CN108591584A - A kind of Piexoelectric actuator of control rotary valve - Google Patents
A kind of Piexoelectric actuator of control rotary valve Download PDFInfo
- Publication number
- CN108591584A CN108591584A CN201810549089.5A CN201810549089A CN108591584A CN 108591584 A CN108591584 A CN 108591584A CN 201810549089 A CN201810549089 A CN 201810549089A CN 108591584 A CN108591584 A CN 108591584A
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder body
- piston cylinder
- rotary valve
- shoe cream
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000006071 cream Substances 0.000 claims abstract description 39
- 239000007921 spray Substances 0.000 claims abstract description 20
- 239000000446 fuel Substances 0.000 claims abstract description 13
- 239000012530 fluid Substances 0.000 claims description 23
- 238000002955 isolation Methods 0.000 claims description 18
- 230000006837 decompression Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 10
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/088—Characterised by the construction of the motor unit the motor using combined actuation, e.g. electric and fluid actuation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/004—Actuating devices; Operating means; Releasing devices actuated by piezoelectric means
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B2015/206—Combined actuation, e.g. electric and fluid actuated
Abstract
The invention discloses a kind of Piexoelectric actuators of control rotary valve, including piezoelectrics, first piston cylinder body, second piston cylinder body, blade and control rotary valve, the first shoe cream room is equipped in first piston cylinder body, the second shoe cream room is set in second piston cylinder body, first piston is equipped in first shoe cream room, the First piston bar being fixedly connected with piezoelectrics is installed on first piston, first piston cylinder body is installed with sliding channel, second piston is equipped in second shoe cream room, second piston is equipped with second piston bar, second piston cylinder body is equipped with spray bar, blade drive control rotary valve rotates, it is communicated with fuel feed pump on second shoe cream room.The present invention has the following advantages and effects：The present invention has many advantages, such as that precision is high, responds fast, small power consumption, long lifespan, compact-sized, environmental protection and energy saving；And the working frequency of electrohydraulic system can be greatly improved by piezoelectricity control rotary valve, meet the actual active demand of engineering.
Description
Technical field
The present invention relates to a kind of valve drive device, more particularly to a kind of Piexoelectric actuator of control rotary valve.
Background technology
Electrohydraulic system has the characteristics that power is big, good reliability, high degree of automation, and as electrohydraulic system works frequency
The constantly raising of rate, electrohydraulic system are obtained by these advantages in fields such as mechanical transport, space flight and aviation, ship, environmental simulations
To being widely applied and develop.Control valve is the key that the raising of electrohydraulic system working frequency, although current electrohydraulic servo valve
Performance is greatly improved, and system operating frequency is greatly improved, but this is much unable to reach engineering test
It is required that however servo valve ring frequency promotion have been enter into bottleneck, the progress of every bit is required for the input of great number, and manufacturing cost pole
It is high.In the case, the control valve of special construction and material is constantly proposed, piezoelectric material is one come the control rotary valve driven
It is a to feel free to try.Because of the excellent physical property of piezoelectric material, piezo electric valve is for traditional valve, it has, and precision is high, rings
Should fast, small power consumption, long lifespan, compact-sized, environmental protection and energy saving the advantages that.
Invention content
The purpose of the invention is to overcome shortcoming and defect of the existing technology, and one kind is provided and passes through piezoelectric material
Carry out the Piexoelectric actuator of the control rotary valve of drive control rotary valve rotation.
The present invention above-mentioned technical purpose technical scheme is that：A kind of piezoelectricity drive of control rotary valve
Dynamic device, including it is arranged in order setting piezoelectrics, first piston cylinder body, second piston cylinder body and control rotary valve, described first
It is equipped with the first shoe cream room for storing fluid in piston/cylinder, is equipped with the second storage for storing fluid in second piston cylinder body
Oil pocket, first shoe cream room is interior to be equipped with first piston, and first be fixedly connected with piezoelectrics is installed on the first piston
Piston rod, the lateral wall of the first piston cylinder body towards second piston cylinder body side are installed with the sliding of the first shoe cream room of connection
Channel, second shoe cream room is interior to be equipped with second piston, is installed in the second piston and wears into sliding channel and slide therewith
Moving the second piston bar of sealing, the second piston cylinder body is equipped with blade relative to the other side of first piston cylinder body, and described the
The second shoe cream room of connection and the spray bar of driving blade rotation, the blade driving control are installed on two piston/cylinders
Rotary valve processed rotates, and fuel feed pump is communicated on second shoe cream room.
By using above-mentioned technical proposal, piezoelectrics will produce linear oscillator after being powered, and be driven by First piston bar
First piston synchronizes movement, and when piezoelectrics are vibrated towards first piston cylinder body direction, the is driven by First piston bar
One piston is mobile towards second piston cylinder body direction and to being squeezed positioned at the fluid of first piston cylinder interior and generating pressure
By force；The pressure action that fluid generates is in second piston bar, to drive second piston bar to drive second piston towards blade side
To movement and to being squeezed positioned at the fluid of second piston cylinder interior, so that fluid is sprayed from atomizer and act on blade
On, to be rotated with movable vane piece, and the rotation of blade then drives control rotary valve to realize rotation.
When piezoelectrics direction is vibrated back to first piston cylinder body direction, passes through First piston bar and drive first piston direction
Piezoelectrics direction is mobile and the first shoe cream room is made to generate pressure difference with outside air, to drive second piston towards first piston cylinder
Body direction is moved, and fluid is drawn into inside the second shoe cream room under the action of pressure difference by fuel feed pump and is carried out by the second shoe cream room
The supply of fluid.By the displacement of first piston and second piston, the micron order vibration displacement of piezoelectrics is amplified to centimetre
Grade vibration displacement and so on makes the small linear oscillator that piezoelectrics generate be converted into the rotation of control rotary valve.
It is further arranged to：First shoe cream room forms one first through first piston cylinder body towards piezoelectrics direction and opens
Mouthful, second shoe cream room forms one second opening towards first piston cylinder body direction through second piston cylinder body.
By using above-mentioned technical proposal, the setting of the first opening and the second opening makes first piston and second piston point
Not when being moved towards the first opening with the second opening direction, first piston cylinder body not will produce pressure with second piston cylinder interior
Difference, to make piezoelectricity physical efficiency drive first piston to be moved towards back to direction blade with second piston with smaller power, to carry
Rise the transfer efficiency of piezoelectrics.
It is further arranged to：The blade is wrapped with isolation cover, and the spray bar wears into isolation cover and seals therewith
The spool of connection, the control rotary valve wears into isolation cover and is fixedly connected with blade, and oil outlet is offered on the isolation cover.
By using above-mentioned technical proposal, the setting of isolation cover prevents the fluid for acting on blade from spluttering occurs, and ensures to make
With the health of environment, the fluid inside isolation cover is discharged by the setting of oil outlet, ensures the normal rotation of blade.
It is further arranged to：The isolation cover includes being sheathed on the sleeve of blade and co-axial setting and being sealed in set
Two sealing plates at cylinder both ends, the free end of the spray bar wears into sleeve and is tightly connected therewith, and the spray bar is towards leaf
One end of piece tilts upwards and the orthographic projection of spout is towards the blade face of blade, and the oil outlet is set to sleeve.
By using above-mentioned technical proposal, blade can form the air-flow of convolution during rotation, therefore pass through sleeve
Setting, the patency for ensureing gyration airflow flowing, keeps the rotation of blade more smooth, promotes transfer efficiency；And pass through by
The free end of spray bar is set as the mode being obliquely installed so that the active force that spray bar applies can preferably driving blade carry out
Rotation.
It is further arranged to：Oil feeding reservoirs is connected on the fuel feed pump, being installed on the fuel feed pump prevents fluid direction
The check valve of oil feeding reservoirs direction flowing.
Pass through when the fluid inside the second shoe cream room of second piston pair squeezes by using above-mentioned technical proposal
The setting of check valve makes fluid not flowed towards fuel feed pump direction, to increase the effect that spray bar applies blade
Power, to which driving blade is preferably rotated.
It is further arranged to：The spray bar includes entrance successively, is connected to decompression section and the connection decompression of entrance
The diameter of the boost section of section, the decompression section is more than the diameter of entrance, and the diameter of the boost section is less than the diameter of entrance.
By using above-mentioned technical proposal, the fluid inside the second shoe cream room enters influent stream under the action of second piston
Duan Zhong, when the fluid in entrance enters in decompression section, fluid, which need to fill full decompression Duan Houcai, can flow to boost section, lead to
The setting for crossing decompression section reduces the shape journey of entrance, to reduce the active force that second piston applies fluid.When decompression section
In fluid when entering boost section, flow velocity increases block pressure and increases, and to promote the active force that fluid applies blade, makes leaf
Piece can be rotated faster.
In conclusion the invention has the advantages that：The present invention by first piston cylinder body, second piston cylinder body with
Cooperation between blade three enables piezoelectrics that control rotary valve to be driven to realize rotation, to break traditional driving structure, has
Precision is high, response is fast, small power consumption, long lifespan, compact-sized, environmental protection and energy saving the advantages that；And it can pole by piezoelectricity control rotary valve
The working frequency of big raising electrohydraulic system, to meet the actual active demand of engineering.
Description of the drawings
Fig. 1 is the stereogram of embodiment；
Fig. 2 is the sectional view of embodiment；
Fig. 3 is the portions A enlarged drawing in Fig. 2；
Fig. 4 is the partial exploded view of embodiment.
In figure：1, piezoelectrics；2, first piston cylinder body；3, second piston cylinder body；4, rotary valve is controlled；5, the first shoe cream room；
6, the second shoe cream room；7, first piston；8, First piston bar；9, channel is slid；10, second piston；11, second piston bar；12、
Blade；13, spray bar；131, entrance；132, section is depressurized；133, boost section；14, fuel feed pump；15, the first opening；16, second
Opening；17, isolation cover；171, sleeve；172, sealing plate；18, oil outlet；19, oil feeding reservoirs；20, check valve.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.
With reference to figure 1 and Fig. 2, a kind of Piexoelectric actuator of control rotary valve, including be fixedly installed successively piezoelectrics 1, the
One piston/cylinder 2, second piston cylinder body 3 and isolation cover 17 offer the first shoe cream room 5, second inside first piston cylinder body 2
The second shoe cream room 6 is offered inside piston/cylinder 3；First shoe cream room 5 runs through first piston cylinder body 2 towards the side of piezoelectrics 1
To form first opening 15, the second shoe cream room 6 runs through second piston cylinder body 3 towards the side of first piston cylinder body 2
To form second opening 16.Be equipped with first piston 7 in first shoe cream room 5, first piston 7 towards piezoelectrics 1 one
End face is fixedly arranged on the First piston bar 8 being fixedly connected with piezoelectrics 1, and be located at first piston 7 in the first shoe cream room 5 lives close to second
The position of plug cylinder body 3 is filled with fluid.
The lateral wall of first piston cylinder body 2 towards 3 side of second piston cylinder body is installed with the sliding of the first shoe cream room 5 of connection
Channel 9, the second shoe cream room 6 is interior equipped with second piston (10), and second piston (10) is installed with slotting towards the end face for sliding channel 9
If into the second piston bar 11 in sliding channel 9, it is coaxially disposed between second piston bar 11 and sliding channel 9 and sliding seals, the
It is located at the position inside sliding channel 9 on two piston rods 11 and is installed with sealing ring.Second piston cylinder body 3 is towards isolation cover 17
The lateral wall of side is installed with the spray bar 13 of the second shoe cream room 6 of connection, and the free end of spray bar 13 is pierced into inside isolation cover 17
And it is fixedly connected between isolation cover 17.The fuel feed pump 14 of the second shoe cream room 6 of connection, fuel feeding are installed on second piston cylinder body 3
It is connected with oil feeding reservoirs 19 on the free end of pipe 14, check valve 20 is installed on fuel feed pump 14.
With reference to figure 3, spray bar 13 include successively interconnected entrance 131, decompression section 132 and boost section 133 and
It is wholely set between the three, the diameter of entrance 131 is less than the diameter of decompression section 132, the diameter of boost section 133 is less than influent stream
The diameter of section 131.
With reference to figure 3 and Fig. 4, isolation cover 17 includes the sleeve 171 and two sealing plates 172 that shape is cylindrical shape, sleeve 171
It is inside provided with the blade 12 of co-axial setting, two sealing plates 172 are fixedly arranged on the position that 171 end face of sleeve is located at 12 both sides of blade
It sets, insulating effect is played to the blade 12 and the external world of setting.The free end of spray bar 13 is worn into sleeve 171 and company fixed thereto
It connects, and the free end of spray bar 13 is obliquely installed upward and the frontal plane of projection of spout is on the blade face of blade 12, is opened on sleeve 171
Equipped with oil outlet 18.The outside of sealing plate 172 is installed with control rotary valve 4, and the spool of control rotary valve 4 is fed through after sealing plate 172 and leaf
The center location of piece 12 is fixedly connected so that the spool of the rotation energy drive control rotary valve 4 of blade 12 is rotated.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent changes made in accordance with the claims of the present invention, is still within the scope of the present invention.
Claims (6)
1. a kind of Piexoelectric actuator of control rotary valve, it is characterised in that：Including being arranged in order setting piezoelectrics, first piston cylinder
Body, second piston cylinder body and control rotary valve are equipped with the first shoe cream room for storing fluid, the in the first piston cylinder body
It is equipped with the second shoe cream room for storing fluid in two piston/cylinders, is equipped with first piston in first shoe cream room, described the
It is installed with the First piston bar being fixedly connected with piezoelectrics on one piston, the first piston cylinder body is towards second piston cylinder body one
The lateral wall of side is installed with the sliding channel of the first shoe cream room of connection, is equipped with second piston in second shoe cream room, and described the
Be installed on two pistons and wear into sliding channel and slide the second piston bar of sealing therewith, the second piston cylinder body relative to
The other side of first piston cylinder body is equipped with blade, and the second shoe cream room of connection and driving blade are installed on the second piston cylinder body
The spray bar of rotation, the blade driving control rotary valve rotate, and fuel feed pump is communicated on second shoe cream room.
2. a kind of Piexoelectric actuator of control rotary valve according to claim 1, it is characterised in that：First shoe cream room
One first opening is formed through first piston cylinder body towards piezoelectrics direction, second shoe cream room is towards first piston cylinder body side
One second opening is formed to through second piston cylinder body.
3. a kind of Piexoelectric actuator of control rotary valve according to claim 1, it is characterised in that：The blade outer wrapping
There are isolation cover, the spray bar to wear into isolation cover and be tightly connected therewith, the spool of the control rotary valve is worn into isolation cover
And be fixedly connected with blade, offer oil outlet on the isolation cover.
4. a kind of Piexoelectric actuator of control rotary valve according to claim 3, it is characterised in that：The isolation cover includes
It is sheathed on the sleeve of blade and co-axial setting and is sealed in two sealing plates at sleeve both ends, the free end of the spray bar
It wears into sleeve and is tightly connected therewith, the spray bar is tilted upwards towards one end of blade and the orthographic projection of spout is towards leaf
The blade face of piece, the oil outlet are set to sleeve.
5. a kind of Piexoelectric actuator of control rotary valve according to claim 1, it is characterised in that：Connect on the fuel feed pump
It is connected to oil feeding reservoirs, the check valve for preventing fluid from being flowed towards oil feeding reservoirs direction is installed on the fuel feed pump.
6. a kind of Piexoelectric actuator of control rotary valve according to claim 1, it is characterised in that：The spray bar is successively
Including entrance, it is connected to the decompression section of entrance and the boost section of connection decompression section, the diameter of the decompression section is more than influent stream
The diameter of section, the diameter of the boost section are less than the diameter of entrance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810549089.5A CN108591584B (en) | 2018-05-31 | 2018-05-31 | Piezoelectric driving device for controlling rotary valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810549089.5A CN108591584B (en) | 2018-05-31 | 2018-05-31 | Piezoelectric driving device for controlling rotary valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108591584A true CN108591584A (en) | 2018-09-28 |
| CN108591584B CN108591584B (en) | 2024-04-12 |
Family
ID=63629862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810549089.5A Active CN108591584B (en) | 2018-05-31 | 2018-05-31 | Piezoelectric driving device for controlling rotary valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108591584B (en) |
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| JPH10288115A (en) * | 1997-04-18 | 1998-10-27 | Nissan Motor Co Ltd | Fuel injection valve for engine |
| JP2005207323A (en) * | 2004-01-22 | 2005-08-04 | Denso Corp | Fuel injection device |
| US20060051232A1 (en) * | 2002-09-04 | 2006-03-09 | Ooi Kim T | Piezo-electric compressor with displacement amplifier |
| CN101608611A (en) * | 2008-06-16 | 2009-12-23 | 通用汽车环球科技运作公司 | High flow piezoelectric pump |
| CN102308132A (en) * | 2009-02-06 | 2012-01-04 | 发现技术国际股份有限公司 | Valves based on reversible piezoelectric rotary motor |
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| DE102013201714A1 (en) * | 2012-09-28 | 2014-04-03 | Siemens Aktiengesellschaft | Gas turbine engine has actuator device having pistons that are respectively coupled to piezoelectric actuator and throttle valve main portion |
| CN103775711A (en) * | 2014-02-13 | 2014-05-07 | 中国北方车辆研究所 | Control method for large flow direct-activated piezoelectric reducing valve |
| CN104373623A (en) * | 2014-10-17 | 2015-02-25 | 杭州海勒科技有限公司 | Hydraulic plug valve for oil field |
| CN204436714U (en) * | 2014-12-18 | 2015-07-01 | 浙江师范大学 | A kind of piezoelectric inertia drives oil hydraulic pump |
| CN105370958A (en) * | 2015-12-23 | 2016-03-02 | 山东大学 | Membrane servo valve driven by piezoelectric ceramics |
| CN105545860A (en) * | 2016-01-20 | 2016-05-04 | 浙江大学 | Hydraulic control reversing rotating valve |
| CN106837900A (en) * | 2017-03-20 | 2017-06-13 | 温州大学 | The electro-hydraulic vibration exciter of cement pavement rubblizing apparatus |
| CN208281613U (en) * | 2018-05-31 | 2018-12-25 | 温州大学 | A kind of Piexoelectric actuator controlling rotary valve |
-
2018
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| US4655252A (en) * | 1980-03-24 | 1987-04-07 | Krumhansl Mark U | Valves |
| JPH10288115A (en) * | 1997-04-18 | 1998-10-27 | Nissan Motor Co Ltd | Fuel injection valve for engine |
| US20060051232A1 (en) * | 2002-09-04 | 2006-03-09 | Ooi Kim T | Piezo-electric compressor with displacement amplifier |
| JP2005207323A (en) * | 2004-01-22 | 2005-08-04 | Denso Corp | Fuel injection device |
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| CN102308132A (en) * | 2009-02-06 | 2012-01-04 | 发现技术国际股份有限公司 | Valves based on reversible piezoelectric rotary motor |
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| DE102013201714A1 (en) * | 2012-09-28 | 2014-04-03 | Siemens Aktiengesellschaft | Gas turbine engine has actuator device having pistons that are respectively coupled to piezoelectric actuator and throttle valve main portion |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108591584B (en) | 2024-04-12 |
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