CN2450415Y - Rotor shaft assembly provided with oiliness bearing - Google Patents
Rotor shaft assembly provided with oiliness bearing Download PDFInfo
- Publication number
- CN2450415Y CN2450415Y CN 00258222 CN00258222U CN2450415Y CN 2450415 Y CN2450415 Y CN 2450415Y CN 00258222 CN00258222 CN 00258222 CN 00258222 U CN00258222 U CN 00258222U CN 2450415 Y CN2450415 Y CN 2450415Y
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- CN
- China
- Prior art keywords
- rotor shaft
- oil
- cap
- impregnated bearing
- central
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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 - Lifetime
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Abstract
The utility model relates to a rotor shaft assembly provided with an oiliness bearing. The utility model provides a motor component which has the advantages of good effect on resisting leakage, easy working assembly, smooth running and long service life. The utility model comprises a shaft pipe, an oilless bearing, an upper cap cover, a lower cap cover and a rotor shaft. The oilless bearing is arranged in a central through hole of the shaft pipe. The oilless bearing is limited and positioned through the upper cap cover and the lower cap cover which are tightly matched and sealed at the top end and the bottom end of the shaft pipe. The upper part of the rotor shaft between the upper cap cover and the top end of the oilless bearing is sheathed with an assembly component of a sleeve body in an interference fit mode, and the inner diameter and the outer diameter of the assembly component of the sleeve body are respectively corresponding to the outer diameter of the rotor shaft and the central through hole of the upper cap cover to be sheathed. The bottom end of the assembly component horizontally extends to be provided with a ring edge.
Description
The utility model belongs to motor component, particularly a kind of group of rotor shaft assembly bearing of establishing oil-impregnated bearing.
Traditional heat-dissipating fan, brushless electric machine etc. have the parts of rotor, and it all is rotor shaft to be hubbed in the fixing bearing rotate.And the bearing of commonly using is generally ball bearing or be referred to as to call the oil-impregnated bearing of self-lubricating bearing.As the U.S. is for the 5th, 610, No. 462 the described oil-impregnated bearing of ' brushless electric machine ' patent case, and the most of system of its assembling mode closely is fixed on central siphon or bearing support inwall with oil-impregnated bearing, then by oil-impregnated bearing for the rotor rotation that is pivoted.In assembling process, because oil-impregnated bearing needs to be fixed on central siphon or bearing support inwall in the mode of closely cooperating, therefore, oil-impregnated bearing promptly can produce to the axis hole extruding and form the distortion of contracting in the aperture axis.Thus, promptly can form rough contact friction between rotor shaft and oil-impregnated bearing axis hole wall, though, the shaft hole diameter amount of deformation of this oil-impregnated bearing is minimum, but is at a high speed at rotor, very easily produces Rotation Noise under the continuous running operating mode, and under the friction operating conditions that continues uneven bone, it is big that gap between axle and oil-impregnated bearing axis hole becomes, therefore, the rotation of rotor can produce jiggly vibrations, further forms bigger noise, shortens working life of bearing.In addition, this oil-impregnated bearing since its lubricant oil for recycling, therefore, its effective storage lubricant oil also is provided and prevent its leakage structure, but still there is the defective that the element manufacturing is difficult for and assembling is inconvenient, as the projection and the cut-out portion of rotor, cooperate just because of its projection needs to make with position, the footpath size of cut-out portion, otherwise have the problem that can't prevent leakage of oil or assembling difficulty.
A kind of ' oil-impregnated bearing and rotor shaft structure construction ' disclosed for this reason, it is the last cap that is fixedly had the hole by the central siphon upper end with the footpath close-fitting, after rotor shaft passed hole on the cap, be fastened in the limiting groove of rotor shaft with fasteners such as clasps again, rotor shaft is constrained to can not be deviate from, and the rotor shaft external diameter below fastener is with sheathed oil-impregnated bearing, and make oil-impregnated bearing insert the central siphon endoporus in non-drive fit mode, the following again cap involution in central siphon lower end, oil-impregnated bearing is limited between the upper and lower cap, in order to support the rotor shaft rotation.Therefore this structure, needs to be provided with the limiting groove that fastens the location for fastener because fastener is tied to form the ring plate shape and is fastened on the rotor shaft on rotor shaft, its processing assembling is trouble all, and does not also attain ideal with the anti-oil seepage effect that monolithic ring plate shape fastener is reached.
The purpose of this utility model provides that a kind of leakage proof is effective, processing assembling easily, running steadily, the group of long service life establishes the rotor shaft assembly of oil-impregnated bearing.
The utility model comprises that the central siphon, oil-impregnated bearing, last cap, following cap and the end that are provided with central through bore are incorporated into the rotor shaft on the rotor axle bed; Oil-impregnated bearing is arranged in the central siphon central through bore, and by the close-fitting involution in the central siphon top and bottom ends upper and lower cap restriction location; The rotor shaft the other end is through at cap and oil-impregnated bearing central through bore apical grafting on cap down; Be arranged with inside and outside footpath respectively with the rotor shaft external diameter and go up the connecting piece of the corresponding and sheathed body of cap central through bore in the drive fit mode on the rotor shaft between last cap and the oil-impregnated bearing top, connecting piece bottom level extends the ring edge.
Wherein:
Last cap central through bore periphery forms downward-sloping skew wall face.
Connecting piece ring edge bottom forms to the deep skew wall face in center.
Comply with its center, end on the skew wall face of connecting piece bottom and all establish several guide grooves radially.
The central through bore internal diameter of last cap is less than connecting piece ring edge external diameter.
Connecting piece system makes with plastic cement material.
The connecting piece of body that extends the ring edge for the bottom level extends goes up cap central through bore and apical grafting in the axle bed in conjunction with rotor shaft.
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 cover cap has the pad with rotor shaft bottom apical grafting.
Following cap interior edge face center is provided with the arc shrinkage pool.
The stage casing that rotor shaft is corresponding with oil-impregnated bearing is arranged with more than one annular groove.
Following cap is provided with the through hole that runs through by the center of pad cover cap.
Because comprising, the utility model is provided with central siphon, oil-impregnated bearing, last cap, following cap and rotor shaft; Oil-impregnated bearing is arranged in the central siphon central through bore, and by the close-fitting involution in the central siphon top and bottom ends upper and lower cap restriction location; The rotor shaft the other end is through at cap and oil-impregnated bearing central through bore apical grafting on cap down; Be arranged with inside and outside footpath respectively with the rotor shaft external diameter and go up the connecting piece of the corresponding and sheathed body of cap central through bore in the drive fit mode on the rotor shaft between last cap and the oil-impregnated bearing top, connecting piece bottom level extends the ring edge.Oil-impregnated bearing is inserted in the central siphon central through bore, system forms the location by upper and lower cap restriction, therefore the central shaft hole internal diameter of oil-impregnated bearing can not produce distortion, makes rotor shaft and oil-impregnated bearing shaft hole inner wall keep smoothly contacting, the noise that produces when reducing the rotor rotation; The central siphon top and bottom ends is by upper and lower cap involution, more in last cap below close-fitting sheathed extend go up the cap central through bore and with the connecting piece of axle bed apical grafting, to stop dust, impurity to enter central siphon from the axle bed end, and stop that by last cap or connecting piece lubricant oil leaks from last cap central through bore, make oil-impregnated bearing can possess lubricant oil for a long time, not only leakage proof is effective, the processing assembling is easy, and running is steady, long service life, thereby reaches the purpose of this utility model.
Fig. 1, be the utility model embodiment one decomposition texture schematic isometric.
Fig. 2, be the utility model embodiment one structural representation sectional view.
Fig. 3, be the A portion partial enlarged drawing among Fig. 2.
Fig. 4, be the utility model embodiment two decomposition texture schematic isometric.
Fig. 5, be the utility model embodiment two structural representation sectional views.
Fig. 6, be B portion partial enlarged drawing among Fig. 5.
Below in conjunction with accompanying drawing the utility model is further elaborated.
Embodiment one
As Fig. 1, Fig. 2, shown in Figure 3, the utility model comprises central siphon 1, oil-impregnated bearing 2, last cap 12, following cap 13, rotor shaft 3 and connecting piece 32.
Oil-impregnated bearing 2 can be known copper bearing, self-lubricating bearing or contains the bearing of lubricating oil, and oil-impregnated bearing 2 is provided with central through bore 21, and its outer surface is provided with the conduit 22 that connects its upper and lower end face more than.
Following cap 13 peripheries extend the edge of a wing 130 of the corresponding and fit of periphery and central siphon 1 central through bore 11 vertically upward, and its center is provided with arc shrinkage pool 131.
Connecting piece 32 is for being made inside and outside footpath respectively with rotor shaft 3 external diameters and go up the corresponding and sheathed body of cap 12 central through bores 121 by plastic cement material, its bottom level extends the ring edge 321 of external diameter greater than last cap 12 central through bores 121.
Oil-impregnated bearing 2 is located in the central through bore 11 of central siphon 1, following cap 13 is with the bottom of drive fit involution in central siphon 1, with connecting piece 32 tight collars on rotor shaft 3, make rotor shaft 3 pass oil-impregnated bearing 2 central through bores 21 and shore in the arc shrinkage pool 131 of following cap 13 with its conical end 36, last cap 12 is sheathed on the connecting piece 32 with its central through bore 121, and make connecting piece 32 protrude out axle bed 31 apical graftings of cap 12 and rotor shaft 3, to stop dust, impurity enters central siphon 1 from axle bed 31 ends, last cap 12 edges of a wing 123 in central siphon 1 top, and stop that by the skew wall face 122 of last cap 12 central through bores 121 peripheries and connecting piece 32 ring edge 321 lubricant oil leaks from last cap 12 central through bores 121 with the drive fit involution; Oil-impregnated bearing 2 is limited to be positioned between the upper and lower cap 12,13 of central siphon 1 central through bore 11 by upper and lower cap 12,13, and following cap 13 interior edge face circular arc shrinkage pools 131 are shored for rotor shaft 3; By oil-impregnated bearing 2 conduits 22, the lubricant oil in the central siphon 1 is circulated at oil-impregnated bearing 2 upper and lower ends, and stockpile lubricant oil, to improve lubricating condition by the annular groove 33 in rotor shaft 3 stage casings.
During use, central siphon 1 of the present utility model is fixed on housing 40 bearing supports 41, sets subcoil 42 and upper and lower pole piece 43,44 in central siphon 1 overcoat; Last cap 12 edges of a wing 123 with the drive fit involution in central siphon 1 top; Rotor shaft 3 tops are incorporated on the rotor 30 center axle beds 31 that are provided with the ring magnet of responding to stator coil 42 34, pass cap 12 central through bores 121 and closely fasten with rotor shaft 3 conical end 36 with connecting piece 32, make connecting piece 32 protrude out axle bed 31 apical graftings of cap 12 and rotor 30, enter central siphon 1 with prevention dust, impurity from axle bed 31 ends, and stop that by the skew wall face 122 and the connecting piece 32 ring edge 321 of last cap 12 central through bores 121 peripheries lubricant oil leaks from last cap 12 central through bores 121; Oil-impregnated bearing 2 in central siphon 1 bottom places central siphon 1 central through bore 11, and is sheathed on the rotor shaft 3; Following cap 13 edges of a wing 130 in central siphon 1 bottom, and upwards stay on rotor shaft 3 conical end 36 with its interior edge face circular arc shrinkage pool 131 with the drive fit involution, make rotor 30 axle beds 31 can not touch cap 12, make rotor 30 smooth-going, stable rotations.
Embodiment two
As Fig. 4, Fig. 5, shown in Figure 6, the utility model comprises central siphon 1, oil-impregnated bearing 2, last cap 12a, following cap 14, rotor shaft 3 and connecting piece 36.
Oil-impregnated bearing 2 can be known copper bearing, self-lubricating bearing or contains the bearing of lubricating oil, and oil-impregnated bearing 2 is provided with central through bore 21, and its outer surface is provided with the conduit 22 that connects its upper and lower end face more than.
Last cap 12a is provided with central through bore 121, and its periphery extends the edge of a wing 123 of the corresponding and fit of periphery and central siphon 1 central through bore 11 vertically downward.
Following cap 14 peripheries extend the edge of a wing 140 of the corresponding and fit of periphery and central siphon 1 central through bore 11 vertically upward, its center is provided with penetration hole or bigger concave-arc hole 141, and in penetration hole or bigger concave-arc hole 141 upper cover antifrictions, the flexible metal sheet 15 of tool.
Connecting piece 35 is for being made inside and outside footpath respectively with rotor shaft 3 external diameters and go up the corresponding and sheathed body of cap 12 central through bores 121 by plastic cement material, its bottom level extends the ring edge 350 of external diameter greater than last cap 12 central through bores 121, ring edge 350 bottoms form to the deep skew wall face 351 in center, and on skew wall face 351, all establish several guide grooves 352 radially according to its center, end, to form better water conservancy diversion effect, the lubricant oil guiding is refluxed.
Following cap 14 is shored for rotor shaft 3 with the flexible metal sheet of antifriction, the tool of cover cap on its penetration hole 141 15, uses making rotor shaft 3 obtain elastic support and steadily rotation, and slows down the abrasion of 3 of caps 14 and rotor shaft down and increase the service life.
Oil-impregnated bearing 2 of the present utility model is to insert in central siphon 1 central through bore 11 in the non-mode of closely cooperating, and form the location by upper and lower cap 12,13 (12a, 14) restriction, therefore central shaft hole 21 internal diameters of oil-impregnated bearing 2 can not produce distortion, make rotor shaft 3 and oil-impregnated bearing 2 axis holes 21 inwalls keep smoothly contacting, the noise that produces when reducing rotor 30 rotations; Central siphon 1 top, the bottom is by last, following cap 12,13 (12a, 14) involution, more in last cap 12 (12a) below close-fitting sheathed extend go up cap 12 (12a) central through bore 121 and with the connecting piece 32 (35) of axle bed 31 apical graftings, to stop dust, impurity enters central siphon 1 from axle bed 31 ends, and stop that by the skew wall face 122 of last cap 12 central through bores 121 peripheries and connecting piece 32 ring edge 321 (or the skew wall face 351 of connecting piece 35 and go up guide slot 352) lubricant oil leaks from last cap 12 (12a) central through bore 121, make oil-impregnated bearing 2 can possess lubricant oil for a long time, lubricant oil is stored in, following cap 12,13 (12a, 14) with oil-impregnated bearing 2 and accumulating in the annular groove 33 of rotor shaft 3, to prolong the working life of oil-impregnated bearing.
Claims (12)
1, a kind of group of rotor shaft assembly of establishing oil-impregnated bearing, it comprises that the central siphon, oil-impregnated bearing, last cap, following cap and the end that are provided with central through bore are incorporated into the rotor shaft on the rotor axle bed; Oil-impregnated bearing is arranged in the central siphon central through bore, and by the close-fitting involution in the central siphon top and bottom ends upper and lower cap restriction location; The rotor shaft the other end is through at cap and oil-impregnated bearing central through bore apical grafting on cap down; It is characterized in that on the described rotor shaft of going up between cap and the oil-impregnated bearing top with the drive fit mode be arranged with inside and outside footpath respectively with the connecting piece of the corresponding and sheathed body of rotor shaft external diameter and last cap central through bore, connecting piece bottom level extends the ring edge.
2, according to claim 1 group of rotor shaft assembly of establishing oil-impregnated bearing is characterized in that the described cap central through bore periphery of going up forms downward-sloping skew wall face.
3, according to claim 1 group of rotor shaft assembly of establishing oil-impregnated bearing is characterized in that described connecting piece ring edge bottom forms to the deep skew wall face in center.
4,, it is characterized in that on the skew wall face of described connecting piece bottom according to all establishing several guide grooves radially in its center, end according to claim 1 or 3 described groups of rotor shaft assemblies of establishing oil-impregnated bearing.
5, according to claim 1 group of rotor shaft assembly of establishing oil-impregnated bearing is characterized in that the described central through bore internal diameter of cap of going up is less than connecting piece ring edge external diameter.
6, according to claim 1 group of rotor shaft assembly of establishing oil-impregnated bearing is characterized in that described connecting piece is to make with plastic cement material.
7, according to claim 1 group of rotor shaft assembly of establishing oil-impregnated bearing is characterized in that the described connecting piece of body that extends the ring edge for the bottom level extends to go up cap central through bore and apical grafting in the axle bed in conjunction with rotor shaft.
8, according to claim 1 group of rotor shaft assembly 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.
9, according to claim 1 group of rotor shaft assembly of establishing oil-impregnated bearing is characterized in that described down cap interior edge face cover cap has the pad with rotor shaft bottom apical grafting.
10, according to claim 1 group of rotor shaft assembly of establishing oil-impregnated bearing is characterized in that described cap interior edge face center down is provided with the arc shrinkage pool.
11, according to claim 1 group of rotor shaft assembly of establishing oil-impregnated bearing is characterized in that the described rotor shaft stage casing corresponding with oil-impregnated bearing is arranged with more than one annular groove.
12, according to claim 1 group of rotor shaft assembly of establishing oil-impregnated bearing is characterized in that described cap down is provided with the through hole that runs through by the center of pad cover cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00258222 CN2450415Y (en) | 2000-10-19 | 2000-10-19 | Rotor shaft assembly provided with oiliness bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00258222 CN2450415Y (en) | 2000-10-19 | 2000-10-19 | Rotor shaft assembly provided with oiliness bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2450415Y true CN2450415Y (en) | 2001-09-26 |
Family
ID=33614586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00258222 Expired - Lifetime CN2450415Y (en) | 2000-10-19 | 2000-10-19 | Rotor shaft assembly provided with oiliness bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2450415Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100430606C (en) * | 2004-01-05 | 2008-11-05 | 财团法人工业技术研究院 | High-speed cantilever centrifugal compressor rotor mechanism |
-
2000
- 2000-10-19 CN CN 00258222 patent/CN2450415Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100430606C (en) * | 2004-01-05 | 2008-11-05 | 财团法人工业技术研究院 | High-speed cantilever centrifugal compressor rotor mechanism |
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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 October 19, 2010, the patent expired Contract record no.: 031000030128 Denomination of utility model: Rotor shaft assembly with oil bearing Granted publication date: 20010926 License type: General permission Record date: 2003.5.30 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: COMMON LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2010.10.19, EXPIRATION OF PATENT RIGHT Name of requester: KUNSHAN GUANGXING ELECTRONICS CO., LTD. Effective date: 20030530 |
|
| 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: October 19, 2010 Contract record no.: 031000030128 Denomination of utility model: Rotor shaft assembly with oil bearing Granted publication date: 20010926 License type: General permission Record date: 20030530 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: COMMON LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2010.10.19 Name of requester: KUNSHAN GUANGXING ELECTRONICS CO., LTD. Effective date: 20030530 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20101019 Granted publication date: 20010926 |