CN109764079A - A kind of marine generator device systems vibration and noise reducing device - Google Patents
A kind of marine generator device systems vibration and noise reducing device Download PDFInfo
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- CN109764079A CN109764079A CN201811655165.7A CN201811655165A CN109764079A CN 109764079 A CN109764079 A CN 109764079A CN 201811655165 A CN201811655165 A CN 201811655165A CN 109764079 A CN109764079 A CN 109764079A
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- marine generator
- noise reducing
- buffering
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Abstract
The invention discloses a kind of marine generator device systems vibration and noise reducing devices, the mounting platform bracket for being placed in the marine generator cabin bilge including one, it is provided with one on mounting platform bracket for disposing the plate body of generating equipment, the damper mechanism that the exciting force for generating generating equipment that one is used to support plate body is decayed and absorbed is provided in the mounting platform bracket.Structure of the invention is compact, easy for installation, the mounting means on hull pedestal is directly rigidly connected to instead of traditional ship power-equipment, by the quantity for adding damper unit, can arbitrarily it be expanded according to the quantity of prime mover practical in ship and engine, it is controlled by multiple damper units and the vibration that decays, it efficiently controls and vibrates and reduce noise, and uniform force.
Description
Technical field
The present invention relates to ship equipment technical fields more particularly to a kind of marine generator device systems vibration and noise reducing to fill
It sets.
Background technique
Mechanical oscillation and noise are one of Specifeca tion speeifications of ship, and cabin power-equipment is the master of Ship Vibration noise
Source is wanted, with the fast development of shipbuilding technology, noise reduction technology is increasingly paid close attention to by people.Mechanical equipment shakes on ship
The raw noise of movable property brings many hazards to ship, substantially reduces the service performance of ship.Ship noise mainly have mechanical noise,
Propeller noise, the big noise source of hydrodynamic noise three.Wherein ship is under electric propulsion work, and mechanical noise accounts for when lowsteaming
70% or so of noise global radiation, the vibration of these noises mechanical equipment in ship.But the vibration of ship equipment
It is but always an insoluble problem with noise.With the raising of scientific and technological level, anti-vibration performance to ship equipment and every
More stringent requirements are proposed for acoustic performance.The type of power-equipment and large number of in watercraft engine room, various power-equipments are according to one
Fixed requirement is arranged in engine room inside, to realize the allomeric function of cabin.Various power-equipments are due to its working principle in cabin
Difference, vibration noise source characteristic has differences, and the vibration isolation measure taken it is also different.It is various since Arrangement of Engine-room is compact
The vibration noise that power-equipment generates at runtime influences each other when being transmitted to cabin, and interaction together forms cabin
Vibration noise.
It it is well known that the principal vibration noise source of ship is generator bay generating equipment at present, that is, is ship power supply
One group to multiple groups diesel engine and generating set, diesel vibration feature is more vibration sources, broadband, complex shape, exciting force
Can simple classification be, due to it is interior burning occur direct excited vibration power (such as the gravity of cylinder interior gas pressure, crank link mechanism and
Its inertia force) and due to Diesel Engine Mechanical work occur indirect excitation power (such as piston knock, timing gears, valve train and combustion
Material injection system vibration etc.), the periodic function of Duo Shifei simple harmonic quantity, under exciting force effect, there are six-freedom degrees for diesel engine
Rigid motion, complete machine oscillation situation are also propped up in addition to being influenced by parameter itself, weight, inertia, excitation force frequency, intensity etc.
Hold the restriction of performance.The mounting means of ship power equipment is directly rigidly connected on hull pedestal, and vibration is larger, is easy to draw
Play that ship power vibration equipment is excessive and damage, and hull pedestal is subjected to bigger torque vibration, easily causes fatigue damage.
It follows that the vibration and noise of diesel engine and generating set generation, not only lie fallow to the work of crewman and passenger
Environment has some impact on, and the service life and working environment of instrument and meter, detection device on ship etc. can also be made
It is influenced at certain.Therefore, to fundamentally solving Ship Vibration noise problem, it is necessary to for generator bay generating equipment into
The processing of row vibration and noise reducing.Currently, the vibration isolation measure of ship mainly has single-layer partiting polarization, double-layer vibration isolating, buoyant raft vibration isolation.Single-layer partiting polarization is
Vibrational excitation source device is connected directly between in structure by finger by vibration isolator.Double-layer vibration isolating is developed on the basis of single-layer partiting polarization
Get up, refer to and vibrational excitation source device connect by vibration isolator with intermediate mass, then by intermediate mass pass through vibration isolator and
Structure connection.Develop a kind of i.e. buoyant raft vibration isolation of novel vibration isolation way again on the basis of double-layer vibration isolating.So-called buoyant raft vibration isolation is
Vibration isolation is concentrated, by vibrational excitation source device rigidity all in ship or is resiliently mounted in a public structure, public structure is logical
It crosses vibration isolator to be connected on installation foundation, public structure herein is buoyant raft.It is a large amount of it was verified that buoyant raft vibration isolation is at present most
Effective vibration isolation way.
CN 201103649Y discloses a kind of floating raft type double-layer isolation device, and the utility model includes vibration damping raft frame, is used for
Support vibration damping raft frame and the lower layer's vibration isolator contacted with ground, the upper layer for being used to support powerplant module and being mounted on vibration damping raft frame
Vibration isolator, vibration damping raft frame are elasticly connected with the raft frame retainer being fixed on ground, are provided with and are used for and power on vibration damping raft frame
The single machine retainer of each single machine elastic connection of unit.
207893041 U of CN discloses a kind of ship power vibration equipment control device, belongs to noise reduction technology neck
Domain.The utility model includes the air compressor unit set gradually from top to bottom, intermediate buoyant raft and elastic foundation, air compressor
Vibration isolator is equipped between group and intermediate buoyant raft and between intermediate buoyant raft and elastic foundation；Intermediate buoyant raft includes top plate I, lower layer
The plate I and floor I being arranged between top plate I and lower plywood I；Elastic foundation includes that top plate II, lower plywood II and setting exist
Floor II between top plate II and lower plywood II is additionally provided with acoustic board in intermediate buoyant raft and elastic foundation.
Above-mentioned damping control device, which realizes, consumes vibrational energy on transmission path, improves ship equipment
Anti-vibration performance and sound insulation property, but still come with some shortcomings, such as be merely able to carry out vibration damping in the vertical direction, it can not
Realization effectively can be absorbed and be offset to the vibration of different directions, and the land occupation of device space is larger, and multiple groups disturbing source is needed
Multiple vibration absorbers are set, and the equipment for generating disturbing source not can avoid the impact of hull installation pedestal in vibration, when long
Between vibration be easy to cause equipment damage, can not realize noise reduction truly by reducing vibration, and for not
The vibration of same frequency can not be accomplished effectively to absorb and weaken.
Summary of the invention
In view of the deficienciess of the prior art, the technical problem to be solved by the invention is to provide one kind can be realized it is more
While the vibration and noise reducing of frequency range, effective decaying can be carried out to the multi-faceted exciting force of complex shape and is absorbed, energy
Enough adapt to the impact resistance on vibration isolation chassis and structural stability height, marine generator device systems vibration damping with long service life drop
It makes an uproar device.
In order to solve the above technical problems, the technical solution used in the present invention is: a kind of marine generator device systems subtract
Shake denoising device, and the mounting platform bracket for being placed in the marine generator cabin bilge including one is provided with one on mounting platform bracket
For disposing the plate body of generating equipment, it is characterised in that: be provided with a general for being used to support plate body in the mounting platform bracket
The damper mechanism that the exciting force that generating equipment generates is decayed and absorbed, the damper mechanism include a shell with closing inner chamber
Body is provided with the buffering body of rod for upwardly extending and stretching out shell in closing inner chamber, and one is offered at the top of the shell and is permitted
Perhaps the adjustment hole that the buffering body of rod stretches out, the aperture of adjustment hole are greater than the outer diameter of the buffering body of rod, surround buffer bar at the top of shell
Body is circumferentially provided with the elastic sealing film for sealing adjustment hole, and the bottom of the closing inner chamber is provided with one and the buffering body of rod
The horizontal plate body that is fixedly connected of bottom end, multiple groups are installed between horizontal plate body and housing bottom for providing to the buffering body of rod
The spring body of axial elasticity support force, in the closing inner chamber, the axis direction along the buffering body of rod is in horizontal plate body and shell
It is disposed with multiple damper units for the radial cushion effect of buffering body of rod offer between top, adds in the closing inner chamber
It is marked with the high viscosity liquid for all submerging damper unit.
Above-mentioned marine generator device systems vibration and noise reducing device, the damper unit are external including being fixed on buffer bar
The hollow elastic ball body in portion is symmetrically set along the horizontal axis direction of hollow elastic ball body in the external circumferential of hollow elastic ball body
Four groups are equipped with for applying to hollow elastic ball body the arc panel of radial cushion effect by high viscosity liquid, in each arc panel and sky
Buffer gap is respectively formed between heart elastic sphere surface, each arc panel passes through fixed link respectively and the inner wall of shell is solid
It is fixed.
Above-mentioned marine generator device systems vibration and noise reducing device, is provided with and buffers between adjacent damper unit
What the body of rod was fixedly connected is used to provide the auxiliary plate body of axial auxiliary cushion effect, the auxiliary plate body and buffer bar to the buffering body of rod
The axis of body is arranged vertically.
Above-mentioned marine generator device systems vibration and noise reducing device is provided with and plate body phase at the top of the buffering body of rod
The support plate for being used to stablize Supporting plate even.
Above-mentioned marine generator device systems vibration and noise reducing device is provided with and is closed in the upper portion side wall of the shell
Inner cavity be connected for into closing inner chamber fill high viscosity liquid liquid injection pipe, be provided on the lower sides of shell with
What closing inner chamber was connected is used to carry out closing inner chamber medium-high viscosity liquid the drain pipe of discharge replacement.
Above-mentioned marine generator device systems vibration and noise reducing device, the song of the arc panel and hollow elastic ball body surface face
Rate radius is identical.
Above-mentioned marine generator device systems vibration and noise reducing device, the mounting platform bracket include and marine generator
The lower rectangular frame that the cabin bilge is fixedly connected and the upper rectangular frame above lower rectangular frame, in lower rectangular frame
Be connected between frame and upper rectangular frame more be served only for support upper rectangular frame columns, four in upper rectangular frame
It is separately provided for the horizontal inclined plate of Auxiliary support plate body at a angle, offers on horizontal inclined plate and is adapted to the support plate
Mounting hole, the aperture of the mounting hole is greater than support plate, and the top of support plate stretches out mounting hole and is simultaneously higher than the upper of horizontal inclined plate
Surface.
Above-mentioned marine generator device systems vibration and noise reducing device, the cross section of the shell are cylindrical or square
Shape.
The advantages of marine generator device systems vibration and noise reducing device of the present invention is: structure of the invention is compact, easy for installation,
It is directly rigidly connected to the mounting means on hull pedestal instead of traditional ship power-equipment, by the number for adding damper unit
Amount, can arbitrarily expand according to the quantity of prime mover practical in ship and engine, be controlled and decayed by multiple damper units
Vibration efficiently controls and vibrates and reduce noise, and uniform force.Utilize hollow elastic ball body, arc panel and high viscosity
The effect of liquid can absorb, decay vibration, and the spherical structure of hollow elastic ball body itself can be realized the vibration to different directions
It is dynamic effectively to absorb and offset, and the effect of high viscosity liquid can obtain broadband vibration isolating effect.Using buffer bar
Body and horizontal plate body, the spring body of bottom are not only able to realize the absorption and decaying of vertical motion, and can be realized and work as ship
Occur also to be can be avoided when rolling because the rigidity of moment rocks the mesh that generating equipment and mounting platform bracket damage caused by power
, it can adapt to impact resistance, and the high hollow elastic sphere of structural stability can equally play vertical vibration force and subtract
Slow and negative function, and the accessory plate body being arranged between adjacent damper unit can increase vertical auxiliary cushion effect,
Under the action of high viscosity liquid, the effectively transmitting of dampening of vibration energy and noise.It is easy for installation, improve ship equipment
Anti-vibration performance and sound insulation property extend the service life of ship equipment.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is overlooking structure diagram of the invention；
Fig. 3 is the overall structure enlarged drawing of damper mechanism；
Fig. 4 is the schematic enlarged-scale view of damper unit；
Fig. 5 is the overlooking structure diagram of damper unit；
Fig. 6 is the usage state diagram of damper mechanism；
Fig. 7 is usage state diagram of the invention.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is described in further details the present invention；
As shown in Fig. 1,2,3,4,5,6,7, a kind of marine generator device systems vibration and noise reducing device, including one be placed in ship
The mounting platform bracket 1 of the oceangoing ship generator bay bilge is provided with one for disposing the plate of generating equipment 5 on mounting platform bracket 1
Body 6 is provided with the exciting force for generating generating equipment 5 that one is used to support plate body 6 in the mounting platform bracket 1 and decays
With the damper mechanism 7 of absorption, which includes the lower rectangular frame being fixedly connected with the marine generator cabin bilge
2 and the upper rectangular frame 3 above lower rectangular frame 2, connect between lower rectangular frame 2 and upper rectangular frame 3
It is connected to the column 4 for more being served only for support upper rectangular frame 2, is respectively arranged with use at four angles in upper rectangular frame 3
In the shell 10 that the horizontal inclined plate 8 of Auxiliary support plate body 6, the damper mechanism 7 have closing inner chamber 9 including one, closing inner chamber 9
It is filled with high viscosity liquid 11.The cross section of the shell 10 can be cylindrical or square.In the upper portion side wall of shell 10
It is provided with the liquid injection pipe 12 for the filling high viscosity liquid 11 into closing inner chamber 9 being connected with closing inner chamber 9, in shell 10
Lower sides on be provided be connected with closing inner chamber 9 for the high viscosity liquid 11 in closing inner chamber 9 to be discharged
The drain pipe 13 of replacement.
The buffering body of rod 14 for upwardly extending and stretching out shell 10 is provided in closing inner chamber 9, at the top of shell 10
Offering one allows to buffer the adjustment hole 15 that the body of rod 14 stretches out, and the aperture of adjustment hole 15 is greater than the outer diameter of the buffering body of rod 14, in shell
The top of body 10 is around the circumferential elastic sealing film 16 being provided with for sealing adjustment hole 15 of the buffering body of rod 14, closing inner chamber 9
Bottom be provided with the horizontal plate body 17 that is fixedly connected of bottom end of one with the buffering body of rod 14, at the bottom of horizontal plate body 17 and shell 10
Multiple groups are installed for providing the spring body 18 of axial elasticity support force, in closing inner chamber 9, edge to the buffering body of rod 14 between portion
The axis direction of the buffering body of rod 14 is disposed with multiple be used for buffer bar between horizontal plate body 17 and the top of shell 10
Body 14 provides the damper unit 19 of radial cushion effect, and to ensure to reach maximum shock attenuation result, damper unit 19 is all immersed in
In high viscosity liquid 11, the support plate for being used to stablize Supporting plate 6 being connected with plate body 6 is provided at the top of the buffering body of rod 14
20.The mounting hole 21 being adapted to support plate 20 is offered on horizontal inclined plate 8, can flexibly to be swung convenient for support plate 20, peace
The aperture for filling hole 21 is greater than the diameter of support plate 20, and the top of support plate 20 stretches out mounting hole 21 and is higher than the upper of horizontal inclined plate 8
Surface.
Damper unit 19 includes the hollow elastic ball body 22 being fixed on outside the buffering body of rod 14, along hollow elastic ball body 22
Horizontal axis direction, the external circumferential of hollow elastic ball body 22 be symmetrically arranged with four groups for by high viscosity liquid 11 to sky
Heart elastic sphere 22 applies the arc panel 23 of radial cushion effect, between 22 surface of each arc panel 23 and hollow elastic ball body respectively
It is formed with buffer gap 24, each arc panel 23 is fixed by fixed link 25 and the inner wall of shell 10 respectively.In order to ensure radial slow
Impulse force can reach maximization, and arc panel 23 is identical as the radius of curvature on 22 surface of hollow elastic ball body.In adjacent vibration damping list
Be provided between member 19 be fixedly connected with the buffering body of rod 14 for providing the axial auxiliary for assisting cushion effect to the buffering body of rod 14
Plate body 26, the auxiliary plate body 26 are arranged vertically with the axis for buffering the body of rod 14.
Certainly, the above description is not a limitation of the present invention, and the present invention is also not limited to the example above, the art
Those of ordinary skill, within the essential scope of the present invention, the variations, modifications, additions or substitutions made all should belong to the present invention
Protection scope.
Claims (8)
1. a kind of marine generator device systems vibration and noise reducing device, the mounting platform for being placed in the marine generator cabin bilge including one
Bracket is provided with one for disposing the plate body of generating equipment, it is characterised in that: the mounting platform branch on mounting platform bracket
The damper mechanism that the exciting force for generating generating equipment that one is used to support plate body is decayed and absorbed is provided in frame, this subtracts
Vibration mechanism includes a shell with closing inner chamber, and a buffer bar for upwardly extending and stretching out shell is provided in closing inner chamber
Body, one is offered at the top of the shell allows to buffer the adjustment hole that the body of rod stretches out, and the aperture of adjustment hole is greater than the buffering body of rod
Outer diameter is circumferentially provided with the elastic sealing film for sealing adjustment hole, the closing around the buffering body of rod at the top of shell
The bottom of inner cavity is provided with a horizontal plate body being fixedly connected with the bottom end of the buffering body of rod, between horizontal plate body and housing bottom
Multiple groups are installed for providing the spring body of axial elasticity support force to the buffering body of rod, in the closing inner chamber, along buffer bar
The axis direction of body is disposed with multiple for providing radial buffering to the buffering body of rod between horizontal plate body and case top
The damper unit of power is filled with the high viscosity liquid for all submerging damper unit in the closing inner chamber.
2. marine generator device systems vibration and noise reducing device according to claim 1, it is characterized in that: the damper unit
Including the hollow elastic ball body being fixed on outside buffer bar body, along the horizontal axis direction of hollow elastic ball body, in hollow elasticity
The external circumferential of sphere is symmetrically arranged with four groups for hollow elastic ball body applying radial direction cushion effect by high viscosity liquid
Arc panel, is respectively formed with buffer gap between each arc panel and hollow elastic ball body surface face, and each arc panel leads to respectively
The inner wall for crossing fixed link and shell is fixed.
3. marine generator device systems vibration and noise reducing device according to claim 1, it is characterized in that: in adjacent vibration damping
The auxiliary plate body being used for the axial auxiliary cushion effect of buffering body of rod offer being fixedly connected with the buffering body of rod is provided between unit,
The auxiliary plate body is arranged vertically with the axis for buffering the body of rod.
4. marine generator device systems vibration and noise reducing device according to claim 1, it is characterized in that: the buffering body of rod
Top be provided be connected with plate body for stablizing the support plate of Supporting plate.
5. marine generator device systems vibration and noise reducing device according to claim 1, it is characterized in that: the shell is upper
The liquid injection pipe for the filling high viscosity liquid into closing inner chamber being connected with closing inner chamber is provided on portion's side wall, in shell
Lower sides on be provided be connected with closing inner chamber for closing inner chamber medium-high viscosity liquid to be carried out discharge replacement
Drain pipe.
6. marine generator device systems vibration and noise reducing device according to claim 2, it is characterized in that: the arc panel with
The radius of curvature in hollow elastic ball body surface face is identical.
7. marine generator device systems vibration and noise reducing device according to claim 4, it is characterized in that: the mounting platform
Bracket includes the lower rectangular frame being fixedly connected with the marine generator cabin bilge and the top above lower rectangular frame
Rectangular frame is connected between lower rectangular frame and upper rectangular frame and is served only for the vertical of support upper rectangular frame more
Column is separately provided for the horizontal inclined plate of Auxiliary support plate body at four angles in upper rectangular frame, in horizontal inclined plate
On offer the mounting hole being adapted to the support plate, the aperture of the mounting hole is greater than support plate, and the top of support plate is stretched out
Mounting hole and the upper surface for being higher than horizontal inclined plate.
8. marine generator device systems vibration and noise reducing device according to claim 1, it is characterized in that: the cross of the shell
Section is cylindrical or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811655165.7A CN109764079B (en) | 2018-12-27 | 2018-12-27 | Vibration and noise reduction device for ship generator equipment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811655165.7A CN109764079B (en) | 2018-12-27 | 2018-12-27 | Vibration and noise reduction device for ship generator equipment system |
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| Publication Number | Publication Date |
|---|---|
| CN109764079A true CN109764079A (en) | 2019-05-17 |
| CN109764079B CN109764079B (en) | 2020-12-15 |
Family
ID=66453267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811655165.7A Active CN109764079B (en) | 2018-12-27 | 2018-12-27 | Vibration and noise reduction device for ship generator equipment system |
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| Country | Link |
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| CN (1) | CN109764079B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113623353A (en) * | 2021-08-10 | 2021-11-09 | 安徽工程大学 | Multi-degree-of-freedom high-frequency vibration damping device and vibration damping method thereof |
| CN114658798A (en) * | 2022-02-24 | 2022-06-24 | 中船澄西船舶修造有限公司 | Frequency modulation damping device and method for mounting marine auxiliary machinery equipment |
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| CN114658798B (en) * | 2022-02-24 | 2023-12-26 | 中船澄西船舶修造有限公司 | Frequency modulation damping device and damping method for installation of marine auxiliary equipment |
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| CN109764079B (en) | 2020-12-15 |
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