CN114165548B - Negative poisson ratio vibration reduction protection device - Google Patents
Negative poisson ratio vibration reduction protection device Download PDFInfo
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- CN114165548B CN114165548B CN202111482806.5A CN202111482806A CN114165548B CN 114165548 B CN114165548 B CN 114165548B CN 202111482806 A CN202111482806 A CN 202111482806A CN 114165548 B CN114165548 B CN 114165548B
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- plate
- lateral
- lateral plate
- side plates
- curb
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Classifications
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
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- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/02—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
- F16F3/04—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction composed only of wound springs
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a negative poisson ratio vibration reduction protection device, which comprises a plurality of upper plates which are vertically stacked, wherein two ends of the upper plates are movably connected with a first side plate, the whole structure is a negative poisson ratio structure through the structural characteristics of an hourglass shape among the upper plates, a lower plate, the first side plates and a second side plate, and a plurality of structures are connected into a polygonal honeycomb structure.
Description
Technical Field
The invention relates to the field of shock absorbers, in particular to a negative poisson ratio shock absorption protection device.
Background
The shock absorber is required because the spring cannot be stabilized immediately, that is, after the spring is compressed and then released, the spring can stretch and retract for a period of time, so the shock absorber can absorb the shock caused by the road surface with concave and convex on the wheels, and the riding is comfortable.
When the traditional vibration damping device is used for damping the bottom of a vehicle or an instrument, the vibration damping device is used for damping vibration in the horizontal or vertical direction in one direction, and the effect of absorbing energy in the vibration damping device in one direction is poor, so that the overall vibration damping effect of the vehicle and the instrument is poor, and the vibration damping protection effect cannot be achieved.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the negative poisson ratio vibration damping protection device, which is used for damping vibration in multiple directions through the structure of the negative poisson ratio, has a simple structure and effectively improves the vibration damping protection effect.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a burden poisson ratio damping protection device, includes a plurality of upper plates of range upon range of from top to bottom, a plurality of upper plate both ends swing joint has first curb plate, first curb plate bottom swing joint has the second curb plate, two second curb plate bottom junction swing joint has the lower plate, two second curb plate upper surface is connected with first spring, upper plate, lower plate structure are the same, first curb plate, second curb plate structure are the same, upper plate, first curb plate, second curb plate, lower plate are connected and are "hourglass" structure, wholly are burden poisson ratio structure, a plurality of first curb plate, second curb plate outside junction all is connected with the second spring.
As a preferable technical scheme of the invention, a plurality of fixing lugs are arranged at two ends of the upper plate and the lower plate, movable grooves matched with the fixing lugs are formed on the surfaces of the first side plate and the second side plate, and the distance between the fixing lugs and the movable grooves does not influence the upper plate to move up and down.
As a preferable technical scheme of the invention, the inside of the two first side plates is movably connected with the first side plates, the bottommost ends of the two first side plates are movably connected with the vertical plates, the bottommost ends of the two vertical plates are movably connected with the second side plates, and the joints of the vertical plates and the first side plates and the joints of the second side plates are respectively provided with the third springs.
As a preferred embodiment of the present invention, the first spring is disposed between two vertical plates.
As a preferable technical scheme of the invention, the first lateral plate, the vertical plate and the second lateral plate are connected to form a trapezoid structure and are recessed towards the direction of the first spring.
As a preferable technical scheme of the invention, the connection parts of the first lateral plate and the connection parts of the second lateral plate and the second lateral plate are respectively movably connected with movable lugs, and the movable lugs are respectively fixed on the first lateral plate and the second lateral plate.
As a preferable technical scheme of the invention, the first lateral plate structure is the same as the second lateral plate, and the length of the first lateral plate does not influence the expansion and contraction of the first lateral plate when the first lateral plate is extruded under the force.
