CN110529466A - A kind of digital servo valve debugging apparatus - Google Patents
A kind of digital servo valve debugging apparatus Download PDFInfo
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- CN110529466A CN110529466A CN201910823267.3A CN201910823267A CN110529466A CN 110529466 A CN110529466 A CN 110529466A CN 201910823267 A CN201910823267 A CN 201910823267A CN 110529466 A CN110529466 A CN 110529466A
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- servo valve
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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
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/855—Testing of fluid pressure systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The embodiment of the invention provides a kind of digital servo valve debugging apparatus, comprising: elastic power load maintainer, elastic force measuring mechanism, position measuring mechanism, driving mechanism and fixed rack；Elastic power load maintainer, elastic force measuring mechanism, position measuring mechanism and driving mechanism are set on fixed rack, elastic power load maintainer is connect with elastic force measuring mechanism, elastic force measuring mechanism is connect with subject valve core of servo valve one end, and subject valve core of servo valve other end is connect with driving mechanism.A kind of digital servo valve debugging apparatus provided in an embodiment of the present invention, it is therefore an objective to detection valve core of servo valve move under that loading condition and micro-strain after performance, the load simulating device of adjustable elastic force can be applied to spool.
Description
Technical field
The present invention relates to load simulator technical field more particularly to a kind of digital servo valve debugging apparatus.
Background technique
Load simulator is driven based on servo motor to load valve core of servo valve movement, is applied by load simulating device
Loading moment.
Digital servo valve activator is power and control assembly in digital servo valve, at work, digital servo valve
Overcome valve core of the spool valve to move suffered resistance, accurate spool control valve valve core movement by driving mechanism, and then adjusts output flow.Number
Word servo valve controls flow output by the accurate spool control valve spool position of driving mechanism, driving mechanism output displacement
Accuracy will directly affect the flow output quality of digital servo valve.Digital servo valve valve core of the spool valve displacement have high resolution,
The reproducible, characteristics such as response is fast.Existing only several millimeters of big flow digital servo valve range, resolution number grade requires to reach
To 0.01mm, fault tolerance is less than 0.5%；The full amplitude step signal response time is less than 10ms.
Valve core of servo valve performance accuracy test loading device is used to detect the quilt under valve core of servo valve elastic loading conditions
Try the performance of flexible link；By applying different elastic load operating conditions, to detect the reliability after valve core of servo valve micro-strain, into
And improve the performance of big flow digital servo valve.It can not achieve simultaneously to spool currently, existing load simulator applies axial force
It is displaced precise measurement.
Summary of the invention
The embodiment provides a kind of digital servo valve debugging apparatus, to overcome the deficiencies of existing technologies.
To achieve the goals above, this invention takes following technical solutions.
A kind of digital servo valve debugging apparatus, comprising: elastic power load maintainer, elastic force measuring mechanism, position measurement
Mechanism, driving mechanism and fixed rack；
The elasticity power load maintainer, elastic force measuring mechanism, position measuring mechanism and driving mechanism are set to described solid
Determine on rack, the elasticity power load maintainer is connect with elastic force measuring mechanism, the elastic force measuring mechanism and subject servo
The connection of valve core one end, the subject valve core of servo valve other end are connect with the driving mechanism；
The position measuring mechanism includes: the first displacement sensor, second displacement sensor, the first displacement sensor branch
Frame, second displacement sensor stand, the first photographic plate and the second photographic plate, first displacement sensor are fixed on described first
Above displacement sensor bracket, the second displacement sensor is fixed on above the second displacement sensor stand, and described the
One sensor stand and the second displacement sensor stand are set to above the fixed rack, the first sensor bracket with
The second displacement sensor stand is located at the two sides of the subject valve core of servo valve, first photographic plate and the second sense
Tabula rasa is individually fixed on the subject valve core of servo valve.
Preferably, the subject valve core of servo valve is connect by valve core connector with the driving mechanism.
Preferably, first photographic plate and the second photographic plate pass through respectively photographic plate connector be fixed on it is described subject watch
Valve core is taken, the photographic plate connector includes: No. 1 photographic plate connector and No. 2 photographic plate connectors, No. 1 photographic plate
Connector is bolted with the photographic plate, and half is all had on No. 1 photographic plate connector and No. 2 photographic plate connectors
The identical semi-circular through hole of diameter, 2 semi-circular through hole are staggered relatively to be fastened by bolts to form circular through hole, the subject servo
Valve core is connect by the through-hole with the photographic plate connector.
Preferably, the elastic power load maintainer includes: elastic plate, 2 elastic plate fixing pieces and 2 elastic board mounts,
The both ends of the elastic plate are individually fixed between elastic plate fixing piece and elastic board mount, 2 elastic plate fixing pieces and 2 bullets
Property board mount be respectively fixedly connected with, 2 elastic board mounts opposition are set on the fixed rack, 2 elastic plates
Bracket is slidably connected with the fixed rack, and the rigidity of the elastic plate is adjustable；
The elastic plate is connect by elastic plate connector with the elastic force measuring mechanism.
Preferably, the elastic force measuring mechanism, comprising: force snesor, first straight line axle sleeve, second straight line axle sleeve,
One linear bearing bracket, the second straight line support of bearing, first straight line bearing and second straight line bearing, the first straight line bearing branch
Frame and the second straight line support of bearing are fixed by bolts in above the fixed rack, and the first straight line bearing adapter is first
In straight line axle sleeve, the first straight line axle sleeve is fixedly connected with the first straight line support of bearing, and the second straight line bearing adapter exists
In second straight line axle sleeve, the second straight line axle sleeve is fixedly connected with the second straight line support of bearing；
The first straight line bearing is connected with elastic plate connector and force snesor respectively by the first force snesor connector
It connects, the second straight line bearing is connect with force snesor and subject valve core of servo valve respectively by the second force snesor connector.
Preferably, the fixed rack includes: pedestal, is set to the cuboid strip centering item protruded above the pedestal
The inverted T-shaped groove vertical with centering item；
It is described elasticity board mount be slidably connected with the inverted T-shaped groove by T-nut, adjust it is described elasticity board mount it
Between distance to adjust the rigidity of the elastic plate；
The first straight line support of bearing and the second straight line support of bearing are placed in above the centering item, the first straight line
The bottom and second straight line support of bearing bottom of the support of bearing are equipped with groove, and the groove and the centering item are interference fitted.
It preferably, further include driving mechanism bracket, the driving mechanism bracket is fixed on above the fixed rack, described
Driving mechanism is fixedly connected with the driving mechanism bracket.
Preferably, the elastic plate fixing piece and elastic board mount be respectively set groove can centering, the recess width
Less than thickness of elastic plates, makes the fixed elastic plate of the groove, prevent the movement of the elastic plate.
Preferably, groove is arranged in the elastic plate fixing piece or elastic board mount, and the recess width is less than elastic plate thickness
Degree makes the fixed elastic plate of the groove, prevents the movement of the elastic plate.
Preferably, the elastic plate is processed by elastic material 60Si2CrVA.
As can be seen from the technical scheme provided by the above-mentioned embodiment of the present invention, the embodiment of the invention provides a kind of numbers
Formula servo valve debugging apparatus applies axial force by driving mechanism and loads to valve core of servo valve, and it is negative to apply elasticity simultaneously
Torque is carried, realizing being capable of precise measurement spool displacement while elastic force loads and is continuously adjustable；In addition, by photographic plate plate
It is connected with valve core of servo valve, measures the displacement of receiver board to realize the measurement to valve core of servo valve displacement and deformation, such installation
Mode, which eliminates to exist in test process, connects unsteady situation, improves experiment effect.
The additional aspect of the present invention and advantage will be set forth in part in the description, these will become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others
Attached drawing.
Fig. 1 is a kind of stereoscopic schematic diagram of digital servo valve debugging apparatus provided in an embodiment of the present invention；
Fig. 2 is a kind of stereoscopic schematic diagram of digital servo valve debugging apparatus provided in an embodiment of the present invention；
Fig. 3 is a kind of schematic top plan view of digital servo valve debugging apparatus provided in an embodiment of the present invention；
Fig. 4 is a kind of schematic front view of digital servo valve debugging apparatus provided in an embodiment of the present invention；
Fig. 5 is a kind of B-B schematic cross-sectional view of digital servo valve debugging apparatus provided in an embodiment of the present invention；
Fig. 6 is detailed schematic at a kind of a of digital servo valve debugging apparatus provided in an embodiment of the present invention；
Fig. 7 is detailed schematic at a kind of b of digital servo valve debugging apparatus provided in an embodiment of the present invention；
Fig. 8 is a kind of photographic plate connector schematic diagram provided in an embodiment of the present invention；
Fig. 9 is a kind of photographic plate connector schematic diagram provided in an embodiment of the present invention.
Appended drawing reference:
1, elastic power load maintainer；11, elastic plate；12, elastic plate fixing piece；13, elastic plate fixing piece；14, elastic plate
Bracket；15, elastic board mount；
2, elastic force measuring mechanism；21, force snesor；22, first straight line axle sleeve；23, second straight line axle sleeve；24, first
Linear bearing bracket；25, the second straight line support of bearing；26, first straight line bearing；27, second straight line bearing 27；
3, position measuring mechanism；31, first laser displacement sensor；32, second laser displacement sensor；33, first
Displacement sensor bracket；34, second displacement sensor stand；35, the first photographic plate；36, the second photographic plate；37, photographic plate connects
Part；371, No. 1 photographic plate connector；372, No. 2 photographic plate connectors；
4, driving mechanism；41, driving mechanism bracket；
5, fixed rack；51, pedestal；52, centering item；53, inverted T-shaped groove；54, groove；
6, elastic plate connector；7, the first force snesor connector；8, the second force snesor connector；
9, it is tested valve core of servo valve；10, valve core connector.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being arranged used in specification of the invention
Diction " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition
Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member
Part is " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or there may also be
Intermediary element.In addition, " connection " used herein or " coupling " may include being wirelessly connected or coupling.Wording used herein
"and/or" includes one or more associated any cells for listing item and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term) there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Should also
Understand, those terms such as defined in the general dictionary, which should be understood that, to be had and the meaning in the context of the prior art
The consistent meaning of justice, and unless defined as here, it will not be explained in an idealized or overly formal meaning.
In order to facilitate understanding of embodiments of the present invention, it is done by taking several specific embodiments as an example below in conjunction with attached drawing further
Explanation, and each embodiment does not constitute the restriction to the embodiment of the present invention.
The embodiment of the invention provides a kind of digital servo valve debugging apparatus, it is therefore an objective in detection valve core of servo valve negative
Under the conditions of load movement and micro-strain after performance, the load simulating device of adjustable elastic force can be applied to spool.
A kind of digital servo valve debugging apparatus as shown in Fig. 1 to 5, comprising: elastic power load maintainer 1, elastic force measurement
Mechanism 2, position measuring mechanism 3, driving mechanism 4, driving mechanism bracket 41 and fixed rack 5.Elastic power load maintainer 1, elasticity
Power measuring mechanism 2, position measuring mechanism 3 are set on fixed rack 5, and driving mechanism 4 is fixedly connected with driving mechanism bracket 41,
Driving arm 41 is fixed by bolts on fixed rack 5.Elastic power load maintainer 1 is connect with elastic force measuring mechanism 2, elasticity
Power measuring mechanism 1 is connect with subject 9 threaded one end of valve core of servo valve, and subject 9 other end of valve core of servo valve is connected by spool
Part 10 is threadedly coupled with driving mechanism 4, and subject 9 both ends of valve core of servo valve are locked using locking nut.
