CN106437262A - Disc-shaped spring damper with rigidity capable of being preset - Google Patents
Disc-shaped spring damper with rigidity capable of being preset Download PDFInfo
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- CN106437262A CN106437262A CN201610903580.4A CN201610903580A CN106437262A CN 106437262 A CN106437262 A CN 106437262A CN 201610903580 A CN201610903580 A CN 201610903580A CN 106437262 A CN106437262 A CN 106437262A
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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
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Abstract
The invention relates to a disc-shaped spring damper with the rigidity capable of being preset. The disc-shaped spring damper is characterized in that a back pressure device is arranged between two end plates and comprises more than three prepressing steel wire ropes, steel wire rope direction changing elements of which the quantity is equal to that of the prepressing steel wire ropes and a floating back pressure steel plate, wherein the prepressing steel wire ropes are distributed around a disc-shaped spring set in a broken line mode, one ends of the prepressing steel wire ropes are symmetrically fixed to the floating back pressure steel plate around the axis of a guiding rod, and the other ends of the prepressing steel wire ropes bypass the corresponding steel wire rope direction changing elements in a penetrating mode, turn back and then penetrate through the floating back pressure steel plate from the positions beside fixing points of the prepressing steel wire ropes on the floating back pressure steel plate to be fixed to the end plate adjacent to the floating back pressure steel plate; the prepressing steel wire ropes are tensioned till the tension needed by the initial rigidity is achieved, so that the disc-shaped spring set is always clamped between the end plate far away from the floating back pressure steel 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 is 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.After nineteen seventies, damping
Device is progressively converted to 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 have load with deformation in non-linear relation variation rigidity characteristic, be therefore widely used in every
In the devices such as shake, damping.A kind of stage clip of disk spring, generally can singly only be independently operated, also can many be superimposed on use.But
It is that the many butterfly springs being superimposed on can only operate in compressive state.Therefore, it is currently used for wind resistance and earthquake-resistant antivibrator
At least two groups of disk springs to be used, or be combined with other types of antivibrator (as viscoelastic damper).But, this make
The method be combined with multigroup disk spring or with other types of antivibrator can produce much negative problem, such as：1st, damp
The stretching of device is asymmetric with the damping characteristic of compression, impact shock insulation, damping effect；2nd, volume is big, cannot install in small space；
3rd, complex structure, produces difficult, high cost；Etc..
The patent application of Publication No. CN 1067948A disclose a kind of " combined shock isolating unit ", this isolator includes
The disk spring antivibrator (referring to Fig. 2 of this application) of one multi-disc disc spring film overlapping composition, this antivibrator is " using 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 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 being available for installing in combined shock isolating unit
Put.) effect of flexible cable formula backpressure device is when resilience after moving object punching press isolated component, play amplitude limit and accelerate decay
Effect." from above description and this application Fig. 2, wherein said " amplitude limit and the effect accelerating decay " essence is exactly
Amplitude limit acts on, that is, prevent the amplitude of resilience after moving object punching press isolated component excessive.But the effect of seismic wave be in multidirectional with
Machine, that is, it is all random for acting on the size direction of power on building and frequency, thus be accordingly used in earthquake-resistant antivibrator then by
Following two requirements：One be antivibrator characteristic frequency will with Seismic input excitation resonance frequency domain stagger, two is antivibrator
Characteristic frequency will be staggered with the characteristic frequency of building or 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 to be connected the quality of object with butterfly spring, and ξ is equivalent quality transformation ratio) [see,《Petroleum machinery》Magazine,
Volume 23 the 3rd phase the 10th nineteen ninety-five is to waiting page 22] visible, the quality of the object that is connected when the quality of butterfly spring with butterfly spring
After design determines, square being directly proportional to upper butterfly spring rigidity of the butterfly spring natural frequency of vibration.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 (as disk spring), just cannot be initially firm by default or regulation in assembling process
Spend and to change its characteristic frequency hence it is evident that there is the choosing of the structural parameters of the material of disk spring, overall structure and each parts
Select difficult design, the amount of calculation technical barrier being difficult to overcome such as big, undoubtedly production cost to be 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, if therefore
It is designed as the anti-seismic damper device of anti-middle highlight lines it is clear that not having wind load resistance and the effect of 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 ", this antivibrator is connected in load using being located at the differential attachment adjusting set being made up of in the middle part of load connecting rod left and right spin nut
The decrement of two groups of disk springs of extension bar, and then adjust the damped coefficient of disk spring.Due to disclosed in this application for a patent for invention
Scheme the decrement simultaneously adjusting two groups of disk springs is adjusted using described differential attachment, therefore cannot preset initially firm
Degree.Because this antivibrator is in poised state in the case of external power-free, now, either still consolidating in load connecting rod
Determine some external force is applied on otic placode to break balance, that is, the initial stiffness of antivibrator is equal to zero.Therefore, if by this antivibrator
For wind damage resisting or earthquake disaster, under the influence of little wind or low earthquake intensity earthquake, building produces and rocks, 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 ", this vibroshock is a kind of composite buffer, changes its characteristic frequency by changing the thickness of mass, viscous by changing
The flow of the working media of stagnant antivibrator changes its damping ratio, changes its rigidity by the effective active length changing spring, its
The means of the middle effective active length changing spring have three kinds, and one is section spring being located in solidification cylinder using curing materials
Solidification, two fill in constraint block toward intracardiac in helical spring, and the two interference fit, make the one section of spring contacting with constraint block
Lost efficacy, three is to arrange helical raised on constraint block surface, and helical raised is stuck between spring wire, makes card between spring wire
There is one section of spring failure of helical raised.As can be seen here, although the spring in this patent application scheme can change rigidity, institute
Not only effectively active length substantially shortens the spring stated, and can only compress passive energy dissipation it is impossible to stretch passive energy dissipation.
Content of the invention
The technical problem to be solved is the butterfly spring antivibrator providing a kind of rigidity predeterminable, this antivibrator
Not only maintain effective active length of butterfly spring group, and both compressible passive energy dissipations, and stretchable passive energy dissipation.
The present invention solve above-mentioned technical problem technical scheme be：
A kind of predeterminable butterfly spring antivibrator of rigidity, this antivibrator includes two end plates, between described two end plates
It is provided with disk spring group, one of end plate is provided with guide post, this guide post passes along the centre bore of described disk spring group
Another piece of end plate；Described disk spring group is made up of one group of disk spring overlapping；It is characterized in that,
Be additionally provided with backpressure device between described two end plates, this backpressure device include more than three precompressed steel wire rope,
The 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 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 precompressed steel wire rope is distributed in the surrounding of 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, then from this precompressed steel wire rope, the fixing point on floating back-pressure steel plate is other passes through floating back-pressure steel plate solid
It is scheduled on and float on the adjacent end plate of back-pressure steel plate；
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 this through hole is more than the diameter of described precompressed steel wire rope；
By precompressed steel wire tensioning to tension force needed for default initial stiffness, described disk spring group is made to be clamped in all the time far
Between the end plate and floating back-pressure steel plate of floating back-pressure steel plate.
The operation principle of above-mentioned disk spring antivibrator is as follows：When dynamic loading acts on relatively along the axis of fairlead, far
End plate from floating back-pressure steel plate compresses downwards disk spring group；When dynamic loading acts 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, axial dynamic load
No matter lotus acts on disk spring antivibrator relatively or opposite to each other, can compress dish-shaped groups of springs so as to there is elastic deformation
And consume energy.
From above-mentioned operation principle, logical on the precompressed steel wire rope described in work process and described floating back-pressure steel plate
The hole wall in hole can not produce friction, otherwise interferes with moving up and down of floating back-pressure steel plate, and therefore described through-hole diameter compares institute
The diameter stating precompressed steel wire rope is how many greatly, should be not disturb and to affect moving up and down of 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 etc..
The predeterminable butterfly spring antivibrator of rigidity of the present invention, wherein said precompressed steel wire rope two can adopt
It is welded and fixed, similar lifting bolt system may also be employed and connect fixation, but, if two is all connect admittedly using welding or lifting bolt system
Fix, then the purpose of default initial stiffness will be reached, be necessary for precalculating and strictly control the length of described precompressed steel wire rope
The default tension force of degree ability, and then reach the purpose of default initial stiffness.But, in actual production debugging process, adopt
The method controlling described precompressed rope capacity reaches the purpose of default initial stiffness and then there are following two hang-ups, and one is welding
Or be that the process connecing can produce error, even if two are to control welding or are the produced error of the process connecing, but steel wire rope is being cut
The change of its characterisitic parameter is also resulted in disconnected, placement process.In order to solve above-mentioned technical barrier, an improvement side of the present invention
Case is：
The other end of described precompressed steel wire rope is fixed on and the adjacent end of back-pressure steel plate of floating by steel wire rope self-locking anchorage
On plate；Described steel wire rope self-locking anchorage is made up of installing hole, jaw and check bolt, wherein,
Described installing hole is located at and floats on the adjacent end plate of back-pressure steel plate；Described installing hole is by one section of taper hole and one
Section screwed hole composition, wherein said taper hole is located at the side near floating back-pressure steel plate, and tip points to floating back-pressure steel plate, institute
State the side that screwed hole is located remotely from floating back-pressure steel plate；
Described jaw is to match cone with described taper hole, and is made up of 3-5 lobe, and it is provided with clamping along axis in vivo
The clamping hole of precompressed steel wire rope；
Described check bolt is matched with described screwed hole, and is provided with diameter greater than described pre- steel wire along axis in vivo
The circular hole of rope diameter；
Described jaw is arranged in described taper hole, and check bolt is arranged on described screw thread in the hole.
From above-mentioned improvement project, one of precompressed steel wire rope is fixed in floating counter, other end is by described
The clamping hole of steel wire rope self-locking anchorage and circular hole in pass, so can the fag end system exposed be connected on traction stretching machine on,
While drawing tensioning, tension force is monitored using tension detecting instrument.When described precompressed steel wire tensioning is to needed for default initial stiffness
During tension force, turn check bolt and described jaw can be promoted to clamp and locked precompressed steel wire rope, even if precompressed steel wire rope is anti-
Also will not loosen in the vibration processes of multiple tensioning → lax → tensioning → lax.
Disk spring antivibrator of the present invention, can be widely used for machinery and building field, e.g., shakes inside plant equipment
Dynamic isolation, equipment Foundations shock insulation, the seismic hardening of building structure, antidetonation of heavy construction etc..
The predeterminable disk spring antivibrator of rigidity of the present invention has the effect that compared with prior art：
(1) apply external force along axis, no matter this external force is pressure or pulling force, and described disk spring group all can produce bullet
Property compression and consume energy, overcome classical dish-like shapes spring-damper can only compression power consumption shortcoming；
(2) after dynamic loading is more than the defensive ability/resistance ability that antivibrator presets initial stiffness, disk spring damping of the present invention
The deformation of device bidirectional elastic is symmetrical, does not therefore affect the effect of its compression power consumption because of the change of the positive negative direction of external applied load,
Provide convenience condition for Design of Reinforcement such as building structure wind load resistances；
(3) as long as the length changing steel wire rope can change the initial stiffness of whole antivibrator, therefore used building
Vertical earthquake isolating when, predeterminable earthquake intensity, significantly reduce shock insulation cost；
(4) only may be implemented in two kinds of working conditions of stretching and compression with a disk spring group, significantly shorten damping
The length of device.
(5) length presetting described precompressed steel wire rope is predeterminable antivibrator initial stiffness, and described disk spring group
In do not have disk spring to lose efficacy, that is, effectively active length is constant, will not change the original characterisitic parameter of disk spring group.
Brief description
Fig. 1～4 are the structural representation of a specific embodiment of disk spring antivibrator of the present invention, wherein, Fig. 1
For front view (partly cuing open), Fig. 2 is the A A sectional view (omitting precompressed steel wire rope and protective jacket) of Fig. 1, and Fig. 3 is that the B B of Fig. 1 cuts open
View (omits precompressed steel wire rope and protective jacket), and Fig. 4 is C C cutaway view Amplified image in Fig. 1.
Fig. 5～10 are the structural representation of second specific embodiment of disk spring antivibrator of the present invention, wherein,
Fig. 5 is front view (partly cuing open), and Fig. 6 is the D D sectional view (omitting precompressed steel wire rope and protective jacket) of Fig. 5, and Fig. 7 is the E E of Fig. 5
Sectional view (omits precompressed steel wire rope and protective jacket), and Fig. 8 is the schematic enlarged-scale view of Fig. 5 local I, and Fig. 9 is the F F sectional view of Fig. 6
Enlarged drawing, Figure 10 is the G G profile of Fig. 9.
Figure 11～15 be disk spring antivibrator of the present invention the 3rd specific embodiment structural representation, its
In, Figure 11 is front view (partly cuing open), and Figure 12 is the H H sectional view (omitting precompressed steel wire rope and protective jacket) of Figure 11, and Figure 13 is figure
11 I I sectional view (omit precompressed steel wire rope and protective jacket), Figure 14 is that (in figure dotted line is for the J J cutaway view Amplified image of Figure 13
Wear the circular hole of precompressed steel wire rope), Figure 15 is the schematic enlarged-scale view of Figure 11 local II.
Specific embodiment
Example 1
Referring to Fig. 1～3, this example is a kind of antivibrator for building structure aseismatic reinforcing, and this antivibrator includes discoid
Upper head plate 1 and bottom plate 2, be provided with disk spring group 3 between upper and lower end plate, wherein bottom plate 2 is provided with guide post 4, and this is led
Pass upper head plate 1 to bar 4 upwardly along the centre bore of 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, between described end plate up and down, it is additionally provided with backpressure device, this backpressure device includes four pre- compressed steel
5, four lifting bolts 6 as steel wire rope break-in element of cord and one block of floating back-pressure steel plate 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. 1～4, on described floating back-pressure steel plate 7, the axisymmetrical around guide post 4 is provided with four lifting bolts 6, institute
State on bottom plate 2 with the relative position of set four lifting bolts 6 on floating back-pressure steel plate 7 by be correspondingly provided with other four suspension ring
Screw 6；Four precompressed steel wire ropes 5 are distributed in the surrounding of disk spring group 3 with broken line state, and each precompressed steel wire rope 5
One is to connect to be fixed on set lifting bolt 6 on floating back-pressure steel plate 7, and other end passed around relative one as steel wire rope
Turn back after the lifting bolt 6 of break-in element, then the relative position of this precompressed steel wire rope 5 set lifting bolt 6 from bottom plate 2
Through floating back-pressure steel plate 7, it is to connect on set lifting bolt 6 on the fixation bottom plate 2 adjacent with floating back-pressure steel plate 7；Described
Floating back-pressure steel plate 7 on, be equipped with the through hole 8 through precompressed steel wire rope 5 in each precompressed steel wire rope 5 through position, should
The aperture of through hole 8 is more than the diameter of described precompressed steel wire rope 5.
Referring to Fig. 1～4, in order to realize the purpose of predeterminable initial stiffness, the installation of above-mentioned four precompressed steel wire ropes 5 and
Clamping method is as described below：(1) first the coefficient of elasticity according to the default initial stiffness of antivibrator and disk spring group 3 determines dish-shaped bullet
Spring group 3 decrement, and then calculate each precompressed steel wire rope 5 and meet the length required by antivibrator initial stiffness；(2) press figure
1 floating back-pressure steel plate 7, disk spring group 3, upper head plate 1 are sleeved on guide post 4 successively, are clamped using assembly tool, make
Disk spring group 3 is compressed to and calculates the length determining；Then, one of precompressed steel wire rope 5 is to be connected on floating back-pressure steel by (3)
On set lifting bolt 6 on plate 7, other end passed around to be turned back after set lifting bolt 6 on upper head plate 1, repeatedly adjust make each
After the physical length of root precompressed steel wire rope 5 is equal with computational length, it is then passed through set through hole 8 on floating back-pressure steel plate 7 fixing
On set lifting bolt 6 on bottom plate 2 and fixing dead with common rope cramp (in figure there is not display), just by disk spring
Group 3 is clamped between upper head plate 1 and floating back-pressure steel plate 7 all the time.
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, the head of this lug 9 along the axis of guide post 4
It is provided with hinge hole 10.
Referring to Fig. 1, affect the normal work of antivibrator to prevent dust from falling in disk spring group 3 with other debris
Make, upper head plate 1 and bottom plate 2 surrounding are arranged with soft protective jacket 11, and the top of this 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 described protective jacket 11 is more than upper head plate 1 upper surface and is bonded at lower end with following
The distance between plate 2 lower surface, in order to avoid the work of impact 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 the axis of guide post 4 relatively act on the lug up and down of antivibrator when, disk spring group 3 quilt
Compression, hinge hole 10 relative movement 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 the suspension ring spiral shell as steel wire rope break-in element
Nail 6 floating back-pressure steel plate 7 of reversely slinging compresses dish-shaped groups of springs 3, and the hinge hole 10 on upper and lower lug moves backward.Thus may be used
See, no matter relatively or opposite to each other axial dynamic loading acts on disk spring antivibrator, dish-shaped groups of springs 3 can be compressed so as to
Elastic deformation is occurred to consume energy.
Example 2
This example is also a kind of antivibrator for building structure aseismatic reinforcing, this antivibrator and vibration damper described in example 1
Differ primarily in that described backpressure device is different.Hereinafter the backpressure device of this example is described.
Referring to Fig. 5～10, the backpressure device of this example is located between upper head plate 1 and bottom plate 2, and this backpressure device includes four
5, four U-shaped components 12 as steel wire rope break-in element of precompressed steel wire rope and one block of floating back-pressure steel plate 7.
Referring to Fig. 5, Fig. 6 and Fig. 9, 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 Fig. 5, Fig. 7 and Fig. 8, four U-shaped components 12 as steel wire rope break-in element are around the axisymmetrical of guide post 4
It is welded and fixed on bottom plate 2.Each U-shaped component 12 is made up of round steel bending, corresponding in setting U-shaped component 12 on bottom plate 2
Position is provided with the fabrication hole matching with 15 two sides of U-shaped component, and U-shaped component 12 is inserted in this technique in the hole, and the two welding is solid
It is scheduled on together.
Referring to Fig. 5～10, on described floating back-pressure steel plate 7, the axisymmetrical around guide post 4 is provided with four lifting bolts 6
(U-shaped component 12 obviously may also be employed), in the phase with set four lifting bolts 6 on floating back-pressure steel plate 7 on described upper head plate 1
To being correspondingly provided with four steel wire rope self-locking anchorages 13 by position；Four precompressed steel wire ropes 5 are distributed in disk spring with broken line state
Organize 3 surrounding, and of each precompressed steel wire rope 5 is fixed on floating back-pressure steel plate 7 by described lifting bolt 6, another
Head turned back after passing around a U-shaped component 12 as steel wire rope break-in element for relative, and then this precompressed steel wire rope 5 is from upper end
On plate 1 relative position of set lifting bolt 6 pass through floating back-pressure steel plate 7, by described steel wire rope self-locking anchorage 13 be fixed on
On the adjacent upper head plate of floating back-pressure steel plate 71；On described floating back-pressure steel plate 7, pass through position in each precompressed steel wire rope 5
Put the through hole 8 being equipped with through precompressed steel wire rope 5, the aperture of this through hole 8 is more than the diameter of described precompressed steel wire rope 5.
Referring to Fig. 9 and Figure 10, above-mentioned steel wire rope self-locking anchorage 13 is by installing hole 13-1, jaw 13-2 and check bolt 13-3
Constitute, wherein, described installing hole 13-1 is located on upper head plate 1；Described installing hole 13-1 is by one section of taper hole and one section of screw thread
Hole forms, and wherein said taper hole is located at the side near floating back-pressure steel plate 7, and tip points to floating back-pressure steel plate 7, screwed hole
It is located remotely from the side of floating back-pressure steel plate 7；Described jaw 13-2 is to match cone with described taper hole, and by 3 lobe groups
Become, it is provided with the clamping hole of clamping precompressed steel wire rope 5 in vivo along axis；Described check bolt 13-3 and described screwed hole phase
Join, and the internal circular hole (in Fig. 9 shown in dotted line) being provided with along axis with diameter greater than precompressed steel wire rope 5 diameter；Described jaw 13-
2 are arranged in described taper hole, and check bolt 13-3 is arranged on described screw thread in the hole.
Referring to Fig. 5～10, in order to realize the purpose of predeterminable initial stiffness, the installation of above-mentioned four precompressed steel wire ropes 5 and
Tensioning method is as described below：(1) the first characterisitic parameter according to the default initial stiffness of antivibrator and precompressed steel wire rope 5, calculates
Precompressed steel wire rope 5 meets the tension force of antivibrator initial stiffness；(2) press Fig. 1 by floating back-pressure steel plate 7, disk spring group 3, upper end
Plate 1 is sleeved on guide post 4 successively, then, one of precompressed steel wire rope 5 is to be connected on set on floating back-pressure steel plate 7 hanging
On ring screw 6, other end passed around to be turned back after set U-shaped component 12 on bottom plate 2, then sequentially passes through on floating back-pressure steel plate 7
The circular hole in clamping hole and check bolt 13-3 in set through hole 8, jaw 16-2 body；Then, (3) are the pre- compressed steel exposing
The fag end system of cord 5 is connected on traction stretching machine, and monitors precompressed steel wire rope 5 using tension detecting instrument while drawing tensioning
Tension force；When described precompressed steel wire rope 5 is tensioned to tension force needed for default initial stiffness, turning check bolt 13-3 can promote
Precompressed steel wire rope 5 is clamped and locked by described jaw 13-2, thus just disk spring group 3 will be clamped in bottom plate 2 all the time
And floating back-pressure steel plate 7 between.
