CN103267084B - Three-dimensional frame type buoyant raft vibration isolation device - Google Patents
Three-dimensional frame type buoyant raft vibration isolation device Download PDFInfo
- Publication number
- CN103267084B CN103267084B CN201310216764.XA CN201310216764A CN103267084B CN 103267084 B CN103267084 B CN 103267084B CN 201310216764 A CN201310216764 A CN 201310216764A CN 103267084 B CN103267084 B CN 103267084B
- Authority
- CN
- China
- Prior art keywords
- main beam
- girder
- vibration isolation
- isolation device
- frame type
- 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
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a three-dimensional frame type buoyant raft vibration isolation device. The three-dimensional frame type buoyant raft vibration isolation device comprises a frame type main beam structure. According to the three-dimensional frame type buoyant raft vibration isolation device, a secondary beam is installed inside each frame in an inclined mode, the main beam structure comprises a first main beam part and a second main beam part which are connected into a whole, the first main beam part and the second main beam part are both of inverted-trapezoid structures, the first main beam part is higher than the second main beam part, a first horizontal type water pump, a second horizontal type water pump, a third horizontal type water pump, a vertical type water pump, a first reduction gearbox and a second reduction gearbox are installed in a frame structure formed by the first main beam part and the second main beam part, the top of the first main beam part and the top of the second main beam part are respectively provided with a first acoustic shield, second acoustic shields are installed on the periphery of the main beam structure, and a muffler and ventilation device is further installed on the top of each first acoustic shield, the whole structure is installed inside a shell body, bases are installed on the inner wall surfaces of the shell body, and two sides of the main beam structure are installed on the bases through vibration isolators. The three-dimensional frame type buoyant raft vibration isolation device has the advantages of being good in vibration isolation effect.
Description
Technical field
The present invention relates to a kind of isolation mounting, especially a kind of three-dimensional frame type buoyant raft vibration isolation device, control for ship equipment and other similar field vibration isolation control.
Background technique
Usually use vibration isolation measure in ship equipment vibration control, can be divided into by its type: single-layer partiting polarization, double-layer vibration isolating and buoyant raft vibration isolation.Single-layer partiting polarization is the simplest vibration isolation means, is connected in structure by vibratory equipment is single-layer partiting polarization by vibration isolator.Double-layer vibration isolating develops on the basis of single-layer partiting polarization, is connected by vibratory equipment by vibration isolator with intermediate mass, then to be connected with structure by vibration isolator by intermediate mass and to be double-layer vibration isolating.Large quantity research shows that the anti-vibration performance of double-layer vibration isolating is better than single-layer partiting polarization.
The basis of double-layer vibration isolating is developed again a kind of more efficiently vibration isolation means: buoyant raft vibration isolation.Buoyant Raft Shock-resistant System is that multi-shaker vibration equipment is installed in same intermediate structure by vibration isolator, then intermediate structure is connected to the isolation mounting that pedestal structure is formed by vibration isolator.Here so-called intermediate structure just can be referred to as raft body.Buoyant Raft Shock-resistant System applies multiple devices and encourages the effect of cancelling out each other, and therefore its vibration isolating effect is more superior compared with double-layer vibration isolating.
At present, what generally adopt in the design of raft body is flat-rack raft structure.Strong adaptability installed by flat-rack raft frame, but its anti-torsion performance is general more weak, limits the low frequency vibration isolation performance of raft frame largely.Also there is following shortcoming:
(1) adopt single plane flat placed type to arrange, take up room large.
(2) it builds comparatively complicated, in the boats and ships vibrating isolation system application of reality, there is certain difficulty.
(3) without sound arrester, because the equipment that raft frame is installed also can produce larger running noise except producing vibration, there is larger impact for the live and work of ship's staff in this noise.In addition, running noise can encourage boats and ships bulkhead to produce acoustically-driven vibration.
Summary of the invention
The applicant, for taking up room in above-mentioned existing production technology greatly, installing the shortcomings such as airplane crash, provides a kind of three-dimensional frame type buoyant raft vibration isolation device rational in infrastructure, thus improves anti-vibration performance.
The technical solution adopted in the present invention is as follows:
A kind of three-dimensional frame type buoyant raft vibration isolation device, comprise into the main beam structure of frame type, each framework of described main beam structure is tilted is provided with auxiliary girder, described main beam structure comprises the first girder part and the second girder part that link into an integrated entity, described first girder part all becomes inverted trapezoidal structure with the second girder part, and the height of described first girder part is higher than the height of the second girder part; The frame structure being positioned at the first girder part and the second girder part is separately installed with the first horizontal pump, the second horizontal pump, the 3rd horizontal pump, vertical water pump, the first reduction gear box and the second reduction gear box; The top being positioned at the first girder part and the second girder part is separately installed with the first acoustic hood, and the surrounding being positioned at main beam structure is provided with the second acoustic hood; The top being positioned at the first acoustic hood is also provided with noise elimination ventilation plant; Above-mentioned overall structure is installed in housing, and the internal face of described housing is respectively arranged with pedestal, and the both sides of described main beam structure are installed on pedestal by vibration isolator.
Further improvement as technique scheme:
Described main beam structure is formed by single Main Girder Welding, and described auxiliary girder is welded on main beam structure;
Described first acoustic hood is detachable acoustic hood;
The mounting structure of described first acoustic hood is: described main beam structure is provided with scaffold, and groove type structure is put up in described installation, installs sound insulation rubber layer in groove, and the top of described sound insulation rubber layer is also positioned at described scaffold installation the first acoustic hood;
Described second acoustic hood is embedded acoustic hood;
The mounting structure of described second acoustic hood is: described second acoustic hood is the plate construction with thickness, and it comprises outer sheet metal, damping layer, sound-absorbing material, support keel, membrane waterproofing, dust-proof glass and aluminum sound absorption protective panel; Described second acoustic hood snaps in the frame structure of the first girder part and the second girder part surrounding, and is welded and fixed;
The structure of described noise elimination ventilation plant is: comprise sound-insulation wall, described sound-insulation wall becomes maze-type structure, evenly spacedly on the internal face being positioned at sound-insulation wall be provided with wedge-like body noise elimination block, the bottom being positioned at sound-insulation wall is provided with exhaust outlet, and the side, top being positioned at sound-insulation wall is provided with intake grill;
The cross section of single girder and auxiliary girder is square tube;
The square tube of described single girder adopts 100mm × 100mm × 6mm, and the square tube of described auxiliary girder adopts 80mm × 80mm × 5mm;
Described first horizontal pump, the second horizontal pump, the 3rd horizontal pump, vertical water pump, the first reduction gear box and the second reduction gear box are installed in the frame structure of the first girder part and the second girder part respectively by vibration isolator.
Beneficial effect of the present invention is as follows:
First, the first natural frequency (being generally overall torsional frequency) of the flat raft frame that space framework torsion frequency ratio is traditional is high, higher posture raft frame presentation space stereogenic, its overall resistance against torsion is better, and this just makes the first natural frequency of space frame formula raft frame (being generally whole first natural frequency makes space frame formula raft frame have better anti-vibration performance).Secondly, space frame formula raft frame have employed acoustic isolater and carrys out shielding device running noise, and the vibration making running noise encourage boats and ships bulkhead to produce greatly reduces.Again, space frame formula raft frame can improve its vibration isolating effect further by filling vibration damping particle, viscosity vibration-damping colloid in square tube inside and lay the means such as viscous damping material at square tube outer surface.
Also traditional flat raft frame is generally better than in boats and ships space utilization and apparatus arrangement rate (when namely permitting in raft frame intensity, the device body accumulated amount that each raft frame can be arranged).Traditional flat raft frame is plane, and apparatus arrangement is on the surface of raft frame, and space multistory multilayer shape put up by space frame formula raft, and equipment presentation space solid is arranged, also improves the apparatus arrangement rate of raft frame while efficiently utilizing boats and ships inner space.
Accompanying drawing explanation
Fig. 1 is the structural representation of space frame formula raft frame of the present invention.
Fig. 2 is the structural representation of main beam structure of the present invention.
Fig. 3 is the equipment scheme of installation of space frame formula buoyant raft raft frame of the present invention.
Fig. 4 is the space frame formula raft frame schematic diagram after the present invention adds acoustic hood.
Fig. 5 is the right elevation of Fig. 4.
Fig. 6 is the partial enlarged drawing in A portion in Fig. 5.
Fig. 7 is the scheme of installation of the present invention in the section of cabin.
Fig. 8 is that the present invention eliminates the noise the structural representation of ventilation plant.
Wherein: 1, main beam structure; 2, auxiliary girder; 3, the first girder part; 4, the second girder part; 5, the second horizontal pump; 6, the first horizontal pump; 7, vertical water pump; 8, the first reduction gear box; 9, the second reduction gear box; 10, the 3rd horizontal pump; 11, noise elimination ventilation plant; 12, the first acoustic hood; 13, the second acoustic hood; 14, insulate against sound rubber layer; 15, scaffold; 16, sound-insulation wall; 17, wedge-like body noise elimination block; 18, exhaust outlet; 19, intake grill; 20, housing; 21, vibration isolator; 22, pedestal.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the three-dimensional frame type buoyant raft vibration isolation device of the present embodiment, comprise into the main beam structure 1 of frame type, each framework of main beam structure 1 is tilted is provided with auxiliary girder 2, main beam structure 1 comprises the first girder part 3 and the second girder part 4 linked into an integrated entity, first girder part 3 all becomes inverted trapezoidal structure with the second girder part 4, and the height of the first girder part 3 is higher than the height of the second girder part 4; The frame structure being positioned at the first girder part 3 and the second girder part 4 is separately installed with the first horizontal pump 6, second horizontal pump 5, the 3rd horizontal pump 10, vertical water pump 7, first reduction gear box 8 and the second reduction gear box 9; The top being positioned at the first girder part 3 and the second girder part 4 is separately installed with the first acoustic hood 12, and the surrounding being positioned at main beam structure 1 is provided with the second acoustic hood 13; The top being positioned at the first acoustic hood 12 is also provided with noise elimination ventilation plant 11; As shown in Figure 8, above-mentioned overall structure is installed in housing 20, the internal face of housing 20 is respectively arranged with pedestal 22, and the both sides of main beam structure 1 are installed on pedestal 22 by vibration isolator (not marking in figure).
As shown in Figure 2, main beam structure 1 is formed by single Main Girder Welding, and auxiliary girder 2 is welded on main beam structure 1.Adopt the Placement of welding, increase its intensity, improve the reliability of mechanism.
As shown in Figure 4, Figure 5 and Figure 6, the first acoustic hood 12 is detachable acoustic hood.
The mounting structure of the first acoustic hood 12 is: main beam structure 1 is provided with scaffold 15, scaffold 15 one-tenth groove type structure, installs sound insulation rubber layer 14 in groove, and the top of sound insulation rubber layer 14 is also positioned at scaffold 15 installation the first acoustic hood 12.
As shown in Figure 4 and Figure 5, the second acoustic hood 13 is embedded acoustic hood.
The mounting structure of the second acoustic hood 13 is: the second acoustic hood 13 is for having the plate construction of thickness, and it comprises outer sheet metal, damping layer, sound-absorbing material, support keel, membrane waterproofing, dust-proof glass and aluminum sound absorption protective panel; Second acoustic hood 13 snaps in the frame structure of the first girder part 3 and the second girder part 4 surrounding, and is welded and fixed.In the using process in later stage, dismounting and maintenance can be carried out.
As shown in Figure 7, the structure of noise elimination ventilation plant 11 is: comprise sound-insulation wall 16, sound-insulation wall 16 one-tenth maze-type structure, evenly spacedly on the internal face being positioned at sound-insulation wall 16 be provided with wedge-like body noise elimination block 17, the bottom being positioned at sound-insulation wall 16 is provided with exhaust outlet 18, and the side, top being positioned at sound-insulation wall 16 is provided with intake grill 19.The tube wall of sound-insulation wall 16 is acoustic isolater, and inner installation wedge-like body noise elimination block 17, namely can play logical wind action, also can play the effect strengthening absorption area, thus improve soundproof effect.
The cross section of single girder and auxiliary girder 2 is square tube.
The square tube of single girder adopts 100mm × 100mm × 6mm, and the square tube of auxiliary girder 2 adopts 80mm × 80mm × 5mm.
First horizontal pump 6, second horizontal pump 5, the 3rd horizontal pump 10, vertical water pump 7, first reduction gear box 8 and the second reduction gear box 9 are installed in the frame structure of the first girder part 3 and the second girder part 4 respectively by vibration isolator 21.
In practical work process:
General shape of the present invention presents certain layering, and equipment is arranged in the enterprising row space solid of raft frame, but not the single plane flat placed type of conventional panels posture raft frame is arranged.This space multistory arrangement effectively make use of the space in cabin on the one hand, improves the anti-torsion performance of space frame formula raft frame on the other hand.After determining the general shape (i.e. girder position) of space frame formula raft shelf structure, carry out dynamics calculation, optimize each auxiliary girder quantity and position, common principle is: when raft frame weight is no more than limit value, the first natural frequency of raising raft frame large as far as possible, needs more than 1.5 times that bring up to equipment axis frequency under normal circumstances.
The present invention is provided with the first acoustic hood 12 and the second acoustic hood 13, and noise insulation factor is at more than 10dB.
The present invention is also provided with noise elimination ventilation plant 11, the top being positioned at the first acoustic hood 12 has vent window (not shown in FIG.), built-in air bells exhauster (not shown in FIG.), and noise elimination vent window (not shown in FIG.) is had on the second acoustic hood 13, all noise elimination vent windows (not shown in FIG.) adopt curved pipeline, and pipe interior arranges that noise elimination wedge is to reduce the impact of leakage sound.
In actual using process, heat in raft frame, in running, is extracted out by air bells exhauster (not shown in FIG.), is drawn to the exhaust outlet 18 at the first acoustic hood 12 top by the present invention, enter in noise elimination ventilation plant 11, carry out eliminating the noise, ventilate after discharge from the intake grill 19 of noise elimination ventilation plant 11.
More than describing is explanation of the invention, and be not the restriction to invention, limited range of the present invention, see claim, within protection scope of the present invention, can do any type of amendment.
Claims (10)
1. a three-dimensional frame type buoyant raft vibration isolation device, it is characterized in that: the main beam structure (1) comprising into frame type, each framework of described main beam structure (1) is tilted is provided with auxiliary girder (2), described main beam structure (1) comprises the first girder part (3) and the second girder part (4) that link into an integrated entity, described first girder part (3) all becomes inverted trapezoidal structure with the second girder part (4), and the height of described first girder part (3) is higher than the height of the second girder part (4); The frame structure being positioned at the first girder part (3) is separately installed with the first horizontal pump (6), the first reduction gear box (8) and the 3rd horizontal pump (10), and the frame structure being positioned at the second girder part (4) installs the second horizontal pump (5), vertical water pump (7) and the second reduction gear box (9) respectively; The top being positioned at the first girder part (3) and the second girder part (4) is separately installed with the first acoustic hood (12), and the surrounding being positioned at main beam structure (1) is provided with the second acoustic hood (13); The top being positioned at the first acoustic hood (12) is also provided with noise elimination ventilation plant (11); Above-mentioned overall structure is installed in housing (20), the internal face of described housing (20) is respectively arranged with pedestal (22), and the both sides of described main beam structure (1) are installed on pedestal (22) by vibration isolator.
2. three-dimensional frame type buoyant raft vibration isolation device as claimed in claim 1, it is characterized in that: described main beam structure (1) is formed by single Main Girder Welding, described auxiliary girder (2) is welded on main beam structure (1).
3. three-dimensional frame type buoyant raft vibration isolation device as claimed in claim 1, is characterized in that: described first acoustic hood (12) is detachable acoustic hood.
4. three-dimensional frame type buoyant raft vibration isolation device as claimed in claim 3, it is characterized in that: the mounting structure of described first acoustic hood (12) is: described main beam structure (1) is provided with scaffold (15), described scaffold (15) becomes groove type structure, install sound insulation rubber layer (14) in groove, the top of described sound insulation rubber layer (14) is also positioned at described scaffold (15) installation the first acoustic hood (12).
5. three-dimensional frame type buoyant raft vibration isolation device as claimed in claim 1, is characterized in that: described second acoustic hood (13) is embedded acoustic hood.
6. three-dimensional frame type buoyant raft vibration isolation device as claimed in claim 5, it is characterized in that: the mounting structure of described second acoustic hood (13) is: described second acoustic hood (13) is for having the plate construction of thickness, and it comprises outer sheet metal, damping layer, sound-absorbing material, support keel, membrane waterproofing, dust-proof glass and aluminum sound absorption protective panel; Described second acoustic hood (13) snaps in the frame structure of the first girder part (3) and the second girder part (4) surrounding, and is welded and fixed.
7. three-dimensional frame type buoyant raft vibration isolation device as claimed in claim 1, it is characterized in that: the structure of described noise elimination ventilation plant (11) is: comprise sound-insulation wall (16), described sound-insulation wall (16) becomes maze-type structure, evenly spacedly on the internal face being positioned at sound-insulation wall (16) be provided with wedge-like body noise elimination block (17), the bottom being positioned at sound-insulation wall (16) is provided with exhaust outlet (18), and the side, top being positioned at sound-insulation wall (16) is provided with intake grill (19).
8. three-dimensional frame type buoyant raft vibration isolation device as claimed in claim 1, is characterized in that: the cross section of single girder and auxiliary girder (2) is square tube.
9. three-dimensional frame type buoyant raft vibration isolation device as claimed in claim 8, is characterized in that: the square tube of described single girder adopts 100mm × 100mm × 6mm, and the square tube of described auxiliary girder (2) adopts 80mm × 80mm × 5mm.
10. three-dimensional frame type buoyant raft vibration isolation device as claimed in claim 1, is characterized in that: described first horizontal pump (6), the second horizontal pump (5), the 3rd horizontal pump (10), vertical water pump (7), the first reduction gear box (8) and the second reduction gear box (9) are installed in the frame structure of the first girder part (3) and the second girder part (4) respectively by vibration isolator (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310216764.XA CN103267084B (en) | 2013-06-04 | 2013-06-04 | Three-dimensional frame type buoyant raft vibration isolation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310216764.XA CN103267084B (en) | 2013-06-04 | 2013-06-04 | Three-dimensional frame type buoyant raft vibration isolation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103267084A CN103267084A (en) | 2013-08-28 |
| CN103267084B true CN103267084B (en) | 2015-04-15 |
Family
ID=49010729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310216764.XA Active CN103267084B (en) | 2013-06-04 | 2013-06-04 | Three-dimensional frame type buoyant raft vibration isolation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103267084B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105575632A (en) * | 2015-12-08 | 2016-05-11 | 中国电力科学研究院 | Support frame for extra-high voltage shunt reactor sound insulation cover |
| CN105927704B (en) * | 2016-06-17 | 2018-01-26 | 中国船舶重工集团公司第七○二研究所 | Ring shears supporting type Buoyant Raft Shock-resistant System |
| CN111186548B (en) * | 2020-01-21 | 2020-10-30 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Shear-twist support high-impedance base |
| CN114475984B (en) * | 2021-12-24 | 2023-07-14 | 宜昌测试技术研究所 | UUV broadside high-power propulsion motor installs and vibration isolation device fast |
| CN116374077A (en) * | 2023-04-07 | 2023-07-04 | 中国船舶科学研究中心 | Modularized truss type floating raft vibration isolation device and vibration isolation stabilization method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08285208A (en) * | 1995-04-12 | 1996-11-01 | Mitsubishi Heavy Ind Ltd | Damping support structure of boiler |
| CN102338190B (en) * | 2011-07-07 | 2013-03-27 | 中国船舶重工集团公司第七○二研究所 | Truss-type floating raft vibration isolation device |
| CN102717885A (en) * | 2012-06-26 | 2012-10-10 | 上海交通大学 | Horizontal floating raft vibration isolation device |
-
2013
- 2013-06-04 CN CN201310216764.XA patent/CN103267084B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103267084A (en) | 2013-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103267084B (en) | Three-dimensional frame type buoyant raft vibration isolation device | |
| CN105803965B (en) | A kind of broadband sound absorption cell board | |
| CN104196825B (en) | A kind of from heat radiation hydraulic power unit damping acoustic hood | |
| CN103032381A (en) | Enclosure for reducing noise of axial flow fan | |
| CN106532493A (en) | Vibration damping and impact resisting device for electric power equipment | |
| CN104071092A (en) | Layered composite light acoustical material for rail train | |
| CN105927704A (en) | Circumferential direction shearing bearing type buoyant raft vibration isolating device | |
| CN201247583Y (en) | Removable sound isolation screen | |
| CN206259614U (en) | A kind of power equipment noise reduction buffer device | |
| CN115638111A (en) | Sound insulation cover for large-displacement screw compressor | |
| CN202248343U (en) | Sound insulating and vibration reducing device | |
| CN205369569U (en) | Can assembled large -scale room ventilation sound -proof housing of repeated dismantlement | |
| CN107910172B (en) | A kind of transformer denoising device | |
| CN109944476B (en) | Sound insulation and vibration isolation structure of high-sound-intensity acoustic reverberation chamber | |
| CN207334102U (en) | A kind of electromechanical equipment sound and vibration integrates isolating device | |
| CN213958581U (en) | Silencer with improved structure | |
| CN208280350U (en) | A kind of Anti-seismic used in nuclear power station wall hole installing type silencer | |
| CN201315153Y (en) | Sound insulation device made of composite materials in engine compartment | |
| CN105374349A (en) | Power capacitor noise reduction device based on external composite sound absorption material | |
| CN105015709A (en) | Anti-vibration and sound-insulating engine room cover for aluminum alloy yacht | |
| CN211499234U (en) | Integrated sound insulation foaming system | |
| CN107504329A (en) | A kind of electromechanical equipment sound and vibration integrates isolating device | |
| CN212055036U (en) | Noise reduction and sound insulation structure of air compressor | |
| CN102953447B (en) | A kind of sound insulation vibration absorber | |
| CN219159265U (en) | Noise elimination structure of fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |