CN207490658U - A kind of outer rotor motor structure with pre-load nut - Google Patents
A kind of outer rotor motor structure with pre-load nut Download PDFInfo
- Publication number
- CN207490658U CN207490658U CN201721672192.6U CN201721672192U CN207490658U CN 207490658 U CN207490658 U CN 207490658U CN 201721672192 U CN201721672192 U CN 201721672192U CN 207490658 U CN207490658 U CN 207490658U
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- CN
- China
- Prior art keywords
- motor
- rotor
- load nut
- drive end
- bearing bracket
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- 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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- 230000036316 preload Effects 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model is a kind of outer rotor motor structure with pre-load nut, held including motor case, motor front axle held with electric motor back shaft, drive end bearing bracket, stator module, rotor assembly, shaft, wave pad is provided in the bearing chamber of drive end bearing bracket, pre-load nut is also provided with by tooling screw-in in drive end bearing bracket, electric motor back shaft holds and the first axle sleeve is provided between the rotor case of rotor assembly, and motor front axle is held is provided with the second axle sleeve between the transcapsidation of rotor assembly.It after the completion of the assembling of the utility model rotor, i.e., is assembled and disassembled as an entirety, operating is convenient, and production efficiency is high；Electrical machmary maintenance is convenient, such as flimsy bearing, individually disassembles, ressembles bearing, reduces the risk of association inventory disposal；It is convenient that motor adjustment is replaced, and lossless to disassemble, can install debugging repeatedly.
Description
Technical field
The utility model belongs to the technical field of the motor manufacturing, particularly relates to a kind of outer with pre-load nut
Rotor electric machine structure.
Background technology
Common outer-rotor structure as shown in Figure 1, being mainly made of rotor/stator/drive end bearing bracket etc., hold with before by motor front axle
End cap tight fit, Motor Shaft and fore bearing tight fit.The structure there are the problem of,（1）After the completion of motor assembling, Motor Shaft
With fore bearing tight fit, can not simply disassemble；（2）Once pressure is disassembled, fore bearing can damage, since fore bearing is fixed on
In drive end bearing bracket, stator is fixed on drive end bearing bracket, it is possible to create related to scrap；（3）The necessary tool locating of motor assembling process, tooling
Required precision is high；（4）Motor Shaft and fore bearing tight fit, shaft required precision is high, the influence of different sizes dress of close-fitting resultant force
The reliability matched；（5）Electrical machmary maintenance is difficult, and especially sample preparation stage debugging is difficult；（6）Motor once has bad generation, Wu Fazhen
Parts are replaced to property, increase association material scraps risk, reduces motor production yield；（7）Such as use clamp spring knot
Structure, jump-ring slot influence the intensity of Motor Shaft, the increase of off-axis risk.
Invention content
To solve the above-mentioned problems, the utility model provides a kind of outer rotor motor structure with pre-load nut, increases
Pre-load nut and axle sleeve, electrical machmary maintenance is convenient, and can install debugging repeatedly.
In order to achieve the above object, the utility model is achieved through the following technical solutions：
The utility model is a kind of outer rotor motor structure with pre-load nut, held including motor case, motor front axle and
Electric motor back shaft is held, drive end bearing bracket, stator module, rotor assembly, shaft, wave pad is provided in the bearing chamber of drive end bearing bracket, in front end
Pre-load nut is also provided with by tooling screw-in in lid, electric motor back shaft is held is provided with first axle between the rotor case of rotor assembly
Set, motor front axle is held is provided with the second axle sleeve between the transcapsidation of rotor assembly.
Further improvement of the utility model is：Drive end bearing bracket penetrates through bearing chamber.
Further improvement of the utility model is：Motor front axle, which holds to hold with electric motor back shaft, is arranged at the outer of rotor assembly
Portion.
The beneficial effects of the utility model are：1st, two bearings are all in rotor exterior, and rear bearing chamber is not in motor front end cover
It is interior；2nd, increase axle sleeve, rotor can assemble front and back bearings in a procedure, install later as a rotor assembly；3rd, it is preceding
Bearing with end cover room penetrates through, and processing is simple, and precision is high, and production efficiency is high；4th, increase pre-load nut, after the completion of rotor assembling, pre-tighten
Nut screws in drive end bearing bracket by tooling, and pre-load nut depth is adjustable, motor axial direction pressure adjustable；5th, after pre-load nut removal, electricity
Machine can repeatedly lossless assembly and disassembly.
It after the completion of the assembling of the utility model rotor, i.e., is assembled and disassembled as an entirety, operating is convenient, and production efficiency is high；Motor
Easy to maintenance, such as flimsy bearing is individually disassembled, ressembles bearing, reduces the risk of association inventory disposal；Electricity
It is convenient that machine adjustment is replaced, and lossless to disassemble, can install debugging repeatedly.
Description of the drawings
Fig. 1 is the existing outer-rotor structure figure of the utility model.
Fig. 2 is the structure diagram of the utility model outer rotor.
Fig. 3 is the structure diagram of the utility model pre-load nut.
Fig. 4 is the structure diagram that the utility model pre-load nut screws in drive end bearing bracket.
Fig. 5 is the explosive view of the utility model.
Specific embodiment
In order to deepen the understanding to the utility model, the utility model is done further below in conjunction with drawings and examples
Detailed description, the embodiment are only used for explaining the utility model, and the scope of protection of the utility model is not formed and is limited.
As shown in Figs. 1-5, the utility model is a kind of outer rotor motor structure with pre-load nut, including motor case 1,
Motor front axle hold 6 and electric motor back shaft hold 7, drive end bearing bracket 2, stator module 3, rotor assembly 4, shaft 5, motor case leads to drive end bearing bracket
It crosses side screw to be fixed together, wave pad 10 is provided in the bearing chamber of the drive end bearing bracket 2, it is also logical in the drive end bearing bracket 2
It crosses tooling screw-in and is provided with pre-load nut 11, increase pre-load nut, after the completion of rotor assembling, before pre-load nut is screwed in by tooling
End cap, pre-load nut depth is adjustable, motor axial direction pressure adjustable, pre-load nut removal after, motor can repeatedly lossless assembly and disassembly,
The electric motor back shaft holds and the first axle sleeve 8 is provided between 7 and the rotor case of the rotor assembly 4, and first axle sleeve can be used
Plain cushion is replaced, and realizes the purpose of isolation, and the motor front axle holds and is provided with second between 6 and the transcapsidation of the rotor assembly 4
Axle sleeve 9 increases axle sleeve, and rotor can assemble front and back bearings in a procedure, and the drive end bearing bracket 2 penetrates through bearing chamber, processing letter
Single, precision is high, and production efficiency is high, the motor front axle hold 6 and electric motor back shaft hold 7 outsides for being arranged at the rotor assembly 4,
Bearing chamber is not in motor front end cover afterwards.Wave pad is placed in drive end bearing bracket bearing chamber, is put into before screwing pre-load nut；Pre-load nut is consolidated
After fixed, it cannot highly interfere with flange, pre-load nut needs to be fastened with special tooling；Electric motor back shaft is held to be needed between rotor case
Axle sleeve or plain cushion isolation；Motor case and drive end bearing bracket will first pass through side screw and be fixed together.
The outer-rotor structure of the utility model as shown in Fig. 2, explosive view as shown in figure 5, as shown in Figure 1 with existing structure
Difference is as follows：
1st, two bearings are all in rotor exterior, and rear bearing chamber is not in motor front end cover；
2nd, increase axle sleeve, rotor can assemble front and back bearings in a procedure, install later as a rotor assembly；
3rd, drive end bearing bracket bearing chamber penetrates through, and processing is simple, and precision is high, and production efficiency is high；
4th, increasing pre-load nut, see Fig. 3, after the completion of rotor assembling, pre-load nut screws in drive end bearing bracket by tooling, sees Fig. 4,
Pre-load nut depth is adjustable, motor axial direction pressure adjustable；
5th, after pre-load nut removal, motor can repeatedly lossless assembly and disassembly.
The utility model is particularly suitable for the external rotor electric machine that axial pre tightening force requires, and is also particularly suitable for being frequently necessary to repeatedly
The motor disassembled；Motor lossless can be disassembled, and reduce the association inventory disposal probability generated due to assembling is bad.
Claims (3)
1. a kind of outer rotor motor structure with pre-load nut, including motor case（1）, motor front axle holds（6）And electric motor back shaft
It holds（7）, drive end bearing bracket（2）, stator module（3）, rotor assembly（4）, shaft（5）, it is characterised in that：In the drive end bearing bracket（2）'s
Wave pad is provided in bearing chamber（10）, in the drive end bearing bracket（2）Pre-load nut is also inside provided with by tooling screw-in（11）, it is described
Electric motor back shaft is held（7）With the rotor assembly（4）Rotor case between be provided with the first axle sleeve（8）, the motor front axle holds（6）
With the rotor assembly（4）Transcapsidation between be provided with the second axle sleeve（9）.
2. a kind of outer rotor motor structure with pre-load nut according to claim 1, it is characterised in that：The drive end bearing bracket
（2）Penetrate through bearing chamber.
3. a kind of outer rotor motor structure with pre-load nut according to claim 1, it is characterised in that：The motor front axle
It holds（6）It is held with electric motor back shaft（7）It is arranged at the rotor assembly（4）Outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721672192.6U CN207490658U (en) | 2017-12-05 | 2017-12-05 | A kind of outer rotor motor structure with pre-load nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721672192.6U CN207490658U (en) | 2017-12-05 | 2017-12-05 | A kind of outer rotor motor structure with pre-load nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207490658U true CN207490658U (en) | 2018-06-12 |
Family
ID=62457806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721672192.6U Expired - Fee Related CN207490658U (en) | 2017-12-05 | 2017-12-05 | A kind of outer rotor motor structure with pre-load nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207490658U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742934A (en) * | 2017-12-05 | 2018-02-27 | 常州富兴机电有限公司 | A kind of outer rotor motor structure with pre-load nut |
| CN114006494A (en) * | 2021-10-20 | 2022-02-01 | 西安中车永电捷力风能有限公司 | Wind driven generator with bearing unit capable of being disassembled on tower |
-
2017
- 2017-12-05 CN CN201721672192.6U patent/CN207490658U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107742934A (en) * | 2017-12-05 | 2018-02-27 | 常州富兴机电有限公司 | A kind of outer rotor motor structure with pre-load nut |
| CN107742934B (en) * | 2017-12-05 | 2024-05-03 | 常州富兴机电有限公司 | Outer rotor motor structure with pre-tightening nut |
| CN114006494A (en) * | 2021-10-20 | 2022-02-01 | 西安中车永电捷力风能有限公司 | Wind driven generator with bearing unit capable of being disassembled on tower |
| CN114006494B (en) * | 2021-10-20 | 2024-02-02 | 西安中车永电捷力风能有限公司 | Wind driven generator capable of disassembling bearing unit on tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180612 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |