CN106436954A - Disc spring damper with presettable initial stiffness - Google Patents
Disc spring damper with presettable initial stiffness Download PDFInfo
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- CN106436954A CN106436954A CN201610905964.XA CN201610905964A CN106436954A CN 106436954 A CN106436954 A CN 106436954A CN 201610905964 A CN201610905964 A CN 201610905964A CN 106436954 A CN106436954 A CN 106436954A
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- steel wire
- wire rope
- disk spring
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- antivibrator
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- Vibration Prevention Devices (AREA)
Abstract
The invention relates to a disc spring damper with presettable initial stiffness, characterized in that a counter pressure device is disposed in a guide sleeve and comprises more than three prestressed wire ropes, wire rope reversing elements as many as the prestressed wire ropes, and a floating counter pressure steel plate, wherein the prestressed wire ropes are distributed in a center hole of a disc spring set in a broken line form, one end of each prestressed wire rope is fixed symmetrically around the axis of the guide sleeve to the floating counter pressure steel plate, and the other end of each prestressed wire rope is passed through the opposite wire rope reversing element and returned and is then passed through the floating counter pressure steel plate beside a fixation point thereof on the floating counter pressure steel plate and fixed to a second end cover; the prestressed wire ropes are tensioned to tension required by preset initial stiffness, such that the disc spring set is clamped constantly between a drive member and the floating counter pressure steel plate.
Description
Technical field
The present invention relates to a kind of building vibration proof (or vibrations) device, and in particular to the damping unit comprising disk spring.
Background technology
Antivibrator is the device of depletion kinergety in the way of the resistance for 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, the nonlinear characteristic of the strong and wider range of buffering vibration absorption ability and extensive
Be applied to all kinds of heavy duty shock insulations of occasions, in damping device.Disk spring is generally combined into the use of disk spring group by multi-disc, no
Same compound mode using effect difference；But the disk spring group no matter which kind of mode constitutes all can only compression.Therefore,
It is currently used for wind resistance and earthquake-resistant antivibrator and will at least uses two groups of disk springs, or with other types of antivibrator (such as
Viscoelastic damper) compound.But, this method meeting being combined using multigroup disk spring or with other types of antivibrator
Much negative problem is produced, such as：1st, 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, production is difficult, high cost；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
, 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 that encourages staggers, and two is that the characteristic frequency of antivibrator will be staggered with the characteristic frequency of building or building structure.According to
《Butterfly spring fundamental characteristics Parameter analysis》The theory analysis of 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, 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 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 for 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 ", the antivibrator includes shell, the load connecting rod for being located inside the shell and two groups of disk springs, described, the load connection
The middle part of bar is provided with the regulation gear being connected therewith, is respectively equipped with load even in the load connecting rod of the regulation gear both sides
Left-handed nut and right-handed nut that extension bar screw thread coordinates, two groups of disk springs are respectively provided at the left-handed nut and dextrorotation spiral shell
Female outside, and be clamped between the left-handed nut or right-handed nut and the shrouding of outer casing end respectively.Switch is only needed to carry
Regulation gear in lotus connecting rod, makes the 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 so as to the damped coefficient of damping adjusting device, to meet the use demand of different frequency and various amplitude.But should
Invention still has following not enough：
1st, the 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 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 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 the invention, could be all provided when antivibrator presses or draws load
Damping, this not only causes certain waste, also so that the length of antivibrator greatly increased, is not suitable for some installing spaces
Compact occasion is used.
The application for a patent for invention of Publication No. CN101457553A discloses one kind, and " spring stiffness adjustable tuning quality subtracts
Shake device ", the vibroshock is a kind of composite buffer, 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 for changing spring, its
The means of the middle effective active length for changing spring have three kinds, and one is a section for being located at spring using curing materials in solidification cylinder
Solidification, two fill in constraint block, and the two interference fit toward intracardiac in helical spring, make the one section of spring for contacting with constraint block
Failure, three is to arrange helical raised on constraint block surface, and helical raised is stuck between spring wire, makes to block between spring wire
There is one section of spring failure of helical raised.As can be seen here, although the spring in the patent application scheme can change rigidity, institute
Not only effectively active length substantially shortens the spring that states, 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 disk spring antivibrator of predeterminable initial stiffness, the resistance
Buddhist nun's device not only maintains effective active length of disk spring group, and both compressible passive energy dissipations, and stretchable passive energy dissipation.
The present invention solves the technical scheme of above-mentioned technical problem：
A kind of disk spring antivibrator of predeterminable initial stiffness, the antivibrator includes fairlead, one of the fairlead
The first end cap is provided with, other end is provided with the second end cap, inside is coaxially provided with disk spring group；One drive member is by the first end cap
The heart puts in fairlead and acts in described disk spring group, and wherein the disk spring group is overlapped by one group of disk spring
Form；Characterized in that,
Backpressure device is additionally provided with described fairlead, the backpressure device includes the precompressed steel wire rope of more than three and pre-
The equal steel wire rope break-in element of compressed steel cord quantity and one block of floating back-pressure steel plate, wherein,
Described floating back-pressure steel plate is located between 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；
Described precompressed steel wire rope is distributed in the center in the hole of disk spring group, and each pre- steel wire with broken line state
One axisymmetrical around described fairlead of rope is fixed on floating back-pressure steel plate, and other end passed around a relative steel
Turning back after cord break-in element, then floating back-pressure steel is passed through by the fixing point from the precompressed steel wire rope on floating back-pressure steel plate
Plate is fixed on second end cap；
On described floating back-pressure steel plate, it is equipped with through precompressed steel wire rope each precompressed steel wire penetrating position
Through hole, the aperture of the through hole is more than the diameter of the precompressed steel wire rope；
By tension force needed for precompressed steel wire tensioning to default initial stiffness, described 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 along fairlead axis relative act on when, described driving
Component compresses downwards disk spring group；When dynamic loading is acted 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, axial dynamic loading no matter relative or phase
The back of the body is acted on antivibrator, can compress dish-shaped groups of springs so as to elastic deformation occurs and consumes energy.
From above-mentioned operation principle, logical on the precompressed steel wire rope described in work process and 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, and therefore the through-hole diameter compares institute
The diameter for stating precompressed steel wire rope is how many greatly, not disturb and moving up and down for floating back-pressure steel plate should be affected to be advisable.
In such scheme, described steel wire rope break-in element is the suspension ring shape structure of common fixed pulley or similar break-in function
Part, such as lifting bolt, U-shaped component etc..
The disk spring antivibrator of predeterminable initial stiffness of the present invention, wherein described precompressed steel wire rope two can
Using being welded and fixed, similar lifting bolt system may also be employed fixation is connect, but, if two all adopts welding or lifting bolt system
Connect fixing dead, then the purpose of default initial stiffness will be reached, be necessary for precalculating and strictly control the precompressed steel wire rope
Length could pre-set tension, and then reach the purpose of default initial stiffness.But, in actual production debugging process, adopt
Then there are following two hang-ups in the purpose for reaching default initial stiffness with the method for controlling the precompressed rope capacity, one is weldering
Connect or be that the process for connecing can produce error, even if two are to control welding or are error produced by the process for connecing, but steel wire rope exists
The change of its characterisitic parameter is also resulted in cut-out, placement process.In order to solve above-mentioned technical barrier, an improvement of the present invention
Scheme is：
The other end of described precompressed steel wire rope is fixed on the second end cap by steel wire rope self-locking anchorage；Described steel wire rope
Self-locking anchorage is made up of installing hole, jaw and check bolt, wherein,
Described installing hole is located on the second end cap；Described installing hole is made up of one section of taper hole and one section of screwed hole, its
Described in taper hole be located at the side by fairlead, and tip is pointed in the fairlead, and the screwed hole is located remotely from fairlead
Opposite side；
Described jaw is to match cone with the taper hole, and is made up of 3～5 lobes, and which is provided with folder along axis in vivo
Hold the clamping hole of precompressed steel wire rope；
Described check bolt is matched with the screwed hole, and is provided with diameter greater than pre- compressed steel accordingly along axis in vivo
The circular hole of cord diameter；
Described jaw is in the taper hole, and check bolt is arranged on the screw thread in the hole.
From above-mentioned improvement project, one of each precompressed steel wire rope is fixed in floating counter, other end
By passing in the clamping hole of described steel wire rope self-locking anchorage and circular hole, so the fag end system that exposes can be connected on traction tensioning
On machine, while tensioning is drawn, tension force is monitored using tension detecting instrument.When the precompressed steel wire tensioning is initial firm to presetting
Needed for degree during tension force, the jaw is promoted to clamp and locked precompressed steel wire rope by turning check bolt, even if pre- steel wire
Rope will not be also loosened in the vibration processes of relaxation repeatedly.
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, the seismic hardening of building structure, antidetonation of heavy construction etc..
The disk spring antivibrator of the predeterminable initial stiffness of the present invention is had the effect that compared with prior art：
(1) apply external force along axis, no matter the external force is pressure or pulling force, and described disk spring group can all produce bullet
Property compression and consume energy, overcome classical dish-like shapes spring-damper can only compression power consumption shortcoming；
(2) after dynamic loading presets the defensive ability/resistance ability of initial stiffness more than antivibrator, 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, be building knot
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 antivibrator, external force is overcoming this initial
Before rigidity antivibrator cannot be deformed, therefore used building vertical earthquake isolating when, predeterminable earthquake intensity, significantly
Reduce shock insulation cost；
(4) only two kinds of working conditions of stretching and compression be can achieve with one group of disk spring, significantly shorten antivibrator
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) initial stiffness being preset using the characteristic reasonable selection of butterfly spring, and then selects the characteristic frequency domain of antivibrator
Scope, avoids the intrinsic frequency domain of building structure and the vertically frequency domain of seismic wave, prevents resonance.
Description of the drawings
Fig. 1～5 are the structural representation of a specific embodiment of disk spring antivibrator of the present invention, wherein, Fig. 1
For front view (Fig. 3 C C rotation is cutd open), Fig. 2 is the A A sectional view (omitting precompressed steel wire rope) of Fig. 1, and Fig. 3 is cutd open for the B B of Fig. 1
View (omits precompressed steel wire rope), and Fig. 4 is the schematic enlarged-scale view of Fig. 1 local I, and Fig. 5 is the schematic enlarged-scale view of Fig. 1 local II.
Fig. 6～11 are the structural representation of second specific embodiment of disk spring antivibrator of the present invention, wherein,
Fig. 6 is front view (section view), and Fig. 7 is the E E sectional view of Fig. 6 for the D D sectional view (omitting precompressed steel wire rope) of Fig. 6, Fig. 8
(omitting precompressed steel wire rope), Fig. 9 is the F F cutaway view Amplified image of Fig. 7, and Figure 10 is the schematic enlarged-scale view of Fig. 6 local III, Tu11Wei
The G G cutaway view Amplified image of Figure 10.
Figure 12～16 are the structural representation of the 3rd specific embodiment of disk spring antivibrator of the present invention, its
In, Figure 12 is front view (the J J rotation of Figure 14 is cutd open), and Figure 13 is the H H sectional view (omitting precompressed steel wire rope) of Figure 12, Figure 14
I I sectional view (omitting precompressed steel wire rope) for Figure 12, Figure 15 is the schematic enlarged-scale view of Figure 12 local IV, and Figure 16 is Figure 12 office
The schematic enlarged-scale view in portion V.
Specific embodiment
Example 1
Referring to Fig. 1～5, the antivibrator described in this example is that a kind of vertical earthquake isolating equipment for Antiseismic building (is also referred to as erected
To shock isolating pedestal), it includes fairlead 1, the first end cap 2, the second end cap 3, 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 the center of being formed and has pilot hole
The first end cap 2, lower end extends radially outwards to form a ring flange 5.The second described end cap 3 is discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding discoid, the edge of surrounding
Installing hole 6 is provided with, described fairlead 1 is fixed thereon the middle part on surface by the ring flange 5 set by lower end.
Referring to Fig. 1～3, described drive member is made up of dynamic pressure plate 7 and upper junction plate 8, 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 the boss is by the first end cap 2
Set pilot hole is put in fairlead 1, and is fixed together with dynamic pressure plate 7 by screw.
Referring to Fig. 1～3, described disk spring group 4 is located in fairlead 1, and the dynamic pressure plate 7 in drive member acts on which
Upper surface, wherein the disk spring group 4 are vertically formed by stacking two-by-two relatively by 16 disk springs.
Referring to Fig. 1, the gap 14 that is provided between upper junction plate 8 and the first end cap 2 more than amplitude；In order to avoid vibration processes
Described in produce shock between the dynamic pressure plate 7 of drive member and the first end cap 2, be provided between the dynamic pressure plate 7 and the first end cap 2
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 for steel wire rope break-in element by three precompressed steel wire ropes 9, three
Another six lifting bolts 10 of 10, one block of floating back-pressure steel plate 11 of ring screw and fixing precompressed steel wire rope 9 constitute.Wherein,
Described floating back-pressure steel plate 11 is located between disk spring group 4 and the second end cap 3；
Described three are only used as the lifting bolt 10 of steel wire rope break-in element and fix around the axisymmetrical of described fairlead 1
On the dynamic pressure plate 7 of the drive member；
Axisymmetrical on the floating back-pressure steel plate 11 around fairlead 1 is provided with three lifting bolts 10, second end
Another three lifting bolts are correspondingly provided with by the relative position of set three lifting bolts 10 on floating back-pressure steel plate 11 on lid 3
10；Three precompressed steel wire ropes 9 are all located at the center in the hole of disk spring group 4 with broken line state, and, each precompressed steel wire rope 9
One be to connect to be fixed on floating back-pressure steel plate 11 on a set lifting bolt 10, other end bypasses relative as steel
Turn back after the lifting bolt 10 of cord break-in element, then the precompressed steel wire rope 9 is from its fixation on floating back-pressure steel plate 11
On other corresponding second end cap 3 of point, the position of set lifting bolt 10 passes through floating back-pressure steel plate 11, is to connect to be fixed on the second end cap 3
On upper set lifting bolt 10；On described floating back-pressure steel plate 11, it is equipped with through position in each precompressed steel wire rope 9 and wears
The through hole 12 of precompressed steel wire rope 9 is crossed, the aperture of the through hole 12 is more than the diameter of the precompressed steel wire rope 9.
Referring to Fig. 1～3, in order to realize the purpose of predeterminable initial stiffness, the installation of above-mentioned three precompressed steel wire ropes 9 and
Clamping method is as described below：(1) first dish-shaped bullet is determined according to the coefficient of elasticity of the default initial stiffness of antivibrator and disk spring group 4
4 decrement of spring group, and then calculate the length that each precompressed steel wire rope 9 meets antivibrator initial stiffness requirement；(2) Fig. 1 is pressed
After the dynamic pressure plate 7 of disk spring group 4, the backpressure device and drive member is connected by～3, dish-shaped groups of springs 4, dew is first compressed
Three through holes 12 on three lifting bolts 10 and the second end cap 3 for going out to float on back-pressure steel plate 11, then adjust repeatedly, make each
The physical length of root precompressed steel wire rope 9 is equal with computational length, is then on the lifting bolt 10 being connected on the second end cap 3, and
Fixing dead with common rope cramp (in figure there is not display), disk spring group 4 is clamped in the dynamic pressure of the drive member all the time
Between plate 7 and floating back-pressure steel plate 11；(3) part for assembling step (2) is put in fairlead 1, and is directed to cover 1 and
Two end caps 3 are fixed together, and finally upper junction plate 8 are fixed together with dynamic pressure plate 7, obtain final product described predeterminable initial stiffness
Disk spring antivibrator.
Referring to Fig. 1～3, as 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 that the undertaken dead load of the antivibrator is equal to, can so ensure the antivibrator
Bidirectional elastic deformation symmetrical.
Under ideal conditions, the vertical ripple of earthquake should be unable to occur 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 the 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；Such as
Really the dynamic loading is along drop-down second end cap 3 of axis of fairlead 1, and precompressed steel wire rope 9 is then by as steel wire rope break-in element
Lifting bolt 10 is reversely sling floating back-pressure steel plate 11, compresses dish-shaped groups of springs 4 upwards, and the second end cap 3 is moved down with ground, but is built
Build thing still motionless.As can be seen here, when P wave makes ground that up-down vibration to occur, all compressible disk spring groups produce bullet
Property deformation and consume energy.
Example 2
Referring to Fig. 6～11, the antivibrator described in this example is also a kind of vertical earthquake isolating equipment for Antiseismic building, and
Some improvement following has been substantially carried out on the basis of example 1：(1) precompressed steel wire rope 9 is increased to the six roots of sensation by three；(2) will be used as steel
The lifting bolt 10 of cord break-in element replaces with U-shaped component 15；(3) by the lifting bolt of fixing 9 other end of precompressed steel wire rope
10 replace with steel wire rope self-locking anchorage 16；(4) middle part of the second end cap 3 is thickened and protuberance forms inverted washbowl shape upwards,
In order to install steel wire rope self-locking anchorage 16；(5) described backpressure device is changed accordingly to：
Described backpressure device is only used as the U-shaped component 15, of steel wire rope break-in element by six roots of sensation precompressed steel wire rope 9, six
The lifting bolt 10 of 9 one, the fixing precompressed steel wire rope of block floating back-pressure steel plate 11, six and six fixing precompressed steel wire ropes 9 are another
The steel wire rope self-locking anchorage 16 of head constitutes；Wherein,
Floating back-pressure steel plate 11 is located between disk spring group 4 and the second end cap 3；
The six U-shaped components 15 for being only used as steel wire rope break-in element fix the drive around the axisymmetrical of described fairlead 1
On the dynamic pressure plate 7 of dynamic component；Referring to Fig. 9, described U-shaped component 15 is made up of round steel bending, the dynamic pressure plate 7 of the drive member
On, it is provided with the circular hole for matching with 15 two sides of U-shaped component, the U-shaped component 15 in the relevant position for arranging U-shaped component 15
It is inserted in the circular hole, the two is welded and fixed together；
Axisymmetrical on the floating back-pressure steel plate 11 around fairlead 1 is provided with six lifting bolts 10, second end
Six steel wire ropes are correspondingly provided with from break adrift by the relative position of set six lifting bolts 10 on the floating back-pressure steel plate 11 on lid 3
Tool 16；Six roots of sensation precompressed steel wire rope 9 is all distributed in the center in the hole of disk spring group 4 with broken line state, and, each pre- steel wire
Rope one of 9 is fixed on floating back-pressure steel plate 11 by lifting bolt 10, and other end passed around relative as steel wire rope break-in
Turn back after the U-shaped component 15 of element, then the precompressed steel wire rope 9 is from which corresponding the by fixing point on floating back-pressure steel plate 11
On two end caps 3, the position of set steel wire rope self-locking anchorage 16 passes through floating back-pressure steel plate 11, is fixed by steel wire rope self-locking anchorage 16
On the second end cap 3；On described floating back-pressure steel plate 11, it is equipped with through pre- through position in each precompressed steel wire rope 9
The through hole 12 of compressed steel cord 9, the aperture of the through hole 12 is more than the diameter of the precompressed steel wire rope 9.
Referring to Figure 10 and Figure 11, in above-mentioned backpressure device, described steel wire rope self-locking anchorage 16 is by installing hole 16-1, jaw
16-2 and check bolt 16-3 is constituted, and wherein, described installing hole 16-1 is located on the second end cap 3；Described installing hole 16-1
It is made up of one section of taper hole and one section of screwed hole, wherein the taper hole is located at the side in fairlead 1, and tip points to the guiding
In set 1, the screwed hole is located at the side outside fairlead 1；Described jaw 16-2 is the cone for matching with the taper hole,
And be made up of 3 lobes, which is provided with the clamping hole of clamping precompressed steel wire rope 9 in vivo along axis；Described check bolt 16-3 with described
Screwed hole matches, and is provided with the circular hole with diameter greater than 9 diameter of precompressed steel wire rope along axis in vivo；Described jaw 16-2 is installed
In the taper hole, check bolt 16-3 is arranged on the screw thread in the hole.
By Fig. 6～11, the antivibrator is assembled, make the self-corresponding jaw 16-2 in other end of corresponding precompressed steel wire rope 9
Pass in the circular hole of internal clamping hole and check bolt 16-3.Then the fag end system of the precompressed steel wire rope 9 for exposing is connected on and leads
Draw on stretching machine, and the tension force of precompressed steel wire rope 9 is monitored while tensioning is drawn using tension detecting instrument.When the pre- compressed steel
When cord 9 is tensioned to tension force needed for default initial stiffness, the jaw 16-2 is promoted by turning check bolt 16-3 by precompressed
Steel wire rope 9 is clamped and locked, so as to disk spring group 4 is clamped between floating back-pressure steel plate 11 and dynamic pressure plate 7 all the time.
This example other implementations other than the above are same as Example 1.
The operation principle of the 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 12～14, this example is a kind of antivibrator for building structure aseismatic reinforcing, and the antivibrator includes to be oriented to
Set 1, two of the fairlead 1 is respectively fixed with the first end cap 2 and the second end cap 3, and inside is provided with disk spring group 4, and one drives
Component is put in described fairlead 1 by 2 center of the first end cap of fairlead one and is pressed in the disk spring group 4；Wherein
The first drive rod 17 that described drive member is connected by dynamic pressure plate 7 and with which is constituted, the end of first drive rod 17
End is provided with hinge hole 18.
Referring to Figure 12, second end cap, 3 outside is provided with the second drive rod 19 being connected with which, second drive rod
19 end also is provided with hinge hole 18.
Referring to Figure 12～16, in described fairlead 1, is provided with backpressure device, the backpressure device by three precompressed steel wire ropes 9,
Three 9 one, the fixing precompressed steel wire ropes of 20, one block of fixed pulley floating back-pressure steel plate 11, three for being only used as steel wire rope break-in element
The steel wire rope self-locking anchorage 16 of lifting bolt 10 and three fixing 9 other ends of precompressed steel wire rope constitutes.Wherein,
Floating back-pressure steel plate 11 is located between disk spring group 4 and the second end cap 3；
Three fixed pulleys 20 for being only used as steel wire rope break-in element fix the driving around the axisymmetrical of described fairlead 1
On the dynamic pressure plate 7 of component positioned at 4 center in the hole of the disk spring group lower surface；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 fairlead 1 is provided with three lifting bolts 10, second end
Three steel wire ropes are correspondingly provided with from break adrift by the relative position of set three lifting bolts 10 on the floating back-pressure steel plate 11 on lid 3
Tool 16；Three precompressed steel wire ropes 9 are all distributed in the center in the hole of disk spring group 4 with broken line state, and, each pre- steel wire
Rope one of 9 is fixed on floating back-pressure steel plate 11 by lifting bolt 10, and other end passed around relative as steel wire rope break-in
Turn back after the fixed pulley 20 of element, then the precompressed steel wire rope 9 is from which corresponding the by fixing point on floating back-pressure steel plate 11
On two end caps 3, the position of set steel wire rope self-locking anchorage 16 passes through floating back-pressure steel plate 11, is fixed by steel wire rope self-locking anchorage 16
On the second end cap 3；On described floating back-pressure steel plate 11, it is equipped with through pre- through position in each precompressed steel wire rope 9
The through hole 12 of compressed steel cord 9, the aperture of the through hole 12 is more than the diameter of the precompressed steel wire rope 9.
Steel wire rope self-locking anchorage 16 in such scheme is identical with example 2, the antivibrator assemble method also with 2 class of example
Seemingly, the public can refer to example 2 and implement.
Referring to Figure 12, the operation principle of the antivibrator that reinforces for building structure aseismatic described in this example is as follows：Set when being more than
The dynamic loading of meter dead load along fairlead 1 axis relative act on the first drive rod 17 and the second drive rod 19 when, described
Dynamic pressure plate 7 compress downwards disk spring group 4,18 relative movement of hinge hole on the first drive rod 17 and the second drive rod 19；When
Acted on the first drive rod 17 and the second drive rod 19 opposite to each other along the axis of fairlead 1 more than the dynamic loading of design dead load
When, precompressed steel wire rope 9 compresses dish-shaped groups of springs 4, the first drive rod 17 by the floating back-pressure steel plate 11 of reversely slinging of fixed pulley 20
With hinge hole 18 on the second drive rod 19 move backward (now, disk spring group 4 still also in pressured state).Thus may be used
See, no matter relative axial dynamic loading is or acts on antivibrator opposite to each other, can compress dish-shaped groups of springs 4 so as to which elasticity occurs
Deform and consume energy.
Claims (5)
1. a kind of disk spring antivibrator of predeterminable initial stiffness, the antivibrator includes fairlead, and of the fairlead sets
There is the first end cap, other end is provided with the second end cap, inside is coaxially provided with disk spring group；One drive member is by the first end cap central
Put in fairlead and act in described disk spring group, wherein the disk spring group overlapped by one group of disk spring and
Become；Characterized in that,
Backpressure device is additionally provided with described fairlead, the backpressure device includes the precompressed steel wire rope of more than three and pre- compressed steel
The equal steel wire rope break-in element of cord quantity and one block of floating back-pressure steel plate, wherein,
Described floating back-pressure steel plate is located between 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；
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 the fixing point from the precompressed steel wire rope on floating back-pressure steel plate is other solid through floating back-pressure steel plate
It is scheduled on second end cap；
On described floating back-pressure steel plate, it is equipped with through the logical of precompressed steel wire rope each precompressed steel wire penetrating position
Hole, the aperture of the through hole is more than the diameter of the precompressed steel wire rope；
By tension force needed for precompressed steel wire tensioning to default initial stiffness, described disk spring group is made to be clamped in driving structure all the time
Between part and floating back-pressure steel plate.
2. the disk spring antivibrator of a kind of predeterminable initial stiffness according to claim 1, it is characterised in that this can be pre-
If the disk spring antivibrator of initial stiffness is the antivibrator that reinforces for building structure aseismatic.
3. the disk spring antivibrator of a kind of predeterminable initial stiffness according to claim 1, it is characterised in that this can be pre-
If the disk spring antivibrator of initial stiffness is the vertical earthquake isolating equipment for Antiseismic building.
4. the disk spring antivibrator of a kind of predeterminable initial stiffness according to claim 1,2 or 3, it is characterised in that
The other end of described precompressed steel wire rope is fixed on the second end cap by steel wire rope self-locking anchorage；Described steel wire rope self-locking anchorage
It is made up of installing hole, jaw and check bolt, wherein,
Described installing hole is located on the second end cap；Described installing hole is made up of one section of taper hole and one section of screwed hole, wherein institute
State taper hole and the side by fairlead is located at, and tip is pointed in the fairlead, the screwed hole is located remotely from the another of fairlead
Side；
Described jaw is to match cone with the taper hole, and is made up of 3～5 lobes, and it is pre- which is provided with clamping along axis in vivo
The clamping hole of compressed steel cord；
Described check bolt is matched with the screwed hole, and is provided with diameter greater than corresponding precompressed steel wire rope along axis in vivo
The circular hole of diameter；
Described jaw is in the taper hole, and check bolt is arranged on the screw thread in the hole.
5. the disk spring antivibrator of a kind of predeterminable initial stiffness according to claim 4, it is characterised in that described
Steel wire rope break-in element is fixed pulley, lifting bolt or U-shaped component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610905964.XA CN106436954A (en) | 2016-10-17 | 2016-10-17 | Disc spring damper with presettable initial stiffness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610905964.XA CN106436954A (en) | 2016-10-17 | 2016-10-17 | Disc spring damper with presettable initial stiffness |
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| Publication Number | Publication Date |
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| CN106436954A true CN106436954A (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610905964.XA Pending CN106436954A (en) | 2016-10-17 | 2016-10-17 | Disc spring damper with presettable initial stiffness |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108938152A (en) * | 2018-08-09 | 2018-12-07 | 深圳市龙岗区人民医院 | A kind of bionical intervertebral disk prosthesis |
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| JP2000336971A (en) * | 1999-06-01 | 2000-12-05 | Nippon Steel Corp | Vibration energy absorber for tension structure and method for constructing the same |
| CN2716587Y (en) * | 2004-07-09 | 2005-08-10 | 北京工业大学 | Disk spring and elastic daub buffer |
| CN201136517Y (en) * | 2007-12-18 | 2008-10-22 | 中国北车集团四方车辆研究所 | Bidirectional buffer for pulling-pressing conversion of elastic body |
| CN103343593A (en) * | 2013-07-25 | 2013-10-09 | 长沙理工大学 | Prestressed tendon anchorage device capable of being freely regulated and controlled at high precision |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000336971A (en) * | 1999-06-01 | 2000-12-05 | Nippon Steel Corp | Vibration energy absorber for tension structure and method for constructing the same |
| CN2716587Y (en) * | 2004-07-09 | 2005-08-10 | 北京工业大学 | Disk spring and elastic daub buffer |
| CN201136517Y (en) * | 2007-12-18 | 2008-10-22 | 中国北车集团四方车辆研究所 | Bidirectional buffer for pulling-pressing conversion of elastic body |
| CN103343593A (en) * | 2013-07-25 | 2013-10-09 | 长沙理工大学 | Prestressed tendon anchorage device capable of being freely regulated and controlled at high precision |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108938152A (en) * | 2018-08-09 | 2018-12-07 | 深圳市龙岗区人民医院 | A kind of bionical intervertebral disk prosthesis |
| CN108938152B (en) * | 2018-08-09 | 2024-05-14 | 深圳市龙岗区人民医院 | Bionic intervertebral disc prosthesis |
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