CN201966705U - Bonding rotor for automobile steering system - Google Patents
Bonding rotor for automobile steering system Download PDFInfo
- Publication number
- CN201966705U CN201966705U CN2010206737220U CN201020673722U CN201966705U CN 201966705 U CN201966705 U CN 201966705U CN 2010206737220 U CN2010206737220 U CN 2010206737220U CN 201020673722 U CN201020673722 U CN 201020673722U CN 201966705 U CN201966705 U CN 201966705U
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- CN
- China
- Prior art keywords
- magnet
- axle sleeve
- rotor
- steering system
- bonding
- 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.)
- Expired - Fee Related
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model discloses a bonding rotor for an automobile steering system. The bonding rotor comprises a shaft sleeve, wherein a rotor shaft passes through the inner part of the shaft sleeve; a magnet is sleeved on the outer side wall of the shaft sleeve; and a plurality of projections extending in the axial direction are arranged on the inner side wall of the magnet at intervals. As the projections are arranged on the bonding rotor, the magnet and the shaft sleeve cannot deviate from the center of the magnet, thereby enabling the magnet to be well bonded with the shaft sleeve. According to the utility model, the magnet and the projections are formed by powder through one-time pressing, so that the bonding rotor has a simple structure and is very convenient to process; and compared with the prior art, the manufacturing cost is not increased.
Description
Technical field
The utility model relates to a kind of automobile steering system bonding rotor.
Background technology
Automobile steering system comprises that with the bonding rotor armature spindle, described rotor axle sleeve are equipped with axle sleeve, and described axle sleeve lateral wall is arranged with magnet.Described armature spindle and axle sleeve adopt interference fit, with hydraulic press or pneumatic compression devices compacting assembling.The assembling of described magnet and axle sleeve is adopted the thermosetting cement water to bond mutually and is bonded together after being heating and curing.Need resist very high torsional forces in electric motor starting moment, so whether the rotor bonding has enough adhesions most important.Also need under the condition that extraneous temperature, humidity change, still can continue, stably work simultaneously; Need in the environment that road jolts, guarantee safe in utilization; Need the life cycle that is complementary with automotive service life.Length that we can say the useful life of rotor depends on bonding technology to a great extent.Magnet and axle sleeve have firm adhesion could guarantee that magnet can not come off from axle sleeve.Reach a conclusion through overtesting: fit clearance and adhesion between magnet and the axle sleeve have direct correlation, and fit clearance is excessive or too smallly all can influence adhesion, and just the distribution of glue between magnet and axle sleeve affects the size of adhesion.When current automobile steering system uses the bonding rotor bonding, situation shown in Figure 2 appears easily, the centre deviation of magnet and axle sleeve is very big, will cause very close to each other or too small on one side, the excesssive gap phenomenon of another side has reduced both adhesions and may take place in use that magnet and axle sleeve break away from mutually.
Summary of the invention
The purpose of this utility model provides a kind of axle sleeve and the bonding reliable automobile steering system of magnet bonding rotor.
For realizing this purpose, the utility model is solved by following technical proposals:
A kind of automobile steering system comprises axle sleeve with the bonding rotor, is equipped with armature spindle in the described axle sleeve, and described axle sleeve lateral wall is arranged with magnet, and the madial wall of described magnet is arranged at intervals with some the projectioies of stretching along axial edge.
In the technique scheme, described projection is provided with 6, and uniformly at intervals on the madial wall of magnet.
In the technique scheme, the cross section of described projection is arc.
In the technique scheme, described projection and magnet are structure as a whole.
The utility model compared with prior art has following beneficial effect:
1) the utility model so just can guarantee that magnet and axle sleeve and magnet center do not depart from owing to be provided with projection, so just can be so that magnet and axle sleeve have good adhesive effect.
2) the utility model magnet and projection are once suppressed by powder and to be formed, and be simple in structure, process very convenient, compared with prior art not raising of manufacturing cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model, wherein in order to observe conveniently, the gap of magnet and axle sleeve is amplified processing.
Fig. 2 is an automobile steering system bonding rotor structure schematic diagram in the prior art.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Referring to Fig. 1, a kind of automobile steering system comprises axle sleeve 1 with the bonding rotor, and described axle sleeve 1 is the cylinder of hollow, also is provided with 8 on the described axle sleeve 1 along axially extended through hole 10, and these 8 through holes 10 are uniformly at intervals on described axle sleeve 1.
Be equipped with armature spindle 5 in the described axle sleeve 1, and the internal diameter of described axle sleeve 1 also is that described axle sleeve 1 is assembled together with the mode of armature spindle 5 with interference fit less than the external diameter of armature spindle 5.
Described axle sleeve 1 lateral wall is arranged with magnet 3, and the madial wall of described magnet 3 is arranged at intervals with 6 projectioies 30 of stretching along axial edge, and these 6 projectioies 30 are uniformly at intervals on the madial wall of magnet 3.Because the gap between projection 30 and axle sleeve 1 and the magnet 3 is very little, observe cooperating of magnet 3 and axle sleeve 1 for directly perceived, during drawing, to protruding 30 and axle sleeve 1 and magnet 3 between the gap amplify processing.Described protruding 30 cross section is arc.In other words, described protruding 30 cross section is that circle cuts most of circular arc rest parts.
Described protruding 30 with magnet 3 by press forming of powder, so just need not to increase workload.Described protruding 30 bar number is not limited in 6, can make adjustment according to actual needs, as long as deviation does not appear in their center when guaranteeing that these projectioies 30 can guarantee axle sleeve 1 with magnet 3 assemblings.
During assembling, armature spindle 5 is penetrated in the axle sleeve 1, then axle sleeve 1 is encased in the magnet 3, between the madial wall of axle sleeve 1 lateral wall and magnet 3, smear glue then with hydraulic press or pneumatic compression devices compacting assembling.Because magnet 3 madial walls are provided with projection 30, when installing to magnet 3 covers on the axle sleeve 1, magnet 3 and axle sleeve 1 will be separated out several gaps by 30 of projectioies, so just can make glue evenly between the madial wall that spreads upon axle sleeve 1 lateral wall and magnet 3.Axle sleeve 1 and magnet 3 are bonded together reliably.It is excessive, promptly very close to each other or too small on one side effectively to have avoided in the prior art centre deviation of magnet 3 and axle sleeve 1 to occur easily, the excesssive gap phenomenon of another side.
Though the utility model is described by preferred embodiment, yet the utility model is not limited to embodiment as described herein, also comprises various changes and the variation done under the situation that does not break away from the utility model scope.The magnet of any kind can be used this design, as ferrite neodymium iron boron SmCo or the like, no matter be sintering or bonding, wait to or do not wait to magnet.
Claims (4)
1. an automobile steering system is with the bonding rotor, comprise axle sleeve (1), be equipped with armature spindle (5) in the described axle sleeve (1), described axle sleeve (1) lateral wall is arranged with magnet (3), it is characterized in that the madial wall of described magnet (3) is arranged at intervals with some the projectioies (30) of stretching along axial edge.
2. automobile steering system as claimed in claim 1 is characterized in that with the bonding rotor described projection (30) is provided with 6, and uniformly at intervals on the madial wall of magnet (3).
3. automobile steering system as claimed in claim 1 or 2 is characterized in that with the bonding rotor cross section of described projection (30) is arc.
4. automobile steering system as claimed in claim 3 is characterized in that with the bonding rotor described projection (30) is structure as a whole with magnet (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206737220U CN201966705U (en) | 2010-12-22 | 2010-12-22 | Bonding rotor for automobile steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206737220U CN201966705U (en) | 2010-12-22 | 2010-12-22 | Bonding rotor for automobile steering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201966705U true CN201966705U (en) | 2011-09-07 |
Family
ID=44529257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206737220U Expired - Fee Related CN201966705U (en) | 2010-12-22 | 2010-12-22 | Bonding rotor for automobile steering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201966705U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107578880A (en) * | 2017-09-25 | 2018-01-12 | 青岛金立磁性材料有限公司 | A kind of modeling magnet ring for automobile ESP electronic power assist steering |
-
2010
- 2010-12-22 CN CN2010206737220U patent/CN201966705U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107578880A (en) * | 2017-09-25 | 2018-01-12 | 青岛金立磁性材料有限公司 | A kind of modeling magnet ring for automobile ESP electronic power assist steering |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20131222 |