Fixed rack 5 includes: pedestal 51, centering item 52 and inverted T-shaped groove 53.It is equipped with groove 54 along 51 central axes of pedestal,
Centering item 52 is cuboid strip, and protrusion is set to 51 axial location of pedestal, is interference fitted with groove 54.Pedestal 51 is equipped with
Inverted T-shaped groove 53, for being slidably connected with elastic power load maintainer 1, inverted T-shaped groove 53 and centering item 52 are perpendicular.
Elastic power load maintainer 1 includes: elastic plate 11, elastic plate fixing piece 12 and 13, elastic board mount 14 and 15.Elasticity
Plate 11 is connect with elastic force measuring mechanism 2 by elastic plate connector 6, as shown in fig. 6, one end of elastic plate connector 6 passes through
Elastic plate 11, and locked using locking nut, the other end is connect with elastic force measuring mechanism 2.Elastic plate 11 is rectangle, by bullet
Property material 60Si2CrVA is processed into, and guarantees that its is with good performance.Elastic plate fixing piece 12 and 13 and elastic board mount 14
The groove for being respectively equipped with centering with 15, the both ends of elastic plate 11 are respectively placed in groove and fix, and recess width is less than elastic plate
Thickness prevents elastic plate mobile.Elastic plate fixing piece 12 and elastic board mount 14 are bolted, 13 He of elastic plate fixing piece
Elastic board mount 15 is bolted.Elastic board mount 14 and 15 be it is inverted T shaped, be located at the two sides of centering item, it is opposite to set
It sets.The pedestal of elastic board mount 14 and 15 passes through T-nut respectively and is slidably connected with inverted T-shaped groove 53, according to required elasticity
Power size adjusts the distance between elastic board mount to adjust the rigidity of latch plate.
The key that driving mechanism load simulation of the invention is realized is the loading form and loading accuracy of load force.According to
The elastic force of previous design experiences, mechanical load simulator is realized by steel spring plate deformation.
The size of elastic force is related with spring plate material and size in the present embodiment, according to the mechanical property of 60Si2CrVA
Bending normal stresses [σ]=620.7Mpa allowable, allowable shear stress [τ]=372.4Mpa, elastic modulus E=2.06*105Mpa。
Elastic plate learns that the ratio between span L and cross-sectional height h are greater than or equal to 5 by shear bending, by elasticity analysis
When, it is suitable for pure bending situation.SoBy maximum (normal) stress calculation formula (1):
With the maximum shear stress calculation formula (2):
W in formulaZFor bending sections coefficient, b, h are respectively cross-sectional width, height, and A is cross-sectional area.
The elastic plate specification selected in the present embodiment is respectively b=5mm, h=27mm, L=185mm and b=5mm, h=
27mm, L=124mm.According to desired specified elastic loading force F=1200N, maximum (normal) stress can be calculated and maximum shear is answered
Power can must be all satisfied requirement.
Elastic force measuring mechanism 2 includes: force snesor 21, first straight line axle sleeve 22, second straight line axle sleeve 23, first straight line
The support of bearing 24, the second straight line support of bearing 25, first straight line bearing 26 and second straight line bearing 27.First straight line bearing 26 is logical
It crosses the first force snesor connector 7 to connect with elastic plate connector 6 and force snesor 21 respectively, the first force snesor connector 7
It is locked with the junction of elastic plate connector 6 by locking nut, prevents the screw bolt loosening in axial movement.Second straight line bearing
27 are connect with force snesor 21 and subject valve core of servo valve 9 respectively by the second force snesor connector 8, and the second force snesor connects
Fitting 8 and subject 9 junction of valve core of servo valve are locked by locking nut.The first straight line support of bearing 24 and second straight line bearing
Bracket 25 is drum bracket, is respectively placed in 52 top of centering item, the bottom of the first straight line support of bearing 24 and second straight line bearing
25 bottom of bracket is equipped with groove, and groove and centering item are interference fitted, the first straight line support of bearing 24 and the second straight line support of bearing
25 are also fixedly connected by bolt with pedestal 51.First straight line bearing 26 fits in first straight line axle sleeve 22, first straight line axis
Set 22 is bolted to connection with the first straight line support of bearing 24.Second straight line bearing 27 fits in second straight line axle sleeve 23
In, second straight line axle sleeve 23 is bolted to connection with the second straight line support of bearing 25.
Position measuring mechanism 3 includes: first laser displacement sensor 31, the displacement of second laser displacement sensor 32, first
Sensor stand 33, second displacement sensor stand 34, the first photographic plate 35, the second photographic plate 36 and 2 photographic plate connector
37.First laser displacement sensor 31 is connect with the first displacement sensor bracket 33 by bolt and nut, and second laser displacement passes
Sensor 32 is connect with second displacement sensor stand 34 by bolt and nut.First sensor bracket 33 and second displacement sensor
Bracket 34 is drum bracket, is fixed by bolts in 51 top of pedestal respectively, and first sensor bracket 33 and second displacement sense
Device bracket 34 is located at the two sides of subject valve core of servo valve 9, the first photographic plate 35 and the second photographic plate 36 and is connected by photographic plate
Fitting 37 is individually fixed on subject valve core of servo valve 9.Laser displacement sensor and photographic plate apart from adjustable, setting properly away from
From to meet measurement request.
As Figure 7-9, photographic plate connector 37 includes: No. 1 photographic plate connector 371 and No. 2 photographic plate connector
372.All have the identical semi-circular through hole of radius on No. 1 photographic plate connector 371 and No. 2 photographic plate connector 372,2 half
Circular through hole is staggered relatively to be fastened by bolts to form circular through hole, and convenience is coaxial with spool and is bonded.It is tested valve core of servo valve 9
It is connect by circular through hole with photographic plate connector 37, No. 1 photographic plate connector 371 is also bolted with photographic plate.
This embodiment offers a kind of digital servo valve debugging apparatus, test process is as follows: computer control driving
Mechanism drives complete machine movement, and elastic being hit by a bullet property of power load maintainer plate stress bending is granted elastic force to subject valve core of servo valve, led to
Laser displacement sensor detection subject valve core of servo valve deformation and force snesor detection elastic force size are crossed, by displacement and bullet
Property power acquisition realize to subject valve core of servo valve performance measurement.
In conclusion the invention has the following advantages:
1, the displacement of tested valve core of servo valve of the invention and deflection use laser displacement sensor, compared to previous research
In stay wire displacement sensor, magnetostrictive displacement sensor, grating displacement sensor, differential displacement sensor, have preferable
Measurement accuracy, measurement accuracy is up to 1 μm.
2, in measuring principle, using the position of triangulation methods detection RS-CMOS reflected light, by detecting the variation
Just it is capable of measuring the position of testee.Photographic plate plate is connected with valve core of servo valve, measures the displacement of photographic plate to realize to watching
The measurement of valve core displacement and deformation is taken, such mounting means, which eliminates to exist in test process, connects unsteady situation, mentions
High experiment effect.
3, T-nut is arranged in elastic power load maintainer, passes through the position for changing T-nut in the length of replacement elastic plate,
The method can reduce the quantity of part and save processing cost.In view of servo valve arrangement being hit by a bullet property regulating device is connected thereto
The fixed form of mechanism, its fixed form will be consistent with truth in actual mechanical load simulator, it should subtract as far as possible
Fixed interval (FI) between small regulating device and its mating bindiny mechanism, the present apparatus are positioned by the elastic plate mode of stepping up
Fastening, eliminates the gap of junction to the full extent.
Those of ordinary skill in the art will appreciate that: attached drawing is the schematic diagram of one embodiment, module in attached drawing or
Process is not necessarily implemented necessary to the present invention.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for device or
For system embodiment, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to method
The part of embodiment illustrates.Apparatus and system embodiment described above is only schematical, wherein the conduct
The unit of separate part description may or may not be physically separated, component shown as a unit can be or
Person may not be physical unit, it can and it is in one place, or may be distributed over multiple network units.It can root
According to actual need that some or all of the modules therein is selected to achieve the purpose of the solution of this embodiment.Ordinary skill
Personnel can understand and implement without creative efforts.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims
Subject to.
Claims (10)
1. a kind of digital servo valve debugging apparatus characterized by comprising elastic power load maintainer, elastic force measuring mechanism,
Position measuring mechanism, driving mechanism and fixed rack；
The elasticity power load maintainer, elastic force measuring mechanism, position measuring mechanism and driving mechanism are set to the fixed station
On frame, the elasticity power load maintainer is connect with elastic force measuring mechanism, the elastic force measuring mechanism and subject servo valve valve
The connection of core one end, the subject valve core of servo valve other end are connect with the driving mechanism；
The position measuring mechanism includes: the first displacement sensor, second displacement sensor, the first displacement sensor bracket,
Two displacement sensor brackets, the first photographic plate and the second photographic plate, first displacement sensor are fixed on first displacement
Above sensor stand, the second displacement sensor is fixed on above the second displacement sensor stand, and described first passes
Sensor bracket and the second displacement sensor stand are set to above the fixed rack, the first sensor bracket with it is described
Second displacement sensor stand is located at the two sides of the subject valve core of servo valve, first photographic plate and the second photographic plate
It is individually fixed on the subject valve core of servo valve.
2. the apparatus of claim 2, which is characterized in that the subject valve core of servo valve passes through valve core connector and institute
State driving mechanism connection.
3. device according to claim 1 or 2, which is characterized in that first photographic plate and the second photographic plate lead to respectively
Cross photographic plate connector and be fixed on the subject valve core of servo valve, the photographic plate connector include: No. 1 photographic plate connector and
No. 2 photographic plate connectors, No. 1 photographic plate connector are bolted with the photographic plate, No. 1 photographic plate connection
The identical semi-circular through hole of radius is all had on part and No. 2 photographic plate connectors, 2 semi-circular through hole are staggered relatively to pass through bolt
Fastening forms circular through hole, and the subject valve core of servo valve is connect by the through-hole with the photographic plate connector.
4. device according to claim 3, which is characterized in that the elasticity power load maintainer includes: elastic plate, 2 bullets
Property plate fixing piece and 2 elastic board mounts, the both ends of the elastic plate be individually fixed in elastic plate fixing piece and elastic board mount
Between, 2 elastic plate fixing pieces are respectively fixedly connected with 2 elastic board mounts, and described 2 elastic board mount opposition are set to institute
It states on fixed rack, described 2 elastic board mounts are slidably connected with the fixed rack, and the rigidity of the elastic plate is adjustable；
The elastic plate is connect by elastic plate connector with the elastic force measuring mechanism.
5. device according to claim 4, which is characterized in that the elastic force measuring mechanism, comprising: force snesor,
One linear axis set, second straight line axle sleeve, the first straight line support of bearing, the second straight line support of bearing, first straight line bearing and second
Linear bearing, the first straight line support of bearing and the second straight line support of bearing are fixed by bolts on the fixed rack
Side, for the first straight line bearing adapter in first straight line axle sleeve, the first straight line axle sleeve and the first straight line support of bearing are solid
Fixed connection, the second straight line bearing adapter is in second straight line axle sleeve, the second straight line axle sleeve and second straight line bearing branch
Frame is fixedly connected；
The first straight line bearing is connect with elastic plate connector and force snesor respectively by the first force snesor connector, institute
It states second straight line bearing and is connect respectively with force snesor and subject valve core of servo valve by the second force snesor connector.
