TWM563112U - Improved motor rotor structure - Google Patents

Abstract

The present invention discloses an improved structure of a motor rotor comprising a bushing concentrically nested, a drive shaft, and a plurality of turns of the steel ring. The sleeve has an outer ring portion, an inner ring portion disposed on the inner ring side of the outer ring portion, and a plurality of frames connecting the inner and outer ring portions, wherein the outer ring portion further has at least one outer key groove. The drive shaft is disposed on the inner ring side of the inner ring portion. Each of the steel ring segments is sleeved on the outer ring side of the outer ring portion, and the matching outer key groove has at least one inner key. By the composition of the above components, the stability of the assembly and actuation of the components is ensured.

Description

Motor rotor structure improvement

This creation relates to the technical field of a motor power source, and in particular to a motor rotor structure improvement.

According to the structure of the conventional rotor 90 (refer to FIG. 4), the rotor core 91 composed of a plurality of stacked steel ring pieces 912, a rotating shaft 92 of a through-core shaft hole 914, and a winding ring are generally included. The rotor windings of the core slots 916 (not shown and are known in the art); wherein the rotating shaft 92 and the rotor core 91 are fixed and coordinated by the core key groove 918, the shaft keyway 922 and the key 93. The purpose. When this structure is implemented, there are some missing, for example:

The conventional rotor 90 is rotated by the electromagnetic torque, and the rotating shaft 92 is driven to output power. Since each of the steel ring pieces 912 (the rotor core 91) and the rotating shaft 92 depend only on the core key groove 918, the shaft key groove 922 and the key 93 to achieve a combination. During the process of moving the respective steel ring pieces 912 (the rotor core 91) to the rotating shaft 92, each of the steel ring pieces 912 (the rotor core 91) is prone to distortion misalignment or deformation, resulting in deviation of the rotor 90 operation, which is a precision numerical control operation process. It is often plagued by the industry.

In view of the above problems and deficiencies of the prior art, the main purpose of the present invention is to propose a motor rotor structure improvement through structural design to overcome the above-mentioned lack of prior art.

According to the above purpose of the creation, a motor rotor structure modification is proposed. Good, including a concentric sleeve, a drive shaft, and a plurality of steel ring pieces. The sleeve has an outer ring portion, an inner ring portion disposed on the inner ring side of the outer ring portion, and a plurality of frames connecting the inner and outer ring portions, wherein the outer ring portion further has at least one outer key groove. The drive shaft is disposed on the inner ring side of the inner ring portion. Each of the steel ring segments is sleeved on the outer ring side of the outer ring portion, and the matching outer key groove has at least one inner key. By the composition of the above components, the stability of the assembly and actuation of the components is ensured.

10‧‧‧ bushings

12‧‧‧Outer Rings

122‧‧‧foreign keyway

142‧‧‧Internal keyway

14‧‧‧ Inner Ring Department

16‧‧‧ body

18‧‧‧ wing

20‧‧‧ drive shaft

30‧‧‧矽Steel ring

32‧‧‧ internal key

90‧‧‧Rotor

91‧‧‧Rotor core

912‧‧‧矽Steel ring

914‧‧‧core shaft hole

916‧‧‧ iron core trough

918‧‧‧core keyway

92‧‧‧ shaft

922‧‧‧Rotary keyway

93‧‧‧ keys

Fig. 1 is a perspective view showing an embodiment of a rotor of the present invention.

Fig. 2 is an exploded perspective view of the embodiment shown in Fig. 1.

Figure 3 is a partial schematic view of the embodiment shown in Figure 2.

Figure 4 is a schematic view of an embodiment of a conventional motor rotor.

Hereinafter, the modified embodiment of the rotor structure of the present invention will be further described with reference to the related drawings. For the purpose of understanding the present embodiment, the same components are denoted by the same reference numerals.

Referring to Figures 1 to 3, the motor rotor structure of the present invention is improved, which includes a concentric sleeve 10, a transmission shaft 20, and a plurality of steel ring 30 (commonly known as a rotor core), wherein:

The sleeve 10 has an outer ring portion 12, an inner ring portion 14, a plurality of webs 16, and a fin 18. The outer ring portion 12 has a slightly hollow tubular body, and the outer ring surface has at least one outer key groove 122 which is disposed along the extending direction of the outer ring portion 12. The inner ring portion 14 has a slightly hollow tubular body and is concentrically disposed on the inner ring side of the outer ring portion 12, and has an inner ring surface having at least one inner key. The groove 142 is disposed along the extending direction of the inner ring portion 14. Each of the aforementioned webs 16 is connected to the inner ring portion 14 and the outer ring portion 12, respectively. The fins 18 are outwardly extending and disposed on the outer annular surface of the outer ring portion 12 and adjacent to one end of the cross section.

The drive shaft 20 is disposed on the inner ring side of the inner ring portion 14 and has at least one outer key portion. The outer key portion is formed on the outer peripheral surface of the propeller shaft 20 and matches the inner key groove 142 of the inner ring portion 14. In practice, the outer key portion is selected from a combination of a keyway 22 and a key 24, or integrally formed with a key (not shown) that matches the inner keyway 142.

Each of the above-mentioned steel ring pieces 30 is sleeved on the outer ring side of the outer ring portion 12 and has at least one inner key 32. The inner key 32 is formed on the inner surface of the inner ring piece 30 and matches the key groove 122 of the outer ring portion 12. In the implementation, the outer ring portion 12 is tightly engaged with the respective steel ring pieces 30, and can form a stop for each of the steel ring pieces 30 with the flaps 18, and the other end of the air piece 18 can be selectively sleeved with one end cover (Fig. Not shown, traditional skills).

Therefore, the above is a description of a motor rotor structure improvement component and an assembly method according to a preferred embodiment of the present invention. The actuation characteristics of the embodiment of the present invention are described below.

Through the sleeve 10, the sleeves of the steel ring 30 and the transmission shaft 20 are respectively provided to ensure that the respective steel ring pieces 30 can be properly fixed on the sleeve 10 and penetrate the conductive windings of the steel ring 30 (in the figure) After the electromagnetic torque is formed, the sleeve 10 and its transmission shaft 20 can be stably linked to avoid the micro-deformation amount of the steel ring 30 and affect the stability of the overall operation of the motor.

The above description is only for the preferred embodiment of the present invention, and is intended to clarify the features of the present invention, and is not intended to limit the scope of the present embodiment, and the average variation made by those skilled in the art according to the present creation. Changes that are well known to those skilled in the art, and still fall within the scope of this creation.

Claims (3)

A motor rotor structure improvement comprising: a bushing having an outer ring portion, an inner ring portion, and a plurality of webs; the inner and outer ring portions having a slightly hollow tubular body contour and the inner ring portion concentric Disposed on the inner ring side of the outer ring portion, and the outer ring portion has at least one outer key groove along the extending direction of the outer ring portion; each of the frame systems respectively connects the inner ring portion and the outer ring portion; The shaft extends through the inner ring side of the inner ring portion; and a plurality of steel ring pieces are sleeved on the outer ring side of the outer ring portion and have at least one inner key for matching the outer key groove. The motor rotor structure according to claim 1, wherein the sleeve further comprises a fin extending outwardly from the outer ring portion and adjacent to the end section. The motor rotor structure according to claim 2, wherein the transmission shaft further comprises at least one keyway and a key, and the inner ring portion further comprises a keyway matched with the keyway and the key.