Intelligent braking and stopping device for freight vehicle derailment

Abstract

The invention provides an intelligent braking and stopping device for freight vehicle derailment. The device comprises a tee joint, a ball valve and an intelligent valve which mainly comprises a three-shaft acceleration sensor, a singlechip, a storage, a driving circuit, a self-holding pilot-operated solenoid valve and a high-energy small-sized lithium cell, wherein the two ends of the tee joint are connected in series to a train air pipe; the ball valve is connected with a third end of the tee joint; and the air inlet of the intelligent valve is connected with the other end of the ball valve, and the air outlet of the intelligent valve is communicated with the atmosphere. When the vertical acceleration of a train bottom reaches 6g or the transverse acceleration reaches 3g after a train starts running, the freight car section is proved to have run off rails and is driven by a train head to advance on a crosstie in a way of shaking up and down, and the self-holding pilot-operated solenoid valve of the intelligent valve is opened from a closed state. Practical tests show that the time from the opening of the solenoid valve on a train tail to the emergency braking of the train head is about 4 seconds in a 60-section freight car, so the device can effectively prevent serious accidents, such as roll-over and the like caused by the derailment of part of freight cars. The device is applicable to various railway freight cars.

Description

technical field [0001] The invention relates to a braking device, in particular to a device capable of monitoring the running conditions of railway wagons and performing emergency braking when derailed, belonging to the field of railway vehicles. Background technique [0002] At present, due to economic and technical reasons, only a few train track sections in my country have installed derailment monitoring devices, and it is almost impossible to install derailment monitoring devices on national lines. However, the vehicle-mounted derailment braking and parking devices can only be used mechanically because the trucks have no power supply. According to the formula principle, there are a series of problems such as single criterion, poor accuracy, poor reliability, unrecordable data, short life, difficult installation, not suitable for harsh environments, and high cost. So it was only tested on a small number of vans and has been discontinued. Contents of the invention [000...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the shortcomings of the lack of emergency braking device or mechanical emergency braking device when the existing trucks are derailed, and to design a kind of small volume, ...

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