A hydraulic valve performance testing experimental system
A test experiment and hydraulic valve technology, which is applied in the direction of mechanical valve test, fluid tightness test, fluid pressure actuation system components, etc., can solve the problem of large pressure pulsation, unable to meet the pressure and flow characteristic test requirements of hydraulic valves, and load regulation issues such as narrow scope
Active Publication Date: 2022-01-07
HARBIN INST OF TECH
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Problems solved by technology
[0003] The present invention aims to solve the existing problems of large pressure pulsation and narrow load adjustment range when testing the performance of hydraulic valves, which cannot meet the testing requirements of hydraulic valve pressure and flow characteristics, and proposes a hydraulic valve performance test experiment system
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specific Embodiment approach 1
[0043] Specific implementation mode one: the following combination figure 1 with figure 2Describe this embodiment, a hydraulic valve performance test experimental system described in this embodiment includes a variable hydraulic pump 2, a check valve 4, a first proportional relief valve 5, a first two-position three-way electromagnetic reversing valve 13, The second proportional overflow valve 15, the second two-position three-way electromagnetic reversing valve 16, the first double-acting hydraulic cylinder 17, the second double-acting hydraulic cylinder 18, the two-position four-way electromagnetic reversing valve 19, the third proportional overflow Flow valve 20, quantitative hydraulic pump 22, oil tank 24, valve plate, measurement and control system and data acquisition unit;
[0044] The liquid inlet of variable hydraulic pump 2 communicates with oil tank 24, and the liquid outlet communicates with the liquid inlet of valve plate, and described valve plate is used for i...
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The utility model relates to a hydraulic valve performance testing experimental system, which belongs to the technical field of hydraulic valve performance testing. The present invention solves the problems that the pressure pulsation is large during the pressure flow test, the load adjustment range is narrow, and the pressure and flow characteristic test requirements of the hydraulic valve cannot be met. The present invention eliminates the influence of the pressure pulsation on the performance measurement of the hydraulic valve by reducing the pressure pulsation of the variable variable hydraulic pump. The control realizes the measurement of the flow in a large range, and realizes the precise loading of the hydraulic valve in a large range through the load loading system, and realizes the accurate measurement of the pressure characteristics of the hydraulic valve by controlling the change of the output pressure of the pump through the proportional relief valve. The invention is suitable for use in measuring hydraulic valves.
Description
technical field [0001] The invention belongs to the technical field of hydraulic valve performance testing. Background technique [0002] The hydraulic system is widely used in various mechanical equipment due to its many advantages such as high power density, compact structure, flexible component layout, and high control precision. The hydraulic valve is an important control element in the hydraulic system, and its performance directly affects the static and dynamic performance of the hydraulic system, so it is very important to test the performance of the hydraulic valve. The traditional hydraulic valve performance test bench has a large pressure pulsation and a narrow load adjustment range during the pressure flow test, which cannot meet the pressure and flow characteristic test requirements of the hydraulic valve. Contents of the invention [0003] The present invention aims to solve the existing problems of large pressure pulsation and narrow load adjustment range wh...
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IPC IPC(8): F15B11/17F15B11/028F15B19/00F15B21/00F15B21/041G01M3/28G01M13/003
CPCF15B11/17F15B11/028F15B19/00F15B21/008F15B21/041G01M13/003G01M3/2876F15B2211/20576F15B2211/20538F15B2211/20546F15B2211/315
Inventor 张健罗念宁姜继海
Owner HARBIN INST OF TECH