CN107387502B - A kind of integrated test system and method for valve body - Google Patents
A kind of integrated test system and method for valve body Download PDFInfo
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- CN107387502B CN107387502B CN201710787081.8A CN201710787081A CN107387502B CN 107387502 B CN107387502 B CN 107387502B CN 201710787081 A CN201710787081 A CN 201710787081A CN 107387502 B CN107387502 B CN 107387502B
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- oil
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Classifications
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- 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
- F15B19/007—Simulation or modelling
-
- 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
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
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- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/087—Control strategy, e.g. with block diagram
Abstract
The invention discloses a kind of integrated test system of valve body and methods, it is related to valve body test device field, including fuel tank, fuel tank is connected with the first hydraulic pump and speed governing valve, speed governing valve is connected with electromagnetism test valve and ratio test valve simultaneously, electromagnetism test valve and ratio test valve are connected with the second two position three-way valve and third two position three-way valve simultaneously, second two position three-way valve is connected with the first two position three-way valve, first two position three-way valve and third two position three-way valve are connected with the both ends of test cylinder, ratio test valve is also connected with load testing module, the load cylinder with test cylinder to top is provided on load rack, fuel tank is connected with the second hydraulic pump and three-position four-way valve, three-position four-way valve is connected with load cylinder.The present invention can carry out different detections, the diversification of test to different valve bodies, while not interfere with each other in valve body detection process, guarantee the precision of detection, and the power of test of synthesization makes test quicker, convenient, at low cost, applied widely.
Description
Technical field
The present invention relates to valve body test device field, more specifically, it relates to a kind of integrated test system of valve body and
Method.
Background technique
Hydraulic technique is after being widely used in every field, and a possibility that breaking down also increases therewith, hydraulic system
Failure have the characteristics that concealment, transformation property and risk factor diversity, so troubleshooting when, not only need skilled skill
Art personnel, while also needing perfect detection device.Current testing equipment is mostly the single hydraulic test bench of performance, and is surveyed
It is typically all that experimenter estimates record, test data inaccuracy in examination.
In view of the above-mentioned problems, patent announcement number is the Chinese patent of CN104458161A, a kind of auxiliary braking use is proposed
Normally open solenoid valve test device and test method, including differential pressure pick-up and it is connected thereto first row air valve and the 4th air valve, it is poor
The pipeline that pressure sensor is connected to the 4th air valve is connected to third air valve and the 5th air valve respectively, and the connection of the 4th air valve is to be measured
Part, the second air valve in parallel between the first air valve and third air valve, the second air valve connect the first orthobaric volume block, and part to be measured passes through row
Tracheae is separately connected second row air valve, pressure sensor and the second orthobaric volume block.Patent announcement number is CN204783953U
Chinese patent, propose the synthesis energy saving experimental rig of a kind of solenoid valve and hydraulic cylinder reliability, including hydraulic pump, hydraulic pump
Be connected with the first check valve, the oil outlet of the first check valve connects pressure oil filter and overflow valve respectively, pressure oil filter it is fuel-displaced
Mouth connects two solenoid valves and hydraulic cylinder test module and accumulator package respectively.
Above-mentioned patent can only to valve body carry out single performance test, a hydraulic system by multiple and different types valve body group
At, once hydraulic system failure, usually needs the technical indicator for detecting a variety of different Hydraulic Elements, could diagnose the hair that is out of order
The root at raw position and generation.In order to avoid interfering with each other, detection process is that single valve body carries out alone, this is just needed
The hydraulic test bench of more set single performances, will certainly correspondingly improve testing cost.
Summary of the invention
For the single problem of valve body test object and mode, comprehensive the purpose of the present invention is to propose to a kind of valve body is surveyed
Test system and method can test a variety of different types of valve bodies simultaneously and detect the multiple performance of valve body.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of integrated test system of valve body, including fuel tank, the fuel tank are connected with the first hydraulic pump, and described first is hydraulic
Pump is connected with speed governing valve, and the speed governing 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 second two position three-way valve, second two position three-way valve
Hydraulic fluid port A is connected with the hydraulic fluid port T of the first two position three-way valve, the hydraulic fluid port A of first two position three-way valve be connected with test cylinder without bar
The hydraulic fluid port B of chamber and first pressure sensor, the electromagnetism test valve is connected with the hydraulic fluid port P of third two position three-way valve, the third
The hydraulic fluid port A of two position three-way valve is connected with the rod chamber and second pressure sensor of the test cylinder, the oil of the electromagnetism test valve
Mouth T oil return enters 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 second two position three-way valve simultaneously
The hydraulic fluid port B of one end of block, the ratio test valve is connected with the hydraulic fluid port T of the third two position three-way valve simultaneously and the load is surveyed
The hydraulic fluid port T oil return of the other end of die trial block, the ratio test valve enters the fuel tank；
The test cylinder is placed in one end of load rack, and the load rack other end is provided with to be formed with the test cylinder
To the load cylinder of top test, 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 load cylinder, and the hydraulic fluid port B of the three-position four-way valve is connected with
The rodless cavity of the load cylinder, the hydraulic fluid port T oil return of the three-position four-way valve enter the fuel tank.
Through the above technical solutions, speed governing valve can be set up in advance according to required test valve body, electromagnetism is only installed and tests valve
Afterwards, performance detection and accuracy detection can be carried out to it, when performance detection passes through first pressure sensor and second pressure sensor
The oil filling capacity of the pressure at detection test cylinder both ends, electromagnetism test valve can be embodied in the movement for testing the piston rod of cylinder, essence
After starting the second hydraulic pump when degree detection, load cylinder and test cylinder form the resistance of motion to test cylinder, according to test mutually to top
The control precision 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, when load detecting, ratio test
The oil liquid of valve enters load testing module, to obtain the maximum working pressure (MWP) of ratio test valve.Whole system can be to difference
Valve body carries out different detections, the diversification of test, while guaranteeing not interfereing with each other in detection process, guarantees the precision of detection, comprehensive
The power of test of combination makes test quicker, convenient, at low cost, 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 set to two
The crosspoint of sequence valve between the check valve, the first test oil circuit and the second test oil circuit shares the sequence
The oil outlet 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 third pressure sensor, it is described first test oil circuit oil outlet 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.
Through the above technical solutions, the second two position three-way valve and third two position three-way valve are closed, 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 obtains valve body according to the pressure difference of third pressure sensor and the 4th pressure sensor
Load capacity.
Further, the speed governing valve is connected with the hydraulic fluid port P of two position two-way valve, the hydraulic fluid port A connection of the two position two-way valve
There is accumulator, the hydraulic fluid port A, the hydraulic fluid port B of the inserting test valve that the accumulator is connected with inserting test valve are connected with the one or two
The hydraulic fluid port P of position three-way valve.
Through the above technical solutions, performance detection and accuracy detection can also be carried out to inserting test valve, due to inserted valve
The characteristic of itself improves enough hydraulic energies by accumulator.
Further, it is provided with first between first hydraulic pump and the speed governing valve and goes out oil strainer, the electromagnetism
It tests between the hydraulic fluid port T of valve and the hydraulic fluid port T junction of two streams and the fuel tank of ratio test valve and is provided with the first return filter,
It is provided with second 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.
Through the above technical solutions, disengaging fuel tank requires to guarantee the clean of internal system oil liquid by filter, thus
So that measuring accuracy and data are more accurate.
Further, described first goes out oil strainer, first return filter, described second oil strainer and institute out
It states the second return filter and is parallel with check valve and pressure switch.
Through the above technical solutions, each filter is parallel with unidirectionally in order to avoid influencing logical oil after filter obstruction
Valve guarantees the unobstructed of oil circuit so that oil liquid has circulating direction, improves the safety of system, after oil liquid enters check valve, pressure
Relay will send signal to controllers, play a warning role.
Further, described first goes out between the oil outlet 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 outlet of oil strainer and the oil inlet end of second return filter to be arranged
There is the first overflow valve.
Through the above technical solutions, proportional pressure control valve rises for set up according to proportioning valve with the first overflow valve together
To the effect of overload protection.
Further, the hydraulic fluid port P of the hydraulic fluid port P of the electromagnetism test valve and ratio test valve collaborates and is connected with first
Shut-off valve, the hydraulic fluid port P of the three-position four-way valve are connected with the second shut-off valve, and the first shut-off valve and the second shut-off valve collaborate and connects
There is the second overflow valve, the overflow valve is connected with first return filter.
Through the above technical solutions, after opening the first shut-off valve and the second shut-off valve, each test valve and 3-position 4-way
Valve can be with quick relief.
Further, displacement sensor and velocity sensor are provided on the piston rod of the test cylinder.
Through the above technical solutions, test cylinder piston rod movement when, can be accurately detected its movement speed and away from
From to guarantee the precision of detection.
Further, the hydraulic fluid port T of the three-position four-way valve and described second, which goes out between oil strainer, is provided with air cooler.
Through the above technical solutions, air cooler reduces the temperature of oil liquid oil return.
A kind of integrated test facility of valve body, including test as follows,
Solenoid valve testing experiment: installation electromagnetism tests valve, sets up speed governing valve, starts the first hydraulic pump, the second two-position three way
Valve and third two position three-way valve obtain electric, and electromagnetism test valve obtains electric, and the kinematic parameter by testing cylinder obtains electromagnetism and tests the logical of valve
Oily ability；Start the second hydraulic pump, three-position four-way valve obtains electric, and load cylinder and test cylinder moves in the same direction and mutually to tops, detect electric
The control precision of magnetic tester valve；
Proportioning valve testing experiment: the proportion of installation tests valve, sets up speed governing valve, starts the first hydraulic pump, and ratio test valve obtains
Electricity, the kinematic parameter by testing cylinder obtain the oil filling capacity that ratio tests valve；Second two position three-way valve and third two-position three way
Valve obtain it is electric, pass through pressure difference detection ratio test valve load capacity；Start the second hydraulic pump, three-position four-way valve obtains electric, load
Cylinder and test cylinder move in the same direction and mutually to tops, and detection ratio tests the control precision of valve；
Inserted valve testing experiment: installation inserting test valve sets up speed governing valve, starts the first hydraulic pump, two position two-way valve obtains
Electricity, the first two position three-way valve and third two position three-way valve obtain electric, and the kinematic parameter by testing cylinder obtains the logical of inserting test valve
Oily ability；Start the second hydraulic pump, three-position four-way valve obtains electric, and load cylinder and test cylinder moves in the same direction and mutually to tops, detect slotting
The control precision of dress test valve.
Through the above technical solutions, electromagnetism test valve, ratio test valve and inserting test valve can carry out performance detection
And accuracy detection, ratio test valve also can be carried out load detecting, performance detection tests the oil filling capacity of valve body, accuracy detection test
The control precision of valve body, load detecting test the maximum working pressure (MWP) of valve body.By integrating multiple detection systems, reasonable employment money
Source reduces testing cost, and single hydraulic test bench is enabled to carry out a variety of tests to different valve bodies, while guaranteeing not do mutually
It disturbs, test is more quickly and convenient.
Compared with prior art, beneficial effects of the present invention are as follows:
Whole system can carry out different detections, the diversification of test to different valve bodies, while guarantee in detection process
It does not interfere with each other, guarantees the precision of detection, the power of test of synthesization to test quicker, convenient, the at low cost, scope of application
Extensively.
Detailed description of the invention
Fig. 1 is a kind of hydraulic principle schematic diagram of the integrated test system of valve body；
Fig. 2 is the hydraulic principle schematic diagram of load testing module.
Appended drawing reference: 1, fuel tank；2, the first hydraulic pump；3, speed governing valve；4, the first two position three-way valve；5, the second two-position three way
Valve；6, third two position three-way valve；7, cylinder is tested；8, first pressure sensor；9, second pressure sensor；10, rack is loaded；
11, cylinder is loaded；12, the second hydraulic pump；13, three-position four-way valve；14, the first test oil circuit；15, the second test oil circuit；16, unidirectional
Valve；17, sequence valve；18, third pressure sensor；19, the 4th pressure sensor；20, two position two-way valve；21, accumulator；22,
First goes out oil strainer；23, the first return filter；24, second goes out oil strainer；25, the second return filter；26, pressure
Relay；27, proportional pressure control valve；28, the first overflow valve；29, the first shut-off valve；30, the second shut-off valve；31, the second overflow valve；
32, displacement sensor；33, velocity sensor；34, air cooler；35, flowmeter；100, electromagnetism tests valve；200, ratio is tested
Valve；300, inserting test valve.
