CN102368641A - Improved structure of motor - Google Patents
Improved structure of motor Download PDFInfo
- Publication number
- CN102368641A CN102368641A CN2011103322130A CN201110332213A CN102368641A CN 102368641 A CN102368641 A CN 102368641A CN 2011103322130 A CN2011103322130 A CN 2011103322130A CN 201110332213 A CN201110332213 A CN 201110332213A CN 102368641 A CN102368641 A CN 102368641A
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- iron core
- bearing
- spring
- motor
- groove
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Abstract
The invention discloses an improved structure of a motor. The improved structure comprises: a motor rotor (2), a first bearing (1) and a second bearing (5). One end of an iron core (3) of the motor rotor (2) bears against the first bearing. A resilient device (7) is arranged between the other end of the iron core and the second bearing (5). One end of the resilient device locates on an end face of the iron core which is close to the second bearing. The other end of the resilient device bears against an inner ring of the second bearing. The resilient device, which is located on one end of the iron core, uses itself stretched performance to generate a cushion function to axial moving of the iron core when the motor operates. Therefore, a normal output efficiency of the motor can not be influenced by rigid collision generated between the iron core and the bearing and simultaneously a service life of the iron core can be prolonged.
Description
Technical field
The present invention relates to a kind of improvement structure of motor.
Background technology
Rotor comprises iron core, and the iron core both sides are provided with bearing, and bearing fixing is on electric motor end cap, and iron core is located between two bearings.In assembling process, can form a little gap between bearing and the iron core, when motor moves; Rotor high-speed rotates; The bearing generation rigid collision at axial endplay and two ends takes place in output shaft and iron core easily, influences the running of rotor; And then influence the delivery efficiency of motor moreover the useful life that also can reduce iron core.
Summary of the invention
The technical problem that the present invention will solve provides a kind of improvement structure of motor, can effectively avoid the rigid collision between the iron core and bearing in the motor operation course.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of improvement structure of motor; Comprise rotor, clutch shaft bearing and second bearing, iron core one end of rotor is against on the clutch shaft bearing, is provided with elastic device between the said iron core other end and second bearing; One end of elastic device is positioned on the end end face of iron core near second bearing, and the other end of elastic device is against on the inner ring of second bearing.The elastic device that is positioned at iron core one end utilizes the telescopicing performance of self; When motor moves; Axial endplay to iron core has produced pooling feature, has avoided iron core and bearing generation rigid collision and influences the normal delivery efficiency of motor, the useful life of having improved iron core simultaneously.
Further, said elastic device is first spring, and first spring housing is in the rotating shaft of rotor.Said first spring produces elastic thrust along the shaft axis direction to both sides, the axial endplay that the buffering iron core produces when motor moves.
Further, said iron core is provided with first location structure of location first spring, one end near an end end face of second bearing.On the iron core end face, spring is set bit architecture, effectively limit the spring energized object of first spring, more efficiently bring into play the elastic force effect of first spring.
Further, said first location structure is first groove, said first groove and first spring near iron core an end corresponding.Said first spring is positioned in first groove, with the activity and the elastic force zone of action of restraining spring, effectively brings into play elastic effect.
Further, said first location structure is first boss, said first boss and first spring near iron core an end corresponding.Said first spring is positioned on first boss, with the activity and the elastic force zone of action of restraining spring, effectively brings into play elastic effect.
Further, said elastic device comprises second spring that at least one circumferentially distributes along rotating shaft, and the inner ring of second bearing is along second location structure that is provided with location second spring, one end in the projection of rotor axis on iron core.Said second spring is positioned at the inner ring of second bearing along on second location structure in the projection of rotor axis on iron core; The elastic thrust that second spring produces can play the effect of buffering iron core axial endplay; Elastic acting force only acts on second bearing inner race simultaneously, guarantees that the elastic acting force of second spring has obtained effective performance.
Further, said second location structure is second groove, said second groove and second spring near iron core an end corresponding.Said second spring is positioned in second groove, with the activity and the elastic force zone of action of restraining spring, effectively brings into play elastic effect.
Further, said second location structure is second boss, said second boss and second spring near iron core an end corresponding.Said second spring is located on second boss, with the activity and the elastic force zone of action of restraining spring, effectively brings into play elastic effect.
The present invention adopts elastic device; Its beneficial effect is: the elastic device that is positioned at iron core one end utilizes the telescopicing performance of self; When motor moves; Axial endplay to iron core has produced pooling feature, has avoided iron core and bearing generation rigid collision and influences the normal delivery efficiency of motor, the useful life of having improved iron core simultaneously.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further specified:
Fig. 1 is the structural representation of an embodiment of the present invention;
Fig. 2 is the structural representation of second kind of embodiment of the present invention;
Fig. 3 is the structural representation of the third embodiment of the present invention;
Fig. 4 is the enlarged drawing of I among Fig. 3;
Fig. 5 is the structural representation of the 4th kind of embodiment of the present invention;
Fig. 6 is the enlarged drawing of II among Fig. 5.
Embodiment
Embodiment one:
The structural representation of an embodiment of the present invention as shown in Figure 1; A kind of improvement structure of motor; Comprise rotor 2, clutch shaft bearing 1 and second bearing 5, iron core 3 one ends of rotor 2 are against on the clutch shaft bearing, are provided with elastic device 7 between the said iron core other end and second bearing 5; One end of elastic device is positioned on the end end face of iron core near second bearing, and the other end of elastic device is against on the inner ring of second bearing.Elastic device utilizes the retractility of himself, and iron core is produced buffering effect when motor moves.
The said elastic device of present embodiment is first spring, and said first spring housing is in the rotating shaft 6 of rotor.
In the present embodiment, said iron core is provided with first location structure 4 of location first spring, one end near an end end face of second bearing.
In the present embodiment; Said first location structure is first groove; Said first groove and first spring near iron core an end corresponding; The first groove twisted rotary shaft ringwise, first spring, one end is stuck in first groove, the first spring other end is against on the inner ring of clutch shaft bearing and is enclosed within the rotating shaft simultaneously.
In the present embodiment, the preferred cylindrical spring of said first spring, corresponding first groove drop on second bearing inner race in iron core end on projection zone; When said first groove exceeds second bearing inner race and is projected in regional on the iron core end face; First spring is selected volute spring for use; First groove can be located at whole zone on the end face of iron core near second bearing; The big end of volute spring is positioned on the iron core, and the small end of volute spring is against on the inner ring of second bearing.
Embodiment two:
As shown in Figure 2; Present embodiment and embodiment one difference are that said first location structure is first boss, and the first boss twisted rotary shaft ringwise; First spring, one end is enclosed within on first boss, and the first spring other end is against on the inner ring of first spring and is enclosed within the rotating shaft simultaneously.
In the present embodiment, the preferred cylindrical spring of said first spring, the first boss correspondence drops on second bearing inner race in iron core end on projection zone.When said first boss exceeds second bearing inner race and is projected in regional on the iron core end face; First spring is selected volute spring for use; First boss can be located at whole zone on the end face of iron core near second bearing; The big end of volute spring is positioned on the iron core, and the small end of volute spring is against on the inner ring of second bearing.
Embodiment three:
Like Fig. 3, shown in Figure 4; Present embodiment and embodiment one difference are; Said elastic device comprises two second springs that circumferentially distribute along rotating shaft, and the inner ring of second bearing is along second location structure 8 that is provided with location second spring, one end in the projection of rotor axis on iron core.Second spring is positioned at along on the rotating shaft circumferential position, and second spring, one end is positioned on the iron core, and the second spring other end is against on the inner ring of second bearing.
Said second location structure 8 is second groove, and second spring, one end is positioned in second groove, and the second spring other end is against on the spring inner ring.
Second groove described in the present embodiment can be two, also can be one, can also be three or more than three.The preferred cylindrical spring of described second spring certainly acts under the prerequisite on second bearing inner race satisfying the end of selected spring near second bearing, also can select volute spring or other springs of little tapering for use.
Embodiment four:
Like Fig. 5, shown in Figure 6, present embodiment and embodiment three differences are that said second location structure 8 is second boss, and second spring, one end is positioned on second boss, and the second spring other end is against on the spring inner ring.
The preferred cylindrical spring of second spring in the present embodiment acts under the prerequisite on second bearing inner race satisfying the end of selected spring near second bearing, and second spring also can be selected volute spring or other springs of little tapering for use.
Except that above-mentioned preferred embodiment, the present invention also has other execution mode, and those skilled in the art can make various changes and distortion according to the present invention, only otherwise break away from spirit of the present invention, all should belong to the defined scope of accompanying claims of the present invention.
Claims (8)
1. the improvement structure of a motor; Comprise rotor (2), clutch shaft bearing (1) and second bearing (5); Iron core (3) one ends of rotor (2) are against on the clutch shaft bearing; It is characterized in that: be provided with elastic device (7) between the said iron core other end and second bearing (5), an end of elastic device is positioned on the end end face of iron core near second bearing, and the other end of elastic device is against on the inner ring of second bearing.
2. the improvement structure of a kind of motor according to claim 1, it is characterized in that: said elastic device is first spring, said first spring housing is in the rotating shaft (6) of rotor.
3. the improvement structure of a kind of motor according to claim 1 and 2 is characterized in that: said iron core is provided with first location structure (4) of location first spring, one end near an end end face of second bearing.
4. the improvement structure of a kind of motor according to claim 3, it is characterized in that: said first location structure is first groove, said first groove and first spring near iron core an end corresponding.
5. the improvement structure of a kind of motor according to claim 3, it is characterized in that: said first location structure is first boss, said first boss and first spring near iron core an end corresponding.
6. the improvement structure of a kind of motor according to claim 1; It is characterized in that: said elastic device comprises second spring that at least one circumferentially distributes along rotating shaft, and the inner ring of second bearing is along second location structure (8) that is provided with location second spring, one end in the projection of rotor axis on iron core.
7. the improvement structure of a kind of motor according to claim 6, it is characterized in that: said second location structure (8) is second groove, said second groove and second spring near iron core an end corresponding.
8. the improvement structure of a kind of motor according to claim 6, it is characterized in that: said second location structure is second boss, said second boss and second spring near iron core an end corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103322130A CN102368641A (en) | 2011-10-28 | 2011-10-28 | Improved structure of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103322130A CN102368641A (en) | 2011-10-28 | 2011-10-28 | Improved structure of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102368641A true CN102368641A (en) | 2012-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103322130A Pending CN102368641A (en) | 2011-10-28 | 2011-10-28 | Improved structure of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102368641A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078440A (en) * | 2012-12-30 | 2013-05-01 | 深圳市颜华守信科技有限公司 | Motor for preventing central rotor from shaking and pump body |
| CN107949887A (en) * | 2015-09-17 | 2018-04-20 | 积水保力马科技株式会社 | Elastic distribution component |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1714492A (en) * | 2002-12-19 | 2005-12-28 | 罗伯特·博世有限公司 | Electrical machines |
| CN101010854A (en) * | 2004-08-25 | 2007-08-01 | 罗伯特·博世有限公司 | Electric machine comprising an axial spring-loaded element |
| CN102035289A (en) * | 2010-12-30 | 2011-04-27 | 东莞国亮电机有限公司 | Vibration damping and noise reducing mechanism for motor rotor |
| 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 |
| CN202231510U (en) * | 2011-10-28 | 2012-05-23 | 许晓华 | Improved structure of motor |
-
2011
- 2011-10-28 CN CN2011103322130A patent/CN102368641A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1714492A (en) * | 2002-12-19 | 2005-12-28 | 罗伯特·博世有限公司 | Electrical machines |
| CN101010854A (en) * | 2004-08-25 | 2007-08-01 | 罗伯特·博世有限公司 | Electric machine comprising an axial spring-loaded element |
| CN102035289A (en) * | 2010-12-30 | 2011-04-27 | 东莞国亮电机有限公司 | Vibration damping and noise reducing mechanism for motor rotor |
| 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 |
| CN202231510U (en) * | 2011-10-28 | 2012-05-23 | 许晓华 | Improved structure of motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078440A (en) * | 2012-12-30 | 2013-05-01 | 深圳市颜华守信科技有限公司 | Motor for preventing central rotor from shaking and pump body |
| CN107949887A (en) * | 2015-09-17 | 2018-04-20 | 积水保力马科技株式会社 | Elastic distribution component |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120307 |