CN103956856A - Built-in speed reducer of motor - Google Patents
Built-in speed reducer of motor Download PDFInfo
- Publication number
- CN103956856A CN103956856A CN201410230943.3A CN201410230943A CN103956856A CN 103956856 A CN103956856 A CN 103956856A CN 201410230943 A CN201410230943 A CN 201410230943A CN 103956856 A CN103956856 A CN 103956856A
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- motor
- gear
- rotor
- built
- speed reducer
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention belongs to the field of motor speed reducers and particularly relates to a built-in speed reducer of a motor. The built-in speed reducer of the motor comprises a motor speed reducer casing (22) and a speed reducing mechanism arranged in the casing and is characterized by further comprising a motor stator (12) and a motor rotor (3), wherein the motor stator is an inner stator and fixed in the motor speed reducer casing. The motor rotor is an outer rotor and sleeved by a gear, and the gear is externally meshed with an output gear (1) of the speed reducing mechanism. The built-in speed reducer of the motor integrates the motor and the speed reducing mechanism in the motor speed reducer casing, the space utilization rate is high, and output torque is large.
Description
Technical field
The invention belongs to decelerator field, be specifically related to a kind of electric motor built-in decelerator.
Background technology
Two kinds of forms of the many employings of current motor reducer used, the one, motor output shaft is directly connected with reducer input shaft; The 2nd, conventional inner rotor motor and decelerator are integrated in reducer shell, rotor is connected with the power shaft of reducing gear.Yet the motor reducer axial dimension that these two kinds of modes form increases particularly evident, causes volume obviously bigger than normal.Seriously limited while using in such as electric motor car, electro-tricycle, electric automobile etc. has the equipment of strict demand to motor reducer volume, this be need improved.
Summary of the invention
Technical problem to be solved by this invention is to provide and a kind of motor is integrated in reducer shell, can realize high pulling torque output, the electric motor built-in decelerator that takes up room little.
For addressing the above problem, the technical solution adopted in the present invention is.
Electric motor built-in decelerator, comprise motor reducer housing (22) and be arranged at the reducing gear in housing, it is characterized in that: it also comprises motor stator (12) and rotor (3), and described motor stator is internal stator, is fixed in motor reducer housing.Rotor is external rotor, and outer cover cogged, with output gear (1) external toothing of reducing gear.
Press such scheme, the form with spline or other close reliable forms between described motor rotor punching sheet and overcoat gear connects.
Press such scheme, described rotor overcoat gear can be spur gear, helical gear, bevel gear, worm screw etc.
Compared with prior art, the invention has the advantages that: this electric motor built-in decelerator is by being integrated in motor in motor reducer housing, and space availability ratio is high, and axial dimension is little.Meanwhile, this electric motor built-in decelerator adopts the mode of external rotor electric machine overcoat gear, it is increased in unidimensional situation lower rotor part moment of inertia, thereby improved the output torque of decelerator, realizes high pulling torque output.
Accompanying drawing explanation
Fig. 1 is electric motor built-in reducer structure schematic diagram.In figure, 1. output gear, 2. output shaft, 3. motor outer rotor, 4. sealing ring, the 5. right end cover of motor, 6. through hole bearing chamber, 7. deep groove ball bearing, 8. taper roll bearing, 9. right end cap, 10. bolt, 11. tight lock screws, 12. electric motor internal stators, 13. internal stator hollow shafts, 14. taper roll bearings, 15. line outlets, 16. bolts, 17. left end caps, 18. deep groove ball bearings, 19. through hole bearing chambers, the left end cover of 20. motor, 21. tight lock screws, 22. motor housings.
Fig. 2 is electric motor built-in decelerator motor part-structure schematic diagram.
Embodiment
Core of the present invention is to provide and a kind of motor is integrated in reducer shell, can realize high pulling torque output, the electric motor built-in decelerator that takes up room little.
In order to make the art personnel understand better the present invention program, below in conjunction with drawings and Examples, the present invention is described in further detail.
With reference to figure 1, Fig. 2.Electric motor built-in decelerator comprises external rotor electric machine, and described external rotor electric machine comprises electric motor internal stator (12) and motor outer rotor (3); It is upper that electric motor internal stator (12) is fixed on motor housing (22), and motor outer rotor (3) is coaxially installed on outside electric motor internal stator (12), and motor outer rotor two ends are provided with the left end cover of motor (20) and the right end cover of motor (5); The left end cover of motor (20) central authorities are shaped with through hole bearing chamber (19), and through hole bearing chamber is built-in with deep groove ball bearing (18), and the right end cover of motor (5) central authorities are shaped with through hole bearing chamber (6), and through hole bearing chamber is built-in with deep groove ball bearing (7); Internal stator hollow shaft (13) extends to left end cap (17) and right end cap (9) and passes through end spline and left end cap (17) and right end cap (9) interference fit through through hole bearing chamber (6), (19) and built-in deep groove ball bearing (7), (18); By bolt (10), (16), left end cap (17) and right end cap (9) are fixed on motor housing (22); By tight lock screw (21), (11), the left end cover of motor (20) and right end cover (5) are connected on motor outer rotor (3).
For being realized, the left end cover of motor (20) and right end cover (5) and motor housing relatively rotate, flange at left end cover (20) is also provided with taper roll bearing (14) outward, at the flange of right end cover (5), is also provided with taper roll bearing (8) outward.
In order to make electrical machine insulation, at motor seal end cap and external rotor junction, be also provided with sealing ring (4).
Described electric motor built-in motor reducer also comprises output gear (2) and output shaft (1), and the overcoat gear external toothing of described output gear (2) and rotor (3) also realizes power output by output shaft (1).
Described left end cap (17) further comprises line outlet (15), and power line (not shown) is built in internal stator hollow shaft, through line outlet (15), is connected with externally fed power supply.
Claims (3)
1. electric motor built-in decelerator, comprise motor reducer housing (22) and be arranged at the reducing gear in housing, it is characterized in that: it also comprises motor stator (12) and rotor (3), described motor stator is internal stator, be fixed in motor reducer housing, rotor is external rotor, and outer cover cogged, with output gear (1) external toothing of reducing gear.
2. motor reducer according to claim 1, is characterized in that: between described motor rotor punching sheet and overcoat gear, with spline or other close reliable forms, connect.
3. motor reducer according to claim 1, is characterized in that: described rotor overcoat gear can be spur gear, helical gear, bevel gear, worm screw etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410230943.3A CN103956856A (en) | 2014-05-29 | 2014-05-29 | Built-in speed reducer of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410230943.3A CN103956856A (en) | 2014-05-29 | 2014-05-29 | Built-in speed reducer of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103956856A true CN103956856A (en) | 2014-07-30 |
Family
ID=51334101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410230943.3A Pending CN103956856A (en) | 2014-05-29 | 2014-05-29 | Built-in speed reducer of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103956856A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534059A (en) * | 2014-11-19 | 2015-04-22 | 刘金波 | Hub type power gear |
| CN104759651A (en) * | 2015-04-15 | 2015-07-08 | 常州优思塔精密机械有限公司 | Axial power tool turret of built-in power motor |
| CN109120097A (en) * | 2017-06-23 | 2019-01-01 | 西华大学 | Outer rotor direct driving motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2764043Y (en) * | 2005-01-24 | 2006-03-08 | 綦学尧 | Speed reducing motor with external rotor harmanic gear |
| CN102214974A (en) * | 2011-05-27 | 2011-10-12 | 山东理工大学 | Speed-increasing generator for range extender of electric automobile |
| CN203239880U (en) * | 2012-05-24 | 2013-10-16 | 常州至精精机有限公司 | Gear reducer |
| CN103795171A (en) * | 2014-02-19 | 2014-05-14 | 哈尔滨工程大学 | Magnetic coupling dual-seal and synchronous transmission device for deepwater double-output-shaft motor |
| CN203951316U (en) * | 2014-05-29 | 2014-11-19 | 西华大学 | Electric motor built-in decelerator |
-
2014
- 2014-05-29 CN CN201410230943.3A patent/CN103956856A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2764043Y (en) * | 2005-01-24 | 2006-03-08 | 綦学尧 | Speed reducing motor with external rotor harmanic gear |
| CN102214974A (en) * | 2011-05-27 | 2011-10-12 | 山东理工大学 | Speed-increasing generator for range extender of electric automobile |
| CN203239880U (en) * | 2012-05-24 | 2013-10-16 | 常州至精精机有限公司 | Gear reducer |
| CN103795171A (en) * | 2014-02-19 | 2014-05-14 | 哈尔滨工程大学 | Magnetic coupling dual-seal and synchronous transmission device for deepwater double-output-shaft motor |
| CN203951316U (en) * | 2014-05-29 | 2014-11-19 | 西华大学 | Electric motor built-in decelerator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534059A (en) * | 2014-11-19 | 2015-04-22 | 刘金波 | Hub type power gear |
| CN104759651A (en) * | 2015-04-15 | 2015-07-08 | 常州优思塔精密机械有限公司 | Axial power tool turret of built-in power motor |
| CN109120097A (en) * | 2017-06-23 | 2019-01-01 | 西华大学 | Outer rotor direct driving motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140730 |