CN115514180A

CN115514180A - Differential dual-output motor

Info

Publication number: CN115514180A
Application number: CN202211009948.4A
Authority: CN
Inventors: 戴启迪; 戴逸凡
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2022-12-23

Abstract

The invention discloses a differential double-output motor which comprises a rotor set and a stator set, wherein the rotor set comprises a rotor and a stator; the rotor set comprises a first rotor and a second rotor which are coaxially and rotationally connected, and output shafts of the first rotor and the second rotor are deviated; the stator set can be sleeved outside the rotor set in a sliding mode along the length direction, and the sleeved length of the stator set and the first rotor and the sleeved length of the stator set and the second rotor are changed through sliding of the stator set. When the stator group slides to change the length of the stator group sleeved on the first rotor and the second rotor, the acting force of the magnetic field generated by the stator group on the first rotor and the second rotor is changed, so that the linkage regulation and control of two output shafts of the motor by using one set of the stator and the rotor are realized. Compared with the prior art that two mutually independent motors are arranged and are independently controlled and used, the invention has the advantages of simpler structure, easier control and low cost, and can realize the real-time linkage of two output shafts.

Description

Differential dual-output motor

Technical Field

The invention mainly relates to the technical field of motors, in particular to a differential dual-output motor.

Background

In some specific application scenarios, two output shafts of the motor are required to controllably output different powers in a linkage manner. In order to realize the function, the prior art adopts a double-motor structure, the structure needs to be provided with two mutually independent motors, the two motors are respectively and independently controlled and used, the total power cannot be freely distributed to two output shafts, and the power of the output shafts can only be regulated within the range of a single motor by means of electric control, so that the real-time linkage is difficult to realize. And the double-motor structure comprises two independent motors, so the size is overlarge and the cost is overhigh. Therefore, a motor capable of realizing dual output by using one set of stator and rotor is needed.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a differential double-output motor.

In order to solve the technical problems, the invention adopts the following technical scheme:

a differential double-output motor comprises a rotor set and a stator set; the rotor set comprises a first rotor and a second rotor which are coaxially and rotationally connected, and output shafts of the first rotor and the second rotor are deviated; the stator group can be sleeved outside the rotor group in a sliding mode along the length direction, and the sleeved length of the stator group and the first rotor and the sleeved length of the stator group and the second rotor are changed through sliding.

As a further improvement of the above technical solution:

the first rotor and the second rotor are coaxially and rotatably connected through a first bearing.

The stator group comprises a plurality of stators, and each stator is sleeved outside the rotor group in a manner of being capable of independently sliding along the length direction.

The differential double-output motor further comprises a mounting seat, the rotor set is connected with the mounting seat in a rotating mode, and the stator set is connected with the mounting seat in a sliding mode.

The mounting seat comprises two side plates which are distributed oppositely, the rotor set is rotatably arranged between the two side plates, and the output shaft of the rotor set penetrates out of the side plates on the corresponding side.

The side plate is connected with the output shaft through a second bearing.

The two side plates are connected through a plurality of parallel sliding rods; the stator group is slidably arranged on the sliding rod in a penetrating mode.

Compared with the prior art, the invention has the advantages that:

the stator group is sleeved outside the rotor group in a sliding mode along the length direction, when the stator group is slid to change the length of the stator group sleeved outside the rotor I and the rotor II, the acting force of a magnetic field generated by the stator group on the rotor I and the rotor II is changed accordingly, and because the total length of the stator group is unchanged, when the length of the stator group sleeved on the rotor I is changed, the length of the stator group sleeved on the rotor II is changed synchronously, so that the linkage regulation and control of two output shafts of the motor by using one set of the stator and the rotor are realized. Need be equipped with two mutually independent motors for prior art to carry out independent control and use to two motors, the technical scheme structure disclosed in this application is simpler, control easier, and low in cost, and can realize the real-time linkage of two output shafts.

Drawings

FIG. 1 is a perspective view of a differential dual output motor;

FIG. 2 is a schematic perspective cross-sectional view of a differential dual output motor;

FIG. 3 is a schematic diagram of a differential dual-output motor configuration (state one);

fig. 4 is a schematic structural diagram (state two) of the differential dual-output motor.

The reference numerals in the figures denote: 1. a rotor set; 11. a first rotor; 12. a second rotor; 13. an output shaft; 2. a stator group; 21. a stator; 3. a first bearing; 4. a mounting seat; 41. a side plate; 42. a slide bar; 5. and a second bearing.

Detailed Description

The invention will be described in further detail below with reference to the drawings and specific examples.

As shown in fig. 1 to 4, the differential dual-output motor of the present embodiment includes a rotor set 1 and a stator set 2; the rotor set 1 comprises a first rotor 11 and a second rotor 12 which are coaxially and rotationally connected, and an output shaft 13 of the first rotor 11 and an output shaft 13 of the second rotor 12 deviate from each other; the stator set 2 is slidably sleeved outside the rotor set 1 along the length direction, and the sleeved length of the stator set 2 with the first rotor 11 and the sleeved length of the stator set 2 with the second rotor 12 are changed by sliding. Rotor 11 and rotor two 12 are column structure and the central axis coincidence, and two rotors all have output shaft 13 at one end shaping, and the one end that deviates from output shaft 13 rotatably forms the connection, and rotor 11 and rotor two 12 all can rotate around the central axis independently. The stator assembly 2 is in a cylindrical shell shape, is sleeved outside the first rotor 11 and the second rotor 12, is not rotatable, but can move along the length direction of the rotor assembly 1. After the motor is electrified, the rotor group 1 forms a rotating magnetic field, the stator group 2 generates alternating current, the magnetic fields generated by the rotor group 1 and the stator group 2 generate force action on the rotor group 1 and the stator group 2, and the rotor group 1 rotates under the pushing of the force because the stator group 2 cannot rotate. The longer the length of the stator set 2 sleeved outside the rotor is, the larger the force of the magnetic field generated by the stator set 2 acting on the rotor is, so the faster the rotation speed of the rotor is, and vice versa. By slidably sleeving the stator group 2 outside the rotor group 1 along the length direction, when the length of the stator group 2 sleeved outside the first rotor 11 and the second rotor 12 is changed by sliding the stator group 2, the acting force of the magnetic field generated by the stator group 2 on the first rotor 11 and the second rotor 12 is changed accordingly, and because the total length of the stator group 2 is unchanged, when the length of the stator group 2 sleeved on the first rotor 11 is changed, the length of the stator group sleeved on the second rotor 12 is also changed synchronously, so that the linkage regulation and control of two output shafts 13 of the motor by using one set of stator and rotor is realized. Need be equipped with two mutually independent motors for prior art to carry out independent control and use to two motors, the technical scheme structure disclosed in this application is simpler, control easier, and low in cost, and can realize the real-time linkage of two output shafts 13.

In this embodiment, the first rotor 11 and the second rotor 12 are coaxially and rotationally connected through the first bearing 3. A first bearing 3 is arranged at the connecting end of the first rotor 11 and the second rotor 12, the first rotor 11 is fixedly connected with an outer ring (or an inner ring) of the bearing, and the second rotor 12 is fixedly connected with an inner ring (or an outer ring) of the bearing. The first rotor 11 and the second rotor 12 connected through the first bearing 3 are relatively fixed in the axial direction, but can rotate around the central axis independently. By arranging the first bearing 3, friction generated when the first rotor 11 and the second rotor 12 rotate relatively can be effectively reduced, and therefore the service life of the equipment is prolonged.

In this embodiment, the stator assembly 2 includes a plurality of stators 21, and each stator 21 is sleeved outside the rotor assembly 1 in a manner of being capable of sliding independently along the length direction. The stator group 2 is composed of a plurality of stators 21 sleeved on the rotor group 1, and each stator 21 is relatively independent and can slide along the length direction of the rotor group 1. As shown in fig. 3 and 4, the total length of the stators 21 sleeved on the first rotor 11 and the second rotor 12 can be changed by sliding the respective stators 21, so as to change the force exerted by the magnetic field on the first rotor 11 and the second rotor 12, and correspondingly change the rotating speed. When the integral stator group 2 needs to change the rotating speed of the two output shafts 13, the whole stator group 2 needs to be moved, when the volume and the mass of the stator group 2 are large, the movement of the whole stator group 2 is too laborious, and the movement precision is difficult to guarantee. In the technical scheme disclosed by the embodiment, the stator group 2 consisting of the plurality of independent stators 21 only needs to move individual stators 21 in the adjusting process and can be adjusted in batches, so that the adjusting device is more portable and flexible, the convenience of operation can be effectively improved, and the adjusting precision can be more easily controlled.

In this embodiment, the differential dual-output motor further includes a mounting base 4, the rotor assembly 1 is rotatably connected to the mounting base 4, and the stator assembly 2 is slidably connected to the mounting base 4. The mounting seat 4 is arranged to provide a mounting base for the rotor set 1 and the stator set 2, wherein in order to enable the rotor set 1 to freely rotate around a central axis, a hole is formed in the mounting seat 4, and the rotor set 1 is rotatably arranged in the hole in a penetrating way; meanwhile, in order to enable the stator group 2 to freely slide along the length direction of the rotor group 1, the mounting seat 4 and the stator group 2 are connected in a sliding manner, and the sliding direction is consistent with the length direction of the rotor group 1.

In this embodiment, the mounting seat 4 includes two side plates 41 distributed oppositely, the rotor set 1 is rotatably mounted between the two side plates 41, and the output shaft 13 of the rotor set 1 penetrates out of the side plate 41 on the corresponding side. The side plate 41 is connected with the output shaft 13 through a second bearing 5. The side plate 41 is provided with a hole, the bearing II 5 is fixed in the hole, the hole is fixed with the outer ring of the bearing II 5, the output shaft 13 is fixed with the inner ring of the bearing II 5, and the output shaft 13 can rotate around the central axis of the output shaft. By arranging the side plate 41, an installation base is provided for the rotor set 1, and meanwhile, in order to reduce friction between the output shaft 13 and the side plate 41, the bearing II 5 is arranged between the output shaft and the side plate, so that the service life of the equipment can be prolonged.

In this embodiment, the two side plates 41 are connected via a plurality of parallel slide bars 42; the stator group 2 is slidably disposed through the sliding rod 42. In order to realize the sliding installation of the stator group 2, a plurality of sliding rods 42 are arranged between the two side plates 41, and the sliding rods 42 are parallel to each other. The stator assembly 2 is formed with a plurality of through holes along the length direction thereof, and the sliding rods 42 pass through the through holes to form sliding connection. Specifically, each stator 21 is formed with a plurality of through holes along the length direction thereof, and the sliding rods 42 pass through the through holes to form a sliding connection.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention, unless the technical essence of the present invention departs from the content of the technical solution of the present invention.

Claims

1. A differential dual output motor characterized in that: comprises a rotor group (1) and a stator group (2); the rotor set (1) comprises a first rotor (11) and a second rotor (12) which are coaxially and rotationally connected, and output shafts (13) of the first rotor (11) and the second rotor (12) are deviated; the stator group (2) can be sleeved outside the rotor group (1) in a sliding manner along the length direction, and the sleeved length of the stator group (2) and the first rotor (11) and the sleeved length of the stator group and the second rotor (12) are changed through sliding.

2. The differential dual-output motor according to claim 1, characterized in that: the first rotor (11) and the second rotor (12) are coaxially and rotationally connected through a first bearing (3).

3. The differential dual-output motor according to claim 1, characterized in that: the stator group (2) comprises a plurality of stators (21), and each stator (21) is sleeved outside the rotor group (1) in a manner of being capable of sliding independently along the length direction.

4. The differential dual-output motor according to any one of claims 1-3, characterized in that: the differential double-output motor further comprises a mounting seat (4), a rotor set (1) is rotationally connected with the mounting seat (4), and a stator set (2) is slidably connected with the mounting seat (4).

5. The differential dual-output motor according to claim 4, wherein: the mounting seat (4) comprises two side plates (41) which are distributed oppositely, the rotor set (1) is rotatably mounted between the two side plates (41), and an output shaft (13) of the rotor set (1) penetrates out of the side plate (41) on the corresponding side.

6. The differential dual-output motor according to claim 5, wherein: and the side plate (41) is connected with the output shaft (13) through a second bearing (5).

7. The differential dual-output motor according to claim 5, wherein: the two side plates (41) are connected through a plurality of parallel sliding rods (42); the stator group (2) is slidably arranged on the sliding rod (42) in a penetrating way.