CN106351353A - Spiral spring damper with adjustable early-period rigidity - Google Patents
Spiral spring damper with adjustable early-period rigidity Download PDFInfo
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- CN106351353A CN106351353A CN201610906757.6A CN201610906757A CN106351353A CN 106351353 A CN106351353 A CN 106351353A CN 201610906757 A CN201610906757 A CN 201610906757A CN 106351353 A CN106351353 A CN 106351353A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/08—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against transmission of vibrations or movements in the foundation soil
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Abstract
The invention discloses a spiral spring damper with adjustable early-period rigidity. The spiral spring damper is characterized in that a reverse pressure device is also arranged in a guide sleeve; the reverse pressure device comprises two groups of (at least three) prepressing steel cables and two floating press plates, wherein the two groups of prepressing steel cables are symmetrically distributed in a center hole of a cylindrical spiral compression spring in a linear state by surrounding the axial line of the guide sleeve; one end of one group of prepressing steel cables is fixed on the floating press plate adjacent to a driving component; the other end of the one group of prepressing steel cables penetrates through the floating press plate adjacent to a second end cover and is anchored on the second end cover through a steel rope self-locking tensioning anchor; one end of the other group of prepressing steel cables is fixed on the floating press plate adjacent to the second end cover; the other end of the other group of prepressing steel cables penetrates the floating press plate adjacent to the driving component and is anchored on the driving component by the steel rope self-locking tensioning anchor; the two groups of prepressing steel cables are tensioned, so that the cylindrical spiral compression spring is always clamped between the two floating press plates.
Description
Technical field
The present invention relates to damping device, more particularly to adopt the antivibrator of spiral compression spring.
Background technology
Antivibrator is the damping device that a kind of resistance to provide motion carrys out depletion kinergety.Consumed energy using antivibrator
Damping is a kind of conventional art being widely used in space flight, aviation, military project, firearms and automobile and other industries.From twentieth century
Since the seventies, people start progressively using antivibrator energy-dissipating and shock-absorbing technology application to building, bridge, railway etc. tie
In structure engineering.And coiled spring damper is widely used in the characteristic of its impact resistance height, low cost, good damping effect
In the anti-seismic structure of various buildings.
The design of the anti-seismic structure for building especially skyscraper for the people is pursued one kind " resisting " and is combined with " consumption "
Synthesis anti-seismic performance, that is, in the presence of weak wind shake and small earthquake anti-seismic structure can provide for building main body extra attached
Plus rigidity is resisting the effect of external load, the integrity of retainer body structure, it is to avoid internal injury in main structure body, and
High wind shake and violent earthquake in the presence of anti-seismic structure then start yield deformation, by the damping action of the antivibrator in anti-seismic structure
Come the external energy that to dissipate, make main structure body high wind shake and violent earthquake in be unlikely to be seriously damaged or even collapse it is ensured that people
Safety of life and property.This just requires to be applied to anti-seismic structure and can keep rigidity in the presence of outside weak load, does not occur
Deformation；Power consumption then can be deformed in the presence of outside strong load.But existing spring-damper also cannot meet above-mentioned antidetonation
Demand, any spring-damper all can produce more or less elastic deformation in the presence of external load.Therefore above-mentioned people
The performance of the Antiseismic building structure pursued is difficult to realize.
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 center shaft
On middle limiter assembly, when antivibrator is tension or in compression, one of elastomer tension, another elastomer is pressurized, thus real
Existing wind resistance damping.But, this utility model patent is clearly present following shortcomings: 1, needs two helical springs, whole antivibrator
Length longer, be not suitable for apart from less space mounting；2nd, it is difficult in technique even it cannot guarantee that two springs
Rigidity (including tensible rigidity and compression stiffness) is equal, and therefore wind direction difference damping effect is difference；3rd, antivibrator cannot be changed
Early stage rigidity, reach default wind resistance rank, reduce the purpose of damping cost；4th, a helical spring is simultaneously in stretching and compression
Work under two states, the metal material of existing spring and production technology are difficult to meet and require, can only be by reducing helical spring
Regime of elastic deformation come to realize stretching with compression two kinds of working conditions, this obviously can cause the wasting of resources.
The patent application of Publication No. cn 102409777a discloses " a kind of structure three-dimensional shock insulation and anti-overturning devices ",
This device includes laminated rubber damping bearing and is located at the bullet being made up of spiral compression spring of laminated rubber damping bearing bottom
Spring shock isolating pedestal, wherein spring shock-proof bearing are mainly used for isolating vertically seismic wave；But because vertically seismic wave is two-way,
And the spring shock-proof bearing in this invention is only capable of compression power consumption；Therefore this device cannot isolator earthquake centre earth's surface moment downward
The negative wave of movement.Additionally, this device also has the rigidity that cannot change antivibrator, reach default antidetonation earthquake intensity, reduce damping
The purpose of cost.
The application for a patent for invention of Publication No. cn101457553a discloses one kind, 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 the middle effective active length changing spring have three kinds, and one is section spring being located in solidification cylinder using curing materials
Solidification, two is to fill in constraint block toward the center in the hole of helical spring, and the two interference fit makes the one section of spring contacting with constraint block
Lost efficacy, three is to arrange helical raised on constraint block surface, and helical raised is stuck between spring wire, makes card between spring wire
There is one section of spring failure of helical raised.As can be seen here, although the spring in this patent application scheme can change rigidity, institute
Not only effectively active length substantially shortens the spring stated, and can only compress passive energy dissipation it is impossible to stretch passive energy dissipation.In addition,
Changing the rigidity of spring by way of changing the effective active length of spring, range of accommodation is subject to spring itself material and shape
Constraint, range of accommodation is extremely limited.
Content of the invention
The technical problem to be solved is to provide a kind of adjustable coiled spring damper of early stage rigidity, this damping
Device not only maintains effective active length of spring, and both compressible passive energy dissipations, and stretchable passive energy dissipation.
The technical scheme that the present invention solves above-mentioned technical problem is:
A kind of adjustable coiled spring damper of early stage rigidity, this antivibrator includes fairlead, and one of this fairlead sets
There is the first end cap, other end is provided with the second end cap；It is coaxially provided with cylindrical helical compression spring, a driving in described fairlead
Component is put in described fairlead by the outside of the first end cap, and this drive member includes dynamic pressure plate and drive rod, wherein said
Dynamic pressure plate be located at cylindrical helical compression spring head, described drive rod be located on dynamic pressure plate and along fairlead axis extend
Go out fairlead；It is characterized in that,
Be additionally provided with backpressure device in described fairlead, this backpressure device include quantity respectively at least two groups of three pre-
Compressed steel rope, two pieces of floating platens and quantity are the cable wire self-locking tensioning anchorage of described two groups of precompressed cable wire quantity sums, wherein,
Two pieces of described floating platens, one piece is located between described dynamic pressure plate and cylindrical helical compression spring, another piece
It is located between the second end cap and cylindrical helical compression spring；
Described cable wire self-locking tensioning anchorage is by the first self-centering locking fixture, the second self-centering locking fixture, anti-torsion pressure
Contracting spring and plane bearing composition, wherein:
A) the first self-centering locking fixture described in has a connecting seat, and the middle part of this connecting seat one end is provided with axially extending
Cylindrical boss, the internal of this boss be provided with the first taper jaw being made up of 3～5 claw pieces, periphery surface cover along axial line
It is provided with tensioning swivel nut；Wherein, the microcephaly of described first tapered clamp points to connecting seat, and the outer peripheral face of described tensioning swivel nut is positive six sides
Shape；
B) the second self-centering locking fixture described in has a tapered sleeve, and the internal of this tapered sleeve is sequentially provided with by 3～5 along axis
Second taper jaw of claw piece composition and hollow bolt, wherein, the described head of hollow bolt and the second taper jaw
Relatively, the outer peripheral face of described tapered sleeve is regular hexagon to major part；
C) plane bearing described in is by the ball retainer assembly end face relative with tapered sleeve with being respectively provided at tensioning swivel nut
On ring raceway constitute, wherein said ring raceway matched with the ball in ball retainer assembly；
D) described second self-centering locking fixture is located at the outside of described tensioning swivel nut head, and the second taper jaw microcephaly
Consistent with the sensing of the first taper jaw microcephaly；Described plane bearing is located between described tensioning swivel nut and tapered sleeve, described
Anti- torsion compression spring is located in the endoporus of tensioning swivel nut；Turn round compression through anti-between precompressed cable wire is by the calvus of the first taper jaw
After passing between the calvus of the centre bore of spring and plane bearing and the second taper jaw, under the effect of precompressed cable tension,
Described anti-turn round compression spring one acts on the first taper jaw, and other end acts on tapered sleeve；
Two groups of described precompressed cable wires are symmetrically distributed in described cylinder spiral shell rotating around the axis of fairlead with linear state
The center in the hole of rotation compression spring, and, one of one group of precompressed cable wire is separately fixed on the floating platen adjacent with dynamic pressure plate,
Other end is each passed through the floating platen adjacent with the second end cap and is anchored at the second end cap by described cable wire self-locking tensioning anchorage
On；One of another group of precompressed cable wire is separately fixed on the floating platen adjacent with the second end cap, other end be each passed through with
The adjacent floating platen of dynamic pressure plate is anchored on dynamic pressure plate by described cable wire self-locking tensioning anchorage；
Being respectively equipped with the through hole through this precompressed cable wire through the position of described precompressed cable wire on described floating platen,
The aperture of this through hole is more than the diameter of worn precompressed cable wire；
Two groups of precompressed cable wires of tensioning, make the distance between two pieces of floating platens be equal to and compress cylindrical helical compression spring
Length to default early stage rigidity.
In such scheme, described precompressed cable wire can be steel wire rope or prestressing force steel hinge line.
The adjustable coiled spring damper of early stage rigidity of the present invention, wherein said two groups of precompressed cable wires with described
The method anchoring that can adopt routine that floating platen connects, may also be employed the u similar to lifting bolt or by bar bending
Shape component system connects fixation.
Antivibrator of the present invention can be widely used for various one-dimensional shock insulation fields, 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) it is positive or reverse for only needing a spiral compression spring can make the no matter suffered axial force of antivibrator, institute
The spiral compression spring stated all can produce elastic compression deformation and consume energy, and not only save a spring, and greatly shorten
The length of antivibrator.
(2) when dynamic loading is more than the defensive ability/resistance ability of early stage rigidity set by antivibrator, bidirectional elastic deformation is symmetrical, therefore outer
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 cable wire 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, can be pre-
If earthquake protection grade, significantly reduce shock insulation cost.
(4) length presetting described precompressed cable wire is predeterminable antivibrator early stage rigidity, and described cylindrical helical pressure
A circle is not had to lose efficacy in contracting spring, that is, effectively active length is constant, will not change the original characteristic of cylindrical helical compression spring
Parameter.
(5) using cable wire self-locking tensioning anchorage, the other end of precompressed cable wire is fixed on dynamic pressure plate and the second end cap, one
The length of precompressed cable wire can be adjusted, two be using anti-turn round compression spring and the first self-centering locking fixture combine work
With can effectively prevent precompressed cable wire from twisting during carrying out length adjustment and changing the characterisitic parameter of cable wire.
Brief description
Fig. 1～6 are 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 c-c sectional view of Fig. 1, and Fig. 5 is to look up
Figure, Fig. 6 is the enlarged drawing of Fig. 1 local.
Fig. 7～11 are the structural representation of cable wire self-locking tensioning anchorage in the illustrated embodiment of Fig. 1～6, wherein, based on Fig. 7
View (section view), in figure dotted line represents precompressed cable wire, and Fig. 8 is upward view, and Fig. 9 is the d-d profile of Fig. 7, and Figure 10 is the e- of Fig. 7
E profile, Figure 11 is the f-f sectional view of Fig. 7.
Figure 12～16 are the structural representation of second specific embodiment of antivibrator of the present invention, wherein, Tu12Wei
Front view (section view), Figure 13 is the g-g sectional view of Figure 12, and Figure 14 is the h-h sectional view of Figure 12, and Figure 15 is top view, Tu16Wei
Upward view.
Figure 17～21 are the structural representation of the 3rd specific embodiment of antivibrator of the present invention, wherein, Tu17Wei
Front view (section view), Figure 18 is the i-i sectional view of Figure 17, and Figure 19 is the j-j sectional view of Figure 17, and Figure 20 is top view, Tu21Wei
Upward view.
Specific embodiment
Example 1
Referring to Fig. 1, the adjustable coiled spring damper of early stage rigidity in this example is that one kind can be used for building structure aseismatic
The energy-dissipating device reinforced, it includes fairlead 1, the first end cap 2 being respectively provided at fairlead 1 two and the second end cap 3, wherein,
Described first end cap 2 with and the second end cap 3 be fixedly connected with the two ends of fairlead respectively by screw.In described fairlead 1
It is provided with a cylindrical helical compression spring 4 vertically, a drive member is put in described fairlead 1 by the first end cap 2 center
It is pressed on described cylindrical helical compression spring 4, wherein, described drive member is by cylindrical helical compression spring 4
End and the dynamic pressure plate 5 with the dynamic cooperation of fairlead 1 and the drive rod 5-1 structure being extended upward fairlead 1 by dynamic pressure plate 5 upper surface
Become, the end that described drive rod 5-1 is located at outside fairlead 1 is provided with connection ring 5-2 with hinge hole 13, described connection ring 5-2 with
The mode that drive rod 5-1 is threaded connection is docking together.
Referring to Fig. 1 and 5, the outside of described second end cap 3 is provided with two connection otic placodes 12, Mei Yilian being connected therewith
Ear connecting plate 12 is provided with hinge hole 13.
Referring to Fig. 1～6, in described fairlead 1, be provided with backpressure device, this backpressure device include two groups of precompressed cable wires, two
Block floating platen and seven cable wire self-locking tensioning anchorages 14；Wherein, two groups of described precompressed cable wires are by four precompressed cable wire groups
The first group of precompressed cable wire 8 becoming and second group of precompressed cable wire 9 being made up of three precompressed cable wires；Two pieces of described floating platens are
It is located at the first floating platen 6 between the dynamic pressure plate 5 of described drive member and cylindrical helical compression spring 4 and be located at the second end
The second floating platen 7 between lid 3 and cylindrical helical compression spring 4；This two floating platen inner surface with fairlead 1 respectively
Dynamic cooperation.
Referring to Fig. 7～11, each cable wire self-locking tensioning anchorage 14 is by the first self-centering locking fixture, the second self-centering locking
Fixture, anti-torsion compression spring 14-1 and plane bearing 14-2 composition, wherein:
The first described self-centering locking fixture has a connecting seat 14-3, and the edge of this connecting seat 14-3 is provided with installing hole
14-12, the middle part of lower end is provided with axially extended cylindrical boss 14-4, and the internal of this boss 14-4 is provided with first along axial line
Taper hole 14-5, is provided with the first taper jaw 14-7 being made up of 3 claw pieces in this taper hole, the outer peripheral face of described boss 14-4 is sheathed
There is tensioning swivel nut 14-6, threaded therebetween；Wherein, the microcephaly of described first tapered clamp 14-7 points to connecting seat 14-3,
The outer peripheral face of described tensioning swivel nut 14-6 is regular hexagon；
The second described self-centering locking fixture has a tapered sleeve 14-8, internal being sequentially provided with along axis of this tapered sleeve 14-8
One section of second taper hole 14-13 and one section of screwed hole；Wherein, it is provided with, in the second taper hole 14-13, the second taper being made up of 3 claw pieces
Jaw 14-9, described screw thread in the hole is provided with hollow bolt 14-10, the head of hollow bolt 14-10 and the second taper jaw 14-
Relatively, the outer peripheral face of described tapered sleeve 14-8 is regular hexagon to 9 major part；
Described plane bearing 14-2 by ball retainer assembly 14-11 and is respectively provided at tensioning swivel nut 14-6 and tapered sleeve
Ring raceway on the relative end face of 14-8 is constituted, in wherein said ring raceway and ball retainer assembly 14-11
Ball matches；
Described second self-centering locking fixture is located at the outside of tensioning swivel nut 14-6 head, and the second taper jaw 14-9
Microcephaly is consistent with the sensing of the first taper jaw 14-7 microcephaly；Described plane bearing 14-2 be located at described tensioning swivel nut 14-6 with
Between tapered sleeve 14-8, described anti-torsion compression spring 14-1 is located in the endoporus of tensioning swivel nut 14-6.When precompressed cable wire is by first
Centre bore through anti-torsion compression spring 14-1 and plane bearing 14-2 and the second tapered clamp between the calvus of taper jaw 14-7
After passing between the calvus of pawl 14-9, under the effect of precompressed cable tension, described anti-turn round compression spring 14-1 one acts on
On first taper jaw 14-7, other end acts on tapered sleeve 14-8.
Referring to Fig. 1～6, described two groups of precompressed cable wires are distributed in described respectively with linear state around fairlead 1 axisymmetrical
The center in the hole of cylindrical helical compression spring 4, each precompressed cable wire is each parallel to fairlead 1 axis, and first group of precompressed
The distance away from fairlead 1 axis for the cable wire 8 is more than the distance away from fairlead axis for second group of precompressed cable wire 9；Wherein, described first group
The following of precompressed cable wire 8 is fixed on the second floating platen 7 by lifting bolt 15 respectively, and top is each passed through the first floating platen
6 are anchored on described dynamic pressure plate 5 by a cable wire self-locking tensioning anchorage 14；The top of described second group of precompressed cable wire 9 respectively by
Lifting bolt 15 is fixed on the first floating platen 6, and following passes through the second floating platen 7 by a cable wire self-locking tensioning anchorage 14
It is anchored on the second end cap 3.The position passing through in each first group of precompressed cable wire 8 on described first floating platen 6 is provided with confession
The first through hole 10 that it passes through, the aperture of this first through hole 10 is more than the diameter of described first group of precompressed cable wire 8；Described dynamic pressure
On plate 5, it is equipped with the first anchoring anchoring this first group of precompressed steel wire rope 8 through position in each first group of precompressed cable wire 8
Hole 5-3；The position passing through in each second group of precompressed cable wire 9 on described second floating platen 7 is provided with second passing through for it
Through hole 11, the aperture of this second through hole 11 is more than the diameter of described second group of precompressed cable wire 9；On the second described end cap 3, every
Piece second group of precompressed cable wire 9 is equipped with the second anchor hole 3-1 of second group of precompressed steel wire rope 9 of anchoring through position.Described
One method being fixed in respective members by lifting bolt 15 of precompressed cable wire is: lifting bolt 15 is fixed on corresponding structure
On part, then one of precompressed cable wire is on the suspension ring be connected on lifting bolt, and fixing by rope cramp (in figure is not drawn into)
Extremely.
Referring to Fig. 1, the connecting seat 14-3 of described cable wire self-locking tensioning anchorage 14 is fixed on the following table of the second end cap 3 by screw
Face or the upper surface of dynamic pressure plate 5.
Described precompressed cable wire in this example can be steel wire rope or prestressing force steel hinge line, when being embodied as, can
Voluntarily choose according to actual needs.
Referring to Fig. 1～6 and with reference to Fig. 7～11, in order to realize the purpose of default early stage rigidity, above-mentioned two groups of precompressed cable wires
Install and tensioning method is as described below: (1) first spy according to antivibrator rigidity of default early stage and cylindrical helical compression spring 4
Property parameter, calculates cylindrical helical compression spring 4 and meets length during antivibrator early stage rigidity；(2) press Fig. 1 by described damping
Device assembles, and makes the first taper jaw 14- of the other end of each precompressed cable wire from corresponding cable wire self-locking tensioning anchorage 14
7th, pass in the centre bore of the second taper jaw 14-9 and hollow bolt 14-10；Then, (3) are the rope of the precompressed cable wire exposing
Head system is connected on traction stretching machine, and monitors that while drawing tensioning the decrement of cylindrical helical compression spring 4 (is as opened
Draw distance) to determine the distance between two pieces of floating platens；When the distance between two pieces of floating platens are equal to cylindrical helical
When compression spring 4 is compressed to the length meeting early stage rigidity, move forward the second self-centering locking fixture, adjust to turn simultaneously and open
Tight swivel nut 14-6 is so that plane bearing 14-2 is clamped tightly between described tensioning swivel nut 14-6 and tapered sleeve 14-8, and anti-torsion is pressed
Contracting spring 14-1 is compressed, and tension force produced by it promotes the first taper jaw 14-7 reach to clamp precompressed cable wire, twists thereafter
Dynamic described hollow bolt 14-10 precompressed cable wire will press from both sides extremely in the second taper jaw 14-9；Finally, remove traction tensioning
Machine, blocks unnecessary precompressed cable wire, you can cylindrical helical compression spring 4 is clamped between two pieces of floating platens all the time.
Referring to Fig. 1 and Fig. 7～11, in the work progress installing antivibrator or in routine maintenance procedure, if it find that certain
The tension force of precompressed cable wire is not enough, you can the tensioning swivel nut 14-6 turning in cable wire self-locking tensioning anchorage 14 is adjusted.
Referring to Fig. 1, two pieces of floating platens of tractive compress described cylindrical helical compression to described two groups of precompressed steel wire ropes respectively
Spring 4 to provide precompression for it, is the size of scalable precompression by the length adjusting steel wire rope, and then reaches default early
The purpose of its rigidity.When antivibrator is subject to the external load of axial direction, no matter external load is pressure or pulling force, as long as it is little
In above-mentioned precompression, cylindrical helical compression spring 4 will not continue to deform.When external load is more than described precompression,
If external load is pressure, described dynamic pressure plate 5 promotes described first floating platen 6 to continue compression cylindrical helical compression spring 4
Produce elastic deformation power consumption, if external load is pulling force, two pieces of floating platens of tractive are relative respectively for described two groups of precompressed steel wire ropes
Mobile compression cylindrical helical compression spring 4 produces elastic deformation power consumption.Because the dynamic loading no matter suffered by antivibrator be draw or
Pressure, the deformation of final generation is all the compression of same cylindrical helical compression spring 4, so the bidirectional elastic of antivibrator
Deformation is necessarily symmetrical.
Example 2
Referring to Figure 12～16, the adjustable coiled spring damper of early stage rigidity in this example can be used for building for one kind and erects
To the isolation mounting (also referred to as shock isolating pedestal) of shock insulation, this example is mainly had compared with example 1 to be distinguished as follows:
1st, as shock isolating pedestal, for ease of installing, in this example, eliminate set connection otic placode on the second end cap 3 in example 1,
And the second end cap 3 is first extended axially downwards from edge and extends radially outwards, and it is uniformly provided with link bolt hole in edge
16, using the second end cap 3 as the base of shock isolating pedestal, the length wherein extending axially downwards need to be more than described cable wire self-locking tensioning
The height of anchorage 14.The drive rod 5-1 of described drive member is the metal that an automatic plate press 5 upper surface extends to outside fairlead 1
Pipe, this metal tube is fixedly connected by sunk screw with dynamic pressure plate 5, and the end that described metal tube is located at outside fairlead 1 is provided with even
Connect supporting plate 17, and, this connection supporting plate 17 is again provided with link bolt hole 16.The first described end cap 2 from fairlead 1 upper end to
Interior extension is constituted.
2nd, described first group of precompressed cable wire 8 and second group of precompressed cable wire 9 are made up of three precompressed cable wires respectively；Described cable wire
The quantity of self-locking tensioning anchorage 14 is six；The distance away from fairlead 1 axis for the described first group of precompressed cable wire 8 is pre- equal to second group
The distance away from fairlead axis for the compressed steel rope 9.It is described that cable wire self-locking tensioning anchorage 14 outside described dynamic pressure plate 5-1 is each provided at composition
In the metal tube of drive rod 5-1, and the length of metal tube is more than the height of described cable wire self-locking tensioning anchorage 14.
This example other embodiment other than the above is same as Example 1.
Example 3
Referring to Figure 17～21, this example is mainly had compared with example 2 to be distinguished as follows:
Described first group of precompressed cable wire 8 and second group of precompressed cable wire 9 are made up of five precompressed cable wires respectively, and described cable wire is certainly
The quantity of lock tensioning anchorage 14 is ten.
This example other embodiment other than the above is same as Example 2.
Claims (4)
1. the adjustable coiled spring damper of a kind of early stage rigidity, this antivibrator includes fairlead, and one of this fairlead is provided with
First end cap, other end is provided with the second end cap；It is coaxially provided with cylindrical helical compression spring, a driving structure in described fairlead
Part is put in described fairlead by the outside of the first end cap, and this drive member includes dynamic pressure plate and drive rod, wherein said
Dynamic pressure plate is located at the head of cylindrical helical compression spring, and described drive rod is located on dynamic pressure plate and extends along fairlead axis
Fairlead；It is characterized in that,
It is additionally provided with backpressure device, this backpressure device includes two groups of pre- compressed steel that quantity is at least three respectively in described fairlead
Rope, two pieces of floating platens and quantity are the cable wire self-locking tensioning anchorage of described two groups of precompressed cable wire quantity sums, wherein,
Two pieces of described floating platens, one piece is located between described drive member and cylindrical helical compression spring, and another piece sets
Between the second end cap and cylindrical helical compression spring；
Described cable wire self-locking tensioning anchorage is by the first self-centering locking fixture, the second self-centering locking fixture, anti-torsion compression bullet
Spring and plane bearing composition, wherein:
A) the first self-centering locking fixture described in has a connecting seat, and the middle part of this connecting seat one end is provided with axially extended circle
Cylindrical end tangs, the internal of this boss is provided with, along axial line, the first taper jaw being made up of 3～5 claw pieces, and outer peripheral face is arranged with
Tensioning swivel nut；Wherein, the microcephaly of described first tapered clamp points to connecting seat, and the outer peripheral face of described tensioning swivel nut is regular hexagon；
B) the second self-centering locking fixture described in has a tapered sleeve, and the internal of this tapered sleeve is sequentially provided with by 3～5 claws along axis
Second taper jaw of piece composition and hollow bolt, wherein, the major part of the described head of hollow bolt and the second taper jaw
Relatively, the outer peripheral face of described tapered sleeve is regular hexagon；
C) plane bearing described in is by the ball retainer assembly end face relative with tapered sleeve with being respectively provided at tensioning swivel nut
Ring raceway is constituted, and wherein said ring raceway is matched with the ball in ball retainer assembly；
D) described second self-centering locking fixture is located at the outside of described tensioning swivel nut head, and the second taper jaw microcephaly and the
The sensing of one taper jaw microcephaly is consistent；Described plane bearing is located between described tensioning swivel nut and tapered sleeve, described anti-torsion
Compression spring is located in the endoporus of tensioning swivel nut；Through anti-torsion compression spring between precompressed cable wire is by the calvus of the first taper jaw
After passing and the calvus of the centre bore of plane bearing and the second taper jaw between, under the effect of precompressed cable tension, described
Anti- turn round compression spring one acts on the first taper jaw, and other end acts on tapered sleeve；
Two groups of described precompressed cable wires are symmetrically distributed in described cylindrical helical pressure rotating around the axis of fairlead with linear state
The center in the hole of contracting spring, and, one of one group of precompressed cable wire is separately fixed on the floating platen adjacent with drive member, separately
One is each passed through the floating platen adjacent with the second end cap and is anchored on the second end cap by described cable wire self-locking tensioning anchorage；
One of another group of precompressed cable wire is separately fixed on the floating platen adjacent with the second end cap, and other end is each passed through and drives
The adjacent floating platen of component is anchored in drive member by described cable wire self-locking tensioning anchorage；
It is being respectively equipped with the through hole through this precompressed cable wire through the position of described precompressed cable wire, this leads on described floating platen
The aperture in hole is more than the diameter of worn precompressed cable wire；
Two groups of precompressed cable wires of tensioning, make the distance between two pieces of floating platens pre- equal to being compressed to cylindrical helical compression spring
If the length of early stage rigidity.
2. a kind of adjustable coiled spring damper of early stage rigidity according to claim 1 it is characterised in that this early stage just
Spending adjustable coiled spring damper is the antivibrator reinforced for building structure aseismatic.
3. a kind of adjustable coiled spring damper of early stage rigidity according to claim 1 it is characterised in that this early stage just
Spend the vertical earthquake isolating equipment that adjustable coiled spring damper is for Antiseismic building.
4. the adjustable coiled spring damper of a kind of early stage rigidity according to claim 1,2 or 3 is it is characterised in that institute
The precompressed cable wire stated is steel wire rope or prestressing force steel hinge line.
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| CN201610906757.6A CN106351353B (en) | 2016-10-17 | 2016-10-17 | Early rigidity-adjustable spiral spring damper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610906757.6A CN106351353B (en) | 2016-10-17 | 2016-10-17 | Early rigidity-adjustable spiral spring damper |
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| CN106351353A true CN106351353A (en) | 2017-01-25 |
| CN106351353B CN106351353B (en) | 2020-11-10 |
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| CN201610906757.6A Active CN106351353B (en) | 2016-10-17 | 2016-10-17 | Early rigidity-adjustable spiral spring damper |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060454A (en) * | 2017-02-21 | 2017-08-18 | 安徽工业大学 | Rod axial laminated rubber steel plate seismic isolation device |
| CN108104563A (en) * | 2017-05-17 | 2018-06-01 | 大连大学 | The self-resetting method of anti-buckling support with double anti-unstability devices of torsion |
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| US6098970A (en) * | 1997-09-22 | 2000-08-08 | Winston Lowe | Spring breakage safety system |
| CN201136517Y (en) * | 2007-12-18 | 2008-10-22 | 中国北车集团四方车辆研究所 | Bidirectional buffer for pulling-pressing conversion of elastic body |
| US20090191007A1 (en) * | 2008-01-29 | 2009-07-30 | Seegmiller Ben L | Resin Mixing and Cable Tensioning Device and Assembly for Cable Bolts |
| CN103343593A (en) * | 2013-07-25 | 2013-10-09 | 长沙理工大学 | Prestressed tendon anchorage device capable of being freely regulated and controlled at high precision |
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| CN87100223A (en) * | 1987-02-07 | 1987-08-12 | 华东建筑设计院 | Prestressed damping spring vibration-reducing apparatus |
| CN2095901U (en) * | 1991-04-23 | 1992-02-12 | 唐山工程技术学院 | Carbon steel wire anchor |
| US6098970A (en) * | 1997-09-22 | 2000-08-08 | Winston Lowe | Spring breakage safety system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107060454A (en) * | 2017-02-21 | 2017-08-18 | 安徽工业大学 | Rod axial laminated rubber steel plate seismic isolation device |
| CN108104563A (en) * | 2017-05-17 | 2018-06-01 | 大连大学 | The self-resetting method of anti-buckling support with double anti-unstability devices of torsion |
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| CN106351353B (en) | 2020-11-10 |
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