CN201636132U - Hydraulic device for servo valve testing system - Google Patents
Hydraulic device for servo valve testing system Download PDFInfo
- Publication number
- CN201636132U CN201636132U CN2010201494294U CN201020149429U CN201636132U CN 201636132 U CN201636132 U CN 201636132U CN 2010201494294 U CN2010201494294 U CN 2010201494294U CN 201020149429 U CN201020149429 U CN 201020149429U CN 201636132 U CN201636132 U CN 201636132U
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- 238000012360 testing method Methods 0.000 title claims abstract description 42
- 239000003921 oil Substances 0.000 claims abstract description 272
- 238000005086 pumping Methods 0.000 claims abstract description 23
- 230000003068 static effect Effects 0.000 claims abstract description 15
- 239000002828 fuel tank Substances 0.000 claims description 30
- 238000009434 installation Methods 0.000 claims description 16
- 239000011230 binding agent Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 4
- 239000000295 fuel oil Substances 0.000 claims description 2
- 239000000346 nonvolatile oil Substances 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a hydraulic device for a servo valve testing system, which consists of a main oil passage, a control oil circuit and an oil pumping passage that are driven respectively by three motors as well as three linked oil pumps. In the device, an inserting valve is used as an oil passage shifting and controlling valve for the first time; the main oil passage is automatically shifted as a dynamic oil passage and a fixed oil passage by the inserting valve group; and the full-automatic one-off test on the static performances and dynamic performances of an electro-hydraulic servo valve can be realized, the testing efficiency of the electro-hydraulic servo valve can be improved, the accuracy of the testing result is increased, and the whole testing method strictly complies with the testing standard GB/T15623-1995 of the electro-hydraulic servo valve to complete various detecting tests of the servo valve.
Description
Technical field
The utility model relates to the hydraulic pressure installation of servo valve test system.
Background technique
Because the high-precision of electrohydraulic control and the key position in electrohydraulic servo-controlling system, the detection of servovalve are for the performance index that guarantee servovalve and guarantee that accurate, quick, the stable work of electrohydraulic servo system has important meaning.Every electrohydraulic control must carry out the strictness test to its parameter through various instrument before use, and whether check feature reaches relevant index, could guarantee the normal operation of servo-system like this.According to the quiet dynamic characteristic test requirement of electrohydraulic control, system is divided into static characteristic test and dynamic characteristic test two-part.Electrohydraulic control load flow characteristic, no load discharge characteristic, Pressure characteristics, internal leakage characteristic test are mainly finished in the static characteristic test; Dynamic characteristic test is mainly finished electrohydraulic control transient response and frequency response test.
Present domestic and international existing servo valve test system is all tested static properties oil circuit and is separated with the dynamic performance testing oil circuit; need be during test with the dismounting and change in two oil circuits of the tested servovalve in the hydraulic pressure installation; not only need to shut down, and easily cause oil circuit to pollute and the hydraulic oil loss.
The model utility content
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, a kind of hydraulic pressure installation of servo valve test system being provided.
For achieving the above object, the utility model adopts following technical proposals:
A kind of hydraulic pressure installation of servo valve test system comprises working connection, control oil channel and oil pumping oil circuit, and described working connection, control oil channel and oil pumping oil circuit connect three table oil pumps by three motors respectively and drive; Described working connection automatically switches to dynamic oil circuit and static oil circuit by the cartridge valve group.
Described working connection comprises basic oil circuit, static oil circuit and dynamic oil circuit, wherein:
The basis oil circuit comprises working connection oil suction oil purifier, working connection oil pump, working connection filter-press, one-way valve I, working connection safety overflow valve, cooler, the oil return oil purifier that connects successively, and the oil return oil purifier connects with fuel tank;
Static oil circuit comprises working connection oil suction oil purifier, working connection oil pump, working connection filter-press, the one-way valve I that connects successively, one-way valve I connects with the P mouth of tested servovalve, the A mouth of tested servovalve connects with the cartridge valve group, the cartridge valve group connects successively with proportional flow control valve, flowmeter, cartridge valve group, tested servovalve B mouth, tested servovalve T mouth, cartridge valve group, oil return stop valve, cooler, oil return oil purifier, and the oil return oil purifier connects with fuel tank;
Dynamically oil circuit comprises working connection oil suction oil purifier, working connection oil pump, working connection filter-press, the one-way valve I that connects successively, one-way valve I connects with the P mouth of tested servovalve, tested servovalve A mouth connects with the cartridge valve group, the cartridge valve group connects with chamber, a dynamic oil cylinder left side, dynamically right cavity of cylinder connects with the cartridge valve group, the cartridge valve group connects with tested servovalve B mouth, tested servovalve T mouth connects with the cartridge valve group, the cartridge valve group connects successively with oil return stop valve, cooler, oil return oil purifier, and the oil return oil purifier connects with fuel tank.
Described control oil channel comprises: control basic oil circuit, servovalve pilot stage oil circuit, cartridge valve valve pilot stage oil circuit three parts; Wherein:
Control basic oil circuit and comprise that the control oil channel oil suction oil purifier, control oil channel oil pump, control oil channel filter-press, one-way valve II, control oil channel safety overflow valve, cooler, the oil return oil purifier that connect successively connect successively, the oil return oil purifier connects with fuel tank;
Servovalve pilot stage oil circuit comprises control oil channel oil suction oil purifier, control oil channel oil pump, control oil channel filter-press, one-way valve II, series flow control valve, stop valve I, the tested servovalve X mouth that connects successively, and tested servovalve Y mouth directly returns fuel tank through stop valve II;
Cartridge valve valve pilot stage oil circuit comprises control oil channel oil suction oil purifier, control oil channel oil pump, control oil channel filter-press, cartridge valve pilot stage solenoid valve P mouth, cartridge valve pilot stage solenoid valve, cartridge valve pilot stage solenoid valve T mouth, the cartridge valve pilot stage solenoid valve T mouth connected tank then that connects successively.
Described oil pumping oil circuit comprises oil pumping road oil suction oil purifier, the oil pumping road binders pump that connects successively, and oil pumping road oil suction oil purifier connects with fuel tank, and oil pumping road binders pump connects with the recovery fuel tank.
Described working connection filter-press also connects with an accumulator, is provided with an accumulator between described working connection safety overflow valve and described oil return stop valve.
Described fuel tank is provided with the fuel tank drain tap, and level meter and liquid thermometer and air-strainer are installed.
Adopt cartridge valve as the oil circuit switching control valve in this hydraulic pressure installation first, static, dynamic oil circuit automaticallyes switch, can realize the full-automatic disposable test of electrohydraulic control static properties and dynamic performance, improve the efficient of electro-hydraulic servo valve test, increase the degree of accuracy of test result, whole test method strictness is finished every detection test of servovalve according to the testing standard GB/T15623-1995 of electrohydraulic control.
Description of drawings
The hydraulic pressure installation oil channel structures figure of Fig. 1 servo valve test system
Wherein, 1-displacement transducer; 2-dynamically oil cylinders; 3-velocity transducer; 4-proportional flow control valve; 5-flowmeter; 6-cartridge valve group; 7-pressure transducer; 8-measuring cup; 9-tested servovalve; 10-proportional pressure control valve; 11-series flow control valve; 12-oil return stop valve; 13-recovery fuel tank; 14-working connection safety overflow valve; 15-accumulator; 16-control oil channel oil filter press; 17-control oil channel oil pump; 18-control oil channel oil suction oil purifier; 19-working connection oil filter press; 20-working connection oil pump; 21-working connection oil suction oil purifier; 22-cooler; 23-oil return oil purifier; 24-level meter; 25-air-strainer; 26-liquid thermometer; 27-oil pumping road binders pump; 28-oil pumping road oil suction oil purifier; 29-fuel tank; 30-fuel tank drain tap; 31-one-way valve I; 32-one-way valve II; 33-control oil circuit safety overflow valve; 34-cartridge valve pilot stage solenoid valve; 35-stop valve I; 36-stop valve II.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Among Fig. 1, the working connection of the hydraulic pressure installation of servo valve test system automatically switches to dynamic oil circuit and static oil circuit by cartridge valve group 6, also is provided with the dynamic oil cylinder 2 that tested servovalve 9 is detected usefulness in hydraulic pressure installation.This system can finish the every detection test among the GB/T15623-1995 (electrohydraulic control test method), as partially zero and drift test, internal leakage test, no load discharge test, flow load pressure drop test, transient response test etc.
Among Fig. 1, hydraulic pressure installation comprises working connection, control oil channel and oil pumping oil circuit, and they connect with corresponding three table oil pumps respectively and drive oil circulation, wherein,
Working connection comprises basic oil circuit, static oil circuit and dynamic oil circuit:
The basis oil circuit comprises working connection oil suction oil purifier 21, working connection oil pump 20, working connection filter-press 19, one-way valve I31, working connection safety overflow valve 14, cooler 22, the oil return oil purifier 23 that connects successively, and oil return oil purifier 23 connects with fuel tank 29;
Static oil circuit comprises working connection oil suction oil purifier 21, working connection oil pump 20, working connection filter-press 19, the one-way valve I31 that connects successively, one-way valve I31 connects with the P mouth of tested servovalve 9, the A mouth of tested servovalve 9 connects with cartridge valve group 6, cartridge valve group 6 connects successively with B mouth, the T mouth of tested servovalve 9, cartridge valve group 6, oil return stop valve 12, cooler 22, the oil return oil purifier 23 of proportional flow control valve 4, flowmeter 5, cartridge valve group 6, tested servovalve 9, and oil return oil purifier 23 connects with fuel tank 29;
Dynamically oil circuit comprises the working connection oil suction oil purifier 21 that connects successively, working connection oil pump 20, working connection filter-press 19, one-way valve I31, one-way valve I31 connects with the P mouth of tested servovalve 9, the A mouth of tested servovalve 9 connects with cartridge valve group 6, cartridge valve group 6 connects with dynamic oil cylinder 2 left chambeies, dynamically oil cylinder 2 right chambeies connect with cartridge valve group 6, cartridge valve group 6 connects with the B mouth of tested servovalve 9, the T mouth of tested servovalve 9 connects with cartridge valve group 6, cartridge valve group 6 and oil return stop valve 12, cooler 22, oil return oil purifier 23 connects successively, and oil return oil purifier 23 connects with fuel tank 29;
Working connection filter-press 19 also connects with an accumulator 15, and 12 of working connection safety overflow valve 14 and oil return stop valves are provided with another accumulator 15;
Described control oil channel comprises: control basic oil circuit, servovalve pilot stage oil circuit, cartridge valve valve pilot stage oil circuit three parts; Wherein, control basic oil circuit and comprise that the control oil channel oil suction oil purifier 18, control oil channel oil pump 17, control oil channel filter-press 16, one-way valve II32, control oil channel safety overflow valve 33, cooler 22, the oil return oil purifier 23 that connect successively connect successively, oil return oil purifier 23 connects with fuel tank 29;
Servovalve pilot stage oil circuit comprises successively the X mouth of the control oil channel oil suction oil purifier 18 that connects, control oil channel oil pump 17, control oil channel filter-press 16, one-way valve II32, series flow control valve 11, stop valve I35, tested servovalve 9, and the Y mouth of tested servovalve 9 directly returns fuel tank 29 through stop valve II36;
Cartridge valve valve pilot stage oil circuit comprises control oil channel oil suction oil purifier 18, control oil channel oil pump 17, control oil channel filter-press 16, cartridge valve pilot stage solenoid valve 34P mouth, cartridge valve pilot stage solenoid valve 34, the cartridge valve pilot stage solenoid valve 34T mouth that connects successively, and cartridge valve pilot stage solenoid valve 34T mouth connected tank 29 then;
Described oil pumping oil circuit comprises oil pumping road oil suction oil purifier 28, the oil pumping road binders pump 27 that connects successively, and oil pumping road oil suction oil purifier 28 connects with fuel tank 29, and oil pumping road binders pump 27 connects with recovery fuel tank 13;
Fuel tank 29 is provided with fuel tank drain tap 30, and level meter 24 and liquid thermometer 26 and air-strainer 25 are installed.
Claims (6)
1. the hydraulic pressure installation of a servo valve test system comprises working connection, control oil channel and oil pumping oil circuit, it is characterized in that, described working connection, control oil channel and oil pumping oil circuit connect three table oil pumps by three motors respectively and drive; Described working connection automatically switches to dynamic oil circuit and static oil circuit by the cartridge valve group.
