CN112196757A - Piezoelectric stack plunger pump with double-lever amplification - Google Patents
Piezoelectric stack plunger pump with double-lever amplification Download PDFInfo
- Publication number
- CN112196757A CN112196757A CN202011066952.5A CN202011066952A CN112196757A CN 112196757 A CN112196757 A CN 112196757A CN 202011066952 A CN202011066952 A CN 202011066952A CN 112196757 A CN112196757 A CN 112196757A
- Authority
- CN
- China
- Prior art keywords
- lever
- pump body
- plunger
- piezoelectric stack
- cylindrical screw
- 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.)
- Pending
Links
- 230000003321 amplification Effects 0.000 title claims abstract description 18
- 238000003199 nucleic acid amplification method Methods 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/003—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by piezoelectric means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
Abstract
The invention discloses a piezoelectric stack plunger pump with a double-lever structure, wherein a double-lever amplifying mechanism is arranged in the piezoelectric stack plunger pump, the double-lever structure is fixed at the bottom of the pump through interference fit, the top of a lever is connected with a piston capable of moving up and down, the piston is connected with the lever through a cylindrical screw rod, the cylindrical screw rod is connected with a hole in the lever through interference fit, and the cylindrical screw rod is rotatably connected with the hole in a piston rod; umbrella valves are arranged on the liquid inlet and the liquid outlet to control the one-way flow of the liquid. The amplification structure can achieve the effect of secondary amplification, the amplification effect is obvious, the flow of the pump is greatly improved, and the pump is simple in structure and simple to install.
Description
Technical Field
The invention relates to a piezoelectric stack plunger pump with double-lever amplification, and belongs to the field of fluid machinery.
Background
The piezoelectric stack is applied to the piezoelectric pump, and continuous output of the fluid can be realized. The piezoelectric stack pump has the advantages of simple structure, small volume, no electromagnetic interference, good flow and pressure controllability and the like, is paid attention to by people, and is widely applied to various fields in recent years along with the deep research on the piezoelectric stack pump.
Disclosure of Invention
The invention mainly aims to invent a piezoelectric stack plunger pump with double-lever amplification.
The technical scheme adopted by the invention is as follows: a double-lever amplification piezoelectric stack plunger pump is composed of an upper pump body (1), a lower pump body (2), a piezoelectric stack (3), a first lever (4), a second lever (5), a plunger (6), a cylindrical screw rod (7), an inlet valve (8), an outlet valve (9) and a pre-tightening bolt (10).
The double-lever amplification piezoelectric stack plunger pump comprises an upper pump body (1), a lower pump body (2), a piezoelectric stack (3), a first lever (4), a second lever (5), a plunger (6), a cylindrical screw (7), an inlet valve (8), an outlet valve (9) and a pre-tightening bolt (10); the top of the upper pump body is provided with a liquid inlet (1-1) and a liquid outlet (1-2), the liquid inlet is provided with an inlet valve (8), and the liquid outlet is provided with an outlet valve (9); the lower pump body (2) is connected with the upper pump body (1) in a bonding fit manner; the piezoelectric stack (3) is fixed on the lower pump body through a pretightening bolt (10); the first lever (4), the second lever (5) and a first rectangular hole (2-1) and a second rectangular hole (2-2) which are formed in the lower pump body (2) form interference fit; the plunger (6) is connected with the second lever (5) through a cylindrical screw (7), wherein round holes (5-1) (5-2) on the second lever (5) are in interference fit with the cylindrical screw (7); the round holes (6-1) (6-2) on the plunger (6) and the cylindrical screw (7) form a rotatable connection.
As a further improvement of the above solution, the piezo stack (3) is in adhesive contact with the first lever (5).
As a further improvement of the scheme, the top of the first lever (5) is in adhesive contact with the bottom of the second lever (6).
Advantageous effects
The invention adopts interference fit in most of the matching, has simple assembly, adopts the separation of the driving part and the liquid cavity, reduces the resistance of the double-lever mechanism during movement and enhances the amplification effect. The invention adopts the form of a plunger pump, can achieve higher matching precision and has good sealing performance.
Drawings
Fig. 1 is an overall structural view of a piezoelectric stack plunger pump with two lever amplification.
Fig. 2 is a schematic structural view of the upper pump body.
Fig. 3 is a schematic structural view of the lower pump body.
Fig. 4 is a schematic structural diagram of the double lever mechanism.
Fig. 5 is a schematic view of the plunger and lever mechanism assembly.
Fig. 6 is a first lever structure diagram.
Fig. 7 is a second lever structure view.
Fig. 8 is a view showing the structure of the plunger.
Detailed Description
The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.
Please refer to fig. 1, 2, 3, 4, and 5, which show the following specific structures: a double-lever amplification piezoelectric stack plunger pump is composed of an upper pump body (1), a lower pump body (2), a piezoelectric stack (3), a first lever (4), a second lever (5), a plunger (6), a cylindrical screw (7), an inlet valve (8), an outlet valve (9) and a pre-tightening bolt (10); the double-lever amplification piezoelectric stack plunger pump comprises an upper pump body (1), a lower pump body (2), a piezoelectric stack (3), a first lever (4), a second lever (5), a plunger (6), a cylindrical screw (7), an inlet valve (8), an outlet valve (9) and a pre-tightening bolt (10); the top of the upper pump body is provided with a liquid inlet (1-1) and a liquid outlet (1-2), the liquid inlet is provided with an inlet valve (8), and the liquid outlet is provided with an outlet valve (9); the lower pump body (2) is connected with the upper pump body (1) in a bonding fit manner; the piezoelectric stack (3) is fixed on the lower pump body through a pretightening bolt (10); the first lever (4), the second lever (5) and a first rectangular hole (2-1) and a second rectangular hole (2-2) which are formed in the lower pump body (2) form interference fit; the plunger (6) is connected with the second lever (5) through a cylindrical screw rod (7), wherein a round hole (5-1) on the second lever (5) is in interference fit with the cylindrical screw rod (7). The round hole (6-1) on the plunger (6) and the cylindrical screw (7) form a rotatable connection.
As a further improvement of the above solution, the piezo stack (3) is in adhesive contact with the first lever (5).
As a further improvement of the scheme, the top of the first lever (5) is in adhesive contact with the bottom of the second lever (6).
The working process of the invention can be divided into a first working process and a second working process:
the first working process comprises the following steps: an alternating current signal is applied to the piezoelectric stack (3), the piezoelectric stack is extended, and the first lever (4) is driven to move upwards to achieve the effect of primary amplification. At the same time, the first lever (4) transmits the movement and force to the second lever (5) to achieve the effect of two-stage amplification. The second lever (5) is connected to the plunger by a cylindrical screw (7) which forces the piston (6) upwards, at which time the outlet valve (9) opens and the inlet valve (8) closes. And discharging the liquid.
The second working process: the piezoelectric stack (3) contracts to drive the first lever (4) to move downwards. Meanwhile, the first lever (4) drives the second lever (5) to move downwards, the second lever (5) drives the plunger (6) to move downwards, the volume of the pump cavity is increased, the inlet valve (8) opens the outlet valve (9) and closes, and liquid is sucked.
The principles and embodiments of the present invention have been described herein using specific examples, which are intended to facilitate an understanding of the principles and core concepts of the invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. A double-lever amplification piezoelectric stack plunger pump is composed of an upper pump body (1), a lower pump body (2), a piezoelectric stack (3), a first lever (4), a second lever (5), a plunger (6), a cylindrical screw (7), an inlet valve (8), an outlet valve (9) and a pre-tightening bolt (10); the top of the upper pump body is provided with a liquid inlet (1-1) and a liquid outlet (1-2), the liquid inlet is provided with an inlet valve (8), and the liquid outlet is provided with an outlet valve (9); the lower pump body (2) is connected with the upper pump body (1) in a bonding fit manner; the piezoelectric stack (3) is fixed on the lower pump body through a pretightening bolt (10); the first lever (4), the second lever (5) and a first rectangular hole (2-1) and a second rectangular hole (2-2) which are formed in the lower pump body (2) form interference fit; the plunger (6) is connected with the second lever (5) through a cylindrical screw (7), wherein round holes (5-1) (5-2) on the second lever (5) are in interference fit with the cylindrical screw (7); the round holes (6-1) (6-2) on the plunger (6) and the cylindrical screw (7) form a rotatable connection.
2. The dual-lever amplifying piezo-stack plunger pump of claim 1, wherein: go up the pump body (1) and connect through interference fit with lower pump body (2), first lever (4) and second lever (5) and first slot (2-1) and second slot (2-2) on the lower pump body (2) form interference fit, round hole (5-1) (5-2) and cylindrical screw (7) on second lever (5) form interference fit, connect like this and have reduced the part that is used for connecting, make the assembly simpler.
3. The dual-lever amplifying piezo-stack plunger pump of claim 1, wherein: a plunger (6) is connected to the second lever (5) to form a plunger pump, so that high matching precision can be obtained, and the sealing performance is good.
4. The dual-lever piezoelectric stack plunger pump of claim 1, wherein: the first lever (5), the second lever (6) and the piezoelectric stack (3) of the amplification mechanism are separated from the liquid pump cavity, so that the resistance of the double-lever mechanism in amplification can be greatly reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011066952.5A CN112196757A (en) | 2020-10-04 | 2020-10-04 | Piezoelectric stack plunger pump with double-lever amplification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011066952.5A CN112196757A (en) | 2020-10-04 | 2020-10-04 | Piezoelectric stack plunger pump with double-lever amplification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112196757A true CN112196757A (en) | 2021-01-08 |
Family
ID=74013052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011066952.5A Pending CN112196757A (en) | 2020-10-04 | 2020-10-04 | Piezoelectric stack plunger pump with double-lever amplification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112196757A (en) |
Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4518887A (en) * | 1983-02-25 | 1985-05-21 | Nec Corporation | Differential lever actuator including differentially force-transmitting members which are not liable to break |
| US4983876A (en) * | 1988-08-11 | 1991-01-08 | Nippon Keiki Works, Ltd. | Piezoelectric pump assembly |
| JPH05130785A (en) * | 1991-11-05 | 1993-05-25 | Nippon Soken Inc | Displacement amplifying device for piezoelectric actuator |
| US20040018100A1 (en) * | 2002-06-03 | 2004-01-29 | Seiko Epson Corporation | Pump |
| DE10350759A1 (en) * | 2003-10-30 | 2005-06-16 | Zf Friedrichshafen Ag | Actuator assembly in a transmission for two fluid-actuated switching elements |
| CN101145742A (en) * | 2007-10-19 | 2008-03-19 | 北京工业大学 | A dual-phase set ultra-magnetism flexible driver and its implementation method |
| MY136102A (en) * | 2002-09-04 | 2008-08-29 | Panasonic Refrigeration Devices Singapore Pte Ltd | Piezo-electric compressor with displacement amplifier |
| CN101526661A (en) * | 2008-03-05 | 2009-09-09 | 鸿富锦精密工业（深圳）有限公司 | Camera lens mould train |
| US20090311116A1 (en) * | 2008-06-16 | 2009-12-17 | Gm Global Technology Operations, Inc. | High flow piezoelectric pump |
| CN102312802A (en) * | 2010-07-08 | 2012-01-11 | 邱金和 | Motive power generation device |
| CN102739105A (en) * | 2012-06-04 | 2012-10-17 | 南通大学 | Super magnetostrictive micro-displacement actuator with displacement amplifying and keeping functions |
| WO2014006628A1 (en) * | 2012-07-06 | 2014-01-09 | Technion Research & Development Foundation Ltd. | Linear piezoelectric compressor |
| CN106685262A (en) * | 2017-01-12 | 2017-05-17 | 广东工业大学 | Full-flexible micro-displacement amplification mechanism |
| CN107968597A (en) * | 2017-12-10 | 2018-04-27 | 绍兴康健精密不锈钢有限公司 | A kind of actuator stator based on multistage amplification principle |
| CN108680301A (en) * | 2018-05-11 | 2018-10-19 | 武汉科技大学 | A kind of dynamic calibration pressure-generating device of force snesor |
| CN108696179A (en) * | 2018-05-21 | 2018-10-23 | 吉林大学 | Additional mechanical supercharging type piezoelectricity stick-slip linear motor and its motivational techniques |
| CN109005268A (en) * | 2018-09-29 | 2018-12-14 | 华侨大学 | Lever haptic feedback devices |
| CN109139431A (en) * | 2018-09-26 | 2019-01-04 | 江西制造职业技术学院 | A kind of piezoelectric stack Micropump based on triangle and lever principle |
| CN109713937A (en) * | 2018-11-22 | 2019-05-03 | 南京航空航天大学 | A kind of micro displacement amplifier based on uniaxial oval flexible hinge |
| CN110504861A (en) * | 2019-08-05 | 2019-11-26 | 包头稀土研究院 | Second level micro displacement magnifying mechanism and its amplification method |
| CN110739256A (en) * | 2019-10-28 | 2020-01-31 | 华侨大学 | micro-displacement amplifying devices |
| TW202007890A (en) * | 2018-07-31 | 2020-02-16 | 日商富士金股份有限公司 | Actuator, valve, and fluid control device |
-
2020
- 2020-10-04 CN CN202011066952.5A patent/CN112196757A/en active Pending
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4518887A (en) * | 1983-02-25 | 1985-05-21 | Nec Corporation | Differential lever actuator including differentially force-transmitting members which are not liable to break |
| US4983876A (en) * | 1988-08-11 | 1991-01-08 | Nippon Keiki Works, Ltd. | Piezoelectric pump assembly |
| JPH05130785A (en) * | 1991-11-05 | 1993-05-25 | Nippon Soken Inc | Displacement amplifying device for piezoelectric actuator |
| US20040018100A1 (en) * | 2002-06-03 | 2004-01-29 | Seiko Epson Corporation | Pump |
| MY136102A (en) * | 2002-09-04 | 2008-08-29 | Panasonic Refrigeration Devices Singapore Pte Ltd | Piezo-electric compressor with displacement amplifier |
| DE10350759A1 (en) * | 2003-10-30 | 2005-06-16 | Zf Friedrichshafen Ag | Actuator assembly in a transmission for two fluid-actuated switching elements |
| CN101145742A (en) * | 2007-10-19 | 2008-03-19 | 北京工业大学 | A dual-phase set ultra-magnetism flexible driver and its implementation method |
| CN101526661A (en) * | 2008-03-05 | 2009-09-09 | 鸿富锦精密工业（深圳）有限公司 | Camera lens mould train |
| US20090311116A1 (en) * | 2008-06-16 | 2009-12-17 | Gm Global Technology Operations, Inc. | High flow piezoelectric pump |
| CN102312802A (en) * | 2010-07-08 | 2012-01-11 | 邱金和 | Motive power generation device |
| CN102739105A (en) * | 2012-06-04 | 2012-10-17 | 南通大学 | Super magnetostrictive micro-displacement actuator with displacement amplifying and keeping functions |
| WO2014006628A1 (en) * | 2012-07-06 | 2014-01-09 | Technion Research & Development Foundation Ltd. | Linear piezoelectric compressor |
| CN106685262A (en) * | 2017-01-12 | 2017-05-17 | 广东工业大学 | Full-flexible micro-displacement amplification mechanism |
| CN107968597A (en) * | 2017-12-10 | 2018-04-27 | 绍兴康健精密不锈钢有限公司 | A kind of actuator stator based on multistage amplification principle |
| CN108680301A (en) * | 2018-05-11 | 2018-10-19 | 武汉科技大学 | A kind of dynamic calibration pressure-generating device of force snesor |
| CN108696179A (en) * | 2018-05-21 | 2018-10-23 | 吉林大学 | Additional mechanical supercharging type piezoelectricity stick-slip linear motor and its motivational techniques |
| TW202007890A (en) * | 2018-07-31 | 2020-02-16 | 日商富士金股份有限公司 | Actuator, valve, and fluid control device |
| CN109139431A (en) * | 2018-09-26 | 2019-01-04 | 江西制造职业技术学院 | A kind of piezoelectric stack Micropump based on triangle and lever principle |
| CN109005268A (en) * | 2018-09-29 | 2018-12-14 | 华侨大学 | Lever haptic feedback devices |
| CN109713937A (en) * | 2018-11-22 | 2019-05-03 | 南京航空航天大学 | A kind of micro displacement amplifier based on uniaxial oval flexible hinge |
| CN110504861A (en) * | 2019-08-05 | 2019-11-26 | 包头稀土研究院 | Second level micro displacement magnifying mechanism and its amplification method |
| CN110739256A (en) * | 2019-10-28 | 2020-01-31 | 华侨大学 | micro-displacement amplifying devices |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1908431A (en) | Over-magnetostriction rod drive membrane pump | |
| CN1936326A (en) | Valve-free micro-pressure electric pump | |
| CN205243798U (en) | Hydraulic pressure enlargies formula piezoelectric stack pump | |
| CN112196757A (en) | Piezoelectric stack plunger pump with double-lever amplification | |
| CN102032156B (en) | Hydraulic oil suction pump with bidirectional plunger | |
| CN206071840U (en) | A kind of hydraulic pressure amplifying type ultra-magnetic telescopic transfer tube | |
| CN102966521B (en) | Piezo-stack pump capable of driving double-piston in tandem connection | |
| CN108612682B (en) | A kind of low noise hydraulic intensifier | |
| CN2849229Y (en) | Eccentrically arranged valve type oil pumping pump | |
| CN111980889B (en) | Semi-flexible integrated piezoelectric pump with active valve | |
| CN2528957Y (en) | Magnetic multifunctional hydraulic pump | |
| CN112196756B (en) | Piezoelectric stack double-plunger pump capable of amplifying swing | |
| CN203067242U (en) | Double-piston tandem-driving piezoelectric stack pump | |
| CN112196772A (en) | Piezoelectric stack pump with double-rhombus mechanism for amplification | |
| CN218991803U (en) | Electromagnetic hydraulic pump | |
| CN107191160B (en) | Double-plunger submersible diaphragm pump system and relay lifting method thereof | |
| CN112196771B (en) | Slope type integrated valve piezoelectric pump | |
| CN112196758B (en) | Passive valve piezoelectric pump with clamp-shaped amplifying mechanism | |
| CN207229348U (en) | A kind of disphragm pump for water purifier | |
| CN201908815U (en) | Two-way plunger hydraulic oil well pump | |
| CN206801805U (en) | Electromagnetic force infusion pump | |
| CN2591272Y (en) | Condensed oil pump with weighing rod under pump | |
| CN110762271A (en) | Piezoelectric stack driving type normally closed microfluidic valve | |
| CN217761226U (en) | Electromagnetic pump with high energy utilization rate | |
| CN112196755B (en) | Three-piezoelectric-stack inertia pump with rhombic amplification structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |