CN207583747U - OCV valve hydraulic oil path test systems - Google Patents
OCV valve hydraulic oil path test systems Download PDFInfo
- Publication number
- CN207583747U CN207583747U CN201721510998.5U CN201721510998U CN207583747U CN 207583747 U CN207583747 U CN 207583747U CN 201721510998 U CN201721510998 U CN 201721510998U CN 207583747 U CN207583747 U CN 207583747U
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- Prior art keywords
- oil
- hydraulic
- reserve tank
- fuel reserve
- valve
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Abstract
The utility model provides a kind of OCV valves hydraulic oil path test system, including fuel reserve tank, oil transfer pump and test oil circuit, it tests on the pipeline of oil circuit and oil-way switching apparatus and OCV valves is installed, fuel reserve tank connects oil transfer pump, oil transfer pump connects oil-way switching apparatus, oil-way switching apparatus connects OCV valves and fuel reserve tank respectively, and hydraulic oil is transported to test oil circuit by fuel reserve tank through oil transfer pump；The hydraulic oil of pressure qualification can be transported to OCV valves and be tested or return to the hydraulic oil of superpressure in fuel reserve tank by oil-way switching apparatus；Temperature control equipment is equipped in fuel reserve tank；Multiple overflow valves, ball valve and corresponding oil return line are equipped in test loop.The utility model provides stable oil pressure and oil temperature to OCV valves, ensure that the Stability and veracity of OCV valve performances test system；Closed-loop control is carried out, more accurately controls the parameters in hydraulic circuit.
Description
Technical field
The utility model belongs to OCV valve test technical fields, and in particular to a kind of OCV valves hydraulic oil path test system.
Background technology
OCV Oil Control Valve (abbreviation OCV valves) is a kind of four-way DC electromagnetic valve, including main oil inlet P, work oil inlet A,
Work four oil return opening B, main oil return inlet T interfaces, mainly by pwm signal interface, iron core, coil, valve body (including spool) and bullet
Spring forms, and coil moves iron core using electromagnetic force, and iron core is connected with spool, and iron core movement will be slided with movable valve plug, spool
Slip is opened and closed oil circuit, so as to control oil inlet and oil return.OCV valves are mainly used for VVT engines, and effect is by before OCV valves
It moves that machine oil is controlled to enter the grease chamber in advance of VVT or delay grease chamber afterwards, camshaft is made to move certain angle to provide oil pressure, from
And engine valve in different load is made to reach best time opened or closed and angle, make Fuel Economy
It greatly improves.Its performance test system is studied to detect the OCV valves met the requirements, there is the great meaning for controlling its product qualification rate
Justice.
The performance test of OCV valves can be used the mode of hydraulic circuit, test request is as follows：(1) during no power, valve
P mouthfuls communicate with B mouthfuls, and A mouthfuls lead to oil discharge outlet T；(2) when signal dutyfactor is 0%PWM, direction of engine oil flow：P->B, A->T, phase
Position device locking；(3) when signal dutyfactor is 100%PWM, direction of engine oil flow：P->A, B->T, phaser unlock.Its test step
It is rapid mainly to include static properties experiment and dynamic performance experiment.
First, static properties experiment includes：(1) Rapid Circulation；(2) discharge characteristic is tested；(3) oil pressure I-P characteristic tests, tool
Body requirement is as follows：
(1) Rapid Circulation
P mouthfuls of 4.0 ± 0.1Bar, AB mouthfuls of oil pressure connect, T mouthfuls of logical air, form the oil circuit of circulation.
It is required that：Cycle-index and working frequency are adjusted.
(2) discharge characteristic is tested
AB mouthfuls of connections, T mouthfuls of logical air.Drive signal：PWM；PWM frequency：135-180Hz；PWM duty cycle：0-100%；
P-T mouthfuls of pressure differences:4±0.1Bar；Test oil temperature：40±2℃；Machine oil model：Tellus 22.
(3) oil pressure I-P characteristic tests
A mouthfuls keep the aperture of diameter 6mm connect between the two with B mouthfuls, and break-make is controlled by switch valve, T mouthful of oil extraction and greatly
Gas connects.Drive signal：Pwm signal；Signal frequency range：135±10Hz；Duty ratio：0-100%；P-T mouthfuls of pressure differences:4±
0.1Bar；Test oil temperature：40±2℃；Machine oil model：Tellus 22.
2nd, dynamic performance experiment require be：A mouthfuls are connected with B mouthfuls, T mouthfuls of oil extraction is led to air, drive signal：PWM believes
Number；PWM frequency：135-180Hz；PWM duty cycle：0-100%；P-T mouthfuls of pressure differences：4±0.1Bar；Test oil temperature：40±2℃；
Machine oil model：Tellus 22.
It needs to remain P-T mouthfuls of pressure differences and oil temperature stabilization in setting value, existing OCV valves hydraulic test in test process
Middle parameter monitoring and hydraulic circuit adjusting are relative complex, and particularly test loop pressure stationarity is poor, and oil temperature supplying is also inadequate
Stablize, it is impossible to the pressure in test oil circuit and temperature accurately be controlled well, affect OCV valve performances test knot
The accuracy of fruit.
Therefore, the pressure and oil temperature for being badly in need of a kind of test loop are stablized, the OCV valves that Parameter adjustable simultaneously can be monitored accurately in real time
Hydraulic oil path test system.
Utility model content
The purpose of this utility model is to provide a kind of OCV valves hydraulic oil path test system, the pressure stability of test loop
And can accurately monitor in real time, work smoothness are good, and test result is accurate.
The utility model provides following technical solution：
A kind of OCV valves hydraulic oil path test system, including fuel reserve tank, oil transfer pump and test oil circuit, the test oil circuit
Oil-way switching apparatus and OCV valves are installed, the fuel reserve tank connects oil transfer pump, and the oil transfer pump connects the oil circuit and cuts on pipeline
Changing device, the oil-way switching apparatus connect the OCV valves and the fuel reserve tank respectively, and hydraulic oil is as described in passing through the fuel reserve tank
Oil transfer pump is transported to the test oil circuit；The hydraulic oil of pressure qualification can be transported to the OCV valves by the oil-way switching apparatus
It is tested or is returned to the hydraulic oil of superpressure in the fuel reserve tank, the oil-way switching apparatus includes hydraulic backpressure valve
With gas proportioning valve, the hydraulic backpressure valve is installed on the pipeline of the OCV valve inlets end leading portion, the gas ratio valve
Outlet connects the hydraulic backpressure valve；The test oil circuit further includes the 5th oil return line, and the hydraulic backpressure valve is also connected with institute
The 5th oil return line is stated, the 5th oil return line connects the fuel reserve tank.
Preferably, the OCV valves include main oil inlet P, work oil inlet A, work oil return opening B and main oil return inlet T, described
Test oil circuit further includes the 4th oil return line, and the hydraulic backpressure valve connects the main oil inlet P, the main oil return inlet T connection
4th oil return line, the 4th oil return line connect the fuel reserve tank.
Preferably, the entrance of the main oil inlet P is equipped with P mouthfuls of pressure sensors, the work oil inlet A, the work
A shared AB mouth pressure sensor is installed in oil return opening B junctions, and the outlet of the main oil return inlet T is equipped with T mouthfuls of pressure sensings
Device.
Preferably, flow sensor is installed on the pipeline between the OCV valves and the oil-way switching apparatus.
Preferably, hydraulic pump, cooler and heater, the oil outlet connection liquid of the fuel reserve tank are equipped in the fuel reserve tank
Press pump, the hydraulic pump connect the cooler, and the cooler connects the heater, and the heater passes through pipeline and institute
Fuel reserve tank connection is stated, thermometer and liquid level gauge are also equipped in the fuel reserve tank.
Preferably, the pipeline between the hydraulic pump and the cooler is equipped with the first overflow valve, first overflow
Valve is connected with the first oil return line, and first oil return line connects the fuel reserve tank.
Preferably, it is also equipped with hydraulic oil coarse filter on the pipeline between the heater and the fuel reserve tank.
Preferably, the second overflow valve, the second overflow valve connection are equipped between the oil transfer pump and the test oil circuit
There is the second oil return line, second oil return line connects the fuel reserve tank.
Preferably, hydraulic oil fine filter, institute are also equipped on the pipeline between the oil transfer pump and the test oil circuit
It states hydraulic oil fine filter and is set to the second overflow valve back segment.
Preferably, ball valve is also equipped on the pipeline between the hydraulic oil fine filter and the test oil circuit, it is described
Ball valve is connected with third oil return line, and the third oil return line connects the fuel reserve tank.
The beneficial effects of the utility model are：
1st, during OCV valve tests, by being equipped with the oil-way switching apparatus of gas ratio valve and hydraulic backpressure valve, make test oil circuit
Stable pressure is provided to OCV valves, ensure that the Stability and veracity of OCV valve performances test system.Closed-loop control is carried out, more
Accurately control the parameters in hydraulic circuit.
2nd, by setting the controls such as the first to the 5th oil return line and corresponding overflow valve, hydraulic backpressure valve and ball valve
Oil circuit pressure makes entire test oil road direction OCV valves provide stable pressure, ensures that pressure test conditions have good stabilization
Property, flexibility and accuracy.
3rd, to OCV valves the pressure monitoring of each oil circuit entrance, to fuel reserve tank into trip temperature and level monitoring, it is intuitive to adjust simultaneously
Monitor hydraulic fluid pressure, oil temperature and the fuel reserve tank liquid level in hydraulic circuit.
The 4th, hydraulic oil coarse filter and hydraulic oil fine filter are set, the hydraulic oil in pipeline is filtered step by step, avoids oil
Road blocks, and further improves the pressure controllable of test oil circuit.
Description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
Novel embodiment for explaining the utility model, does not form the limitation to the utility model together.In the accompanying drawings：
Fig. 1 is the oil channel structures schematic diagram of the utility model；
Fig. 2 is the enlarged diagram of C portion in the utility model Fig. 1；
Fig. 3 is the enlarged diagram of ball valve in the utility model Fig. 1.
In figure label for：1. fuel reserve tank；11. hydraulic pump；12. cooler；13. heater；14. thermometer；15. liquid level
Meter；16. the first overflow valve；17. the first oil return line；18. hydraulic oil coarse filter；2. oil transfer pump；3. test oil circuit；31. oil
Circuit switching device；311. hydraulic backpressure valves；312. gas ratio valves；32.OCV valves；321.P mouthfuls of pressure sensors；322.AB mouth
Pressure sensor；323.T mouthfuls of pressure sensors；33. the 5th oil return line；34. the 4th oil return line；35. flow sensor；4.
Second overflow valve；5. the second oil return line；6. hydraulic oil fine filter；7. ball valve；8. third oil return line.
Specific embodiment
As shown in Figure 1, a kind of OCV valves hydraulic oil path test system, including fuel reserve tank 1, oil transfer pump 2 and test oil circuit 3, is surveyed
Oil-way switching apparatus 31 and OCV valves 32 are installed, the fuel reserve tank 1 connects oil transfer pump 2, and oil transfer pump 2 connects on the pipeline on formation testing road 3
Oil-way switching apparatus 31 is connect, oil-way switching apparatus 31 connects OCV valves 32 and fuel reserve tank 1 respectively, and hydraulic oil is by fuel reserve tank 1 through oil transportation
Pump 2 is transported to test oil circuit 3；Oil-way switching apparatus 31 hydraulic oil of pressure qualification can be transported to OCV valves 32 tested or
Person returns to the hydraulic oil of superpressure in fuel reserve tank 1, and oil-way switching apparatus 31 includes hydraulic backpressure valve 311 and gas proportioning valve
312, hydraulic backpressure valve 311 is installed on the pipeline of 32 arrival end leading portion of OCV valves, the outlet connection hydraulic pressure of gas ratio valve 312
Counterbalance valve 311；Test oil circuit 3 further includes the 5th oil return line 33, and the outlet of hydraulic backpressure valve 311 connects the 5th oil return line
33, the 5th oil return line 33 connection fuel reserve tank 1.Requirement pressure is constant when OCV valves 32 are tested, and gas ratio valve 312 is continuous, stablizes
Ground controls hydraulic backpressure valve 311, so as to the pressure of oil circuit on indirect control test oil circuit 3, when pressure exceeds survey in test oil circuit 3
During pressure testing power, the hydraulic oil of superpressure part is returned to through the 5th oil return pipe 33 in fuel reserve tank 1, and the hydraulic oil of pressure qualification enters OCV
It is tested for the property inside valve 32.By the oil-way switching apparatus for being equipped with gas ratio valve 311 and hydraulic backpressure valve 312
31, stable pressure is provided to OCV valves 32, ensure that the Stability and veracity of 32 Performance Test System of OCV valves.
Preferably, as depicted in figs. 1 and 2, the OCV valves 32 include main oil inlet P, work oil inlet A, work oil return opening
B and main oil return inlet T, test oil circuit 3 further include the 4th oil return line 34, and hydraulic backpressure valve 311 connects main oil inlet P, main oil return
The 4th oil return line 34 of mouth T connections, the 4th oil return line 34 connection fuel reserve tank 1.The hydraulic oil of pressure qualification enters main oil inlet
P arrives work oil inlet A or work oil return opening B after flowing through 32 inside of OCV valves, main oil return inlet T is entered back into, through the 4th oil return pipe
Road 34 returns to fuel reserve tank 1.
Preferably, as depicted in figs. 1 and 2, the entrance of the main oil inlet P is equipped with P mouthfuls of pressure sensors 321, the work
Make oil inlet A, a shared AB mouths pressure sensor 322, the main oil return of the OCV valves are installed in work oil return opening B junctions
Mouth T outlets are equipped with T mouthfuls of pressure sensors 323.P mouthfuls of pressure sensors 321, AB mouthfuls of pressure sensors 322 and T mouthfuls of pressure sensors
323 can intuitively adjust and monitor the hydraulic fluid pressure in hydraulic circuit.
Preferably, flow sensor 35 is installed on the pipeline between the OCV valves 32 and the oil-way switching apparatus 31,
Monitoring, if hydraulic fluid flow rate is less than normal, needs timely shutdown inspection system into the hydraulic fluid flow rate of OCV valves 32 in real time.
Preferably, hydraulic pump 11, cooler 12 and heater 13 are equipped in the fuel reserve tank 1, the oil outlet of fuel reserve tank 1 connects
Hydraulic pump 11 is connect, hydraulic pump 11 connects cooler 12, and cooler 12 connects heater 13, and heater 13 passes through pipeline and fuel reserve tank
1 connects, and thermometer 14 and liquid level gauge 15 are also equipped in fuel reserve tank 1.Hydraulic oil is conveyed into cooler 12 and is added through hydraulic pump 11
Hot device 13 controls oil temperature, then again returns in fuel reserve tank 1, and thermometer 14 and liquid level gauge 15 monitor fuel reserve tank 1 in real time
Interior oil temperature and liquid level ensures to meet test condition to the hydraulic oil oil temperature that test oil circuit 3 provides.
Preferably, the pipeline between the hydraulic pump 11 and the cooler 12 is equipped with the first overflow valve 16, and described the
One overflow valve 16 is connected with the first oil return line 17, the first oil return line 17 connection fuel reserve tank 1.During to hydraulic oil temperature control, work as liquid
The hydraulic oil pipeline pressure that press pump 11 conveys is larger, and hydraulic oil is returned to oil storage by the first overflow valve 16 through the first oil return line 17
In case 1；If moderate pressure, hydraulic oil enters cooler 12 and heater 13, and hydraulic oil is carried out to cool and heat control.The
One overflow valve 16 steadily controls the pressure of 1 inner oil tube of fuel reserve tank, and oil temperature is enable smoothly to be controlled.
Preferably, it is also equipped with hydraulic oil coarse filter 18 on the pipeline after heater 13.Hydraulic oil through supercooling and
After heating, carry out coarse filtration through hydraulic oil coarse filter 18 and return fuel reserve tank 1, improve the hydraulic oil into test oil circuit 3
Purity.
Preferably, the second overflow valve 4 is equipped between oil transfer pump 2 and test oil circuit 3, the second overflow valve 4 is connected with second time
Oil pipe line 5, the second oil return line 5 connection fuel reserve tank 1.Hydraulic oil after excess temperature controls is sent into test oil circuit by oil transfer pump 2
3, if test oil circuit pressure is excessive, returned in fuel reserve tank 1 by the second oil return line 5 through the second overflow valve 4；If pressure is fitted
In, then enter test oil circuit 3.Second overflow valve 4 steadily control fuel reserve tank 1 and test oil circuit 3 between oil pressure, smoothly to
It tests oil circuit 3 and conveys hydraulic oil.
Preferably, hydraulic oil fine filter 6, hydraulic pressure olein mistake are installed on the pipeline between oil transfer pump 2 and test oil circuit 3
Filter 6 is set to 4 back segment of the second overflow valve.The hydraulic oil of suitable oil temperature is after the second overflow valve 4 controls oil pressure, through hydraulic oil
Fine filter 6 carries out essence filtering and is transported to test oil circuit 3 again, further improves the hydraulic oil purity into test oil circuit 3, protects
The unimpeded of pipeline and the pressure stablized are demonstrate,proved.
Preferably, as shown in figures 1 and 3, it is also equipped on the pipeline between hydraulic oil fine filter 6 and test oil circuit 3
Ball valve 7, ball valve 7 are connected with third oil return line 8, and third oil return line 8 connects fuel reserve tank 1.As shown in Figure 1 and Figure 3, it is described
Ball valve 7 is two five logical FESTO ball valves, and hydraulic oil is controlled through ball valve 7, it is desirable that ball valve 7 enters No. 3 mouths of oil circuit connection during test
Oil circuit 3 is tested, No. 2 mouths of oil circuit connection are returned into fuel reserve tank 1 through third oil return line 8 when not testing, FESTO ball valves are by No. 1 gas
Ball valve realizes oil circuit switching at the top of the in-let dimple of road.Working condition and off working state can be switched in two five-way ball valves, increases
The flexibility of test and reliability.
The utility model is also applied for the solenoid valve hydraulic circuit test of other similar structures.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, although ginseng
The utility model is described in detail according to previous embodiment, it for those skilled in the art, still can be with
It modifies to the technical solution recorded in foregoing embodiments or equivalent replacement is carried out to which part technical characteristic.It is all
Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this practicality
Within novel protection domain.
Claims (10)
1.OCV valve hydraulic oil path test systems, including fuel reserve tank, oil transfer pump and test oil circuit, which is characterized in that the test oil
Oil-way switching apparatus and OCV valves are installed, the fuel reserve tank connects oil transfer pump, and the oil transfer pump connects the oil on the pipeline on road
Circuit switching device, the oil-way switching apparatus connect the OCV valves and the fuel reserve tank respectively, and hydraulic oil is passed through by the fuel reserve tank
The oil transfer pump is transported to the test oil circuit；The hydraulic oil of pressure qualification can be transported to described by the oil-way switching apparatus
OCV valves are tested or are returned to the hydraulic oil of superpressure in the fuel reserve tank, and the oil-way switching apparatus includes hydraulic pressure and carries on the back
Pressure valve and gas proportioning valve, the hydraulic backpressure valve are installed on the pipeline of the OCV valve inlets end leading portion, the gas ratio
The outlet of valve connects the hydraulic backpressure valve；The test oil circuit further includes the 5th oil return line, and the hydraulic backpressure valve also connects
The 5th oil return line is connect, the 5th oil return line connects the fuel reserve tank.
2. OCV valves hydraulic oil path test system according to claim 1, which is characterized in that the OCV valves include main oil inlet
Mouth P, work oil inlet A, work oil return opening B and main oil return inlet T, the test oil circuit further include the 4th oil return line, the liquid
Counterbalance valve is pressed to connect the main oil inlet P, the main oil return inlet T connects the 4th oil return line, the 4th oil return line
Connect the fuel reserve tank.
3. OCV valves hydraulic oil path test system according to claim 2, which is characterized in that the entrance of the main oil inlet P
Equipped with P mouthfuls of pressure sensors, a shared AB mouth pressure is installed in the work oil inlet A, the work oil return opening B junctions
Sensor, the outlet of the main oil return inlet T are equipped with T mouthfuls of pressure sensors.
4. OCV valves hydraulic oil path test system according to claim 1, which is characterized in that the OCV valves and the oil circuit
Flow sensor is installed on pipeline between switching device.
5. OCV valves hydraulic oil path test system according to claim 1, which is characterized in that liquid is equipped in the fuel reserve tank
Press pump, cooler and heater, the oil outlet connection hydraulic pump of the fuel reserve tank, the hydraulic pump connect the cooler, institute
It states cooler and connects the heater, the heater is connect with the fuel reserve tank by pipeline, also installed in the fuel reserve tank
There are thermometer and liquid level gauge.
6. OCV valves hydraulic oil path test system according to claim 5, which is characterized in that the hydraulic pump with it is described cold
But the pipeline between device is equipped with the first overflow valve, and first overflow valve is connected with the first oil return line, first oil return
Pipeline connects the fuel reserve tank.
7. OCV valves hydraulic oil path test system according to claim 5, which is characterized in that the heater and the storage
Hydraulic oil coarse filter is also equipped on pipeline between fuel tank.
8. OCV valves hydraulic oil path test system according to claim 1, which is characterized in that the oil transfer pump and the survey
The second overflow valve is equipped between formation testing road, second overflow valve is connected with the second oil return line, and second oil return line connects
Connect the fuel reserve tank.
9. OCV valves hydraulic oil path test system according to claim 8, which is characterized in that the oil transfer pump and the survey
Hydraulic oil fine filter is also equipped on pipeline between formation testing road, the hydraulic oil fine filter is set to second overflow
Valve back segment.
10. OCV valves hydraulic oil path test system according to claim 9, which is characterized in that the hydraulic oil fine filter
Ball valve is also equipped on pipeline between the test oil circuit, the ball valve is connected with third oil return line, and the third is returned
Oil pipe line connects the fuel reserve tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721510998.5U CN207583747U (en) | 2017-11-13 | 2017-11-13 | OCV valve hydraulic oil path test systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721510998.5U CN207583747U (en) | 2017-11-13 | 2017-11-13 | OCV valve hydraulic oil path test systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207583747U true CN207583747U (en) | 2018-07-06 |
Family
ID=62731544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721510998.5U Expired - Fee Related CN207583747U (en) | 2017-11-13 | 2017-11-13 | OCV valve hydraulic oil path test systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207583747U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443716A (en) * | 2018-09-30 | 2019-03-08 | 儒拉玛特自动化技术(苏州)有限公司 | Hydraulic pressure testing device |
| CN112160951A (en) * | 2020-06-29 | 2021-01-01 | 武汉船用机械有限责任公司 | Test system of hydraulic valve |
-
2017
- 2017-11-13 CN CN201721510998.5U patent/CN207583747U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443716A (en) * | 2018-09-30 | 2019-03-08 | 儒拉玛特自动化技术(苏州)有限公司 | Hydraulic pressure testing device |
| CN112160951A (en) * | 2020-06-29 | 2021-01-01 | 武汉船用机械有限责任公司 | Test system of hydraulic valve |
| CN112160951B (en) * | 2020-06-29 | 2022-08-05 | 武汉船用机械有限责任公司 | Test system of hydraulic valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180706 Termination date: 20181113 |