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An integrated electropneumatic execution unit

An executive unit and integrated technology, applied in the direction of brakes, transportation and packaging, railway car body parts, etc., can solve the problems of large longitudinal impulse of freight cars, low wave speed, and inability to realize stage braking and stage relief of freight car brake cylinders, etc. To achieve the effect of improving safety and reliability

Active Publication Date: 2017-12-19
MEISHAN CRRC BRAKE SCI & TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the pure air brake transmits the braking information through the fluctuation of the pressure of the brake pipe, the wave speed is low, resulting in poor braking synchronization of different vehicles, and the longitudinal impulse of the truck is large, so it is impossible to realize the phase braking and phase relief of the truck brake cylinder

Method used

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  • An integrated electropneumatic execution unit

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Embodiment Construction

[0015] Below in conjunction with accompanying drawing, the present invention is described in detail.

[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0017] like figure 1 As shown, an integrated electro-pneumatic actuator unit includes a flow amplifying valve 1, a switching valve 2, a braking solenoid valve 3, a relief solenoid valve 4, and a switching solenoid valve 5. The flow amplifying valve 1 includes a valve body 6 The inner rubber diaphragm 7, valve sleeve 8 and double rubber valve stem 9 are provided with a template return spring 10 between the rubber diaphragm 7 and the bottom of the valve body 6, and between the double rubber valve s...

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Abstract

The invention discloses an integrated-type electro-pneumatic execution unit, comprising a flow amplification valve, a conversion valve, a brake electromagnetic valve, a release electromagnetic valve and a conversion electromagnetic valve, wherein the flow amplification valve comprises a rubber diaphragm plate, a valve sleeve and a dual-rubber valve rod which are all arranged in a valve body; a template reset spring is arranged between the rubber diaphragm plate and the bottom part of the valve body; a valve rod reset spring is arranged between the dual-rubber valve rod and the top part of the valve body; the upper rubber valve core of the dual-rubber valve rod is matched with an inflation valve seat so as to form a control valve port A; the lower rubber valve core of the dual-rubber valve rod is matched with the upper end of the valve sleeve so as to form a control valve port B; the valve sleeve and the rubber diaphragm plate are connected together. The integrated-type electro-pneumatic execution unit can be conveniently installed between a distributing valve and an installation seat, and the backup function of the distributing valve can be reserved; a brake cylinder is controlled by the integrated-type electro-pneumatic execution unit by utilization of the conversion valve when the integrated-type electro-pneumatic execution unit is energized, and is controlled by a brake distributing valve when the integrated-type electro-pneumatic execution unit shuts off due to failure or is de-energized, therefore the safety and reliability for operation and control of vehicles are improved.

Description

technical field [0001] The invention belongs to the technical field of railway freight car brake control, and in particular relates to an integrated electro-pneumatic execution unit. Background technique [0002] Existing railway freight cars mainly use a pure air braking system, that is, the air pressure change of the brake pipe and the brake distribution valve is used to control the filling and exhausting of the brake cylinder, so as to realize the braking control of the railway freight car. Since the pure air brake transmits the braking information through the fluctuation of the pressure of the brake pipe, the wave speed is low, resulting in poor braking synchronization of different vehicles, and the longitudinal impulse of the truck is large, so it is impossible to realize the phase braking and phase relief of the truck brake cylinder. Contents of the invention [0003] The object of the present invention is to solve the above-mentioned problems, to provide an integrat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/36B60T13/68B61H11/10
CPCB60T13/365B60T13/683B61H11/10
Inventor 蒋勇刘天赋闫一凡安鸿刘亚梅刘文军
Owner MEISHAN CRRC BRAKE SCI & TECH CO LTD
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