CN106246782A - A kind of rod-pulling type complex spring antivibrator of predeterminable early stage rigidity - Google Patents
A kind of rod-pulling type complex spring antivibrator of predeterminable early stage rigidity Download PDFInfo
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- CN106246782A CN106246782A CN201610902553.5A CN201610902553A CN106246782A CN 106246782 A CN106246782 A CN 106246782A CN 201610902553 A CN201610902553 A CN 201610902553A CN 106246782 A CN106246782 A CN 106246782A
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- Prior art keywords
- end cap
- complex spring
- pressure plate
- dynamic pressure
- spring
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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
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
- F16F3/10—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction
- F16F3/12—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction the steel spring being in contact with the rubber spring
-
- 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
-
- 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
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/06—Stiffness
- F16F2228/066—Variable stiffness
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses the rod-pulling type complex spring antivibrator of a kind of predeterminable early stage rigidity, it is characterized in that, it is additionally provided with backpressure device in described fairlead, this backpressure device includes two groups of precompressed pull bars and two pieces of floating platens, wherein, two pieces of described floating platens, one piece is located between described dynamic pressure plate and complex spring, and another block is located between the second end cap and complex spring;Two groups of described precompressed pull bars are distributed in the centre bore of described complex spring respectively, and, one of one group of precompressed pull bar is separately fixed on the floating platen adjacent with dynamic pressure plate, and other end is each passed through the floating platen adjacent with the second end cap and the second end cap is fixed on a limit element;One of another group precompressed pull bar is separately fixed on the floating platen adjacent with the second end cap, and other end is each passed through the floating platen adjacent with dynamic pressure plate and dynamic pressure plate is fixed on a limit element.
Description
Technical field
The present invention relates to damping device, particularly relate to use the antivibrator of complex spring.
Background technology
Complex spring full name is rubber-metal spiral complex spring, is one layer of rubber material of parcel around metal coil spring
A kind of spring of material composite sulfuration.Complex spring has the non-thread characteristic of rubber spring, has again metal coil spring big
The characteristic that deformation is big with bearing capacity, its stability and bearing capacity are better than rubber spring.Owing to complex spring has similar rubber
The characteristic working curve of glue air spring, the most relatively rubber air spring simple in construction, gas-tight risk, the most also it is used for
The energy-eliminating shock-absorbing of the large-scale vibrating equipment such as replacement rubber air spring is widely used on ore deposit, metallurgy, coal and building shock insulation.
Single metal coil spring can only be independently operated on (i.e. so-called extension spring or pressure under stretching or compression one of which state
Spring), and rubber spring often can only operate in compressive state, resistance to tension is weak, therefore the compound bullet of both composite sulfurations
Spring is typically compression spring, can only unidirectional vibration damping.If being intended to complex spring is used for two-way vibration damping occasion, then need to use at least two
Complex spring composition antivibrator, utilizes the elasticity of compression deformation of two complex springs to cut down two-way oscillation respectively.
Authorization Notice No. is that the utility application of CN 204081122 U discloses a kind of wind resistance damping for building
Spring-damper, two elastomers (i.e. two helical springs) that this antivibrator is directed in set are respectively and fixedly connected with on center shaft
On middle limiter assembly, when antivibrator is tension or in compression, one of them elastomer tension, another elastomer pressurized, thus real
Existing wind resistance damping.But, this utility model patent is clearly present following shortcoming: 1, need two helical springs, whole antivibrator
Length longer, be not suitable in the less space mounting of distance;2, it is difficult to even in technique it cannot guarantee that two springs
Rigidity (including tensible rigidity and compression stiffness) is equal, therefore wind direction difference damping effect i.e. difference;3, antivibrator cannot be changed
Initial stiffness, reach preset wind resistance rank, reduce damping cost purpose;4, a helical spring is simultaneously in stretching and compression
Working under two states, the metal material of existing spring and production technology are difficult to meet requirement, can only be by reducing helical spring
Regime of elastic deformation realize stretching with compression two kinds of duties, this obviously can cause the wasting of resources.To by compound bullet
Spring the most also needs to utilize two complex spring composition wind resistance antivibrators as above-mentioned utility model patent for wind-resistant vibration, and
The antivibrator being composed so the most also possess above-mentioned patent the same shortcoming.
It addition, people for the design of the anti-seismic structure of anti-seismic structure especially high-rise pursue a kind of " resist " and
" consuming " the comprehensive anti-seismic performance combined, i.e. under weak wind shakes the effect with small earthquake, anti-seismic structure can carry for building main body
Resist the effect of external load for extra additional stiffness, keep the integrity of agent structure, it is to avoid in main structure body occurs
Portion is damaged;Under high wind shakes the effect with violent earthquake, anti-seismic structure then starts yield deformation, by the antivibrator in anti-seismic structure
Damping action dissipate external energy, make main structure body shake and violent earthquake is unlikely to be seriously damaged even to fall at high wind
Collapse.This just requires that being applied to anti-seismic structure can keep rigidity under the effect of outside weak load, does not deforms;Carry by force in outside
Power consumption then can be deformed under the effect of lotus.But existing isolated component, either metal spring antivibrator or rubber air bullet
Spring, all cannot perfectly meet above-mentioned antidetonation demand.
The application for a patent for invention of Publication No. CN101457553A discloses one, and " spring stiffness adjustable tuning quality subtracts
Shake device ", this vibroshock is a kind of composite buffer, changes its characteristic frequency by changing the thickness of mass, viscous by changing
The flow of the working media of stagnant antivibrator changes its damping ratio, changes its rigidity by the effective active length changing spring, its
The means of effective active length of middle change spring have three kinds, and one is use curing materials that spring is positioned at solidification cylinder one section
Solidification, two toward constraint block of filling in intracardiac in helical spring, and the two interference fit, makes the one section of spring contacted with constraint block
Losing efficacy, three is in constraint block surface configuration helical raised, helical raised is stuck between spring wire, makes to block between spring wire
There is one section of spring failure of helical raised.The means of above-mentioned three kinds of effective active lengths changing spring are simply not proposed to multiple
Close spring;Effective active length of the resistance amortisseur not only spring of the most this form substantially shortens, and can only compress power consumption
Vibration damping, it is impossible to stretching passive energy dissipation.
Summary of the invention
The technical problem to be solved is to provide the rod-pulling type complex spring damping of a kind of predeterminable early stage rigidity
Device, this antivibrator not only maintains effective active length of spring, and the most compressible passive energy dissipation, the most stretchable power consumption subtracts
Shake.
The present invention solves the technical scheme of above-mentioned technical problem:
The rod-pulling type complex spring antivibrator of a kind of predeterminable early stage rigidity, this antivibrator includes fairlead, this fairlead
One be provided with the first end cap, other end is provided with the second end cap;It is coaxially provided with spring in described fairlead;One drive member by
The outside of the first end cap puts in described fairlead, and this drive member includes dynamic pressure plate and drive rod, wherein said dynamic pressure
Plate is positioned at the head of spring, and described drive rod is located on dynamic pressure plate and extends fairlead along fairlead axis;It is characterized in that,
Described spring is complex spring (full name is rubber-metal spiral complex spring);
Being additionally provided with backpressure device in described fairlead, this backpressure device includes that quantity two groups of at least three respectively are pre-
Pressure pull bar, two pieces of floating platens and the limit element that quantity is described two groups of precompressed pull bar quantity sums, wherein,
Two pieces of described floating platens, one piece is located between described dynamic pressure plate and complex spring, and another block is located at the second end
Between lid and complex spring;
Two groups of described precompressed pull bars are distributed in the centre bore of described complex spring rotating around the axisymmetrical of fairlead,
And, of one group of precompressed pull bar is separately fixed on the floating platen adjacent with dynamic pressure plate, and other end is each passed through and second
Floating platen and the second end cap that end cap is adjacent are fixed on a limit element;Fix respectively for one of another group precompressed pull bar
On the floating platen adjacent with the second end cap, other end is each passed through the floating platen adjacent with dynamic pressure plate and dynamic pressure plate is fixed
On a limit element;
Described limit element is respectively acting on described dynamic pressure plate and the second end cap, by two groups of precompressed pull bars by institute
Distance limit between the two pieces of floating platens stated be complex spring be compressed to preset early stage rigidity time length.
For ease of the distance between two pieces of floating platens of regulation so that it is equal to complex spring is compressed to preset the length of rigidity
Degree, the limit element described in such scheme is hexagonal flange nut, and described precompressed pull bar is polished rod bolt, and the two screw thread is even
Connect and be fixed together.
In order to avoid producing rigid impact between limit element and dynamic pressure plate and the second end cap, in such scheme, described
Elastic polymer material it is embedded with respectively, such as sheet rubber on the surface that dynamic pressure plate and the second end cap contact with limit element.
Antivibrator of the present invention can be widely used for various one-dimensional shock insulation field, e.g., plant equipment internal vibration every
From, equipment Foundations shock insulation, the seismic hardening of building structure, isolation seism building base etc..
Antivibrator of the present invention has the advantages that
(1) only need one group of complex spring that antivibrator no matter suffered axial force just can be made to be forward or reverse, described
Complex spring all can produce elastic compression deformation and consume energy, not only save a spring, and greatly shorten damping
The length of device.
(2) when the defensive ability/resistance ability of early stage rigidity set by dynamic loading is more than antivibrator, bidirectional elastic deformation symmetry, because of in addition
The effect that the change of the positive negative direction of power load does not affect its compression and consumes energy.
(3) length changing precompressed pull bar can change the early stage rigidity of whole antivibrator, when early stage rigidity is more than zero,
External force cannot make antivibrator be deformed before overcoming this early stage rigidity, when therefore using it for building structure aseismatic, and can be pre-
If earthquake protection grade, significantly reduce shock insulation cost.
(4) preset the most predeterminable antivibrator of the length rigidity in early days of described precompressed pull bar, and described complex spring is effective
Active length is constant, will not change the original characterisitic parameter of complex spring.
Accompanying drawing explanation
Fig. 1~5 is the structural representation of a specific embodiment of antivibrator of the present invention, and wherein, Fig. 1 is front view
(section view), Fig. 2 is the A-A sectional view of Fig. 1, and Fig. 3 is the B-B sectional view of Fig. 1, and Fig. 4 is the enlarged drawing of local I in Fig. 1, and Fig. 5 is
The enlarged drawing of local II in Fig. 1.
Fig. 6~8 is the structural representation of second specific embodiment of antivibrator of the present invention, and wherein, Fig. 6 is front view
(section view), Fig. 7 top view, Fig. 8 is upward view.
Detailed description of the invention
Example 1
The rod-pulling type complex spring antivibrator seeing the predeterminable early stage rigidity in Fig. 1, this example is that one can be used for building
The energy-dissipating device of Seismic Strengthening, it includes fairlead 1, is respectively provided at first end cap 2 and second at fairlead about 1 two
End cap 3, wherein, described first end cap 2 with and the second end cap 3 is fixing with the two ends of fairlead respectively by screw is connected.Described
Fairlead 1 in be provided with a complex spring 4 (being composited by cylindrical metal spiral compression spring and elastomeric material) vertically,
One drive member is put in described fairlead 1 by the first end cap 2 center;Wherein, described drive member is by being positioned at compound bullet
Spring 4 upper end and the dynamic pressure plate 5 that coordinate dynamic with fairlead 1 and the drive rod 5-being extended upward fairlead 1 by dynamic pressure plate 5 upper surface
1 is constituted, and the end that described drive rod 5-1 is positioned at outside fairlead 1 is provided with the connection ring 5-2 of band hinge hole 13, described connection ring 5-2
The mode being threaded connection with drive rod 5-1 is docking together.
Seeing Fig. 1, the outside of described second end cap 3 is provided with the connecting rod 12 being connected therewith, the end of this connecting rod 12
End is provided with hinge hole 13.
Seeing Fig. 1~5, be provided with backpressure device in described fairlead 1, this backpressure device includes two groups as precompressed pull bar
Polished rod bolt, two pieces of floating platens and six be only used as the hexagonal flange nut 10 of limit element;Wherein, two groups of described polished rods
Bolt is the first group of polished rod bolt 8 and second group of polished rod bolt 9 being made up of three polished rod bolts respectively;Two pieces of described floatings
Pressing plate is the first floating platen 6 being located between described dynamic pressure plate 5 and complex spring 4 and is located at the second end cap 3 and complex spring 4
Between the second floating platen 7;
Seeing Fig. 1~5, described two groups of polished rod bolts are distributed in described complex spring 4 rotating around fairlead 1 axisymmetrical
In centre bore, each polished rod bolt is each parallel to fairlead 1 axis;And, described first group of polished rod bolt 8 has externally threaded
One sequentially pass through from bottom to top after second floating platen the 7, first floating platen 6 and dynamic pressure plate 5 with a hexagonal flange nut
10 are threaded togather;It is heavy to be provided with in the position that each first group of polished rod bolt 8 passes on described second floating platen 7
Hole, in the head of a nail of described first group of polished rod bolt 8 following is located in this counterbore and is welded and fixed extremely with the second floating platen 7;Institute
State on the first floating platen 6 and dynamic pressure plate 5 in the position that each first group of polished rod bolt 8 passes respectively with first passed through
Group polished rod bolt 8 is dynamic to be coordinated.Described second group of polished rod bolt 9 has externally threaded one and sequentially passes through the first floating from top to bottom
It is threaded togather with a hexagonal flange nut 10 after pressing plate the 6, second floating platen 7 and the second end cap 3;Described first floats
The position passed at each second group of polished rod bolt 9 on dynamic pressure plate 6 is provided with counterbore, described second group of polished rod bolt 9 top
In the head of a nail is located in this counterbore and it is welded and fixed extremely with the first floating platen 6;On described second floating platen 7 and the second end cap 3
Move with the second group of polished rod bolt 9 passed through respectively in the position that each second group of polished rod bolt 9 passes and coordinate.
See Fig. 1 and combine Fig. 4, in order to avoid producing just between hexagonal flange nut 10 and dynamic pressure plate 5 and the second end cap 3
Property clash into, the surface that described dynamic pressure plate 5 contacts with hexagonal flange nut 10 with the second end cap 3 is embedded with flexible rubber respectively
Film 11.
Antivibrator described in this example can assemble and preset in early days rigidity as follows:
By Fig. 1~5, other parts in addition to the first end cap 2 and connection ring 5-2 are all assembled, turn hexagonal flange
Nut 10 makes it be respectively acting on described dynamic pressure plate 5 and the second end cap 3, by two groups of polished rod bolts by two pieces of floating platens
Between distance limit be complex spring 4 be compressed to preset early stage rigidity time length, load onto the first end cap 2 He the most successively
Connect ring 5-2.Wherein, length when complex spring 4 is compressed to the early stage rigidity preset can be according to the characteristic of complex spring 4
Curve and the early stage Rigidity Calculation that need to preset obtain.Although two pieces of floating platens and complex spring 4 are respectively positioned on inconvenience in fairlead 1
Directly measure the distance between two pieces of floating platens, but can calculate by measuring the overhang of polished rod bolt.It addition,
In order to prevent hexagonal flange nut 10 from loosening in the vibration processes that earthquake produces, after debugging is good can by hexagonal flange nut 10 with
Corresponding polished rod bolt welding is together.
Seeing Fig. 1, when antivibrator is by axial external load, no matter external load is pressure or pulling force, as long as
It is preset the resistivity of rigidity in early days less than above-mentioned precompression, and complex spring 4 will not continue to deformation.Work as external load
During more than described precompression, if external load is pressure, it is multiple that described dynamic pressure plate 5 promotes described first floating platen 6 to continue compression
Close spring 4 and produce elastic deformation power consumption, owing to first group of described polished rod bolt 8 moves join with the first floating platen 6 and dynamic pressure plate 5
Closing, second group of described polished rod bolt 9 moves and coordinates with the second floating platen 7 and the second end cap 3, thus without hindering complex spring
4 continue compression;If external load is pulling force, the two pieces of floating platen relative movement compressions of tractive respectively of described two groups of polished rod bolts
Complex spring 4 produces elastic deformation power consumption.Because the dynamic loading no matter suffered by antivibrator is for drawing or pressing, the final deformation produced is equal
It is the compression of same complex spring 4, so the bidirectional elastic deformation necessarily symmetry of antivibrator.
Example 2
Seeing Fig. 6~8, the rod-pulling type complex spring antivibrator of the predeterminable early stage rigidity in this example is that one can be used for building
Building the isolation mounting (also referred to as shock isolating pedestal) of thing vertical earthquake isolating, this example mainly has compared with example 1 to be distinguished as follows:
1, as shock isolating pedestal, for ease of installing, this example eliminates connecting rod set on second end cap 3 in example 1, and
Second end cap 3 is first extended axially downwards from edge and extends radially outwards again, and be uniformly provided with link bolt hole 15 in edge,
Using the second end cap 3 as the base of shock isolating pedestal, the length extended the most axially downwards need to be more than described second group of polished rod bolt 9
It is exposed at the length of the second end cap 3 Outboard Sections.The drive rod 5-1 of described drive member be one by dynamic pressure plate 5 upper surface to guiding
The outer metal tube extended of set 1, this metal tube is connected by sunk screw is fixing with dynamic pressure plate 5, and described metal tube is positioned at fairlead 1
Outer end is provided with connection supporting plate 14, and, this connection supporting plate 14 is again provided with link bolt hole 15.The first described end cap 2
Extended internally by fairlead 1 upper end and constitute.
2, described first group of polished rod bolt 8 and second group of polished rod bolt 9 are made up of five polished rod bolts respectively, corresponding work
Quantity for the hexagonal flange nut 10 of limit element increases to ten.
This example other embodiment other than the above is same as Example 1.
Claims (5)
1. a rod-pulling type complex spring antivibrator for predeterminable early stage rigidity, this antivibrator includes fairlead, this fairlead
One is provided with the first end cap, and other end is provided with the second end cap;It is coaxially provided with spring in described fairlead;One drive member is by
The outside of one end cap puts in described fairlead, and this drive member includes dynamic pressure plate and drive rod, wherein said dynamic pressure plate
Being positioned at the head of spring, described drive rod is located on dynamic pressure plate and extends fairlead along fairlead axis;It is characterized in that,
Described spring is complex spring;
Being additionally provided with backpressure device in described fairlead, this backpressure device includes that quantity two groups of precompressed of at least three respectively are drawn
Bar, two pieces of floating platens and quantity are the limit element of described two groups of precompressed pull bar quantity sums, wherein,
Two pieces of described floating platens, one piece is located between described dynamic pressure plate and complex spring, another block be located at the second end cap with
Between complex spring;
Two groups of described precompressed pull bars are distributed in the centre bore of described complex spring rotating around the axisymmetrical of fairlead, and,
One of one group of precompressed pull bar is separately fixed on the floating platen adjacent with dynamic pressure plate, and other end is each passed through and the second end cap
Adjacent floating platen and the second end cap are fixed on a limit element;Another group one of precompressed pull bar be separately fixed at
On the floating platen that second end cap is adjacent, other end is each passed through the floating platen adjacent with dynamic pressure plate and dynamic pressure plate is fixed on one
On limit element;
Described limit element is respectively acting on described dynamic pressure plate and the second end cap, by two groups of precompressed pull bars by described
Distance limit between two pieces of floating platens be complex spring be compressed to preset early stage rigidity time length.
The rod-pulling type complex spring antivibrator of a kind of predeterminable early stage rigidity the most according to claim 1, it is characterised in that
The rod-pulling type complex spring antivibrator of this predeterminable early stage rigidity is the antivibrator reinforced for building structure aseismatic.
The rod-pulling type complex spring antivibrator of a kind of predeterminable early stage rigidity the most according to claim 1, it is characterised in that
The rod-pulling type complex spring antivibrator of this predeterminable early stage rigidity is the vertical earthquake isolating equipment for Antiseismic building.
4. according to the rod-pulling type complex spring antivibrator of a kind of predeterminable early stage rigidity described in claim 1,2 or 3, its feature
Being, described limit element is hexagonal flange nut, and described precompressed pull bar is polished rod bolt, and the two is threaded is fixed on
Together.
5. according to the rod-pulling type complex spring antivibrator of a kind of predeterminable early stage rigidity described in claim 1,2 or 3, its feature
It is, the surface that described dynamic pressure plate and the second end cap contact with limit element is embedded with elastic polymer material respectively.
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CN201610902553.5A CN106246782B (en) | 2016-10-17 | 2016-10-17 | A kind of rod-pulling type complex spring damper of predeterminable early stage rigidity |
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CN201610902553.5A CN106246782B (en) | 2016-10-17 | 2016-10-17 | A kind of rod-pulling type complex spring damper of predeterminable early stage rigidity |
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US5120277A (en) * | 1989-07-06 | 1992-06-09 | Hutchinson | Tensioner for a transmission belt |
CN102221061A (en) * | 2011-06-16 | 2011-10-19 | 中国电力科学研究院 | Rubber spring damping shock absorber |
CN102401053A (en) * | 2010-09-15 | 2012-04-04 | 溧阳市振大铁路设备有限公司 | Compound spring for train steering frame |
CN202298970U (en) * | 2011-09-30 | 2012-07-04 | 福州大学 | Device having three-dimensional seismic isolation and anti-turnover structure |
CN202611007U (en) * | 2012-05-06 | 2012-12-19 | 上海路博橡胶减振器技术有限公司 | Vibration attenuation control device of suspension type tuned mass damper |
JP2014009791A (en) * | 2012-07-02 | 2014-01-20 | Tokkyokiki Corp | Earthquake tremor reducing apparatus |
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2016
- 2016-10-17 CN CN201610902553.5A patent/CN106246782B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5120277A (en) * | 1989-07-06 | 1992-06-09 | Hutchinson | Tensioner for a transmission belt |
CN102401053A (en) * | 2010-09-15 | 2012-04-04 | 溧阳市振大铁路设备有限公司 | Compound spring for train steering frame |
CN102221061A (en) * | 2011-06-16 | 2011-10-19 | 中国电力科学研究院 | Rubber spring damping shock absorber |
CN202298970U (en) * | 2011-09-30 | 2012-07-04 | 福州大学 | Device having three-dimensional seismic isolation and anti-turnover structure |
CN202611007U (en) * | 2012-05-06 | 2012-12-19 | 上海路博橡胶减振器技术有限公司 | Vibration attenuation control device of suspension type tuned mass damper |
JP2014009791A (en) * | 2012-07-02 | 2014-01-20 | Tokkyokiki Corp | Earthquake tremor reducing apparatus |
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