2. the hydraulic pressure installation of servo valve test system as claimed in claim 1 is characterized in that, described working connection comprises basic oil circuit, static oil circuit and dynamic oil circuit, wherein:
The basis oil circuit comprises working connection oil suction oil purifier, working connection oil pump, working connection filter-press, one-way valve I, working connection safety overflow valve, cooler, the oil return oil purifier that connects successively, and the oil return oil purifier connects with fuel tank;
Static oil circuit comprises working connection oil suction oil purifier, working connection oil pump, working connection filter-press, the one-way valve I that connects successively, one-way valve I connects with the P mouth of tested servovalve, the A mouth of tested servovalve connects with the cartridge valve group, the cartridge valve group connects successively with proportional flow control valve, flowmeter, cartridge valve group, tested servovalve B mouth, tested servovalve T mouth, cartridge valve group, oil return stop valve, cooler, oil return oil purifier, and the oil return oil purifier connects with fuel tank;
Dynamically oil circuit comprises working connection oil suction oil purifier, working connection oil pump, working connection filter-press, the one-way valve I that connects successively, one-way valve I connects with the P mouth of tested servovalve, tested servovalve A mouth connects with the cartridge valve group, the cartridge valve group connects with chamber, a dynamic oil cylinder left side, dynamically right cavity of cylinder connects with the cartridge valve group, the cartridge valve group connects with tested servovalve B mouth, tested servovalve T mouth connects with the cartridge valve group, the cartridge valve group connects successively with oil return stop valve, cooler, oil return oil purifier, and the oil return oil purifier connects with fuel tank.
3. the hydraulic pressure installation of a kind of servo valve test system as claimed in claim 1 is characterized in that, described control oil channel comprises: control basic oil circuit, servovalve pilot stage oil circuit, cartridge valve valve pilot stage oil circuit three parts; Wherein:
Control basic oil circuit and comprise that the control oil channel oil suction oil purifier, control oil channel oil pump, control oil channel filter-press, one-way valve II, control oil channel safety overflow valve, cooler, the oil return oil purifier that connect successively connect successively, the oil return oil purifier connects with fuel tank;
Servovalve pilot stage oil circuit comprises control oil channel oil suction oil purifier, control oil channel oil pump, control oil channel filter-press, one-way valve II, series flow control valve, stop valve I, the tested servovalve X mouth that connects successively, and tested servovalve Y mouth directly returns fuel tank through stop valve II;
Cartridge valve valve pilot stage oil circuit comprises control oil channel oil suction oil purifier, control oil channel oil pump, control oil channel filter-press, cartridge valve pilot stage solenoid valve P mouth, cartridge valve pilot stage solenoid valve, cartridge valve pilot stage solenoid valve T mouth, the cartridge valve pilot stage solenoid valve T mouth connected tank then that connects successively.
4. the hydraulic pressure installation of servo valve test system as claimed in claim 1, it is characterized in that, described oil pumping oil circuit comprises oil pumping road oil suction oil purifier, the oil pumping road binders pump that connects successively, and oil pumping road oil suction oil purifier connects with fuel tank, and oil pumping road binders pump connects with the recovery fuel tank.
5. the hydraulic pressure installation of servo valve test system as claimed in claim 2 is characterized in that, described working connection filter-press also connects with an accumulator, is provided with an accumulator between described working connection safety overflow valve and described oil return stop valve.
6. as the hydraulic pressure installation of claim 2 or 4 or 5 described servo valve test systems, it is characterized in that described fuel tank is provided with the fuel tank drain tap, and level meter and liquid thermometer and air-strainer are installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201494294U CN201636132U (en) | 2010-04-02 | 2010-04-02 | Hydraulic device for servo valve testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201494294U CN201636132U (en) | 2010-04-02 | 2010-04-02 | Hydraulic device for servo valve testing system |
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| Publication Number | Publication Date |
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| CN201636132U true CN201636132U (en) | 2010-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201494294U Expired - Lifetime CN201636132U (en) | 2010-04-02 | 2010-04-02 | Hydraulic device for servo valve testing system |
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| CN (1) | CN201636132U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297181A (en) * | 2010-11-18 | 2011-12-28 | 重庆大学 | Hydraulic control loop of automatic transmission hydraulic system performance test bed |
| CN105545878A (en) * | 2016-01-27 | 2016-05-04 | 武汉科技大学 | Transient-pressure oil supply system for multi-way valve test stand |
| CN106197569A (en) * | 2016-09-05 | 2016-12-07 | 安徽理工大学 | The hydraulic system of a kind of high-pressure gear effusion meter comprehensive characteristic test device and experimental technique |
| CN106609784A (en) * | 2015-10-21 | 2017-05-03 | 北京精密机电控制设备研究所 | Valve element micrometric displacement testing device |
| CN107165877A (en) * | 2017-06-14 | 2017-09-15 | 燕山大学 | A kind of big orifice extra-high voltage liquid proportional inserted valve dynamic performance and testing |
| CN107725506A (en) * | 2017-10-23 | 2018-02-23 | 天津世仓工业设备有限公司 | A kind of numerical control press electrohydraulic servo-controlling system |
| CN108708887A (en) * | 2018-07-19 | 2018-10-26 | 上海衡拓液压控制技术有限公司 | The servo valve testing stand of energy-saving and noise-reducing |
| CN109667812A (en) * | 2019-02-21 | 2019-04-23 | 北京凯德福液压技术有限公司 | A kind of proportioning valve and servo valve testboard |
-
2010
- 2010-04-02 CN CN2010201494294U patent/CN201636132U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297181B (en) * | 2010-11-18 | 2014-02-12 | 重庆大学 | Hydraulic control loop of automatic transmission hydraulic system performance test bed |
| CN102297181A (en) * | 2010-11-18 | 2011-12-28 | 重庆大学 | Hydraulic control loop of automatic transmission hydraulic system performance test bed |
| CN106609784B (en) * | 2015-10-21 | 2018-07-27 | 北京精密机电控制设备研究所 | A kind of spool micro displacement testing device |
| CN106609784A (en) * | 2015-10-21 | 2017-05-03 | 北京精密机电控制设备研究所 | Valve element micrometric displacement testing device |
| CN105545878A (en) * | 2016-01-27 | 2016-05-04 | 武汉科技大学 | Transient-pressure oil supply system for multi-way valve test stand |
| CN106197569A (en) * | 2016-09-05 | 2016-12-07 | 安徽理工大学 | The hydraulic system of a kind of high-pressure gear effusion meter comprehensive characteristic test device and experimental technique |
| CN107165877A (en) * | 2017-06-14 | 2017-09-15 | 燕山大学 | A kind of big orifice extra-high voltage liquid proportional inserted valve dynamic performance and testing |
| CN107165877B (en) * | 2017-06-14 | 2018-07-27 | 燕山大学 | A kind of big orifice extra-high voltage liquid proportional inserted valve dynamic performance and testing |
| CN107725506A (en) * | 2017-10-23 | 2018-02-23 | 天津世仓工业设备有限公司 | A kind of numerical control press electrohydraulic servo-controlling system |
| CN108708887A (en) * | 2018-07-19 | 2018-10-26 | 上海衡拓液压控制技术有限公司 | The servo valve testing stand of energy-saving and noise-reducing |
| CN108708887B (en) * | 2018-07-19 | 2023-09-05 | 上海衡拓液压控制技术有限公司 | Servo valve test bed capable of saving energy and reducing noise |
| CN109667812A (en) * | 2019-02-21 | 2019-04-23 | 北京凯德福液压技术有限公司 | A kind of proportioning valve and servo valve testboard |
| CN109667812B (en) * | 2019-02-21 | 2021-01-01 | 北京凯德福液压技术有限公司 | Proportional valve and servo valve test bench |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20130311 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130311 Address after: 250002, No. 560, South Second Ring Road, Shizhong District, Shandong, Ji'nan Patentee after: Shandong Research Inst. of Electric Power Patentee after: State Grid Corporation of China Address before: 250002, No. 560, South Second Ring Road, Shizhong District, Shandong, Ji'nan Patentee before: Shandong Research Inst. of Electric Power |
|
| CX01 | Expiry of patent term |
Granted publication date: 20101117 |
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| CX01 | Expiry of patent term |