6. device according to claim 5, which is characterized in that the fixed rack includes: pedestal, is set to the pedestal
The cuboid strip centering item of top protrusion and the inverted T-shaped groove vertical with centering item；
The elasticity board mount is slidably connected with the inverted T-shaped groove by T-nut, is adjusted between the elastic board mount
Distance is to adjust the rigidity of the elastic plate；
The first straight line support of bearing and the second straight line support of bearing are placed in above the centering item, the first straight line bearing
The bottom and second straight line support of bearing bottom of bracket are equipped with groove, and the groove and the centering item are interference fitted.
7. the apparatus according to claim 1, which is characterized in that it further include driving mechanism bracket, the driving mechanism bracket
It is fixed on above the fixed rack, the driving mechanism is fixedly connected with the driving mechanism bracket.
8. device according to claim 4, which is characterized in that the elastic plate fixing piece and elastic board mount are respectively set
Groove can centering, the recess width is less than thickness of elastic plates, makes the fixed elastic plate of the groove, prevent the elastic plate
It is mobile.
9. device according to claim 4, which is characterized in that the elastic plate fixing piece or elastic board mount setting are recessed
Slot, the recess width are less than thickness of elastic plates, make the fixed elastic plate of the groove, prevent the movement of the elastic plate.
10. device according to claim 4, which is characterized in that the elastic plate is processed by elastic material 60Si2CrVA and made
At.
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| CN201910823267.3A CN110529466B (en) | 2019-09-02 | 2019-09-02 | Digital servo valve debugging device |
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| CN201910823267.3A CN110529466B (en) | 2019-09-02 | 2019-09-02 | Digital servo valve debugging device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709727A (en) * | 2020-12-10 | 2021-04-27 | 上海航天控制技术研究所 | Test system, debugging system and test method of direct-acting hydraulic valve |
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| CN106545549A (en) * | 2016-11-24 | 2017-03-29 | 北京交通大学 | Servo valve stability experiment loading unit |
| CN108506257A (en) * | 2018-02-07 | 2018-09-07 | 同济大学 | A kind of threeway jet pipe servo valve jet axis track debugging apparatus and method |
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| SU821775A1 (en) * | 1979-06-29 | 1981-04-15 | Московский Автомобильный Завод Им.И.A.Лихачева (Производственноеобъединение Зил) | Stand for testing hydraulic units |
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| CN102954064A (en) * | 2011-08-23 | 2013-03-06 | 上海宝钢设备检修有限公司 | System and method for detecting force motor transitional motion type three-way servo valve |
| CN102913553A (en) * | 2012-10-22 | 2013-02-06 | 浙江工业大学 | Multi-layer air floatation hanging device capable of performing two-dimensional friction-free long-distance movement |
| CN204649414U (en) * | 2015-05-22 | 2015-09-16 | 吉林省汽车零部件研发中心有限公司 | Automobile Clutch Plate Spring suppresses load testing machine |
| CN105841647A (en) * | 2016-03-22 | 2016-08-10 | 华中科技大学 | Electro-hydraulic servo valve overlap value measuring device and measuring method thereof |
| CN106545549A (en) * | 2016-11-24 | 2017-03-29 | 北京交通大学 | Servo valve stability experiment loading unit |
| CN108506257A (en) * | 2018-02-07 | 2018-09-07 | 同济大学 | A kind of threeway jet pipe servo valve jet axis track debugging apparatus and method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709727A (en) * | 2020-12-10 | 2021-04-27 | 上海航天控制技术研究所 | Test system, debugging system and test method of direct-acting hydraulic valve |
| CN112709727B (en) * | 2020-12-10 | 2022-12-13 | 上海航天控制技术研究所 | Debugging system of direct-acting hydraulic valve |
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| CN110529466B (en) | 2020-11-10 |
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