CN2408282Y - Assembling rotor axle for oil containing bearing - Google Patents
Assembling rotor axle for oil containing bearing Download PDFInfo
- Publication number
- CN2408282Y CN2408282Y CN 99258066 CN99258066U CN2408282Y CN 2408282 Y CN2408282 Y CN 2408282Y CN 99258066 CN99258066 CN 99258066 CN 99258066 U CN99258066 U CN 99258066U CN 2408282 Y CN2408282 Y CN 2408282Y
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- CN
- China
- Prior art keywords
- rotor shaft
- oil
- impregnated bearing
- hole
- cap
- 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 - Lifetime
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Abstract
The utility model relates to an assembling rotor shaft for an oil containing bearing. The utility model provides a motor part which has the advantages of simple manufacture, no leakage, stable operation, low noise, and long service life. The utility model comprises a shaft pipe, an oil containing bearing, an upper cap cover provided with a through hole, a lower cap cover and a rotor shaft. The upper cap cover and the lower cap cover are assembled at both ends of an inner hole of the shaft pipe in a pressure tight fit assembly state. The oil containing bearing can be easily arranged in the fit assembly state to be assembled in the inner hole of the shaft pipe and be positioned between the upper cap cover and the lower cap cover. The other end of a rotor penetrates through the through hole on the upper cap cover and a shaft hole of the oil containing bearing to be abutted on the lower cap cover, and is positioned at a fastener, the periphery of which is fastened between the upper cap cover and the oil containing bearing.
Description
The utility model belongs to motor component, particularly a kind of group of rotor shaft of establishing oil-impregnated bearing.
The rotor that traditional heat-dissipating fan, brushless electric machine etc. have, it is that axle with rotor is articulated in and rotates in the bearing that fixedly installs, and the bearing of commonly using is generally ball bearing or oil-containing (profit certainly) bearing.This group of commonly using is established the assembling mode of oil-impregnated bearing and rotor, and most of system closely is fixed on central siphon or bearing support inwall with oil-impregnated bearing, then with the axle pivot joint rotation of oil-impregnated bearing for rotor.In assembling process, need to be fixed in central siphon or bearing support inwall in the mode of closely cooperating, therefore, oil-impregnated bearing promptly can produce to the axis hole extruding, forms compression deformation in the axis hole, thus, between the axis hole wall of axle and oil-impregnated bearing, promptly can form rough contact friction, though the shaft hole diameter amount of deformation of this oil-impregnated bearing is minimum, but because of rotor is at a high speed, under the running that continues, very easily produce Rotation Noise, and continuing under rough friction situation, it is big that the gap between axle and oil-impregnated bearing axis hole becomes, therefore, the rotation of rotor can cause jiggly vibrations, further produces bigger noise thereby the life-span of reducing the use of motor.As the U.S. the ' the 5th, 610, the structure of 642 ' number disclosed oil-impregnated bearing of ' brushless electric machine ' patent because its lubricant oil need recycle, therefore, this patent disclosure a kind of structure that makes lubricant oil effectively store and to keep it not leak.Its rotor bump cooperates the requirement making just between the two with cut-out portion, otherwise can can't prevent leakage of oil or assembling difficulty, makes it be difficult for manufacturing.
The purpose of this utility model provide a kind of make simple, prevent oil leak, running steadily, noise group low, long service life establishes the rotor shaft of oil-impregnated bearing.
The utility model comprises that the central siphon of orate, the oil-impregnated bearing of tool central shaft hole, the last cap of tool through hole, following cap and an end are incorporated into the rotor shaft of roller; Upper and lower cap is located at central siphon endoporus two ends with the close-fitting winding state group of pressure; Oil-impregnated bearing is located in the central siphon endoporus with the winding state group that can insert cooperation easily, and between upper and lower cap; The rotor the other end passes behind through hole on the cap, the oil-impregnated bearing axis hole contact on cap down, and in the fastener of its periphery fastening between last cap and oil-impregnated bearing.
Wherein:
The oil-impregnated bearing outer surface is provided with the conduit that connects its upper and lower end face more than.
Following cap interior edge face center forms the supported hole of concave-arc hole; The rotor shaft top forms and following cap interior edge face intermediate support hole contact coniform mutually.
Following cap interior edge face cover cap has pad; The coniform top that the rotor shaft top forms and pad be contact mutually.
Following cap interior edge face center forms the supported hole of big concave-arc hole, and the supported hole upper cover has pad; The coniform top that the rotor shaft top forms and pad be contact mutually.
Following cap interior edge face center forms the supported hole of through hole, and the supported hole upper cover has pad; The coniform top that the rotor shaft top forms and pad be contact mutually.
The rotor shaft periphery is provided with the limiting groove that fastens fastener.
Be fastened on the interior fastener external diameter of rotor shaft limiting groove greater than last cap through hole internal diameter.
Rotor shaft and oil-impregnated bearing articulate the section periphery and are provided with annular groove.
Because the utility model comprises the last cap of central siphon, oil-impregnated bearing, tool through hole, following cap and rotor shaft; Upper and lower cap is located at central siphon endoporus two ends with the close-fitting winding state group of pressure; Oil-impregnated bearing is located in the central siphon endoporus with the winding state group that can insert cooperation easily, and between upper and lower cap; The rotor the other end passes behind through hole on the cap, the oil-impregnated bearing axis hole contact on cap down, and in the fastener of its periphery fastening between last cap and oil-impregnated bearing.Oil-impregnated bearing is located in the central siphon endoporus to be the winding state group that can insert cooperation easily, and by the upper and lower cap restriction location of being located at central siphon endoporus two ends with the close-fitting winding state group of pressure, make the central through bore of oil-impregnated bearing can not produce distortion, to guarantee smoothly contact minimizing rotor shaft Rotation Noise between rotor shaft and oil-impregnated bearing; Prevent oil leak by fastener, not only make simply, and prevent oil leak, steady, low, the long service life of noise of running, thereby reach the purpose of this utility model.
Fig. 1, be the utility model decomposition texture schematic isometric.
Fig. 2, be the utility model structural representation sectional view.
Fig. 3, for the utility model structural representation sectional view (following cap cover cap has pad).
Below in conjunction with accompanying drawing the utility model is further elaborated.
As shown in Figure 1, the utility model comprises central siphon 1, last cap 12, following cap 13, oil-impregnated bearing 2 and rotor shaft 3.
Upper and lower cap 12,13 peripheries are corresponding with central siphon 1 endoporus 11, and are with the close-fitting winding state group of pressure and are located at central siphon 1 endoporus 11 upper and lower ends.Last cap 12 is provided with central through bore 121.Following cap 13 interior edge face centers form the supported hole 131 of concave-arc hole.As shown in Figure 3, also can form through hole or big arc hole supported hole 141, and be the pad 15 of AFM sheet in supported hole 141 upper covers in following cap 13 centers.
Oil-impregnated bearing 2 can be the known copper bearing, the self-lubricating bearing that are provided with central shaft hole 21 or contains the bearing of lubricating oil.Its periphery is corresponding with central siphon 1 endoporus 11, and is the winding state group that can insert cooperation easily and is located in central siphon 1 endoporus 11, and between upper and lower cap 12,13.Oil-impregnated bearing 2 outer surfaces are provided with one or more conduit that connects its upper and lower end face 22, make lubricant oil in central siphon 1 endoporus 11 oil-impregnated bearing 2 inside and outside, upper and lower circulating by conduit 22.
Ring is established limiting groove 31 and annular groove 33 on the rotor shaft 3, and makes annular groove 33 be positioned at and oil-impregnated bearing 2 pivot joint sections, and its top forms coniform.
Oil-impregnated bearing 2 is with the winding state group of inserting cooperation easily to be located in central siphon 1 endoporus 11, last cap 12 is with the close-fitting winding state group of pressure is located at central siphon 1 endoporus 11 upper ends, the end on the coniform top of formation that one end is combined in the rotor shaft 3 of rotor center passes the through hole 121 on the cap 12, on limiting groove 31, fasten the fastener 32 of external diameter greater than last cap 12 through holes 121 internal diameters, pass the central shaft hole 21 of oil-impregnated bearing 2 again, annular groove 33 is positioned at oil-impregnated bearing 2 and articulates section on it, following cap 13 is with the close-fitting winding state group of pressure is located at central siphon 1 endoporus 11 lower ends, with oil-impregnated bearing 2 restriction is positioned at central siphon 1 endoporus 11 on, following cap 12, between 13, and make on it to the supported hole 131 of concave-arc hole coniform top and offset with rotor shaft 3, make the coniform top of rotor shaft 3 stay on down on the supported hole 131 of cap 13 interior edge faces, so that rotor shaft 3 is more smooth-going, rotation stably.Fastener 32 is preferably near the through holes 121 of last caps 12, preventing lubricant oil by last cap 12 central through bores 121 seepages, and reduces the area of contact of itself and oil-impregnated bearing 2 and stockpiles lubricant oil by the annular groove on the rotor shaft 3 33.
As shown in Figure 2, during assembling, to go up cap 12 is with the close-fitting winding state group of pressure and is located at central siphon 1 endoporus 11 upper ends, the end on the coniform top of formation that one end is combined in the rotor shaft 3 of rotor center passes the through hole 121 on the cap 12, on limiting groove 31, fasten the fastener 32 of external diameter greater than last cap 12 through holes 121, oil-impregnated bearing 2 is with the winding state group of inserting cooperation easily from central siphon 1 the other end and is located in central siphon 1 endoporus 11, to descend cap 13 to be and be located at central siphon 1 endoporus 11 lower ends with the close-fitting winding state group of pressure, making on it is that the supported hole 131 of concave-arc hole and the coniform top of rotor shaft 3 offset, so that the axle bed 301 unlikely caps 12 that touch of rotor 30.
During use, central siphon 1 is fixed on the bearing support 41 of housing 40, central siphon 1 external diameter is with stator coil 42 and upper and lower pole piece 43,44.One end of rotor shaft 3 then is combined in rotor 30 centers, by ring magnet 34 and stator coil 42 inductions, to drive rotor 30 rotations, the other end of rotor shaft 3 passes cap 12 central through bores 121 back and is fastened on the limiting groove 31 of rotor shaft 3 with fastener 32, to keep rotor shaft 3 not deviate from central siphon 1 and resistance is sealed up central through bore 121 on the cap 12 and prevented oil leak.
As shown in Figure 3, following cap 13 is that the coniform top of pad 15 and rotor shaft 3 on the supported hole 141 of central through bore or big concave-arc hole offsets with cover cap in it, so that the elasticity of little distortion of pad 15 tools, thereby make rotor shaft 3 tops be elastic support, make it to rotate more reposefully and slow down the abrasion between the cap 13 and rotor shaft 3 down, increase the service life.
Oil-impregnated bearing of the present utility model is located in the central siphon endoporus to be the winding state group that can insert cooperation easily, and by upper and lower cap restriction location, make the central through bore of oil-impregnated bearing can not produce distortion, to guarantee smoothly contact minimizing rotor shaft Rotation Noise between rotor shaft and oil-impregnated bearing; And by involution the upper and lower cap of central siphon upper and lower end and be fastened on the rotor shaft and near on the fastener of cap through hole, prevent oil leak, make the utility model can possess lubricant oil for a long time, and be stored in the annular groove that reaches rotor shaft between oil-impregnated bearing and upper and lower cap, prolong working life of the present utility model.
Claims (9)
1, a kind of group of rotor shaft of establishing oil-impregnated bearing, it comprises the central siphon of orate, the oil-impregnated bearing of tool central shaft hole and the rotor shaft that an end is incorporated into roller; It is characterized in that being provided with upper and lower cap with the close-fitting winding state group of pressure at central siphon endoporus two ends; Last cap is provided with through hole; Oil-impregnated bearing is located in the central siphon endoporus with the winding state group that can insert cooperation easily, and between upper and lower cap; The rotor the other end passes behind through hole on the cap, the oil-impregnated bearing axis hole contact on cap down, and in the fastener of its periphery fastening between last cap and oil-impregnated bearing.
2, according to claim 1 group of rotor shaft of establishing oil-impregnated bearing is characterized in that described oil-impregnated bearing outer surface is provided with the conduit that connects its upper and lower end face more than.
3, according to claim 1 group of rotor shaft of establishing oil-impregnated bearing is characterized in that described cap interior edge face center down forms the supported hole of concave-arc hole; The rotor shaft top forms and following cap interior edge face intermediate support hole contact coniform mutually.
4, according to claim 1 group of rotor shaft of establishing oil-impregnated bearing is characterized in that described cap interior edge face cover cap down has pad; The coniform top that the rotor shaft top forms and pad be contact mutually.
5, according to claim 1 group of rotor shaft of establishing oil-impregnated bearing is characterized in that described cap interior edge face center down forms the supported hole of big concave-arc hole, and the supported hole upper cover has pad; The coniform top that the rotor shaft top forms and pad be contact mutually.
6, according to claim 1 group of rotor shaft of establishing oil-impregnated bearing is characterized in that described cap interior edge face center down forms the supported hole of through hole, and the supported hole upper cover has pad; The coniform top that the rotor shaft top forms and pad be contact mutually.
7, according to claim 1 group of rotor shaft of establishing oil-impregnated bearing is characterized in that described rotor shaft periphery is provided with the limiting groove that fastens fastener.
8,, it is characterized in that the described interior fastener external diameter of rotor shaft limiting groove that is fastened on is greater than last cap through hole internal diameter according to claim 1 or 7 described groups of rotor shafts of establishing oil-impregnated bearing.
9, according to claim 1 group of rotor shaft of establishing oil-impregnated bearing is characterized in that described rotor shaft and oil-impregnated bearing articulate the section periphery and be provided with annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99258066 CN2408282Y (en) | 1999-12-29 | 1999-12-29 | Assembling rotor axle for oil containing bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99258066 CN2408282Y (en) | 1999-12-29 | 1999-12-29 | Assembling rotor axle for oil containing bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2408282Y true CN2408282Y (en) | 2000-11-29 |
Family
ID=34040775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99258066 Expired - Lifetime CN2408282Y (en) | 1999-12-29 | 1999-12-29 | Assembling rotor axle for oil containing bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2408282Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100363638C (en) * | 2003-12-05 | 2008-01-23 | 建准电机工业股份有限公司 | Motor dust proof bearing assembly |
-
1999
- 1999-12-29 CN CN 99258066 patent/CN2408282Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100363638C (en) * | 2003-12-05 | 2008-01-23 | 建准电机工业股份有限公司 | Motor dust proof bearing assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Kunshan Guangxing Electronics Co., Ltd. Assignor: Jianzhun Electric Motor Industry Co., Ltd. Contract fulfillment period: In December 29, 2009, the patent expired Contract record no.: 031000030105 Denomination of utility model: The rotor shaft of the oil bearing is arranged in the group Granted publication date: 20001129 License type: General permission Record date: 2003.5.28 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: COMMON LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.12.29, EXPIRATION OF PATENT RIGHT Name of requester: KUNSHAN GUANGXING ELECTRONICS CO., LTD. Effective date: 20030528 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Kunshan Guangxing Electronics Co., Ltd. Assignor: Jianzhun Electric Motor Industry Co., Ltd. Contract fulfillment period: December 29, 2009 Contract record no.: 031000030105 Denomination of utility model: The rotor shaft of the oil bearing is arranged in the group Granted publication date: 20001129 License type: General permission Record date: 20030528 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: COMMON LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.12.29 Name of requester: KUNSHAN GUANGXING ELECTRONICS CO., LTD. Effective date: 20030528 |