CN208397185U - Zero stiffness combined shock absorption device - Google Patents
Zero stiffness combined shock absorption device Download PDFInfo
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- CN208397185U CN208397185U CN201820639896.1U CN201820639896U CN208397185U CN 208397185 U CN208397185 U CN 208397185U CN 201820639896 U CN201820639896 U CN 201820639896U CN 208397185 U CN208397185 U CN 208397185U
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- bearing plate
- pedestal
- plate
- compression
- elasticity
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- 230000035939 shock Effects 0.000 title claims abstract description 22
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 18
- 230000006835 compression Effects 0.000 claims abstract description 64
- 238000007906 compression Methods 0.000 claims abstract description 64
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 55
- 238000013016 damping Methods 0.000 abstract description 22
- 230000000694 effects Effects 0.000 abstract description 13
- 238000009434 installation Methods 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000007795 chemical reaction product Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Vibration Prevention Devices (AREA)
Abstract
The utility model relates to dampers, a kind of zero stiffness combined shock absorption device is provided, bearing plate including bottom plate and positioned at bottom plate wherein side, it further include pacifying pedestal set on the bottom plate, there is pedestal at least partly structure to be located at the side that bearing plate deviates from bottom plate, bearing plate passes through elasticity of compression component connecting bottom board towards bottom plate side, elasticity of compression component supports bearing plate, bearing plate connects pedestal by tensile elasticity component away from the side of bottom plate, and the compression direction of elasticity of compression component is parallel with the draw direction of tensile elasticity component.In the utility model, the two sides of bearing plate are separately connected elasticity of compression component and tensile elasticity component, mobile relative to pedestal after bearing plate stress, elasticity of compression component is compressed at this time, and tensile elasticity component is stretched, and the deformation quantity of elasticity of compression component is identical as the deformation quantity of tensile elasticity component, but it is contrary, so that the deformation quantity of damper entirety is zero after bearing plate is pressurized, realize that zero stiffness, damping effect are very good.
Description
Technical field
The utility model relates to damper more particularly to a kind of zero stiffness combined shock absorption devices.
Background technique
With making rapid progress for science and technology, manufacture level is higher and higher, product it is increasingly finer, the requirement to product is also got over
Come higher.And then the development and application of precision manufactureing and detection device are excited, such as: semiconductor processing equipment, litho machine；Nanometer is surveyed
Try equipment, electron microscope；Experiments of Optics equipment；Quadratic Finite Element, three-D detection device；And improve automobile riding comfort
Deng.
While these high precision instrument equipment operations, to surrounding enviroment and require very high.It wherein shakes to this
A little precision instruments have fatal influence, and this vibration influence is very extensive, it may be said that are ubiquitous.Damper is
The most straightforward approach that the vibration on xegregating unit periphery influences, has been widely used in above industry.
Damper is divided into high-end, middle-end and low side according to damping effect (effective damping frequency is lower, and damping effect is better)
Product.
The effective damping frequency of high-end product: 0.5Hz to 20Hz；
The effective damping frequency of middle end product: 3Hz to -20Hz；
The effective damping frequency of low-end product: 10Hz or more；
Damper is divided into according to the mode that technology is realized: active shock and passive energy dissipation device.
Active shock (high-end product): is interfered by sensor measurement real-time vibration, is generated by linear motor reversed
Vibration offsets with vibration interference, and effective damping frequency generally exists: 0.5Hz to 20Hz.This valuable product, by American-European and
Japan's monopolization, generally at 50,000-20 ten thousand dollars.
Passive energy dissipation device: using the dampings such as spring, rubber pad and cylinder factor combination at damper.It is currently mainstream
Product, occupation rate of market is 90% or more, and wherein cylinder damper needs the gas sources such as compressed air, and energy-output ratio is big, uncomfortable
Energy conservation and environmental protection requirement is closed, and spring, the effectively damping frequency such as rubber pad and passive air bag are high, and it is poor that damping effect is used alone.
Utility model content
The purpose of this utility model is to provide a kind of zero stiffness combined shock absorption devices, it is intended to existing passively subtract for solving
The damping frequency for shaking device is high, the poor problem of damping effect.
The utility model is realized in this way:
The utility model embodiment provides a kind of zero stiffness combined shock absorption device, including bottom plate and is located at the bottom plate wherein
The bearing plate of side further includes installing in the pedestal on the bottom plate, and there is the pedestal at least partly structure to be located at described hold
Weight side of the backboard from the bottom plate, the bearing plate connect the bottom by elasticity of compression component towards the bottom plate side
Plate, the elasticity of compression component support the bearing plate, and the bearing plate passes through tensile elasticity group away from the side of the bottom plate
Part connects the pedestal, and the compression direction of the elasticity of compression component is parallel with the draw direction of the tensile elasticity component.
Further, the pedestal is tubular structure, the bearing plate, the elasticity of compression component and the stretching bullet
Property component be respectively positioned in the pedestal, and the pedestal has opening far from one end of the bottom plate, described in the opening face
Bearing plate deviates from the surface of the bottom plate side.
Further, further include compression plate, between the compression plate and the bearing plate by connecting column connect, it is described by
Pressing plate is located on the outside of the pedestal and the connecting column passes through the opening.
Further, the compression plate, the connecting column and bearing plate composition are I-shaped.
Further, the projection of the opening is greater than along the projection size towards compression plate described in the direction of the bearing plate
Size, the pedestal have the confined planes that can be bonded with the compression plate.
Further, the tensile elasticity component includes at least one extension spring, one end of the extension spring and institute
Bearing plate connection is stated, the other end is connect with the pedestal.
Further, the extension spring is at least two, and each extension spring is distributed around the open space.
Further, two ends of the extension spring pass through screw rod and connect respectively with the bearing plate and pedestal
It connects, described screw rod one end has connecting hole, and the other end has screw thread, and the screw rod is connected by connecting hole and the extension spring
It connects, and is connect by screw thread with the pedestal or the bearing plate.
Further, the elasticity of compression component includes at least one compressed spring, the both ends difference of the compressed spring
Abut the bearing plate and the bottom plate.
Further, the slideway for bearing plate sliding, the extension of the slideway are provided on the inner wall of the pedestal
Direction is perpendicular to the bearing plate.
The utility model has the following beneficial effects:
In the damper of the utility model, the side of bearing plate is connect by tensile elasticity component with pedestal, and the other side is logical
Overcompression elastic parts is connect with bottom plate, and mobile relative to pedestal after bearing plate stress, elasticity of compression component is compressed at this time, and
Tensile elasticity component is stretched, and the deformation quantity of elasticity of compression component is identical as the deformation quantity of tensile elasticity component, but direction
On the contrary, so that the deformation quantity of damper entirety is zero, and realization zero stiffness, effective damping frequency can be with after bearing plate is pressurized
Reach 0.5HZ, damping effect is very good, is suitable for high precision instrument.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structural schematic diagram of zero stiffness combined shock absorption device provided by the embodiment of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
All other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, the utility model embodiment provides a kind of zero stiffness combined shock absorption device, including bottom plate 1 and bearing plate
2, damper can integrally be installed by bottom plate 1 on installation foundation 3, can be ground or floor for installation foundation 3
It is the load-carrying members of damper Deng, bearing plate 2, external force may act on bearing plate 2, and bearing plate 2 is located at wherein the one of bottom plate 1
Side is specifically located at the side that bottom plate 1 deviates from installation foundation 3, with a thickness of 5-10mm, it is of course possible to carry out according to actual needs
Adjustment, damper further include pedestal 4, and pedestal 4 is installed on bottom plate 1 and there is pedestal 4 at least partly structure to be located at the back of bearing plate 2
Side from bottom plate 1, bearing plate 2 passes through 5 connecting bottom board 1 of elasticity of compression component towards the side of bottom plate 1, and bearing plate 2 deviates from
The side of bottom plate 1 connects pedestal 4 by tensile elasticity component 6, and wherein elasticity of compression component 5 supports bearing plate 2, that is, works as bearing plate
2 by external force when, bearing plate 2 can to elasticity of compression component 5 act on so that elasticity of compression component 5 compress, certainly in external force
After releasing, elasticity of compression component 5 can restore to the original state state, and similarly, when bearing plate 2 is by external force, bearing plate 2 can be to drawing
It stretches elastic parts 6 and generates pulling force effect so that tensile elasticity component 6 stretches, and after external force releasing, also restore to the original state state, pressure
The compression direction of contracting elastic parts 5 is parallel with the draw direction of tensile elasticity component 6.In the utility model, 2 conduct of bearing plate
The weight bearing area of damper, external force in bearing plate 2 on bearing plate 2, can be forced mobile relative to pedestal 4 and bottom plate 1,
Elasticity of compression component 5 is compressed, while tensile elasticity component 6 is stretched, and the decrement and tensile elasticity of elasticity of compression component 5
The amount of tension of component 6 is identical, i.e., after external force bearing plate 2, shape occurs for elasticity of compression component 5 and tensile elasticity component 6
Become, the deformation quantity of the two is identical and contrary, so that the total deformation quantity for showing damper is zero.In addition effective damping frequency W
Depending on the intrinsic frequency W0 of damper, specifically:
The relationship of the rigidity k of the intrinsic frequency W0 and mass M damper of damper:
W0=k/M (2)
Wherein rigidity k is defined as: change rate of the load p that elastic parts is born to deformation x caused by it
K=dP/dx
Therefore, the rigidity k of damper is smaller, and intrinsic frequency is lower, and effective damping frequency values with regard to smaller, get over by damping effect
It is good, and in the present invention, total deformation quantity of damper is zero, then showing its rigidity also is zero, and then guarantees damper
Intrinsic frequency and effective damping frequency are very low, can achieve 0.5Hz according to the effective damping frequency of test result, can achieve
The effect of active shock, clearly, but damper provided by the utility model, structure is simple, realization side for damping effect
Just, low manufacture cost.
Optimize above-described embodiment, pedestal 4 uses tubular structure, integral cover on bottom plate 1, and above-mentioned bearing plate 2,
Elasticity of compression component 5 and tensile elasticity component 6 are respectively positioned in the pedestal 4, and pedestal 4 has opening in one end far from bottom plate 1
41, and the 41 face bearing plate 2 of opening deviates from the surface of 1 side of bottom plate.In the present embodiment, pedestal 4 uses tubular structure, can be with
It is made of metal material, interior to have chamber, bearing plate 2, elasticity of compression component 5 and tensile elasticity component 6 are respectively positioned on this
In chamber, pedestal 4 can play a protective role to three, and external force can be from applying to bearing plate 2 at the opening 41 of pedestal 4.In addition,
Since the final stress point of damper is pedestal 4 and bottom plate 1, the pedestal 4 of this structure can guarantee the stabilization of shock absorber structure
Property, in this regard, pedestal 4 has a circle flange 42 in the end towards 1 side of bottom plate, which can be bonded with bottom plate 1, so
The flange 42 and bottom plate 1 are locked by screw afterwards, so as to there is enough contacts area, further between pedestal 4 and bottom plate 1
Guarantee structural stability.
Continue to optimize above-described embodiment, damper further includes having compression plate 7, passes through company between the compression plate 7 and bearing plate 2
The connection of column 8 is connect, certain compression plate 7, connecting column 8 and 2 three of bearing plate are an entirety, are made of integrated molding, are pressurized
Plate 7 is located at the outside of pedestal 4, and connecting column 8 passes through above-mentioned opening 41.In the present embodiment, compression plate 7 is direct stress
Position is plate-like structure, naturally it is also possible to which according to actual needs, compression plate 7 is other structure types, and connecting column 8 is
Force transferring structure, the active force that compression plate 7 is subject to are transferred to bearing plate 2 by connecting column 8.In this regard, damper is in use, outer
If structure is without protruding into pedestal 4, both more convenient installation connection.In general, compression plate 7, connecting column 8 and bearing plate 2
I-shaped structure is formed, certainly the section of composed structure is I-shaped, and the area of compression plate 7 and bearing plate 2 is greater than connecting column 8
Area so that connecting column 8 can flexibly move in opening 41, and connecting column 8 is located at the center of compression plate 7 and bearing plate 2
Position, so that balance is compared in the transmitting of power.Further, along the projection towards 2 direction of bearing plate, the projection size of compression plate 7
Greater than the projection size of the opening 41 of pedestal 4, and the outer surface of pedestal 4 has the confined planes 43 that can be bonded with compression plate 7.This
In embodiment, be open 41 size be less than compression plate 7 size, then show compression plate 7 will not by opening 41 enter pedestals 4 in,
And under normal circumstances, there is a certain distance, and when compression plate 7 is by external force between compression plate 7 and the confined planes 43 of pedestal 4
When effect, compression plate 7 is mobile to the direction of close confined planes 43, and keeps gap between the two, and be subject to when compression plate 7
When external force is excessive, compression plate 7 is moved to be bonded with confined planes 43, is limited compression plate 7 by confined planes 43 and is continued to move to, to reach
To the effect of protection elasticity of compression component 5 and tensile elasticity component 6, avoids the two deformation excessive and fail, it is difficult to restore to the original state
State.
For above-described embodiment, the structure of tensile elasticity component 6 is refined comprising at least one extension spring 61 stretches
One end of spring 61 is connect with bearing plate 2, and the other end is connect with pedestal 4.Due to pedestal 4 have opening 41, and be open 41 with hold
Weight plate 2 is corresponding, then extension spring 61 is generally at least two, and each extension spring 61 is evenly spaced on around opening 41, with
Pedestal 4 is set to compare balance to the pulling force that bearing plate 2 applies, bearing plate 2 can be moved steadily.Based on this structure, extension spring
61 are also arranged around connecting column 8, and connecting column 8 is located at the center that each extension spring 61 encloses figure.In addition extension spring 61
Two ends pass through screw rod 62 and connect respectively with the inner wall of bearing plate 2 and pedestal 4, one end of screw rod 62 has connection
Hole, the corresponding end of extension spring 61 are connect with the connecting hole of screw rod 62, and the hook of extension spring 61, which protrudes into connecting hole, to be connected
It connects, and the other end of screw rod 62 has screw thread, generally external screw thread, screw rod 62 passes through the screw thread and 2 spiral shell of pedestal 4 or bearing plate
Line connection.Corresponding two screw rods 62 of each extension spring 61, and two screw rods 62 are located along the same line, two screw rods 62 pass through
Corresponding extension spring 61 connects.It can also be preferable using other structure type, such as plasticity for tensile elasticity component 6
Rubber column or air bag etc..
Accordingly, elasticity of compression component 5 also includes at least one compressed spring 51, and the both ends of compressed spring 51 abut respectively
Bearing plate 2 and bottom plate 1.It when compressed spring 51 is one, is located along the same line with connecting column 8, if working as compressed spring 51
When being more, then it is similar with the distribution mode of extension spring 61, is spaced apart around the straight uniform where connecting column 8.Load-bearing
The surface of plate 2 towards 1 side of bottom plate is additionally provided with rubber pad, and compressed spring 51 is connected on the rubber pad, accordingly, in bottom plate
1 is also equipped with rubber pad towards a side surface of bearing plate 2, and the other end of compressed spring 51 is also connected on the rubber pad, can
It is contacted with playing the role of buffering with enhancing, rubber pad can also be also had additional certainly between bottom plate 1 and installation foundation 3, it can
To further increase damping effect, while it can also achieve the purpose that noise reduction.
Further, the slideway slided for bearing plate 2 is additionally provided on the inner wall of pedestal 4, the extending direction of slideway hangs down
It is directly in bearing plate 2, i.e., identical as the moving direction of bearing plate 2.In the present embodiment, the movement of bearing plate 2 is limited by slideway
Track, since the two sides of bearing plate 2 are respectively compressed spring 51 and extension spring 61, and spring may produce in use
Raw torsion, can make 2 mobile comparison of bearing plate steady by slideway, avoid compressed spring 51 from generating with extension spring 61 and incline
Tiltedly, to guarantee that the sum of the deformation quantity of the two is zero.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of zero stiffness combined shock absorption device, bearing plate including bottom plate and positioned at the bottom plate wherein side, feature exists
In: it further include installing in the pedestal on the bottom plate, there is the pedestal at least partly structure to be located at the bearing plate away from institute
The side of bottom plate is stated, the bearing plate connects the bottom plate, the compression by elasticity of compression component towards the bottom plate side
Elastic parts supports the bearing plate, and the bearing plate connects the seat by tensile elasticity component away from the side of the bottom plate
Body, the compression direction of the elasticity of compression component are parallel with the draw direction of the tensile elasticity component.
2. zero stiffness combined shock absorption device as described in claim 1, it is characterised in that: the pedestal is tubular structure, described to hold
Weight plate, the elasticity of compression component and the tensile elasticity component are respectively positioned in the pedestal, and the pedestal is far from described
One end of bottom plate has opening, and bearing plate described in the opening face deviates from the surface of the bottom plate side.
3. zero stiffness combined shock absorption device as claimed in claim 2, it is characterised in that: further include compression plate, the compression plate with
It is connected between the bearing plate by connecting column, the compression plate is located on the outside of the pedestal and the connecting column passes through described open
Mouthful.
4. zero stiffness combined shock absorption device as claimed in claim 3, it is characterised in that: the compression plate, the connecting column and
The bearing plate composition is I-shaped.
5. zero stiffness combined shock absorption device as claimed in claim 3, it is characterised in that: along towards described in the direction of the bearing plate
The projection size of compression plate is greater than the projection size of the opening, and the pedestal has the limit that can be bonded with the compression plate
Face.
6. zero stiffness combined shock absorption device as claimed in claim 2, it is characterised in that: the tensile elasticity component includes at least one
Root extension spring, one end of the extension spring are connect with the bearing plate, and the other end is connect with the pedestal.
7. zero stiffness combined shock absorption device as claimed in claim 6, it is characterised in that: the extension spring is at least two, and
Each extension spring is distributed around the open space.
8. zero stiffness combined shock absorption device as claimed in claim 6, it is characterised in that: two ends of the extension spring are logical
It crosses screw rod to connect with the bearing plate and pedestal respectively, described screw rod one end has connecting hole, and the other end has screw thread, described
Screw rod is connect by connecting hole with the extension spring, and is connect by screw thread with the pedestal or the bearing plate.
9. zero stiffness combined shock absorption device as described in claim 1, it is characterised in that: the elasticity of compression component includes at least one
A compressed spring, the both ends of the compressed spring abut the bearing plate and the bottom plate respectively.
10. zero stiffness combined shock absorption device as described in claim 1, it is characterised in that: be provided with confession on the inner wall of the pedestal
The slideway of the bearing plate sliding, the slideway extend perpendicularly to the bearing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820639896.1U CN208397185U (en) | 2018-04-28 | 2018-04-28 | Zero stiffness combined shock absorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820639896.1U CN208397185U (en) | 2018-04-28 | 2018-04-28 | Zero stiffness combined shock absorption device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208397185U true CN208397185U (en) | 2019-01-18 |
Family
ID=65061989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820639896.1U Expired - Fee Related CN208397185U (en) | 2018-04-28 | 2018-04-28 | Zero stiffness combined shock absorption device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208397185U (en) |
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2018
- 2018-04-28 CN CN201820639896.1U patent/CN208397185U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |