CN210839391U - Cantilever beam type nonlinear piezoelectric vibration energy collector - Google Patents
Cantilever beam type nonlinear piezoelectric vibration energy collector Download PDFInfo
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- CN210839391U CN210839391U CN201921966056.7U CN201921966056U CN210839391U CN 210839391 U CN210839391 U CN 210839391U CN 201921966056 U CN201921966056 U CN 201921966056U CN 210839391 U CN210839391 U CN 210839391U
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- cantilever beam
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- movable plate
- vibration energy
- piezoelectric vibration
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Abstract
The utility model discloses a cantilever beam type nonlinear piezoelectric vibration energy collector, which belongs to the field of vibration energy collectors, and comprises a cantilever beam, a fixed beam is fixedly connected on the cantilever beam, a pair of casings matched with the cantilever beam are clamped on the fixed beam, a first chute is drilled at one end of the casing close to the cantilever beam, a movable plate is slidably connected in the first chute, a plurality of uniformly distributed press wheels are rotatably connected in the movable plate, a rack is fixedly connected at one end of the movable plate far away from the cantilever beam, a mounting groove is drilled in the casing, an adjusting gear matched with the rack is rotatably connected in the mounting groove, the adjusting gear is meshed with the rack, a connecting rod is fixedly connected on the adjusting gear, an adjusting knob is arranged on the surface of the casing, a chaste gear is fixedly connected at the lower end of the adjusting knob, and the vibration frequency of the energy collector, it is easy to efficiently match the energy harvester with an external excitation source.
Description
Technical Field
The utility model relates to a vibration energy collector field, more specifically say, relate to a cantilever beam formula nonlinear piezoelectric vibration energy collector.
Background
The vibration energy collector is a device for converting mechanical energy generated by vibration into electric energy, wherein a vibration environment energy collection mode based on a piezoelectric effect is a key point of domestic and foreign research due to the advantages of compact structure, no electromagnetic interference, high energy density and the like. The vibration structure that piezoelectric type vibration energy collection device often adopted has forms such as cantilever beam structure, circular structure, cymbal shape structure, and traditional cantilever beam structure is the most common form among the energy harvester, and its simple structure realizes more easily.
The length of the cantilever beam in present cantilever beam piezoelectric vibration energy collector, the position of quality piece is fixed the back, the vibration frequency of cantilever beam is also fixed, nevertheless to under external vibration energy's collection limit is a certain frequency, when external excitation source deviates from its natural frequency, the energy collection rate is lower, want to make energy collector's vibration frequency and external excitation source match the accessible and change cantilever beam vibration part's length and realize, the length that changes cantilever beam vibration part can change cantilever beam's vibration frequency, but present cantilever beam piezoelectric vibration energy collector's arm roof beam is most fixed length, vibration frequency is fixed, the regulation that can not go on the cantilever beam.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
To the problem that exists among the prior art, the utility model aims to provide a cantilever beam formula nonlinear piezoelectric vibration energy collector, it can be through adjusting a pair of fly leaf of sliding connection on the casing, make the pinch roller cantilever beam on a pair of fly leaf compress tightly fixedly, change the length of cantilever beam vibration arm to this resonant frequency who changes the cantilever beam, the resonant frequency who makes the cantilever beam matches with the external excitation source, can realize conveniently adjusting energy collector's vibration frequency, easily make energy collector and external excitation source effectively match.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
A cantilever beam type nonlinear piezoelectric vibration energy collector comprises a cantilever beam, wherein a fixed beam is fixedly connected onto the cantilever beam, a pair of shells matched with the cantilever beam is clamped on the fixed beam, a first chute is formed in one end, close to the cantilever beam, of each shell, a movable plate is connected into the first chute in a sliding mode, a plurality of uniformly distributed press wheels are connected into the movable plate in a rotating mode, a rack is fixedly connected to one end, far away from the cantilever beam, of each movable plate, a mounting groove is formed in each shell in a drilling mode, an adjusting gear matched with the rack is connected into the mounting groove in a rotating mode, the adjusting gear is meshed with the rack and connected with the rack in a meshing mode, a connecting rod is fixedly connected onto the adjusting gear, an adjusting knob is arranged on the surface of each shell, a chasing gear is fixedly connected to the lower end of the adjusting knob, and a clamping block matched with the chaste tooth wheel is connected in the second sliding groove in a sliding mode, so that the vibration frequency of the energy collector can be conveniently adjusted, and the energy collector can be easily and effectively matched with an external excitation source.
Furthermore, the surface of fly leaf is excavated there is the scale, makes things convenient for the technical staff to carry out the accurate regulation to the fly leaf.
Further, the equal fixedly connected with in both ends of fixed beam and casing assorted limiting plate, it is a pair of be connected with two pairs of buckles between the casing, make things convenient for a pair of casing with the cantilever beam chucking.
