CN106639456A - Back pressure disc-shaped spring damper with adjustable rigidity - Google Patents
Back pressure disc-shaped spring damper with adjustable rigidity Download PDFInfo
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- CN106639456A CN106639456A CN201610905603.5A CN201610905603A CN106639456A CN 106639456 A CN106639456 A CN 106639456A CN 201610905603 A CN201610905603 A CN 201610905603A CN 106639456 A CN106639456 A CN 106639456A
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- steel wire
- wire rope
- pressure
- steel plate
- precompressed
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- 210000001847 Jaw Anatomy 0.000 claims description 26
- 238000007906 compression Methods 0.000 claims description 21
- 230000000694 effects Effects 0.000 claims description 12
- 208000004141 Microcephaly Diseases 0.000 claims description 9
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- 239000000203 mixture Substances 0.000 claims description 6
- 230000000149 penetrating Effects 0.000 claims description 2
- 230000000875 corresponding Effects 0.000 abstract 1
- 238000011068 load Methods 0.000 description 20
- 230000001681 protective Effects 0.000 description 9
- 230000035939 shock Effects 0.000 description 5
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- 230000021715 photosynthesis, light harvesting Effects 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229910000576 Laminated steel Inorganic materials 0.000 description 1
- 210000000282 Nails Anatomy 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000002457 bidirectional Effects 0.000 description 1
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- 150000001875 compounds Chemical group 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
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- 230000005284 excitation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
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- 230000001131 transforming Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate
- E04H9/02—Buildings, 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
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
Abstract
The invention relates to a back pressure disc-shaped spring damper with the adjustable rigidity. The back pressure disc-shaped spring damper is characterized in that a back pressure device is arranged between two end plates and comprises more than three pre-pressed steel wire ropes, a floating back pressure steel plate, steel wire rope turning elements with the number being equal to that of the pre-pressed steel wire ropes, and steel wire rope self-locking tensioning anchors with the number being equal to that of the pre-pressed steel wire ropes; the pre-pressed steel wire ropes are distributed on the periphery of the disc-shaped spring set in a folded line state; one ends of the pre-pressed steel wire ropes are symmetrically fixed to the floating back pressure steel plate around the axis of a guide rod, and the other ends of the pre-pressed steel wire ropes pass through the corresponding steel wire rope turning elements and turn back, penetrate through the floating back pressure steel plate from the portions beside fixing points, on the floating back pressure steel plate, of the pre-pressed steel wire ropes, and are anchored to the end plate adjacent to the floating back pressure steel plate through the steel wire rope self-locking tensioning anchors; and the tension needed for tensioning the pre-pressed steel wire ropes to the preset initial rigidity enables the disc-shaped spring set to be clamped between the end plate away from the floating back pressure steel plate, and the floating back pressure steel plate all the time.
Description
Technical field
The present invention relates to a kind of building vibration proof (or vibrations) device, and in particular to the damping unit of butterfly spring.
Background technology
Antivibrator is to provide the resistance of motion, the device of depletion kinergety.From after nineteen seventies, damping
Device is progressively converted in the Structural Engineerings such as building, bridge, railway from space flight, aviation, military project, firearms, automobile and other industries.Dish-shaped bullet
Spring (also referred to as tab (s) spring) due to load with deformation in non-linear relation variation rigidity characteristic, therefore be widely used in every
In the devices such as shake, damping.A kind of stage clip of disk spring, generally singly can only be independently operated, also many be superimposed on and used.But
It is that many butterfly springs being superimposed on can only operate in compressive state.Therefore, wind resistance and earthquake-resistant antivibrator are currently used for
Two groups of disk springs are at least used, or it is compound with other types of antivibrator (such as viscoelastic damper).But, it is this to make
Many negative problems can be produced with multigroup disk spring or the method being combined with other types of antivibrator, such as：1st, damp
The stretching of device is asymmetric with the damping characteristic of compression, affects shock insulation, damping effect；2nd, volume is big, cannot install in small space；
3rd, complex structure, production is difficult, high cost；Etc..
The patent application of Publication No. CN 1067948A discloses a kind of " combined shock isolating unit ", and the isolator includes
The disk spring antivibrator (referring to Fig. 2 of this application) of one multi-disc disc spring film overlapping composition, the antivibrator " utilizes dish-like bullet
The space asked in spring, installs in flexible cable back-pressure dress (3).One end of flexible cable backpressure device (3) is fixed on into guide cylinder annular entity
(8) on, and annular entity (8) is fixed on lid (4), and its other end is fixed on dish-shaped bullet Huang seat (6), dish-shaped bullet Huang seat
(6) it is fixed on lower cover (5).(flexible cable formula backpressure device also may be installed any position for being available for installing in combined shock isolating unit
Put.) flexible cable formula backpressure device effect be when resilience after moving object punching press isolated component, play amplitude limit and accelerate decay
Effect." from above description and Fig. 2 of this application, wherein described " effect of amplitude limit and acceleration decay " essence is exactly
Amplitude limit is acted on, that is, prevent the amplitude of resilience after moving object punching press isolated component excessive.But the effect of seismic wave in it is multidirectional with
Machine, that is, the size direction and frequency for acting on power on building is all random, thus be accordingly used in earthquake-resistant antivibrator then by
Following two requirements：One is that the characteristic frequency of antivibrator will stagger with the resonance frequency domain of Seismic input excitation, and two is antivibrator
Characteristic frequency will stagger with building or the characteristic frequency of building structure.According to《Butterfly spring fundamental characteristics Parameter analysis》Author
The theory analysis of Yi Xianzhong, the natural frequency of vibration of monolithic butterfly spring(in formula, KpFor rigidity, msFor butterfly bullet
The quality of spring, m is the quality of object of being connected with butterfly spring, and ξ is equivalent quality transformation ratio) [see,《Petroleum machinery》Magazine,
The phase the 10th of volume 23 the 3rd nineteen ninety-five to wait page 22] visible, the quality of the object that is connected when the quality of butterfly spring and with butterfly spring
After design determines, the butterfly spring natural frequency of vibration square is directly proportional to upper butterfly spring rigidity.Accordingly, Publication No. CN
The disk spring antivibrator of the multi-disc disc spring film overlapping composition described in the patent application of 1067948A, once its overall structure
Determine with the structural parameters of each parts (such as disk spring), just cannot be initial just by default or regulation in assembling process
Spend to change its characteristic frequency, hence it is evident that there is the choosing of the structural parameters of the material, overall structure and each parts of disk spring
Difficult design, the amount of calculation technical barrier for being difficult to overcome such as big is selected, production cost is undoubtedly increased considerably.
Additionally, in antiseismic engineering, the early stage rigidity of antivibrator is for wind load resistance, the anti-earthquake less than design seismic intensity
With reduce construction costs for be also highly important.And the multi-disc dish described in the patent application of Publication No. CN 1067948A
The early stage rigidity of the disk spring antivibrator of shape spring leaf overlapping composition is low, and non-adjustable default, also non-adjustable, so if
It is designed as the anti-seismic damper device of anti-middle highlight lines, it is clear that the not effect with wind load resistance and anti-low earthquake intensity earthquake.
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 is adopted and is located at the differential attachment adjusting set being made up of left and right spin nut in the middle part of load connecting rod in load company
The decrement of two groups of disk springs of extension bar, and then adjust the damped coefficient of disk spring.Due to disclosed in the application for a patent for invention
Scheme adjusted using described differential attachment and adjust simultaneously the decrement of two groups of disk springs, therefore cannot preset it is initial just
Degree.Because the antivibrator is in poised state in the case of external power-free, now, either in load connecting rod still solid
Determine to apply on otic placode some external force and will break the initial stiffness of balance, i.e. antivibrator to be equal to zero.Therefore, if by the antivibrator
For wind damage resisting or earthquake disaster, building is produced and rocked under the influence of little wind or low earthquake intensity earthquake, and reduces habitant
Quality of life.
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 a kind of adjustable back-pressure butterfly spring antivibrator of rigidity, the damping
Device not only maintains effective active length of butterfly spring group, and both compressible passive energy dissipations, and stretchable passive energy dissipation.
The present invention solves the technical scheme of above-mentioned technical problem：
A kind of adjustable back-pressure butterfly spring antivibrator of rigidity, the antivibrator includes two end plates, described two end plates
Between be provided with disk spring group, one of end plate is provided with guide post, centre bore of the guide post along the disk spring group
Pass another end plate；Described disk spring group is made up of one group of disk spring overlapping；Characterized in that,
Be additionally provided with backpressure device between described two end plates, the backpressure device include more than three precompressed steel wire rope,
The steel wire rope break-in element equal with the precompressed steel wire rope quantity steel wire rope self-locking tensioning anchorage equal with precompressed steel wire rope quantity
With one block of floating back-pressure steel plate, wherein,
Described floating back-pressure steel plate is set on the guide post between disk spring group and one piece of end plate；
Described steel wire rope break-in element is held away from floating back-pressure steel plate around the axisymmetrical of described guide post
On end plate；
Described steel wire rope self-locking is tensioned anchorage by the first self-centering locking fixture, the second self-centering locking fixture, anti-torsion
Compression spring and plane bearing are constituted, 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 is 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 the second self-centering locking fixture described in) has a tapered sleeve, and the internal of the tapered sleeve is sequentially provided with by 3-5 along axis
The second taper jaw and hollow bolt of claw piece composition, wherein, the head of described hollow bolt and the second taper jaw
Major part is relative, and the outer peripheral face of the tapered sleeve is regular hexagon；
C the plane bearing described in) is 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 matches 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
It is 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- compression spring of turning round is located in the endoporus of tensioning swivel nut；Pressure is turned round when Jing is anti-between calvus of the precompressed steel wire rope by the first taper jaw
After passing between the calvus of the centre bore and the second taper jaw of contracting spring and plane bearing, in the effect of precompressed steel wire rope tension
Under, anti-turn round compression spring one is acted on the first taper jaw, and other end is acted on tapered sleeve；
Described precompressed steel wire rope is distributed in the surrounding of the disk spring group, and each pre- steel wire with broken line state
One axisymmetrical around described guide post of rope is fixed on floating back-pressure steel plate, and other end passed around a relative steel
Turn back after cord break-in element, floating back-pressure steel is then passed through by the fixing point from the precompressed steel wire rope on floating back-pressure steel plate
Plate, is anchored on the end plate adjacent with floating back-pressure steel plate by steel wire rope self-locking tensioning anchorage；
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 aperture of the through hole is more than the diameter of the precompressed steel wire rope；
By the precompressed steel wire tensioning to tension force needed for default initial stiffness, described disk spring group is set to clamp all the time
Between the end plate away from floating back-pressure steel plate and floating back-pressure steel plate.
The operation principle of above-mentioned back-pressure disk spring antivibrator is as follows：When dynamic loading is along the relative effect of axis of fairlead
When, disk spring group is compressed downwards away from the end plate of floating back-pressure steel plate；When dynamic loading is acted on opposite to each other along the axis of fairlead,
Precompressed steel wire rope is reversely sling floating back-pressure steel plate compression disk spring group by steel wire rope break-in element.As can be seen here, axially
No matter relative dynamic loading is or acts on back-pressure disk spring antivibrator opposite to each other, can compress disk spring group so as to occur
Elastic deformation and consume 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.
Back-pressure disk spring antivibrator of the present invention, can be widely used for machinery and building field, e.g., in plant equipment
Isolation, equipment Foundations shock insulation, the seismic hardening of building structure, antidetonation of heavy construction of portion's vibration etc..
The adjustable back-pressure disk spring antivibrator of rigidity of the present invention has the effect that compared with prior art：
(1) external force is applied along axis, no matter the external force is pressure or pulling force, and described disk spring group can produce bullet
Property compression and consume energy, overcome classical dish-like shapes spring-damper can only compression power consumption shortcoming；
(2) after defensive ability/resistance ability of the dynamic loading more than antivibrator default initial stiffness, back-pressure disk spring of the present invention
The deformation of antivibrator bidirectional elastic is symmetrical, therefore the effect of its compression power consumption is not affected because of the change of the positive negative direction of external applied load
Really, it is that the Design of Reinforcement such as building structure wind load resistance are provided convenience condition；
(3) initial stiffness of whole antivibrator can be changed as long as changing the length of steel wire rope, therefore is used building
Vertical earthquake isolating when, predeterminable earthquake intensity significantly reduces shock insulation cost；
(4) only two kinds of working conditions of stretching and compression are may be implemented in a disk spring group, significantly shorten damping
The length of device.
(5) length for presetting the precompressed steel wire rope is predeterminable antivibrator initial stiffness, and the disk spring group
In it is constant without the failure of disk spring, i.e., effective active length, the original characterisitic parameter of disk spring group will not be changed.
(6) using steel wire rope self-locking tensioning anchorage one of steel wire rope is fixed on end plate, one be can be to pre- steel wire
The length of rope is adjusted, it is ensured that the equalization of strain of all precompressed steel wire ropes, and two are made by oneself using anti-torsion compression spring and first
The synergy of heart locking fixture, can effectively prevent precompressed steel wire rope from twisting during length adjustment is carried out and change steel wire
The characterisitic parameter of drag-line.
Description of the drawings
Fig. 1～4 are the structural representation of a specific embodiment of back-pressure disk spring antivibrator of the present invention, its
In, Fig. 1 is front view (half-sectional), and Fig. 2 is A-A sectional views (omitting precompressed steel wire rope and protective jacket) of Fig. 1, and Fig. 3 is Fig. 1's
B-B sectional views (omit precompressed steel wire rope and protective jacket), and Fig. 4 is C-C cutaway view Amplified images in Fig. 1.
Fig. 5～9 are a tool of the anchorage of steel wire rope self-locking tensioning described in back-pressure disk spring antivibrator of the present invention
The structural representation of body embodiment, wherein, Fig. 5 is front view (half-sectional), and dotted line represents precompressed steel wire rope in figure, and Fig. 6 is to look up
Figure, Fig. 7 is D-D profiles of Fig. 5, and Fig. 8 is E-E profiles of Fig. 5, and Fig. 9 is F-F sectional views of Fig. 5.
Figure 10～13 are the structural representation of second specific embodiment of back-pressure disk spring antivibrator of the present invention,
Wherein, Figure 10 is front view (half-sectional), Figure 11 for Figure 10 G-G sectional views (omit precompressed steel wire rope and protective jacket), Tu12Wei
H-H sectional views (omitting precompressed steel wire rope and protective jacket) of Figure 10, Figure 13 is the schematic enlarged-scale view of Figure 10 local I.
Figure 14～18 are the structural representation of the 3rd specific embodiment of back-pressure disk spring antivibrator of the present invention,
Wherein, Figure 14 is front view (half-sectional), Figure 15 for Figure 14 I-I sectional views (omit precompressed steel wire rope and protective jacket), Tu16Wei
J-J sectional views (omitting precompressed steel wire rope and protective jacket) of Figure 14, Figure 17 is K-K cutaway view Amplified images of Figure 16, and Figure 18 is figure
The schematic enlarged-scale view of 14 local II.
Specific embodiment
Example 1
Referring to Fig. 1～3, this example is a kind of antivibrator reinforced for building structure aseismatic, and the antivibrator includes discoid
Upper head plate 1 and bottom plate 2, disk spring group 3 is provided between upper and lower end plate, wherein bottom plate 2 is provided with guide post 4, and this is led
Upper head plate is passed to centre bore of the bar 4 upwards along disk spring group 3；Described disk spring group 3 is folded by 16 pieces of disk springs
It is combined into.
Referring to Fig. 1～4, described is additionally provided with up and down backpressure device between end plate, and the backpressure device includes four pre- compressed steel
5, four 6, four steel wire rope self-lockings of lifting bolt as steel wire rope break-in element of cord are tensioned anchorages 13 and one piece is floated instead
Laminated steel 7.
Referring to Fig. 1, Fig. 3 and Fig. 4, floating back-pressure steel plate 7 is set in the guide post 4 between disk spring group 3 and bottom plate 2
On.
Referring to Fig. 1 and Fig. 2, four lifting bolts 6 as steel wire rope break-in element are fixed around the axisymmetrical of guide post 4
On upper head plate 1.
Referring to Fig. 5～9, each steel wire rope self-locking tensioning anchorage 13 is locked by the first self-centering locking fixture, the second self-centering
Clamper, anti-torsion compression spring 13-1 and plane bearing 13-2 composition, wherein：
The first described self-centering locking fixture has a connecting seat 13-3, and the edge of connecting seat 13-3 is provided with installing hole
13-12, is provided with axially extending cylindrical boss 13-4 in the middle part of lower end, the internal of boss 13-4 is provided with first along axial line
Taper hole 13-5, is provided with the first taper jaw 13-7 being made up of 3 claw pieces in the taper hole, the outer peripheral face of the boss 13-4 is arranged
There is tensioning swivel nut 13-6, be threadedly coupled therebetween；Wherein, the microcephaly of first tapered clamp 13-7 points to connecting seat 13-3,
The outer peripheral face of the tensioning swivel nut 13-6 is regular hexagon；
The second described self-centering locking fixture has a tapered sleeve 13-8, internal being sequentially provided with along axis of tapered sleeve 13-8
One section of second taper hole 13-13 and one section of screwed hole；Wherein, it is provided with the second taper being made up of 3 claw pieces in the second taper hole 13-13
Jaw 13-9, is provided with hollow bolt 13-10, the head of hollow bolt 13-10 and the second taper jaw 13- in described screwed hole
9 major part is relative, and the outer peripheral face of the tapered sleeve 13-8 is regular hexagon；
Described plane bearing 13-2 is by ball-retainer component 13-11 and is respectively provided at tensioning swivel nut 13-6 and tapered sleeve
Ring raceway on 13-8 relative end face is constituted, wherein in described ring raceway and ball-retainer component 13-11
Ball matches；
The second self-centering locking fixture is located at the outside of tensioning swivel nut 13-6 heads, and the second taper jaw 13-9
Microcephaly is consistent with the sensing of the first taper jaw 13-7 microcephalies；Described plane bearing 13-2 be located at the tensioning swivel nut 13-6 and
Between tapered sleeve 13-8, described anti-torsion compression spring 13-1 is located in the endoporus of tensioning swivel nut 13-6.When precompressed steel wire rope 5 is by
Jing is anti-between the calvus of one taper jaw 13-7 turns round centre bore of compression spring 13-1 with plane bearing 13-2 and the second taper
After passing between the calvus of jaw 13-9, under the tension force effect of precompressed steel wire rope 5, an anti-work for turning round compression spring 13-1
On the first taper jaw 13-7, other end is acted on tapered sleeve 13-8.
Referring to Fig. 1～4, the axisymmetrical on the floating back-pressure steel plate 7 around guide post 4 is provided with four lifting bolts 6, institute
The outside of bottom plate 2 is stated, four institutes are correspondingly provided with by the relative position of set four lifting bolts 6 on floating back-pressure steel plate 7
State steel wire rope self-locking tensioning anchorage 13；Four precompressed steel wire ropes 5 are distributed in the surrounding of disk spring group 3 with broken line state, and often
One of a piece precompressed steel wire rope 5 is to connect to be fixed on floating back-pressure steel plate 7 on set lifting bolt 6, and other end passed around phase
To a lifting bolt 6 as steel wire rope break-in element after turn back, then the precompressed steel wire rope 5 is set from bottom plate 2
Steel wire rope self-locking tensioning anchorage 13 relative position pass through floating back-pressure steel plate 7, by steel wire rope self-locking tensioning anchorage 13 anchor with
On the adjacent bottom plate 2 of floating back-pressure steel plate 7；On described floating back-pressure steel plate 7, in each precompressed steel wire rope 5 position is passed through
The through hole 8 being equipped with through precompressed steel wire rope 5 is put, the aperture of the through hole 8 is more than the diameter of the precompressed steel wire rope 5；Described
On bottom plate 2, the anchor hole 16 of anchoring precompressed steel wire rope 5 is equipped with through position in each precompressed steel wire rope 5.
Referring to Fig. 1～4 and with reference to Fig. 5～9, in order to realize the purpose of predeterminable initial stiffness, above-mentioned four pre- steel wires
The installation of rope 5 and tensioning method are as described below：(1) first according to the default initial stiffness of antivibrator and the characteristic of precompressed steel wire rope 5
Parameter, calculates the tension force that precompressed steel wire rope 5 meets antivibrator initial stiffness；(2) by Fig. 1 by floating back-pressure steel plate 7, dish-shaped bullet
Spring group 3, upper head plate 1 are sleeved on successively on guide post 4, are to be connected on floating back-pressure steel plate by one of precompressed steel wire rope 5 then
On 7 on set lifting bolt 6, other end was passed around on upper head plate 1 as turning back after the lifting bolt 6 of steel wire rope break-in element,
Set via 16 and steel wire rope self-locking tensioning anchorage on through hole 8 set on floating back-pressure steel plate 7, bottom plate 2 are sequentially passed through again
13；Then, (3) are connected on the fag end system of the precompressed steel wire rope 5 for exposing on traction stretching machine, and adopt while tensioning is drawn
The tension force of tension detecting instrument monitoring precompressed steel wire rope 5；When the precompressed steel wire rope 5 is tensioned to tension force needed for default initial stiffness
When, the second self-centering locking fixture is moved forward, while adjust turning tensioning swivel nut 13-6 so that plane bearing 13-2 is by tightly
It is clipped between the tensioning swivel nut 13-6 and tapered sleeve 13-8, and anti-torsion compression spring 13-1 is compressed, the tension force produced by it is pushed away
Dynamic first taper jaw 13-7 reaches clamp on precompressed steel wire rope 5, and described hollow bolt 13-10 is turned thereafter will be positioned at second
Precompressed steel wire rope 5 is pressed from both sides extremely in taper jaw 13-9；Finally, traction stretching machine is removed, unnecessary precompressed steel wire rope 5 is blocked, you can
Disk spring group 3 is clamped in all the time between upper head plate 1 and floating back-pressure steel plate 7.
Referring to Fig. 1 and Fig. 5～9, in the work progress for installing antivibrator or in routine maintenance procedure, if it find that certain is pre-
The tension force of compressed steel cord 5 is not enough, you can the tensioning swivel nut 13-6 turned in steel wire rope self-locking tensioning anchorage 13 is adjusted.
Referring to Fig. 1, the upper surface of upper head plate 1 is arranged with two parallel lugs 9 in the outside of guide post 4, two lugs 9
Head is provided with hinge hole 10；The lower surface of bottom plate 2 is provided with another lug 9 along the axis of guide post 4, the head of the lug 9
It is provided with hinge hole 10.
Referring to Fig. 1, in order to prevent dust and other debris from falling in disk spring group 3 the normal work of antivibrator is affected
Make, upper head plate 1 is arranged with soft protective jacket 11 with the surrounding of bottom plate 2, and the top of the protective jacket 11 is bonded at the upper table of upper head plate 1
Face, following is bonded at the lower surface of bottom plate 2.The length of the protective jacket 11 is bonded at lower end more than the upper surface of upper head plate 1 and following
The distance between lower surface of plate 2, in order to avoid affect the work of antivibrator.
Referring to Fig. 1～4, the operation principle of the antivibrator reinforced for building structure aseismatic described in this example is as follows：When being more than
The dynamic loading of design dead load along guide post 4 axis it is relative act on the lug up and down of antivibrator when, the quilt of disk spring group 3
Compression, the relative movement of hinge hole 10 on upper and lower lug；When opposite along the axis of guide post 4 more than the dynamic loading of design dead load
When acting on the lug up and down of antivibrator, four precompressed steel wire ropes 5 are respectively by as the suspension ring spiral shell of steel wire rope break-in element
Nail 6 is reversely sling the compression disk spring group 3 of floating back-pressure steel plate 7, and the hinge hole 10 on upper and lower lug moves backward.Thus may be used
See, no matter relative axial dynamic loading is or acts on back-pressure disk spring antivibrator opposite to each other, can compress disk spring group 3,
Bring it about elastic deformation and consume energy.
Example 2
This example is also a kind of antivibrator reinforced for building structure aseismatic, the antivibrator and vibration damper described in example 1
Differ primarily in that described backpressure device is different.The backpressure device of this example is described below.
Referring to Figure 10～13, the backpressure device of this example is located between upper head plate 1 and bottom plate 2, and the backpressure device includes four
5, four 12, the four steel wire rope self-lockings of U-shaped component as steel wire rope break-in element of root precompressed steel wire rope are tensioned anchorage 13 and
Block floating back-pressure steel plate 7.
Referring to Figure 10 and Figure 11, floating back-pressure steel plate 7 is set in the guide post 4 between disk spring group 3 and upper head plate 1
On.
Referring to Figure 10 and Figure 12～13, axis pair of four U-shaped components 12 as steel wire rope break-in element around guide post 4
Title is welded and fixed on bottom plate 2.Each U-shaped component 12 is made up of round steel bending, in the phase for arranging U-shaped component 12 on bottom plate 2
Position is answered to be provided with the fabrication hole matched with 15 two sides of U-shaped component, U-shaped component 12 is inserted in the fabrication hole, the two welding
It is fixed together.
Referring to Fig. 5～9, the structure of steel wire rope self-locking tensioning anchorage 13 is identical with example 1 in this example.
Referring to Figure 10～13, the axisymmetrical on the floating back-pressure steel plate 7 around guide post 4 is provided with four lifting bolts 6
(U-shaped component 12 obviously may also be employed), the outside of the upper head plate 1, set four lifting bolts 6 on floating back-pressure steel plate 7
Relative position by be correspondingly provided with four steel wire rope self-lockings and be tensioned anchorages 13；Four precompressed steel wire ropes 5 are with broken line state point
In the surrounding of disk spring group 3, and of each precompressed steel wire rope 5 is fixed on floating back-pressure to cloth by the lifting bolt 6
On steel plate 7, other end passed around to be turned back after a U-shaped component 12 of relative as steel wire rope break-in element, the then precompressed
The relative position of set steel wire rope self-locking tensioning anchorage 13 from upper head plate 1 of steel wire rope 5 passes through floating back-pressure steel plate 7, by described
Steel wire rope self-locking tensioning anchorage 13 is anchored on the upper head plate 1 adjacent with floating back-pressure steel plate 7；Described floating back-pressure steel plate 7
On, the through hole 8 through precompressed steel wire rope 5 is equipped with through position in each precompressed steel wire rope 5, the aperture of the through hole 8 is more than
The diameter of the precompressed steel wire rope 5；On described upper head plate 1, anchoring is equipped with through position in each precompressed steel wire rope 5 pre-
The anchor hole 16 of compressed steel cord 5.
This example makees the installation of four precompressed steel wire ropes 5 and tensioning method is same as Example 1.
This example other implementations other than the above are same as Example 1.
The operation principle for being used for building structure aseismatic reinforcing antivibrator described in this example is same as Example 1, and the public can refer to example 1 certainly
Row analysis.
Example 3
Referring to Figure 14～18, the antivibrator described in this example be a kind of vertical earthquake isolating equipment for Antiseismic building (also referred to as
Vertical earthquake isolating bearing), it includes discoid upper head plate 1 and bottom plate 2, and disk spring group 3 is provided between upper and lower end plate, wherein
Upper head plate 1 is provided with guide post 4, and the guide post 4 passes bottom plate 2 along the centre bore of disk spring group 3 upwards；Described dish
Groups of springs 3 is made up of 16 pieces of disk spring overlappings.
Referring to Figure 14, the edge of the upper head plate 1 and the surrounding of bottom plate 2 is respectively equipped with land installing hole 14, wherein lower end
Plate 2 swells upwards to form inverted washbowl shape for middle part, and center is provided with the hole matched with guide post 4.
Referring to Figure 14～18, described is provided with up and down backpressure device between end plate, and the backpressure device includes the pre- compressed steel of land root
Cord 5, land is only used as the fixed pulley 15 of steel wire rope break-in element, land steel wire rope self-locking tensioning anchorage 13 and one piece of floating back-pressure
Steel plate 7.
Referring to Figure 14, Figure 16 and Figure 17, floating back-pressure steel plate 7 is set in the guiding between disk spring group 3 and bottom plate 2
On bar 4.
Referring to Figure 14 and Figure 15, land is only used as the fixed pulley 15 of steel wire rope break-in element and consolidates around the axisymmetrical of guide post 4
Determine on upper head plate 1.
Referring to Fig. 5～9, the structure of steel wire rope self-locking tensioning anchorage 13 is identical with example 1 in this example.
Referring to Figure 14～18, the axisymmetrical on the floating back-pressure steel plate 7 around guide post 4 is provided with land lifting bolt 6,
The outside of the bottom plate 2, land is correspondingly provided with the floating back-pressure steel plate 7 by the relative position of set land lifting bolt 6
The steel wire rope self-locking is tensioned anchorage 13；Land root precompressed steel wire rope 5 is distributed in the surrounding of disk spring group 3 with broken line state, and
One of each precompressed steel wire rope 5 is fixed on floating back-pressure steel plate 7 by the lifting bolt 6, and other end passed around relative
One be only used as being turned back after the fixed pulley 15 of steel wire rope break-in element, the then precompressed steel wire rope 5 set steel wire from bottom plate 2
The relative position of rope self-locking tensioning anchorage 13 passes through floating back-pressure steel plate 7, is anchored at by steel wire rope self-locking tensioning anchorage 13
On the bottom plate 2 adjacent with floating back-pressure steel plate 7；On described floating back-pressure steel plate 7, pass through in each precompressed steel wire rope 5
Position is equipped with the through hole 8 through precompressed steel wire rope 5, and the aperture of the through hole 8 is more than the diameter of the precompressed steel wire rope 5；It is described
Bottom plate 2 on, the anchor hole 16 of anchoring precompressed steel wire rope 5 is equipped with through position in each precompressed steel wire rope 5.
Referring to Figure 14～18, the installation of land root precompressed steel wire rope 5 and tensioning method are also same as Example 1 in this example.
This example other implementations other than the above are same as Example 1.
Under ideal conditions, when the vertical ripple of earthquake passes through earthquake isolating equipment to building transmission, building should be unable to be sent out
Raw displacement.Based on this, the operation principle of the earthquake isolating equipment of Antiseismic building described in this example is as follows：Referring to Figure 14, when erecting for earthquake
When overcoming the initial stiffness of antivibrator to the dynamic loading produced by ripple, if the dynamic loading is pushed along the axis of guide post 4
End plate 2, the counteracting force of upper head plate 1 just compresses downwards disk spring group 3, and building is motionless with shifting on ground for bottom plate 2；Such as
Really, along the drop-down bottom plate 2 of axis of guide post 4, precompressed steel wire rope 5 is then by determining as steel wire rope break-in element for the dynamic loading
Pulley 15 is reversely sling floating back-pressure steel plate 7, and disk spring group 3 is compressed upwards, and bottom plate 2 is moved down with ground, but still is built
Thing is motionless.As can be seen here, the compressible generation of disk spring group 3 elastic deformation when P wave makes ground that up-down vibration to occur
And consume energy.
Claims (4)
1. a kind of adjustable back-pressure butterfly spring antivibrator of rigidity, the antivibrator includes two end plates, described two end plates it
Between be provided with disk spring group, one of end plate is provided with guide post, and the guide post is worn along the centre bore of the disk spring group
Go out another end plate；Described disk spring group is made up of one group of disk spring overlapping；Characterized in that,
Backpressure device is additionally provided between described two end plates, the backpressure device includes the precompressed steel wire rope of more than three and in advance
The equal steel wire rope break-in element of the compressed steel cord quantity steel wire rope self-locking tensioning anchorage and equal with precompressed steel wire rope quantity
Block floating back-pressure steel plate, wherein,
Described floating back-pressure steel plate is set on the guide post between disk spring group and one piece of end plate；
Described steel wire rope break-in element is held away from the end plate of floating back-pressure steel plate around the axisymmetrical of described guide post
On；
Described steel wire rope self-locking tensioning anchorage is by the first self-centering locking fixture, the second self-centering locking fixture, anti-torsion compression
Spring and plane bearing are constituted, wherein：
A the first self-centering locking fixture described in) has a connecting seat, and in the middle part of the connecting seat one end axially extending cylinder is provided with
Shape boss, the internal of the boss is 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 the second self-centering locking fixture described in) has a tapered sleeve, and the internal of the tapered sleeve is 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
Relatively, the outer peripheral face of the tapered sleeve is regular hexagon；
C the plane bearing described in) is by ball-retainer component and is respectively provided on the tensioning swivel nut end face relative with tapered sleeve
Ring raceway is constituted, wherein described ring raceway matches 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；Compression bullet is turned round when Jing is anti-between calvus of the precompressed steel wire rope by 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 steel wire rope tension,
Anti- turn round compression spring one is acted on the first taper jaw, and other end is acted on tapered sleeve；
Described precompressed steel wire rope is distributed in the surrounding of the disk spring group with broken line state, and each precompressed steel wire rope
One axisymmetrical around described guide post is fixed on floating back-pressure steel plate, and other end passed around a relative steel wire rope
Turn back after break-in element, floating back-pressure steel plate then passed through by the fixing point from the precompressed steel wire rope on floating back-pressure steel plate,
It is anchored on the end plate adjacent with floating back-pressure steel plate by steel wire rope self-locking tensioning anchorage；
On described floating back-pressure steel plate, it is equipped with through the logical of precompressed steel wire rope each precompressed steel wire penetrating position
Hole, the aperture of the through hole is more than the diameter of the precompressed steel wire rope；
By the precompressed steel wire tensioning to tension force needed for default initial stiffness, described disk spring group is set to be clamped in all the time far
Between the end plate and floating back-pressure steel plate of floating back-pressure steel plate.
2. a kind of adjustable back-pressure butterfly spring antivibrator of rigidity according to claim 1, it is characterised in that the back-pressure butterfly
Shape spring-damper is the antivibrator reinforced for building structure aseismatic.
3. a kind of adjustable back-pressure butterfly spring antivibrator of rigidity according to claim 1, it is characterised in that the back-pressure butterfly
Shape spring-damper is the vertical earthquake isolating equipment for Antiseismic building.
4. a kind of adjustable back-pressure butterfly spring antivibrator of rigidity according to claim 1,2 or 3, it is characterised in that institute
The steel wire rope break-in element stated is fixed pulley, lifting bolt or U-shaped component.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610905603.5A CN106639456A (en) | 2016-10-17 | 2016-10-17 | Back pressure disc-shaped spring damper with adjustable rigidity |
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| CN201610905603.5A CN106639456A (en) | 2016-10-17 | 2016-10-17 | Back pressure disc-shaped spring damper with adjustable rigidity |
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| CN201610905603.5A Pending CN106639456A (en) | 2016-10-17 | 2016-10-17 | Back pressure disc-shaped spring damper with adjustable rigidity |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938560A (en) * | 2017-11-01 | 2018-04-20 | 中铁大桥勘测设计院集团有限公司 | A kind of energy-consuming device and anti-collision facility |
| CN108362460A (en) * | 2018-04-08 | 2018-08-03 | 天津大学 | A kind of multidirectional adjustable rigidity spring suitable for multiple spot shaketalle test simulating boundary |
| CN108591348A (en) * | 2018-04-19 | 2018-09-28 | 上海材料研究所 | It is a kind of damping and the adjustable disk spring damper of rigidity |
| CN109610668A (en) * | 2018-12-26 | 2019-04-12 | 深圳防灾减灾技术研究院 | The disk spring group of shock isolating pedestal |
| CN109667356A (en) * | 2018-12-26 | 2019-04-23 | 深圳防灾减灾技术研究院 | Spring friction isolation support |
| CN113216432A (en) * | 2021-04-16 | 2021-08-06 | 哈尔滨工业大学（深圳） | Combined three-dimensional shock insulation layer |
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| CN102409777A (en) * | 2011-09-30 | 2012-04-11 | 福州大学 | Structural three-dimensional shock isolation and anti-overturning device |
| CN103343593A (en) * | 2013-07-25 | 2013-10-09 | 长沙理工大学 | Prestressed-tendon anchor with high accuracy and free adjustment and control functions |
| CN103867625A (en) * | 2013-11-26 | 2014-06-18 | 徐州工程学院 | Rope type self-reset shape memory alloy seismic isolation and seismic reduction support |
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| JPH07173954A (en) * | 1993-12-20 | 1995-07-11 | Japan Atom Energy Res Inst | Base isolation device |
| CN201136517Y (en) * | 2007-12-18 | 2008-10-22 | 中国北车集团四方车辆研究所 | Bidirectional buffer for pulling-pressing conversion of elastic body |
| CN102409777A (en) * | 2011-09-30 | 2012-04-11 | 福州大学 | Structural three-dimensional shock isolation and anti-overturning device |
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| CN103867625A (en) * | 2013-11-26 | 2014-06-18 | 徐州工程学院 | Rope type self-reset shape memory alloy seismic isolation and seismic reduction support |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938560A (en) * | 2017-11-01 | 2018-04-20 | 中铁大桥勘测设计院集团有限公司 | A kind of energy-consuming device and anti-collision facility |
| CN107938560B (en) * | 2017-11-01 | 2021-01-15 | 中铁大桥勘测设计院集团有限公司 | Energy consumption device and anti-collision facility |
| CN108362460A (en) * | 2018-04-08 | 2018-08-03 | 天津大学 | A kind of multidirectional adjustable rigidity spring suitable for multiple spot shaketalle test simulating boundary |
| CN108362460B (en) * | 2018-04-08 | 2022-12-27 | 天津大学 | Multidirectional adjustable stiffness spring suitable for multipoint shaking table test simulation boundary |
| CN108591348A (en) * | 2018-04-19 | 2018-09-28 | 上海材料研究所 | It is a kind of damping and the adjustable disk spring damper of rigidity |
| CN109610668A (en) * | 2018-12-26 | 2019-04-12 | 深圳防灾减灾技术研究院 | The disk spring group of shock isolating pedestal |
| CN109667356A (en) * | 2018-12-26 | 2019-04-23 | 深圳防灾减灾技术研究院 | Spring friction isolation support |
| CN113216432A (en) * | 2021-04-16 | 2021-08-06 | 哈尔滨工业大学（深圳） | Combined three-dimensional shock insulation layer |
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Application publication date: 20170510 |