CN203395081U - Adjustable buoyant raft vibration isolation device for ocean platform - Google Patents
Adjustable buoyant raft vibration isolation device for ocean platform Download PDFInfo
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- CN203395081U CN203395081U CN201320420280.2U CN201320420280U CN203395081U CN 203395081 U CN203395081 U CN 203395081U CN 201320420280 U CN201320420280 U CN 201320420280U CN 203395081 U CN203395081 U CN 203395081U
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- buoyant raft
- ocean platform
- raft
- vibration isolator
- isolation device
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- 238000002955 isolation Methods 0.000 title claims abstract description 54
- 230000035939 shock Effects 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 14
- 239000010410 layer Substances 0.000 description 5
- 230000010287 polarization Effects 0.000 description 5
- 239000002356 single layer Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a vibration isolation device, in particular to an adjustable buoyant raft vibration isolation device for an ocean platform. The adjustable buoyant raft vibration isolation device comprises the ocean platform and a buoyant raft. The buoyant raft is connected onto the ocean platform through a buoyant raft vibration isolator. The buoyant raft is provided with a unit vibration isolator. The buoyant raft vibration isolator and the unit vibration isolator are frequency modulation vibration isolators. The adjustable buoyant raft vibration isolation device for the ocean platform provided by the utility model solves the problem that the existing buoyant raft vibration isolation device cannot prevent a resonance phenomenon.
Description
Technical field
The utility model relates to isolation mounting, relates in particular to a kind of adjustable Buoyant Raft Shock-resistant System that is applied to ocean platform.
Background technique
Vibration equipment in ocean platform is used isolation mounting in controlling conventionally, and its type can be divided into: single-layer partiting polarization, double-layer vibration isolating and buoyant raft vibration isolation.
Single-layer partiting polarization is the simplest vibration isolation means, and vibratory equipment is connected to and on ocean platform, is single-layer partiting polarization by vibration isolator.
Double-layer vibration isolating is to develop on the basis of single-layer partiting polarization, vibratory equipment is connected with intermediate mass body by vibration isolator, then intermediate mass body is connected and is double-layer vibration isolating with ocean platform by vibration isolator.Mass data shows that the vibration isolating effect of double-layer vibration isolating is better than single-layer partiting polarization.
A kind of more efficiently vibration isolation means on the basis of double-layer vibration isolating, have been developed again: buoyant raft vibration isolation.Buoyant raft vibration isolation is that many vibratory equipments are installed in same intermediate structure by vibration isolator, then intermediate structure is installed to the isolation mounting on ocean platform by vibration isolator, and intermediate structure wherein is just referred to as buoyant raft.Buoyant raft vibrating isolation system, owing to there being a plurality of equipment actings in conjunction, intercouples between equipment and between equipment and buoyant raft, interacts, and portion of energy has just been offset in vibrating isolation system inside, so buoyant raft vibrating isolation system has more superior vibration isolating effect.
In Chinese Patent Application No., be 2012101293481, within open day, be Augusts 22 in 2012 day, be called in the patent document of " seaborne machinery elastic base buoyant raft vibrating isolation system " and disclose a kind of Buoyant Raft Shock-resistant System.Existing Buoyant Raft Shock-resistant System ubiquity is following not enough: immutable during the eigentone of vibration isolator, can not avoid the generation of resonance phenomenon.
Model utility content
The utility model provides a kind of adjustable Buoyant Raft Shock-resistant System that is applied to ocean platform, has solved the problem that existing Buoyant Raft Shock-resistant System can not avoid resonance phenomenon to produce.
Above technical problem solves by following technical proposal: a kind of adjustable Buoyant Raft Shock-resistant System that is applied to ocean platform, comprise ocean platform and buoyant raft, described buoyant raft is connected in described ocean platform by floating raft vibration isolation device, described buoyant raft is provided with unit vibration isolator, and described floating raft vibration isolation device and described unit vibration isolator are all frequency modulation vibration isolator.During use, unit (being vibration source) is connected on buoyant raft by unit vibration isolator, when the vibration frequency of unit and unit vibration isolator produce resonance, changes the frequency of unit vibration isolator, makes unit vibration isolator not produce resonance with unit.Equally, when buoyant raft and floating raft vibration isolation device generation resonance, change the frequency of floating raft vibration isolation device, make buoyant raft not produce resonance with floating raft vibration isolation device.
As preferably, between described unit vibration isolator and described buoyant raft, be flexibly connected and for sphere coordinates, between described unit vibration isolator and described unit for being flexibly connected and being sphere cooperation.Can disperse the vibration force in all directions, vibration isolating effect is good.
As preferably, the joint of described unit vibration isolator and described buoyant raft is provided with bearing, and the joint of described unit vibration isolator and described unit is provided with bearing.Can make unit vibration isolator to the response of all directions generation of vibration, to improve vibration isolating effect.
The utility model also comprises unit fitting seat, and described unit vibration isolator is connected with unit by described unit fitting seat.Can improve convenience when unit is installed.
As preferably, described buoyant raft comprises shell and is positioned at the shell support of shell.Not only guaranteed buoyant raft structural strength, but also guaranteed the intensity of integrally bending and torsion, alleviated the weight of buoyant raft simultaneously, saved material, allow the design of vibration isolator there is greater flexibility, can improve the vibration isolating effect of buoyant raft.
As preferably, described shell support comprises three laminar substrates that be arranged in parallel and is arranged on the some bearing diagonal plates between substrate, between described substrate and bearing diagonal plate, surround triangle deformation through hole, described shell is provided with air-flow through hole, and described unit vibration isolator and floating raft vibration isolation device are distributed in buoyant raft both sides along substrate distribution arrangement.The energy-absorbing effect of buoyant raft is good.
As preferably, described air-flow through hole is elliptical aperture.When shell is vibrated and causes air-flow through hole repeated deformation, air-flow through hole can not produce cracking phenomena.Can improve the working life of shell.
As preferably, the major axis of described air-flow through hole place ellipse is parallel with described substrate.Can improve the energy-absorbing effect of shell.
As preferably, between described floating raft vibration isolation device and described buoyant raft, be flexibly connected and for sphere coordinates, between described floating raft vibration isolation device and described ocean platform for being flexibly connected and being sphere cooperation.Can disperse the vibration force in all directions, vibration isolating effect is good.
As preferably, described floating raft vibration isolation device and the described unit vibration isolator that shakes staggers.Can reduce unit and be delivered to the wideband vibration on ocean platform.
The utlity model has following advantage: because floating raft vibration isolation device and unit vibration isolator are all frequency modulation vibration isolator, therefore can avoid producing resonance phenomenon by changing the vibration frequency of vibration isolator.
Accompanying drawing explanation
Fig. 1 is stereoscopic mechanism schematic diagram of the present utility model.
Fig. 2 is the split view of buoyant raft.
In figure: spherical connector 52 under spherical connector 51, floating raft vibration isolation device on spherical connector 42, floating raft vibration isolation device 5, floating raft vibration isolation device under spherical connector 41, unit vibration isolator on ocean platform 1, buoyant raft 2, shell 21, shell support 22, air-flow through hole 23, substrate 24, bearing diagonal plate 25, deformation through hole 26, unit fitting seat 3, unit vibration isolator 4, unit vibration isolator.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is further described.
Referring to Fig. 1, a kind of adjustable Buoyant Raft Shock-resistant System that is applied to ocean platform, comprises ocean platform 1, buoyant raft 2 and unit fitting seat 3.
Unit fitting seat 3 is supported on buoyant raft 2 by unit vibration isolator 4.Unit vibration isolator 4 is frequency modulation vibration isolator.The upper end of unit vibration isolator 4 is provided with spherical connector 41 on unit vibration isolator.The upper end of unit vibration isolator 4 is coordinated and is movably connected with unit fitting seat 3 spheres by spherical connector 41 on unit vibration isolator.On unit vibration isolator, between spherical connector 41 and unit fitting seat 3, be provided with bearing.The lower end of unit vibration isolator 4 is provided with spherical connector 42 under unit vibration isolator.The lower end of unit vibration isolator 4 is coordinated and is movably connected with buoyant raft 2 spheres by spherical connector 42 under unit vibration isolator.Under unit vibration isolator, between spherical connector 42 and machine buoyant raft 2, be provided with bearing.
Buoyant raft 2 is supported on ocean platform 1 by floating raft vibration isolation device 5.Floating raft vibration isolation device 5 is frequency modulation vibration isolator.The upper end of floating raft vibration isolation device 5 is provided with spherical connector 51 on floating raft vibration isolation device.The upper end of floating raft vibration isolation device 5 is coordinated and is movably connected with buoyant raft 2 spheres by spherical connector on floating raft vibration isolation device 51.On floating raft vibration isolation device, between spherical connector 51 and buoyant raft 2, be provided with bearing.The lower end of floating raft vibration isolation device 5 is provided with spherical connector 52 under floating raft vibration isolation device.The lower end of floating raft vibration isolation device 5 is coordinated and is movably connected with ocean platform 1 sphere by spherical connector under floating raft vibration isolation device 52.Under floating raft vibration isolation device, between spherical connector 52 and ocean platform 1, be provided with bearing.
Floating raft vibration isolation device 5 and the unit vibration isolator 4 that shakes staggers.
Buoyant raft 2 comprises shell 21 and is positioned at the shell support 22 of shell.
Referring to Fig. 2.In four sides all around of shell 21, be all provided with air-flow through hole 23.Air-flow through hole 23 is elliptical aperture.The long axis substantially horizontal of air-flow through hole 23 place ellipses is extended.Shell support 22 comprises three laminar substrates 24 and some bearing diagonal plates 25.Bearing diagonal plate 25 is between substrate 24.Between substrate 24 and bearing diagonal plate 25, surround triangle deformation through hole 26.
Referring to Fig. 1, during use, unit is arranged on unit fitting seat 3.The vibratory output that the vibration that unit produces is delivered on ocean platform 1 after by the utility model separate absorption can be less.When the vibration frequency of unit and unit vibration isolator 4 produce resonance, change the frequency of unit vibration isolator 4, make unit vibration isolator 4 discord units produce resonance.Equally, when buoyant raft 2 and floating raft vibration isolation device 5 generation resonance, change the frequency of floating raft vibration isolation device 5, make buoyant raft 2 not produce resonance with floating raft vibration isolation device 5.Floating raft vibration isolation device and unit vibration isolator are all existing frequency modulation vibration isolator.
Claims (10)
1. an adjustable Buoyant Raft Shock-resistant System that is applied to ocean platform, comprise ocean platform and buoyant raft, described buoyant raft is connected in described ocean platform by floating raft vibration isolation device, described buoyant raft is provided with unit vibration isolator, it is characterized in that, described floating raft vibration isolation device and described unit vibration isolator are all frequency modulation vibration isolator.
2. the adjustable Buoyant Raft Shock-resistant System that is applied to ocean platform according to claim 1, it is characterized in that, between described unit vibration isolator and described buoyant raft, be flexibly connected and for sphere coordinates, between described unit vibration isolator and described unit for being flexibly connected and being sphere cooperation.
3. the adjustable Buoyant Raft Shock-resistant System that is applied to ocean platform according to claim 2, is characterized in that, the joint of described unit vibration isolator and described buoyant raft is provided with bearing, and the joint of described unit vibration isolator and described unit is provided with bearing.
4. according to the adjustable Buoyant Raft Shock-resistant System that is applied to ocean platform described in claim 1 or 2 or 3, it is characterized in that, also comprise unit fitting seat, described unit vibration isolator is connected with unit by described unit fitting seat.
5. according to the adjustable Buoyant Raft Shock-resistant System that is applied to ocean platform described in claim 1 or 2 or 3, it is characterized in that, described buoyant raft comprises shell and is positioned at the shell support of shell.
6. the adjustable Buoyant Raft Shock-resistant System that is applied to ocean platform according to claim 5, it is characterized in that, described shell support comprises three laminar substrates that be arranged in parallel and is arranged on the some bearing diagonal plates between substrate, between described substrate and bearing diagonal plate, surround triangle deformation through hole, described shell is provided with air-flow through hole, and described unit vibration isolator and floating raft vibration isolation device are distributed in buoyant raft both sides along substrate distribution arrangement.
7. the adjustable Buoyant Raft Shock-resistant System that is applied to ocean platform according to claim 6, is characterized in that, described air-flow through hole is elliptical aperture.
8. the adjustable Buoyant Raft Shock-resistant System that is applied to ocean platform according to claim 7, is characterized in that, the major axis of described air-flow through hole place ellipse is parallel with described substrate.
9. according to the adjustable Buoyant Raft Shock-resistant System that is applied to ocean platform described in claim 1 or 2 or 3, it is characterized in that, between described floating raft vibration isolation device and described buoyant raft, be flexibly connected and for sphere coordinates, between described floating raft vibration isolation device and described ocean platform for being flexibly connected and being sphere cooperation.
10. according to the adjustable Buoyant Raft Shock-resistant System that is applied to ocean platform described in claim 1 or 2 or 3, it is characterized in that, described floating raft vibration isolation device and the described unit vibration isolator that shakes staggers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320420280.2U CN203395081U (en) | 2013-07-16 | 2013-07-16 | Adjustable buoyant raft vibration isolation device for ocean platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320420280.2U CN203395081U (en) | 2013-07-16 | 2013-07-16 | Adjustable buoyant raft vibration isolation device for ocean platform |
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| Publication Number | Publication Date |
|---|---|
| CN203395081U true CN203395081U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320420280.2U Expired - Fee Related CN203395081U (en) | 2013-07-16 | 2013-07-16 | Adjustable buoyant raft vibration isolation device for ocean platform |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526306A (en) * | 2015-11-24 | 2016-04-27 | 沈阳航空航天大学 | Wide-band flexible floating raft vibration isolation system and design method thereof |
| CN109458430A (en) * | 2018-11-27 | 2019-03-12 | 中国舰船研究设计中心 | Based on quality, tuning, mixes and cut down vibrating isolation system optimum design method to the floating of effect |
| CN109695657A (en) * | 2019-01-18 | 2019-04-30 | 大连理工大学 | A kind of topological optimization buoyant raft raft structure |
-
2013
- 2013-07-16 CN CN201320420280.2U patent/CN203395081U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526306A (en) * | 2015-11-24 | 2016-04-27 | 沈阳航空航天大学 | Wide-band flexible floating raft vibration isolation system and design method thereof |
| CN105526306B (en) * | 2015-11-24 | 2019-02-01 | 沈阳航空航天大学 | A kind of broadband flexibility buoyant raft shock-resistant system and its design method |
| CN109458430A (en) * | 2018-11-27 | 2019-03-12 | 中国舰船研究设计中心 | Based on quality, tuning, mixes and cut down vibrating isolation system optimum design method to the floating of effect |
| CN109695657A (en) * | 2019-01-18 | 2019-04-30 | 大连理工大学 | A kind of topological optimization buoyant raft raft structure |
| CN109695657B (en) * | 2019-01-18 | 2024-01-02 | 大连理工大学 | Topological optimization buoyant raft body structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20140716 |
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| EXPY | Termination of patent right or utility model |