CN209277656U - The knockdown nonlinear spring vertical vibration isolation device of precompressed - Google Patents
The knockdown nonlinear spring vertical vibration isolation device of precompressed Download PDFInfo
- Publication number
- CN209277656U CN209277656U CN201821848138.7U CN201821848138U CN209277656U CN 209277656 U CN209277656 U CN 209277656U CN 201821848138 U CN201821848138 U CN 201821848138U CN 209277656 U CN209277656 U CN 209277656U
- Authority
- CN
- China
- Prior art keywords
- vibration isolation
- knockdown
- plate
- isolation device
- vertical vibration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Vibration Prevention Devices (AREA)
- Springs (AREA)
Abstract
The utility model belongs to vibration and field of noise control, a kind of knockdown nonlinear spring vertical vibration isolation device of precompressed is provided, including No. 1 helical spring, No. 2 helical springs, presstressed reinforcing steel, viscous damping material, gag lever post, limit hole, upper cover plate, middle makees plate and pedestal；Vertical concatenated No. 1 helical spring and No. 2 helical spring Stage loadings is set to form linear Stiffness spring by prestressing force, it can make the utility model by the rigidity of No. 1 helical spring of design and No. 2 helical springs while guarantee there is larger Static stiffness in static load, and have smaller dynamic stiffness in dynamic load；Gag lever post and limit hole guarantee that when bearing larger effect excessive deformation does not occur for the utility model；The damping energy dissipation that No. 1 helical spring is provided in vibration by viscous damping material.The more demanding special vibration damping location of rail traffic vibration and noise reducing and floating floor etc., which can be widely applied, in the utility model needs the structure or facility of vertical vibration isolation, and effectiveness in vibration suppression is better than existing steel spring vibration isolator.
Description
Technical field
The utility model relates to one kind to be based on prestressed pre- pressure combined nonlinear spring vertical vibration isolation device, belong to vibration
Dynamic and field of noise control.
Background technique
With the rapid development of social economy with the continuous expansion of city scope, urban traffic blocking situation got worse,
Rail traffic has become the important means for solving urban traffic blocking.Currently, existing more than the 20 a cities of China possess or proposed set
Underground railway track route, the gross investment amount of money are more than 600,000,000,000 yuans.When rail line passes through population collection area,
Long-term operation necessarily causes vibration and noise pollution, and vibration has been considered as one of the big public hazards in the world seven pollution, vibrates and make an uproar
The pollution of sound will necessarily adversely affect the residents ' health on rail line or periphery, can also build to important around
Precision instrument in building constitutes a threat to, thus completely cut off or weaken rail traffic caused by vibration and noise pollution be one it is necessary to
And significant thing.
The mass-spring system that floating type track structure is made of armored concrete road bed board and elastic support, by subtracting
Armored concrete road bed board is suspended by the spring element that shakes, and is formed a kind of track pattern with higher effectiveness in vibration suppression, is subtracted
Noise reduction effect of shaking reduces 15-25dB than ballast bed track, has become the higher location of rail traffic damping requirements most preferably
The track structure selected.But when the driving frequency of running train is equal or close to the intrinsic frequency of floating plate rail structure itself,
Vibration be unable to get effective decrease, there is also sometimes vibration amplification the phenomenon that, floating plate generated in train operation compared with
Big displacement, also can train operating safety cause a hidden trouble, therefore application have certain limitation.
Building near rail traffic as a result, can vibration produced by by rail traffic influenced, to the residence in building
People's Residential health and working efficiency have adverse effect on；Ambient vibration can also seriously affect the precision of instrument simultaneously.And at present
Floating floor uses steel spring vibration isolation, since the single spring rate fixation of frequency can not realize the target of vibration isolation well, application
Also there is certain limitation.
Summary of the invention
Purpose of the utility model is to solve floor in floating plate track, building and important equipment vertically every
Vibration problem, and vibration isolation efficiency is improved, a kind of knockdown nonlinear spring vertical vibration isolation device of precompressed is provided.
