CN102138025A - Vibration control structure - Google Patents
Vibration control structure Download PDFInfo
- Publication number
- CN102138025A CN102138025A CN2009801339797A CN200980133979A CN102138025A CN 102138025 A CN102138025 A CN 102138025A CN 2009801339797 A CN2009801339797 A CN 2009801339797A CN 200980133979 A CN200980133979 A CN 200980133979A CN 102138025 A CN102138025 A CN 102138025A
- Authority
- CN
- China
- Prior art keywords
- vibration damping
- hollow portion
- coccoid
- vibration
- viscoelastic body
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/30—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Vibration Prevention Devices (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Disclosed is a vibration control structure that can control the generation of vibration and noise from structures, such as motors, which are affected by electromagnetic force. The vibration control structure is a cylindrical structure that receives the effects of electromagnetic force, wherein a hollow area (4) is formed in a cylindrical body (2a) that configures this structure, and a vibration damping material (5) is built into the hollow area (4). The hollow area (4) is also a plurality of hollow areas (4) of roughly the same shape, which are formed at a roughly uniform spacing in the circumferential direction of the cylindrical body (2), and the vibration damping material (5) is configured from a plurality of granular bodies (6), or a plurality of granular bodies (6) and viscoelastic bodies (7).
Description
Technical field
The stator that the present invention relates to use in the motor etc. is subjected to the vibration damping structure of the tubular structure thing of electromagnetic force influence.
Background technique
In motor, can use stator, be provided with in pairs as the stator of the fixed block of motor etc. with as the rotor of revolving part is inevitable.This stator itself is the structure that does not move, and is rotated with its rotor that is provided with in pairs, and the unbalanced meeting of electromagnetic force that therefore is accompanied by the rotation of rotor causes from motor generation vibration or noise.
About at the damping technology of conduct, various exploitations have been carried out from the rotor rotated of the main cause of motor generation vibration or noise.But, do not obtain exploitation about suitable damping technology at present at stator.
An example as suppressing to produce from structure the damping technology of vibration or noise has proposed the various damping technologies that utilize coccoid.The technology that patent documentation 1 is put down in writing is effectively to suppress the technology of the radiation sound of body surfaces, pipe arrangement, connecting shaft cover etc. from turbo fluid machine.In Fig. 6 and Fig. 7 of patent documentation 1, a mode of execution as its propagation attenuation mechanism discloses the technology of having enclosed granular attenuating material in the blank part in cylindrical pipe.
In addition, the technology that patent documentation 2 is put down in writing is in bogie of railway car, suppresses the vibration that the imbalance by drive system causes, reduces the technology of the internal car noise of following vibration.Wherein, the periphery of the fastening that is connected with the chassis framework at the connector element to car body is disclosed, the technology of the container of the coccoid that being provided with has packed into is made of iron system or plumbous based material.
In addition, the technology put down in writing of patent documentation 3 be about have high damping can the sheet damping material and the technology of vibration damping panel.Wherein, disclose about the powder body layer that will absorb vibrational energy and enclosed with mobilizable state that the sheet damping material of inner space of hollow shape sheet material and this sheet damping material attach on the panel faces such as sheet metal, plank and the technology of the vibration damping panel that forms.
Patent documentation 1: Japanese publication communique: 8-93693
Patent documentation 2: Japanese publication communique: 2005-289370
Patent documentation 3: Japanese publication communique: 2001-12543
Summary of the invention
The present invention In view of the foregoing realizes, purpose is to provide a kind of vibration damping structure that can suppress to produce from the structure of the motor that has electromagnetic force influence etc. vibration or noise.
Vibration damping structure of the present invention is the vibration damping structure that is subjected to the tubular structure thing of electromagnetic force influence, it is characterized in that, is formed with hollow portion in the cylindrical body that constitutes described structure, is built-in with damping material in described hollow portion.
Preferred described hollow portion is a plurality of hollow portions of the roughly the same shape that roughly equally spaced forms on the circumferencial direction of described cylindrical body.
Preferred described hollow portion is formed on and is positioned at the low position of Magnetic flux density of more leaning on the position of outer circumferential side than the thickness direction central authorities of described cylindrical body.
Preferred described damping material is a plurality of coccoids.
Preferred described damping material is a plurality of coccoids and viscoelastic body, and described coccoid roughly is scattered in the described viscoelastic body and built-in being filled in the described hollow portion equably.
Built-in described coccoid and the quality of described viscoelastic body and the density of the coccoid in volume and the described viscoelastic body in the preferred described hollow portion, roughly the same in all hollow portions.
Preferred described coccoid is formed by nonmagnetic substance.
Preferred described viscoelastic body is any in silicone oil, silicone rubber, the silicone adhesive.
(invention effect)
According to vibration damping structure of the present invention,,, also can suppress to produce vibration or noise from structure even taking place under the unbalanced situation of electromagnetic force by the damping effect of damping material built-in in the hollow portion.
According to vibration damping structure of the present invention, because the hollow portion of the roughly the same shape of built-in a plurality of coccoids roughly equally spaced is disposed at the full week of cylindrical body, therefore, can balance well and reliably bring into play damping effect, thereby can suppress vibration or generating noise more reliably.And, the distortion of field that in the hollow portion damping material is set and causes can be suppressed at inferior limit.
According to vibration damping structure of the present invention and since can will be built-in the hollow portion of a plurality of coccoids be configured in the lower position of Magnetic flux density, therefore, be under the situation of stator at structure, can not damage reliable inhibition of performance ground of motor and vibrate or generating noise.
According to vibration damping structure of the present invention, owing to a plurality of coccoids built-in in the hollow portion collide each other or produce damping effect with the interior wall friction of hollow portion, therefore, even it is unbalanced and produced under the situation of vibration that electromagnetic force takes place, also can suppress vibration or generating noise in structure.
According to vibration damping structure of the present invention, it is unbalanced and when having produced vibration that electromagnetic force takes place in structure, can in viscoelastic body, propagate because of the stress that the vibration of coccoid produces in viscoelastic body, bring into play vibration damping by interfering mutually with the vibration of other coccoid.Thus, can suppress to produce vibration or noise reliably.
According to vibration damping structure of the present invention, because built-in coccoid and the quality of viscoelastic body and the density of the coccoid in volume and the viscoelastic body in the hollow portion, roughly the same in all hollow portions, therefore, damping effect can be brought into play more reliably, thereby vibration or generating noise can be suppressed more reliably.
According to vibration damping structure of the present invention, because coccoid is formed by nonmagnetic substance, therefore, be under the situation of stator at structure, can not damage the performance of motor, and can suppress vibration or generating noise more reliably.
Vibration damping structure of the present invention as viscoelastic body, can not be subjected to influence of temperature change ground reliably to bring into play damping effect by in the silicone oil, silicone rubber or the silicone adhesive that adopt viscoelastic property and can change according to temperature variation hardly any.
Description of drawings
Fig. 1 is illustrated in a mode of execution under the situation that has adopted vibration damping structure of the present invention in the stator, is the stereogram of the stator after end face is cut.
Fig. 2 is the plan view that the motor behind the stator of Fig. 1 has been assembled in expression.
Embodiment
Below, based on mode of execution shown in the drawings, the present invention is described in further detail.Wherein, as the structure that has electromagnetic force influence of object of the present invention, be that the present invention will be described for example with the stator 1 that constitutes motor.
Fig. 1 is illustrated in a mode of execution under the situation that has adopted vibration damping structure of the present invention in the stator, and Fig. 2 is the schematic representation that the motor behind the stator of Fig. 1 has been assembled in expression.
As shown in Figure 1, in the yoke portion 2 of stator 1, be formed with hollow portion 4.Hollow portion 4 alignment arrangements equally spaced roughly on the circumferencial direction of yoke portion 2.The section shape of these hollow portions 4 is roughly the same shape.In addition, wish that hollow portion 4 is formed on than the central authorities of the thickness direction of yoke portion 2 more by the position of outer circumferential side.By more forming hollow portion 4 by the position of outer circumferential side in central authorities than the thickness direction of yoke portion 2, position configuration hollow portion 4 that can Magnetic flux density is lower in stator 1.In addition, in Fig. 1, is illustrated as hollow portion 4 and exposes, but this is because the figure that Fig. 1 is a end face with stator 1 after cutting that in fact hollow portion 4 does not expose at the end face of stator 1 at the end face of stator.
In this hollow portion 4, be built-in with damping material 5.Damping material 5 can only be formed by a plurality of coccoids 6, perhaps also can be the mixture of a plurality of coccoids 6 and viscoelastic body 7.The situation of having represented the latter among Fig. 1 and Fig. 2, that is, damping material 5 is mixtures of a plurality of coccoids 6 and viscoelastic body 7.In addition, damping material 5 is not to be necessary for this two kinds of structures, can only be formed by viscoelastic body 7, perhaps can be formed by other damping material yet.
Having only coccoid 5 to be built under the situation of hollow portion 4, need the built-in coccoid 5 in certain interval ground be set according to can't help coccoid 5 with the mode of filling up fully in the hollow portion 4.By certain interval is set, coccoid 5 can be in hollow portion 4 internal vibrations, thereby can bring into play damping effect.In addition, consider, wish that the quality of coccoid 5 built-in in each hollow portion 4 is identical in all hollow portions 4 with volume from the damping efficiency aspect.
On the other hand, built-in damping material 5 is under the situation of mixture of a plurality of coccoids 6 and viscoelastic body 7 in hollow portion 4, damping material 5 seamlessly need be filled in the hollow portion 4.In this case, roughly be evenly dispersed in the viscoelastic body 7, thereby the biasing of coccoid 6 can not take place in hollow portion 4 by making coccoid 6.Under with these damping material 5 built-in situations about being filled in the hollow portion 4, if vibration transfer is to stator 1, then the stress that produces in viscoelastic body 7 because of the vibration of coccoid 6 can be propagated in viscoelastic body 7, brings into play vibration damping by interfering mutually with the vibration of other coccoid 6.Thus, can suppress reliably to produce vibration or noise from stator 1.
Under the damping material 5 built-in situations about being filled in the hollow portion 4 that will constitute by the mixture of a plurality of coccoids 6 and viscoelastic body 7, consider from the damping efficiency aspect, wish the quality of coccoid built-in in the hollow portion 46 and viscoelastic body 7 and the coccoid 6 in volume and the viscoelastic body 7 density, also have the shape of each coccoid 6, identical in all hollow portions 4.
In addition, in situation that damping material 5 is only formed by a plurality of coccoids 6 be under the situation of mixture of a plurality of coccoids 6 and viscoelastic body 7, wish that all coccoid 6 is formed by nonmagnetic substance.This is because coccoid 6 under situation about being formed by magnetic materials such as iron powders, may exert an influence to the performance of whirler or generator.As the nonmagnetic substance that forms coccoid 6, can illustration want the material of composition with ceramic main.In addition, the shape of wishing coccoid 6 is spheroids.
On the other hand, be under the situation of mixture of a plurality of coccoids 6 and viscoelastic body 7 at damping material 5, as viscoelastic body 7, can adopt high viscosity (100,000～1,000, the viscosity that 000cst (centistokes) or its are above) oil, aqueous rubber, by the crosslinked elastomer that flows etc. that suppressed.Wherein, suitable silicone oil, silicone rubber or the silicone adhesive that adopts viscoelastic property (complex modulus) can change according to temperature hardly.And then, the winter hardiness glue that the most suitable use also can not be hardened under-50 ℃.In addition, in order to adjust elasticity coefficient, a plurality of bubbles can be set in viscoelastic body.
More than, with reference to specific mode of execution the present invention is had been described in detail, but to those skilled in the art, obviously can under the situation that does not break away from the spirit and scope of the present invention, carry out various changes and correction.The application is based on the Japanese patent application of on October 7th, 2008 application (special be willing to 2008-260726), and its content is here cited with as reference.
Symbol description:
The 1-stator;
The 2a-cylindrical body;
2-yoke portion;
3-tooth portion;
The 4-hollow portion;
The 5-damping material;
The 6-coccoid;
The 7-viscoelastic body;
The 8-coiling;
The 9-rotor.
Claims (8)
1. a vibration damping structure is the vibration damping structure that is subjected to the tubular structure thing of electromagnetic force influence, it is characterized in that,
In the cylindrical body that constitutes described structure, be formed with hollow portion, in described hollow portion, be built-in with damping material.
2. vibration damping structure according to claim 1 is characterized in that,
Described hollow portion is a plurality of hollow portions of the roughly the same shape that roughly equally spaced forms on the circumferencial direction of described cylindrical body.
3. vibration damping structure according to claim 1 and 2 is characterized in that,
Described hollow portion is formed on and is positioned at the low position of Magnetic flux density of more leaning on the position of outer circumferential side than the thickness direction central authorities of described cylindrical body.
4. vibration damping structure according to claim 1 is characterized in that,
Described damping material is a plurality of coccoids.
5. vibration damping structure according to claim 1 is characterized in that,
Described damping material is a plurality of coccoids and viscoelastic body, and described coccoid roughly is scattered in the described viscoelastic body and built-in being filled in the described hollow portion equably.
6. vibration damping structure according to claim 5 is characterized in that,
Built-in coccoid and the quality of viscoelastic body and the density of the coccoid in volume and the described viscoelastic body in the described hollow portion, roughly the same in all hollow portions.
7. according to each described vibration damping structure in the claim 4～6, it is characterized in that,
Described coccoid is formed by nonmagnetic substance.
8. according to claim 5 or 6 described vibration damping structures, it is characterized in that,
Described viscoelastic body is any in silicone oil, silicone rubber, the silicone adhesive.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008260726A JP2010090967A (en) | 2008-10-07 | 2008-10-07 | Vibration control structure |
| JP2008-260726 | 2008-10-07 | ||
| PCT/JP2009/067437 WO2010041672A1 (en) | 2008-10-07 | 2009-10-06 | Vibration control structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102138025A true CN102138025A (en) | 2011-07-27 |
Family
ID=42100622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801339797A Pending CN102138025A (en) | 2008-10-07 | 2009-10-06 | Vibration control structure |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2010090967A (en) |
| CN (1) | CN102138025A (en) |
| WO (1) | WO2010041672A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005852B (en) * | 2010-12-08 | 2012-10-03 | 沈阳工业大学 | Device for suppressing noise and vibration of radial flux motor |
| JP6988041B1 (en) * | 2020-11-27 | 2022-01-05 | デザインパーツ株式会社 | Vibration absorber |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11223246A (en) * | 1998-02-05 | 1999-08-17 | Unisia Jecs Corp | Rotary damper |
| CN1274660A (en) * | 1999-05-20 | 2000-11-29 | 株式会社日立制作所 | Rail vehicle |
| JP2001206221A (en) * | 2000-01-27 | 2001-07-31 | Hitachi Ltd | Rolling stock |
| CN1598350A (en) * | 2004-09-09 | 2005-03-23 | 重庆大学 | Magnetic current changeing dumper of integrated related speed sensing function and method of adaptive damping |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03122417U (en) * | 1990-03-24 | 1991-12-13 | ||
| JP3723669B2 (en) * | 1997-08-04 | 2005-12-07 | 日本電産株式会社 | Rotating balancer and related technologies |
-
2008
- 2008-10-07 JP JP2008260726A patent/JP2010090967A/en active Pending
-
2009
- 2009-10-06 CN CN2009801339797A patent/CN102138025A/en active Pending
- 2009-10-06 WO PCT/JP2009/067437 patent/WO2010041672A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11223246A (en) * | 1998-02-05 | 1999-08-17 | Unisia Jecs Corp | Rotary damper |
| CN1274660A (en) * | 1999-05-20 | 2000-11-29 | 株式会社日立制作所 | Rail vehicle |
| JP2001206221A (en) * | 2000-01-27 | 2001-07-31 | Hitachi Ltd | Rolling stock |
| CN1598350A (en) * | 2004-09-09 | 2005-03-23 | 重庆大学 | Magnetic current changeing dumper of integrated related speed sensing function and method of adaptive damping |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010090967A (en) | 2010-04-22 |
| WO2010041672A1 (en) | 2010-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103104539B (en) | Vacuum pump | |
| CN112567096B (en) | Directional vibration control apparatus for single eccentric compactor drum | |
| WO2010000958A3 (en) | Method for predicting the dynamic behaviour of an aircraft structure | |
| CN110219935B (en) | Acoustic metamaterial vibration reduction structure for shafting and piping system | |
| CN101120184A (en) | Vibration damping bracket | |
| JP2000046103A (en) | Damping member for motor | |
| WO2010041671A1 (en) | Damping structure | |
| WO2010117069A1 (en) | Vibration damping structure | |
| CN102138025A (en) | Vibration control structure | |
| CN205584474U (en) | Electro -acoustic transducer device, receiver and audio equipment | |
| CN111448745B (en) | Rotor for an electric machine | |
| CN103032324B (en) | Screw compressor | |
| CN101673991A (en) | Stator and axial flux permanent magnet gear | |
| CN102392877B (en) | Tune damper with opposing torque action | |
| JP2014035079A (en) | Damper for input shaft of transmission | |
| JP5598084B2 (en) | Elastic wedge damper for rotating shaft | |
| CN111052562A (en) | Rotor and motor | |
| JP2008278550A (en) | Vibration isolation motor | |
| JP2007306767A (en) | Motor and electric power steering device therewith | |
| CN103032325B (en) | Screw compressor | |
| CN102168675B (en) | Spial compressor | |
| CN211175200U (en) | Acoustic metamaterial vibration reduction structure for shafting and piping system | |
| CN206468775U (en) | A kind of gear | |
| CN2930073Y (en) | Shock-proof structure for motor | |
| KR20110102644A (en) | Device for controlling vibration of hollow shaft in using magneto-rheological elastomer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110727 |