Permanent magnet machine rotor magnetic steel module assembly tool

Abstract

The utility model discloses a permanent magnet machine rotor magnetic steel module assembly tool, which is used for assembling a magnetic steel module and a rotor support ring, and comprises a bottom plate and a support assembly which is arranged on the bottom plate and is used for supporting the rotor support ring, the limiting assembly is used for positioning the magnetic steel module, the gaskets are installed on the limiting assembly, the fixing piece is used for fixing the relative position of the rotor supporting ring and the magnetic steel module, and the limiting assembly is connected to the bottom plate and the rotor supporting ring so as to fix the position of the rotor supporting ring relative to the bottom plate. The permanent magnet machine rotor magnetic steel module assembly tool is simple in structure, improves the assembly efficiency, guarantees the assembly precision, and reduces the damage risk of the magnetic steel module through the arrangement of a plurality of gaskets.

Description

Technical Field

[0001] This utility model relates to the field of magnetic steel module assembly technology, and in particular to an assembly tooling for permanent magnet rotor magnetic steel modules. Background Technology

[0002] In nuclear power plants, megawatt-class nuclear generators mostly employ brushless excitation, which is paired with AlNiCo external rotor permanent magnet motors. Due to the large overall size and weight of AlNiCo magnets, the probability of cracking during casting is high, resulting in low yield and high production costs. Furthermore, the installation method of AlNiCo leads to problems such as small air gaps between the stator and rotor, and exposed magnets. During operation, rubbing against the rotor or the presence of foreign objects can easily cause magnet abrasion, posing a safety hazard to the generator unit. To address these issues, a novel rare-earth cobalt magnet module was designed to overcome the shortcomings of existing AlNiCo magnets. Due to the new design, the fixing method of the magnet module is also different, requiring new assembly tooling. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an assembly tooling for permanent magnet rotor magnet modules.

[0004] The technical solution adopted by this utility model to solve its technical problem is: to construct a permanent magnet rotor magnet module assembly fixture for assembling the magnet module and the rotor support ring, which includes a base plate, a support assembly mounted on the base plate for supporting the rotor support ring, a limiting assembly for positioning the magnet module, a plurality of shims mounted on the limiting assembly, and a fixing member for fixing the relative position of the rotor support ring and the magnet module;

[0005] The limiting components are respectively connected to the base plate and the rotor support ring to fix the position of the rotor support ring relative to the base plate.

[0006] In some embodiments, the support assembly includes a bearing support mounted on the base plate, a positioning shaft for supporting the rotor support ring, and a plurality of bearings, wherein the positioning shaft is rotatably mounted on the bearing support via the plurality of bearings.

[0007] In some embodiments, the number of support components is two, and the two support components are located separately on both sides of the limiting component.

[0008] In some embodiments, the limiting component includes a first limiting plate, a second limiting plate, and a limiting plate connecting block;

[0009] Both the first limiting plate and the second limiting plate are connected to the base plate via the limiting plate connecting block, and both the first limiting plate and the second limiting plate are connected to the rotor support ring via fasteners. An accommodating space for the installation of the magnet module is formed between the first limiting plate and the second limiting plate.

[0010] During the assembly of the magnet module, a plurality of the gaskets are located in the accommodating space and between the magnet module and the inner wall of the rotor support ring.

[0011] In some embodiments, the base plate has an opening at the center, and the first limiting plate and the second limiting plate are located on opposite sides of the opening.

[0012] In some embodiments, the base plate, the first limiting plate, the second limiting plate, and the limiting plate connecting block are all made of aluminum.

[0013] In some embodiments, the fixing member passes through the rotor support ring and is connected to the magnet module, and the gasket has a through groove for the fixing member to pass through.

[0014] In some embodiments, the gasket is a fiberglass board.

[0015] In some embodiments, the permanent magnet rotor magnet module assembly fixture further includes a support frame for supporting the base plate.

[0016] In some embodiments, the support frame is assembled from multiple aluminum profiles.

[0017] The present invention offers the following advantages: This permanent magnet rotor magnet module assembly fixture utilizes a support assembly to support the rotor support ring and a limiting assembly to position the magnet module. The limiting assembly is connected to both the base plate and the rotor support ring to fix the position of the rotor support ring relative to the base plate. After the rotor support ring is fixed in position by the limiting assembly, multiple shims are installed on the limiting assembly, and a fixing component is connected to the rotor support ring. The magnet module is then installed on the shims, and the shims are removed sequentially from top to bottom. Immediately after removing the shims, the position of the fixing component is adjusted until the magnet module is flush with the inner wall of the rotor support ring. Finally, a tool is used to fix the relative position of the rotor support ring and the magnet module using the fixing component, completing the installation of the rotor support ring and the magnet module. This permanent magnet rotor magnet module assembly fixture has a simple structure, improves assembly efficiency, and ensures assembly accuracy. By using multiple shims, it reduces the risk of damage to the magnet module. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of the permanent magnet rotor magnet module assembly tooling in some embodiments of this utility model;

[0020] Figure 2 This is a partial structural schematic diagram of the assembly tooling for the permanent magnet rotor magnet module in some embodiments of this utility model;

[0021] Figure 3 This is another schematic diagram of a partial structure of the permanent magnet rotor magnet module assembly tooling in some embodiments of this utility model;

[0022] Figure 4 This is a structural front view of the assembly tooling for the permanent magnet rotor magnet module in some embodiments of this utility model. Detailed Implementation

[0023] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0024] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] Reference Figures 1 to 4 This is an assembly tooling for a permanent magnet rotor magnet module in some embodiments of the present invention, used for assembling the magnet module 4 and the rotor support ring 2. It includes a base plate 1, a support assembly 3 mounted on the base plate 1 for supporting the rotor support ring 2, a limiting assembly 5 for positioning the magnet module 4, multiple gaskets 6 mounted on the limiting assembly 5, and a fixing member 7 for fixing the relative position of the rotor support ring 2 and the magnet module 4. The limiting assembly 5 is connected to the base plate 1 and the rotor support ring 2 respectively to fix the position of the rotor support ring 2 relative to the base plate 1.

[0026] Understandably, since there is a relatively large attraction between the magnet module 4 and the rotor support ring 2, if the magnet module 4 is directly installed on the inner wall of the rotor support ring 2, it will easily cause damage to the magnet module 4. Therefore, multiple shims 6 are set, and the magnet module 4 is installed on the inner wall of the rotor support ring 2 by slowly removing the shims 6, so as to avoid damage to the magnet module 4. This permanent magnet rotor magnet module assembly fixture uses a support component 3 to support the rotor support ring 2 and a limiting component 5 to position the magnet module 4. The limiting component 5 is connected to both the base plate 1 and the rotor support ring 2 to fix the position of the rotor support ring 2 relative to the base plate 1. After the rotor support ring 2 is fixed in position by the limiting component 5, multiple shims 6 are installed on the limiting component 5, and a fixing piece 7 is connected to the rotor support ring 2. The magnet module 4 is then installed on the shims 6, and the shims 6 are removed sequentially from top to bottom. After removing the shims 6, the position of the fixing piece 7 is immediately adjusted until the magnet module 4 is flush with the inner wall of the rotor support ring 2. Finally, a tool is used to fix the relative position of the rotor support ring 2 and the magnet module 4 using the fixing piece 7, completing the installation of the rotor support ring 2 and the magnet module 4. This permanent magnet rotor magnet module assembly fixture has a simple structure, improves assembly efficiency, and ensures assembly accuracy. By using multiple shims 6, it reduces the risk of damage to the magnet module 4.

[0027] like Figure 1 As shown, the support assembly 3 includes a bearing support 31 mounted on the base plate 1, a positioning shaft 32 for supporting the rotor support ring 2, and multiple bearings. The positioning shaft 32 is rotatably mounted on the bearing support 31 via multiple bearings. There are two support assemblies 3, located separately on either side of the limiting assembly 5. Understandably, the two positioning shafts 32 are rotatably mounted on the bearing support 31 via multiple bearings. In use, the two positioning shafts 32 support the outer wall of the rotor support ring 2. When the limiting assembly 5 does not fix the position of the rotor support ring 2, the rotor support ring 2 can rotate along its own axis on the two positioning shafts 32, facilitating the rotation of the rotor support ring 2.

[0028] like Figure 2 and Figure 3As shown, the limiting component 5 includes a first limiting plate 51, a second limiting plate 52, and a limiting plate connecting block 53. Both the first limiting plate 51 and the second limiting plate 52 are connected to the base plate 1 via the limiting plate connecting block 53. Both the first limiting plate 51 and the second limiting plate 52 can be connected to the rotor support ring 2 via fasteners. A receiving space is formed between the first limiting plate 51 and the second limiting plate 52 for installing the magnet module 4. During the assembly of the magnet module 4, multiple gaskets 6 are located in the receiving space, between the magnet module 4 and the inner wall of the rotor support ring 2. Both the first limiting plate 51 and the second limiting plate 52 can be bolted to the rotor support ring 2. When the first limiting plate 51 and the second limiting plate 52 are connected to the rotor support ring 2, the function of fixing the position of the rotor support ring 2 relative to the base plate 1 is achieved. Meanwhile, the accommodating space formed between the first limiting plate 51 and the second limiting plate 52 can limit the magnetic steel module 4 so as to carry out the disassembly and assembly of the magnetic steel module 4.

[0029] An opening is provided in the middle of the base plate 1. The first limiting plate 51 and the second limiting plate 52 are located on opposite sides of the opening. The fastener 7 passes through the rotor support ring 2 and is connected to the magnet module 4. A through groove 61 is provided on the gasket 6 for the fastener 7 to pass through. Understandably, this opening is used to facilitate the installation and removal of the fastener 7. The fastener 7 can be a screw. The fastener 7 can enter from the opening of the base plate, then pass through the outer wall of the rotor support ring 2, and finally extend into the interior of the rotor support ring 2 to connect to the magnet module 4. The through groove 61 is adaptively designed to avoid the fastener 7.

[0030] Preferably, the base plate 1, the first limiting plate 51, the second limiting plate 52, and the limiting plate connecting block 53 are all made of aluminum, ensuring the strength and durability of the base plate 1, the first limiting plate 51, the second limiting plate 52, and the limiting plate connecting block 53. Specifically, the base plate 1 is a 20mm thick aluminum plate, the limiting plate connecting block 53 is a 20mm thick aluminum plate, and the first limiting plate 51 and the second limiting plate 52 are both 35mm thick aluminum plates.

[0031] The gasket 6 is made of fiberglass board, which has good insulation, strong heat resistance, good corrosion resistance and high mechanical strength.

[0032] The assembly fixture for the permanent magnet rotor magnet module also includes a support frame 8 for supporting the base plate 1. The support frame 8 is assembled from multiple aluminum profiles. The support frame 8 provides support for the base plate 1.

[0033] The installation process for the permanent magnet rotor magnet module assembly fixture is as follows:

[0034] 1. The relative positions of the rotor support ring 2 and the base plate 1 are fixed by the first limiting plate 51, the second limiting plate 52 and the limiting plate connecting block 53;

[0035] 2. Install the shims 6, stack the shims 6 to a certain height, and use the fastener 7 to pass through the through hole on the rotor support ring 2. The fastener 7 should be higher than the plane of the shims 6.

[0036] 3. Install the magnet module 4, align the holes on the base plate 1 of the magnet module 4 with the fixing piece 7, and protect it with the first limiting plate 51 and the second limiting plate 52;

[0037] 4. Remove the shims 6 one by one from top to bottom, and adjust the fixing piece 7 immediately after each removal of the shims 6 to ensure that the magnet module 4 always presses the shims 6 tightly.

[0038] 5. Repeat step 4 until the magnet module 4 is in contact with the inner wall of the rotor support ring 2, and then use a torque wrench to tighten the fixing piece 7 to fix the position between the magnet module 4 and the rotor support ring 2.

[0039] 6. Loosen the connection between the first limiting plate 51, the second limiting plate 52 and the rotor support ring 2, rotate the rotor support ring 2, and install the next magnet module 4. The magnet module 4 is assembled with the same polarity on the rotor support ring 2. The magnet module 4 is stabilized by the repulsive force of the magnet modules with the same polarity, that is, the installation direction of the magnet modules 4 on the rotor support ring 2 is consistent.

[0040] The disassembly process of the permanent magnet rotor magnet module assembly fixture is as follows:

[0041] 1. The permanent magnet rotor is fixed on the base plate 1 by the first limiting plate 51, the second limiting plate 52 and the limiting plate, and the magnet module 4 that needs to be disassembled is protected by the first limiting plate 51 and the second limiting plate 52.

[0042] 2. Use the fastener 7 to push up the corresponding magnet module 4 through the through hole of the rotor support ring 2, and then insert the shim 6 into the gap;

[0043] 3. Repeat step 2 until the magnet module 4 has no obvious attraction to the rotor support ring 2, then add the last shim 6, and then remove the fastener 7.

[0044] 4. The magnet module 4 slides out of the rotor support ring 2 by being limited by the first limiting plate 51 and the second limiting plate 52, and the disassembly of the magnet module 4 is completed.

[0045] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A permanent magnet rotor magnet module assembly fixture, used for assembling the magnet module (4) and the rotor support ring (2), characterized in that, It includes a base plate (1), a support assembly (3) mounted on the base plate (1) for supporting the rotor support ring (2), a limiting assembly (5) for positioning the magnet module (4), a plurality of gaskets (6) mounted on the limiting assembly (5), and a fixing member (7) for fixing the relative position of the rotor support ring (2) and the magnet module (4); The limiting component (5) is connected to the base plate (1) and the rotor support ring (2) respectively to fix the position of the rotor support ring (2) relative to the base plate (1).

2. The assembly fixture for the permanent magnet rotor magnet module according to claim 1, characterized in that, The support assembly (3) includes a bearing support (31) mounted on the base plate (1), a positioning shaft (32) for supporting the rotor support ring (2), and a plurality of bearings, wherein the positioning shaft (32) is rotatably mounted on the bearing support (31) via the plurality of bearings.

3. The assembly fixture for the permanent magnet rotor magnet module according to claim 1, characterized in that, The number of the support components (3) is two, and the two support components (3) are located on both sides of the limiting component (5).

4. The assembly fixture for the permanent magnet rotor magnet module according to claim 1, characterized in that, The limiting component (5) includes a first limiting plate (51), a second limiting plate (52), and a limiting plate connecting block (53); The first limiting plate (51) and the second limiting plate (52) are both connected to the base plate (1) through the limiting plate connecting block (53), and the first limiting plate (51) and the second limiting plate (52) are both connected to the rotor support ring (2) through fasteners. A accommodating space for the installation of the magnet module (4) is formed between the first limiting plate (51) and the second limiting plate (52). When the magnet module (4) is assembled, a plurality of the gaskets (6) are located in the accommodating space and between the magnet module (4) and the inner wall of the rotor support ring (2).

5. The assembly fixture for the permanent magnet rotor magnet module according to claim 4, characterized in that, The base plate (1) has an opening in the middle, and the first limiting plate (51) and the second limiting plate (52) are located on both sides of the opening.

6. The assembly fixture for the permanent magnet rotor magnet module according to claim 4, characterized in that, The base plate (1), the first limiting plate (51), the second limiting plate (52) and the limiting plate connecting block (53) are all made of aluminum.

7. The assembly fixture for the permanent magnet rotor magnet module according to claim 1, characterized in that, The fixing member (7) passes through the rotor support ring (2) and is connected to the magnet module (4). The gasket (6) has a through groove (61) for the fixing member (7) to pass through.

8. The assembly fixture for the permanent magnet rotor magnet module according to claim 1, characterized in that, The gasket (6) is a fiberglass board.

9. The assembly fixture for the permanent magnet rotor magnet module according to claim 1, characterized in that, The permanent magnet rotor magnet module assembly fixture also includes a support frame (8) for supporting the base plate (1).

10. The assembly fixture for the permanent magnet rotor magnet module according to claim 1, characterized in that, The support frame (8) is assembled from multiple aluminum profiles.

Images