Furthermore, the rubber sleeve is sleeved on the pressing wheel, anti-skid grains are chiseled on the rubber sleeve, and the pressing wheel is easy to compress the cantilever beam.
Furthermore, the front end of fly leaf is dug there is the fillet, the cladding has the silica gel protective layer on the fillet, when reducing the cantilever beam vibration and the frictional force between the fly leaf.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages of:
(1) this scheme can make the pinch roller cantilever beam on a pair of fly leaf compress tightly fixedly through adjusting a pair of fly leaf of sliding connection on the casing, changes the length of cantilever beam vibration arm to this resonant frequency who changes the cantilever beam makes the resonant frequency and the external excitation source of cantilever beam match, can realize conveniently adjusting energy collector's vibration frequency, easily makes energy collector and external excitation source effectively match.
(2) The surface of fly leaf is dug there is the scale, makes things convenient for the technical staff to carry out the accuracy adjustment to the fly leaf.
(3) The equal fixedly connected with in both ends of fixed beam and casing assorted limiting plate are connected with two pairs of buckles between a pair of casing, make things convenient for a pair of casing with the cantilever beam chucking.
(3) The rubber sleeve is sleeved on the pressing wheel, and anti-slip grains are chiseled on the rubber sleeve, so that the pressing wheel is easy to compress the cantilever beam.
(4) The rubber sleeve is sleeved on the pressing wheel, and anti-slip grains are chiseled on the rubber sleeve, so that the pressing wheel is easy to compress the cantilever beam.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is a perspective view of the present invention in use;
fig. 3 is a cross-sectional view of the present invention;
fig. 4 is a cross-sectional view of the adjusting gear of the present invention.
The reference numbers in the figures illustrate:
the device comprises a cantilever beam 1, a fixed beam 2, a shell 3, a movable plate 4, a rack 401, a graduated scale 402, a pinch roller 5, an adjusting gear 6, a connecting rod 7, an adjusting knob 8, a gear wheel 9, a fixture block 10 and a fastener 11.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-2, a cantilever beam type nonlinear piezoelectric vibration energy harvester includes a cantilever beam 1, a fixed beam 2 fixedly connected to the cantilever beam 1, a position-limiting plate 201 fixedly connected to both ends of the fixed beam 2 and matching with a housing 3, a pair of housings 3 connected to the fixed beam 2 and matching with the cantilever beam 1, two pairs of buckles 11 connected between the housings 3 for conveniently clamping the cantilever beam 1 by the housings 3, a first chute drilled at one end of the housing 3 near the cantilever beam 1, a movable plate 4 slidably connected in the first chute, a round corner drilled at the front end of the movable plate 4, a silica gel protective layer coated on the round corner for reducing friction between the cantilever beam 1 and the movable plate 4 when vibrating, a plurality of uniformly distributed press wheels 5 rotatably connected in the movable plate 4, a rubber sleeve sleeved on the press wheel 5, anti-skid veins drilled on the rubber sleeve for easily pressing the cantilever beam 1 by the press wheels 5, one end of the movable plate 4 far away from the cantilever beam 1 is fixedly connected with a rack 401, and a graduated scale 402 is chiseled on the surface of the movable plate 4, so that a technician can conveniently and accurately adjust the movable plate 4.
Referring to fig. 2-4, a mounting groove is drilled in the housing 3, an adjusting gear 6 matched with the rack 401 is rotatably connected in the mounting groove, the adjusting gear 6 is meshed with the rack 401, a connecting rod 7 is fixedly connected to the adjusting gear 6, an adjusting knob 8 is arranged on the surface of the housing 3, a chaste gear 9 is fixedly connected to the lower end of the adjusting knob 8, the chaste gear 9 is fixedly connected with the connecting rod 7, a second sliding groove is drilled in the surface of the housing 3, a clamping block 10 matched with the chaste gear 9 is slidably connected in the second sliding groove, and the swing amplitude of the adjusting mechanism 1 is convenient to adjust.
When the cantilever beam length adjusting device is used, a user can clamp a pair of shells 3 on a fixed beam 2 and clamp a cantilever beam 1 through the pair of shells 3, then the pair of shells 3 are fixed through a plurality of buckles 11, the user can rotate an adjusting knob 8 to enable a connecting rod 7 to drive an adjusting gear 6 to rotate, so that a movable plate 4 moves along the length direction of the cantilever beam 1, a pressing wheel 5 on a pair of movable plates 4 extends out of the shells 3 to clamp the cantilever beam 1, the length of a vibrating arm of the cantilever beam 1 is changed, the vibrating frequency of the cantilever beam 1 is changed, a technician can accurately adjust the length of the vibrating arm of the cantilever beam 1 by observing a graduated scale 402 when adjusting the movable plate 4, the user can push a clamping block 10 after adjustment is finished, the clamping block 10 is clamped with a chaste 9, the connecting rod 7 and the adjusting gear 6 are fixed, the movable plate 4 is fixed after a pitch gear 6, accomplish energy harvester's vibration frequency and adjust, this scheme compresses tightly cantilever beam 1 through a pair of fly leaf 4 and changes the length of the part that can vibrate of cantilever beam 1, the accessible is observed scale 402 and is carried out the accurate regulation of cantilever beam 1 vibration arm length when adjusting fly leaf 4, the vibration arm length of messenger's steerable cantilever beam 1 of technical staff, change energy harvester's vibration frequency, change its vibration frequency through the vibration arm length that changes cantilever beam 1, make energy harvester's vibration frequency adapt to outside excitation source, the technical staff can improve energy harvester's energy acquisition efficiency with the vibration frequency regulation of cantilever beam 1 to the frequency that adapts to outside excitation source.
The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (5)
1. The utility model provides a cantilever beam formula nonlinear piezoelectric vibration energy harvester, includes cantilever beam (1), its characterized in that: the cantilever beam (1) is fixedly connected with a fixed beam (2), the fixed beam (2) is connected with a pair of shells (3) matched with the cantilever beam (1) in a clamping manner, one end of each shell (3) close to the cantilever beam (1) is provided with a first chute, a movable plate (4) is connected in the first chute in a sliding manner, a plurality of uniformly distributed press wheels (5) are rotatably connected in the movable plate (4), one end of each movable plate (4) far away from the cantilever beam (1) is fixedly connected with a rack (401), a mounting groove is formed in each shell (3), an adjusting gear (6) matched with the rack (401) is rotatably connected in the mounting groove, the adjusting gear (6) is meshed with the rack (401) and is connected with a connecting rod (7), and an adjusting knob (8) is arranged on the surface of each shell (3), the lower extreme fixedly connected with thorn gear (9) of adjust knob (8), thorn gear (9) and connecting rod (7) fixed connection, the surface of casing (3) is opened and is dug there is the second spout, sliding connection has fixture block (10) with thorn gear (9) assorted in the second spout.
2. The cantilever beam nonlinear piezoelectric vibration energy harvester of claim 1 wherein: the surface of the movable plate (4) is provided with a graduated scale (402).
3. The cantilever beam nonlinear piezoelectric vibration energy harvester of claim 1 wherein: the equal fixedly connected with in both ends of fixed beam (2) and casing (3) assorted limiting plate (201), it is a pair of be connected with two couples of buckle (11) between casing (3).
4. The cantilever beam nonlinear piezoelectric vibration energy harvester of claim 1 wherein: the rubber sleeve is sleeved on the pressing wheel (5), and anti-skid grains are chiseled on the rubber sleeve.
5. The cantilever beam nonlinear piezoelectric vibration energy harvester of claim 1 wherein: the front end of fly leaf (4) is dug there is the fillet, the cladding has the silica gel protective layer on the fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921966056.7U CN210839391U (en) | 2019-11-14 | 2019-11-14 | Cantilever beam type nonlinear piezoelectric vibration energy collector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921966056.7U CN210839391U (en) | 2019-11-14 | 2019-11-14 | Cantilever beam type nonlinear piezoelectric vibration energy collector |
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| CN210839391U true CN210839391U (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921966056.7U Expired - Fee Related CN210839391U (en) | 2019-11-14 | 2019-11-14 | Cantilever beam type nonlinear piezoelectric vibration energy collector |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112583299A (en) * | 2020-12-10 | 2021-03-30 | 东北大学 | Adjustable piezoelectric energy acquisition device |
| CN112636632A (en) * | 2020-12-21 | 2021-04-09 | 上海工程技术大学 | Nonlinear two-degree-of-freedom multi-resonance piezoelectric energy collector |
| CN112928947A (en) * | 2021-01-29 | 2021-06-08 | 南京开秀商贸有限公司 | Piezoelectric material-based micro power generation equipment |
| CN113141127A (en) * | 2021-04-28 | 2021-07-20 | 河北工业大学 | Intelligent piezoelectric vibration energy collector |
-
2019
- 2019-11-14 CN CN201921966056.7U patent/CN210839391U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112583299A (en) * | 2020-12-10 | 2021-03-30 | 东北大学 | Adjustable piezoelectric energy acquisition device |
| CN112636632A (en) * | 2020-12-21 | 2021-04-09 | 上海工程技术大学 | Nonlinear two-degree-of-freedom multi-resonance piezoelectric energy collector |
| CN112636632B (en) * | 2020-12-21 | 2024-05-31 | 上海工程技术大学 | Nonlinear two-degree-of-freedom multi-resonance piezoelectric energy collector |
| CN112928947A (en) * | 2021-01-29 | 2021-06-08 | 南京开秀商贸有限公司 | Piezoelectric material-based micro power generation equipment |
| CN113141127A (en) * | 2021-04-28 | 2021-07-20 | 河北工业大学 | Intelligent piezoelectric vibration energy collector |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200623 Termination date: 20201114 |
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| CF01 | Termination of patent right due to non-payment of annual fee |