CN202550785U - Low-noise composite damping shell of medium power generator - Google Patents
Low-noise composite damping shell of medium power generator Download PDFInfo
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- CN202550785U CN202550785U CN2012201787491U CN201220178749U CN202550785U CN 202550785 U CN202550785 U CN 202550785U CN 2012201787491 U CN2012201787491 U CN 2012201787491U CN 201220178749 U CN201220178749 U CN 201220178749U CN 202550785 U CN202550785 U CN 202550785U
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- shell
- composite damping
- housing
- composite
- axial support
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Abstract
The utility model relates to a low-noise composite damping shell of a medium power generator. A sound absorbing material layer is arranged on the inner surface of a shell, and is fixed with the inner surface of the shell through a porous steel plate, composite damping axial supporting ribs for supporting a stator iron core are distributed on baffle plates on two ends of the middle of the shell, and an intermediate baffle plate for enhancing the supporting of the shell is arranged on the middle of the shell. The composite damping axial supporting ribs comprise round bar steel and composite damping materials. The shell is of a structure of a plurality of radial baffle plates and a plurality of axial support ribs, a composite material and steel composite structure is adopted in the axial support ribs for supporting the stator iron core in the middle of the shell to absorb a certain vibration energy; and a hollow axial support mechanism is adopted in the axial support ribs which do not support the stator iron core on two ends of the shell. Therefore, the total weight is lightened, and a base has better rigidity, the purpose of actively isolating vibration is achieved; and meanwhile, a composite sound absorbing structure comprising a sound absorbing material and a porous plate is adopted in the shell, thus the purpose of reducing aerodynamic noise is achieved.
Description
Technical field
The utility model relates to generator in a kind of low vibration, the low noise, especially a kind of damping housing that is used for low vibration, low noise generator.
Background technology
Existing with in generator vibration acceleration and noise generally bigger, serious environment pollution also works the mischief to human body.Electromagnetic vibration noise is the main vibration source of generator.At present; The vibration and noise reducing of generator also rests on from vibration source and takes measures; Owing to receive the restriction of generator performance and volume weight, cause that the reduction of main vibration source-electro-magnetic exciting force of vibration noise is very limited, therefore; Reduce the influence of electromagnetic vibration noise, must take measures from vibration transfer path to complete machine oscillation.The damping housing that needs a kind of middle generator.
Summary of the invention
The utility model is for the vibration isolation measure of taking the initiative from vibration transfer path suppresses the generator vibration, realizes vibration and noise reducing, and a kind of middle generator low noise composite damping housing is provided.
For realizing above-mentioned purpose; The technical scheme of the utility model is: generator low noise composite damping housing in a kind of; The hollow shaft that comprises the distribution of housing two ends is characterized in to brace rod: shell inner surface is arranged one deck sound-absorbing material, and fixes through stephanoporate steel plate and shell inner surface; Be distributed with support stator composite damping axial support muscle unshakable in one's determination on the dividing plate at two ends, housing middle part, the housing middle part is provided with the central dividing plate that is used to strengthen support housing.
Composite damping axial support muscle is made up of round steel and composite damping material, and the round steel diameter twines one deck composite damping material on the round steel surface between 18～25mm, and its thickness is between 15～20mm.
Composite damping axial support muscle is fixed on the dividing plate at housing middle part through bolt and packing ring, and composite damping axial support muscle quantity is 8～12.
The beneficial effect of the utility model is:
The utility model has been established a kind of novel low noise composite damping housing, and this housing has adopted polylith radially dividing plate and Duo Gen axial support muscle structure.Wherein, the axial support muscle of support stator iron core has adopted the composite construction of composite material+steel at the housing middle part, to absorb certain vibrational energy; The axial support muscle at non-support stator position unshakable in one's determination has adopted hollow axial support structure at the housing two ends.So both alleviate gross weight, and made support have rigidity preferably again, reached the purpose of active vibration isolation.Simultaneously in housing, adopt the compound sound-absorption structural of forming by sound-absorbing material and porous plate, reached the purpose that reduces aerodynamic noise.
Vibration has good inhibitory effect to the low noise composite damping housing of the utility model to generator, and the generator airborne noise is had assimilation effect preferably.
Description of drawings
Fig. 1 is the structure office cutaway view of the utility model;
Fig. 2 is along the cutaway view of B-B among Fig. 1;
Fig. 3 is a composite damping axial support muscle structural representation.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Like Fig. 1, shown in 2, the middle generator low noise composite damping housing of the utility model is made up of to parts such as brace rod 4, composite damping axial support muscle 2, wallboard, footing end plate 8, central dividing plate 7, dividing plate 10, top board 9, hollow shaft.
The housing main structure is welded by end plate 8, central dividing plate 7, dividing plate 10, top board 9, footing and footing muscle, and hollow shaft is distributed in the housing rear and front end to brace rod 4, and composite damping axial support muscle 2 is distributed on two endplates 10 of housing middle part.Arrange one deck sound-absorbing material 1 in shell inner surface, it is fixed by stephanoporate steel plate 3.The housing middle part is provided with the central dividing plate 7 that is used to strengthen support housing.
As shown in Figure 3, composite damping axial support muscle 2 is made up of round steel 5 and composite damping material 6, and round steel 5 diameters twine one deck composite damping material 6 on round steel 5 surfaces through special process between 18～25mm, and its thickness is between 15～20mm.The two ends of this brace rod 2 are fixed on the dividing plate 10 at housing two ends through bolt and packing ring, should guarantee that 2 of this brace rods contact with dividing plate 10, all do not contact with other positions.In whole shell structure, the quantity of this brace rod 2 is between 8～12.
Claims (3)
1. generator low noise composite damping housing in a kind comprises hollow shaft that the housing two ends distribute to brace rod (4), and it is characterized in that: said shell inner surface is arranged one deck sound-absorbing material (1), and fixes through stephanoporate steel plate (3) and shell inner surface; Be distributed with support stator composite damping axial support muscle (2) unshakable in one's determination on the dividing plate (10) at two ends, housing middle part, the housing middle part is provided with the central dividing plate that is used to strengthen support housing.
2. generator low noise composite damping housing in according to claim 1; It is characterized in that: said composite damping axial support muscle (2) is made up of round steel (5) and composite damping material (6); Round steel (5) diameter is between 18～25mm; Twine one deck composite damping material (6) on round steel (5) surface, its thickness is between 15～20mm.
3. generator low noise composite damping housing in according to claim 1 and 2; It is characterized in that: the two ends of said composite damping axial support muscle (2) are fixed on the dividing plate (10) at two ends, housing middle part through bolt and packing ring, and composite damping axial support muscle (2) quantity is 8～12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201787491U CN202550785U (en) | 2012-04-25 | 2012-04-25 | Low-noise composite damping shell of medium power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201787491U CN202550785U (en) | 2012-04-25 | 2012-04-25 | Low-noise composite damping shell of medium power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202550785U true CN202550785U (en) | 2012-11-21 |
Family
ID=47171352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201787491U Expired - Lifetime CN202550785U (en) | 2012-04-25 | 2012-04-25 | Low-noise composite damping shell of medium power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202550785U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624132A (en) * | 2012-04-25 | 2012-08-01 | 中国船舶重工集团公司第七0四研究所 | Low-noise composite damping shell of medium-sized power generator |
| CN105594105A (en) * | 2013-10-04 | 2016-05-18 | 西门子能源公司 | Generator spring bar enhancement for core support system |
| CN109973458A (en) * | 2017-12-28 | 2019-07-05 | 信孚产业股份有限公司 | Reduced noise pneumatic motor |
-
2012
- 2012-04-25 CN CN2012201787491U patent/CN202550785U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624132A (en) * | 2012-04-25 | 2012-08-01 | 中国船舶重工集团公司第七0四研究所 | Low-noise composite damping shell of medium-sized power generator |
| CN105594105A (en) * | 2013-10-04 | 2016-05-18 | 西门子能源公司 | Generator spring bar enhancement for core support system |
| CN105594105B (en) * | 2013-10-04 | 2018-12-21 | 西门子能源公司 | Generator spring for iron core support system enhances |
| CN109973458A (en) * | 2017-12-28 | 2019-07-05 | 信孚产业股份有限公司 | Reduced noise pneumatic motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151118 Address after: 200031 Xuhui District, Hengshan Road, No. 10, Patentee after: SHANGHAI CSIC SHIP PROPULSION EQUIPMENT CO., LTD. Address before: 200031 Xuhui District, Hengshan Road, No. 10, Patentee before: No.704 Institute of China Shipbuilding Industry Corporation |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |