CN109058371B - Oscillator gasbag damping device - Google Patents
Oscillator gasbag damping device Download PDFInfo
- Publication number
- CN109058371B CN109058371B CN201811196895.5A CN201811196895A CN109058371B CN 109058371 B CN109058371 B CN 109058371B CN 201811196895 A CN201811196895 A CN 201811196895A CN 109058371 B CN109058371 B CN 109058371B
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- Prior art keywords
- air bag
- oscillator
- sliding
- airbag
- limiting
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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
- F16F15/023—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 fluid means
- F16F15/0232—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 fluid means with at least one gas spring
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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
- F16F15/021—Decoupling of vibrations by means of point-of-contact supports, e.g. ball bearings
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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
- F16F15/023—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 fluid means
- F16F15/0237—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 fluid means involving squeeze-film damping
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses an oscillator airbag damping device, which comprises: the first air bag and the second air bag are respectively connected to different surfaces of the oscillator; the first sliding part is connected to the bottom of the first air bag and used for realizing the sliding of the first air bag along a first direction; the second sliding part is connected to the bottom of the second air bag and used for realizing the sliding of the second air bag along a second direction, and the first direction is vertical to the second direction; when the first air bag stretches, the second air bag and the second sliding part slide along a second direction; when the second air bag stretches, the first air bag and the first sliding portion slide along a first direction. Above-mentioned oscillator gasbag damping device installs the gasbag in two directions, realizes effective absorption and isolation to the vibration energy homoenergetic of two directions to realize effectual reduction oscillator acceleration effect under the vibration environment, promote electronic equipment's under the vibration environment performance.
Description
Technical Field
The invention relates to the technical field of oscillators, in particular to an air bag damping device of an oscillator.
Background
At present, most oscillators are sensitive to acceleration, and output frequency signals of the oscillators are unstable in a vibration environment, so that the performance of electronic information equipment is reduced, and the oscillators become main factors for limiting the reduction of wireless detection performance. In the prior art, there are various methods for reducing the acceleration sensitivity of the oscillator, and the methods can be realized by adopting a mode such as spring isolation vibration or cushion isolation vibration, however, the materials have resonance points, low-frequency vibration close to the resonance points is amplified, and the damping effect is not obvious.
Disclosure of Invention
The invention aims to provide an oscillator air bag damping device which can meet the requirements of most vibration occasions.
To achieve the above object, the present invention provides an oscillator airbag damping device, comprising:
the first air bag and the second air bag are respectively connected to different surfaces of the oscillator;
the first sliding part is connected to the bottom of the first air bag and used for realizing the sliding of the first air bag along a first direction;
the second sliding part is connected to the bottom of the second air bag and used for realizing the sliding of the second air bag along a second direction, and the first direction is vertical to the second direction;
when the first air bag stretches, the second air bag and the second sliding part slide along a second direction; when the second air bag stretches, the first air bag and the first sliding portion slide along a first direction.
Preferably, the method further comprises the following steps:
the first limiting parts are arranged on two sides of the first sliding part and used for limiting the sliding distance of the first sliding part along the first direction;
and the second limiting parts are arranged on two sides of the second sliding part and used for limiting the sliding distance of the second sliding part along the second direction.
Preferably, the first limiting portion and the second limiting portion both include edge limiting plates, and a distance between the two edge limiting plates in the first direction and the second direction is adjustable.
Preferably, the edge limiting plate is specifically the board of bending that is the zigzag, the board of bending includes the bottom edge that can slide for the shell inside wall, is used for restricting the vertical lateral wall of the distance of sliding and is located the top edge of the portion top that slides.
Preferably, the top edge is triangular, and the bottom edge and the vertical side wall each comprise two mutually connected and vertically arranged side edges.
Preferably, the bending plate is integrally formed.
Preferably, the first and second sliding portions each include:
panels fixed to the bottoms of the first airbag and the second airbag respectively;
and the ball bearings are in rolling contact with the panel and are used for realizing the sliding of the first air bag and the second air bag along the first direction and the second direction respectively.
Preferably, a plurality of air bags are uniformly distributed on one side of any panel, and a plurality of balls are uniformly distributed on the other side of the panel.
Compared with the prior art, the oscillator airbag damping device provided by the invention has the advantages that when the oscillator is vibrated in the vertical direction, the first airbag is compressed and relaxed to absorb the vibration energy; at the moment, the second panel slides on the inner wall through the second ball, and the friction force is very small due to the action of the second ball, so that the second air bag has no elastic deformation, and the vibration can be absorbed by the first air bag; when the oscillator is vibrated in the horizontal direction, the second air bag is compressed and relaxed to absorb the energy of vibration; at the moment, the first panel slides on the inner wall through the first ball, and the friction force is very small due to the action of the first ball, so that the first air bag has no elastic deformation, and vibration energy is ensured to be absorbed by the second air bag; that is, install the gasbag in two directions, can realize effective absorption and isolation to the vibration energy homoenergetic of two directions to realize effectual reduction oscillator acceleration effect under the vibration environment, promote electronic equipment's under the vibration environment performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an oscillator and an oscillator airbag damping device thereof according to an embodiment of the present invention;
fig. 2 is a schematic view of the oscillator of fig. 1 when it is vibrated in a vertical direction;
FIG. 3 is a schematic diagram of the oscillator of FIG. 1 as it vibrates in a horizontal direction;
FIG. 4 is a schematic diagram of the oscillator of FIG. 1 as it vibrates in other directions;
FIG. 5 is a schematic view of a position relationship between the panel and the first position-limiting portion in FIG. 1;
fig. 6 is a schematic structural view of the first position-limiting portion in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 6, fig. 1 is a schematic structural diagram of an oscillator and an airbag damping device of the oscillator according to an embodiment of the present invention; fig. 2 is a schematic view of the oscillator of fig. 1 when it is vibrated in a vertical direction; FIG. 3 is a schematic diagram of the oscillator of FIG. 1 as it vibrates in a horizontal direction; FIG. 4 is a schematic diagram of the oscillator of FIG. 1 as it vibrates in other directions; FIG. 5 is a schematic view of a position relationship between the panel and the first position-limiting portion in FIG. 1; fig. 6 is a schematic structural view of the first position-limiting portion in fig. 1.
The invention provides an oscillator airbag damping device, which comprises a first airbag 21 and a second airbag 22, wherein one end of the first airbag 21 is connected to a first surface of an oscillator 1, one end of the second airbag 22 is connected to a second surface of the oscillator 1, and the first surface and the second surface of the oscillator 1 are different; as shown in fig. 1, one end of the first airbag 21 is provided on the bottom surface of the oscillator 1, and one end of the second airbag 22 is provided on the side surface of the oscillator 1. The first airbag 21 is disposed vertically, and the second airbag 22 is disposed horizontally.
The bottom of the first air bag 21 is connected with the first sliding part, and the bottom of the second air bag 22 is connected with the second sliding part; under the action of the first sliding part, the first airbag 21 can slide along a first direction, namely the left and right direction shown in the specification and the attached figure 1; under the action of the second sliding portion, the second airbag 22 can slide along the second direction, namely the up-down direction shown in fig. 1 in the specification. Obviously, the first direction is perpendicular to the second direction.
When the first airbag 21 expands and contracts, that is, the first airbag 21 moves in the up-and-down direction, the second airbag 22 and the second sliding portion slide in the second direction, as shown in fig. 2 in the specification; when the second airbag 22 expands and contracts, that is, the second airbag 22 moves in the horizontal direction, the first airbag 21 and the first sliding portion slide in the first direction, as shown in fig. 3 in the specification. Obviously, the first airbag 21 and the second airbag 22 should be disposed vertically, and the expansion and contraction directions of the two airbags are perpendicular to each other. The first air bag 21 and the second air bag 22 are independent from each other in expansion and contraction and do not influence each other; when the oscillator 1 is subjected to acceleration in other directions, the first air bag 21 and the second air bag 22 can move simultaneously, and the acceleration is resolved in the up-down direction and the horizontal direction, so that the shock absorption effect is achieved, as shown in the attached figure 4 in the specification.
It can be seen that no matter the first airbag 21 or the second airbag 22 is compressed or expanded, the first sliding portion and the second sliding portion can be fed back, so that the first airbag 21 and the second airbag 22 can be independently stretched, and mutual influence is avoided.
In order to limit the moving distance of the first airbag 21 in the first direction, first limiting portions may be disposed at both sides of the first sliding portion to limit the sliding distance of the first sliding portion in the first direction (the horizontal direction shown in fig. 1); and second limiting parts are arranged on two sides of the second sliding part and used for limiting the sliding distance of the second sliding part along a second direction (the vertical direction shown in the attached drawing 1).
The first limiting part is specifically two first edge limiting plates 51 which are horizontally arranged, and as shown in the accompanying drawings 1 to 6 in the specification, the distance between the two first edge limiting plates 51 determines the movable horizontal distance of the first sliding part; similarly, the second limiting portion is specifically two second edge limiting plates 52 which are vertically arranged, and the distance between the two second edge limiting plates 52 determines the movable vertical distance of the second sliding portion.
The first edge restriction plate 51 and the second edge restriction plate 52 have the same shape and are only different in position, and the first edge restriction plate 51 will be described as an example; the first edge limiting plate 51 may be a zigzag-shaped bending plate, which includes a bottom edge 513, vertical sidewalls 512 and a top edge 511, as shown in fig. 6 of the specification.
To the shape structure of the first sliding portion and the second sliding portion, the first sliding portion includes a first panel 31, the first panel 31 is horizontally disposed, two first edge limiting plates 51 are disposed on the front and rear sides of the first panel 31, and the horizontal movement range of the first panel 31 is limited under the action of the two first edge limiting plates 51. Similarly, the second sliding portion includes the second panel 32, the second panel 32 is vertically disposed, and two second edge limiting plates 52 are disposed on the upper and lower sides of the second panel 32, and the vertical movement range of the second panel 32 is limited by the two second edge limiting plates 52.
A first ball 41 is arranged below the first panel 31, and the first ball 41 can be in rolling contact with the first panel 31 to ensure that the first air bag 21 horizontally moves under the action of the first panel 31; one side of the second panel 32 is provided with a second ball 42, and the second ball 42 can be in rolling contact with the second panel 32 to ensure that the vertical movement of the second air bag 22 is realized under the action of the second panel 32; that is, when the oscillator 1 receives vibration in the direction perpendicular to the bottom surface (vibration in the up-down direction shown in fig. 1), the first air bag 21 is compressed and expanded, absorbing the energy of the vibration; at this time, the second panel 32 slides on the inner wall through the second ball 42, and the friction force is small due to the second ball 42, so that the second air bag 22 has no elastic deformation, and vibration energy is ensured to be absorbed by the first air bag 21; similarly, when the oscillator 1 is subjected to vibration in the vertical bottom direction (vibration in the horizontal direction shown in fig. 1), the second air bag 22 is compressed and expanded, absorbing the energy of the vibration; at this time, the first air bag 21 slides on the inner wall through the first ball 41, and the friction force is small due to the first ball 41, so that the first air bag 21 has no elastic deformation, and vibration energy is ensured to be absorbed by the second air bag 22.
For the first panel 31, four first airbags 21 may be uniformly arranged on the upper surface of the first panel 31, and four first edge limiting plates 51 are respectively located at four corners of the first panel 31 to limit the horizontal movement range of the first panel 31; the lower surface of the first panel 31 may be uniformly provided with a plurality of first balls 41. Similarly, one side surface of the second panel 32 may be uniformly provided with a plurality of second airbags 22, the other side surface of the second panel 32 may be uniformly provided with a plurality of second balls 42, and four second edge restriction plates 52 are respectively located at four corners of the second panel 32 to restrict the vertical movement range of the second panel 32.
That is, when the oscillator 1 is subjected to vibration in the vertical direction, the oscillator is subjected to vibration in the vertical direction at this time, and the first air bag 21 is compressed and expanded, and has the ability to absorb vibration; the second ball 42 slides on the side fixing surface, so that the first air bag 21 is compressed and expanded only in the vertical direction without generating other deformation; when the oscillator 1 is subjected to vibration in the horizontal direction, the oscillator 1 is subjected to vibration in the horizontal direction at this time, and the second air bag 22 is compressed and expanded, and has the ability to absorb vibration; the first ball 41 slides on the bottom surface fixing surface, so that the second airbag 22 is compressed and expanded only in the horizontal direction without generating other deformation. The case when the oscillator 1 is subjected to vibrations in other directions in the plane; the vibration is decomposed into horizontal and vertical vibrations, and the first and second air cells 21 and 22 are compressed and expanded at the same time, absorbing energy of the horizontal and vertical vibrations, respectively.
The present invention further provides an oscillator, including an oscillator airbag damping device, where the oscillator may be a crystal oscillator or a surface acoustic wave oscillator, and the damping device is the damping device described in the above embodiments, and the oscillator may refer to the prior art, which is described in detail herein.
According to the oscillator and the oscillator airbag damping device thereof provided by the invention, the first airbag 21 and the second airbag 22 are respectively fixed on the first panel 31 and the second panel 32, and the first panel 31 and the second panel 32 are respectively pressed on the inner wall of the shell through the first ball 41 and the second ball 42, and the friction coefficient of the first ball 41 and the second ball 42 is extremely small, so that the first airbag 21 and the second airbag 22 are only compressed and relaxed, the oblique stretching deformation is not generated, and the vibration in any direction on a plane can be better absorbed.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The oscillator airbag damping device provided by the present invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. An oscillator airbag damping device, comprising:
the first air bag and the second air bag are respectively connected to different surfaces of the oscillator;
the first sliding part is connected to the bottom of the first air bag and used for realizing the sliding of the first air bag along a first direction;
the second sliding part is connected to the bottom of the second air bag and used for realizing the sliding of the second air bag along a second direction, and the first direction is vertical to the second direction;
when the first air bag stretches, the second air bag and the second sliding part slide along a second direction; when the second air bag stretches, the first air bag and the first sliding portion slide along a first direction.
2. The oscillator airbag damping device of claim 1, further comprising:
the first limiting parts are arranged on two sides of the first sliding part and used for limiting the sliding distance of the first sliding part along the first direction;
and the second limiting parts are arranged on two sides of the second sliding part and used for limiting the sliding distance of the second sliding part along the second direction.
3. The oscillator airbag damping apparatus of claim 2, wherein the first and second limiting portions each comprise an edge limiting plate, and a spacing between the edge limiting plates in the first and second directions is adjustable.
4. The oscillator airbag damping device according to claim 3, wherein the edge limiting plate is a zigzag-shaped bent plate, and the bent plate includes a bottom edge capable of sliding relative to an inner side wall of the housing, a vertical side wall for limiting a sliding distance, and a top edge located above the sliding portion.
5. The oscillator airbag damping apparatus of claim 4, wherein the top edge is triangular and the bottom edge and the vertical sidewall each comprise two interconnected and vertically disposed side edges.
6. The oscillator airbag damping apparatus of claim 5, wherein the bend plate is provided as an integral molding.
7. The oscillator airbag damping device according to any one of claims 1 to 6, characterized in that the first sliding portion and the second sliding portion each include:
panels fixed to the bottoms of the first airbag and the second airbag respectively;
and the ball bearings are in rolling contact with the panel and are used for realizing the sliding of the first air bag and the second air bag along the first direction and the second direction respectively.
8. The oscillator airbag damping apparatus of claim 7, wherein a plurality of the airbags are evenly distributed on one side of any one of the panels, and a plurality of the balls are evenly distributed on the other side of any one of the panels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811196895.5A CN109058371B (en) | 2018-10-15 | 2018-10-15 | Oscillator gasbag damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811196895.5A CN109058371B (en) | 2018-10-15 | 2018-10-15 | Oscillator gasbag damping device |
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| CN109058371A CN109058371A (en) | 2018-12-21 |
| CN109058371B true CN109058371B (en) | 2020-02-07 |
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| EP3744633B1 (en) * | 2019-05-27 | 2021-12-15 | AIRBUS HELICOPTERS DEUTSCHLAND GmbH | A vibration dampening structure for a rotary wing aircraft |
| CN112096662A (en) * | 2020-09-23 | 2020-12-18 | 黄斌 | Noise reduction and environment protection water pump assembly of high-performance polymer pipe |
| CN114165552A (en) * | 2021-12-17 | 2022-03-11 | 江西洪都航空工业集团有限责任公司 | Air spring |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0198727A (en) * | 1987-10-09 | 1989-04-17 | Bridgestone Corp | Vibration isolator |
| JP3666040B2 (en) * | 1994-12-27 | 2005-06-29 | 日本原子力研究所 | 3D seismic isolation device |
| JP2006336815A (en) * | 2005-06-06 | 2006-12-14 | Seiwa:Kk | Base isolation device |
| JP2012042016A (en) * | 2010-08-20 | 2012-03-01 | Shimizu Corp | Three-dimensional base isolation device |
| CN103306316A (en) * | 2013-05-09 | 2013-09-18 | 东北林业大学 | Three-dimensional composite friction pendulum vibration isolator based on nonlinear energy trap |
| CN104061277A (en) * | 2014-06-15 | 2014-09-24 | 上海理工大学 | Metal rubber crystal oscillator damping device |
| CN106567908B (en) * | 2016-11-17 | 2017-09-12 | 石家庄铁道大学 | A kind of segmentation negative rigidity mechanism and the vibration absorber with the mechanism |
| CN107264425A (en) * | 2017-06-09 | 2017-10-20 | 张思银 | A kind of pilotless automobile radar detedtor of anti-shake |
| CN107588151A (en) * | 2017-09-07 | 2018-01-16 | 长沙小新新能源科技有限公司 | Wind power generation plant |
| CN107869548A (en) * | 2017-12-11 | 2018-04-03 | 高邮市迅达工程机械集团有限公司 | A kind of mine excavator with cabinet damping device |
| CN108374955A (en) * | 2018-05-05 | 2018-08-07 | 武汉京天鼎承科技有限公司 | Internet of Things radio frequency identification security device |
| CN108311379A (en) * | 2018-05-09 | 2018-07-24 | 新乡市东振机械制造有限公司 | A kind of direct discharging screen pedestal having shock-absorbing function |
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