CN106849478A - A kind of pivot structure and motor rotor component and motor - Google Patents
A kind of pivot structure and motor rotor component and motor Download PDFInfo
- Publication number
- CN106849478A CN106849478A CN201710213857.5A CN201710213857A CN106849478A CN 106849478 A CN106849478 A CN 106849478A CN 201710213857 A CN201710213857 A CN 201710213857A CN 106849478 A CN106849478 A CN 106849478A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- inner ring
- pivot structure
- section
- ring section
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/086—Structural association with bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
- H02K7/088—Structural association with bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly radially supporting the rotor directly
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1737—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention provides a kind of pivot structure and motor rotor component and motor, wherein pivot structure includes：Rotating shaft body, the wherein one section inner ring of formation bearing of rotating shaft body, the section is inner ring section, also include the outer ring being sheathed in inner ring section, the at least two circle rolling elements between inner ring section and outer ring, and roller holder, inner ring section, outer ring, rolling element and roller holder form bearing.The pivot structure is formed in one, can effectively reduce and eliminate in rotation process due to there is friction between rotating shaft and bearing, and there is gap between rotating shaft and bearing, it is easily caused the unstable of axis of rotation, consequently, it is possible to causing vibration frequency too high and the defect of damage equipment, thus adapt to more high-revolving rotation.
Description
Technical field
The present invention relates to technical field of motors, and in particular to a kind of pivot structure and motor rotor component and motor.
Background technology
Motor is very fast in China's speed of development, is commonly used in the equipment higher to rotation speed requirements.
The rotor assembly of motor of the prior art generally comprises the rotating shaft being rotatably provided on casing, is arranged on rotating shaft
The movable vane wheel of one end and the magnet steel of the rotating shaft other end is arranged on, wherein rotating shaft is by a pair of intervals point in rotating shaft
The bearing of cloth and the bearing holder (housing, cover) being set in outside this pair of bearings are rotatably arranged on casing, and between two bearings, axle
Bearing sleeve sets the spring that two ends offset with two bearings with the gap portion of axle.
The motor of prior art rubs in high-speed rotation due to existing between bearing and rotating shaft, and between rotating shaft and bearing
There is gap, be easily caused the unstable of axis of rotation, consequently, it is possible to cause vibration frequency too high and damage equipment, therefore not
Adapt to superfast rotation.
The content of the invention
Therefore, the technical problem to be solved in the present invention is to overcome to have friction between bearing of the prior art and rotating shaft,
And there is gap between rotating shaft and bearing, the unstable of axis of rotation is easily caused, consequently, it is possible to causing vibration frequency too high
And damage equipment, therefore the defect of superfast rotation is not adapted to, so as to provide a kind of pivot structure and motor rotor component
And motor.
In order to solve the above technical problems, a kind of pivot structure of the invention, including rotating shaft body, it is characterised in that state and turn
The wherein one section inner ring of formation bearing of shaft body, the section is inner ring section, also including the outer ring being sheathed in the inner ring section, with
And at least two circle rolling elements between inner ring section and the outer ring, and roller holder pearl, the inner ring section,
Outer ring, rolling element and roller holder form bearing.
The diameter of the part positioned at the inner ring section left and right sides of the rotating shaft body is respectively less than the straight of the inner ring section
Footpath.
The two ends end of the bearing is additionally provided with the dust cap in gap between the embedded outer ring and the inner ring.
Also include being close to two dust rings that bearing two ends end face is set respectively.
The rolling element is ball.
The ball is provided with two circles.
A kind of motor rotor component, including magnet steel, movable vane wheel, with above-mentioned pivot structure, the magnet steel, the movable vane
Wheel is arranged on the rotating shaft body, and is respectively at the both sides of the inner ring section.
The magnet steel and the rotating shaft body circumferentially gluing connection.
For interference fit is connected between the movable vane wheel and the rotating shaft body.
A kind of motor, with above-mentioned motor rotor component.
Technical solution of the present invention, has the following advantages that：
1. the pivot structure that the present invention is provided, including rotating shaft body, wherein one section formation bearing of the rotating shaft body
Inner ring, the section is inner ring section, also including the outer ring that is sheathed in inner ring section and positioned at inner ring section and the outer ring
Between at least two circle rolling elements, roller holder, inner ring section, outer ring and ball, roller holder form axle
Hold, the pivot structure is formed in one, can effectively reduce and eliminate due to there is friction between rotating shaft and bearing in rotation process, with
And there is gap between rotating shaft and bearing, be easily caused the unstable of axis of rotation, consequently, it is possible to cause vibration frequency too high and
The defect of damage equipment, thus adapt to more high-revolving rotation.
2. the present invention provide pivot structure, the rotating shaft body positioned at the inner ring section left and right sides part it is straight
Footpath is respectively less than the diameter of the inner ring section, can be easy to be installed to rotating shaft in casing, and can limit other parts in rotating shaft
Axial movement, make rotation more stablize.
3. the pivot structure that the present invention is provided, also including being close to two dust rings that bearing two ends end face is set respectively,
Dust ring described in two and the dust cap, outer ring, inner ring section form sealing structure, can prevent dust enter the outer ring with it is described
In the space that inner ring section is formed, so as to ensure the normal work of ball.
4. the pivot structure that the present invention is provided, the ball is provided with two circles, can limit the radial direction and axial float of rotating shaft, subtracts
Few rotational resistance, can be such that rotation process more stablizes.
5. a kind of motor rotor component that the present invention is provided, including magnet steel, movable vane wheel, with described pivot structure, institute
Magnet steel, the movable vane wheel are stated on the rotating shaft body, and is respectively at the both sides of the inner ring section, the rotor group
Part overall structure is simple and reliable, is easy to assembly, and the rotating speed that can be reached is high.
6. a kind of motor rotor component that the present invention is provided, the magnet steel and the rotating shaft body circumferentially gluing connection,
Rational air gap flux density can be formed between the magnet steel and the rotating shaft body, it is ensured that rotating shaft normally rotates.
7. a kind of motor rotor component that the present invention is provided, is interference fit between the movable vane wheel and the rotating shaft body
Connection, the interference fit connection between the movable vane wheel and the rotating shaft body can prevent movable vane wheel caused when high speed rotates
Centrifugal force from rotating shaft so as to come off so as to cause danger.
8. a kind of motor that the present invention is provided, with described motor rotor component, the motor can rotate at a high speed.
Brief description of the drawings
In order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art, below will be to specific
The accompanying drawing to be used needed for implementation method or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the front view of the motor rotor component of offer in the first implementation method of the invention；
Description of reference numerals：
1- rotating shafts；2- dust rings；3- magnet steel；4- movable vane wheels；
11- inner rings section；12- balls；13- outer rings；14- dust caps；
41- holes
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify describe, rather than indicate imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
Two connections of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
As long as additionally, technical characteristic involved in invention described below different embodiments non-structure each other
Can just be combined with each other into conflict.
Embodiment 1 (implementation method of part)
A kind of specific embodiment of pivot structure as shown in figure, including rotating shaft body 1, the rotating shaft body 1
The wherein one section inner ring of formation bearing, the section is inner ring section 11, also including the outer ring 13 that is sheathed in inner ring section 11 and
At least two circle rolling elements between inner ring section 11 and the outer ring 13, and roller holder, the inner ring section
11st, outer ring 13, rolling element, and roller holder 12 forms bearing.It is preferred that the rolling element is ball 12.
Above-mentioned pivot structure is formed in one, in effectively reducing and eliminating rotation process in the rotating shaft compared to bearing holder (housing, cover)
Due to there is friction between rotating shaft and bearing, and there is gap between rotating shaft and bearing, be easily caused the unstable of axis of rotation, from
And may result in that vibration frequency is too high and the defect of damage equipment, thus adapt to more high-revolving rotation.
Specifically, the diameter of the part positioned at 11 left and right sides of inner ring section of the rotating shaft body 1 is respectively less than described
The diameter of inner ring section 11, can be easy to be installed to rotating shaft in casing, and can limit the axial movement of other parts in rotating shaft,
So that rotate more stablizing.
The two ends end of the bearing is additionally provided with the dust cap in gap between the embedded outer ring and the inner ring.
Specifically, the pivot structure also includes also including being close to the dust ring 2 that bearing two ends end face is set respectively.
Dust ring described in two forms sealing structure with the dust cap 14, outer ring 13, inner ring section 11, ball 12, can prevent dust from entering
In the space that the outer ring 13 is formed with inner ring section 11, so as to ensure the normal work of ball 12.
Specifically, dust ring described in two is elastic component, is tightly set on the rotating shaft body and only leans against the inner ring section
The position at two ends.
Specifically, when being commonly designed, preferably described ball 12 is provided with two circles, such setting can limit the radial direction of rotating shaft with
Axial float, reduces rotational resistance, and rotation process can be made more to stablize.
Further, the ball 12 is limited in the space that the inner ring section 11 is formed with outer ring section 13 by ball rack
In.
Embodiment 2
A kind of motor rotor component as shown in figure, including the pivot structure described in embodiment 1, also including magnet steel 3, move
Impeller 4, the magnet steel 3, movable vane wheel 4 are arranged on the rotating shaft body, and are respectively at the both sides of the inner ring section 11.
Specifically, the magnet steel 3 and the gluing connection of rotating shaft body, the magnet steel 3 are permanent magnet, can form rational
Air gap flux density, it is ensured that the normal operation of rotating shaft.
Specifically, the movable vane wheel 4 is connected with rotating shaft body interference fit, and the movable vane wheel 4 includes hole 41, the rotating shaft
At least a portion length of body is deep into the hole 41, can make the movable vane wheel 4 and the compact connection of rotating shaft body,
Ensure to be unlikely to during axis of rotation to cause the movable vane wheel 4 to depart from the rotating shaft body by centrifugal force is excessive, prevent hair
It is raw dangerous.
Embodiment 3
A kind of motor, with the motor rotor component described in embodiment 2, the motor can realize rotation at a high speed, reach as high as
200000 rpms.
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to the restriction of implementation method.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need and unable to be exhaustive to all of implementation method.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (10)
1. a kind of pivot structure, including rotating shaft body, it is characterised in that wherein one section formation bearing of the rotating shaft body it is interior
Circle, the section is inner ring section, also including the outer ring being sheathed in the inner ring section, between inner ring section and the outer ring
At least two circle rolling elements, and roller holder, the inner ring section, outer ring, rolling element and roller holder form axle
Hold.
2. pivot structure according to claim 1, it is characterised in that the rotating shaft body positioned at described inner ring section or so
The diameter of the part of both sides is respectively less than the diameter of the inner ring section.
3. pivot structure according to claim 1, it is characterised in that the two ends end of the bearing is additionally provided with embedded described
Dust cap between outer ring and the inner ring in gap.
4. pivot structure according to claim 3, it is characterised in that also set including being close to bearing two ends end face respectively
Two dust rings put.
5. pivot structure according to claim 1, it is characterised in that the rolling element is ball.
6. pivot structure according to claim 5, it is characterised in that the ball is provided with two circles.
7. a kind of motor rotor component, including magnet steel, movable vane wheel, it is characterised in that with any one of claim 1-6
Pivot structure, the magnet steel, the movable vane wheel are arranged on the rotating shaft body, and are respectively at the two of inner ring section
Side.
8. a kind of motor rotor component according to claim 7, it is characterised in that：The magnet steel and the rotating shaft body edge
Circumferential gluing connection.
9. a kind of motor rotor component according to claim 7 or 8, it is characterised in that：The movable vane wheel and the rotating shaft
For interference fit is connected between body.
10. a kind of motor, it is characterised in that with the motor rotor component described in claim any one of 7-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710213857.5A CN106849478A (en) | 2017-04-01 | 2017-04-01 | A kind of pivot structure and motor rotor component and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710213857.5A CN106849478A (en) | 2017-04-01 | 2017-04-01 | A kind of pivot structure and motor rotor component and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106849478A true CN106849478A (en) | 2017-06-13 |
Family
ID=59142310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710213857.5A Pending CN106849478A (en) | 2017-04-01 | 2017-04-01 | A kind of pivot structure and motor rotor component and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106849478A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711982A (en) * | 2018-07-06 | 2018-10-26 | 珠海格力电器股份有限公司 | A kind of motor rotor construction and its assembly method |
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| CN203412956U (en) * | 2013-08-05 | 2014-01-29 | 浙江亚科尔轴承有限公司 | Bearing |
| CN104283344A (en) * | 2014-05-28 | 2015-01-14 | 莱克电气股份有限公司 | Rotor and processing and assembling method thereof |
| CN204755600U (en) * | 2015-06-04 | 2015-11-11 | 泛科轴承集团有限公司 | Dustproof spherical outside surface ball bearing |
| CN105276000A (en) * | 2015-10-31 | 2016-01-27 | 江苏南田工机有限公司 | Variable-frequency motor bearing |
| CN106374671A (en) * | 2016-10-24 | 2017-02-01 | 宁波纽新克电机股份有限公司 | Rotor assembly of DC motor |
| CN205937457U (en) * | 2016-08-22 | 2017-02-08 | 温州天纳福汽车轴承股份有限公司 | Novel wheel hub bearing |
-
2017
- 2017-04-01 CN CN201710213857.5A patent/CN106849478A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203412956U (en) * | 2013-08-05 | 2014-01-29 | 浙江亚科尔轴承有限公司 | Bearing |
| CN104283344A (en) * | 2014-05-28 | 2015-01-14 | 莱克电气股份有限公司 | Rotor and processing and assembling method thereof |
| CN204755600U (en) * | 2015-06-04 | 2015-11-11 | 泛科轴承集团有限公司 | Dustproof spherical outside surface ball bearing |
| CN105276000A (en) * | 2015-10-31 | 2016-01-27 | 江苏南田工机有限公司 | Variable-frequency motor bearing |
| CN205937457U (en) * | 2016-08-22 | 2017-02-08 | 温州天纳福汽车轴承股份有限公司 | Novel wheel hub bearing |
| CN106374671A (en) * | 2016-10-24 | 2017-02-01 | 宁波纽新克电机股份有限公司 | Rotor assembly of DC motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711982A (en) * | 2018-07-06 | 2018-10-26 | 珠海格力电器股份有限公司 | A kind of motor rotor construction and its assembly method |
| CN108711982B (en) * | 2018-07-06 | 2024-05-28 | 珠海格力电器股份有限公司 | Motor rotor structure and assembly method thereof |
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