CN111609079B - Vibration isolation sealing system - Google Patents
Vibration isolation sealing system Download PDFInfo
- Publication number
- CN111609079B CN111609079B CN202010467385.8A CN202010467385A CN111609079B CN 111609079 B CN111609079 B CN 111609079B CN 202010467385 A CN202010467385 A CN 202010467385A CN 111609079 B CN111609079 B CN 111609079B
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- sealing
- vibration isolation
- cabin body
- interface
- flexible
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- 238000007789 sealing Methods 0.000 title claims abstract description 105
- 238000002955 isolation Methods 0.000 title claims abstract description 39
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 43
- 230000005484 gravity Effects 0.000 claims description 17
- 230000000694 effects Effects 0.000 abstract description 9
- 230000000149 penetrating effect Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/08—Mounting arrangements for vessels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0153—Details of mounting arrangements
-
- 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)
- 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 relates to the technical field of vibration isolation sealing and discloses a vibration isolation sealing system. The vibration isolation sealing system comprises a sealing cabin body and an underframe used for supporting the sealing cabin body, wherein the bottom of the sealing cabin body is provided with an interface; the sealing cabin further comprises a load platform arranged inside the sealing cabin body and a support pedestal arranged outside the sealing cabin body, wherein a support piece at the bottom of the load platform penetrates through the interface to be fixed on the support pedestal, and a flexible sealing device is arranged between the support piece and the interface. In the above embodiment, the load platform falls on the support pedestal through the support piece penetrating out of the inside of the sealed cabin body, and is separated from the sealed cabin body, and meanwhile, the flexible sealing device is arranged between the support piece and the interface, so that the sealing effect is realized, the rigidity is lower, and the vibration isolation effect is improved.
Description
Technical Field
The invention relates to the technical field of vibration isolation sealing, in particular to a vibration isolation sealing system.
Background
Among the present large-scale space optics test device, generally carry out the vibration isolation with vacuum tank and internal load platform as a whole, directly arrange the vibration isolation device in vacuum tank below usually, fall on ground, however, the too big overweight of integrated device load, the vibration isolation device must have great rigidity in order to bear vertical load to influence the shock attenuation effect, on the inside test device of vacuum tank was conducted easily to the outside environmental vibration of vacuum tank, thereby influence the detection precision among the testing process.
Disclosure of Invention
The invention provides a vibration isolation sealing system, which is characterized in that a sealed cabin body and an internal load platform are respectively supported through a cabin penetrating type design, and are in flexible sealing connection, so that the vibration isolation effect of the load platform is improved.
The embodiment of the invention provides a vibration isolation sealing system which comprises a sealing cabin body, wherein the sealing cabin body is arranged on the ground, the bottom wall of the sealing cabin body is provided with an interface, and a sunken space positioned on the ground is arranged below the sealing cabin body;
still including setting up the inside load platform of the sealed cabin body and setting are in the outside support pedestal of the sealed cabin body, the support pedestal is located in the formula space that sinks, the support piece of load platform bottom passes the interface is fixed on the support pedestal, just support piece with be equipped with flexible sealing device between the interface.
In the above embodiment, the sealed cabin body is placed on the ground, the load platform is placed on the support pedestal through the support member penetrating from the inside of the sealed cabin body, and the support pedestal is located in the sunken space on the ground, so that the center of gravity of the whole system is low, and the system has good stability; the whole system supports the sealed cabin body and the load platform respectively, so that the stability is further enhanced; meanwhile, the supporting piece is connected with the interface in a sealing mode through the flexible sealing device, and due to the fact that the rigidity of the flexible sealing device is low, the sealing cabin body and the load platform inside the sealing cabin body have large dislocation allowance, and the vibration isolation effect is improved.
Optionally, the flexible sealing device is sleeved on the supporting member and extends to the interface along a radial direction;
the inner ring of the flexible sealing device is connected with the supporting piece in a sealing mode, and the outer ring of the flexible sealing device is connected with the interface in a sealing mode.
The flexible sealing device is of a flat structure, so that the rigidity of the whole system in the horizontal direction is obviously reduced, and the influence of low-frequency horizontal vibration on an internal load platform is effectively controlled.
Optionally, the flexible sealing device comprises a flexible connector, and the flexible connector has a corrugated structure. In this way, the flexible connecting member is extended outwards or further contracted inwards, so that the sealing cabin body has less influence on the load platform when vibrating.
Optionally, the bottom of the supporting pedestal is provided with a vibration isolation device, so that the stability of the loading platform is further enhanced.
Optionally, the vibration isolation device comprises a plurality of sets of air springs. The air spring has good flexibility in the horizontal direction and the vertical direction, and can simultaneously inhibit vibration in the horizontal direction and vibration in the vertical direction.
Optionally, a flaring structure is arranged at the interface position, and the flexible sealing device is located in the flaring structure.
Optionally, the bottom of support pedestal is equipped with the focus along the direction of gravity and adjusts the structure, the focus is adjusted the structure to the bottom in formula space that sinks extends, and hang in on the support pedestal. Therefore, the center of gravity of the supporting pedestal and the center of gravity adjusting structure is moved downwards, and the stability is enhanced.
Optionally, the support pedestal is provided with a boss, and the support member is fixedly connected with the boss. Wherein, the cross sectional dimension of boss is greater than the cross sectional dimension of support piece to increased the lifting surface area who supports the pedestal, made the structure more firm.
Drawings
Fig. 1 is a schematic structural diagram of a vibration isolation sealing system according to an embodiment of the present invention.
Reference numerals:
10-sealed cabin 11-interface
20-ground 21-sinking type space
30-load platform
40-support pedestal
50-support
60-Flexible sealing device
70-air spring
80-base
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The embodiment of the invention provides a vibration isolation sealing system, which is low in overall gravity center, and meanwhile, a sealing cabin body and an internal load platform are respectively supported through a cabin penetrating type design and are flexibly and hermetically connected at an interface position, so that the vibration isolation effect of the load platform is improved.
Specifically, the vibration isolation sealing system comprises a sealing cabin body, the sealing cabin body is arranged on the ground, the bottom wall of the sealing cabin body is provided with an interface, and a sunken space located on the ground is arranged below the sealing cabin body;
the sealing cabin is characterized by further comprising a load platform arranged inside the sealing cabin and a support pedestal arranged outside the sealing cabin, wherein the support pedestal is located in the sunken space, a support piece at the bottom of the load platform penetrates through the interface to be fixed on the support pedestal, and a flexible sealing device is arranged between the support piece and the interface.
In the above embodiment, the sealed cabin body is placed on the ground, the load platform is placed on the support pedestal through the support member penetrating through the sealed cabin body, and the support pedestal is located in the sunken space on the ground, so that the center of gravity of the whole system is low and the system has good stability; the weight of the whole system is divided into two parts which are respectively borne by the ground and the supporting pedestal, so that the stability is further enhanced; meanwhile, the supporting piece and the interface are connected in a sealing mode through the flexible sealing device, and the flexible sealing device is low in rigidity, so that a large dislocation allowance is formed between the sealing cabin body and the internal load platform, and the vibration isolation effect is improved.
For a clearer understanding of the vibration isolation sealing system provided by the embodiments of the present invention, reference will now be made in detail to the accompanying drawings.
As shown in fig. 1, the vibration isolation sealing system includes a sealed enclosure 10, the sealed enclosure 10 is disposed on the ground 20, and the inside of the sealed enclosure 10 may be in a vacuum state or other state requiring air tightness; the bottom wall of the sealed cabin 10 is provided with an interface 11, the interface 11 allows some accessory equipment to pass through, and a sunken space 21 located on the ground 20 is arranged below the sealed cabin 10 and used for accommodating a bearing device connected with the accessory equipment; the vibration isolation sealing system also comprises a load platform 30 arranged inside the sealed cabin 10 and a support pedestal 40 arranged outside the sealed cabin 10, wherein a support 50 at the bottom of the load platform 30 passes through the interface 11 and is fixed on the support pedestal 40, and the support pedestal 40 is positioned in the sunken space 21, so that the center of gravity of the whole system is lower, and the stability is enhanced; meanwhile, since the support pedestal 40 is only used for supporting the load platform 30 and the support 50, and the sealed cabin 10 is supported by the ground 20, the weight of the whole system is divided into two parts, which are respectively borne by the support pedestal 40 and the ground 20, so that the stability is further enhanced; the supporting pieces 50 correspond to the interfaces one to one, the flexible sealing devices 60 are arranged between the supporting pieces 50 and the interfaces, the flexible sealing devices 60 have good airtightness and low rigidity, large dislocation allowance is formed between the sealed cabin 10 and the internal load platform 30, a path for the vibration on the sealed cabin 10 to propagate to the internal load platform 30 is effectively blocked, and the vibration isolation effect is improved.
The flexible sealing device 60 is provided to allow a horizontal and vertical offset between the sealed cabin 10 and the supporting member 50, and the flexible sealing device 60 has various structures, such as a flat structure as a whole, and is arranged in a radial direction of the supporting member 50, or has a certain length in an axial direction, and is arranged in an axial direction of the supporting member 50. In a specific embodiment, the flexible sealing device 60 is configured in the former form, the flexible sealing device 60 is sleeved on the supporting member 50 and extends towards the interface of the sealed cabin 10 in the radial direction, an inner ring of the flexible sealing device 60 is connected with the supporting member 50 in a sealing manner, and an outer ring of the flexible sealing device 60 is connected with the interface in a sealing manner. Further, the flexible sealing device 60 includes a flexible connecting member, and the flexible connecting member is disposed in a bent manner, and the flexible connecting member has a corrugated structure, so that the flexible connecting member can extend outwards or continue to contract inwards under the action of an external force, so that the sealing cabin 10 has a small influence on the load platform 30 when vibrating; the flexible connecting piece can also have certain elasticity, can extend when receiving external force, further reduces the rigidity of the whole device, and the ductility of the flexible connecting piece is enhanced, and the flexible connecting piece is not easy to break when being stressed.
When pressure difference exists between the inner environment and the outer environment of the sealed cabin body 10, one part of the flexible connecting piece protrudes to the side with lower air pressure to form a full air bag structure, the flexible connecting piece is in a bending state, the form of the flexible connecting piece is changed in the vibration process of the sealed cabin body 10, the volume of the formed air bag structure is correspondingly reduced or expanded, vibration energy is consumed in the process, and the buffering effect is achieved.
During specific connection, a flaring structure (not shown) is arranged at the interface of the sealed cabin body 10, the flexible sealing device 60 is positioned in the flaring structure, and the outer ring of the flexible sealing device 60 is connected with the flaring structure, so that the processing difficulty and the installation difficulty of the interface 11 of the sealed cabin body 10 are reduced. The aperture of the flaring structure is larger than that of the interface 11, the internal space is larger, so that a larger installation space and a larger deformation space are provided for the flexible sealing device 60, a larger dislocation allowance can be allowed for the sealing cabin 10 along the horizontal direction and the vertical direction, when the sealing cabin 10 has pressure difference inside and outside, the flexible connecting part can bulge inwards, and the flaring structure can also provide an accommodating space for the part of the bulged sac-shaped structure. The flaring structure and the sealing cabin body 10 are connected at the interface position in a welding mode, the end part of the flaring structure is provided with a flange plate, correspondingly, the flexible sealing device 60 is internally provided with a flange structure which is matched with each other, the detachable connection mode facilitates the replacement of parts, the overhaul and the maintenance of the system and the like, and a sealing ring can be arranged between the contact surfaces of the flaring structure and the flexible sealing device to enhance the sealing performance of the system.
With continued reference to fig. 1, to enhance the stability of the loading platform 30, the bottom of the support pedestal 40 is provided with a vibration isolation device, and the vibration isolation system can absorb the vibration energy transferred to the support 50 or the vibration energy from the ground, so that the loading platform 30 is kept stable. The vibration isolation device comprises a plurality of groups of air springs 70, the air springs 70 have good flexibility in the horizontal direction and the vertical direction, and vibration in the horizontal direction and vibration in the vertical direction can be inhibited simultaneously. In addition to the air spring 70, other types of damping elements can be used, which are not described here.
The boss is arranged on the support pedestal 40, the cross section of the boss is larger than that of the support 50, the boss is fixedly connected with the support 50, if the boss is welded or connected with the support 50 through a flange, the stress area of the support pedestal 40 can be increased through the boss, so that the structure is more stable, and the boss can be a cylinder, a cube or a circular truncated cone structure. Further, a gravity center adjusting structure (not shown) is arranged at the bottom of the supporting pedestal bottom 40 along the gravity direction, the gravity center adjusting structure extends towards the bottom of the sunken space and is fixedly suspended on the supporting pedestal 40, so that the gravity center of the supporting pedestal 40 and the gravity center adjusting structure is lowered, and the stability of the system is further enhanced. Specifically, the support pedestal 40 and the center of gravity adjusting structure may be integrated into a whole, and the whole is T-shaped.
With continued reference to fig. 1, in order to facilitate the installation and fixation of the sealed cabin 10, a base 80 is provided on the ground 20, the base 80 is fixed on the ground 20, and the sealed cabin 10 is installed on the surface of the base 80.
As can be seen from the above description, in the vibration isolation sealing system provided by the embodiment of the invention, the sealed cabin body falls on the ground, the supporting member at the bottom of the load platform penetrates out of the sealed cabin body and falls on the supporting pedestal, the cabin penetrating structure isolates the vibration of the external sealed cabin body from the internal load platform, the vibration isolation effect is effectively improved, and the supporting pedestal is located in the sunken space below the sealed cabin body, so that the center of gravity of the whole system is lower, and the system has stronger stability; meanwhile, the flexible sealing device between the supporting piece and the sealing cabin body enables a large dislocation allowance to be formed between the internal load platform and the sealing cabin body.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (6)
1. The vibration isolation sealing system is characterized by comprising a sealing cabin body, wherein the sealing cabin body is arranged on the ground, the bottom wall of the sealing cabin body is provided with an interface, and a sunken space positioned on the ground is arranged below the sealing cabin body;
the sealing cabin further comprises a load platform arranged inside the sealing cabin and a support pedestal arranged outside the sealing cabin, wherein the support pedestal is positioned in the sunken space, and the height of the support pedestal is smaller than the depth of the sunken space; a support piece at the bottom of the loading platform penetrates through the interface and is fixed on the support pedestal, and a flexible sealing device is arranged between the support piece and the interface;
the flexible sealing device is sleeved on the supporting piece and extends to the interface along the radial direction;
the inner ring of the flexible sealing device is connected with the supporting piece in a sealing mode, and the outer ring of the flexible sealing device is connected with the interface in a sealing mode;
the flexible sealing device comprises a flexible connecting piece, and the flexible connecting piece is provided with a corrugated structure;
when the internal environment and the external environment of the sealed cabin body have pressure difference, one part of the flexible connecting piece protrudes to the side with lower air pressure to form an air bag.
2. The vibration isolation sealing system according to claim 1, wherein the bottom of said support pedestal is provided with vibration isolation means.
3. The vibration isolation sealing system of claim 2, wherein said vibration isolation means comprises a plurality of sets of air springs.
4. The vibration isolation sealing system of claim 1, wherein said interface location is provided with a flared structure, said flexible sealing means being located within said flared structure.
5. The vibration isolation sealing system according to claim 1, wherein the bottom of said support pedestal is provided with a center of gravity adjusting structure in the direction of gravity, said center of gravity adjusting structure extending toward the bottom of said sunken space and being suspended from said support pedestal.
6. The vibration isolation sealing system according to claim 1, wherein said support pedestal is provided with a boss, and said support member is fixedly connected to said boss.
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CN202010467385.8A CN111609079B (en) | 2020-05-28 | 2020-05-28 | Vibration isolation sealing system |
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CN202010467385.8A CN111609079B (en) | 2020-05-28 | 2020-05-28 | Vibration isolation sealing system |
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CN111609079B true CN111609079B (en) | 2022-07-12 |
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CN113188764A (en) * | 2021-04-16 | 2021-07-30 | 中国科学院西安光学精密机械研究所 | Temperature test box with vibration isolation platform |
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CN111156285A (en) * | 2019-12-13 | 2020-05-15 | 中国中元国际工程有限公司 | Open type sinking air floating platform raised floor overhanging vibration reduction system |
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JP5048165B1 (en) * | 2012-06-11 | 2012-10-17 | 巴工業株式会社 | Rotation processing device seal mechanism |
JP6890968B2 (en) * | 2016-12-26 | 2021-06-18 | キヤノントッキ株式会社 | Pressure vessel |
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JP2002121929A (en) * | 2000-10-13 | 2002-04-26 | Takenaka Komuten Co Ltd | Three-dimensional floating body base isolation method provided with air cushion and floating body base isolation structure |
CN104267756A (en) * | 2014-09-19 | 2015-01-07 | 中国电子工程设计院 | Horizontal overlength precision equipment micro-vibration control system |
CN204590102U (en) * | 2015-04-24 | 2015-08-26 | 中国电子工程设计院 | A kind of high-low temperature chamber dither suppresses project organization |
CN105240452A (en) * | 2015-09-29 | 2016-01-13 | 北京控制工程研究所 | Local bearing type active vibration isolation device capable of being applied to ultrahigh vacuum system |
CN106402261A (en) * | 2016-08-08 | 2017-02-15 | 中国电子工程设计院 | Penetration type micro-vibration air spring vibration isolation system |
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Address after: No. 160, West Fourth Ring North Road, Haidian District, Beijing Patentee after: China Electronics Engineering Design Institute Co.,Ltd. Country or region after: China Address before: No. 160, West Fourth Ring North Road, Haidian District, Beijing Patentee before: CHINA ELECTRONICS ENGINEERING DESIGN INSTITUTE Co.,Ltd. Country or region before: China |