CN106593053A - Three-dimensional vibration isolation support seat capable of presetting vertical initial rigidity - Google Patents
Three-dimensional vibration isolation support seat capable of presetting vertical initial rigidity Download PDFInfo
- Publication number
- CN106593053A CN106593053A CN201610905756.XA CN201610905756A CN106593053A CN 106593053 A CN106593053 A CN 106593053A CN 201610905756 A CN201610905756 A CN 201610905756A CN 106593053 A CN106593053 A CN 106593053A
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- China
- Prior art keywords
- steel wire
- wire rope
- fairlead
- plate
- precompressed
- Prior art date
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Classifications
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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
- E04H9/022—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising laminated structures of alternating elastomeric and rigid layers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/36—Bearings or like supports allowing movement
Abstract
The invention relates to a three-dimensional vibration isolation support seat capable of presetting the vertical initial rigidity. The three-dimensional vibration isolation support seat comprises a vertical vibration isolation support seat and a laminated rubber vibration isolation support seat which are mutually connected in series. The three-dimensional vibration isolation support seat is characterized in that a back pressure device is also arranged in a guide sleeve of the vertical vibration isolation support seat; the back pressure device comprises more than three pre-pressing steel wire ropes, steel wire rope direction changing elements with the same number as the pre-pressing steel wire ropes and a floating back pressure steel plate; the pre-pressing steel wire ropes are in a fold-line state; one end of each pre-pressing steel wire rope is symmetrically fixed on the floating back pressure steel plate by using the axial line of the guide sleeve as the symmetry axis; the other end of each pre-pressing steel wire rope is folded back after bypassing one relative steel wire rope direction changing element and is then fixed on the base after passing through the floating back pressure steel plate beside a fixing point of the pre-pressing steel wire rope on the floating back pressure steel plate; and the pre-pressing steel wire ropes are tensioned to the tension required by the preset vertical initial rigidity, so that a composite spring is always clamped between a driving press plate and the floating back pressure steel plate.
Description
Technical field
The present invention relates to a kind of building vibration proof (or vibrations) device, and in particular to it is a kind of by laminated steel and rubber pillow with it is perpendicular
To the three-dimensional isolation device of 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 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 the A of Publication No. CN 102409777 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 misplaced 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.Although scheme can improve three-dimensional isolation described in the patent application
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 initial stiffness, 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 includes shell, is located at the load connecting rod and two groups of disk springs of inside the shell, described, the load connection
Regulation gear connected therewith is provided with the middle part of bar, is respectively equipped with the load connecting rod of the regulation gear both sides and is connected with load
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 in respectively between the left-handed nut or right-handed nut and the shrouding of outer casing end.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 that balance is kept 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 it is firmly one group of power equal in magnitude, in opposite direction, only need to apply any external force in load connecting rod can all destroy this
Balance, makes two groups of disk springs deform, so described antivibrator cannot preset initial stiffness；2nd, must match somebody with somebody in the invention
Close and use two groups of disk springs, damping could be all provided when antivibrator is pressed or draws load, this not only causes certain
Waste, the length of antivibrator is greatly increased.
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, and by changing the thickness of mass its characteristic frequency is changed, viscous by changing
The flow of the working media of stagnant antivibrator changes its damping ratio, and by changing effective active length of spring its rigidity is changed, its
The means of the middle effective active length for changing spring have three kinds, and one is a section be located on 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 effective active length substantially shortens the spring stated, and can only compress passive energy dissipation, it is impossible to stretch passive energy dissipation.
The content of the invention
The technical problem to be solved is to provide the three-dimensional shock isolation support that a kind of energy presets vertical initial stiffness, should
Three-dimensional isolation device both compressible passive energy dissipation, and stretchable passive energy dissipation；But also maintain spring in vertical earthquake isolating bearing
Effective active length.
