CN107387502A - The integrated test system and method for a kind of valve body - Google Patents
The integrated test system and method for a kind of valve body Download PDFInfo
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- CN107387502A CN107387502A CN201710787081.8A CN201710787081A CN107387502A CN 107387502 A CN107387502 A CN 107387502A CN 201710787081 A CN201710787081 A CN 201710787081A CN 107387502 A CN107387502 A CN 107387502A
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- valve
- test
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- hydraulic fluid
- way valve
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of integrated test system of valve body and method, it is related to valve body test device 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 second two position three-way valve and the 3rd 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 the 3rd two position three-way valve are connected with the both ends of test cylinder, 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 present invention 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
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 technology
Hydraulic technique is after every field is widely used in, and the possibility to break down also increases therewith, hydraulic system
Failure have the characteristics that it is disguised, become transsexual and risk factor diversity, so in tracing trouble, not only need skilled skill
Art personnel, while also need to 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 in examination, test data is inaccurate.
In view of the above-mentioned problems, patent announcement number is CN104458161A Chinese patent, it is proposed that a kind of auxiliary braking is used
Normally open solenoid valve test device and method of testing, including differential pressure pick-up and first row air valve and the 4th air valve are connected thereto, it is poor
The pipeline that pressure sensor connects with the 4th air valve connects with the 3rd 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 the 3rd air valve, the second air valve connect the first orthobaric volume block, and part to be measured passes through row
Tracheae connects second row air valve, pressure sensor and the second orthobaric volume block respectively.Patent announcement number is CN204783953U
Chinese patent, it is proposed that a kind of synthesis energy saving experimental rig of magnetic valve and hydraulic cylinder reliability, including hydraulic pump, hydraulic pump
The first check valve is connected with, the oil-out of the first check valve connects force feed filter and overflow valve, presses oil the fuel-displaced of filter respectively
Mouth connects two magnetic valves and hydraulic cylinder test module and accumulator package respectively.
Above-mentioned patent can only carry out single performance test to valve body, and a hydraulic system is by multiple different types of valve body groups
Into, once hydraulic system failure, usually needs to detect the technical indicator of a variety of different Hydraulic Elements, could diagnose the hair that is out of order
Raw position and the root of generation.In order to avoid interfering, detection process is that single valve body is carried out alone, and this just needs
The hydraulic test bench of more set single performances, will certainly correspondingly improve testing cost.
The content of the invention
The problem of for valve body detection object and single mode, comprehensive the purpose of the present invention is to propose to a kind of valve body are surveyed
Test system and method, a variety of different types of valve bodies can be tested simultaneously and detect the multiple performance of valve body.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of integrated test system of valve body, including fuel tank, the fuel tank are connected with the first hydraulic pump, and first hydraulic pump connects
Flow speed control valve is connected to, 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 second two position three-way valve, the hydraulic fluid port of second two position three-way valve
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 rodless cavity and
First pressure sensor, the hydraulic fluid port B of electromagnetism test valve are connected with the hydraulic fluid port P of the 3rd two position three-way valve, described three or two
The hydraulic fluid port A of triple valve is connected with the rod chamber and second pressure sensor of the test cylinder, and the hydraulic fluid port T of the electromagnetism test valve is returned
Oil enters the fuel tank；
The hydraulic fluid port A of ratio test valve is connected with the hydraulic fluid port T and load testing module of second two position three-way valve simultaneously
One end, the hydraulic fluid port B of the ratio test valve are connected with the hydraulic fluid port T of the 3rd two position three-way valve and the load testing mould simultaneously
The other end of 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 to top with the test cylinder
The loading cylinder of experiment, the fuel tank are connected with the second hydraulic pump, and second hydraulic pump is connected with the hydraulic fluid port P of three-position four-way valve,
The hydraulic fluid port A of the three-position four-way valve is connected with the rod chamber of the loading cylinder, and the hydraulic fluid port B of the three-position four-way valve is connected with described
The rodless cavity of cylinder is loaded, the hydraulic fluid port T oil returns of the three-position four-way valve enter the fuel tank.
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 second two position three-way valve and the 3rd 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, the flow speed control valve is connected with the hydraulic fluid port P of two position two-way valve, the hydraulic fluid port A connections 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.
Pass through above-mentioned technical proposal, performance detection and accuracy detection can also be carried out to inserting test valve, due to inserted valve
The characteristic of itself, enough hydraulic energies are improved by accumulator.
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.
A kind of integrated test facility of valve body, including following experiment,
Magnetic valve testing experiment：The electromagnetism test valve is installed, sets up the flow speed control valve, starts first hydraulic pump, it is described
Second two position three-way valve and the 3rd two position three-way valve obtain electric, and electromagnetism test valve obtains electric, passes through the fortune of the test cylinder
The oil filling capacity of electromagnetism test valve described in dynamic parameter acquiring；Start second hydraulic pump, the three-position four-way valve obtain it is electric, it is described
Load cylinder and the test cylinder moves and mutually to top, detects the control accuracy that the electromagnetism tests valve in the same direction；
Proportioning valve testing experiment：The ratio test valve is installed, sets up the flow speed control valve, starts first hydraulic pump, it is described
Ratio test valve obtains electric, and the kinematic parameter for passing through the test cylinder obtains the oil filling capacity that the ratio tests valve；Described second
Two position three-way valve and the 3rd two position three-way valve obtain it is electric, pass through described in pressure difference detection ratio test valve load capacity；Open
Move second hydraulic pump, the three-position four-way valve obtain it is electric, it is described loading cylinder with it is described test cylinder in the same direction motion and mutually to push up,
Detect the control accuracy of the ratio test valve；
Inserted valve testing experiment：The inserting test valve is installed, sets up the flow speed control valve, starts first hydraulic pump, it is described
Two position two-way valve obtains electric, and first two position three-way valve and the 3rd two position three-way valve obtain electric, pass through the fortune of the test cylinder
The oil filling capacity of inserting test valve described in dynamic parameter acquiring；Start second hydraulic pump, the three-position four-way valve obtain it is electric, it is described
Load cylinder motion in the same direction with the test cylinder and mutually to top, detect the control accuracy that valve is tested in the inserting.
Pass through above-mentioned technical proposal, electromagnetism test valve, ratio test valve and inserting test valve can carry out performance detection
And accuracy detection, ratio test valve can also carry out load detecting, performance detection tests the oil filling capacity of valve body, accuracy detection test
The control accuracy of valve body, load detecting test the maximum working pressure (MWP) of valve body.By integrating multiple detecting systems, reasonable employment money
Source, reduce testing cost so that single hydraulic test bench can carry out a variety of tests to different valve bodies, while ensure not do mutually
Disturb, test is more quick and convenient.
Compared with prior art, beneficial effects of the present invention are as follows：
Whole system can carry out different detection, the variation of test to different valve bodies, while ensure in detection process mutually not
Interference, ensures the precision of detection, and the power of test of synthesization make it that test is quicker, convenient, cost is low, applied widely.
Brief description of the drawings
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.
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；6th, the 3rd 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 hydraulic pump；13rd, three-position four-way valve；14th, the first test oil circuit；15th, the second test oil circuit；16th, it is unidirectional
Valve；17th, sequence valve；18th, the 3rd pressure sensor；19th, the 4th pressure sensor；20th, two position two-way valve；21st, accumulator；22、
First goes out oil strainer；23rd, the first return filter；24th, second goes out oil strainer；25th, the second return filter；26th, pressure
Relay；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；34th, forced air cooler；35th, flowmeter；100th, electromagnetism test valve；200th, ratio is tested
Valve；300th, inserting test valve.
Embodiment
In order that the purpose of the present invention, technical scheme and beneficial effect are clearer, with reference to embodiment and accompanying drawing 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-out 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 be parallel with check valve
16 and pressure switch 26.Check valve 16 in parallel can prevent from first to go out oil strainer 22 blocking, 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 flow speed control valve 3.Pass through
Flow speed control valve 3 can be with the oil inlet quantity of regulating system.
Flow speed control valve 3 is simultaneously in parallel and is communicated with the hydraulic fluid port P of electromagnetism test valve 100, the hydraulic fluid port P and two of 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
First pressure sensor 8, the hydraulic fluid port B of electromagnetism test valve 100 are connected with the hydraulic fluid port P of the 3rd two position three-way valve 6, the 3rd 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 returns of electromagnetism test valve 100 enter
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.Whole loop is tested for electromagnetism
The performance detection of valve 100, by testing the motion of cylinder 7 and the data to first pressure sensor 8 and second pressure sensor 9
Detect the oil filling capacity of electromagnetism test 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 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 the 3rd two position three-way valve 6 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 position three-way valve 4, the second two position three-way valve 5 and the 3rd two position three-way valve 6 are opened, whole loop is the property that ratio tests valve 200
It can detect, by testing the motion of cylinder 7 and the Data Detection ratio to 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 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, sequence valve 17 on the overlapping oil circuit of oil circuit 15
Oil outlet end be connected with flowmeter 35 simultaneously, the oil outlet end 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 the 3rd pressure sensor 18 of proportional test valve 200, the oil outlet end of the first test oil circuit 14 and the second test
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
The two position three-way valve 6 of port valve 5 and the 3rd 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 load capacity of the pressure difference of 4th pressure sensor 19 and the data acquisition ratio test different station of valve 200 of flowmeter 35, is obtained
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
300 hydraulic fluid port A, the hydraulic fluid port B of inserting test valve 300 are connected with the hydraulic fluid port P of the first two position three-way valve 4.Whole loop is surveyed for inserting
The performance detection of valve 300 is tried, enough hydraulic energies are improved by accumulator 21, by testing the motion 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 loading stand 10, and test cylinder 7 is set in the same direction with loading stand 10, loads stand 10
The other end be fixed with test cylinder 7 formed to top experiment loading cylinder 11, load cylinder 11 piston rod and test cylinder 7 piston
Bar 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 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
Go out oil strainer 24 to block.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
The rod chamber of loading cylinder 11 is connected to, the hydraulic fluid port B of three-position four-way valve 13 is connected with the rodless cavity of loading cylinder 11, three-position four-way valve 13
Hydraulic fluid port T oil returns enter 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.Whole loop forms control oil circuit to loading cylinder 11, so as to testing cylinder 7
Formed and top is tested, three-position four-way valve 13 can test electromagnetism valve 100 respectively after opening, ratio tests valve 200 and inserting is surveyed
Try valve 300 and carry out accuracy detection, the control accuracy of each valve body is detected with this.
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.
The operation principle of the present invention 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, performance can be carried out to it
Detection and accuracy detection, pass through first pressure sensor 8 and the detection test cylinder 7 of second pressure sensor 9 both ends during performance detection
Pressure, electromagnetism test valve 100 oil filling capacity can be embodied in test cylinder 7 piston rod motion on, displacement transducer 32
The exercise data of test cylinder 7 can be accurately obtained with velocity sensor 33；After starting the second hydraulic pump 12 during accuracy detection, loading
Cylinder 11, mutually to top, forms the resistance of motion to test cylinder 7, valve is tested according to the motion detection electromagnetism of test cylinder 7 with test cylinder 7
100 control accuracy.
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, during load detecting, ratio test valve
200 fluid respectively enters the first test oil circuit 14 and the second test oil circuit 15, passes through the 3rd pressure sensor 18 and the 4th pressure
The data acquisition pressure differential of force snesor 19, so as to obtain the maximum working pressure (MWP) of ratio test valve 200.
A kind of integrated test facility of valve body, including following experiment,
Magnetic valve testing experiment：Electromagnetism test valve 100 is installed, flow speed control valve 3 is set up, starts the first hydraulic pump 2, the second two-position three way
The two position three-way valve 6 of valve 5 and the 3rd it is electric, electromagnetism test valve 100 it is electric, by test cylinder 7 kinematic parameter obtain electromagnetism test
The oil filling capacity of valve 100；Start the second hydraulic pump 12, three-position four-way valve 13 it is electric, motion is simultaneously in the same direction for loading cylinder 11 and test cylinder 7
Mutually to top, the control accuracy of detection electromagnetism test valve 100；
Proportioning valve testing experiment：The proportion of installation tests valve 200, sets up flow speed control valve 3, starts the first hydraulic pump 2, ratio test valve
200 obtain the oil filling capacity of electric kinematic parameter acquisition ratio test valve 200 by testing cylinder 7；Second two position three-way valve 5 and
Three two position three-way valves 6 must be electric, passes through the load capacity that pressure difference detection ratio tests valve 200；Start the second hydraulic pump 12, three
Four-way valve 13 it is electric, loading cylinder 11 with test cylinder 7 in the same direction motion and mutually to top, detection ratio test valve 200 control accuracy；
Inserted valve testing experiment：Installation inserting test valve 300, sets up flow speed control valve 3, starts the first hydraulic pump 2, two position two-way valve 20
It is electric, the first two position three-way valve 4 and the 3rd two position three-way valve 6 it is electric, the kinematic parameter by testing cylinder 7 obtains inserting test valve
300 oil filling capacity；Start the second hydraulic pump 12, three-position four-way valve 13 electric, loading cylinder 11 and test cylinder 7 motion simultaneously phase in the same direction
Mutually to top, the control accuracy of detection inserting test valve 300.
Effective effect of the present invention is as follows：
Whole system can carry out different detections, the variation of test, electromagnetism test valve 100, ratio test to different valve bodies
Valve 200 and inserting test valve 300 can carry out performance detection and accuracy detection, and ratio test valve 200 can also carry out load inspection
Survey, performance detection tests the oil filling capacity of valve body, and accuracy detection tests the control accuracy of valve body, and load detecting test valve body is most
Big operating pressure.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 the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some 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, it is characterised in that including fuel tank (1), the fuel tank (1) is connected with the first hydraulic pressure
Pump (2), first hydraulic pump (2) are connected with flow speed control valve (3), the flow speed control valve (3) while are connected with electromagnetism test valve (100)
Hydraulic fluid port P and ratio test valve (200) hydraulic fluid port P；
The hydraulic fluid port A of the 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 the 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 3rd two position three-way valve (6) are connected with the rod chamber and the of the test cylinder (7)
Two pressure sensors (9), the hydraulic fluid port T oil returns of the electromagnetism test valve (100) enter the fuel tank (1)；
The hydraulic fluid port A of the 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
One end of die trial block, the hydraulic fluid port B of the ratio test valve (200) are connected with the hydraulic fluid port T of the 3rd two position three-way valve (6) simultaneously
With the other end of the load testing module, the hydraulic fluid port T oil returns of the ratio test valve (200) enter the fuel tank (1)；
The test cylinder (7) is placed in one end of loading stand (10), and described loading stand (10) other end is provided with and the survey
Try cylinder (7) and form the loading cylinder (11) tested top, the fuel tank (1) is connected with the second hydraulic pump (12), second hydraulic pressure
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 loading cylinder
(11) rod chamber, the hydraulic fluid port B of the three-position four-way valve (13) are connected with the rodless cavity of the loading cylinder (11), described three four
The hydraulic fluid port T oil returns of port valve (13) enter the fuel tank (1).
2. the integrated test system of valve body according to claim 1, it is characterised in that the load testing module includes two
Bar intersects and the first test oil circuit (14) of one-way flow and second tests oil circuit (15), the first test oil circuit
(14) and it is described second test oil circuit (15) be provided with two check valves (16) and be arranged at 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 order
The oil outlet end of valve (17), the oil inlet end of the first test oil circuit (14) and the second test oil circuit (15) connects simultaneously
State the hydraulic fluid port A and the 3rd pressure sensor (18) of ratio test valve (200), the oil outlet end of the first test oil circuit (14) and institute
State the oil inlet end of the second test oil circuit (15) while the hydraulic fluid port B and the 4th pressure sensing of valve (200) are tested in connection with the ratio
Device (19).
3. the integrated test system of valve body according to claim 2, it is characterised in that the flow speed control 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 the 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, it is characterised in that first hydraulic pump (2) and institute
State and first is provided between flow speed control valve (3) goes out oil strainer (22), the hydraulic fluid port T of the electromagnetism test valve (100) and the ratio
The first return filter (23), second liquid are provided between the hydraulic fluid port T junctions of two streams and the fuel tank (1) of test valve (200)
Second, which is provided with, between the hydraulic fluid port P of press pump (12) and the three-position four-way valve (13) goes out oil strainer (24), the 3-position 4-way
The second return filter (25) is 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, it is characterised 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, 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 is fuel-displaced
The first overflow valve (28) is provided between the oil inlet end of the oil outlet end of filter (24) and second return filter (25).
7. the integrated test system of valve body according to claim 6, it is characterised in that the electromagnetism test valve (100)
The hydraulic fluid port P of hydraulic fluid port P and ratio test valve (200) collaborates and is connected with the first stop valve (29), the 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
Two overflow valves (31), the overflow valve are connected with first return filter (23).
8. the integrated test system of valve body according to claim 1, it is characterised in that the piston rod of the test cylinder (7)
On be provided with displacement transducer (32) and velocity sensor (33).
9. the integrated test system of valve body according to claim 5, it is characterised in that the oil of the three-position four-way valve (13)
Mouth T and described second is provided with forced air cooler (34) between going out oil strainer (24).
A kind of 10. integrated test facility of valve body, it is characterised in that tested including following,
Magnetic valve testing experiment：The electromagnetism test valve (100) is installed, sets up the flow speed control valve (3), starts first hydraulic pressure
Pump (2), second two position three-way valve (5) and the 3rd two position three-way valve (6) must be electric, the electromagnetism test valve (100)
Electricity, the oil filling capacity of the electromagnetism test valve (100) is obtained by the kinematic parameter of the test cylinder (7)；Start described second
Hydraulic pump (12), the three-position four-way valve (13) it is electric, it is described loading cylinder (11) with it is described test cylinder (7) in the same direction move simultaneously it is mutual
To top, the control accuracy that the electromagnetism tests valve (100) is detected；
Proportioning valve testing experiment：The ratio test valve (200) is installed, sets up the flow speed control valve (3), starts first hydraulic pressure
Pump (2), ratio test valve (200) it is electric, the kinematic parameter for passing through the test cylinder (7) obtains the ratio and tests valve
(200) oil filling capacity；Second two position three-way valve (5) and the 3rd two position three-way valve (6) must be electric, examined by pressure differential
Survey the load capacity of the ratio test valve (200)；Start second hydraulic pump (12), the three-position four-way valve (13) obtains
Electricity, the loading cylinder (11) are moved and mutually to top, detect the ratio test valve (200) in the same direction with the test cylinder (7)
Control accuracy；
Inserted valve testing experiment：The inserting test valve (300) is installed, sets up the flow speed control valve (3), starts first hydraulic pressure
Pump (2), the two position two-way valve (20) must be electric, and first two position three-way valve (4) and the 3rd two position three-way valve (6) obtain
Electricity, the oil filling capacity of the inserting test valve (300) is obtained by the kinematic parameter of the test cylinder (7)；Start described second
Hydraulic pump (12), the three-position four-way valve (13) it is electric, it is described loading cylinder (11) with it is described test cylinder (7) in the same direction move simultaneously it is mutual
To top, the control accuracy that valve (300) is tested in the inserting is detected.
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| CN201710787081.8A CN107387502B (en) | 2017-09-04 | 2017-09-04 | A kind of integrated test system and method for valve body |
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| CN109374289A (en) * | 2018-12-26 | 2019-02-22 | 江苏里斯特通用机械制造有限公司 | Throttle flow rate test device and its test method |
| CN110131242A (en) * | 2019-06-17 | 2019-08-16 | 中广核核电运营有限公司 | A kind of Half Speed machine CVS valve test device and test 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 |
| CN111677717A (en) * | 2020-05-19 | 2020-09-18 | 江苏理工学院 | Hydraulic system of hydraulic valve test bench |
| 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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| Publication number | Publication date |
|---|---|
| CN107387502B (en) | 2019-06-14 |
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