CN2245298Y - Small motor bearing support - Google Patents
Small motor bearing support Download PDFInfo
- Publication number
- CN2245298Y CN2245298Y CN 95227787 CN95227787U CN2245298Y CN 2245298 Y CN2245298 Y CN 2245298Y CN 95227787 CN95227787 CN 95227787 CN 95227787 U CN95227787 U CN 95227787U CN 2245298 Y CN2245298 Y CN 2245298Y
- Authority
- CN
- China
- Prior art keywords
- bearing support
- bearing pedestal
- lower cover
- centre bore
- loam cake
- 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
Links
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- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model relates to a small motor bearing support. A bearing support with a coil silicon steel sheet motor axle is matched with the central holes of an upper and a lower covers to form the small motor bearing support. The bearing support is made into a convex drum with a flute shape or a cylinder shape, and the middle of the cylinder is provided with teeth, so that the bearing support can be matched with convex ribs in the central holes of the upper and the lower covers. The convex ribs can be pressed and fixed by hands to form meshing engagement. The center of the bearing support can be automatically adjusted, so that the bearing support is in accordance with the motor axis. The small motor bearing support reduces gaps, reduces vibration and noise, reduces production cost, enhances life time, and reduces the defects of axle blocking and axle heating.
Description
A kind of miniature motor bearing pedestal, it belongs to machine field, relates to the fixed structure of motor drive shaft.
Existing miniature motor generally constitutes by loam cake, top chock, belt coil silicon guiding principle sheet motor drive shaft, step and lower cover, be pressed in the centre bore of loam cake and lower cover with the interference fit press-fit with being shaped on band step cylindrical bearing seat, the motor drive shaft of belt coil silicon guiding principle sheet is packed in the bearing saddle bore on the upper and lower cover with matched in clearance, become miniature motor.But because the motor operations revolution is higher, and the dead eye at two ends is not easy to remain on the same center line in making, thereby must be to improve the accuracy of manufacture and to reserve fit clearance and solve this problem.And the gap easily causes rocking and corrosion of axle, can bring the weak point of the raising of cost and improve the accuracy of manufacture, and rock also and can cause magnetic force, and it is stuck with bearing pedestal to produce axle, phenomenons such as seize, thereby the designer changes straight-cylindrical bearing pedestal the protruding drum-like shaped of external diameter protuberance into, and at bearing pedestal cotton circle of inboard cushioning oil and butterfly spring packing ring, comes the center of block and governor motor axle.But this structure is when motor operations during the long period, can cause that heating is followed the string the butterfly spring packing ring and caused power consumption and produce the noise phenomenon, even defective such as magneticaction forfeiture original function occurs being subjected to.
The purpose of this utility model is to disclose a kind of motor bearing seat holding structure, and bearing pedestal can be gone in the centre bore on the upper and lower cover with hand, and it can regulate automatically that centring overcomes can not centring and the deficiency of prior art.
The utility model is realized in the following way, it is made up of loam cake, top chock, belt coil silicon guiding principle sheet motor drive shaft, step and lower cover, adorn an interference fits in loam cake, the lower cover centre bore and can be pressed into the protruding cydariform in the hole and evenly be shaped on the bearing pedestal that inwardly concaves groove in whole outer surface with hand, loam cake and lower cover centre bore inner surface then are shaped on the protuberance convex tendon that is complementary with bearing pedestal.The metal (upper seat also can be made into straight tubular and is shaped on one in the external diameter middle part and is the annular projection of profile of tooth and the convex tendon in the upper and lower covers centre bore becomes interference fits, also the bearing pedestal outer surface can be made and cut out-of-plane around the protruding cydariform, make the be complementary structure of interference fits of four protruding cambered surface spline forms with loam cake, lower cover centre bore inner surface.
This utility model has the following advantages:
1, assembling is easy needn't use machinery pressurization, need only bearing pedestal can be packed into hand to constitute that blocking cooperates and behind the motor drive shaft of packing into, it can regulate the aligning axle center of motor automatically in loam cake and the lower cover centre bore.
2, long service life, long-time rotation can not produce seize, excessively heated axle phenomenon.
3, simplified and added technology and precision, reduced production cost.
Description of drawings:
Accompanying drawing 1 is that a kind of miniature motor bearing pedestal axle is surveyed three-dimensional exploded view.
Accompanying drawing 2 is the straight sleeve shaft bearing of an outer surface belt tooth stereogram.
Accompanying drawing 3 is for cutting out-of-plane bearing pedestal stereogram around the protruding cydariform.
In conjunction with the accompanying drawings a kind of miniature motor bearing pedestal of the utility model is described further below by embodiment:
Embodiment 1, the miniature motor that it is made up of loam cake 1, top chock 2, belt coil silicon guiding principle sheet motor drive shaft 3, step 2, lower cover 4, loam cake 1 profile is made existing general type, on its centre bore 5 inner surfaces, be shaped on the equally distributed convex tendon 6 of inside protuberance, bearing pedestal 2 profiles with holes are made protruding cydariform, also evenly be shaped on its outer surface and prevent to rotate, inwardly concave groove 7, bearing pedestal 2 is packed in the centre bore 5, convex tendon 6 and groove 7 are constituted be meshing with each other and and become transitional tolerance fit form, bearing pedestal 2 usefulness hands are gone in loam cake 1 centre bore 5.Lower cover 4 centre bores are identical with loam cake 1 structure, and step 2 usefulness hands are gone in the centre bore 5 of lower cover 4, two axle journals of belt coil silicon guiding principle sheet motor drive shaft 3 are respectively charged into constitute this miniature motor in top chock 2 and step 2 holes.
Embodiment 3, this miniature motor is identical with embodiment 2 with embodiment 1, it is by loam cake 1 top chock 10, belt coil silicon guiding principle sheet motor drive shaft 3, step 10 and lower cover 4 are formed, the difference of they and embodiment 1 and 2 is, metal (upper seat 10 profiles are protruding cydariform and process all around and cut out four planes 11, centre bore 5 inner surfaces of loam cake 1 and lower cover 4 are made and plane 11 interference fits, the spline form that is complementary is assembled in two bearing pedestal 10 holes with the motor drive shaft 3 of belt coil silicon guiding principle sheet and constitutes this miniature motor.
Claims (3)
1, a kind of miniature motor bearing pedestal, it comprises that loam cake, belt coil silicon steel sheet motor drive shaft, lower cover constitute, it is characterized in that: adorn an interference fits in loam cake and the lower cover centre bore (5) and can use the interior protruding cydariform of hand hand-hole, and on whole outer surface, evenly be shaped on the bearing pedestal (2) that inwardly concaves groove (7), the inner surface of loam cake and lower cover centre bore (5) then is shaped on the protuberance convex tendon (6) that is complementary with bearing.
2, a kind of miniature motor bearing pedestal according to claim 1 is characterized in that: upper and lower bearing pedestal (2) is made straight tubular and is shaped on one outside through the middle part and is the annular projection of profile of tooth and becomes interference fits with convex tendon (6) in the upper and lower cover centre bore (5).
3, a kind of miniature motor bearing pedestal according to claim 1 is characterized in that: bearing pedestal (10) outer surface is made protruding cydariform, and cutting out-of-plane (11) makes the structure that protruding spline form matching transition cooperates with upper and lower cover centre bore (5) inner surface all around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95227787 CN2245298Y (en) | 1995-12-08 | 1995-12-08 | Small motor bearing support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95227787 CN2245298Y (en) | 1995-12-08 | 1995-12-08 | Small motor bearing support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2245298Y true CN2245298Y (en) | 1997-01-15 |
Family
ID=33873542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95227787 Expired - Fee Related CN2245298Y (en) | 1995-12-08 | 1995-12-08 | Small motor bearing support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2245298Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101667760B (en) * | 2008-09-05 | 2012-08-29 | 鸿富锦精密工业（深圳）有限公司 | Fixed seat of axle center of motor |
-
1995
- 1995-12-08 CN CN 95227787 patent/CN2245298Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101667760B (en) * | 2008-09-05 | 2012-08-29 | 鸿富锦精密工业（深圳）有限公司 | Fixed seat of axle center of motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |