CN106567322A - Helical compression spring damper with presettable initial stiffness - Google Patents
Helical compression spring damper with presettable initial stiffness Download PDFInfo
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- CN106567322A CN106567322A CN201610905604.XA CN201610905604A CN106567322A CN 106567322 A CN106567322 A CN 106567322A CN 201610905604 A CN201610905604 A CN 201610905604A CN 106567322 A CN106567322 A CN 106567322A
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- wire rope
- steel wire
- compression spring
- precompressed
- fairlead
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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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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- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The present invention relates to a helical compression spring damper with the presettable initial stiffness. The helical compression spring damper with the presettable initial stiffness is characterized in that a guide sleeve is further internally provided with a counter pressure device which comprises more than three preloaded wire ropes, wire rope turning components having the same number with the preloaded wire ropes, and a floating counter pressure steel plate, wherein the preloaded wire ropes are distributed in a center hole of a cylindrical helical compression spring in a fold line state, one end of each preloaded wire rope is symmetrically fixed on the floating counter pressure steel plate by winding the axis of the guide sleeve, and the other end of each preloaded wire rope turns back after penetrating and winding the oppose wire rope turning component, and then penetrates the floating counter pressure steel plate alongside the fixation point, on the floating counter pressure steel plate, of the wire rope turning component, to be fixed to a second end cover; and the preloaded wire ropes are tensioned to the tension required for the presettable initial stiffness, so that the helical compression spring damper is always clamped between a drive member and the floating counter pressure steel plate.
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 helical 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.Spiral bullet
Spring is widely used in the devices such as shock insulation, damping due to load and the linear variation rigidity characteristic of deformation.Spiral shell
Rotation spring is classified by using method, mainly has extension spring, stage clip, wherein application of the cylindrical helical compression spring in antivibrator most
Generally.But, a specific cylindrical helical compression spring can only operate in compressive state in effective working range.
Therefore, being currently used for wind resistance and earthquake-resistant antivibrator will at least use two cylindrical helical compression springs, or and other
The antivibrator (such as viscoelastic damper) of type is combined.But, it is this using many cylindrical helical compression springs or and its
The compound method of the antivibrator of its type can produce many negative problems, such as：1st, the damping of stretching with the compression of antivibrator is special
Property it is asymmetric, affect shock insulation, damping effect；2nd, volume is big, cannot install in small space；3rd, complex structure, production is difficult, into
This height；Etc..
Authorization Notice No. discloses a kind of wind resistance damping for building for the utility application of the U of CN 204081122
Spring-damper, the antivibrator is directed to two elastomers (i.e. two cylindrical helical springs) in set respectively on center shaft
Middle limiter assembly on, when antivibrator is tension or in compression, one of elastomer tension, another elastomer is pressurized, so as to
Realize wind resistance damping.But, the utility model patent is clearly present following shortcomings：1st, two cylindrical helical springs are needed, it is whole
The length of individual antivibrator is longer, is not suitable in space mounting in small distance；2nd, two even cannot can not be can guarantee that in technique
The rigidity (including tensible rigidity and compression stiffness) of spring is equal, therefore wind direction difference damping effect is difference；3rd, Wu Fagai
The rigidity of mutative damp device, reaches default wind resistance rank, reduces the purpose of damping cost；4th, a cylindrical helical spring exists simultaneously
Work under stretching and compression two states, the metal material and production technology of existing spring are difficult to meet and require, can only be by contracting
The regime of elastic deformation of roundlet cylindrical helical spring come realize stretching with compression two kinds of working conditions, this obviously can cause resource wave
Take.
Additionally, in antiseismic engineering, the initial stiffness of antivibrator is for wind load resistance, the anti-earthquake less than design seismic intensity
With reduce construction costs for be also highly important." one kind knot of the patent application publication of Publication No. CN 102409777A
Structure three-dimensional isolation and anti-overturning devices ", the device include be located at laminated rubber damping bearing bottom by cylindrical helical compression
The spring shock-proof bearing that spring is constituted, although the bearing is mainly a kind of three-dimensional isolation and anti-overturning devices, due to earthquake
Vertical ripple is two-way, therefore the device cannot isolate the negative wave that moment earth's surface is moved down.Additionally, also there is nothing in the device
Method changes the rigidity of antivibrator, reaches default antidetonation earthquake intensity, reduces the purpose of damping cost.
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 spiral compression spring antivibrator of predeterminable initial stiffness,
The antivibrator not only maintains effective active length of spiral compression spring, and both compressible passive energy dissipations, and stretchable consumption
Can vibration damping.
The present invention solves the technical scheme of above-mentioned technical problem：
A kind of spiral compression spring antivibrator of predeterminable initial stiffness, the antivibrator includes fairlead, the fairlead
One is provided with the first end cap, and other end is provided with the second end cap, and inside is coaxially provided with cylindrical helical compression spring；One drive member
Put in fairlead and acted on described cylindrical helical compression spring by the first end cap central；Characterized in that,
Backpressure device is additionally provided with described fairlead, 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 compressed steel cord quantity and one block of floating back-pressure steel plate, wherein,
Described floating back-pressure steel plate is located between cylindrical helical compression spring and the second end cap；
Described steel wire rope break-in element is fixed in described drive member around the axisymmetrical of described fairlead；
Described precompressed steel wire rope is distributed in the centre bore of cylindrical helical compression spring with broken line state, and each
One axisymmetrical around described fairlead of precompressed steel wire rope is fixed on floating back-pressure steel plate, and other end passed around relative
A steel wire rope break-in element after turn back, then by the fixing point from the precompressed steel wire rope on floating back-pressure steel plate through floating
Dynamic back-pressure Interal fixation is on second end cap；
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 tension force needed for precompressed steel wire tensioning to default initial stiffness, described cylindrical helical compression spring is made all the time
It is clamped between drive member and floating back-pressure steel plate.
The operation principle of above-mentioned spiral compression spring antivibrator is as follows：When dynamic loading is along the relative effect of axis of fairlead
When, described drive member compresses downwards cylindrical helical compression spring；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 cylindrical helical compression spring by steel wire rope break-in element.Thus may be used
See, no matter relative axial dynamic loading is or acts on spiral compression spring antivibrator opposite to each other, can compress cylindrical helical pressure
Contracting spring so as to elastic deformation occurs and consumes energy.
It is logical on the precompressed steel wire rope described in the course of work and the floating back-pressure steel plate from above-mentioned operation principle
The hole wall in hole can not produce friction, otherwise interfere with moving up and down for floating back-pressure steel plate, therefore the through-hole diameter compares institute
The diameter for stating precompressed steel wire rope is how many greatly, should be not disturbing and affect moving up and down for floating back-pressure steel plate to be advisable.
In such scheme, described steel wire rope break-in element is the suspension ring shape structure of common fixed pulley or similar break-in function
Part, such as lifting bolt, U-shaped component.
The spiral compression spring antivibrator of predeterminable initial stiffness of the present invention, wherein described precompressed steel wire rope two
Head can may also be employed similar lifting bolt system and connect fixation using being welded and fixed, but, if two is all using welding or suspension ring spiral shell
Nail system connects fixed dead, then to reach the purpose of default initial stiffness, must just precalculate and strictly control the pre- compressed steel
The default tension force of length ability of cord, and then reach the purpose of default initial stiffness.But, in actual production debugging process
In, to adopt the purpose that the method for controlling the precompressed rope capacity reaches default initial stiffness then to there are following two disasters
Topic, one is to weld or is that the process for connecing can produce error, even if two are to control welding or are error produced by the process for connecing, but
Steel wire rope also results in the change of its characterisitic parameter in cut-out, placement process.It is of the invention in order to solve above-mentioned technical barrier
One improvement project is：
The other end of described precompressed steel wire rope is fixed on the second end cap by steel wire rope self-locking anchorage；Described steel wire rope
Self-locking anchorage is made up of installing hole, jaw and check bolt, wherein,
Described installing hole is located on the second end cap；Described installing hole is made up of one section of taper hole and one section of screwed hole, its
Described in taper hole be located at side in fairlead, and tip is pointed in the fairlead, and the screwed hole is located at outside fairlead
Side；
Described jaw is to match cone with the taper hole, and is made up of 3-5 lobes, and it is provided with clamping along axis in vivo
The clamping hole of precompressed steel wire rope；
Described check bolt matches with the screwed hole, and is provided with diameter greater than the pre- steel wire along axis in vivo
The circular hole of rope diameter；
Described jaw is arranged in the taper hole, and check bolt is arranged in the screwed hole.
From above-mentioned improvement project, one of precompressed steel wire rope is fixed in floating counter, other end is by described
Steel wire rope self-locking anchorage clamping hole and circular hole in pass, so can the fag end system exposed be connected on traction stretching machine on,
Tension force is monitored using tension detecting instrument while tensioning is drawn.Needed for the precompressed steel wire tensioning to default initial stiffness
During tension force, the jaw is promoted to clamp precompressed steel wire rope and locked by turning check bolt, even if precompressed steel wire rope is anti-
Also will not loosen in the multiple vibration processes for being tensioned → relaxing → be tensioned → relax.
Spiral compression 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 spiral compression spring antivibrator of the scalable initial stiffness 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 cylindrical helical compression spring is equal
Can produce elastic compression deformation and consume energy, overcome conventional helical compression spring antivibrator can only compression consume energy shortcoming；
(2) after defensive ability/resistance ability of the dynamic loading more than antivibrator default initial stiffness, spiral compression 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 cylindrical helical spring, is significantly shorten
The length of antivibrator.
(5) length for presetting the precompressed steel wire rope is predeterminable antivibrator initial stiffness, and the cylindrical helical
Without a circle failure, i.e., effective active length is constant, will not change the original characteristic of cylindrical helical compression spring for compression spring
Parameter.
Description of the drawings
Fig. 1～5 are the structural representation of a specific embodiment of spiral compression spring antivibrator of the present invention
Figure, wherein, Fig. 1 is front view (Fig. 3 C-C rotations are cutd open), and Fig. 2 (omits pre- steel wire for A-A sectional views of Fig. 1
Rope), Fig. 3 is B-B sectional views (omitting precompressed steel wire rope) of Fig. 1, and Fig. 4 is the schematic enlarged-scale view of Fig. 1 local I, and Fig. 5 is Fig. 1 offices
The schematic enlarged-scale view in portion II.
Fig. 6～11 are the structural representation of second specific embodiment of spiral compression spring antivibrator of the present invention,
Wherein, Fig. 6 is front view (half-sectional), and Fig. 7 is D-D sectional views (omitting precompressed steel wire rope) of Fig. 6, and Fig. 8 is cutd open for the E-E of Fig. 6
View (omits precompressed steel wire rope), and Fig. 9 is F-F cutaway view Amplified images of Fig. 7, and Figure 10 is the schematic enlarged-scale view of Fig. 6 local III, is schemed
11 is G-G cutaway view Amplified images of Figure 10.
Figure 12～16 are the structural representation of the 3rd specific embodiment of spiral compression spring antivibrator of the present invention
Figure, wherein, Figure 12 is front view (Figure 14 J-J rotations are cutd open), and Figure 13 is H-H sectional views (omitting precompressed steel wire rope) of Figure 12,
Figure 14 is I-I sectional views (omitting precompressed steel wire rope) of Figure 12, and Figure 15 is the schematic enlarged-scale view of Figure 12 local IV, and Figure 16 is to scheme
The schematic enlarged-scale view of 12 local V.
Specific embodiment
Example 1
Referring to Fig. 1～5, the antivibrator described in this example is that a kind of vertical earthquake isolating equipment for Antiseismic building (is also referred to as erected
To shock isolating pedestal), it includes fairlead 1, the first end cap 2, the second end cap 3, cylindrical helical compression spring 4 and backpressure device.
Referring to Fig. 1～3, described fairlead 1 is circular tube shaped, and its upper end is radially shunk the center of being formed and has pilot hole
The first end cap 2, lower end extends radially outwards to form a ring flange 5.The second described end cap 3 is discoid, the edge of surrounding
Installing hole 6 is provided with, described fairlead 1 is fixed thereon the middle part on surface by the ring flange 5 set by lower end.
Referring to Fig. 1～3, described drive member is made up of dynamic pressure plate 7 and upper junction plate 8, wherein, upper junction plate 8 is circle
Plate-like, edge is provided with installing hole 6, and the center of lower surface extends downwardly the boss playing the guiding role, and the boss is by the first end cap 2
Set pilot hole is put in fairlead 1, and is fixed together with dynamic pressure plate 7 by screw.
Referring to Fig. 1～3, described cylindrical helical compression spring 4 is located in fairlead 1, the dynamic pressure plate 7 in drive member
Act on end face thereon.
Referring to Fig. 1～3, described backpressure device is located in fairlead 1, and its concrete scheme is as follows：
Referring to Fig. 1～5, described backpressure device is only used as hanging for steel wire rope break-in element by three precompressed steel wire ropes 9, three
Another six lifting bolts 10 of 10, one block of floating back-pressure steel plate 11 of ring screw and fixed precompressed steel wire rope 9 are constituted.Wherein,
Described floating back-pressure steel plate 11 is located between the end cap 3 of cylindrical helical compression spring 4 and second；
Described three are only used as the lifting bolt 10 of steel wire rope break-in element and fix around the axisymmetrical of described fairlead 1
On the dynamic pressure plate 7 of the drive member；
Axisymmetrical on the floating back-pressure steel plate 11 around fairlead 1 is provided with three lifting bolts 10, second end
The other three lifting bolt is correspondingly provided with lid 3 by the relative position of set three lifting bolts 10 on floating back-pressure steel plate 11
10；Three precompressed steel wire ropes 9 are located in the centre bore of cylindrical helical compression spring 4 with broken line state, and, each precompressed
One of steel wire rope 9 is to connect to be fixed on floating back-pressure steel plate 11 on set lifting bolt 10, and other end bypasses relative one
Turn back after lifting bolt 10 as steel wire rope break-in element, then the precompressed steel wire rope 9 set suspension ring spiral shell from the second end cap 3
The relative position of nail 10 passes through floating back-pressure steel plate 11, is to connect to be fixed on the second end cap 3 on set lifting bolt 10；Described
On floating back-pressure steel plate 11, the through hole 12 through precompressed steel wire rope 9 is equipped with through position in each precompressed steel wire rope 9, should
Diameter of the aperture of through hole 12 more than the precompressed steel wire rope 9.
Referring to Fig. 1～3, in order to realize the purpose of predeterminable initial stiffness, the installation of above-mentioned three precompressed steel wire ropes 9 and
Clamping method is as described below：(1) it is first true according to the coefficient of elasticity of the default initial stiffness of antivibrator and cylindrical helical compression spring 4
Determine the decrement of cylindrical helical compression spring 4, and then calculate each precompressed steel wire rope 9 and meet antivibrator initial stiffness and want
The length asked；(2) dynamic pressure plate 7 of cylindrical helical compression spring 4, the backpressure device and drive member is connected by Fig. 1～3
After good, cylindrical helical compression spring 4 is first compressed, expose the end cap of three lifting bolts 10 and second on floating back-pressure steel plate 11
Three through holes 12 on 3, then adjust repeatedly, make the physical length of each precompressed steel wire rope 9 equal with computational length, be then
It is connected on the lifting bolt 10 on the second end cap 3, and it is fixed dead with common rope cramp (not showing in figure), by cylindrical spiral shell
Rotation compression spring 4 is clamped in all the time between the dynamic pressure plate 7 of the drive member and floating back-pressure steel plate 11；(3) step (2) is filled
The part for preparing is put in fairlead 1, and is directed to set and 1 is fixed together with the second end cap 3, finally by upper junction plate 8 with move
Pressing plate 7 is fixed together, and obtains final product the coiled spring damper of described predeterminable initial stiffness.
Referring to Fig. 1～3, because antivibrator described in this example is vertical earthquake isolating equipment, therefore when precompressed steel wire rope 9 is tensioned then
The tension force sum for making three precompressed steel wire ropes 9 undertakes dead load equal to the antivibrator, can so ensure the antivibrator
Bidirectional elastic deformation it is symmetrical.
Referring to Fig. 1, the gap 14 more than amplitude is provided between the end cap 2 of upper junction plate 8 and first；In order to avoid vibration processes
Described in drive member the end cap 2 of dynamic pressure plate 7 and first between produce shock, be provided between the end cap 2 of the dynamic pressure plate 7 and first
Anticollision gap 13.
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：It is vertical when earthquake referring to Fig. 1
When dynamic loading produced by ripple overcomes the initial stiffness of antivibrator, if the dynamic loading above pushes away second along the axis of fairlead 1
End cap 3, the counteracting force of dynamic pressure plate 5 just compresses downwards cylindrical helical compression spring 4, and the second end cap 3 is built with moving on ground
Build thing motionless；If, along drop-down second end cap 3 of axis of fairlead 1, precompressed steel wire rope 9 is then by being used as steel wire rope for the dynamic loading
The lifting bolt 10 of break-in element is reversely sling floating back-pressure steel plate 11, and cylindrical helical compression spring 4, the second end are compressed upwards
Lid 3 is moved down with ground, but still building is motionless.As can be seen here, when P wave makes ground can press when there is up-down vibration
Contracting cylindrical helical compression spring produces elastic deformation and consumes energy.
Example 2
Referring to Fig. 6～11, the antivibrator described in this example is also a kind of vertical earthquake isolating equipment for Antiseismic building, and
Following some improvement has been substantially carried out on the basis of example 1：(1) precompressed steel wire rope 9 is increased to into the six roots of sensation by three；(2) will be used as steel
The lifting bolt 10 of cord break-in element replaces with U-shaped component 15；(3) by the lifting bolt of the fixed other end of precompressed steel wire rope 9
10 replace with steel wire rope self-locking anchorage 16；(4) middle part of the second end cap 3 is thickened and upwards protuberance forms inverted washbowl shape,
In order to install steel wire rope self-locking anchorage 16；(5) described backpressure device is changed accordingly to：
Described backpressure device be only used as by the precompressed steel wire rope 9, six of the six roots of sensation steel wire rope break-in element U-shaped component 15,
The lifting bolt 10 and six fixed precompressed steel wire ropes 9 of fixed 9 one, the precompressed steel wire rope of one block of floating back-pressure steel plate 11, six is another
The steel wire rope self-locking anchorage 16 of one is constituted；Wherein,
Floating back-pressure steel plate 11 is located between the end cap 3 of cylindrical helical compression spring 4 and second；
The six U-shaped components 15 for being only used as steel wire rope break-in element fix the drive around the axisymmetrical of described fairlead 1
On the dynamic pressure plate 7 of dynamic component；Referring to Fig. 9, described U-shaped component 15 is made up of round steel bending, the dynamic pressure plate 7 of the drive member
On, the circular hole matched with 15 two sides of U-shaped component, the U-shaped component 15 are provided with the relevant position for arranging U-shaped component 15
It is inserted in the circular hole, the two is welded and fixed together；
Axisymmetrical on the floating back-pressure steel plate 11 around fairlead 1 is provided with land lifting bolt 10, second end
On lid 3 land steel wire rope is correspondingly provided with from break adrift on the floating back-pressure steel plate 11 by the relative position of set land lifting bolt 10
Tool 16；Land root precompressed steel wire rope 9 is distributed in the centre bore of cylindrical helical compression spring 4 with broken line state, and, Mei Yigen
One of precompressed steel wire rope 9 is fixed on floating back-pressure steel plate 11 by lifting bolt 10, and other end passed around a relative work
Turn back after U-shaped component 15 for steel wire rope break-in element, then the precompressed steel wire rope 9 is from set lifting bolt on the second end cap 3
10 relative position passes through floating back-pressure steel plate 11, is fixed on the second end cap 3 by steel wire rope self-locking anchorage 16；Described floating
On back-pressure steel plate 11, the through hole 12 through precompressed steel wire rope 9, the through hole are equipped with through position in each precompressed steel wire rope 9
Diameter of 12 aperture more than the precompressed steel wire rope 9.
