CN106329876A - High axial bearing stepping linear motor - Google Patents
High axial bearing stepping linear motor Download PDFInfo
- Publication number
- CN106329876A CN106329876A CN201510393697.8A CN201510393697A CN106329876A CN 106329876 A CN106329876 A CN 106329876A CN 201510393697 A CN201510393697 A CN 201510393697A CN 106329876 A CN106329876 A CN 106329876A
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- China
- Prior art keywords
- angular contact
- high axial
- rotor
- electric motor
- linear electric
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- 238000010586 diagram Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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Abstract
The present invention relates to a high axial bearing stepping linear motor. The motor comprises a rotor, a four-point angular contact bearing that is mounted on both ends of the rotor, and a stator disposed opposite to the rotor. Compared with the prior art, the invention has the advantages of high axial load and long service life.
Description
Technical field
The present invention relates to a kind of motor, especially relate to a kind of high axial carrying step-by-step linear electric motor.
Background technology
Existing motor all uses traditional deep groove ball bearing to bear the moving loads of radial load.And
Deep groove ball bearing again because its simple in construction, can less by size design, thus apply well at stepping electricity
In the middle of machine.But the step-by-step linear electric motor converting rotational motion into linear motion at present increases sharply, this newly
The groundwork load of the motor of type loads for bi-directional axial, in this case, how to solve deep-groove ball axle
Bear the shortcoming that loaded capability is not enough, the most just become each producer's technical research to need solve primarily to ask
Topic.
Existing solution has two kinds: one is to be designed in motor by plain thrust bearing, although this way
Can promote the axial carrying capacity of system, but its shortcoming is motor can not bear radial load the most completely.Its
The typical embodiment of middle one, employing nut is in the structure of motor internal, and uses plane bearing.Another kind of allusion quotation
The embodiment of type, employing nut is in the structure of outside motor, and uses plane bearing.
Also having a kind of way is by double row angular contact design bearing to motor, bears energy promoting bi-directional axial load
Power, but the shortcoming of this way is to need to dispose double-row bearing in motor simultaneously, needs to take the longest axial space,
So that the power density of motor declines to a great extent.The typical embodiment of one of which, uses nut at motor internal
Structure, and use double row angular contact bearing.Another kind of typical embodiment, uses nut at outside motor
Structure, and use double row angular contact bearing.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and a kind of high axial carrying is provided
Step-by-step linear electric motor.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of high axial carrying step-by-step linear electric motor, it is characterised in that including:
Rotor；
4 angular contact bearings, are arranged on two ends of rotor portion；
Stator, is oppositely arranged with rotor.
Preferably, 4 described angular contact bearings are provided with one, two or four.
Preferably, 4 described angular contact bearings include that outer ring, inner ring and ball, described outer ring are located at inner ring
Outside, described ball is arranged between outer ring and inner ring.
Preferably, described outer ring and inner ring are equipped with the arcuate groove rolled for ball.
Preferably, 4 described angular contact bearings are single-groove four angular contact bearing.
Preferably, 4 described angular contact bearings are double raceway angular contact bearings.
Preferably, 4 described angular contact bearings are outer fissure four angular contact bearing.
Preferably, described rotor is the rotor of band nut.
Preferably, described rotor is the rotor of band screw rod.
Compared with prior art, the invention have the advantages that
1) axial load born is high, and the axial load can born compared to tradition step-by-step linear electric motor improves 3
Times or more than.
2) last a long time under same axial load, make this step-by-step linear electric motor reach tradition step-by-step linear electric motor
5 times of life-span or more than.
3) power of motor density can do height, compared under equal length, uses the motor of plane bearing,
The big I of thrust promotes more than 10%.
4) end-play and gap are less, substantially increase the linear positions.
5) motor volume can be designed to less, be applied to the occasion higher to space requirement.
Accompanying drawing explanation
Fig. 1 is the electric machine structure schematic diagram of embodiment 1；
Fig. 2 is the electric machine structure schematic diagram of embodiment 2；
Fig. 3 is the structural representation of 4 angular contact bearings.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
As it is shown in figure 1, high axial carrying step-by-step linear electric motor, including: the rotor 1 of band nut；4 angular contact
Bearing 2 (having another name called four-point contact ball), is arranged on two ends of rotor portion；Stator 3, is oppositely arranged with rotor.
4 described angular contact bearings 2 are provided with one, two or four.4 described angular contact bearings 2
Including outer ring, inner ring and ball, described outer ring is located at outside inner ring, and described ball is arranged on outer ring and inner ring
Between.
The arcuate groove rolled for ball it is equipped with on described outer ring and inner ring.4 described angular contact bearings
For single-groove four angular contact bearing, double raceway angular contact bearing or outer fissure four angular contact bearing.
Embodiment 2
As in figure 2 it is shown, the rotor 4 that described rotor is band screw rod, remaining is with embodiment 1.
Claims (9)
1. one kind high axial carrying step-by-step linear electric motor, it is characterised in that including:
Rotor；
4 angular contact bearings, are arranged on two ends of rotor portion；
Stator, is oppositely arranged with rotor.
One the most according to claim 1 high axial carrying step-by-step linear electric motor, it is characterised in that described
4 angular contact bearings be provided with one, two or four.
One the most according to claim 1 high axial carrying step-by-step linear electric motor, it is characterised in that described
4 angular contact bearings include that outer ring, inner ring and ball, described outer ring are located at outside inner ring, described ball
It is arranged between outer ring and inner ring.
One the most according to claim 3 high axial carrying step-by-step linear electric motor, it is characterised in that described
Outer ring and inner ring on be equipped with for ball roll arcuate groove.
One the most according to claim 1 high axial carrying step-by-step linear electric motor, it is characterised in that described
4 angular contact bearings be single-groove four angular contact bearing.
One the most according to claim 1 high axial carrying step-by-step linear electric motor, it is characterised in that described
4 angular contact bearings be double raceway angular contact bearings.
One the most according to claim 1 high axial carrying step-by-step linear electric motor, it is characterised in that described
4 angular contact bearings be outer fissure four angular contact bearing.
One the most according to claim 1 high axial carrying step-by-step linear electric motor, it is characterised in that described
The rotor that rotor is band nut.
One the most according to claim 1 high axial carrying step-by-step linear electric motor, it is characterised in that described
The rotor that rotor is band screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510393697.8A CN106329876A (en) | 2015-07-06 | 2015-07-06 | High axial bearing stepping linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510393697.8A CN106329876A (en) | 2015-07-06 | 2015-07-06 | High axial bearing stepping linear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106329876A true CN106329876A (en) | 2017-01-11 |
Family
ID=57727440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510393697.8A Pending CN106329876A (en) | 2015-07-06 | 2015-07-06 | High axial bearing stepping linear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106329876A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201018348Y (en) * | 2007-03-04 | 2008-02-06 | 中国北车集团永济电机厂 | Vertical type fan generator for engine |
| CN101341347A (en) * | 2006-01-13 | 2009-01-07 | 日本精工株式会社 | Ball bearings for the main shaft rotating part of machine tools and main shaft rotating devices of machine tools using the ball bearings |
| CN101873051A (en) * | 2009-04-27 | 2010-10-27 | 上海鸣志电器有限公司 | Stepping linear motor |
| CN203104181U (en) * | 2012-11-29 | 2013-07-31 | 南阳防爆集团股份有限公司 | Motor bearing structure of coal mine heading machine |
| CN203788077U (en) * | 2014-02-12 | 2014-08-20 | 海顿直线电机(常州)有限公司 | Novel bearing supporting structure of linear stepping motor |
| CN104321231A (en) * | 2012-04-20 | 2015-01-28 | 爱皮加特股份公司 | Bearing arrangement in an axial drive |
| CN204835888U (en) * | 2015-07-06 | 2015-12-02 | 上海鸣志电器股份有限公司 | Step -by -step linear electric motor is born to high axial |
-
2015
- 2015-07-06 CN CN201510393697.8A patent/CN106329876A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101341347A (en) * | 2006-01-13 | 2009-01-07 | 日本精工株式会社 | Ball bearings for the main shaft rotating part of machine tools and main shaft rotating devices of machine tools using the ball bearings |
| CN201018348Y (en) * | 2007-03-04 | 2008-02-06 | 中国北车集团永济电机厂 | Vertical type fan generator for engine |
| CN101873051A (en) * | 2009-04-27 | 2010-10-27 | 上海鸣志电器有限公司 | Stepping linear motor |
| CN104321231A (en) * | 2012-04-20 | 2015-01-28 | 爱皮加特股份公司 | Bearing arrangement in an axial drive |
| CN203104181U (en) * | 2012-11-29 | 2013-07-31 | 南阳防爆集团股份有限公司 | Motor bearing structure of coal mine heading machine |
| CN203788077U (en) * | 2014-02-12 | 2014-08-20 | 海顿直线电机(常州)有限公司 | Novel bearing supporting structure of linear stepping motor |
| CN204835888U (en) * | 2015-07-06 | 2015-12-02 | 上海鸣志电器股份有限公司 | Step -by -step linear electric motor is born to high axial |
Non-Patent Citations (1)
| Title |
|---|
| 李永海: "《机电一体化系统设计》", 31 March 2012 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170111 |