Duplex coil large-drift-diameter plate type antiskid exhaust valve for installing railway vehicle

Abstract

The invention relates to a duplex coil large-drift-diameter plate type antiskid exhaust valve for installing a railway vehicle. The exhaust valve comprises a middle valve body, an air inlet side plate and an exhaust side plate. An air inlet diaphragm is installed between the middle valve body and the air inlet side plate, and an exhaust diaphragm is installed between the middle valve body and the exhaust side plate. A pre-control pressure inlet P, an air inlet D, an air outlet C and an atmosphere exhaust port O passage structure are sequentially arranged at the bottom of the middle valve body. An exhaust port T is formed in the exhaust side plate. A duplex coil redundant structure is installed between the air inlet side plate and the exhaust side plate and is composed of four coils, the four coils are divided into two sets to control whether corresponding movable iron cores are excited or not, the two sets of coils are in redundant backup and can both control the antiskid exhaust valve to work, and system reliability is improved. Large-caliber ports are adopted for the atmosphere exhaust port O, the air inlet D and the air outlet C, the atmosphere exhaust port O, the air inlet D and the air outlet C are horizontally arranged at the bottom of the middle valve body, air charging and exhausting operation can be fast performed on a brake cylinder, meanwhile, a slab structure is adopted, detachment and replacement are facilitated, and maintenance is facilitated.

Description

technical field [0001] The invention relates to the technical field of locomotive and vehicle brakes, in particular to an anti-skid exhaust valve for a rail vehicle with a double-coil large-diameter plate-type installation. Background technique [0002] With the development of rail vehicles in the direction of high speed and heavy load, the use of an effective anti-skid system can solve the problems of tread abrasion and low adhesion utilization rate when the vehicle brakes. The function of the anti-skid system is to control the anti-skid exhaust valve to exhaust, maintain pressure, and fill the brake cylinder according to the change of wheel speed detected by the speed sensor and the control requirements when the rail vehicle is braking, so as to achieve effective braking force. adjust. The anti-skid system mainly consists of a speed sensor, a control device, and an anti-skid exhaust valve. As the actuator of the anti-skid system, the anti-skid exhaust valve has the basic ...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned air exhaust valve needs to be equipped with a pipe-mounted valve seat with a pressure air inlet and outlet at the lower end of the intermediate body, and the air circuit structure inside the above-mentioned air exhaust valve is relatively complicated, and the layout of the air circuit structure will directly affect the execution efficiency and response speed of the anti-skid system

Furthermore, the electromagnetic coils of the existing exhaust valves are all single coils. Once the coils do not respond in time or fail, the excitation efficiency and response reliability of the iron core will be affected.

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