CN106245803A - A kind of rubber cushion assembly of scalable rigidity in early days - Google Patents

A kind of rubber cushion assembly of scalable rigidity in early days Download PDF

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Publication number
CN106245803A
CN106245803A CN201610902555.4A CN201610902555A CN106245803A CN 106245803 A CN106245803 A CN 106245803A CN 201610902555 A CN201610902555 A CN 201610902555A CN 106245803 A CN106245803 A CN 106245803A
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China
Prior art keywords
cable wire
fairlead
precompressed
cap
self
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Granted
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CN201610902555.4A
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Chinese (zh)
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CN106245803B (en
Inventor
沈珊
胡济福
胡济全
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Anhui Xinze Technology Co Ltd
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Anhui Xinze Technology Co Ltd
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Priority to CN201610902555.4A priority Critical patent/CN106245803B/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92Protection against other undesired influences or dangers
    • E04B1/98Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00Vibration-dampers; Shock-absorbers
    • F16F7/10Vibration-dampers; Shock-absorbers using inertia effect
    • F16F7/104Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
    • F16F7/108Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted on plastics springs

Abstract

The invention discloses the rubber cushion assembly of a kind of scalable rigidity in early days, it is characterized in that, it is additionally provided with backpressure device in described fairlead, this backpressure device includes quantity two groups of precompressed cable wires of at least three respectively and two pieces of floating platens, wherein, two groups of described precompressed cable wires are distributed in the described annular space of distribution with linear state respectively, and of one group of precompressed cable wire is separately fixed on the floating platen adjacent with the second end cap, other end is anchored in drive member by cable wire self-locking tensioning anchorage respectively through the floating platen adjacent with drive member, one of another group precompressed cable wire is separately fixed on the floating platen adjacent with drive member, other end is anchored on the second end cap by cable wire self-locking tensioning anchorage respectively through the floating platen adjacent with the second end cap;Two groups of precompressed cable wires described in tensioning, make described rubber vibration isolation cushion be clamped in all the time between two pieces of floating platens.

Description

A kind of rubber cushion assembly of scalable rigidity in early days
Technical field
The present invention relates to damping device, particularly relate to use the antivibrator of rubber vibration isolation cushion.
Background technology
Rubber vibration isolation cushion is a kind of earthquake isolating equipment using rubber as deformation element, owing to rubber vibration isolation cushion has cost Advantage low, that bearing capacity is strong and the natural frequency of vibration is low is widely used in the heavy duty occasions such as building and bridge.
The bearing capacity of rubber vibration isolation cushion is mainly reflected in above anti-pressure ability by force, and resistance to tension is the most poor, relatively The high rubber vibration isolation cushion under load effect that draws is easily torn, and the defect weak just because of resistance to tension causes rubber vibration isolation cushion Application in technical field of isolation is subject to certain restrictions.
The application for a patent for invention of Publication No. CN101769015A discloses one " laminated rubber damping bearing tension machine Structure ", this stretch-proof organization includes upper connecting base, lower connecting base and is clamped in the laminated rubber damping bearing being vertically connected with between seat, Described upper connecting base is provided with the upper counter-force arm of force of " L " shape, and lower connecting base is provided with the lower counter-force arm of force of inverted "L" shaped, described " L " It is provided with by the laminated rubber of both reverse clamp between the horizontal horizontal edge of the upper counter-force arm of force of shape and the lower counter-force arm of force of inverted "L" shaped Shock isolating pedestal;When described tensile structure pressurized, pressure is born by being clamped in the shock isolating pedestal being vertically connected with between seat;When described During tensile structure tension, pulling force is converted into by the upper counter-force arm of force of described " L " shape and the lower counter-force arm of force of inverted "L" shaped and presss from both sides direction Hold the pressure of shock isolating pedestal between;Although do so makes structure be provided with resistance to tension, but there is also following shortcoming: (1) it is respectively subjected to two-way load, two laminated rubber damping bearings of minimum needs by different shock isolating pedestals, not only becomes Ben Genggao, and increase the volume of anti-seismic structure;(2) necessarily have a shock isolating pedestal when a shock isolating pedestal pressurized to be subject to Drawing, the shock isolating pedestal of tension equally exists tear risk;(3) it is difficult to ensure that the characteristic of two shock isolating pedestals is identical in technique, because of This Impact direction difference isolating affection i.e. difference.
People pursue a kind of " resisting " and " consumption " phase for the design of the anti-seismic structure of anti-seismic structure especially high-rise In conjunction with comprehensive anti-seismic performance, i.e. shake and under the effect of small earthquake, anti-seismic structure can provide extra for building main body at weak wind Additional stiffness resist the effect of external load, keep the integrity of agent structure, it is to avoid internal injury occurs in main structure body; Under high wind shakes the effect with violent earthquake, anti-seismic structure then starts yield deformation, is made by the damping of the antivibrator in anti-seismic structure Be used for dissipating external energy, makes main structure body shake at high wind and be unlikely to be seriously damaged in violent earthquake and even collapses.This just wants Ask and be applied to anti-seismic structure and can keep rigidity under the effect of outside weak load, do not deform;The effect of strong load in outside Under then can deform power consumption.Existing rubber vibration isolation cushion is not equipped with a feature that.
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.Owing to the deformation element of rubber vibration isolation cushion is rubber, above-mentioned three kinds change spring The effectively means of active length are simply not proposed to rubber vibration isolation cushion;The most this form resistance amortisseur not only spring effective Active length substantially shortens, and can only compress passive energy dissipation, it is impossible to stretching passive energy dissipation.
Summary of the invention
The technical problem to be solved is to provide the rubber cushion assembly of a kind of scalable rigidity in early days, this antivibrator Not only scalable rigidity in early days, and only with a rubber vibration isolation cushion, 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 rubber cushion assembly of a kind of scalable rigidity in early days, this antivibrator includes fairlead, and one of this fairlead is provided with First end cap, other end is provided with the second end cap;Being coaxially provided with spring in described fairlead, a drive member is by the first end cap Outside puts in described fairlead, and it is described that this drive member includes that dynamic pressure plate and drive rod, wherein said dynamic pressure plate are 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 rubber vibration isolation cushion, and the external diameter of this rubber vibration isolation cushion is less than the internal diameter of fairlead, shape therebetween Become an annular space;
Being additionally provided with backpressure device in described fairlead, this backpressure device includes that quantity two groups of at least three respectively are 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 sums, wherein,
Described floating platen one piece is located between described dynamic pressure plate and rubber vibration isolation cushion, another block be located at the second end cap with Between rubber vibration isolation cushion;
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 connection seat one end is provided with axially extending Cylindrical boss, the internal of this boss is provided with the first taper jaw being made up of 3~5 claw sheets, periphery surface cover along axial line It is provided with tensioning swivel nut;Wherein, the microcephaly of described first tapered clamp points to connection seat, and the outer peripheral face of described tensioning swivel nut is positive six limits 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 and hollow bolt of claw sheet composition, wherein, the head of described hollow bolt and the second taper jaw Major part is relative, and 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 On ring raceway constitute, wherein said ring raceway matches with the ball in ball retainer assembly;
D) described second self-centering locking fixture is positioned at the outside of described tensioning swivel nut head, and the second taper jaw microcephaly Sensing with the first taper jaw microcephaly is consistent;Described plane bearing is between described tensioning swivel nut and tapered sleeve, described Anti-torsion compression spring is located in the endoporus of tensioning swivel nut;Pressure is turned round through anti-between precompressed steel wire rope is by the calvus of the first taper jaw After passing between the calvus of contracting spring and the centre bore of plane bearing and the second taper jaw, in precompressed steel wire rope tension effect Under, one of described anti-torsion compression spring acts on the first taper jaw, and other end acts on tapered sleeve;
Two groups of described precompressed cable wires are symmetrically distributed in the described annular of distribution rotating around the axis of fairlead with linear state In space, and of one group of precompressed cable wire is separately fixed on the floating platen adjacent with the second end cap, other end through with The floating platen that dynamic pressure plate is adjacent is anchored on dynamic pressure plate by a cable wire self-locking tensioning anchorage respectively, the one of another group precompressed cable wire Head is separately fixed on the floating platen adjacent with dynamic pressure plate, other end through the floating platen adjacent with the second end cap respectively by One cable wire self-locking tensioning anchorage is anchored on the second end cap;
On described floating platen, wear the logical of this precompressed cable wire being respectively equipped with through the position of described precompressed cable wire Hole, the aperture of this through hole is more than the diameter of worn precompressed cable wire;
Dynamic cooperation it is respectively adopted between described fairlead and two pieces of floating platens;
Two groups of precompressed cable wires of tensioning, make the distance between two pieces of floating platens equal to being compressed to rubber vibration insulating pad preset early The length of phase rigidity.
In such scheme, described precompressed cable wire can be steel wire rope, it is also possible to be prestressing force steel hinge line.
The operation principle of above-mentioned antivibrator is as follows: when dynamic loading is along the axis relativity of fairlead, described driving Component compresses downwards rubber vibration isolation cushion;When dynamic loading is along the opposing effect of axis of fairlead, two groups of described precompressed cable wires draw Dynamic two pieces of floating platens move towards compressing rubber isolation cushion.As can be seen here, axial dynamic loading is the most relative or opposing effect On antivibrator, can compressing rubber isolation cushion so that it is occur elastic deformation to consume energy.
Hole from the through hole on above-mentioned operation principle, the precompressed cable wire described in work process and described floating platen Wall can not produce friction, otherwise interferes with moving up and down of floating platen, and on the most described floating platen, set through hole is straight Footpath is more how many greatly than the diameter of described precompressed cable wire, should be advisable not disturb and to affect moving up and down of floating platen.
The rubber cushion assembly of scalable of the present invention rigidity in early days, wherein said precompressed cable wire two can use anchor Gu, it is possible to use similar lifting bolt system to connect fixing.
For preventing described rubber vibration isolation cushion two from sliding on described floating platen, an improvement project of the present invention is: Being respectively equipped with a locating ring on the surface that described two pieces of floating platens are relative, described rubber vibration isolation cushion two is embedded in described respectively In locating ring.
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 a rubber vibration isolation cushion that antivibrator no matter suffered axial force just can be made to be forward or reverse, described Rubber vibration isolation cushion all can produce elastic compression deformation and consume energy, both saved a rubber vibration isolation cushion, the most greatly shortened The length of antivibrator.
(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 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, 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 cable wire, but described rubber vibration isolation cushion is effective Active length is constant, will not change the original characterisitic parameter of rubber vibration isolation cushion.
(5) cable wire self-locking tensioning anchorage is used to be fixed on the other end of precompressed cable wire on dynamic pressure plate or the second end cap, one The length of precompressed cable wire can be adjusted, two be utilize anti-torsion 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.
Accompanying drawing explanation
Fig. 1~8 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 C-C sectional view of Fig. 1, and Fig. 5 is for looking up Figure, Fig. 6 is the enlarged drawing of local I in Fig. 1, and Fig. 7 is the enlarged drawing of local II in Fig. 1, and Fig. 8 is the enlarged drawing of local III in Fig. 2.
Fig. 9~13 is Fig. 1~the structural representation of cable wire self-locking tensioning anchorage in 8 illustrated embodiments, and wherein, Fig. 9 is main View (section view), in figure, dotted line represents precompressed cable wire, and Figure 10 is upward view, and Figure 11 is the D D profile of Fig. 9, and Figure 12 is Fig. 9 E E profile, Figure 13 is the F F sectional view of Fig. 9.
Figure 14~15 is the structural representation of second specific embodiment of antivibrator of the present invention, and wherein, Figure 14 is main View (section view), Figure 15 is the G-G sectional view of Figure 14, and Figure 16 is the H-H sectional view of Figure 14, and Figure 17 is the I-I sectional view of Figure 14, Figure 18 is upward view.
Figure 19~23 is the structural representation of 3rd specific embodiment of antivibrator of the present invention, and wherein, Figure 19 is main View (section view), Figure 20 is the J-J sectional view of Figure 19, and Figure 21 is the K-K sectional view of Figure 19, and Figure 22 is the L-L sectional view of Figure 19, Figure 23 is upward view.
Detailed description of the invention
Example 1
Seeing the rubber cushion assembly of scalable in Fig. 1, this example rigidity in early days is that one can be used for building structure aseismatic and adds Solid energy-dissipating device, it includes fairlead 1, is respectively provided at first end cap 2 and second end cap 3 at fairlead 1 two, wherein, institute State the first end cap 2 with and the second end cap 3 is fixing with the two ends of fairlead respectively by screw is connected.Edge in described fairlead 1 Being axially arranged with a rubber vibration isolation cushion 4, a drive member is pressed in described rubber in being put in described fairlead 1 by the first end cap 2 center On glue isolation cushion 4;Wherein, described drive member is from being positioned at rubber vibration insulating pad 4 upper end and the dynamic pressure plate that coordinate dynamic with fairlead 1 5 and extended upward the drive rod 5-1 of fairlead 1 by dynamic pressure plate 5 upper surface and constitute, described drive rod 5-1 is positioned at outside fairlead 1 End be provided with the connection ring 5-2 of band hinge hole 14, the mode pair that described connection ring 5-2 is threaded connection with drive rod 5-1 It is connected together.
See Fig. 1~3 and combine in Fig. 6, this example rubber vibration isolation cushion 4 by Elastic Cylindrical body and Elastic Cylindrical body two The end plate 4-1 composition that head is attached thereto, wherein, Elastic Cylindrical body is the most folded by three layers of rubber layer 4-2 and two layers of thin steel plate 4-3 Merge high temperature vulcanized being formed by connecting.The external diameter of described rubber vibration isolation cushion 4, less than the internal diameter of fairlead 1, forms one between Annular space.
Seeing Fig. 1 and 5, the outside of described second end cap 3 is provided with two the connection otic placodes 13, Mei Yilian being connected therewith Ear connecting plate 13 is provided with hinge hole 14.
See Fig. 1~8, in described fairlead 1, be provided with backpressure device, this backpressure device include two groups of precompressed cable wires, two Block floating platen and eight cable wire self-locking tensioning anchorages 16;Wherein, two groups of described precompressed cable wires are by three precompressed cable wire groups The first group of precompressed cable wire 8 become and the second group of precompressed cable wire 9 being made up of five precompressed cable wires;Two pieces of described floating platens are The first floating platen 6 of being located between the dynamic pressure plate 5 of described drive member and rubber vibration isolation cushion 4 and be located at the second end cap 3 and rubber The second floating platen 7 between glue isolation cushion 4, these two pieces of floating platens are dynamic with the inwall of fairlead 1 respectively to be coordinated.
Seeing Fig. 9~13, each cable wire self-locking tensioning anchorage 16 is by the first self-centering locking fixture, the second self-centering locking Fixture, anti-torsion compression spring 16-1 and plane bearing 16-2 composition, wherein:
The first described self-centering locking fixture has a connecting seat 16-3, and the edge of this connection seat 16-3 is provided with installing hole 16-12, the middle part of lower end is provided with axially extended cylindrical boss 16-4, and the internal of this boss 16-4 is provided with first along axial line Taper hole 16-5, is provided with the first taper jaw 16-7 being made up of 3 claw sheets in this taper hole, the outer peripheral face of described boss 16-4 is sheathed There is tensioning swivel nut 16-6, the most threaded;Wherein, the microcephaly of described first tapered clamp 16-7 points to connection seat 16-3, The outer peripheral face of described tensioning swivel nut 16-6 is regular hexagon;
The second described self-centering locking fixture has a tapered sleeve 16-8, internal being sequentially provided with along axis of this tapered sleeve 16-8 One section of second taper hole 16-13 and one section of screwed hole;Wherein, it is provided with, in the second taper hole 16-13, the second taper being made up of 3 claw sheets Jaw 16-9, is provided with head and the second taper jaw 16-of hollow bolt 16-10, hollow bolt 16-10 in described screwed hole The major part of 9 is relative, and the outer peripheral face of described tapered sleeve 16-8 is regular hexagon;
Described plane bearing 16-2 is by ball retainer assembly 16-11 and is respectively provided at tensioning swivel nut 16-6 and tapered sleeve Ring raceway on the end face that 16-8 is relative is constituted, in wherein said ring raceway and ball retainer assembly 16-11 Ball matches;
Described second self-centering locking fixture is positioned at the outside of tensioning swivel nut 16-6 head, and the second taper jaw 16-9 Microcephaly is consistent with the sensing of the first taper jaw 16-7 microcephaly;Described plane bearing 16-2 be positioned at described tensioning swivel nut 16-6 with Between tapered sleeve 16-8, described anti-torsion compression spring 16-1 is located in the endoporus of tensioning swivel nut 16-6.When precompressed cable wire is by first Through centre bore and second tapered clamp of anti-torsion compression spring 16-1 and plane bearing 16-2 between the calvus of taper jaw 16-7 After passing between the calvus of pawl 16-9, under precompressed cable tension effect, one of described anti-torsion compression spring 16-1 acts on On first taper jaw 16-7, other end acts on tapered sleeve 16-8.
Seeing Fig. 1~8, described two groups of precompressed cable wires are distributed in described with linear state respectively around fairlead 1 axisymmetrical In annular space, each precompressed cable wire is each parallel to fairlead 1 axis, and first group of precompressed cable wire 8 is away from fairlead axis Distance is equal to second group of precompressed cable wire 9 distance away from fairlead axis;Wherein, the following of described first group of precompressed cable wire 8 is respectively Being fixed on the second floating platen 7 by lifting bolt 12, top is each passed through the first floating platen 6 by a cable wire self-locking tensioning Anchorage 16 is anchored on described dynamic pressure plate 5;The top of described second group of precompressed cable wire 9 is fixed on first by lifting bolt 12 respectively On floating platen 6, following is anchored on the second end cap 3 through the second floating platen 7 by a cable wire self-locking tensioning anchorage 16.Institute State the position passed at each first group of precompressed cable wire 8 on the first floating platen 6 and be provided with for its first through hole 10 passed through, should The aperture of the first through hole 10 is more than the diameter of described first group of precompressed cable wire 8;On described dynamic pressure plate 5, at each first group Precompressed cable wire 8 is equipped with the first anchor hole 5-3 anchoring this first group of precompressed steel wire rope 8 through position;Described second floats presses The position passed at each second group of precompressed cable wire 9 on plate 7 is provided with for its second through hole 11 passed through, this second through hole 11 Aperture is more than the diameter of described second group of precompressed cable wire 9;On the second described end cap 3, wear at each second group of precompressed cable wire 9 Cross position and be equipped with the second anchor hole 3-1 of second group of precompressed steel wire rope 9 of anchoring.One of described precompressed cable wire by suspension ring spiral shell The method that nail is fixed in respective members is: be fixed on corresponding component by lifting bolt 12, then by the one of precompressed cable wire Head system is connected on the suspension ring of lifting bolt, and fixing dead by rope cramp (being not drawn in figure).
See Fig. 1, the connection seat 16-3 of described cable wire self-locking tensioning anchorage 16 and be 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, it is also possible to be prestressing force steel hinge line, when being embodied as, and can Choose the most voluntarily.
Seeing Fig. 1~3 and Fig. 6, the surface that described first floating platen 6 is relative with the second floating platen 7 is equipped with internal diameter The locating ring 15 matched with the end plate 4-1 external diameter of rubber vibration isolation cushion 4, the end plate 4-1 at described rubber vibration isolation cushion 4 two is the most embedding In locating ring 15 on the first floating platen 6 and the second floating platen 7.
See Fig. 1~8 and combine Fig. 9~13, in order to realize the purpose of predeterminable early stage rigidity, above-mentioned two groups of precompressed cable wires Installation and tensioning method as described below: early stage rigidity that (1) first presets according to antivibrator and the characteristic ginseng of rubber vibration isolation cushion 4 Number, calculates length when rubber vibration insulating pad 4 meets antivibrator in early days rigidity;(2) by Fig. 1, described antivibrator is assembled, make The other end of each precompressed cable wire is from the first taper jaw 16-7 of corresponding cable wire self-locking tensioning anchorage 16, the second tapered clamp The centre bore of pawl 16-9 and hollow bolt 16-10 passes;Then, (3) are connected on traction the fag end system of the precompressed cable wire exposed On stretching machine, and while traction stretch-draw, monitor the decrement (being stretch-draw distance) of rubber vibration insulating pad 4, in order to determine two pieces Distance between floating platen;Distance between two pieces of floating platens is equal to being compressed to rubber vibration insulating pad 4 meet the most just During the length spent, moving forward the second self-centering locking fixture, regulation simultaneously turns tensioning swivel nut 16-6 so that plane bearing 16-2 is clamped tightly between described tensioning swivel nut 16-6 and tapered sleeve 16-8, and anti-torsion compression spring 16-1 is compressed, and it is produced Raw tension force promotes the first taper jaw 16-7 reach to be clamped by precompressed cable wire, and turning described hollow bolt 16-10 thereafter will It is positioned at the second taper jaw 16-9 precompressed cable wire folder dead;Finally, remove traction stretching machine, block unnecessary precompressed cable wire, i.e. Rubber vibration isolation cushion 4 can be clamped between two pieces of floating platens all the time.
See Fig. 1 and Fig. 9~13, 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, and the tensioning swivel nut 16-6 that can turn in cable wire self-locking tensioning anchorage 16 is adjusted.
Seeing Fig. 1, described two groups of precompressed cable wires two pieces of floating platens of tractive respectively compress described rubber vibration isolation cushion 4 to be come for it Precompression is provided, changes the length i.e. size of scalable precompression of precompressed cable wire, and then reach to preset the purpose of early its rigidity. When antivibrator is by axial external load, no matter external load is pressure or pulling force, as long as it is less than above-mentioned precompression, Rubber vibration isolation cushion 4 will not continue to deformation.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 compressing rubber isolation cushion 4 and produces elastic deformation power consumption, if external load is Pulling force, described two groups of precompressed cable wires two pieces of floating platen relative movement compressing rubber isolation cushions 4 of tractive respectively produce elastic deformation Power consumption.Because the dynamic loading no matter suffered by antivibrator is for drawing or pressing, the final deformation produced is all same rubber vibration isolation cushion 4 Compression, so the bidirectional elastic deformation necessarily symmetry of antivibrator.
Example 2
Seeing Figure 14~18, this example and example 1 have to be distinguished as follows:
Described first group of precompressed cable wire 8 and second group of precompressed cable wire 9 are formed by three cable wires.Described cable wire self-locking tensioning The quantity of anchorage 16 is six.
This example implementation other than the above is same as Example 1.
Example 3
Seeing Figure 19~23, it is vertical that the rubber cushion assembly of scalable in this example rigidity in early days is that one can be used for building The isolation mounting (also referred to as shock isolating pedestal) of shock insulation, this example mainly has compared with example 2 to be distinguished as follows:
1, as shock isolating pedestal, for ease of installing, this example eliminates on the second end cap 3 set connection otic placode, and incite somebody to action From edge, first extension axially downwards extends radially outwards second end cap 3 again, and is uniformly provided with link bolt hole 18 in edge, with Second end cap 3 need to be more than described cable wire self-locking tensioning anchorage as the base of shock isolating pedestal, the length extended the most axially downwards The height of 16.The drive rod 5-1 of described drive member be one with dynamic pressure plate 5 upper surface be bolted to connection metal Pipe, the end that this metal tube is positioned at outside fairlead 1 is provided with connection supporting plate 17, and, this connection supporting plate 17 is again provided with connect spiral shell Keyhole 18.
2, the Elastic Cylindrical body of described rubber vibration isolation cushion 4 is made up of the rubber layer that a monoblock is cylindrical;Described first group Precompressed cable wire 8 and second group of precompressed cable wire 9 are made up of five cable wires respectively;The quantity of cable wire self-locking tensioning anchorage 16 is ten.
This example other embodiment other than the above is same as Example 2.

Claims (5)

1. a rubber cushion assembly for scalable in early days rigidity, this antivibrator includes fairlead, and of this fairlead is provided with the One end cap, other end is provided with the second end cap;It is coaxially provided with spring, outside a drive member is by the first end cap in described fairlead Side puts in described fairlead, and this drive member includes that dynamic pressure plate and drive rod, wherein said dynamic pressure plate are positioned at described bullet 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 rubber vibration isolation cushion, and the external diameter of this rubber vibration isolation cushion, less than the internal diameter of fairlead, forms therebetween one Annular space;
Being additionally provided with backpressure device in described fairlead, this backpressure device includes that quantity is at least two groups of pre-compressed steel of three respectively Rope, two pieces of floating platens and quantity are the cable wire self-locking tensioning anchorage of described two groups of precompressed cable wire sums, wherein,
Described floating platen one piece is located between described dynamic pressure plate and rubber vibration isolation cushion, and another block is located at the second end cap and rubber Between isolation cushion;
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 connection seat one end is provided with axially extended circle Cylindrical end tangs, the internal of this boss is provided with the first taper jaw being made up of 3~5 claw sheets along axial line, and outer peripheral face is arranged with Tensioning swivel nut;Wherein, the microcephaly of described first tapered clamp points to connection 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 and hollow bolt of sheet composition, wherein, the head of described hollow bolt and the major part of 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 matches with the ball in ball retainer assembly;
D) described second self-centering locking fixture is positioned 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 between described tensioning swivel nut and tapered sleeve, described anti-torsion Compression spring is located in the endoporus of tensioning swivel nut;Compression bullet is turned round through anti-between precompressed steel wire rope is by the calvus of the first taper jaw After passing between the calvus of spring and the centre bore of plane bearing and the second taper jaw, under precompressed steel wire rope tension effect, One of described anti-torsion compression spring acts on the first taper jaw, and other end acts on tapered sleeve;
Two groups of described precompressed cable wires are symmetrically distributed in the described annular space of distribution rotating around the axis of fairlead with linear state In, and of one group of precompressed cable wire is separately fixed on the floating platen adjacent with the second end cap, other end through and dynamic pressure The floating platen that plate is adjacent is anchored on dynamic pressure plate by a cable wire self-locking tensioning anchorage respectively, point of another group precompressed cable wire Not being fixed on the floating platen adjacent with dynamic pressure plate, other end passes the floating platen adjacent with the second end cap respectively by a steel Suo Zisuo tensioning anchorage is anchored on the second end cap;
On described floating platen, it is being respectively equipped with the through hole wearing this precompressed cable wire through the position of described precompressed cable wire, should The aperture of through hole is more than the diameter of worn precompressed cable wire;
Dynamic cooperation it is respectively adopted between described fairlead and two pieces of floating platens;
Two groups of precompressed cable wires of tensioning, make the distance between two pieces of floating platens equal to being compressed to rubber vibration insulating pad preset the most just The length of degree.
The rubber cushion assembly of a kind of scalable the most according to claim 1 rigidity in early days, it is characterised in that this scalable is early The rubber cushion assembly of phase rigidity is the antivibrator reinforced for building structure aseismatic.
The rubber cushion assembly of a kind of scalable the most according to claim 1 rigidity in early days, it is characterised in that this scalable is early The rubber cushion assembly of phase rigidity is the vertical earthquake isolating equipment for Antiseismic building.
4. according to the rubber cushion assembly of the rigidity in early days of a kind of scalable described in claim 1,2 or 3, it is characterised in that described Precompressed cable wire be steel wire rope or prestressing force steel hinge line.
The rubber cushion assembly of a kind of scalable the most according to claim 4 rigidity in early days, it is characterised in that described two pieces are floated Being respectively equipped with a locating ring on the surface that dynamic pressure plate is relative, two of described rubber vibration isolation cushion is embedded in described locating ring respectively In.
CN201610902555.4A 2016-10-17 2016-10-17 Rubber damper capable of adjusting early rigidity Active CN106245803B (en)

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Publication number Priority date Publication date Assignee Title
CN107763128A (en) * 2017-09-29 2018-03-06 浙江大学 A kind of suspending steel wire rope vibration isolation sound arrester
CN110374010A (en) * 2019-07-22 2019-10-25 中铁大桥局集团有限公司 A kind of constructing device and its application method of the interim vibration damping of suspension cable
CN111946772A (en) * 2020-08-24 2020-11-17 李晓艳 New energy automobile bumper shock absorber

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CN103343593A (en) * 2013-07-25 2013-10-09 长沙理工大学 Prestressed-tendon anchor with high accuracy and free adjustment and control functions
CN103469896A (en) * 2013-09-27 2013-12-25 无锡圣丰建筑新材料有限公司 Anti-drawing shock-isolating rubber support

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JPS6455446A (en) * 1987-08-24 1989-03-02 Hitachi Plant Eng & Constr Co Vibration eliminating damper
JPH10238164A (en) * 1996-12-26 1998-09-08 Ohbayashi Corp Base isolation device
CN2837412Y (en) * 2005-06-09 2006-11-15 上海环星减振器有限公司 Displacement-compensation vibration-isolation buffer
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107763128A (en) * 2017-09-29 2018-03-06 浙江大学 A kind of suspending steel wire rope vibration isolation sound arrester
CN110374010A (en) * 2019-07-22 2019-10-25 中铁大桥局集团有限公司 A kind of constructing device and its application method of the interim vibration damping of suspension cable
CN110374010B (en) * 2019-07-22 2021-09-03 中铁大桥局集团有限公司 Construction device for temporary vibration reduction of stay cable and use method thereof
CN111946772A (en) * 2020-08-24 2020-11-17 李晓艳 New energy automobile bumper shock absorber

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