A magnet positioning and installing clamp for a permanent magnet synchronous motor

Abstract

The utility model discloses a magnet steel positioning installation clamp of permanent magnet synchronous motor relates to magnet steel installation technical field. The utility model discloses a mould is provided with a plurality of magnet steel at the top, the upper portion of mould is provided with the rotor, still includes: installation component, installation component sets up inside the mould. The utility model discloses through setting up installation component, specifically is magnet steel is prevented and is adsorbed to the outer surface two -proof adsorption strip of lift column and is blocked, prevents adsorbing to lift column, and the rotor bottom pivot is inserted into the placement groove, and the position is made and prevents the displacement strip alignment positioning block tip, and the rotor pivot is pressed down, and the magnet steel bottom is blocked and fixed when lift column is down, and after falling to the limit position, the rotor bottom is flush with the top of mould, and magnet steel is adsorbed to the outer surface of rotor, and prevents the displacement strip and prevents adjacent magnet steel and each other, and when pulling out the rotor after installation, the distance between the anti -hand -clamping ring and lift column is equal to the thickness of magnet steel, and the excess magnet steel is blocked, and it remains in the positioning groove, and magnet steel is avoided from being injured finger because of magnetic force.

Description

Technical Field

[0001] This utility model belongs to the field of magnet installation technology, and in particular relates to a magnet positioning and installation fixture for a permanent magnet synchronous motor. Background Technology

[0002] In the manufacturing field of permanent magnet synchronous motors, the magnets are the core components that provide a constant magnetic field. Their installation accuracy and reliability directly determine the performance boundary of the motor. The installation methods of permanent magnet synchronous motor magnets are mainly divided into embedded type and external type.

[0003] Traditionally, the installation of external magnets in permanent magnet synchronous motors mainly involves workers picking up the magnets and attaching them to the pre-reserved positions on the outer surface of the rotor. However, due to the excessive magnetic force of the magnets, it is very easy for workers' fingers to be pinched, resulting in injury. To address this, we have proposed a magnet positioning and installation fixture for permanent magnet synchronous motors. Utility Model Content

[0004] The purpose of this utility model is to provide a magnet positioning and installation fixture for a permanent magnet synchronous motor. Specifically, the magnet is blocked by two anti-adsorption strips on the outer surface of the lifting column to prevent it from adsorbing onto the column. The rotor shaft is inserted into the placement slot, and the anti-displacement strip is aligned with the tip of the positioning block. The rotor shaft is then pressed down. As the lifting column moves downward, the bottom of the magnet is blocked and fixed by the mold. After reaching its limit position, the bottom of the rotor is flush with the top of the mold, and the magnet is adsorbed onto the outer surface of the rotor. The anti-displacement strip prevents adjacent magnets from attracting each other. When the rotor is pulled out after installation, the distance between the inner ring of the anti-pinch hand ring and the lifting column is equal to the magnet thickness, blocking excess magnet and keeping it in the positioning slot. This also prevents the magnet from pinching fingers due to magnetic force, solving the problem that the magnet's excessive magnetic force can easily pinch the operator's fingers during installation, causing injury.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a magnet positioning and mounting fixture for a permanent magnet synchronous motor, comprising a mold, wherein a plurality of magnets are disposed on the top of the mold, and a rotor is disposed above the mold, and further comprising:

[0007] A mounting assembly, disposed inside the mold, is used to mount magnets onto the outer surface of the rotor; and

[0008] A positioning component is disposed on the top of the mold and is used to position a plurality of magnets.

[0009] Furthermore, the mold has a circular groove inside, and the rotor is fixedly connected to the top and bottom of the rotor.

[0010] Furthermore, the installation assembly includes a lifting column, and a plurality of anti-displacement strips are fixedly connected to the outer surface of the rotor. A placement slot is provided on the top of the lifting column, and the rotor is inserted into the placement slot through its bottom rotating shaft.

[0011] Furthermore, the positioning component includes several positioning blocks, the bottom of each positioning block is fixedly connected to the top of the mold, every two positioning blocks form a positioning groove, and several magnets slide and limit the positioning groove.

[0012] Furthermore, several anti-adsorption strips are fixedly connected to the outer surface of the lifting column. The anti-adsorption strips are made of high-hardness rubber. Every two anti-adsorption strips are set as a group. The side of each group of anti-adsorption strips away from the lifting column abuts against the side of the magnet close to the lifting column.

[0013] Furthermore, anti-pinch wristbands are fixedly connected to the top of several positioning blocks on one side that is close to each other by bolts, three limiting protrusions are fixedly connected to the bottom of the outer surface of the lifting column, and three limiting grooves are opened in the inner wall of the circular groove. The limiting protrusions and the limiting grooves are slidably limited.

[0014] Furthermore, the inner wall of the circular groove is provided with several movable grooves, the anti-adsorption strip is slidably limited to the movable grooves, and a spring is fixedly connected to the bottom of the lifting column, with one end of the spring fixedly connected to the bottom of the inner wall of the circular groove.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model, through the setting of installation components, specifically, prevents the magnet from being attracted to the lifting column by two anti-adsorption strips on the outer surface of the lifting column. The rotor bottom shaft is inserted into the placement groove, and the position is adjusted so that the anti-displacement strip is aligned with the tip of the positioning block. The rotor shaft is pressed down, and when the lifting column moves down, the bottom of the magnet is blocked and fixed by the mold. After reaching the extreme position, the bottom of the rotor is flush with the top of the mold, and the magnet is attracted to the outer surface of the rotor. The anti-displacement strip prevents adjacent magnets from attracting each other. When the rotor is pulled out after installation, the distance between the inner ring of the anti-pinch hand ring and the lifting column is equal to the thickness of the magnet, blocking excess magnets and keeping them in the positioning groove, while avoiding the magnets from pinching fingers due to magnetic force.

[0017] 2. This utility model, by setting up a positioning component, specifically, involves carefully placing several magnets into several positioning slots using tools. Since the lifting column is made of metal, the magnets will move towards the lifting column due to magnetic force and be attracted to it. Because the magnets will attract each other due to their own magnetic force, several magnets will be connected as one unit and will not tip over. This setting can position several magnets, eliminating the need for manual positioning.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the positioning component of this utility model;

[0022] Figure 3 This is a schematic diagram of the lifting column structure of this utility model;

[0023] Figure 4 This utility model Figure 3 A magnified structural diagram of A in the middle;

[0024] Figure 5 This is a schematic diagram of the limiting groove structure of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Mold; 11. Circular groove; 12. Magnet; 13. Rotor; 2. Mounting assembly; 21. Anti-displacement strip; 22. Lifting column; 221. Placement groove; 222. Anti-adsorption strip; 223. Limiting protrusion; 224. Limiting groove; 225. Moving groove; 226. Spring; 23. Anti-pinch wristband; 3. Positioning assembly; 31. Positioning block; 32. Positioning groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5 As shown, this utility model is a magnet positioning and mounting fixture for a permanent magnet synchronous motor, including a mold 1, a plurality of magnets 12 disposed on the top of the mold 1, a rotor 13 disposed above the mold 1, and further including:

[0029] Mounting component 2, disposed inside mold 1, is used to mount magnet 12 onto the outer surface of rotor 13; and

[0030] Positioning component 3 is set on the top of mold 1 and is used to position several magnets 12.

[0031] The mold 1 has a circular groove 11 inside, and the rotor 13 has a rotating shaft fixedly connected to the top and bottom.

[0032] The mounting assembly 2 includes a lifting column 22, and a number of anti-displacement strips 21 are fixedly connected to the outer surface of the rotor 13. The top of the lifting column 22 is provided with a placement slot 221, and the rotor 13 is inserted into the placement slot 221 through its bottom rotating shaft.

[0033] The positioning component 3 includes several positioning blocks 31, the bottom of which is fixedly connected to the top of the mold 1. Every two positioning blocks 31 form a positioning groove 32. Several magnets 12 slide and limit each other with the positioning groove 32. In use, several magnets 12 are carefully placed into the positioning grooves 32 using tools. Since the lifting column 22 is made of metal, the magnets 12 will move towards the lifting column 22 due to magnetic force and be attracted to it. Since the magnets 12 will attract each other due to their own magnetic force, several magnets 12 will be connected as one and will not tip over. This setting can position several magnets 12 without the need for manual positioning.

[0034] Several anti-adsorption strips 222 are fixedly connected to the outer surface of the lifting column 22. The anti-adsorption strips 222 are made of high-hardness rubber. Each pair of anti-adsorption strips 222 is set as a group. The side of each group of anti-adsorption strips 222 away from the lifting column 22 abuts against the side of the magnet 12 close to the lifting column 22.

[0035] Several positioning blocks 31 are fixedly connected to an anti-pinch hand ring 23 by bolts on one side of their tops that are close to each other. Three limiting protrusions 223 are fixedly connected to the bottom of the outer surface of the lifting column 22. Three limiting grooves 224 are opened on the inner wall of the circular groove 11. The limiting protrusions 223 and the limiting grooves 224 slide and limit each other.

[0036] The inner wall of the circular groove 11 is provided with several movable grooves 225. The anti-adsorption strips 222 are slidably limited to the movable grooves 225. A spring 226 is fixedly connected to the bottom of the lifting column 22, and one end of the bottom of the spring 226 is fixedly connected to the bottom of the inner wall of the circular groove 11. The magnet 12 is blocked by two anti-adsorption strips 222 on the outer surface of the lifting column 22 to prevent it from being adsorbed onto the lifting column 22. The bottom shaft of the rotor 13 is inserted into the placement groove 221, and the position is adjusted so that the anti-displacement strip 21 is aligned with the tip of the positioning block 31 and pressed down. When the rotor 13 shaft moves downward and the lifting column 22 moves downward, the bottom of the magnet 12 is blocked and fixed by the mold 1. After it reaches the limit position, the bottom of the rotor 13 is flush with the top of the mold 1, and the magnet 12 is attracted to the outer surface of the rotor 13. The anti-displacement strip 21 prevents adjacent magnets 12 from attracting each other. When the rotor 13 is pulled out after installation, the distance between the inner ring of the anti-pinch hand ring 23 and the lifting column 22 is equal to the thickness of the magnet 12, blocking the excess magnet 12 and keeping it in the positioning groove 32. At the same time, it prevents the magnet 12 from pinching the fingers due to magnetic force.

[0037] One specific application of this embodiment is as follows: During use, several magnets 12 are carefully placed into several positioning slots 32 using a tool. Since the lifting column 22 is made of metal, the magnets 12 will move towards the lifting column 22 due to magnetic force, attracting it. Because the magnets 12 attract each other due to their own magnetic force, several magnets 12 will be connected as one unit, preventing them from tipping over. However, the magnets 12 are blocked by two anti-adsorption strips 222 on the outer surface of the lifting column 22. These two anti-adsorption strips 222 are made of high-hardness rubber and are not attracted by the magnets 12 themselves. This also prevents the magnets 12 from directly adsorbing onto the outer surface of the lifting column 22. Then, the shaft at the bottom of the rotor 13 is inserted into the placement slot 221, and its position is adjusted so that the anti-displacement strip 21 aligns with the tip of the positioning block 31. Then, the shaft at the top of the rotor 13 is pressed down. As the lifting column 22 moves downward, the bottom of the magnets 12 is blocked by the top of the mold 1, thus fixing the magnets 12 in place. When the lifting column 22 moves to its limit position, the bottom of the rotor 13 is flush with the top of the mold 1. At this point, several magnets 12 will adhere to the outer surface of the rotor 13. Simultaneously, the anti-displacement strip 21 prevents two adjacent magnets 12 from adsorbing onto the outer surface of the rotor 13. 2. After installation, grasp the shaft at the top of the rotor 13 and pull it out. During the pulling process, the magnets 12 will also attract each other. At this time, the anti-pinch ring 23 can block multiple magnets 12 that are attracted together. The distance between the inner ring of the anti-pinch ring 23 and the outer surface of the lifting column 22 is equivalent to the thickness of one magnet 12. Therefore, when the rotor 13 is pulled out, only one magnet 12 will be attracted between the two anti-adsorption strips 222 on its outer surface. The excess magnets 12 will be blocked by the anti-pinch ring 23 and continue to remain in the positioning groove 32. At the same time, the anti-pinch ring 23 can also prevent magnets from being attracted together. Due to excessive magnetic force, the magnet 12 is attracted to the rotor 13 when it is pressed down and pulled out, which may pinch the fingers of the workers. During the movement of the lifting column 22, several anti-adsorption strips 222 on its outer surface slide and limit the movement of several moving grooves 225 on the inner wall of the circular groove 11 to prevent the lifting column 22 from rotating. At the same time, the three limiting protrusions 223 at the bottom of the lifting column 22 slide and limit the movement of three limiting grooves 224 to prevent the lifting column 22 from detaching from the circular groove 11. When the rotor 13 is pulled out, the spring 226 will push the lifting column 22 to reset through its own elasticity.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A magnet positioning and mounting fixture for a permanent magnet synchronous motor, comprising a mold (1), wherein a plurality of magnets (12) are disposed on the top of the mold (1), and a rotor (13) is disposed above the mold (1), characterized in that, Also includes: Mounting assembly (2), which is disposed inside the mold (1), is used to mount the magnet (12) on the outer surface of the rotor (13); as well as Positioning component (3) is disposed on the top of mold (1) and is used to position a plurality of magnets (12).

2. The magnet positioning and mounting fixture for a permanent magnet synchronous motor according to claim 1, characterized in that, The mold (1) has a circular groove (11) inside, and the rotor (13) has a rotating shaft fixedly connected to the top and bottom.

3. The magnet positioning and mounting fixture for a permanent magnet synchronous motor according to claim 2, characterized in that, The installation assembly (2) includes a lifting column (22), and a number of anti-displacement strips (21) are fixedly connected to the outer surface of the rotor (13). The top of the lifting column (22) is provided with a placement groove (221), and the rotor (13) is inserted into the placement groove (221) through its bottom rotating shaft.

4. The magnet positioning and mounting fixture for a permanent magnet synchronous motor according to claim 3, characterized in that, The positioning component (3) includes several positioning blocks (31), the bottom of which is fixedly connected to the top of the mold (1), and every two positioning blocks (31) form a positioning groove (32), and several magnets (12) slide and limit each other with the positioning groove (32).

5. The magnet positioning and mounting fixture for a permanent magnet synchronous motor according to claim 4, characterized in that, The outer surface of the lifting column (22) is fixedly connected with several anti-adsorption strips (222). The anti-adsorption strips (222) are made of high-hardness rubber. Each pair of anti-adsorption strips (222) is set as a group. The side of each group of anti-adsorption strips (222) away from the lifting column (22) abuts against the side of the magnet (12) close to the lifting column (22).

6. The magnet positioning and mounting fixture for a permanent magnet synchronous motor according to claim 5, characterized in that, Several positioning blocks (31) are fixedly connected to anti-pinch hand rings (23) by bolts on the side of their tops that are close to each other. Three limiting protrusions (223) are fixedly connected to the bottom of the outer surface of the lifting column (22). Three limiting grooves (224) are opened in the inner wall of the circular groove (11). The limiting protrusions (223) and the limiting grooves (224) slide and limit each other.

7. The magnet positioning and mounting fixture for a permanent magnet synchronous motor according to claim 6, characterized in that, The inner wall of the circular groove (11) is provided with several movable grooves (225). The anti-adsorption strip (222) is slidably limited to the movable grooves (225). The bottom of the lifting column (22) is fixedly connected to a spring (226). One end of the bottom of the spring (226) is fixedly connected to the bottom of the inner wall of the circular groove (11).

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