CN207195362U - A kind of multifunction valve body hydraulic test system - Google Patents
A kind of multifunction valve body hydraulic test system Download PDFInfo
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- CN207195362U CN207195362U CN201721127045.0U CN201721127045U CN207195362U CN 207195362 U CN207195362 U CN 207195362U CN 201721127045 U CN201721127045 U CN 201721127045U CN 207195362 U CN207195362 U CN 207195362U
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Abstract
The utility model discloses a kind of multifunction valve body hydraulic test system, more particularly to valve body detecting system field, including fuel tank, fuel tank is connected with the first hydraulic pump and flow speed control valve, flow speed control valve is connected with electromagnetism test valve and ratio test valve simultaneously, electromagnetism tests valve and ratio test valve is connected with the first two position three-way valve and the second two position three-way valve simultaneously, first two position three-way valve and the second two position three-way valve are connected with test cylinder both ends, ratio test valve is also associated with load testing module, it is provided with loading stand and loading cylinder of the test cylinder to top, fuel tank is connected with the second hydraulic pump and three-position four-way valve, three-position four-way valve is connected with loading cylinder.The utility model can carry out different detections, the variation of test to different valve bodies, while not interfere with each other in valve body detection process, ensure the precision of detection, and the power of test of synthesization make it that test is quicker, convenient, cost is low, applied widely.
Description
Technical field
Valve body detecting system field is the utility model is related to, more specifically, it relates to which a kind of multifunction valve body hydraulic pressure is surveyed
Test system.
Background technology
After hydraulic technique is widely popularized, the possibility to break down also increases therewith, during tracing trouble, not only needs ripe
Practice technical staff, while also need to perfect detection device.Due to the invisibility inside hydraulic system, it is necessary to which testing equipment enters
Row test, current testing equipment is mostly the single hydraulic test bench of performance, and is typically all experimenter's range estimation in testing
Record, test data are inaccurate.
In view of the above-mentioned problems, patent announcement number is CN204783953U Chinese patent, it is proposed that a kind of magnetic valve and liquid
The synthesis energy saving experimental rig of cylinder pressure reliability, including hydraulic pump, hydraulic pump are connected with the first check valve, and the first check valve goes out
Hydraulic fluid port connects force feed filter and overflow valve respectively, and the oil-out for pressing oil filter connects two magnetic valves and hydraulic cylinder test mould respectively
Block and accumulator package.
Above-mentioned patent can only carry out single performance test to single valve body, and a hydraulic system is by multiple different types of
Valve body forms, once hydraulic system failure, usually needs to detect the technical indicator of a variety of different Hydraulic Elements, can just be diagnosed to be
The position and the root of generation that failure occurs.In order to avoid interfering, detection process is that single valve body is carried out alone, this
Hydraulic test bench with regard to needing more set single performances, will certainly correspondingly improve testing cost.
Utility model content
For detection object it is single the problem of, the utility model purpose be propose one kind can to a variety of valve bodies carry out it is a variety of
The multifunction valve body hydraulic test system of test, concrete scheme are as follows：
A kind of multifunction valve body hydraulic test system, including fuel tank, the fuel tank are connected with the first hydraulic pump, and described first
Hydraulic pump is connected with flow speed control valve, and the flow speed control valve is connected with the hydraulic fluid port P of electromagnetism test valve and the hydraulic fluid port P of ratio test valve simultaneously；
The hydraulic fluid port A of the electromagnetism test valve is connected with the hydraulic fluid port P of the first two position three-way valve, first two position three-way valve
Hydraulic fluid port A is connected with the rodless cavity and first pressure sensor of test cylinder, and the hydraulic fluid port B of the electromagnetism test valve is connected with the two or two
The hydraulic fluid port P of triple valve, the hydraulic fluid port A of second two position three-way valve are connected with the rod chamber and second pressure sensing of the test cylinder
Device, the hydraulic fluid port T oil returns of the electromagnetism test valve enter the fuel tank；
The hydraulic fluid port A of the ratio test valve is connected with the hydraulic fluid port T and load testing mould of first two position three-way valve simultaneously
One end of block, the hydraulic fluid port B of the ratio test valve is connected with the hydraulic fluid port T of second two position three-way valve simultaneously and the load is surveyed
The other end of die trial block, the hydraulic fluid port T oil returns of the ratio test valve enter the fuel tank；
The test cylinder is placed in one end of loading stand, and the loading stand other end is provided with to be formed with the test cylinder
To the loading cylinder of top experiment, the fuel tank is connected with the second hydraulic pump, and second hydraulic pump is connected with the oil of three-position four-way valve
Mouth P, the hydraulic fluid port A of the three-position four-way valve are connected with the rod chamber of the loading cylinder, and the hydraulic fluid port of the three-position four-way valve is multi-functional
Valve body hydraulic test system is connected with the rodless cavity of the loading cylinder, and the hydraulic fluid port T oil returns of the three-position four-way valve enter the oil
Case.
Pass through above-mentioned technical proposal, flow speed control valve can be set up in advance according to required test valve body, electromagnetism test valve is only installed
Afterwards, it can carry out performance detection and accuracy detection to it, pass through first pressure sensor and second pressure sensor during performance detection
The pressure at detection test cylinder both ends, the oil filling capacity of electromagnetism test valve can be embodied in the motion for the piston rod for testing cylinder, essence
After starting the second hydraulic pump during degree detection, loading cylinder, mutually to top, forms the resistance of motion, according to test with test cylinder to test cylinder
The control accuracy of the motion detection electromagnetism test valve of cylinder.It is same as described above after proportion of installation test valve, performance can also be carried out
Detection and accuracy detection, simultaneously because the characteristic of ratio test valve, moreover it is possible to carry out load detecting, during load detecting, ratio test
The fluid of valve enters load testing module, so as to obtain the maximum working pressure (MWP) of ratio test valve.Whole system can be to difference
Valve body carries out different detections, the variation of test, while ensures not interfereing with each other in detection process, ensures the precision of detection, comprehensive
The power of test of combination make it that test is quicker, convenient, cost is low, applied widely.
Further, the load testing module include two intersect and one-way flow first test oil circuit and
Second test oil circuit, the first test oil circuit and the second test oil circuit are provided with two check valves and are arranged at two
The crosspoint of sequence valve between the check valve, the first test oil circuit and the second test oil circuit shares the order
The oil outlet end of valve, the oil inlet end of the first test oil circuit and the second test oil circuit is connected with the ratio test valve simultaneously
Hydraulic fluid port A and the 3rd pressure sensor, it is described first test oil circuit oil outlet end and it is described second test oil circuit oil inlet end it is same
When connection with the ratio test valve hydraulic fluid port B and the 4th pressure sensor.
Pass through above-mentioned technical proposal, close the first two position three-way valve and the second two position three-way valve so that ratio test valve is only
Connection enters load testing module, when ratio test valve right working position obtains electric, the first test oil communication, when ratio test valve is left
When station obtains electric, the second test oil communication, valve body is obtained according to the pressure difference of the 3rd pressure sensor and the 4th pressure sensor
Load capacity.
Further, it is provided with flowmeter at the oil-out of the sequence valve.
The flow of sequence valve is passed through in Pass through above-mentioned technical proposal, detection.
Further, first is provided between first hydraulic pump and the flow speed control valve and goes out oil strainer, the electromagnetism
Test between the hydraulic fluid port T of valve and the hydraulic fluid port T junctions of two streams of ratio test valve and the fuel tank and be provided with the first return filter,
Second is provided between second hydraulic pump and the hydraulic fluid port P of the three-position four-way valve and goes out oil strainer, the three-position four-way valve
Hydraulic fluid port T and the fuel tank between be provided with the second return filter.
Pass through above-mentioned technical proposal, disengaging fuel tank are required for, by filter, ensureing the clean of internal system fluid, so as to
So that measuring accuracy and data are more accurate.
Further, described first goes out oil strainer, first return filter, described second goes out oil strainer and institute
State the second return filter and be parallel with check valve and pressure switch.
Pass through above-mentioned technical proposal, in order to avoid influenceing logical oil after filter blocks, each filter is parallel with unidirectionally
Valve so that fluid has circulating direction, ensures the unobstructed of oil circuit, improves the security of system, after fluid enters check valve, pressure
Relay will send signal to controllers, play warning function.
Further, described first goes out between the oil outlet end of oil strainer and the oil inlet end of first return filter to set
It is equipped with proportional pressure control valve, described second goes out between the oil inlet end of the oil outlet end of oil strainer and second return filter to set
There is the first overflow valve.
Pass through above-mentioned technical proposal, proportional pressure control valve rise together for according to proportioning valve set up with the first overflow valve
To the effect of overload protection.
Further, the hydraulic fluid port P of the hydraulic fluid port P of electromagnetism test valve and ratio test valve collaborates and is connected with first
Stop valve, the hydraulic fluid port P of the three-position four-way valve are connected with the second stop valve, and the first stop valve and the second stop valve collaborate and connected
There is the second overflow valve, the overflow valve is connected with first return filter.
Pass through above-mentioned technical proposal, after opening the first stop valve and the second stop valve, each test valve and 3-position 4-way
Valve can be with quick relief.
Further, displacement transducer and velocity sensor are provided with the piston rod of the test cylinder.
Pass through above-mentioned technical proposal, when testing the piston rod movement of cylinder, can be accurately detected its movement speed and away from
From so as to ensure the precision of detection.
Further, the hydraulic fluid port T of the three-position four-way valve and described second is provided with forced air cooler between going out oil strainer.
Pass through above-mentioned technical proposal, forced air cooler reduce the temperature of fluid oil return.
Further, the oil-out of first hydraulic pump and the second hydraulic pump is provided with check valve.
Pass through above-mentioned technical proposal, check valve prevent fluid oil return.
Compared with prior art, the beneficial effects of the utility model are as follows：
Whole system can carry out different detections, the variation of test to different valve bodies, while ensure in detection process
It does not interfere with each other, ensures the precision of detection, the power of test of synthesization make it that test is quicker, convenient, cost is low, the scope of application
Extensively.
Brief description of the drawings
Fig. 1 is a kind of hydraulic principle schematic diagram of multifunction valve body hydraulic test system；
Fig. 2 is the hydraulic principle schematic diagram of load testing module.
Reference：1st, fuel tank；2nd, the first hydraulic pump；3rd, flow speed control valve；4th, the first two position three-way valve；5th, the second two-position three way
Valve；7th, cylinder is tested；8th, first pressure sensor；9th, second pressure sensor；10th, stand is loaded；11st, cylinder is loaded；12nd, the second liquid
Press pump；13rd, three-position four-way valve；14th, the first test oil circuit；15th, the second test oil circuit；16th, check valve；17th, sequence valve；18th,
Three pressure sensors；19th, the 4th pressure sensor；20th, flowmeter；22nd, first goes out oil strainer；23rd, the first return filter；
24th, second goes out oil strainer；25th, the second return filter；26th, pressure switch；27th, proportional pressure control valve；28th, the first overflow
Valve；29th, the first stop valve；30th, the second stop valve；31st, the second overflow valve；32nd, displacement transducer；33rd, velocity sensor；34、
Forced air cooler；100th, electromagnetism test valve；200th, ratio test valve.
Embodiment
In order that the purpose of this utility model, technical scheme and beneficial effect are clearer, with reference to embodiment and attached
The utility model is described in further detail for figure, but embodiment of the present utility model is not limited only to this.
A kind of multifunction valve body hydraulic test system, as shown in figure 1, including fuel tank 1, the oil-out of fuel tank 1 is connected with
One hydraulic pump 2, the first hydraulic pump 2 are connected with first and go out oil strainer 22, and the first hydraulic pump 2 and first go out between oil strainer 22
Check valve 16 is communicated with, first goes out the bypass of oil strainer 22 while be parallel with check valve 16 and pressure switch 26.It is in parallel unidirectional
Valve 16 can prevent from first to go out oil strainer 22 blocking, and obstruction signal is sent to controllers by pressure switch 26 simultaneously, is risen
To warning and reminding effect.First, which goes out oil strainer 22, is connected with flow speed control valve 3, and flow speed control valve 3 is simultaneously in parallel and is communicated with electromagnetism survey
Try the hydraulic fluid port P of valve 100 and the hydraulic fluid port P of ratio test valve 200.Can be with the oil inlet quantity of regulating system by flow speed control valve 3.
The hydraulic fluid port A of electromagnetism test valve 100 is connected with the hydraulic fluid port P of the first two position three-way valve 4, the oil of the first two position three-way valve 4
Mouth A is connected with the rodless cavity and first pressure sensor 8 of test cylinder 7, and the hydraulic fluid port B of electromagnetism test valve 100 is connected with the two or two
The hydraulic fluid port P of triple valve 5, the hydraulic fluid port A of the second two position three-way valve 5 are connected with the rod chamber and second pressure sensor 9 of test cylinder 7,
The hydraulic fluid port T oil returns of electromagnetism test valve 100 enter the first return filter 23, and the bypass of the first return filter 23 is parallel with check valve
16 and pressure switch 26, the first return filter 23 be connected with fuel tank 1.Check valve 16 in parallel can prevent the second oil return filter
Device 25 blocks.Whole loop is the performance detection that electromagnetism tests valve 100, by testing the motion of cylinder 7 and first pressure being passed
The Data Detection electromagnetism of sensor 8 and second pressure sensor 9 tests the oil filling capacity of valve 100.
Test on the piston rod of cylinder 7 and be fixed with displacement transducer 32 and velocity sensor 33.When the piston rod fortune of test cylinder 7
When dynamic, the speed and distance of its movement can be accurately detected by displacement transducer 32 and velocity sensor 33, so as to ensure
The precision of detection.
The hydraulic fluid port A of ratio test valve 200 is parallel with the hydraulic fluid port T of the first two position three-way valve 4 and one end of load testing module,
The hydraulic fluid port B of ratio test valve 200 is connected with the hydraulic fluid port T of the second two position three-way valve 5 and the other end of load testing module simultaneously, than
The hydraulic fluid port T oil returns of example test valve 200 enter the first return filter 23, and the first return filter 23 is connected into fuel tank 1.When the one or two
After the two position three-way valve 5 of position three-way valve 4 and second is opened, whole loop is the performance detection that ratio tests valve 200, by testing cylinder
7 motion and the logical oily energy for testing the Data Detection ratio of first pressure sensor 8 and second pressure sensor 9 valve 200
Power.
As shown in Fig. 2 load testing module is intersected including two and the first of one-way flow tests the He of oil circuit 14
Second test oil circuit 15, the first test test of oil circuit 14 and second oil circuit 15 is in " Z " font and center section oil circuit is overlapping, the
One test oil circuit 14 and second, which is tested, to be respectively connected with two check valves 16 on oil circuit 15 and is arranged between two check valves 16
Sequence valve 17, the first test oil circuit 14 and second, which is tested, shares the sequence valve 17 on the overlapping oil circuit of oil circuit 15, the first test
The oil outlet end of the oil inlet end of oil circuit 14 and the second test oil circuit 15 connects the pressures of hydraulic fluid port A and the 3rd of proportional test valve 200 simultaneously
The oil inlet end of force snesor 18, the oil outlet end of the first test oil circuit 14 and the second test oil circuit 15 connects and ratio test valve simultaneously
200 hydraulic fluid port B and the 4th pressure sensor 19.Flowmeter 20 is communicated with the oil-out of sequence valve 17.Close the one or two three
The two position three-way valve 5 of port valve 4 and second so that ratio test 200 connections of valve enter load testing module, and load testing module can
To realize that comparative example tests 200 distinctive load detecting of valve.When the ratio test right working position of valve 200 obtains electric, the first test oil circuit
14 connections, when ratio test 200 left station of valve obtains electric, the second test oil circuit 15 connects, according to the He of the 3rd pressure sensor 18
The pressure difference of 4th pressure sensor 19 obtains the load capacity of valve body different station, obtains the maximum functional of ratio test valve 200
Pressure.
As shown in figure 1, test cylinder 7 is fixed on one end of loading stand 10, test cylinder 7 is set in the same direction with loading stand 10,
The other end of loading stand 10 is fixed with forms the loading cylinder 11 tested top with test cylinder 7, loads piston rod and the survey of cylinder 11
The piston rod of examination cylinder 7 mutually abuts.The oil-out of fuel tank 1 is connected with the second hydraulic pump 12, and the second hydraulic pump 12 is connected with second
Go out oil strainer 24, the second hydraulic pump 12 and second are connected with check valve 16 between going out oil strainer 24, and second goes out oil strainer
24 bypasses are parallel with check valve 16 and pressure switch 26.Check valve 16 in parallel can prevent from second to go out oil strainer 24 blocking.
Second hydraulic pump 12 is connected with the hydraulic fluid port P of three-position four-way valve 13, and what the hydraulic fluid port A of three-position four-way valve 13 was connected with loading cylinder 11 has bar
Chamber, the hydraulic fluid port B of three-position four-way valve 13 are connected with the rodless cavity of loading cylinder 11, and the hydraulic fluid port T oil returns of three-position four-way valve 13 enter second
Return filter 25, the bypass of the second return filter 25 are parallel with check valve 16 and pressure switch 26, the second return filter
25 connections enter fuel tank 1.Whole loop forms control oil circuit to loading cylinder 11, top is tested so as to be formed with test cylinder 7, three
Four-way valve 13 can test electromagnetism valve 100 respectively after opening and ratio test valve 200 carries out accuracy detection, is detected with this each
The control accuracy of valve body.
The hydraulic fluid port T of three-position four-way valve 13 and second is provided with forced air cooler 34 between going out oil strainer 24.Pass through air cooling
Device 34 reduces the temperature of fluid oil return.
First goes out between the oil inlet end of the oil outlet end of oil strainer 22 and the first return filter 23 to be connected with proportional overflow
Valve 27, second goes out between the oil inlet end of the oil outlet end of oil strainer 24 and the second return filter 25 to be connected with the first overflow valve
28.Proportional pressure control valve 27 plays a part of overload protection together for according to proportioning valve set up with the first overflow valve 28.
The hydraulic fluid port P of electromagnetism test valve 100 and the hydraulic fluid port P of ratio test valve 200 collaborate and are connected with the first stop valve 29, three-position four-way valve
13 hydraulic fluid port P is connected with the second stop valve 30, and the first stop valve 29 and the second stop valve 30 collaborate and be connected with the second overflow valve
31, overflow valve is connected with first return filter 23.After opening the first stop valve 29 and the second stop valve 30, each test
Valve and three-position four-way valve 13 can play a part of protecting oil circuit with quick relief.
Working principle and beneficial effect of the present utility model is as follows：
Flow speed control valve 3 can be set up in advance according to required test valve body, after electromagnetism test valve 100 is only installed, electromagnetism can be surveyed
Try valve 100 and carry out performance detection and accuracy detection, pass through first pressure sensor 8 and second pressure sensor 9 during performance detection
The pressure at detection test cylinder 7 both ends, the oil filling capacity of electromagnetism test valve 100 can be embodied in the motion of the piston rod of test cylinder 7
On, displacement transducer 32 and velocity sensor 33 can accurately obtain the exercise data for testing cylinder 7；Start second during accuracy detection
After hydraulic pump 12, loading cylinder 11, mutually to top, forms the resistance of motion, according to the motion of test cylinder 7 with test cylinder 7 to test cylinder 7
Detect the control accuracy of electromagnetism test valve 100.
It is identical with above-mentioned method of testing after proportion of installation test valve 200, can also the comparative example test progressive of valve 200
Can detection and accuracy detection, simultaneously because the characteristic of ratio test valve 200, moreover it is possible to carry out load detecting, during load detecting, ratio
The fluid of test valve 200 respectively enters the first test oil circuit 14 and the second test oil circuit 15, passes through the He of the 3rd pressure sensor 18
The data acquisition pressure differential of 4th pressure sensor 19, so as to obtain the maximum working pressure (MWP) of ratio test valve 200.
Whole system can carry out different detections to different valve bodies, and the variation of test, applicable scene is more, and electromagnetism is surveyed
Examination valve 100 and ratio test valve 200 can carry out performance detection and accuracy detection, and ratio test valve 200 can also be loaded
Detection, performance detection test the oil filling capacity of valve body, and accuracy detection tests the control accuracy of valve body, load detecting test valve body
Maximum working pressure (MWP).When whole system carries out different detections to different valve bodies, it is not interfere with each other in detection process, ensures the essence of detection
Degree, the power of test of synthesization make it that test is quicker, convenient, cost is low, applied widely, and detection efficiency is high, is applied to
Laboratory, factory and other complex detection environment.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (10)
1. a kind of multifunction valve body hydraulic test system, it is characterised in that including fuel tank（1）, the fuel tank（1）It is connected with first
Hydraulic pump（2）, first hydraulic pump（2）It is connected with flow speed control valve（3）, the flow speed control valve（3）Electromagnetism test valve is connected with simultaneously
（100）Hydraulic fluid port P and ratio test valve（200）Hydraulic fluid port P；
The electromagnetism tests valve（100）Hydraulic fluid port A be connected with the first two position three-way valve（4）Hydraulic fluid port P, first two-position three way
Valve（4）Hydraulic fluid port A be connected with test cylinder（7）Rodless cavity and first pressure sensor（8）, the electromagnetism test valve（100）'s
Hydraulic fluid port B is connected with the second two position three-way valve（5）Hydraulic fluid port P, second two position three-way valve（5）Hydraulic fluid port A be connected with the survey
Try cylinder（7）Rod chamber and second pressure sensor（9）, the electromagnetism test valve（100）Hydraulic fluid port T oil returns enter the fuel tank
（1）；
The ratio tests valve（200）Hydraulic fluid port A simultaneously be connected with first two position three-way valve（4）Hydraulic fluid port T and load survey
One end of die trial block, the ratio test valve（200）Hydraulic fluid port B simultaneously be connected with second two position three-way valve（5）Hydraulic fluid port T
With the other end of the load testing module, the ratio tests valve（200）Hydraulic fluid port T oil returns enter the fuel tank（1）；
The test cylinder（7）It is placed in loading stand（10）One end, the loading stand（10）The other end is provided with and the survey
Try cylinder（7）Form the loading cylinder to top experiment（11）, the fuel tank（1）It is connected with the second hydraulic pump（12）, second hydraulic pressure
Pump（12）It is connected with three-position four-way valve（13）Hydraulic fluid port P, the three-position four-way valve（13）Hydraulic fluid port A be connected with the loading cylinder
（11）Rod chamber, the three-position four-way valve（13）Hydraulic fluid port multifunction valve body hydraulic test system be connected with the loading cylinder
（11）Rodless cavity, the three-position four-way valve（13）Hydraulic fluid port T oil returns enter the fuel tank（1）.
2. multifunction valve body hydraulic test system according to claim 1, it is characterised in that the load testing module bag
Include two intersect and one-way flow first test oil circuit（14）With the second test oil circuit（15）, first test oil
Road（14）With the described second test oil circuit（15）It is provided with two check valves（16）Be arranged at two check valves（16）
Between sequence valve（17）, the first test oil circuit（14）With the described second test oil circuit（15）Crosspoint share it is described suitable
Sequence valve（17）, the first test oil circuit（14）Oil inlet end and it is described second test oil circuit（15）Oil outlet end be connected with simultaneously
The ratio tests valve（200）Hydraulic fluid port A and the 3rd pressure sensor（18）, the first test oil circuit（14）Oil outlet end and
The second test oil circuit（15）Oil inlet end simultaneously connect with the ratio test valve（200）Hydraulic fluid port B and the 4th pressure pass
Sensor（19）.
3. multifunction valve body hydraulic test system according to claim 2, it is characterised in that the sequence valve（17）Go out
Oil port is provided with flowmeter（20）.
4. multifunction valve body hydraulic test system according to claim 3, it is characterised in that first hydraulic pump（2）
With the flow speed control valve（3）Between be provided with first and go out oil strainer（22）, the electromagnetism test valve（100）Hydraulic fluid port T and described
Ratio tests valve（200）Hydraulic fluid port T junctions of two streams and the fuel tank（1）Between be provided with the first return filter（23）, described
Two hydraulic pumps（12）With the three-position four-way valve（13）Hydraulic fluid port P between be provided with second and go out oil strainer（24）, described three
Four-way valve（13）Hydraulic fluid port T and the fuel tank（1）Between be provided with the second return filter（25）.
5. multifunction valve body hydraulic test system according to claim 4, it is characterised in that described first goes out oil strainer
（22）, first return filter（23）, described second go out oil strainer（24）With second return filter（25）
It is parallel with check valve（16）And pressure switch（26）.
6. multifunction valve body hydraulic test system according to claim 5, it is characterised in that described first goes out oil strainer
（22）Oil outlet end and first return filter（23）Oil inlet end between be provided with proportional pressure control valve（27）, described second
Go out oil strainer（24）Oil outlet end and second return filter（25）Oil inlet end between be provided with the first overflow valve
（28）.
7. multifunction valve body hydraulic test system according to claim 6, it is characterised in that the electromagnetism tests valve
（100）Hydraulic fluid port P and the ratio test valve（200）Hydraulic fluid port P collaborate and be connected with the first stop valve（29）, described three four
Port valve（13）Hydraulic fluid port P be connected with the second stop valve（30）, the first stop valve（29）With the second stop valve（30）Collaborate and connect
There is the second overflow valve（31）, the overflow valve is connected with first return filter（23）.
8. multifunction valve body hydraulic test system according to claim 1, it is characterised in that the test cylinder（7）Work
Displacement transducer is provided with stopper rod（32）And velocity sensor（33）.
9. multifunction valve body hydraulic test system according to claim 4, it is characterised in that the three-position four-way valve（13）
Hydraulic fluid port T and described second go out oil strainer（24）Between be provided with forced air cooler（34）.
10. multifunction valve body hydraulic test system according to claim 1, it is characterised in that first hydraulic pump（2）
With the second hydraulic pump（12）Oil-out be provided with check valve（16）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721127045.0U CN207195362U (en) | 2017-09-04 | 2017-09-04 | A kind of multifunction valve body hydraulic test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721127045.0U CN207195362U (en) | 2017-09-04 | 2017-09-04 | A kind of multifunction valve body hydraulic test system |
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| Publication Number | Publication Date |
|---|---|
| CN207195362U true CN207195362U (en) | 2018-04-06 |
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ID=61791131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721127045.0U Active CN207195362U (en) | 2017-09-04 | 2017-09-04 | A kind of multifunction valve body hydraulic test system |
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| CN (1) | CN207195362U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108776022A (en) * | 2018-04-16 | 2018-11-09 | 中煤科工集团西安研究院有限公司 | Pump truck device for detecting performance based on load simulation in directional drilling hole and method |
| CN111795037A (en) * | 2020-07-14 | 2020-10-20 | 安徽江淮汽车集团股份有限公司 | Test system of gearbox hydraulic control device |
-
2017
- 2017-09-04 CN CN201721127045.0U patent/CN207195362U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108776022A (en) * | 2018-04-16 | 2018-11-09 | 中煤科工集团西安研究院有限公司 | Pump truck device for detecting performance based on load simulation in directional drilling hole and method |
| CN111795037A (en) * | 2020-07-14 | 2020-10-20 | 安徽江淮汽车集团股份有限公司 | Test system of gearbox hydraulic control device |
| CN111795037B (en) * | 2020-07-14 | 2021-08-27 | 安徽江淮汽车集团股份有限公司 | Test system of gearbox hydraulic control device |
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