Mounting structure and method of permanent magnet rotor surface-mounted magnetic steel

Abstract

The invention discloses a permanent magnet rotor surface-mounted magnetic steel mounting structure and method, and belongs to the technical field of motors, the permanent magnet rotor surface-mounted magnetic steel mounting structure comprises a rotor, a magnetic steel guide assembly is arranged above the rotor, the magnetic steel guide assembly comprises a plurality of pieces of simulation magnetic steel, the magnetic steel guide assembly is used for mounting magnetic steel to be mounted, and a mounting assembly is arranged at the bottom of the rotor. A plurality of locking assemblies are arranged on the mounting assembly, a plurality of magnetic steel mounting parts are arranged on the rotor, magnetic steel and a magnetic yoke before mounting are separated through a magnetic steel guide assembly tool, in the matching process of the magnetic steel and the magnetic yoke, the hand is evacuated to a safe position, safety risks are avoided, a magnetic steel pushing mode is not adopted, adsorption is prevented through a non-magnetic-conductive material, and the magnetic steel is prevented from being damaged. Glue pressing is used for replacing glue pushing, smooth installation of the surface-mounted magnetic steel is achieved, material loss is avoided, and the phenomenon that poor installation is prone to occurring in the mutual exclusion process of the magnetic steel, and the performance of a motor is affected is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric motors, and in particular relates to a permanent magnet rotor surface mounted magnetic steel installation structure and method. Background Art

[0002] The installation of permanent magnet motor rotor magnets is a process that requires special attention in the entire permanent magnet motor assembly process. There are two types of permanent magnet motor rotor magnets: built-in and surface-mounted. The built-in type is to open a magnetic steel slot in the iron core, and the magnet is inserted into the magnetic steel slot for fixing; the surface-mounted type is to paste the magnet on the surface of the yoke, which is usually divided into a method with positioning slots and a pure surface-mounted method. The rotor with positioning slots determines the position and angle of the magnets due to the structure, which can limit the magnets from being skewed during installation, has good assembly processability, and high installation efficiency, but the positioning slots have high processing accuracy, so the processing cost is very high; the other type uses a pure surface-mounted method, where the magnets and the yoke are bonded with epoxy glue, and the arrangement of the magnets and the attraction and repulsion between the magnets require special tooling for assembly and fixing with epoxy glue. Because the rotor has strong magnetism, the mutual repulsion of the magnets is easy to be poorly installed, which will affect the performance of the motor. Summary of the invention

[0003] The object of the present invention is to provide a permanent magnet rotor surface mounted magnetic steel installation structure and method to solve at least one aspect of the problems and defects raised in the above background technology.

[0004] A permanent magnet rotor surface mounted magnet installation structure is provided, comprising a rotor, a magnet guide assembly is arranged above the rotor, the magnet guide assembly comprises a plurality of simulated magnets, the magnet guide assembly is used to install the magnets to be installed, a mounting assembly is arranged at the bottom of the rotor, a plurality of locking assemblies are arranged on the mounting assembly, and a plurality of magnet mounting parts are arranged on the rotor.

[0005] Furthermore, the magnetic steel guide assembly also includes a rubber pad and a magnetic steel guide plate, the magnetic steel guide plate is arranged above the rotor, the upper part of the magnetic steel guide plate is movably connected with a rubber pad, and several simulated magnetic steel outer sleeves are provided with installation components, the rubber pad is arranged above the magnetic steel guide plate, and is movably connected with the magnetic steel guide plate, so that the thickness of the glue layer can be controlled and maintained consistent during the installation of the magnetic steel. When the magnetic steel to be installed is installed, the rubber pad plays a role in controlling the thickness of the glue layer, ensuring that each piece of magnetic steel can be evenly filled with the glue layer after installation, enhancing the bonding effect, and increasing the firmness and durability of the installation. The magnetic steel guide plate is arranged above the rotor, providing a precise guide surface, so that the magnetic steel to be installed can be accurately positioned above the magnetic steel installation part, ensuring the position accuracy during installation, and the magnetic steel will not shift or tilt during the installation process, making the assembly more precise, improving the overall installation quality, and ensuring the stability of the position of the simulated magnetic steel before disassembly, laying the foundation for the smooth installation of the magnetic steel to be installed.

[0006] Furthermore, the simulated magnetic steel is made of non-magnetic material.

[0007] Furthermore, the non-magnetic material is aluminum alloy 6061.

[0008] Furthermore, the magnetic steel guide plate is provided with a plurality of magnetic steel guide grooves, and the rubber pad is slidably connected in the magnetic steel guide grooves. The sliding connection method simplifies the installation steps, avoids frequent alignment adjustments, and reduces errors that may be introduced due to operation. At the same time, the sliding connection ensures the stability of the rubber pad, and there will be no loosening or displacement during the entire assembly process, making the magnetic steel guide more stable and safe.

[0009] Furthermore, a glue coating groove is provided on the glue pad, and the glue coating groove is used for coating epoxy glue. During the installation process, the epoxy glue can evenly flow out or extrude from the glue coating groove to the surface of the magnetic steel mounting part, avoiding the phenomenon of uneven thickness of the glue layer. The glue coating groove enables the gluing step to be completed quickly before each magnetic steel is installed.

[0010] Furthermore, the mounting assembly includes an annular mounting clamp, which is sleeved on the bottom of the rotor. A plurality of locking assemblies are arranged in the circumferential direction of the upper circle of the annular mounting clamp. The locking assembly locks the mounting position of the magnet by tightening the clamp, thereby preventing the magnet from being displaced due to external vibration or magnetic force during the installation of the magnet. The arrangement of the annular mounting clamp and the locking assembly enables the installation of the magnet to be completed in sequence and in steps. After installing a certain magnet, the operator can gradually lock the corresponding locking assembly to prevent the displacement of the unfixed magnet.

[0011] Furthermore, the locking assembly includes two locking bolts, and the annular mounting clamp is provided with a plurality of through holes, and the two locking bolts are movably connected in the plurality of through holes. The two locking bolts are movably connected in the plurality of through holes, and are used to fix and lock the simulated magnet when not disassembled. The two locking bolts press the magnet to be installed accommodated in the magnet mounting part to ensure that the epoxy glue fully fills and seals the gap between the magnet mounting parts. The uniform pressure provided by the two locking bolts further compacts the glue layer, so that the bonding effect of the glue layer is better, the bonding firmness and durability are improved, the influence of external factors on the glue layer is reduced, and the service life of the magnet is extended.

[0012] Furthermore, a method for installing a permanent magnet rotor surface-mounted magnetic steel installation structure comprises the following steps: S1, replacing the simulated magnetic steel with the magnetic steel to be installed.

[0013] Furthermore, a method for installing a permanent magnet rotor surface-mounted magnetic steel installation structure further includes the following steps: S1.1, sequentially installing the magnetic steel to be installed, installing a rubber pad in a magnetic steel guide groove at the upper part of the magnetic steel guide plate, loosening the locking assembly, loosening a simulated magnetic steel, removing the simulated magnetic steel, pushing the lower part of the rubber pad to the empty space at the lower part of the rotor after the simulated magnetic steel is removed, and coating epoxy glue on the surface of the magnetic steel installation part;

[0014] S1.2. Install the magnetic steel to be installed in the empty space after the simulated magnetic steel is removed by using a rubber pad;

[0015] S1.3, repeat steps S2 and S3 until all the magnets to be installed are installed on each magnet installation part;

[0016] S1.4. After the magnetic steel to be installed is installed and fixed on each magnetic steel installation part, the installation components are disassembled and the residual glue residue on the surface of each magnetic steel to be installed is cleaned.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The magnetic steel guide assembly, installation assembly, locking assembly and magnetic steel installation part provided by the present invention are pre-installed with the magnetic steel installation assembly, and the simulated magnetic steel on the magnetic steel guide assembly is locked with the locking assembly. According to the magnetic steel installation sequence, the simulated magnetic steel in a magnetic steel guide assembly is removed, and a magnetic steel to be installed is installed, until the simulated magnetic steel in each magnetic steel installation assembly is completely removed, and each magnetic steel to be installed is completely installed;

[0019] This type of surface mount magnet assembly method uses the positioning and coordination of various tooling to solve the problem of mutual attraction and repulsion of surface mount magnets during installation and positioning. The magnets can be installed smoothly without any attraction and repulsion damage between the magnets. This eliminates the risk of operation and material loss, and avoids the occurrence of poor installation during the mutual repulsion process of the magnets, which affects the performance of the motor.

[0020] To avoid the adverse effect of sudden adsorption of the magnet to the yoke during installation, the magnet and yoke are separated before installation through the magnet guide plate. When the magnet and yoke are in coordination, the hand has been evacuated to a safe position to avoid safety risks. The epoxy glue is directly flattened with the magnet instead of pushing the magnet. The entire assembly method uses the precision of the tooling for positioning, uses non-magnetic materials to prevent adsorption, and uses pressed glue instead of pushed glue to achieve the smooth installation of surface-mounted magnets. The installation process is controllable, and the operation process is simplified to the ordinary assembly process, which reduces the process control points and eliminates the safety risk points. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present drawings or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present drawings. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of an installation structure and method of a permanent magnet rotor surface-mounted magnetic steel;

[0023] Figure 2 It is a partial structural schematic diagram of a permanent magnet rotor surface mounted magnetic steel installation structure and method;

[0024] Figure 3 A schematic diagram of the structure of the installation assembly provided by the present invention;

[0025] Figure 4 This is a structural diagram of the rubber pad provided by the present invention.

[0026] In the figure: 1. rotor; 111. magnet mounting part; 2. magnet guide assembly; 21. simulated magnet; 22. rubber pad; 221. glue coating groove; 23. magnet guide plate; 231. magnet guide groove; 3. mounting assembly; 31. annular mounting clamp; 311. connecting plate; 3111. mounting hole; 32. through hole; 100. magnet to be installed; 4. locking assembly; 41. locking bolt. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0028] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. In addition, it can also be understood that although the efforts made in this development process may be complicated and lengthy, for ordinary technicians in this field related to the content disclosed in this application, some changes in design, manufacturing or production based on the technical content disclosed in this application are just conventional technical means, and should not be understood as insufficient content disclosed in this application.

[0029] However, unnecessary detailed descriptions may be omitted. For example, detailed descriptions of well-known matters and repeated descriptions of substantially the same structures may be omitted. This is to avoid the following description from becoming unnecessarily lengthy and to facilitate understanding by those skilled in the art. In addition, the drawings and the following description are provided to enable those skilled in the art to fully understand the present application and are not intended to limit the subject matter described in the claims.

[0030] See also Figure 1-4 As shown, in the embodiment of the present invention, a permanent magnet rotor surface mounted magnetic steel installation structure and method includes a rotor 1, a magnetic steel guide assembly 2 is arranged above the rotor 1, the magnetic steel guide assembly 2 includes a plurality of simulated magnetic steels 21, the magnetic steel guide assembly 2 is used to install the magnetic steel 100 to be installed, a mounting assembly 3 is arranged at the bottom of the rotor 1, a plurality of locking assemblies 4 are arranged on the mounting assembly 3, and a plurality of magnetic steel installation parts 111 are arranged on the rotor 1. The arrangement of the plurality of simulated magnetic steels 21 in the magnetic steel guide assembly 2 allows the installation process to be pre-installed through the magnetic steel guide assembly 2 first, and accurately positioned Before the formal installation of the magnet, the magnet guide assembly 2 can offset the interference or repulsion of the magnet 100 to be installed, thereby ensuring the smooth progress of the subsequent installation. The method of disassembling the simulated magnets 21 one by one and installing the magnet 100 to be installed can be carried out step by step, and there is no need to remove all the simulated magnets 21 at one time, thus avoiding the risk of mutual repulsion between magnets. The step-by-step operation method ensures the stability and safety of the assembly, avoids the risk of magnet damage or material waste during operation, and avoids the occurrence of poor installation during the mutual repulsion of magnets, which affects the performance of the motor.

[0031] In one embodiment, see Figure 1 and Figure 4 , a plurality of magnetic steel guide grooves 231 are arranged on the magnetic steel guide plate 23, the rubber pad 22 is slidably connected in the magnetic steel guide groove 231, a plurality of simulated magnetic steels 21 are externally sleeved with mounting components 3, a plurality of simulated magnetic steels 21 are attached to the magnetic steel mounting portion 111 on the rotor 1, and the positions are pre-occupied by simulating the position of the magnetic steel 21 before the installation of the magnetic steel 100 to be installed. This pre-occupancy setting avoids the mutual attraction or repulsion between the real magnetic steels during assembly, thereby eliminating the magnetic interference between the magnetic steels, and ensuring the stability and safety of the installation process;

[0032] The rubber pad 22 is arranged above the magnetic steel guide plate 23 and is movably connected to the magnetic steel guide plate 23. The thickness of the glue layer can be controlled and maintained consistent during the installation of the magnetic steel. The gap design of the rubber pad 22 allows the epoxy glue to be evenly distributed on the surface of the magnetic steel installation portion 111. When the magnetic steel 100 to be installed is installed, the rubber pad 22 plays a role in controlling the thickness of the glue layer, ensuring that each piece of magnetic steel can be evenly filled with the glue layer after installation, enhancing the bonding effect, and increasing the firmness and durability of the installation. The magnetic steel guide plate 23 is arranged above the rotor 1, providing a precise guide surface, so that the magnetic steel 100 to be installed can be accurately positioned above the magnetic steel installation portion 111, ensuring the position accuracy during installation. Through this structural design, the magnetic steel will not be offset or tilted during the installation process, making the assembly more precise and improving the overall installation quality;

[0033] The installation component 3 will be mounted on the outside of the simulated magnet 21 to ensure that the simulated magnet 21 does not move during the installation process, and further increase the stability of the guidance and positioning; the whole process is divided into several stages: pre-installing the simulated magnet 21, controlling the glue layer, and gradually disassembling and installing the magnet 100 to be installed. The operator can complete the installation work step by step, which reduces the difficulty of operation and the risk of errors in complex processes. At the same time, this operation mode prevents direct contact between the magnets, reduces the risk of damage caused by magnetic attraction or repulsion, and ensures the safety and reliability of assembly.

[0034] Specifically, the simulated magnetic steel 21 is made of a non-magnetic material.

[0035] Specifically, the non-magnetic material is aluminum alloy 6061, which is a non-magnetic material and will not be affected by the magnetic force of other magnets during the installation process. The existence of the simulated magnet 21 can effectively occupy the space, but because it is non-magnetic, it avoids the mutual attraction or repulsion between the magnets when installing the magnet 100 to be installed, ensuring a stable and smooth installation process. It is suitable for assembly environments with strong magnetic interactions between magnets, reducing the risk of magnet misalignment and damage.

[0036] Specifically, see Figure 1 and Figure 2As shown, a plurality of magnetic steel guide grooves 231 are provided on the magnetic steel guide plate 23, and the rubber pad 22 is slidably connected in the magnetic steel guide groove 231. The magnetic steel guide groove 231 enables the rubber pad 22 to slide in the groove, providing precise vertical and horizontal guidance. This sliding connection method ensures that the magnetic steel 100 to be installed can enter the magnetic steel mounting part 111 according to the established trajectory during the assembly process, thereby achieving high-precision positioning, reducing the offset or incorrect installation, and improving the alignment accuracy of the magnetic steel installation. The rubber pad 22 slides in the magnetic steel guide groove 231 and can slowly guide the magnetic steel 100 to be installed into the magnetic steel mounting part 111, rather than being directly placed on the magnetic steel mounting part 111, avoiding mutual attraction and repulsion interference between the magnetic steel and other magnetic steels during the installation process, making the gradual installation process of the magnetic steel smoother and more reliable, and reducing the operation risk. At the same time, the sliding connection ensures the stability of the rubber pad 22, and there will be no loosening or displacement during the entire assembly process, making the magnetic steel guidance more stable and safe.

[0037] The preferred thickness of the rubber pad 22 is 0.05-0.15 mm. It is also made of a non-magnetic material and is relatively thin, so that a smaller gap can be formed during the installation of the magnetic steel 100 to be installed, thereby facilitating installation.

[0038] Specifically, see Figure 1 and Figure 4 As shown, a glue coating groove 221 is provided on the glue pad 22. During the process of installing the magnetic steel 100, the glue can evenly flow out or squeeze out from the glue coating groove 221 to the surface of the magnetic steel mounting portion 111, thereby avoiding the phenomenon of uneven thickness of the glue layer. The glue coating groove 221 allows the gluing step to be completed quickly before each magnetic steel is installed, thereby reducing repetitive gluing operations and improving installation efficiency. The operator only needs to slide the glue pad 22 to the specified position to complete the gluing and install the magnetic steel, thereby greatly simplifying the assembly process.

[0039] Furthermore, the mounting assembly 3 includes an annular mounting clamp 31, which is sleeved on the bottom of the rotor 1. A plurality of locking assemblies 4 are arranged on the upper circumferential direction of the annular mounting clamp 31. The annular mounting clamp 31 is tightly sleeved on the bottom of the rotor 1, and the entire magnetic steel guide and mounting system is firmly connected to the rotor 1 through the annular structure. The plurality of locking assemblies 4 arranged on the upper circumferential direction of the annular mounting clamp 31 can evenly distribute the locking force in all directions. Each locking assembly 4 can apply precise pressure to balance the force in all directions of the entire system, and avoid structural deviation or stress concentration caused by excessive or insufficient local force. The locking assembly 4 locks the magnetic steel installation position by tightening the clamp, and prevents external vibration or displacement of the magnetic steel due to magnetic force during the installation of the magnetic steel. The arrangement of the annular mounting clamp 31 and the locking assembly 4 enables the installation of the magnetic steel to be completed in sequence and step by step. After installing a certain piece of magnetic steel, the operator can gradually lock the corresponding locking assembly to prevent the displacement of the unfixed magnetic steel.

[0040] See also Figure 1 and Figure 2 As shown, the locking assembly 4 includes two locking bolts 41, and a plurality of through holes 32 are provided on the annular mounting clamp 31. The two locking bolts 41 are movably connected in the plurality of through holes 32, and are used to fix and lock the simulated magnet 21 when not disassembled, and are used to press the magnet 100 to be installed accommodated in the magnet mounting part 111 in the glue coating groove 221 when disassembled, to ensure that the epoxy glue is fully filled and sealed in the gap between the magnet mounting parts 111, and the uniform pressure provided by the two locking bolts 41 further compacts the glue layer, so that the bonding effect of the glue layer is better, the bonding firmness and durability are improved, the influence of external factors on the glue layer is reduced, and the service life of the magnet is extended.

[0041] In one embodiment, see Figure 1 and Figure 2 As shown, connecting plates 311 are provided on both sides of the annular mounting clamp 31, and mounting holes 3111 are provided on the connecting plates 311. The connecting plates 311 are provided on both sides of the annular mounting clamp 31, thereby expanding the force-bearing surface of the clamp and enhancing the rigidity of the overall structure. The connecting plates 311 on both sides reinforce the clamp, making it less likely to deform during the installation of the magnetic steel, thereby effectively improving the stability and bearing capacity of the system and preventing displacement and shaking during the assembly process. The mounting holes 3111 on the connecting plates 311 can be connected to other fixing parts through fasteners such as bolts, providing additional support points for the annular mounting clamp 31. The annular mounting clamp 31 is not only fixed to the rotor 1 through its own structure, but also can achieve more secure support through the mounting holes 3111, effectively preventing loosening or displacement caused by high-speed rotation or external impact.

[0042] In one embodiment, S1.1, the magnetic steel 100 to be installed is installed in sequence, a rubber pad 22 is installed in a magnetic steel guide groove 231 on the upper part of the magnetic steel guide plate 23, the locking assembly 4 is loosened, a simulated magnetic steel 21 is loosened, the simulated magnetic steel 21 is removed, the lower part of the rubber pad 22 is pushed to the empty space after the simulated magnetic steel 21 is removed from the lower part of the rotor 1, and epoxy glue is applied on the surface of the magnetic steel installation part 111;

[0043] S1.2, installing the magnetic steel 100 to be installed in the empty space after the simulated magnetic steel 21 is removed by using the rubber pad 22;

[0044] S1.3, repeat steps S2 and S3 until all the magnets 100 to be installed are installed on each magnet installation part 111;

[0045] S1.4. After the magnetic steels 100 to be installed are installed and fixed on the magnetic steel installation parts 111, the installation assembly 3 is disassembled and the residual glue residue on the surface of each magnetic steel 100 to be installed is cleaned.

[0046] In the specific installation process, a plurality of simulated magnetic steels 21 are installed on the upper part of a plurality of magnetic steel installation parts 111 on the upper part of the rotor 1, and the simulated magnetic steels 21 are locked one by one through a plurality of locking components 4 arranged on the upper part of the annular mounting clamp 31, and the plurality of simulated magnetic steels 21 are pre-assembled and fixed;

[0047] Then, the magnetic steel 100 to be installed is installed in sequence according to the magnetic steel installation sequence, and the rubber pad 22 is installed in a magnetic steel guide groove 231 on the upper part of the magnetic steel guide plate 23, and the locking assembly 4 correspondingly arranged below the magnetic steel guide groove 231 is loosened, and the simulated magnetic steel 21 installed on the magnetic steel installation part 111 is loosened, and the simulated magnetic steel 21 is removed, and the lower part of the rubber pad 22 is pushed to the empty space after the simulated magnetic steel 21 is removed from the lower part of the rotor 1, and epoxy glue is applied to the surface of the magnetic steel installation part 111 in the glue coating groove 221;

[0048] Finally, push the magnet 100 to be installed through the magnet guide groove 231, move down along the height direction of the rubber pad 22 to the empty space after the lower simulated magnet 21 is disassembled, pull out the rubber pad 22, adjust the locking assembly 4 again to press the installed magnet 100 to squeeze the epoxy glue flat, until the gap between the magnet 100 to be installed and the magnet installation part 111 is filled with epoxy glue, and directly fix the magnet 100 to be installed on the magnet installation part 111 after drying;

[0049] Repeat the above operation until all the magnets 100 to be installed are installed on each magnet installation part 111;

[0050] Finally, after the magnets 100 to be installed are installed and fixed on each magnet installation part 111, the installation assembly 3 sleeved on the surface of the rotor 1 is removed, and the residual glue residue on the surface of the installed magnets is cleaned. Steps S1.2 to S1.4 replace the simulated magnets 21 one by one and install the magnets 100 to be installed, so as to realize step-by-step operation, make the installation process more controllable, and ensure that each magnet can be accurately and smoothly installed in the specified position. The step-by-step installation method can effectively avoid the position deviation caused by the attraction or repulsion of the magnets, and improve the overall accuracy and reliability of the installation. ;

[0051] During the pre-assembly process of the simulated magnetic steel 21, all simulated magnetic steels 21 are fixed by the annular mounting clamp 31 and the locking assembly 4, so that the entire system forms a preliminary structure, ensuring that during the subsequent installation process of the magnetic steel 100 to be installed, the rotor 1 and the annular mounting clamp 31 remain stable, avoiding vibration and displacement caused by attraction or repulsion during the installation of the magnetic steel, and the glue coating groove 221 provides a uniform epoxy glue layer for the magnetic steel 100 to be installed, and squeezes it flat each time the magnetic steel is installed to ensure the uniformity of the glue layer. This method avoids problems such as uneven glue and bubbles in traditional installation, ensures the bonding strength and stability of the magnetic steel and the installation part, and improves the bonding effect and service life. The installation position of each magnetic steel is protected by the early occupation of the simulated magnetic steel 21, which effectively avoids damage caused by mutual attraction or repulsion of the magnetic steel during the installation process. At the same time, step-by-step installation and precise gluing also reduce glue waste and glue residue accumulation, making the use of materials more efficient. By disassembling the installation assembly 3 and cleaning the residual glue residue, the surface of the magnetic steel is ensured to be clean. Step method Through the combined design of pre-assembly, step-by-step installation, precise gluing and locking components 4, efficient and safe installation of magnetic steel is achieved.

[0052] In addition, when the locking bolt 41 is tightened, a correction torque of 5 N.m is required to prevent the tightening force from being too large and crushing the magnetic steel guide plate 23. A magnetic steel guide groove 231 is provided on the magnetic steel guide plate 23 for passing the magnetic steel. The magnetic steel guide groove 231 needs to be 0.1-0.15 mm larger than the maximum value of the installed magnetic steel, so that the magnetic steel 100 to be installed can pass safely and have a limiting effect.

[0053] It should be noted that the present application is not limited to the above-mentioned embodiments. The above-mentioned embodiments are only examples, and the embodiments having the same structure as the technical idea and exerting the same effect within the scope of the technical solution of the present application are all included in the technical scope of the present application. In addition, without departing from the scope of the main purpose of the present application, various modifications that can be thought of by those skilled in the art to the embodiments and other methods of combining some of the constituent elements in the embodiments are also included in the scope of the present application.

Claims

1. A permanent magnet rotor surface mounted magnetic steel installation structure, comprising a rotor (1), characterized in that: A magnetic steel guide assembly (2) is arranged above the rotor (1), the magnetic steel guide assembly (2) comprises a plurality of simulated magnetic steels (21), the magnetic steel guide assembly (2) is used to install the magnetic steel (100) to be installed, a mounting assembly (3) is arranged at the bottom of the rotor (1), a plurality of locking assemblies (4) are arranged on the mounting assembly (3), and a plurality of magnetic steel mounting parts (111) are arranged on the rotor (1).

2. The installation structure of a permanent magnet rotor surface-mounted magnetic steel according to claim 1 is characterized in that: The magnetic steel guide assembly (2) further comprises a rubber pad (22) and a magnetic steel guide plate (23); the magnetic steel guide plate (23) is arranged above the rotor (1); and the upper part of the magnetic steel guide plate (23) is movably connected to the rubber pad (22).

3. The installation structure of a permanent magnet rotor surface mounted magnetic steel according to claim 2, characterized in that: The simulated magnetic steel (21) is made of a non-magnetic material.

4. The installation structure of a permanent magnet rotor surface mounted magnetic steel according to claim 3, characterized in that: The non-magnetic conductive material is aluminum alloy 6061.

5. The installation structure of a permanent magnet rotor surface mounted magnetic steel according to claim 2, characterized in that: The magnetic steel guide plate (23) is provided with a plurality of magnetic steel guide grooves (231), and the rubber pad (22) is slidably connected in the magnetic steel guide grooves (231).

6. The installation structure of a permanent magnet rotor surface mounted magnetic steel according to claim 2, characterized in that: The rubber pad plate (22) is provided with a glue coating groove (221).

7. The installation structure of a permanent magnet rotor surface mounted magnetic steel according to claim 2, characterized in that: The mounting assembly (3) comprises an annular mounting clamp (31), the annular mounting clamp (31) being sleeved on the bottom of the rotor (1), a plurality of locking assemblies (4) being arranged in a circumferential direction on the upper part of the annular mounting clamp (31), the plurality of locking assemblies (4) being arranged in a one-to-one correspondence with a plurality of magnetic steel mounting parts (111).

8. The permanent magnet rotor surface mounted magnetic steel installation structure according to claim 7, characterized in that: The locking assembly (4) comprises two locking bolts (41), the annular mounting clamp (31) is provided with a plurality of through holes (32), and the two locking bolts (41) are movably connected in the plurality of through holes (32).

9. The method for installing a permanent magnet rotor surface mounted magnetic steel installation structure according to claims 5-8, characterized in that: The steps include: S1. Replace the simulated magnetic steel (21) with the magnetic steel to be installed (100).

10. The method for installing a permanent magnet rotor surface mounted magnetic steel installation structure according to claim 9, characterized in that: It also includes the following steps, S1.

1. Install the magnetic steel (100) to be installed in sequence, install the rubber pad (22) in a magnetic steel guide groove (231) on the upper part of the magnetic steel guide plate (23), loosen the locking assembly (4), loosen a simulated magnetic steel (21), remove the simulated magnetic steel (21), push the lower part of the rubber pad (22) to the empty space after the simulated magnetic steel (21) is removed from the lower part of the rotor (1), and apply epoxy glue on the surface of the magnetic steel installation part (111); S1.2, installing the magnetic steel (100) to be installed in the empty space after the simulated magnetic steel (21) is removed by using the rubber pad (22); S1.3, repeating steps S2 and S3 until all the magnetic steels (100) to be installed are installed on each magnetic steel installation part (111); S1.

4. After the magnetic steels (100) to be installed are installed and fixed on the magnetic steel installation parts (111), the installation assembly (3) is disassembled and the residual glue residue on the surface of each magnetic steel (100) to be installed is cleaned.

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