CN113202718A - Flexible cavity resonance piezoelectric pump for industrial lubrication - Google Patents
Flexible cavity resonance piezoelectric pump for industrial lubrication Download PDFInfo
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- CN113202718A CN113202718A CN202110487972.8A CN202110487972A CN113202718A CN 113202718 A CN113202718 A CN 113202718A CN 202110487972 A CN202110487972 A CN 202110487972A CN 113202718 A CN113202718 A CN 113202718A
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- cavity
- connecting joint
- pump
- piezoelectric
- piezoelectric vibrator
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- 238000005461 lubrication Methods 0.000 title claims abstract description 13
- 239000010687 lubricating oil Substances 0.000 claims abstract description 13
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 10
- 239000010935 stainless steel Substances 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 230000006872 improvement Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- 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
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- 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
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
-
- 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
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- 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
- F04B53/22—Arrangements for enabling ready assembly or disassembly
-
- 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
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
-
- 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
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/22—Lubricating-pumps with distributing equipment
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a flexible cavity resonance piezoelectric pump for industrial lubrication, which comprises a cavity, a drive, a piezoelectric vibrator, a pressing sheet, a connecting joint, an outlet, an inlet, a conical one-way valve and the like. The cavity is in a flexible tubular shape, the connecting joint is made of stainless steel, and a valve opening end of the connecting joint, a cavity end of the connecting joint and a hexagon socket head screw hole of the connecting joint are formed in the connecting joint. In the invention, the pump cavity, the flow pipe, the resonance device and other parts optimize the transportation of high-viscosity media, and are suitable for the transportation of lubricating oil for industrial use and the lubrication of large-scale machinery. The two groups of piezoelectric vibrators work independently to adjust the working mode of the pump. The size of the whole device can be adjusted by the size of the piezoelectric vibrator, the relative assembly positions of the piezoelectric vibrator, the pressing sheet and the connecting joint, and meanwhile, the size of the cavity can also be flexibly adjusted, so that the whole device is convenient to mount and arrange. Meanwhile, the connecting joint is used as a part of a vibration system to amplify the amplitude of the piezoelectric vibrator and increase the volume variation of the cavity.
Description
Technical Field
The invention relates to a flexible cavity resonance piezoelectric pump for industrial lubrication, belonging to the field of fluid machinery.
Background
The existing lubricating pump has large volume and the conveying precision of lubricating oil needs to be further improved, and simultaneously, the problems of lubricating oil waste, environmental pollution and the like are brought. The piezoelectric pump has the advantages of small volume, no electromagnetic interference and the like, and is attracted by people in recent years, and meanwhile, the piezoelectric pump is mostly applied to micro-flow conveying of a micro-volume pump and is not applied to the field of high-viscosity medium precision conveying of industrial lubrication and the like.
Disclosure of Invention
The invention provides a piezoelectric pump which can be flexibly arranged and has high output flow aiming at the problems of the conventional piezoelectric pump.
The technical scheme adopted by the invention is as follows: a flexible cavity resonance piezoelectric pump for industrial lubrication is composed of a cavity (1), a driving frame (2), a piezoelectric vibrator (3), a pressing sheet (4), a connecting joint (5), an outlet (6), an inner hexagonal cylindrical head screw (7), an inlet (8) and a conical one-way valve (9);
the cavity (1) is in a flexible pipe shape, the driving frame (2) is provided with a driving frame inner hexagonal cylinder head screw hole (2-1), the piezoelectric vibrator (3) is a rectangular twin-wafer piezoelectric vibrator, the pressing sheet (4) is provided with a pressing sheet inner hexagonal cylinder head screw hole (4-1), the connecting joint (5) is made of stainless steel and is provided with a connecting joint valve opening end (5-1), a connecting joint inner hexagonal cylinder head screw hole (5-2) and a connecting joint cavity end (5-3), the connecting joint valve opening end (5-1) is provided with a groove for mounting a conical one-way valve (9), the outlet (6) and the inlet (8) are made of stainless steel, the cavity (1) is bonded with the driving frame (2), the driving frame (2) and the pressing sheet (4) are matched by an inner hexagonal cylinder head screw (7) through the driving frame inner hexagonal cylinder head screw hole (2-1) and