CN220151800U - Multi-degree-of-freedom and large-deformation-resistant metal damping vibration isolation device - Google Patents
Multi-degree-of-freedom and large-deformation-resistant metal damping vibration isolation device Download PDFInfo
- Publication number
- CN220151800U CN220151800U CN202321484690.3U CN202321484690U CN220151800U CN 220151800 U CN220151800 U CN 220151800U CN 202321484690 U CN202321484690 U CN 202321484690U CN 220151800 U CN220151800 U CN 220151800U
- Authority
- CN
- China
- Prior art keywords
- vibration isolation
- base
- vibration
- freedom
- degree
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000002955 isolation Methods 0.000 title claims abstract description 64
- 238000013016 damping Methods 0.000 title claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 24
- 239000002184 metal Substances 0.000 title claims abstract description 24
- 230000008093 supporting effect Effects 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 229920001967 Metal rubber Polymers 0.000 claims description 18
- 230000000694 effects Effects 0.000 abstract description 7
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 8
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910000617 Mangalloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Vibration Prevention Devices (AREA)
Abstract
The utility model relates to a multi-degree-of-freedom and large-deformation-resistant metal damping vibration isolation device which comprises a base, wherein a supporting body is arranged opposite to the base, a plurality of vibration isolation supporting legs are distributed between the supporting body and the base in an annular array mode, the vibration isolation supporting legs incline outwards along the direction from the supporting body to the base, the vibration isolation supporting legs are connected with the supporting body through upper joint ball hinge bearings and are connected with the base through lower joint ball hinge bearings, and a pre-tightening adjusting mechanism is further connected between the supporting body and the base. The vibration isolator can be ensured to be in the optimal working range, the maximum damping effect is provided, and the vibration conduction and the noise level are reduced. The vibration isolation and buffering device is suitable for certain equipment with larger vibration isolation and buffering stroke, and is also suitable for the traditional fields of automobiles, machinery and the like and the fields of equipment with severe working environments such as aerospace, navigation chemical industry and nuclear energy.
Description
Technical Field
The utility model relates to a multi-degree-of-freedom and large-deformation-resistant metal damping vibration isolation device.
Background
When the ship runs, the power equipment on the ship can generate complex vibration phenomenon in the running process. Poor vibration affects normal operation of a ship, affects the service life of internal important equipment, and is very difficult to repair and maintain equipment at sea, so that a ship vibration isolation system is a very important ring in modern ship design, and can ensure smooth sailing of the ship and comfort and safety of personnel. At present, the most used is the traditional rubber vibration isolator in the ship field, but the rubber material can be aged, cracked and invalid under the action of vibration and impact for a long time, so that the vibration isolation effect and the service life of the rubber material are affected, and the rubber material can be affected by temperature in power equipment. Aiming at the problems, in recent years, partial scholars design pure metal vibration isolators, such as steel wire rope vibration isolators, all-metal rubber vibration isolators, metal plate vibration isolators and the like, but marine environments are complex, and a ship can generate larger floating, so that the existing vibration isolators are required to meet the requirements of large deformation and multidirectional vibration isolation, most of the existing pure metal vibration isolators are unidirectional vibration isolators, and when the existing pure metal vibration isolators are impacted by large deformation, the problems of vibration isolation effect loss, vibration isolation element damage, ship stability influence and the like can be possibly caused due to the limitation of the material and structural design of the vibration isolation element.
Problems and defects of the existing vibration isolation device mainly include:
(1) The existing rubber vibration isolator or hydraulic control system and the like are difficult to simultaneously meet the complex environments such as high/low temperature, salt spray corrosion, damp heat, aging resistance and the like, and are mainly determined by vibration isolation component materials, and the reliability of the material performance of the rubber vibration isolator or the hydraulic/pneumatic medium is greatly influenced along with the longer service period under the complex multiple environments.
(2) The existing rubber vibration isolator is easy to damage or destroy in the process of resisting three-dimensional large deformation, and the vibration isolation performance is difficult to recover. In addition, the existing simple inclined spring mechanism or hydraulic system has poor flexibility and adjustability at the connecting part of the vibration isolation device.
(3) Most of the existing multi-degree-of-freedom vibration isolators adopt a connecting mode of a spherical hinge or a universal joint, and the size of pretightening force cannot be controlled, so that the structural stability is poor, and the vibration isolator possibly cannot provide enough damping effect, so that vibration cannot be effectively absorbed and weakened, and the stability and the performance of equipment or the structure are affected.
Disclosure of Invention
In view of the defects in the prior art, the utility model aims to provide a multi-degree-of-freedom and large-deformation-resistant metal damping vibration isolation device.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a multi freedom and anti large deformation metal damping vibration isolator, includes the base, the opposite of base is provided with the supporter, annular array distributes between supporter and the base has a plurality of vibration isolation landing leg, vibration isolation landing leg all inclines outwards along the direction of supporter to the base, and vibration isolation landing leg all is connected with the supporter through last joint ball hinge bearing, all is connected with the base through lower joint ball hinge bearing, still be connected with pretension adjustment mechanism between supporter and the base.
Preferably, the top of the support body is provided with a threaded hole, the threaded hole is used for being connected with a vibration source, a plurality of through holes are distributed on the base in an annular array mode, and the through holes are used for being fixedly connected with the base.
Preferably, the base is provided with inclined screw thread seats at the corner positions of the connecting vibration isolation supporting legs, and the lower joint ball hinge bearings are arranged on the corresponding screw thread seats.
Preferably, the inclined angle of the thread seat is 35.26 degrees.
Preferably, vibration isolation landing leg outside all includes shell and lower shell, lower shell all passes through bolt and lower joint ball hinge bearing fixed connection, lower shell top all passes through bolt and last shell fixed connection, vibration isolation landing leg inside comprises annular metal rubber, first rectangle spring, guide bar, guide block, go up joint ball hinge bearing all and pass through screw thread fixed connection with the guide bar top, annular metal rubber all upper and lower symmetry suit is on the guide bar, the guide block also all upper and lower symmetry suit is on the guide bar, wherein upper and lower two guide blocks all are located the inboard of homoend side annular metal rubber, and all be equipped with the first rectangle spring of suit on the guide bar between upper and lower two guide blocks.
Preferably, the pretension adjustment mechanism comprises an upper spring seat, a second rectangular spring and a lower spring seat, wherein the upper spring seat is in threaded connection with the support body through a screw, the lower spring seat is in threaded connection with the base through a screw, and the upper end and the lower end of the second rectangular spring are respectively arranged in concave cavities on the upper spring seat and the lower spring seat.
Compared with the prior art, the utility model has the following beneficial effects: the utility model adopts the inclined vibration isolation to greatly reduce the overall dimension and the overall weight of the vibration isolator compared with the horizontally arranged springs in structure. The pre-tightening adjustment is arranged between the support body and the base, and the performance of the vibration isolator can be flexibly adjusted according to actual conditions by adjusting the pre-tightening force at any time, so that the vibration isolator is suitable for various vibration environments. Thereby maximizing effective vibration absorption and vibration isolation. In addition, the pretightening force adjustment can help optimize the working state of the vibration isolator, and through accurate pretightening force adjustment, the vibration isolator can be ensured to be in the optimal working range, the maximum damping effect is provided, and the vibration conduction and the noise level are reduced. The vibration isolation and buffering device is suitable for certain equipment with larger vibration isolation and buffering stroke, and is also suitable for the traditional fields of automobiles, machinery and the like and the fields of equipment with severe working environments such as aerospace, navigation chemical industry and nuclear energy.
The utility model will be described in further detail with reference to the drawings and the detailed description.
Drawings
Fig. 1 is a schematic diagram of a construction of an embodiment of the present utility model.
Fig. 2 is a schematic diagram of a second embodiment of the present utility model.
Figure 3 is a cross-sectional view of a vibration isolation leg.
Fig. 4 is a schematic view of the construction of the pretension adjustment mechanism.
In the figure: 1. the vibration isolation support comprises a support body, a vibration isolation supporting leg, an upper spherical hinge bearing, a base, a lower spherical hinge bearing, a pre-tightening adjusting mechanism, an upper shell, a lower shell, a ring-shaped metal rubber, a first rectangular spring, a guide rod, a guide block, a upper spring seat, a second rectangular spring, a lower spring seat, a thread seat, a rotating lug, a screw and a cavity.
Detailed Description
The utility model will be further described with reference to the accompanying drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
As shown in fig. 1-4, this embodiment provides a multi-degree of freedom and anti-large deformation metal damping vibration isolation device, which comprises a base, the opposite of base is provided with the supporter, annular array distributes between supporter and the base has four vibration isolation landing legs, vibration isolation landing legs all incline outwards along the direction of supporter to the base, and vibration isolation landing legs all are connected with the supporter through last joint ball hinge bearing, all are connected with the base through lower joint ball hinge bearing, still be connected with pretension adjustment mechanism between supporter and the base. The vibration reduction structure which is formed by connecting the inclined vibration isolation and the metal wire mesh porous damping element (also called metal rubber) in series and in threaded connection with the multi-degree-of-freedom joint ball hinge bearing structurally solves a series of problems that the three-way large-deformation vibration reduction stroke is difficult to realize, the stability of the three-way vibration reduction rigidity cannot be ensured, and the vibration reduction structure is difficult to serve in extreme environments such as high/low temperature, salt fog, damp heat and the like under the constraint condition of small external dimension of the vibration isolator.
In the embodiment of the utility model, the top of the support body is provided with a threaded hole which is used for being connected with a vibration source, and four through holes are distributed on the base in an annular array and are used for being fixedly connected with the base.
In the embodiment of the utility model, inclined thread seats are respectively arranged at four corner positions of the base, which are connected with the vibration isolation supporting legs, and the lower joint ball hinge bearings are respectively arranged on the corresponding thread seats.
In the embodiment of the utility model, the inclined angles of the thread seats are 35.26 degrees, and the three-way equal stiffness characteristic is ensured by the angles.
In the embodiment of the utility model, the outer part of the vibration isolation supporting leg comprises an upper shell and a lower shell, the lower shell is fixedly connected with a lower spherical hinge bearing through bolts, the top of the lower shell is fixedly connected with the upper shell through bolts, the inner part of the vibration isolation supporting leg is composed of annular metal rubber, a first rectangular spring, a guide rod and guide blocks, the upper spherical hinge bearing is fixedly connected with the top of the guide rod through threads, the annular metal rubber is vertically and symmetrically sleeved on the guide rod, the guide blocks are vertically and symmetrically sleeved on the guide rod, the upper guide block and the lower guide block are both positioned on the inner side of the annular metal rubber at the same end side, and a first rectangular spring sleeved on the guide rod is arranged between the upper guide block and the lower guide block. Whether the vibration isolation legs are in tension or in compression, the first rectangular spring is always in compression and is guaranteed to always have an annular metal rubber to provide damping.
In the embodiment of the utility model, the pre-tightening adjusting mechanism comprises an upper spring seat, a second rectangular spring and a lower spring seat, wherein the upper spring seat is in threaded connection with the supporting body through a screw rod, the lower spring seat is in threaded connection with the base through a screw rod, and the upper end and the lower end of the second rectangular spring are respectively arranged in concave cavities on the upper spring seat and the lower spring seat. The upper spring seat and the lower spring seat are respectively fixedly connected with the corresponding screw rods.
In the embodiment of the utility model, the outer side wall of the lower spring seat is fixedly provided with the rotating lug, so that the lower spring seat and the screw rod thereof can be conveniently rotated, the axial position of the screw rod is changed, the vertical position of the lower spring seat is adjusted, and the compression amount of the second rectangular spring is changed, so that the pretightening force is adjusted.
In the embodiment of the utility model, the vibration reduction structure forms of the inclined rectangular spring and the metal wire mesh porous damping element (also called metal rubber) which are connected in series and in threaded connection with the multi-degree-of-freedom joint ball hinge bearing are structurally adopted, so that the functions of small external dimension, three-way equal rigidity, high damping energy consumption, no matter the vibration isolator bears tension and compression, three-way large displacement vibration reduction stroke and the like are realized. The pre-tightening adjusting mechanism is designed, and the performance of the vibration isolator can be flexibly adjusted according to actual conditions by adjusting the pre-tightening force at any time, so that the vibration isolator is suitable for various vibration environments. Thereby maximizing effective vibration absorption and vibration isolation. In terms of selecting the materials of the vibration isolator parts, the rest parts except the springs are made of stainless steel materials. And the spring is made of high manganese steel metal material, and the surface of the spring is plated with nickel for corrosion prevention treatment. For the spherical hinge bearing, the spherical hinge contact surface adopts a metal wear-resistant coating, so that the dynamic wear resistance of the spherical hinge bearing is improved.
A working method of a multi-degree-of-freedom and large-deformation-resistant metal damping vibration isolation device is carried out according to the following steps:
firstly, four through holes on the base are used for being fixedly connected with the base, and secondly, threaded holes on the supporting body are used for being connected with the vibration source. And finally, rotating the lower spring seat according to vibration isolation environment and rigidity requirements, so as to adjust the rigidity and pretightening force of the vibration isolator.
(1) When the support body moves vertically upwards, the vibration isolation device is in a tension state, the upper joint ball hinge bearing moves, the upper joint ball hinge bearing drives the guide rod in the vibration isolation supporting leg to move, the guide rod compresses annular metal rubber, the annular metal rubber compresses the guide block, and the guide block compresses the first rectangular spring, so that vibration reduction and energy consumption are realized; wherein, due to the limiting action of the upper shell and the lower shell, the guide block can only slide along the inner wall of the shell; the guide rod can only move along the axial direction of the first rectangular spring due to the limitation of the guide block, and the first rectangular spring is always compressed by axial load; the contact surface of the guide block and the inner wall of the shell and the contact surface of the guide block and the guide rod are all made of metal wear-resistant coatings;
(2) When the support body moves vertically downwards, the vibration isolation device is in a pressed state, the upper spherical hinge bearing moves, the annular metal rubber is compressed by the upper spherical hinge bearing, the guide block is compressed by the annular metal rubber, and the first rectangular spring is compressed by the guide block, so that vibration reduction and energy consumption are realized; in addition, due to the effect of the pre-tightening adjusting mechanism, the supporting body also compresses the second rectangular spring, so that a certain supporting effect is provided;
(3) When the support body moves horizontally, one part of springs of the vibration isolation device bear the compression load from the upper spherical hinge bearing, and the other part of springs bear the compression load from the guide rod; the spring of the support body is always pressed when the support body moves in any direction.
The metal vibration isolator is made of metal materials, has higher durability and corrosion resistance, and is suitable for ships under long-term use and severe environmental conditions. The interior has the characteristics of simple structure and easy maintenance, does not need frequent replacement or maintenance, and can reduce the operation cost of the ship.
The utility model adopts the inclined spring to reduce the external dimension and the whole weight of the vibration isolator relatively to the horizontally arranged spring. The vibration isolator adopts a vibration reduction structure form that a rectangular spring is connected with a metal wire mesh porous damping element in series and is in threaded connection with a multi-degree-of-freedom joint ball hinge bearing, so that the vibration isolator realizes three-dimensional large-displacement vibration reduction stroke, large damping energy consumption and equal stiffness vibration reduction under the constraint of smaller external dimension.
According to the utility model, the pre-tightening adjusting mechanism is arranged between the support body and the base, and the pre-tightening force is adjusted at any time, so that the performance of the vibration isolator can be flexibly adjusted according to actual conditions, and the vibration isolator is suitable for various vibration environments. Thereby maximizing effective vibration absorption and vibration isolation. In addition, the pretightening force adjustment can help optimize the working state of the vibration isolator, and through accurate pretightening force adjustment, the vibration isolator can be ensured to be in the optimal working range, the maximum damping effect is provided, and the vibration conduction and the noise level are reduced.
The utility model is not only suitable for some equipment needing larger vibration isolation and buffer stroke reduction, but also suitable for the traditional fields of automobiles, machinery and the like and the fields of equipment with severe working environments such as aerospace, navigation chemical industry, nuclear energy and the like.
The above description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to the equivalent embodiments. However, any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present utility model still fall within the protection scope of the technical solution of the present utility model.
Claims (6)
1. A multi-degree-of-freedom and large-deformation-resistant metal damping vibration isolation device is characterized in that: including the base, the opposite of base is provided with the supporter, annular array distributes between supporter and the base has a plurality of vibration isolation landing leg, vibration isolation landing leg all inclines outwards along the direction of supporter to the base, and vibration isolation landing leg all is connected with the supporter through last joint ball hinge bearing, all is connected with the base through lower joint ball hinge bearing, still be connected with pretension adjustment mechanism between supporter and the base.
2. The multi-degree of freedom and large deformation resistant metal damping vibration isolation device of claim 1, wherein: the top of supporter has offered the screw hole, and this screw hole is used for being connected with the vibration source, annular array distributes on the base has a plurality of through-hole, and this through-hole is used for carrying out fixed connection with the base.
3. The multi-degree of freedom and large deformation resistant metal damping vibration isolation device of claim 1, wherein: the base is provided with inclined thread seats at the corner positions of the connecting vibration isolation supporting legs, and the lower joint ball hinge bearings are arranged on the corresponding thread seats.
4. The multi-degree of freedom and anti-large deformation metal damping vibration isolation device according to claim 3, wherein: the inclined angles of the thread seats are 35.26 degrees.
5. The multi-degree of freedom and large deformation resistant metal damping vibration isolation device of claim 1, wherein: the vibration isolation landing leg is characterized in that the vibration isolation landing leg comprises an upper shell and a lower shell, the lower shell is fixedly connected with a lower spherical hinge bearing through bolts, the top of the lower shell is fixedly connected with the upper shell through bolts, the vibration isolation landing leg is composed of annular metal rubber, a first rectangular spring, a guide rod and guide blocks, the upper spherical hinge bearing is fixedly connected with the top end of the guide rod through threads, the annular metal rubber is sleeved on the guide rod in an up-down symmetrical mode, the guide blocks are sleeved on the guide rod in an up-down symmetrical mode, the upper guide block and the lower guide block are located on the inner side of the annular metal rubber at the same end side, and the first rectangular spring sleeved on the guide rod is arranged between the upper guide block and the lower guide block.
6. The multi-degree of freedom and large deformation resistant metal damping vibration isolation device of claim 1, wherein: the pre-tightening adjusting mechanism comprises an upper spring seat, a second rectangular spring and a lower spring seat, wherein the upper spring seat is in threaded connection with the supporting body through a screw, the lower spring seat is in threaded connection with the base through a screw, and the upper end and the lower end of the second rectangular spring are respectively arranged in concave cavities on the upper spring seat and the lower spring seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321484690.3U CN220151800U (en) | 2023-06-12 | 2023-06-12 | Multi-degree-of-freedom and large-deformation-resistant metal damping vibration isolation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321484690.3U CN220151800U (en) | 2023-06-12 | 2023-06-12 | Multi-degree-of-freedom and large-deformation-resistant metal damping vibration isolation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220151800U true CN220151800U (en) | 2023-12-08 |
Family
ID=89014621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321484690.3U Active CN220151800U (en) | 2023-06-12 | 2023-06-12 | Multi-degree-of-freedom and large-deformation-resistant metal damping vibration isolation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220151800U (en) |
-
2023
- 2023-06-12 CN CN202321484690.3U patent/CN220151800U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107416167B (en) | Boats and ships host computer damping base | |
| CA2868615C (en) | Gearbox supporting means of a wind turbine, wind turbine and method for maintaining a gearbox supporting means | |
| CN101311574B (en) | Composite damping elastic support | |
| CN110056603A (en) | A kind of external mounting type planetary roller screw-rubber composite vibration reducing device | |
| CN109654301B (en) | Three-way variable force vibration reduction support based on metal rubber pipeline and working method | |
| CN203996820U (en) | Marine wind electric field maintenance ship berthing device | |
| CN220151800U (en) | Multi-degree-of-freedom and large-deformation-resistant metal damping vibration isolation device | |
| CN112555324A (en) | Elastic cement buffer based on metal rubber-disc spring and working method thereof | |
| CN116518022A (en) | Multi-degree-of-freedom and large-deformation-resistant metal damping vibration isolation device and working method thereof | |
| CN116988590B (en) | Building vibration reduction support | |
| CN201202759Y (en) | Composite damping elastic support | |
| CN107939136B (en) | Fixed three-way damping device for near-field earthquake | |
| CN217840405U (en) | Three-dimensional composite shock isolation device | |
| CN209705175U (en) | A kind of external mounting type planetary roller screw-rubber composite vibration reducing device | |
| CN113911308A (en) | Raft frame of power cabin raft of ship | |
| CN209142328U (en) | A kind of keel structure of ships and light boats | |
| CN210859678U (en) | Power system bidirectional vibration isolator for high-end loose pulley | |
| CN112179616B (en) | Ship model movement restraint device for hydrodynamic test | |
| CN109850071B (en) | Double-rigidity double-pretightening damping system | |
| CN210596999U (en) | Lifting-free one-way friction pendulum support | |
| CN219888606U (en) | Hydraulic shock-absorbing two-stage buffering device | |
| CN219888506U (en) | Gas hydrostatic bearing with damping | |
| CN201013827Y (en) | Train hydraulic damper | |
| CN219651379U (en) | Multi-rotor aircraft stability augmentation device with low gravity center and low power consumption | |
| CN220789409U (en) | Filled steel ball type high damping shock insulation rubber support |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |