CN116857313B - Damping-adjustable vibration-damping energy-consuming mechanism - Google Patents
Damping-adjustable vibration-damping energy-consuming mechanism Download PDFInfo
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- CN116857313B CN116857313B CN202311121015.9A CN202311121015A CN116857313B CN 116857313 B CN116857313 B CN 116857313B CN 202311121015 A CN202311121015 A CN 202311121015A CN 116857313 B CN116857313 B CN 116857313B
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- end cover
- damping
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- hole
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- 238000013016 damping Methods 0.000 title claims abstract description 92
- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000005265 energy consumption Methods 0.000 claims abstract description 11
- 230000009467 reduction Effects 0.000 claims abstract description 7
- 230000033001 locomotion Effects 0.000 claims abstract description 5
- 210000000078 claw Anatomy 0.000 claims description 10
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 2
- 230000001629 suppression Effects 0.000 abstract description 4
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
-
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/38—Covers for protection or appearance
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to the technical field of vibration suppression of precise structures, in particular to a damping energy consumption mechanism capable of adjusting damping, which comprises a damping cavity filled with damping liquid, an internal pressure adjusting structure for controlling the damping size and an external end cover structure for transmitting external vibration; the internal pressure adjusting structure surrounds the outer side of the damping cavity, and a screw in the internal pressure adjusting structure is rotated to drive the damping cavity to do stretching and compressing motions, so that the pressure intensity in the damping cavity is changed, and damping adjustment is realized; the outer end cover structure surrounds the outer side of the inner pressure adjusting structure and is in contact with the inner pressure adjusting structure, and when the outer end cover structure is subjected to external vibration, damping liquid in the damping cavity is driven to flow, so that energy consumption and vibration reduction are realized.
Description
Technical Field
The invention relates to the technical field of vibration suppression of precise structures, in particular to a damping-adjustable vibration-damping energy-consuming mechanism.
Background
At present, the vibration suppression of a target in a specific environment is a key for ensuring that the target can work normally in rated time, and along with the improvement of the imaging quality requirement of a space telescope, the caliber and the volume of the space telescope are larger and larger, and the requirement on stability is also higher and higher. Micro-vibrations generated by various moving mechanisms on the telescope also become a factor that greatly affects stability. Such micro-vibrations are generally characterized by low vibration amplitude and broad frequency distribution. In order to restrain the influence of broadband noise on the structural directional stability and precision, a liquid damper capable of fast and adjustable damping to micro-vibration response needs to be designed. This is also an important part of the general suppression technique of micro-vibration of spatial telescopes.
Disclosure of Invention
The invention aims to solve the problems and provide a damping energy consumption mechanism with adjustable damping, external vibration can drive the external end cover structure and the internal pressure adjusting structure to move relatively through the transmission of the external end cover structure, damping liquid can flow in a damping cavity, and energy is consumed. The damping value of the vibration reduction mechanism is adjusted by changing the internal pressure of the damping cavity, so that the control effect on vibration is improved.
The damping-adjustable vibration attenuation energy consumption mechanism comprises a damping cavity filled with damping liquid, an internal pressure adjusting structure for controlling the damping size and an external end cover structure for transmitting external vibration; the internal pressure adjusting structure surrounds the outer side of the damping cavity and contacts with the damping cavity, so that the internal pressure of the damping cavity is adjusted, and the damping size is adjusted; the outer end cover structure surrounds the outer side of the inner pressure regulating structure; when the external end cover structure is subjected to external vibration, damping liquid in the damping cavity is driven to flow, so that energy consumption vibration reduction is realized.
Further, the damping cavity comprises an upper cavity, a lower cavity and a flange plate, and the upper cavity and the lower cavity are respectively welded on two sides of the flange plate; the upper cavity and the lower cavity comprise quick-change connectors, corrugated connecting end covers, corrugated pipes and connecting plates; the tail end of the quick-change connector is fixed at the position of the through hole on the corrugated connecting end cover through threads; one end of the corrugated pipe is fixed on the corrugated connecting end cover through welding, and the other end of the corrugated pipe is fixed with the connecting plate through welding, so that the through hole of the corrugated connecting end cover and the inside of the corrugated pipe are communicated with the through hole of the connecting plate; the flange plate is of a disc structure, at least two claw structures are arranged on the circumference of the disc structure, and a damping hole is formed in the center of the flange plate; the connecting plates of the upper cavity and the lower cavity are respectively welded on two sides of the flange plate, and the damping holes are communicated with the interiors of the upper cavity and the lower cavity, so that damping liquid flows in from one quick-change connector and flows out from the other quick-change connector.
Further, six weight-reducing through holes are uniformly formed on the disk surface of the flange plate around the damping holes and used for reducing the weight of the flange plate.
Further, the internal pressure adjusting structure comprises an upper flange end cover, a lower flange end cover and a screw; the inner bottom surface of the upper flange end cover is tightly contacted with the corrugated connecting end cover of the upper cavity, and the cover opening of the upper flange end cover is fixedly connected with the cover opening of the lower flange end cover through bolts; a threaded hole is formed in the bottom of the lower flange end cover, the screw rod is in threaded connection with the threaded hole, the tail end of the screw rod is in contact with the corrugated connection end cover of the lower cavity, and when the screw rod is rotated, the tail end of the screw rod pushes the corrugated connection end cover of the lower cavity, so that the compression degree of the damping cavity is controlled.
Further, the cover opening of the upper flange end cover is fixedly connected with the cover opening of the lower flange end cover through bolts.
Further, the side wall of the lower flange end cover is provided with a waist hole, a positioning threaded hole is formed in the position, corresponding to the waist hole, of the corrugated connection end cover of the lower cavity, a positioning screw is screwed into the waist hole and the positioning threaded hole, the movable range of the corrugated connection end cover is limited, after the screw is screwed to the tail end of the screw to be in contact with the corrugated connection end cover of the lower cavity and internal pressure adjustment is completed, the positioning screw is screwed down, and the lower flange end cover is fixedly connected with the corrugated connection end cover of the lower cavity, so that circumferential and axial positioning is realized.
Further, the outer end cover structure comprises an upper end cover and a lower end cover, wherein the upper end cover is fixedly connected with the claw structure of the flange plate through screws, the lower end cover is fixedly connected with the lower flange cover through screws, and connecting holes connected with external devices are formed in the upper end cover and the lower end cover.
Further, a certain gap is reserved between the upper end cover and the upper flange end cover, and when the outer end cover structure receives external vibration, the outer end cover structure and the inner pressure adjusting structure relatively move in the gap.
Further, the upper flange end cover is provided with a slotted hole, so that the claw structure of the flange plate penetrates through the slotted hole to be connected with the screw of the upper end cover.
Compared with the prior art, the invention has the following beneficial effects:
1) The internal pressure adjusting structure is arranged, the corrugated pipe and damping liquid in the screw compression cavity are rotated, the compression degree of the two closed cavities is controlled, the pressure in the damping cavity is further controlled, the adjustment of the damping value is realized, the damping of different sizes can be adjusted according to different use requirements, and the application range is enlarged;
2) The damping cavity is sealed, so that the possibility of air intake of the vibration reduction energy dissipation mechanism during working is eliminated, and the influence of air on the damping value of the vibration reduction energy dissipation mechanism is reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a damping-adjustable vibration attenuation and dissipation mechanism provided in accordance with an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a damping cavity provided in accordance with an embodiment of the present invention;
FIG. 3 is an isometric view of a damping-adjustable shock dissipating mechanism provided in accordance with an embodiment of the present invention;
fig. 4 is a top view and a cross-sectional view of a flange provided in accordance with an embodiment of the present invention.
Reference numerals: quick-change joint 11, ripple connection apron 12, bellows 13, connecting plate 14, ring flange 15, damping hole 151, subtract heavy through-hole 152, claw structure 153, upper flange end cover 21, lower flange end cover 22, screw 23, upper end cover 31, lower end cover 32, connecting hole 33.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limiting the invention.
According to the damping-adjustable vibration-damping energy-consuming mechanism provided by the invention, the external end cover transmits the received vibration to the damping cavity to drive the damping liquid to flow in the damping cavity, so that vibration damping and energy consumption are realized. The screw rod in the internal pressure adjusting mechanism is rotated to compress the corrugated pipe and damping liquid in the damping cavity, so that the control of the pressure in the damping cavity is completed, and the adjustment of the damping value of the damping mechanism is realized.
Fig. 1 shows the overall structure of a damping-adjustable vibration attenuation energy dissipation mechanism provided by an embodiment of the present invention.
As shown in fig. 1, the damping-adjustable vibration attenuation energy dissipation mechanism provided by the embodiment of the invention comprises a damping cavity, an internal pressure adjusting structure and an external end cover. The internal pressure regulating structure surrounds the outer side of the damping cavity and is in contact with the damping cavity; the outer end cap structure surrounds the outside of the internal pressure regulating structure.
Fig. 2 shows a cross-sectional structure of a damping cavity provided by an embodiment of the present invention.
As shown in fig. 1 and 2, the damping cavity includes an upper cavity, a lower cavity and a flange 15, and the upper cavity and the lower cavity are welded to two sides of the flange 15 respectively. Wherein, the upper cavity and the lower cavity all comprise quick-change joints 11, corrugated connection end covers 12, corrugated pipes 13 and connecting plates 14. The tail end of the quick-change connector 11 is fixed at the position of the through hole on the corrugated connecting end cover 12 through threads; one end of the corrugated pipe 13 is fixed on the corrugated connecting end cover 12 through welding, and the other end of the corrugated pipe 13 is fixed with the connecting plate 14 through welding, so that the through hole of the corrugated connecting end cover 12 and the inside of the corrugated pipe 13 are communicated with the through hole of the connecting plate 14.
The connecting plates 14 of the upper cavity and the lower cavity are respectively welded on two sides of the flange 15, and the damping holes 151 are communicated with the interiors of the upper cavity and the lower cavity, so that damping liquid flows in from one quick-change connector 11 and flows out from the other quick-change connector 11.
Fig. 3 shows an external structure of a damping-adjustable vibration attenuation energy dissipation mechanism provided according to an embodiment of the present invention.
As shown in fig. 1 and 3, the internal pressure adjusting structure includes an upper flange cover 21, a lower flange cover 22, and a screw 23. Wherein, the inner bottom surface of upper flange end cover 21 is closely contacted with the ripple connecting end cover 12 of the upper cavity, and the lid mouth of upper flange end cover 21 is connected and fixed with the lid mouth of lower flange end cover 22 through bolts. A threaded hole is formed in the bottom of the lower flange end cover 22, a screw rod 23 is in threaded connection with the threaded hole, the tail end of the screw rod 23 is in contact with the corrugated connection end cover 12 of the lower cavity, and when the screw rod 23 is rotated, the tail end of the screw rod 23 pushes the corrugated connection end cover 12 of the lower cavity, so that the compression degree of the damping cavity is controlled.
The side wall of the lower flange end cover 22 is provided with a waist hole, and the position of the corrugated connecting end cover 12 of the lower cavity corresponding to the waist hole is provided with a positioning threaded hole.
The outer cap structure includes an upper cap 31 and a lower cap 32, the upper cap 31 is fixedly connected with the claw structure 153 of the flange 15 by a screw, the lower cap 32 is fixedly connected with the lower flange cap 22 by a screw, and the upper cap 31 and the lower cap 32 are provided with connection holes 33 connected with external devices.
Wherein, a certain gap is left between the upper end cover 31 and the upper flange end cover 21, when the external end cover structure receives external vibration, the external end cover structure and the internal pressure adjusting structure are made to move relatively in the gap; the upper flange cover 22 is provided with a slot through which the claw structure 153 of the flange 15 passes to connect with the upper cover 31.
Fig. 4 shows a top view structure and a cross-sectional structure of a flange provided according to an embodiment of the present invention.
As shown in fig. 4, the flange 15 has a disc structure, and at least two claw structures 153 are provided on the circumference of the disc structure; a damping hole 151 is formed in the center of the flange 15, and six weight-reducing through holes 152 are uniformly formed around the damping hole 151 to reduce the weight of the flange.
When the damping value is adjusted, the positioning screw is screwed into the waist hole and the positioning threaded hole to limit the movable range of the corrugated connecting end cover 12, and the screw 23 is rotated until the tail end of the screw 23 contacts with the corrugated connecting end cover 12 of the lower cavity, then the screw 23 is continuously rotated, so that the tail end of the screw 23 pushes the corrugated connecting end cover 12 of the lower cavity, and further the corrugated pipe 13 and damping liquid in the damping cavity are compressed, so that the adjustment of the damping value is realized. After the damping valve is adjusted to the required damping size, the positioning screw is screwed down, so that the lower flange end cover 22 is fixedly connected with the corrugated connection end cover 12 of the lower cavity, the circumferential and axial positioning is realized, and the adjustment of the damping value is completed at the moment.
When the external end cover structure receives external vibration, the external end cover structure drives the flange plate 15 to vibrate, so that the external end cover, the damping cavity and the internal pressure adjusting structure perform relative movement, damping liquid flows in the damping cavity, and vibration reduction and energy consumption are realized.
The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.
Claims (6)
1. The damping energy dissipation mechanism is characterized by comprising a damping cavity filled with damping liquid, an internal pressure adjusting structure for controlling the damping size and an external end cover structure for transmitting external vibration; the internal pressure adjusting structure surrounds the outer side of the damping cavity and contacts with the damping cavity, so that the internal pressure of the damping cavity is adjusted, and the damping size is adjusted; the outer end cover structure surrounds the outer side of the internal pressure regulating structure; when the external end cover structure is subjected to external vibration, the external end cover and the internal pressure adjusting structure perform relative movement to drive damping liquid in the damping cavity to flow, so that energy consumption vibration reduction is realized;
the damping cavity comprises an upper cavity, a lower cavity and a flange plate, and the upper cavity and the lower cavity are respectively welded on two sides of the flange plate; wherein,
the upper cavity and the lower cavity comprise quick-change connectors, corrugated connecting end covers, corrugated pipes and connecting plates; the tail end of the quick-change connector is fixed at the position of the through hole on the corrugated connecting end cover through threads; one end of the corrugated pipe is fixed on the corrugated connection end cover through welding, and the other end of the corrugated pipe is fixed with the connecting plate through welding, so that the through hole of the corrugated connection end cover, the inside of the corrugated pipe and the through hole of the connecting plate are communicated;
the flange plate is of a disc structure, at least two claw structures are arranged on the circumference of the disc structure, and a damping hole is formed in the center of the flange plate;
the connecting plates of the upper cavity and the lower cavity are respectively welded on two sides of the flange plate, and the damping holes are communicated with the interiors of the upper cavity and the lower cavity, so that damping liquid flows in from one quick-change connector and flows out from the other quick-change connector;
the internal pressure adjusting structure comprises an upper flange end cover, a lower flange end cover and a screw; wherein,
the inner bottom surface of the upper flange end cover is tightly contacted with the corrugated connecting end cover of the upper cavity, and the cover opening of the upper flange end cover is fixedly connected with the cover opening of the lower flange end cover through bolts; a threaded hole is formed in the bottom of the lower flange end cover, the screw rod is in threaded connection with the threaded hole, the tail end of the screw rod is in contact with the corrugated connection end cover of the lower cavity, and when the screw rod is rotated, the tail end of the screw rod pushes the corrugated connection end cover of the lower cavity, so that the compression degree of the damping cavity is controlled;
the side wall of lower flange end cover is equipped with the waist hole the ripple of lower cavity connects the end cover and corresponds the position of waist hole is equipped with the locating screw hole, with set screw precess the waist hole with in the locating screw hole, right the range of motion of ripple connection end cover is restricted, works as the screw rod is rotated to the end with the ripple of lower cavity connects the end cover contact and accomplish interior pressure adjustment back, will again set screw screws up, makes the lower flange end cover with the ripple of lower cavity connects the end cover and connects fixedly, realizes circumference and axial positioning.
2. The damping-adjustable vibration attenuation and energy consumption mechanism according to claim 1, wherein six weight-reducing through holes are uniformly formed on the disk surface of the flange plate around the damping hole for reducing the weight of the flange plate.
3. The damping-adjustable vibration attenuation and energy consumption mechanism according to claim 1, wherein the cover opening of the upper flange end cover is fixedly connected with the cover opening of the lower flange end cover through bolts.
4. The damping-adjustable vibration attenuation and energy consumption mechanism according to claim 1, wherein the outer end cover structure comprises an upper end cover and a lower end cover, the upper end cover is fixed with the claw structure of the flange plate through screw threads, the lower end cover is connected and fixed with the lower flange end cover through screw threads, and a connecting hole connected with an external device is formed in the upper end cover and the lower end cover.
5. The adjustable damping vibration attenuation and energy dissipation mechanism according to claim 4, wherein said upper end cap and said upper flange end cap define a gap therebetween, and wherein said outer end cap structure and said internal pressure adjustment structure undergo relative movement within said gap when said outer end cap structure receives external vibrations.
6. The adjustable damping vibration attenuation and energy dissipation mechanism according to claim 4, wherein said upper flange end cap is provided with slots through which the claw structure of said flange plate is connected to said upper end cap screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311121015.9A CN116857313B (en) | 2023-09-01 | 2023-09-01 | Damping-adjustable vibration-damping energy-consuming mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311121015.9A CN116857313B (en) | 2023-09-01 | 2023-09-01 | Damping-adjustable vibration-damping energy-consuming mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116857313A CN116857313A (en) | 2023-10-10 |
| CN116857313B true CN116857313B (en) | 2023-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311121015.9A Active CN116857313B (en) | 2023-09-01 | 2023-09-01 | Damping-adjustable vibration-damping energy-consuming mechanism |
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| CN (1) | CN116857313B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB598880A (en) * | 1945-09-21 | 1948-02-27 | Fairey Aviat Co Ltd | Improvements in or relating to aircraft sustaining rotors |
| CN1786510A (en) * | 2004-12-11 | 2006-06-14 | 尹学军 | Damper |
| EP2003366A2 (en) * | 2007-06-13 | 2008-12-17 | ZF Friedrichshafen AG | Vibration damper with adjustable damping valve |
| CN105485239A (en) * | 2015-12-14 | 2016-04-13 | 陈鸽 | Vibration damping device and disconnector |
| CN107143601A (en) * | 2017-06-01 | 2017-09-08 | 中国科学院长春光学精密机械与物理研究所 | A kind of liquid condenser |
| CN208221228U (en) * | 2018-05-22 | 2018-12-11 | 贵州大学 | A kind of numerical control adjustable hydraulic orifice valve |
| CN109236936A (en) * | 2018-11-11 | 2019-01-18 | 华东交通大学 | A kind of MR damper being sealed using elastic metallic bellows |
| JP2019056223A (en) * | 2017-09-20 | 2019-04-11 | 株式会社共栄金物製作所 | Roll screen device |
| CN217977167U (en) * | 2022-05-09 | 2022-12-06 | 江苏斯贝英金属制品有限公司 | Bidirectional damping shock absorber |
| CN219120077U (en) * | 2022-07-11 | 2023-06-02 | 北京太阳宫燃气热电有限公司 | High temperature resistant expansion joint |
| CN116464730A (en) * | 2023-04-13 | 2023-07-21 | 四川凌峰航空液压机械有限公司 | Closed rotary swing vane throttle hole type heat balance hydraulic damper |
-
2023
- 2023-09-01 CN CN202311121015.9A patent/CN116857313B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB598880A (en) * | 1945-09-21 | 1948-02-27 | Fairey Aviat Co Ltd | Improvements in or relating to aircraft sustaining rotors |
| CN1786510A (en) * | 2004-12-11 | 2006-06-14 | 尹学军 | Damper |
| EP2003366A2 (en) * | 2007-06-13 | 2008-12-17 | ZF Friedrichshafen AG | Vibration damper with adjustable damping valve |
| CN105485239A (en) * | 2015-12-14 | 2016-04-13 | 陈鸽 | Vibration damping device and disconnector |
| CN107143601A (en) * | 2017-06-01 | 2017-09-08 | 中国科学院长春光学精密机械与物理研究所 | A kind of liquid condenser |
| JP2019056223A (en) * | 2017-09-20 | 2019-04-11 | 株式会社共栄金物製作所 | Roll screen device |
| CN208221228U (en) * | 2018-05-22 | 2018-12-11 | 贵州大学 | A kind of numerical control adjustable hydraulic orifice valve |
| CN109236936A (en) * | 2018-11-11 | 2019-01-18 | 华东交通大学 | A kind of MR damper being sealed using elastic metallic bellows |
| CN217977167U (en) * | 2022-05-09 | 2022-12-06 | 江苏斯贝英金属制品有限公司 | Bidirectional damping shock absorber |
| CN219120077U (en) * | 2022-07-11 | 2023-06-02 | 北京太阳宫燃气热电有限公司 | High temperature resistant expansion joint |
| CN116464730A (en) * | 2023-04-13 | 2023-07-21 | 四川凌峰航空液压机械有限公司 | Closed rotary swing vane throttle hole type heat balance hydraulic damper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116857313A (en) | 2023-10-10 |
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