Device and detection method for reliability test of multiple solenoid valves at the same time
A detection method and solenoid valve technology, applied in the field of hydraulic drive, can solve the problems of low detection efficiency, large detection flow rate, large volume of hydraulic station, etc., and achieve the effect of reducing test time and energy consumption
Active Publication Date: 2019-09-24
CHINA FIRST AUTOMOBILE
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Problems solved by technology
[0005] The problem to be solved in the present invention is to provide a system that can make the flow rate of each stage system not exceed a single valve to be tested in order to solve the problems of low detection efficiency one by one in the above-mentioned prior art, large flow rate and large volume of the hydraulic station when multiple detections are performed together. The maximum flow rate, and the pressure at both ends of each tested valve before opening is equal to the test pressure, and the flow rate of each solenoid valve when it is opened meets the test requirements. The device and its detection method that can simultaneously conduct reliability tests on multiple solenoid valves
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[0043] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.
[0044] In the accompanying drawings, 1 is the test device bracket, 2 is the solenoid valve seat, 4 is the fuel tank, 6 is the PWM signal generator, 8 is the solenoid valve to be tested, 9 is the hydraulic station, 10 is the control valve, and 11 is the valve to be tested Ⅰ, 12 is the tested valve II, 13 is the tested valve III, 14 is the tested valve IV, 15 is the actuator I, 16 is the actuator II, 17 is the actuator III, and 18 is the actuator IV.
[0045] Such as figure 2 As shown, the device that can conduct reliability tests on multiple solenoid valves at the same time includes a hydraulic station, a control valve and a solenoid valve to be tested. The s...
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The invention discloses a device capable of performing simultaneous reliability test on multiple electromagnetic valves and a detection method thereof. The device comprises a hydraulic station, a control valve and electromagnetic valves to be tested. The electromagnetic valves to be tested are on-off valves or reversing valves, and there are four electromagnetic valves to be tested at most. Compared with the devices in the prior art, the device has the beneficial effects that there are four electromagnetic valves at most for the simultaneous test through the specific electromagnetic valve hydraulic channel connection mode and specific electromagnetic valve on / off state control without enhancing the flow supply capacity of the hydraulic station in comparison with the test device for testing one electromagnetic valve so that the flow of the system is enabled not to exceed the maximum flow of a single tested valve in each stage, the pressure of the two ends of each tested valve before turning on is enabled to be equal to the test pressure, the turn-on flow of each electromagnetic valve is enabled to meet the test requirements and thus the test time and energy consumption can be substantially reduced.
Description
technical field [0001] The invention belongs to the field of hydraulic drive, and relates to a device capable of performing reliability tests on a plurality of solenoid valves at the same time and a detection method thereof. Background technique [0002] The reliability test of solenoid valve usually takes a long time, and the efficiency is low if the test is carried out one by one. The existing solenoid valve reliability test device usually improves the efficiency by testing several solenoid valves in series or in parallel at the same time. When the solenoid valve is opened, since there are several hydraulic channels conducting at the same time, the hydraulic oil flow required by the system will be several times that of a solenoid valve. When testing, a hydraulic station with a large flow supply capacity must be selected, otherwise the opening cannot be guaranteed. At the same time, each solenoid valve has a flow rate that meets the test requirements, which will increase th...
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IPC IPC(8): G01M13/003G01R31/327
Inventor 樊荣王吉华陆玲亚薛芹余
Owner CHINA FIRST AUTOMOBILE