Compared with the prior art, the invention has the following beneficial effects:
1. through "hourglass" type structural feature between upper plate, lower plate, first curb plate, the second curb plate, wholly be negative poisson's ratio structure, and a plurality of structural connection are polygon honeycomb type structure, when the upper plate produced decurrent effort, the first curb plate of both sides inwards contracts this moment, in the in-process of shrink, the force to the vertical direction through the elasticity shrink of first spring is absorbed energy, all be connected with the second spring through first curb plate, second curb plate outside junction, when the extrusion between a plurality of structures, make the elasticity of second spring tensile, thereby again carry out damping energy-absorbing, when receiving the compression through negative poisson's ratio, transversely take place the shrink instead of material, the material shrink in-process energy-absorbing, thereby improve shock attenuation protection's effect.
2. Through the third spring that the symmetry set up, when the upper plate received downward effort, the shock attenuation was more even, and simultaneously after the energy-absorbing, the spring itself had the potential energy of elasticity resilience, reduces the potential energy that the effect produced of resilience when the third spring department elasticity resilience, simultaneously through the connection of inside trapezium structural slab activity, the effectual protection spring limit prevents excessive stretching or presses and causes the unable state that resumes of spring, and simultaneously when receiving the effort extrusion, third spring elasticity shrink energy-absorbing improves damping protection effect.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a part of the structure of the present invention;
FIG. 3 is a schematic view of a partial explosion structure of the present invention;
fig. 4 is a schematic diagram of a partial structure of the present invention.
Wherein: 1. an upper plate; 2. a fixed ear; 3. a first side plate; 4. a movable groove; 5. a second side plate; 6. a lower plate; 7. a first spring; 8. a second spring; 9. a first side plate; 10. a movable ear; 11. a vertical plate; 12. a second lateral plate; 13. and a third spring.
Detailed Description
In order that the manner in which the above recited features, objects and advantages of the present invention are obtained will become readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents, etc. used in the following examples are commercially available unless otherwise specified.
Examples:
as shown in fig. 1-4, the invention provides a negative poisson ratio vibration reduction protection device, which comprises a plurality of upper plates 1 which are vertically stacked, wherein two ends of the upper plates 1 are movably connected with first side plates 3, the bottoms of the first side plates 3 are movably connected with second side plates 5, the bottoms of the two second side plates 5 are movably connected with lower plates 6, the upper surfaces of the two second side plates 5 are connected with first springs 7, the upper plates 1 and the lower plates 6 have the same structure, the first side plates 3 and the second side plates 5 have the same structure, the upper plates 1, the first side plates 3, the second side plates 5 and the lower plates 6 are connected into an 'hourglass' structure, the whole is of a negative poisson ratio structure, and the outermost connecting parts of the first side plates 3 and the second side plates 5 are connected with second springs 8.
Through "hourglass" type structural feature between upper plate 1, lower plate 6, first side plate 3, second curb plate 5, wholly be negative poisson's ratio structure, and a plurality of structural connection are polygon honeycomb type structure, when upper plate 1 produced decurrent effort, the first side plate 3 of both sides inwards contracts this moment, in the in-process of shrink, the elasticity shrink through first spring 7 carries out the energy-absorbing to the power of vertical direction, all be connected with second spring 8 through first side plate 3, second curb plate 5 junction outside, when the extrusion between a plurality of structures, make second spring 8 elasticity tensile, thereby again carry out damping energy-absorbing, transversely take place the shrink through negative poisson's ratio when compressing simultaneously, material shrink in-process energy-absorbing, thereby improve the effect of shock attenuation protection.
In other embodiments, a plurality of fixing lugs 2 are arranged at two ends of the upper plate 1 and the lower plate 6, movable grooves 4 matched with the fixing lugs 2 are formed in the surfaces of the first side plate 3 and the second side plate 5, and the distance between the fixing lugs 2 and the movable grooves 4 does not affect the up-and-down movement of the upper plate 1.
So that the upper plate 1 and the lower plate 6 are not influenced to move up and down when the upper plate 1 and the lower plate 6 are subjected to downward acting force.
In other embodiments, the first side plates 9 are movably connected inside the two first side plates 3, the vertical plates 11 are movably connected at the bottommost ends of the two first side plates 9, the second side plates 12 are movably connected at the bottommost ends of the two vertical plates 11, and third springs 13 are arranged at the joints of the vertical plates 11 and the first side plates 3 and the joints of the second side plates 5.
When upper plate 1 receives downward effort, through the third spring 13 that the symmetry set up, the shock attenuation is more even, simultaneously after the energy-absorbing, there is the potential energy of elasticity resilience in spring itself, reduce the potential energy that the rebound effect produced when the elasticity resilience of third spring 13 department, simultaneously through the connection of inside trapezium structural slab activity, the effectual protection spring limit prevents excessive stretching or presses and causes the unable state that resumes of spring, simultaneously when receiving effort extrusion, third spring 13 elasticity shrink energy-absorbing improves vibration damping protection effect.
In other embodiments, the first spring 7 is disposed between the two vertical plates 11, so that when the upper plate 1 is pressed downwards, the vertical plates 11 press the third spring 13 to absorb energy through the connection between the first spring 7 and the vertical plates 11.
In other embodiments, the first lateral plate 9, the vertical plate 11 and the second lateral plate 12 are connected to form a trapezoid structure, and are recessed toward the first spring 7, so as to avoid the expansion and contraction of the first lateral plate 3 and the second lateral plate 5 when being stressed and contracted.
In other embodiments, the connection between the first lateral plate 9 and the first lateral plate 3 and the connection between the second lateral plate 12 and the second lateral plate 5 are movably connected with movable lugs 10, and the movable lugs 10 are respectively fixed on the first lateral plate 9 and the second lateral plate 12, so that the vertical plate 11 is retracted inwards when the first lateral plate 9 and the second lateral plate 12 are subjected to extrusion force.
In other embodiments, the first lateral plate 9 has the same structure as the second lateral plate 12, and the length of the first lateral plate 9 does not affect the expansion and contraction of the first lateral plate 3 when the first lateral plate 3 is pressed by force, so that the vibration reduction protection effect is improved, and the expansion and contraction of the second lateral plate 5 of the first lateral plate 3 is not affected.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a negative poisson's ratio damping protection device, includes a plurality of upper strata (1) of range upon range of from top to bottom, its characterized in that: a plurality of upper plate (1) both ends swing joint has first curb plate (3), first curb plate (3) bottom swing joint has second curb plate (5), two second curb plate (5) bottom junction swing joint has lower plate (6), upper plate (1), lower plate (6) structure are the same, first curb plate (3), second curb plate (5) structure are the same, upper plate (1), first curb plate (3), second curb plate (5), lower plate (6) are connected and are "hourglass" structure, wholly are burden poisson ratio structure, a plurality of first curb plate (3), second curb plate (5) are all connected with second spring (8) at the junction outside; the two first side plates (3) are internally and movably connected with first side plates (9), the bottommost ends of the two first side plates (9) are movably connected with vertical plates (11), the bottommost ends of the two vertical plates (11) are movably connected with second side plates (12), and the second side plates (12) are movably connected with the second side plates (5); third springs (13) are arranged at the joint of the vertical plate (11) and the first side plate (3) and between the joint of the vertical plate and the second side plate (5), and a first spring (7) is arranged between the two vertical plates (11); the first lateral plate (9), the vertical plate (11) and the second lateral plate (12) are connected to form a trapezoid structure and are recessed towards the direction of the first spring (7).
2. The negative poisson's ratio vibration damping protection device according to claim 1, wherein: the upper plate (1) and the lower plate (6) are provided with a plurality of fixed lugs (2), movable grooves (4) matched with the fixed lugs (2) are formed in the surfaces of the first side plate (3) and the second side plate (5), and the distance between the fixed lugs (2) and the movable grooves (4) does not affect the up-and-down movement of the upper plate (1).
3. The negative poisson's ratio vibration damping protection device according to claim 1, wherein: the movable lugs (10) are movably connected to the connection part of the first lateral plate (9) and the first lateral plate (3) and the connection part of the second lateral plate (12) and the second lateral plate (5), and the movable lugs (10) are respectively fixed with the first lateral plate (9) and the second lateral plate (12).
4. The negative poisson's ratio vibration damping protection device according to claim 1, wherein: the first lateral plate (9) is identical to the second lateral plate (12) in structure, and the length of the first lateral plate (9) does not influence the expansion and contraction of the first lateral plate (3) when being extruded by stress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111482806.5A CN114165548B (en) | 2021-12-07 | 2021-12-07 | Negative poisson ratio vibration reduction protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111482806.5A CN114165548B (en) | 2021-12-07 | 2021-12-07 | Negative poisson ratio vibration reduction protection device |
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| Publication Number | Publication Date |
|---|---|
| CN114165548A CN114165548A (en) | 2022-03-11 |
| CN114165548B true CN114165548B (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111482806.5A Active CN114165548B (en) | 2021-12-07 | 2021-12-07 | Negative poisson ratio vibration reduction protection device |
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| CN (1) | CN114165548B (en) |
Citations (9)
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|---|---|---|---|---|
| CN102720785A (en) * | 2012-05-29 | 2012-10-10 | 北京航空航天大学 | Internally hollow metal rubber vibration isolator with negative Poisson's ratio characteristic |
| CN107606018A (en) * | 2017-10-19 | 2018-01-19 | 西安交通大学 | A kind of hourglass shape electromagnetism vibration isolator |
| CN109519691A (en) * | 2018-11-02 | 2019-03-26 | 常州大学 | A kind of negative poisson's ratio material based on negative cruvature truss model |
| CN111288102A (en) * | 2020-03-24 | 2020-06-16 | 长沙理工大学 | Flexible mechanism with negative Poisson ratio characteristic |
| CN111301062A (en) * | 2020-03-19 | 2020-06-19 | 燕山大学 | Non-pneumatic tire based on negative Poisson ratio structure and working method of tire |
| JP2020125836A (en) * | 2019-02-06 | 2020-08-20 | トヨタ自動車株式会社 | Thin-thickness deformation panel autonomously deformed out of plane |
| CN112664601A (en) * | 2019-09-30 | 2021-04-16 | 河北工业大学 | Circular arc curve honeycomb core structure with negative Poisson ratio characteristic |
| DE102019218060A1 (en) * | 2019-11-22 | 2021-05-27 | Ford Global Technologies, Llc | Stop buffering device with progressively increasing spring characteristics |
| CN214458955U (en) * | 2021-02-24 | 2021-10-22 | 杭州职业技术学院 | Adjustable suspension drum-type intelligent washing machine |
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| GB2393657A (en) * | 2002-08-02 | 2004-04-07 | Rudy Hengelmolen | Auxetic tubular liners |
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2021
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|---|---|---|---|---|
| CN102720785A (en) * | 2012-05-29 | 2012-10-10 | 北京航空航天大学 | Internally hollow metal rubber vibration isolator with negative Poisson's ratio characteristic |
| CN107606018A (en) * | 2017-10-19 | 2018-01-19 | 西安交通大学 | A kind of hourglass shape electromagnetism vibration isolator |
| CN109519691A (en) * | 2018-11-02 | 2019-03-26 | 常州大学 | A kind of negative poisson's ratio material based on negative cruvature truss model |
| JP2020125836A (en) * | 2019-02-06 | 2020-08-20 | トヨタ自動車株式会社 | Thin-thickness deformation panel autonomously deformed out of plane |
| CN112664601A (en) * | 2019-09-30 | 2021-04-16 | 河北工业大学 | Circular arc curve honeycomb core structure with negative Poisson ratio characteristic |
| DE102019218060A1 (en) * | 2019-11-22 | 2021-05-27 | Ford Global Technologies, Llc | Stop buffering device with progressively increasing spring characteristics |
| CN111301062A (en) * | 2020-03-19 | 2020-06-19 | 燕山大学 | Non-pneumatic tire based on negative Poisson ratio structure and working method of tire |
| CN111288102A (en) * | 2020-03-24 | 2020-06-16 | 长沙理工大学 | Flexible mechanism with negative Poisson ratio characteristic |
| CN214458955U (en) * | 2021-02-24 | 2021-10-22 | 杭州职业技术学院 | Adjustable suspension drum-type intelligent washing machine |
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| CN114165548A (en) | 2022-03-11 |
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