CN106400976B - A kind of antidumping disk spring three-dimensional shock isolation support - Google Patents

A kind of antidumping disk spring three-dimensional shock isolation support Download PDF

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Publication number
CN106400976B
CN106400976B CN201610965525.8A CN201610965525A CN106400976B CN 106400976 B CN106400976 B CN 106400976B CN 201610965525 A CN201610965525 A CN 201610965525A CN 106400976 B CN106400976 B CN 106400976B
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disk spring
plate
pull rod
pressure type
rod
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CN106400976A (en
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汪大洋
张永山
朱勇
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Guangzhou University
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Guangzhou University
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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
    • E04B1/36Bearings or like supports allowing movement
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate
    • E04H9/02Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate withstanding earthquake or sinking of ground
    • E04H9/021Bearing, supporting or connecting constructions specially adapted for such buildings

Abstract

The present invention relates to a kind of antidumping disk spring three-dimensional shock isolation supports, the bearing includes the upper junction plate being mutually parallel, lower connecting plate and is located at four inclined pull rod back pressure type disk spring dampers and four vertical pull rod back pressure type disk spring dampers between upper junction plate and lower connecting plate, is linked together respectively by universal ball end between the connecting rod and upper junction plate and lower connecting plate at each pull rod back pressure type disk spring damper both ends;Wherein, the truncated rectangular pyramids shape of a two opposite side surfaces respectively symmetrically is collectively formed in the axis of line and four inclined pull rod back pressure type disk spring dampers of the described four inclined pull rod back pressure type disk spring dampers on being vertically connected with plate between tie point;A rectangular hexahedron is collectively formed in the axis that four vertical pull rod back pressure type disk spring damper upper junction plates are vertically connected on plate line and four vertical pull rod back pressure type disk spring dampers between tie point.This bearing can realize real three-dimensional isolation.

Description

A kind of antidumping disk spring three-dimensional shock isolation support
Technical field
The present invention relates to a kind of building vibration proof (or vibrations) devices, and in particular to three-dimensional isolation device.
Background technology
Three-dimensional isolation device is a kind of shockproof isolating device being located between building and basis, can effectively be inhaled from various dimensions Receive, dissipate externally input energy, to achieve the purpose that protect building safety.Three-dimensional isolation device is usually by vertical earthquake isolating Bearing and horizontal seismic isolation bearing are composed, and the two absorbs both vertically and horizontally seismic wave respectively.
It is well known that technological progress of the development of three-dimensional isolation device dependent on damper.Currently, really entering practical application The damper of mainstream mainly have a three categories, i.e. laminated rubber damper, metal spring damper (mainly disk spring and spiral shell Revolve spring) and viscoelastic damper (larger static load cannot be undertaken).Therefore, on the existing three-dimensional shock isolation support overwhelming majority is all The combination of damper is stated, and is essentially all that laminated rubber damper is connected up and down with metal spring damper.In order to overcome Laminated rubber tensile capacity is weak, disk spring cannot be drawn and helical spring initial stiffness is low and stretches different from compression property Disadvantage has some three-dimensional shock isolation supports to be additionally arranged tensile structure (such as adding steel wire rope in surrounding) in laminated rubber damper, There are also three-dimensional shock isolation supports by metal spring damper and viscoelastic damper (or other Stretch materials, such as diamond shape steel Plate etc.) it is compound, static load and compression shock absorption are undertaken using metal spring damper, is stretched using viscoelastic damper, compression is consumed energy. But the damper that a variety of elastic elements are compound, it is not only complicated, and while designing need to consider horizontal and vertical association journey Degree calculates sufficiently complex.
A kind of three-dimemsional vibration insulationg system, the system disclosed in the patent application of Publication No. CN1560395A are common Tandem compound disk spring and the viscoelastic damping being located in disk spring guiding axis centre bore on lead for retractable pencil laminated rubber vibrating isolating device What device was realized.But since the damping characteristic difference of viscoelastic material and disk spring is larger, and the correlation degree of the two has Much, these will all be determined by testing;Especially, when the three-dimemsional vibration insulationg system is by being pressed to tension transition, Although disk spring does not work, the energy stored by disk spring can be added on viscoelastic damper, make viscoplasticity Damper obtains larger initial acceleration, and viscoelastic damper is then a kind of velocity sensitization type damper, it is clear that dish-shaped bullet Influence of the energy to viscoelastic damper stored by spring can not be ignored, and how the influence will calculate, then is a difficulty Thing.For another example a kind of three-dimensional isolation device disclosed in the patent application of Publication No. CN101761147A, the device are pressed to When tension transition, wherein the energy of six disk springs storage can be also transmitted on rhombic steel plate damper by screw rod, equally The problem of there is also design dyscalculias.In addition, the sliding block, rail plate in the scheme of CN101761147A patent applications and height The Horizontal limiting and stretch-proof organization that rope is constituted are haled, design dyscalculia is not only made, but also also adds entire shock isolation system Complexity.
Invention content
Technical problem to be solved by the invention is to provide a kind of antidumping disk spring three-dimensional shock isolation support, the three-dimensional every Bearing is shaken only with a kind of damper, is not only simple in structure, and can antidumping.
The present invention solve above-mentioned technical problem technical solution be:
A kind of antidumping disk spring three-dimensional shock isolation support, the bearing include the upper junction plate being mutually parallel, lower connecting plate And it is located between upper junction plate and lower connecting plate that be equipped with four inclined pull rod back pressure type disk spring dampers and four vertical Pull rod back pressure type disk spring damper, the connecting rod and upper junction plate at each pull rod back pressure type disk spring damper both ends It is linked together respectively by universal ball end between lower connecting plate;Wherein, described four inclined pull rod back pressure type dish bullets Line of the spring damper on upper junction plate between tie point and the line on lower connecting plate between tie point incline with four The truncated rectangular pyramids shape of a two opposite side surfaces respectively symmetrically is collectively formed in the axis of oblique pull rod back pressure type disk spring damper;Institute Line of the four vertical pull rod back pressure type disk spring dampers stated on upper junction plate between tie point and in lower company A square is collectively formed in the axis of line and four vertical pull rod back pressure type disk spring dampers on fishplate bar between tie point Shape hexahedron;The vertical central axes of the truncated rectangular pyramids shape are conllinear with the central axes of the rectangular hexahedron;
The pull rod back pressure type disk spring damper includes a guide sleeve, and one of the guide sleeve is equipped with first end Lid, other end are equipped with second end cover;It is coaxially provided in the guide sleeve and the disk spring formed is overlapped by one group of disk spring Group, for a drive member by being put on the outside of first end cover in the guide sleeve, which includes dynamic pressure plate and connecting rod, The wherein described dynamic pressure plate is located at the head of disk spring group, and the connecting rod is located at the extension of the axis on dynamic pressure plate and along guide sleeve Go out guide sleeve, end is equipped with bulb;The outer surface of the second end cover is equipped with another connecting rod, the connecting rod and drive member In connecting rod it is coaxial, and end be equipped with another bulb;
Be additionally provided with backpressure device in the guide sleeve, the backpressure device include quantity be at least respectively two groups of three it is pre- Press pull rod and two pieces of floating platens, wherein
Two pieces of floating platens, one piece is located between the dynamic pressure plate and disk spring group, and another piece is located at second Between end cap and disk spring group;
Two groups of precompressed pull rods are distributed in the centre bore of the disk spring group rotating around the axisymmetrical of guide sleeve It is interior, and, one of each precompressed pull rod is fixed on the floating platen adjacent with dynamic pressure plate in one group of precompressed pull rod, other end It is fixed on a limit element across the floating platen and second end cover adjacent with second end cover;It is each in another group of precompressed pull rod One of root precompressed pull rod is fixed on the floating platen adjacent with second end cover, and other end passes through the floating adjacent with dynamic pressure plate Pressing plate and dynamic pressure plate are fixed on another limit element;
The limit element is respectively acting on the dynamic pressure plate and second end cover, by two groups of precompressed pull rods by institute The distance between two pieces of floating platens stated are limited to length when disk spring group is compressed to default rigidity.
For ease of adjusting the distance between two pieces of floating platens, make it equal to disk spring group being compressed to default rigidity Length, the limit element described in said program are hexagonal flange nut, and the precompressed pull rod is polished rod bolt, the two screw thread It has been fastened on.
It is described in said program in order to avoid generating rigid impact between limit element and dynamic pressure plate and second end cover It is embedded with elastic polymer material, such as sheet rubber respectively on the surface that dynamic pressure plate and second end cover are contacted with limit element.
In said program, the angle between four inclined pull rod back pressure type disk spring dampers and lower connecting plate The dead load and preset earthquake intensity that can be undertaken according to entire bearing are selected.
Damping device of the present invention has the advantages that:
(1) axial force born by each pull rod back pressure type disk spring damper is either positive or anti- To disk spring group can generate elastic compression deformation and consume energy, therefore three-dimensional shock isolation support of the present invention can be isolator Horizontal direction component, vertical component and the torsional component of seismic wave, and then realize three-dimensional isolation truly.
(2) entire bearing is mainly by two pieces of connecting plates and the identical pull rod back pressure type disk spring damper group of eight structures At not only structure is simple and direct, and the transfer route of power is clear, clear, greatly reduces design difficulty in computation.
(3) length for changing precompressed pull rod is that the initial stiffness of each pull rod back pressure type disk spring damper can be changed, Therefore the initial stiffness of each damper can be calculated according to each bearing static load to be undertaken, and then ensures withdrawing support The vertical displacement of building is small afterwards, or even does not generate vertical displacement.It can be seen that three-dimensional shock isolation support of the present invention had both been suitble to newly The building shock insulation built, also is adapted for the shock-insulating reconstruction of existing building.
(4) it can not only realize three-dimensional isolation truly, but also have the function of antidumping.
Description of the drawings
Fig. 1~4 are the structural schematic diagram of a specific embodiment of bearing of the present invention, wherein Fig. 1 is front view, Fig. 2 is left view, and Fig. 3 vertical views (removal upper junction plate), Fig. 4 is the enlarged drawing of part I in Fig. 1.
Fig. 5~9 are the structural schematic diagram of pull rod back pressure type disk spring damper in the illustrated embodiments of Fig. 1~4, wherein Fig. 5 is front view (section view), and Fig. 6 is A-A sectional views of Fig. 5, and Fig. 7 is B-B sectional views of Fig. 5, and Fig. 8 is part II in Fig. 5 Enlarged drawing, Fig. 9 be Fig. 5 in part III enlarged drawing.
Specific implementation mode
Referring to Fig. 1~4, the three-dimensional shock isolation support in this example includes the upper junction plate 1 being mutually parallel, lower connecting plate 2 and sets It is vertical to be equipped between upper junction plate 1 and lower connecting plate 2 four inclined pull rod back pressure type disk spring dampers 3 and four Pull rod back pressure type disk spring damper 3;The connecting rod 3-1 at each 3 both ends of pull rod back pressure type disk spring damper and upper company It is linked together respectively by universal ball end between fishplate bar 1 and lower connecting plate 2;Wherein, described four inclined pull rod back pressure types Line of the disk spring damper 3 on upper junction plate 1 between tie point and the line on lower connecting plate 2 between tie point A two opposite side surfaces are being collectively formed respectively symmetrically just with the axis of four inclined pull rod back pressure type disk spring dampers 3 Truncated rectangular pyramids shape (as shown in the two-dot chain line in Fig. 3);Four vertical pull rod back pressure type disk spring dampers 3 are upper Line on connecting plate 1 between tie point and the line on lower connecting plate 2 between tie point and four vertical pull rods are anti- Rectangular hexahedron that a cross section is square is collectively formed (such as the dotted line institute in Fig. 3 in the axis of pressure type disk spring damper 3 Show);The vertical central axes of the truncated rectangular pyramids shape are conllinear with the central axes of the rectangular hexahedron.In this example, described four The tie point of vertical pull rod back pressure type disk spring damper 3 and lower connecting plate 2 is located at the positive truncated rectangular pyramids bottom surface four The midpoint on side, the angle between four inclined pull rod back pressure type disk spring dampers 3 and lower connecting plate 2 is 70 °.
The connecting rod 3-1 at above-mentioned eight pull rods back pressure type disk spring damper, 3 both ends and upper junction plate 1 and lower connecting plate Universal ball head connecting structure between 2 is identical, is connected below with a universal ball end between connecting rod 3-1 and lower connecting plate 2 It is described for structure.Referring to Fig. 1 and Fig. 4, the connecting rod 3-1 of above-mentioned 3 following of pull rod back pressure type disk spring damper with Universal ball head connecting structure between lower connecting plate 2 includes ball-and-socket, pull rod back pressure type disk spring damper on lower connecting plate 2 The bulb 3-2 and cover board 4 of 3 followings, wherein the middle part of the cover board 4 is equipped with sphere hole, the damping of pull rod back pressure type disk spring The bulb 3-2 of 3 following of device is buckled in by the sphere hole in the ball-and-socket on connecting plate 2, and cover board 4 is fixed on lower connection by four bolts 5 On plate 2.The inner wall of the sphere hole is equipped with annular groove, sealing ring 6 is equipped in slot, to avoid in universal ball head connecting structure Lubricant leak out.
Referring to Fig. 5~9, the pull rod back pressure type disk spring damper 3 in above-mentioned three-dimensional shock isolation support includes a guide sleeve The top of 3-3, guide sleeve 3-3 are equipped with first end cover 3-4, and following is equipped with second end cover 3-5;It is same in the guide sleeve 3-3 Axis is equipped with overlaps the disk spring group 3-6 formed by one group of disk spring, and a drive member on the outside of first end cover 3-4 by putting in In the guide sleeve 3-3, which includes dynamic pressure plate 3-7 and connecting rod 3-1, and wherein dynamic pressure plate 3-7 is located at dish-shaped bullet The head of spring group 3-6, connecting rod 3-1 are located on dynamic pressure plate 3-7 and extend guide sleeve 3-3, end along the axis of guide sleeve 3-3 Equipped with bulb 3-2;The outer surface of the second end cover 3-5 is equipped with another connecting rod 3-1, in the connecting rod and drive member Connecting rod 3-1 is coaxial, and end is equipped with another bulb 3-2.For the ease of assembly, between the bulb 3-2 and connecting rod 3-1 It is linked together using being screwed.
Referring to Fig. 5~9, it is additionally provided with backpressure device in the guide sleeve 3-3, which includes eight and be used as precompressed The polished rod bolt 3-8 of pull rod and two pieces of floating platen 3-9, it is two groups, every group four that described eight polished rod bolt 3-8, which are divided to,.
Referring to Fig. 5, two pieces of floating platen 3-9, one piece is located between the dynamic pressure plate 3-7 and disk spring group 3-6, another Block is located between second end cover 3-5 and disk spring group 3-6.
Referring to Fig. 5~9, two groups of polished rod bolt 3-8 are distributed in disk spring rotating around the axisymmetrical of guide sleeve 3-3 In the centre bore of group 3-6, and, there is each polished rod bolt 3-8 one of head of a nail 3-11 to wear simultaneously in one group of polished rod bolt 3-8 It is weldingly fixed on the floating platen 3-9 adjacent with dynamic pressure plate 3-7, there is externally threaded nail rod to pass through and second end cover 3- on head 5 adjacent floating platen 3-9 and second end cover 3-5 threaded connections are fixed on a hexagonal flange nut 3-10 as limit element On;There is one of the head of a nail to wear and be weldingly fixed on and second end by each polished rod bolt 3-8 in another group of polished rod bolt 3-8 It covers on the adjacent floating platen 3-9 of 3-5, other end passes through the floating platen 3-9 adjacent with dynamic pressure plate 3-7 and dynamic pressure plate 3-7 spiral shells Line is fastened on another hexagonal flange nut 3-10 as limit element.
Referring to Fig. 8 and Fig. 5 is combined, in order to avoid between hexagonal flange nut 3-10 and dynamic pressure plate 3-7 and second end cover 3-5 Rigid impact is generated, it is embedding respectively on the surface that the dynamic pressure plate 3-7 and second end cover 3-5 are contacted with hexagonal flange nut 3-10 Equipped with sheet rubber 3-12.
Referring to Fig. 5~9, when assembly or in-site installation, turning hexagonal flange nut 3-10, so that it is respectively acting on described On dynamic pressure plate 3-7 and second end cover 3-5, the distance between two pieces of floating platen 3-9 are limited to by two groups of polished rod bolt 3-8 Disk spring group 3-6 is compressed to length when default rigidity.Although two pieces of floating platen 3-9 and disk spring group 3-6 are respectively positioned on It is inconvenient in guide sleeve 3-3 directly to measure, but the overhang of measurable polished rod bolt 3-8 is extrapolated between two pieces of floating platen 3-9 Distance.
Referring to Fig. 1 and Fig. 8 and Fig. 5 is combined, hexagonal flange nut 3-10 is in the vibration processes that earthquake generates in order to prevent It loosens, hexagonal flange nut 3-10 and polished rod bolt 3-8 can be welded together after debugging is good.
Referring to Fig. 5, when pull rod back pressure type disk spring damper 3 is by axial external load, no matter external load is Pressure or pulling force, as long as it is less than above-mentioned precompression, disk spring group 3-6 will not continue to deformation.Work as external load When more than the precompression, if external load is pressure, the dynamic pressure plate 3-7 pushes floating platen 3-9 compressions adjacent thereto Disk spring group 3-6 generates flexible deformation energy consumption;If external load is pulling force, two groups of precompressed steel wire ropes 3-8 is pulled respectively Two pieces of floating platen 3-9 compression disk spring groups 3-6 generate flexible deformation energy consumption.
Referring to Fig. 1 and Fig. 3, it is assumed that upper junction plate 1 is fixed on building, on the basis of lower connecting plate 2 is fixed on, that , if seismic wave generates a horizontal thrust from left to right, lower connecting plate 2 just moves right, four inclined pull rod back-pressures Formula disk spring damper 3 is then rotated counterclockwise rotating around the bulb 3-2 on top, and two on the right side of three-dimensional shock isolation support are inclined Pull rod back pressure type disk spring damper 3 is compressed, two inclined pull rod back pressure type disk spring dampers 3 in left side then by It stretches;If seismic wave generates a downward pulling force, eight pull rod back pressure type disk spring dampers 3 are stretched simultaneously;If Seismic wave generates a rotating torque (either clockwise or counterclockwise), eight pull rod back pressure type disk spring dampers 3 It is stretched simultaneously;Similarly, if building topples toward side, it is located at three pull rod back pressure type disk spring dampers of side 3 are stretched, and three pull rod back pressure type disk spring dampers 3 positioned at the opposite other side are compressed.Three-dimensional of the present invention The operation principle public of other stresses of shock isolating pedestal can voluntarily analyze.
As seen from the above analysis, three-dimensional shock isolation support of the present invention can not only realize three-dimensional isolation truly, But also has the function of antidumping.

Claims (3)

1. a kind of antidumping disk spring three-dimensional shock isolation support, the bearing include the upper junction plate being mutually parallel, lower connecting plate and It is located at that four inclined pull rod back pressure type disk spring dampers and four are equipped between upper junction plate and lower connecting plate is vertical Pull rod back pressure type disk spring damper, the connecting rod at each pull rod back pressure type disk spring damper both ends and upper junction plate and It is linked together respectively by universal ball end between lower connecting plate;Wherein, described four inclined pull rod back pressure type disk springs Line of the damper on upper junction plate between tie point and the line on lower connecting plate between tie point and four inclinations The axis of pull rod back pressure type disk spring damper the truncated rectangular pyramids shape of a two opposite side surfaces respectively symmetrically is collectively formed;It is described Line of four vertical pull rod back pressure type disk spring dampers on upper junction plate between tie point and in lower connection A rectangle is collectively formed in the axis of line and four vertical pull rod back pressure type disk spring dampers on plate between tie point Hexahedron;The vertical central axes of the truncated rectangular pyramids shape are conllinear with the central axes of the rectangular hexahedron;
The pull rod back pressure type disk spring damper includes a guide sleeve, and one of the guide sleeve is equipped with first end cover, separately One is equipped with second end cover;It is coaxially provided in the guide sleeve and the disk spring group formed is overlapped by one group of disk spring, one For drive member by being put on the outside of first end cover in the guide sleeve, which includes dynamic pressure plate and connecting rod, wherein The dynamic pressure plate is located at the head of disk spring group, and the connecting rod is located on dynamic pressure plate and extends along the axis of guide sleeve and leads To set, end is equipped with bulb;The outer surface of the second end cover is equipped with another connecting rod, in the connecting rod and drive member Connecting rod is coaxial, and end is equipped with another bulb;
It is additionally provided with backpressure device in the guide sleeve, which includes two groups of precompressed drawing that quantity is at least three respectively Bar and two pieces of floating platens, wherein
Two pieces of floating platens, one piece is located between the dynamic pressure plate and disk spring group, and another piece is located at second end cover Between disk spring group;
Two groups of precompressed pull rods are distributed in rotating around the axisymmetrical of guide sleeve in the centre bore of the disk spring group, And in one group of precompressed pull rod one of each precompressed pull rod be fixed on the floating platen adjacent with dynamic pressure plate, other end is worn It crosses the floating platen adjacent with second end cover and second end cover is fixed on a limit element;Each in another group of precompressed pull rod One of precompressed pull rod is fixed on the floating platen adjacent with second end cover, and other end passes through the floating pressure adjacent with dynamic pressure plate Plate and dynamic pressure plate are fixed on another limit element;
The limit element is respectively acting on the dynamic pressure plate and second end cover, will be described by two groups of precompressed pull rods The distance between two pieces of floating platens are limited to length when disk spring group is compressed to default rigidity.
2. a kind of antidumping disk spring three-dimensional shock isolation support according to claim 1, which is characterized in that the limit Element is hexagonal flange nut, and the precompressed pull rod is polished rod bolt, and the two threaded connection is fixed together.
3. a kind of antidumping disk spring three-dimensional shock isolation support according to claim 1, which is characterized in that the dynamic pressure It is embedded with elastic polymer material respectively on the surface that plate and second end cover are contacted with limit element.
CN201610965525.8A 2016-11-01 2016-11-01 A kind of antidumping disk spring three-dimensional shock isolation support Active CN106400976B (en)

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Publication number Priority date Publication date Assignee Title
CN106968499B (en) * 2017-03-09 2019-06-25 上海大学 A kind of horizontal direction negative stiffness device of subsidiary vertical shock-absorbing function
CN112700706B (en) * 2021-03-25 2021-06-25 西南交通大学 Test device for simulating fault dislocation and seismic coupling effect

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* Cited by examiner, † Cited by third party
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JP3341030B2 (en) * 1992-04-14 2002-11-05 株式会社竹中工務店 Three-dimensional seismic isolation device for seismic isolation floor
CN100353012C (en) * 2004-03-04 2007-12-05 华中科技大学 Three-dimemsional vibration insulationg system
CN2905932Y (en) * 2006-04-14 2007-05-30 北京工业大学 Horizontal-vertical composite shock-insulation device
CN101761147B (en) * 2010-01-28 2011-05-04 大连理工大学 Three-dimensional isolation device
CN202767242U (en) * 2012-10-10 2013-03-06 衡水震泰隔震器材有限公司 Three-direction shock insulation support

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