CN113931794B - Elastic module and vibration suppression assembly - Google Patents
Elastic module and vibration suppression assembly Download PDFInfo
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- CN113931794B CN113931794B CN202010608676.4A CN202010608676A CN113931794B CN 113931794 B CN113931794 B CN 113931794B CN 202010608676 A CN202010608676 A CN 202010608676A CN 113931794 B CN113931794 B CN 113931794B
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- elastic body
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- module according
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- 230000001629 suppression Effects 0.000 title claims abstract description 29
- 230000000670 limiting effect Effects 0.000 claims abstract description 15
- 229920001971 elastomer Polymers 0.000 claims description 31
- 239000000806 elastomer Substances 0.000 claims description 20
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000010248 power generation Methods 0.000 description 6
- 230000005284 excitation Effects 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0296—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor to prevent, counteract or reduce noise emissions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention provides an elastic module and a vibration suppression assembly. The elastic module is applied to in the vibration suppression subassembly, and the elastic module includes: the upper end of the elastic body is connected with the lower end of the mass body of the vibration suppression assembly; and the bottom structure is arranged at the free end of the elastic body, and the swing amplitude of the bottom structure is limited in a limiting anti-collision piece arranged on the equipment to be damped. The elastic module can limit the movement stroke of the tuned mass damper, avoid the direct collision between the vibration suppression component and the equipment to be damped, and protect the structures of the equipment to be damped and the tuned mass damper.
Description
Technical Field
The invention relates to the technical field of machinery, in particular to an elastic module and a vibration suppression assembly.
Background
Wind power generation units are distributed over most of the surrounding area on earth, and can be roughly divided into land-based wind power generation units and offshore wind power generation units. Whether it be an onshore wind power generation set or an offshore wind power generation set, the operation of the set needs to face various excitation sources (including external excitation and self-excitation, such as external uncertain wind load, wave load, ocean current load, tidal load, unbalance of the set structure, rotation of the impeller itself and the like), and the input of the determined and uncertain excitation sources can cause various uncertainties of the set operation characteristics and abnormal performances, wherein the most intuitive response is set vibration.
The tuned mass damper/dynamic vibration absorber of the wind turbine generator is a device which is widely applied and used for inhibiting vibration, and plays a role in protecting the safety of the wind turbine generator and ensuring the continuous power generation of the wind turbine generator when the wind turbine generator is subjected to complex and changeable excitation outside and inside. FIG. 1 is a schematic diagram of a physical model of a tuned mass damper, where m, k, and c are the mass, stiffness, respectively, of the primary structureDamping; m is m d 、k d 、c d The mass, the rigidity and the damping of the tuned mass damper are respectively of an additional structure, and the tuned mass damper is added. In the vibration scene of the main structure, the corresponding m is adjusted d 、k d 、c d The tuned mass damper and the main structure are operated in opposite phase, so that vibration energy of the main structure can be absorbed and dissipated.
However, under some severe vibration conditions, a larger displacement stroke of the tuned mass damper can occur, and the tuned mass damper is usually installed at a position where the vibration of the main structure is larger, and is limited by the space of the working environment, the tuned mass damper may contact or even collide with the main structure, a light person may damage equipment installed on the main structure and the structure of the damper itself, and a heavy person may cause safety hazard to the main structure and even the whole wind turbine generator.
Disclosure of Invention
The present invention has been made to solve the above-mentioned problems, and an object thereof is to provide a device for limiting the vibration amplitude of a mass of a tuned mass damper.
In order to achieve the above object, an aspect of the present invention provides an elastic module, which is applied to a vibration suppression assembly, and includes: the upper end of the elastic body is connected with the lower end of the mass body of the vibration suppression assembly; and the bottom structure is arranged at the free end of the elastic body, and the swing amplitude of the bottom structure is limited in a limiting anti-collision piece arranged on the equipment to be damped.
Optionally, the elastic module may further include an elastic body mounting member, an upper end of the elastic body is fixed to the elastic body mounting member, and the elastic body mounting member is connected to a lower end of the mass body of the vibration suppression assembly.
Optionally, the elastic module may further include an adjusting spacer, which may be disposed between the elastic body mount and the mass body, to adjust a distance between the elastic body and the mass body.
Alternatively, the elastic module may include a plurality of elastic bodies, the plurality of elastic bodies may be arranged in a ring shape, two elastic bodies may be a group, and one group of elastic bodies may be connected to one elastic body mounting member.
Optionally, the number and the external profile of the adjusting gaskets and the elastomer mounting parts may be the same, each adjusting gasket corresponds to a group of elastomers, and the plurality of adjusting gaskets are annularly arranged and have a shrinkage shape part with gradually reduced circumferential width along with approaching to the center of a circle.
Alternatively, the elastic body may be columnar with a first predetermined height, and the upper end surface and the free end surface of the elastic body are respectively protruded to form mounting parts with a second predetermined height, and are respectively fixedly connected with the elastic body mounting part and the bottom structure.
Alternatively, the elastic body may be provided with a protruding annular reinforcing ring in the middle region in the height direction.
Alternatively, the elastic body mounting member may be formed with a first concave portion, the first concave portion is formed with a first through hole, and the mounting portion on the upper end surface of the elastic body is fixedly connected in the first concave portion after passing through the first through hole.
Optionally, the base structure may include: the bottom plate is fixed at the lower end of the elastic body and can swing freely; and the collision piece surrounds the outer side of the bottom plate, and when the elastic module collides with the limiting anti-collision piece, the collision piece contacts with the limiting anti-collision piece.
Alternatively, a plurality of second concave portions may be formed on the base plate, and a second through hole may be formed on each of the second concave portions, through which the mounting portion on the free end surface of the elastic body passes and is fixedly connected.
Alternatively, the elastic module may be mounted to the mass by fasteners that pass through holes in the elastomeric mount and the tuning shims to attach the elastic module to the mass.
Alternatively, the bottom plate may be an integrally formed annular plate, and the collision member is an elastic member covering the entire height of the outer peripheral side of the bottom plate.
Alternatively, the limit bumper may be a bumper ring, and the amplitude of oscillation of the bottom structure is limited to the annular cavity of the bumper ring.
Alternatively, the elastomer may be a rubber column.
Another aspect of the invention provides a vibration suppression assembly comprising an elastic module as described above.
Compared with the prior art, the invention can limit the movement stroke of the tuned mass damper by arranging the elastic module connected with the lower part of the mass block of the tuned mass damper, so that the vibration suppression assembly is prevented from directly colliding with equipment to be damped, the elastic body of the elastic module can consume the energy generated by collision between the bottom structure of the elastic module and the limiting anti-collision piece, the vibration suppression effect is achieved, and the equipment on the main structure and the structure of the damper are protected.
Drawings
Features will become apparent to those skilled in the art from the detailed description of an exemplary embodiment with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a physical model of a tuned mass damper
Fig. 2 is a schematic view of a partial structure of an elastic module according to an exemplary embodiment of the present invention.
Fig. 3 is a top view of fig. 2.
Fig. 4 is a schematic view of a restraint bumper according to an exemplary embodiment of the present invention.
Reference numerals illustrate:
1. elastomer, 11, annular reinforcing rings, 12 and 13, mounting part, 2 bottom plate, 21, second concave part, 22, second through hole, 3, elastomer mounting part, 31, first concave part, 32, first through hole, 33, fastener, 4, adjusting gasket, 41, shrink shape part, 5, limit bumper, 6, collision piece.
Detailed Description
Hereinafter, an elastic module and a vibration damping device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
It will be appreciated that the use of the terms first, second, etc. may not indicate a sequence or importance, but rather the terms first, second, etc. may be used to distinguish one element from another.
For convenience of description, the terms "left", "right", "upper", "lower" and "upper" are used hereinafter in accordance with the left, right, upper and lower directions of the drawings, but do not limit the structure of the assembly of the present invention.
It should also be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined; can be directly connected or indirectly connected. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
Fig. 2 is a schematic view of a partial structure of an elastic module according to an exemplary embodiment of the present invention. Fig. 3 is a top view of fig. 2. Fig. 4 is a schematic view of a restraint bumper according to an exemplary embodiment of the present invention.
As shown in fig. 2 to 4, an aspect of the present invention provides an elastic module applied to a vibration suppressing assembly (not shown). The vibration suppression assembly may be a tuned mass damper/dynamic absorber that includes a mass body, and the specific structure of the vibration suppression assembly will not be described in detail herein.
The elastic module comprises an elastic body 1 and a bottom structure. The upper end of the elastic body 1 is connected with the lower end of the mass body of the vibration suppression assembly. The bottom structure is mounted at the lower end (free end) of the elastic body 1, the swing amplitude of the bottom structure is limited in the limiting anti-collision piece 5, and the limiting anti-collision piece 5 is mounted on the equipment to be damped.
When the vibration suppression assembly causes the mass body to generate a swing stroke exceeding the expected range under the severe vibration working condition, the elastic body of the elastic module deforms to absorb vibration energy, and the bottom structure of the elastic module collides with the limiting anti-collision piece 5 to consume the vibration energy. The swing amplitude of the bottom structure is limited in the limiting anti-collision piece 5 so as to limit the movement stroke of the vibration suppression component, and meanwhile, the elastic body 1 can deform after collision to consume energy generated by collision, so that transient impact load generated on the vibration suppression component in the collision process is effectively relieved.
According to the invention, the elastic module can effectively restrict the motion travel of the vibration suppression assembly to prevent the vibration suppression assembly from directly colliding with the equipment to be damped, so that the safety of the equipment to be damped is protected.
In an embodiment, as shown in fig. 4, the limit bumper 5 may be a bumper ring including a sidewall 51 and an annular cavity 52 surrounded by the sidewall 51. The amplitude of the oscillation of the bottom structure is limited to the annular cavity 52 of the anti-collision ring.
As shown in fig. 2 and 3, the elastic module may further comprise an elastic body mount 3 in order to facilitate the connection between the elastic body 1 and the mass body. The elastic body mounting piece 3 is connected with the lower end of the mass body of the vibration suppression assembly, and the upper end of the elastic body 1 is fixed on the elastic body mounting piece 3. However, the present invention is not limited thereto, and the elastic body may be connected to the lower end of the mass body by bonding, integral molding, or the like.
The elastic module may also comprise an adjustment pad 4. The adjusting shim 4 is arranged between the elastomer mount 3 and the mass body. The adjusting gasket 4 can adjust the connection matching degree of the elastic body mounting piece 3 and the upper mass block, and can adjust the distance between the elastic body 1 and the mass body in the first direction X by changing the quantity of the adjusting gasket 4 in the first direction X, so that the swing amplitude of the bottom structure is ensured to be in the structural range of the limiting anti-collision piece 5. Here, the first direction X refers to the height direction of the elastic body 1.
In this embodiment, the elastic module includes a plurality of elastic bodies 1, the plurality of elastic bodies 1 are annularly arranged and uniformly arranged along the circumferential direction, two elastic bodies 1 are grouped, and one elastic body 1 is connected to one elastic body mounting member 3. The number and arrangement of the elastic bodies 1 may be selected according to the space structure of the tuned mass damper and the vibration suppressing effect, for example, a plurality of elastic bodies may be unevenly arranged along the circumferential direction, and in addition, only one elastic body 1 may be provided, but in consideration of the fact that for the tuned mass damper for a wind turbine generator, a single elastic body 1 has a large volume, it is preferable to use a plurality of elastic bodies 1.
The number and the external profile of the adjusting gaskets 4 are approximately the same as those of the elastic body mounting pieces 3, each adjusting gasket 4 corresponds to one group of elastic bodies 1, the plurality of adjusting gaskets 4 are annularly arranged, each adjusting gasket 4 is provided with a first shrinkage shape part 41 with the circumferential width gradually decreasing along with the approach to the annular center, each adjusting gasket 4 is provided with a second shrinkage shape part 42 with the circumferential width gradually decreasing along with the separation from the annular center, the area of the second shrinkage shape part 42 is smaller than that of the first shrinkage shape part 41, so that a certain swinging degree of freedom exists between the elastic bodies 1 of the adjacent groups in the radial direction and the circumferential direction, on one hand, the mutual interference of the elastic bodies 1 of the adjacent groups is avoided, and on the other hand, a deformation space is reserved for the elastic bodies 1 so as to play a damping vibration attenuation role of the elastic bodies 1.
The elastic body 1 has a columnar shape having a first predetermined height H1 in the first direction X. For example, the elastic body 1 may be a cylindrical rubber column. On the upper end face and the free end face of the elastic body 1 in the first direction X, mounting portions 12 and 13 having a second predetermined height H2 are formed to protrude, respectively, and these mounting portions 12 and 13 are fixedly connected to the elastic body mounting member 3 and the bottom structure, respectively. The mounting portions 12 and 13 may be formed in a cylindrical shape, and have a diameter smaller than that of the elastic body 1, which is also cylindrical, for example. In the middle region in the height direction of the elastic body 1, a protruding annular reinforcing ring 11 is provided. The number of the reinforcing rings 11 depends on the length of the rubber column, so that damage to the rubber column caused by too large swinging stroke of the rubber column when the vibration is too large is avoided.
The elastic body mount 3 is formed with a first concave portion 31, and the first concave portion 31 is formed with a first through hole 32. When two elastic bodies of one set are correspondingly mounted on one elastic body mount 3, two first concave portions 31 are formed on each elastic body mount 33 at the same radius length portion. The mounting portion 12 on the upper end surface of the elastic body 1 is fixed in the first concave portion 31 after passing through the first through hole 32, for example, an outer thread is formed on the outer periphery of the mounting portion 12 on the upper end surface of the elastic body 1, and the elastic body mounting member 3 is fixedly connected with the elastic body 1 by screwing the first nut onto the mounting portion 12 on the upper end surface of the elastic body 1. Optionally, a spacer may also be provided between the first nut and the elastomeric mount 3. It should be understood that the manner of connection between the elastomer mount 3 and the elastomer 1 of the present invention is not limited thereto, and for example, the elastomer mount 3 may be fastened to the elastomer 1 by other fasteners (e.g., pins, rivets, anchors, etc.), and may be connected to each other by bonding, etc.
The elastic module may be mounted to the mass of the vibration suppression assembly by fasteners 33. For example, through holes may be provided in the elastic body mount 3, and fasteners 33 (e.g., pins, rivets, screws, etc.) may be inserted into the mass body after passing through the elastic body mount 3 and the adjustment shims 4 from the lower side, to thereby connect the elastic module and the mass body. In the case where two elastic bodies 1 are in a group, through holes may be formed in the elastic body mount 3 and the adjustment shim 4 at positions corresponding to the gap between the two elastic bodies 1, that is, the fastener 33 may be provided on the first contracted shape portion 41 and/or the second contracted shape portion 42 of the elastic body mount 3.
The bottom structure may comprise a bottom plate 2, the bottom plate 2 being fixed to the lower end of the elastic body 1 so as to be free to swing.
In this embodiment, the bottom plate 2 may be an integrally formed annular plate, i.e. an entire annular structure. Similar to the structure of the above-described elastomer mount, the bottom plate 2 is also in a recessed structure at the mounting position of the rubber column. Specifically, the base plate 2 is formed with a plurality of second concave portions 21, each second concave portion 21 is formed with a second through hole 22, and the mounting portion 13 on the free end surface of the elastic body 1 is fixedly connected in the second concave portion 21 after passing through the second through hole 22. For example, the outer periphery of the mounting portion 13 on the free end surface of the elastic body 1 is formed with an external thread, and after the mounting portion 13 passes through the second through hole 22 into the second concave portion 21, is screwed to the mounting portion 13 on the free end surface of the elastic body 1 by the second nut, thereby fixedly connecting the bottom plate 2 and the lower end of the elastic body 1 together. Optionally, a spacer may also be provided between the second nut and the bottom plate 2. It should be understood that the connection between the base plate 2 and the elastic body 1 of the present invention is not limited thereto, and for example, the base plate 2 may be fastened to the elastic body 1 by other fasteners (e.g., pins, rivets, anchors, etc.), and may be connected to each other by bonding, etc.
When the mass body of the vibration suppressing assembly collides with the limit bumper 5 beyond an intended stroke, the bottom plate 2 of the elastic module may further include a collision piece 6 provided on an outer side surface of the bottom plate 2 in order to alleviate an impact load and noise generated by the collision, when the elastic module collides with the limit bumper 5, the collision piece 6 comes into contact with the limit bumper 5, and the collision piece 6 may be an elastic piece, for example, formed of a soft material such as rubber, and preferably, is coated on the entire outer peripheral side of the bottom plate 2. However, the present invention is not limited thereto, and as an alternative, a soft material such as aluminum plate or rubber may be provided on the inner ring side wall of the stopper 5.
According to the invention, the upper part of the elastic module is connected with the mass body of the vibration suppression assembly, and the bottom structure is limited in the limiting anti-collision piece 5. The stroke of the mass body of the tuned mass damper of the wind generating set can be effectively restrained and checked, so that the damper can run in a preset space to avoid structural collision, and meanwhile, the rubber column structure can be utilized to effectively relieve large-swing motion of the mass body and transient impact load generated in the check collision process.
However, the present invention is not limited thereto, and the elastic module and the limit bumper 5 are not limited to the above-described structural forms according to the structural form and the movement form of the tuned mass damper. For example, for a damper moving in a fixed direction, the limit bumper 5 may be designed as a flat plate structure, and the limit bumper 5 may be designed such that the bottom surface of the bottom structure of the elastic module collides with the limit bumper 5 directly to achieve a non-return effect.
Yet another aspect of the invention provides a vibration suppression assembly comprising an elastic module as described above.
In summary, the invention limits the movement stroke of the mass body of the damper through the elastic module, and enables the mass body to run in a preset space (such as a cavity of an anti-collision ring), and collide with an anti-collision member when necessary, so that the structure safety of the main structure and the damper is protected, and meanwhile, the structure of the rubber column is adopted, so that vibration energy generated by collision is consumed, and vibration is effectively damped.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims.
Claims (13)
1. An elastic module for use in a vibration suppression assembly, the elastic module comprising:
the upper end of the elastic body (1) is connected with the lower end of the mass body of the vibration suppression assembly, and the lower end of the elastic body (1) is a free end and can swing freely; and
the bottom structure is arranged at the free end of the elastic body (1), the swing amplitude of the bottom structure is limited in a limiting anti-collision piece (5) arranged on the equipment to be damped,
wherein the bottom structure comprises:
a bottom plate (2) fixed to the lower end of the elastic body (1); and
and the collision piece (6) surrounds the outer side of the bottom plate (2), and when the elastic module collides with the limiting anti-collision piece (5), the collision piece (6) contacts with the limiting anti-collision piece (5).
2. The elastic module according to claim 1, further comprising an elastomer mount (3), said upper end of said elastomer (1) being fixed to said elastomer mount (3), said elastomer mount (3) being connected to a lower end of a mass of said vibration suppression assembly.
3. The elastic module according to claim 2, further comprising an adjustment shim (4), the adjustment shim (4) being arranged between the elastomer mount (3) and the mass, adjusting the distance between the elastomer (1) and the mass.
4. A spring module according to claim 3, characterized in that the spring module comprises a plurality of said springs (1), a plurality of said springs (1) being arranged in a ring, two of said springs (1) being in a group, one of said springs (1) being connected to one of said spring mounts (3).
5. The elastic module according to claim 4, wherein the number and the external profile of the adjusting shims (4) are the same as those of the elastic body mounting pieces (3), each adjusting shim (4) corresponds to a group of elastic bodies (1), and the adjusting shims (4) are annularly arranged and have a contracted shape portion (41) with gradually decreasing circumferential width along with approaching the center of a circle.
6. The elastic module according to claim 2, wherein the elastic body (1) is columnar with a first preset height, and mounting parts (12, 13) with a second preset height are respectively formed on the upper end surface and the free end surface of the elastic body (1) in a protruding mode and fixedly connected with the elastic body mounting piece (3) and the bottom structure.
7. Elastic module according to claim 6, characterized in that the elastomer body (1) is provided with a protruding annular stiffening ring (11) in the middle area in the height direction.
8. The elastic module according to claim 6, characterized in that the elastic body mounting member (3) is formed with a first concave portion (31), a first through hole (32) is formed in the first concave portion (31), and the mounting portion on the upper end surface of the elastic body (1) is fixedly connected in the first concave portion (31) after passing through the first through hole (32).
9. An elastic module according to any one of claims 6-8, characterized in that the base plate (2) is formed with a plurality of second concave portions (21), each second concave portion (21) is formed with a second through hole (22), and the mounting portion on the free end surface of the elastic body (1) passes through the second through hole (22) and is fixedly connected.
10. The elastic module according to claim 4, characterized in that the elastic module is mounted to the mass by means of a fastener (33), the fastener (33) being connected to the mass after passing through holes in the elastomer mount (3) and the tuning shims (4).
11. The elastic module according to claim 1, characterized in that the bottom plate (2) is an integrally formed annular plate, and the collision member (6) is an elastic member covering the entire height of the outer peripheral side of the bottom plate (2).
12. The elastic module according to claim 1, characterized in that the elastomer (1) is a rubber column.
13. A vibration suppression assembly comprising an elastic module according to any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010608676.4A CN113931794B (en) | 2020-06-29 | 2020-06-29 | Elastic module and vibration suppression assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010608676.4A CN113931794B (en) | 2020-06-29 | 2020-06-29 | Elastic module and vibration suppression assembly |
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| CN113931794A CN113931794A (en) | 2022-01-14 |
| CN113931794B true CN113931794B (en) | 2023-05-16 |
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| CN110528948A (en) * | 2019-08-12 | 2019-12-03 | 同济大学 | A kind of multiple energy consumption collision adaptive type tuned mass damper |
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