CN101865213A - Self-aligning device and motor comprising same - Google Patents
Self-aligning device and motor comprising same Download PDFInfo
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- CN101865213A CN101865213A CN 200910106739 CN200910106739A CN101865213A CN 101865213 A CN101865213 A CN 101865213A CN 200910106739 CN200910106739 CN 200910106739 CN 200910106739 A CN200910106739 A CN 200910106739A CN 101865213 A CN101865213 A CN 101865213A
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- holding device
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- rotating shaft
- transposing
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Abstract
The invention relates to a self-aligning device and a motor comprising the same. The self-aligning device comprises a shell, a rotating shaft, a bearing, an elastic ring and a holding device, wherein the bearing is sleeved on the rotating shaft; the shell forms an accommodating cavity along the axial direction of the rotating shaft; the bearing is accommodated in the accommodating cavity; the elastic ring is formed by bending a spiral spring; the holding device comprises a side wall and an end wall; the end wall is at least partially overlapped with the bearing in the radial direction, so that the bearing can be prevented from escaping from the accommodating cavity; and the elastic ring encircles the rotating shaft and is positioned between the bearing and the holding device or between the holding device and the inner wall of the shell, so that the inclination of the rotating shaft can be prevented. The self-aligning device has a self-aligning function; the elastic ring can adsorb the vibration generated by the rotation of the rotating shaft and the bearing, so that the noise can be reduced; and a radial gap is reserved between the bearing and the holding device or between the holding device and the shell, and the rotating shaft and the bearing can be slightly inclined, so that the self-aligning device is convenient to arrange.
Description
Technical field
The present invention relates to a kind ofly, relate in particular to a kind of motor with oneself device of transposing from the device of transposing.
Background technique
Motor commonly used as permanent magnet DC motor, generally includes stator and rotor, and rotor has generally comprised output shaft, but output shaft rotates by Bearing Installation to stator casing and opposite shell.Output shaft because stressed unbalanced, can produce inclination inevitably behind external load.Therefore, have a rackwork need be installed between output shaft and shell, excessively depart from its normal position to avoid output shaft.
The present invention aims to provide a kind of device of positioning certainly with better positioning effect.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of from transposing device, comprise stator and rotor, described stator comprises shell, described rotor comprises rotating shaft, described rotating shaft is installed on shell by the device of transposing certainly, the described device of transposing certainly comprises the bearing that is placed in the rotating shaft, described shell forms a host cavity along the shaft axis direction, described bearing is contained in the described host cavity, describedly also comprise an elastic ring that curves by helical spring from the device of transposing, and holding device, described holding device comprises sidewall and end wall, described end wall is overlapped at least with bearing diametrically, to prevent that described bearing from escaping from host cavity, described elastic ring is used to prevent axes of rotation skew around described rotating shaft and between bearing and the holding device or between holding device and the outer casing inner wall.
The present invention also provides a kind of motor, comprise stator and rotor, described stator comprises shell, described rotor comprises rotating shaft, described rotating shaft is installed on shell by the device of transposing certainly, the described device of transposing certainly comprises the bearing that is placed in the rotating shaft, described shell forms a host cavity along the shaft axis direction, described bearing is contained in the described host cavity, the described device of transposing certainly also comprises an elastic ring and holding device, described holding device comprises sidewall and end wall, described end wall is overlapped at least with bearing diametrically, to prevent that described bearing from escaping from host cavity, described elastic ring is used to prevent axes of rotation skew around described rotating shaft and between bearing and the holding device or between holding device and the outer casing inner wall.
The beneficial effect that illustrated embodiment of the present invention has is: of the present invention have the self-regulated bit function from the device of transposing; Elastic ring can also absorb the vibration of rotating shaft and bearing rotation generation, thereby reduces noise; Rotating shaft of radial clearance tolerable and bearing between bearing and holding device or holding device and shell tilt a little, are convenient to install.
Description of drawings
The device of transposing certainly that Figure 1A is depicted as one embodiment of the invention is applied to the cross-sectional view of motor.
Figure 1B is depicted as the cross-sectional structure enlarged diagram of the device of transposing certainly of one embodiment of the invention.
Schematic representation when Fig. 1 C and Fig. 1 D are depicted as the rotating shaft of the device of transposing certainly of one embodiment of the invention and bearing and are in heeling condition.
The device of transposing certainly that Fig. 2 A is depicted as another embodiment of the present invention is applied to the cross-sectional view of motor.
Fig. 2 B is depicted as the cross-sectional structure enlarged diagram of the device of transposing certainly of another embodiment of the present invention.
Schematic representation when Fig. 2 C and Fig. 2 D are depicted as the rotating shaft of the device of transposing certainly of another embodiment of the present invention and bearing and are in heeling condition.
Fig. 3 A is depicted as the apparatus structure of the positioning certainly schematic representation according to further embodiment of this invention.
Fig. 3 B is the axial, cross-sectional view of Fig. 3 A.
Embodiment
In order to make technical problem to be solved of the present invention, technological scheme and beneficial effect clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The device of transposing certainly that is depicted as one embodiment of the invention as Figure 1A is applied to the structural representation of motor.Described motor comprises motor housing 10, and described motor housing 10 comprises a closed end 12 and opening end 14.Permanent magnet 16 is fixedly installed in the internal surface of motor housing 10, constitutes the stationary part of motor jointly.One end cap 18 is closed in the opening end 14 of motor housing 10.The rotor portion of described motor comprises rotating shaft 20, be fixed in the armature 22 in the rotating shaft 20 and be installed in the commutator 24 of the close opening end 14 of rotating shaft 20, described commutator 24 is connected with the winding electric of armature 22, and is connected to ABAP Adapter by contacting with carbon brush 19.The two ends of described rotating shaft 20 are installed in the closed end 12 and the opening end 14 of motor housing 10 by two from the device of transposing respectively, and the closed end 12 of described shell 10 and opening end 14 all are provided with a host cavity 122 that extends vertically, are used to hold from transposing device.Be appreciated that ground, the two ends of rotating shaft 20 can respectively be adorned one respectively from transposing device, also can only install one from transposing device at any end of rotating shaft 20.
See also Figure 1B, the described device of transposing certainly comprises the oil-impregnated bearing (sleeve bearing) 30 that is placed in the rotating shaft 20, and described bearing 30 is contained in the described host cavity 122.Be used for the cylindric holding device 40 that prevents that axially bearing 30 from escaping from host cavity 122 described also comprising from the device of transposing.Described holding device 40 comprises cylinder 42 that is fixed to shell 10 internal surfaces and the end face 44 that radially extends internally from cylinder 42.The axial cross section of described bearing 30 is roughly T shape, comprises big portion 32 of diameter and diameter smaller part 34 vertically, and the axial end 322 that joins with diameter smaller part 34 of the big portion 32 of described diameter forms step with the outer surface of diameter smaller part 34.Describedly also comprise an elastic ring 50 that curves by the helical spring end-to-end from the device of transposing, described elastic ring 50 is held in the space that the internal surface of the step of described bearing 30 and holding device 40 surrounds jointly, that is: in the axial direction, elastic ring 50 is held between the axial end of axial end 322 and shell 10, diametrically, elastic ring 50 is held between the cylinder of the outer surface of diameter smaller part 34 and holding device 40, the central axis conllinear of the center line of described elastic ring 50 and rotating shaft 20.The end face 44 of described holding device 40 is overlapped away from the less 34 ones end of diameter diametrically at least with the big portion 32 of the diameter of described bearing 30, is used to stop that bearing 30 escapes from host cavity 122.Have slight radial clearance G between the internal surface of the outer surface of the big portion 32 of described diameter and the cylinder 42 of holding device, tilt for rotating shaft 20 and bearing 30, preferably, described radial clearance G is 0.1 millimeter.Similarly, the big portion 32 of diameter of the end face 44 of described holding device 40 and described bearing 30 also exists small axial clearance away from the less 34 ones end of diameter.
See also Fig. 1 C and Fig. 1 D, when rotating shaft 20 because unbalance stress produces or when assembly process produces, bearing 30 will follow rotating shaft 20 to tilt, one side pressurized of elastic ring 50, thereby generation resiliently deformable, the elastic deformation force who produces will attempt to make rotating shaft 20 and bearing 30 to set back, and therefore, of the present invention have the self-regulated bit function from the device of transposing.And elastic ring 50 can also absorb because rotating shaft and bearing 30 rotate the vibration that produces, thereby reduces noise.
Fig. 2 A and Fig. 2 B are depicted as according to the device of positioning certainly of another embodiment of the present invention and use schematic representation, be with the device of the positioning certainly difference of previous embodiment: in described another embodiment, bearing 30 ' is the cylindric of homogeneous diameter size, holding device 40 ' comprises that bigger end 42 of diameter and diameter are than small end 44, the axial end 422 of the bigger end 42 of described diameter and the outer surface formation step of diameter than small end 44, described bearing 30 ' is contained in the bigger end 42 of described diameter, the outer wall of described bearing 30 ' is close to the inwall of the bigger end 42 of diameter, described diameter than small end 44 away from end face 442 sealing of the bigger end 42 of diameter and replace the end of rotating shaft 20, described elastic ring 50 is positioned at the space that the internal surface of the step of holding device 40 ' and shell 10 surrounds, that is: in the axial direction, elastic ring 50 is held between the axial end of the axial end 422 of the bigger end 42 of diameter and shell 10, diametrically, elastic ring 50 is held between the sidewall of diameter than the outer surface of small end 44 and shell 10.Have small radial clearance G between the outer surface of the bigger end 42 of described diameter and the internal surface of shell 10, tilt for rotating shaft 20 and bearing 30, preferably, described radial clearance G is 0.1 millimeter.In the present embodiment, the two ends of rotating shaft 20 are installed on the two ends of motor housing 10 respectively by aforementioned two types the device of transposing certainly.
Fig. 3 A and Fig. 3 B are depicted as the device of the positioning certainly schematic representation according to further embodiment of this invention.In described another embodiment, holding device is the cylinder 40 of two ends band edge face 42, described holding device 40 can be fixedly installed in the shell of motor, the bearing 30 that most layers pile up vertically is located between the both ends of the surface 42 of cylinder, has at least one deck to be provided with excision portion at close outer wall place in the bearing 30 of two adjacent layers and is contained in it for elastic ring 50 to form containing space.Preferably, two forward surfaces of the bearing 30 of two adjacent layers all are provided with excision portion, and the excision portion of the bearing 30 of two adjacent layers forms containing space jointly, are contained in it for elastic ring 50.In the present embodiment, the described device of transposing certainly comprises 4 layers of bearing.Rotating shaft 20 and bearing 30 preferably, have less radial clearance between the radially-outer surface of described bearing and cylinder 40 inwalls, so that can tilt.
Bearing 30 in the above embodiment of the present invention can be made by metallic material, stupalith etc.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. one kind from the device of transposing, comprise shell, rotating shaft, be placed in the bearing in the rotating shaft, described shell is formed with host cavity along the shaft axis direction, described bearing is contained in the described host cavity, it is characterized in that: describedly also comprise an elastic ring that curves by helical spring from the device of transposing, and holding device, described holding device comprises sidewall and end wall, described end wall is overlapped at least with bearing diametrically, escape from host cavity to prevent described bearing, described elastic ring is used to prevent axes of rotation skew around described rotating shaft and between bearing and the holding device or between holding device and the outer casing inner wall.
2. as claimed in claim 1 it is characterized in that: one of them is provided with step described bearing and holding device from transposing device, and described elastic ring remains between described step and the shell.
3. as claimed in claim 2 from the device of transposing, it is characterized in that: described bearing comprises big portion of diameter and diameter smaller part vertically, and the described diameter axial end that joins with the diameter smaller part of portion and the outer surface of diameter smaller part greatly constitutes described step.
4. as claimed in claim 3 from transposing device, it is characterized in that: described holding device is cylindric, the sidewall and the shell of holding device fix, the end wall of holding device is formed at the terminal of sidewall and is positioned at the end outside away from the diameter smaller part of the big portion of diameter of described bearing, have radial clearance between the outer surface of the big portion of described diameter and holding device inside surface of side wall, there is axial clearance in the end away from the diameter smaller part of the big portion of the end wall of described holding device and described diameter.
5. as claimed in claim 1 or 2 from transposing device, it is characterized in that: described holding device is cylindric, comprise that bigger end of diameter and diameter are than small end, described bearing is contained in the bigger end of described diameter, away from the sealing of the end face of the bigger end of diameter and replace the end of rotating shaft, the axial end of the bigger end of described diameter and diameter constitute described step than the outer surface of small end to described diameter than small end.
6. as claimed in claim 5 from transposing device, it is characterized in that: have radial clearance between the outer surface of the bigger end of diameter of described holding device and the internal surface of shell.
7. as claimed in claim 1 from transposing device, it is characterized in that: described holding device is cylindric, the bearings that the described device of transposing certainly comprises that most layers pile up vertically have at least one deck to be provided with excision portion and are contained in it for an elastic ring to form containing space in two adjacent layers.
8. motor, comprise stator and rotor, described stator comprises shell, described rotor comprises rotating shaft, described rotating shaft is installed on shell by the device of transposing certainly, the described device of transposing certainly comprises the bearing that is placed in the rotating shaft, described shell forms a host cavity along the shaft axis direction, described bearing is contained in the described host cavity, it is characterized in that: the described device of transposing certainly also comprises elastic ring and holding device, described holding device comprises sidewall and end wall, described end wall is overlapped at least with bearing diametrically, to prevent that described bearing from escaping from host cavity, described elastic ring is used to prevent axes of rotation skew around described rotating shaft and between bearing and the holding device or between holding device and the outer casing inner wall.
9. motor as claimed in claim 8, it is characterized in that: described bearing comprises big portion of diameter and diameter smaller part vertically, and described elastic ring is positioned at the diameter space that surrounds jointly of the internal surface of the outer surface of the axial end that joins with the diameter smaller part, the diameter smaller part of portion and holding device greatly.
10. motor as claimed in claim 9, it is characterized in that: described holding device is cylindric, comprise sidewall that is fixed to inner surface of outer cover and the end wall that radially extends internally from sidewall, end away from the diameter smaller part of the big portion of the diameter of described end wall and described bearing is radially overlapped at least, have radial clearance between the outer surface of the big portion of described diameter and holding device inside surface of side wall, there is axial clearance in the end away from the diameter smaller part of the big portion of the end wall of described holding device and described diameter.
11. motor as claimed in claim 8, it is characterized in that: described holding device is cylindric, comprise that bigger end of a diameter and diameter are than small end, described bearing is contained in the bigger end of described diameter, described diameter seals and replaces the end of rotating shaft away from the end face of the bigger end of diameter than small end, described elastic ring is positioned at the axial end, diameter of the bigger end of described diameter than the outer surface of small end, and the space that surrounds of the internal surface of shell, has radial clearance between the outer surface of the bigger end of described diameter and the internal surface of shell.
12. motor as claimed in claim 8, it is characterized in that: described holding device is cylindric, the bearings that the described device of transposing certainly comprises that most layers pile up vertically have at least one deck to be provided with excision portion and are contained in it for an elastic ring to form containing space in two adjacent layers.
13. as each described motor of claim 8 to 12, it is characterized in that: described elastic ring is formed by the bending of helical spring end-to-end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910106739 CN101865213B (en) | 2009-04-20 | 2009-04-20 | Self-aligning device and motor comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910106739 CN101865213B (en) | 2009-04-20 | 2009-04-20 | Self-aligning device and motor comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101865213A true CN101865213A (en) | 2010-10-20 |
| CN101865213B CN101865213B (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910106739 Expired - Fee Related CN101865213B (en) | 2009-04-20 | 2009-04-20 | Self-aligning device and motor comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101865213B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105591488A (en) * | 2014-10-23 | 2016-05-18 | 博西华电器（江苏）有限公司 | Motor and domestic appliance provided with motor |
| CN108599440A (en) * | 2013-05-21 | 2018-09-28 | 浙江三花制冷集团有限公司 | Bearing and end cap connection structure, motor |
| CN109149859A (en) * | 2018-08-04 | 2019-01-04 | 温岭市东菱电机有限公司 | A kind of adjustable motor of centering |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5677585A (en) * | 1995-01-31 | 1997-10-14 | Sony Corporation | Motor |
| JP2002354747A (en) * | 2001-05-21 | 2002-12-06 | Sony Corp | Spindle motor and disc storage device |
| CN2870279Y (en) * | 2005-11-05 | 2007-02-14 | 中山大洋电机股份有限公司 | Oil-contained bearing structure of motor |
| CN200994089Y (en) * | 2006-12-13 | 2007-12-19 | 建凖电机工业股份有限公司 | Motor rotating shaft limiting structure |
-
2009
- 2009-04-20 CN CN 200910106739 patent/CN101865213B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108599440A (en) * | 2013-05-21 | 2018-09-28 | 浙江三花制冷集团有限公司 | Bearing and end cap connection structure, motor |
| CN105591488A (en) * | 2014-10-23 | 2016-05-18 | 博西华电器（江苏）有限公司 | Motor and domestic appliance provided with motor |
| CN109149859A (en) * | 2018-08-04 | 2019-01-04 | 温岭市东菱电机有限公司 | A kind of adjustable motor of centering |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101865213B (en) | 2013-07-31 |
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Granted publication date: 20130731 Termination date: 20180420 |