CN200994089Y - Motor rotating shaft limiting structure - Google Patents
Motor rotating shaft limiting structure Download PDFInfo
- Publication number
- CN200994089Y CN200994089Y CN 200620165619 CN200620165619U CN200994089Y CN 200994089 Y CN200994089 Y CN 200994089Y CN 200620165619 CN200620165619 CN 200620165619 CN 200620165619 U CN200620165619 U CN 200620165619U CN 200994089 Y CN200994089 Y CN 200994089Y
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- CN
- China
- Prior art keywords
- rotation axis
- central siphon
- limiting structure
- spacing protuberance
- rotor
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Abstract
The utility model relates to a limiting structure for the rotation axis of a motor, and the limiting structure comprises a rotor. The central part of the rotor is fixed with one end of the rotation axis, and the other end of the rotation axis is an end surface which is equipped with a contracted neck part with a relatively small external diameter. The rotation axis of the motor also comprises a base, and the base is equipped with an axle tube and a stator group. A limiting piece and a bearing are equipped in the axle tube, and the rotation axis can be inserted into the axle tube in a rotary way. A via hole is provided on the limiting piece, while a plurality of limiting convex parts are extended from the internal wall of the axle tube to the center. The convex parts are inserted in the contracted neck part of the rotation axis to limit the axial displacement. The limiting convex parts form a non-vertical angle with the inner wall of the via hole. The upper surface and the lower surface of each limiting convex part respectively constitute a relatively large angle and a relatively small angle with the inner wall of the via hole at the inclined state. And the rotation axis goes through from the large angle side to the small angle side. When the limiting convex parts are extruded by the end surface of the rotation axis, the deformation is slight. The structure can avoid the situation that once the limiting convex parts deform, the convex parts can not recover. At the same time, the utility mode can prevent the limiting convex parts from rupture and prevent the rotor from falling off.
Description
Technical field
The utility model relates to the position limiting structure of motor revolving shaft, is meant a kind of long service life especially, is not easy fracture, can prevent rotor generation beat, flutter noise, avoids the position limiting structure of the motor revolving shaft that rotor comes off.
Background technology
As shown in Figure 1, the motor configuration of commonly using comprises:
One rotor 10, central authorities and an end secure bond of a rotation axis 11, and rotation axis 11 other ends are end 12, end 12 is provided with the less necking part of external diameter 13.
One pedestal 20, which is provided with central siphon 21 and stator pack 26, central siphon 21 can be assembling or be shaped on the pedestal 20, and wear-resistant gasket 22, locating part 30, bearing 23 and packing ring 24 have been inserted in inside, be fastened on central siphon 21 top ports places with positioning piece 25 correspondences again, so that with bearing 23, locating part 30 ... firmly be positioned in the central siphon 21 Deng member, stator pack 26 is positioned at central siphon 21 peripheries, and can select the stator of radial windings type or axial winding-type.
Wherein, the ringed perimeter of locating part 30 radially is extended with a plurality of spacing protuberances 31 to central authorities, make between each adjacent spacing protuberance 31 all to be formed with the groove (not shown), and each spacing protuberance 31 central authorities is formed with a clip hole 32.
Therefore, when combined rotor 10 and pedestal 20, must pass through keeper 25 earlier with the rotation axis 11 of rotor 10, packing ring 24 and bearing 23 central authorities, be slightly less than end 12 external diameters of rotation axis 11 because of 32 apertures, clip hole of locating part 30, shown in Fig. 2 A, so must be in the end 12 apply big external force, and by formed groove between aforementioned each adjacent spacing protuberance 31, force spacing protuberance 31 to produce distortion and clip hole 32 is enlarged, shown in Fig. 2 B, so that make end 12 by clip hole 32, then spacing protuberance 31 is replied clip rapidly again in necking part 13, with of the axial displacement of restriction rotation axis 11, prevent that rotor 10 from coming off with respect to central siphon 21.
But the spacing protuberance of locating part bears the end extruding of rotation axis and is out of shape, and forcing in the process that its clip hole enlarges, spacing protuberance is owing to bear excessive bending deformation angle, thereby derives following shortcoming is arranged:
(1) spacing protuberance can't be replied original angle after bearing distortion again: the employed material of locating part itself must possess the above hardness of certain standard, otherwise can't limit the axial displacement of rotation axis really, cause rotor to come off easily, yet will make spacing protuberance more not have elasticity like this.The locating part structure of commonly using, its spacing protuberance is vertical 90 ° of angles with the inwall of ringed perimeter, make each spacing protuberance present level, so when spacing protuberance bears the end extruding of rotation axis and during distortion, spacing protuberance is bent 45 ° of the angles of distortion downwards nearly by originally level, cause after the spacing convex part deformation, often can't reply original angle (shown in Fig. 2 C).
(2) spacing protuberance ruptures because bearing excessive deflection easily: as previously mentioned, in order to take the fundamental strength of locating part itself into account, prevent that rotor from coming off, so must select harder material for use, make spacing protuberance in default of elasticity, and after the end crimp of bearing rotation axis, can't reply original angle, even cause spacing protuberance fracture (shown in Fig. 2 C).
(3) the flutter noise of rotor rotation is big: motor configuration is design one space between the locating part of central siphon inside and wear-resistant gasket, for deposit lubricating oil.After the spacing protuberance fracture of commonly using the locating part structure, the spacing protuberance of this fracture can fall into this oil storage space, and be attached to the end of rotation axis by the stickiness of lubricating oil, cause in the rotation axis rotary course, the spacing protuberance of this fracture can be followed rotation axis and constantly be revolved in oil storage space inside and stir collision, produce noise, even disturb the smoothness of rotation axis rotation, cause the rotor whirl flutter.
(4) the easy beat of rotor: during the rotor rotation, reaction force can make rotor produce a buoyancy that rises, therefore must be by spacing protuberance clip in necking part, in case spline comes off, this moment, spacing protuberance was against the end face of necking part near end one side, and so position shown in imaginary line among Fig. 2 C is when some spacing protuberance of the locating part structure of commonly using ruptures, to cause the strength disequilibrium of pulling of supporting of this end face, cause rotor to produce the rotation beat.
(5) rotor easily comes off: when some spacing protuberance fracture of the locating part structure of commonly using, except meeting causes rotor rotation beat, the bulk strength of relative spacing protuberance also can reduce, so in a single day motor suffer external impacts, just is easy to cause rotor to come off.
If will thoroughly solve the above-mentioned existing variety of problems of locating part structure of commonly using, must exploitation a kind of position limiting structure of brand-new motor revolving shaft.
Summary of the invention
Main purpose of the present utility model is to provide a kind of position limiting structure of motor revolving shaft, and it can prevent rotor generation beat, flutter noise, avoids rotor to come off.
For achieving the above object, the utility model is by the following technical solutions: a kind of position limiting structure of motor revolving shaft is characterized in that comprising: a rotor, central authorities and rotation axis one end secure bond, the described rotation axis other end is the end, and described end is provided with the less necking part of external diameter; One pedestal is provided with central siphon and stator pack, and described central siphon internal configurations finite place piece and bearing, described rotation axis are rotatable and are inserted in wherein; Locating part has a through hole, described through-hole wall is extended with a plurality of spacing protuberances towards central authorities, clip is in the necking part of described rotation axis, to limit its axial displacement, described spacing protuberance must form non-perpendicular angle with described through-hole wall, the above and below of each described spacing protuberance forms on one side big, the less inclination kenel of angle on one side of angle respectively and between the described through-hole wall, one side and described rotation axis must be by the bigger one side of angle to less the passing through of angle.
Above-mentioned the utility model all is formed with groove between each adjacent spacing protuberance, and each described spacing protuberance central authorities is formed with the clip hole, is forced into for the end of described rotation axis.
The above the utility model, the top and bottom ends face of described locating part is provided with at least more than one oil groove separately.
The above the utility model, described central siphon are assembling or are shaped on the described pedestal, and its internal perisporium is provided with the axial Oil Guide ditch more than at least one.
The above the utility model, described central siphon internal configurations have the wear-resistant gasket for the end contact of described rotation axis, and corresponding fastening the in described central siphon top ports place have positioning piece, with firm being positioned in the described central siphon of each member.
The utility model also comprises another technical scheme: a kind of position limiting structure of motor revolving shaft is characterized in that comprising: a rotor, and central authorities and rotation axis one end secure bond, the described rotation axis other end is the end, described end is provided with the less necking part of external diameter; One pedestal is provided with central siphon and stator pack, and described central siphon internal configurations has limit assembly and bearing, and described rotation axis is rotatable and is inserted in wherein; Limit assembly comprises a clasp and a locating ring, described clasp is folder and pulls between described bearing and described locating ring, described clasp has a plurality of spacing protuberances that extend towards central authorities, supply clip in the necking part of described rotation axis, to limit its axial displacement, described spacing protuberance must have angle with the planar shaped at described clasp place, and each described spacing protuberance forms non-parallel in described plane and towards the end of described rotation axis lopsidedness kenel.
In the technique scheme, all be formed with groove between each adjacent described spacing protuberance, the central clip hole that forms of each described spacing protuberance supplies the end of described rotation axis to be forced into.
In the technique scheme, described central siphon is assembling or is shaped on the described pedestal, and its internal perisporium is provided with the axial Oil Guide ditch more than at least one.
In the technique scheme, described central siphon internal configurations has the wear-resistant gasket for the end contact of described rotation axis, and corresponding fastening the in described central siphon top ports place have positioning piece, with firm being positioned in the described central siphon of each member.
Adopt above technical scheme, the utility model is because the spacing protuberance and the through-hole wall of locating part form non-perpendicular angle, make the above and below of each spacing protuberance form on one side big, the less inclination kenel of angle on one side of angle respectively and between the through-hole wall, so when the end of rotation axis by the bigger one side of spacing protuberance angle when the less one side extrusion of angle is forced into and passes through, can reduce its deflection, prevent to exceed elastic deformation, therefore the situation that can't reply after can avoiding spacing protuberance to be squeezed can avoid causing simultaneously spacing protuberance fracture.And, because the spacing protuberance of locating part of the present utility model is not flexible, fracture, long service life, during rotor rotation, the support rotor rotation stably of each spacing protuberance, prevent rotor generation beat, flutter noise, make the spinning movement of rotor steady, smooth and easy, can prevent effectively that more rotor from coming off when rotated.
Description of drawings
Fig. 1 is a combination generalized section of commonly using motor configuration;
Fig. 2 A, Fig. 2 B, Fig. 2 C are the enforcement schematic diagrames of commonly using position limiting structure;
Fig. 3 is the combination generalized section of the utility model motor configuration;
Fig. 4 is the partial exploded view of the utility model motor configuration;
Fig. 5 is the three-dimensional appearance schematic diagram of the utility model position limiting structure;
Fig. 6 A, Fig. 6 B, Fig. 6 C are the enforcement schematic diagrames of the utility model position limiting structure;
Fig. 7 is the another kind of combination generalized section of implementing kenel of the utility model.
Embodiment
For the effect that describes structure of the present utility model, characteristics in detail and reached, existing following preferred embodiment of act and conjunction with figs. are described as follows.
The utility model relates to a kind of position limiting structure of motor revolving shaft, and as shown in Figure 3, Figure 4, it includes:
One rotor 10, central authorities and an end secure bond of a rotation axis 11, and rotation axis 11 other ends are end 12, end 12 is provided with the less necking part of external diameter 13.
One pedestal 20, which is provided with central siphon 21 and stator pack 26, central siphon 21 can be assembling or be shaped on the pedestal 20, and its internal perisporium is provided with the axial Oil Guide ditch 211 more than at least one, wear-resistant gasket 22 has been inserted in central siphon 21 inside, locating part 30, bearing 23 and packing ring 24, be fastened on central siphon 21 top ports places with positioning piece 25 correspondences again, so that with bearing 23, locating part 30 ... Deng firm being positioned in the central siphon 21 of member, wherein, bearing 23 can be an oiliness bearing, ball bearing or hydrodynamic bearing ... etc. any pattern, be rotatable its central authorities that are inserted in for rotation axis 11, stator pack 26 is positioned at central siphon 21 peripheries, and can select the stator structure of radial windings type or axial winding-type.
Again as shown in Figure 5, locating part 30 top and bottom ends faces are provided with at least more than one oil groove 36 separately, and locating part 30 central authorities have a through hole 35, through hole 35 inwalls are extended with a plurality of spacing protuberances 33 towards central authorities, spacing protuberance 33 must form non-perpendicular angle with through hole 35 inwalls, make the above and below of each spacing protuberance 33 form on one side big, the less inclination kenel of angle on one side of angle respectively and between through hole 35 inwalls, moreover, all be formed with groove 34 between each adjacent spacing protuberance 33, and each spacing protuberance 33 central authorities is formed with a clip hole 331.
Therefore, when combined rotor 10 and pedestal 20, must pass through keeper 25 with the rotation axis 11 of rotor 10 in advance, packing ring 24 and bearing 23 central authorities, making rotation axis 11 be the hole that is positioned at above-mentioned each member central authorities rotates, then, rotation axis 11 is penetrated by one side that the spacing protuberance of locating part 30 has than mitre, and to the less one side extruding of angle, because the aperture in the clip hole 331 of each spacing protuberance 33 central authorities is slightly less than the external diameter of the end 12 of rotation axis 11, as shown in Figure 6A, therefore must be in the end 12 apply a bigger external force, and by formed groove 34 between each adjacent spacing protuberance 33, force spacing protuberance 33 to produce distortion and clip hole 331 is enlarged, shown in Fig. 6 B, so that make end 12 by clip hole 331, then spacing protuberance 33 is replied clip rapidly again in necking part 13, shown in Fig. 6 C,, prevent that rotor 10 from coming off with of the axial displacement of restriction rotation axis 11 with respect to central siphon 21.
Because the spacing protuberance 33 and through hole 35 inwalls of the utility model locating part 30 form non-perpendicular angle, make the above and below of each spacing protuberance 33 form on one side big, the less oblique kenel of inclination of angle on one side of angle respectively and between through hole 35 inwalls, so when the end 12 of rotation axis 11 is headed into by one side that spacing protuberance 33 has than mitre, and when the less one side of angle is forced into and passes through, its deflection is little, therefore the situation that can't reply after can avoiding spacing protuberance 33 to be out of shape, avoid spacing protuberance 33 fractures simultaneously, prevent that rotor 10 from coming off.Moreover the top and bottom ends face of locating part 30 of the present utility model is provided with oil groove 36 separately, cooperates central siphon 21 internal perisporium Oil Guide ditches 211, promptly forms a lubrication oil circulation loop, can effectively reduce the frictional resistance of rotation axis 11, improves the running smoothness.
As shown in Figure 7, be the another kind of kenel of implementing of the present utility model, it is after wear-resistant gasket 22, limit assembly 40, bearing 23 and packing ring 24 have been inserted in central siphon 21 inside, be fastened on central siphon 21 top ports places with positioning piece 25 correspondences again, so that with bearing 23, limit assembly 40 ... Deng firm being positioned in the central siphon 21 of member.
Therefore, when combined rotor 10 and pedestal 20, must pass through keeper 25, packing ring 24 and bearing 23 central authorities with the rotation axis 11 of rotor 10 equally in advance, apply big external force again, by the groove that forms between each adjacent spacing protuberance 411 on the clasp 41, force spacing protuberance 411 to produce distortion and clip hole 412 is enlarged, so that make end 12 by clip hole 412, then spacing protuberance 411 is replied clip rapidly again in necking part 13, with of the axial displacement of restriction rotation axis 11, prevent that rotor 10 from coming off with respect to central siphon 21.
Because this spacing protuberance 411 of implementing kenel clasp 41 is same non-parallel in plane, clasp 41 place, and during its assembling, must make the lopsidedness kenel of each spacing protuberance 411 towards wear-resistant gasket 22 places, when former end 12 of bearing rotation axis 11 is pushed, its deflection is little, can avoid to reply after spacing protuberance 411 distortion, and can avoid spacing protuberance 411 fractures, prevent that rotor 10 from coming off.
The utility model is compared with the locating part structure of commonly using, and the utility model includes following characteristics at least as can be known:
(1) stopper protrusion is born after the extruding of turning cylinder end, can reply rapidly original angle: even be subject to The employed material condition of locating part itself, but because stopper protrusion and the through-hole wall of the utility model locating part Form non-perpendicular angle, so that the above and below of each stopper protrusion forms angle on one side respectively and between the through-hole wall Big, the littler inclination kenel of angle on one side, thus when the end of turning cylinder bigger by above-mentioned stopper protrusion angle One side when being forced into and passing through to the extrusion of the littler one side of angle, can reduce its deflection, prevent from exceeding elasticity shape Become, so the situation that can't reply after can avoiding stopper protrusion to be squeezed.
(2) stopper protrusion can not rupture: as previously mentioned, the stopper protrusion of the utility model locating part forms non-perpendicular In the inclination kenel of through-hole wall, so can reduce its deflection, prevent from exceeding elastic deformation, can avoid making simultaneously Become the stopper protrusion fracture.
(3) rotor does not have the flutter noise, good stability: because the stopper protrusion of locating part of the present utility model is not Flexible, fracture, long service life, when rotor rotates, the stably support rotor rotation of each stopper protrusion, Prevent rotor generation beat, flutter noise, make the spinning movement of rotor steady, smooth and easy.
(4) rotor does not come off: as previously mentioned, locating part of the present utility model not only stably support rotor revolve Turn to, can prevent effectively that more rotor from coming off when rotated.
The above only is better enforcement kenel of the present utility model, all application the utility model specifications, power The equivalent structure that sharp claim or accompanying drawing are done changes, and all should be included in the scope of patent protection of the present utility model.
Claims (9)
1, a kind of position limiting structure of motor revolving shaft is characterized in that comprising:
One rotor, central authorities and rotation axis one end secure bond, the described rotation axis other end is the end, described end is provided with the less necking part of external diameter;
One pedestal is provided with central siphon and stator pack, and described central siphon internal configurations finite place piece and bearing, described rotation axis are rotatable and are inserted in wherein;
Locating part has a through hole, described through-hole wall is extended with a plurality of spacing protuberances towards central authorities, clip is in the necking part of described rotation axis, to limit its axial displacement, described spacing protuberance must form non-perpendicular angle with described through-hole wall, the above and below of each described spacing protuberance forms on one side big, the less inclination kenel of angle on one side of angle respectively and between the described through-hole wall, one side and described rotation axis must be by the bigger one side of angle to less the passing through of angle.
2, the position limiting structure of motor revolving shaft according to claim 1 is characterized in that: all be formed with groove between each adjacent spacing protuberance, each described spacing protuberance central authorities is formed with the clip hole, is forced into for the end of described rotation axis.
3, the position limiting structure of motor revolving shaft according to claim 1, it is characterized in that: the top and bottom ends face of described locating part is provided with at least more than one oil groove separately.
4, the position limiting structure of motor revolving shaft according to claim 1 is characterized in that: described central siphon is for assembling or be shaped on the described pedestal, and its internal perisporium is provided with the axial Oil Guide ditch more than at least one.
5, the position limiting structure of motor revolving shaft according to claim 1, it is characterized in that: described central siphon internal configurations has the wear-resistant gasket for the end contact of described rotation axis, and corresponding fastening the in described central siphon top ports place has positioning piece, with firm being positioned in the described central siphon of each member.
6, a kind of position limiting structure of motor revolving shaft is characterized in that comprising:
One rotor, central authorities and rotation axis one end secure bond, the described rotation axis other end is the end, described end is provided with the less necking part of external diameter;
One pedestal is provided with central siphon and stator pack, and described central siphon internal configurations has limit assembly and bearing, and described rotation axis is rotatable and is inserted in wherein;
Limit assembly comprises a clasp and a locating ring, described clasp is folder and pulls between described bearing and described locating ring, described clasp has a plurality of spacing protuberances that extend towards central authorities, supply clip in the necking part of described rotation axis, to limit its axial displacement, described spacing protuberance must have angle with the planar shaped at described clasp place, and each described spacing protuberance forms non-parallel in described plane and towards the end of described rotation axis lopsidedness kenel.
7, as the position limiting structure of motor revolving shaft as described in the claim 6, it is characterized in that: all be formed with groove between each adjacent described spacing protuberance, each described spacing protuberance central authorities forms the clip hole, is forced into for the end of described rotation axis.
8, as the position limiting structure of motor revolving shaft as described in the claim 6, it is characterized in that: described central siphon is for assembling or be shaped on the described pedestal, and its internal perisporium is provided with the axial Oil Guide ditch more than at least one.
9, as the position limiting structure of motor revolving shaft as described in the claim 6, it is characterized in that: described central siphon internal configurations has the wear-resistant gasket for the end contact of described rotation axis, and corresponding fastening the in described central siphon top ports place has positioning piece, with firm being positioned in the described central siphon of each member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620165619 CN200994089Y (en) | 2006-12-13 | 2006-12-13 | Motor rotating shaft limiting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620165619 CN200994089Y (en) | 2006-12-13 | 2006-12-13 | Motor rotating shaft limiting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200994089Y true CN200994089Y (en) | 2007-12-19 |
Family
ID=38947161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620165619 Expired - Fee Related CN200994089Y (en) | 2006-12-13 | 2006-12-13 | Motor rotating shaft limiting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200994089Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101640445A (en) * | 2008-08-01 | 2010-02-03 | 山洋电气株式会社 | Motor |
| CN101227116B (en) * | 2007-01-19 | 2010-05-19 | 建凖电机工业股份有限公司 | Motor structure |
| CN101865213B (en) * | 2009-04-20 | 2013-07-31 | 德昌电机(深圳)有限公司 | Self-aligning device and motor comprising same |
| CN103795174A (en) * | 2014-01-21 | 2014-05-14 | 深圳市大疆创新科技有限公司 | Motor |
-
2006
- 2006-12-13 CN CN 200620165619 patent/CN200994089Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227116B (en) * | 2007-01-19 | 2010-05-19 | 建凖电机工业股份有限公司 | Motor structure |
| CN101640445A (en) * | 2008-08-01 | 2010-02-03 | 山洋电气株式会社 | Motor |
| CN101640445B (en) * | 2008-08-01 | 2013-01-16 | 山洋电气株式会社 | Motor |
| CN101865213B (en) * | 2009-04-20 | 2013-07-31 | 德昌电机(深圳)有限公司 | Self-aligning device and motor comprising same |
| CN103795174A (en) * | 2014-01-21 | 2014-05-14 | 深圳市大疆创新科技有限公司 | Motor |
| CN103795174B (en) * | 2014-01-21 | 2017-02-15 | 深圳市大疆创新科技有限公司 | Motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071219 Termination date: 20111213 |