CN113202717A - Resonance type inertial piezoelectric pump for industrial lubrication based on piezoelectric fiber composite material drive - Google Patents
Resonance type inertial piezoelectric pump for industrial lubrication based on piezoelectric fiber composite material drive Download PDFInfo
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- CN113202717A CN113202717A CN202110487777.5A CN202110487777A CN113202717A CN 113202717 A CN113202717 A CN 113202717A CN 202110487777 A CN202110487777 A CN 202110487777A CN 113202717 A CN113202717 A CN 113202717A
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- Prior art keywords
- pump
- piezoelectric
- spring
- ball valve
- composite material
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- 238000005461 lubrication Methods 0.000 title claims abstract description 15
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 239000000835 fiber Substances 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000010687 lubricating oil Substances 0.000 claims abstract description 6
- 230000000737 periodic effect Effects 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 230000006872 improvement Effects 0.000 description 10
- 239000007788 liquid Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 230000001133 acceleration 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
- 230000008901 benefit Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- 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
- F04B53/1002—Ball valves
- F04B53/1017—Semi-spherical ball 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
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention relates to the field of microfluidics machinery, in particular to a resonance type inertia piezoelectric pump for industrial lubrication based on the drive of a piezoelectric fiber composite material, which is mainly applied to the conveying of industrial lubricating oil and comprises the following components: frame, piezoelectric vibrator, pump body etc. The two same piezoelectric vibrators are respectively fixed at two ends of the frame, and the other ends of the piezoelectric vibrators are connected with the pump body; the pump body consists of a pump cover, a hemispherical ball valve, a spring clamping seat, a water inlet pipe, a water outlet pipe and a pump cavity; the hemispherical ball valve is connected with the inside of the pump cover, the spring clamping seat is connected with the inside of the pump cover through a spring, the spring clamping seat is connected with the pump cavity through a bolt, and the water inlet pipe and the water outlet pipe are respectively connected with the pump cavity. The invention adopts the spring structure to enable the pump body to do large-scale periodic motion, and has larger driving force and amplitude, thereby improving the output flow of the piezoelectric pump.
Description
Technical Field
The invention relates to a resonance type inertial piezoelectric pump for industrial lubrication based on the drive of a piezoelectric fiber composite material, belonging to the field of microfluidics machinery.
Background
With the increase of the service life of electronic components, the main reason for restricting the mechanical service life is the friction failure of mechanical components, and the important reason for the friction failure is that the attitude control flywheel is in a poor oil and semi-lubricating state due to untimely oil supply and failure of lubricating oil. With the demand for prolonged mechanical life, conventional passive oil supply lubrication has failed to meet the requirements, and therefore, it is necessary to provide a reliable, controllable and long-term supplementary active oil supply mode. The piezoelectric material has short response time and small vibration displacement and can generate micro-droplet ejection, so that the inertia piezoelectric pump for piezoelectric lubrication can be designed by combining the characteristics of the piezoelectric material.
Disclosure of Invention
The invention aims at the existing problems, an inertia structure is applied to a piezoelectric pump, and a resonance type inertia piezoelectric pump for industrial lubrication based on piezoelectric fiber composite material driving is provided.
The technical scheme adopted by the invention is as follows: a resonance type inertial piezoelectric pump for industrial lubrication based on piezoelectric fiber composite material driving comprises a frame (1), a piezoelectric vibrator (2), a pump cavity (3), a pump cover (4), a hemispherical ball valve (5), a spring (6), a spring clamping seat (7), a water inlet pipe (3-1) and a water outlet pipe (3-2). The piezoelectric vibrator pump is characterized in that a piezoelectric vibrator clamping groove (1-1) is formed in the rack (1), a water inlet pipe (3-1), a water outlet pipe (3-2) and a clamping groove (3-3) are formed in the pump cavity (3), a spring groove (4-1) is formed in the pump cover (4), a ball valve groove (4-2) is formed in the pump cover (4), the piezoelectric vibrator (2) is composed of a metal substrate (2-1) and piezoelectric ceramics (2-2), the piezoelectric ceramics (2-2) are attached to the metal substrate (2-1), a spring clamping groove (7-1) is formed in the spring clamping seat (7), two ends of the piezoelectric vibrator (2) are respectively fixed to the piezoelectric vibrator clamping groove (1-1) of the rack (1) and the clamping groove (3-3) of the pump cavity (3), and two ends of a spring (6) are respectively connected with the bottom surface of the spring groove (4-1) of the pump cover (4) and the bottom surface of the spring clamping groove (7-1) of the spring clamping seat (7) The end surface of the hemispherical ball valve (5) is connected with a ball valve groove (4-2) of the pump cover (4), and the spring clamping seat (7) is connected with the pump cavity (3) through a bolt;
as a further improvement of the technical scheme, when the piezoelectric pump system resonates, the piezoelectric vibrator (2) conducts large-amplitude periodic vibration at two stable points by utilizing the nonlinear characteristic of the structure, and due to the driving principle, the output flow of the piezoelectric pump is in direct proportion to the output force and displacement of the piezoelectric vibrator, so that more fluid flows into the water inlet pipe in a single period, and the output performance of the piezoelectric pump is improved;
as a further improvement of the technical scheme, the pump body can make large-amplitude periodic motion by adopting a cantilever beam structure and a spring (6) resonance system, and has large driving force and amplitude, so that the delivery quantity of the lubricating oil of the piezoelectric pump can be increased;
as a further improvement of the technical scheme, the outer diameter of the pump cover (4) is slightly smaller than the inner diameter of the pump cavity (3), so that damage in the vibration process can be avoided;
as a further improvement of the technical scheme, the hemispherical ball valve (5) is made of flexible materials, so that the problem of damage when the hemispherical ball valve collides with a water inlet pipe can be avoided;
as the further improvement of the technical scheme, the spring clamping seat (7) is arranged in the pump cavity (3) to prevent the spring from being soaked for a long time and avoid rusting.
The invention has the beneficial effects that:
according to the invention, the cantilever beam and the spring system are adopted, so that the pump body generates a resonance effect, the amplitude of the pump body is increased, and the delivery capacity of lubricating oil is improved;
the invention adopts an external ball valve structure and has the advantage that the working condition of the pump can be checked at any time.
Drawings
Fig. 1 shows an exploded view of the present invention.
Fig. 2 is a front sectional view of the present invention.
Figure 3 shows a left side sectional view of the pump chamber of the present invention.
Fig. 4 is a schematic view of the piezoelectric vibrator (2).
Fig. 5 shows a front sectional view of the pump cap (4).
Fig. 6 is a block diagram of the present invention.