In order to achieve the above objectives, the utility model provides following technical solution:
The utility model proposes a kind of knockdown nonlinear spring vertical vibration isolation devices of precompressed, including pedestal, No. 1 spiral
Spring, No. 2 helical springs, viscous damping material, presstressed reinforcing steel, presstressed reinforcing steel anchoring piece, it is middle make plate, upper cover plate, gag lever post and
Limit hole.
The pedestal is tubular construction, offers center groove on pedestal and uniformly distributed in the several of center groove periphery
Limit hole, center groove is interior to fill viscous damping material, and viscous damping material is to provide damping energy dissipation；Covering inside limit hole
Can cushion impact forces material.
For example and without limitation, in the present invention, viscous damping material can both use damping grease, can also adopt
With viscous damping liquid；According to damping grease, then directly damping grease is filled in center groove, without sealing；According to
Viscous damping liquid, then can be close by viscous damping liquid in the middle one circle rubber material of periphery setting or soft plastics for making plate and pedestal
Envelope, and rubber material or soft plastics are in relaxed state, are neither pressurized nor tension.
No. 1 helical spring is made between plate and pedestal in being vertically connected to, and the bottom end of No. 1 helical spring is connected to pedestal
Zhong Zuo plate bottom centre is fixed on the center of center groove, top.
No. 2 helical springs be vertically connected to upper cover plate and in make between plate, during the bottom end of No. 2 helical springs is fixed on
Make plate top center, upper cover plate bottom centre is fixed on top.
Several presstressed reinforcing steels are made between plate and upper cover plate in being vertically connected to, and are laid in No. 2 helical spring peripheries, to pre-
After stress rib applies prestressing force, by corresponding presstressed reinforcing steel anchoring piece by presstressed reinforcing steel be fixed in make plate and upper cover plate it
Between；Meanwhile No. 2 helical springs can be made to be in preloading condition by applying prestressing force to presstressed reinforcing steel.The material of presstressed reinforcing steel can
Using high strength steel strand or other can provide enough tensile strength and the insignificant material of compression strength or component.
Further, make plate between No. 1 helical spring and No. 2 helical springs in described, periphery offers several small
Hole is passed through for presstressed reinforcing steel；Corresponding, the upper cover plate is located at the top of No. 2 helical springs, and periphery also offers several small
Hole is passed through for presstressed reinforcing steel.
Corresponding to limit hole position, makees board bottom portion in and be welded with several gag lever posts, gag lever post and limit hole vertical
It corresponds upwards, both corresponding longitudinal centre line is in same vertical axis；Under original state, gag lever post and limit hole
It does not contact；Gag lever post surface closely covers one layer of rubber material by bonding, buffering when contacting for gag lever post and limit hole,
The central axis of gag lever post and the central axis of limit hole are consistent.
Gag lever post and limit hole collectively constitute big displacement limiting component, the contact power transmission by gag lever post with limit hole, limit
Make the rapid growth deformed when the utility model bears larger vertical effect.
By No. 1 helical spring and No. 2 helical spring Stage loadings in the utility model, send out the utility model rigidity
Change the spring that chemical conversion is a kind of linear Stiffness, realizes the rigidity requirement of vibration isolation different phase, so that vibration isolation efficiency is improved, with
The vibration of No. 1 helical spring drives the deformation of viscous damping material to provide damping force and realizes damping energy dissipation.
The principle of the knockdown nonlinear spring vertical vibration isolation device of precompressed provided by the utility model is:
By No. 1 helical spring and No. 2 helical spring Stage loadings, nonlinear spring performance is realized, keep this practical new
Type provides biggish rigidity in static load, and is to provide lesser dynamic stiffness in vibration, to realize the vibration isolation of greater efficiency；
The utility model specific stress stage are as follows:
(1) when the stage one bears static load, No. 2 helical springs exist due to being in preloading condition, No. 2 helical springs
It will not deform when initial compression, No. 2 helical springs can pass to top vertical load to No. 1 spiral bullet as rigid body
Spring, at this time No. 1 helical spring can stress deform, the stage due to only having No. 1 helical spring to deform, the stage
The rigidity that only No. 1 helical spring provides；
(2) when the stage two is that this isolation mounting is born when vibration is transmitted effect further increases, No. 2 helical springs
Precompression, which is cancelled, also takes place deformation, and No. 1 helical spring of the stage and No. 2 helical springs deform simultaneously, therefore should
The rigidity that this isolation mounting of stage provides is the rigidity after No. 1 helical spring and No. 2 helical spring series connection, due to the spiral shell after series connection
It revolves spring rate to reduce, therefore vibration can more effectively be isolated than first stage rigidity；
(3) stage three is the gag lever post when the present apparatus is by accidental impact or bears the active force bigger than second stage
With limit hole from discrete state transition be contact condition, the contact power transmission due to gag lever post with limit hole makes No. 1 spiral at this time
Further compressive deformation will not occur for spring, and No. 2 helical springs still keep deformable working condition, therefore the stage is only
The rigidity for thering are No. 2 helical springs to provide, to make the rigidity in the stage greater than the rigidity of second stage, to prevent excessive deformation
It generates.
Meanwhile when the vibration generation of the utility model stage two, vibration of No. 1 helical spring in viscous damping material can be produced
Raw damping force, so that providing damping energy dissipation further weakens vibration.
The utility model is applicable to the vibration isolation of rail traffic track, vertical motion Sensitive Buildings or important equipment pedestal,
Vibration isolation especially suitable for track floating plate and floating floor, it can also be used to remaining with vertical motion be harm field every
Vibration.
The beneficial effects of the utility model are:
(1) stage at the present apparatus stress initial stage one deformation pressure-bearing by No. 1 helical spring, can provide biggish carrying
Rigidity, can guarantee superstructure that the present apparatus is carried or instrument it is steady with it is comfortable.
(2) present apparatus temporarily to reach the stage two in vibration, and No. 1 helical spring and No. 2 helical springs deform pressure-bearing simultaneously,
Due to the series connection of No. 1 helical spring and No. 2 helical springs, total vertical rigidity that the present apparatus can be made to provide becomes smaller, can be more effectively
Isolation vibration.
(3) present apparatus, due to the presence of large deformation limiting component, will not make the present apparatus when meeting with accidental large impact excessively
Happen suddenly excessive deformation, the safety being further ensured that during vibration isolation；
(4) damping force is provided by the way of viscous damping material, while sufficient damping force is provided, present apparatus damping
Implementation it is simple, convenient for operation.
(5) material therefor is low in cost, simple structure, easy to process, is conveniently replaceable.
(6) the more demanding location of rail traffic vibration and noise reducing, floating floor and important instrument vibration isolation can be widely applied.
Detailed description of the invention
Fig. 1 is a kind of knockdown nonlinear spring vertical vibration isolation device perspective view of precompressed of the utility model；
Fig. 2 is the utility model pedestal perspective view；
Fig. 3 is No. 1 helical spring perspective view of the utility model；
Fig. 4 is No. 2 helical spring perspective views of the utility model；
Fig. 5 is the utility model presstressed reinforcing steel perspective view；
Fig. 6 is to make plate perspective view in the utility model；
Fig. 7 is the utility model upper cover plate perspective view；
Fig. 8 is the utility model gag lever post perspective view；
Figure label: the helical spring 2,2 of pedestal 1,1 helical spring 3, presstressed reinforcing steel 5, is answered at viscous damping material 4 in advance
Power muscle anchoring piece 51, it is middle make plate 6, it is middle make board prestress muscle preformed hole 61, upper cover plate 7, upper cover board prestress muscle preformed hole 71, limit
Position bar 8, limit hole 9.
Specific embodiment
The utility model is further illustrated below by embodiment combination attached drawing.
Embodiment
As shown in Figure 1, a kind of knockdown nonlinear spring vertical vibration isolation device of precompressed, including 1, No. 1 spiral bullet of pedestal
2, No. 2 helical springs 3 of spring, presstressed reinforcing steel 5, middle make plate 6, upper cover plate 7, gag lever post 8 and limit hole 9 at viscous damping material 4.
As shown in Fig. 2, the pedestal 1 is tubular, a center groove and four circular limit holes are offered on pedestal 1
9, the interior filling viscous damping material 4 of center groove, the uniformly distributed annular upper surface in center groove periphery of four limit holes 9,
One layer of rubber is closely covered by bonding in limit hole 9.The bottom centre of pedestal 1 is simultaneously that No. 1 helical spring 2 provides support.
For example and without limitation, viscous damping material 4 can both use damping grease, can also use viscous damping liquid；
According to damping grease, then directly damping grease is filled in center groove, without sealing；According to viscous damping liquid, then
Viscous damping liquid can be sealed in the middle one circle rubber material of periphery setting or soft plastics for making plate 6 and pedestal 1, and rubber material
Material or soft plastics are in relaxed state, are neither pressurized nor tension.
As shown in figures 1 and 3, No. 1 helical spring 2 is vertically fixed in the center of pedestal 1, as elastic damping list
Member.
As shown in Figure 1 and Figure 4, No. 2 helical springs 3 be vertically fixed in make 6 center of plate and 7 center of upper cover plate it
Between, as elastic damping unit.
As shown in Figure 3 and Figure 4,2, No. 2 helical springs 3 of No. 1 helical spring are steel spring, the two size, length and just
The desirable different value of the parameters such as degree.
As shown in Figure 1 and Figure 5, upper cover plate 7 and in make to be provided with four presstressed reinforcing steels 5 between plate 6, presstressed reinforcing steel 5 it is upper
Lower both ends are provided with presstressed reinforcing steel anchoring piece 51, and presstressed reinforcing steel 5 can be steel strand wires, and presstressed reinforcing steel anchoring piece 51 is applied for prestressing force
Anchorage needed for added-time.Further, as shown in Figure 6 and Figure 7, it is middle make to open up on plate 6 make board prestress muscle preformed hole there are four in
61, it opens up on upper cover plate 7 there are four upper cover board prestress muscle preformed hole 71, four presstressed reinforcing steels 5 are each passed through middle make in plate 6
The upper cover board prestress muscle preformed hole 71 for making board prestress muscle preformed hole 61 and upper cover plate 7, after applying prestressing force to presstressed reinforcing steel 5
Pass through the fixed presstressed reinforcing steel 5 of corresponding presstressed reinforcing steel anchoring piece 51.
Make 6 lower surface of plate in as shown in fig. 6, and four gag lever posts 8, gag lever post are installed by welding or bolted mode
8 installation site and the central axis of the limit hole 9 on pedestal 1 are consistent.Further, middle to make 6 lower surface center of plate connection 1
The upper end of number helical spring 2, the middle lower end made 6 upper surface center of plate and connect No. 2 helical springs 3.
As shown in Figure 1,7 lower surface center of upper cover plate connects the upper end of No. 2 helical springs 3.
As shown in figure 8, gag lever post 8 is cylindrical steel rods, 8 one end of gag lever post is welded or is bolted under Yu Zhongzuo plate 6
Surface, remaining surface closely cover one layer of rubber by way of bonding, are in contact production for buffer limit bar 8 and limit hole 9
Raw impact force；The central axis of gag lever post 8 and the central axis of limit hole 9 are consistent, and the disc radius of gag lever post 8
It is slightly less than the disc radius of limit hole 9, to guarantee that gag lever post 8 can be readily inserted into limit hole 9.
It is the representative instance of the utility model above, the implementation of the utility model is without being limited thereto.Gag lever post 8 and limit hole 9
Variable amounts it is dynamic, the quantity of presstressed reinforcing steel also variable.
Foregoing description is only the description to the utility model preferred embodiment, is not to any of the scope of the utility model
It limits.Any change or modify equal that any those skilled in the art makes according to the technology contents of the disclosure above
It should be considered as equivalent effective embodiment, belong to the range of technical solutions of the utility model protection.
Claims (10)
1. a kind of knockdown nonlinear spring vertical vibration isolation device of precompressed, it is characterised in that: including pedestal (1), No. 1 spiral bullet
Spring (2), viscous damping material (4), presstressed reinforcing steel (5), middle makees plate (6), upper cover plate (7), gag lever post at No. 2 helical springs (3)
(8)；
Center groove and several limit holes (9) positioned at center groove periphery are offered on the pedestal (1), are filled out in center groove
Fill viscous damping material (4)；
No. 1 helical spring (2) is vertically fixed between the center groove of pedestal (1) and the middle bottom for making plate (6)；Described 2
Number helical spring (3) is vertically fixed between the middle top for making plate (6) and the bottom of upper cover plate (7)；
It is described middle to make that several vertically arranged presstressed reinforcing steels (5), several presstressed reinforcing steels are installed between plate (6) and upper cover plate (7)
(5) No. 2 helical spring (3) peripheries are laid in, and No. 2 helical springs (3) is made to be in preloading condition；
Corresponding to the position of limit holes (9) several on pedestal (1), make in plate (6) bottom be provided with it is several in the longitudinal direction
With the one-to-one gag lever post (8) of limit hole (9), gag lever post (8) and limit hole (9) form big displacement limiting component；Initial
Under state, gag lever post (8) is not contacted with limit hole (9)；When bearing larger vertical effect, pass through gag lever post (8) and limit hole
(9) contact limits the rapid growth of the knockdown nonlinear spring vertical vibration isolation device deformation of the precompressed.
2. the knockdown nonlinear spring vertical vibration isolation device of precompressed according to claim 1, it is characterised in that: several limits
Position hole (9) is uniformly distributed on pedestal (1).
3. the knockdown nonlinear spring vertical vibration isolation device of precompressed according to claim 1, it is characterised in that: described 1
The bottom end of number helical spring (2) is connected to the center of center groove, and top is connected to the middle bottom centre for making plate (6).
4. the knockdown nonlinear spring vertical vibration isolation device of precompressed according to claim 1, it is characterised in that: described 2
The bottom end of number helical spring (3) is connected to the middle top center for making plate (6), and top is connected to the bottom centre of upper cover plate (7).
5. the knockdown nonlinear spring vertical vibration isolation device of precompressed according to claim 1, it is characterised in that: if intervening
The uniformly distributed periphery in No. 2 helical springs (3) of stress rib (5).
6. the knockdown nonlinear spring vertical vibration isolation device of precompressed according to claim 1, it is characterised in that: in described
Make to offer several apertures on plate (6) and upper cover plate (7), and the aperture on upper cover plate (7) and the middle aperture one made on plate (6)
About one is corresponding, for wearing presstressed reinforcing steel (5)；The upper and lower ends of presstressed reinforcing steel (5) are provided with presstressed reinforcing steel anchoring piece
(51)；It is by corresponding presstressed reinforcing steel anchoring piece (51) that presstressed reinforcing steel (5) are fixed after applying prestressing force to presstressed reinforcing steel (5)
Make between plate (6) and upper cover plate (7) in, and No. 2 helical springs is made to be in preloading condition.
7. the knockdown nonlinear spring vertical vibration isolation device of precompressed according to claim 1, it is characterised in that: described pre-
Stress rib (5) uses high strength steel strand.
8. the knockdown nonlinear spring vertical vibration isolation device of precompressed according to claim 1, it is characterised in that: the limit
The surface of position bar (8) is closely covered with rubber material；The inner tight of the limit hole (9) is covered with padded coaming.
9. the knockdown nonlinear spring vertical vibration isolation device of precompressed according to claim 1, it is characterised in that: described glutinous
Stagnant damping material (4) uses damping grease.
