CN113983099A - Three-dimensional vibration isolator based on metal rubber and adjustable in height and working method of three-dimensional vibration isolator - Google Patents
Three-dimensional vibration isolator based on metal rubber and adjustable in height and working method of three-dimensional vibration isolator Download PDFInfo
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- CN113983099A CN113983099A CN202111275554.9A CN202111275554A CN113983099A CN 113983099 A CN113983099 A CN 113983099A CN 202111275554 A CN202111275554 A CN 202111275554A CN 113983099 A CN113983099 A CN 113983099A
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- metal rubber
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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
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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
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention provides a three-way vibration isolator with adjustable height based on metal rubber, which comprises a shell and a threaded pressure rod positioned in the middle of the shell, wherein a transverse vibration isolation structure is arranged at the upper part of the threaded pressure rod, and an axial vibration isolation structure is arranged at the lower part of the threaded pressure rod. The vibration isolator has the advantages of ingenious structure, reasonable design, good performance and convenience in installation, overcomes the characteristic of complex structure of the vibration isolator, improves the environmental adaptability of the vibration isolator, and simultaneously enhances the three-dimensional vibration isolation capability of the vibration isolator.
Description
Technical Field
The invention relates to a three-way vibration isolator with adjustable height based on metal rubber and a working method thereof.
Background
At present, in vibration isolators produced in China, vibration reduction of a load force is mostly realized in a certain direction, but for some precision equipment, the vibration isolators are required to be capable of reducing vibration of vibration isolation objects in all directions of a three-dimensional space, and more rigorous requirements are provided for the environmental adaptability of the vibration isolators, namely, products are required to adapt to conditions such as large overload and strong impact and meet requirements such as wide temperature (-10 ℃ -300 ℃), the three-way vibration isolation structure can better attenuate and absorb vibration energy from all directions, the three-way vibration isolation structure is very important for electronic elements in some electronic equipment, however, the structure which can realize three-way vibration isolation in a small part faces the problems of complexity, heavy load, short service life and the like.
Therefore, it is necessary to develop a vibration isolator which has long service life, high performance, low maintenance cost, small size and scale, is convenient to install and can realize three-dimensional vibration damping.
Disclosure of Invention
The invention improves the problems, namely the technical problem to be solved by the invention is to provide a three-way vibration isolator with adjustable height based on metal rubber and a working method thereof, solve the problem of short service life of the traditional vibration isolator, overcome the characteristic of complex structure of the vibration isolator, improve the environmental adaptability of the vibration isolator and simultaneously enhance the three-way vibration isolation capability of the vibration isolator.
The specific embodiment of the invention is formed by comprising a shell and a thread pressure rod positioned in the middle of the shell, wherein the upper part of the thread pressure rod is provided with a transverse vibration isolation structure, and the lower part of the thread pressure rod is provided with an axial vibration isolation structure.
Further, horizontal vibration isolation structure is including installing the chute lid on upper portion in the casing, chute lid inside evenly is equipped with at least three arc spring leaf, is provided with the clamping ring between the three arc spring leaf, chute lid inside is provided with a plurality of spouts, and every arc spring leaf both ends are connected with the extrusion slider that sets up in the spout, the extrusion slider lateral part is provided with horizontal metal rubber component.
Further, the casing includes shell and base, axial vibration isolation structure includes a plurality of axial metal rubber component of tandem installation on the base, and the density of a plurality of axial metal rubber component increases progressively from top to bottom in proper order, be provided with the calathiform reed between screw depression bar lateral part and the base.
Furthermore, the upper end of the bowl-shaped reed is fixed by at least two locking nuts sleeved on the threaded compression rod, and the lower end of the bowl-shaped reed is fixed on the base through a first screw.
Furthermore, the upper end of the compression ring is also fixed by a locking nut, and the locking nut is in threaded connection with the threaded compression rod.
Furthermore, an upper top cover is arranged at the upper end of the sliding chute cover, a step clamping seat is arranged at the upper part of the shell, and the lower end of the sliding chute cover is arranged on the step clamping seat.
Further, the chute cover comprises an upper chute cover and a lower chute cover.
Furthermore, a bearing table is arranged at the upper end of the threaded pressing rod, and a pressure plate is arranged at the lower part of the threaded pressing rod.
Further, the working method of the three-way vibration isolator based on the metal rubber and adjustable in height comprises the following steps: (1) the vibration-isolated object is connected with the bearing table, and the bowl-shaped reed and the axial metal rubber element are pre-tightened by adjusting the position of the locking nut on the threaded pressure rod; (2) the arc spring piece and the transverse metal rubber element are pre-tightened through an outer ring of the pressing wheel and a locking nut above the pressing ring; (3) when the electrical equipment is vibrated by the outside, the axial vibration is transmitted to the threaded compression bar by the bearing platform and extrudes axial metal rubber elements with different densities in the base under the buffer of the bowl-shaped reed, and the damping effect of the axial metal rubber elements is achieved due to the damping effect of the axial metal rubber elements; (4) meanwhile, the transverse vibration borne by the bearing table also acts on the compression ring under the transmission of the threaded compression rod, the compression ring acts on the arc-shaped spring piece again, and the arc-shaped spring piece plays a role in buffering; (5) when the arc spring piece is acted by an acting force, the extrusion sliding block is driven to move in the sliding groove, and then the transverse metal rubber element is extruded, so that the aim of transverse vibration reduction is fulfilled.
Compared with the prior art, the invention has the following beneficial effects: the device has the advantages that the structure is ingenious, the design is reasonable, the height of the vibration isolator can be adjusted, the height of the threaded compression bar is adjusted through the two locking nuts, compared with the traditional vibration isolator with invariable height, the situation that the height of an application occasion is limited is greatly reduced, meanwhile, the initial rigidity of the vibration isolator can be adjusted to a certain extent, and the application scenes of the vibration isolator are increased; the arc-shaped spring piece in the transverse vibration isolation structure is movably connected with the extrusion sliding block to drive the extrusion sliding block to extrude a transverse metal rubber element, so that transverse vibration reduction is realized under a small-size structure; 4 groups of axial metal rubber elements with different densities in the axial vibration isolation structure are used as damping elements, so that the vibration isolation condition of the same equipment under different loading conditions can be better met, and meanwhile, the damping of the vibration isolator is increased, and the vibration isolation effect is better; meanwhile, the transverse metal rubber element and the axial metal rubber element are vibration damping elements made of metal wires and rubber through a certain process, have the excellent characteristics of ageing resistance, high temperature resistance, corrosion resistance and the like compared with common rubber materials, and can be applied to vibration isolation of various working equipment under severe working conditions.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the present invention;
FIG. 3 is a schematic structural view of a lateral vibration isolation structure according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a lateral vibration isolation structure according to an embodiment of the present invention;
in the figure: 1-a bearing platform, 2-a pressure ring, 3-a shell, 4-a base, 5-a threaded pressure rod, 6-an upper top cover, 7-a locking nut, 8-a bowl-shaped reed, 9-an axial metal rubber component, 10-an upper chute cover, 11-a lower chute cover, 12-an arc-shaped reed, 13-a fixing pin, 14-an extrusion sliding block, 15-a transverse metal rubber component, 16-a chute, 17-a pressure plate, 104-a first screw, 101-a second screw, 102-a bolt and 103-a third screw.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example (b): referring to the attached drawings 1-4, the provided metal rubber height-adjustable three-way vibration isolator comprises a shell and a threaded compression bar 5 positioned in the middle of the shell, wherein a transverse vibration isolation structure is arranged at the upper part of the threaded compression bar, and an axial vibration isolation structure is arranged at the lower part of the threaded compression bar.
In this embodiment, the transverse vibration isolation structure comprises a chute cover arranged at the upper part in the shell, at least three arc-shaped spring pieces 12 are uniformly arranged in the chute cover, a pressing ring 2 is arranged between the three arc-shaped spring pieces, the pressing ring is in tangential contact with the three arc-shaped spring pieces, a plurality of chutes 16 are arranged in the chute cover, two ends of each arc-shaped spring piece are connected with an extrusion sliding block 14 arranged in each chute through fixing pins 13, and transverse metal rubber elements 15 are arranged on the side parts of the extrusion sliding blocks; the transverse rubber-metal element may be curved.
The sliding groove is arc-shaped.
An upper top cover 6 is arranged at the upper end of the chute cover, a step clamping seat is arranged at the upper part of the shell, and the lower end of the chute cover is arranged on the step clamping seat; the upper top cover and the shell are fixedly connected by a second screw 101 and are arranged on the base.
The sliding chute cover comprises an upper sliding chute cover 10 and a lower sliding chute cover 11; the upper chute cover and the lower chute cover are connected by a third screw 103.
The upper end of the threaded pressure rod is provided with a bearing table 1, and the upper end of the threaded pressure rod is provided with a threaded flange for threaded connection with the bearing table; and a pressure plate 17 is arranged at the lower part of the threaded pressure rod.
When the electric device vibrates, the arc-shaped spring pieces 12 and the transverse metal rubber member 15 absorb energy from the transverse vibration.
In the embodiment, the shell comprises a shell 3 and a base 4, and the shell and the base are connected by bolts 102; the axial vibration isolation structure comprises a plurality of axial metal rubber elements 9 which are installed on the base in series, the density of the plurality of axial metal rubber elements is sequentially increased from top to bottom, and a bowl-shaped reed 8 is arranged between the side part of the threaded compression bar and the base; the axial metal rubber element may be in the shape of a circular ring.
The upper end of the bowl-shaped reed is fixed by at least two locking nuts 7 sleeved on the threaded compression bar, and the lower end of the bowl-shaped reed is fixed on the base through a first screw 104; meanwhile, the two locking nuts can adjust the height of the threaded pressure rod, and the function of adjusting the height of the shock absorber is achieved.
The upper end of the compression ring is also fixed by a locking nut 7, and the locking nut is in threaded connection with the threaded compression bar.
When the electric apparatus vibrates, the energy of the axial vibration is absorbed through the bowl-shaped spring 8 and the axial metal rubber member 9.
The middle part of the base is provided with a limiting space for stacking axial metal rubber elements.
In this embodiment, horizontal metal rubber component and axial metal rubber component are made through complicated technology by rubber and wire, compare in ordinary rubber material and have ageing-resistant, high temperature resistant, good characteristics such as corrosion-resistant, can be applied to the vibration isolation of various operating equipment in abominable operating mode, replace traditional rubber or damping alloy material and strengthened the low frequency vibration isolation performance, adopt the mode of combined structure formula simultaneously, combine axial vibration isolation structure and horizontal vibration isolation structure jointly.
In this embodiment, the working steps are as follows: (1) the vibration-isolated object is connected with the bearing table, and the bowl-shaped reed and the axial metal rubber element are pre-tightened by adjusting the position of the locking nut on the threaded pressure rod; (2) the arc spring piece and the transverse metal rubber element are pre-tightened through an outer ring of the pressing wheel and a locking nut above the pressing ring; (3) when the electrical equipment is vibrated by the outside, the axial vibration is transmitted to the threaded compression bar by the bearing platform and extrudes axial metal rubber elements with different densities in the base under the buffer of the bowl-shaped reed, and the damping effect of the axial metal rubber elements is achieved due to the damping effect of the axial metal rubber elements; (4) meanwhile, the transverse vibration borne by the bearing table also acts on the compression ring under the transmission of the threaded compression rod, the compression ring acts on the arc-shaped spring piece again, and the arc-shaped spring piece plays a role in buffering; (5) when the arc spring piece is acted by an acting force, the extrusion sliding block is driven to move in the sliding groove, and then the transverse metal rubber element is extruded, so that the aim of transverse vibration reduction is fulfilled.
Any embodiment disclosed herein above is meant to disclose, unless otherwise indicated, all numerical ranges disclosed as being preferred, and any person skilled in the art would understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Since the numerical values are too numerous to be exhaustive, some of the numerical values are disclosed in the present invention to illustrate the technical solutions of the present invention, and the above-mentioned numerical values should not be construed as limiting the scope of the present invention.
If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the terms "first" and "second" are used merely to distinguish one element from another in a descriptive sense and are not intended to have a special meaning unless otherwise stated.
Meanwhile, if the invention as described above discloses or relates to parts or structural members fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated.
Any part provided by the invention can be assembled by a plurality of independent components or can be manufactured by an integral forming process.
Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides a three-dimensional isolator based on metal rubber adjustable height, its characterized in that includes the casing and is located the screw thread depression bar in casing middle part, screw thread depression bar upper portion is provided with horizontal vibration isolation structure, screw thread depression bar lower part is provided with axial vibration isolation structure.
2. The three-way vibration isolator based on metal rubber adjustable height as claimed in claim 1, wherein the lateral vibration isolation structure comprises a chute cover mounted at the upper part in the housing, at least three arc-shaped spring pieces are uniformly arranged in the chute cover, a compression ring is arranged between the three arc-shaped spring pieces, a plurality of chutes are arranged in the chute cover, two ends of each arc-shaped spring piece are connected with extrusion sliders arranged in the chutes, and lateral parts of the extrusion sliders are provided with lateral metal rubber elements.
3. The three-way vibration isolator based on metal rubber height adjustment according to claim 2, wherein the housing comprises a shell and a base, the axial vibration isolation structure comprises a plurality of axial metal rubber elements which are serially arranged on the base, the density of the plurality of axial metal rubber elements increases from top to bottom, and a bowl-shaped reed is arranged between the side part of the threaded compression bar and the base.
4. The three-way vibration isolator based on metal rubber with adjustable height as claimed in claim 3, wherein the upper end of the bowl-shaped spring plate is fixed by at least two locking nuts sleeved on the threaded compression rod, and the lower end of the bowl-shaped spring plate is fixed on the base through a first screw.
5. The three-way vibration isolator based on metal rubber with the adjustable height as claimed in claim 4, wherein the upper end of the compression ring is also fixed by a locking nut, and the locking nut is in threaded connection with the threaded compression rod.
6. The three-way vibration isolator based on metal rubber with adjustable height as claimed in claim 5, wherein the upper end of the chute cover is provided with an upper top cover, the upper part of the housing is provided with a step clamping seat, and the lower end of the chute cover is mounted on the step clamping seat.
7. The metal-rubber height-adjustable three-way vibration isolator according to claim 6, wherein said chute cover comprises an upper chute cover and a lower chute cover.
8. The three-way vibration isolator based on metal rubber with adjustable height as claimed in claim 7, wherein a bearing platform is arranged at the upper end of the threaded compression rod, and a pressure plate is arranged at the lower part of the threaded compression rod.
9. A method of operating the three-way height-adjustable metal-rubber-based isolator of claim 8, comprising the steps of: (1) the vibration-isolated object is connected with the bearing table, and the bowl-shaped reed and the axial metal rubber element are pre-tightened by adjusting the position of the locking nut on the threaded pressure rod; (2) the arc spring piece and the transverse metal rubber element are pre-tightened through an outer ring of the pressing wheel and a locking nut above the pressing ring; (3) when the electrical equipment is vibrated by the outside, the axial vibration is transmitted to the threaded compression bar by the bearing platform and extrudes axial metal rubber elements with different densities in the base under the buffer of the bowl-shaped reed, and the damping effect of the axial metal rubber elements is achieved due to the damping effect of the axial metal rubber elements; (4) meanwhile, the transverse vibration borne by the bearing table also acts on the compression ring under the transmission of the threaded compression rod, the compression ring acts on the arc-shaped spring piece again, and the arc-shaped spring piece plays a role in buffering; (5) when the arc spring piece is acted by an acting force, the extrusion sliding block is driven to move in the sliding groove, and then the transverse metal rubber element is extruded, so that the aim of transverse vibration reduction is fulfilled.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111275554.9A CN113983099B (en) | 2021-10-29 | 2021-10-29 | Three-dimensional vibration isolator based on metal rubber and adjustable in height and working method of three-dimensional vibration isolator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111275554.9A CN113983099B (en) | 2021-10-29 | 2021-10-29 | Three-dimensional vibration isolator based on metal rubber and adjustable in height and working method of three-dimensional vibration isolator |
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| CN113983099A true CN113983099A (en) | 2022-01-28 |
| CN113983099B CN113983099B (en) | 2022-09-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718988A (en) * | 2022-03-31 | 2022-07-08 | 北京控制工程研究所 | Satellite flywheel vibration isolator based on flexible frame body |
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| EP0450576A2 (en) * | 1990-04-02 | 1991-10-09 | Volkswagen Aktiengesellschaft | Bodywork side mounting of a spring and damper unit and method of manufacturing such a mounting |
| CN103148143A (en) * | 2013-03-15 | 2013-06-12 | 南京捷诺环境技术有限公司 | Variable damping and variable rigidity bottom vibration isolator |
| CN103277443A (en) * | 2013-04-24 | 2013-09-04 | 南京捷诺环境技术有限公司 | Vibration isolator resisting inclination |
| CN204647114U (en) * | 2015-03-11 | 2015-09-16 | 南京捷诺环境技术有限公司 | Naval vessel indication control board resisting strong impact, anti-inclination vibration isolator |
| US20170175845A1 (en) * | 2015-12-16 | 2017-06-22 | Integrated Dynamics Engineering Gmbh | Vibration isolator with a vertically effective pneumatic spring |
| CN107289054A (en) * | 2017-07-11 | 2017-10-24 | 中国电子科技集团公司第三十八研究所 | A kind of three-way rigidity adjustable shock isolation device |
| CN107740843A (en) * | 2017-11-17 | 2018-02-27 | 北京市劳动保护科学研究所 | A kind of cam bawl negative stiffness structure low frequency vibration isolation device |
| CN112413024A (en) * | 2020-11-12 | 2021-02-26 | 中国人民解放军海军士官学校 | Impact-resistant multi-degree-of-freedom composite vibration isolator and vibration isolation system |
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2021
- 2021-10-29 CN CN202111275554.9A patent/CN113983099B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0450576A2 (en) * | 1990-04-02 | 1991-10-09 | Volkswagen Aktiengesellschaft | Bodywork side mounting of a spring and damper unit and method of manufacturing such a mounting |
| CN103148143A (en) * | 2013-03-15 | 2013-06-12 | 南京捷诺环境技术有限公司 | Variable damping and variable rigidity bottom vibration isolator |
| CN103277443A (en) * | 2013-04-24 | 2013-09-04 | 南京捷诺环境技术有限公司 | Vibration isolator resisting inclination |
| CN204647114U (en) * | 2015-03-11 | 2015-09-16 | 南京捷诺环境技术有限公司 | Naval vessel indication control board resisting strong impact, anti-inclination vibration isolator |
| US20170175845A1 (en) * | 2015-12-16 | 2017-06-22 | Integrated Dynamics Engineering Gmbh | Vibration isolator with a vertically effective pneumatic spring |
| CN107289054A (en) * | 2017-07-11 | 2017-10-24 | 中国电子科技集团公司第三十八研究所 | A kind of three-way rigidity adjustable shock isolation device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114718988A (en) * | 2022-03-31 | 2022-07-08 | 北京控制工程研究所 | Satellite flywheel vibration isolator based on flexible frame body |
| CN114718988B (en) * | 2022-03-31 | 2023-11-10 | 北京控制工程研究所 | Satellite flywheel vibration isolator based on flexible frame body |
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| CN113983099B (en) | 2022-09-23 |
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