Tool for pasting magnetic steel of 2MW high-speed motor rotor

Abstract

A tool for pasting magnetic steel of a 2MW high-speed motor rotor comprises a four-claw positioning base and a positioning sleeve, and the four-claw positioning base is installed on a rotor iron core; the positioning sleeve is arranged at the tail end of the four-claw positioning base and used for limiting the positioning claws of the four-claw positioning base, and it is ensured that the gap between the two positioning claws of the four-claw positioning base is kept uniform. Wherein the end face of the rotor core is in contact positioning with the inner surface of a disc of the four-claw positioning base, the cylindrical surface of the rotor core is in contact positioning with the inner cylindrical surface of a positioning claw of the four-claw positioning base, and magnetic steel is adhered to the middle of two positioning claw areas of the four-claw positioning base by taking the side surfaces of the two positioning claws as references. According to the utility model, the magnetic steel can be pasted to the middle in the two positioning claw areas by taking the side surfaces of the two positioning claws as references, so that the situation that the gap of the last row of magnetic steel is too large or too small due to the dimensional tolerance of the magnetic steel is reduced, and meanwhile, a row of magnetic steel is just pasted at the spare position after the tool is dismounted.

Description

Technical Field

[0001] The utility model relates to the technical field of motor manufacturing tooling, in particular to a tooling for pasting magnetic steel on a rotor of a 2MW high-speed motor. Background Art

[0002] Currently, in the motor industry, when attaching magnets to the outer wall of the rotor core, the commonly used magnet assembly tooling uses the first slot in the first row as the reference, then attaches the magnets sequentially, right next to the first slot. Due to length tolerances in the magnets, the gap between the last magnet piece is often too large or too small, requiring grinding or even removal of the magnet and reattachment. This process results in a high magnet scrap rate, time-consuming assembly, and low efficiency.

[0003] To this end, we propose a tooling for bonding rotor magnets of 2MW high-speed motors. Utility Model Content

[0004] In response to the shortcomings of the above-mentioned existing production technology, the applicant provides a tool for pasting 2MW high-speed motor rotor magnets, so that when pasting the magnets, they can be pasted toward the middle in the two positioning claw areas with the sides of the two positioning claws as the reference, reducing the gap between the last row of magnets that is too large or too small due to the dimensional tolerance of the magnets, and at the same time ensuring that the vacant space after removing the tool is just enough to paste one row of magnets.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] A tool for bonding magnetic steel on a 2MW high-speed motor rotor, comprising:

[0007] Four-claw positioning base, installed on the rotor core;

[0008] The positioning sleeve is provided at the end of the four-claw positioning base and is used to limit the positioning claws of the four-claw positioning base to ensure that the gap between the two positioning claws of the four-claw positioning base remains uniform;

[0009] Among them, the end face of the rotor core contacts and positions with the inner surface of the disk of the four-claw positioning base, and the cylindrical surface of the rotor core contacts and positions with the inner cylindrical surface of the positioning claws of the four-claw positioning base. In the two positioning claw areas of the four-claw positioning base, the magnets are pasted toward the middle with the side surfaces of the two positioning claws as the reference.

[0010] It is further characterized by:

[0011] The four-claw positioning base comprises a base and four positioning claws.

[0012] The base disc surface of the four-claw positioning base is provided with a through hole, and the bolt passes through the through hole to be connected with the rotor core.

[0013] A threaded hole is provided in the center of the base disc surface of the four-claw positioning base. When the four-claw positioning base is disassembled, a screw is screwed into the threaded hole to facilitate the pulling and disassembly of the four-claw positioning base.

[0014] The positioning claws of the four-claw positioning base have an arc angle, and the arc angle of the positioning claws is the same as the arc angle of the magnetic steel.

[0015] The inner circular surface of the positioning claw of the four-claw positioning base is chamfered to prevent excess glue from sticking to the four-claw positioning base when the magnetic steel is pasted.

[0016] The beneficial effects of the utility model are as follows:

[0017] The utility model has a compact and reasonable structure and is easy to operate. The four-claw positioning base is installed on the rotor core, and a positioning sleeve is provided at the end of the four-claw positioning base to ensure that the gap between the two positioning claws of the four-claw positioning base remains uniform. The positioning claws of the four-claw positioning base have an arc angle, and the arc angle of the positioning claws is the same as the arc angle of the magnetic steel. When the magnetic steel is pasted, it can be pasted toward the middle in the area of the two positioning claws with the side surfaces of the two positioning claws as the reference, reducing the gap of the last row of magnetic steel that is too large or too small due to the dimensional tolerance of the magnetic steel, and at the same time ensuring that the vacant position after removing the tooling is just enough to paste one row of magnetic steel.

[0018] At the same time, the utility model also has the following advantages:

[0019] (1) The base disc surface of the four-claw positioning base is provided with a through hole, which is connected to the rotor core by bolts, thereby positioning the four-claw positioning base and the rotor core circumferentially to ensure that the tooling does not shift during the magnetic steel pasting process.

[0020] (2) There is a threaded hole in the center of the disc surface of the base. When disassembling the four-claw positioning base, a screw is screwed into the threaded hole to facilitate the pulling and disassembly of the four-claw positioning base.

[0021] (3) The positioning claws of the four-claw positioning base have an arc angle, and the arc angle of the positioning claws is the same as the arc angle of the magnet. When pasting the magnet, it can be pasted toward the middle in the area of the two positioning claws with the sides of the two positioning claws as the reference, reducing the gap between the last row of magnets that is too large or too small due to the size tolerance of the magnet, and at the same time ensuring that the empty space after removing the tooling is just enough to paste one row of magnets. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural diagram of the present utility model.

[0023] Figure 2 for Figure 1 main view.

[0024] Figure 3 for Figure 2 Top view of .

[0025] Figure 4 It is a cross-sectional schematic diagram of the present utility model.

[0026] Figure 5 This is a schematic diagram of the four-claw positioning base of the utility model.

[0027] Figure 6 This is a schematic diagram of a positioning sleeve of the present utility model.

[0028] Including: 1. Four-claw positioning base; 2. Bolt; 3. Positioning sleeve; 4. Magnet; 5. Rotor core. DETAILED DESCRIPTION

[0029] The specific implementation of the present utility model will be described below with reference to the accompanying drawings.

[0030] like Figures 1-6 As shown, a tool for pasting magnetic steel on the rotor of a 2MW high-speed motor includes a four-claw positioning base 1, a bolt 2 and a positioning sleeve 3.

[0031] The four-claw positioning base 1 includes a base and four positioning claws, which are integrally formed with the base. The base's circular surface is provided with through holes, which are connected to the rotor core 5 via bolts 2. This provides circumferential positioning of the four-claw positioning base 1 and the rotor core 5, ensuring that the tooling does not shift during the attachment of the magnets 4. Four or more through holes can be provided. A threaded hole is provided in the center of the base's circular surface. When disassembling the four-claw positioning base 1, a screw is screwed into the threaded hole to facilitate pulling and removing the four-claw positioning base 1.

[0032] The four-claw positioning base 1 is mounted on the rotor core 5. The end face of the rotor core 5 contacts the inner surface of the disc of the four-claw positioning base 1 for positioning. The cylindrical surface of the rotor core 5 contacts the inner cylindrical surface of the positioning claw of the four-claw positioning base 1 for positioning. The four-claw positioning base 1 is connected to the rotor core 5 by bolts 2, which pass through the through holes of the four-claw positioning base 1. A positioning sleeve 3 is provided at one end of the positioning claw of the four-claw positioning base 1. The positioning sleeve 3 limits the positioning claw of the four-claw positioning base 1, ensuring that the gap between the two positioning claws of the four-claw positioning base 1 remains uniform.

[0033] The positioning claws of the four-claw positioning base 1 have an arc angle, and the arc angle of the positioning claws is the same as the arc angle of the magnet 4. When pasting the magnet 4, it can be pasted in the middle of the two positioning claw areas with the sides of the two positioning claws as the reference. This reduces the gap between the last row of magnets 4 due to the dimensional tolerance of the magnet 4, and ensures that the free space after removing the tooling is just enough to paste one row of magnets 4. One side of the magnet 4 is closely attached to the side of the positioning claw of the four-claw positioning base 1 along the axial direction.

[0034] During assembly, the four-claw positioning base 1 is positioned axially by contacting the inner surface of the base disc with the axial end face of the rotor core 5. During assembly, the four-claw positioning base 1 is positioned radially by contacting the inner surface of the positioning claws with the cylindrical surface of the rotor core 5. The inner surface of the positioning claws of the four-claw positioning base 1 is chamfered to prevent excess glue from sticking to the four-claw positioning base 1 when attaching the magnet 4.

[0035] During specific use, the four-claw positioning base 1 is installed on the rotor core 5, and a positioning sleeve 3 is set at the end of the four-claw positioning base 1 to ensure that the gap between the two positioning claws of the four-claw positioning base 1 remains uniform. The positioning claws of the four-claw positioning base 1 have an arc angle, and the arc angle of the positioning claws is the same as the arc angle of the magnet 4. When the magnet 4 is pasted, it can be pasted to the middle in the area of the two positioning claws with the sides of the two positioning claws as the reference, reducing the gap of the last row of magnets 4 that is too large or too small due to the dimensional tolerance of the magnet 4, and at the same time ensuring that the vacant space after removing the tooling is just enough to paste a row of magnets 4.

[0036] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the scope of protection of the utility model.

Claims

1. A tool for pasting magnetic steel on the rotor of a 2MW high-speed motor, characterized in that: include: A four-claw positioning base (1) is mounted on the rotor core (5); A positioning sleeve (3) is provided at the end of the four-claw positioning base (1) and is used to limit the positioning claws of the four-claw positioning base (1) to ensure that the gap between the two positioning claws of the four-claw positioning base (1) remains uniform; The end face of the rotor core (5) contacts and positions the inner surface of the disk of the four-claw positioning base (1), the cylindrical surface of the rotor core (5) contacts and positions the inner cylindrical surface of the positioning claws of the four-claw positioning base (1), and the magnetic steel (4) is pasted toward the middle of the two positioning claw areas of the four-claw positioning base (1) with the side surfaces of the two positioning claws as a reference.

2. The tooling for bonding 2MW high-speed motor rotor magnets according to claim 1, characterized in that: The four-claw positioning base (1) comprises a base and four positioning claws.

3. The tooling for bonding 2MW high-speed motor rotor magnets according to claim 2, characterized in that: The base disc surface of the four-claw positioning base (1) is provided with a through hole, and the bolt (2) passes through the through hole to be connected to the rotor core (5).

4. The tooling for bonding 2MW high-speed motor rotor magnets according to claim 3, characterized in that: A threaded hole is provided at the center of the base disc surface of the four-claw positioning base (1). When the four-claw positioning base (1) is disassembled, a screw is screwed into the threaded hole to facilitate the pulling and disassembly of the four-claw positioning base (1).

5. The tooling for bonding 2MW high-speed motor rotor magnets according to claim 1, characterized in that: The positioning claws of the four-claw positioning base (1) have an arc angle, and the arc angle of the positioning claws is the same as the arc angle of the magnetic steel (4).

6. The tooling for bonding 2MW high-speed motor rotor magnets according to claim 1, characterized in that: The inner circular surface of the positioning claws of the four-claw positioning base (1) is chamfered to prevent excess glue from sticking to the four-claw positioning base (1) when the magnetic steel (4) is pasted.

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