CN215419798U

CN215419798U - Permanent magnet semi-direct-drive motor flexible rotor

Info

Publication number: CN215419798U
Application number: CN202120706806.8U
Authority: CN
Inventors: 戴蒙龙; 黄中明; 袁安金; 孙孝东; 任晓东
Original assignee: Daqing Hongming Technology Co ltd
Current assignee: Daqing Hongming Technology Co ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2022-01-04
Anticipated expiration: 2031-04-08

Abstract

The utility model provides a half direct drive motor flexible rotor of permanent magnetism mainly comprises magnet steel and rotor support, the magnet steel is arc, even distribution is on rotor support's outer circumferential surface, rotor support comprises outer loop, elastic layer, inner ring, the inner peripheral face evenly distributed a plurality of gusset of outer ring, the outer peripheral face evenly distributed a plurality of gusset of inner ring, the elastic layer is located in the middle of outer loop, the inner ring, the three passes through mould integrated into one piece, the rotor support who processes the shaping like this possesses certain elasticity, therefore, the half direct drive motor of permanent magnetism of having installed this kind of flexible rotor can be when driving beam-pumping unit operation, can protect the gear of speed reducer to avoid impact load, the life of extension gear.

Description

Permanent magnet semi-direct-drive motor flexible rotor

Technical Field

The utility model relates to the technical field of motors, in particular to a permanent magnet semi-direct drive motor flexible rotor.

Background

The walking beam type oil pumping machine is a main crude oil lifting device at present, the traditional walking beam type oil pumping machine adopts a two-stage speed reducing mechanism of an induction motor, a belt pulley and a gear reduction box to drive an oil pumping rod to reciprocate to lift crude oil, the system efficiency is low, the belt abrasion loss is large, the prior art discloses a semi-direct-drive permanent magnet torque motor, the belt transmission is cancelled, and the input shaft of the reduction box is directly driven to carry out transmission.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a permanent magnet semi-direct drive motor flexible rotor. The problem of among the prior art because of half direct drive motor rotational speed is invariable, lead to the gear to receive alternating load is solved.

In order to solve the problems: the permanent magnet semi-direct-drive motor flexible rotor mainly comprises magnetic steel (1) and a rotor support, wherein the rotor support comprises an outer ring (2), an elastic layer (3) and an inner ring (4).

The rotor is characterized in that the magnetic steel (1) is arc-shaped and evenly distributed on the outer surface of the rotor support, the rotor support is composed of an outer ring (2), an elastic layer (3) and an inner ring (4), a plurality of rib plates are evenly distributed on the inner circumferential surface of the outer ring (2), a plurality of rib plates are evenly distributed on the outer circumferential surface of the inner ring (4), and the elastic layer (3) is located between the outer ring and the inner ring.

The outer ring (2), the elastic layer (3) and the inner ring (4) are integrally formed through a die.

The elastic layer (3) is made of rubber.

Compared with the prior art, the utility model has the following beneficial effects.

1. The rotor support is formed by integrally forming the outer ring, the elastic layer and the inner ring, so that the strength of the rotor support can meet the strength requirements of the motor under normal operation and limit working conditions, and the outer ring and the inner ring can rotate relatively when the motor is under the action of external force due to the action of the elastic layer, so that a certain buffering effect on external load is achieved.

2. The elastic layer all has good elasticity in all directions, and there is axial float at the operation in-process in the input shaft of most beam-pumping unit speed reducers at present, and elastic layer self has elasticity, makes outer loop and inner ring have a relative slip, plays the cushioning effect.

3. The elastic layer has good compressibility, so that the magnetic steel can ensure good concentricity with the stator under the action of magnetic force.

Drawings

FIG. 1 is a front view of a flexible rotor of a permanent magnet semi-direct drive motor.

FIG. 2 is a side view of a permanent magnet semi-direct drive motor flexible rotor.

FIG. 3 is a front view cross section of a flexible rotor of a permanent magnet semi-direct drive motor.

FIG. 4 is a side sectional view of a flexible rotor of a permanent magnet semi-direct drive motor according to the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As shown in the figure, the permanent magnet semi-direct-drive motor flexible rotor mainly comprises magnetic steel (1) and a rotor support, wherein the rotor support comprises an outer ring (2), an elastic layer (3) and an inner ring (4).

The outer ring (2), the elastic layer (3) and the inner ring (4) are integrally formed through a die, and the elastic layer (3) is made of rubber.

The utility model is particularly suitable for the field of permanent magnet semi-direct drive motors for pumping units, but is not limited to the field. The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a permanent magnetism half directly drives flexible rotor of motor, characterized by comprises magnet steel (1) and spider, spider comprises outer loop (2), elastic layer (3), inner ring (4), its characterized in that magnet steel (1) are arc, even distribution is in spider's outer circumferential surface, spider comprises outer loop (2), elastic layer (3), inner ring (4), a plurality of gusset of circumferential evenly distributed in outer loop (2), a plurality of gusset of circumferential evenly distributed in inner ring (4), elastic layer (3) are located the two in the middle of.

2. The permanent magnet semi-direct drive motor flexible rotor as claimed in claim 1, wherein the outer ring (2), the elastic layer (3) and the inner ring (4) are integrally formed through a die.

3. The permanent magnet semi-direct drive motor flexible rotor as claimed in claim 1, wherein the elastic layer (3) is made of rubber.