CN106499243A - A kind of three-dimensional shock isolation support of adjustable vertical to early stage rigidity - Google Patents
A kind of three-dimensional shock isolation support of adjustable vertical to early stage rigidity Download PDFInfo
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- CN106499243A CN106499243A CN201610906360.7A CN201610906360A CN106499243A CN 106499243 A CN106499243 A CN 106499243A CN 201610906360 A CN201610906360 A CN 201610906360A CN 106499243 A CN106499243 A CN 106499243A
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- cable wire
- precompressed cable
- tensioning
- bearing
- precompressed
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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
Abstract
The invention discloses a kind of three-dimensional shock isolation support of adjustable vertical to early stage rigidity, the three-dimensional shock isolation support includes the laminated rubber damping bearing being sequentially connected in series up and down and vertical earthquake isolating bearing；It is characterized in that, backpressure device is additionally provided with the fairlead of the vertical earthquake isolating bearing, the backpressure device includes two groups of precompressed cable wires and two pieces of floating platens, wherein, two groups of described precompressed cable wires are distributed between rubber air spring and fairlead, and, of one group of precompressed cable wire is separately fixed on the floating platen adjacent with pressing plate is driven, and other end is each passed through the floating platen adjacent with base and is anchored on base by cable wire self-locking tensioning anchorage；One of another group of precompressed cable wire is separately fixed on the floating platen adjacent with base, and other end is each passed through the floating platen adjacent with pressing plate is driven and is anchored on driving pressing plate by cable wire self-locking tensioning anchorage；By two groups of described precompressed cable wire tensionings, rubber air spring is made to be clamped between two pieces of floating platens all the time.
Description
Technical field
The present invention relates to a kind of building vibration proof (or vibrations) device, and in particular to a kind of by laminated steel and rubber pillow with perpendicular
Three-dimensional isolation device to shock isolating pedestal series connection.
Background technology
Earthquake isolating equipment is the shockproof isolating device being located between building and basis.The earthquake isolating equipment of early stage is mainly by rubber
The two-dimentional shock isolating pedestal (laminated rubber damping bearing) being superimposed to form with sheet metal, can only isolate the level point of seismic wave
Amount.With the raising that people are recognized to earthquake Multi-attributes, three-dimensional isolation device is gradually paid attention to by this area researcher.Most
Common three-dimensional isolation device is exactly to be in series with existing vertical earthquake isolating bearing by laminated rubber damping bearing.
The application for a patent for invention of 102409777 A of Publication No. CN discloses a kind of structure three-dimensional shock insulation and antidumping dress
Put, the main body mechanism of the device is in series with spring shock-proof bearing 15 by laminated rubber damping bearing 14, the agent structure
Upper and lower side be respectively arranged with upper junction plate 1 and lower connecting plate 18, it is characterised in that：The upper junction plate 1 and lower connecting plate 18
Between be provided with and misplace uniform tensile steel wire rope 16 around agent structure surrounding, the tensile steel wire rope 16 pole in the horizontal direction
Horizontal shear elastic deformation amount of the limit deflection more than main body mechanism.Described in the patent application, although scheme can improve three-dimensional isolation
The tensile strength of device, to resist the produced huge pulling force that waves or even topple of earthquake middle-high building thing, but still deposits
In following deficiency：1st, described spring shock-proof bearing can only compress energy-dissipating and shock-absorbing, it is impossible to stretch energy-dissipating and shock-absorbing；2nd, described bullet
Spring shock isolating pedestal can not preset early stage rigidity, and being not easy to default earthquake intensity reduces shock insulation cost.
The application for a patent for invention of Publication No. CN1932324A discloses a kind of " adjustable disc-shape spring mechanical damping resistance
Buddhist nun's device ", the antivibrator include shell, the load connecting rod for being located inside the shell and two groups of disk springs, described, the load connection
The regulation gear being connected therewith is provided with the middle part of bar, is respectively equipped with and connects with load in the load connecting rod of the regulation gear both sides
Left-handed nut and right-handed nut that extension bar screw thread coordinates, two groups of disk springs are respectively provided at the left-handed nut and dextrorotation spiral shell
Female outside, and be clamped between the left-handed nut or right-handed nut and the shrouding of outer casing end respectively.Switch is only needed to carry
Regulation gear in lotus connecting rod, makes the left-handed nut and right-handed nut mutually draw close or away from the dish-shaped bullet of i.e. two groups of scalable
The pretightning force of spring so as to the damped coefficient of damping adjusting device, to meet the use demand of different frequency and various amplitude.But should
Invention still has following not enough：1st, the load connecting rod is to keep balance under the collective effect of two groups of disk springs, two
Although the pretightning force of group disk spring can be adjusted, adjust anyway, the work of two groups of disk springs to load connecting rod
All be firmly one group of equal in magnitude, power in opposite direction, only need to apply in load connecting rod any external force can all destroy this
Balance, makes two groups of disk springs deform, so described antivibrator cannot preset early stage rigidity；2nd, must match somebody with somebody in the invention
Closing using two groups of disk springs, all damping could being provided when antivibrator presses or draws load, this not only causes certain
Waste, also so that the length of antivibrator greatly increases.
The application for a patent for invention of Publication No. CN101457553A discloses one kind, and " spring stiffness adjustable tuning quality subtracts
Shake device ", the 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 for changing spring, its
The means of the middle effective active length for changing spring have three kinds, and one is a section be located at spring using curing materials in solidification cylinder
Solidification, two fill in constraint block, and the two interference fit toward intracardiac in helical spring, make the one section of spring contacted with constraint block
Failure, three is to arrange helical raised on constraint block surface, and helical raised is stuck between spring wire, makes to block between spring wire
There is one section of spring failure of helical raised.As can be seen here, although the spring in the patent application scheme can change rigidity, institute
Not only effectively active length substantially shortens the spring that states, and can only compress passive energy dissipation, it is impossible to stretch passive energy dissipation.
Content of the invention
The technical problem to be solved is to provide a kind of adjustable vertical to the three-dimensional shock isolation support of early stage rigidity, should
Three-dimensional shock isolation support not only both compressible passive energy dissipation, and stretchable passive energy dissipation, but also maintain in vertical earthquake isolating bearing
Effective active length of spring.
The present invention solves the technical scheme of above-mentioned technical problem：
A kind of three-dimensional shock isolation support of adjustable vertical to early stage rigidity, the three-dimensional shock isolation support include being sequentially connected in series up and down
Laminated rubber damping bearing and vertical earthquake isolating bearing；Wherein,
Described laminated rubber damping bearing include upper junction plate, lower connecting plate, be clamped in be vertically connected with folded between plate
Layer rubber blanket and at least three tension cable wires for being distributed on laminated rubber bearing surrounding；One company of being fixed on of the tension cable wire
On fishplate bar, other end is fixed on lower connecting plate, and the line of upper and lower two fixing point is parallel to the axis of the laminated rubber bearing
Line；
Described vertical earthquake isolating bearing includes base, and the upper surface of the base is provided with upwardly extending fairlead；Described lead
Spring is coaxially provided with to set is internal, the top of the spring is provided with driving pressing plate；The lower connection of described laminated rubber damping bearing
The middle part of plate forms a projection to the fairlead sunken inside, and the raised lower end is fixedly connected with described driving pressing plate；
Characterized in that,
Described spring is rubber air spring, the internal diameter of the external diameter of the rubber air spring less than fairlead, the two it
Between form an annular space；
Backpressure device is additionally provided with the fairlead of the vertical earthquake isolating bearing, the backpressure device includes that quantity is at least respectively
Two groups of precompressed cable wires of three, two pieces of floating platens and quantity are the cable wire self-locking tensioning of two groups of precompressed cable wire quantity sum
Anchorage, wherein,
Two pieces of described floating platens, one piece is located between the driving pressing plate and rubber air spring, and another piece is located at
Between base and rubber air 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, is provided with axially extending in the middle part of the connecting seat one end
Cylindrical boss, the internal of the 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 first tapered clamp points to connecting seat, and the outer peripheral face of the tensioning swivel nut is positive six side
Shape；
B there is the second self-centering locking fixture described in) tapered sleeve, the internal of the tapered sleeve to be sequentially provided with by 3～5 along axis
The second taper jaw and hollow bolt of claw piece composition, wherein, the head and the second taper jaw of described hollow bolt
Major part is relative, and the outer peripheral face of the tapered sleeve is regular hexagon；
C the plane bearing described in) by ball retainer component and is respectively provided at the tensioning swivel nut end face relative with tapered sleeve
On ring raceway constitute, wherein described ring raceway matched with the ball in ball retainer component；
D) the second self-centering locking fixture is located at the outside of the 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 the tensioning swivel nut and tapered sleeve, described
Anti- torsion compression spring is located in the endoporus of tensioning swivel nut；When precompressed cable wire is compressed through anti-torsion by between the calvus of the first taper jaw
After passing between the calvus of the centre bore and the second taper jaw of spring and plane bearing, under the effect of precompressed cable tension,
Anti- turn round compression spring one is acted on the first taper jaw, and other end is acted on tapered sleeve；
Two groups of described precompressed cable wires are symmetrically distributed in the annular space rotating around the axis of fairlead with linear state
Interior, and, one of one group of precompressed cable wire is separately fixed on the floating platen adjacent with pressing plate is driven, other end be each passed through with
The adjacent floating platen of base is anchored on base by described cable wire self-locking tensioning anchorage；One point of another group of precompressed cable wire
It is not fixed on the floating platen adjacent with base, other end is each passed through the floating platen adjacent with pressing plate is driven by described
Cable wire self-locking tensioning anchorage is anchored on driving pressing plate；
The through hole through the precompressed cable wire is respectively equipped with the position through the precompressed cable wire on described floating platen,
Diameter of the aperture of the through hole more than worn precompressed cable wire；
Dynamic cooperation 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 default equal to rubber air spring to be compressed to
The length of vertical early stage rigidity；
By the tension cable wire tensioning, the precompression equal to design dead load is provided for laminated rubber bearing.
In such scheme, described tension cable wire and precompressed cable wire can be steel wire rope, or prestressing force steel hinge line.
The operation principle of above-mentioned three-dimensional shock isolation support vertical earthquake isolating is as follows：When vertical dynamic loading relative along the axis of fairlead
During effect, pressure is delivered to driving pressing plate via laminated rubber damping bearing, is allowed to move down compressing rubber air spring；Work as dynamic load
Lotus along the axis of fairlead act on opposite to each other when, pulling force is delivered to driving pressing plate via tension cable wire, drives, and two groups
Precompressed cable wire then pulls two pieces of floating platen relative movement compressing rubber air springs respectively.As can be seen here, axial dynamic loading without
By relative or act on three-dimensional shock isolation support opposite to each other, can compressing rubber air spring so as to elastic deformation occurs and consumes
Energy.
From above-mentioned operation principle, the hole of the through hole on the precompressed cable wire described in the course of work and the floating platen
Wall can not produce friction, otherwise interfere with moving up and down for floating platen, and therefore the through-hole diameter is than the precompressed cable wire
Diameter how many greatly, not disturb and moving up and down for floating platen should be affected to be advisable.
Three-dimensional shock isolation support of the adjustable vertical of the present invention to early stage rigidity, wherein described precompressed cable wire are fixed on
One on floating platen can adopt conventional method anchoring, and the U-shaped similar to lifting bolt or by bar bending may also be employed
Component system connects fixation.
For preventing described rubber air spring two from sliding on the floating platen, another improvement project of the present invention
It is：A locating ring is respectively equipped with the relative surface of two pieces of floating platens, and two difference of the rubber air spring is embedding
In described locating ring.
The adjustable vertical of the present invention is had the effect that to the three-dimensional shock isolation support of early stage rigidity compared with prior art：
(1) in the vertical direction, you can compression energy-dissipating and shock-absorbing, and stretchable energy-dissipating and shock-absorbing；Effectively can build depletion high level
The huge pulling force that thing is produced to building foundation is built due to waving；And a spring is only needed, vertical extension is little, good stability.
(2) after vertical dynamic loading is more than the defensive ability/resistance ability of default vertical early stage rigidity, vertical earthquake isolating in the present invention
The bidirectional elastic deformation of seat is symmetrical, does not therefore affect the effect of its compression power consumption because of the change of the positive negative direction of vertical load
Really；
(3) if change two groups of precompressed cable wires length can change whole device vertical early stage rigidity, external force gram
Shock isolating pedestal cannot be made before taking the vertical early stage rigidity to produce vertical deformation, building effectively be inhibited in small earthquake and weak
Produce in the presence of wind shake and rock, the shockproof grade of the wind resistance of predeterminable building significantly reduces the shockproof cost of wind resistance；
(4), during presetting early stage rigidity, effective active length of the rubber air spring is constant, will not change rubber
The original characterisitic parameter of air spring.
(5) using cable wire self-locking tensioning anchorage anchor by the other end of precompressed cable wire, one be can be to the length of precompressed cable wire
It is adjusted, two is using the anti-synergy for turning round compression spring and the first self-centering locking fixture, can effectively prevent pre- compressed steel
Rope is twisted during length adjustment is carried out and changes the characterisitic parameter of cable wire.
(6) thing that can effectively buffer building rocks stretching and the compression shock that trend is produced to building basis, further
Reduce the risk that building topples.
Description of the drawings
Structural representation of Fig. 1～7 for a specific embodiment of three-dimensional shock isolation support of the present invention, wherein, Fig. 1 is
Front view (section view), A-A sectional views of the Fig. 2 for Fig. 1, B-B sectional views of the Fig. 3 for Fig. 1, Fig. 4 is C-C sectional views, and Fig. 5 is Fig. 1
The enlarged drawing of middle local I, Fig. 6 are the enlarged drawing of local II in Fig. 1, and Fig. 7 is the enlarged drawing of local III in Fig. 1.
Fig. 8～12 are the structural representation of cable wire self-locking tensioning anchorage in the illustrated embodiment of Fig. 1～7, wherein, based on Fig. 8
View (section view), in figure, dotted line represents precompressed cable wire, and Fig. 9 is upward view, and D-D profiles of the Figure 10 for Fig. 8, Figure 11 are Fig. 8's
E-E profiles, F-F sectional views of the Figure 12 for Fig. 8.
Structural representation of Figure 13～15 for second specific embodiment of three-dimensional shock isolation support of the present invention, wherein,
Figure 13 is front view (section view), and G-G sectional views of the Figure 14 for Figure 13, Figure 15 are the H-H sectional views of Figure 13.
Structural representation of Figure 16～18 for the 3rd specific embodiment of three-dimensional shock isolation support of the present invention, wherein,
Figure 16 is front view (section view), and I-I sectional views of the Figure 17 for Figure 16, Figure 18 are the J-J sectional views of Figure 16.
Specific embodiment
Example 1
Referring to Fig. 1, the three-dimensional shock isolation support in this example is by the laminated rubber damping bearing and vertical earthquake isolating that connects up and down
Seat composition.
Referring to Fig. 1 and Fig. 4, described laminated rubber damping bearing includes upper junction plate 14, lower connecting plate 15, be clamped on
Laminated rubber bearing 17 and six roots of sensation tension cable wire 16 between lower connecting plate；Wherein, described upper junction plate 14 and lower connecting plate 15
In the form of annular discs, the edge of upper junction plate 14 is provided with installing hole 13；The main body of the laminated rubber bearing 17 is by one layer of rubber 17-1
After being superimposed with one layer of steel plate 17-2, molding sulfuration is constituted, and its periphery self-assembling formation rubber is protected during molding sulfuration
Sheath 17-3.The upper and lower ends face of 17 main body of the laminated rubber bearing is equipped with and is coupled steel plate with to what sulfuration linked together
17-4, described two pieces are coupled steel plate 17-4 and are fixed together by screw with upper junction plate 14 and lower connecting plate 15 respectively.
Described six roots of sensation tension cable wire 16 is symmetrically distributed in its surrounding around the axis of laminated rubber bearing 17, each tension cable wire 16
One is fixed on upper junction plate 14 by lifting bolt 12, and other end is fixed on lower connecting plate 15 by lifting bolt 12.Each
16 tensioning of root tension cable wire, makes the tension force sum of six roots of sensation tension cable wire 16 be equal to the vertical design of three-dimensional shock isolation support described in this example
After dead load, and tensioning, axis of each tension cable wire 16 each parallel to laminated rubber bearing 17.
Referring to Fig. 1～7, the vertical earthquake isolating bearing includes fairlead 1, base 3, rubber air spring 4 and backpressure device.
Referring to Fig. 1～3, described fairlead 1 is circular tube shaped, and its upper end is to the annular envelope for being provided with spacing and guide effect
Lid 2.The middle part of described base 3 is swelled upwards in inverted washbowl shape, and the edge of surrounding is provided with installing hole 13, described guiding
Cover the upper surface that 1 lower end is fixed by screws in its middle part that swells.
Referring to Fig. 1～3, the cyst wall 4-1 of the rubber air spring 4 is formed by the bent capsule that two are chained together, and two is bent
The outer armlet of capsule transition position is provided with girdle ring 4-2, and described cyst wall 4-1 two is sealed by Seal end plate 4-3, and Seal end plate 4-3 matches somebody with somebody
Close adpting flange 4-4 to clamp therebetween the edge of cyst wall 4-1 ends, filled with compressed air in the cyst wall 4-1.Described
Rubber air spring 4 be coaxially located in fairlead 1, the upper end of the rubber air spring 4 is provided with and the fairlead 1 is dynamic coordinates
Driving pressing plate 5.Internal diameter of the external diameter of the rubber air spring 4 less than fairlead 1, forms an annular empty therebetween
Between.The middle part of the lower connecting plate 15 forms the raised 15-1 of teacupful shape to 1 sunken inside of the fairlead, the raised 15-1's
Lower end is fixed together by screw with described driving pressing plate 5.
Referring to Fig. 1, the gap more than amplitude between lower connecting plate 15 and annular capping 2, is provided with
Referring to Fig. 1～7, in described fairlead 1, is provided with backpressure device, the backpressure device include two groups of precompressed cable wires, two
Block floating platen and eight cable wire self-locking tensioning anchorages 19；Wherein, two groups of described precompressed cable wires are by three precompressed cable wire groups
Into first group of precompressed cable wire 8 and second group of precompressed cable wire 9 being made up of five precompressed cable wires；Two pieces of described floating platens are
It is located at first floating platen 6 driven between pressing plate 5 and rubber air spring 4 and is located at base 3 and rubber air spring 4
Between the second floating platen 7, two pieces of floating platens are moved with the inwall of fairlead 1 respectively and are coordinated；
Referring to Fig. 8～12, each cable wire self-locking tensioning anchorage 19 is by the first self-centering locking fixture, the second self-centering locking
Fixture, anti-torsion compression spring 19-1 and plane bearing 19-2 composition, wherein：
The first described self-centering locking fixture has a connecting seat 19-3, and the edge of connecting seat 19-3 is provided with installing hole
19-12, is provided with axially extending cylindrical boss 19-4 in the middle part of lower end, the internal of boss 19-4 is provided with first along axial line
Taper hole 19-5, is provided with the first taper jaw 19-7 being made up of 3 claw pieces in the taper hole, the outer peripheral face of the boss 19-4 is arranged
There is tensioning swivel nut 19-6, be threadedly coupled therebetween；Wherein, the microcephaly of first tapered clamp 19-7 points to connecting seat 19-3,
The outer peripheral face of the tensioning swivel nut 19-6 is regular hexagon；
The second described self-centering locking fixture has a tapered sleeve 19-8, internal being sequentially provided with along axis of tapered sleeve 19-8
One section of second taper hole 19-13 and one section of screwed hole；Wherein, the second taper being made up of 3 claw pieces is provided with the second taper hole 19-13
Jaw 19-9, is provided with hollow bolt 19-10, the head of hollow bolt 19-10 and the second taper jaw 19- in described screwed hole
9 major part is relative, and the outer peripheral face of the tapered sleeve 19-8 is regular hexagon；
Described plane bearing 19-2 by ball retainer component 19-11 and is respectively provided at tensioning swivel nut 19-6 and tapered sleeve
Ring raceway on the relative end faces of 19-8 is constituted, in wherein described ring raceway and ball retainer component 19-11
Ball matches；
The second self-centering locking fixture is located at the outside of tensioning swivel nut 19-6 heads, and the second taper jaw 19-9
Microcephaly is consistent with the sensing of the first taper jaw 19-7 microcephalies；Described plane bearing 19-2 be located at the tensioning swivel nut 19-6 with
Between tapered sleeve 19-8, described anti-torsion compression spring 19-1 is located in the endoporus of tensioning swivel nut 19-6.When precompressed cable wire is by first
Through anti-centre bore and the second tapered clamp for turning round compression spring 19-1 and plane bearing 19-2 between the calvus of taper jaw 19-7
After passing between the calvus of pawl 19-9, under the effect of precompressed cable tension, anti-turn round compression spring 19-1 one acts on
On first taper jaw 19-7, other end is acted on tapered sleeve 19-8.
Referring to Fig. 1～7, two groups of precompressed cable wires are distributed in described respectively with linear state around 1 axisymmetrical of fairlead
In annular space, each precompressed cable wire is each parallel to 1 axis of fairlead, and first group of precompressed cable wire 8 is away from fairlead axis
Distance is equal to distance of second group of precompressed cable wire 9 away from fairlead axis；Wherein, the following difference of first group of precompressed cable wire 8
It is 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 19 is anchored on the driving pressing plate 5；The top of second group of precompressed cable wire 9 is fixed on by lifting bolt 12 respectively
On one floating platen 6, following is anchored on the base 3 through the second floating platen 7 by a cable wire self-locking tensioning anchorage 19；Described
The position passed through in each first group of precompressed cable wire 8 on first floating platen 6 is provided with the first through hole 10 that passes through for which, and this
Diameter of the aperture of one through hole 10 more than first group of precompressed cable wire 8；On described driving pressing plate 5, at each first group
Precompressed cable wire 8 is equipped with the first anchor hole 5-1 for anchoring first group of precompressed steel wire rope 8 through position.Described second floats presses
The position passed through in each second group of precompressed cable wire 9 on plate 7 is provided with the second through hole 11 passed through for which, second through hole 11
Diameter of the aperture more than second group of precompressed cable wire 9；On described base 3, position is passed through in each second group of precompressed cable wire 9
Put the second anchor hole 3-1 for being equipped with second group of precompressed steel wire rope 9 of anchoring.Described tension cable wire and precompressed cable wire are by suspension ring spiral shell
Following closely the method being fixed in respective members is：Lifting bolt 12 is fixed on corresponding component, then by the one of precompressed cable wire
Head system is connected on the suspension ring of lifting bolt, and fixed dead by rope cramp (being not drawn in figure).
Referring to Fig. 1, the connecting seat 19-3 of the cable wire self-locking tensioning anchorage 19 is fixed on the lower surface of base 3 by screw
Or drive the upper surface of pressing plate 5.Top and the annular of the cable wire self-locking tensioning anchorage 19 that drive pressing plate 5 upper surface are wherein fixed on
The gap more than amplitude is provided between capping 2.
Described tension cable wire and precompressed cable wire in this example can be steel wire rope, or prestressing force steel hinge line, have
When body is implemented, voluntarily can choose according to actual needs.
Referring to Fig. 1～3 and Fig. 6, the relative surface of first floating platen 6 and the second floating platen 7 is equipped with internal diameter
The locating ring 18 matched with the Seal end plate 4-3 external diameters of rubber air spring 4, the sealing at 4 two of the rubber air spring
End plate 4-3 is embedded in the locating ring 18 on the first floating platen 6 and the second floating platen 7 respectively.
