CN106369096A - Counter pressure type disc spring damper with adjustable initial rigidity - Google Patents
Counter pressure type disc spring damper with adjustable initial rigidity Download PDFInfo
- Publication number
- CN106369096A CN106369096A CN201610905962.0A CN201610905962A CN106369096A CN 106369096 A CN106369096 A CN 106369096A CN 201610905962 A CN201610905962 A CN 201610905962A CN 106369096 A CN106369096 A CN 106369096A
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- China
- Prior art keywords
- steel wire
- wire rope
- disk spring
- antivibrator
- steel plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
- F16F7/116—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted on metal springs
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
- F16F3/10—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction
Abstract
The invention relates to a counter pressure type disc spring damper with the adjustable initial rigidity. The damper is characterized in that a counter pressure device is arranged inside a guide sleeve and comprises more than three pre-compression steel wire ropes, steel wire rope deflecting components with the same number as the pre-compression steel wire ropes, a steel wire rope self-locking and tensioning anchorage device and a floating counter pressure steel plate; the pre-compression steel wire ropes are distributed in a center hole of a disc spring set in the mode of a zigzag line, one ends of the pre-compression steel wire ropes are symmetrically fixed to the floating counter pressure steel plate around the axis of the guide sleeve, the other ends of the pre-compression steel wire ropes are deflected back after penetrating through the opposite steel wire rope deflecting components, then all the pre-compression steel wire ropes are combined to form a rope strand, and the rope strand penetrates through the floating counter pressure steel plate from the point where the axis of the guide sleeve passes on the floating counter pressure steel plate and is anchored to a second end cover by the steel wire rope self-locking and tensioning anchorage device; and when the pre-compression steel wire ropes are tensioned to reach the tension needed by the preset initial rigidity, the disc spring set is always clamped between a drive component and the floating counter 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 comprise the damping unit of disk spring.
Background technology
Antivibrator is the device of depletion kinergety in the way of the resistance providing motion.From nineteen seventies
Afterwards, antivibrator is progressively converted to the Structural Engineerings such as building, bridge, railway from space flight, aviation, military project, firearms, automobile and other industries
In.Disk spring due to its large carrying capacity, buffering vibration absorption ability are strong and the nonlinear characteristic of wider range and extensive
Be applied to all kinds of heavy duty shock insulations of occasions, in damping device.Disk spring is generally combined into disk spring group by multi-disc and uses, no
Same compound mode using effect is different；But the disk spring group no matter which kind of mode forms all can only compression.Therefore,
It is currently used for wind resistance and earthquake-resistant antivibrator at least will use two groups of disk springs, or with other types of antivibrator (such as
Viscoelastic damper) it is combined.But, this using multigroup disk spring or with other types of antivibrator be combined method meeting
Produce much negative problem, such as: 1, the stretching of antivibrator 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 effect of seismic wave is in multidirectional randomness, i.e. it is all random for acting on the size direction of power on building and frequency
, the antivibrator that thus be accordingly used in antidetonation need to meet following two requirements: one is that the characteristic frequency of antivibrator will be swashed with Seismic input
The resonance frequency domain encouraged staggers, and two is that the characteristic frequency of antivibrator will be staggered with the characteristic frequency of building or building structure.According to
The theory analysis of " butterfly spring fundamental characteristics Parameter analysis " author Yi Xianzhong, the natural frequency of vibration of monolithic butterfly spring(in formula, kpFor rigidity, msFor the quality of butterfly spring, m is to be connected the quality of object with butterfly spring, ξ
For equivalent quality transformation ratio) [see, " petroleum machinery " magazine, volume 23 the 3rd phase the 10th nineteen ninety-five to wait page 22] it is seen then that work as
After the Quality Design of the quality of butterfly spring and the object that is connected with butterfly spring is determined, the butterfly spring natural frequency of vibration square with upper
The rigidity stating butterfly spring is directly proportional.
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 includes shell, the load connecting rod being located inside the shell and two groups of disk springs, described, and described load connects
The middle part of bar is provided with the regulation gear being connected therewith, the load connecting rod of described regulation gear both sides is respectively equipped with load even
The left-handed nut of extension bar screw thread cooperation and right-handed nut, described two groups of disk springs are respectively provided at described left-handed nut and dextrorotation spiral shell
Female outside, and be clamped in respectively between described left-handed nut or right-handed nut and the shrouding of outer casing end.Switch is only needed to carry
Regulation gear in lotus connecting rod, makes described left-handed nut and right-handed nut mutually draw close or away from the dish-shaped bullet of i.e. two groups of scalable
The pretightning force of spring thus the damped coefficient of damping adjusting device, to meet the use demand of different frequency and various amplitude.But should
Invent and still there is following deficiency:
1st, described load connecting rod is to keep balance under the collective effect of two groups of disk springs, two groups of disk springs
Although pretightning force can be adjusted, adjust, two groups of disk springs are all one group to the active force of load connecting rod anyway
Power equal in magnitude, in opposite direction, only need to apply any external force in load connecting rod all can destroy this balance, make two groups of dish
Shape spring deforms, so described antivibrator cannot preset initial stiffness；
2nd, two groups of disk springs must be used cooperatively in this invention, all could be provided when antivibrator presses or draws load
Damping, this not only causes certain waste, so that the length of antivibrator is greatly increased, is not suitable for some installing spaces
Compact occasion uses.
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 to provide a kind of initial stiffness adjustable back pressure type disk spring antivibrator,
This antivibrator not only maintains effective active length of disk spring group, and only needs one group of disk spring, just both compressible consumptions
Energy vibration damping, and stretchable passive energy dissipation.
The technical scheme that the present invention solves above-mentioned technical problem is:
A kind of adjustable back pressure type disk spring antivibrator of initial stiffness, this antivibrator includes fairlead, this 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 disk spring group；One drive member is by first end
Lid center puts in fairlead and acts in described disk spring group, and wherein said disk spring group is by one group of disk spring
Vertically it is formed by stacking；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- in described fairlead
The equal steel wire rope break-in element of compressed steel cord quantity, a steel wire rope self-locking tensioning anchorage and one block of floating back-pressure steel plate, its
In,
Described floating back-pressure steel plate is located between disk spring group and the second end cap；
Described steel wire rope break-in element is fixed in described drive member around the axisymmetrical of described fairlead, and
Center in the hole positioned at described disk spring group；
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 composition, wherein:
A) the first self-centering locking fixture described in has a connecting seat, and the middle part of this connecting seat one end is provided with axially extended
Cylindrical boss, the internal of this boss is provided with, along axial line, the first taper jaw being made up of 3～5 claw pieces, and outer peripheral face is sheathed
There is tensioning swivel nut；Wherein, the microcephaly of described first tapered clamp points to connecting seat, and the outer peripheral face of described tensioning swivel nut is positive six sides
Shape；
B) the second self-centering locking fixture described in has a tapered sleeve, and the internal of this tapered sleeve is sequentially provided with by 3～5 along axis
Second taper jaw of claw piece composition and hollow bolt, wherein, the described head of hollow bolt and the second taper jaw
Relatively, the outer peripheral face of described tapered sleeve is regular hexagon to major part；
C) plane bearing described in is by the ball retainer assembly end face relative with tapered sleeve with being respectively provided at tensioning swivel nut
On ring raceway constitute, wherein said ring raceway matched with the ball in ball retainer assembly；
D) described second self-centering locking fixture is located at the outside of described tensioning swivel nut head, and the second taper jaw microcephaly
Consistent with the sensing of the first taper jaw microcephaly；Described plane bearing is located between described tensioning swivel nut and tapered sleeve, described
Anti- torsion compression spring is located in the endoporus of tensioning swivel nut；Turn round pressure through anti-between precompressed steel wire rope is by the calvus of the first taper jaw
After passing between the calvus of the centre bore of contracting spring and plane bearing and the second taper jaw, in the effect of precompressed steel wire rope tension
Under, described anti-turn round compression spring one acts on the first taper jaw, and other end acts on tapered sleeve；
Described precompressed steel wire rope is distributed in the center in the hole of disk spring group with broken line state, and each pre- steel wire
One axisymmetrical around described fairlead 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, then all of precompressed steel wire rope is listed as rope bundle fairlead axis warp from floating back-pressure steel plate
The point crossed, through floating back-pressure steel plate, is anchored on the second end cap by steel wire rope self-locking tensioning anchorage；Described floating back-pressure steel
On plate, described rope bundle through position be provided through the through hole of described rope bundle, the aperture of this through hole is more than the straight of described rope bundle
Footpath；
By precompressed steel wire tensioning to arranging tension force needed for initial stiffness, described disk spring group is made to be clamped in drive all the time
Between dynamic component and floating back-pressure steel plate.
The operation principle of above-mentioned antivibrator is as follows: when dynamic loading relatively acts on along the axis of fairlead, described driving
Component compresses downwards disk spring group；When dynamic loading acts on opposite to each other along the axis of fairlead, precompressed steel wire rope passes through steel wire rope
Break-in element is reversely sling floating back-pressure steel plate compression disk spring group.As can be seen here, no matter relatively or phase axial dynamic loading
The back of the body acts on antivibrator, can compress dish-shaped groups of springs so as to elastic deformation occurring and consuming 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 the rope bundle that precompressed steel wire rope forms side by side is how many greatly, not disturb and should affect moving up and down of floating back-pressure steel plate
It is 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 shape component etc..
The adjustable back pressure type disk spring antivibrator of initial stiffness of the present invention, wherein said precompressed steel wire rope is solid
One being scheduled on floating back-pressure steel plate can may also be employed similar lifting bolt system and connect fixation using being welded and fixed.
Antivibrator of the present invention, can be widely used for various one-dimensional fields, e.g., plant equipment internal vibration every
From, equipment Foundations shock insulation, building structure refer to seismic hardening, antidetonation of heavy construction etc..
The initial stiffness adjustable back pressure type disk spring antivibrator of the present invention has the advantages 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, the two-way bullet of antivibrator of the present invention
Property deformation symmetrical, therefore do not affect the effect of its compression power consumption because of the change of the positive negative direction of external applied load, for building knot
The Design of Reinforcement such as structure wind load resistance are provided convenience condition；
(3) as long as the length changing steel wire rope can change the initial stiffness of whole antivibrator, external force is overcoming this early stage
Antivibrator cannot be made before rigidity to be deformed, therefore used building vertical earthquake isolating when, predeterminable earthquake intensity, significantly
Reduce shock insulation cost；
(4) only can achieve two kinds of working conditions of stretching and compression with one group of disk spring, significantly shorten antivibrator
Length.
(5), during presetting initial stiffness, effective active length of described disk spring group is constant, will not change dish-shaped bullet
The original characterisitic parameter of spring group.
(6) the characteristic reasonable selection that butterfly spring can be utilized is preset early stage rigidity, and then is selected the characteristic frequency domain of antivibrator
Scope, avoids the frequency domain of the intrinsic frequency domain of building structure and vertically seismic wave, prevents from resonating.
(7) using steel wire rope self-locking tensioning anchorage, one of precompressed steel wire rope is fixed on the second end cap, one is can be right
The length of precompressed steel wire rope is adjusted, and two is to turn round compression spring and the synergy of the first self-centering locking fixture using anti-,
Can effectively prevent precompressed steel wire rope from twisting during carrying out length adjustment and changing the characterisitic parameter of steel wire rope.
Brief description
Fig. 1～5 are the structural representation of a specific embodiment of antivibrator of the present invention, and wherein, Fig. 1 is front view
(the c c rotation of Fig. 3 is cutd open), Fig. 2 is a a sectional view (omitting precompressed steel wire rope) of Fig. 1, and Fig. 3 is the b b sectional view of Fig. 1
(omitting precompressed steel wire rope), Fig. 4 is the schematic enlarged-scale view of Fig. 1 local, and Fig. 5 is the schematic enlarged-scale view of Fig. 1 local.
Fig. 6～10 are the structural representation of steel wire rope self-locking tensioning anchorage in the illustrated embodiment of Fig. 1～5, and wherein, Fig. 6 is
Front view (section view), in figure dotted line represents precompressed steel wire rope, and Fig. 7 is upward view, and Fig. 8 is the d d profile of Fig. 6, and Fig. 9 is Fig. 6
E e profile, Figure 10 be Fig. 6 f f sectional view.
Figure 11～14 are the structural representation of second specific embodiment of antivibrator of the present invention, wherein, Tu11Wei
Front view (section view), Figure 12 is the g g sectional view (omitting precompressed steel wire rope) of Figure 11, and Figure 13 is that the h h sectional view of Figure 11 (saves
Slightly precompressed steel wire rope), Figure 14 is the i i cutaway view Amplified image of Figure 12.
Figure 15～19 be antivibrator of the present invention the 3rd specific embodiment structural representation, wherein, Figure 15
For front view (the l l rotation of Figure 17 is cutd open), Figure 16 is the j j sectional view (omitting precompressed steel wire rope) of Figure 15, and Figure 17 is Figure 15
K k sectional view (omit precompressed steel wire rope), Figure 18 is the schematic enlarged-scale view of Figure 15 local, and Figure 19 is Figure 15 local
Schematic enlarged-scale view.
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 perpendicular
To shock isolating pedestal), it includes fairlead 1, the first end cap 2, the second end cap 3, disk spring group 4 and backpressure device.
Referring to Fig. 1～3, described fairlead 1 is circular tube shaped, and its upper end is radially shunk formation center and had pilot hole
The first end cap 2, lower end extend radially outwards formation one ring flange 5.The middle part of the second described end cap 3 is swelled formation upwards and is fallen
The washbowl shape put, the edge of surrounding is provided with installing hole 6, and it is grand that the ring flange 5 that described fairlead 1 passes through set by lower end is fixed on it
The upper surface at the middle part risen.
Referring to Fig. 1～3, described drive member is made up of dynamic pressure plate 7 and upper junction plate 8, and 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 this boss is by the first end cap 2
Set pilot hole puts in fairlead 1, and is fixed together with dynamic pressure plate 7 by screw.
Referring to Fig. 1～3, described disk spring group 4 is coaxially located in fairlead 1, and the dynamic pressure plate 7 in drive member acts on
End face thereon, wherein said disk spring group 4 is vertically formed by stacking two-by-two relatively by 16 disk springs.Referring to Fig. 1, upper company
It is provided with the gap 14 more than amplitude between fishplate bar 8 and the first end cap 2；Dynamic pressure in order to avoid drive member described in vibration processes
Produce between plate 7 and the first end cap 2 and clash into, between described dynamic pressure plate 7 and the first end cap 2, be provided with anticollision gap 13.
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 of steel wire rope break-in element by three precompressed steel wire ropes 9, three
10, one block of floating back-pressure steel plate 11 of ring screw, another three lifting bolts 10 of fixing precompressed steel wire rope 9 and a steel wire rope self-locking
Tensioning anchorage 15 forms.Wherein,
Described floating back-pressure steel plate 11 is located between disk spring group 4 and the second end cap 3；
The lifting bolt 10 that described three are only used as steel wire rope break-in element is fixed around the axisymmetrical of described fairlead 1
The lower surface of described disk spring group 4 center in the hole is located on the dynamic pressure plate 7 of described drive member.
Referring to Fig. 6～10, each steel wire rope self-locking tensioning anchorage 15 is by the first self-centering locking fixture, the second self-centering lock
Clamper, anti-torsion compression spring 15-1 and plane bearing 15-2 composition, wherein:
The first described self-centering locking fixture has a connecting seat 15-3, and the edge of this connecting seat 15-3 is provided with installing hole
15-12, the middle part of lower end is provided with axially extended cylindrical boss 15-4, and the internal of this boss 15-4 is provided with first along axial line
Taper hole 15-5, is provided with the first taper jaw 15-7 being made up of 3 claw pieces in this taper hole, the outer peripheral face of described boss 15-4 is sheathed
There is tensioning swivel nut 15-6, threaded therebetween；Wherein, the microcephaly of described first tapered clamp 15-7 points to connecting seat 15-3,
The outer peripheral face of described tensioning swivel nut 15-6 is regular hexagon；
The second described self-centering locking fixture has a tapered sleeve 15-8, internal being sequentially provided with along axis of this tapered sleeve 15-8
One section of second taper hole 15-13 and one section of screwed hole；Wherein, it is provided with, in the second taper hole 15-13, the second taper being made up of 3 claw pieces
Jaw 15-9, described screw thread in the hole is provided with hollow bolt 15-10, the head of hollow bolt 15-10 and the second taper jaw 15-
Relatively, the outer peripheral face of described tapered sleeve 15-8 is regular hexagon to 9 major part；
Described plane bearing 15-2 by ball retainer assembly 15-11 and is respectively provided at tensioning swivel nut 15-6 and tapered sleeve
Ring raceway on the relative end face of 15-8 is constituted, in wherein said ring raceway and ball retainer assembly 15-11
Ball matches；
Described second self-centering locking fixture is located at the outside of tensioning swivel nut 15-6 head, and the second taper jaw 15-9
Microcephaly is consistent with the sensing of the first taper jaw 15-7 microcephaly；Described plane bearing 15-2 be located at described tensioning swivel nut 15-6 with
Between tapered sleeve 15-8, described anti-torsion compression spring 15-1 is located in the endoporus of tensioning swivel nut 15-6.When precompressed steel wire rope 9 is by
Centre bore through anti-torsion compression spring 15-1 and plane bearing 15-2 and the second taper between the calvus of one taper jaw 15-7
After passing between the calvus of jaw 15-9, under precompressed steel wire rope 9 tension force effect, a described anti-work turning round compression spring 15-1
On the first taper jaw 15-7, other end acts on tapered sleeve 15-8.
Referring to Fig. 1 and Fig. 5, the connecting seat 15-3 of described steel wire rope self-locking tensioning anchorage 15 is fixed on the second end cap by screw
The lower surface at the middle part of 3 protuberances, and the distance of lower surface distance the second end cap 3 bottom surface at middle part of described second end cap 3 protuberance
Height more than described steel wire rope self-locking tensioning anchorage 15.
Referring to Fig. 1～5, on described floating back-pressure steel plate 11, the axisymmetrical around fairlead 1 is provided with three lifting bolts 10；
The outside of described second end cap 3, the position passed through in the axis of fairlead 1 is provided with described steel wire rope self-locking tensioning anchorage 15；Three
Root precompressed steel wire rope 9 is distributed in disk spring group 4 center in the hole with broken line state, and of each precompressed steel wire rope 9 is
Connect and be fixed on set lifting bolt 10 on floating back-pressure steel plate 11, other end passed around relative one as steel wire rope break-in
Turn back after the lifting bolt 10 of element, then three precompressed steel wire ropes 9 are listed as rope bundle fairlead 1 from floating back-pressure steel plate 11
Axis pass through position pass through floating back-pressure steel plate 11, be anchored on the second end cap 3 by steel wire rope self-locking tensioning anchorage 15；Institute
On the floating back-pressure steel plate 11 stated, it is provided through the through hole 12 of precompressed steel wire rope 9 through position in described rope bundle, this through hole 12
Aperture is more than the diameter of described rope bundle；On the second described end cap 3, it is provided with the anchoring of anchoring rope bundle through position in described rope bundle
Hole 3-1.
Referring to Fig. 1～5 and with reference to Fig. 6～10, in order to realize the purpose of predeterminable initial stiffness, above-mentioned three pre- steel wires
The installation of rope 9 and tensioning method are as described below: (1) first characteristic according to the default initial stiffness of antivibrator and disk spring group 4
Parameter, calculates the tension force that precompressed steel wire rope 9 meets antivibrator initial stiffness；(2) by Fig. 1, described antivibrator is assembled, make
The first taper jaw 15- from steel wire rope self-locking tensioning anchorage 15 restrainted by the rope that the other end of three precompressed steel wire ropes 9 forms side by side
7th, pass in the centre bore of the second taper jaw 15-9 and hollow bolt 15-10；Then, (3) are the precompressed steel wire rope 9 exposing
Fag end system is connected on traction stretching machine, and monitors the tension force of precompressed steel wire rope 9 while drawing tensioning using tension detecting instrument；
When described precompressed steel wire rope 9 is tensioned to tension force needed for default initial stiffness, move forward the second self-centering locking fixture, simultaneously
Regulation turn tensioning swivel nut 15-6 so that plane bearing 15-2 be clamped tightly at described tensioning swivel nut 15-6 and tapered sleeve 15-8 it
Between, and anti-torsion compression spring 15-1 compressed, tension force produced by it promotes the first taper jaw 15-7 reach by pre- steel wire
Rope 9 clamping, turning described hollow bolt 15-10 thereafter precompressed steel wire rope 9 will press from both sides extremely in the second taper jaw 15-9；?
Afterwards, remove traction stretching machine, block unnecessary precompressed steel wire rope 9, you can by disk spring group 4 be clamped in all the time dynamic pressure plate 7 with
Between floating back-pressure steel plate 11.
Referring to Fig. 1 and Fig. 6～10, in the work progress installing antivibrator or in routine maintenance procedure, if it find that in advance
The tension force of compressed steel cord 9 is not enough, you can the tensioning swivel nut 15-6 turning in steel wire rope self-locking tensioning anchorage 15 is adjusted.
Referring to Fig. 1～3, because antivibrator described in this example is vertical earthquake isolating equipment, therefore in tensioning precompressed steel wire rope 9 then
Make the tension force sum of three precompressed steel wire ropes 9 be more than or equal to the undertaken dead load of this antivibrator, so can ensure described resistance
The bidirectional elastic deformation of Buddhist nun's device is symmetrical.
Under ideal conditions, the vertical ripple of earthquake should be unable to be occurred to building during building transmission by earthquake isolating equipment
Displacement.Based on this, the operation principle of the earthquake isolating equipment of Antiseismic building described in this example is as follows: referring to Fig. 1, when the vertical ripple of earthquake
When produced dynamic loading overcomes the initial stiffness of antivibrator, if this dynamic loading above pushes away the second end along the axis of fairlead 1
Lid 3, the counteracting force of dynamic pressure plate 7 just compresses downwards disk spring group 4, and building is motionless with shifting on ground for the second end cap 3；As
Really, along drop-down second end cap 3 of axis of fairlead 1, precompressed steel wire rope 9 is then by as steel wire rope break-in element for this dynamic loading
Lifting bolt 10 is reversely sling floating back-pressure steel plate 11, compresses disk spring group 4 upwards, the second end cap 3 moves down with ground, but builds
Build thing still motionless.As can be seen here, all compressible disk spring group generation bullet when P wave makes ground that up-down vibration to occur
Property deformation and consume energy.
Example 2
Referring to Figure 11～14, the antivibrator described in this example is also a kind of vertical earthquake isolating equipment for Antiseismic building, and
It has been substantially carried out some improvement following on the basis of example 1: precompressed steel wire rope 9 is increased to the six roots of sensation by three by (1)；(2) using as
The lifting bolt 10 of steel wire rope break-in element replaces with u shape component 16；(3) described backpressure device is changed accordingly to:
Described backpressure device by the precompressed steel wire rope 9, six of the six roots of sensation be only used as the u shape component 16 of steel wire rope break-in element,
The lifting bolt 10 of 11, six fixing 9 one, precompressed steel wire ropes of one block of floating back-pressure steel plate and a fixing precompressed steel wire rope 9 are another
The steel wire rope self-locking tensioning anchorage 15 of one forms；Wherein,
Floating back-pressure steel plate 11 is located between disk spring group 4 and the second end cap 3；
The six u shape components 16 being only used as steel wire rope break-in element fix described drive around the axisymmetrical of described fairlead 1
The lower surface of described disk spring group 4 center in the hole is located on the dynamic pressure plate 7 of dynamic component；Referring to Figure 14, described u shape component 16
It is made up of round steel bending, on the dynamic pressure plate 7 of described drive member, be provided with and u shape component in the relevant position of setting u shape component 16
Article 16 two, the circular hole that side matches, described u shape component 16 is inserted in this circular hole, and the two is welded and fixed together；
On described floating back-pressure steel plate 11, the axisymmetrical around fairlead 1 is provided with six lifting bolts 10；Described second end
The outside of lid 3, the position passed through in the axis of fairlead 1 is provided with described steel wire rope self-locking tensioning anchorage 15；The pre- steel wire of the six roots of sensation
Rope 9 is distributed in disk spring group 4 center in the hole with broken line state, and of each precompressed steel wire rope 9 be connect be fixed on floating
On set lifting bolt 10 on dynamic back-pressure steel plate 11, other end passed around relative one as the u shape of steel wire rope break-in element
Turn back after component 16, then six roots of sensation precompressed steel wire rope 9 is listed as the axis process of bundle fairlead 1 from floating back-pressure steel plate 11 of restricting
Position pass through floating back-pressure steel plate 11, be anchored on the second end cap 3 by steel wire rope self-locking tensioning anchorage 15；Described floating is anti-
On laminated steel 11, it is provided through the through hole 12 of precompressed steel wire rope 9 through position in described rope bundle, the aperture of this through hole 12 is more than institute
State the diameter of rope bundle；On the second described end cap 3, it is provided with the anchor hole 3-1 of anchoring rope bundle through position in described rope bundle.
This example other other than the above implementation is same as Example 1.
The operation principle 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 15～17, this example is a kind of antivibrator for building structure aseismatic reinforcing, and this antivibrator includes guiding
Set 1, two of this fairlead 1 is respectively fixed with the first end cap 2 and the second end cap 3, and inside is provided with disk spring group 4, a driving
Component is put in described fairlead 1 by the first end cap 2 center of fairlead one and is pressed in described disk spring group 4；Wherein
Described drive member is made up of with the drive rod 17 that is connected with it dynamic pressure plate 7, and the end of described drive rod 17 is provided with hinge
Connect hole 18.
Referring to Figure 15, outside described second end cap 3 along fairlead 1 axisymmetrical be provided with parallel with two that it is connected
Otic placode 19, the end of this otic placode 19 also is provided with hinge hole 18.
Referring to Figure 15～19, in described fairlead 1, be provided with backpressure device, this backpressure device by three precompressed steel wire ropes 9,
Three fixing 9 one, the precompressed steel wire ropes of 20, one block of floating back-pressure steel plate of fixed pulley 11, three being only used as steel wire rope break-in element
The steel wire rope self-locking tensioning anchorage 15 of lifting bolt 10 and fixing precompressed steel wire rope 9 other end forms.Wherein,
Floating back-pressure steel plate 11 is located between disk spring group 4 and the second end cap 3；
Three fixed pulleys 20 being only used as steel wire rope break-in element fix described driving around the axisymmetrical of described fairlead 1
The lower surface of described disk spring group 4 center in the hole is located on the dynamic pressure plate 7 of component；Wherein, described fixed pulley 20 is hinged on
On support, this support is welded on the dynamic pressure plate 7 of drive member；
On described floating back-pressure steel plate 11, the axisymmetrical around fairlead 1 is provided with three lifting bolts 10；Described second end
The outside of lid 3, the position passed through in the axis of fairlead 1 is provided with described steel wire rope self-locking tensioning anchorage 15；Three pre- steel wires
Rope 9 is distributed in disk spring group 4 center in the hole with broken line state, and of each precompressed steel wire rope 9 be connect be fixed on floating
On set lifting bolt 10 on dynamic back-pressure steel plate 11, other end passed around relative one and determined cunning as steel wire rope break-in element
Turn back after wheel 20, then three precompressed steel wire ropes 9 are listed as the axis process of bundle fairlead 1 from floating back-pressure steel plate 11 of restricting
Position passes through floating back-pressure steel plate 11, is anchored on the second end cap 3 by steel wire rope self-locking tensioning anchorage 15；Described floating back-pressure
On steel plate 11, it is provided through the through hole 12 of precompressed steel wire rope 9 through position in described rope bundle, the aperture of this through hole 12 is more than described
The diameter of rope bundle；On the second described end cap 3, it is provided with the anchor hole 3-1 of anchoring rope bundle through position in described rope bundle.
Steel wire rope self-locking tensioning anchorage 15 in such scheme is identical with example 1, and the public can refer to example 1 and implements.
Referring to Figure 15, the operation principle of the antivibrator reinforced for building structure aseismatic described in this example is as follows: when more than setting
The dynamic loading of meter dead load along the axis of fairlead 1 relatively act on drive rod 17 and otic placode 19 when, described dynamic pressure plate 7 to
Lower compression disk spring group 4, hinge hole 18 relative movement on drive rod 17 and otic placode 19；When the dynamic loading more than design dead load
Along the axis of fairlead 1 act on opposite to each other on drive rod 17 and otic placode 19 when, precompressed steel wire rope 9 is reversely sling by fixed pulley 20
Floating back-pressure steel plate 11 compresses dish-shaped groups of springs 4, and on drive rod 17 and otic placode 19, hinge hole 18 moves backward (now, dish-shaped bullet
Spring group 4 still also in pressured state).As can be seen here, no matter axial dynamic loading acts on initial stiffness relatively or opposite to each other
On adjustable back pressure type disk spring antivibrator, dish-shaped groups of springs 4 can be compressed so as to elastic deformation occurring and consuming energy.
Claims (4)
1. the adjustable back pressure type disk spring antivibrator of a kind of initial stiffness, this antivibrator includes fairlead, and the one of this 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 disk spring group；One drive member is by the first end cap
Center puts in fairlead and acts in described disk spring group, and wherein said disk spring group is erected by one group of disk spring
To being formed by stacking；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- compressed steel in described fairlead
The equal steel wire rope break-in element of cord quantity, a steel wire rope self-locking tensioning anchorage and one block of floating back-pressure steel plate, wherein,
Described floating back-pressure steel plate is located between disk spring group and the second end cap；
Described steel wire rope break-in element is fixed in described drive member around the axisymmetrical of described fairlead, and is located at
The center in the hole of described disk spring group；
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 composition, wherein:
A) the first self-centering locking fixture described in has a connecting seat, and the middle part of this connecting seat one end is provided with axially extended cylinder
Shape boss, the internal of this boss is provided with, along axial line, the first taper jaw being made up of 3～5 claw pieces, and outer peripheral face is arranged with to be opened
Tight swivel nut；Wherein, the microcephaly of described first tapered clamp points to connecting seat, and the outer peripheral face of described tensioning swivel nut is regular hexagon；
B) the second self-centering locking fixture described in has a tapered sleeve, and the internal of this tapered sleeve is sequentially provided with by 3～5 claws along axis
Second taper jaw of piece composition and hollow bolt, wherein, the major part of the described head of hollow bolt and the second taper jaw
Relatively, the outer peripheral face of described tapered sleeve is regular hexagon；
C) plane bearing described in is by the ball retainer assembly end face relative with tapered sleeve with being respectively provided at tensioning swivel nut
Ring raceway is constituted, and wherein said ring raceway is matched with the ball in ball retainer assembly；
D) described second self-centering locking fixture is located at the outside of described 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 described tensioning swivel nut and tapered sleeve, described anti-torsion
Compression spring is located in the endoporus of tensioning swivel nut；Turn round compression bullet through anti-between precompressed steel wire rope is by the calvus of the first taper jaw
After passing between the calvus of the centre bore of spring and plane bearing and the second taper jaw, under the effect of precompressed steel wire rope tension,
Described anti-turn round compression spring one acts on the first taper jaw, and other end acts on tapered sleeve；
Described precompressed steel wire rope is distributed in the center in the hole of disk spring group with broken line state, and each precompressed steel wire rope
One axisymmetrical around described fairlead 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 all of precompressed steel wire rope is listed as restricting what bundle fairlead axis from floating back-pressure steel plate passed through
Point, through floating back-pressure steel plate, is anchored on the second end cap by steel wire rope self-locking tensioning anchorage；On described floating back-pressure steel plate,
Described rope bundle through position be provided through the through hole of described rope bundle, the aperture of this through hole is more than the diameter of described rope bundle；
By precompressed steel wire tensioning to arranging tension force needed for initial stiffness, described disk spring group is made to be clamped in driving structure all the time
Between part and floating back-pressure steel plate.
2. a kind of adjustable back pressure type disk spring antivibrator of initial stiffness according to claim 1 was it is characterised in that should
Back pressure type disk spring antivibrator is the antivibrator reinforced for building structure aseismatic.
3. a kind of adjustable back pressure type disk spring antivibrator of initial stiffness according to claim 1 was it is characterised in that should
Back pressure type disk spring antivibrator is the vertical earthquake isolating equipment for Antiseismic building.
4. a kind of initial stiffness adjustable back pressure type disk spring antivibrator according to claim 1,2 or 3, its feature exists
In described steel wire rope break-in element is fixed pulley, lifting bolt or u shape component.
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| CN107117427A (en) * | 2017-06-16 | 2017-09-01 | 滨州学院 | Upper volume track buffering device |
| CN109695302A (en) * | 2018-12-29 | 2019-04-30 | 上海应用技术大学 | A kind of assembling type steel structure building shock absorption energy consuming device |
| CN109707778A (en) * | 2019-03-05 | 2019-05-03 | 中国船舶重工集团公司第七0三研究所 | A kind of drive-in gas-turbine installation nonlinear elasticity shock resistance limiter |
| CN109737169A (en) * | 2019-03-02 | 2019-05-10 | 葛成侠 | A kind of engineering truck automobile absorber |
| 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 |
| CN116652994A (en) * | 2023-07-31 | 2023-08-29 | 南通固邦数控机床有限公司 | Turnover type adjustable manipulator for industrial production and application method thereof |
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| CN109737169B (en) * | 2019-03-02 | 2020-12-22 | 阜阳正林新能源科技有限公司 | Automobile shock absorber for engineering vehicle |
| CN109707778A (en) * | 2019-03-05 | 2019-05-03 | 中国船舶重工集团公司第七0三研究所 | A kind of drive-in gas-turbine installation nonlinear elasticity shock resistance limiter |
| CN109707778B (en) * | 2019-03-05 | 2024-04-09 | 中国船舶重工集团公司第七0三研究所 | Nonlinear elastic impact-resistant limiter of propulsion type gas turbine device |
| 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 |
| CN116652994A (en) * | 2023-07-31 | 2023-08-29 | 南通固邦数控机床有限公司 | Turnover type adjustable manipulator for industrial production and application method thereof |
| CN116652994B (en) * | 2023-07-31 | 2023-10-10 | 南通固邦数控机床有限公司 | Turnover type adjustable manipulator for industrial production and application method thereof |
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Denomination of invention: Counter pressure type disc spring damper with adjustable initial rigidity Effective date of registration: 20180912 Granted publication date: 20180223 Pledgee: Bank of Nanjing, Limited by Share Ltd, Nanjing branch Pledgor: NANJING DADE DAMPING TECHNOLOGY CO., LTD. Registration number: 2018320000178 |