The present invention solves the technical scheme of above-mentioned technical problem：
A kind of energy presets the three-dimensional shock isolation support of vertical initial stiffness, and the three-dimensional isolation device includes what is be 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 it is folded between plate
Layer rubber blanket and at least three tensile steel wire ropes for being distributed on laminated rubber bearing surrounding；One of the tensile steel wire rope is fixed on
On upper junction plate, other end is fixed on lower connecting plate, and the line of upper and lower two fixing point is parallel to the laminated rubber bearing
Axis；
Described vertical earthquake isolating bearing includes base, and the upper surface of the base is provided with upwardly extending fairlead；It is described to 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 lower surface is raised to fairlead sunken inside formation one, and the projection is fixedly connected with described driving pressing plate；
Characterized in that,
Described spring is complex spring (full name is rubber-metal spiral complex spring), and the external diameter of the complex spring is less than
The internal diameter of fairlead, forms therebetween an annular space；
Backpressure device is additionally provided with the fairlead of the vertical earthquake isolating bearing；The backpressure device includes more than three pre-
The compressed steel cord steel wire rope break-in element equal with precompressed steel wire rope quantity and one block of floating back-pressure steel plate, wherein,
Described floating back-pressure steel plate is located between complex spring and base；
Described steel wire rope break-in element is fixed on described driving pressing plate around the axisymmetrical of described fairlead；
The precompressed steel wire rope is distributed in described annular space with broken line state, and the one of each precompressed steel wire rope
Head is fixed on floating back-pressure steel plate around the axisymmetrical of described fairlead, and other end passed around the change of a relative steel wire rope
Turn back to after element, floating back-pressure Interal fixation is then passed through by the fixing point from the precompressed steel wire rope on floating back-pressure steel plate
On the base；On described floating back-pressure steel plate, it is equipped with through pre- compressed steel each precompressed steel wire penetrating position
The through hole of cord, the aperture of the through hole is more than the diameter of the precompressed steel wire rope；
Described fairlead and drive dynamic cooperation is respectively adopted between pressing plate and floating back-pressure steel plate；
By precompressed steel wire tensioning to tension force needed for vertical initial stiffness is preset, described complex spring is set to be clamped in all the time
Drive between pressing plate and floating back-pressure steel plate；
The tensile steel wire rope is tensioned the precompression provided for laminated rubber bearing equal to design dead load.
The operation principle of above-mentioned three-dimensional shock isolation support vertical earthquake isolating is as follows：When vertical dynamic loading it is 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 compression combined spring；When dynamic loading edge
When the axis of fairlead is acted on opposite to each other, pulling force is delivered to driving pressing plate via tensile steel wire rope, drives and moved on pressing plate, and pre- compressed steel
Cord is then reversely sling floating back-pressure steel plate compression complex spring by steel wire rope break-in element.As can be seen here, axial dynamic loading
It is no matter relative or act on shock isolating pedestal opposite to each other, can compression combined spring so as to elastic deformation occurs and consumes energy.
It is logical on the precompressed steel wire rope described in the course of work and the floating back-pressure steel plate from above-mentioned operation principle
The hole wall in hole can not produce friction, otherwise interfere with moving up and down for floating back-pressure steel plate, therefore the through-hole diameter compares institute
The diameter for stating precompressed steel wire rope is how many greatly, should be not disturbing and affect moving up and down for floating back-pressure steel plate to be advisable.
In such scheme, described steel wire rope break-in element is the suspension ring shape structure of common fixed pulley or similar break-in function
Part, such as lifting bolt, U-shaped component.
Energy of the present invention presets the three-dimensional shock isolation support of vertical initial stiffness, wherein described precompressed steel wire rope two
Similar lifting bolt system can may also be employed and connects fixation using being welded and fixed, but, if two is all using welding or lifting bolt
System connects fixed dead, then to reach the purpose of default initial stiffness, must just precalculate and strictly control the pre- steel wire
The length ability pre-set tension of rope, and then reach the purpose of default initial stiffness.But, in actual production debugging process,
Then there are following two hang-ups in the purpose for reaching default initial stiffness using the method for controlling the precompressed rope capacity, one is
Welding is that the process for connecing can produce error, though two are to control welding or are error produced by the process for connecing, but steel wire rope
The change of its characterisitic parameter is also resulted in cut-out, placement process.In order to solve above-mentioned technical barrier, of the present invention changes
Entering scheme is：
The other end of the precompressed steel wire rope of the vertical earthquake isolating bearing is fixed on base by steel wire rope self-locking anchorage；It is described
Steel wire rope self-locking anchorage be made up of installing hole, jaw and check bolt, wherein,
Described installing hole is located on base；Described installing hole is made up of one section of taper hole and one section of screwed hole, wherein institute
State taper hole and be located at the side for leaning on fairlead, and tip is pointed in the fairlead, the screwed hole is located remotely from the another of fairlead
Side；
Described jaw is to match cone with the taper hole, and is made up of 3～5 lobes, and it is provided with folder along axis in vivo
Hold the clamping hole of precompressed steel wire rope；
Described check bolt matches with the screwed hole, and is provided with diameter greater than corresponding pre- compressed steel along axis in vivo
The circular hole of cord diameter；
Described jaw is arranged in the taper hole, and check bolt is arranged in the screwed hole.
From above-mentioned improvement project, one of each precompressed steel wire rope is fixed in floating counter, other end
By passing in the clamping hole and circular hole of described steel wire rope self-locking anchorage, so the fag end system exposed can be connected on traction tensioning
On machine, tension force is monitored using tension detecting instrument while tensioning is drawn.When the precompressed steel wire tensioning to it is default initial just
Needed for degree during tension force, the jaw is promoted to clamp precompressed steel wire rope and locked by turning check bolt, even if pre- steel wire
Rope also will not loosen in the vibration processes of relaxation repeatedly.
To prevent described complex spring two from sliding on the driving pressing plate and floating back-pressure steel plate, the present invention's is another
Individual improvement project is：The surface for driving pressing plate relative with floating back-pressure steel plate is equipped with a locating ring, the complex spring
Two be embedded in respectively in the locating ring.
The energy of the present invention is preset the three-dimensional shock isolation support of vertical initial stiffness and is had the effect that 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
Build the huge pulling force that thing is produced due to waving to building foundation；And a complex spring is only needed, vertical extension is little, stability
It is good.
(2) after defensive ability/resistance ability of the vertical dynamic loading more than default vertical initial stiffness, vertical earthquake isolating in the present invention
The bidirectional elastic deformation of seat is symmetrical, therefore the effect of its compression power consumption is not affected because of the change of the positive negative direction of vertical load
Really；
(3) as long as the length for changing precompressed steel wire rope can change the vertical initial stiffness of whole bearing, external force is overcoming
Vibration isolating suspension cannot be made before the initial stiffness to produce vertical deformation, effectively inhibit building in small earthquake and weak wind shake
The lower generation of effect is rocked, and the shockproof grade of wind resistance of predeterminable building significantly reduces the shockproof cost of wind resistance；
(4) preset during initial stiffness, effective active length of the complex spring is constant, will not change complex spring
Original characterisitic parameter.
(5) 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
Fig. 1～6 are the structural representation of a specific embodiment of three-dimensional shock isolation support of the present invention, wherein, Fig. 1 is
Front view (D-D rotations of Fig. 3 are cutd open), Fig. 2 is A-A sectional views (omitting precompressed steel wire rope) of Fig. 1, and Fig. 3 is cutd open for the B-B of Fig. 1
View (omits precompressed steel wire rope), and Fig. 4 is C-C sectional views (omitting tensile steel wire rope) of Fig. 1, and Fig. 5 is the structure of Fig. 1 local I
Enlarged drawing, Fig. 6 is the schematic enlarged-scale view of Fig. 1 local II.
Fig. 7～12 are the structural representation of second specific embodiment of three-dimensional shock isolation support of the present invention, wherein, figure
7 is front view (section view), and Fig. 8 is E-E sectional views (omitting precompressed steel wire rope) of Fig. 7, and Fig. 9 (is saved for F-F sectional views of Fig. 7
Omit precompressed steel wire rope), Figure 10 is G-G cutaway view Amplified images of Fig. 8, and Figure 11 is the schematic enlarged-scale view of Fig. 7 local III, and Figure 12 is to scheme
11 H-H cutaway view Amplified images.
Figure 13～16 are the structural representation of the 3rd specific embodiment of three-dimensional shock isolation support of the present invention, its
In, Figure 13 is front view (section view), and Figure 14 is I-I sectional views (omitting precompressed steel wire rope) of Figure 13, and Figure 15 is the J-J of Figure 13
Sectional view (omits precompressed steel wire rope), and Figure 16 is the schematic enlarged-scale view of Figure 13 local IV.
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 connected up and down
Seat composition.
Referring to Fig. 1 and Fig. 4, described laminated rubber damping bearing is including upper junction plate 15, lower connecting plate 8, on being clamped in
Laminated rubber bearing 17 and six roots of sensation tensile steel wire rope 16 between lower connecting plate；Wherein, described upper junction plate 15 and lower connecting plate 8
In the form of annular discs, the edge of upper junction plate 15 is provided with installing hole 6；The main body of the laminated rubber bearing 17 by one layer of rubber 17-1 with
Molding sulfuration after one layer of steel plate 17-2 is superimposed is constituted, and its periphery self-assembling formation rubber protection during molding sulfuration
Layer 17-3.The upper and lower ends face of the main body of the laminated rubber bearing 17 is equipped with connection steel plate 17-4, two pieces of connections steel plate 17-
4 be fixed by screws in upper junction plate 15 and lower connecting plate 8 respectively together with.Described six roots of sensation tensile steel wire rope 16 is around lamination rubber
The axis of rubber cushion 17 is symmetrically distributed in its surrounding, and of each tensile steel wire rope 16 is fixed on upper company by lifting bolt 10
On fishplate bar 15, other end is fixed on lower connecting plate 8 by lifting bolt 10.Each tensile steel wire rope 16 is tensioned, and resists the six roots of sensation
The tension force sum for drawing steel wire rope 16 is equal to the vertical design dead load of three-dimensional vibration isolating device described in this example, and after being tensioned, Mei Yigen
Axis of the tensile steel wire rope 16 each parallel to laminated rubber bearing 17.
Referring to Fig. 1～6, the vertical earthquake isolating bearing includes fairlead 1, base 3, complex spring 4 and backpressure device.
Referring to Fig. 1～3, described fairlead 1 is circular tube shaped, and its upper end radially shrinks to have formed spacing and guiding work
The annular edge of a wing 2, lower end extends radially outwards to form a ring flange 5.Described base 3 is discoid, and the edge of surrounding sets
There is installing hole 6, described fairlead 1 is fixed thereon the middle part on surface by the ring flange 5 set by lower end.
Referring to Fig. 1～3, complex spring 4 is stated by cylindrical helical compression spring 4-1 and be wrapped in cylindrical helical compression bullet
Rubber spring 4-2 composite sulfurations outside spring 4-1 are formed.Described complex spring 4 is coaxially located in fairlead 1, the complex spring 4
Upper end be provided with and the dynamic driving pressing plate 7 for coordinating of the fairlead 1.The external diameter of the complex spring 4 is interior less than fairlead 1
Footpath, forms therebetween an annular space.The middle part of the lower surface of the lower connecting plate 8 to the sunken inside of the fairlead 1 is formed
The raised 8-1 of teacupful shape, the raised 8-1 is fixed together with described driving pressing plate 7 by screw.
Referring to Fig. 1, the gap 14 more than amplitude is provided between lower connecting plate 8 and the annular edge of a wing 2；In order to avoid vibration processes
Described in drive and produce between pressing plate 7 and the annular edge of a wing 2 shock, be provided between anticollision between the driving pressing plate 7 and the annular edge of a wing 2
Gap 13.
Referring to Fig. 1～3, described backpressure device is located in the annular space, and its concrete scheme is as follows：
Referring to Fig. 1～6, described backpressure device is only used as hanging for steel wire rope break-in element by three precompressed steel wire ropes 9, three
Another six lifting bolts 10 of 10, one block of floating back-pressure steel plate 11 of ring screw and fixed precompressed steel wire rope 9 are constituted.Wherein,
Described floating back-pressure steel plate 11 is located between complex spring 4 and base 3, and moves cooperation with the fairlead 1；
Described three are only used as the lifting bolt 10 of steel wire rope break-in element and fix around the axisymmetrical of described fairlead 1
On the driving pressing plate 7；
Axisymmetrical on the floating back-pressure steel plate 11 around fairlead 1 is provided with three lifting bolts 10, on the base 3
Another three lifting bolts 10 are correspondingly provided with by the relative position of set three lifting bolts 10 on floating back-pressure steel plate 11；Three
Root precompressed steel wire rope 9 is distributed in the annular space with broken line state, and, of each precompressed steel wire rope 9 is to connect
It is fixed on a lifting bolt 10 set on floating back-pressure steel plate 11, other end bypasses relative as steel wire rope break-in unit
Turn back after the lifting bolt 10 of part, then the precompressed steel wire rope 9 correspondence bottom from by its fixing point on floating back-pressure steel plate 11
The position of set lifting bolt 10 passes through floating back-pressure steel plate 11 on seat 3, is to connect fixed set lifting bolt 10 on the base 3
On；On described floating back-pressure steel plate 11, it is equipped with through precompressed steel wire rope 9 through position in each precompressed steel wire rope 9
Through hole 12, the aperture of the through hole 12 is more than the diameter of the precompressed steel wire rope 9.
The surface for driving pressing plate 7 relative with floating back-pressure steel plate 11 is equipped with the external diameter phase of internal diameter and complex spring 4
The locating ring 18 of matching, two of the complex spring 4 is embedded in drives pressing plate 7 and the locating ring 18 on floating back-pressure steel plate 11 respectively
It is interior.
Referring to Fig. 1～3, in order to realize the purpose of predeterminable vertical initial stiffness, above-mentioned three-dimensional shock isolation support installation method
It is as follows：(1) it is first that the decrement of complex spring 4 is determined according to the coefficient of elasticity for needing default vertical initial stiffness and complex spring 4, enter
And calculate the length that each precompressed steel wire rope 9 meets vertical initial stiffness requirement；(2) by Fig. 1～3 by complex spring 4, institute
After stating backpressure device and driving pressing plate 7 to connect, then adjust repeatedly, make the physical length of each precompressed steel wire rope 9 and calculate
Equal length, is then to connect on lifting bolt 10 on the base 3, and fixed with common rope cramp (not showing in figure)
Extremely, complex spring 4 is clamped in all the time between the driving pressing plate 7 and floating back-pressure steel plate 11；(3) step (2) is assembled
Part be put in fairlead 1, and be directed to set and 1 be fixed together with base 3, the lower connecting plate 8 is consolidated with driving pressing plate 7
It is scheduled on together；(4) top that laminated rubber damping bearing is arranged on Fig. 1 and 4 lower connecting plate 8 is finally pressed, is obtained final product described
Three-dimensional shock isolation support.
When presetting vertical initial stiffness, the tension force sum of three precompressed steel wire ropes 9 need to be more than or equal to the three-dimensional isolation
The erect static load lotus that seat is born.
Under ideal conditions, the vertical ripple of earthquake should be unable to occur by earthquake isolating equipment to building during building transmission
Displacement.Based on this, 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 initial stiffness, if the dynamic loading above pushes away base 3 along the axis of fairlead 1, drive
The counteracting force of pressing plate 7 just compresses downwards complex spring 4, and building is motionless with shifting on ground for base 3；If the dynamic loading edge
The drop-down base 3 of axis of fairlead 1, precompressed steel wire rope 9 is then reversely hung by the lifting bolt 10 as steel wire rope break-in element
Floating back-pressure steel plate 11 is played, upwards compression combined spring 4, base 3 is moved down with ground, but building is still motionless.As can be seen here,
When P wave makes ground generation up-down vibration, compressible complex spring produces elastic deformation and consumes energy.In the same manner, building
To the dynamic loading that the three-dimensional shock isolation support is produced it is no matter pulling force to it when rocking in the presence of wind shake or flatly seismic wave
Or the compressible complex spring of pressure produces elastic deformation and consumes energy.
Example 2
Referring to Fig. 7～12, this example has been substantially carried out following some improvement on the basis of example 1：(1) by precompressed steel wire rope 9
Four are increased to by three；(2) U-shaped component 19 will be replaced with as the lifting bolt 10 of steel wire rope break-in element；(3) will be fixed pre-
The lifting bolt 10 of the other end of compressed steel cord 9 replaces with steel wire rope self-locking anchorage 20；(4) middle part of base 3 is thickened and upwards
Protuberance forms inverted washbowl shape, in order to install steel wire rope self-locking anchorage 20；(5) described backpressure device is correspondingly changed
For：
Described backpressure device is only used as the U shapes component 19, of steel wire rope break-in element by four precompressed steel wire ropes 9, four
The lifting bolt 10 and four fixed precompressed steel wire ropes 9 of fixed 9 one, the precompressed steel wire rope of block floating back-pressure steel plate 11, four is another
The steel wire rope self-locking anchorage 20 of head is constituted；Wherein,
Floating back-pressure steel plate 11 is located between complex spring 4 and base 3, and moves cooperation with the fairlead 1；
The four U-shaped components 19 for being only used as steel wire rope break-in element fix the drive around the axisymmetrical of described fairlead 1
On dynamic pressure plate 7；Referring to Figure 10, described U-shaped component 19 is made up of round steel bending, on the driving pressing plate 7, is arranging U-shaped structure
The relevant position of part 19 is provided with the circular hole matched with 19 two sides of U-shaped component, and the U-shaped component 19 is inserted in the circular hole,
The two is welded and fixed together；
Axisymmetrical on the floating back-pressure steel plate 11 around fairlead 1 is provided with four lifting bolts 10, on the base 3
Four steel wire rope self-locking anchorages 20 are correspondingly provided with by the relative position of set four lifting bolts 10 on floating back-pressure steel plate 11；
Four precompressed steel wire ropes 9 are distributed in the annular space with broken line state, and, one of each precompressed steel wire rope 9 by
Lifting bolt 10 is fixed on floating back-pressure steel plate 11, and other end passed around the relative U-shaped structure as steel wire rope break-in element
Turn back after part 19, then the precompressed steel wire rope 9 corresponds to set steel on base 3 from by its fixing point on floating back-pressure steel plate 11
The position of cord self-locking anchorage 20 passes through floating back-pressure steel plate 11, is fixed on the base 3 by steel wire rope self-locking anchorage 20；Described
On floating back-pressure steel plate 11, the through hole 12 through precompressed steel wire rope 9 is equipped with through position in each precompressed steel wire rope 9, should
Diameter of the aperture of through hole 12 more than the precompressed steel wire rope 9.
Referring to Figure 11 and Figure 12, in above-mentioned backpressure device, described steel wire rope self-locking anchorage 20 is by installing hole 20-1, jaw
20-2 and check bolt 20-3 is constituted, wherein, described installing hole 20-1 sets on the base 3；Described installing hole is by one section of cone
Hole and one section of screwed hole composition, wherein the taper hole is located at the side in fairlead 1, and tip is pointed in the fairlead 1, institute
State side of the screwed hole outside fairlead 1；Described jaw 20-2 is the cone matched with the taper hole, and by 3 lobes
Composition, it is provided with vivo the clamping hole of clamping precompressed steel wire rope 9 along axis；Described check bolt 20-3 and the screwed hole phase
Matching, and it is provided with the circular hole with diameter greater than the diameter of precompressed steel wire rope 9 along axis in vivo；Described jaw 20-2 is arranged on the cone
In hole, check bolt 20-3 is arranged in the screwed hole.