Specific embodiment
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, below with reference to examples and drawings pair
The present invention is described in further detail, but embodiments of the present invention are not limited only to this.
As shown in Figure 1, a kind of integrated test system of valve body, including fuel tank 1, the oil outlet of fuel tank 1 are connected with the first liquid
Press pump 2, the first hydraulic pump 2 are connected with first and go out oil strainer 22, and first goes out the bypass of oil strainer 22 while being parallel with check valve
16 and pressure switch 26.Check valve 16 in parallel can prevent first to go out the obstruction of oil strainer 22, and pressure switch 26 simultaneously will
Obstruction signal is sent to controllers, plays warning and reminding effect.First, which goes out oil strainer 22, is connected with speed governing valve 3.Pass through
The oil inlet quantity of the adjustable system of speed governing valve 3.
Speed governing valve 3 is in parallel simultaneously and is communicated with the hydraulic fluid port P and two of the hydraulic fluid port P of electromagnetism test valve 100, ratio test valve 200
The hydraulic fluid port P of position two-port valve 20.
The hydraulic fluid port A of electromagnetism test valve 100 is connected with the hydraulic fluid port P of the second two position three-way valve 5, the oil of the second two position three-way valve 5
Mouthful A is connected with the hydraulic fluid port T of the first two position three-way valve 4, the hydraulic fluid port A of the first two position three-way valve 4 be connected with test cylinder 7 rodless cavity and
The hydraulic fluid port B of first pressure sensor 8, electromagnetism test valve 100 is connected with the hydraulic fluid port P of third two position three-way valve 6, third two-position three way
The hydraulic fluid port A of valve 6 is connected with the rod chamber and second pressure sensor 9 of test cylinder 7, and the hydraulic fluid port T oil return that electromagnetism tests valve 100 enters
First return filter 23, the bypass of the first return filter 23 are parallel with check valve 16 and pressure switch 26, the first oil return
Filter 23 is connected with fuel tank 1.Check valve 16 in parallel can prevent the second return filter 25 from blocking.Entire circuit is electromagnetism test
The performance detection of valve 100, by testing the movement of cylinder 7 and to the data of first pressure sensor 8 and second pressure sensor 9
Detect the oil filling capacity of electromagnetism test valve 100.
It tests on the piston rod of cylinder 7 and is fixed with displacement sensor 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 sensor 32 and velocity sensor 33, to guarantee
The precision of detection.
The hydraulic fluid port A of ratio test valve 200 is parallel with the hydraulic fluid port T of the second two position three-way valve 5 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 third two position three-way valve 6 and the other end of load testing module simultaneously, than
The hydraulic fluid port T oil return of example test valve 200 enters the first return filter 23, and the first return filter 23 is connected into fuel tank 1.When the one or two
After position three-way valve 4, the second two position three-way valve 5 and third two position three-way valve 6 are opened, entire circuit is the property that ratio tests valve 200
It can detect, by testing the movement of cylinder 7 and to the Data Detection ratio of first pressure sensor 8 and second pressure sensor 9
Test the oil filling capacity of valve 200.
As shown in Fig. 2, load testing module include two intersect and one-way flow first test 14 He of oil circuit
Oil circuit 15 is "Z"-shaped and middle section oil circuit is overlapped for second test oil circuit 15, the first test oil circuit 14 and the second test, the
It is all connected on one test oil circuit 14 and the second test oil circuit 15 there are two check valve 16 and is set between two check valves 16
The sequence valve 17, sequence valve 17 are shared on the overlapping oil circuit of sequence valve 17, the first test oil circuit 14 and the second test oil circuit 15
Oil outlet be connected with flowmeter 35 simultaneously, the oil outlet of the oil inlet end of the first test oil circuit 14 and the second test oil circuit 15 is simultaneously
Connect the hydraulic fluid port A and third pressure sensor 18 of proportional test valve 200, the oil outlet and the second test of the first test oil circuit 14
The oil inlet end of oil circuit 15 connects the hydraulic fluid port B and the 4th pressure sensor 19 with ratio test valve 200 simultaneously.Close the two or two three
Port valve 5 and third two position three-way valve 6, so that ratio tests 200, valve connections and enters load testing module, load testing module can
To realize that comparative example tests the distinctive load detecting of valve 200.When ratio test 200 right working position of valve obtains electric, the first test oil circuit
14 connections, when the ratio test left station of valve 200 obtains electric, the second test oil circuit 15 is connected to, according to 18 He of third pressure sensor
The load capacity of data acquisition ratio test 200 different station of valve of the pressure difference and flowmeter 35 of 4th pressure sensor 19, obtains
To the maximum working pressure (MWP) of ratio test valve 200.
As shown in Figure 1, the hydraulic fluid port A of two position two-way valve 20 is connected with accumulator 21, accumulator 21 is connected with inserting test valve
The hydraulic fluid port B of 300 hydraulic fluid port A, inserting test valve 300 are connected with the hydraulic fluid port P of the first two position three-way valve 4.Entire circuit is that inserting is surveyed
The performance detection for trying valve 300, improves enough hydraulic energies by accumulator 21, by testing the movement of cylinder 7 and pressing first
The oil filling capacity of the Data Detection of force snesor 8 and second pressure sensor 9 inserting test valve 300.
Test cylinder 7 is fixed on one end of load rack 10, and test cylinder 7 and load rack 10 are arranged in the same direction, loads rack 10
The other end be fixed with test cylinder 7 formed to top test load cylinder 11, load cylinder 11 piston rod and test cylinder 7 piston
Bar mutually abuts.The oil outlet of fuel tank 1 is connected with the second hydraulic pump 12, and the second hydraulic pump 12 is connected with second and goes out oil strainer
24, second, which goes out the bypass of oil strainer 24, is parallel with check valve 16 and pressure switch 26.Check valve 16 in parallel can prevent second
Oil strainer 24 blocks out.Second hydraulic pump 12 is connected with the hydraulic fluid port P of three-position four-way valve 13, and the hydraulic fluid port A of three-position four-way valve 13 connects
It is connected to the rod chamber of load cylinder 11, the hydraulic fluid port B of three-position four-way valve 13 is connected with the rodless cavity of load cylinder 11, three-position four-way valve 13
Hydraulic fluid port T oil return enters the second return filter 25, and the bypass of the second return filter 25 is parallel with check valve 16 and pressure switch
26, the connection of the second return filter 25 enters fuel tank 1.Entire circuit forms control oil circuit to load cylinder 11, thus with test cylinder 7
It is formed and top is tested, three-position four-way valve 13 can respectively survey electromagnetism test valve 100, ratio test valve 200 and inserting after opening
It tries valve 300 and carries out accuracy detection, the control precision of each valve body is detected with this.
The hydraulic fluid port T of three-position four-way valve 13 and second, which goes out between oil strainer 24, is equipped with air cooler 34.Pass through air cooling
The temperature of the reduction oil liquid oil return of device 34.
First goes out between the oil outlet of oil strainer 22 and the oil inlet end of the first return filter 23 to be connected with proportional overflow
Valve 27, second goes out between the oil outlet of oil strainer 24 and the oil inlet end of the second return filter 25 to be connected with the first overflow valve
28.Proportional pressure control valve 27 plays the role of overload protection with the first overflow valve 28 for set up according to proportioning valve together.
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 shut-off valve 29, three-position four-way valve
13 hydraulic fluid port P is connected with the second shut-off valve 30, and the first shut-off valve 29 and the second shut-off valve 30 collaborate and is connected with the second overflow valve
31, overflow valve is connected with first return filter 23.After opening the first shut-off valve 29 and the second shut-off valve 30, each test
Valve and three-position four-way valve 13 can play the role of protecting oil circuit with quick relief.