This example other other than the above implementation is same as Example 1.
The operation principle 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 11～15, 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, is provided with disk spring group 3, wherein between upper and lower end plate
Upper head plate 1 is provided with guide post 4, and this guide post 4 passes bottom plate 2 upwardly along the centre bore of disk spring group 3；Described dish
Groups of springs 3 is made up of 16 pieces of disk spring overlappings.
Referring to Figure 11, the edge of described upper head plate 1 and bottom plate 2 surrounding is respectively equipped with land installing hole 14, wherein lower end
Plate 2 is that the inverted washbowl shape of formation is swelled at middle part upwards, and center is provided with the hole matching with guide post 4.
Referring to Figure 11～15, between described end plate up and down, it is provided with backpressure device, this backpressure device includes the pre- compressed steel of land root
Cord 5, land are only used as the fixed pulley 15 of steel wire rope break-in element and one block of floating back-pressure steel plate 7.
Referring to Figure 11, Figure 13 and Figure 14, 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 11, Figure 12 and Figure 15, land is only used as the axis pair around guide post 4 for the fixed pulley 15 of steel wire rope break-in element
Claim on fixing upper head plate 1.
Referring to Figure 11～15, on described floating back-pressure steel plate 7, the axisymmetrical around guide post 4 is provided with land lifting bolt 6,
It is provided with land steel wire rope self-locking in the relative position with set land lifting bolt 6 on floating back-pressure steel plate 7 on described bottom plate 2
Anchorage 13；Land root precompressed steel wire rope 5 is distributed in the surrounding of disk spring group 3 with broken line state, and each precompressed steel wire rope 5
One is fixed on floating back-pressure steel plate 7 by described lifting bolt 6, and other end passed around relative one and is only used as steel wire rope break-in
Turn back after the fixed pulley 15 of element, then this precompressed steel wire rope 5 relative position of set lifting bolt 6 from bottom plate 2 passes through
Floating back-pressure steel plate 7, is fixed on and is floated on the adjacent bottom plate of back-pressure steel plate 72 by described steel wire rope self-locking anchorage 13；Described
Floating back-pressure steel plate 7 on, be equipped with the through hole 8 through precompressed steel wire rope 5 in each precompressed steel wire rope 5 through position, should
The aperture of through hole 8 is more than the diameter of described precompressed steel wire rope 5.
Referring to Figure 14, above-mentioned steel wire rope self-locking anchorage 13 is identical with example 2.
Referring to Figure 11～15, in this example, the installation of land root precompressed steel wire rope 5 and tensioning method are also same as Example 2.
This example other other than the above implementation is same as Example 1.
Under ideal conditions, the vertical ripple of earthquake passes through earthquake isolating equipment to during building transmission, and 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 11, when erecting of earthquake
Overcome to dynamic loading produced by ripple antivibrator initial stiffness when, if this dynamic loading pushes along 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；As
Really, along the drop-down bottom plate of axis 2 of guide post 4, precompressed steel wire rope 5 is then by determining as steel wire rope break-in element for this dynamic loading
Pulley 15 is reversely sling floating back-pressure steel plate 7, compresses disk spring group 3 upwards, and bottom plate 2 moves down with ground, but still builds
Thing is motionless.As can be seen here, all compressible disk spring group 3 generation elastic deformation when P wave makes ground that up-down vibration to occur
And consume energy.
Claims (5)
1. the predeterminable butterfly spring antivibrator of a kind of rigidity, this antivibrator includes two end plates, sets between described two end plates
There is disk spring group, one of end plate is provided with guide post, this guide post passes separately along the centre bore of described disk spring group
One piece of end plate；Described disk spring group is made up of one group of disk spring overlapping；It is characterized in that,
It is additionally provided with backpressure device, this backpressure device includes the precompressed steel wire rope of more than three and pre- between described two end plates
The equal steel wire rope break-in element of compressed steel cord quantity and 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 the end plate of floating back-pressure steel plate around the axisymmetrical of described guide post
On；
Described precompressed steel wire rope is distributed in the surrounding of disk spring group, and of each precompressed steel wire rope with broken line state
It is fixed on floating back-pressure steel plate around the axisymmetrical of described guide post, other end passed around a relative steel wire rope break-in
Turn back after element, then from this precompressed steel wire rope, the fixing point on floating back-pressure steel plate is other exists through floating back-pressure Interal fixation
On the end plate adjacent with floating back-pressure steel plate；
On described floating back-pressure steel plate, it is equipped with logical through precompressed steel wire rope each precompressed steel wire penetrating position
Hole, the aperture of this through hole is more than the diameter of described precompressed steel wire rope；
By precompressed steel wire tensioning to tension force needed for default initial stiffness, described disk spring group is made to be clamped in all the time away from floating
Between the end plate of dynamic back-pressure steel plate and floating back-pressure steel plate.
2. a kind of predeterminable butterfly spring antivibrator of rigidity according to claim 1 is it is characterised in that this butterfly spring
Antivibrator is the antivibrator reinforced for building structure aseismatic.
3. a kind of predeterminable butterfly spring antivibrator of rigidity according to claim 1 is it is characterised in that this butterfly spring
Antivibrator is the vertical earthquake isolating equipment for Antiseismic building.
4. a kind of predeterminable butterfly spring antivibrator of the rigidity according to claim 1,2 or 3 is it is characterised in that described
Precompressed steel wire rope other end passed around described steel wire rope break-in element after turn back, be then passed through described floating back-pressure steel plate
Upper set through hole is fixed on and is floated on the adjacent end plate of back-pressure steel plate 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 at and floats on the adjacent end plate of back-pressure steel plate；Described installing hole is by one section of taper hole and one section of spiral shell
Pit forms, and wherein said taper hole is located at the side near floating back-pressure steel plate, and tip points to floating back-pressure steel plate, described spiral shell
Pit is located remotely from the side of floating back-pressure steel plate；
Described jaw is to match cone with described taper hole, and is made up of 3-5 lobe, and it is provided with clamping precompressed along axis in vivo
The clamping hole of steel wire rope；
Described check bolt is matched with described screwed hole, and is provided with straight with diameter greater than described precompressed steel wire rope in vivo along axis
The circular hole in footpath；
Described jaw is arranged in described taper hole, and check bolt is arranged on described screw thread in the hole.
5. a kind of predeterminable butterfly spring antivibrator of rigidity according to claim 4 is it is characterised in that described steel wire
Rope break-in element is fixed pulley, lifting bolt or U-shaped component.
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| CN201610903580.4A CN106437262A (en) | 2016-10-17 | 2016-10-17 | Disc-shaped spring damper with rigidity capable of being preset |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152098A (en) * | 2017-05-17 | 2017-09-12 | 大连大学 | It is classified shock-dampening method |
| 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 |
| CN109253932A (en) * | 2018-10-11 | 2019-01-22 | 东北大学 | A kind of variation rigidity elastic energy storage device and the method using its test Rock Failure |
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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 |
| CN201460241U (en) * | 2009-07-09 | 2010-05-12 | 北京公科固桥技术有限公司 | Prestress high-strength steel mesh anchorage |
| 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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| 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 |
| CN201460241U (en) * | 2009-07-09 | 2010-05-12 | 北京公科固桥技术有限公司 | Prestress high-strength steel mesh anchorage |
| CN102409777A (en) * | 2011-09-30 | 2012-04-11 | 福州大学 | Structural three-dimensional shock isolation and anti-overturning device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152098A (en) * | 2017-05-17 | 2017-09-12 | 大连大学 | It is classified shock-dampening method |
| CN107152098B (en) * | 2017-05-17 | 2019-04-19 | 大连大学 | It is classified shock-dampening method |
| 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 |
| CN109253932A (en) * | 2018-10-11 | 2019-01-22 | 东北大学 | A kind of variation rigidity elastic energy storage device and the method using its test Rock Failure |
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