CN201918831U - Improved structure for vibration reduction and noise reduction of motor rotor - Google Patents
Improved structure for vibration reduction and noise reduction of motor rotor Download PDFInfo
- Publication number
- CN201918831U CN201918831U CN2010206933688U CN201020693368U CN201918831U CN 201918831 U CN201918831 U CN 201918831U CN 2010206933688 U CN2010206933688 U CN 2010206933688U CN 201020693368 U CN201020693368 U CN 201020693368U CN 201918831 U CN201918831 U CN 201918831U
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- Prior art keywords
- rotor
- vibration
- rotation axis
- bearing
- motor
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Abstract
The utility model discloses an improved structure for vibration reduction and noise reduction of a motor rotor, which is arranged between two bearings arranged in an upper rotor field spider and a lower rotor field spider, forms a motor together with a stator. The motor comprises a rotor and a rotation axis. The rotor and the rotation axis are in a sleeve connection. One end of the rotation axis penetrates through a bearing end face arranged in the lower rotor field spider and is disposed in the lower rotor field spider, and the other end of the rotation axis penetrates through the bearing end face arranged in the upper rotor field spider and forms an output shaft. The improved structure for vibration reduction and noise reduction of the motor rotor further comprises a vibration-reduction device. The vibration-reduction device is arranged between the bottom supporting inner surface of the lower rotor field spider and the bearing of the lower rotor field spider, and comprises a retaining ring which is in a sleeve connection with the rotation axis. One side of the retaining ring is abutted to the bearing end face, and the other side of the retaining ring is abutted to the bottom supporting inner surface of the lower rotor field spider. The improved structure for vibration reduction and noise reduction of the motor rotor has the advantages of being small in the quantity of materials, low in cost, quick in assembly, capable of being mounted in position in one step, and simplifying operational process in assembly.
Description
Technical field
The utility model relates to a kind of small-power or miniature inductive motor, relates in particular to a kind of vibration and noise reducing structure-improved of motor rotor.
Background technology
Motor is commonly called as " motor " (transliteration of motor), is meant a kind of calutron of realizing converting electric energy to mechanical energy according to the law of electromagnetic induction.Generally comprise stator winding, rotor, rotation axis and support, and stator is installed on the support regularly, rotor is installed in the stator and is articulated on the support, stator winding is by certain mode coiled coil with electric wire, produce induced electromotive force behind the coil electricity and serve as and revolve electric field, and then on rotor coil, produce the torque actuated rotor rotation.
The rotor of general motor directly is socketed on the rotation axis, and rotation axis directly is articulated on the support, in the process of motor running, because what use is AC power, motor coil produces alternating magnetic field with alternating current, and rotor rotated is produced axially this alternating magnetic field or radially pulsating is moving, whole rotor can collide bracket bearing after producing vibration, if it is too big that the free axis of rotor in motor scurried, the inertia of the back and forth play of rotor when operation is just big so, and then the vibrating noise of motor is just big; If the free axis of rotor in motor scurried too little or do not had, the low voltage starting of this motor will compare difficulty so, grating also can increase, even can have influence on the performance and the useful life of motor, general solution is to remain on a reasonable range by the front and back back-up ring being installed and by the quantity of adjusting packing ring the axle of motor being scurried, because accumulated tolerance, motor has some difficulty when producing in batches, waste time and energy.
Please refer to Fig. 1, shown the vibration and noise reducing structure-improved of the motor rotor of prior art.The vibration and noise reducing structure-improved 100 ' of the motor rotor of prior art is installed on, form motor with stator (figure does not show) between the two bearings 201 ' in the lower rotor part support 200 ', generally comprise rotor 1 ' and rotation axis 2 ', described rotor 1 ' is fixed with described rotation axis 2 ' socket, the end face that described rotation axis 2 ' is articulated on the end face of described bearing 201 ' and an end passes described bearing 201 ' forms output shaft, for vibration and noise reducing, described rotor with on, articulated section between the two bearings 201 ' in the lower rotor part support 200 ' is installed the axial vibration realization vibration damping purpose that vibration absorber 3 ' absorbs rotor respectively, this vibration absorber is generally back-up ring, rubber sheet gasket or felt gasket etc., though can reach certain effectiveness in vibration suppression, but, the vibration and noise reducing structure-improved 100 ' of the motor rotor of prior art has the following disadvantages: 1, need described rotor with on, articulated section between the two bearings 201 ' in the lower rotor part support 200 ' is installed the radial vibration realization vibration damping purpose that vibration absorber absorbs rotor respectively, when installing, need install the vibration absorber between the bearing 201 ' in rotor and the lower rotor part support 200 ' earlier, and then the vibration absorber between the bearing 201 ' in installation rotor and the upper rotor part support 200 ', the control difficulty, and be unfavorable for quick for installation; 2. reach the vibration damping purpose because need to install double vibration absorber, waste material, cost is higher.
Therefore, need a kind of vibration and noise reducing structure-improved of improved motor rotor to overcome above-mentioned difficulties.
The utility model content
The purpose of this utility model is to provide a kind of vibration and noise reducing structure-improved of motor rotor, materials are few, cost is low, and it is quick for installation, it is good to settle location and installation at one go, operating procedure when simplifying assembling, and can reduce the vibration that produces because of rotor rotation effectively and self is caused damage and reduce noise.
To achieve these goals, the utility model provides a kind of vibration and noise reducing structure-improved of motor rotor, be installed on, form motor with stator between the two bearings in the lower rotor part support, comprise rotor and rotation axis, described rotor and described rotation axis socket are fixed, one end of described rotation axis passes the bearing face in the described lower rotor part support and places in the described lower rotor part support, the other end forms output shaft after passing the interior bearing face of described upper rotor part support, the vibration and noise reducing structure-improved of described motor rotor also comprises vibration absorber, described vibration absorber is arranged between the bottom support inner surface and the bearing in the described lower rotor part support of described lower rotor part support, comprise back-up ring, described shield ring sleeve is connected on the described rotation axis and one side is conflicted with the end face of described bearing, and the bottom support inner surface of another side and described lower rotor part support is conflicted.
Preferably, described vibration absorber also comprises upper and lower packing ring, described upper and lower packing ring all is socketed on the described rotation axis and the one side of described back-up ring is conflicted by the end face of described upper gasket and described bearing, and the another side of described back-up ring is conflicted by the bottom support inner surface of described lower gasket and described lower rotor part support.
Preferably, stepped, the I-shaped or cylindrical structural of described back-up ring.
Preferably, described upper and lower packing ring is wear-resisting plastic washers.
Preferably, be fixed in described upper bracket or lower carriage inside under each described bearing effect by malthoid circle, bearing shell fragment and gland.
Compared with prior art, because the utility model is only by installing a described vibration absorber between the bearing in the bottom of described lower rotor part support support inner surface and described lower rotor part support, utilize described back-up ring and last, lower gasket is socketed on the described rotation axis, when described rotor rotation, in the rotation process, because the alternating current that uses, make stator produce alternating magnetic fields, therefore, make described rotor discontinuity and produce unsettled rotation, described rotor can produce axial vibration along described rotation axis in the end face of described bearing, thereby driving described rotation axis vibrates vertically, but since described back-up ring and on, fixing and keeping out of lower gasket acts on down, limiting described rotation axis vibrates vertically, thereby prevent the end face of the described bearing of the direct bump of described rotor and damage described rotor, play the effect of vibration damping, simultaneously, because on described, under the cushioning effect of lower gasket, described back-up ring reduced the impact of the bottom support inner surface of described bearing face or described rotor field spider after the vibration of described rotation axis was cushioned, the impact noise that produces reduces, and plays noise reduction effect to a certain degree.As seen, the vibration and noise reducing structure-improved materials of the utility model motor rotor are few, cost is low, and quick for installation, and it is good to settle location and installation at one go, operating procedure when simplifying assembling, and can reduce the vibration that produces because of rotor rotation effectively and self is caused damage and reduce noise.
By following description also in conjunction with the accompanying drawings, it is more clear that the utility model will become, and these accompanying drawings are used to explain embodiment of the present utility model.
Description of drawings
Fig. 1 is the structure improved structural representation of vibration and noise reducing of the motor rotor of prior art.
Fig. 2 is the structure improved structural representation of the vibration and noise reducing of the utility model motor rotor.
Embodiment
With reference now to accompanying drawing, describe embodiment of the present utility model, similar assembly label is represented similar assembly in the accompanying drawing.As mentioned above, the utility model provides a kind of vibration and noise reducing structure-improved of motor rotor, and materials are few, cost is low, and quick for installation, it is good to settle location and installation at one go, and can reduce the vibration that produces because of rotor rotation effectively and self is caused damage and reduce noise.
As shown in Figure 2, the vibration and noise reducing structure-improved 100 of the utility model motor rotor is installed on, lower rotor part support 200, two bearings 201 in 300, form motor with the stator (not shown) between 301 end faces, comprise rotor 1 and rotation axis 2, described rotor 1 is fixed with described rotation axis 2 sockets, one end 21 of described rotation axis 2 passes bearing 301 end faces in the described lower rotor part support 300 and places in the described lower rotor part support 300, the other end 22 forms output shaft after passing bearing 201 end faces in the described upper rotor part support 200, described on, lower rotor part support 200,300 pass through connector 400 (as screw, bolt etc.) be connected and fixed.Be fixed in described upper rotor part support 200 or lower rotor part support 300 inside under each described bearing 201,301 effect by malthoid circle 201a, bearing shell fragment 201b and gland 201c.
The vibration and noise reducing structure-improved 100 of described motor rotor also comprises vibration absorber 3, described vibration absorber 3 is arranged between the bottom support inner surface 302 and the bearing 301 in the described lower rotor part support 300 of described lower rotor part support 300, comprise back-up ring 31, described back-up ring 31 is socketed on the described rotation axis 2 and one side is conflicted with the end face of described bearing 301, and the bottom support inner surface 302 of another side and described lower rotor part support 300 is conflicted.
The preferably, vibration absorber 3 in the present embodiment also comprises upper gasket 32 and lower gasket 33, described upper gasket 32 and lower gasket 33 all are socketed on the described rotation axis 2 and the one side of described back-up ring 31 is conflicted by the described upper gasket 32 and the end face of described bearing 301, and the another side of described back-up ring 31 is conflicted by the described lower gasket 33 and the bottom support inner surface 302 of described lower rotor part support 300.Be that described upper gasket 32 is socketed on the described rotation axis 2 and one side is conflicted with described back-up ring 31, the end face of another side and described bearing 301 is conflicted; Described lower gasket 33 is socketed on the described rotation axis 2 and one side is conflicted with described back-up ring 31, and the bottom support inner surface 302 of another side and described lower rotor part support 300 is conflicted.
The preferably, described back-up ring 31 stepped, I-shaped or cylindrical structurals.
The preferably, described upper gasket 32 and lower gasket 33 are wear-resisting plastic washers, use ganoid plastic material to make.
In conjunction with shown in Figure 2, during motor operations, stator energising back produces magnetic field, described rotor 1 is rotated, in the rotation process, because the alternating current that uses, make stator produce alternating magnetic fields, therefore, make described rotor 1 discontinuity and produce unsettled rotation, described rotor 1 can produce axial vibration along described rotation axis 2 in the end face of described bearing 201, thereby driving described rotation axis 2 vibrates vertically, drive described back-up ring 31 and upper gasket 32 during vibration, lower gasket 33, make described back-up ring 31 promote described upper gaskets 32 and clash into the end face of described bearing 301, but under the restriction of described bearing 301, can't further move, thereby limiting described rotation axis 2 vibrates vertically, thereby prevent the directly described bearing 201 of bump of described rotor 1,301 end face and damage described rotor 1, play the effect of vibration damping, simultaneously, because described upper gasket 32, under the cushioning effect of lower gasket 33, the impact that the vibration of described rotation axis 2 is cushioned the bottom support inner surface 302 of back 31 pairs of described bearing faces of described back-up ring or described rotor field spider 300 reduces, and the impact noise of generation reduces, and plays noise reduction effect to a certain degree.
The rotary principle of the rotor 1 that the vibration and noise reducing structure-improved 100 of the utility model motor rotor is involved and the structure of stator and rotor 1 is well known to those of ordinary skill in the art, no longer is described in detail at this.
Above disclosed only is preferred embodiments of the present utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (5)
1. the vibration and noise reducing structure-improved of a motor rotor, be installed on, form motor with stator between the two bearings in the lower rotor part support, comprise rotor and rotation axis, described rotor and described rotation axis socket are fixed, one end of described rotation axis passes the bearing face in the described lower rotor part support and places in the described lower rotor part support, the other end forms output shaft after passing the interior bearing face of described upper rotor part support, it is characterized in that: the vibration and noise reducing structure-improved of described motor rotor also comprises vibration absorber, described vibration absorber is arranged between the bottom support inner surface and the bearing in the described lower rotor part support of described lower rotor part support, comprise back-up ring, described shield ring sleeve is connected on the described rotation axis and one side is conflicted with the end face of described bearing, and the bottom support inner surface of another side and described lower rotor part support is conflicted.
2. the vibration and noise reducing structure-improved of motor rotor as claimed in claim 1, it is characterized in that: described vibration absorber also comprises upper and lower packing ring, described upper and lower packing ring all is socketed on the described rotation axis and the one side of described back-up ring is conflicted by the end face of described upper gasket and described bearing, and the another side of described back-up ring is conflicted by the bottom support inner surface of described lower gasket and described lower rotor part support.
3. the vibration and noise reducing structure-improved of motor rotor as claimed in claim 1 is characterized in that: stepped, the I-shaped or cylindrical structural of described back-up ring.
4. the vibration and noise reducing structure-improved of motor rotor as claimed in claim 1, it is characterized in that: described upper and lower packing ring is wear-resisting plastic washers.
5. the vibration and noise reducing structure-improved of motor rotor as claimed in claim 1 is characterized in that: be fixed in described upper rotor part support or lower rotor part internal stent under each described bearing effect by malthoid circle, bearing shell fragment and gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206933688U CN201918831U (en) | 2010-12-31 | 2010-12-31 | Improved structure for vibration reduction and noise reduction of motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206933688U CN201918831U (en) | 2010-12-31 | 2010-12-31 | Improved structure for vibration reduction and noise reduction of motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201918831U true CN201918831U (en) | 2011-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206933688U Expired - Lifetime CN201918831U (en) | 2010-12-31 | 2010-12-31 | Improved structure for vibration reduction and noise reduction of motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201918831U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035290A (en) * | 2010-12-31 | 2011-04-27 | 东莞国亮电机有限公司 | Vibration absorption and de-noising improved structure of motor rotor |
| CN105262268A (en) * | 2015-11-24 | 2016-01-20 | 广东威灵电机制造有限公司 | Rotor assembly and oil bearing motor |
| CN106877552A (en) * | 2017-04-24 | 2017-06-20 | 威灵（芜湖）电机制造有限公司 | Motor casing main body, motor casing and motor |
-
2010
- 2010-12-31 CN CN2010206933688U patent/CN201918831U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102035290A (en) * | 2010-12-31 | 2011-04-27 | 东莞国亮电机有限公司 | Vibration absorption and de-noising improved structure of motor rotor |
| CN105262268A (en) * | 2015-11-24 | 2016-01-20 | 广东威灵电机制造有限公司 | Rotor assembly and oil bearing motor |
| CN106877552A (en) * | 2017-04-24 | 2017-06-20 | 威灵（芜湖）电机制造有限公司 | Motor casing main body, motor casing and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110803 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |