CN106369096B - A kind of adjustable back pressure type disk spring damper of initial stiffness - Google Patents
A kind of adjustable back pressure type disk spring damper of initial stiffness Download PDFInfo
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- CN106369096B CN106369096B CN201610905962.0A CN201610905962A CN106369096B CN 106369096 B CN106369096 B CN 106369096B CN 201610905962 A CN201610905962 A CN 201610905962A CN 106369096 B CN106369096 B CN 106369096B
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- steel wire
- wire rope
- disk spring
- precompressed
- guide sleeve
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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
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (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 kind of adjustable back pressure type disk spring damper of initial stiffness, it is characterized in that, backpressure device is additionally provided with guide sleeve, the backpressure device includes the precompressed steel wire rope of more than three, the steel wire rope deflecting element one steel wire rope self-locking tensioning anchorage equal with precompressed steel wire rope quantity and one block of floating back-pressure steel plate, wherein described precompressed steel wire rope is distributed in the centre bore of disk spring group with broken line state, and an axisymmetrical around described guide sleeve of each precompressed steel wire rope is fixed on floating back-pressure steel plate, other end was turned back after passing around a relative steel wire rope deflecting element, then all precompressed steel wire ropes are listed as restricting point that beam passes through from guide sleeve axis on floating back-pressure steel plate through floating back-pressure steel plate, it is anchored at by steel wire rope self-locking tensioning anchorage on the second end cap；By tension force needed for precompressed steel wire tensioning to default initial stiffness, disk spring group is set to be clamped in all the time between drive member and floating back-pressure steel plate.
Description
Technical field
The present invention relates to one kind building vibration proof (or vibrations) device, and in particular to the damping unit comprising disk spring.
Background technology
Damper is the device of the depletion kinergety in a manner of providing the resistance of motion.From nineteen seventies
Afterwards, damper 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 is due to its large carrying capacity, buffering vibration absorption ability is strong and the nonlinear characteristic of wider range and it is extensive
In shock insulation, damping device applied to all kinds of heavily loaded occasions.Disk spring is generally combined into disk spring group by multi-disc and used, no
Same combination using effect is different；But no matter the disk spring group which kind of mode forms can only compression.Therefore,
Two groups of disk springs will at least be used by being currently used for wind resistance and earthquake-resistant damper, or with other types of damper (such as
Viscoelastic damper) it is compound.It is but this using multigroup disk spring or the method meeting compound with other types of damper
The problem of many negative is produced, such as：1st, the damping characteristic of stretching with the compression of damper is asymmetric, influences shock insulation, damping effect；
2nd, volume is big, can not be installed in small space；3rd, complicated, production is difficult, and cost is high；Etc..
The effect of seismic wave is in multidirectional randomness, i.e. it is all random to act on the size direction of power on building and frequency
, thus be accordingly used in the damper of antidetonation need to meet following two requirements：First, the characteristic frequency of damper will swash with Seismic input
The resonance frequency domain encouraged staggers, second, the characteristic frequency of damper will stagger with building or the characteristic frequency of building structure.According to
《Butterfly spring fundamental characteristics Parameter analysis》Author Yi Xianzhong theory analysis, the natural frequency of vibration of monolithic butterfly spring(in formula, KpFor rigidity, msFor the quality of butterfly spring, m is the quality of object of being connected with butterfly spring, ξ
For equivalent quality transformation ratio) [see,《Petroleum machinery》Magazine, the phase the 10th of volume 23 the 3rd nineteen ninety-five to wait page 22], it is seen then that when
After the quality of butterfly spring and the Quality Design for the object that is connected with butterfly spring determine, the butterfly spring natural frequency of vibration square with it is upper
The rigidity for stating butterfly spring is directly proportional.
Publication No. CN1932324A application for a patent for invention discloses a kind of " adjustable disc-shape spring mechanical damping resistance
Buddhist nun's device ", the damper includes shell, the load connecting rod being located in shell and two groups of disk springs, described, the load connection
The middle part of bar is provided with adjustment gear connected therewith, is respectively equipped with the load connecting rod of the adjustment gear both sides and connects with load
The left-handed nut and right-handed nut, two groups of disk springs that extension bar screw thread coordinates are respectively provided at the left-handed nut and dextrorotation spiral shell
Female outside, and be clamped in respectively between the left-handed nut or right-handed nut and the shrouding of outer casing end.Only switch is needed to carry
Adjustment gear in lotus connecting rod, the left-handed nut and right-handed nut is set mutually to draw close or away from i.e. adjustable two groups of dish bullets
The pretightning force of spring is so as to adjust the damped coefficient of damper, to meet the use demand of different frequency and various amplitude.But should
Invention still has following deficiency：
1st, the load connecting rod is that balance is kept under the collective effect of two groups of disk springs, two groups of disk springs
Although pretightning force can be adjusted, adjust anyway, two groups of disk springs are all one group to the active force of load connecting rod
Power equal in magnitude, in opposite direction, only need to apply any external force in load connecting rod can all destroy this balance, make two groups of dish
Shape spring deforms, so described damper can not preset initial stiffness；
2nd, two groups of disk springs must be used cooperatively in the invention, could all be provided when damper is pressed or draws load
Damping, this not only causes certain waste, also the length of damper is greatly added, and is not suitable for some installing spaces
Compact occasion uses.
Publication No. CN101457553A application for a patent for invention discloses one kind, and " spring stiffness adjustable tuning quality subtracts
Shake device ", the shock absorber is a kind of composite buffer, and the thickness by changing mass changes its characteristic frequency, viscous by changing
The flow of the working media of stagnant damper changes its damping ratio, changes its rigidity by the effective active length for changing spring, its
The means of the middle effective active length for changing spring have three kinds, first, using one section of curing materials by spring in solidification cylinder
Solidification, second, toward constraint block, and the two interference fit is filled in the center of helical spring, make the one section of spring contacted with constraint block
Failure, third, setting helical raised on constraint block surface, between helical raised is stuck in into spring wire, make 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 stretches passive energy dissipation.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of adjustable back pressure type disk spring damper of initial stiffness,
The damper 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 present invention solve above-mentioned technical problem technical scheme be：
A kind of adjustable back pressure type disk spring damper of initial stiffness, the damper include guide sleeve, the guide sleeve
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 guide sleeve and acted in described disk spring group, wherein the disk spring group is by one group of disk spring
Vertically it is formed by stacking；Characterized in that,
Backpressure device is additionally provided with described guide sleeve, the backpressure device is including the precompressed steel wire rope of more than three and in advance
The equal steel wire rope deflecting 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 deflecting element is fixed on around the axisymmetrical of described guide sleeve in described drive member, and
In the centre bore of the disk spring group；
Described steel wire rope self-locking is tensioned anchorage by the first self-centering locking fixture, the second self-centering locking fixture, anti-torsion
Compression spring and plane bearing composition, wherein：
A the first self-centering locking fixture described in) has a connecting seat, and the middle part of the connecting seat one end is provided with axially extending
Cylindrical boss, the first taper clamping jaw being made up of 3~5 claw pieces is provided with inside the boss along axial line, and outer peripheral face is arranged
There is tensioning swivel nut；Wherein, the microcephaly of first tapered clamp points to connecting seat, and the outer peripheral face of the tensioning swivel nut is positive six side
Shape；
B the second self-centering locking fixture described in) has a tapered sleeve, is sequentially provided with inside the tapered sleeve along axis by 3~5
The the second taper clamping jaw and hollow bolt of claw piece composition, wherein, the head of described hollow bolt and the second taper clamping jaw
Major part is relative, and the outer peripheral face of the tapered sleeve is regular hexagon；
C the plane bearing described in) by ball-retainer component and is respectively provided at the tensioning swivel nut end face relative with tapered sleeve
On ring raceway form, wherein described ring raceway matches with the ball in ball-retainer component；
D) the second self-centering locking fixture is located at the outside on the tensioning swivel nut head, and the second taper clamping jaw microcephaly
It is consistent with the sensing of the first taper clamping jaw microcephaly；Described plane bearing is described between the tensioning swivel nut and tapered sleeve
Anti- compression spring of turning round is located in the endoporus of tensioning swivel nut；When precompressed steel wire rope between the calvus of the first taper clamping jaw through anti-turn round by pressing
After being passed between the calvus of the centre bore and the second taper clamping jaw of contracting spring and plane bearing, acted in precompressed steel wire rope tension
Under, anti-turn round compression spring one is acted on the first taper clamping jaw, and other end is acted on tapered sleeve；
Described precompressed steel wire rope is distributed in the centre bore of disk spring group with broken line state, and each pre- steel wire
One axisymmetrical around described guide sleeve of rope is fixed on floating back-pressure steel plate, and other end passed around a relative steel
Turned back after cord deflecting element, then all precompressed steel wire ropes be listed as restrict beam passed through from guide sleeve axis on floating back-pressure steel plate
The point crossed is anchored on the second end cap through floating back-pressure steel plate by steel wire rope self-locking tensioning anchorage；Described floating back-pressure steel
On plate, the through hole of the rope beam is provided through in the position that the rope beam passes through, the aperture of the through hole is more than the straight of the rope beam
Footpath；
By tension force needed for precompressed steel wire tensioning to setting initial stiffness, described disk spring group is set to be clamped in drive all the time
Move between component and floating back-pressure steel plate.
The operation principle of above-mentioned damper is as follows：When axis of the dynamic loading along guide sleeve is relative to be acted on, described driving
Component compresses downwards disk spring group；When dynamic loading acts on opposite to each other along the axis of guide sleeve, precompressed steel wire rope passes through steel wire rope
Deflecting element reversely slings floating back-pressure steel plate compression disk spring group.As can be seen here, no matter relative axial dynamic loading is or phase
The back of the body is acted on damper, can be compressed disk spring group, be brought it about elastic deformation and consume energy.
From above-mentioned operation principle, the precompressed steel wire rope described in the course of work and leading on the floating back-pressure steel plate
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
It is how many greatly to state the diameter for the rope beam that precompressed steel wire rope forms side by side, should be not disturb and influence moving up and down for floating back-pressure steel plate
It is advisable.
In such scheme, described steel wire rope deflecting element is common fixed pulley or the suspension ring shape structure of similar deflecting function
Part, such as lifting bolt, U-shaped component.
The adjustable back pressure type disk spring damper of initial stiffness of the present invention, wherein described precompressed steel wire rope is consolidated
One be scheduled on floating back-pressure steel plate can use and be welded and fixed, and also similar lifting bolt system can be used to connect fixation.
Damper 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, the antidetonation for referring to seismic hardening, heavy construction etc. of building structure.
The adjustable back pressure type disk spring damper of initial stiffness of the present invention has the advantages that compared with prior art：
(1) external force is applied along axis, no matter the external force is pressure or pulling force, and described disk spring group can produce bullet
Property compression and consume energy, overcome classical dish-like shapes spring-damper can only compression power consumption the shortcomings that；
(2) after dynamic loading, which is more than damper, presets the defensive ability/resistance ability of initial stiffness, the two-way bullet of damper of the present invention
Property deformation it is symmetrical, therefore the effect of its compression power consumption is not influenceed because of the change of the positive negative direction of external applied load, is tied for building
The Design of Reinforcement such as structure wind load resistance are provided convenience condition；
(3) as long as the length for changing steel wire rope can change the initial stiffness of whole damper, external force is overcoming the early stage
When can not be deformed damper before rigidity, therefore it being used into the vertical earthquake isolating of building, predeterminable earthquake intensity, significantly
Reduce shock insulation cost；
(4) two kinds of working conditions of stretching and compression only can be achieved with one group of disk spring, significantly shorten damper
Length.
(5) during presetting initial stiffness, effective active length of the disk spring group is constant, will not change dish-shaped bullet
The original characterisitic parameter of spring group.
(6) early stage rigidity is preset using the characteristic reasonable selection of butterfly spring, and then selects the characteristic frequency domain of damper
Scope, the intrinsic frequency domain of building structure and the vertically frequency domain of seismic wave are avoided, prevents from resonating.
(7) one of precompressed steel wire rope is fixed on the second end cap using steel wire rope self-locking tensioning anchorage, first, can be right
The length of precompressed steel wire rope is adjusted, second, the synergy of anti-torsion compression spring and the first self-centering locking fixture is utilized,
It can effectively prevent precompressed steel wire rope from being twisted during length adjustment is carried out and changing the characterisitic parameter of steel wire rope.
Brief description of the drawings
Fig. 1~5 are the structural representation of a specific embodiment of damper of the present invention, wherein, Fig. 1 is front view
(Fig. 3 C-C rotations are cutd open), A-A sectional views (omitting precompressed steel wire rope) that Fig. 2 is Fig. 1, Fig. 3 is Fig. 1 B-B sectional views
(omitting precompressed steel wire rope), Fig. 4 are Fig. 1 local I schematic enlarged-scale view, and Fig. 5 is Fig. 1 local II schematic enlarged-scale view.
Fig. 6~10 are the structural representation that steel wire rope self-locking is tensioned anchorage in the illustrated embodiment of Fig. 1~5, wherein, Fig. 6 is
Front view (section view), dotted line represents precompressed steel wire rope in figure, and Fig. 7 is upward view, and Fig. 8 is Fig. 6 D-D profiles, Fig. 9 Fig. 6
E-E profiles, Figure 10 be Fig. 6 F-F sectional views.
Figure 11~14 are the structural representation of second specific embodiment of damper of the present invention, wherein, Tu11Wei
Front view (section view), G-G sectional views (omitting precompressed steel wire rope) that Figure 12 is Figure 11, H-H sectional views that Figure 13 is Figure 11 (save
Slightly precompressed steel wire rope), Figure 14 is Figure 12 I-I cutaway view Amplified images.
Figure 15~19 are the structural representation of the 3rd specific embodiment of damper of the present invention, wherein, Figure 15
For front view (Figure 17 L-L rotations are cutd open), J-J sectional views (omitting precompressed steel wire rope) that Figure 16 is Figure 15, Figure 17 Figure 15
K-K sectional views (omit precompressed steel wire rope), Figure 18 is Figure 15 local III schematic enlarged-scale view, and Figure 19 is Figure 15 local IV
Schematic enlarged-scale view.
Embodiment
Example 1
Referring to Fig. 1~5, the damper described in this example is (also referred to as perpendicular for a kind of vertical earthquake isolating equipment for Antiseismic building
To shock isolating pedestal), it includes guide sleeve 1, the first end cap 2, the second end cap 3, disk spring group 4 and backpressure device.
Referring to Fig. 1~3, described guide sleeve 1 is circular tube shaped, and the center of being formed radially is shunk in its upper end has pilot hole
The first end cap 2, lower end extends radially outwards to form a ring flange 5.Formation is swelled upwards and is fallen in the middle part of the second described end cap 3
The washbowl shape put, the edge of surrounding are provided with mounting hole 6, and it is grand that described guide sleeve 1 by the ring flange 5 set by lower end is fixed on its
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, wherein, upper junction plate 8 is circle
Plate-like, edge are provided with mounting 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 guide sleeve 1, and is fixed together by screw and dynamic pressure plate 7.
Referring to Fig. 1~3, described disk spring group 4 is coaxially located in guide sleeve 1, and the dynamic pressure plate 7 in drive member acts on
In its upper surface, wherein the disk spring group 4 is vertically formed by stacking relatively two-by-two by 16 disk springs.Referring to Fig. 1, upper company
The gap 14 more than amplitude is provided between the end cap 2 of fishplate bar 8 and first；In order to avoid the dynamic pressure of drive member described in vibration processes
Shock is produced between the end cap 2 of plate 7 and first, anticollision gap 13 is provided between the end cap 2 of dynamic pressure plate 7 and first.
Referring to Fig. 1~3, described backpressure device is located in guide sleeve 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 deflecting element by three precompressed steel wire ropes 9, three
10, one blocks of floating back-pressure steel plates 11 of ring screw, another three lifting bolts 10 of fixed 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 the end cap 3 of disk spring group 4 and second；
The lifting bolt 10 that described three are only used as steel wire rope deflecting element is fixed around the axisymmetrical of described guide sleeve 1
Lower surface on the dynamic pressure plate 7 of the drive member in the centre bore of disk spring group 4.
Referring to Fig. 6~10, each steel wire rope self-locking is tensioned anchorage 15 by the first self-centering locking fixture, the second self-centering lock
Clamper, anti-torsion compression spring 15-1 and plane bearing 15-2 compositions, wherein：
The first described self-centering locking fixture has a connecting seat 15-3, and connecting seat 15-3 edge is provided with mounting hole
15-12, the middle part of lower end are provided with axially extending cylindrical boss 15-4, and first is provided with along axial line inside boss 15-4
Taper hole 15-5, the taper hole is interior to be provided with the first taper clamping jaw 15-7 being made up of 3 claw pieces, and the outer peripheral face of the boss 15-4 is arranged
There is tensioning swivel nut 15-6, be threadedly coupled therebetween；Wherein, the microcephaly of the first tapered clamp 15-7 points to connecting seat 15-3,
The outer peripheral face of the tensioning swivel nut 15-6 is regular hexagon；
The second described self-centering locking fixture has a tapered sleeve 15-8, is sequentially provided with inside tapered sleeve 15-8 along axis
One section of second taper hole 15-13 and one section of screwed hole；Wherein, the second taper being made up of 3 claw pieces is provided with the second taper hole 15-13
Clamping jaw 15-9, described screwed hole is interior to be provided with hollow bolt 15-10, hollow bolt 15-10 head and the second taper clamping jaw 15-
9 major part is relative, and the outer peripheral face of the tapered sleeve 15-8 is regular hexagon；
Described plane bearing 15-2 is by ball-retainer component 15-11 and is respectively provided at tensioning swivel nut 15-6 and tapered sleeve
Ring raceway on end face relative 15-8 is formed, wherein in described ring raceway and ball-retainer component 15-11
Ball matches；
The second self-centering locking fixture is positioned at the outside on tensioning swivel nut 15-6 heads, and the second taper clamping jaw 15-9
Microcephaly is consistent with the sensing of the first taper clamping jaw 15-7 microcephalies；Described plane bearing 15-2 be located at the tensioning swivel nut 15-6 with
Between tapered sleeve 15-8, described anti-torsion compression spring 15-1 is located in tensioning swivel nut 15-6 endoporus.When precompressed steel wire rope 9 is by
Centre bore and the second taper through anti-torsion compression spring 15-1 and plane bearing 15-2 between one taper clamping jaw 15-7 calvus
After being passed between clamping jaw 15-9 calvus, under the tension force effect of precompressed steel wire rope 9, an anti-work for turning round compression spring 15-1
With on the first taper clamping jaw 15-7, other end is acted on tapered sleeve 15-8.
Referring to Fig. 1 and Fig. 5, the connecting seat 15-3 of the 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 the bottom surface of the second end cap of lower surface distance 3 at the middle part of second end cap 3 protuberance
More than the height of steel wire rope self-locking tensioning anchorage 15.
Referring to Fig. 1~5, the axisymmetrical on the floating back-pressure steel plate 11 around guide sleeve 1 is provided with three lifting bolts 10；
The outside of second end cap 3, steel wire rope self-locking tensioning anchorage 15 is provided with the position that the axis of guide sleeve 1 passes through；Three
Root precompressed steel wire rope 9 is distributed in the centre bore of disk spring group 4 with broken line state, and one of each precompressed steel wire rope 9 is
Connect and be fixed on floating back-pressure steel plate 11 on set lifting bolt 10, other end passed around relative one and is used as steel wire rope deflecting
Turned back after the lifting bolt 10 of element, then three precompressed steel wire ropes 9 are listed as rope beam from guide sleeve 1 on floating back-pressure steel plate 11
Axis pass through position pass through floating back-pressure steel plate 11, by steel wire rope self-locking be tensioned anchorage 15 be anchored on the second end cap 3；Institute
On the floating back-pressure steel plate 11 stated, the through hole 12 of precompressed steel wire rope 9 is provided through through position in the rope beam, the through hole 12
Aperture is more than the diameter of the rope beam；On the second described end cap 3, the anchoring of anchoring rope beam is provided with through position in the rope beam
Hole 3-1.
Referring to Fig. 1~5 and Fig. 6~10 are combined, 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 according to the default initial stiffness of damper and the characteristic of disk spring group 4
Parameter, calculate the tension force that precompressed steel wire rope 9 meets damper initial stiffness；(2) damper is assembled by Fig. 1, made
First taper clamping jaw 15- of the rope beam that the other end of three precompressed steel wire ropes 9 forms side by side from steel wire rope self-locking tensioning anchorage 15
7th, passed in the second taper clamping jaw 15-9 and hollow bolt 15-10 centre bore；Then, (3) are the precompressed steel wire rope 9 exposed
Fag end system is connected on traction stretching machine, and monitors the tension force of precompressed steel wire rope 9 using tension detecting instrument while tensioning is drawn；
When the precompressed steel wire rope 9 is tensioned to tension force needed for default initial stiffness, the second self-centering locking fixture is moved forward, simultaneously
Regulation turns tensioning swivel nut 15-6 so that plane bearing 15-2 be clamped tightly at the tensioning swivel nut 15-6 and tapered sleeve 15-8 it
Between, and anti-torsion compression spring 15-1 is compressed, its caused tension force promotes the first taper clamping jaw 15-7 reaches by pre- steel wire
Rope 9 clamps, and turning described hollow bolt 15-10 thereafter will press from both sides extremely positioned at precompressed steel wire rope 9 in the second taper clamping jaw 15-9；Most
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 of installation damper or in routine maintenance procedure, if it find that in advance
The tension force deficiency of compressed steel cord 9, you can the tensioning swivel nut 15-6 turned in steel wire rope self-locking tensioning anchorage 15 is adjusted.
Referring to Fig. 1~3, because damper described in this example is vertical earthquake isolating equipment, therefore when being tensioned precompressed steel wire rope 9 then
The tension force sum of three precompressed steel wire ropes 9 is undertaken dead load more than or equal to the damper, can so ensure the 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 by earthquake isolating equipment to building during building transmission
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 caused dynamic loading overcomes the initial stiffness of damper, if axis of the dynamic loading along guide sleeve 1 above pushes away the second end
Lid 3, the reaction force of dynamic pressure plate 7 just compress downwards disk spring group 4, and the second end cap 3 moves up with ground and building is motionless；Such as
Axis of the fruit dynamic loading along guide sleeve 1 pulls down the second end cap 3, and precompressed steel wire rope 9 is then by being used as steel wire rope deflecting element
Lifting bolt 10 reversely slings floating back-pressure steel plate 11, compresses disk spring group 4 upwards, the second end cap 3 moves down with ground, but builds
It is still motionless to build thing.As can be seen here, when P wave makes ground that up-down vibration occur, compressible disk spring group produces bullet
Property deformation and consume energy.
Example 2
Referring to Figure 11~14, the damper described in this example is also a kind of vertical earthquake isolating equipment for Antiseismic building, and
Some following improvement has been substantially carried out on the basis of example 1：(1) precompressed steel wire rope 9 is increased into the six roots of sensation by three；(2) using as
The lifting bolt 10 of steel wire rope deflecting element replaces with U-shaped component 16；(3) 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 deflecting element U-shaped component 16,
The lifting bolt 10 and a fixed precompressed steel wire rope 9 of fixed 9 one, the precompressed steel wire rope of one block of floating back-pressure steel plate 11, six are another
The steel wire rope self-locking tensioning anchorage 15 of one forms；Wherein,
Floating back-pressure steel plate 11 is located between the end cap 3 of disk spring group 4 and second；
The six U-shaped components 16 for being only used as steel wire rope deflecting element fix the drive around the axisymmetrical of described guide sleeve 1
Lower surface on the dynamic pressure plate 7 of dynamic component in the centre bore of disk spring group 4；Referring to Figure 14, described U-shaped component 16
It is made up of round steel bending, on the dynamic pressure plate 7 of the drive member, is provided with and U-shaped component setting the relevant position of U-shaped component 16
The circular hole that 16 two sides match, the U-shaped component 16 are inserted in the circular hole, and the two is welded and fixed together；
Axisymmetrical on the floating back-pressure steel plate 11 around guide sleeve 1 is provided with six lifting bolts 10；Second end
The outside of lid 3, steel wire rope self-locking tensioning anchorage 15 is provided with the position that the axis of guide sleeve 1 passes through；The pre- steel wire of the six roots of sensation
Rope 9 is distributed in the centre bore of disk spring group 4 with broken line state, and one of each precompressed steel wire rope 9 be connect be fixed on it is floating
On dynamic back-pressure steel plate 11 on set lifting bolt 10, other end passed around a relative U-shaped as steel wire rope deflecting element
Turned back after component 16, then six roots of sensation precompressed steel wire rope 9 is listed as rope beam from the axis process of guide sleeve 1 on floating back-pressure steel plate 11
Position pass through floating back-pressure steel plate 11, by steel wire rope self-locking tensioning anchorage 15 be anchored on the second end cap 3；Described floating is anti-
On laminated steel 11, the through hole 12 of precompressed steel wire rope 9 is provided through through position in the rope beam, the aperture of the through hole 12 is more than institute
State the diameter of rope beam；On the second described end cap 3, the anchor hole 3-1 of anchoring rope beam is provided with through position in the rope beam.
This example other implementations other than the above are same as Example 1.
The operation principle of earthquake isolating equipment described in this example for Antiseismic building 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 damper reinforced for building structure aseismatic, and the damper includes being oriented to
Set 1, two of the guide sleeve 1 are 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 guide sleeve 1 by the center of the first end cap 2 of guide sleeve one and is pressed in the disk spring group 4；Wherein
Described drive member is formed by dynamic pressure plate 7 and with the drive rod 17 that it is connected, and the end of the drive rod 17 is provided with hinge
Connect hole 18.
Referring to Figure 15, axisymmetrical of the outside of second end cap 3 along guide sleeve 1 is provided with and that it is connected is two parallel
Otic placode 19, the end of the otic placode 19 also is provided with hinge hole 18.
Be provided with backpressure device referring to Figure 15~19, in described guide sleeve 1, the backpressure device by three precompressed steel wire ropes 9,
Three are only used as fixed 9 one, the precompressed steel wire rope of 20, one blocks of fixed pulley floating back-pressure steel plate 11, three of steel wire rope deflecting element
Lifting bolt 10 and the steel wire rope self-locking tensioning anchorage 15 of a fixed other end of precompressed steel wire rope 9 form.Wherein,
Floating back-pressure steel plate 11 is located between the end cap 3 of disk spring group 4 and second；
Three fixed pulleys 20 for being only used as steel wire rope deflecting element fix the driving around the axisymmetrical of described guide sleeve 1
Lower surface on the dynamic pressure plate 7 of component in the centre bore of disk spring group 4；Wherein, described fixed pulley 20 is hinged on
On support, the support is welded on the dynamic pressure plate 7 of drive member；
Axisymmetrical on the floating back-pressure steel plate 11 around guide sleeve 1 is provided with three lifting bolts 10；Second end
The outside of lid 3, steel wire rope self-locking tensioning anchorage 15 is provided with the position that the axis of guide sleeve 1 passes through；Three pre- steel wires
Rope 9 is distributed in the centre bore of disk spring group 4 with broken line state, and one of each precompressed steel wire rope 9 be connect be fixed on it is floating
On dynamic back-pressure steel plate 11 on set lifting bolt 10, other end passed around relative one and determines cunning as steel wire rope deflecting element
Turned back after wheel 20, then three precompressed steel wire ropes 9 are listed as restricting what beam passed through from the axis of guide sleeve 1 on floating back-pressure steel plate 11
Position passes through floating back-pressure steel plate 11, is anchored in by steel wire rope self-locking tensioning anchorage 15 on the second end cap 3；Described floating back-pressure
On steel plate 11, the through hole 12 of precompressed steel wire rope 9 is provided through through position in the rope beam, the aperture of the through hole 12 is more than described
The diameter of rope beam；On the second described end cap 3, the anchor hole 3-1 of anchoring rope beam is provided with through position in the rope beam.
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 implement.
Referring to Figure 15, the operation principle that the damper that building structure aseismatic is reinforced is used for described in this example is as follows：When more than setting
It is relative when acting on drive rod 17 and otic placode 19 to count axis of the dynamic loading along guide sleeve 1 of dead load, described dynamic pressure plate 7 to
Lower to compress disk spring group 4, hinge hole 18 relatively moves on drive rod 17 and otic placode 19；When the dynamic loading more than design dead load
When acting on opposite to each other on drive rod 17 and otic placode 19 along the axis of guide sleeve 1, precompressed steel wire rope 9 is reversely sling by fixed pulley 20
Floating back-pressure steel plate 11 compresses disk spring group 4, and hinge hole 18 moves backward (now, dish-shaped bullet on drive rod 17 and otic placode 19
Spring group 4 still also in pressured state).As can be seen here, no matter relative axial dynamic loading is or acts on initial stiffness opposite to each other
On adjustable back pressure type disk spring damper, disk spring group 4 can be compressed, elastic deformation is brought it about and consumes energy.
Claims (4)
1. a kind of adjustable back pressure type disk spring damper of initial stiffness, the damper includes guide sleeve, the one of the guide sleeve
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 guide sleeve and acted in described disk spring group, wherein the disk spring group is erected by one group of disk spring
To being formed by stacking；Characterized in that,
Backpressure device is additionally provided with described guide sleeve, the backpressure device includes the precompressed steel wire rope of more than three and pre- compressed steel
The equal steel wire rope deflecting 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 deflecting element is fixed on around the axisymmetrical of described guide sleeve in described drive member, and is located at
In the centre bore of the disk spring group；
Described steel wire rope self-locking tensioning anchorage is compressed by the first self-centering locking fixture, the second self-centering locking fixture, anti-turn round
Spring and plane bearing composition, wherein：
A the first self-centering locking fixture described in) has a connecting seat, and the middle part of the connecting seat one end is provided with axially extending cylinder
Shape boss, is provided with the first taper clamping jaw being made up of 3~5 claw pieces inside the boss along axial line, and outer peripheral face is arranged with
Tight swivel nut；Wherein, the microcephaly of first tapered clamp points to connecting seat, and the outer peripheral face of the tensioning swivel nut is regular hexagon；
B the second self-centering locking fixture described in) has a tapered sleeve, is sequentially provided with inside the tapered sleeve along axis by 3~5 claws
The the second taper clamping jaw and hollow bolt of piece composition, wherein, the head of described hollow bolt and the major part of the second taper clamping jaw
Relatively, the outer peripheral face of the tapered sleeve is regular hexagon；
C the plane bearing described in) by ball-retainer component and is respectively provided on the tensioning swivel nut end face relative with tapered sleeve
Ring raceway is formed, wherein described ring raceway matches with the ball in ball-retainer component；
D) the second self-centering locking fixture is positioned at the outside on the tensioning swivel nut head, and the second taper clamping jaw microcephaly and the
The sensing of one taper clamping jaw microcephaly is consistent；Described plane bearing is between the tensioning swivel nut and tapered sleeve, described anti-torsion
Compression spring is located in the endoporus of tensioning swivel nut；When precompressed steel wire rope through anti-turn round between the calvus of the first taper clamping jaw by compressing bullet
After being passed between the calvus of the centre bore and the second taper clamping jaw of spring and plane bearing, under the effect of precompressed steel wire rope tension,
Anti- turn round compression spring one is acted on the first taper clamping jaw, and other end is acted on tapered sleeve；
Described precompressed steel wire rope is distributed in the centre bore of disk spring group with broken line state, and each precompressed steel wire rope
One axisymmetrical around described guide sleeve is fixed on floating back-pressure steel plate, and other end passed around a relative steel wire rope
Turned back after deflecting element, then all precompressed steel wire ropes are listed as restricting what beam passed through from guide sleeve axis on floating back-pressure steel plate
Point is anchored on the second end cap through floating back-pressure steel plate by steel wire rope self-locking tensioning anchorage；On described floating back-pressure steel plate,
The through hole of the rope beam is provided through in the position that the rope beam passes through, the aperture of the through hole is more than the diameter of the rope beam；
By tension force needed for precompressed steel wire tensioning to setting initial stiffness, described disk spring group is set to be clamped in driving structure all the time
Between part and floating back-pressure steel plate.
2. the adjustable back pressure type disk spring damper of a kind of initial stiffness according to claim 1, it is characterised in that should
Back pressure type disk spring damper is the damper reinforced for building structure aseismatic.
3. the adjustable back pressure type disk spring damper of a kind of initial stiffness according to claim 1, it is characterised in that should
Back pressure type disk spring damper is the vertical earthquake isolating equipment for Antiseismic building.
4. the adjustable back pressure type disk spring damper of a kind of initial stiffness according to claim 1,2 or 3, its feature exist
In described steel wire rope deflecting element is fixed pulley, lifting bolt or U-shaped component.
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| CN107117427B (en) * | 2017-06-16 | 2023-03-10 | 滨州学院 | Buffer device for reeling track |
| 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 |
| 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 |
| 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 |
| CN113789879B (en) * | 2021-09-07 | 2022-09-16 | 湖南省潇振工程科技有限公司 | Pulley type tuned mass eddy current damper |
| 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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| US6739568B2 (en) * | 2002-10-25 | 2004-05-25 | 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 |
| CN1932324A (en) * | 2006-10-09 | 2007-03-21 | 毛学军 | Adjustable disc-shape spring mechanical vibration reducing damper |
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| CN202039470U (en) * | 2011-04-24 | 2011-11-16 | 广州大学 | Three-dimensional shock isolating and absorbing device |
| CN203096936U (en) * | 2013-03-20 | 2013-07-31 | 广东宇泰减震科技有限公司 | Tensile vibration-isolation support provided with steel wire ropes |
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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 |
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