Shift valve performance testing device for multi-gear transmission
A technology for testing devices and shift valves, which is applied in measuring devices, mechanical valve tests, fluid tightness tests, etc., can solve problems such as low efficiency and low detection accuracy, and achieve the effects of shortening test time and saving test costs
Active Publication Date: 2019-01-11
CHANGAN UNIV
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Problems solved by technology
[0005] The purpose of the present invention is to provide a multi-gear transmission shift valve performance testing device, which solves the problems of low detection accuracy and low efficiency in the manual item-by-item detection of shift valve performance in the prior art. Performance detection efficiency and accuracy
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[0041] The present invention is described in further detail below in conjunction with accompanying drawing:
[0042] see Figure 1-2 , the present invention provides a multi-gear transmission shift valve performance testing device, including an air source processing unit 1 and a workpiece airtight flow detection unit 3;
[0043] The workpiece airtight flow detection unit 3 includes a first flow sensor 3-1, a first solenoid valve 3-2, a gas distribution block 8-3 and a first muffler 3-3; the first flow sensor 3-1 passes through the first The electromagnetic valve 3-2 is connected with the S port air path of the gas distribution block 8-3, and the first muffler 3-3 is connected with the E port of the gas distribution block 8-3.
[0044] Here, the functions of each component are: the first flow sensor 3-1 is used to detect the air tightness of the shift valve 3-4, the first solenoid valve 3-2 is used to control the on-off of the air circuit, the first muffler 3- 3 It is used to e...
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The invention discloses a shift valve performance testing device for a multi-gear transmission, which comprises a gas source processing unit and a workpiece airtightness flow detecting unit. A first flow sensor of the workpiece airtightness flow detecting unit is connected with an S-port gas circuit of a gas dividing block through a first electromagnetic valve; a first silencer is connected with an E port of the gas dividing block; a second flow sensor is connected with a P-port gas circuit of the gas dividing block through a second electromagnetic valve and a third electromagnetic valve, sequentially; the P port of the gas dividing block is further connected with a fourth electromagnetic valve gas circuit; the fourth electromagnetic valve is connected with a second silencer; the S port, the P port and the E port of the gas dividing block are respectively connected with the S port, the P port and the E port of a shift valve through a gas inlet pipe; and a gas source is respectively connected with a first flow sensor and a second flow sensor through a first pressure regulating valve. The shift valve performance testing device for a multi-gear transmission in the invention can improve the performance detecting efficiency and accuracy of the shift valve and has the advantages of simple structure, simple operations and low cost.
Description
technical field [0001] The invention belongs to the technical field of testing equipment for control components of automobile gearboxes, and in particular relates to a performance testing device for shift valves of multi-gear transmissions. Background technique [0002] With the rapid development of the commercial vehicle industry, multi-gear transmission is an important development trend, and the shift valve is an important component of the multi-gear transmission control system. The shift valve is used to realize the conversion of high and low gears of the transmission, and its performance directly affects the driving safety of the car. [0003] At present, the shift valve performance detection in this field generally adopts the form of manual detection of workpieces one by one by means of smearing. This quality inspection method has shortcomings such as low detection accuracy, low efficiency, and low degree of automation, and cannot meet the needs of modern industry. ...
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Login to View More IPC IPC(8): G01M13/003G01M17/007G01M3/28
CPCG01M3/2876G01M13/00G01M17/007
Inventor 郭万金胡志新杨国虎朱雅光耿麒杨通
Owner CHANGAN UNIV