High flow pneumatic double solenoid valve for pneumatic amt gearbox

Abstract

The invention relates to an electromagnetic valve applied to a pneumatic AMT gearbox, particularly relates to a large-flow pneumatic double-electromagnetic-valve part applied to the pneumatic AMT gearbox and belongs to the technical field of automobile parts. The large-flow pneumatic double-electromagnetic-valve part comprises a socket component and a double-valve assembly which is composed of two single valves, wherein the socket component consists of a socket (1) and a plug (2) which is injection-molded in the socket; each single valve comprises a valve body (12), a nozzle (13), a coil cover (9), a coil component (7), an armature component (11), a spring (10), an armature pipe (8), a pole shoe (6) and a top cover (5), wherein the nozzle (13) is riveted at one end of the valve body (12); the coil cover (9) and the valve body (12) are fixed by pressing and opening closing; the coil component (7) is positioned in the coil cover (9); the armature component (11), the spring (10), the armature pipe (8), the pole shoe (6) and the top cover (5) are arranged in an inner hole of the coil component; the top cover (5) is riveted with the outer end of the pole shoe (6). The large-flow pneumatic double-electromagnetic-valve part disclosed by the invention has the advantages of large flow, low start voltage, good leakproofness, high reliability and the like and is matched with a pneumatic AMT gearbox system, so the Chinese independent automobiles can be integrated with international markets.

Description

technical field [0001] The invention relates to a pneumatic AMT gearbox solenoid valve, in particular to a large-flow pneumatic double solenoid valve used in a pneumatic AMT gearbox, and belongs to the technical field of auto parts. Background technique [0002] From the perspective of the history of automobile development, driving comfort, maneuverability, power and economy are the main factors that automobiles need to consider. With the continuous development of my country's AMT technology level, AMT gearboxes for improving driving comfort have been gradually installed on large vehicles, and have passed a large number of test verifications. Pneumatic AMT large vehicles have good power and economy . As the control valve of the pneumatic AMT gearbox, the solenoid valve controls the high and low gear switching of the gearbox. Its quality directly determines the comfort, controllability, power and economy of the car performance, and its importance is self-evident. [0003] At...

AI Technical Summary

Problems solved by technology

[0003] At present, the battery valves of pneumatic AMT gearboxes used in automobiles are all single-valve structures, which have the following disadvantages: first, the gas flow aperture is small, resulting in small flow, which is easy to cause throttling; second, the electromagnetic force decreases with the stroke And increase, that is, the electromagnetic force is inversely proportional to the stroke. The wear of the parts during use will cause the solenoid valve stroke to become larger. When the solenoid valve stroke is large, the starting voltage is too high, which will cause the gasket of the solenoid valve armature assembly to be crushed, affecting The performance and service life of the solenoid valve; third, the metal contact between the intake section, the control section and the exhaust section has large wear and poor corrosion resistance, resulting in poor sealing, low reliability, and short service life; Fourth, impurities are not treated at the air inlet, and impurities are easy to enter the solenoid valve, affecting the normal operation of the solenoid valve; Fifth, in order to ensure the required flow rate, the solenoid valve requires high machining accuracy and complicated processes, resulting in high production costs

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