Detailed description of the preferred embodiments
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 6, in an embodiment of the present invention, a specific structure includes:
a resonant inertial piezoelectric pump for industrial lubrication based on piezoelectric fiber composite actuation, comprising: the device comprises a frame (1), a piezoelectric vibrator (2), a pump cavity (3), a pump cover (4), a hemispherical ball valve (5), a spring (6), a spring clamping seat (7), a water inlet pipe (3-1) and a water outlet pipe (3-2). The piezoelectric vibrator (2) is formed by sticking piezoelectric ceramics (2-2) and a metal substrate (2-1), one end of the piezoelectric vibrator is fixed on a clamping groove (1-1) of the frame (1), and the other end of the piezoelectric vibrator is fixed on a clamping groove (3-3) of the pump cavity (3), so that the structure is driven to reciprocate up and down; hemisphere ball valve (5) are made by flexible material, arrange on ball valve recess (4-2) of pump cover (4): the two ends of the spring (6) are respectively connected with the bottom surface of the spring groove (4-1) of the pump cover (4) and the bottom surface of the spring clamping groove (7-1) of the spring clamping seat (7) in a spot welding manner: the spring clamping seat (7) is connected with the pump cavity (3) through a bolt: the water inlet pipe (3-1) and the water outlet pipe (3-2) are arranged in the pump cavity (3); the water inlet pipe (3-1) is immersed in the liquid;
as a further improvement of the technical scheme, when the piezoelectric pump system resonates, the piezoelectric vibrator (2) conducts large-amplitude periodic vibration at two stable points by utilizing the nonlinear characteristic of the structure, and due to the driving principle, the output flow of the piezoelectric pump is in direct proportion to the output force and displacement of the piezoelectric vibrator, so that more fluid flows into the water inlet pipe in a single period, and the output performance of the piezoelectric pump is improved;
as a further improvement of the technical scheme, the pump body can make large-amplitude periodic motion by adopting a cantilever beam structure and a spring (6) resonance system, and has large driving force and amplitude, so that the delivery quantity of the lubricating oil of the piezoelectric pump can be increased;
as a further improvement of the technical scheme, a spring clamping seat (7) is arranged in the pump cavity (3) to prevent the spring from being soaked for a long time and avoid rusting;
as a further improvement of the technical scheme, the hemispherical ball valve (5) is made of flexible materials, so that the problem of damage when the hemispherical ball valve collides with a water inlet pipe can be avoided;
as a further improvement of the technical scheme, the outer diameter of the pump cover (4) is slightly smaller than the inner diameter of the pump cavity (3), so that unnecessary loss in the vibration process can be avoided.
The invention has three working processes of an initial state, an upward movement state and a downward movement state;
in the initial state, the lower end of the water inlet pipe (3-1) is immersed into a medium, the medium flows into the water inlet pipe (3-1) until the heights of the inner liquid surface and the outer liquid surface of the water inlet pipe (3-1) are the same, a liquid column with a certain height is filled in the water inlet pipe (3-1), and the semicircular ball valve (5) is closed;
in the upward movement process, the semicircular ball valve (5), the water inlet pipe (3-1) and the liquid column move upward together under the action of the driving force of the piezoelectric vibrator (2) and the difference of the internal pressure and the external pressure of the water inlet pipe. When the ball valve moves to the highest point, the acceleration of the water inlet pipe (3-1) is larger than that of the semi-circular ball valve (5) under the action of the spring;
in the downward movement process, the acceleration of the water inlet pipe (3-1) is larger than that of the semicircular ball valve (5) under the action of the spring, so that the water inlet pipe (3-1) is separated from the semicircular ball valve (5), the liquid column continues to move upwards under the action of inertia to generate relative movement with the water inlet pipe (3-1), and finally the liquid flows out of the upper end of the water inlet pipe (3-1), flows into the pump cavity (3) and flows out through the water outlet pipe (3-2).
The principles and embodiments of the present invention have been described in detail herein, and the foregoing examples are provided merely to facilitate an understanding of the methods and their core concepts of the present 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 present invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments, or may be learned by practice of the invention.
Claims (6)
1. A resonance type inertial piezoelectric pump driven by a piezoelectric fiber composite material and used for industrial lubrication is composed of a frame (1), a piezoelectric vibrator (2), a pump cavity (3), a pump cover (4), a hemispherical ball valve (5), a spring (6), a spring clamping seat (7), a water inlet pipe (3-1) and a water outlet pipe (3-2); the piezoelectric vibrator pump is characterized in that a piezoelectric vibrator clamping groove (1-1) is formed in the rack (1), a water inlet pipe (3-1), a water outlet pipe (3-2) and a clamping groove (3-3) are formed in the pump cavity (3), a spring groove (4-1) is formed in the pump cover (4), a ball valve groove (4-2) is formed in the pump cover (4), the piezoelectric vibrator (2) is composed of a metal substrate (2-1) and piezoelectric ceramics (2-2), the piezoelectric ceramics (2-2) are attached to the metal substrate (2-1), a spring clamping groove (7-1) is formed in the spring clamping seat (7), two ends of the piezoelectric vibrator (2) are respectively fixed to the piezoelectric vibrator clamping groove (1-1) of the rack (1) and the clamping groove (3-3) of the pump cavity (3), and two ends of a spring (6) are respectively connected with the bottom surface of the spring ball valve groove (4-2) of the pump cover (4) and the spring clamping groove (7-1) of the spring clamping seat (7) The end face of the hemispherical ball valve (5) is adhered to a groove (4-2) of the pump cover (4), the spring clamping seat (7) is connected with the pump cavity (3) through a bolt, and the water inlet pipe (3-1) and the water outlet pipe (3-2) are installed in the pump cavity (3) to achieve the purpose of assembling the whole pump.
2. The resonance type inertial piezoelectric pump driven by piezoelectric fiber composite material for industrial lubrication according to claim 1 is characterized in that when the piezoelectric pump system resonates, the piezoelectric vibrator (2) vibrates in a large period at two stable points by utilizing the nonlinear characteristic of the structure, and due to the driving principle, the output flow of the piezoelectric pump is in direct proportion to the output force and displacement of the piezoelectric vibrator, so that more fluid flows into the water inlet pipe in a single period, and the output performance of the piezoelectric pump is improved.
3. The invention relates to a resonance type inertial piezoelectric pump for industrial lubrication based on piezoelectric fiber composite material driving, which is characterized in that a cantilever beam structure and a spring (6) resonance system are adopted to enable a pump body to do large-amplitude periodic motion, and meanwhile, the resonance type inertial piezoelectric pump has large driving force and amplitude, so that the lubricating oil conveying capacity of the piezoelectric pump can be improved.
4. The resonant inertial piezoelectric pump for industrial lubrication based on piezoelectric fiber composite material drive according to claim 1, wherein: the hemispherical ball valve (5) is made of flexible materials, so that the problem of damage when the hemispherical ball valve collides with the water inlet pipe (3-1) can be avoided.
5. The resonant inertial piezoelectric pump for industrial lubrication based on piezoelectric fiber composite material drive according to claim 1, wherein: a spring clamping seat (7) is arranged in the pump cavity (3) to prevent the spring (6) from being soaked for a long time and avoid rusting.
6. The resonant inertial piezoelectric pump for industrial lubrication based on piezoelectric fiber composite material drive according to claim 1, wherein: the outer diameter of the pump cover (4) is slightly smaller than the inner diameter of the pump cavity (3), so that damage in the vibration process can be avoided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110487777.5A CN113202717A (en) | 2021-05-06 | 2021-05-06 | Resonance type inertial piezoelectric pump for industrial lubrication based on piezoelectric fiber composite material drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110487777.5A CN113202717A (en) | 2021-05-06 | 2021-05-06 | Resonance type inertial piezoelectric pump for industrial lubrication based on piezoelectric fiber composite material drive |
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| Publication Number | Publication Date |
|---|---|
| CN113202717A true CN113202717A (en) | 2021-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110487777.5A Withdrawn CN113202717A (en) | 2021-05-06 | 2021-05-06 | Resonance type inertial piezoelectric pump for industrial lubrication based on piezoelectric fiber composite material drive |
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| CN (1) | CN113202717A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117277866A (en) * | 2023-11-22 | 2023-12-22 | 吉林大学 | Four-degree-of-freedom trans-scale stepping actuator based on piezoelectric driving |
-
2021
- 2021-05-06 CN CN202110487777.5A patent/CN113202717A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117277866A (en) * | 2023-11-22 | 2023-12-22 | 吉林大学 | Four-degree-of-freedom trans-scale stepping actuator based on piezoelectric driving |
| CN117277866B (en) * | 2023-11-22 | 2024-01-23 | 吉林大学 | Four-degree-of-freedom trans-scale stepping actuator based on piezoelectric driving |
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Application publication date: 20210803 |
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