the pressing sheet inner hexagonal cylinder head screw hole (4-1), the driving frame (2) is fixed at the center of the piezoelectric vibrator (3), two ends of the piezoelectric vibrator (3) are matched with the pressing piece inner hexagonal cylinder head screw hole (4-1) and the connecting piece inner hexagonal cylinder head screw hole (5-2) through an inner hexagonal cylinder head screw (7) to fix the piezoelectric vibrator (3) on the connecting piece (5), the connecting piece cavity end (5-3) of the connecting piece (5) is bonded and sealed with the cavity (1), a conical one-way valve (9) is placed in a groove of the connecting piece valve end (5-1) of the connecting piece (5), and then the conical one-way valve is welded and sealed with the outlet (6) and the inlet (8), so that the purpose of assembling the whole pump is achieved;
as a further improvement of the technical scheme, the piezoelectric pump can pump lubricating oil with higher viscosity due to the mutual matching of the pump cavity, the flow pipe, the resonance device and the one-way valve, replaces the problem that the prior common lubricating oil pump has large volume and needs to be improved in pumping precision in partial occasions, realizes high-precision lubricating oil delivery on the premise of reducing the volume of the pump, saves resources and protects the environment;
as a further improvement of the technical scheme, the piezoelectric vibrators (3) are two groups of piezoelectric vibrators which are respectively connected with independent power supplies, and the vibration phase difference of the two groups of piezoelectric vibrators can be adjusted by adjusting the output waveforms of the two groups of independent power supplies, so that the vibration modes of the two groups of piezoelectric vibrators can be realized from synchronous vibration to completely asynchronous vibration, and the working mode of the pump is adjusted until the working mode with the maximum output flow and the maximum output pressure is adjusted;
as a further improvement of the technical scheme, the cavity (1) is in a flexible tubular shape, the driving frame (2) is bonded with the cavity (1), the vibration of the piezoelectric vibrator (3) is transmitted to the driving frame (2) through the pressing sheet (4) and the hexagon socket head cap screw (7) to drive the volume of the cavity (1) to change, and fluid flows into and out of the cavity (1) through the conical one-way valve (9) by the pressure difference between the inside and the outside of the pump;
as a further improvement of the technical scheme, the distance between the two connecting joints (5) is adjusted by the size of the piezoelectric vibrator (3) and the adjustment of the assembling positions of the piezoelectric vibrator (3), the pressing sheet (4) and the connecting joints (5), the length of the cavity (1) is not limited by the distance between the two connecting joints (5), the size of the device can be adjusted according to specific use scenes and requirements, and the installation and the arrangement are convenient;
as a further improvement of the technical scheme, the dead weight of the connecting joint (5) made of stainless steel materials and the rigidity of the piezoelectric vibrator (3) overcome the inertia generated by the vibration of the piezoelectric vibrator (3) to keep the rigidity of the whole device, and meanwhile, the connecting joint (5) is used as a mass block in the whole spring-damping-mass block resonance system to amplify the amplitude of the piezoelectric vibrator (3) and increase the volume change of the cavity (1).
The invention has the beneficial effects that:
the piezoelectric pump is used for conveying high-concentration media, so that the volume of the lubricating pump is reduced, and the lubricating oil is accurately conveyed;
the invention enables the vibration of the piezoelectric vibrator to act on the flexible cavity to drive the flexible cavity to deform, so that the output flow is improved;
the length of the flexible cavity can be flexibly adjusted through the length of the piezoelectric vibrator and the relative position of the connection joint and the piezoelectric vibrator, and the length of the flexible cavity can also be flexibly adjusted, so that the whole device is convenient to mount and arrange;
the connecting joint of the invention is simultaneously used as a mass block in a vibration system, and can effectively improve the output flow.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 shows an exploded view of the present invention.
Figure 3 shows a cross-sectional view of the present invention.
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.
Referring to fig. 1 to 3, in an embodiment of the present invention, the specific structure includes:
a flexible cavity resonance piezoelectric pump is composed of a cavity (1), a driving frame (2), a piezoelectric vibrator (3), a pressing sheet (4), a connecting joint (5), an outlet (6), an inner hexagonal socket head cap screw (7), an inlet (8) and a conical one-way valve (9); the cavity (1) is in a flexible pipe shape, the driving frame (2) is provided with a driving frame inner hexagonal cylinder head screw hole (2-1), the piezoelectric vibrator (3) is a rectangular twin-wafer piezoelectric vibrator, the pressing sheet (4) is provided with a pressing sheet inner hexagonal cylinder head screw hole (4-1), the connecting joint (5) is made of stainless steel and is provided with a connecting joint valve opening end (5-1), a connecting joint inner hexagonal cylinder head screw hole (5-2) and a connecting joint cavity end (5-3), the connecting joint valve opening end (5-1) is provided with a groove for mounting a conical one-way valve (9), the outlet (6) and the inlet (8) are made of stainless steel, the cavity (1) is bonded with the driving frame (2), the driving frame (2) and the pressing sheet (4) are matched by an inner hexagonal cylinder head screw (7) through the driving frame inner hexagonal cylinder head screw hole (2-1) and the pressing sheet inner hexagonal cylinder head screw hole (4-1), the driving frame (2) is fixed at the center of the piezoelectric vibrator (3), two ends of the piezoelectric vibrator (3) are matched with the pressing piece inner hexagonal cylinder head screw hole (4-1) and the connecting piece inner hexagonal cylinder head screw hole (5-2) through an inner hexagonal cylinder head screw (7) to fix the piezoelectric vibrator (3) on the connecting piece (5), the connecting piece cavity end (5-3) of the connecting piece (5) is bonded and sealed with the cavity (1), a conical one-way valve (9) is placed in a groove of the connecting piece valve end (5-1) of the connecting piece (5), and then the conical one-way valve is welded and sealed with the outlet (6) and the inlet (8), so that the purpose of assembling the whole pump is achieved;
as a further improvement of the technical scheme, the piezoelectric pump can pump lubricating oil with higher viscosity due to the mutual matching of the pump cavity, the flow pipe, the resonance device and the one-way valve, replaces the problem that the prior common lubricating oil pump has large volume and needs to be improved in pumping precision in partial occasions, realizes high-precision lubricating oil delivery on the premise of reducing the volume of the pump, saves resources and protects the environment;
as a further improvement of the technical scheme, the piezoelectric vibrators (3) are two groups of piezoelectric vibrators which are respectively connected with independent power supplies, and the vibration phase difference of the two groups of piezoelectric vibrators can be adjusted by adjusting the output waveforms of the two groups of independent power supplies, so that the vibration modes of the two groups of piezoelectric vibrators can be realized from synchronous vibration to completely asynchronous vibration, and the working mode of the pump is adjusted until the working mode with the maximum output flow and the maximum output pressure is adjusted;
as a further improvement of the technical scheme, the cavity (1) is in a flexible tubular shape, the driving frame (2) is bonded with the cavity (1), the vibration of the piezoelectric vibrator (3) is transmitted to the driving frame (2) through the pressing sheet (4) and the hexagon socket head cap screw (7) to drive the volume of the cavity (1) to change, and fluid flows into and out of the cavity (1) through the conical one-way valve (9) by the pressure difference between the inside and the outside of the pump;
as a further improvement of the technical scheme, the distance between the two connecting joints (5) is adjusted by the size of the piezoelectric vibrator (3) and the adjustment of the assembling positions of the piezoelectric vibrator (3), the pressing sheet (4) and the connecting joints (5), the length of the cavity (1) is not limited by the distance between the two connecting joints (5), the size of the device can be adjusted according to specific use scenes and requirements, and the installation and the arrangement are convenient;
as a further improvement of the technical scheme, the dead weight of the connecting joint (5) made of stainless steel materials and the rigidity of the piezoelectric vibrator (3) overcome the inertia generated by the vibration of the piezoelectric vibrator (3) to keep the rigidity of the whole device, and meanwhile, the connecting joint (5) is used as a mass block in the whole spring-damping-mass block resonance system to amplify the amplitude of the piezoelectric vibrator (3) and increase the volume change of the cavity (1).
The working process of the invention is divided into a first working process and a second working process:
the first working process comprises the following steps: applying an alternating current signal to the piezoelectric vibrator (3), wherein the piezoelectric vibrator (3) drives the driving frame (2) to move in the radial direction of the cavity (1) and in the direction away from the cavity (1), the volume of the cavity (1) is increased, negative pressure is formed in the pump cavity, fluid at the inlet (8) is filled into the pump cavity along the direction of the conical one-way valve (9) at the inlet (8), the conical one-way valve (9) at the outlet (6) is closed, and the fluid flows into the device;
the second working process: the piezoelectric vibrator (3) drives the driving frame (2) to move in the radial direction of the cavity (1) in the cavity (1), the volume of the cavity (1) is reduced, negative pressure is formed in the pump cavity, fluid at the cavity (1) flows out of the pump cavity along the direction of the conical one-way valve (9) at the outlet (6), the conical one-way valve (9) at the inlet (8) is closed, and the fluid flows out of the device and is circulated through the two working processes, so that the continuous output of the liquid is realized.
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 (6)
1. A flexible cavity resonance piezoelectric pump for industrial lubrication is composed of a cavity (1), a driving frame (2), a piezoelectric vibrator (3), a pressing sheet (4), a connecting joint (5), an outlet (6), an inner hexagonal cylindrical head screw (7), an inlet (8) and a conical one-way valve (9); the cavity (1) is in a flexible pipe shape, the driving frame (2) is provided with a driving frame inner hexagonal cylinder head screw hole (2-1), the piezoelectric vibrator (3) is a rectangular twin-wafer piezoelectric vibrator, the pressing sheet (4) is provided with a pressing sheet inner hexagonal cylinder head screw hole (4-1), the connecting joint (5) is made of stainless steel and is provided with a connecting joint valve opening end (5-1), a connecting joint inner hexagonal cylinder head screw hole (5-2) and a connecting joint cavity end (5-3), the connecting joint valve opening end (5-1) is provided with a groove for mounting a conical one-way valve (9), the outlet (6) and the inlet (8) are made of stainless steel, the cavity (1) is bonded with the driving frame (2), the driving frame (2) and the pressing sheet (4) are matched by an inner hexagonal cylinder head screw (7) through the driving frame inner hexagonal cylinder head screw hole (2-1) and the pressing sheet inner hexagonal cylinder head screw hole (4-1), the driving frame (2) is fixed at the center of the piezoelectric vibrator (3), two ends of the piezoelectric vibrator (3) are matched with the pressing piece inner hexagonal cylinder head screw hole (4-1) and the connecting piece inner hexagonal cylinder head screw hole (5-2) through the pressing piece (4) and the connecting joint (5) by using the inner hexagonal cylinder head screw (7), the piezoelectric vibrator (3) is fixed on the connecting joint (5), the connecting joint cavity end (5-3) of the connecting joint (5) is bonded and sealed with the cavity (1), the conical one-way valve (9) is placed in a groove of the connecting joint valve end (5-1) of the connecting joint (5), and then the conical one-way valve is welded and sealed with the outlet (6) and the inlet (8), so that the purpose of assembling the whole pump is achieved.
2. A flexible cavity resonant piezoelectric pump for industrial lubrication according to claim 1, wherein: the piezoelectric pump can pump lubricating oil with higher viscosity due to the mutual matching of the pump cavity, the flow pipe, the resonance device and the one-way valve, replaces the problem that the prior common lubricating oil pump has large volume and needs to be improved in pumping precision in part occasions, realizes high-precision lubricating oil delivery on the premise of reducing the volume of the pump, saves resources and protects the environment.
3. A flexible cavity resonant piezoelectric pump for industrial lubrication according to claim 1, wherein: the piezoelectric vibrators (3) are two groups of piezoelectric vibrators which are respectively connected with the independent power supplies, and the vibration phase difference of the two groups of piezoelectric vibrators can be adjusted by adjusting the output waveforms of the two groups of independent power supplies, so that the vibration modes of the two groups of piezoelectric vibrators can be realized from synchronous vibration to completely asynchronous vibration, and the working mode of the pump is adjusted until the working mode with the maximum output flow and the maximum output pressure is adjusted.
4. A flexible cavity resonant piezoelectric pump for industrial lubrication according to claim 1, wherein: the cavity (1) is in a flexible tubular shape, the driving frame (2) is bonded with the cavity (1), the vibration of the piezoelectric vibrator (3) is transmitted to the driving frame (2) through the pressing sheet (4) and the hexagon socket head cap screw (7) to drive the cavity (1) to change in volume, and fluid flows into and out of the cavity (1) through the conical one-way valve (9) due to the pressure difference between the inside and the outside of the pump.
5. A flexible cavity resonant piezoelectric pump for industrial lubrication according to claim 1, wherein: the distance between the two connecting joints (5) is adjusted by the size of the piezoelectric vibrator (3) and by adjusting the assembling positions of the piezoelectric vibrator (3), the pressing sheet (4) and the connecting joints (5), the length of the cavity (1) is not limited by the distance between the two connecting joints (5), the size of the device can be adjusted according to specific use scenes and requirements, and the installation and the arrangement are convenient.
6. A flexible cavity resonant piezoelectric pump for industrial lubrication according to claim 1, wherein: the dead weight of the connecting joint (5) made of stainless steel materials and the rigidity of the piezoelectric vibrator (3) overcome the inertia generated by the vibration of the piezoelectric vibrator (3), the rigidity of the whole device is kept, meanwhile, the connecting joint (5) is used as a mass block in the whole spring-damping-mass block resonance system to amplify the amplitude of the piezoelectric vibrator (3), and the volume change of the cavity (1) is increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110487972.8A CN113202718A (en) | 2021-05-06 | 2021-05-06 | Flexible cavity resonance piezoelectric pump for industrial lubrication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110487972.8A CN113202718A (en) | 2021-05-06 | 2021-05-06 | Flexible cavity resonance piezoelectric pump for industrial lubrication |
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| Publication Number | Publication Date |
|---|---|
| CN113202718A true CN113202718A (en) | 2021-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110487972.8A Withdrawn CN113202718A (en) | 2021-05-06 | 2021-05-06 | Flexible cavity resonance piezoelectric pump for industrial lubrication |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123945A (en) * | 2021-04-26 | 2021-07-16 | 长春工业大学 | Tuning fork type resonant pump based on flexible support for agricultural sprinkling irrigation |
-
2021
- 2021-05-06 CN CN202110487972.8A patent/CN113202718A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123945A (en) * | 2021-04-26 | 2021-07-16 | 长春工业大学 | Tuning fork type resonant pump based on flexible support for agricultural sprinkling irrigation |
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Application publication date: 20210803 |
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