressure reducing valve are installed on the air channel board, wherein the sanding solenoid valve is connected with a sanding wind inlet arranged in the sander through an air channel pipe, the drying solenoid valve is connected with a drying wind inlet arranged in the sander through the air channel pipe, and the pressure reducing valve is connected with a wind supply pipeline. The sanding device has a compact structure and is convenient for fault finding and maintenance. The amount of sanding can be regulated, and the sanding device has a drying function and can prevent sand in the sand box from hardening due to damp. The sanding device has a heating function and can prevent a sanding pipe from freezing at low temperature. The sanding device has an isolating function, and the sander can be switched off by a person in a fault. The sanding device has a testing function and can detect the pressure value of a system during debugging.

Description

technical field [0001] The present invention relates to a kind of sand spreading equipment, in particular, relates to a sand spreading device applied to rail vehicles. The sand spreading device can improve the adhesion coefficient between wheels and roads under unfavorable road conditions. Background technique [0002] Rail vehicles generally refer to various vehicles that run on special tracks. If the adhesion between the wheels and the rails is not enough, when the rail vehicles encounter bad weather, especially in winter or wet weather, the tracks are icy or slippery, and the tracks When the vehicle is running, stopping or emergency braking, it is prone to idling or derailment, which affects the normal driving of the vehicle and has poor safety. Therefore, most of the vehicles running on the track are equipped with a sanding device, which increases the friction between the wheel and the rail and increases the adhesion between the wheel and the track to achieve safe and re...

AI Technical Summary

Problems solved by technology

Most of the existing sand spreaders are gravity sand spreaders, it is difficult to accurately control the amount of sand spread, and the amount of sand spread is uneven. The accumulation of water in the pipeline freezes, or the sand in the pipeline condenses due to moisture, which makes the fluidity of the sand worse, so it will cause the sand spreading device to be blocked, and the sand will not be released, and the amount of sand will be reduced.

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