CN219999125U

CN219999125U - Rotor structure

Info

Publication number: CN219999125U
Application number: CN202321022095.8U
Authority: CN
Inventors: 许新江; 许峰
Original assignee: Ningbo Northtown Motor Co ltd
Current assignee: Ningbo Northtown Motor Co ltd
Priority date: 2023-04-26
Filing date: 2023-04-26
Publication date: 2023-11-10
Anticipated expiration: 2033-04-26

Abstract

The utility model discloses a rotor structure, which belongs to the field of motor equipment and comprises a rotating shaft, an iron core, magnetic steel and a butt fixing piece, wherein the iron core is sleeved on the rotating shaft and is provided with a through mounting groove along the axial direction; the magnetic steel is inserted into the mounting groove; the butt mounting rides on the fan-shaped iron core structure between two adjacent mounting grooves, be provided with the butt arch on the inner wall of butt mounting, the butt arch is in butt with the inside wall of mounting groove, the bottom of butt mounting is provided with the backup pad. The abutting fixing piece is arranged on the fan-shaped iron core structure of the iron core in a riding mode, the purpose of fixing the abutting fixing piece is achieved through the auxiliary plate at the bottom, the magnetic steel inserted into the mounting groove is reliably fixed on the rotor iron core by means of abutting of the abutting protrusion on the abutting fixing piece and the inner side wall of the mounting groove, the mounting structure ensures the mounting accuracy of the magnetic steel, improves the mounting efficiency of the magnetic steel, and is convenient to maintain.

Description

Rotor structure

Technical Field

The utility model relates to the field of motor equipment, in particular to a rotor structure.

Background

When the rotor of the motor fixes the magnetic steel on the rotor core through the adhesive, the smearing of the adhesive is uncontrollable, the curing time of the adhesive is uncontrollable, and impurities are easy to adhere, so that the qualification rate of mass production is affected. Some motors on the market are fixed in a connecting mode, for example, protrusions are added on the rotor core, magnetic steel is fixed by interference fit, so that the magnetic steel and the core are more stable, the protruding mode is added on the rotor core, the motor is limited by high precision requirements of the rotor core, the processing difficulty of the rotor core is increased, and the rejection rate of products is increased.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the rotor structure, and the magnetic steel is accurately and reliably fixed on the rotor core by abutting the fixing piece, so that the installation accuracy and the installation efficiency of the magnetic steel are improved. In order to solve the technical problems, the utility model is solved by the following technical scheme.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the rotor structure comprises a rotating shaft, an iron core, magnetic steel and a butt fixing piece, wherein the iron core is sleeved on the rotating shaft, through mounting grooves are axially formed in the iron core, and the mounting grooves are uniformly distributed in the circumferential direction of the iron core; the magnetic steel is inserted into the mounting grooves and corresponds to the mounting grooves one by one; the fan-shaped iron core structure is ridden to the butt mounting between two adjacent mounting grooves, be provided with the butt arch on the inner wall of butt mounting, the butt arch is in butt with the inside wall of mounting groove, and the both sides of fan-shaped iron core structure and the two butt protruding contacts of butt mounting to fixed butt mounting, the bottom of butt mounting is provided with the backup pad, backup pad and the bottom butt of magnet steel.

Preferably, the butt mounting is the type component of falling U, and the butt mounting of type component of falling U rides and establishes on fan-shaped iron core structure, the interlude of butt mounting is bent to one side of mounting groove inner wall and is formed the butt arch, and the butt arch becomes the arc, and the butt is protruding to be the plate body from top to bottom for hug closely the magnet steel.

Preferably, the fan-shaped iron core structure is provided with clamping grooves for being installed by the abutting fixing pieces, the clamping grooves are symmetrically arranged relative to the fan-shaped iron core, and the clamping grooves are matched with the abutting fixing pieces.

Preferably, the thickness of the clamping groove is not smaller than that of the abutting fixing piece, and when the magnetic steel is installed, two side plate bodies of the abutting fixing piece are extruded into the clamping groove.

Preferably, the protruding radian of butt is greater than the thickness of draw-in groove, and when magnet steel extrusion butt mounting curb plate body, arc butt arch takes place to deform, and when the curb plate lateral surface of butt mounting and the side parallel and level of fan-shaped iron core structure, the butt arch is not taking place to deform, and the butt mounting is fixed magnet steel this moment.

Preferably, the top corner of the abutting fixing piece is arc-shaped, so that the magnetic steel is conveniently inserted into the mounting groove.

Preferably, the two support plates on the abutting fixing piece extend outwards, the support plates are arc-shaped, and the arc-shaped support plates support the bottom of the magnetic steel, so that the magnetic steel is more stable.

Preferably, adjacent support plates of adjacent two butt mountings are symmetrical about the mounting groove, and the adjacent two support plates are supported to it from the magnet steel bottom, and the magnet steel bottom is favorable to the magnet steel to the backup pad of propping stable, and there are two backup pads to support in a magnet steel bottom, and these two backup pads are located on the different butt mountings.

Preferably, a transverse plate is arranged between the supporting plate and the abutting fixing piece, the upper surface of the transverse plate is in contact with the bottom of the magnetic steel, the contact area of the transverse plate and the magnetic steel is larger, the magnetic steel is more stable, and the arc-shaped supporting plate becomes a powerful supporting point of the transverse plate at the moment, so that the transverse plate is more stable, and the magnetic steel is further stable.

Preferably, an auxiliary plate is arranged at the bottom end of the abutting fixing piece, the auxiliary plate is fixed with the supporting plate, the auxiliary plate enables the abutting fixing piece to be fixed in the axial direction, and the abutting fixing piece is prevented from moving in the axial direction.

Compared with the prior art, the utility model has the following beneficial effects: according to the rotor structure, the abutting fixing piece is arranged on the fan-shaped iron core structure of the iron core in a riding mode, the purpose of fixing the abutting fixing piece is achieved through the auxiliary plate at the bottom, the magnetic steel inserted into the mounting groove is reliably fixed on the rotor iron core by means of abutting of the abutting protrusion on the abutting fixing piece and the inner side wall of the mounting groove, the mounting structure ensures the mounting accuracy of the magnetic steel, improves the mounting efficiency of the magnetic steel, and is convenient to maintain.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of the overall structure of the rotor structure of the present utility model.

Fig. 2 is a schematic view of the core and sector structure of the rotor structure of the present utility model.

Fig. 3 is a schematic view showing the separation of the fan-shaped structure and the abutment fixture of the rotor structure of the present utility model.

Fig. 4 is a schematic view of an abutting fixture of a rotor structure according to the present utility model.

Description of the figure: 1. a rotating shaft; 2. an iron core; 21. a mounting groove; 22. a fan-shaped structure; 221. a clamping groove; 3. magnetic steel; 4. abutting against the fixing piece; 41. the abutting bulge; 5. a support plate; 6. a cross plate; 61. a notch; 7. and an auxiliary plate.

Detailed Description

The present utility model is described in further detail below with reference to the accompanying drawings.

The following description is presented to enable one of ordinary skill in the art to practice the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. indicate orientations or positions based on the orientation or positional relationship shown in the drawings, which are merely for convenience in describing the present simplified description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus the above terms are not to be construed as limiting the present utility model.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

Referring to fig. 1-4, a rotor structure includes a rotating shaft 1, an iron core 2, magnetic steel 3 and an abutting fixing member 4, wherein the iron core 2 is sleeved on the rotating shaft 1, and is provided with through mounting grooves 21 along the axial direction, and the mounting grooves 21 are uniformly distributed in the circumferential direction of the iron core 2; the magnetic steel 3 is inserted into the mounting groove 21, and the magnetic steel 3 corresponds to the mounting groove 21 one by one; the abutting fixing piece 4 rides on the fan-shaped structure 22 between two adjacent mounting grooves 21, the abutting protrusion 41 is arranged on the inner wall of the abutting fixing piece 4, the abutting protrusion 41 abuts against the inner side wall of the mounting groove 21, two sides of the fan-shaped structure 22 are in contact with the two abutting protrusions 41 of the abutting fixing piece 4, the abutting fixing piece 4 is fixed, the bottom end of the abutting fixing piece 4 is provided with the supporting plate 5, and the supporting plate 5 abuts against the bottom of the magnetic steel 3.

The abutting fixing piece 4 is an inverted U-shaped component, the abutting fixing piece 4 of the inverted U-shaped component is arranged on the fan-shaped structure 22 in a riding mode, the middle section of the abutting fixing piece 4 is bent to one side of the inner wall of the mounting groove 21 to form an abutting protrusion 41, the abutting protrusion 41 is arc-shaped, and the abutting protrusion 41 is a plate body up and down and is used for being tightly attached to the magnetic steel 3.

The fan-shaped structure 22 is provided with a clamping groove 221 for being installed by abutting the fixing piece 4, the clamping groove 221 is symmetrically arranged relative to the fan-shaped structure 22, and the clamping groove 221 is matched with the abutting fixing piece 4.

The thickness of the clamping groove 221 is not smaller than that of the abutting fixing piece 4, and when the magnetic steel 3 is installed, two side plate bodies of the abutting fixing piece 4 are extruded into the clamping groove 221.

The radian of the abutting bulge 41 is larger than the thickness of the clamping groove 221, when the magnetic steel 3 extrudes the side plate body of the abutting fixing piece 4, the arc-shaped abutting bulge 41 deforms, when the outer side surface of the side plate of the abutting fixing piece 4 is flush with the side surface of the fan-shaped structure 22, the abutting bulge 41 does not deform, and at the moment, the magnetic steel 3 is abutted tightly by the abutting fixing piece 4. The more the number of the abutment projections 41, the more stable the magnetic steel 3, in this case, one abutment projection 41 is taken as an example.

The top corner of the abutting fixing piece 4 is arc-shaped, so that the magnetic steel 3 can be conveniently inserted into the mounting groove 21.

Two backup pads 5 on the butt mounting 4 extend to the outside, and backup pad 5 props to be the arc, and arc backup pad 5 is to magnet steel 3 bottom sprag for magnet steel 3 is more stable.

Adjacent support plates 5 of adjacent two abutting fixing pieces 4 are symmetrical about the mounting groove 21, the adjacent two support plates 5 support the magnetic steel 3 from the bottom of the magnetic steel, the support plates 5 supported by the bottom of the magnetic steel 3 are beneficial to the stability of the magnetic steel 3, two support plates 5 are supported by the bottom of one magnetic steel 3, and the two support plates 5 are positioned on different abutting fixing pieces 4.

Be provided with diaphragm 6 between backup pad 5 and the butt mounting 4, the upper surface and the magnet steel 3 bottom contact of diaphragm 6, and diaphragm 6 and magnet steel 3 area of contact are more, and magnet steel 3 is more stable, and arc backup pad 5 becomes the powerful supporting point of diaphragm 6 this moment for diaphragm 6 is more stable, and then makes magnet steel 3 stable.

The bottom end of the abutment fixture 4 is provided with an auxiliary plate 7, the auxiliary plate 7 being fixed with the support plate 5, the auxiliary plate 7 making the abutment fixture 4 axially fixed, preventing the abutment fixture 4 from moving axially. The transverse plate 6 is provided with a notch 61, and the notch 61 is convenient for pinching by hand to enable the abutting fixing piece 4 to be outwards opened, so that the abutting fixing piece 4 is installed.

Firstly, the abutting fixing piece 4 is installed, after the magnetic steel 3 is inserted, the magnetic steel 3 is installed, the auxiliary plate 7 abuts against the bottom of the fan-shaped structure 22, so that a powerful supporting point is formed on the supporting plate 5 and the transverse plate 6, and the transverse plate 6 can stably support the magnetic steel 3.

During installation, the support plate 5 below the notch 61 is pinched by hand to enable the side plate body of the abutting fixing piece 4 to be outwards opened, when the abutting fixing piece 4 is ridden on the fan-shaped structure 22, when the top of the abutting fixing piece 4 is contacted with the fan-shaped structure 22, the pinched support plate 5 is loosened, the auxiliary plate 7 clamps the bottom surface of the fan-shaped structure 22, all the abutting fixing pieces 4 are installed in sequence, then the magnetic steel 3 is inserted into the installation groove 21, the side surface of the magnetic steel 3 presses the side plate of the abutting fixing piece 4 in the insertion process, the abutting bulge 41 is deformed, finally when the outer side surface of the side plate of the abutting fixing piece 4 is flush with the side surface of the fan-shaped structure 22, the abutting bulge 41 is not deformed, the magnetic steel 3 is continuously inserted until the bottom of the magnetic steel 3 is stopped when the bottom of the magnetic steel 3 is contacted with the transverse plate 6, and at the moment, the two adjacent side plates of the abutting fixing piece 4 clamp the magnetic steel 3 tightly to fix the magnetic steel 3.

It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The objects of the present utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from the principles described.

Claims

1. A rotor structure, characterized in that: comprising the following steps:

a rotating shaft (1);

the iron core (2) is sleeved on the rotating shaft (1), and a through mounting groove (21) is formed along the axial direction;

the magnetic steel (3) is inserted into the mounting groove (21);

the butt mounting (4) rides on fan-shaped structure (22) between two adjacent mounting groove (21), be provided with butt arch (41) on the inner wall of butt mounting (4), the inside wall butt of butt arch (41) and mounting groove (21), the bottom of butt mounting (4) is provided with backup pad (5), the bottom butt of backup pad (5) and magnet steel (3).

2. A rotor structure according to claim 1, wherein: the abutting fixing piece (4) is an inverted U-shaped component, and the middle section of the abutting fixing piece (4) is bent to one side of the inner wall of the mounting groove (21) to form the abutting protrusion (41).

3. A rotor structure according to claim 2, characterized in that: the fan-shaped structure (22) is provided with a clamping groove (221) for being installed by the abutting fixing piece (4), and the clamping groove (221) is matched with the abutting fixing piece (4).

4. A rotor structure according to claim 3, wherein: the thickness of the clamping groove (221) is not smaller than that of the abutting fixing piece (4).

5. A rotor structure according to claim 4, wherein: the radian of the abutting bulge (41) is larger than the thickness of the clamping groove (221).

6. A rotor structure according to claim 5, wherein: the top corner of the abutting fixing piece (4) is arc-shaped.

7. A rotor structure according to claim 6, wherein: two support plates (5) on the abutting fixing piece (4) extend outwards, and the support plates (5) are in an arc shape.

8. A rotor structure according to claim 7, wherein: adjacent support plates (5) of adjacent two abutting fixing pieces (4) are symmetrical about the mounting groove (21), and the adjacent two support plates (5) support the magnetic steel (3) from the bottom thereof.

9. A rotor structure according to claim 8, wherein: a transverse plate (6) is arranged between the supporting plate (5) and the abutting fixing piece (4), and the upper surface of the transverse plate (6) is in contact with the bottom of the magnetic steel (3).

10. A rotor structure according to claim 8, wherein: an auxiliary plate (7) is arranged at the bottom end of the abutting fixing piece (4), and the auxiliary plate (7) is fixed with the supporting plate (5).