CN101311070B

CN101311070B - Modularized shock resistant vibration isolation raft for ship basic propulsion system

Info

Publication number: CN101311070B
Application number: CN200810122470XA
Authority: CN
Inventors: 陈义峰; 倪建峰; 王丽娟; 李卉; 陈炜
Original assignee: JIANGSU NANJI MACHINERY CO Ltd
Current assignee: JIANGSU NANJI MACHINERY CO Ltd
Priority date: 2008-06-19
Filing date: 2008-06-19
Publication date: 2011-05-04
Anticipated expiration: 2028-06-19
Also published as: CN101311070A

Abstract

The invention discloses a modularized shock resistance and vibration isolation buoyant raft for a main propulsion unit of a ship, which comprises a raft body consisting of a main cavity body and two concave cavity bodies. An upper layer shock-resistance vibration isolator is arranged correspondingly to an under-chassis of the main propulsion unit, while an lower layer shock-resistance vibration isolator is arranged correspondingly to a ship base. The main propulsion unit is arranged at the floating raft, which can effectively absorb the lability energy of the main propulsion unit, isolate the lability energy from transmitting to a ship body, thus lowering vibration strength, reducing impact energy, improving the quietness of the ship and ensuring the living environment of passengers and the environmental conditions of instrument.

Description

Modularized shock resistant vibration isolation raft for ship basic propulsion system

Technical field

The present invention relates to a kind of shock resistant vibration isolation equipment of boats and ships basic propulsion system, specifically relate to the basic propulsion system modularized shock resistant vibration isolation buoyant raft of naval vessels, boats and ships, luxury yacht, scientific investigation ship, medical boat etc.

Background technology

The boats and ships basic propulsion system is that boats and ships are promoted mainly precession power, boats and ships basic propulsion system (for example diesel engine) is installed on the shell supporting base generally speaking, directly contact with the shell rigidity, the vibration that it produces is directly delivered to each cabin of boats and ships by hull structure, influences the working environment of underwater acoustic system and other precision equipment; Because vibration is too high, also influence occupant's living environment; When the disguise, particularly naval vessels that its vibration also destroys boats and ships is subjected to external thump, owing to do not have the anti-impact isolation mounting, and cause the breakage and the function reduction of basic propulsion system.

Because the existence of the problems referred to above has limited the sound-insulation capability of boats and ships basic propulsion systems and the raising of impact resistance, thereby the in-use performance and the survivability that have directly influenced the boats and ships that special mission is arranged reduce.

Summary of the invention

The objective of the invention is deficiency at above-mentioned technology existence, a kind of Modularized shock resistant vibration isolation raft for ship basic propulsion system is provided, effectively absorb the basic propulsion system vibrational energy, and the separating vibration energy is to the hull transmission, reduce vibration intensity, reduce impact energy, improve the quietness of boats and ships, guarantee occupant's living environment and instrument environment for use.

In order to achieve the above object, the technical solution used in the present invention is: a kind of Modularized shock resistant vibration isolation raft for ship basic propulsion system, support to main cavity body by upper plate and lower plate through the floor group, the two ends symmetry of main cavity body respectively connects one group of matrix cavity body that is supported to through the floor group by upper plate and lower plate.

Further, described two matrix cavity body comprise inverted ladder type or " V " type or " U " type that is out suitable for reading; Weld elongated reinforced rib more than between the oblique lower plate bottom surface of two matrix cavity body and between main cavity body lower plate bottom surface; The upper plate of described main cavity body and two matrix cavity body and the spacing between the lower plate are more than the 5cm; Spacing between the described two matrix cavity body horizontal center lines is more than the 150cm; Described floor group is by polylith floor horizontal vertical or crisscross be equidistantly or unequal-interval is formed;

The technical program also comprises installs an above upper strata shock resistant vibration isolation device on the upper plate of described main cavity body and matrix cavity body, the corresponding installation of under-chassis of the installation site of shock resistant vibration isolation device on upper plate, upper strata and basic propulsion system; The lower plate bottom surface of main cavity body and matrix cavity body is installed one with levels shock resistant vibration isolation device,

The corresponding installation in the lower floor installation site of shock resistant vibration isolation device on lower plate with the hull pedestal; Described upper strata shock resistant vibration isolation device and lower floor's shock resistant vibration isolation device are that rubber impact hits vibration isolator or steel rope shock resistant vibration isolation device;

Floor bilateral clearance in the upper surface of described two matrix cavity body bottom level cavity body and the horizontal cavity body is provided with the three-dimensional limiting device.

Cavity body that constitutes by upper plate, lower plate, floor group and the boats and ships basic propulsion system modularized shock resistant buoyant raft of forming jointly with the shock resistant vibration isolation device, its principle of work is:

Vibration isolation principle: many basic propulsion systems form scratches moving source and multimass body more, reaches the reduction level of vibration by mass action principle each other, and the damping force characteristics by the shock resistant vibration isolation device absorbs vibrational energy, finally reaches the vibration isolation effect;

Shock resistance principle: by the optimum damping ratio of multimass body, store, delay and put impact energy, reach and reduce the suffered impulsive force of basic propulsion system to energy absorbing and selection shock resistant vibration isolation device etc.

Adopt above technical scheme, the beneficial effect that the present invention reaches is:

The alternation disturbance force that a, this buoyant raft produce basic propulsion system plays the effect that absorbs and stabilize, effectively absorb the basic propulsion system vibrational energy, and the separating vibration energy is to the hull transmission, reduced vibrational energy, further dissipate by the energy of vibration isolator, thereby reduced the harm of vibration boats and ships to vibration;

B, this buoyant raft can reduce the impulsive force that basic propulsion system is produced, and reduce the injury to basic propulsion system, improve disguise, usability and the survivability of naval vessels.

C, this buoyant raft make basic propulsion system and shell Elastic Contact, and the vibration of avoiding producing is directly delivered to each cabin of boats and ships, can improve the quietness of boats and ships, thereby improve the working environment of underwater acoustic system and other precision equipment and occupant's living environment.

Description of drawings

Fig. 1 is a front view of the present invention;

Fig. 2 is the birds-eye view of Fig. 1;

The structural representation that Fig. 3 installs and uses for the present invention.

In the accompanying drawing: upper strata shock resistant

vibration isolation device

1,1a, 1b,

upper plate

2,2a, 2b, lower floor's shock resistant

vibration isolation device

3,3a, 3b, three-dimensional limiting device 4, reinforced rib 5, main cavity body 6, matrix cavity body 6a, 6b,

lower plate

7,7a, 7b,

floor group

8,8a, 8b, under-chassis 9, pedestal 10.

The specific embodiment

Further specify embodiments of the present invention below in conjunction with drawings and Examples.

Among Fig. 1,2, support to the three-dimensional main cavity body 6 of rectangle through floor group 8 by upper plate 2 and lower plate 7, the two ends symmetry of main cavity body respectively connects one group of matrix cavity body 6a, 6b of being supported to through floor group 8a, 8b by upper plate 2a, 2b and lower plate 7a, 7b, and main cavity body 6 and matrix cavity body 6a, 6b are by being welded into a modularization raft body.Matrix cavity body 6a, 6b are the inverted ladder type suitable for reading of opening as shown in the figure, also can adopt " V " type or " U " type, also comprise other shape of unlisted approximate above-mentioned three kinds of shapes.Weld elongated reinforced rib 5 more than between the oblique lower plate bottom surface of two matrix cavity body and between main cavity body lower plate bottom

surface.Floor group

8,8a, 8b are by polylith floor horizontal vertical or crisscross be equidistantly or unequal-interval is formed.Spacing between described

upper plate

2,2a, 2b and

lower plate

7,7a, the 7b is more than the 5cm, and the spacing between the two matrix cavity body horizontal center lines is more than the 150cm.

Described modularization raft body upper plate is provided with the upper strata shock resistant vibration isolation device more than, modularization raft body lower plate bottom surface is provided with the lower floor's shock resistant vibration isolation device more than, and upper strata shock resistant vibration isolation device and lower floor's shock resistant vibration isolation device are that rubber impact hits vibration isolator or steel rope shock resistant vibration isolation device.

Floor bilateral clearance in the upper surface of two matrix cavity body 6a, 6b bottom level cavity body and the horizontal cavity body is provided with three-dimensional limiting device 4.When being subjected to stormy waves or vibration, the displacement of raft body can be subjected to the constraint of limiting device, and over-large displacement can not occur.

Among Fig. 3, by main cavity body 6, matrix cavity body 6a, the common complete boats and ships basic propulsion system modularization raft body of forming of 6b, its upper plate is by the under-chassis 9 corresponding installations of an above upper strata shock resistant vibration isolation device with basic propulsion system (for example diesel engine), its lower plate is installed on the hull pedestal 10 with levels shock resistant vibration isolation device by one, make basic propulsion system and shell Elastic Contact, the function that has just possessed Modularized shock resistant vibration isolation raft for ship basic propulsion system, that is: the modularization buoyant raft is the support platform of many basic propulsion systems, is again the isolation mounting and the anti-impact device of basic propulsion system simultaneously.

Claims

1. Modularized shock resistant vibration isolation raft for ship basic propulsion system, it is characterized in that: first upper plate (2) and first lower plate (7) support to main cavity body (6) through the first floor group (8), the two ends symmetry of main cavity body connects first, two matrix cavity body (6a, 6b), the first matrix cavity body is supported to through the second floor group (8a) by second upper plate (2a) and second lower plate (7a), the second matrix cavity body is supported to through trislab group (8b) by the 3rd upper plate (2b) and the 3rd lower plate (7b), described first, two matrix cavity body (6a, 6b) include inverted ladder type or " V " type or " U " type that is out suitable for reading, described main cavity body (6) and first, two matrix cavity body (6a, an above upper strata shock resistant vibration isolation device (1 is installed respectively on upper plate 6b), 1a, 1b), described main cavity body (6) and first, two matrix cavity body (6a, lower plate bottom surface 6b) is installed one respectively with levels shock resistant vibration isolation device (3,3a, 3b), described first, two, trislab group (8,8a, 8b) by polylith floor horizontal vertical or crisscross be equidistantly or unequal-interval is formed, welding elongated reinforced rib (5) more than between the oblique lower plate bottom surface of described two matrix cavity body and between main cavity body lower plate bottom surface.

2. Modularized shock resistant vibration isolation raft for ship basic propulsion system according to claim 1 is characterized in that: the spacing between described first upper plate (2) and first lower plate (7), between second upper plate (2a) and second lower plate (7b), between the 3rd upper plate (2b) and the 3rd lower plate (7b) is more than the 5cm.

3. Modularized shock resistant vibration isolation raft for ship basic propulsion system according to claim 1 is characterized in that: (6a, 6b) spacing between the horizontal center line is more than the 150cm to described two matrix cavity body.

4. Modularized shock resistant vibration isolation raft for ship basic propulsion system according to claim 1, it is characterized in that: described main cavity body (6) and two matrix cavity body (6a, the installation site of an above upper strata shock resistant vibration isolation device of installing respectively on upper plate 6b) and the corresponding installation of under-chassis (9) of basic propulsion system.

5. boats and ships basic propulsion system according to claim 1 is resisted towards the vibration isolation buoyant raft with modularization, it is characterized in that: described main cavity body (6) and two matrix cavity body (6a, the installation site and the corresponding installation of hull pedestal (10) that installs respectively lower plate bottom surface 6b) with levels shock resistant vibration isolation device.

6. Modularized shock resistant vibration isolation raft for ship basic propulsion system according to claim 1 is characterized in that: described upper strata shock resistant vibration isolation device and lower floor's shock resistant vibration isolation device are that rubber impact hits vibration isolator or steel rope shock resistant vibration isolation device.