CN112049889A - Transportation vibration damping device and transportation vibration damping structure suitable for aerospace products - Google Patents
Transportation vibration damping device and transportation vibration damping structure suitable for aerospace products Download PDFInfo
- Publication number
- CN112049889A CN112049889A CN202010879917.9A CN202010879917A CN112049889A CN 112049889 A CN112049889 A CN 112049889A CN 202010879917 A CN202010879917 A CN 202010879917A CN 112049889 A CN112049889 A CN 112049889A
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- China
- Prior art keywords
- air
- cavity support
- support
- air cavity
- air spring
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Classifications
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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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
- F16F13/20—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper characterised by comprising also a pneumatic spring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
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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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/26—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions
- F16F13/262—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions changing geometry of passages between working and equilibration chambers, e.g. cross-sectional area or length
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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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
- F16F2222/126—Fluid damping using gases
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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 provides a transportation vibration damping device and a transportation vibration damping structure suitable for aerospace products, which comprise: an air spring and an air cavity support; the air spring is connected to the air cavity support, an air resistance hole is formed in the contact surface of the air cavity support and the air spring, and the inner space of the air spring is communicated with the inner space of the air cavity support through the air resistance hole; in a compressed or stretched state of the air spring, internal air can flow between the air spring and the air chamber support through the air blocking hole, thereby generating damping. The air spring is used for realizing vibration reduction, the effect of increasing the damping by the airflow resistance is realized through the air resistance hole, the vibration reduction efficiency is greatly improved, and a new idea and selection are provided for the vibration reduction design of aerospace product transportation.
Description
Technical Field
The invention relates to the field of transportation equipment, in particular to a transportation vibration damping device and a transportation vibration damping structure, and particularly relates to the transportation vibration damping device and the transportation vibration damping structure which are suitable for aerospace products.
Background
The aerospace product is a high-precision product, serious problems of structural damage, electric appliance failure, potential damage and the like of the aerospace product can be caused by an overlarge vibration environment, and great risks and uncertainty are brought to the development of the aerospace product. Space products are often systematic engineering, are researched and developed by participating in together in a plurality of units, and need to be transported many times in the research and development process, and include the transportation of whole ware level, also include the transportation of subassembly level, each link all puts forward higher requirement to the vibration, can not produce unnecessary hidden danger and destruction because of the transportation vibration in the transportation, therefore the shock absorber is the indispensable device in the space products transportation. The vibration absorber plays a role in isolating vibration and impact brought by a road surface and a vehicle in the transportation process, ensures that a product is not subjected to a too large vibration environment and plays a role in protecting the safety of the product.
At present, China has no test standard and design standard related to the transportation vibration of the aerospace products, the vibration condition of the aerospace products in the transportation process is evaluated by means of post analysis and comparison, and the selection of the vibration absorbers is also basically selected from mature commercial products. At present, aerospace products are transported by using special packing boxes, vibration reduction devices are generally arranged in the packing boxes, and through search and discovery, patent document CN2171034 discloses a high-bearing-capacity steel wire rope vibration absorber, wherein the vibration reduction effect of the steel wire rope vibration absorber is not obvious, and the aerospace products are easily damaged in the transportation process.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a transportation vibration damping device and a transportation vibration damping structure suitable for aerospace products.
According to the invention, the transportation vibration damper suitable for aerospace products comprises: an air spring 1 and an air cavity support 2;
the air spring 1 is connected to the air cavity support 2, an air resistance hole 9 is formed in the contact surface of the air cavity support 2 and the air spring 1, and the inner space of the air spring 1 is communicated with the inner space of the air cavity support 2 through the air resistance hole 9;
in a compressed or stretched state of the air spring 1, internal air can flow between the air spring 1 and the air chamber support 2 through the air blocking hole 9, thereby generating damping.
Preferably, the air spring 1 includes: an airbag 4 and a second mounting plate 5;
the air bag 4 is arranged between the first mounting plate 3 and the second mounting plate 5, and the second mounting plate 5 is connected with the contact surface of the air cavity support 2.
Preferably, the air spring 1 further includes:
a first mounting plate 3, the first mounting plate 3 is connected with or contacted with the transported object.
Preferably, the air cavity support 2 comprises:
the air resistance hole 9 is arranged on the top surface of the air cavity support 2;
and the buffer window 6 is arranged on the side surface of the air cavity support 2, and the buffer window 6 is sealed by an elastic sealing element 8.
Preferably, the air cavity support 2 further comprises:
the inflation hole 10 is arranged on the air cavity support 2 and can inflate and deflate the interior of the air cavity support 2;
and the support mounting plate 7 is arranged on the bottom surface of the air cavity support 2.
Preferably, the elastic seal 8 comprises a sealing rubber.
Preferably, the bladder 4 comprises a rubber bladder.
Preferably, the larger the weight of the transported object and the lower the vibration frequency, the smaller the size or the smaller the number of the air resistance holes (9).
According to the invention, the transportation vibration damping structure comprises one or more of the transportation vibration damping devices suitable for aerospace products.
Preferably, the air chamber air spring device further comprises a packing box, wherein the air chamber support 2 is connected to each inner wall of the packing box, and the air spring 1 is supported and connected to the outer surface of the transported object.
Compared with the prior art, the invention has the following beneficial effects:
1. the air spring is used for realizing vibration reduction, the effect of increasing the damping by the airflow resistance is realized through the air resistance hole, the vibration reduction efficiency is greatly improved, and a new idea and selection are provided for the vibration reduction design of aerospace product transportation.
2. The structure of the invention is easy to realize, simple to process, reusable, economic and environment-friendly, and does not need complicated maintenance.
3. The structure of the invention can be designed and adjusted according to the weight and the dynamic characteristics of the transported product, and has wide applicability.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a side view of an air spring of the present invention;
FIG. 3 is a side view of an air cavity support of the present invention;
FIG. 4 is a top view of an air cavity support of the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
Example 1
As shown in fig. 1, the present embodiment provides a transportation vibration damping device suitable for aerospace products, which includes two parts, namely an air spring 1 and an air chamber support 2.
As shown in fig. 2 to 4, the air spring 1 is connected to the air chamber support 2, an air blocking hole 9 is formed in a contact surface of the air chamber support 2 and the air spring 1, and an internal space of the air spring 1 is communicated with an internal space of the air chamber support 2 through the air blocking hole 9.
The air spring 1 includes: a first mounting plate 3, an airbag 4 and a second mounting plate 5. The air bag 4 is arranged between the first mounting plate 3 and the second mounting plate 5, the second mounting plate 5 is connected with the contact surface of the air cavity support 2, and the first mounting plate 3 is connected with or contacted with the transported object.
The working principle is as follows:
the object to be transported is arranged on the vibration damping device, the air spring 1 and the air cavity support 2 are balanced through air pressure through the air resistance hole 9, and vibration is damped through the air spring 1. When vibration is generated in the transportation process, the air spring 1 is stretched or compressed, the air pressure balance between the air spring 1 and the air cavity support 2 is broken, air flows between the air spring 1 and the air cavity support 2 through the air resistance hole 9, and therefore damping is generated, and the vibration is further reduced.
In this embodiment, the air chamber support 2 functions to support the air spring, provide air resistance, and buffer the air flow. The elastic seal 8 comprises sealing rubber and the bladder 4 comprises a rubber bladder so that the entire air chamber support resembles a telescopically fixed bladder. The damping window 6 and the elastic seal 8 together increase the compressibility of the air in the air chamber support 2, so that there is sufficient space for air flow between the air spring 1 and the air chamber support 2 when the air is vibrating during transport. The buffer window 6 and the elastic seal 8 give the air chamber support 2 a certain elasticity, some functions like an air bag. The parameters of the air cavity support, such as the volume, the rigidity and the strength of the sealing rubber, and the like are designed according to the weight of the transported product.
Parameters such as the bearing weight, the air pressure, the rigidity and the frequency of the air spring 1 are designed and selected according to the dynamic characteristics of aerospace products and the dynamic characteristics of transport vehicles, and structural resonance is avoided. Generally, the larger the weight of the transported object and the lower the vibration frequency, the smaller the size or the smaller the number of the air resistance holes (9). The air cavity support 2 is made of metal materials and plays a role in supporting the weight above the air spring.
The size of the air resistance hole is designed according to the overall dynamic characteristics of the aerospace product and the vibration damper, and sufficient resistance can be generated when air flow passes through the air resistance hole 9.
The air inflation holes are required to be inflated and exhausted in time when the product is disassembled and assembled, so that the air spring and the pressure intensity in the air cavity meet the requirement, the support can be provided, and the rigidity meeting the requirement is realized.
The object to be transported and the air spring, the air spring and the air cavity support, and the air cavity support and the transport package box are fixed by screws, and sealing measures are used to ensure the sealing performance of the whole device.
Example 2
On the basis of embodiment 1, a specific application mode of embodiment 1 is also provided in this embodiment. A transport damping structure comprising one or more transport damping devices suitable for use in aerospace products. Air chamber supports 2 are connected to the inner walls of the packing box, and air springs 1 are supported and connected to the outer surface of the transported object.
The transportation vibration damper can be used singly or in combination according to the size and the weight of the transported object, and can effectively damp the transported object in the transportation process.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A transportation vibration damping device suitable for aerospace products, comprising: an air spring (1) and an air cavity support (2);
the air spring (1) is connected to the air cavity support (2), an air resistance hole (9) is formed in the contact surface of the air cavity support (2) and the air spring (1), and the inner space of the air spring (1) is communicated with the inner space of the air cavity support (2) through the air resistance hole (9);
in a compressed or stretched state of the air spring (1), internal air can flow between the air spring (1) and the air chamber support (2) through the air resistance hole (9), thereby generating damping.
2. A transport damping device suitable for aerospace products according to claim 1, wherein the air spring (1) comprises: an air bag (4) and a second mounting plate (5);
the air bag (4) is arranged between the first mounting plate (3) and the second mounting plate (5), and the second mounting plate (5) is connected with the contact surface of the air cavity support (2).
3. A transport damping device suitable for aerospace products according to claim 2, wherein the air spring (1) further comprises:
a first mounting plate (3), wherein the first mounting plate (3) is connected with or contacted with the transported object.
4. A transport vibration damping device suitable for aerospace products according to claim 1, wherein the air cavity mount (2) comprises:
the air resistance hole (9) is arranged on the top surface of the air cavity support (2);
and the buffer window (6) is arranged on the side surface of the air cavity support (2), and the buffer window (6) is sealed through an elastic sealing element (8).
5. A transport vibration damping device adapted for aerospace products according to claim 4, wherein the air cavity mount (2) further comprises:
the inflation hole (10) is arranged on the air cavity support (2) and can inflate and deflate the interior of the air cavity support (2);
and the support mounting plate (7) is arranged on the bottom surface of the air cavity support (2).
6. A transport vibration damping device adapted for aerospace products according to claim 4, wherein the resilient seal (8) comprises a sealing rubber.
7. A transport vibration damping device suitable for aerospace products according to claim 2, wherein the bladder (4) comprises a rubber bladder.
8. A transport vibration damping device adapted for aerospace products according to claim 1, wherein the larger the weight of the transported object and the lower the vibration frequency, the smaller the size or the smaller the number of the air resistance holes (9).
9. A transport damping structure comprising one or more transport damping devices suitable for use in aerospace products according to any one of claims 1 to 8.
10. The structure of claim 9, further comprising a packing box, wherein the air chamber support (2) is connected to each inner wall of the packing box, and the air spring (1) is supported and connected to the outer surface of the transported object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010879917.9A CN112049889A (en) | 2020-08-27 | 2020-08-27 | Transportation vibration damping device and transportation vibration damping structure suitable for aerospace products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010879917.9A CN112049889A (en) | 2020-08-27 | 2020-08-27 | Transportation vibration damping device and transportation vibration damping structure suitable for aerospace products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112049889A true CN112049889A (en) | 2020-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010879917.9A Pending CN112049889A (en) | 2020-08-27 | 2020-08-27 | Transportation vibration damping device and transportation vibration damping structure suitable for aerospace products |
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| Country | Link |
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| CN (1) | CN112049889A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943843A (en) * | 2021-02-23 | 2021-06-11 | 常州大学 | Bionic vibration isolation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2663729Y (en) * | 2002-04-06 | 2004-12-15 | 裕一挨恩西斯株式会社 | Air spring |
| KR20070023119A (en) * | 2005-08-23 | 2007-02-28 | 현대자동차주식회사 | An air spring of suspension system for vehicles |
| CN202402543U (en) * | 2011-10-17 | 2012-08-29 | 杨洁 | Air spring capable of adjusting static and dynamic stiffness through capacity occupancy and pressure difference |
| CN103671692A (en) * | 2013-11-12 | 2014-03-26 | 北京卫星环境工程研究所 | Packaging box shock attenuation system for transportation working condition changes of spacecraft |
| CN104315068A (en) * | 2014-08-28 | 2015-01-28 | 哈尔滨恒信防微振技术开发有限公司 | Low-frequency air spring vibration isolator with motion converter |
| CN204942372U (en) * | 2015-09-10 | 2016-01-06 | 诸暨市康宇弹簧有限公司 | A kind of air spring system of external auxiliary chamber |
| US20180257449A1 (en) * | 2017-03-09 | 2018-09-13 | Watson & Chalin Manufacturing, Inc. | Damping convoluted air spring |
| CN208291877U (en) * | 2018-04-13 | 2018-12-28 | 南京市高淳包装材料厂 | A kind of cushion packaging case |
| CN208699535U (en) * | 2018-08-01 | 2019-04-05 | 焦作华飞电子电器股份有限公司 | A kind of transport antidetonation clamp device |
| CN209294565U (en) * | 2018-10-30 | 2019-08-23 | 中国船舶重工集团公司第七一九研究所 | A kind of pipeline low frequency suspension and support |
-
2020
- 2020-08-27 CN CN202010879917.9A patent/CN112049889A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2663729Y (en) * | 2002-04-06 | 2004-12-15 | 裕一挨恩西斯株式会社 | Air spring |
| KR20070023119A (en) * | 2005-08-23 | 2007-02-28 | 현대자동차주식회사 | An air spring of suspension system for vehicles |
| CN202402543U (en) * | 2011-10-17 | 2012-08-29 | 杨洁 | Air spring capable of adjusting static and dynamic stiffness through capacity occupancy and pressure difference |
| CN103671692A (en) * | 2013-11-12 | 2014-03-26 | 北京卫星环境工程研究所 | Packaging box shock attenuation system for transportation working condition changes of spacecraft |
| CN104315068A (en) * | 2014-08-28 | 2015-01-28 | 哈尔滨恒信防微振技术开发有限公司 | Low-frequency air spring vibration isolator with motion converter |
| CN204942372U (en) * | 2015-09-10 | 2016-01-06 | 诸暨市康宇弹簧有限公司 | A kind of air spring system of external auxiliary chamber |
| US20180257449A1 (en) * | 2017-03-09 | 2018-09-13 | Watson & Chalin Manufacturing, Inc. | Damping convoluted air spring |
| CN208291877U (en) * | 2018-04-13 | 2018-12-28 | 南京市高淳包装材料厂 | A kind of cushion packaging case |
| CN208699535U (en) * | 2018-08-01 | 2019-04-05 | 焦作华飞电子电器股份有限公司 | A kind of transport antidetonation clamp device |
| CN209294565U (en) * | 2018-10-30 | 2019-08-23 | 中国船舶重工集团公司第七一九研究所 | A kind of pipeline low frequency suspension and support |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112943843A (en) * | 2021-02-23 | 2021-06-11 | 常州大学 | Bionic vibration isolation system |
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Application publication date: 20201208 |
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