Referring to Fig. 1～3, in order to realize the purpose of predeterminable vertical early stage rigidity, above-mentioned three-dimensional shock isolation support installation method
As follows：(1) first according to default vertical early stage rigidity and the characterisitic parameter of rubber air spring 4, rubber air spring 4 is calculated
Meet length during vertical early stage rigidity；(2) Fig. 1 is pressed by the rubber air spring 4, backpressure device of vertical earthquake isolating bearing and driving
Pressing plate 5 is assembled, and makes the first taper jaw of the other end of each precompressed cable wire from corresponding cable wire self-locking tensioning anchorage 19
Pass in 19-7, the centre bore of the second taper jaw 19-9 and hollow bolt 19-10；Then, (3) are the precompressed cable wire for exposing
Fag end system be connected on traction stretching machine on, and draw tensioning while monitor rubber air spring 4 decrement (as tensioning away from
From), to determine the distance between two pieces of floating platens；When the distance between two pieces of floating platens are equal to rubber air spring
4 when being compressed to the length for meeting vertical early stage rigidity, moves forward the second self-centering locking fixture, while adjust turning tensioning spiral shell
Set 19-6 so that plane bearing 19-2 is clamped tightly between the tensioning swivel nut 19-6 and tapered sleeve 19-8, and anti-torsion compresses bullet
Spring 19-1 is compressed, and the tension force produced by which promotes the first taper jaw 19-7 reaches to clamp precompressed cable wire, turns institute thereafter
The hollow bolt 19-10 for stating will be dead positioned at precompressed cable wire folder in the second taper jaw 19-9；Hereafter, traction stretching machine is removed, is cut
Disconnected unnecessary precompressed cable wire, you can rubber air spring 4 is clamped between two pieces of floating platens all the time；(4) previous step is obtained
To part be inserted in fairlead 1, then load onto the lower connecting plate 18 of annular capping 2 and laminated rubber damping bearing successively；(5) last
Fig. 1 and 4 is pressed by the miscellaneous part of laminated rubber damping bearing installed in the top of the lower connecting plate 18, obtain final product described three-dimensional every
Shake device.
When presetting vertical early stage rigidity, the tension force sum of two groups of precompressed cable wires need to be more than or equal to the three-dimensional isolation device institute
The erect static load lotus that bears.
Referring to Fig. 1 and Fig. 8～12, in the work progress for 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 19-6 turned in cable wire self-locking tensioning anchorage 19 is adjusted.
Under ideal conditions, the vertical ripple of earthquake should be unable to occur to building during building transmission by earthquake isolating equipment
Displacement.This is based on, the operation principle of this example three-dimensional shock isolation support vertical earthquake isolating is as follows：Referring to Fig. 1, when the vertical ripple of earthquake is produced
When raw dynamic loading overcomes the vertical early stage rigidity, if the dynamic loading above pushes away base 3 along the axis of fairlead 1, drive
The counteracting force of pressing plate 5 just compresses downwards rubber air spring 4, and building is motionless with shifting on ground for base 3；If the dynamic load
Axis drop-down base 3 of the lotus along fairlead 1, two groups of precompressed cable wires pull two pieces of floating platen relative movements compression rubbers respectively
Glue air spring 4, and base 3 is then moved down with ground away from driving pressing plate 5, now building is still motionless.As can be seen here, local
When shake compressional wave makes ground generation up-down vibration, equal compressible rubber air spring produces elastic deformation and consumes energy.In the same manner, building
When rocking in the presence of wind shake or flatly seismic wave, it is no matter pulling force to which to the dynamic loading that the three-dimensional shock isolation support is produced
Or the equal compressible rubber air spring of pressure produces elastic deformation and consumes energy.
Example 2
This example has following difference with example 1：
Referring to Figure 13～15, first group of precompressed cable wire 8 and second group of precompressed cable wire 9 are by three precompressed cable wire groups
Into.The quantity of described cable wire self-locking tensioning anchorage 19 is six, is respectively used to the other end for fixing each precompressed cable wire.
This example is above-mentioned same as Example 1 with implementation.
Example 3
Referring to Figure 16～18, this example is first group of precompressed cable wire 8 and second group of precompressed cable wire 9 with the difference of example 2
By five precompressed cable wire compositions.The quantity of described cable wire self-locking tensioning anchorage 19 is ten, is respectively used to fix each
The other end of precompressed cable wire.
This example other embodiment other than the above is same as Example 2.
Claims (3)
1. three-dimensional shock isolation support of a kind of adjustable vertical to early stage rigidity, it is folded that the three-dimensional shock isolation support includes being sequentially connected in series up and down
Layer rubber earthquake isolation support and vertical earthquake isolating bearing；Wherein,
Described laminated rubber damping bearing includes upper junction plate, lower connecting plate, is clamped in the lamination rubber being vertically connected between plate
Rubber cushion and at least three tension cable wires for being distributed on laminated rubber bearing surrounding；One of the tension cable wire is fixed on upper junction plate
On, other end is fixed on lower connecting plate, and the line of upper and lower two fixing point is parallel to the axis of the laminated rubber bearing；
Described vertical earthquake isolating bearing includes base, and the upper surface of the base is provided with upwardly extending fairlead；The fairlead
Inside is coaxially provided with spring, and the top of the spring is provided with driving pressing plate；The lower connecting plate of described laminated rubber damping bearing
Middle part forms a projection to the fairlead sunken inside, and the raised lower end is fixedly connected with described driving pressing plate；
Characterized in that,
Described spring is rubber air spring, the internal diameter of the external diameter of the rubber air spring less than fairlead, therebetween shape
Into an annular space；
Backpressure device is additionally provided with the fairlead of the vertical earthquake isolating bearing, the backpressure device includes that quantity is at least three respectively
Two groups of precompressed cable wires, two pieces of floating platens and cable wire self-locking tensioning anchor that quantity is two groups of precompressed cable wire quantity sum
Tool, wherein,
Two pieces of described floating platens, one piece is located between the driving pressing plate and rubber air spring, and another piece is located at base
Between rubber air 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, is provided with axially extending circle in the middle part of the connecting seat one end
Cylindrical end tangs, the internal of the boss are provided with the first taper jaw being made up of 3～5 claw pieces along axial line, and outer peripheral face is arranged with
Tensioning swivel nut；Wherein, the microcephaly of first tapered clamp points to connecting seat, and the outer peripheral face of the tensioning swivel nut is regular hexagon；
B there is the second self-centering locking fixture described in) tapered sleeve, the internal of the tapered sleeve to be sequentially provided with by 3～5 claws along axis
The second taper jaw and hollow bolt of piece composition, wherein, the head and the major part of the second taper jaw of described hollow bolt
Relative, the outer peripheral face of the tapered sleeve is regular hexagon；
C the plane bearing described in) by ball retainer component and is respectively provided on the tensioning swivel nut end face relative with tapered sleeve
Ring raceway is constituted, and wherein described ring raceway is matched with the ball in ball retainer component；
D) the second self-centering locking fixture is located at the outside of the 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 the tensioning swivel nut and tapered sleeve, described anti-torsion
Compression spring is located in the endoporus of tensioning swivel nut；When precompressed cable wire by between the calvus of the first taper jaw through anti-torsion compression spring
After passing and the calvus of the centre bore and the second taper jaw of plane bearing between, under the effect of precompressed cable tension, described
Anti- turn round compression spring one is acted on the first taper jaw, and other end is acted on tapered sleeve；
Two groups of described precompressed cable wires are symmetrically distributed in the annular space with linear state rotating around the axis of fairlead,
And, of one group of precompressed cable wire is separately fixed on the floating platen adjacent with pressing plate is driven, and other end is each passed through and bottom
The adjacent floating platen of seat is anchored on base by described cable wire self-locking tensioning anchorage；One difference of another group of precompressed cable wire
It is fixed on the floating platen adjacent with base, other end is each passed through the floating platen adjacent with pressing plate is driven by described steel
Suo Zisuo tensioning anchorages are anchored on driving pressing plate；
The through hole through the precompressed cable wire is respectively equipped with the position through the precompressed cable wire on described floating platen, this leads to
Diameter of the aperture in hole more than worn precompressed cable wire；
Dynamic cooperation 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 default vertical equal to rubber air spring to be compressed to
The length of early stage rigidity；
By the tension cable wire tensioning, the precompression equal to design dead load is provided for laminated rubber bearing.
2. three-dimensional shock isolation support of a kind of adjustable vertical according to claim 1 to early stage rigidity, it is characterised in that described
Tension cable wire and precompressed cable wire be steel wire rope or prestressing force steel hinge line.
3. three-dimensional shock isolation support of a kind of adjustable vertical according to claim 1 and 2 to early stage rigidity, it is characterised in that
Two pieces of floating platens are respectively equipped with a locating ring on relative surface, and two of the rubber air spring is embedded in institute respectively
In the locating ring that states.
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| CN201610906360.7A CN106499243B (en) | 2016-10-17 | 2016-10-17 | Three-dimensional shock insulation support of adjustable vertical early rigidity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945893A (en) * | 2020-05-30 | 2020-11-17 | 海南大学 | Three-dimensional shock insulation/support that shakes |
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