Referring to Figure 10 and Figure 11, in above-mentioned backpressure device, described steel wire rope self-locking anchorage 16 is by installing hole 16-1, jaw
16-2 and check bolt 16-3 is constituted, wherein, described installing hole 16-1 is located on the second end cap 3；Described installing hole 16-1
It is made up of one section of taper hole and one section of screwed hole, wherein the taper hole is located at the side in fairlead 1, and tip points to the guiding
In set 1, the screwed hole is located at the side outside fairlead 1；Described jaw 16-2 is to match cone with the taper hole, and
It is made up of 3 lobes, it is provided with vivo the clamping hole of clamping precompressed steel wire rope 9 along axis；Described check bolt 16-3 and the spiral shell
Pit matches, and is provided with the circular hole with diameter greater than the diameter of precompressed steel wire rope 9 along axis in vivo；Described jaw 16-2 is arranged on
In the taper hole, check bolt 16-3 is arranged in the screwed hole.
The dynamic pressure plate 7 of cylindrical helical compression spring 4, the backpressure device and drive member is connected by Fig. 6～11,
Then, cylindrical helical compression spring 4 is first compressed, exposes the end cap of six lifting bolts 10 and second on floating back-pressure steel plate 11
Six through holes 12 on 3, then, the clamping hole in the self-corresponding jaw 16-2 bodies in other end of corresponding precompressed steel wire rope 9 and
Pass in the circular hole of check bolt 16-3.Then the fag end system of the precompressed steel wire rope 9 for exposing is connected on traction stretching machine, and
The tension force of precompressed steel wire rope 9 is monitored while traction tensioning using tension detecting instrument.When the precompressed steel wire rope 9 be tensioned to it is default
Needed for initial stiffness during tension force, promote the jaw 16-2 that precompressed steel wire rope 9 is clamped and locked by turning check bolt 16-3
Extremely, so as to cylindrical helical compression spring 4 is clamped in all the time between floating back-pressure steel plate 11 and dynamic pressure plate 7.Finally, will assemble
Good part is put in fairlead 1, and is directed to set 1 and is fixed together with the second end cap 3, then by upper junction plate 8 and dynamic pressure plate 7
It is fixed together, obtains final product the coiled spring damper of described predeterminable initial stiffness.
This example other implementations other than the above are same as Example 1.
The operation principle for being used for the earthquake isolating equipment of Antiseismic building described in this example is same as Example 1, and the public can refer to example 1 voluntarily
Analysis.
Example 3
Referring to Figure 12～14, this example is a kind of antivibrator reinforced for building structure aseismatic, and the antivibrator includes being oriented to
Set 1, two of the fairlead 1 is respectively fixed with the first end cap 2 and the second end cap 3, and inside is provided with cylindrical helical compression spring
4, a drive member is put in described fairlead 1 by the center of the first end cap 2 of fairlead one and is pressed in the cylindrical helical
In compression spring 4；Wherein described drive member is made up of dynamic pressure plate 7 and the first drive rod 17 being connected with it, described
The end of the first drive rod 17 is provided with hinge hole 18.
Referring to Figure 12, the outside of second end cap 3 is provided with the second drive rod 19 being connected with it, second drive rod
19 end also is provided with hinge hole 18.
Referring to Figure 12～16, in described fairlead 1 backpressure device is provided with, the backpressure device by three precompressed steel wire ropes 9,
Three fixed 9 one, the precompressed steel wire ropes of 20, one block of fixed pulley floating back-pressure steel plate 11, three for being only used as steel wire rope break-in element
The steel wire rope self-locking anchorage 16 of lifting bolt 10 and three fixed other ends of precompressed steel wire rope 9 is constituted.Wherein,
Floating back-pressure steel plate 11 is located between the end cap 3 of cylindrical helical compression spring 4 and second, be which is provided with three and is passed through
The through hole 12 of precompressed steel wire rope 9, the aperture of the through hole 12 is more than the diameter of precompressed steel wire rope 9；
Three fixed pulleys 20 for being only used as steel wire rope break-in element fix the driving around the axisymmetrical of described fairlead 1
The lower surface being located on the dynamic pressure plate 7 of component in the centre bore of the cylindrical helical compression spring 4；Wherein, described fixed pulley
20 are hinged on support, and the support is welded on the dynamic pressure plate 7 of drive member；
Axisymmetrical on the floating back-pressure steel plate 11 around fairlead 1 is provided with three lifting bolts 10, second end
Three steel wire rope self-lockings are being correspondingly provided with lid 3 by the relative position of set three lifting bolts 10 with floating back-pressure steel plate 11
Anchorage 16；Three precompressed steel wire ropes 9 are located in the centre bore of cylindrical helical compression spring 4 with broken line state, and, Mei Yigen
One of precompressed steel wire rope 9 is to connect to be fixed on floating back-pressure steel plate 11 on set lifting bolt 10, and other end passed around relative
One be only used as being turned back after the fixed pulley 20 of steel wire rope break-in element, then the precompressed steel wire rope 9 is set from the second end cap 3 hangs
The relative position of ring screw 10 passes through floating back-pressure steel plate 11, is fixed on the second end cap 3 by steel wire rope self-locking anchorage 16；It is described
Floating back-pressure steel plate 11 on, the through hole 12 through precompressed steel wire rope 9 is equipped with through position in each precompressed steel wire rope 9,
Diameter of the aperture of the through hole 12 more than the precompressed steel wire rope 9.
Steel wire rope self-locking anchorage 16 in such scheme is identical with example 2, the antivibrator assemble method also with the class of example 2
Seemingly, the public can refer to example 2 and implement.
Referring to Figure 12, the operation principle of the antivibrator reinforced for building structure aseismatic described in this example is as follows：Set when being more than
The dynamic loading of meter dead load along fairlead 1 axis it is relative act on the first drive rod 17 and the second drive rod 19 when, it is described
The downward compression cylindrical helical compression spring 4 of dynamic pressure plate 7, hinge hole 18 is relative on the first drive rod 17 and the second drive rod 19
It is mobile；Drive when the dynamic loading more than design dead load acts on opposite to each other the first drive rod 17 and second along the axis of fairlead 1
When on bar 19, precompressed steel wire rope 9 by fixed pulley 20 reversely sling floating back-pressure steel plate 11 compress cylindrical helical compression spring
4, hinge hole 18 moves backward that (now, cylindrical helical compression spring 4 is still also on the first drive rod 17 and the second drive rod 19
The pressured state being in).As can be seen here, no matter relative axial dynamic loading is or acts on spiral compression spring antivibrator opposite to each other
On, cylindrical helical compression spring 4 can be compressed so as to elastic deformation occurs and consumes energy.
Claims (5)
1. a kind of spiral compression spring antivibrator of predeterminable initial stiffness, the antivibrator includes fairlead, the one of the fairlead
Head is provided with the first end cap, and other end is provided with the second end cap, and inside is coaxially provided with cylindrical helical compression spring；One drive member by
First end cap central puts in fairlead and acts on described cylindrical helical compression spring；Characterized in that,
Backpressure device is additionally provided with described fairlead, the backpressure device includes the precompressed steel wire rope of more than three and pre- compressed steel
The equal steel wire rope break-in element of cord quantity and one block of floating back-pressure steel plate, wherein,
Described floating back-pressure steel plate is located between cylindrical helical compression spring and the second end cap；
Described steel wire rope break-in element is fixed in described drive member around the axisymmetrical of described fairlead；
Described precompressed steel wire rope is distributed in the centre bore of cylindrical helical compression spring with broken line state, and each precompressed
One axisymmetrical around described fairlead of steel wire rope is fixed on floating back-pressure steel plate, and other end passed around relative one
Turn back after individual steel wire rope break-in element, it is then anti-through floating by the fixing point from the precompressed steel wire rope on floating back-pressure steel plate
Laminated steel is fixed on second end cap；
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 tension force needed for precompressed steel wire tensioning to default initial stiffness, described cylindrical helical compression spring is set to clamp all the time
Between drive member and floating back-pressure steel plate.
2. a kind of spiral compression spring antivibrator of predeterminable rigidity according to claim 1, it is characterised in that the spiral
Compression spring antivibrator is the antivibrator reinforced for building structure aseismatic.
3. a kind of spiral compression spring antivibrator of predeterminable rigidity according to claim 1, it is characterised in that the spiral
Compression spring antivibrator is the vertical earthquake isolating equipment for Antiseismic building.
4. the spiral compression spring antivibrator of a kind of predeterminable initial stiffness according to claim 1,2 or 3, its feature exists
In the other end of described precompressed steel wire rope is fixed on the second end cap by steel wire rope self-locking anchorage；Described steel wire rope self-locking
Anchorage is made up of installing hole, jaw and check bolt, wherein,
Described installing hole is located on the second end cap；Described installing hole is made up of one section of taper hole and one section of screwed hole, wherein institute
Side of the taper hole in fairlead is stated, and tip is pointed in the fairlead, the screwed hole is located at the side outside fairlead；
Described jaw is to match cone with the taper hole, and is made up of 3-5 lobes, and it is provided with clamping precompressed along axis in vivo
The clamping hole of steel wire rope；
Described check bolt matches with the screwed hole, and is provided with straight with diameter greater than the precompressed steel wire rope along axis in vivo
The circular hole in footpath；
Described jaw is arranged in the taper hole, and check bolt is arranged in the screwed hole.
5. a kind of spiral compression spring antivibrator of predeterminable initial stiffness according to claim 4, 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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| CN201610905604.XA CN106567322B (en) | 2016-10-17 | 2016-10-17 | A kind of spiral compression spring damper of predeterminable initial stiffness |
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| CN201610905604.XA CN106567322B (en) | 2016-10-17 | 2016-10-17 | A kind of spiral compression spring damper of predeterminable initial stiffness |
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| CN106567322B CN106567322B (en) | 2018-03-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110937535A (en) * | 2019-11-15 | 2020-03-31 | 兰州万里航空机电有限责任公司 | Steel wire rope tension regulator for umbrella belt recovery electric equipment |
| CN113789879A (en) * | 2021-09-07 | 2021-12-14 | 湖南省潇振工程科技有限公司 | Pulley type tuned mass eddy current damper |
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| CN200943268Y (en) * | 2006-09-11 | 2007-09-05 | 广州大学 | Improved tri-dimensional shock insulation device |
| CN101029538A (en) * | 2007-04-06 | 2007-09-05 | 北京工业大学 | Three-way shock-absorbing stand with variable rigidity and damping |
| US7757441B1 (en) * | 2002-10-25 | 2010-07-20 | Unisorb, Inc. | Apparatus for isolating and leveling a machine foundation |
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| JPH08105144A (en) * | 1994-10-04 | 1996-04-23 | Tokkyo Kiki Kk | Anchor device for floating slab and construction of floating slab |
| US7757441B1 (en) * | 2002-10-25 | 2010-07-20 | Unisorb, Inc. | Apparatus for isolating and leveling a machine foundation |
| CN200943268Y (en) * | 2006-09-11 | 2007-09-05 | 广州大学 | Improved tri-dimensional shock insulation device |
| CN101029538A (en) * | 2007-04-06 | 2007-09-05 | 北京工业大学 | Three-way shock-absorbing stand with variable rigidity and damping |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110937535A (en) * | 2019-11-15 | 2020-03-31 | 兰州万里航空机电有限责任公司 | Steel wire rope tension regulator for umbrella belt recovery electric equipment |
| CN113789879A (en) * | 2021-09-07 | 2021-12-14 | 湖南省潇振工程科技有限公司 | Pulley type tuned mass eddy current damper |
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|---|---|
| CN106567322B (en) | 2018-03-13 |
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Denomination of invention: Helical compression spring damper with presettable initial stiffness Effective date of registration: 20180912 Granted publication date: 20180313 Pledgee: Bank of Nanjing, Limited by Share Ltd, Nanjing branch Pledgor: NANJING DADE DAMPING TECHNOLOGY CO., LTD. Registration number: 2018320000178 |