A relay valve with the function of adjusting the brake cylinder pressure of empty and heavy vehicles
A technology of brake cylinder pressure and empty heavy vehicle, applied in the field of relay valve, can solve the problems of scratched wheels, insufficient braking rate, unreliable braking, etc., and achieve the effect of reliable braking
Active Publication Date: 2016-08-24
MEISHAN CRRC BRAKE SCI & TECH CO LTD
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Problems solved by technology
[0002] In the air brake system of the existing vehicle, if the existing relay valve is used for brake control, the pressure of the brake cylinder will be the same regardless of whether the vehicle is running with no load or with a heavy load. If it is designed according to the heavy vehicle, the braking rate will be too large when the vehicle is running without load, and the wheel will be scratched due to sliding; if it is designed according to the empty vehicle, the braking rate will be seriously insufficient when the vehicle is running under heavy load, so that the braking will not be effective. reliable
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[0013] Below in conjunction with accompanying drawing, the present invention is described in detail.
[0014] 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.
[0015] Such as figure 1 As shown, a relay valve with the function of adjusting the pressure of the brake cylinder of an empty and heavy vehicle, including a valve body, in which a supply valve 1, an exhaust valve 2, an equalizing piston 3 and an empty weight The car piston is composed of 4, and the valve body is composed of a screw cap 16, a body composition 17, a middle body 18 and a lower cover 19, and the screw cap 16 is threadedly connected with one end of the body composition 17, and the oth...
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The invention discloses a relay valve with an empty and loaded vehicle brake cylinder pressure adjusting function. The relay valve comprises a valve body assembly, wherein a supply valve, an exhaust valve, a balance piston assembly, an empty and loaded vehicle piston assembly, a top rod, a pull rod and a jumping spring are arranged in the valve body assembly. The relay valve disclosed by the invention controls an auxiliary reservoir to inflate / deflate a brake cylinder according to the pressure change of a volume chamber, so that a train is braked, pressurized and released; the relay valve has the empty and loaded vehicle brake pressure adjusting function, so that the brake cylinder pressure can be controlled according to the load weight tonnage of a vehicle, different brake cylinder pressures are supplied according to the load weights of the vehicle, and the reliability of the braking is ensured.
Description
technical field [0001] The invention relates to a relay valve with the function of adjusting the brake cylinder pressure of an empty and heavy vehicle. Background technique [0002] In the air brake system of the existing vehicle, if the existing relay valve is used for brake control, the pressure of the brake cylinder will be the same regardless of whether the vehicle is running with no load or with a heavy load. If it is designed according to the heavy vehicle, the braking rate will be too large when the vehicle is running without load, and the wheel will be scratched due to sliding; if it is designed according to the empty vehicle, the braking rate will be seriously insufficient when the vehicle is running under heavy load, so that the braking will not be effective. reliable. Contents of the invention [0003] The object of the present invention is to solve the above-mentioned problems and provide a relay valve capable of controlling the pressure of the brake cylinder ...
Claims
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IPC IPC(8): B60T15/18
CPCB60T15/18B60T2250/02
Inventor 刘亚梅申燕飞谢磊朱宇刘文军赖宏张俊英
Owner MEISHAN CRRC BRAKE SCI & TECH CO LTD