Rotor assembly tooling

Abstract

The present invention provides a rotor assembly tool, which is configured to assemble multiple first magnets and multiple second magnets into a flywheel. The rotor assembly tool includes a mounting mechanism and a pressing mechanism, wherein the mounting mechanism includes a mounting seat, a lifting member and a guide member, and the mounting seat is provided with a mounting cavity; the lifting member is arranged on the mounting seat and can move axially along the guide member; the lifting member includes multiple first mounting platforms spaced apart from each other, the first mounting platforms can be equipped with first magnets, and a mounting hole is formed between two adjacent first mounting platforms; the guide member is arranged on the mounting seat and includes multiple second mounting platforms spaced apart from each other; the second mounting platforms can be equipped with second magnets, and the multiple second mounting platforms are adapted to the multiple mounting holes one by one when the lifting member moves axially along the guide member; the pressing mechanism can abut against the flywheel, and the flywheel abuts against the multiple first mounting platforms to press the multiple first magnets and the multiple second magnets into the flywheel.

Description

Technical Field

[0001] The invention belongs to the technical field of rotor assembly, and in particular relates to a rotor assembly tool. Background Art

[0002] The rotor is a crucial component within a motor, driving the output shaft to rotate and thus achieving the motor's transmission function. The rotor of a flywheel motor includes a flywheel and multiple magnets disposed within the flywheel. When assembling this type of rotor, it is typically necessary to bond the multiple magnets to the flywheel using an assembly jig. The bonding process involves applying glue to the surfaces of the multiple magnets and / or the corresponding walls of the flywheel, then using a jig to secure the multiple magnets within the flywheel. The entire assembly, consisting of the flywheel, multiple magnets, and jig, is then placed in a static, pressure-maintaining process to allow the glue to solidify, thereby firmly bonding the magnets to the inner wall of the flywheel.

[0003] However, since the multiple magnets may interact with each other, it is not convenient to use a commonly used assembly jig to assemble the multiple magnets to appropriate positions in the flywheel. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a rotor assembly tool, aiming to solve the technical problem of how to conveniently assemble multiple first magnets and multiple second magnets into a flywheel.

[0005] To achieve the above objectives, the technical solution adopted in this application is to provide a rotor assembly tool configured to assemble a plurality of first magnets and a plurality of second magnets into a flywheel, the rotor assembly tool comprising:

[0006] The mounting mechanism includes a mounting seat, a lifting member, and a guide member, wherein the mounting seat is provided with a mounting cavity; the lifting member is disposed in the mounting cavity and is movable along the axial direction of the guide member; the lifting member includes a plurality of first mounting platforms spaced apart from each other, each of which is capable of mounting a first magnet, with a mounting hole formed between two adjacent first mounting platforms; the guide member is disposed on the mounting seat and includes a plurality of second mounting platforms spaced apart from each other; the second mounting platforms are capable of mounting a second magnet, and the plurality of second mounting platforms are adapted to the plurality of mounting holes in a one-to-one correspondence when the lifting member moves along the axial direction of the guide member; and

[0007] A pressing mechanism is configured to abut against the flywheel, wherein the flywheel abuts against the first mounting platforms to press the first magnets and the second magnets into the flywheel.

[0008] In one embodiment, the height of the first mounting platform is equal to the height of the second mounting platform.

[0009] In one embodiment, the rotor assembly tool further includes an elastic support member, which is disposed in the mounting cavity; one end of the elastic support member abuts against the lifting member to provide a force for the lifting member to move axially along the guide member.

[0010] In one embodiment, the guide member includes a connected main body and a supporting bottom, the supporting bottom and the main body are both arranged in the mounting cavity, a plurality of second mounting platforms are protruded on the side of the main body away from the supporting bottom, the supporting bottom extends radially along the main body, and the supporting bottom contacts the bottom wall of the mounting cavity; the elastic support member is arranged around the main body and abuts between the supporting bottom and the lifting member.

[0011] In one embodiment, the lifting member includes a first lifting part and a second lifting part, the first lifting part is protruded from the second lifting part, the inner diameter of the first lifting part is smaller than the inner diameter of the second lifting part, the outer diameter of the first lifting part is smaller than the outer diameter of the second lifting part, and multiple first mounting platforms are all arranged on the first lifting part, the elastic support member is abutted between the support bottom and the first lifting part, and the second lifting part selectively abuts or separates from the mounting seat.

[0012] In one embodiment, the mounting seat includes a base plate and a cover plate; the cover plate is arranged on the base plate and cooperates with the base plate to form the mounting cavity; the cover plate is provided with a stop boss, and the stop boss is provided with an opening, and the opening is connected to the mounting cavity; the stop boss is arranged on the moving path of the lifting member and is exposed in the opening.

[0013] In one embodiment, the rotor assembly tool further includes an indicator structure; the indicator structure is disposed on the mounting seat and is configured to mark the magnetic pole orientation of the first magnet and / or the second magnet.

[0014] In one embodiment, the indicating structure is arranged around the lifting member, and the indicating structure is provided with a magnetic pole mark, and the magnetic pole mark corresponds to the position of the notch opened in the flywheel.

[0015] In one embodiment, the pressing mechanism includes a bracket and a pushing assembly, wherein the bracket is arranged on the mounting seat; the pushing assembly is arranged on the bracket and can move toward the mounting seat to press against the flywheel.

[0016] In one embodiment, the pushing assembly includes a pushing member and a pressure head, the pushing member is mounted on the bracket, and the pressure head is provided at one end of the pushing member facing the mounting seat and is capable of abutting against the flywheel.

[0017] Compared with the prior art, the rotor assembly tool provided by the present application includes a mounting mechanism and a pressing mechanism, wherein the mounting mechanism includes a mounting seat, a lifting member and a guide member, the mounting seat is provided with a mounting cavity; the lifting member is arranged on the mounting seat and can move along the axial direction of the guide member; the lifting member includes a plurality of first mounting platforms spaced apart from each other, the first mounting platforms can be equipped with a first magnet, and a mounting hole is formed between two adjacent first mounting platforms; the guide member is arranged on the mounting seat and includes a plurality of second mounting platforms spaced apart from each other; the second mounting platforms can be equipped with a second magnet, and the plurality of second mounting platforms correspond one to one with the plurality of mounting holes when the lifting member moves along the axial direction of the guide member. Matching; the pressing mechanism can be pressed against the flywheel, and the flywheel is pressed against the multiple first mounting platforms to press the multiple first magnets and the multiple second magnets into the flywheel. In this way, the pressing mechanism pushes the flywheel, so that the flywheel pushes the multiple first mounting platforms, and then the flywheel, the lifting member and the multiple first magnets slide synchronously along the axial direction of the guide member; during the sliding process, each second mounting platform is respectively matched with the corresponding mounting hole, and the multiple second mounting platforms remain fixed; thereby, the multiple second magnets located on the second mounting platform remain fixed, and the multiple first magnets and the flywheel are moved with the lifting member until the multiple second magnets are all accommodated in the flywheel, thereby completing the assembly of the rotor. As described above, the rotor assembly work can be completed by only making the pressing mechanism push the flywheel to the appropriate position. The steps are simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 A schematic structural diagram of the rotor assembly tooling provided in an embodiment of the present application.

[0020] Figure 2 for Figure 1 An exploded view of the rotor assembly tooling is shown.

[0021] Figure 3 for Figure 1 The front view of the rotor assembly tool is shown.

[0022] Figure 4 for Figure 3 Cross-sectional view along the AA direction.

[0023] Figure 5 for Figure 4 A partial enlarged view at point B.

[0024] Figure 6This is a schematic diagram of the structure of the flywheel provided in this application.

[0025] Figure 7 for Figure 1 The schematic diagram of the structure of the guide part of the rotor assembly tool is shown.

[0026] Figure 8 for Figure 1 The schematic diagram of the structure of the installation mechanism of the rotor assembly tool is shown.

[0027] Figure 9 for Figure 1 A top view of the mounting mechanism of the rotor assembly tool is shown.

[0028] Figure 10 for Figure 6 Cross-sectional view along CC direction.

[0029] Figure 11 for Figure 1 The schematic structural diagram of the pressing mechanism of the rotor assembly tooling is shown.

[0030] Among them, the reference numerals in the figures are:

[0031] 100, rotor assembly tool; 10, mounting mechanism; 11, mounting seat; 111, cover plate; 1111, stop boss; 1112, opening; 112, bottom plate; 113, mounting cavity; 12, lifting member; 121, first lifting portion; 1211, first mounting platform; 1212, mounting hole; 122, second lifting portion; 123, annular groove; 124, guide hole; H1, height of first mounting platform; 13, guide member; 131, second mounting platform; 132, main body; 13 3. Support bottom; 134. Guide column; H2. Height of the second mounting platform; 14. Elastic support member; 15. Indication structure; 151. Magnetic pole identification; 20. Pressing mechanism; 21. Bracket; 211. Nut; 212. Threaded hole; 22. Pushing assembly; 221. Pushing member; 222. Pressing head; 30. Rotor assembly; 31. Flywheel; 311. Accommodating chamber; 312. Stop cylinder; 313. Notch; 32. Ring magnet; 321. First magnet; 322. Second magnet. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit this application.

[0033] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The terms "upper", "lower", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of description and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "first" and "second" are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0034] See also Figures 1 to 4 An embodiment of the present application provides a rotor assembly tool 100 configured to assemble a plurality of first magnets 321 and a plurality of second magnets 322 into a flywheel 31 .

[0035] See also Figure 2 、 Figure 4 and Figure 5 The rotor assembly tool 100 includes a mounting mechanism 10 and a pressing mechanism 20. The mounting mechanism 10 includes a mounting seat 11, a lifting member 12, and a guide member 13. The mounting seat 11 is provided with a mounting cavity 113. The lifting member 12 is disposed on the mounting seat 11 and is movable along the axial direction of the guide member 13. The lifting member 12 includes a plurality of first mounting platforms 1211 spaced apart from each other. The first mounting platforms 1211 are capable of mounting first magnets 321, with a mounting hole 1212 formed between two adjacent first mounting platforms 1211. The guide member 13 is disposed within the mounting cavity 113 and includes a plurality of second mounting platforms 131 spaced apart from each other. The second mounting platforms 131 are capable of mounting second magnets 322. When the lifting member 12 moves along the axial direction of the guide member 13, the plurality of second mounting platforms 131 are adapted to the plurality of mounting holes 1212 in a one-to-one correspondence. The pressing mechanism 20 can abut against the flywheel 31 , and the flywheel 31 abuts against the plurality of first mounting platforms 1211 , so as to press the plurality of first magnets 321 and the plurality of second magnets 322 into the flywheel 31 .

[0036] The pressing mechanism 20 pushes against the flywheel 31, causing the flywheel 31 to push against the multiple first mounting platforms 1211, thereby causing the flywheel 31, the lifting member 12, and the multiple first magnets 321 to slide synchronously along the axial direction of the guide member 13. During the sliding process, each second mounting platform 131 is respectively engaged with the corresponding mounting hole 1212, and the multiple second mounting platforms 131 remain fixed; thereby, the multiple second magnets 322 located on the second mounting platforms 131 remain fixed, and the multiple first magnets 321 and the flywheel 31 are moved along with the lifting member 12 until the multiple second magnets 322 are all accommodated in the flywheel 31, thereby completing the assembly of the rotor. As described above, the rotor assembly work can be completed by only having the pressing mechanism 20 push the flywheel 31 to the appropriate position. The steps are simple and easy to operate.

[0037] Furthermore, through the aforementioned method, regardless of whether the first magnet 321 and the second magnet 322 attract or repel each other, they are both pressed into the accommodating cavity 311 of the flywheel 31. Specifically, when the first magnet 321 and the second magnet 322 attract each other, their corresponding sidewalls can adhere to each other and slide along each other's sidewalls. After the first magnet 321 is press-fitted into the flywheel 31, the second magnet 322 smoothly slides into the flywheel 31 along the corresponding sidewalls of the second magnet 322 and the corresponding sidewalls of the flywheel 31 during the downward pressing of the flywheel 31. When the first magnet 321 and the second magnet 322 repel each other, the first magnet 321, which has been installed in the flywheel 31 first, repels the second magnet 322 during the downward pressing process. Simultaneously, the first magnet 321 is subjected to the reaction forces of the corresponding second mounting platform 131, the groove wall of the corresponding mounting hole 1212, and the inner sidewall of the flywheel 31. This prevents the second magnet 322 from shifting horizontally, thereby smoothly installing it into the flywheel 31.

[0038] It can be understood that after the multiple first magnets 321 and the multiple second magnets 322 are pressed into the corresponding positions in the flywheel 31 by the aforementioned installation mechanism 10 and the pressing mechanism 20, the pressing mechanism 20 is kept in a pressed state, so that the glue coated on any first magnet 321, any second magnet 322 and the flywheel 31 can be solidified in a static state to ensure that the multiple first magnets 321, the multiple second magnets 322 and the flywheel 31 are stably connected.

[0039] See also Figure 2 In this embodiment, the plurality of first mounting platforms 1211 are arranged in a circular shape; accordingly, the plurality of mounting holes 1212 are arranged in a circular shape, and the plurality of second mounting platforms 131 are arranged in a circular shape.

[0040] It is understandable that multiple first magnets 321 and multiple second magnets 322 can be placed alternately in sequence, and a regular annular magnet 32 ​​can be gradually formed during the press-fitting process. Optionally, the second magnet 322 is a radial magnet and the first magnet 321 is an axial magnet; or, the second magnet 322 is an axial magnet and the first magnet 321 is a radial magnet. It is understandable that alternating the first magnet 321 and the second magnet 322, and setting the magnetic pole orientation and placement position of the two according to the arrangement of the Halbach array, can maximize the magnetic field strength of the annular magnet 32. Among them, the radial magnet is a magnet that is magnetized along the radial direction of the annular magnet 32, and the axial magnet refers to a magnet that is magnetized along the axial direction of the annular magnet 32. It will be appreciated that in this embodiment, during the downward pressing of the flywheel 31, the first magnet 321 and the second magnet 322 pre-arranged according to the Halbach array form an annular magnet 32, which is press-fitted into the flywheel 31 to form the rotor assembly 30. This allows for smooth press-fitting while maximizing the magnetic field strength of the annular magnet 32. It will be appreciated that each second magnet 322 is limited by the corresponding mounting hole 1212 and the corresponding second mounting platform 131, thereby enabling each second magnet 322 to be smoothly press-fitted into the flywheel 31 regardless of whether it is attracted or repelled by the first magnet 321.

[0041] See also Figure 2 and Figure 6 Optionally, in this embodiment, the first magnet 321 and the second magnet 322 are both sector-shaped magnets, and the flywheel 31 has an annular receiving cavity 311 for accommodating the plurality of second magnets 322 and the plurality of first magnets 321. The receiving cavity 311 is adapted to accommodate the annular magnet formed by the plurality of second magnets 322 and the plurality of first magnets 321. A stop cylinder 312 is also provided in the flywheel 31 and is coaxial with the annular receiving cavity 311. It is understood that, as the flywheel 31 is sequentially covered with the exterior of the first magnet 321 and the second magnet 322, the plurality of first magnets 321 and the plurality of second magnets 322 are less likely to deviate horizontally due to the limiting action of the stop cylinder 312, and are thus accurately assembled into the annular receiving cavity 311.

[0042] See also Figure 2 、 Figure 7 and Figure 8 Optionally, in this embodiment, four first mounting platforms 1211 are provided at intervals, and accordingly, four mounting holes 1212 are formed, and four second mounting platforms 131 are provided. It is understood that in this embodiment, the mounting mechanism 10 and the pressing mechanism 20 can smoothly press-fit the four first magnets 321 and the four second magnets 322 into the corresponding flywheel 31.

[0043] See also Figure 2 、 Figure 7and Figure 9 Optionally, in this embodiment, the multiple first mounting platforms 1211 are arranged at equal intervals; accordingly, the multiple mounting holes 1212 are formed at equal intervals, and the multiple second mounting platforms 131 are arranged at equal intervals. It will be appreciated that this embodiment facilitates the uniform arrangement of the multiple first magnets 321 and the multiple second magnets 322, thereby improving the production quality of the assembled rotor. Furthermore, it facilitates the rational design of the dimensions of the lifting member 12 and the mounting holes 1212, making the device more compact and reducing material consumption to save production costs.

[0044] In this embodiment, the cross-sectional area of ​​the first mounting platform 1211 is approximately equal to the cross-sectional area of ​​the mounting hole 1212. It is understood that the mounting mechanism 10 in this embodiment facilitates the placement and installation of first magnets 321 and second magnets 322 of identical shape and size. Any mounting hole 1212 can accommodate a second magnet 322 disposed on the corresponding second mounting platform 131, allowing the corresponding second magnet 322 to slide along the mounting hole 1212. The groove wall of the mounting hole 1212 horizontally limits the second magnet 322 partially accommodated therein, thereby ensuring smooth press-fitting. Furthermore, the press-fitting mechanism in this embodiment is less likely to produce a large installation gap when installing the first magnets 321 and second magnets 322 of identical shape and size, thereby making the internal connections of the rotor assembly tool 100 more compact and saving the production operation space occupied by the entire device.

[0045] See also Figure 2 、 Figure 5 and Figure 10 Optionally, in one embodiment, the height H1 of the first mounting platform 1211 is equal to the height H2 of the second mounting platform 131. It is understandable that the height H1 of the first mounting platform 1211 and the height H2 of the second mounting platform 131 are both based on the axial direction of the guide member 13 as a reference direction; taking the vertical placement as an example, when the bottom of the first mounting platform 1211 slides to be flush with the bottom of the second mounting platform 131, it stops sliding. At this time, the first mounting platform 1211 is supported by the guide member 13, so that the first magnet 321 and the second magnet 322 are both pressed between the flywheel 31 and the guide member 13, ensuring sufficient pressing force and ensuring that the entire rotor has good flatness after assembly.

[0046] Because the height H1 of the first mounting platform 1211 is equal to the height H2 of the second mounting platform 131, the upper surface of the first mounting platform 1211 is flush with the upper surface of the second mounting platform 131, thereby aligning the first magnets 321 and the second magnets 322, respectively disposed on the upper surfaces of the first mounting platform 1211 and the second mounting platform 131. Therefore, the rotor assembly tool 100 of this embodiment not only allows the plurality of first magnets 321 and the plurality of second magnets 322 to be press-fitted into the flywheel 31, but also allows the first magnets 321 and the second magnets 322 of uniform thickness to be press-fitted onto the same plane, thereby improving the assembly accuracy between the plurality of first magnets 321, the plurality of second magnets 322, and the flywheel 31.

[0047] In this embodiment, after the plurality of first magnets 321 and the plurality of second magnets 322 are installed on the same plane, the lifting member 12 stops sliding; thereby helping to prevent the second magnets provided on the second mounting platform 131 from continuing to squeeze the flywheel 31 after being pressed into place in the flywheel 31, causing the glue applied thereto to spread to the surrounding area and adversely affecting the bonding; it also helps to prevent the flywheel 31 from being deformed due to being squeezed by the second magnets 322. By the aforementioned method, the plurality of first magnets 321 and the plurality of second magnets 322 are in the same horizontal position after being pressed into place, which also helps to ensure the consistency of the thickness of the glue layer; thereafter, through the continuous abutment action of the pressing mechanism 20, they are pressed against the outside of the plurality of first magnets 321 and the plurality of second magnets 322, and it also ensures that the glue can fully exert its bonding strength.

[0048] In one embodiment, the height H1 of the first mounting platform 1211 is less than the height H2 of the second mounting platform 131. It is understood that the first mounting platform 1211 slides along the sidewall of the second mounting platform 131. If the height H1 of the first mounting platform 1211 is less than the height H2 of the second mounting platform 131, sufficient sliding space can be provided for the lifting member 12. In this case, appropriate elastic limiting structures or other structures can be provided on the sidewall of the second mounting platform 131 to prevent the lifting member 12 from sliding further.

[0049] In this embodiment, the rotor assembly tool 100 further includes an elastic support member 14 having an elastic restoring force. The elastic support member 14 is disposed in the mounting cavity 113, and one end of the elastic support member 14 abuts against the lifting member 12 to provide a force for the lifting member 12 to move axially along the guide member 13. It is understood that in this embodiment, in the initial state, the lifting member 12 can be fixed at a predetermined position in the mounting cavity 113 with the assistance of the elastic support member 14. When the pressing mechanism 20 pushes against the flywheel 31 and thereby squeezes the lifting member 12, the elastic support member 14 generates elastic deformation to enable the lifting member 12 to slide along the guide member 13. When the pressing mechanism 20 stops pushing, the elastic support member 14 remains in the deformed state. When the pressing mechanism 20 resets and withdraws, the elastic support member 14 resets and drives the lifting member 12 to slide to the predetermined position in its initial state.

[0050] Please continue reading Figure 2 、 Figure 4 and Figure 5 Optionally, in this embodiment, the guide member 13 includes a connected main body 132 and a supporting bottom 133, the supporting bottom 133 and the main body 132 are both arranged in the installation cavity 113, and a plurality of second mounting platforms 131 are protruded on the side of the main body 132 away from the supporting bottom 133, the supporting bottom 133 extends radially along the main body 132, and the supporting bottom 133 contacts the bottom wall of the installation cavity 113; the elastic support member 14 is arranged around the main body 132, and abuts between the supporting bottom 133 and the lifting member 12, thereby realizing the fixation and sliding of the lifting member 12.

[0051] It is understood that the main body 132 can be used to connect and fix multiple second mounting platforms 131, and arrange the multiple second mounting platforms 131 in one of the aforementioned ways. The support bottom 133 can be used to install the guide member 13 into the mounting cavity 113 and provide support for the main body 132 and the multiple second mounting platforms 131. In addition, the radially outward protruding portion of the support bottom 133 along the main body 132 can also be used to place or connect the elastic support member 14, so that the corresponding portion of the elastic support member 14 is fixedly set, thereby allowing the lifting member 12 to slide during the elastic deformation process of the elastic support member 14, and providing support and reset for the lifting member 12.

[0052] In this embodiment, the elastic support member 14 is a compression spring, which is sleeved outside the main body 132, and whose two ends respectively abut the support bottom 133 and the lifting member 12. In other embodiments, the elastic support member 14 can also be an elastic structure made of rubber or other elastic materials.

[0053] See also Figure 2 、 Figure 8 and Figure 10Optionally, the guide member 13 further includes a guide post 134, which is disposed between the annular assembly enclosed by the plurality of second mounting platforms 131; the lifting member 12 is provided with a guide hole 124 for the guide post 134 to pass through, and the plurality of mounting holes 1212 are arranged along the circumference of the guide hole 124. It is understood that after the press-fitting is completed, the plurality of first magnets 321 and the plurality of second magnets 322 are connected to form the annular magnet 32, and the guide post 134 can be sequentially passed through the interior of the annular magnet 32, the guide hole 124, and the hole opened in the center of the flywheel 31, so that the flywheel 31 and the annular magnet 32 ​​maintain center alignment, thereby ensuring the smooth progress of the press-fitting work and the quality of the rotor assembly 30 that has been press-fitted and solidified.

[0054] Optionally, the lifting member 12 includes a first lifting portion 121 and a second lifting portion 122, wherein the first lifting portion 121 protrudes from the second lifting portion 122, the inner diameter of the first lifting portion 121 is smaller than the inner diameter of the second lifting portion 122, and the outer diameter of the first lifting portion 121 is smaller than the outer diameter of the second lifting portion 122. A plurality of first mounting platforms 1211 are provided on the first lifting portion 121, the elastic support member 14 abuts between the support bottom 133 and the first lifting portion 121, and the second lifting portion 122 selectively abuts against or separates from the mounting seat 11. It is understood that the interiors of the first lifting portion 121 and the second lifting portion 122 are connected to allow the corresponding parts of the guide member 13 to pass through. The inner diameter of the first lifting portion 121 is smaller than the inner diameter of the second lifting portion 122, so that the first lifting portion 121 partially protrudes inward relative to the second lifting portion 122 to abut against the elastic support member 14. The outer diameter of the first lifting portion 121 is smaller than the outer diameter of the second lifting portion 122, so that the second lifting portion 122 protrudes outward relative to the first lifting portion 121, and forms an annular groove 123 around the outer circumference of the first lifting portion 121; when the lifting member 12 is reset under the action of the elastic support member 14, the annular groove 123 cooperates with the corresponding part of the mounting seat 11, thereby limiting the lifting member 12 from continuing to move to prevent it from sliding out of the mounting cavity 113.

[0055] See also Figure 4 、 Figure 5 and Figure 8The mounting seat 11 includes a base plate 112 and a cover plate 111; the cover plate 111 is arranged on the base plate 112 and cooperates with the base plate 112 to form a mounting cavity 113; the cover plate 111 is provided with a stop boss 1111, and the stop boss 1111 is provided with an opening 1112, and the opening 1112 is connected to the mounting cavity 113; the stop boss 1111 is arranged on the moving path of the lifting member 12 and is exposed in the opening 1112. Among them, the cover plate 111 and the base plate 112 can be stacked so that part of the cover plate 111 is recessed in the direction away from the base plate 112 to form a partial cavity of the installation cavity 113, and a groove or hole is opened at the corresponding part of the base plate 112 to form another partial cavity of the installation cavity 113; after the cover plate 111 and the base plate 112 are connected, the partial cavities respectively located on the cover plate 111 and the base plate 112 form a complete installation cavity 113 for the installation of the lifting member 12, the guide member 13 and the elastic support member 14.

[0056] The stop boss 1111 is provided on the moving path of the lifting member 12, so that the lifting member 12 can abut against the corresponding part of the stop boss 1111 during the movement, thereby limiting the lifting member 12 from continuing to move and preventing the lifting member 12 from sliding out of the installation cavity 113, thereby ensuring that the next press-fitting and pressure-maintaining work can be carried out smoothly. In addition, the stop boss 1111 is provided with an opening 1112 connected to the installation cavity 113, so that the multiple first mounting platforms 1211 on the lifting member 12 can be exposed to the installation cavity 113 through the opening 1112, so as to accommodate the multiple first magnets 321 and the flywheel 31, thereby completing the assembly of the multiple first magnets 321, the multiple second magnets 322 and the flywheel 31 in the aforementioned manner.

[0057] See also Figure 2 In this embodiment, an annular groove 123 formed on the outer periphery of the first lifting portion 121 is adapted to fit within the stop boss 1111. It will be appreciated that, in this embodiment, after the rotor assembly tool 100 is assembled and pressure maintained, the pressing mechanism 20 resets and disengages from the flywheel 31. The elastic support member 14 rebounds and drives the lifting member 12 back to its original position. After the lifting member 12 slides a predetermined distance, the stop boss 1111 is received within the annular groove 123 and restricts further upward movement of the lifting member 12, thereby maintaining the lifting member 12 in this position. This approach effectively prevents the lifting member 12 from sliding out of the mounting cavity 113, thereby preventing damage to the device and ensuring smooth assembly during the next step.

[0058] See also Figure 1 and Figure 2, the rotor assembly tool 100 also includes an indication structure 15; the indication structure 15 is arranged on the mounting seat 11 and is configured to mark the magnetic pole orientation of the first magnet 321 and / or the second magnet 322. It is understandable that the indication structure 15 can be used to mark the magnetic pole orientation of any second magnet 322 and / or the first magnet 321, so that it is arranged in sequence with the second magnet 322 and the first magnet 321 according to the arrangement of the Halbach array, thereby maximizing the magnetic field strength of the annular magnet. Among them, the indication structure 15 can be a plate-like structure with a through hole, which accommodates the cover plate 111 in the through hole. It is understandable that the indication structure 15 can be integrally formed with the cover plate 111 or separately provided. Optionally, in this embodiment, the indication structure 15 and the cover plate 111 are integrally formed.

[0059] The indicator structure 15 is arranged around the lifting member 12, and the indicator structure 15 is provided with a magnetic pole mark 151, and the magnetic pole mark 151 corresponds to the position of the notch 313 provided on the flywheel 31. It can be understood that the flywheel 31 is provided with a notch 313, and the flywheel 31 can be accurately positioned by aligning the notch 313 with the magnetic attraction mark; the magnetic pole mark 151 itself can also indicate the magnetic pole orientation of the first magnet 321 and / or the second magnet 322 at the corresponding position, and the magnetic pole orientation of the remaining first magnets 321 and second magnets 322 can be determined one by one according to the arrangement of the Halbach array. Through the above-mentioned method, multiple first magnets 321, multiple second magnets 322 and the flywheel 31 can be accurately positioned, thereby ensuring the accuracy of assembly on the basis of completing the assembly. Optionally, the indicator structure 15 is provided with an annular indicator groove coaxial with the cylindrical mounting cavity 113, and the magnetic pole mark 151 is arranged in the indicator groove.

[0060] See also Figure 1 、 Figure 2 and Figure 11In this embodiment, the pressing mechanism 20 includes a bracket 21 and a pushing assembly 22. The bracket 21 is disposed on the mounting seat 11. The pushing assembly 22 is disposed on the bracket 21 and is movable toward the mounting seat 11 to press against the flywheel 31. It is understood that the bracket 21 can be used to connect the pushing assembly 22 and allow the pushing assembly 22 to move to depress the flywheel 31. Specifically, during the assembly process, the corresponding portion of the pushing assembly 22 pushes against the flywheel 31, thereby squeezing the lifting member 12, and causing the flywheel 31 and the plurality of first magnets 321 to move with the lifting member 12, thereby accommodating the plurality of second magnets 322 into the flywheel 31 and completing the assembly. Subsequently, the pressure holding process can be entered, and the corresponding portion of the pushing assembly 22 remains in a position pressed against the flywheel 31, so that the plurality of first magnets 321 and the plurality of second magnets 322 can be pressed tightly against appropriate positions within the flywheel 31. It is understood that by maintaining the plurality of first magnets 321, the plurality of second magnets 322, and the flywheel 31 in the assembled position after assembly and placing them in a static state, pressure holding and curing can be achieved. During the pressure holding and curing process, the pressing mechanism 20 can be used to press them tightly without manual intervention, thereby simplifying the operating steps of the pressing, pressure holding, and curing process and saving labor costs. In addition, since the pressure holding process does not require manual intervention, it is also convenient to place the assembled rotor assembly tool 100 as a whole in an oven or other equipment for heating. At this time, the pressing mechanism 20 is maintained in the assembled position to press the plurality of first magnets 321, the plurality of second magnets 322, and the flywheel 31, so that the glue applied to the plurality of second magnets 322, the plurality of first magnets 321, and the flywheel 31 can be cured in a static state to stably connect the aforementioned structures.

[0061] The pushing assembly 22 includes a pushing member 221 and a pressing head 222. The pushing member 221 is mounted on the bracket 21. The pressing head 222 is located at the end of the pushing member 221 facing the mounting seat 11 and is capable of abutting against the flywheel 31. It is understood that the bracket 21 has a portion directly opposite the lifting member 12, and one end of the pushing member 221 is mounted at this portion to press against the flywheel 31. It is understood that the outer contour of the pressing head 222 can be circular or other shapes, and its cross-sectional area can be smaller than the cross-sectional area of ​​the mounting cavity 113, so that it can extend into the mounting cavity 113 to push the lifting member 12 against sliding. It can be understood that in this embodiment, the pushing member 221 can be adjusted manually or mechanically so that the pushing member 221 drives the pressure head 222 to move to push the flywheel 31, and then the flywheel 31 is sequentially covered on the outside of the first magnet 321 and the second magnet 322 to complete the assembly; by keeping the pressure head 222 at the position where the press-fitting is completed, the pressure of the multiple first magnets 321, the multiple second magnets 322 and the flywheel 31 can be maintained.

[0062] See also Figure 2 、 Figure 4 and Figure 11In this embodiment, at least a portion of the peripheral sidewall of the push member 221 is provided with external threads. A threaded hole 212 that mates with the external threads is provided at a corresponding position on the bracket 21. The push member 221 is threadedly connected to the threaded hole 212 via the external threads. It will be understood that in this embodiment, the corresponding portion of the push member 221 mates with the threaded hole 212. By manually or by means of an instrument, the push member 221 is turned to drive the pressure head 222 toward the flywheel 31, pushing against the flywheel 31, thereby driving the lifting member 12 to move, so that the flywheel 31 is sequentially covered by the first magnet 321 and the second magnet 322.

[0063] Optionally, the pushing member 221 is a screw rod, a nut 211 is provided at a corresponding position of the bracket 21, and the threaded hole 212 is a threaded hole 212 opened in the nut 211. It can be understood that the nut 211 is fixedly arranged, and the cooperation between the screw rod and the nut 211 can realize the sliding function.

[0064] The above are merely optional embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included within the scope of the claims of the present application.

Claims

1. A rotor assembly tool configured to assemble a plurality of first magnets and a plurality of second magnets into a flywheel, characterized in that: The rotor assembly tool comprises: The mounting mechanism includes a mounting seat, a lifting member, and a guide member, wherein the mounting seat is provided with a mounting cavity; the lifting member is disposed in the mounting cavity and is movable along the axial direction of the guide member; the lifting member includes a plurality of first mounting platforms spaced apart from each other, each of which is capable of mounting a first magnet, with a mounting hole formed between two adjacent first mounting platforms; the guide member is disposed on the mounting seat and includes a plurality of second mounting platforms spaced apart from each other; the second mounting platforms are capable of mounting a second magnet, and the plurality of second mounting platforms are adapted to the plurality of mounting holes in a one-to-one correspondence when the lifting member moves along the axial direction of the guide member; and A pressing mechanism is configured to abut against the flywheel, wherein the flywheel abuts against the first mounting platforms to press the first magnets and the second magnets into the flywheel.

2. The rotor assembly tool according to claim 1, characterized in that: The height of the first mounting platform is equal to the height of the second mounting platform.

3. The rotor assembly tool according to claim 1, characterized in that: The rotor assembly tool further includes an elastic support member, which is disposed in the mounting cavity; one end of the elastic support member abuts against the lifting member to provide a force for the lifting member to move axially along the guide member.

4. The rotor assembly tool according to claim 3, characterized in that: The guide member includes a main body and a supporting bottom connected to each other, the supporting bottom and the main body are both arranged in the installation cavity, a plurality of second mounting platforms are protruded on a side of the main body away from the supporting bottom, the supporting bottom extends in a radial direction of the main body, and contacts the bottom wall of the installation cavity; The elastic supporting member is wound around the main body and abuts between the supporting bottom and the lifting member.

5. The rotor assembly tool according to claim 4, characterized in that: The lifting member includes a first lifting part and a second lifting part, the first lifting part is protruded from the second lifting part, the inner diameter of the first lifting part is smaller than the inner diameter of the second lifting part, the outer diameter of the first lifting part is smaller than the outer diameter of the second lifting part, and multiple first mounting platforms are all arranged on the first lifting part, the elastic support member is abutted between the support bottom and the first lifting part, and the second lifting part selectively abuts or separates from the mounting seat.

6. The rotor assembly tool according to claim 1, characterized in that: The mounting seat includes a base plate and a cover plate; the cover plate is arranged on the base plate and cooperates with the base plate to form the mounting cavity; the cover plate is provided with a stop boss, and the stop boss is provided with an opening, which is connected to the mounting cavity; the stop boss is arranged on the moving path of the lifting member and is exposed in the opening.

7. The rotor assembly tool according to claim 1, characterized in that: The rotor assembly tool further includes an indicator structure; the indicator structure is disposed on the mounting seat and is configured to mark the magnetic pole orientation of the first magnet and / or the second magnet.

8. The rotor assembly tool according to claim 7, characterized in that: The indicating structure is arranged around the lifting member, and the indicating structure is provided with a magnetic pole mark, and the magnetic pole mark corresponds to the position of the notch opened in the flywheel.

9. The rotor assembly tool according to any one of claims 1 to 8, characterized in that: The pressing mechanism includes a bracket and a pushing assembly, wherein the bracket is arranged on the mounting seat; the pushing assembly is arranged on the bracket and can move toward the mounting seat to press against the flywheel.

10. The rotor assembly tool according to claim 9, characterized in that: The pushing assembly includes a pushing piece and a pressure head. The pushing piece is mounted on the bracket. The pressure head is arranged at one end of the pushing piece facing the mounting seat and can abut against the flywheel.

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