Pneumatic shift solenoid valve integrated characteristic test device and test method

Abstract

The invention discloses a pneumatic shift solenoid valve integrated characteristic test device and test method. The pneumatic shift solenoid valve integrated characteristic test device comprises an experiment table; a gas supply mechanism is arranged on the experiment table; a clamp is also arranged on the experiment table; a first tested valve and a second tested valve are fixed to the clamp; theclamp comprises a base which is fixed to the experiment table; a first internal gas pipe is arranged in the base; both a first positioning stepped hole and a second positioning stepped hole communicate with the first internal gas pipe; a plurality of sensor interfaces and flow meter interfaces which communicate with the first internal gas pipe are formed in the base; the base is connected with afirst pressure sensor and a second pressure sensor through the sensor interfaces; and the base is connected with a first flow meter and a second flow meter through the flow meter interfaces. The pneumatic shift solenoid valve integrated characteristic test device and test method can test two types of solenoid valves simultaneously, and has the characteristics of simple design and layout, low costand wide applicability; in addition, frequent manual operation is not required, so that the test effect is good.

Description

technical field [0001] The invention relates to the technical field of detection and measurement of electromagnetic valve characteristics, in particular to a comprehensive characteristic testing device and a testing method for a pneumatic shift solenoid valve. Background technique [0002] The shift pneumatic solenoid valve in the vehicle gearbox is used as the actuator of its shift system. During the operation of the gearbox system, the requirements for the working characteristics of the pneumatic solenoid valve are often extremely high. If the characteristics of the pneumatic solenoid valve do not meet the requirements, the working performance of the gearbox will be affected, and in severe cases, the vehicle will malfunction. Therefore, this type of solenoid valve has always had very strict production requirements, and at the same time, the test of its comprehensive characteristics is also very important. [0003] Generally, when conducting comprehensive characteristic te...

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Problems solved by technology

[0003] Generally, when conducting comprehensive characteristic tests of pneumatic solenoid valves, the traditional test method is to build corresponding test systems for the characteristics of solenoid valves and conduct corresponding characteristic tests respectively. This method is difficult to operate, and it is necessary to switch tests when testing different characteristics. The system and the system platform are cumbersome to build, and it is necessary to manually control the valve under test frequently, which is easily affected by external conditions, has a high error coefficient, is often time-consuming and laborious, and is extremely prone to failure during the test process. The test function is single and has great limitations. sex

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