CN106051014A - Multi-dimensional adjustable quasi-zero stiffness vibration isolation platform - Google Patents
Multi-dimensional adjustable quasi-zero stiffness vibration isolation platform Download PDFInfo
- Publication number
- CN106051014A CN106051014A CN201610545258.9A CN201610545258A CN106051014A CN 106051014 A CN106051014 A CN 106051014A CN 201610545258 A CN201610545258 A CN 201610545258A CN 106051014 A CN106051014 A CN 106051014A
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- China
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- platform
- chute
- silent flatform
- adjusting means
- gripper shoe
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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
-
- 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
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/04—Frequency effects
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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
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/06—Stiffness
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a multi-dimensional adjustable quasi-zero stiffness vibration isolation platform. The multi-dimensional adjustable quasi-zero stiffness vibration isolation platform comprises a movable platform, a base, absorbers and adjusting devices. The absorbers are connected with the movable platform. The adjusting devices are connected with the base and the absorbers and used for adjusting the initial positions of the absorbers. The base comprises a fixed platform opposite to the movable platform and a supporting device arranged on the fixed platform and connected with the adjusting devices. According to the multi-dimensional adjustable quasi-zero stiffness vibration isolation platform, stiffness can be easy and convenient to adjust, and the multi-dimensional adjustable quasi-zero stiffness vibration isolation platform is suitable for broadband domain vibration isolation and has good engineering applicability; the multi-dimensional adjustable quasi-zero stiffness vibration isolation platform has high bearing stiffness, also has very low motion stiffness and is low in static deformation and dynamic inherent frequency and good in vibration isolation effect; and through flexible stiffness and damping adjustment, the inherent contradiction restraining a traditional vibration isolation system can be avoided, and the inherent contradiction is the contradiction between the low-frequency vibration transmission rate and the high-frequency vibration attenuation rate.
Description
Technical field
The invention belongs to absorber technical field, specifically, the present invention relates to a kind of multidimensional and can harmonize zero stiffness vibration isolation
Platform.
Background technology
High precision machine tool and precision instrument and equipment, high-grade research laboratory's equipment, missile transporter vehicle etc., vibration isolation is put down
Platform proposes higher performance requirement, at Structural Engineering and mechanical engineering field, the most all to seek a kind of performance the most prominent
Vibration-isolating platform.
Summary of the invention
The present invention provides one to have both higher static rigidity and relatively low dynamic rate, and can realize the adjustable wide frequency domain of rigidity
The quasi-zero stiffness vibration-isolating platform of vibration isolation.
To achieve these goals, the technical scheme that the present invention takes is: multidimensional can be harmonized zero stiffness vibration-isolating platform, bag
Include:
Moving platform；
Vibroshock, it is connected with moving platform；
Adjusting means, it is connected with vibroshock, and is used for regulating the initial position of vibroshock；And
Base, it includes with moving platform is the silent flatform being oppositely arranged and is arranged on silent flatform and is connected with adjusting means
Support means.
Described vibroshock one end is rotationally connected with described moving platform, and the other end is rotationally connected with described adjusting means.
Described support means is for be movably arranged on described silent flatform, and described adjusting means is for be movably arranged at
In support means, and when moving direction when support means moves on silent flatform moves in support means with adjusting means
Moving direction is perpendicular.
Described adjusting means is multiple in the circumferentially about distribution of described moving platform, and each adjusting means is respectively by described
Vibroshock is connected with moving platform, and in two adjacent adjusting meanss, between one of them adjusting means and described silent flatform
Distance more than distance between another adjusting means and silent flatform.
Described vibroshock and described adjusting means centered by the axis of described moving platform line around moving platform in uniformly
Distribution.
Described support means includes the gripper shoe being arranged on described silent flatform and being connected with described adjusting means and with quiet
Platform is the sliding part being slidably connected and being connected with gripper shoe.
Described gripper shoe line centered by the axis of described silent flatform is uniformly distributed circumferentially multiple on silent flatform.
Described sliding part is to embed the bolt in chute set on described silent flatform, and described gripper shoe has allows bolt wear
The hole crossed, bolt is provided with the nut for fastening described gripper shoe.
Described adjusting means includes the tune being rotationally connected with described vibroshock and being connected with described gripper shoe by securing member
Joint seat, gripper shoe has the chute allowing securing member pass, and the length direction of chute is paralleled with the moving direction of adjustment seat.
Described gripper shoe has the first chute and the second chute being located along the same line, and the second chute is positioned at the first chute
And between described silent flatform.
The multidimensional of the present invention can be harmonized zero stiffness vibration-isolating platform, has the advantage that
1, this vibration-isolating platform not only solves conventional linear vibrating isolation system isolation low frequency or difficult problem during superlow frequency vibrating, keeps away
Exempt from the shortcoming used actively and semi-active control vibration isolator structure is complicated, manufacturing cost highly energy-consuming is high；
2, this vibration-isolating platform is in certain deformation range, using the three of upper end shock-absorbing springs as positive stiffness elements and lower end
Three be only used as negative stiffness shock-absorbing spring element in parallel, can realize this vibration-isolating platform near its equilbrium position non-linear just
Degree；
3, this vibration-isolating platform can realize wide frequency domain vibration isolation by the initial position of adjusting means regulation vibroshock, can
It is widely used in the precision instrument strict to vibration isolation requirement and equipment, there is good engineering practicability.
4, while this vibration-isolating platform has higher support stiffness, also there is the lowest motion rigidity, static deformation amount
Little, that dynamic natural frequency is low vibration isolating effect.
Accompanying drawing explanation
This specification includes the following drawings, shown content respectively:
Fig. 1 is the structural representation of vibration-isolating platform of the present invention；
Fig. 2 is the structural representation of moving platform；
Fig. 3 is the installation diagram of moving platform and vibroshock；
Fig. 4 is the structural representation of base；
Fig. 5 is the structural representation of silent flatform；
Figure is labeled as:
1, vibroshock；11, pin-and-hole；12, shock-absorbing spring；2, base；21, silent flatform；22, gripper shoe；23, the first chute；
24, the second chute；25, the 3rd chute；26, sliding part；27, the first nut；3, adjusting means；31, adjustment seat；32, bolt；
33, the second nut；4, moving platform；41, loading plate；42, mounting seat；43, the 4th chute；44, bolt；45, the 3rd nut.
Detailed description of the invention
Below against accompanying drawing, by the description to embodiment, the detailed description of the invention of the present invention is made further details of
Explanation, it is therefore an objective to help those skilled in the art that design, the technical scheme of the present invention are had more complete, accurate and deep reason
Solve, and contribute to its enforcement.
As shown in Figures 1 to 5, the invention provides a kind of multidimensional and can harmonize zero stiffness vibration-isolating platform, including moving platform 4,
Base 1, vibroshock and adjusting means 3, vibroshock is to be connected with moving platform 4, and adjusting means 3 is to be connected with base 1 and vibroshock,
And for regulating the initial position of vibroshock.Base 1 includes with moving platform 4 to be the silent flatform 21 being oppositely arranged and is arranged at quiet flat
The support means being connected on platform 21 and with adjusting means 3.The multidimensional of the present invention can be harmonized zero stiffness vibration-isolating platform, arranges certain
Structural parameters, this vibration-isolating platform may be implemented in equilbrium position have quasi-zero stiffness and have near equilbrium position non-linear just
Degree, can solve difficult problem when conventional linear vibrating isolation system isolation low frequency or superlow frequency vibrating；Rigidity can easy regulate, it is adaptable to wide
Frequency domain vibration isolation, has good engineering adaptability；While there is higher support stiffness, also there is the lowest motion rigidity,
Static deformation amount is little, and dynamic natural frequency is low, and vibration isolating effect is good；By rigidity, the flexible of damping, it is possible to resolve restriction tradition
The contradiction of the intrinsic contradictions of vibrating isolation system, i.e. low-frequency vibration transport and dither attenuation rate.The multidimensional that the present invention proposes can
Adjustment zero stiffness vibration-isolating platform is a kind of novel damping vibration-isolating platform, has good economy and practicality, can be generalized to
Every field.
Specifically, as it is shown in figure 1, one end of vibroshock is rotationally connected with moving platform 4, the other end and adjusting means 3 turns
Being dynamically connected, vibroshock two ends are rotationally connected that axis a little is parallel and axis perpendicular with moving platform 4.The centrage of vibroshock
Being rotationally connected axis perpendicular a little with vibroshock two ends, adjusting means 3 is for regulating the centrage of vibroshock and horizontal plane
Between initial angle, i.e. change the initial position of vibroshock, thus change the initial pre-of the shock-absorbing spring that has on vibroshock
Clamp force.
As shown in Figure 1, Figure 4 and Figure 5, the silent flatform 21 of base 1 and moving platform 4 are for being oppositely arranged, and support means is for moving
Dynamic is arranged on silent flatform 21, and support means position on silent flatform 21 can regulate, and adjusting means 3 is for movably to set
It is placed in support means, the adjusting means 3 position-adjustable in support means, and when support means moves on silent flatform 21
Moving direction moving direction when moving in support means with adjusting means 3 perpendicular.Silent flatform 21 is disc-shaped component,
Support means line centered by the axis of silent flatform 21 is the most multiple on silent flatform 21.Support means includes being arranged at
The gripper shoe 22 that is connected on silent flatform 21 and with adjusting means 3 and with silent flatform 21 for being slidably connected and being connected with gripper shoe 22
Sliding part 26, gripper shoe 22 is to be vertically arranged on the end face of silent flatform 21, the length direction of gripper shoe 22 and silent flatform 21
Axis is parallel, is provided with the 3rd chute 25 radially extended accordingly on the end face of silent flatform 21, and the end of sliding part 26 is embedding
Enter in the 3rd chute 25 and realize and being slidably connected of silent flatform 21.
As shown in Figure 4 and Figure 5, the 3rd chute 25 is to be arranged on silent flatform 21 and cross section is T-shaped T-shaped chute, the 3rd
The length direction of chute 25 and the axis perpendicular of silent flatform 21.Sliding part 26 is preferably bolt, and the axis of sliding part 26 is with quiet
The axis of platform 21 is parallel, and the hexagonal head of sliding part 26 embeds in the 3rd chute 25, and threaded shank is from the 3rd chute 25
After stretching out and through through hole set in gripper shoe 22, sliding part 26 is provided with the first nut 27 for fastening support plate 22.
The opening allowing sliding part 26 stretch out, sliding part is formed on 3rd chute 25 surface contacted with gripper shoe 22 on silent flatform 21
The hexagonal head size of 26 is more than the size of this opening, thus the hexagonal head of sliding part 26 is embedded in the 3rd chute all the time
In 25, sliding part 26 is only capable of moving radially relative to silent flatform 21, so that support means can be along footpath on silent flatform 21
To movement, carrying out position adjustments, by tightening the first nut 27, the securing member that the first nut 27 and bolt are constituted is by gripper shoe 22
It is fixed on silent flatform 21.
As shown in Figure 4 and Figure 5, the end of gripper shoe 22 has an installing plate that is parallel with silent flatform 21 and that contact,
This installing plate is rectangular flat, and for the reliability after improving stability when support means moves and fixing, gripper shoe 22 is led to
Cross multiple securing member being made up of with sliding part 26 the first nut 27 to be connected with silent flatform 21, and securing member is at least provided with two.
On silent flatform 21, the position of each support means corresponding is respectively provided with two the 3rd parallel chutes 25 accordingly, and the 3rd is sliding
Groove 25 two-by-two one group and centered by the axis of silent flatform 21 line on silent flatform 21, be circumferentially uniformly arranged many groups, the two of each group
Individual 3rd chute 25 is the most at least installed a sliding part 26.
In the present embodiment, as shown in Figure 4 and Figure 5, each gripper shoe 22 is by the first nut 27 and slip by four
The securing member that part 26 is constituted is connected with silent flatform 21, four rectangular distributions of securing member, and in two the 3rd chutes 25 of each group
It is respectively mounted two sliding parts 26.
As it is shown in figure 1, adjusting means 3, vibroshock and gripper shoe 22 are many being circumferentially about uniformly distributed of moving platform 4
Individual, the quantity of adjusting means 3, vibroshock and gripper shoe 22 is equal, and each gripper shoe 22 is by an adjusting means 3 and vibration damping
Device connects.In two adjacent adjusting meanss 3, the distance between one of them adjusting means 3 and silent flatform 21 is more than another
Distance between individual adjusting means 3 and silent flatform 21；In the circumferential in three adjusting meanss 3 of continuous print, it is positioned at the regulation of centre
Distance between device 3 and silent flatform 21 is less than the distance between the adjusting means 3 and silent flatform 21 of both sides.In Fig. 1 institute
When showing state, adjusting means 3, vibroshock and gripper shoe 22 centered by the axis of moving platform 4 line around moving platform 4 in uniformly
Distribution.In the present embodiment, as it is shown in figure 1, adjusting means 3, vibroshock and gripper shoe 22 arrange six respectively.
As shown in figures 1 and 3, one end of vibroshock is rotationally connected with moving platform 4 by bearing pin, the other end by bearing pin and
Adjusting means 3 is rotationally connected.As in figure 2 it is shown, moving platform 4 includes loading plate 41 and is arranged on loading plate 41 and turns with vibroshock
The mounting seat 42 being dynamically connected, mounting seat 42 is connected with loading plate 41 by securing member, and loading plate 41 has allows securing member pass
4th chute 43, the length direction of the 4th chute 43 is paralleled with the axis of moving platform 4.The mounting seat 42 position on loading plate 41
Putting scalable, mounting seat 42 is for be movably arranged on loading plate 41, and shifting when mounting seat 42 moves on loading plate 41
Parallel with the axis of moving platform 4 in dynamic direction.Mounting seat 42 centered by the axis of moving platform 4 line on loading plate 41 circumferentially
Being uniformly distributed multiple, each mounting seat 42 is rotationally connected with a vibroshock respectively.
As in figure 2 it is shown, the 4th chute 43 is to be arranged on loading plate 41 and cross section is T-shaped T-shaped chute, the 4th chute 43
Length direction parallel with the axis of moving platform 4.It is by bolt 44 for connecting the securing member of mounting seat 42 and loading plate 41
Constituting with the 3rd nut 45, the axis of bolt 44 and the axis perpendicular of moving platform 4, the hexagonal head of bolt 44 embeds the 4th
In chute 43, after bolt 44 threaded shank is stretched out from the 4th chute 43 and through through hole set in mounting seat 42, on bolt 44
It is provided with the 3rd nut 45 for fastening mounting seat 42.4th chute 43 surface contacted with mounting seat 42 on loading plate 41
Upper formation allows the opening that bolt 44 stretches out, and the hexagonal head size of bolt 44 is more than the size of this opening, thus bolt 44
Hexagonal head is embedded in the 4th chute 43 all the time, and bolt 44 is only capable of the length side along the 4th chute 43 relative to loading plate 41
To movement, so that mounting seat 42 can be entered along the direction paralleled with the axis of moving platform 4 until moving on loading plate 41
Line position regulates, and by tightening the 3rd nut 45, mounting seat 42 is fixed on by the securing member that the 3rd nut 45 is constituted with bolt 44
On loading plate 41.
As in figure 2 it is shown, the end of mounting seat 42 has an installing plate contacted with the surface of loading plate 41, this installation
Plate is rectangular flat, and for the reliability after improving stability when mounting seat 42 moves and fixing, mounting seat 42 is by multiple
The securing member being made up of the 3rd nut 45 and bolt 44 is connected with loading plate 41, and securing member is at least provided with two.Holding accordingly
The position installing each mounting seat 42 on support plate 41 is respectively provided with two the 4th parallel chutes 43, and the 4th chute 43 is two-by-two
One group and centered by the axis of moving platform 4 line on loading plate 41, be circumferentially uniformly arranged many groups, two the 4th cunnings of each group
Groove 43 is the most at least installed a bolt 44.
In the present embodiment, as in figure 2 it is shown, each mounting seat 42 is to be made up of the 3rd nut 45 and bolt 44 by two
Securing member be connected with loading plate 41, two securing members be in on the same straight line of the axis perpendicular of moving platform 4, and each group
Two the 4th chutes 43 in be respectively mounted a bolt 44.
In the present embodiment, owing to vibroshock is provided with six, corresponding mounting seat 42 is also provided with six, as in figure 2 it is shown,
Loading plate 41 is regular hexagon component, and the centrage of loading plate 41 is the axis of moving platform 4, on six sides of loading plate 41
Being provided with two the 4th chutes 43, six mounting seats 42 are connected and around loading plate 41 with loading plate 41 by securing member
It is uniformly distributed in circumference.
As shown in Figure 1 and Figure 4, adjusting means 3 includes being rotationally connected with vibroshock and being connected with gripper shoe 22 by securing member
The adjustment seat 31 connect, gripper shoe 22 has the chute allowing securing member pass, the length direction of chute and the mobile side of adjustment seat 31
To parallel.Be respectively provided with an adjustment seat 31 in each gripper shoe 22, adjustment seat 31 for be movably arranged in gripper shoe 22,
The adjustment seat 31 position-adjustable in gripper shoe 22, and moving direction when adjustment seat 31 moves in gripper shoe 22 is flat with quiet
The axis of platform 21 is parallel.Owing to two adjacent adjustment seats 31 are to carry out according to a remote near mode relative to silent flatform 21
Arranging, therefore each gripper shoe 22 is respectively provided with the first chute 23 and the second chute 24 being located along the same line, the second chute 24
Between the first chute 23 and silent flatform 21, the distance between the first chute 23 and silent flatform 21 is more than the second chute 24 with quiet
Distance between platform 21, the adjustment seat 31 remote for distance silent flatform 21 is in the first chute 23 position by securing member
Place is connected with gripper shoe 22, for the distance near adjustment seat 31 of silent flatform 21 be securing member at the second chute 24 position and
Gripper shoe 22 connects.
As shown in Figure 1 and Figure 4, the first chute 23 and the second chute 24 are the length of the length direction extension along gripper shoe 22
Groove, the first chute 23 and the second chute 24 also run through setting for the thickness direction along gripper shoe 22, be used for connecting adjustment seat 31 with
The securing member of gripper shoe 22 is to be made up of with the second nut 33 bolt 32, and the axis of bolt 32 hangs down mutually with the axis of silent flatform 21
Directly, and paralleling with the axis of bolt 44, the size of the hexagonal head of bolt 32 is more than the first chute 23 and the second chute 24
Width.For the adjustment seat 31 being connected with gripper shoe 22 at the first chute 23 by securing member, the hexagonal head of bolt 32
Portion is positioned at the outside of the first chute 23, and adjustment seat 31 is positioned at the inner side of the first chute 23, and it is sliding that the threaded shank of bolt 32 embeds first
After stretching out in groove 23 and from the first chute 23 and through through hole set in adjustment seat 31, sheathed for fastening tune on bolt 32
Second nut 33 of joint seat 31, bolt 32 can move along the length direction of the first chute 23 relative to gripper shoe 22, so that adjusting
Joint seat 31 can carry out position adjustments along the direction paralleled with the axis of silent flatform 21 until moving in gripper shoe 22, logical
Crossing and tighten the second nut 33, adjustment seat 31 is fixed in gripper shoe 22 by the securing member that the second nut 33 and bolt 32 are constituted.Right
In the adjustment seat 31 being connected with gripper shoe 22 at the second chute 24 by securing member, the hexagonal head of bolt 32 is positioned at second
The outside of chute 24, adjustment seat 31 is positioned at the inner side of the second chute 24, the threaded shank of bolt 32 embed in the second chute 24 and from
After second chute 24 stretches out and through the through hole set by adjustment seat 31, sheathed for the of fastening adjustment seat 31 on bolt 32
Two nuts 33, bolt 32 can move along the length direction of the second chute 24 relative to gripper shoe 22, so that adjustment seat 31 is being propped up
Position adjustments can be carried out, by tightening second along the direction paralleled with the axis of silent flatform 21 until moving on fagging 22
Nut 33, adjustment seat 31 is fixed in gripper shoe 22 by the securing member that the second nut 33 and bolt 32 are constituted.Each gripper shoe 22
Structure identical, be provided with the first chute 23 and the second chute 24 the most simultaneously, versatility is good, but each adjusting means 3 is only capable of
Be arranged on for gripper shoe 22 on the first chute 23 at or the second chute 24 at.Three adjusting meanss of continuous print in the circumferential
In 3, the adjustment seat 31 of the adjusting means 3 being positioned at centre is passed through at the securing member the second chute 24 in gripper shoe 22 and gripper shoe
22 connect, and are positioned at the adjustment seat 31 of two adjusting meanss 3 of both sides by the securing member the first chute 23 in gripper shoe 22
It is connected with gripper shoe 22.
As shown in Figure 4, the end of adjustment seat 31 has an installing plate contacted with the surface of gripper shoe 22, this installation
Plate is rectangular flat, and for the reliability after improving stability when adjustment seat 31 moves and fixing, adjustment seat 31 is by multiple
The securing member being made up of the second nut 33 and bolt 32 is connected with gripper shoe 22, and securing member is at least provided with two.Propping up accordingly
At least provided with two the first parallel chutes 23 and two the second parallel chutes 24, each first chute on fagging 22
23 and second the most at least install a bolt 32 in chute 24.
In the present embodiment, as shown in Figure 4, each adjustment seat 31 is to be made up of the second nut 33 and bolt 32 by two
Securing member be connected with gripper shoe 22, two securing members are in on the same straight line of the axis perpendicular of silent flatform 21, support
Two the first parallel chutes 23 and two the second parallel chutes 24, and the first chute 23 and second it is provided with on plate 22
Chute 24 is respectively mounted a bolt 32.
The major advantage of the connected mode between the adjusting means 3 of said structure, base 1, moving platform 4 and each parts embodies
: 1) facilitate the regulation of whole vibration-isolating platform, dismounting, regulation that the size of this platform vibration isolation object, weight range can be made to expand,
Dismounting can make platform be moved easily flexibly, it is simple to transport；2) the structure design of whole platform, can produce series product easily
Product, it is simple to this console module, producing in serial form.
The following detailed description of how realizing the quasi-zero stiffness of vibration-isolating platform, concretely comprise the following steps:
Step 1: first calculate moving platform 4 and reached the deformation quantity of shock-absorbing spring during equipoise by extraneous exciting force.
Step 2: the deformation quantity of shock-absorbing spring when reaching equipoise according to put object thus regulation be arranged at
The pre compressed magnitude of the vibroshock that the adjusting means 3 at the first chute 23 of fagging 22 connects makes the pretightning force of this vibroshock along vibration damping
Device points to lower spring end lid.When moving platform 4 moves downward, the shock-absorbing spring on this vibroshock will produce positive rigidity.
Step 3: regulate the vibration damping of the vibroshock being connected with the adjusting means 3 at the second chute 24 being arranged at gripper shoe 22
The deformation quantity of spring, thus the pretightning force that the pre compressed magnitude regulating this vibroshock makes vibroshock points to lower end along vibroshock.When dynamic
When platform 4 moves downward, the shock-absorbing spring on this vibroshock will produce negative stiffness.
Positive rigidity that the vibroshock that is connected with the adjusting means 3 at the first chute 23 being arranged at gripper shoe 22 produces and with
The negative stiffness being arranged at the vibroshock generation that the adjusting means 3 at the second chute 24 of gripper shoe 22 connects just numerically is added
The global stiffness that can realize whole vibration insulating system is zero, thus realizes quasi-zero stiffness vibration-isolating platform.
Above in association with accompanying drawing, the present invention is exemplarily described.Obviously, the present invention implements not by above-mentioned side
The restriction of formula.As long as the improvement of the various unsubstantialities that the method design that have employed the present invention is carried out with technical scheme；Or not
Improved, above-mentioned design and the technical scheme of the present invention are directly applied to other occasion, all in protection scope of the present invention
Within.
Claims (10)
1. multidimensional can be harmonized zero stiffness vibration-isolating platform, it is characterised in that including:
Moving platform；
Vibroshock, it is connected with moving platform；
Adjusting means, it is connected with vibroshock, and is used for regulating the initial position of vibroshock；And
Base, it include with moving platform be the silent flatform being oppositely arranged and be arranged on silent flatform and be connected with adjusting means
Support arrangement.
Multidimensional the most according to claim 1 can be harmonized zero stiffness vibration-isolating platform, it is characterised in that described vibroshock one end with
Described moving platform is rotationally connected, and the other end is rotationally connected with described adjusting means.
Multidimensional the most according to claim 1 can be harmonized zero stiffness vibration-isolating platform, it is characterised in that described support means is can
Being arranged on described silent flatform of movement, described adjusting means is for be movably arranged in support means, and support means exists
Moving direction when moving direction when moving on silent flatform moves in support means with adjusting means is perpendicular.
Multidimensional the most according to claim 1 can be harmonized zero stiffness vibration-isolating platform, it is characterised in that described adjusting means is in institute
The circumferentially about distribution stating moving platform is multiple, and each adjusting means is connected with moving platform by described vibroshock respectively, and
In two adjacent adjusting meanss, the distance between one of them adjusting means and described silent flatform is more than another adjusting means
And the distance between silent flatform.
Multidimensional the most according to claim 4 can be harmonized zero stiffness vibration-isolating platform, it is characterised in that described vibroshock and described
Adjusting means line centered by the axis of described moving platform is evenly distributed around moving platform.
6. can harmonize zero stiffness vibration-isolating platform according to the multidimensional described in claim 1 to 5, it is characterised in that described support means
Including the gripper shoe being arranged on described silent flatform and be connected with described adjusting means and with silent flatform for be slidably connected and with
The sliding part that fagging connects.
Multidimensional the most according to claim 6 can be harmonized zero stiffness vibration-isolating platform, it is characterised in that described gripper shoe is with described
Centered by the axis of silent flatform, line is uniformly distributed circumferentially multiple on silent flatform.
Multidimensional the most according to claim 6 can be harmonized zero stiffness vibration-isolating platform, it is characterised in that described sliding part is for embedding
The bolt in chute set on described silent flatform, described gripper shoe has the hole allowing bolt pass, and bolt is provided with for tightly
Gu the nut of described gripper shoe.
Multidimensional the most according to claim 6 can be harmonized zero stiffness vibration-isolating platform, it is characterised in that described adjusting means includes
The adjustment seat being rotationally connected with described vibroshock and be connected with described gripper shoe by securing member, gripper shoe has allows securing member wear
The chute crossed, the length direction of chute is paralleled with the moving direction of adjustment seat.
Multidimensional the most according to claim 9 can be harmonized zero stiffness vibration-isolating platform, it is characterised in that described gripper shoe has
The first chute being located along the same line and the second chute, the second chute is between the first chute and described silent flatform.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610545258.9A CN106051014B (en) | 2016-07-12 | 2016-07-12 | Multidimensional can harmonize zero stiffness vibration-isolating platform |
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|---|---|---|---|
| CN201610545258.9A CN106051014B (en) | 2016-07-12 | 2016-07-12 | Multidimensional can harmonize zero stiffness vibration-isolating platform |
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| CN106051014A true CN106051014A (en) | 2016-10-26 |
| CN106051014B CN106051014B (en) | 2018-08-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870615A (en) * | 2017-04-21 | 2017-06-20 | 吉林大学 | A kind of dish type non-linear low frequency vibration isolator based on positive and negative Stiffness principle |
| CN108799405A (en) * | 2018-06-28 | 2018-11-13 | 天津航天机电设备研究所 | A kind of zero stiffness isolation mounting of irrotational displacement |
| CN112377563A (en) * | 2020-11-12 | 2021-02-19 | 中国船舶重工集团公司第七0七研究所 | Vibration isolation device with high attitude precision |
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