Working principle of the present invention is as follows:
Speed governing valve 3 can be set up in advance according to required test valve body, after electromagnetism test valve 100 is only installed, it can be carried out
Performance detection and accuracy detection pass through first pressure sensor 8 and the detection test cylinder 7 of second pressure sensor 9 when performance detection
The oil filling capacity of the pressure at both ends, electromagnetism test valve 100 can be embodied in the movement for testing the piston rod of cylinder 7, displacement sensing
Device 32 and velocity sensor 33 can accurately obtain the exercise data of test cylinder 7；After starting the second hydraulic pump 12 when accuracy detection,
Cylinder 11 and test cylinder 7 are loaded mutually to top, and the resistance of motion is formed to test cylinder 7, is tested according to the motion detection electromagnetism of test cylinder 7
The control precision of valve 100.
It is same as described above after valve 300 is tested in proportion of installation test valve 200 and inserting respectively, performance detection can also be carried out
And accuracy detection, simultaneously because the characteristic of ratio test valve 200, moreover it is possible to carry out load detecting, when load detecting, ratio tests valve
200 oil liquid respectively enters the first test oil circuit 14 and the second test oil circuit 15, is pressed by third pressure sensor 18 and the 4th
The data acquisition pressure difference of force snesor 19, to obtain the maximum working pressure (MWP) of ratio test valve 200.
A kind of integrated test facility of valve body, including test as follows,
Solenoid valve testing experiment: installation electromagnetism tests valve 100, sets up speed governing valve 3, starts the first hydraulic pump the 2, the 2nd 2
Triple valve 5 and third two position three-way valve 6 it is electric, electromagnetism test valve 100 it is electric, the kinematic parameter for passing through test cylinder 7 obtains electromagnetism
Test the oil filling capacity of valve 100；Start the second hydraulic pump 12, three-position four-way valve 13 obtains electric, load cylinder 11 and test cylinder 7 fortune in the same direction
It moves and mutually to top, the control precision of detection electromagnetism test valve 100；
Proportioning valve testing experiment: the proportion of installation tests valve 200, sets up speed governing valve 3, starts the first hydraulic pump 2, ratio test
Valve 200 must be electric, passes through the oil filling capacity for testing the kinematic parameter acquisition ratio test valve 200 of cylinder 7；Second two position three-way valve, 5 He
Third two position three-way valve 6 must be electric, passes through the load capacity that pressure difference detection ratio tests valve 200；Start the second hydraulic pump 12, three
Position four-way valve 13 it is electric, the movement and mutually to top in the same direction of load cylinder 11 and test cylinder 7, the control that detection ratio tests valve 200 is smart
Degree；
Inserted valve testing experiment: installation inserting test valve 300 sets up speed governing valve 3, starts the first hydraulic pump 2, bi-bit bi-pass
Valve 20 it is electric, the first two position three-way valve 4 and third two position three-way valve 6 it is electric, the kinematic parameter for passing through test cylinder 7 obtains inserting and surveys
Try the oil filling capacity of valve 300；Start the second hydraulic pump 12, three-position four-way valve 13 obtains electric, load cylinder 11 and the movement in the same direction of test cylinder 7
And mutually to top, the control precision of detection inserting test valve 300.
Effective effect of the invention is as follows:
Whole system can carry out different detections, the diversification of test to different valve bodies, and electromagnetism tests valve 100, ratio
Test valve 200 and inserting test valve 300 can carry out performance detection and accuracy detection, and ratio test valve 200 also can be carried out negative
Detection is carried, performance detection tests the oil filling capacity of valve body, and accuracy detection tests the control precision of valve body, and load detecting tests valve body
Maximum working pressure (MWP).It when whole system carries out different detections to different valve bodies, is not interfere with each other in detection process, guarantees detection
Precision, the power of test of synthesization make test quicker, convenient, at low cost, applied widely, and detection efficiency is high, are applicable in
In laboratory, factory and other complex detection environment.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of integrated test system of valve body, which is characterized in that including fuel tank (1), it is hydraulic that the fuel tank (1) is connected with first
It pumps (2), first hydraulic pump (2) is connected with speed governing valve (3), and the speed governing valve (3) is connected with electromagnetism test valve (100) simultaneously
Hydraulic fluid port P and ratio test valve (200) hydraulic fluid port P；
The hydraulic fluid port A of electromagnetism test valve (100) is connected with the hydraulic fluid port P of the second two position three-way valve (5), second two-position three way
The hydraulic fluid port A of valve (5) is connected with the hydraulic fluid port T of the first two position three-way valve (4), and the hydraulic fluid port A of first two position three-way valve (4) is connected with
The rodless cavity and first pressure sensor (8) of cylinder (7) are tested, the hydraulic fluid port B of electromagnetism test valve (100) is connected with the three or two
The hydraulic fluid port P of triple valve (6), the hydraulic fluid port A of the third two position three-way valve (6) are connected with the rod chamber and the of test cylinder (7)
The hydraulic fluid port T oil return of two pressure sensors (9), electromagnetism test valve (100) enters the fuel tank (1)；
The hydraulic fluid port A of ratio test valve (200) is connected with the hydraulic fluid port T of second two position three-way valve (5) simultaneously and load is surveyed
The hydraulic fluid port B of one end of die trial block, ratio test valve (200) is connected with the hydraulic fluid port T of the third two position three-way valve (6) simultaneously
Hydraulic fluid port T oil return with the other end of the load testing module, ratio test valve (200) enters the fuel tank (1)；
Test cylinder (7) is placed in one end of load rack (10), and load rack (10) other end is provided with and the survey
It tries cylinder (7) and forms the load cylinder (11) tested top, the fuel tank (1) is connected with the second hydraulic pump (12), and described second is hydraulic
The hydraulic fluid port P, the hydraulic fluid port A of the three-position four-way valve (13) that pump (12) is connected with three-position four-way valve (13) are connected with the load cylinder
(11) rod chamber, the hydraulic fluid port B of the three-position four-way valve (13) be connected with it is described load cylinder (11) rodless cavity, described three four
The hydraulic fluid port T oil return of port valve (13) enters the fuel tank (1).
2. the integrated test system of valve body according to claim 1, which is characterized in that the load testing module includes two
Item intersects and the first test oil circuit (14) and the second test oil circuit (15) of one-way flow, the first test oil circuit
(14) and it is described second test oil circuit (15) be respectively provided with there are two check valve (16) and be set to two check valves (16) it
Between sequence valve (17), it is described first test oil circuit (14) and it is described second test oil circuit (15) crosspoint share the sequence
The oil outlet of valve (17), the oil inlet end of first test oil circuit (14) and second test oil circuit (15) connects simultaneously
State the hydraulic fluid port A and third pressure sensor (18) of ratio test valve (200), the oil outlet of first test oil circuit (14) and institute
State the hydraulic fluid port B and the 4th pressure sensing of the oil inlet end of the second test oil circuit (15) while connection and ratio test valve (200)
Device (19).
3. the integrated test system of valve body according to claim 2, which is characterized in that the speed governing valve (3) is connected with two
The hydraulic fluid port P of position two-port valve (20), the hydraulic fluid port A of the two position two-way valve (20) are connected with accumulator (21), the accumulator (21)
The hydraulic fluid port A, the hydraulic fluid port B of inserting test valve (300) for being connected with inserting test valve (300) are connected with the first two position three-way valve
(4) hydraulic fluid port P.
4. the integrated test system of valve body according to claim 3, which is characterized in that first hydraulic pump (2) and institute
It states and is provided with first between speed governing valve (3) out oil strainer (22), the hydraulic fluid port T of electromagnetism test valve (100) and the ratio
It tests between the hydraulic fluid port T junction of two streams and the fuel tank (1) of valve (200) and is provided with the first return filter (23), second liquid
It is provided with second between press pump (12) and the hydraulic fluid port P of the three-position four-way valve (13) and goes out oil strainer (24), the 3-position 4-way
The second return filter (25) are provided between the hydraulic fluid port T and the fuel tank (1) of valve (13).
5. the integrated test system of valve body according to claim 4, which is characterized in that described first goes out oil strainer
(22), first return filter (23), described second go out oil strainer (24) and second return filter (25)
It is parallel with check valve (16) and pressure switch (26).
6. the integrated test system of valve body according to claim 5, which is characterized in that described first goes out oil strainer (22)
Oil outlet and first return filter (23) oil inlet end between be provided with proportional pressure control valve (27), described second is fuel-displaced
The first overflow valve (28) are provided between the oil outlet of filter (24) and the oil inlet end of second return filter (25).
7. the integrated test system of valve body according to claim 6, which is characterized in that electromagnetism test valve (100)
Hydraulic fluid port P and the hydraulic fluid port P of ratio test valve (200) collaborate and are connected with the first shut-off valve (29), the three-position four-way valve
(13) hydraulic fluid port P is connected with the second shut-off valve (30), and the first shut-off valve (29) and the second shut-off valve (30) collaborate and is connected with the
Two overflow valves (31), second overflow valve are connected with first return filter (23).
8. the integrated test system of valve body according to claim 1, which is characterized in that the piston rod of test cylinder (7)
On be provided with displacement sensor (32) and velocity sensor (33).
9. the integrated test system of valve body according to claim 5, which is characterized in that the oil of the three-position four-way valve (13)
Air cooler (34) are provided between mouth T and second return filter (25).
10. a kind of integrated test facility of valve body, which is characterized in that including testing as follows,
Solenoid valve testing experiment: installation electromagnetism test valve (100) is set up speed governing valve (3), is started the first hydraulic pump (2), the two or two
Position three-way valve (5) and third two position three-way valve (6) it is electric, electromagnetism test valve (100) it is electric, pass through the movement ginseng of test cylinder (7)
Number obtains the oil filling capacity of electromagnetism test valve (100)；Start the second hydraulic pump (12), three-position four-way valve (13) obtains electric, load cylinder
(11) with test cylinder (7) movement in the same direction and mutually to top, the control precision of electromagnetism test valve (100) is detected；
Proportioning valve testing experiment: the proportion of installation tests valve (200), sets up speed governing valve (3), starts the first hydraulic pump (2), and ratio is surveyed
Try valve (200) it is electric, pass through test cylinder (7) kinematic parameter obtain ratio test valve (200) oil filling capacity；Two or two three
Port valve (5) and third two position three-way valve (6) must be electric, pass through the load capacity of pressure difference detection ratio test valve (200)；Starting the
Two hydraulic pumps (12), three-position four-way valve (13) it is electric, load cylinder (11) and test cylinder (7) movement and mutually to top in the same direction detect
Ratio tests the control precision of valve (200)；
Inserted valve testing experiment: installation inserting test valve (300) is set up speed governing valve (3), is started the first hydraulic pump (2), two two
Port valve (20) must be electric, and the first two position three-way valve (4) and third two position three-way valve (6) must be electric, passes through the kinematic parameter for testing cylinder (7)
Obtain the oil filling capacity of inserting test valve (300)；Start the second hydraulic pump (12), three-position four-way valve (13) obtains electric, load cylinder
(11) with test cylinder (7) movement in the same direction and mutually to top, the control precision of detection inserting test valve (300).
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| CN110131242B (en) * | 2019-06-17 | 2020-09-22 | 中广核核电运营有限公司 | Half-speed machine CVS valve testing device and testing method |
| CN111089096A (en) * | 2019-12-18 | 2020-05-01 | 上海擎度汽车科技有限公司 | ESC hydraulic performance test method based on flow control |
| CN112191836A (en) * | 2020-03-10 | 2021-01-08 | 绍兴汇友机电科技有限公司 | Intelligent fixed-point pouring equipment |
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| CN101813109B (en) * | 2010-04-02 | 2012-03-21 | 山东电力研究院 | Servo valve test system |
| CN106762890B (en) * | 2017-01-23 | 2018-01-30 | 中南大学 | A kind of test bed hydraulic control system of multifunction hydraulic |
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