10. the knockdown nonlinear spring vertical vibration isolation device of precompressed according to claim 1, it is characterised in that: described
Viscous damping material (4) uses viscous damping liquid；
The middle periphery for making plate (6) and pedestal (1) is provided with a circle rubber material or soft plastics seal viscous damping liquid,
And rubber material or soft plastics are in relaxed state, are neither pressurized nor tension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821848138.7U CN209277656U (en) | 2018-11-11 | 2018-11-11 | The knockdown nonlinear spring vertical vibration isolation device of precompressed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821848138.7U CN209277656U (en) | 2018-11-11 | 2018-11-11 | The knockdown nonlinear spring vertical vibration isolation device of precompressed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209277656U true CN209277656U (en) | 2019-08-20 |
Family
ID=67600805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821848138.7U Active CN209277656U (en) | 2018-11-11 | 2018-11-11 | The knockdown nonlinear spring vertical vibration isolation device of precompressed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209277656U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109267809A (en) * | 2018-11-11 | 2019-01-25 | 同济大学 | The knockdown nonlinear spring vertical vibration isolation device of precompressed |
| CN111691245A (en) * | 2020-05-29 | 2020-09-22 | 上海工程技术大学 | Rubber vibration isolator |
| CN117328301A (en) * | 2023-10-09 | 2024-01-02 | 中铁十六局集团铁运工程有限公司 | Composite rubber spring in vibration isolator for floating slab track |
-
2018
- 2018-11-11 CN CN201821848138.7U patent/CN209277656U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109267809A (en) * | 2018-11-11 | 2019-01-25 | 同济大学 | The knockdown nonlinear spring vertical vibration isolation device of precompressed |
| CN109267809B (en) * | 2018-11-11 | 2024-01-12 | 同济大学 | Vertical vibration isolation device of pre-compaction combination formula nonlinear spring |
| CN111691245A (en) * | 2020-05-29 | 2020-09-22 | 上海工程技术大学 | Rubber vibration isolator |
| CN117328301A (en) * | 2023-10-09 | 2024-01-02 | 中铁十六局集团铁运工程有限公司 | Composite rubber spring in vibration isolator for floating slab track |
| CN117328301B (en) * | 2023-10-09 | 2024-05-10 | 中铁十六局集团铁运工程有限公司 | Composite rubber spring in vibration isolator for floating slab track |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209277656U (en) | The knockdown nonlinear spring vertical vibration isolation device of precompressed | |
| CN109267809A (en) | The knockdown nonlinear spring vertical vibration isolation device of precompressed | |
| CN201835397U (en) | TMD (tuned mass damper) device | |
| CN201778394U (en) | Prestress rubber support seat | |
| Li et al. | Advances in structural control in civil engineering in China | |
| CN107327535A (en) | A kind of laminated type metal-rubber shock isolating pedestal for Substation Electric Equipment | |
| CN209082693U (en) | Prestressing without bondn assembling type node with energy-consuming device | |
| CN106522034A (en) | Floating track bed | |
| CN105696722B (en) | A kind of metal shears cut type sinker of displacement equations | |
| CN106638288A (en) | Energy-dissipation and seismic-mitigation bridge support | |
| CN207227942U (en) | A kind of spacing elastic bridge pad of drawstring | |
| CN112281643A (en) | Compound shock insulation power consumption support | |
| CN103726442B (en) | Annular steel wire rope lamination rubber compound seismic reduction and isolation bearer | |
| CN2463453Y (en) | Shock isolating independent pile platform | |
| CN110528383A (en) | Without additional vertical force buffer-type inhaul cable damping support saddle | |
| JP3124502B2 (en) | Structure of leaded rubber bearing | |
| CN201521587U (en) | Limiting type composite shock absorber | |
| CN116379085A (en) | Vibration isolator with multiple band gap characteristics | |
| CN207211413U (en) | A kind of isolation structure of private residence | |
| CN2272458Y (en) | Lead core rubber support | |
| CN109811638A (en) | A kind of friction pendulum Self-resetting earthquake isolating equipment based on STP | |
| CN206843937U (en) | A kind of combined anti-seismic system and combined anti-seismic bridge | |
| CN115378298A (en) | Vibration-damping energy harvesting device for harvesting plate | |
| CN211815207U (en) | Floating plate track with bidirectional vibration isolation | |
| CN106835952A (en) | A kind of combined anti-seismic system and combined anti-seismic bridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |