CN103267084A - Three-dimensional frame type buoyant raft vibration isolation device - Google Patents
Three-dimensional frame type buoyant raft vibration isolation device Download PDFInfo
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- CN103267084A CN103267084A CN201310216764XA CN201310216764A CN103267084A CN 103267084 A CN103267084 A CN 103267084A CN 201310216764X A CN201310216764X A CN 201310216764XA CN 201310216764 A CN201310216764 A CN 201310216764A CN 103267084 A CN103267084 A CN 103267084A
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- main beam
- girder
- acoustic hood
- buoyant raft
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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 space framework formula Buoyant Raft Shock-resistant System is used for ship equipment control and other similar field vibration isolation control.
Background technique
Usually use vibration isolation measure in the 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, vibratory equipment is connected to by vibration isolator is single-layer partiting polarization on the structure.Double-layer vibration isolating is to come in the development of the basis of single-layer partiting polarization, and vibratory equipment is connected with intermediate mass by vibration isolator, and intermediate mass is connected with structure by vibration isolator is double-layer vibration isolating again.The anti-vibration performance that studies show that double-layer vibration isolating in a large number 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: the buoyant raft vibration isolation.Buoyant Raft Shock-resistant System is that many vibratory equipments are installed on the same intermediate structure by vibration isolator, again intermediate structure is connected to the isolation mounting that forms on the pedestal structure by vibration isolator.Here so-called intermediate structure just can be referred to as the raft body.Buoyant Raft Shock-resistant System has been used the effect that the multiple devices excitation is cancelled out each other, so its vibration isolating effect is more superior than double-layer vibration isolating.
What generally adopt in the design of raft body at present, is flat-rack raft body structure.It is strong that flat-rack raft frame is installed adaptability, however its antitorque commentaries on classics performance generally a little less than, limited the low frequency vibration isolation performance of raft frame largely.Also there is following shortcoming:
(1) adopt the single plane flat placed type to arrange, it is big to take up room.
(2) it builds comparatively complexity, has certain difficulty in the boats and ships vibrating isolation system of reality is used.
(3) no sound arrester, because installed device also can produce bigger running noise on the raft frame except producing vibration, there is bigger influence in this noise for ship's staff's live and work.In addition, running noise can encourage the boats and ships bulkhead to produce the acoustically-driven vibration.
Summary of the invention
Shortcomings such as the applicant is big at taking up room in the above-mentioned existing production technology, installation airplane crash provide a kind of space framework formula Buoyant Raft Shock-resistant System rational in infrastructure, thereby improve anti-vibration performance.
The technical solution adopted in the present invention is as follows:
A kind of space framework formula Buoyant Raft Shock-resistant System, the main beam structure that comprises into frame type, be tiltedly installed with auxiliary girder in each framework of described main beam structure, described main beam structure comprises first girder part and the second girder part that links into an integrated entity, described first girder part all becomes inverted trapezoidal structure with second girder part, and the height of described first girder part is higher than the height of second girder part; The frame structure that is positioned at first girder part and second girder part is separately installed with first horizontal pump, second horizontal pump, the 3rd horizontal pump, vertical water pump, first reduction gear box and second reduction gear box; The top that is positioned at first girder part and second girder part is separately installed with first acoustic hood, and what be positioned at main beam structure is equipped with second acoustic hood all around; The top that is positioned at first acoustic hood also is equipped with the noise elimination ventilation plant; Above-mentioned overall structure is installed in the housing, is respectively arranged with pedestal on the internal face of described housing, and the both sides of described main beam structure are installed on the pedestal by vibration isolator.
As further improvement in the technical proposal:
Described main beam structure forms by single Main Girder Welding, and described auxiliary girder is welded on the 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 shape structure is put up in described installation, and the sound insulation rubber layer is installed in the groove, and the top of described sound insulation rubber layer also is positioned at described scaffold installation 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, dustproof glass and aluminum sound absorption protection slab; Described second acoustic hood snaps in first girder part and second girder part frame structure all around, and welding is fixing;
The structure of described noise elimination ventilation plant is: comprise the sound insulation body of wall, described sound insulation body of wall becomes maze-type structure, be positioned at sound insulation body of wall internal face on the evenly spaced wedge-like body noise elimination piece that is provided with, the bottom that is positioned at the sound insulation body of wall is provided with exhaust outlet, and top one side that is positioned at the sound insulation body of 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, second horizontal pump, the 3rd horizontal pump, vertical water pump, first reduction gear box and second reduction gear box are installed in the frame structure of first girder part and second girder part by vibration isolator respectively.
Beneficial effect of the present invention is as follows:
At first, space framework torsional frequency is than first natural frequency (the being generally whole torsional frequency) height of traditional flat raft frame, the three-dimensional form of higher posture raft frame presentation space, its whole resistance against torsion is better, and this just makes the first natural frequency (be generally whole first natural frequency make space frame formula raft frame have better anti-vibration performance) of space frame formula raft frame.Secondly, space frame formula raft frame has adopted acoustic isolater to come the shielding device running noise, and the vibration that makes running noise excitation boats and ships bulkhead produce greatly reduces.Again, space frame formula raft frame can be by filling vibration damping particle, viscosity vibration-damping colloid and lay means such as viscous damping material at the square tube outer surface and further improve its vibration isolating effect in that square tube being inner.
Also generally be better than traditional flat raft frame in boats and ships space utilization and apparatus arrangement rate (namely under the situation of raft frame intensity permission, the equipment volume amount that can arrange on each raft frame).Traditional flat raft frame is plane, and apparatus arrangement is on the surface of raft frame, and space frame formula raft is put up space multistory multilayer shape, and device rendered space multistory is arranged, has also improved the apparatus arrangement rate of raft frame when having effectively utilized the boats and ships inner space.
Description of drawings
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 adds space frame formula raft frame schematic representation behind the acoustic hood for the present invention.
Fig. 5 is the right elevation of Fig. 4.
Fig. 6 is the partial enlarged drawing of A portion among Fig. 5.
Fig. 7 is the scheme of installation of the present invention in the section of cabin.
Fig. 8 is the eliminate the noise structural representation of ventilation plant of the present invention.
Wherein: 1, main beam structure; 2, auxiliary girder; 3, the first girder part; 4, the second girder part; 5, second horizontal pump; 6, first horizontal pump; 7, vertical water pump; 8, first reduction gear box; 9, second reduction gear box; 10, the 3rd horizontal pump; 11, noise elimination ventilation plant; 12, first acoustic hood; 13, second acoustic hood; 14, sound insulation rubber layer; 15, scaffold; 16, sound insulation body of wall; 17, wedge-like body noise elimination piece; 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 space framework formula Buoyant Raft Shock-resistant System of present embodiment, the main beam structure 1 that comprises into frame type, be tiltedly installed with auxiliary girder 2 in each framework of main beam structure 1, main beam structure 1 comprises the first girder part 3 and the second girder part 4 that links into an integrated entity, the 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 that is positioned at the first girder part 3 and the second girder part 4 is separately installed with first horizontal pump 6, second horizontal pump 5, the 3rd horizontal pump 10, vertical water pump 7, first reduction gear box 8 and second reduction gear box 9; The top that is positioned at the first girder part 3 and the second girder part 4 is separately installed with first acoustic hood 12, be positioned at main beam structure 1 around second acoustic hood 13 is installed; The top that is positioned at first acoustic hood 12 also is equipped with noise elimination ventilation plant 11; As shown in Figure 8, above-mentioned overall structure is installed in the housing 20, is respectively arranged with pedestal 22 on the internal face of housing 20, and the both sides of main beam structure 1 are installed on the pedestal 22 by vibration isolator (not marking among the figure).
As shown in Figure 2, main beam structure 1 forms by single Main Girder Welding, and auxiliary girder 2 is welded on the main beam structure 1.Adopt the Placement of welding, increase its intensity, improve the reliability of mechanism.
As Fig. 4, Fig. 5 and shown in Figure 6, first acoustic hood 12 is detachable acoustic hood.
The mounting structure of first acoustic hood 12 is: main beam structure 1 is provided with scaffold 15, and 15 one-tenth groove shapes of scaffold structure is installed sound insulation rubber layer 14 in the groove, and the top of sound insulation rubber layer 14 also is positioned at scaffold 15 installations first acoustic hood 12.
As shown in Figure 4 and Figure 5, second acoustic hood 13 is embedded acoustic hood.
The mounting structure of second acoustic hood 13 is: 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, dustproof glass and aluminum sound absorption protection slab; Second acoustic hood 13 snaps in the first girder part 3 and the second girder part 4 frame structure all around, and welding is fixing.In the using process in later stage, can carry out dismounting and maintenance.
As shown in Figure 7, the structure of noise elimination ventilation plant 11 is: comprise sound insulation body of wall 16,16 one-tenth maze-type structures of sound insulation body of wall, be positioned at sound insulation body of wall 16 internal face on the evenly spaced wedge-like body noise elimination piece 17 that is provided with, the bottom that is positioned at sound insulation body of wall 16 is provided with exhaust outlet 18, and top one side that is positioned at sound insulation body of wall 16 is provided with intake grill 19.The tube wall of sound insulation body of wall 16 is acoustic isolater, and the inner wedge-like body noise elimination piece 17 of installing namely can play the effect of ventilation, also can play the effect that strengthens the sound absorption area, thereby improve the noise elimination 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 second reduction gear box 9 are installed in the frame structure of the first girder part 3 and the second girder part 4 by vibration isolator 21 respectively.
In the practical work process:
General shape of the present invention presents certain layering, and equipment is in the three-dimensional layout of the enterprising row space of raft frame, but not the single plane flat placed type of conventional panels posture raft frame is arranged.This space multistory arrangement has effectively utilized the space in the cabin on the one hand, has improved the antitorque commentaries on classics performance of space frame formula raft frame on the other hand.After having determined the general shape (being the girder position) of space frame formula raft shelf structure, carry out dynamics calculation, optimize each auxiliary girder quantity and position, common principle is: be no more than under the situation of limit value in raft frame weight, the first natural frequency of big as far as possible raising raft frame generally needs to bring up to more than 1.5 times of equipment axis frequency.
The present invention is provided with first acoustic hood 12 and second acoustic hood 13, and noise insulation factor is more than 10dB.
The present invention also is provided with noise elimination ventilation plant 11, the top that is arranged in first acoustic hood 12 has vent window (figure does not draw), built-in air bells exhauster (not drawing among the figure), and have noise elimination vent window (not drawing among the figure) at second acoustic hood 13, all noise elimination vent windows (not drawing among the figure) adopt bent type pipeline, and pipe interior arranges that the noise elimination wedge is to reduce the influence of leakage sound.
In the actual using process, the present invention extracts the heat in the raft frame out by air bells exhauster (not drawing among the figure) in running, is drawn to the exhaust outlet 18 at first acoustic hood, 12 tops, enter in the noise elimination ventilation plant 11, discharge from the intake grill 19 of noise elimination ventilation plant 11 back of eliminating the noise, ventilate.
More than describing is explanation of the invention, is not that institute of the present invention restricted portion within protection scope of the present invention, can be done any type of modification referring to claim to the restriction of invention.
Claims (10)
1. space framework formula Buoyant Raft Shock-resistant System, it is characterized in that: the main beam structure (1) that comprises into frame type, be tiltedly installed with auxiliary girder (2) in each framework of described main beam structure (1), described main beam structure (1) comprises first girder part (3) and second girder part (4) that links into an integrated entity, described first girder part (3) all becomes inverted trapezoidal structure with second girder part (4), and the height of described first girder part (3) is higher than the height of second girder part (4); The frame structure that is positioned at first girder part (3) and second girder part (4) is separately installed with first horizontal pump (6), second horizontal pump (5), the 3rd horizontal pump (10), vertical water pump (7), first reduction gear box (8) and second reduction gear box (9); The top that is positioned at first girder part (3) and second girder part (4) is separately installed with first acoustic hood (12), and what be positioned at main beam structure (1) is equipped with second acoustic hood (13) all around; The top that is positioned at first acoustic hood (12) also is equipped with noise elimination ventilation plant (11); Above-mentioned overall structure is installed in the housing (20), is respectively arranged with pedestal (22) on the internal face of described housing (20), and the both sides of described main beam structure (1) are installed on the pedestal (22) by vibration isolator.
2. space framework formula Buoyant Raft Shock-resistant System as claimed in claim 1, it is characterized in that: described main beam structure (1) forms by single Main Girder Welding, and described auxiliary girder (2) is welded on the main beam structure (1).
3. space framework formula Buoyant Raft Shock-resistant System as claimed in claim 1, it is characterized in that: described first acoustic hood (12) is detachable acoustic hood.
4. space framework formula Buoyant Raft Shock-resistant System 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 shape structure, sound insulation rubber layer (14) is installed in the groove, and the top of described sound insulation rubber layer (14) also is positioned at described scaffold (15) installation first acoustic hood (12).
5. space framework formula Buoyant Raft Shock-resistant System as claimed in claim 1, it is characterized in that: described second acoustic hood (13) is embedded acoustic hood.
6. space framework formula Buoyant Raft Shock-resistant System 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, dustproof glass and aluminum sound absorption protection slab; Described second acoustic hood (13) snaps in first girder part (3) and second girder part (4) frame structure all around, and welding is fixing.
7. space framework formula Buoyant Raft Shock-resistant System as claimed in claim 1, it is characterized in that: the structure of described noise elimination ventilation plant (11) is: comprise sound insulation body of wall (16), described sound insulation body of wall (16) becomes maze-type structure, be positioned at sound insulation body of wall (16) internal face on the evenly spaced wedge-like body noise elimination piece (17) that is provided with, the bottom that is positioned at sound insulation body of wall (16) is provided with exhaust outlet (18), and top one side that is positioned at sound insulation body of wall (16) is provided with intake grill (19).
8. space framework formula Buoyant Raft Shock-resistant System as claimed in claim 1, it is characterized in that: the cross section of single girder and auxiliary girder (2) is square tube.
9. space framework formula Buoyant Raft Shock-resistant System as claimed in claim 8 is characterized in that: the square tube employing 100mm * 100mm * 6mm of described single girder, the square tube employing 80mm * 80mm * 5mm of described auxiliary girder (2).
10. space framework formula Buoyant Raft Shock-resistant System as claimed in claim 1 is characterized in that: described first horizontal pump (6), second horizontal pump (5), the 3rd horizontal pump (10), vertical water pump (7), first reduction gear box (8) and second reduction gear box (9) are installed on first girder part (3) and second girder partly in the frame structure of (4) by vibration isolator (21) respectively.
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| CN201310216764.XA CN103267084B (en) | 2013-06-04 | 2013-06-04 | Three-dimensional frame type buoyant raft vibration isolation device |
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| CN201310216764.XA CN103267084B (en) | 2013-06-04 | 2013-06-04 | Three-dimensional frame type buoyant raft vibration isolation device |
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| CN103267084B CN103267084B (en) | 2015-04-15 |
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Cited By (6)
| 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 |
| CN105927704A (en) * | 2016-06-17 | 2016-09-07 | 中国船舶重工集团公司第七○二研究所 | Circumferential direction shearing bearing type buoyant raft vibration isolating device |
| CN111186548A (en) * | 2020-01-21 | 2020-05-22 | 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 |
| CN113911308A (en) * | 2021-10-26 | 2022-01-11 | 湖北宜昌精森机械有限公司 | Raft frame of power cabin raft of ship |
| CN114475984A (en) * | 2021-12-24 | 2022-05-13 | 宜昌测试技术研究所 | UUV broadside high-power propulsion motor quick installation and vibration isolation device |
| 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 |
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Cited By (8)
| 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 |
| CN105927704A (en) * | 2016-06-17 | 2016-09-07 | 中国船舶重工集团公司第七○二研究所 | Circumferential direction shearing bearing type buoyant raft vibration isolating device |
| 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 |
| CN111186548A (en) * | 2020-01-21 | 2020-05-22 | 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 |
| CN113911308A (en) * | 2021-10-26 | 2022-01-11 | 湖北宜昌精森机械有限公司 | Raft frame of power cabin raft of ship |
| CN114475984A (en) * | 2021-12-24 | 2022-05-13 | 宜昌测试技术研究所 | UUV broadside high-power propulsion motor quick installation and vibration isolation device |
| 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 |
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