CN219227305U

CN219227305U - Improved rotor of direct-drive motor

Info

Publication number: CN219227305U
Application number: CN202320305916.2U
Authority: CN
Inventors: 王碧荣; 马军; 王静
Original assignee: Jiangsu Wangpai Motor Manufacturing Co ltd
Current assignee: Jiangsu Wangpai Motor Manufacturing Co ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-06-20
Anticipated expiration: 2033-02-24

Abstract

The utility model relates to an improved rotor of a direct-drive motor, which comprises a main body, wherein a rotating shaft is arranged in the middle of the main body, a direct-drive rotor is rotatably arranged on the rotating shaft, a rotor iron core and a shaft hole are cooperatively arranged on the direct-drive rotor, a double-stack self-locking gasket is arranged on the direct-drive rotor, the double-stack self-locking gasket is fixed on the direct-drive rotor through a bolt, and a direct-drive connecting sheet is further arranged on the double-stack self-locking gasket, and the direct-drive rotor further comprises a direct-drive permanent magnet and a rotor groove for placing the direct-drive permanent magnet.

Description

Improved rotor of direct-drive motor

Technical Field

The utility model relates to the technical field of motors, in particular to an improved rotor of a direct-drive motor.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to an electromagnetic induction law, the motor is represented by letter M in a circuit, the main function of the motor is to generate driving torque, the motor is used as a power source of an electric appliance or various machines, the generator is represented by letter G in the circuit, the main function of the motor is to convert mechanical energy into electric energy, but the current widely circulated motor in the market can generate severe vibration when in use, the motor cannot have a good damping mechanism, and the service life of a motor rotor in the motor is lower, so that the integral performance of the motor is inconsistent with the requirements of the current market.

Patent document CN2012101448034.6 describes a rotor of a segmented oblique pole type permanent magnet synchronous motor, wherein the rotor is a built-in permanent magnet rotor, the segmented rotors are connected in series through bolts, the problem of magnetic leakage easily occurs between the segmented rotors, and the oblique pole effect is poor. Moreover, the structure is complicated, and it is not preferable to pursue a certain performance alone to make the structure too complicated, and the too complicated structure itself may cause uncontrollability of the motor performance.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides an improved rotor of a direct-drive motor, which can effectively simplify the structure of the rotor, has reasonable design and can improve the structural strength of the rotor.

In order to achieve the above purpose, the utility model provides an improved rotor of a direct-drive motor, which comprises a main body, wherein a rotating shaft is arranged in the middle of the main body, the rotating shaft is rotatably provided with a direct-drive rotor, a rotor iron core and a shaft hole are cooperatively arranged on the direct-drive rotor, the direct-drive rotor is provided with a double-stack self-locking gasket, the double-stack self-locking gasket is fixed on the direct-drive rotor through a bolt, the double-stack self-locking gasket is further provided with a direct-drive connecting sheet, and the direct-drive rotor further comprises a direct-drive permanent magnet and a rotor groove for placing the direct-drive permanent magnet.

As a further improvement of the utility model, in order to ensure the magnetic field effect and the good connection during operation, the rotor iron core is provided with direct-drive magnets in a matching way, the direct-drive magnets are fixedly arranged along one circle of the rotating shaft, a plurality of direct-drive magnets are arranged, and the direct-drive magnets form a direct-drive magnetic ring.

As a further improvement of the utility model, in order to facilitate the installation of the magnets and ensure stable and reliable operation, the rotor slots are arranged in cooperation with the rotor core, the rotor core is connected with a rotor end ring, the rotor slots are arranged on the rotor end ring, and the rotor slots are arranged at intervals.

As a further improvement of the utility model, in order to ensure that the magnets are uniformly distributed and stably run when in work, the rotor grooves are uniformly distributed along the edge of the rotor end ring, and the rotor grooves are internally provided with direct-drive permanent magnets.

As a further improvement of the utility model, in order to avoid the influence of the rotating shaft on the magnetic field of the magnetic steel and improve the magnetic gathering capability of the rotor, a magnetism isolating sleeve is arranged between the direct-drive rotor and the rotating shaft, and the magnetism isolating sleeve is made of non-magnetic conductive materials.

As a further improvement of the utility model, in order to effectively prevent the magnetic conduction and leakage of the rotating shaft, the direct-drive permanent magnet comprises an N-pole permanent magnet and an S-pole permanent magnet, and the N-pole permanent magnet and the S-pole permanent magnet are arranged in the rotor groove at intervals.

When the utility model works, when three-phase symmetrical communication current is introduced, a rotating magnetic field is generated in the air gap space of the motor, a conductor of a stator winding and a rotor winding of the motor is positioned in the rotating magnetic field, the rotor conductor cuts magnetic force lines and generates induced potential, the direction of the induced potential is judged, the rotor conductor automatically forms a closed circuit through an end ring and generates electromagnetic force through interaction of the induced current and the rotating magnetic field, and the direction of the electromagnetic force is judged. Electromagnetic torque is generated when electromagnetic force acts on the rotor, and the rotor is driven to rotate.

The utility model has the beneficial effects that:

1. the motor has no rotor excitation, so the power factor is high and the current is small.

2. Low-speed direct drive, no meshing noise of high-speed gears, no noise of cooling fans, no high-speed rotation and no failure

Balancing the vibration noise.

Drawings

For the convenience of those skilled in the art, the present utility model will be further described with reference to the accompanying drawings:

fig. 1 is a structural diagram of the present utility model.

Fig. 2 is a view in the direction of fig. 1A.

Fig. 3 is a structural view of the rotor.

Wherein, 1 main body, 2 rotating shaft, 3 direct drive rotor, 4 rotor core, 5 shaft hole, 6 double-fold self-locking gasket, 7 direct drive connecting sheet, 8 direct drive permanent magnet, 801N pole permanent magnet, 802S pole permanent magnet, 9 rotor groove, 10 direct drive magnet, 11 direct drive magnetic ring, 12 rotor end ring, 13 magnetism isolating sleeve

Detailed Description

In order to better understand the technical solutions in the present application, the following description is further described with reference to fig. 1-3, and the following examples are only used to more clearly illustrate the technical solutions of the present utility model, and should not be construed to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model; furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated; thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature; in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two elements; the specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The improved rotor of the direct-drive motor shown in fig. 1-3 comprises a main body 1, a rotating shaft 2 is arranged in the middle of the main body 1, a direct-drive rotor 3 is rotatably arranged on the rotating shaft 2, a rotor iron core 4 and a shaft hole 5 are cooperatively arranged on the direct-drive rotor 3, a double-stack self-locking washer 6 is arranged on the direct-drive rotor 3, the double-stack self-locking washer 6 is fixed on the direct-drive rotor 3 through bolts, a direct-drive connecting sheet 7 is further arranged on the double-stack self-locking washer 6, and the direct-drive rotor 3 further comprises a direct-drive permanent magnet 8 and a rotor groove 9 for placing the direct-drive permanent magnet 8.

The rotor core 4 is provided with a direct-drive magnet 10 in a matching way, the direct-drive magnet 10 is fixedly arranged along the circumference of the rotating shaft 2, a plurality of direct-drive magnets 10 are arranged, and the direct-drive magnet 10 forms a direct-drive magnetic ring 11.

The rotor grooves 9 are matched with the rotor core 4, the rotor core 4 is connected with a rotor end ring 12, the rotor grooves 9 are arranged on the rotor end ring 12, and the rotor grooves 9 are arranged at intervals.

The rotor grooves 9 are uniformly distributed along the edge of the rotor end ring 12, and direct-drive permanent magnets 8 are arranged in the rotor grooves 9.

A magnetism isolating sleeve 13 is arranged between the direct-drive rotor 3 and the rotating shaft 2, and the magnetism isolating sleeve 13 is made of a non-magnetic conductive material.

The direct-drive permanent magnet 8 includes an N-pole permanent magnet 801 and an S-pole permanent magnet 802, and the N-pole permanent magnet 801 and the S-pole permanent magnet 802 are disposed in the rotor groove 9 at intervals.

When the direct-drive motor works, the high-temperature-resistant glue is firstly arranged, so that the direct-drive rotor 3 body has certain high-temperature resistance, the direct-drive rotor 3 body is prevented from being damaged by high heat generated during motor working, three-phase sine wave current is introduced into the main body 1 for generating a continuous running rotating magnetic field, the direct-drive rotor 3 is provided with the direct-drive permanent magnets 8, N pole permanent magnets 801 and S pole permanent magnets 802 on the direct-drive permanent magnets 8 are arranged at intervals, a plurality of N pole permanent magnets 801 and S pole permanent magnets 802 are arranged in a ring shape, and the stator of the main body 1 exerts a push-pull effect on the direct-drive permanent magnets 8 of the direct-drive rotor 3, so that torque is generated, and the direct-drive motor rotates the direct-drive rotor 3 and performs energy conversion.

The utility model is not limited to the above embodiments, and based on the technical solution disclosed in the utility model, a person skilled in the art may make some substitutions and modifications to some technical features thereof without creative effort according to the technical content disclosed, and these substitutions and modifications are all within the protection scope of the utility model.

Claims

1. The utility model provides an improvement rotor of direct-drive motor, includes main part (1), its characterized in that, main part (1) intermediate position is provided with pivot (2), rotatory being provided with on pivot (2) is direct to drive rotor (3), the cooperation is provided with rotor core (4) and shaft hole (5) on directly driving rotor (3), and this is direct to drive rotor (3) installation is provided with double-fold auto-lock packing ring (6), and this double-fold auto-lock packing ring (6) are fixed on directly driving rotor (3) through the bolt, double-fold auto-lock packing ring (6) still are provided with directly driving connection piece (7), still including directly driving permanent magnet (8) and being used for placing rotor groove (9) of directly driving permanent magnet (8) on directly driving rotor (3).

2. The improved rotor of a direct drive motor according to claim 1, wherein the rotor core (4) is provided with direct drive magnets (10) in a matched manner, the direct drive magnets (10) are fixedly installed along the rotating shaft (2) along a circle, the direct drive magnets (10) are provided with a plurality of direct drive magnets, and the direct drive magnets (10) form a direct drive magnetic ring (11).

3. An improved rotor of a direct drive motor according to claim 1, characterized in that the rotor grooves (9) are arranged in cooperation with the rotor core (4), the rotor core (4) is provided with a rotor end ring (12) in connection, the rotor grooves (9) are arranged on the rotor end ring (12), and the rotor grooves (9) are arranged at intervals.

4. An improved rotor for a direct drive motor according to claim 3, characterized in that the rotor slots (9) are evenly distributed along the edges of the rotor end ring (12), and that the rotor slots (9) are internally provided with direct drive permanent magnets (8).

5. An improved rotor of a direct drive motor according to claim 1, characterized in that a magnetism isolating sleeve (13) is arranged between the direct drive rotor (3) and the rotating shaft (2), and the magnetism isolating sleeve (13) is made of non-magnetic conductive material.

6. An improved rotor of a direct drive motor according to claim 1, characterized in that the direct drive permanent magnet (8) comprises an N-pole permanent magnet (801) and an S-pole permanent magnet (802), which N-pole permanent magnet (801) and S-pole permanent magnet (802) are arranged in the rotor groove (9) at a mutual distance.