CN117277717A - Double-rotor motor structure device - Google Patents

Double-rotor motor structure device Download PDF

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Publication number
CN117277717A
CN117277717A CN202311409576.9A CN202311409576A CN117277717A CN 117277717 A CN117277717 A CN 117277717A CN 202311409576 A CN202311409576 A CN 202311409576A CN 117277717 A CN117277717 A CN 117277717A
Authority
CN
China
Prior art keywords
rotor
bearing
end cover
rear end
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311409576.9A
Other languages
Chinese (zh)
Inventor
赵浪
张典岳
向红璇
郭苏颉
王茜
袁建萍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Huxi Electrical Industrial Co ltd
Original Assignee
Chongqing Huxi Electrical Industrial Co ltd
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.)
Filing date
Publication date
Application filed by Chongqing Huxi Electrical Industrial Co ltd filed Critical Chongqing Huxi Electrical Industrial Co ltd
Priority to CN202311409576.9A priority Critical patent/CN117277717A/en
Publication of CN117277717A publication Critical patent/CN117277717A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2786—Outer rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

A dual rotor motor structure device comprising: the device comprises a front end cover, a shell, a stator, an inner rotor, an outer rotor, a controller box, two sensor rotors, a rear end cover, a rotating shaft and a rear cover. The invention can realize independent and stable operation of the double shafts of the permanent magnet synchronous motor, and the single shaft motor can realize positive and reverse rotation of any rotating speed at the same time, and realize output in different directions. The invention realizes the independent output of the motor double shafts without interference, and the running parameters of the motors can be changed independently when the motors run respectively. The modular design of the present invention has lead-out connection rationality and portability for modular replacement.

Description

Double-rotor motor structure device
Technical Field
The invention relates to the technical field of motors, in particular to a double-rotor motor structure device.
Background
In the permanent magnet synchronous motor, the motors are all single-shaft output, even if the motors have double-shaft output, the double-shaft output is realized by adopting a mechanical conversion mode for single motor output between the motor double shafts, the independent stable operation of the double shafts can not be realized, under certain specific environments, the independent output of the double shafts can not be realized without mutual interference,
the output form of the existing motor is mostly single-shaft unidirectional output, the small part is double-shaft output, the existing double-shaft output form is single-motor power source, the single-motor double-shaft output form is realized by adopting a mechanical structure conversion mode such as a gearbox, and the torque rotation speed between two rotating shafts of the double-shaft output of the motor has a certain proportion relationship, so that independent debugging operation cannot be realized.
Disclosure of Invention
The invention aims to provide a double-rotor motor structure device, which comprises: the device comprises a front end cover, a shell, a stator, an inner rotor, an outer rotor, a controller box, two sensor rotors, a rear end cover, a rotating shaft and a rear cover.
The front end cover and the rear end cover are respectively assembled at two ends of the shell.
The front end cover is provided with a central hole I.
And a fourth bearing is arranged on the central hole I of the front end cover.
The fourth bearing is fixed on the front end cover through a bearing cover.
The inner wall of the shell is of a cylindrical structure.
The stator, the inner rotor and the outer rotor are all loaded in the shell.
The stator comprises a stator winding iron core I and a stator winding iron core II.
The stator winding iron core I, the stator winding iron core II and the inner wall of the machine shell are in interference fit.
The stator winding iron core I is positioned between the inner wall of the shell and the inner rotor.
And the stator winding iron core II is positioned between the inner wall of the shell and the outer rotor.
The inner rotor comprises a rotor hub I and a permanent magnet rotor I.
The permanent magnet rotor I is sleeved into the rotor hub I.
The outer rotor comprises a rotor hub II and a permanent magnet rotor II.
And the permanent magnet rotor II is sleeved into the rotor hub II.
The controller box is arranged on one side of the rear end cover, which is far away from the shell.
The sensor rotor comprises a locking device I, a position sensor I, a locking device II and a position sensor II.
The position sensor I is fixed on a fourth bearing of the front end cover through a locking device I.
The position sensor II is fixed on the rear end cover through a locking device II.
And the rear end cover is provided with a central hole II.
And a first bearing is arranged on the central hole II of the rear end cover.
The first bearing is fixed on the rear end cover through a bearing cover.
The first bearing is fixedly connected with the position sensor II through the locking device II.
The shaft includes a second bearing, a third bearing, an inner shaft, and an outer shaft.
The inner and outer shafts are connected by a second bearing and a third bearing.
The inner shaft is connected with a first bearing of the rear end cover.
And the inner shaft is connected with a rotor hub I of the inner rotor through a key.
The outer shaft is connected with a fourth bearing of the front end cover.
And the outer shaft is connected with a rotor hub II of the outer rotor through a key.
The rotating shaft is transversely inserted into the shell through the central hole I of the front end cover and the central hole II of the rear end cover.
The rear cover is arranged on one side of the controller box away from the rear end cover.
Further, a wire penetrating groove is formed in the inner wall of the shell and used for placing the three-phase wires of the stator and the sensor wires.
Further, the permanent magnet rotor I and the permanent magnet rotor II comprise a rotor iron core, magnetic steel, a sleeve and a locking device.
The magnetic steel is restrained on the rotor core through auxiliary materials.
And a sleeve is sleeved on the outer wall of the magnetic steel.
The locking device is used for locking the permanent magnet rotor.
Further, a limiting sleeve is arranged between the second bearing and the third bearing.
Further, the inner shaft and the outer shaft can move relatively through the second bearing and the third bearing.
Further, a fifth bearing, a positioning device I and a positioning device II are arranged between the inner shaft and the outer shaft.
The fifth bearing is positioned at one side between the inner shaft and the outer shaft and close to the front end cover and is used for auxiliary support.
The positioning device I is used for locking the fifth bearing.
The positioning device II is used for locking the second bearing and the third bearing.
Further, a washer is arranged in the direction of relative movement of the third bearing and the outer shaft.
Further, the rear end cover is also provided with a plurality of through holes for assembling the wire holder.
The invention has the technical effects that the permanent magnet synchronous motor can realize independent and stable operation of double shafts, and the single shaft motor can realize positive and reverse rotation of any rotating speed at the same time and realize output in different directions. The invention realizes the independent output of the motor double shafts without interference, and the running parameters of the motors can be changed independently when the motors run respectively.
Furthermore, the modular design of the present invention provides lead-out connection rationality and portability for modular replacement.
Drawings
FIG. 1 is a schematic illustration of a dual rotor motor construction arrangement;
in the figure, front end cover 1, center hole I101, fourth bearing 102, casing 2, stator 3, stator winding core I301, stator winding core II302, inner rotor 4, rotor hub I401, permanent magnet rotor I402, outer rotor 5, rotor hub II501, permanent magnet rotor II502, controller box 6, sensor rotor 7, locking device I701, position sensor I702, locking device II703, position sensor II704, rear end cover 8, center hole II801, first bearing 802, rotation shaft 9, second bearing 901, third bearing 902, fifth bearing 903, inner shaft 904, outer shaft 905, positioning device I906, positioning device II907, washer 908, stopper 909, and rear cover 10.
Detailed Description
The present invention is further described below with reference to examples, but it should not be construed that the scope of the above subject matter of the present invention is limited to the following examples. Various substitutions and alterations are made according to the ordinary skill and familiar means of the art without departing from the technical spirit of the invention, and all such substitutions and alterations are intended to be included in the scope of the invention.
Example 1:
referring to fig. 1, a dual rotor motor structure device includes: front end cover 1, casing 2, stator 3, inner rotor 4, outer rotor 5, controller box 6, two sensor rotors 7, rear end cover 8, pivot 9 and rear cover 10.
The front end cover 1 and the rear end cover 8 are respectively assembled at two ends of the casing 2.
The front end cover 1 is provided with a central hole I101.
A fourth bearing 102 is arranged on the central hole I of the front end cover 1.
The fourth bearing 102 is fixed to the front end cover 1 through a bearing cover.
The inner wall of the shell 2 is of a cylindrical structure.
The stator 3, the inner rotor 4 and the outer rotor 5 are all mounted inside the casing 2.
The stator 3 comprises a stator winding iron core I301 and a stator winding iron core II302.
The stator winding iron core I301, the stator winding iron core II302 and the inner wall of the shell 2 are in interference fit.
The stator winding core I301 is located between the inner wall of the casing 2 and the inner rotor 4.
The stator winding iron core II302 is located between the inner wall of the casing 2 and the outer rotor 5.
The inner rotor 4 comprises a rotor hub I401 and a permanent magnet rotor I402.
The permanent magnet rotor I402 is sleeved into the rotor hub I401.
The outer rotor 5 comprises a rotor hub II501 and a permanent magnet rotor II502.
The permanent magnet rotor II502 is sleeved into the rotor hub II501.
The controller box 6 is mounted on the side of the rear end cap 8 remote from the housing 2.
The sensor rotor 7 comprises a locking device I701, a position sensor I702, a locking device II703 and a position sensor II704.
The position sensor I702 is fixed to the fourth bearing 102 of the front cover 1 by a locking device I701.
The position sensor II704 is fixed to the rear end cap 8 by a locking device II 703.
The rear end cover 8 is provided with a center hole II801.
A first bearing 802 is arranged on the central hole II of the rear end cap 8.
The first bearing 802 is fixed to the rear cover 8 by a bearing cap.
The first bearing 802 is fixedly connected with the position sensor II704 through the locking device II 703.
The shaft 9 includes a second bearing 901, a third bearing 902, an inner shaft 904, and an outer shaft 905.
The inner shaft 904 and the outer shaft 905 are connected by a second bearing 901 and a third bearing 902.
The inner shaft 904 is connected to a first bearing 802 of the rear end cap 8.
The inner shaft 904 is keyed to fit the rotor hub I401 of the inner rotor 4.
The outer shaft 905 is connected to the fourth bearing 102 of the front cover 1.
The outer shaft 905 is provided with a rotor hub II501 of the outer rotor 5 by means of a keyed connection.
The rotating shaft 9 is transversely inserted into the casing 2 through a central hole I101 of the front end cover 1 and a central hole II801 of the rear end cover 8.
The rear cover 10 is mounted on the side of the controller box 6 remote from the rear end cover 8.
Example 2:
the main technical content of the double-rotor motor structure device is as shown in the embodiment 1, and further, a wire penetrating groove is formed in the inner wall of the casing 2 and used for placing the three-phase wires of the stator and the sensor wires.
Example 3:
the main technical matters of the double-rotor motor structure device are as shown in any one of embodiments 1 or 2, and further, the permanent magnet rotor I402 and the permanent magnet rotor II502 each comprise a rotor core, magnetic steel, a sleeve and a locking device.
The magnetic steel is restrained on the rotor core through auxiliary materials.
And a sleeve is sleeved on the outer wall of the magnetic steel.
The locking device is used for locking the permanent magnet rotor.
Example 4:
a dual-rotor motor structure device, the main technical content of which is as described in any one of embodiments 1 to 3, further, a stop sleeve 909 is disposed between the second bearing 901 and the third bearing 902.
Example 5:
the main technical matters of the double-rotor motor structure device are as shown in any one of embodiments 1 to 4, and further, the inner shaft 904 and the outer shaft 905 can relatively move through the second bearing 901 and the third bearing 902.
Example 6:
a dual-rotor motor structure device, the main technical content of which is as in any one of embodiments 1 to 5, further, a fifth bearing 903, a positioning device I906 and a positioning device II907 are further disposed between the inner shaft 904 and the outer shaft 905.
The fifth bearing 903 is located between the inner shaft 904 and the outer shaft 905 on the side near the front end cap 1 for auxiliary support.
The positioning means I906 is used for locking the fifth bearing 903.
The positioning device II907 is used to lock the second bearing 901 and the third bearing 902.
Example 7:
the main technical matters of the double-rotor motor structure device are as shown in any one of embodiments 1 to 6, and further, a washer 908 is disposed in a direction of moving the third bearing 902 and the outer shaft 905 relative to each other.
Example 8:
the main technical content of the double-rotor motor structure device is as in any one of embodiments 1 to 7, further, a plurality of through holes are further formed in the rear end cover 8 for assembling a wire holder.
Example 9:
referring to fig. 1, a dual rotor motor structure device includes: front end cover 1, casing 2, stator 3, inner rotor 4, outer rotor 5, controller box 6, two sensor rotors 7, rear end cover 8, pivot 9 and rear cover 10.
The front end cover 1 and the rear end cover 8 are respectively assembled at two ends of the casing 2.
The front end cover 1 is provided with a central hole I101.
A fourth bearing 102 is arranged on the central hole I of the front end cover 1.
The fourth bearing 102 is fixed to the front end cover 1 through a bearing cover.
The inner wall of the shell 2 is of a cylindrical structure. The shape of the shell can be cylindrical or square according to the use condition, and the wall thickness of the shell is only required to be ensured.
The stator 3, the inner rotor 4 and the outer rotor 5 are all mounted inside the casing 2.
The stator 3 comprises a stator winding iron core I301 and a stator winding iron core II302.
The stator winding iron core is pressed into the shell from two ends respectively, and meanwhile, the relative positions of the stator winding iron core and the shell are ensured.
The stator winding iron core I301, the stator winding iron core II302 and the inner wall of the shell 2 are in interference fit.
The stator winding core I301 is located between the inner wall of the casing 2 and the inner rotor 4.
The stator winding iron core II302 is located between the inner wall of the casing 2 and the outer rotor 5.
The inner rotor 4 comprises a rotor hub I401 and a permanent magnet rotor I402.
The permanent magnet rotor I402 is sleeved into the rotor hub I401 according to the relative position.
The outer rotor 5 comprises a rotor hub II501 and a permanent magnet rotor II502.
The permanent magnet rotor II502 is sleeved into the rotor hub II501 according to the relative position.
The controller box 6 is mounted on the side of the rear end cap 8 remote from the housing 2.
The sensor rotor 7 comprises a locking device I701, a position sensor I702, a locking device II703 and a position sensor II704.
The position sensor I702 is fixed to the fourth bearing 102 of the front cover 1 by a locking device I701.
The position sensor II704 is fixed to the rear end cap 8 by a locking device II 703.
The rear end cover 8 is provided with a center hole II801.
A first bearing 802 is arranged on the central hole II of the rear end cap 8.
The first bearing 802 is fixed to the rear cover 8 by a bearing cap.
The first bearing 802 is fixedly connected with the position sensor II704 through the locking device II 703.
The shaft 9 includes a second bearing 901, a third bearing 902, an inner shaft 904, and an outer shaft 905.
The inner shaft 904 and the outer shaft 905 are connected by a second bearing 901 and a third bearing 902.
The inner shaft 904 is connected to a first bearing 802 of the rear end cap 8.
The inner shaft 904 is keyed to fit the rotor hub I401 of the inner rotor 4.
The outer shaft 905 is connected to the fourth bearing 102 of the front cover 1.
The outer shaft 905 is provided with a rotor hub II501 of the outer rotor 5 by means of a keyed connection.
The rotating shaft 9 is transversely inserted into the casing 2 through a central hole I101 of the front end cover 1 and a central hole II801 of the rear end cover 8.
The rear cover 10 is mounted on the side of the controller box 6 remote from the rear end cover 8.
The assembly sequence is as follows:
1. first the front end cap and the housing are assembled together, the so-called support 1.
2. The first bearing is assembled on the rear end cover, the bearing is locked on the rear end cover through the bearing cover, then the rear end cover provided with the bearing is sleeved into the inner rotor, and then the sensor rotor and the rear end cover provided with the bearing are locked on the inner rotor together through the locking device, so that the inner rotor assembly is formed.
3. The second bearing, the limiting sleeve and the third bearing are sleeved in the inner rotor at the illustrated position in sequence.
4. And sleeving the fifth bearing into the outer rotor, and locking the fifth bearing by using a positioning device to form an outer rotor assembly.
5. And a gasket is arranged at the illustrated position of the outer rotor assembly, and then the outer rotor assembly is sleeved into the inner rotor assembly and fixed by a positioning device to form a rotor supporting structure.
Example 10:
the main technical content of the double-rotor motor structure device is as shown in the embodiment 9, and further, a wire penetrating groove is formed in the inner wall of the casing 2, and is used for placing the three-phase wires of the stator and the sensor wires.
Example 11:
the main technical matters of the double-rotor motor structure device are as in any one of embodiments 9 or 10, and further, the permanent magnet rotor I402 and the permanent magnet rotor II502 each comprise a rotor core, magnetic steel, a sleeve and a locking device.
The magnetic steel is restrained on the rotor core through different auxiliary materials.
The sleeve is sleeved on the outer wall of the magnetic steel to ensure that the magnetic steel is uniformly stressed when the rotor runs at a high speed, and phenomena such as breakage, unstable fastening and the like are avoided.
The locking device is used for locking the permanent magnet rotor, and ensures that the permanent magnet rotor and the rotor hub do not axially float and circumferentially slide.
Example 12:
a dual-rotor motor structure device, the main technical content of which is as in any one of embodiments 9 to 11, further, a stop sleeve 909 is disposed between the second bearing 901 and the third bearing 902.
Example 13:
a dual rotor motor structure device, the main technical content of which is as described in any one of embodiments 9 to 12, further, the inner shaft 904 and the outer shaft 905 can relatively move through the second bearing 901 and the third bearing 902.
Example 14:
a dual-rotor motor structure device, the main technical content of which is as in any one of embodiments 9 to 13, further, a fifth bearing 903, a positioning device I906 and a positioning device II907 are disposed between the inner shaft 904 and the outer shaft 905.
The fifth bearing 903 is located between the inner shaft 904 and the outer shaft 905 on the side near the front end cap 1 for auxiliary support.
The positioning means I906 is used for locking the fifth bearing 903.
The positioning device II907 is used to lock the second bearing 901 and the third bearing 902.
Example 15:
a dual-rotor motor structure device, the main technical content of which is as in any one of embodiments 9 to 14, further, the third bearing 902 and the outer shaft 905 are provided with a washer 908 in a moving direction relative to each other.
Example 16:
the main technical content of the double-rotor motor structure device is as in any one of embodiments 9 to 15, further, a plurality of through holes are further formed in the rear end cover 8 for assembling a wire holder.
Example 17:
referring to fig. 1, a dual-rotor motor structure device mainly comprises:
the motor sealing structure comprises a front end cover, a shell, a stator, an inner rotor, an outer rotor, a controller box, a position sensor and a rear cover.
The stator includes stator winding iron core 1, stator winding iron core 2 and casing, and the casing inner wall is the drum structure, and with mutual interference fit of stator winding iron core, the casing appearance design appearance can be drum shape according to the service conditions, also can be square equi-shape only need guarantee casing wall thickness can, the casing inner wall be equipped with wire casing (hole), make things convenient for the three phase line of one of them stator and the line of sensor to pass inside the stator.
The stator winding iron core is pressed into the shell from two ends respectively, the relative positions of the stator winding iron core and the shell are guaranteed simultaneously, a front end cover and a rear end cover are arranged at two ends of the shell, the controller box is arranged on the rear end cover, and the rear cover is arranged on the controller box.
The inner rotor consists of an inner shaft, a rotor hub 1, a permanent magnet rotor 1 and other auxiliary parts.
The permanent magnet rotor 1 is composed of a rotor core 1, magnetic steel, a sleeve and a locking device, wherein the magnetic steel is firstly limited on the rotor core 1 through different auxiliary materials, and the sleeve is sleeved on the outer wall of the magnetic steel to ensure that the magnetic steel is uniformly stressed when the rotor runs at a high speed, so that phenomena of breakage, unstable fastening and the like are avoided.
And then the permanent magnet rotor 1 is sleeved on the rotor hub 1 according to the relative position, and the permanent magnet rotor 1 is fixed by a locking device, so that the permanent magnet rotor 1 and the rotor hub 1 are ensured not to generate axial play and circumferential sliding.
The assembled rotor hubs are assembled to the inner shaft in turn by means of a keyed connection to form an inner rotor.
The outer rotor consists of an outer shaft, a rotor hub 2, a permanent magnet rotor 2 and other auxiliary parts.
The permanent magnet rotor 2 is composed of a rotor core 2, magnetic steel, a sleeve and a locking device, wherein the magnetic steel is firstly limited on the rotor core 2 through different auxiliary materials, and the sleeve is sleeved on the outer wall of the magnetic steel to ensure that the magnetic steel is uniformly stressed when the rotor runs at a high speed, so that phenomena of breakage, unstable fastening and the like are avoided.
And then the permanent magnet rotor 2 is sleeved on the rotor hub 2 according to the relative position, and the permanent magnet rotor 2 is fixed by a locking device, so that the permanent magnet rotor 2 and the rotor hub 2 are ensured not to generate axial play and circumferential sliding.
The assembled rotor hub is assembled to the outer shaft in turn by means of a keyed connection, forming an outer rotor.
Double-rotor support design:
the supporting structure of the whole system consists of a shell, a front end cover, a rear end cover, a rotor assembly and other supporting pieces, and the supporting structure is analyzed in detail:
the machine shell is regarded as a fixing piece, the front end cover and the rear end cover are respectively assembled and fixed on the machine shell, the front end cover and the rear end cover are respectively provided with a central hole, the central holes are respectively provided with a bearing 1 and a bearing 4 which are used as auxiliary supports, wherein the bearing 1 is connected with an inner shaft, the bearing 1 is connected with an outer shaft, the inner shaft and the outer shaft are in supporting connection with a bearing 2 and a bearing 3, and the bearing 5 is used as auxiliary supports.
The supporting framework is as follows:
the left side of the inner shaft is supported on a rear end cover through a bearing 1, the rear end cover is supported on the shell, and the right side of the inner shaft is supported on the outer shaft through a bearing 2 and a bearing 3.
The left side of the outer shaft is supported with the inner shaft through a bearing 2 and a bearing 3, the right side of the outer shaft is supported on a front end cover through a bearing 4, and the front end cover is supported on the shell.
From the above description it can be seen that the inner and outer shafts can be seen as one whole through the bearings 2 and 3, supported on the housing through the front and rear end caps.
The assembly sequence is as follows:
1. first the front end cap and the housing are assembled together, the so-called support 1.
2. The method comprises the steps of assembling a bearing 1 on a rear end cover, locking the bearing on the rear end cover by a bearing cover, sleeving the rear end cover provided with the bearing into an inner rotor 1, and locking a sensor rotor and the rear end cover provided with the bearing on the inner rotor together by a locking device to form an inner rotor assembly.
3. The bearing 2, the limiting sleeve and the bearing 3 are sleeved in the inner rotor at the illustrated position in sequence.
4. The outer rotor assembly is formed by telescoping the bearing 5 into the outer rotor and locking the bearing 5 with a positioning device.
5. And a gasket is arranged at the illustrated position of the outer rotor assembly, and then the outer rotor assembly is sleeved into the inner rotor assembly and fixed by a positioning device to form a rotor supporting structure.

Claims (8)

1. A dual rotor motor structure device, comprising: the device comprises a front end cover (1), a shell (2), a stator (3), an inner rotor (4), an outer rotor (5), a controller box (6), two sensor rotors (7), a rear end cover (8), a rotating shaft (9) and a rear cover (10);
the front end cover (1) and the rear end cover (8) are respectively assembled at two ends of the shell (2);
the front end cover (1) is provided with a central hole I (101);
a fourth bearing (102) is arranged on the central hole I of the front end cover (1).
The fourth bearing (102) is fixed on the front end cover (1) through a bearing cover.
The inner wall of the shell (2) is of a cylindrical structure;
the stator (3), the inner rotor (4) and the outer rotor (5) are all loaded in the shell (2);
the stator (3) comprises a stator winding iron core I (301) and a stator winding iron core II (302);
the stator winding iron core I (301), the stator winding iron core II (302) and the inner wall of the shell (2) are in interference fit;
the stator winding iron core I (301) is positioned between the inner wall of the shell (2) and the inner rotor (4);
the stator winding iron core II (302) is positioned between the inner wall of the shell (2) and the outer rotor (5);
the inner rotor (4) comprises a rotor hub I (401) and a permanent magnet rotor I (402);
the permanent magnet rotor I (402) is sleeved into the rotor hub I (401);
the outer rotor (5) comprises a rotor hub II (501) and a permanent magnet rotor II (502);
the permanent magnet rotor II (502) is sleeved into the rotor hub II (501);
the controller box (6) is arranged at one side of the rear end cover (8) far away from the shell (2);
the sensor rotor (7) comprises a locking device I (701), a position sensor I (702), a locking device II (703) and a position sensor II (704);
the position sensor I (702) is fixed on the fourth bearing (102) of the front end cover (1) through a locking device I (701);
the position sensor II (704) is fixed on the rear end cover (8) through a locking device II (703);
a central hole II (801) is formed in the rear end cover (8);
a first bearing (802) is arranged on the central hole II of the rear end cover (8);
the first bearing (802) is fixed on the rear end cover (8) through a bearing cover;
the first bearing (802) is fixedly connected with the position sensor II (704) through the locking device II (703);
the rotating shaft (9) comprises a second bearing (901), a third bearing (902), an inner shaft (904) and an outer shaft (905);
the inner shaft (904) and the outer shaft (905) are connected by a second bearing (901) and a third bearing (902);
the inner shaft (904) is connected with a first bearing (802) of the rear end cover (8);
a rotor hub I (401) of the inner rotor (4) is assembled on the inner shaft (904) through key connection;
the outer shaft (905) is connected with a fourth bearing (102) of the front end cover (1);
a rotor hub II (501) of the outer rotor (5) is assembled on the outer shaft (905) through key connection;
the rotating shaft (9) is transversely inserted into the shell (2) through a central hole I (101) of the front end cover (1) and a central hole II (801) of the rear end cover (8);
the rear cover (10) is arranged on one side of the controller box (6) far away from the rear end cover (8).
2. A double rotor motor structure according to claim 1, characterized in that the inner wall of the housing (2) is provided with a wire-through slot for placing the three phase wires of the stator and the sensor wires.
3. The dual rotor motor structure according to claim 1, wherein the permanent magnet rotor I (402) and the permanent magnet rotor II (502) each comprise a rotor core, a magnet steel, a sleeve, and a locking device;
the magnetic steel is restrained on the rotor core through auxiliary materials;
a sleeve is sleeved on the outer wall of the magnetic steel;
the locking device is used for locking the permanent magnet rotor.
4. The dual rotor motor structure device according to claim 1, wherein a stop collar (909) is further provided between the second bearing (901) and the third bearing (902).
5. A double rotor motor arrangement according to claim 1, characterized in that the inner shaft (904) and the outer shaft (905) are movable relative to each other via a second bearing (901) and a third bearing (902).
6. The dual rotor motor structure device according to claim 1, wherein a fifth bearing (903), a positioning device I (906) and a positioning device II (907) are further arranged between the inner shaft (904) and the outer shaft (905);
the fifth bearing (903) is positioned between the inner shaft (904) and the outer shaft (905) and is close to one side of the front end cover (1) and used for auxiliary support;
the positioning device I (906) is used for locking a fifth bearing (903);
the positioning device II (907) is used for locking the second bearing (901) and the third bearing (902).
7. A double rotor motor arrangement according to claim 1, characterized in that the third bearing (902) is further provided with washers (908) in the direction of relative movement with the outer shaft (905).
8. The double-rotor motor structure device according to claim 1, wherein the rear end cover (8) is further provided with a plurality of through holes for assembling a wire holder.
CN202311409576.9A 2023-10-27 2023-10-27 Double-rotor motor structure device Pending CN117277717A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311409576.9A CN117277717A (en) 2023-10-27 2023-10-27 Double-rotor motor structure device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311409576.9A CN117277717A (en) 2023-10-27 2023-10-27 Double-rotor motor structure device

Publications (1)

Publication Number Publication Date
CN117277717A true CN117277717A (en) 2023-12-22

Family

ID=89200885

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311409576.9A Pending CN117277717A (en) 2023-10-27 2023-10-27 Double-rotor motor structure device

Country Status (1)

Country Link
CN (1) CN117277717A (en)

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