Method and apparatus for detecting and controlling railway freight-car derailment

A technology of railway wagons and control methods, which is applied in the direction of railway vehicle testing, railway car body parts, railway braking systems, etc., and can solve problems such as no detection method found

Inactive Publication Date: 2008-07-02
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no simple and practical detection method and a detection device that can be installed on the vehicle to detect the derailment state of the truck and to alarm and stop the monitoring device or equipment in time

Method used

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  • Method and apparatus for detecting and controlling railway freight-car derailment
  • Method and apparatus for detecting and controlling railway freight-car derailment

Examples

Experimental program
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Effect test

Embodiment Construction

[0005] The schematic diagram of the detection method and control structure principle of the detection device is as follows: figure 1 with figure 2 shown. When the truck is running normally, due to the small vertical vibration acceleration, the cone valve rod 2 closes the throttle port under the action of the spring 3, and the throttle port is in a closed state; the gas in the air chamber communicates with the atmosphere through the damping hole, and is in a low pressure state; The piston 14 and the spool 12 are located at the front end limit position under the action of the back-moving spring and the gas pressure, and are in a closed state, and the air inlet and the exhaust port are blocked.

[0006] When the truck passes through the road fork or hook, etc., there will be a large vibration, the vertical vibration acceleration of the truck will increase greatly, and the valve body 1 connected with it will also vibrate accordingly, and the cone valve rod 2 in the device will v...

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PUM

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Abstract

The invention relates to a detecting means for goods train off-rail state base on the principle of vibration acceleration detecting principle and brake control device for preventing goods train disturbing, The whole measuring apparatus comprises a valve body, mechanical spring, valve link, air control change-over valve, The detecting control device can be mounted on the body of the good train, detecting variation of normal vibration acceleration of the good train via a mass-spring damp system formed from the valve link-mechanical spring in the device, realizing detecting goods train disturbing state, and, realizing depression brake to the goods train using a air control change-over valve connected with a existed brake pipeline. The invention cannot only detect goods train disturbing state, but also can be use to prevent other wheeled vehicle (for example road haulage vehicle) disturbing while running and brake control.

Description

technical field [0001] The patent of the present invention relates to a method for measuring the derailment state of railway wagons based on the principle of mechanical vibration acceleration detection and a braking control device for preventing wagons from overturning. Background technique [0002] At present, in addition to the targeted installation of ground-fixed train derailment automatic alarm devices in special fixed sections of railway wagons, my country has not installed automatic detection devices on most of the tracks. Due to economic and practical reasons, no This type of automatic detection device may be installed on railways across the country. Since the single-section truck works without electricity when it is running, it is only pulled by the mechanical hook, and the brake is realized by decompressing the compressed air. Therefore, on the basis of not changing the original operation mode and structure of the truck, the derailment detection of the truck can onl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61H11/02B61H13/00G01M17/10
Inventor 徐春广孟凡武周世圆
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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