The three-dimensional shock isolation support is assembled by Fig. 7～12, makes the self-corresponding folder in other end of corresponding precompressed steel wire rope 9
Clamping hole in pawl 20-2 bodies and pass in the circular hole of check bolt 20-3.Then the fag end system of the precompressed steel wire rope 9 for exposing
It is connected on traction stretching machine, and monitors the tension force of precompressed steel wire rope 9 using tension detecting instrument while tensioning is drawn.When described
When precompressed steel wire rope 9 is tensioned to tension force needed for default vertical initial stiffness, by turning check bolt 20-3 the jaw is promoted
20-2 clamps precompressed steel wire rope 9 and locked, so as to complex spring 4 is clamped in all the time into floating back-pressure steel plate 11 and pressing plate is driven
Between 7.
This example other implementations other than the above are same as Example 1.
The operation principle of three-dimensional shock isolation support described in this example is same as Example 1, and the public can refer to example 1 and voluntarily analyze.
Example 3
Referring to Figure 13～16, this example has been substantially carried out following improvement on the basis of example 2：(1) will be used as steel wire rope break-in
The U-shaped component 19 of element replaces with fixed pulley 21；(2) described backpressure device is changed accordingly to：
The backpressure device is floated by 20, one piece of the fixed pulley that six roots of sensation precompressed steel wire rope 9, six is only used as steel wire rope break-in element
The lifting bolt 10 of fixed 9 one, the precompressed steel wire rope of dynamic back-pressure steel plate 11, six and six fixed other ends of precompressed steel wire rope 9
Steel wire rope self-locking anchorage 20 is constituted.Wherein,
Floating back-pressure steel plate 11 is located between complex spring 4 and base 3, and moves cooperation with the fairlead 1；
Six fixed pulleys 21 for being only used as steel wire rope break-in element fix the driving around the axisymmetrical of described fairlead 1
Positioned at the lower surface of the surrounding of the complex spring 4 on pressing plate 7；Wherein, described fixed pulley 21 is hinged on support, the support weldering
It is connected on driving pressing plate 7；
Axisymmetrical on the floating back-pressure steel plate 11 around fairlead 1 is provided with six lifting bolts 10, on the base 3
Six steel wire rope self-locking anchorages 20 are correspondingly provided with by the relative position of set six lifting bolts 10 on floating back-pressure steel plate 11；
Six roots of sensation precompressed steel wire rope 9 is distributed in the annular space with broken line state, and, one of each precompressed steel wire rope 9 by
Lifting bolt 10 is fixed on floating back-pressure steel plate 11, and other end passed around the relative fixed pulley as steel wire rope break-in element
Turn back after 21, then the precompressed steel wire rope 9 corresponds to set steel wire on base 3 from by its fixing point on floating back-pressure steel plate 11
The position of rope self-locking anchorage 20 passes through floating back-pressure steel plate 11, is fixed on the base 3 by steel wire rope self-locking anchorage 20；Described is floating
On dynamic back-pressure steel plate 11, the through hole 12 through precompressed steel wire rope 9 is equipped with through position in each precompressed steel wire rope 9, this leads to
Diameter of the aperture in hole 12 more than the precompressed steel wire rope 9.
This example other implementations other than the above are same as Example 2.
The operation principle of three-dimensional shock isolation support described in this example is same as Example 1, and the public can refer to example 1 and voluntarily analyze.
Claims (4)
1. a kind of energy presets the three-dimensional shock isolation support of vertical initial stiffness, and the three-dimensional isolation device includes that what is be sequentially connected in series up and down folds
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 tensile steel wire ropes for being distributed on laminated rubber bearing surrounding；One company of being fixed on of the tensile steel wire rope
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；The fairlead
Inside is coaxially provided with spring, and the top of the spring is provided with driving pressing plate；Under the lower connecting plate of described laminated rubber damping bearing
The middle part on surface is raised to fairlead sunken inside formation one, and the projection is fixedly connected with described driving pressing plate；
Characterized in that,
Described spring is complex spring, and the external diameter of the complex spring forms therebetween one annular less than the internal diameter of fairlead
Space；
Backpressure device is additionally provided with the fairlead of the vertical earthquake isolating bearing；The backpressure device includes the pre- compressed steel of more than three
The cord steel wire rope break-in element equal with precompressed steel wire rope quantity and one block of floating back-pressure steel plate, wherein,
Described floating back-pressure steel plate is located between complex spring and base；
Described steel wire rope break-in element is fixed on described driving pressing plate around the axisymmetrical of described fairlead；
The precompressed steel wire rope is distributed in described annular space with broken line state, and of each precompressed steel wire rope around
The axisymmetrical of described fairlead is fixed on floating back-pressure steel plate, and other end passed around relative steel wire rope break-in unit
Turn back after part, floating back-pressure Interal fixation is then passed through by the fixing point from the precompressed steel wire rope on floating back-pressure steel plate in institute
State on base；On described floating back-pressure steel plate, it is equipped with through precompressed steel wire rope each precompressed steel wire penetrating position
Through hole, the diameter of the aperture of the through hole more than the precompressed steel wire rope；
Described fairlead and drive dynamic cooperation is respectively adopted between pressing plate and floating back-pressure steel plate；
By precompressed steel wire tensioning to tension force needed for vertical initial stiffness is preset, described complex spring is set to be clamped in driving all the time
Between pressing plate and floating back-pressure steel plate；
The tensile steel wire rope is tensioned the precompression provided for laminated rubber bearing equal to design dead load.
2. a kind of energy according to claim 1 presets the three-dimensional shock isolation support of vertical initial stiffness, it is characterised in that described
The other end of the precompressed steel wire rope of vertical earthquake isolating bearing is fixed on base by steel wire rope self-locking anchorage；Described steel wire rope self-locking
Anchorage is made up of installing hole, jaw and check bolt, wherein,
Described installing hole is located on base；Described installing hole is made up of one section of taper hole and one section of screwed hole, wherein the cone
Hole position is pointed in the fairlead in the side by fairlead, and tip, and the screwed hole is located remotely from the opposite side of fairlead；
Described jaw is to match cone with the taper hole, and is made up of 3～5 lobes, and it is pre- that it is provided with clamping along axis in vivo
The clamping hole of compressed steel cord；
Described check bolt matches with the screwed hole, and is provided with diameter greater than corresponding precompressed steel wire rope along axis in vivo
The circular hole of diameter；
Described jaw is arranged in the taper hole, and check bolt is arranged in the screwed hole.
3. a kind of energy according to claim 1 and 2 presets the three-dimensional shock isolation support of vertical initial stiffness, it is characterised in that
Described steel wire rope break-in element is fixed pulley, lifting bolt or U-shaped component.
4. a kind of energy according to claim 1 and 2 presets the three-dimensional shock isolation support of vertical initial stiffness, it is characterised in that
The surface for driving pressing plate relative with floating back-pressure steel plate is equipped with a locating ring, and two of the complex spring is embedded in respectively
In the locating ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610905756.XA CN106593053A (en) | 2016-10-17 | 2016-10-17 | Three-dimensional vibration isolation support seat capable of presetting vertical initial rigidity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610905756.XA CN106593053A (en) | 2016-10-17 | 2016-10-17 | Three-dimensional vibration isolation support seat capable of presetting vertical initial rigidity |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610905756.XA Pending CN106593053A (en) | 2016-10-17 | 2016-10-17 | Three-dimensional vibration isolation support seat capable of presetting vertical initial rigidity |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109138174A (en) * | 2018-09-28 | 2019-01-04 | 佛山科学技术学院 | A kind of suspension type energy consumption shock isolating pedestal |
| CN109183855A (en) * | 2018-08-22 | 2019-01-11 | 筑梦高科建筑有限公司 | A kind of isolation structure |
| WO2023129074A1 (en) * | 2021-12-30 | 2023-07-06 | Bogazici Universitesi | Horizontal vibration isolation system with multi-tensioning wires having quasi-zero adjustable stiffness in three axes |
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