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Method and device for controlling average tube pressure of locomotive brake

A technology of control devices and brakes, applied in the direction of brake safety systems, etc., can solve the problems of unable to control average tube pressure, unable to realize average tube pressure control, and output without average tube pressure

Active Publication Date: 2021-06-04
QINGDAO SRI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, locomotive brakes generally adopt the design of turning the brake machine into the supplementary mode after power failure, but the average pipe pressure cannot be controlled in the supplementary mode, and when the locomotive brake is in the relief state and loses power, it will switch to the supplementary mode There is a problem with the average tube without pressure output
In addition, when the locomotive brake has no power input or fails to turn to the air position, the locomotive brake cannot realize the pressure control of the average tube

Method used

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  • Method and device for controlling average tube pressure of locomotive brake
  • Method and device for controlling average tube pressure of locomotive brake
  • Method and device for controlling average tube pressure of locomotive brake

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] like figure 1As shown, a locomotive braking machine average pipe pressure control device provided by the present invention includes an air backup unit 1 for controlling the train pipe pressure when the brake system fails, a contact switch 2, a second solenoid valve 3, The first solenoid valve 10, the first pneumatic reversing valve 4, the shutoff valve 5 and the pressure switch 16; the air circuit interface of the pressure switch 16 is connected to the main air joint pipe 15, and the electric switch common end of the pressure switch 16 is connected to the air backup unit 1 The power supply terminal of the pressure switch 16 is connected to the common end of the electric switch of the pressure switch 16 and the common end of the contact switch 2, and the normally open end of the contact switch 2 is connected to the coil of the second solenoid valve 3; the air inlet of the second solenoid valve 3 is connected to the The main air manifold 15 is connected, and the air outle...

Embodiment 2

[0042] Such as figure 2 As shown, the average pipe pressure control device of a locomotive brake provided by the present invention includes an air backup unit 1 for controlling the train pipe pressure when the brake system fails, a contact switch 2, a third solenoid valve 18, The first electromagnetic valve 10, the first pneumatic reversing valve 4, the second pneumatic reversing valve 19, the blocking valve 5 and the pressure switch 16; The common end of the switch is connected to the power end of the air backup unit 1, the normally open end of the electric switch of the pressure switch 16 is connected to the common end of the contact switch 2, and the normally open end of the contact switch 2 is connected to the coil of the third electromagnetic valve 18; The air outlet of electromagnetic valve 18 links to each other with the control port of the second pneumatic reversing valve 19, and the air inlet of the third electromagnetic valve 18 links to each other with main air pip...

Embodiment 3

[0045] Such as image 3 As shown, a locomotive braking machine average pipe pressure control device provided by the present invention includes an air backup unit 1 for controlling the train pipe pressure when the brake system fails, a contact switch 2, a second solenoid valve 3, The first solenoid valve 10, the first pneumatic reversing valve 4 and the shut-off valve 5; the coil of the contact switch 2 and the second solenoid valve 3 are connected in series to the power supply end of the air backup unit 1; the intake air of the second solenoid valve 3 The port is connected with the main wind pipe 15, the air outlet of the second solenoid valve 3 is connected with the control port of the first pneumatic reversing valve 4 and the control port of the shut-off valve 5; the air outlet of the first pneumatic reversing valve 4 is connected with the brake The cylinder pressure control unit 6 is connected, the air inlet of the first pneumatic reversing valve 4 is connected with the ave...

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PUM

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Abstract

The invention discloses a method and device for controlling the average pipe pressure of a locomotive braking machine. The action of the directional valve and the blocking valve makes the pressure of the average pipe controlled by the brake cylinder pressure control unit, which realizes the pressure control of the average pipe. It prevents the average pipe pressure from dropping rapidly and lowers the pressure of the local brake cylinder, thus ensuring the safety of the train.

Description

technical field [0001] The invention belongs to the technical field of railway locomotive brakes, and in particular relates to a method and device for controlling the average pipe pressure of a locomotive brake when it is powered off and under air level. Background technique [0002] Heavy-duty technology is one of the development directions of railway technology. Locomotive reconnection is an important link to realize heavy-duty technology. Locomotive reconnection means that two or more locomotives are connected together to form reconnected locomotives. Domestic locomotive brakes realize the brake cylinder pressure control of double-connected locomotives by setting the average pipe. The received average pipe pressure is amplified by the action valve to control the supplementary brake cylinder pressure. At present, locomotive brakes generally adopt the design of turning the brake machine into the supplementary mode after power failure, but the average pipe pressure cannot b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T17/18
CPCB60T17/18
Inventor 谢启明高殿柱方长征毛金虎李开晔刘杰谢军威
Owner QINGDAO SRI TECH CO LTD