A gearbox suction filter performance testing system
A testing system and filter technology, applied in the testing of machine/structural components, instruments, measuring devices, etc., can solve problems such as poor ease of use, limited temperature adjustment range, and low versatility
Active Publication Date: 2017-01-25
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Problems solved by technology
[0007] It can be seen from the above that in the prior art, independent test systems are used for testing each performance parameter, and the versatility of each test system is low, and the convenience of use is poor. In addition, the working temperature range of the automatic transmission is about -40°C to 140°C , while the temperature regulating device in the existing system is a simple heat exchanger, which directly uses the cooling water to exchange heat with the oil in the test system, the temperature regulation range is limited, and performance testing under a wide range of temperatures cannot be realized
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[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the solution will be further described in detail below in conjunction with specific embodiments.
[0035] Such as Figure 4 and Figure 5As shown, the gearbox suction filter performance test system provided by the present invention includes a pollutant injection unit a, a test unit b, a temperature control unit c and an oil circuit d which are sequentially connected in series on the test oil circuit and form a circulation circuit.
[0036] The pollutant injection unit a is used to configure the standard oil to be tested, including the first oil tank 1, the hydraulic pump 2, the flow control valve 3, the throttle valve 4, the first system filter 5 and the oil Detection device 6.
[0037] Wherein, the hydraulic pump 2 provides power for the circuit oil supply of the system, the flow control valve 3 regulates and controls the flow of the oil circuit, and the ...
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The invention relates to the technical field of performance testing of filters, and discloses a performance testing system for a suction filter of a speed changing box. The performance testing system comprises a pollutant injection unit, a testing unit, a temperature control unit and an oil loop which are connected on a testing oil line in series in sequence and form a circulation loop; testing temperature can be kept at a constant value by the temperature control unit so as to test filtration efficiency, and the testing temperature can also be adjusted, and therefore testing on flow pressure drop performance is realized; moreover, a two-position two-way normally open solenoid valve is arranged in the testing unit; a pulse signal is applied to the two-position two-way normally open solenoid valve, so that filtration efficiency testing under pulse flow can be realized; the testing system is high in universality and convenient in use; moreover, the temperature control unit is additionally arranged; compared with a simple heat exchanger in the prior art, the performance testing system is high in temperature adjustment precision and wide in control range, and is capable of realizing the performance testing of the filter within a wider temperature range.
Description
technical field [0001] The invention relates to the technical field of filter performance testing, in particular to a transmission suction filter performance testing system. Background technique [0002] In the automatic transmission, the suction filter is located between the oil pan and the oil pump. The oil filtered by the suction filter is used for the control of the hydraulic system in the automatic transmission and the lubrication of the gear shaft system. If the oil cannot meet the requirements of the hydraulic system for the cleanliness of the oil, it will accelerate the wear of the gears and bearings or cause the solenoid valve to stick, thus affecting the life and normal operation of the gearbox. In order to ensure that the suction filter can work stably and efficiently in the gearbox, it is necessary to test and verify the performance index of the designed suction filter. [0003] The performance test of the suction filter mainly includes the filtration efficiency...
Claims
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IPC IPC(8): G01M99/00
Inventor 温华明
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD