Surface-mounted magnetic steel assembly tool

Abstract

The utility model discloses a surface-mounted magnetic steel assembly tool which comprises an upper end positioning support, the bottom ends of the two sides of the upper end positioning support fix three layers of magnetic steel at the bottom through second bolts, and when the interaction force of the three layers of magnetic steel is within a manually controllable range, the magnetic steel tool is positioned through the position of the magnetic steel at the bottom layer and the position of an outer diameter step of a lower rotor pressing ring. At the moment, the magnetic steel at the bottom is wrapped by the two matched connection structure aluminum sleeves of the first annular tool, the two spliced aluminum sleeves are fixed by installing the second annular tool, and when each layer of magnetic steel is installed, each layer of magnetic steel is stacked to the seam allowance position of the next layer through the third annular tool in sequence. After the magnetic steel is assembled and on the premise that the structure of the rotor is not damaged, all tools can be simply disassembled and then can be turned into the next processing procedure, and the original size and structure of the rotor are not influenced; in the assembling process, the situation that the magnetic steel rolls over and is damaged due to the fact that the interaction force of the magnetic steel is too large is effectively prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of process assembly, in particular to a surface mounted magnetic steel assembly tool. Background Art

[0002] Halbach is a new type of permanent magnet arrangement. The permanent magnet motor with this structure has a high power density, can obtain a uniformly distributed sine wave through its own magnets, and has a good magnetic shielding effect, thereby reducing the thickness of the rotor magnetic yoke, which has a great advantage in high-speed operation;

[0003] However, the volume of a single magnet in this structure is small, and the interaction force between magnets is large. Traditional magnet assembly processes and tooling cannot stably fix the magnets on the surface of the rotor core, making magnet assembly extremely difficult.

[0004] Therefore, we proposed a surface-mounted magnetic steel assembly tooling to solve the above problems. Utility Model Content

[0005] The utility model aims at the problem that the conventional magnetic steel assembly process and tooling in the prior art cannot stably fix the magnetic steel on the surface of the rotor core and the magnetic steel assembly is extremely difficult, and proposes the following technical solutions:

[0006] The surface-mounted magnetic steel assembly tooling includes an upper positioning bracket, and the bottom ends of both sides of the upper positioning bracket are fixed with the bottom three layers of magnetic steel by second bolts. When the interaction force of the three layers of magnetic steel is within the human controllable range, the magnetic steel tooling is positioned through the position of the bottom layer of magnetic steel and the step position of the outer diameter of the lower rotor pressure ring. At this time, the bottom magnetic steel is wrapped by two matching structural aluminum sleeves of the first annular tooling, and the two spliced ​​aluminum sleeves are fixed by installing the second annular tooling. When installing each layer of magnetic steel, each layer is superimposed on the stop position of the next layer with the third annular tooling in turn, and high-strength structural glue is evenly applied to the corresponding magnetic steel position in advance, and the magnetic steel is slowly pushed to the corresponding position along the surface of the iron core. Due to the large interaction force, it is necessary to use the second bolt on the upper part to slowly advance. After the magnetic steel is assembled in place, the copper nut is tightened through the corresponding threaded hole of the third annular tooling to radially fix the magnetic steel, and finally the two layers of magnetic steel are guided to the installation position by the magnetic steel guide aluminum mold.

[0007] After the magnet assembly is completed and without damaging the rotor structure, all tooling can be simply disassembled and transferred to the next processing step without affecting the original size and structure of the rotor; during the assembly process, the magnet tipping and damage caused by excessive interaction force between the magnets can be effectively prevented.

[0008] As a preferred embodiment of the above technical solution, the first annular tooling, the second annular tooling and the third annular tooling are all designed with stoppers.

[0009] By stacking the stoppers in sequence, the magnets can be effectively kept in place, ensuring that each magnet is accurately installed in place and ensuring the consistency of the magnets.

[0010] As a preferred embodiment of the above technical solution, the first annular tooling, the second annular tooling and the third annular tooling are axially and radially fixed by first bolts.

[0011] When the structural adhesive has not taken effect, the subsequent magnetic steel assembly can be continued, which greatly speeds up the magnetic steel assembly time.

[0012] As a preferred embodiment of the above technical solution, the first annular tooling, the second annular tooling, the third annular tooling, the upper end positioning bracket and the magnetic steel guide aluminum mold are all made of aluminum materials.

[0013] The beneficial effects of the utility model are:

[0014] (1) After the magnetic steel is assembled and without damaging the rotor structure, all tooling can be simply disassembled and transferred to the next processing step without affecting the original size and structure of the rotor.

[0015] (2) During the assembly process, it is effectively prevented that the magnetic steel may tip over and break due to excessive interaction force between the magnetic steels. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The schematic diagram of the front cross-sectional structure provided by the embodiment of the utility model is shown.

[0017] Legend:

[0018] 1. First annular tooling; 2. Second annular tooling; 3. Third annular tooling; 4. First bolt; 5. Second bolt; 6. Upper end positioning bracket; 7. Magnetic steel guide aluminum mold. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments.

[0020] like Figure 1As shown, in the embodiment of the utility model: it includes an upper positioning bracket 6, and the bottom ends of both sides of the upper positioning bracket 6 are fixed with the bottom three layers of magnetic steel by the second bolts 5. When the interaction force of the three layers of magnetic steel is within the controllable range of manpower, the magnetic steel tooling is positioned by the position of the bottom three layers of magnetic steel and the step position of the outer diameter of the lower rotor pressure ring. At this time, the bottom magnetic steel is wrapped by two matching structural aluminum sleeves of the first annular tooling 1, and the two spliced ​​aluminum sleeves are fixed by installing the second annular tooling 2. When installing each layer of magnetic steel, each layer is superimposed on the stop position of the next layer with the third annular tooling 3 in turn, and high-strength structural glue is evenly applied to the corresponding magnetic steel position in advance, and the magnetic steel is slowly pushed to the corresponding position along the surface of the iron core. Due to the large interaction force, it is necessary to use the upper second bolt 5 to slowly advance. After the magnetic steel is assembled in place, the copper nut is tightened through the corresponding threaded hole of the third annular tooling 3 to radially fix the magnetic steel, and finally the two layers of magnetic steel are guided to the installation position by the magnetic steel guide aluminum mold 7.

[0021] like Figure 1 As shown, the first annular tooling 1, the second annular tooling 2 and the third annular tooling 3 are all designed with stoppers.

[0022] By stacking the stoppers in sequence, the magnets can be effectively kept in place, ensuring that each magnet is accurately installed in place and ensuring the consistency of the magnets.

[0023] like Figure 1 As shown, the first annular tooling 1 , the second annular tooling 2 and the third annular tooling 3 are axially and radially fixed by first bolts 4 .

[0024] When the structural adhesive has not taken effect, the subsequent magnetic steel assembly can be continued, which greatly speeds up the magnetic steel assembly time.

[0025] like Figure 1 As shown, the first annular fixture 1, the second annular fixture 2, the third annular fixture 3, the upper end positioning bracket 6 and the magnetic steel guide aluminum mold 7 are all made of aluminum.

[0026] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A surface mounted magnetic steel assembly tool, comprising a first annular tool (1), a second annular tool (2), a third annular tool (3), an upper end positioning bracket (6) and a magnetic steel guide aluminum mold (7), characterized in that: The bottom ends of both sides of the upper positioning bracket (6) are fixed to the bottom three layers of magnetic steel by second bolts (5); the first annular tooling (1) has two matching structural aluminum sleeves to wrap the bottom magnetic steel; the second annular tooling (2) fixes the two spliced ​​aluminum sleeves; when installing each layer of magnetic steel, the third annular tooling (3) is superimposed on the stop position of the next layer; the second bolts (5) are slowly pushed forward; after the magnetic steel is assembled in place, the copper nuts are tightened through the corresponding threaded holes of the third annular tooling (3) to radially fix the magnetic steel; and the magnetic steel guide aluminum mold (7) is moved to the installation position.

2. The surface mounted magnetic steel assembly tool according to claim 1, characterized in that: The first annular tooling (1), the second annular tooling (2) and the third annular tooling (3) are all designed with stoppers.

3. The surface mounted magnetic steel assembly tool according to claim 1, characterized in that: The first annular fixture (1), the second annular fixture (2) and the third annular fixture (3) are axially and radially fixed by means of first bolts (4).

4. The surface mounted magnetic steel assembly tool according to claim 1, characterized in that: The first annular tooling (1), the second annular tooling (2), the third annular tooling (3), the upper end positioning bracket (6) and the magnetic steel guide aluminum mold (7) are all made of aluminum material.

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