阅读说明：本技术 一种差动转子结构电机 (Motor with differential rotor structure ) 是由 丁瑞 于 2019-11-29 设计创作，主要内容包括：本发明公开了一种差动转子结构电机，包括行星差动机构，所述的行星差动机构具有中心轮自由度、外齿圈自由度和行星架自由度，所述的中心轮自由度连接着限流转子，外齿圈自由度和行星架自由度一对一与调速转子和输出轴连接；所述的限流转子外侧设置有限流定子，调速转子外侧设置有调速定子，所述的限流转子和调速转子内设有旋转感应部件，限流定子和调速定子内设有激磁感应部件；所述的限流定子和调速定子固定在机壳上，所述的机壳支撑安装着行星差动机构、限流转子、调速转子和输出轴。本装置提供的差动转子结构电机变速变矩范围宽，能长时间适应过载，启动损耗小，有利于节能选配。(The invention discloses a motor with a differential rotor structure, which comprises a planetary differential mechanism, wherein the planetary differential mechanism is provided with a central wheel freedom degree, an outer gear ring freedom degree and a planet carrier freedom degree; the outer side of the current limiting rotor is provided with a current limiting stator, the outer side of the speed regulating rotor is provided with a speed regulating stator, the current limiting rotor and the speed regulating rotor are internally provided with rotary induction parts, and the current limiting stator and the speed regulating stator are internally provided with excitation induction parts; the current-limiting stator and the speed-regulating stator are fixed on a casing, and the casing is supported and provided with a planetary differential mechanism, a current-limiting rotor, a speed-regulating rotor and an output shaft. The motor with the differential rotor structure has wide speed and torque changing range, can adapt to overload for a long time, has low starting loss and is beneficial to energy saving and matching.)

1. A differential rotor structure motor comprises a planetary differential mechanism (4), and is characterized in that: the planetary differential mechanism (4) is provided with a central wheel freedom degree (1), an outer gear ring freedom degree (2) and a planet carrier freedom degree (3), the central wheel freedom degree (1) is connected with the current limiting rotor (5), and the outer gear ring freedom degree (2) and the planet carrier freedom degree (3) are connected with the speed regulating rotor (7) and the output shaft (9) in a one-to-one manner; a current limiting stator (6) is arranged on the outer side of the current limiting rotor (5), and a speed regulating stator (8) is arranged on the outer side of the speed regulating rotor (7); the current limiting stator (6) and the speed regulating stator (8) are fixed on a machine shell (10), and the machine shell (10) is supported and provided with a planetary differential mechanism (4), a current limiting rotor (5), a speed regulating rotor (7) and an output shaft (9).

2. A differential rotor structure motor as claimed in claim 1, wherein: the current limiting rotor (5) and the current limiting stator (6) correspondingly form a current limiting electric unit, and the speed regulating rotor (7) and the speed regulating stator (8) correspondingly form a speed regulating electric unit; and rotary induction components are arranged inside the current limiting rotor (5) and the speed regulating rotor (7), and excitation induction components are arranged inside the current limiting stator (6) and the speed regulating stator (8).

3. A differential rotor structure motor as claimed in claim 1, wherein the planetary differential mechanism (4) is connected with a current limiting rotor (5), a speed regulating rotor (7) and an output shaft (9), characterized in that: the current-limiting rotor (5) is connected with the central wheel freedom degree (1), the speed-regulating rotor (7) is connected with the outer gear ring freedom degree (2), and the output shaft (9) is connected with the planet carrier freedom degree (3).

4. A differential rotor structure motor as claimed in claim 1, wherein the planetary differential mechanism (4) is connected to a current limiting rotor (5), a speed regulating rotor (7) and an output shaft (9), and further characterized in that: the current limiting rotor (5) is connected with the central wheel freedom degree (1), the speed regulating rotor (7) is connected with the planet carrier freedom degree (3), and the output shaft (9) is connected with the outer gear ring freedom degree (2).

5. A differential rotor structure motor as claimed in claim 1, wherein the planetary differential mechanism (4) is connected to a current limiting rotor (5), a speed regulating rotor (7) and an output shaft (9), and further characterized in that: the current-limiting rotor (5) is connected with the center wheel freedom degree (1), the speed-regulating rotor (7) is in transmission connection with the outer gear ring freedom degree (2) through a transmission mechanism (15), and the output shaft (9) is connected with the planet carrier freedom degree (3).

6. A differential rotor structure motor as claimed in claim 2, wherein: the current-limiting rotor (5) and the speed-regulating rotor (7) are internally provided with rotary induction components, and the rotary induction components are a current-limiting rotor winding coil (11) and a speed-regulating rotor winding coil (13), and can also be a squirrel-cage rotor or a permanent magnet rotor; excitation induction parts are arranged in the current limiting stator (6) and the speed regulating stator (8), and the excitation induction parts are a current limiting stator winding coil (12) and a speed regulating stator winding coil (14) and can also be permanent magnet stators.

7. A differential rotor structure motor according to claim 2 or 6, wherein: at least one of the current-limiting rotor winding coil (11) and the current-limiting stator winding coil (12) is connected with the speed-regulating rotor winding coil (13) in series; at least one of the current-limiting rotor winding coil (11) and the current-limiting stator winding coil (12) is connected in series with the speed-regulating stator winding coil (14).

8. A differential rotor structure motor according to any one of claims 3, 4 or 5, wherein: the function and the name of the current limiting rotor (5) and the speed regulating rotor (7) can be interchanged.

Technical Field

The invention relates to the technical field of motors, in particular to a motor with a differential rotor structure.

Background

The motor is widely applied to various devices and tools, and the performance requirement of the motor is higher and higher in order to meet the use effects of different devices and tools. The existing motor still has certain limitations in the aspects of speed change, torque conversion, energy conservation, overload prevention, impact resistance and the like, and has the defects of large starting loss, easy burning of overload, small speed change and torque change range, low matching energy-saving efficiency and the like.

Disclosure of Invention

The invention aims to provide a motor with a differential rotor structure, which solves the problems of large starting loss, small range of speed and torque variation, easy burning of overload and low matching efficiency of the motor in the background technology. In order to achieve the purpose, the invention provides the following technical scheme: a motor with a differential rotor structure comprises a planetary differential mechanism, wherein the planetary differential mechanism is provided with a central wheel degree of freedom, an outer gear ring degree of freedom and a planet carrier degree of freedom; the outer side of the flow limiting rotor is provided with a flow limiting stator, and the outer side of the speed regulating rotor is provided with a speed regulating stator; the current-limiting stator and the speed-regulating stator are fixed on a casing, and the casing is supported and provided with a planetary differential mechanism, a current-limiting rotor, a speed-regulating rotor and an output shaft.

Preferably, the current-limiting rotor and the current-limiting stator correspond to form a current-limiting electric unit, and the speed-regulating rotor and the speed-regulating stator correspond to form a speed-regulating electric unit; the current-limiting rotor and the speed-regulating rotor are internally provided with rotary induction parts, and the current-limiting stator and the speed-regulating stator are internally provided with excitation induction parts.

Preferably, the planet differential mechanism is connected with a current limiting rotor, a speed regulating rotor and an output shaft, the current limiting rotor is connected with the center wheel in freedom degree, the speed regulating rotor is connected with the outer gear ring in freedom degree, and the output shaft is connected with the planet carrier in freedom degree.

Preferably, the planetary differential mechanism is connected with a current limiting rotor, a speed regulating rotor and an output shaft, the current limiting rotor is connected with the center wheel in freedom degree, the speed regulating rotor is connected with the planet carrier in freedom degree, and the output shaft is connected with the outer gear ring in freedom degree.

Preferably, the planet differential mechanism is connected with a current limiting rotor, a speed regulating rotor and an output shaft, the current limiting rotor is connected with the freedom degree of the central wheel, the speed regulating rotor is in transmission connection with the freedom degree of the outer gear ring through a transmission mechanism, and the output shaft is connected with the freedom degree of the planet carrier.

Preferably, the current-limiting rotor and the speed-regulating rotor are internally provided with rotary induction components, and the rotary induction components are current-limiting rotor winding coils and speed-regulating rotor winding coils, and can also be squirrel-cage rotors or permanent magnet rotors; excitation induction parts are arranged in the current-limiting stator and the speed-regulating stator, and the excitation induction parts can be current-limiting stator winding coils and speed-regulating stator winding coils, and can also be permanent magnet stators.

Preferably, at least one of the current-limiting rotor winding coil and the current-limiting stator winding coil is connected with the speed-regulating rotor winding coil in series; at least one of the current-limiting rotor winding coil and the current-limiting stator winding coil is connected with the speed-regulating stator winding coil in series.

Preferably, the roles and names of the current limiting rotor and the speed regulating rotor can be interchanged.

The invention has the technical effects and advantages that: the device is provided with a current limiting rotor and a speed regulating rotor which are connected with a three-degree-of-freedom planetary differential mechanism, and the planetary differential mechanism is connected with an output shaft for output. When the load of the output shaft changes, the current-limiting rotor can keep stable operation, the current is limited to the power supply of the motor through the inductor, the speed-regulating rotor can generate differential operation along with the planetary differential mechanism, the output rotating speed and the torque of the motor are regulated, and the balance is kept with the load. Therefore, the motor with the differential rotor structure has wide speed and torque changing range, can adapt to overload for a long time, has small starting loss and is beneficial to energy-saving matching.

Drawings

FIG. 1 is a schematic structural view of embodiment 1 of the present invention;

FIG. 2 is a schematic structural diagram of embodiment 2 of the present invention;

FIG. 3 is a schematic structural diagram of embodiment 3 of the present invention;

fig. 4 is a schematic structural diagram of the planetary differential mechanism of the present invention.

In the figure: 1-degree of freedom of a central wheel, 2-degree of freedom of an outer gear ring, 3-degree of freedom of a planet carrier, 4-planetary differential mechanism, 5-current limiting rotor, 6-current limiting stator, 7-speed regulating rotor, 8-speed regulating stator, 9-output shaft, 10-machine shell, 11-current limiting rotor winding coil, 12-current limiting stator winding coil, 13-speed regulating rotor winding coil, 14-speed regulating stator winding coil and 15-transmission mechanism.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described below by combining the specific drawings. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "connected," "connected," and "mounted" are to be construed broadly, e.g., as meaning either a fixed connection, an integral connection, or a removable connection; the connecting rods can be directly connected, indirectly connected through an intermediate medium, and communicated from the inside of the elements.