CN105971975B - A kind of valve element of heavy traffic load control valve surges force test system and method for testing - Google Patents
A kind of valve element of heavy traffic load control valve surges force test system and method for testing Download PDFInfo
- Publication number
- CN105971975B CN105971975B CN201610329589.9A CN201610329589A CN105971975B CN 105971975 B CN105971975 B CN 105971975B CN 201610329589 A CN201610329589 A CN 201610329589A CN 105971975 B CN105971975 B CN 105971975B
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- Prior art keywords
- valve element
- valve
- vibration damping
- connecting rod
- heavy traffic
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- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title abstract description 11
- 238000013016 damping Methods 0.000 claims abstract description 31
- 238000006073 displacement reaction Methods 0.000 claims abstract description 15
- 238000005259 measurement Methods 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 230000002153 concerted effect Effects 0.000 claims abstract description 5
- 239000002828 fuel tank Substances 0.000 claims description 8
- 238000010998 test method Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 21
- 230000000694 effects Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Surged force test system and method for testing the invention discloses a kind of valve element of heavy traffic load control valve.Valve element is arranged in the centre bore of valve inner, valve element is formed with valve body and is slidably matched, valve element the inner is coaxially connected through vibration damping tail connecting rod and vibration damping tail, valve element outer end is connected through sensor connecting rod with pull pressure sensor one end, pull pressure sensor is connected by screw thread with manual displacement platform, and pull pressure sensor is used to measure the suffered F that makes a concerted effort of valve element；Valve body is provided with load hydraulic fluid port and oil return opening, loads hydraulic fluid port and oil return opening is connected to gather recycle muzzle pressure p measurement oil circuit component；Pass through the F and pressure p calculating acquisition hydraulic power Y that makes a concerted effort.The present invention can complete the test of the valve element hydraulic power to heavy traffic load control valve in the case of different valve element apertures, different flow, and the valve element hydraulic power of heavy traffic load control valve can be drawn by valve element aperture, the rule influenceed by the flow, vibration damping tail length of connecting rod, vibration damping tail diameter of valve body on factors such as valve elements.
Description
Technical field
The present invention relates to hydraulic valve test system, more particularly, to a kind of valve element hydraulic power of heavy traffic load control valve
Test system and method for testing.
Background technology
In the hydraulic system that heavy traffic load control valve is generally used for having Exceed load, balanced load pressure is played, and
Control the effect of the flow for the hydraulic oil that oil sources is flowed back to from load.
The valve element of heavy traffic load control valve typically uses unilateral non-all-round opening form, is often surged by larger
Power acts on, and at present in the design of load control valve, often ignores the effect of hydraulic power or is surged using empirical equation estimation
The size of power.Yet with the special shape of valve element, ignore and the method for formula estimation hydraulic power all controls to heavy traffic load
The control of valve core brings larger error.There is presently no the valve element hydraulic power testing standard for formulating heavy traffic load control valve
And method, the research of associated test system are more not deployed.In view of this, lacked in the prior art it is a kind of can be to heavy traffic load
The test system that control valve core hydraulic power is completely tested.
The content of the invention
In order to realize the valve element hydraulic power test problem of heavy traffic load control valve, the invention provides a kind of big flow to bear
The valve element for carrying control valve surges force test system and method for testing, can complete to the valve element hydraulic power of heavy traffic load control valve
Complete test, has highly important practical meaning in engineering.
The technical solution adopted by the present invention is：
First, a kind of valve element of heavy traffic load control valve surges force test system：
Including valve body, valve element, vibration damping tail connecting rod, vibration damping tail, sensor connecting rod, pull pressure sensor, manual displacement platform
With measurement oil circuit component, valve element is arranged in the centre bore of valve inner, and valve element is formed with valve body and is slidably matched, the inner warp of valve element
Vibration damping tail connecting rod and vibration damping tail are coaxially connected, and valve element outer end is connected through sensor connecting rod with pull pressure sensor one end, pressure
The sensor other end is connected by screw thread with manual displacement platform；Valve body is provided with load hydraulic fluid port and oil return opening, load hydraulic fluid port and
Oil return opening is connected to gather recycle muzzle pressure p measurement oil circuit component, measurement oil circuit component connection fuel tank.
Described measurement oil circuit component includes pressure transmitter, flowmeter, variable pump, data collecting card and computer, becomes
The inlet port of amount pump is connected with fuel tank, and the oil-out of variable pump is connected by hydraulic tube with load hydraulic fluid port, and oil return opening passes through hydraulic pressure
Connected after pipe through flowmeter with fuel tank；Oil return opening connects pressure transmitter, pressure transmitter, flowmeter and pull pressure sensor
The input port of data output and data collecting card is connected, and data collecting card is arranged on the slot of computer motherboard, and data are adopted
The delivery outlet of truck is connected with variable pump.
Described valve element is inner to be connected through a screw thread with vibration damping tail connecting rod one end, the vibration damping tail connecting rod other end by screw thread and
Vibration damping tail connects.
Described valve element outer end is connected by screw thread with sensor connecting rod one end, the sensor connecting rod other end by screw thread with
Pull pressure sensor one end connects.
Pass through the aperture of the manual displacement platform accurate adjustment valve element.
2nd, a kind of valve element of heavy traffic load control valve surges force test method：
By the axial movement of the manual displacement platform adjusting spool, accurate adjustment valve element passes through in the aperture of valve body
The suffered F that makes a concerted effort of pull pressure sensor measurement valve element, by the pressure p of the oil return opening of pressure transmitter measurement valve body, is then calculated
Hydraulic power Y is obtained, computer controls output oil mass according to hydraulic power Y by data acquisition card control variable pump.
Described hydraulic power Y is calculated using below equation：
Y=F+p × S
Wherein, S represents spool sectional area.
The invention has the advantages that：
The valve element of heavy traffic load control valve disclosed by the invention surges force test system, can complete to open in different valve elements
Degree, the test in the case of different flow to the valve element hydraulic power of heavy traffic load control valve, and heavy traffic load control can be drawn
The valve element hydraulic power of valve by valve element aperture, by the flow, vibration damping tail length of connecting rod, vibration damping tail diameter of valve body to factors such as valve elements
The rule of influence.
Brief description of the drawings
Fig. 1 is the schematic diagram of the present invention.
In figure：1st, valve body, 2, valve element, 3, vibration damping tail connecting rod, 4, vibration damping tail, 5, sensor connecting rod, 6, pull pressure sensor,
7th, manual displacement platform, 8, pressure transmitter, 9, flowmeter, 10, variable pump, 11, data collecting card, 12, computer, 13, oil
Case.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As shown in figure 1, the present invention includes valve body 1, valve element 2, vibration damping tail connecting rod 3, vibration damping tail 4, sensor connecting rod 5, tension and compression
Force snesor 6, manual displacement platform 7 and measurement oil circuit component, valve element 2 be arranged on valve body 1 inside centre bore in, valve element 2 and
Valve body 1 is formed and is slidably matched, and valve element 2 is inner to be connected through a screw thread with the one end of vibration damping tail connecting rod 3, and the other end of vibration damping tail connecting rod 3 leads to
Cross screw thread to be connected with vibration damping tail 4, the outer end of valve element 2 is connected by screw thread with the one end of sensor connecting rod 5, the other end of sensor connecting rod 5
It is connected by screw thread with the one end of pull pressure sensor 6, the other end of pull pressure sensor 6 is connected by screw thread and manual displacement platform 7
Connect, pull pressure sensor 6 is used for the aperture for measuring valve element 2 suffered make a concerted effort F, manually the accurate adjustment valve element 2 of displacement platform 7.
Valve body 1 is provided with load hydraulic fluid port B and oil return opening A, and load hydraulic fluid port B and oil return opening A is connected to gather oil return opening pressure
Power p measurement oil circuit component, measurement oil circuit component include pressure transmitter 8, flowmeter 9, variable pump 10, the and of data collecting card 11
Computer 12, the inlet port of variable pump 10 are connected with fuel tank 13, and the oil-out of variable pump 10 is connected by hydraulic tube and load hydraulic fluid port B
Logical, by being connected after hydraulic tube through flowmeter 9 with fuel tank 13, flowmeter 9 is used to measure the stream by load control valve oil return opening A
Amount；Oil return opening A connections pressure transmitter 8, pressure transmitter 8 measure recycle muzzle pressure p, pressure transmitter 8, flowmeter 9 and drawing
The data output of pressure sensor 6 is connected with the input port of data collecting card 11, and data collecting card 11 is arranged on computer 12
On the slot of mainboard, data collecting card 11 is by the data input computer 12 measured, the delivery outlet of data collecting card 11 and change
Amount pump 10 is connected, and the flow of hydraulic oil is provided for regulated variable pump 10.
The embodiment of the present invention and its specific test job process are as follows：
Manual displacement platform 7 is adjusted first, valve element 2 is opened to certain aperture, then opens variable pump 10, and pass through meter
Calculation machine regulated variable pumpage, make to reach designated value by the hydraulic fluid flow rate of valve body 1, computer 12 passes through data collecting card 11
Gather suffered by the valve element 2 measured by the oil return opening A of the valve body 1 measured by pressure transmitter 8 pressure p and pull pressure sensor 6
F with joint efforts, it is known that spool sectional area S, then hydraulic power suffered by this flow bottom spool 2 of this aperture size Y=F+p × S.Regulated variable
The discharge capacity of pump 10 makes to change by the flow of valve body 1, then when different flow under this aperture can be measured according to above method, the institute of valve element 2
By the size of hydraulic power.
Regulation manual displacement platform 7 makes valve element 2 be opened to different opening, then different opening difference can be measured according to above method
During flow, the size of hydraulic power suffered by valve element 2.
After drawing data above, then hydraulic power size suffered by valve element 2 and the aperture of valve element 2 and the stream by valve body 1 can be drawn
Relation between amount.
Change the length l of vibration damping tail connecting rod 3, repeat to test above, then the length of vibration damping tail connecting rod 3 can be drawn to the institute of valve element 2
By the affecting laws of hydraulic power.
Change the diameter d of vibration damping tail 4, repeat to test above, then the diameter of vibration damping tail 4 can be drawn to being surged suffered by valve element 2
The affecting laws of power.
Thus, the present invention can be completed in the case of different valve element apertures, different flow to heavy traffic load control valve
The test of valve element hydraulic power, and the rule of factor influence is obtained, there is prominent significant technique effect.
Claims (6)
- The force test system 1. a kind of valve element of heavy traffic load control valve surges, it is characterised in that：Including valve body (1), valve element (2), vibration damping tail connecting rod (3), vibration damping tail (4), sensor connecting rod (5), pull pressure sensor (6), manual displacement platform (7) and survey Gauging road component, valve element (2) are arranged in the internal centre bore of valve body (1), and valve element (2) is formed with valve body (1) and is slidably matched, valve Core (2) is inner coaxially connected through vibration damping tail connecting rod (3) and vibration damping tail (4), and valve element (2) outer end is through sensor connecting rod (5) and tension and compression Force snesor (6) one end is connected, and pull pressure sensor (6) other end is connected by screw thread with manual displacement platform (7)；Valve body (1) load hydraulic fluid port (B) and oil return opening (A) are provided with, load hydraulic fluid port (B) and oil return opening (A) are connected to gather recycle muzzle pressure p Measurement oil circuit component, measurement oil circuit component connection fuel tank (13)；Described measurement oil circuit component include pressure transmitter (8), flowmeter (9), variable pump (10), data collecting card (11) and Computer (12), the inlet port of variable pump (10) are connected with fuel tank (13), and the oil-out of variable pump (10) by hydraulic tube and is born Hydraulic fluid port (B) connection is carried, oil return opening (A) through flowmeter (9) after hydraulic tube with fuel tank (13) by connecting；Oil return opening (A) connection pressure Power transmitter (8), the data output and data collecting card of pressure transmitter (8), flowmeter (9) and pull pressure sensor (6) (11) input port connection, data collecting card (11) are arranged on the slot of computer (12) mainboard, data collecting card (11) Delivery outlet is connected with variable pump (10).
- The force test system 2. a kind of valve element of heavy traffic load control valve according to claim 1 surges, it is characterised in that： Described valve element (2) is inner to be connected through a screw thread with vibration damping tail connecting rod (3) one end, and vibration damping tail connecting rod (3) other end passes through screw thread It is connected with vibration damping tail (4).
- The force test system 3. a kind of valve element of heavy traffic load control valve according to claim 1 surges, it is characterised in that： Described valve element (2) outer end is connected by screw thread with sensor connecting rod (5) one end, and sensor connecting rod (5) other end passes through screw thread It is connected with pull pressure sensor (6) one end.
- The force test system 4. a kind of valve element of heavy traffic load control valve according to claim 1 surges, it is characterised in that： Pass through the aperture of manual displacement platform (7) the accurate adjustment valve element (2).
- The force test method 5. a kind of valve element of heavy traffic load control valve surges, it is characterised in that：Appointed using Claims 1 to 4 One test system, by the axial movement of manual displacement platform (7) adjusting spool (2), accurate adjustment valve element (2) exists The aperture of valve body (1), the suffered F that makes a concerted effort of valve element (2) is measured by pull pressure sensor (6), valve is measured by pressure transmitter (8) The pressure p of the oil return opening (A) of body (1), then calculate and obtain hydraulic power Y, computer (12) passes through data acquisition according to hydraulic power Y Block (11) control variable pump (10) control output oil mass.
- The force test method 6. a kind of valve element of heavy traffic load control valve according to claim 5 surges, it is characterised in that： Described hydraulic power Y is calculated using below equation：Y=F+p × SWherein, S represents valve element (2) sectional area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610329589.9A CN105971975B (en) | 2016-05-18 | 2016-05-18 | A kind of valve element of heavy traffic load control valve surges force test system and method for testing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610329589.9A CN105971975B (en) | 2016-05-18 | 2016-05-18 | A kind of valve element of heavy traffic load control valve surges force test system and method for testing |
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| Publication Number | Publication Date |
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| CN105971975A CN105971975A (en) | 2016-09-28 |
| CN105971975B true CN105971975B (en) | 2017-11-14 |
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| CN201610329589.9A Active CN105971975B (en) | 2016-05-18 | 2016-05-18 | A kind of valve element of heavy traffic load control valve surges force test system and method for testing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106015149B (en) * | 2016-08-08 | 2017-09-29 | 浙江大学 | The vibration damping stern construction eliminated for the reverse hydraulic power of unilateral valve core of the spool valve |
| CN112179531A (en) * | 2020-08-21 | 2021-01-05 | 蚌埠恒远传感器科技有限公司 | S-shaped pull pressure sensor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0417852Y2 (en) * | 1985-01-24 | 1992-04-21 | ||
| US6912479B2 (en) * | 2002-12-26 | 2005-06-28 | Volvo Construction Equipment Holding Sweden Ab | Heavy equipment having oil pollution degree diagnosing function, and oil pollution degree measuring system on network using the same, and operation method |
| JP4707717B2 (en) * | 2004-11-19 | 2011-06-22 | フェスト アクツィエンゲゼルシャフト ウント コー | Diagnostic device for at least one pneumatic valve actuator device |
| CN102954057B (en) * | 2012-11-22 | 2015-08-19 | 太原理工大学 | The threeway proportional pressure-reducing valve of electricity closed loop control |
| CN203979007U (en) * | 2014-05-30 | 2014-12-03 | 杰锋汽车动力系统股份有限公司 | A kind of proportional electromagnetic valve Flow characteristics testing apparatus |
| CN204610394U (en) * | 2015-05-14 | 2015-09-02 | 中国飞机强度研究所 | A kind of hydraulic substation |
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