WO2020077820A1 - 同轴双输出机构 - Google Patents

同轴双输出机构 Download PDF

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Publication number
WO2020077820A1
WO2020077820A1 PCT/CN2018/122676 CN2018122676W WO2020077820A1 WO 2020077820 A1 WO2020077820 A1 WO 2020077820A1 CN 2018122676 W CN2018122676 W CN 2018122676W WO 2020077820 A1 WO2020077820 A1 WO 2020077820A1
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WO
WIPO (PCT)
Prior art keywords
magnetic
rotor
bracket
motor
assembly
Prior art date
Application number
PCT/CN2018/122676
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English (en)
French (fr)
Inventor
王学超
Original Assignee
广东美的白色家电技术创新中心有限公司
美的集团股份有限公司
Priority date (The priority date 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 date listed.)
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Application filed by 广东美的白色家电技术创新中心有限公司, 美的集团股份有限公司 filed Critical 广东美的白色家电技术创新中心有限公司
Publication of WO2020077820A1 publication Critical patent/WO2020077820A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H13/00—Gearing for conveying rotary motion with constant gear ratio by friction between rotary members
    • F16H13/10—Means for influencing the pressure between the members
    • F16H13/12—Means for influencing the pressure between the members by magnetic forces
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/02—Machines with one stator and two or more rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters

Definitions

  • This application relates to the technical field of motors, and more specifically, to a coaxial dual output mechanism.
  • This application aims to solve at least one of the technical problems in the prior art.
  • the present application proposes a coaxial dual output mechanism, which has a compact structure and low noise.
  • the coaxial dual-output mechanism includes: a housing provided with a supporting end cover, the supporting end cover separating the interior of the housing from a motor cavity and a magnetic tooth cavity, The supporting end cover is provided with an intermediate hole, the casing is provided with a first output hole communicating with the magnetic tooth cavity; a motor assembly, the motor assembly is provided in the motor cavity, the motor assembly includes a motor stator , A motor rotor and a motor shaft, the motor stator is connected with the casing, the motor rotor is matched with the motor stator, the motor shaft is connected with the motor rotor, and the motor shaft starts from the middle hole Extending into the magnetic tooth cavity; a magnetic tooth component, the magnetic tooth component is provided in the magnetic tooth cavity, the magnetic tooth component includes: an inner magnetic rotor, an outer magnetic rotor and a magnetic adjustment component, the inner A magnetic rotor is connected to the motor shaft, the outer magnetic rotor is sheathed on the inner magnetic rotor, the magnetic adjustment component is
  • the coaxial dual output mechanism of the embodiment of the present application by adopting the structural form in which the motor assembly and the magnetic tooth assembly are integrated, the coaxial power dual output is realized by magnetic coupling, and there is no wear due to no direct contact engagement , Fatigue and other problems, the system noise is small, the structure is more compact, and the production and maintenance costs are low.
  • the magnetic adjustment component includes a bracket and a plurality of magnetic adjustment blocks provided on the bracket, and the plurality of magnetic adjustment blocks are disposed around the inner magnetic rotor.
  • the number of magnetic pole pairs of the inner magnetic rotor is Pi
  • the number of magnetic pole pairs of the outer magnetic rotor is Po
  • the number of the magnetizing blocks is Ns
  • the bracket includes: a bracket body, the bracket body is formed in a cylindrical shape, one end of the bracket body is connected to the supporting end cover, and the other end of the bracket body A plurality of installation grooves are provided on the end surface, and the plurality of installation grooves are spaced apart along the circumferential direction of the bracket body, and each of the installation grooves is open on the inner circumferential surface and the outer circumferential surface of the bracket body.
  • the magnetizing blocks are matched with each other in the plurality of installation slots one by one; a bracket end ring, the bracket end ring is a circular ring, and the bracket end ring is connected to the support body away from the support end Cover the end face.
  • the shape of the surface of each of the magnetic adjustment blocks on both sides in the circumferential direction is exactly the same as the shape of the inner wall surface of the corresponding mounting groove, and the magnetic adjustment block is the smallest in the circumferential direction
  • the arc length at the width is Lm
  • the arc length of the magnetizing block on the outer peripheral side is Lo
  • the arc length of the magnetizing block on the inner peripheral side is Li
  • Lm, Lm and Li satisfy the relationship of Lm ⁇ Li and Lm ⁇ Lo.
  • the magnetic adjustment component includes an outer bridge tube, the outer bridge tube is sheathed on the bracket body, and each of the magnetic adjustment blocks is fixedly connected to the outer bridge tube On the inner peripheral wall.
  • the inner magnetic rotor includes: an inner rotor sleeve formed into a cylindrical shape; a plurality of inner magnetic blocks, the plurality of inner magnetic blocks being spaced circumferentially Distributed on the inner rotor sleeve; wherein, each of the inner magnetic blocks is posted on the outer circumferential surface of the inner rotor sleeve, or each of the inner magnetic blocks is embedded in the inner rotor sleeve.
  • the external magnetic rotor includes: an external rotor sleeve formed into a cylindrical shape; a plurality of external magnetic blocks, the plurality of external magnetic blocks being spaced circumferentially Distributed on the outer rotor sleeve; wherein, each of the outer magnetic blocks is posted on the inner circumferential surface of the outer rotor sleeve, or each of the outer magnetic blocks is embedded in the outer rotor sleeve .
  • the outer magnetic rotor includes: an outer rotor front bracket, the outer rotor front bracket is formed in a disc shape that is sheathed on the inner output shaft, and the outer output shaft is integrally formed on the outer rotor front bracket
  • the outer periphery of the outer rotor front bracket is connected to one end of the outer rotor sleeve; the outer rotor rear bracket, the outer rotor rear bracket is coated on the outside of the magnetic adjustment assembly, and the outer rotor rear bracket is connected to the At the other end of the outer rotor sleeve, the outer rotor back bracket is supported on the casing by the bearing assembly.
  • outer peripheral wall of the outer rotor sleeve is provided with a plurality of circumferentially spaced connection hole grooves, and the outer rotor sleeve is respectively connected to the outer rotor front bracket through a connecting piece fitted in the connection hole groove 3.
  • the outer rotor rear bracket is connected.
  • the outer peripheral wall of the outer rotor sleeve is provided with structural holes for adding glue to maintain dynamic balance.
  • the motor shaft and the inner output shaft are integral shafts.
  • the bearing assembly includes: a first bearing provided at the first output hole and connected to the outer output shaft; a second bearing, the second The bearing is connected to the supporting end cover and connected to the outer rotor.
  • the bearing assembly includes: a third bearing, the third bearing is provided at the middle hole and is sheathed on the motor shaft; a fourth bearing, the fourth bearing is connected to the casing
  • the fourth bearing is located at an end of the motor assembly away from the magnetic tooth assembly, and the fourth bearing is sheathed on the motor shaft.
  • the end of the motor shaft away from the magnetic tooth assembly is connected with a heat dissipation wind wheel.
  • the casing is provided with a second output hole communicating with the motor cavity, one end of the motor shaft extends from the second output hole, and the heat dissipation wind wheel is located outside the casing .
  • FIG. 1 is a schematic diagram of a coaxial dual output mechanism according to an embodiment of the present application.
  • FIG. 2 is a cross-sectional view of FIG. 1 along line A-A;
  • FIG. 3 is a cross-sectional view of FIG. 1 along line B-B;
  • FIG. 4 is a perspective view of a coaxial dual output mechanism according to an embodiment of the present application.
  • FIG. 5 is another perspective view of a coaxial dual output mechanism according to an embodiment of the present application.
  • FIG. 6 is a plan view of a coaxial dual output mechanism according to an embodiment of the present application.
  • FIG. 7 is a perspective view of an inner magnetic rotor of a coaxial dual output mechanism according to an embodiment of the present application.
  • FIG. 8 is a front view of an inner magnetic rotor of a coaxial dual output mechanism according to an embodiment of the present application.
  • FIG. 9 is a cross-sectional view of an inner magnetic rotor of a coaxial dual output mechanism according to an embodiment of the present application.
  • FIG. 10 is a perspective view of an inner magnetic rotor of a coaxial dual output mechanism according to another embodiment of the present application.
  • FIG. 11 is a front view of an inner magnetic rotor of a coaxial dual output mechanism according to another embodiment of the present application.
  • FIG. 12 is a cross-sectional view of an inner magnetic rotor of a coaxial dual output mechanism according to another embodiment of the present application.
  • FIG. 13 is a perspective view of an external magnetic rotor of a coaxial dual output mechanism according to an embodiment of the present application.
  • FIG. 14 is a front view of an external magnetic rotor of a coaxial dual output mechanism according to an embodiment of the present application
  • FIG. 15 is a perspective view of an external magnetic rotor of a coaxial dual output mechanism according to another embodiment of the present application.
  • 16 is a front view of an external magnetic rotor of a coaxial dual output mechanism according to another embodiment of the present application.
  • 17 is a cross-sectional view of an external magnetic rotor of a coaxial dual output mechanism according to another embodiment of the present application.
  • FIG. 18 is a perspective view of a magnetic adjustment component of a coaxial dual output mechanism according to an embodiment of the present application.
  • FIG. 19 is a perspective view of another perspective view of the magnetic adjustment component of the coaxial dual output mechanism according to an embodiment of the present application.
  • FIG. 20 is an exploded view of a magnetic adjustment component of a coaxial dual output mechanism according to an embodiment of the present application.
  • 21 is a plan view of a magnetic adjustment component of a coaxial dual output mechanism according to an embodiment of the present application.
  • FIG. 23 is a cross-sectional view of a magnetic adjustment component of a coaxial dual output mechanism according to an embodiment of the present application.
  • FIG. 24 is a perspective view of a magnetic adjustment component of a coaxial dual output mechanism according to another embodiment of the present application.
  • 25 is a perspective view of another perspective view of the magnetic adjustment component of the coaxial dual output mechanism according to another embodiment of the present application.
  • FIG. 26 is an exploded view of a magnetic adjustment component of a coaxial dual output mechanism according to another embodiment of the present application.
  • FIG. 27 is a top view of a magnetic adjustment component of a coaxial dual output mechanism according to another embodiment of the present application.
  • FIG. 28 is a cross-sectional view of a magnetic adjustment component of a coaxial dual output mechanism according to another embodiment of the present application.
  • 10 housing; 10a: magnetic tooth cavity; 11: supporting end cover;
  • 30 magnetic tooth assembly; 31: inner magnetic rotor; 311: inner rotor sleeve; 312: inner magnetic block; 32: outer magnetic rotor; 321: outer rotor sleeve; 3211: connecting hole slot; 3212: structural hole slot; 322: External magnetic block; 323: front bracket of external rotor; 324: rear bracket of external rotor;
  • 33 magnetic adjustment assembly
  • 331 bracket
  • 3311 bracket main body
  • 3312 mounting groove
  • 3313 bracket end ring
  • 332 magnetic adjustment block
  • 333 outer bridge tube
  • 50 bearing assembly; 51: first bearing; 52: second bearing; 53: third bearing; 54: fourth bearing;
  • connection should be understood in a broad sense, for example, it can be fixed or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components.
  • installation should be understood in a broad sense, for example, it can be fixed or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components.
  • the coaxial dual output mechanism 100 according to the embodiment of the present application will be described below with reference to FIGS.
  • the coaxial dual output mechanism 100 includes a casing 10, a motor assembly 20, a magnetic tooth assembly 30, an output shaft assembly 40 and a bearing assembly 50.
  • a supporting end cover 11 is provided in the casing 10, and the supporting end cover 11 separates the interior of the casing 10 from the motor cavity and the magnetic tooth cavity 10a, the motor assembly 20 is provided in the motor cavity, and the magnetic tooth assembly 30 is provided in the magnetic In the tooth cavity 10a, an intermediate hole is provided on the supporting end cover 11, and a first output hole communicating with the magnetic tooth cavity 10a is provided on the casing 10.
  • the motor assembly 20 includes a motor stator 21, a motor rotor 22, and a motor shaft 23, wherein the motor stator 21 is connected to the housing 10, the motor rotor 22 cooperates with the motor stator 21, the motor shaft 23 is connected to the motor rotor 22, and the motor shaft 23 and the motor rotor 22 can rotate synchronously, and the motor shaft 23 extends into the magnetic tooth cavity 10a from the middle hole.
  • the magnetic tooth assembly 30 includes an inner magnetic rotor 31, an outer magnetic rotor 32, and a magnetic adjustment assembly 33.
  • the inner magnetic rotor 31 is connected to the motor shaft 23, the inner magnetic rotor 31 and the motor shaft 23 rotate synchronously, and the outer magnetic rotor 32 is sheathed inside
  • the lower end of the magnetic adjustment assembly 33 is cooperatively connected to the supporting end cover 11, and the upper end of the magnetic adjustment assembly 33 extends between the inner magnetic rotor 31 and the outer magnetic rotor 32.
  • the magnetic component 33 modulates the magnetic field so that the inner magnetic rotor 31 and the outer magnetic rotor 32 are linked by magnetic coupling, and the magnetic adjustment component 33 coordinates the magnetic field between the inner magnetic rotor 31 and the outer magnetic rotor 32, that is, the inner magnetic rotor 31 and the outer magnetic
  • the magnetic field harmonics can be matched between the rotors 32 by the magnetic modulation component 33, and the inner magnetic rotor 31 is linked by magnetic coupling to realize the rotation of the inner magnetic rotor 31 and the outer magnetic rotor 32.
  • the inner magnetic rotor 31 and the outer magnetic rotor 32 can rotate in opposite directions, for example, the inner magnetic rotor 31 rotates clockwise around the motor shaft 23, and the outer magnetic rotor 32 rotates counterclockwise around the motor shaft 23, thereby achieving coaxial
  • the inner output shaft 41 and the outer output shaft 42 are counter-rotated.
  • the output shaft assembly 40 includes an inner output shaft 41 and an outer output shaft 42, the outer output shaft 42 is sheathed on the inner output shaft 41, and one end of the inner output shaft 41 (as shown in FIG. 2 is the lower end of the inner output shaft 41 ) Is connected to the inner magnetic rotor 31, the other end of the inner output shaft 41 (the upper end of the inner output shaft 41 shown in FIG. 2) extends from the first output hole, and one end of the outer output shaft 42 (as shown in FIG. 2)
  • the lower end of the outer output shaft 42 is connected to the outer magnet rotor 32, the other end of the outer output shaft 42 (the upper end of the outer output shaft 42 shown in FIG. 2) extends from the first output hole, and the bearing assembly 50 is provided in the casing 10, and supports the motor rotor 22, the inner magnetic rotor 31 and the outer magnetic rotor 32 to rotate.
  • the inner output shaft 41 rotates synchronously with the inner magnetic rotor 31, the outer magnetic rotor 32 rotates synchronously with the outer output shaft 42, and when the inner magnetic rotor 31 and the outer magnetic rotor 32 rotate in reverse, the inner output shaft 41 and the outer
  • the output shaft 42 also rotates in the reverse direction, such as the inner magnetic rotor 31 and the inner output shaft 41 rotating in the clockwise direction at the same time, such as the outer magnetic rotor 32 and the outer output shaft 42 rotating in the counterclockwise direction at the same time.
  • the coaxial dual output mechanism 100 of the embodiment of the present application by adopting the structure form in which the motor assembly 20 and the magnetic tooth assembly 30 are integrated, the dual output shaft output power of the coaxial line is realized by using the magnetic coupling method. Without direct contact engagement, it will not cause problems such as wear and fatigue, and can effectively reduce system noise. In addition, due to the characteristics of the magnetic gear assembly, the magnetic tooth assembly 30 will slip when the load torque of the external output shaft 42 is too large , To achieve protection of the system, the structure is more compact, only need to drive and control a single motor to achieve dual output shaft transmission, low production and maintenance costs.
  • the magnetic adjustment assembly 33 includes a bracket 331 and a plurality of magnetic adjustment blocks 332, the plurality of magnetic adjustment blocks 332 are provided on the bracket 331, and the plurality of magnetic adjustment blocks 332 It is arranged around the inner magnetic rotor 31, it can be understood that a plurality of magnetic adjustment blocks 332 are arranged at intervals along the outer periphery of the inner magnetic rotor 31, and the inner magnetic rotor can be modulated by the plurality of magnetic adjustment blocks 332 arranged around the inner magnetic rotor 31
  • the magnetic field between 31 and the outer magnetic rotor 32 causes matching magnetic field harmonics between the inner magnetic rotor 31 and the outer magnetic rotor 32 to achieve corresponding steering of the inner magnetic rotor 31 and the outer magnetic rotor 32.
  • the magnetic adjustment component 33 can also form an entire cylindrical structure, and the cylindrical structure is inserted between the inner magnetic rotor 31 and the outer magnetic rotor 32, and the inner magnetic rotor 31 and the outer magnetic rotor 32 can be modulated
  • the magnetic field of the magnetic field causes matching magnetic field harmonics between the inner magnetic rotor 31 and the outer magnetic rotor 32.
  • the number of pole pairs of the inner magnetic rotor 31 is Pi
  • the number of pairs of magnetic poles of the outer magnetic rotor 32 is Po
  • the number of magnetic adjustment blocks 332 is Ns
  • the relationship between the number of pole pairs of the magnetic pole, and then through the magnetic adjustment block 332 to modulate the magnetic field between the inner magnetic rotor 31 and the outer magnetic rotor 32, in order to transfer torque, so that the speed ratio between the inner magnetic rotor 31 and the outer magnetic rotor 32 r -Po / Pi, where the negative sign represents that the rotation directions of the inner magnetic rotor 31 and the outer magnetic rotor 32 are
  • the bracket 331 includes a bracket body 3311 and a bracket end ring 3313.
  • the bracket body 3311 is formed in a cylindrical shape, and one end of the bracket body 3311 (as shown in FIG. 1 The lower end of the bracket body 3311 is fixedly connected to the supporting end cover 11, and the other end of the bracket body 3311 (the upper end of the bracket body 3311 shown in FIG. 1) is provided with a plurality of mounting grooves 3312 for mounting the magnetizing block 332 .
  • a plurality of mounting grooves 3312 are spaced apart along the circumferential direction of the bracket body 3311, and a plurality of magnetic adjustment blocks 332 are fitted in the plurality of mounting grooves 3312 one by one, and each mounting groove 3312 is on the inner and outer circumferential surfaces of the bracket body 3311 Both sides are open, so that when the magnetizing block 332 is installed in the mounting groove 3312, the outside and inside of the magnetizing block 332 are exposed to modulate the magnetic field between the inner magnetic rotor 31 and the outer magnetic rotor 32.
  • bracket end ring 3313 is a circular ring, and the bracket end ring 3313 is connected to the end surface of the bracket body 3311 away from the supporting end cover 11.
  • the magnetic adjustment block 332 is along the bracket body 3311 Is inserted into the installation slot 3312 from top to bottom. After installation, the magnet adjustment block 332 can be axially stopped in the installation slot 3312 by using the bracket end ring 3313 to prevent the magnet adjustment block 332 from the installation slot Break away within 3312.
  • each magnetic adjustment block 332 on both sides in the circumferential direction is exactly the same as the shape of the inner wall surface of the corresponding mounting groove 3312. In this way, the magnetic adjustment block The 332 and the mounting groove 3312 can be well matched.
  • the arc length of the magnetic adjustment block 332 at the minimum width in the circumferential direction is Lm
  • the arc length of the magnetic adjustment block 332 on the outer circumferential side is Lo
  • the arc length of the magnetic adjustment block 332 on the inner circumferential side is Li, Lm, Lm, and Li satisfy the relationship of Lm ⁇ Li and Lm ⁇ Lo
  • the magnetic modulation block 332 is located between the corresponding outer peripheral side and the corresponding inner peripheral side at the minimum width of the arc length in the circumferential direction
  • the arc length of the magnetic adjustment block 332 on the outer circumferential side and the arc length on the inner circumferential side are both greater than the arc length at the minimum width in the circumferential direction. In this way, after the magnetic adjustment block 332 is installed in the installation groove 3312, the magnetic adjustment The block 332 is reliably matched in the mounting groove 3312, and the magnetic adjustment block 332 is not easily loosened in the radial
  • the magnetic adjustment assembly 33 includes an outer bridge tube 333, the outer bridge tube 333 is sheathed on the bracket body 3311, and each magnetic adjustment block 332 is fixedly connected On the inner peripheral wall of the outer bridge tube 333, when the outer bridge tube 333 is sheathed on the bracket body 3311, a plurality of magnetic adjustment blocks 332 are respectively inserted into the mounting grooves 3312 of the bracket body 3311, that is, by The block 332 is integrally formed with the outer bridge tube 333, which is more convenient and faster when the magnetizing block 332 is installed on the bracket body 3311, which reduces the assembly man-hours, improves the assembly efficiency, and the structure is more integrated, reducing the number of parts.
  • the inner magnetic rotor 31 includes an inner rotor sleeve 311 and a plurality of inner magnetic blocks 312, the inner rotor sleeve 311 is formed in a cylindrical shape, and the plurality of inner magnetic blocks 312 are distributed at intervals in the circumferential direction On the inner rotor sleeve 311, in some optional examples of this application, as shown in FIGS.
  • a plurality of slots are evenly spaced on the outer peripheral surface of the inner rotor sleeve 311, and each inner magnetic block 312 They are embedded in the slots of the inner rotor sleeve 311 in a one-to-one correspondence, and the inner rotor sleeve 311 and the inner magnetic block 312 have a reliable cooperation.
  • each matching portion is corresponding to the corresponding inner magnetic block 312
  • each inner magnetic block 312 is provided on the outer peripheral surface of the inner rotor sleeve 311 by surface sticking, which is convenient for installation.
  • the outer magnetic rotor 32 includes an outer rotor sleeve 321 and a plurality of outer magnetic blocks 322, the outer rotor sleeve 321 is formed in a cylindrical shape, and the plurality of outer magnetic blocks 322 are distributed outside in the circumferential direction at intervals On the rotor sleeve 321, in some optional examples of the present application, as shown in FIGS.
  • a plurality of matching portions are evenly spaced on the inner circumferential surface of the outer rotor sleeve 321, and each of the matching portions is corresponding to
  • the outer magnetic blocks 322 correspond to each other one by one, and each of the outer magnetic blocks 322 is provided on the inner circumferential surface of the outer rotor sleeve 321 by surface sticking, which is convenient for installation.
  • a plurality of slots are evenly spaced on the inner circumferential surface of the outer rotor sleeve 321, and each inner magnetic block 312 is correspondingly embedded one by one In the slot of the inner rotor sleeve 311, the inner rotor sleeve 311 and the inner magnetic block 312 cooperate reliably.
  • the outer magnetic rotor 32 includes an outer rotor front bracket 323 and an outer rotor rear bracket 324.
  • the outer rotor front bracket 323 is formed in a disc shape covering the inner output shaft 41, and the outer output shaft 42 is integrally formed on the outer rotor front bracket 323
  • the structure is stable and the molding is convenient.
  • the peripheral edge of the outer rotor front bracket 323 is connected to one end of the outer rotor sleeve 321 (as shown in FIG. 2 the upper end of the outer rotor sleeve 321), the outer rotor front bracket 323 drives the outer rotor sleeve 321 to rotate, the outer rotor front bracket 323 and the outer rotor sleeve 321 rotates synchronously.
  • outer rotor rear bracket 324 is sheathed on the outer side of the magnetic modulation assembly 33, the outer rotor rear bracket 324 is connected to the other end of the outer rotor sleeve 321 (as shown in FIG. 2 the lower end of the outer rotor sleeve 321), the outer rotor back bracket 324
  • the bearing assembly 50 is supported on the casing 10.
  • the outer rotor rear bracket 324 has a supporting and limiting effect on the lower end of the magnetic tooth assembly 30.
  • connection hole slots 3211 are provided on the outer peripheral wall of the outer rotor sleeve 321, and the plurality of connection hole slots 3211 are spaced apart along the outer peripheral wall of the outer rotor sleeve 321, within the connection hole slots 3211 of the outer rotor sleeve 321
  • a connecting piece is matched with the connecting piece for fixed connection with the outer rotor front bracket 323 and the outer rotor rear bracket 324, so that the magnetic tooth assembly 30 forms an integral structure in the magnetic tooth cavity 10a, and the structure is more compact.
  • a structure hole 3212 is provided on the outer peripheral wall of the outer rotor sleeve 321, and glue is used in the structure hole 3212 to maintain the dynamic balance of the outer rotor sleeve 321 when rotating
  • the processed outer rotor sleeve 321 needs to perform a dynamic balance test before use, that is, the dynamic balance modulation of the outer rotor sleeve 321, in this embodiment, the outer rotor
  • the sleeve 321 is subjected to a dynamic balance test, observe the deviation between the rotation center axis of the outer rotor sleeve 321 and the rotating shaft, and then add glue in the structural hole 3212 of the outer rotor sleeve 321 until the rotation center axis of the outer rotor sleeve 321 Stop the glue application when it coincides with the rotating shaft, so that the rotation stability
  • the motor shaft 23 and the inner output shaft 41 are integral shafts, which can maintain synchronous rotation as an integral integral part, facilitate molding, have a more stable structure, and can save production costs.
  • the bearing assembly 50 includes a first bearing 51 and a second bearing 52, the first bearing 51 is provided at the first output hole, and the first bearing 51 is connected to the outer output shaft 42, the first bearing 51 can support the external output shaft 42 and reduce the friction coefficient of the external output shaft 42 during the movement to ensure the rotation accuracy of the external output shaft 42.
  • the second bearing 52 is connected to the supporting end cover 11, and the second bearing 52 is connected to the outer rotor to support the outer rotor, reduce the friction coefficient of the outer rotor during the movement, and ensure the outer rotor Rotation accuracy.
  • the bearing assembly 50 includes a third bearing 53 and a fourth bearing 54.
  • the third bearing 53 is provided at the middle hole, the third bearing 53 is connected between the motor shaft 23 and the supporting end cover 11, and the third bearing 53 is jacketed On the motor shaft 23, a fourth bearing 54 is connected to the casing 10, and the fourth bearing 54 is located at an end of the motor assembly 20 away from the magnetic tooth assembly 30.
  • the fourth bearing 54 is connected to the casing 10 At the lower end, and the fourth bearing 54 is coated on the motor shaft 23, the third bearing 53 and the fourth bearing 54 support the motor shaft 23, reduce the friction coefficient of the motor shaft 23 during the movement, and ensure the rotation accuracy of the motor shaft 23.
  • a heat dissipation wind wheel 60 is connected to the end of the motor shaft 23 away from the magnetic tooth assembly 30. As shown in FIG. 2, a heat dissipation wind wheel 60 is provided at the lower end of the motor shaft 23 The tooth assembly 30 and the motor assembly 20 dissipate heat to ensure the working performance and service life of the magnetic tooth assembly 30 and the motor assembly 20.
  • the casing 10 is provided with a second output hole communicating with the motor cavity. As shown in FIG. 2, the second output hole is located at the lower end of the casing 10, and the lower end of the motor shaft 23 extends from the second output hole to dissipate heat
  • the wind wheel 60 is connected to the motor shaft 23 and the radiating wind wheel 60 is located outside the cabinet 10.

Abstract

一种同轴双输出机构(100)，包括机壳(10)，机壳(10)内设有支撑端盖(11)；电机组件(20)，包括电机定子(21)、电机转子(22)和电机轴(23)；磁齿组件(30)，包括内磁转子(31)、外磁转子(32)和调磁组件(33)，内磁转子(31)与电机轴(23)相连，调磁组件(33)与支撑端盖(11)相连；输出轴组件(40)，包括内输出轴(41)和外输出轴(42)，内输出轴(41)与内磁转子(31)相连，外输出轴(42)与外磁转子(32)相连；轴承组件(50)，支撑电机转子(22)、内磁转子(31)和外磁转子(32)转动。

Description

同轴双输出机构
相关申请的交叉引用
本申请基于申请号为201811207994.9，申请日为2018年10月17日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本公开作为参考。
技术领域
本申请涉及电机技术领域，更具体地，涉及一种同轴双输出机构。
背景技术
目前，在一些特定的场合，比如风扇、食物料理机、以及飞机螺旋桨等使用场合，需要双轴对旋输出的电机或机构，可以采用机械齿轮结构、皮带轮结构、双电机结构等设备实现同轴线的双轴不同向旋转输出，但若采用机械齿轮及皮带轮形式需要零部件之间接触啮合，会产生疲劳磨损等问题，需要经常进行维护，系统的振动噪音大；采用双电机的形式由于结构体积较大，且两个电机需要各自独立的驱动控制系统，成本较高，前述技术问题亟待解决。
申请内容
本申请旨在至少解决现有技术中存在的技术问题之一。
为此，本申请提出一种同轴双输出机构，所述同轴双输出机构的结构紧凑、噪声低。
根据本申请实施例的同轴双输出机构，包括：机壳，所述机壳内设有支撑端盖，所述支撑端盖将所述机壳内部间隔出电机腔和磁齿腔，所述支撑端盖上设有中间孔，所述机壳上设有连通所述磁齿腔的第一输出孔；电机组件，所述电机组件设在所述电机腔内，所述电机组件包括电机定子、电机转子和电机轴，所述电机定子与所述机壳相连，所述电机转子与所述电机定子相配合，所述电机轴与所述电机转子相连，所述电机轴从所述中间孔伸入到所述磁齿腔内；磁齿组件，所述磁齿组件设在所述磁齿腔内，所述磁齿组件包括：内磁转子、外磁转子和调磁组件，所述内磁转子与所述电机轴相连，所述外磁转子外套在所述内磁转子上，所述调磁组件与所述支撑端盖相连并伸入到所述内磁转子和所述外磁转子之间，所述调磁组件调制磁场以使所述内磁转子与所述外磁转子通过磁耦合实现联动；输出轴组件，所述输出轴组件包括内输出轴和外套在所述内输出轴上的 外输出轴，所述内输出轴的一端与所述内磁转子相连且另一端从所述第一输出孔伸出，所述外输出轴的一端与所述外磁转子相连且另一端从所述第一输出孔伸出；轴承组件，所述轴承组件设在所述机壳上，并支撑所述电机转子、所述内磁转子和所述外磁转子转动。
根据本申请实施例的同轴双输出机构，通过采用电机组件和磁齿组件相集成的结构形式，利用磁耦合的方式实现同轴线动力双输出，由于无直接的接触啮合，不会产生磨损、疲劳等问题，系统噪声小，结构更加紧凑，生产维护成本低。
根据本申请的一个实施例，所述调磁组件包括支架和设在所述支架上的多个调磁块，多个所述调磁块环绕所述内磁转子设置。
根据本申请的一个可选的示例，所述内磁转子的磁极对数为Pi，所述外磁转子的磁极对数为Po，所述调磁块的个数为Ns，且Ns满足关系Ns＝Pi+Po。
根据本申请的另一个可选的示例，所述支架包括：支架主体，所述支架主体形成为圆筒形，所述支架主体的一端与所述支撑端盖相连，所述支架主体的另一端端面上设有多个安装槽，多个所述安装槽沿所述支架主体的周向间隔开设置，每个所述安装槽在所述支架主体的内周面和外周面均敞开，多个所述调磁块一一对应地配合在多个所述安装槽内；支架端环，所述支架端环为圆环形，所述支架端环连接在所述支架主体的远离所述支撑端盖的端面上。
根据本申请的又一个可选的示例，每个所述调磁块在周向两侧的表面的形状与对应所述安装槽的内壁面的形状完全一致，所述调磁块在周向上最小宽度处的弧长为Lm，所述调磁块在外周侧的弧长为Lo，所述调磁块在内周侧的弧长为Li，Lm、Lm和Li满足关系式Lm＜Li且Lm＜Lo。
根据本申请的又一个可选的示例，所述调磁组件包括外桥筒，所述外桥筒外套在所述支架主体上，每个所述调磁块均固定连接在所述外桥筒的内周壁上。
根据本申请的另一个实施例，所述内磁转子包括：内转子套，所述内转子套形成为圆筒形；多个内磁块，所述多个内磁块沿周向间隔开地分布在所述内转子套上；其中，每个所述内磁块均表贴在所述内转子套的外周面上，或者每个所述内磁块均嵌入在所述内转子套内。
根据本申请的又一个实施例，所述外磁转子包括：外转子套，所述外转子套形成为圆筒形；多个外磁块，所述多个外磁块沿周向间隔开地分布在所述外转子套上；其中，每个所述外磁块均表贴在所述外转子套的内周面上，或者每个所述外磁块均嵌入在所述外转子套内。
进一步地，所述外磁转子包括：外转子前支架，所述外转子前支架形成为外套在所述内输出轴上的圆盘形，所述外输出轴一体形成在所述外转子前支架上，所述外转子前支架的周缘连接在所述外转子套的一端；外转子后支架，所述外转子后支架外套在所述调磁组件的外侧，所述外转子后支架连接在所述外转子套的另一端，所述外转子后支架通过所述轴承组件支撑在所述机壳上。
进一步地，所述外转子套的外周壁上设有多个沿周向间隔开的连接孔槽，所述外转子套通过配合在所述连接孔槽的连接件分别与所述外转子前支架、所述外转子后支架相连。
根据本申请的又一个可选的示例，所述外转子套的外周壁上设有用于加胶以保持动平衡的结构孔槽。
根据本申请的再一个实施例，所述电机轴与所述内输出轴为一体轴。
根据本申请的再一个实施例，所述轴承组件包括：第一轴承，所述第一轴承设在所述第一输出孔处且与所述外输出轴相连；第二轴承，所述第二轴承连接在所述支撑端盖上且与所述外端转子相连。
可选地，所述轴承组件包括：第三轴承，所述第三轴承设在所述中间孔处且外套在所述电机轴上；第四轴承，所述第四轴承连接在所述机壳上，所述第四轴承位于所述电机组件的远离所述磁齿组件的一端，所述第四轴承外套在所述电机轴上。
根据本申请的再一个实施例，所述电机轴的远离所述磁齿组件的一端连接有散热风轮。
进一步地，所述机壳上设有连通所述电机腔的第二输出孔，所述电机轴的一端从所述第二输出孔处伸出，所述散热风轮位于所述机壳的外部。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是根据本申请实施例的同轴双输出机构的示意图；
图2是图1沿A-A线的剖视图；
图3是图1沿B-B线的剖视图；
图4是根据本申请实施例的同轴双输出机构的立体图；
图5是根据本申请实施例的同轴双输出机构的另一个视角立体图；
图6是根据本申请实施例的同轴双输出机构的俯视图；
图7是根据本申请实施例的同轴双输出机构的内磁转子的立体图；
图8是根据本申请实施例的同轴双输出机构的内磁转子的主视图；
图9是根据本申请实施例的同轴双输出机构的内磁转子的剖面图；
图10是根据本申请另一个实施例的同轴双输出机构的内磁转子的立体图；
图11是根据本申请另一个实施例的同轴双输出机构的内磁转子的主视图；
图12是根据本申请另一个实施例的同轴双输出机构的内磁转子的剖面图；
图13是根据本申请实施例的同轴双输出机构的外磁转子的立体图；
图14是根据本申请实施例的同轴双输出机构的外磁转子的主视图；
图15是根据本申请另一个实施例的同轴双输出机构的外磁转子的立体图；
图16是根据本申请另一个实施例的同轴双输出机构的外磁转子的主视图；
图17是根据本申请另一个实施例的同轴双输出机构的外磁转子的剖面图；
图18是根据本申请实施例的同轴双输出机构的调磁组件的立体图；
图19是根据本申请实施例的同轴双输出机构的调磁组件另一个视角的立体图；
图20是根据本申请实施例的同轴双输出机构的调磁组件的爆炸图；
图21是根据本申请实施例的同轴双输出机构的调磁组件的俯视图；
图22是图21中G部的放大图；
图23是根据本申请实施例的同轴双输出机构的调磁组件的剖视图；
图24是根据本申请另一个实施例的同轴双输出机构的调磁组件的立体图；
图25是根据本申请另一个实施例的同轴双输出机构的调磁组件另一个视角的立体图；
图26是根据本申请另一个实施例的同轴双输出机构的调磁组件的爆炸图；
图27是根据本申请另一个实施例的同轴双输出机构的调磁组件的俯视图；
图28是根据本申请另一个实施例的同轴双输出机构的调磁组件的剖视图。
附图标记：
100：同轴双输出机构；
10：机壳；10a：磁齿腔；11：支撑端盖；
20：电机组件；21：电机定子；22：电机转子；23：电机轴；
30：磁齿组件；31：内磁转子；311：内转子套；312：内磁块；32：外磁转子；321：外转子套；3211：连接孔槽；3212：结构孔槽；322：外磁块；323：外转子前支架；324： 外转子后支架；
33：调磁组件；331：支架；3311：支架主体；3312：安装槽；3313：支架端环；332：调磁块；333：外桥筒；
40：输出轴组件；41：内输出轴；42：外输出轴；
50：轴承组件；51：第一轴承；52：第二轴承；53：第三轴承；54：第四轴承；
60：散热风轮。
具体实施方式
下面详细描述本申请的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
下面参考图1-图28描述根据本申请实施例的同轴双输出机构100，可以实现动力的同轴线双输出。
根据本申请实施例的同轴双输出机构100包括机壳10、电机组件20、磁齿组件30、输出轴组件40和轴承组件50。
具体地，在机壳10内设有支撑端盖11，支撑端盖11将机壳10内部间隔出电机腔和磁齿腔10a，电机组件20设在电机腔内，磁齿组件30设在磁齿腔10a内，在支撑端盖11上设有中间孔，机壳10上设有连通磁齿腔10a的第一输出孔。
进一步地，电机组件20包括电机定子21、电机转子22和电机轴23，其中电机定子21与机壳10相连，电机转子22与电机定子21相配合，电机轴23与电机转子22相连，电机轴23和电机转子22可以同步转动，电机轴23从中间孔伸入到磁齿腔10a内。
此外，磁齿组件30包括内磁转子31、外磁转子32和调磁组件33，内磁转子31与电机轴23相连，内磁转子31与电机轴23同步转动，外磁转子32外套在内磁转子31上，如图2所示，调磁组件33的下端配合连接在支撑端盖11上，调磁组件33的上端伸入到内磁转子31和外磁转子32之间，这样，调磁组件33调制磁场以使内磁转子31与外磁转子32通过磁耦合实现联动，调磁组件33通过协调内磁转子31和外磁转子32之间的磁场，即内磁转子31和外磁转子32之间通过调磁组件33调制形成可以匹配的磁场谐波，进而使得内磁转子31通过磁耦合联动，实现内磁转子31和外磁转子32的转动。
可以理解的是，内磁转子31和外磁转子32可以反向转动，例如，内磁转子31围绕电机轴23顺时针转动，外磁转子32围绕电机轴23逆时针转动，从而实现同轴线的内输出轴41和外输出轴42对旋输出。
可选地，输出轴组件40包括内输出轴41和外输出轴42，外输出轴42外套在内输出轴41上，内输出轴41的一端(如图2所示的内输出轴41的下端)与内磁转子31相连，内输出轴41的另一端(如图2所示的内输出轴41的上端)从第一输出孔伸出，外输出轴42的一端(如图2所示的外输出轴42的下端)与外磁转子32相连，外输出轴42的另一端(如图2所示的外输出轴42的上端)从第一输出孔伸出，轴承组件50设在机壳10上，并支撑电机转子22、内磁转子31和外磁转子32转动。
可以理解的是，内输出轴41与内磁转子31同步转动，外磁转子32与外输出轴42同步转动，在内磁转子31和外磁转子32反向转动时，内输出轴41与外输出轴42也反向转动，如内磁转子31和内输出轴41同时沿着顺时针方向转动，如外磁转子32和外输出轴42同时沿着逆时针方向转动。
根据本申请实施例的同轴双输出机构100，通过采用电机组件20和磁齿组件30相集成的结构形式，利用磁耦合的方式实现同轴线的双输出轴输出动力，由于零部件之间没有直接的接触啮合，不会产生磨损、疲劳等问题，且可以有效地减小系统噪声，另外，由于磁齿轮组件本身的特性，在外输出轴42负载扭矩过大时，磁齿组件30会打滑，实现对系统的保护，结构更加紧凑，只需要驱动控制单电机即可实现双输出轴传动，生产维护成本低。
如图18至图28所示，根据本申请的一个实施例，调磁组件33包括支架331和多个 调磁块332，多个调磁块332设在支架331上，多个调磁块332环绕内磁转子31设置，可以理解的是，多个调磁块332沿内磁转子31的外周间隔开排布，通过环绕内磁转子31布置的多个调磁块332，可以调制内磁转子31和外磁转子32之间磁场，使得内磁转子31和外磁转子32之间形成相匹配的磁场谐波，实现内磁转子31和外磁转子32相对应的转向。
可选地，调磁组件33还可以形成整个圆柱形的结构，将圆柱形的结构插接在内磁转子31和外磁转子32之间，可以调制内磁转子31和外磁转子32之间的磁场，使得内磁转子31和外磁转子32之间形成匹配的磁场谐波。
根据本申请的一个可选的示例，内磁转子31的磁极对数为Pi，外磁转子32的磁极对数为Po，调磁块332的个数为Ns，且Ns满足关系Ns＝Pi+Po，即当调磁块332的个数等于内磁转子31的磁极对数与外磁转子32的磁极对数之和，通过调磁块332的个数与内磁转子31、外磁转子32的磁极对数之间的关系，再通过调磁块332调制内磁转子31和外磁转子32之间磁场，以此来传递扭矩，使得内磁转子31和外磁转子32之间的转速比r＝-Po/Pi，其中负号代表内磁转子31和外磁转子32的旋转方向相反，故而可实现同轴线的双输出轴对旋输出动力。
如图20所示，根据本申请的另一个可选的示例，支架331包括支架主体3311和支架端环3313，支架主体3311形成为圆筒形，支架主体3311的一端(如图1所示的支架主体3311的下端)与支撑端盖11固定相连，支架主体3311的另一端(如图1所示的支架主体3311的上端)端面上设有多个安装槽3312，用以安装调磁块332。
多个安装槽3312沿支架主体3311的周向间隔开设置，多个调磁块332一一对应地配合在多个安装槽3312内，每个安装槽3312在支架主体3311的内周面和外周面均敞开，这样，调磁块332在安装在安装槽3312内时，调磁块332的外侧和内侧裸露，以对内磁转子31和外磁转子32之间的磁场进行调制。
此外，支架端环3313为圆环形，支架端环3313连接在支架主体3311的远离支撑端盖11的端面上，如图20所示，可以理解的是，调磁块332沿着支架主体3311的轴向从上至下插入安装槽3312内，在安装好后，通过利用支架端环3313可以在轴向上将调磁块332止挡在安装槽3312内，防止调磁块332从安装槽3312内脱离。
如图21和图22根据本申请的又一个可选的示例，每个调磁块332在周向两侧的表面的形状与对应安装槽3312的内壁面的形状完全一致，这样，调磁块332和安装槽3312之间可以良好匹配。
如图22所示，具体地，调磁块332在周向上最小宽度处的弧长为Lm，调磁块332 在外周侧的弧长为Lo，调磁块332在内周侧的弧长为Li，Lm、Lm和Li满足关系式Lm＜Li且Lm＜Lo，可以理解的是，调磁块332在周向上弧长的最小宽度处位于对应的外周侧和对应的内周侧之间，且调磁块332在外周侧的弧长和在内周侧的弧长均大于在周向上最小宽度处的弧长，这样，在调磁块332安装在安装槽3312内后，可以将调磁块332可靠地匹配在安装槽3312内，调磁块332在径向上不易松动。
如图24至图28所示，根据本申请的又一个可选的示例，调磁组件33包括外桥筒333，外桥筒333外套在支架主体3311上，每个调磁块332均固定连接在外桥筒333的内周壁上，在将外桥筒333外套在支架主体3311上时，多个调磁块332分别对应插接在支架主体3311的安装槽3312内，即通过将多个调磁块332与外桥筒333一体成型，在将调磁块332安装在支架主体3311上时更加方便、快捷，降低了装配工时，提高了装配效率，结构更加整体化，减少了零部件数量。
根据本申请的另一个实施例，内磁转子31包括内转子套311和多个内磁块312，内转子套311形成为圆筒形，多个内磁块312沿周向间隔开地分布在内转子套311上，在本申请一些可选的示例中，如图7至图9所示，在内转子套311的外周面上间隔均匀地设有多个插槽，每个内磁块312均一一对应嵌入在内转子套311的插槽内，内转子套311与内磁块312之间配合可靠。
在本申请另一些可选的示例中，如图10至图12所示，在内转子套311的外周面上间隔均匀地设有多个配合部，每个配合部与对应的内磁块312一一对应，每个内磁块312均通过表贴的方式设置在内转子套311的外周面上，安装方便。
根据本申请的又一个实施例，外磁转子32包括外转子套321和多个外磁块322，外转子套321形成为圆筒形，多个外磁块322沿周向间隔开地分布在外转子套321上，在本申请一些可选的示例中，如图13和图14所示，在外转子套321的内周面上间隔均匀地设有多个配合部，每个配合部与对应的外磁块322一一对应，每个外磁块322均通过表贴的方式设置在外转子套321的内周面上，安装方便。在本申请另一些可选的示例中，如图15和图17所示，在外转子套321的内周面上间隔均匀地设有多个插槽，每个内磁块312均一一对应嵌入在内转子套311的插槽内，内转子套311与内磁块312之间配合可靠。
进一步地，外磁转子32包括外转子前支架323和外转子后支架324，外转子前支架323形成为外套在内输出轴41上的圆盘形，外输出轴42一体形成在外转子前支架323上，结构稳定，成型方便。外转子前支架323的周缘连接在外转子套321的一端(如图2所示的外转子套321的上端)，外转子前支架323带动外转子套321转动，外转子前 支架323与外转子套321同步转动。
进一步地，外转子后支架324外套在调磁组件33的外侧，外转子后支架324连接在外转子套321的另一端(如图2所示的外转子套321的下端)，外转子后支架324通过轴承组件50支撑在机壳10上，如图2所示，外转子后支架324对磁齿组件30的下端具有支撑和限位作用。
进一步地，在外转子套321的外周壁上设有多个连接孔槽3211，多个连接孔槽3211沿外转子套321的外周壁的间隔开的布置，在外转子套321的连接孔槽3211内配合有连接件，该连接件用于与外转子前支架323、外转子后支架324固定相连，使得磁齿组件30在磁齿腔10a内形成一个整体结构、结构更加紧凑。
根据本申请的又一个可选的示例，外转子套321的外周壁上设有结构孔槽3212，在该结构孔槽3212内用于加胶，以保持外转子套321在转动时的动平衡，进而保证外转子套321的转动稳定，可以理解的是，加工好的外转子套321在使用之前需要进行动平衡试验，即对外转子套321进行动平衡调制，在该实施例中，对外转子套321进行动平衡试验时，观察外转子套321的旋转中心轴线与旋转轴之间的偏移情况，然后在外转子套321的结构孔槽3212内加胶，直到外转子套321的旋转中心轴线与旋转轴之间重合时停止加胶，这样可以维持外转子套321的转动稳定。
根据本申请的再一个实施例，电机轴23与内输出轴41为一体轴，作为整体一体件可以维持同步转动，成型方便，结构更加稳定，且可以节约成产成本。
根据本申请的再一个实施例，轴承组件50包括第一轴承51和第二轴承52，第一轴承51设在第一输出孔处，且第一轴承51与外输出轴42相连，第一轴承51可以支撑外输出轴42，并降低外输出轴42在运动过程中的摩擦系数，保证外输出轴42的回转精度。
可选地，第二轴承52连接在支撑端盖11上，且第二轴承52与外端转子相连，支撑外端转子，降低外端转子在运动过程中的摩擦系数，并保证外端转子的回转精度。
可选地，轴承组件50包括第三轴承53和第四轴承54，第三轴承53设在中间孔处，第三轴承53连接在电机轴23和支撑端盖11之间，第三轴承53外套在电机轴23上，第四轴承54连接在机壳10上，第四轴承54位于电机组件20的远离磁齿组件30的一端，如图2所示，第四轴承54连接在机壳10的下端，且第四轴承54外套在电机轴23上，第三轴承53和第四轴承54支撑电机轴23，降低电机轴23在运动过程中的摩擦系数，并保证电机轴23的回转精度。
根据本申请的再一个实施例，在电机轴23的远离磁齿组件30的一端连接有散热风轮60，如图2所示，在电机轴23的下端设有散热风轮60，同时对磁齿组件30及电机 组件20进行散热，保证磁齿组件30及电机组件20的工作性能和使用寿命。
进一步地，机壳10上设有连通电机腔的第二输出孔，如图2所示，第二输出孔位于机壳10的下端，电机轴23的下端从第二输出孔处伸出，散热风轮60连接在电机轴23上且散热风轮60位于机壳10的外部。
可以理解的是，调磁组件33与外磁转子32、内磁转子31之间均有间隙，机壳10的两端、外转子前支架323、调磁组件33的支架、电机组件20上均有空隙可供气流沿整个机构的轴向流过，这样，在磁齿组件30和电机组件20运行时，通过散热风轮60将产生的热量可以通过气流带出，以便及时排热。
根据本申请实施例的同轴双输出机构100的其他构成以及操作对于本领域普通技术人员而言都是已知的，这里不再详细描述。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本申请的实施例，本领域的普通技术人员可以理解：在不脱离本申请的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本申请的范围由权利要求及其等同物限定。

Claims (16)

  1. 一种同轴双输出机构，其特征在于，包括：
    机壳，所述机壳内设有支撑端盖，所述支撑端盖将所述机壳内部间隔出电机腔和磁齿腔，所述支撑端盖上设有中间孔，所述机壳上设有连通所述磁齿腔的第一输出孔；
    电机组件，所述电机组件设在所述电机腔内，所述电机组件包括电机定子、电机转子和电机轴，所述电机定子与所述机壳相连，所述电机转子与所述电机定子相配合，所述电机轴与所述电机转子相连，所述电机轴从所述中间孔伸入到所述磁齿腔内；
    磁齿组件，所述磁齿组件设在所述磁齿腔内，所述磁齿组件包括：内磁转子、外磁转子和调磁组件，所述内磁转子与所述电机轴相连，所述外磁转子外套在所述内磁转子上，所述调磁组件与所述支撑端盖相连并伸入到所述内磁转子和所述外磁转子之间，所述调磁组件调制磁场以使所述内磁转子与所述外磁转子通过磁耦合实现联动；
    输出轴组件，所述输出轴组件包括内输出轴和外套在所述内输出轴上的外输出轴，所述内输出轴的一端与所述内磁转子相连且另一端从所述第一输出孔伸出，所述外输出轴的一端与所述外磁转子相连且另一端从所述第一输出孔伸出；
    轴承组件，所述轴承组件设在所述机壳上，并支撑所述电机转子、所述内磁转子和所述外磁转子转动。
  2. 根据权利要求1所述的同轴双输出机构，其特征在于，所述调磁组件包括支架和设在所述支架上的多个调磁块，多个所述调磁块环绕所述内磁转子设置。
  3. 根据权利要求2所述的同轴双输出机构，其特征在于，所述内磁转子的磁极对数与所述外磁转子的磁极对数之和与所述调磁块的个数相等。
  4. 根据权利要求2所述的同轴双输出机构，其特征在于，所述支架包括：
    支架主体，所述支架主体形成为圆筒形，所述支架主体的一端与所述支撑端盖相连，所述支架主体的另一端端面上设有多个安装槽，多个所述安装槽沿所述支架主体的周向间隔开设置，每个所述安装槽在所述支架主体的内周面和外周面均敞开，多个所述调磁块一一对应地配合在多个所述安装槽内；
    支架端环，所述支架端环为圆环形，所述支架端环连接在所述支架主体的远离所述支撑端盖的端面上。
  5. 根据权利要求4所述的同轴双输出机构，其特征在于，每个所述调磁块在周向两侧的表面的形状与对应所述安装槽的内壁面的形状完全一致，所述调磁块在周向上最小宽度处的弧长小于所述调磁块在内周侧的弧长，所述调磁块在周向上最小宽度处的弧长 小于所述调磁块在外周侧的弧长。
  6. 根据权利要求4所述的同轴双输出机构，其特征在于，所述调磁组件包括外桥筒，所述外桥筒外套在所述支架主体上，每个所述调磁块均固定连接在所述外桥筒的内周壁上。
  7. 根据权利要求1所述的同轴双输出机构，其特征在于，所述内磁转子包括：
    内转子套，所述内转子套形成为圆筒形；
    多个内磁块，所述多个内磁块沿周向间隔开地分布在所述内转子套上；其中，
    每个所述内磁块均表贴在所述内转子套的外周面上，或者每个所述内磁块均嵌入在所述内转子套内。
  8. 根据权利要求1所述的同轴双输出机构，其特征在于，所述外磁转子包括：
    外转子套，所述外转子套形成为圆筒形；
    多个外磁块，所述多个外磁块沿周向间隔开地分布在所述外转子套上；其中，
    每个所述外磁块均表贴在所述外转子套的内周面上，或者每个所述外磁块均嵌入在所述外转子套内。
  9. 根据权利要求8所述的同轴双输出机构，其特征在于，所述外磁转子包括：
    外转子前支架，所述外转子前支架形成为外套在所述内输出轴上的圆盘形，所述外输出轴一体形成在所述外转子前支架上，所述外转子前支架的周缘连接在所述外转子套的一端；
    外转子后支架，所述外转子后支架外套在所述调磁组件的外侧，所述外转子后支架连接在所述外转子套的另一端，所述外转子后支架通过所述轴承组件支撑在所述机壳上。
  10. 根据权利要求9所述的同轴双输出机构，其特征在于，所述外转子套的外周壁上设有多个沿周向间隔开的连接孔槽，所述外转子套通过配合在所述连接孔槽的连接件分别与所述外转子前支架、所述外转子后支架相连。
  11. 根据权利要求8所述的同轴双输出机构，其特征在于，所述外转子套的外周壁上设有用于加胶以保持动平衡的结构孔槽。
  12. 根据权利要求1所述的同轴双输出机构，其特征在于，所述电机轴与所述内输出轴为一体轴。
  13. 根据权利要求1所述的同轴双输出机构，其特征在于，所述轴承组件包括：
    第一轴承，所述第一轴承设在所述第一输出孔处且与所述外输出轴相连；
    第二轴承，所述第二轴承连接在所述支撑端盖上且与所述外端转子相连。
  14. 根据权利要求12所述的同轴双输出机构，其特征在于，所述轴承组件包括：
    第三轴承，所述第三轴承设在所述中间孔处且外套在所述电机轴上；
    第四轴承，所述第四轴承连接在所述机壳上，所述第四轴承位于所述电机组件的远离所述磁齿组件的一端，所述第四轴承外套在所述电机轴上。
  15. 根据权利要求1所述的同轴双输出机构，其特征在于，所述电机轴的远离所述磁齿组件的一端连接有散热风轮。
  16. 根据权利要求15所述的同轴双输出机构，其特征在于，所述机壳上设有连通所述电机腔的第二输出孔，所述电机轴的一端从所述第二输出孔处伸出，所述散热风轮位于所述机壳的外部。
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