CN113738818B - Two-dimensional vibration isolator capable of exciting and isolating any displacement in opposite surface - Google Patents
Two-dimensional vibration isolator capable of exciting and isolating any displacement in opposite surface Download PDFInfo
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- CN113738818B CN113738818B CN202111292002.9A CN202111292002A CN113738818B CN 113738818 B CN113738818 B CN 113738818B CN 202111292002 A CN202111292002 A CN 202111292002A CN 113738818 B CN113738818 B CN 113738818B
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
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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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
- F16M11/12—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
- F16M11/14—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction with ball-joint
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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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/2007—Undercarriages with or without wheels comprising means allowing pivoting adjustment
- F16M11/2035—Undercarriages with or without wheels comprising means allowing pivoting adjustment in more than one direction
- F16M11/2078—Undercarriages with or without wheels comprising means allowing pivoting adjustment in more than one direction with ball-joint
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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
- F16F2230/00—Purpose; Design features
- F16F2230/0011—Balancing, e.g. counterbalancing to produce static balance
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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
- F16F2238/00—Type of springs or dampers
- F16F2238/02—Springs
- F16F2238/024—Springs torsional
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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
- F16F2238/00—Type of springs or dampers
- F16F2238/02—Springs
- F16F2238/026—Springs wound- or coil-like
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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
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/04—Balancing means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a two-dimensional vibration isolator capable of exciting and isolating any displacement in the face and belongs to the technical field of two-dimensional vibration isolators. It includes the isolator bottom plate, installs the mounting platform who is used for the installation by the protective apparatus along the horizontal plane, still includes the connecting rod that three piece at least length equals mutual parallels and installs, installs the flexible telescopic rod on the bottom surface under the mounting platform along the vertical direction, rotates the pivot of installing on the isolator bottom plate, and fixed the hollow revolving stage of installing in the pivot, and the circular displacement dish subassembly of fixed installing on hollow revolving stage, the suit is in the pivot both ends respectively with the torsion spring that isolator bottom plate and hollow revolving stage link to each other. The two-dimensional vibration isolator is simple and reasonable in structure, free of gravity and in-plane excitation coupling effect, and has the characteristics of high-flexibility vibration isolation of in-plane displacement and high-stability of static balance position.
Description
Technical Field
The invention mainly relates to the technical field of two-dimensional vibration isolators, in particular to a two-dimensional vibration isolator capable of exciting and isolating vibration for any displacement in the face.
Background
The vibration isolator has vibration isolation and energy absorption effects, so that equipment is better protected, and the vibration isolator is widely applied to engineering. The vibration isolator in the prior art is usually one-dimensional vibration isolation, that is, vibration isolation is performed in the vertical direction. However, as the complexity of the environment in which the device operates increases, it is sometimes desirable to isolate the excitation in the horizontal plane. Therefore, the vibration isolator which can carry out vibration isolation on displacement excitation in any direction in the face is designed, and has important application prospect.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: aiming at the technical problems in the prior art, the invention provides the two-dimensional vibration isolator which is simple and reasonable in structure, free of the coupling effect of gravity and in-plane excitation, and has the characteristics of high-flexibility vibration isolation of in-plane displacement and high-stability characteristics of static balance positions.
In order to solve the problems, the solution proposed by the invention is as follows: the utility model provides a can be opposite two-dimentional isolator of interior arbitrary displacement excitation vibration isolation, includes the isolator bottom plate, installs the mounting platform who is used for the installation by protective apparatus along the horizontal plane, still includes three piece at least length and equals the connecting rod of installing that is parallel to each other, along the vertical direction install in the flexible telescopic rod on the bottom surface under the mounting platform rotates and installs pivot on the isolator bottom plate is fixed to be installed epaxial hollow revolving stage is changeed epaxial, and is fixed to be installed circular displacement dish subassembly on the hollow revolving stage, the suit are in the pivot both ends respectively with the torsion spring that isolator bottom plate and hollow revolving stage link to each other.
The lower end of the elastic telescopic rod penetrates through the circular displacement disc assembly to extend into the hollow rotating table; when the connecting rod is in an inclined state, the elastic telescopic rod can freely roll on the inner bottom surface in the hollow rotating platform.
The circular displacement disc assembly can adapt to the elastic telescopic rod to generate displacement in any direction in the horizontal plane and simultaneously store certain reset elastic potential energy.
The upper end of the connecting rod is connected with the mounting platform through a ball hinge, and the lower end of the connecting rod is connected with the vibration isolator bottom plate through a ball hinge.
When the mounting platform is located at a static balance position in a horizontal plane, the elastic telescopic rod is collinear with the rotating shaft, and at least three connecting rods in a vertical state are axially symmetrical relative to the rotating shaft.
Furthermore, the circular displacement disc assembly comprises an in-plane displacement allowable disc fixedly arranged at the upper end of the hollow rotating table, eight equal-width radial sliding grooves axially and symmetrically arranged on the in-plane displacement allowable disc along the radius direction, eight radial springs corresponding to the eight equal-width radial sliding grooves and eight bidirectional locking sliding blocks; a radial spring and a bidirectional locking sliding block are arranged in the equal-width radial sliding chute; two ends of the radial spring are respectively connected with the corresponding equal-width radial sliding groove and the corresponding bidirectional locking sliding block; the bidirectional locking sliding block can simultaneously abut against the outer circumferential surface of a lifting sliding rod in the elastic telescopic rod and the inner walls of the two sides of the equal-width radial sliding grooves.
Furthermore, the bidirectional locking slider comprises a rectangular plate in sliding contact with the inner walls of the two sides of the equal-width radial sliding chute, an arc plate in sliding contact with the outer surface of the cylinder of the lifting sliding rod, and a trapezoidal plate arranged between the rectangular plate and the arc plate; the curvature radius of the arc-shaped plate is equal to that of the lifting sliding rod.
Furthermore, the elastic telescopic rod comprises a static sleeve fixedly arranged at the bottom of the mounting platform along the vertical direction, a gravity balance spring arranged in the static sleeve along the vertical direction, a lifting sliding rod with the upper end arranged in the static sleeve in a sliding manner, and a universal roller rotatably arranged at the lower end of the lifting sliding rod; and two ends of the gravity balance spring are respectively connected with the bottom of the mounting platform and the top of the lifting sliding rod.
Further, the hollow rotating platform is a cylindrical barrel body with an opening at the upper end.
Further, when the radial spring is in a zero deformation state, the bidirectional locking sliding block is freely abutted against the lifting sliding rod.
Further, the gravity balance spring is a pressure-resistant metal coil spring, and the rigidity of the gravity balance spring is selected so that the maximum compression deformation amount of the gravity balance spring in the working process does not exceed one twentieth of the free length.
Further, the lower end of the rotating shaft penetrates through a rolling bearing arranged on the vibration isolator bottom plate; and the rotating shaft is also provided with a bearing baffle plate which is contacted with the inner ring of the rolling bearing.
Compared with the prior art, the invention has the following advantages and beneficial effects: the two-dimensional vibration isolator capable of exciting and isolating the vibration at any displacement in the face is provided with at least three connecting rods which are arranged in parallel, so that the mounting platform always moves parallel to the horizontal plane under the action of any displacement excitation in the face; the elastic telescopic rod can generate reverse torque under the condition that the gravity balance spring is compressed and deformed, so that the reverse torque is balanced with the gravity torque with the expanded connecting rod rotation angle, the coupling effect of the gravity torque and in-plane excitation is eliminated, and the stability of the mounting platform at a static balance position is improved; the circular displacement disc component not only allows the lifting sliding rod to generate displacement in the radial direction, but also allows the lifting sliding rod to generate displacement in the circumferential direction, so that the flexibility of the mounting platform in any displacement direction in the plane is increased; the radial spring and the torsion spring can convert the displacement of the mounting platform in any direction into elastic potential energy, thereby realizing good vibration isolation of protected equipment. Therefore, the two-dimensional vibration isolator is simple and reasonable in structure, free of gravity and in-plane excitation coupling effect, and has the characteristics of high-flexibility vibration isolation of in-plane displacement and high-stability of static balance position.
Drawings
Fig. 1 is a schematic structural diagram of a two-dimensional vibration isolator capable of exciting and isolating vibration for any displacement in a face according to the invention.
Fig. 2 is a schematic diagram of the structural principle of the circular displacement disc assembly in the present invention.
Fig. 3 is a schematic diagram showing the distribution of the positions of at least three connecting rods on the bottom plate of the vibration isolator.
Fig. 4 is a schematic view of a deformed configuration of fig. 1 after in-plane displacement of the mounting platform.
Fig. 5 is a schematic structural view of the bidirectional locking slider in the present invention.
In the figure, 1 — isolator bottom plate; 2, mounting a platform; 20-protected equipment; 3, connecting rods; 4, an elastic telescopic rod; 41-stationary sleeve; 42-lifting slide bar; 43-gravity balance spring; 44-universal rollers; 5, a rotating shaft; 51-bearing shield; 52-rolling bearings; 6-a torsion spring; 7-hollow rotating platform; 8-in-plane displacement-allowing disc; 81-equal width radial sliding groove; 82-a radial spring; 83-bidirectional locking slide block; 831-rectangular plate; 832-trapezoidal plate; 833-arc shaped plate.
Detailed Description
The invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the two-dimensional vibration isolator capable of exciting and isolating vibration in any displacement in opposite directions comprises a vibration isolator bottom plate 1, a mounting platform 2 arranged along a horizontal plane and used for mounting protected equipment 20, at least three connecting rods 3 which are equal in length and arranged in parallel, an elastic telescopic rod 4 arranged on the lower bottom surface of the mounting platform 2 along a vertical direction, a rotating shaft 5 rotatably arranged on the vibration isolator bottom plate 1, a hollow rotating platform 7 fixedly arranged on the rotating shaft 5, a circular displacement disc assembly fixedly arranged on the hollow rotating platform 7, and torsion springs 6 sleeved at two ends of the rotating shaft 5 and respectively connected with the vibration isolator bottom plate 1 and the hollow rotating platform 7. When the hollow rotary table 7 and the circular displacement disc assembly are rotated with respect to the vibration isolator bottom plate 1, the torsion spring 6 is correspondingly torsionally deformed, thereby storing elastic potential energy to generate a spring torque for rotationally restoring the circular displacement disc assembly.
Referring to fig. 1 and 4, the lower end of the elastic telescopic rod 4 passes through the circular displacement disc assembly and extends into the hollow rotating table 7; when the connecting rod 3 is in an inclined state, the elastic telescopic rod 4 can freely roll on the inner bottom surface in the hollow rotating platform 7, and the elastic telescopic rod 4 generates certain elastic compression deformation, so that upward supporting force is given to the mounting platform 2, the total weight force of the protected equipment 20 and the mounting platform 2 is balanced, and the gravity moment and the excitation coupling effect in the horizontal plane are reduced.
The circular displacement disc assembly can adapt to the displacement of the elastic telescopic rod 4 in any direction in the horizontal plane and simultaneously store certain reset elastic potential energy.
The upper end of the connecting rod 3 is connected with the mounting platform 2 by a ball hinge, and the lower end of the connecting rod is connected with the vibration isolator bottom plate 1 by a ball hinge. At least three connecting rods 3 of equal length, which are arranged parallel to each other, allow the movement of the mounting platform 2 always parallel to the horizontal plane.
Referring to fig. 1 and 3, when the mounting platform 2 is in a static balance position in a horizontal plane, the elastic telescopic rod 4 is collinear with the rotating shaft 5, and at least three connecting rods 3 in a vertical state are axisymmetrical with respect to the rotating shaft 5.
Referring to fig. 2, preferably, the circular displacement disc assembly includes an in-plane displacement-allowing disc 8 fixedly mounted on the upper end of the hollow rotary table 7, eight equal-width radial sliding slots 81 axially symmetrically arranged on the in-plane displacement-allowing disc 8 along the radial direction, eight radial springs 82 corresponding to the eight equal-width radial sliding slots 81, and eight bidirectional locking sliders 83; a radial spring 82 and a bidirectional locking slide block 83 are arranged in the equal-width radial sliding chute 81; two ends of the radial spring 82 are respectively connected with the corresponding radial sliding chute 81 with the same width and the corresponding bidirectional locking sliding block 83; the bidirectional locking slider 83 can simultaneously abut against the outer circumferential surface of the lifting slide rod 42 in the elastic telescopic rod 4 and the inner walls of the two sides of the equal-width radial sliding groove 81.
Referring to fig. 5, preferably, the bidirectional locking slider 83 includes a rectangular plate 831 in sliding contact with inner walls of both sides of the constant-width radial sliding groove 81, an arc plate 833 in sliding contact with the cylindrical outer surface of the lifting sliding rod 42, and a trapezoidal plate 832 installed between the rectangular plate 831 and the arc plate 833; the radius of curvature of the arc plate 833 is equal to the radius of curvature of the lifting slide bar 42.
Preferably, the elastic telescopic rod 4 comprises a stationary sleeve 41 fixedly installed at the bottom of the mounting platform 2 along the vertical direction, a gravity balance spring 43 installed inside the stationary sleeve 41 along the vertical direction, a lifting slide rod 42 installed inside the stationary sleeve 41 with the upper end sliding, and a universal roller 44 rotatably installed on the lower end of the lifting slide rod 42; the two ends of the gravity balance spring 43 are respectively connected with the bottom of the mounting platform 2 and the top of the lifting slide rod 42.
Preferably, the hollow rotating table 7 is a cylindrical barrel body with an open upper end.
Preferably, the bidirectional locking slider 83 is in free interference with the elevation slide bar 42 when the radial spring 82 is in a zero-deformation state.
Preferably, the gravity balance spring 43 is a compression-resistant metal coil spring, the stiffness of which is selected such that the maximum compressive deflection of the gravity balance spring 43 during operation does not exceed one twentieth of the free length. Therefore, when the mounting platform 2 is in a static balance state, the lowest end of the universal roller 44 is slightly higher than the inner bottom surface of the hollow rotary table 7, and when the connecting rod 3 is inclined, the distance between the mounting platform 2 and the vibration isolator base plate 1 is shortened, and the universal roller 44 starts to contact the inner bottom surface of the hollow rotary table 7. The vibration displacement of the mounting platform 2 in the horizontal plane usually makes the included angle between the connecting rod 3 and the vertical direction small, so the change value of the distance between the vibration isolator bottom plate 1 and the mounting platform 2 is not large, that is, the compression deformation of the gravity balance spring 43 is not large. Therefore, when the maximum compression deformation of the gravity balance spring 43 does not exceed one twentieth of the free length, the gravity moment of the total weight of the mounting platform 2 and the protected apparatus 20 relative to the position of the rolling bearing 52 can be almost completely balanced by the spring force moment of the gravity balance spring 43, i.e. the effect of the gravity moment coupling with the in-plane horizontal excitation is eliminated, and the stability of the static balance position is increased.
Preferably, the lower end of the rotating shaft 5 passes through a rolling bearing 52 installed on the vibration isolator base plate 1; the rotating shaft 5 is also provided with a bearing baffle 51 which is contacted with the inner ring of the rolling bearing 52.
The working principle and the working process of the invention are as follows:
it is first assumed that the mounting platform 2 with the protected apparatus 20 is in a static equilibrium state in the horizontal plane, i.e. the lifting slide bar 42 is in contact with eight bidirectional locking sliders 83 simultaneously.
When the protected device 20 is excited in any direction in the horizontal plane, which is not called as X-direction excitation, the mounting platform 2 will generate corresponding horizontal displacement, and at the same time, the elastic telescopic rod 4 is driven to move in the plane, so that the lifting sliding rod 42 enters one of the equal-width radial sliding grooves 81, and compresses the corresponding radial spring 82; at this time, if the protected apparatus 20 is excited again in the Y direction different from the original X direction in the horizontal plane, the elevation sliding rod 42 will push the in-plane displacement by the bidirectional locking slider 83 to allow the disc 8 and the hollow rotary table 7 to rotate, and the torsion spring 6 stores the torsion elastic potential energy. When the excitation is over, the lifting slide rod 42 returns to the initial equilibrium position under the action of the radial spring 82, while the torsion spring 6 releases its elastic potential, i.e. the moment of the torsion spring 6 makes the hollow rotary table 7 and the in-plane displacement allowing the disc 8 to rotate in reverse to the initial equilibrium state.
The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through creative efforts should fall within the scope of the present invention.
Claims (8)
1. A two-dimensional vibration isolator capable of exciting vibration isolation to any displacement in face comprises a vibration isolator bottom plate (1), and a mounting platform (2) used for mounting protected equipment (20) is arranged along a horizontal plane, and is characterized in that:
the vibration isolator is characterized by further comprising at least three connecting rods (3) which are equal in length and are arranged in parallel, an elastic telescopic rod (4) which is arranged on the lower bottom surface of the mounting platform (2) along the vertical direction, a rotating shaft (5) which is rotatably arranged on the vibration isolator bottom plate (1), a hollow rotating table (7) which is fixedly arranged on the rotating shaft (5), a circular displacement disc component which is fixedly arranged on the hollow rotating table (7), and torsion springs (6) which are sleeved at two ends of the rotating shaft (5) and are respectively connected with the vibration isolator bottom plate (1) and the hollow rotating table (7);
the lower end of the elastic telescopic rod (4) penetrates through the circular displacement disc assembly to extend into the hollow rotating table (7); when the connecting rod (3) is in an inclined state, the elastic telescopic rod (4) freely rolls on the inner bottom surface of the hollow rotating platform (7);
the circular displacement disc component is adapted to the elastic telescopic rod (4) to generate displacement in any direction in a horizontal plane, and simultaneously stores certain reset elastic potential energy;
the upper end of the connecting rod (3) is connected with the mounting platform (2) by a ball hinge, and the lower end of the connecting rod is connected with the vibration isolator bottom plate (1) by a ball hinge;
when the mounting platform (2) is located at a static balance position in a horizontal plane, the elastic telescopic rods (4) and the rotating shaft (5) are collinear, and at least three connecting rods (3) in a vertical state are axially symmetrical about the rotating shaft (5).
2. The two-dimensional vibration isolator capable of exciting and isolating any displacement in a face according to claim 1, wherein: the circular displacement disc assembly comprises an in-plane displacement allowable disc (8) fixedly arranged at the upper end of the hollow rotating table (7), eight equal-width radial sliding grooves (81) axially and symmetrically arranged on the in-plane displacement allowable disc (8) along the radius direction, eight radial springs (82) corresponding to the eight equal-width radial sliding grooves (81) and eight bidirectional locking sliding blocks (83); a radial spring (82) and a bidirectional locking sliding block (83) are arranged in one equal-width radial sliding chute (81); two ends of the radial spring (82) are respectively connected with the corresponding radial sliding chute (81) with the same width and the corresponding bidirectional locking sliding block (83); the bidirectional locking sliding block (83) can simultaneously abut against the outer circumferential surface of a lifting sliding rod (42) in the elastic telescopic rod (4) and the inner walls of the two sides of the equal-width radial sliding groove (81).
3. The two-dimensional vibration isolator capable of exciting and isolating any displacement in a face according to claim 2, wherein: the bidirectional locking sliding block (83) comprises a rectangular plate (831) in sliding contact with the inner walls of the two sides of the equal-width radial sliding chute (81), an arc-shaped plate (833) in sliding contact with the outer surface of the cylinder of the lifting sliding rod (42), and a trapezoidal plate (832) arranged between the rectangular plate (831) and the arc-shaped plate (833); the curvature radius of the arc-shaped plate (833) is equal to that of the lifting sliding rod (42).
4. The two-dimensional vibration isolator capable of exciting and isolating any displacement in a face according to claim 1, wherein: the elastic telescopic rod (4) comprises a static sleeve (41) fixedly arranged at the bottom of the mounting platform (2) along the vertical direction, a gravity balance spring (43) arranged in the static sleeve (41) along the vertical direction, a lifting slide rod (42) with the upper end arranged in the static sleeve (41) in a sliding manner, and a universal roller (44) rotatably arranged at the lower end of the lifting slide rod (42); and two ends of the gravity balance spring (43) are respectively connected with the bottom of the mounting platform (2) and the top of the lifting sliding rod (42).
5. The two-dimensional vibration isolator capable of exciting and isolating any displacement in a face according to claim 1, wherein: the hollow rotating platform (7) is a cylindrical barrel body with an opening at the upper end.
6. The two-dimensional vibration isolator capable of exciting and isolating any displacement in a face according to claim 2, wherein: when the radial spring (82) is in a zero deformation state, the bidirectional locking sliding block (83) is freely abutted against the lifting sliding rod (42).
7. The two-dimensional vibration isolator according to claim 4, wherein said vibration isolator is adapted to provide vibration isolation for any displacement within a face, and further comprising: the weight balance spring (43) is a pressure-resistant metal coil spring, and the rigidity of the weight balance spring is selected so that the maximum compression deformation of the weight balance spring (43) in the working process does not exceed one twentieth of the free length.
8. The two-dimensional vibration isolator capable of exciting and isolating any displacement in a face according to claim 1, wherein: the lower end of the rotating shaft (5) penetrates through a rolling bearing (52) arranged on the vibration isolator bottom plate (1); and the rotating shaft (5) is also provided with a bearing baffle (51) which is in contact with the inner ring of the rolling bearing (52).
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| CN202111292002.9A CN113738818B (en) | 2021-11-03 | 2021-11-03 | Two-dimensional vibration isolator capable of exciting and isolating any displacement in opposite surface |
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| CN202111292002.9A CN113738818B (en) | 2021-11-03 | 2021-11-03 | Two-dimensional vibration isolator capable of exciting and isolating any displacement in opposite surface |
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| CN113738818B true CN113738818B (en) | 2022-02-08 |
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| CN107250595A (en) * | 2014-12-05 | 2017-10-13 | Esm能源及振动控制技术米奇有限公司 | Adaptation pendulum-type buffer certainly with uprighting spring device |
| CN105605147A (en) * | 2016-01-29 | 2016-05-25 | 佛山市百安居减震科技有限公司 | Shock-insulating elastic returning mechanism with preset starting load and start-control shock insulating equipment with preset starting load |
| CN106114884A (en) * | 2016-06-28 | 2016-11-16 | 安庆市佰斯特电子科技有限公司 | A kind of unmanned plane based on Stewart parallel institution stops charging station |
| CN109577363A (en) * | 2018-12-26 | 2019-04-05 | 湖南科技大学 | A kind of universal vibration tuned mass damper of spherical linkage formula ultralow frequency |
| WO2020239590A1 (en) * | 2019-05-24 | 2020-12-03 | Soh Wind Tunnels Aps | Pendulum mass damper |
| CN112160439A (en) * | 2020-09-30 | 2021-01-01 | 广州大学 | Swinging tuned mass damper |
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