CN216981748U

CN216981748U - Permanent magnet motor rotor embedded and pasted magnetic steel assembling tool

Info

Publication number: CN216981748U
Application number: CN202122386707.9U
Authority: CN
Inventors: 区健民
Original assignee: SHANGHAI SHANGDIAN ELEC MACHINERY CORP
Current assignee: SHANGHAI SHANGDIAN ELEC MACHINERY CORP
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-07-15
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to an assembly tool for embedding and adhering magnetic steel in a permanent magnet motor rotor, wherein the rotor comprises a rotor shaft and a rotor iron core, a magnetic steel groove for installing the magnetic steel is formed in the rotor iron core, the assembly tool comprises a positioning disc, a guide block, a push head and a pushing screw rod, a first screw hole for penetrating through the pushing screw rod is formed in the positioning disc, the guide block is connected with the rotor iron core, an inner hole is formed in the guide block, the push head is arranged at the end part of the pushing screw rod, the positioning disc is concentrically connected with the rotor when the magnetic steel is assembled, the first screw hole, the inner hole and the magnetic steel groove are positioned on the same central axis, a channel for enabling the pushing screw rod to be in a linear translation state is formed, and the magnetic steel is pushed and pressed into the magnetic steel groove through the push head at the end part of the pushing screw rod. Compared with the prior art, the utility model has the advantages of simple structure, low production cost, convenient processing, high working efficiency and the like.

Description

Permanent magnet motor rotor embedded and pasted magnetic steel assembling tool

Technical Field

The utility model relates to a permanent magnet motor assembly tool, in particular to a permanent magnet motor rotor embedded magnetic steel assembly tool.

Background

The permanent magnet motor adopts the permanent magnet to generate the magnetic field of the motor, does not need a magnet exciting coil or exciting current, has high efficiency and simple structure, is a good energy-saving motor, and can be widely applied along with the advent of high-performance permanent magnet materials and the rapidness of control technology. With the continuous improvement of the performance of permanent magnet materials and the development of motor technology, permanent magnet motors are widely applied in various fields of national economy. The coming of low-carbon economy brings a growth opportunity for the permanent magnet motor. Permanent magnet motors are another focus of industry development in terms of alternative energy. With the adjustment of the structure, the permanent magnet motor used in the field of energy conservation and environmental protection will be greatly increased.

The permanent magnet motor can be mainly divided into a machine shell, a stator, a rotor and a rotating shaft. In the aspect of rotor manufacturing, high-performance iron-boron magnetic steel is embedded and attached in the permanent magnet motor rotor, and due to the fact that magnetic steel is strong in magnetism and homopolar magnetic steel repels each other, the magnetic steel is not easy to install manually, can bounce when being close to the magnetic steel, is easy to cause personal injury, is complex to install and is low in working efficiency.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides the assembling tool and the assembling method for the embedded magnetic steel of the permanent magnet motor rotor, which have the advantages of simple structure, convenience in installation and capability of improving the working efficiency, so that the consistency of products is ensured, and the complex factors of installation are overcome.

The purpose of the utility model can be realized by the following technical scheme:

an assembly tool for embedding and pasting magnetic steel in a permanent magnet motor rotor, wherein the rotor comprises a rotor shaft and a rotor iron core, a magnetic steel groove for installing the magnetic steel is formed in the rotor iron core, the assembly tool comprises a positioning disc, a guide block, a push head and a pushing screw rod, a first screw hole for penetrating through the pushing screw rod is formed in the positioning disc, the guide block is connected with the rotor iron core, an inner hole is formed in the guide block, the push head is installed at the end part of the pushing screw rod,

when the magnetic steel is assembled, the positioning disc is concentrically connected with the rotor, the first screw hole, the inner hole and the magnetic steel groove are positioned on the same central axis, a channel enabling the propelling screw to be in a linear translation state is formed, and the magnetic steel is pushed and pressed into the magnetic steel groove through a pushing head at the end part of the propelling screw.

Furthermore, a concentric hole for sleeving the rotor shaft is formed in the positioning disc.

Furthermore, the positioning disc is of an integrated circular structure.

Furthermore, the positioning disc is provided with a positioning hole connected with the rotor, and the positioning disc and the rotor are fixed through a positioning shaft.

Further, the guide block is made of a non-magnetic material.

Furthermore, the contact part of the push head and the magnetic steel is made of non-magnetic conductive materials.

Furthermore, a second screw hole connected with the rotor core is formed in the guide block.

Further, the pushing head comprises a movable joint, a screw, a pushing head frame and a nylon block which are sequentially connected, a third screw hole connected with the pushing screw rod is formed in one end of the movable joint, a movable joint groove is formed in the side face of the other end of the movable joint, and the movable connection of the movable joint and the pushing head frame is achieved through the cooperation of the movable joint groove and the screw.

Furthermore, the push head frame is convex, and is provided with a slot connected with the movable joint, a fourth screw hole used for penetrating through the screw and a connecting hole used for being connected with the nylon block.

Furthermore, the appearance of the pushing head is matched with the magnetic steel groove.

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

1. the tool is simple in structure, low in material and processing cost, relatively convenient to install and capable of effectively improving the working efficiency.

2. The tool can complete the steps which need to be completed by multiple persons in one time, ensure the consistency of products, overcome the repulsion of homopolar magnetic steels and avoid the damage and personal injury caused by the attraction of the magnetic steels in the assembling process.

3. According to the utility model, the rotor magnetic steel is embedded, the groove type is a straight guide groove, the push head is pushed, the push head and the rotor groove which is provided with the magnetic steel are parallel and consistent, the push head and the rotor groove can be replaced according to different groove types, and the interchangeability is good.

4. The push head is adopted to push the magnetic steel, and the push head maintains a linear translation state because the push process is the rotation and progressive of the screw rod, so that the magnetic steel is pushed in parallel and is not subjected to rotation and impact, the efficiency of the installation process is improved, and the rejection rate of the magnetic steel is reduced.

Drawings

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

FIG. 2 is a schematic structural view of the positioning plate of the present invention, wherein (2a) is a front view and (2b) is a side view;

FIG. 3 is a schematic structural view of a guide block of the present invention, wherein (3a) is a front view and (3b) is a side view;

FIG. 4 is a schematic structural view of the pushing head of the present invention, wherein (4a) is a side view and (4b) is another side view;

FIG. 5 is a schematic structural view of the joint of the present invention;

fig. 6 is a schematic structural diagram of the pushing head frame of the present invention, wherein (6a) is a front view and (6b) is a top view;

in the figure, 11, a positioning disc, 12, a guide block, 13, a push head, 14, a push screw, 20, a rotor, 21, a rotor shaft, 22, a rotor iron core, 23, magnetic steel, 24, a positioning shaft, 111, a positioning hole, 112, a first screw hole, 121, a second screw hole, 122, an inner hole, 131, a movable joint, 132, a screw, 133, a push head frame, 134, a nylon block, 311, a movable joint groove, 312, a third screw hole, 331, a slot, 332, a fourth screw hole, 333 and a connecting hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1, the rotor 20 includes a rotor shaft 21 and a rotor core 22, a magnetic steel slot for mounting a magnetic steel 23 is formed in the rotor core 22, and the magnetic steel is usually assembled manually, which causes more problems. The embodiment provides a permanent magnet motor rotor embedded and attached magnetic steel assembling tool to realize quick and safe assembly of the magnetic steel.

Referring to fig. 1 to 6, the assembly fixture of this embodiment includes a positioning plate 11, a guide block 12, a push head 13 and a push screw 14, the positioning plate 11 is provided with a first screw hole 112 for passing through the push screw 14, the guide block 12 is connected to a rotor core 22, and is provided with an inner hole 122, the push head 13 is mounted at an end of the push screw 14, when assembling the magnetic steel 23, the positioning plate 11 is concentrically connected to the rotor 20, the first screw hole 112, the inner hole 122 and the magnetic steel slot are located on a same central axis, so as to form a channel for enabling the push screw 14 to be in a linear translation state, and the magnetic steel 23 is pushed and pressed into the magnetic steel slot by the push head 13 at the end of the push screw 14.

As shown in fig. 2, the positioning plate 11 is provided with a concentric hole for being sleeved on the rotor shaft 21. The positioning disk 11 is further provided with a positioning hole 111 for realizing connection with the rotor 20, the end face of the rotor core 22 is provided with a positioning screw hole, and the positioning shaft 24 is inserted into the positioning hole 111 and the positioning screw hole to fix the positioning disk 11 and the rotor 20.

In this embodiment, the positioning plate 11 is an integrated circular structure with a flange, and the first screw holes 112 are uniformly distributed on the flange. The positioning plate 11 is used to realize the positioning of the position of the pushing screw 14.

The guide block 12 is made of non-magnetic conductive material and is not attracted by magnetic steel, and in the embodiment, the guide block 12 is made of aluminum alloy. As shown in fig. 3, the guide block 12 is a convex type, and is provided with a second screw hole 121 connected with the rotor core 22, and an inner hole 122 is consistent with the magnetic steel slot of the rotor and serves as a non-magnetic-conductive extension of the magnetic steel guide slot.

The contact part of the push head 13 and the magnetic steel is made of non-magnetic conductive material. As shown in fig. 4, the pushing head 13 includes a movable joint 131, a screw 132, a pushing head frame 133 and a nylon block 134 which are connected in sequence, the pushing head frame 13 and the nylon block 14 are integrally static, as shown in fig. 5, one end of the movable joint 131 is provided with a third screw hole 312 connected with the pushing screw 14, and the other end side surface is provided with a movable joint groove 311, the movable joint 131 and the pushing head frame 133 are movably connected through the cooperation of the movable joint groove 311 and the screw 132, and the movable joint 131 is a rotating body.

As shown in fig. 6, the pusher head 133 is a convex type, and has a slot 331 connected to the hinge 131, a fourth screw hole 332 for passing the screw 132, and a connection hole 333 for connecting to the nylon block 134.

The push head 13 has the shape matched with the magnetic steel groove and can be replaced according to different groove types.

The step of utilizing above-mentioned assembly fixture to carry out the embedded magnet steel assembly that pastes of permanent-magnet machine rotor includes:

(1) concentrically connecting a positioning disk 11 with a rotor 20, wherein a first screw hole 112 of the positioning disk 11 is parallel to and centered with the installation position of the magnetic steel 23;

(2) fixing the guide block 12 on the rotor core 22, wherein the inner hole 122 is consistent with the magnetic steel slot;

(3) pre-pushing a pushing screw 14 into the positioning disc 11, and laterally installing a pushing head 13 in the pushing direction;

(4) brushing glue on the preassembly part of the magnetic steel 23, transferring the preassembly part into a magnetic steel groove through the assistance of the guide block 12, screwing in the pushing screw 14, pushing in the magnetic steel 23, retreating the pushing screw 14 after the glue is solidified, performing a second layer, and so on;

(5) and after the magnetic steel 23 is installed in place, after the glue is fully cured, disassembling the assembly tool, and filling the epoxy glue and the pressing plate.

The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides an inlay magnet steel assembly fixture in permanent-magnet machine rotor, rotor (20) include rotor shaft (21) and rotor core (22), set up the magnet steel groove that is used for installing magnet steel (23) in rotor core (22), its characterized in that, assembly fixture includes positioning disk (11), guide block (12), pusher (13) and propulsion screw (14), be equipped with on positioning disk (11) and be used for passing first screw (112) of propulsion screw (14), guide block (12) are connected with rotor core (22), have seted up hole (122) on it, pusher (13) are installed in propulsion screw (14) tip,

when the magnetic steel (23) is assembled, the positioning disc (11) is concentrically connected with the rotor (20), the first screw hole (112), the inner hole (122) and the magnetic steel groove are positioned on the same central axis, a channel enabling the pushing screw (14) to be in a linear translation state is formed, and the magnetic steel (23) is pushed and pressed into the magnetic steel groove through a pushing head (13) at the end part of the pushing screw (14).

2. The assembly tool for embedding magnetic steel in a rotor of a permanent magnet motor according to claim 1, wherein a concentric hole for sleeving the rotor shaft (21) is formed in the positioning disc (11).

3. The permanent magnet motor rotor embedded magnetic steel assembling tool according to claim 1, wherein the positioning disc (11) is of an integrated circular structure.

4. The assembly tool for embedding magnetic steel in a permanent magnet motor rotor according to claim 1, wherein a positioning hole (111) for connecting the positioning disc (11) with the rotor (20) is formed in the positioning disc (11), and the positioning disc (11) and the rotor (20) are fixed through a positioning shaft (24).

5. The permanent magnet motor rotor embedded magnetic steel assembling tool according to claim 1, wherein the guide blocks (12) are made of non-magnetic materials.

6. The assembly tool for embedding magnetic steel in a permanent magnet motor rotor according to claim 1, wherein a non-magnetic conductive material is used at a contact part of the push head (13) and the magnetic steel.

7. The permanent magnet motor rotor embedded magnetic steel assembling tool according to claim 1, wherein a second screw hole (121) connected with a rotor iron core (22) is formed in the guide block (12).

8. The assembly fixture for embedding magnetic steel in a permanent magnet motor rotor according to claim 1, wherein the push head (13) comprises a movable joint (131), a screw (132), a push head frame (133) and a nylon block (134) which are sequentially connected, a third screw hole (312) connected with the push screw rod (14) is formed in one end of the movable joint (131), a movable joint groove (311) is formed in the side face of the other end of the movable joint (131), and the movable joint (131) and the push head frame (133) are movably connected through the cooperation of the movable joint groove (311) and the screw (132).

9. The assembly fixture for embedding magnetic steel in a rotor of a permanent magnet motor according to claim 8, wherein the pushing head frame (133) is of a convex type and is provided with an insertion slot (331) connected with the movable joint (131), a fourth screw hole (332) for passing through the screw (132) and a connecting hole (333) for connecting with the nylon block (134).

10. The permanent magnet motor rotor embedded magnetic steel assembling tool according to claim 1, wherein the push head (13) is matched with a magnetic steel groove in shape.