A rotor assembly method

Abstract

A rotor assembly method includes the following steps: Step 1, inserting the iron core into the shaft; inserting the bottom plate into the bottom of the iron core fixing seat; then inserting the iron core fixing seat into the rotor mounting seat; then inserting the lower end of the iron core into the iron core fixing seat; then inserting the lower end of the rotating shaft into the upper end of the iron core; then setting a set of pressing blocks on the upper end of the rotating shaft; then pushing pressing block 1 so that pressing block 1 pushes the rotating shaft downward, so that the lower end of the rotating shaft passes through the iron core and the bottom plate in sequence and is inserted into the rotor mounting seat; Step 2, pasting magnetic steel; Step 3, covering the top plate; putting the top plate on the rotating shaft from the upper end of the rotating shaft; then putting pressing block 2 on the rotating shaft from the upper end of the rotating shaft; then pressing block 2 moves downward along the rotating shaft, pushing the top plate downward along the rotating shaft, so that the top plate presses the magnetic steel pasted on the outer surface of the iron core; Step 4, installing the sheath; Step 5, installing the upper bearing; Step 6, installing the lower bearing. This method can complete the rotor assembly conveniently and quickly, and ensure the accurate assembly of each component.

Description

Technical Field

[0001] The invention relates to the field of motor rotor assembly, in particular to a rotor assembly method. Background Art

[0002] like Figures 1 and 2 As shown, the existing rotor includes a rotating shaft 1002, which includes an iron core mounting section 1021 and bearing mounting sections 1022 located at both ends of the iron core mounting section 1021, the diameter of the iron core mounting section 1021 is larger than the diameter of the bearing mounting section 1022; the iron core mounting section 1021 is sleeved with a bottom plate 1007, an iron core 1006 and a top plate 1003, the outer surface of the iron core 1006 is adhered with a plurality of magnets 1005, and the magnets 1005 surround the outer surface of the iron core 1006; the bottom plate 1007 and the top plate 1003 are located at both ends of the iron core 1006 and are used to clamp the magnets 1005; the bottom plate 1007, the magnets 1005 and the top plate 1003 are covered with a sheath 1004; and bearings are provided on the bearing mounting sections 1022 at both ends of the iron core mounting section 1021.

[0003] The existing rotor assembly process is as follows:

[0004] Place the bottom plate 1007 on the bottom of the iron core 1006, aligning the center hole of the bottom plate 1007 with the center hole of the iron core 1006, then insert the lower end of the shaft 1002 from the upper end of the iron core 1006, and then pass through the iron core 1006 and the bottom plate 1007, so that the bottom plate 1007 and the iron core 1006 are sleeved on the iron core mounting section 1021, and then stick the magnet 1005 on the outer surface of the iron core 1006, so that the magnet 1005 covers the entire iron core 1006; then Then, the top plate 1003 is put on the rotating shaft 1002 from the upper end of the rotating shaft 1002, and the top plate 1003 is covered on the upper end of the iron core 1006, so that the top plate 1003 presses the magnet 1005 neatly, and the top plate 1003 and the bottom plate 1007 clamp the iron core 1006 and the magnet 1005; then the sheath 1004 is put on the outside of the bottom plate 1007, the iron core 1006 and the top plate 1003; finally, the bearing is installed on the bearing mounting section 1022.

[0005] In the existing assembly process, the bottom plate 1007 and the iron core 1006 are not convenient to be fixed. When the iron core 1006 is inserted into the shaft, the bottom plate 1007 and the iron core 1006 may be sent to move in the radial direction, resulting in the center hole of the bottom plate 1007 and the center hole of the iron core 1006 not being aligned, and thus it is not convenient to sleeve the iron core 1006 and the bottom plate 1007 on the rotating shaft 1002; when the top plate 1003 is covered, the bottom plate 1007 and the iron core 1006 are not fixed in the axial direction, resulting in a gap between the bottom plate 1007 and the iron core 1006. As a result, the top plate 1003 cannot press the magnet 1005 into alignment, and the bottom plate 1007 and the top plate 1003 cannot cooperate to clamp the magnet 1005; when the sleeve 1004 is put on, the sleeve 1004 needs to move downward along the axial direction of the rotating shaft 1002, and then the sleeve 1004 is put on the outside of the bottom plate 1007, the iron core 1006 and the top plate 1003; the inner diameter of the sleeve 1004 is large and the downward displacement distance is long. If the axis of the sleeve 1004 does not coincide with the axis of the rotating shaft 1002, the sleeve 1004 is likely to be stuck during the putting process.

[0006] The existing rotor assembly process results in low rotor assembly efficiency and defects such as inconvenient or inaccurate assembly between parts. Summary of the Invention

[0007] The object of the present invention is to provide a rotor assembly method for solving the above-mentioned problems, which method can conveniently and quickly complete the assembly of the rotor and ensure that all components are assembled accurately.

[0008] The technical solution adopted in the present invention is as follows:

[0009] A rotor assembly method, comprising the following steps:

[0010] Step 1, insert the iron core into the shaft;

[0011] Insert the bottom plate into the bottom of the core fixing seat so that the bottom plate is fixed to the bottom of the core fixing seat; then insert the core fixing seat into the rotor mounting seat so that the bottom plate and the core fixing seat are fixed to the rotor mounting seat; then insert the lower end of the core into the core fixing seat from the top of the core fixing seat so that the lower end of the core contacts the bottom plate and the center holes of the core and the bottom plate are aligned; then insert the lower end of the rotating shaft into the upper end of the core; then set a pressing block set on the upper end of the rotating shaft, and then push pressing block 1 so that pressing block 1 pushes the rotating shaft downward, so that the lower end of the rotating shaft passes through the core and the bottom plate in sequence and then is inserted into the rotor mounting seat; so that the core and the bottom plate are sleeved on the rotating shaft; then remove pressing block 1 and the core fixing seat;

[0012] Step 2, paste the magnetic steel;

[0013] Attach the magnets to the outer surface of the iron core so that the magnets cover the entire perimeter of the core.

[0014] Step 3, cover the top plate;

[0015] Slide the top plate onto the rotating shaft from the upper end, then slide the second pressing block onto the rotating shaft from the upper end. Then, move the second pressing block downward along the rotating shaft, pushing the top plate downward along the rotating shaft so that the top plate presses the magnets attached to the outer surface of the iron core, so that the lower ends of the magnets are in contact with the bottom plate 1007 and the upper ends of the magnets are in contact with the top plate. Then, remove the second pressing block.

[0016] Step 4, install the sheath;

[0017] Insert the guide cylinder into the rotor mounting seat, fix the guide cylinder in the rotor mounting seat, and sleeve the guide cylinder outside the iron core covered with magnetic steel, and leave a sleeve gap between the inner wall of the guide cylinder and the outer surface of the magnetic steel; then insert the lower end of the sleeve into the upper end of the guide cylinder; sleeve the pressing block 2 from the upper end of the rotating shaft onto the rotating shaft; then push the pressing block 2 down along the rotating shaft and contact the upper end of the sleeve, push the sleeve into the guide cylinder, so that the sleeve is located in the sleeve gap, and the sleeve is sleeved outside the iron core covered with magnetic steel.

[0018] Step 5: Install the upper bearing; place the upper bearing sleeve on the upper end of the rotating shaft;

[0019] Step 6: Install the lower bearing; sleeve the lower bearing onto the lower end of the shaft;

[0020] Furthermore, the upper bearing top block and the upper bearing are placed in the bearing accommodating hole of the pressing block one in sequence; the convex block of the upper bearing top block is pressed against the inner ring of the upper bearing, and the end surface of the top block body of the upper bearing top block without the convex block is pressed against the end of the bearing accommodating hole; then the position of the pressing block one is adjusted so that the opening of the bearing accommodating hole is downward, so that the upper bearing is located below the upper bearing top block; then the upper bearing is aligned with the bearing mounting section at the upper end of the rotating shaft, so that the upper bearing is sleeved on the bearing mounting section at the upper end of the rotating shaft, and then the pressing block is pushed downward so that the upper bearing top block presses the inner ring of the upper bearing, and the upper bearing is pushed downward until the lower end surface of the upper bearing contacts the upper end surface of the iron core mounting section.

[0021] Furthermore, the rotating shaft assembled with the bottom plate, iron core, magnet, top plate, sleeve and upper bearing is first removed from the base; then the guide cylinder is inserted into the positioning cylinder; then the lower bearing and the lower bearing top block are sleeved on the end of the bearing mounting section at the lower end of the rotating shaft, and then the lower end of the rotating shaft is inserted into the guide cylinder, so that the lower bearing top block and the lower bearing are located in the guide cylinder, so that the protrusion of the lower bearing top block is pressed against the bottom of the inner ring of the lower bearing, and the end surface of the top block body of the lower bearing top block without the protrusion is located at the top of the base; then pressing block 1 cooperates with the upper bearing top block, pressing the upper bearing, moving the rotating shaft downward, and inserting the lower end of the rotating shaft into the lower bearing and the lower bearing top block until the upper end surface of the lower bearing contacts the lower end surface of the iron core mounting section.

[0022] Furthermore, the rotor mounting seat includes a base and a positioning cylinder, wherein a through circular positioning hole is formed in the positioning cylinder; the axis of the positioning hole coincides with the axis of the positioning cylinder; the bottom of the positioning cylinder is fixedly arranged on the top of the base; the left and right side walls of the positioning cylinder are cut away, leaving only the arc-shaped front side wall and the arc-shaped rear side wall; a base center hole is formed in the center of the base and vertically passes through the base; the axis of the base center hole coincides with the axis of the positioning hole; the diameter of the positioning hole matches the outer diameter of the core fixing seat; and the diameter of the base center hole matches the diameter of the core mounting section.

[0023] When the iron core is inserted into the shaft, the iron core fixing seat is located in the positioning cylinder, the bottom of the iron core fixing seat and the bottom plate are arranged on the top of the base, and the lower end of the rotating shaft is inserted into the center hole of the base;

[0024] When covering the top plate, the guide cylinder is inserted into the positioning cylinder.

[0025] Furthermore, the core fixing seat is cylindrical, and is provided with a core positioning hole and a bottom plate positioning hole that are interconnected, and the axes of the core positioning hole and the bottom plate positioning hole coincide with the axis of the core fixing seat; the upper end of the core positioning hole passes through the top of the core fixing seat, and the lower end of the bottom plate positioning hole passes through the bottom of the core fixing seat; the diameter of the bottom plate positioning hole is larger than the diameter of the core positioning hole; the diameter of the core positioning hole matches the outer diameter of the core, and the diameter of the bottom plate positioning hole matches the outer diameter of the bottom plate; the outer diameter of the core fixing seat matches the diameter of the positioning hole; the length of the core fixing seat is smaller than the length of the core;

[0026] When the iron core is inserted into the shaft, the bottom plate is embedded in the bottom plate positioning hole, and the lower end of the iron core is inserted into the iron core positioning hole.

[0027] Furthermore, the pressing block 1 is provided with an iron core mounting section accommodating hole 1, a bearing mounting section accommodating hole and a bearing accommodating hole which are connected in sequence; the axes of the iron core mounting section accommodating hole 1, the bearing mounting section accommodating hole and the bearing accommodating hole coincide with the axis of the pressing block 1; the end of the iron core mounting section accommodating hole 1 away from the bearing mounting section accommodating hole passes through one end of the pressing block 1; the end of the bearing accommodating hole away from the bearing mounting section accommodating hole passes through the other end of the pressing block 1; the diameter of the iron core mounting section accommodating hole 1 matches the diameter of the iron core mounting section, the diameter of the bearing mounting section accommodating hole matches the diameter of the bearing mounting section, and the diameter of the bearing accommodating hole matches the outer diameter of the bearing;

[0028] When the iron core is inserted into the shaft, the iron core installation section of the rotating shaft is located in the iron core installation section accommodating hole 1, so that the bearing installation section of the rotating shaft is located in the bearing installation section accommodating hole; the bearing accommodating hole is used to accommodate the upper bearing top block and the upper bearing.

[0029] Furthermore, the pressing block 2 is provided with an iron core mounting section accommodating hole 2 and a sheath accommodating hole that are interconnected, and the axes of the iron core mounting section accommodating hole 2 and the sheath accommodating hole coincide with the axis of the pressing block 2; the end of the iron core mounting section accommodating hole 2 away from the sheath accommodating hole passes through one end of the pressing block 2; the end of the sheath accommodating hole away from the iron core mounting section accommodating hole 2 passes through the other end of the pressing block 2; the diameter of the iron core mounting section accommodating hole 2 matches the diameter of the iron core mounting section, and the diameter of the sheath accommodating hole matches the outer diameter of the sheath; the upper end of the sheath can be inserted into the sheath accommodating hole.

[0030] Furthermore, the upper bearing top block and the lower bearing top block have the same structure and both include a cylindrical top block body and a protrusion arranged at one end of the top block body. A top block center hole is opened in the upper bearing top block and the lower bearing top block, and the top block center hole passes through the top block body and the protrusion; the diameter of the top block center hole matches the diameter of the bearing mounting section, the outer diameter of the protrusion matches the outer diameter of the bearing inner ring, and the outer diameter of the top block body matches the diameter of the bearing accommodating hole.

[0031] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0032] In the present invention, due to the presence of the core positioning block, the base plate and the core can be fixed to ensure that their center holes are aligned, which facilitates the rotation shaft to pass through the base plate and the core. Since the lower end of the rotation shaft is always inserted into the rotor mounting seat, the rotor mounting seat limits the downward movement of the base plate, which can avoid the existence of a gap between the base plate and the bottom part of the core. At the same time, the rotor mounting seat cooperates with the second pressing block to enable the base plate and the top plate to clamp the magnet. Due to the presence of the guide cylinder, after the sleeve is inserted into the guide cylinder for positioning, it can ensure that the axes of the sleeve and the guide cylinder are aligned. At this time, when the sleeve is pushed downward, the sleeve can move downward smoothly and be conveniently installed outside the base plate, magnet and top plate. The assembly method of the present invention can complete the assembly of the rotor quickly and conveniently, and ensure the accurate assembly of each component. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is the structural diagram of the rotor;

[0034] Figure 2 It is the structural diagram of the rotating shaft;

[0035] Figure 3 and 4 are structural diagrams of the rotor mounting base;

[0036] Figure 5 This is the structural diagram of the core fixing seat;

[0037] Figure 6 It is a structural diagram of pressing block 1;

[0038] Figure 7 This is the structural diagram of the pressing block 2;

[0039] Figure 8 It is a structural diagram of the upper bearing top block and the lower bearing top block;

[0040] Figure 9 This is the state diagram when the iron core enters the shaft;

[0041] Figure 10 This is the state diagram when the top plate is covered;

[0042] Figure 11 and 12 This is a state diagram when the sheath is installed;

[0043] Figure 13 This is the state diagram when the bearing is installed;

[0044] Figure 14 This is the state diagram when the lower bearing is installed. DETAILED DESCRIPTION

[0045] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0046] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0047] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0048] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0049] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These terms are intended only to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0050] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0051] like Figures 1 to 14 As shown, the present invention discloses a rotor assembly method, which uses a rotor mounting seat 3, an iron core fixing seat 2, a guide cylinder 7, a pressing block 1, a pressing block 2 4, an upper bearing top block 8, a lower bearing top block 9 and a base top block 5;

[0052] like Figure 3 、 4 As shown, the rotor mounting seat 3 is cylindrical and includes a base 302 and a positioning cylinder 301. A through circular positioning hole 304 is formed in the positioning cylinder 301. The axis of the positioning hole 304 coincides with the axis of the positioning cylinder 301. The bottom of the positioning cylinder 301 is fixedly arranged on the top of the base 302. The left and right walls of the positioning cylinder 301 are cut away, leaving only the arc-shaped front side wall and the arc-shaped rear side wall. Figure 4 This is a view of the rotor mounting base after rotation, with the curved front side wall on the left and the curved rear side wall on the right; a base center hole 303 is provided in the center of the base 302, which vertically passes through the base 302; the axis of the base center hole 303 coincides with the axis of the positioning hole 304; the diameter of the positioning hole 304 matches the outer diameter of the core fixing base 2; the diameter of the base center hole 303 matches the diameter of the core mounting section 1021.

[0053] like Figure 5 As shown, the core fixing seat 2 is cylindrical, and is provided with a core positioning hole 201 and a bottom plate positioning hole 202 that are interconnected.

[0054] The axes of the core positioning hole 201 and the bottom plate positioning hole 202 coincide with the axis of the core fixing seat 2; the upper end of the core positioning hole 201 passes through the top of the core fixing seat 2, and the lower end of the bottom plate positioning hole 202 passes through the bottom of the core fixing seat 2; the diameter of the bottom plate positioning hole 202 is larger than the diameter of the core positioning hole 201; the diameter of the core positioning hole 201 matches the outer diameter of the core 1006, and the diameter of the bottom plate positioning hole 202 matches the outer diameter of the bottom plate 1007; the outer diameter of the core fixing seat 2 matches the diameter of the positioning hole 304; the length of the core fixing seat 2 is smaller than the length of the core 1006.

[0055] The outer diameter of the guide cylinder 7 matches the outer diameter of the positioning hole 304 , and the inner diameter of the guide cylinder 7 matches the outer diameter of the sheath 1004 .

[0056] like Figure 6 As shown, the pressing block 1 is provided with an iron core mounting section accommodating hole 103, a bearing mounting section accommodating hole 102 and a bearing accommodating hole 101 which are connected in sequence; the axes of the iron core mounting section accommodating hole 103, the bearing mounting section accommodating hole 102 and the bearing accommodating hole 101 coincide with the axis of the pressing block 1; the end of the iron core mounting section accommodating hole 103 away from the bearing mounting section accommodating hole 102 passes through one end of the pressing block 1; the end of the bearing accommodating hole 101 away from the bearing mounting section accommodating hole 102 passes through the other end of the pressing block 1; the diameter of the iron core mounting section accommodating hole 103 matches the diameter of the iron core mounting section 1021, the diameter of the bearing mounting section accommodating hole 102 matches the diameter of the bearing mounting section 1022, and the diameter of the bearing accommodating hole 101 matches the outer diameter of the bearing.

[0057] like Figure 7 As shown, the pressing block 2 4 is provided with an iron core mounting section accommodating hole 2 402 and a sheath accommodating hole 401 which are interconnected, and the axes of the iron core mounting section accommodating hole 2 402 and the sheath accommodating hole 401 coincide with the axis of the pressing block 2 4; the end of the iron core mounting section accommodating hole 2 402 away from the sheath accommodating hole 401 passes through one end of the pressing block 2 4; the end of the sheath accommodating hole 401 away from the iron core mounting section accommodating hole 2 402 passes through the other end of the pressing block 2 4; the diameter of the iron core mounting section accommodating hole 2 402 matches the diameter of the iron core mounting section 1021, and the diameter of the sheath accommodating hole 401 matches the outer diameter of the sheath 1004.

[0058] like Figure 8As shown, the upper bearing top block 8 and the lower bearing top block 9 have the same structure and both include a cylindrical top block body 801 and a protrusion 802 arranged at one end of the top block body 801. A top block center hole 803 is opened in the upper bearing top block 8 and the lower bearing top block 9, and the top block center hole 803 passes through the top block body 801 and the protrusion 802; the diameter of the top block center hole 803 matches the diameter of the bearing mounting section 1022, the outer diameter of the protrusion 802 matches the outer diameter of the bearing inner ring, and the outer diameter of the top block body 801 matches the diameter of the bearing accommodating hole 101.

[0059] The diameter of the base top block 5 matches the diameter of the base center hole 303 , and the length of the base top block 5 is the length of the base center hole 303 minus the length of the lower end of the rotating shaft 1002 inserted into the base center hole 303 .

[0060] When assembling the rotor, proceed as follows:

[0061] Step 1, insert the iron core into the shaft;

[0062] like Figure 9 As shown, the bottom plate 1007 is embedded in the bottom plate positioning hole 202, so that the bottom plate 1007 is fixed to the bottom of the core fixing seat 2; then the core fixing seat 2 is placed into the positioning cylinder 301 from the upper end of the positioning cylinder 301, so that the bottom of the core fixing seat 2 and the bottom plate 1007 are set on the top of the base 302, so that the core fixing seat 2 and the bottom plate 1007 are fixed in the positioning cylinder 301; then the lower end of the core 1006 is inserted into the core positioning hole 201 from the top of the core fixing seat 2, so that the lower end of the core 1006 contacts the bottom plate 1007, so that the core 1006 is fixed on the core fixing seat 2; then the lower end of the rotating shaft 1002 is inserted into the upper end of the core 1006, and then press Block 1 is sleeved on the upper end of the rotating shaft 1002, so that the core mounting section 1021 of the rotating shaft 1002 is located in the core mounting section accommodating hole 103, and the bearing mounting section 1022 of the rotating shaft 1002 is located in the bearing mounting section accommodating hole 102; then the pressing block 1 is pushed downward until the bottom of the pressing block 1 contacts the top of the positioning cylinder 301, so that the pressing block 1 pushes the rotating shaft 1002 downward, and the lower end of the rotating shaft 1002 passes through the iron core 1006 and the bottom plate 1007 in turn and is inserted into the base 302; the iron core 1006 and the bottom plate 1007 are sleeved on the iron core mounting section 1021 of the rotating shaft 1002; then the pressing block 1 and the iron core fixing seat 2 are removed.

[0063] In this step, due to the presence of the iron core fixing seat 2, the bottom plate 1007 is embedded in the bottom plate positioning hole 202, and the iron core 1006 is inserted into the iron core positioning hole 201. This can restrict the radial movement of the bottom plate 1007 and the iron core 1006, ensuring that the center holes of the bottom plate 1007 and the iron core 1006 are always aligned, thereby facilitating the rotation shaft 1002 to pass through the bottom plate 1007 and the iron core 1006. The cooperation between the pressing block 1 and the base 302 can facilitate the pushing of the rotation shaft 1002 into the iron core 1006.

[0064] Step 2, paste the magnetic steel;

[0065] Adhesive is applied to the inner wall of the magnet 1005, and then the magnet 1005 is pasted on the outer surface of the iron core 1006 so that the magnet 1005 covers the entire circumference of the iron core 1006. When pasting the magnet 1005, the magnetic poles of the magnet 1005 are arranged alternately. For example, if 6 magnets 1005 are pasted at equal intervals on the outer surface of the iron core 1006, the outer surfaces of magnets 1005 No. 1, 3, and 5 are N poles, and the inner surfaces are S poles; the outer surfaces of magnets 1005 No. 2, 4, and 6 are S poles, and the inner surfaces are N poles.

[0066] Because the left and right walls of the positioning cylinder 301 are cut away, the magnets 1005 can be attached to the outer surface of the core 1006 through the notches on the left and right sides of the positioning cylinder 301. In actual operation, the entire semi-finished rotor can be removed, attached to the magnets 1005, and then replaced. The notches on both sides also facilitate removal of the semi-finished rotor.

[0067] Step 3, cover the top plate;

[0068] like Figure 10 As shown, insert the base top block 5 into the base 302 from the lower end of the base center hole 303, so that the top of the base top block 5 contacts the lower end of the rotating shaft 1002, and the bottom of the base top block 5 is flush with the bottom of the base 302; put the top plate 1003 on the rotating shaft 1002 from the upper end of the rotating shaft 1002, and then adjust the direction of the pressing block 2 4 so that the core installation section receiving hole 2 402 is located below the sheath receiving hole 401, and then put the pressing block 2 4 on the upper end of the rotating shaft 1002 so that the upper end of the rotating shaft 1002 is located below the sheath receiving hole 401. 3. In the accommodating hole 2 402 of the core mounting section; then push the pressing block 2 4 downward along the rotating shaft 1002 until the end of the pressing block 2 4 contacts the top of the positioning cylinder 301, so that the pressing block 2 4 pushes the top plate 1003 downward along the rotating shaft 1002, so that the top plate 1003 presses the magnet 1005 pasted on the outer surface of the iron core 1006, so that the lower end of the magnet 1005 contacts the bottom plate 1007, and the upper end of the magnet 1005 contacts the top plate 1003; then remove the pressing block 2 4.

[0069] Since the bottom plate 1007, top plate 1003 and the core 1006 shaft 1002 mounting sections are all interference fit, when covering the top plate 1003, if the lower end of the shaft 1002 is not supported by the base top block 5, the shaft 1002 may continue to move downward, thereby causing an inaccurate assembly position; inserting the base top block 5 into the base 302 from the lower end of the base center hole 303 can prevent the shaft 1002 from moving downward.

[0070] In this step, since the lower end of the rotating shaft 1002 is always inserted into the base 302, the base 302 limits the downward movement of the bottom plate 1007, which can avoid the existence of a gap between the bottom plate 1007 and the bottom part of the iron core 1006. At the same time, the base 302 cooperates with the pressing block 24, which can enable the bottom plate 1007 and the top plate 1003 to clamp the magnet 1005.

[0071] Step 4, install the sheath;

[0072] Insert the lower end of the guide cylinder 7 into the positioning cylinder 301 from the upper end of the positioning cylinder 301, so that the bottom of the guide cylinder 7 contacts the top of the base 302, and the guide cylinder 7 is sleeved on the outside of the iron core 1006 covered with magnetic steel 1005, and a gap of the sheath 1004 is left between the inner wall of the guide cylinder 7 and the outer surface of the magnetic steel 1005; then insert the lower end of the sheath 1004 into the upper end of the guide cylinder 7; sleeve the pressing block 2 4 from the upper end of the rotating shaft 1002 onto the rotating shaft 1002; then move the pressing block 2 4 down along the rotating shaft 1002 and contact the upper end of the sheath 1004, push the sheath 1004 into the guide cylinder 7, so that the sheath 1004 is located in the gap of the sheath 1004, and the sheath 1004 is sleeved on the outside of the iron core 1006 covered with magnetic steel 1005.

[0073] Further, such as Figure 11 、 12As shown, the guide cylinder 7 can be set a little longer, so that the guide cylinder 7 is higher than the positioning cylinder 301, and the upper end of the guide cylinder 7 extends out of the positioning cylinder 301; then the lower end of the sheath 1004 is inserted into the guide cylinder 7, and then the direction of the pressing block 2 4 is adjusted so that the sheath accommodating hole 401 is located below the accommodating hole 2 402 of the core installation section; the pressing block 2 4 is sleeved on the rotating shaft 1002, so that the upper end of the sheath 1004 is inserted into the sheath accommodating hole 401; then the pressing block 2 4 is pushed down along the rotating shaft 1002 until the end of the pressing block 2 4 contacts the top of the guide cylinder 7, so that the pressing block 2 4 pushes the sheath 1004 to move downward and insert into the guide cylinder 7, so that the sheath 1004 is located in the gap of the sheath 1004; If the guide tube 7 is higher than the positioning tube 301, the lower end of the sleeve 1004 can be inserted into the upper end of the guide tube 7 for fixation first, and then the guide tube 7 can be inserted under the action of the pressing block 2 4 to ensure accurate positioning. However, if the guide tube 7 is higher than the positioning tube 301, the sleeve 1004 cannot be inserted to the bottom, and the guide tube 7 needs to be removed. Then, the direction of the pressing block 2 4 needs to be readjusted so that the sleeve accommodating hole 401 is located above the core mounting section accommodating hole 2 402, and then the pressing block 2 4 is sleeved on the rotating shaft 1002, and then the pressing block 2 4 is pushed to continue to move downward to push the sleeve 1004 to the bottom, so that the sleeve 1004 is completely sleeved on the magnet 1005, completing the assembly of the sleeve 1004, and then the pressing block 2 4 is removed.

[0074] Due to the presence of the guide tube 7, after the sleeve 1004 is inserted into the guide tube 7 and positioned, the axes of the sleeve 1004 and the guide tube 7 can be aligned. At this time, when the sleeve 1004 is pushed down, the sleeve 1004 can move down smoothly and be conveniently mounted outside the bottom plate 1007, the magnet 1005 and the top plate 1003.

[0075] Step 5, install the bearing;

[0076] like Figure 13 As shown, the upper bearing top block 8 and the upper bearing 1001 are placed in the bearing accommodating hole 101 of the pressing block 1 in sequence; the protrusion 802 of the upper bearing top block 8 is pressed against the inner ring of the upper bearing 1001, and the end surface of the top block body 801 of the upper bearing top block 8 without the protrusion is pressed against the end point of the bearing accommodating hole 101; then the position of the pressing block 1 is adjusted so that the opening of the bearing accommodating hole 101 is downward, so that the upper bearing 1001 is located below the upper bearing top block 8; then the upper bearing 1001 is aligned with the bearing mounting section 1022 at the upper end of the rotating shaft 1002, so that the upper bearing 1001 is sleeved on the bearing mounting section 1022 at the upper end of the rotating shaft 1002, and then the pressing block 1 is pushed downward to make the upper bearing top block 8 press the inner ring of the upper bearing 1001, and push the upper bearing 1001 downward until the lower end surface of the upper bearing 1001 contacts the upper end surface of the iron core mounting section 1021.

[0077] Step 6, install the lower bearing;

[0078] like Figure 14 As shown, first remove the rotating shaft 1002 equipped with the bottom plate 1007, the iron core 1006, the magnetic steel 1005, the top plate 1003, the sleeve 1004 and the upper bearing 1001 from the base 302; then insert the guide cylinder 7 into the positioning cylinder 301; then sleeve the lower bearing 1008 and the lower bearing top block 9 on the end of the bearing mounting section 1022 at the lower end of the rotating shaft 1002, and then insert the lower end of the rotating shaft 1002 into the guide cylinder 7 so that the lower bearing top block 9 and the lower bearing 1008 are located in the guide cylinder 7. The protrusion 802 of the lower bearing top block 9 is pressed against the bottom of the inner ring of the lower bearing 1008, so that the end surface of the top block body 801 of the lower bearing top block 9 without the protrusion is located on the top of the base 302; then the pressing block 1 and the upper bearing top block 8 are matched to press the upper bearing 1001 to move the rotating shaft 1002 downward, so that the lower end of the rotating shaft 1002 is inserted into the lower bearing 1008 and the lower bearing top block 9 until the upper end surface of the lower bearing 1008 contacts the lower end surface of the iron core mounting section 1021, and the assembly of the lower bearing 1008 is completed.

[0079] During the assembly process, the sleeve 1004 and the guide cylinder 7 ensure that the rotating shaft 1002 can move vertically downward, thereby ensuring the installation of the lower bearing 1008.

[0080] In the assembly method of the present invention, the presence of the positioning block for the core 1006 secures the bottom plate 1007 and the core 1006, ensuring alignment of their center holes and facilitating the passage of the rotating shaft 1002 through the bottom plate 1007 and the core 1006. Since the lower end of the rotating shaft 1002 is continuously inserted into the base 302 of the rotor mounting seat 3, downward movement of the bottom plate 1007 is restricted, thereby preventing a gap between the bottom plate 1007 and the bottom portion of the core 1006. Furthermore, the base 302 of the rotor mounting seat 3 cooperates with the pressing block 24 to enable the bottom plate 1007 and the top plate 1003 to clamp the magnet 1005. Due to the presence of the guide cylinder 7, after the sleeve 1004 is inserted into the guide cylinder 7 and positioned, the axes of the sleeve 1004 and the guide cylinder 7 are aligned. At this time, when the sleeve 1004 is pushed downward, the sleeve 1004 can move downward smoothly and be easily installed outside the bottom plate 1007, the magnet 1005 and the top plate 1003. The assembly method of the present invention can quickly and easily complete the assembly of the rotor and ensure the accurate assembly of all components.

[0081] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rotor assembly method, characterized in that: The assembly method comprises the following steps: Step 1, insert the iron core into the shaft; The bottom plate (1007) is embedded in the bottom of the core fixing seat (2) so that the bottom plate (1007) is fixed to the bottom of the core fixing seat (2); the core fixing seat (2) is then embedded in the rotor mounting seat (3) so that the bottom plate (1007) and the core fixing seat (2) are fixed to the rotor mounting seat (3); the lower end of the core (1006) is then inserted into the core fixing seat (2) from the top of the core fixing seat (2) so that the lower end of the core (1006) contacts the bottom plate (1007) so that the center holes of the core (1006) and the bottom plate (1007) are aligned. Then, the lower end of the rotating shaft (1002) is inserted into the upper end of the iron core (1006), and the pressing block (1) is sleeved on the upper end of the rotating shaft (1002). Then, the pressing block (1) is pushed so that the pressing block (1) pushes the rotating shaft (1002) downward, and the lower end of the rotating shaft (1002) passes through the iron core (1006) and the bottom plate (1007) in sequence and is inserted into the rotor mounting seat (3); the iron core (1006) and the bottom plate (1007) are sleeved on the rotating shaft (1002); then, the pressing block (1) and the iron core fixing seat (2) are removed. Step 2, paste the magnetic steel; The magnet (1005) is attached to the outer surface of the iron core (1006) so that the magnet (1005) covers the entire periphery of the iron core (1006); Step 3, cover the top plate; The top plate (1003) is mounted on the rotating shaft (1002) from the upper end of the rotating shaft (1002), and then the pressing block 2 (4) is mounted on the rotating shaft (1002) from the upper end of the rotating shaft (1002), and then the pressing block 2 (4) is moved downward along the rotating shaft (1002), pushing the top plate (1003) to move downward along the rotating shaft (1002), so that the top plate (1003) presses the magnet (1005) attached to the outer surface of the iron core (1006) so that the lower end of the magnet (1005) is in contact with the bottom plate 1007, and the upper end of the magnet (1005) is in contact with the top plate (1003); then the pressing block 2 (4) is removed; Step 4, install the sheath; Insert the guide tube (7) into the rotor mounting seat (3), fix the guide tube (7) in the rotor mounting seat (3), and sleeve the guide tube (7) outside the iron core (1006) covered with magnetic steel (1005), and leave a gap of the sheath (1004) between the inner wall of the guide tube (7) and the outer surface of the magnetic steel (1005); then insert the lower end of the sheath (1004) into the upper end of the guide tube (7); press the second block ( 4) Sleeve the upper end of the rotating shaft (1002) onto the rotating shaft (1002); then push the pressing block 2 (4) downward along the rotating shaft (1002) and contact the upper end of the sheath (1004), push the sheath (1004) into the guide cylinder (7), so that the sheath (1004) is located in the gap of the sheath (1004), and the sheath (1004) is sleeved on the outside of the iron core (1006) covered with magnetic steel (1005); Step 5, install the upper bearing; sleeve the upper bearing (1001) on the upper end of the rotating shaft (1002); Step 6, install the lower bearing; sleeve the lower bearing (1008) on the lower end of the rotating shaft (1002).

2. The rotor assembly method according to claim 1, characterized in that: Place the upper bearing top block (8) and the upper bearing (1001) into the bearing receiving hole (101) of the pressing block (1) in sequence; make the protrusion (802) of the upper bearing top block (8) press against the inner ring of the upper bearing (1001), and make the end surface of the top block body (801) of the upper bearing top block (8) without the protrusion (802) press against the end of the bearing receiving hole (101); then adjust the position of the pressing block (1) so that the opening of the bearing receiving hole (101) faces downward, so that the upper bearing (1001) is located on the upper shaft. The upper bearing (1001) is then aligned with the bearing mounting section (1022) at the upper end of the rotating shaft (1002), so that the upper bearing (1001) is sleeved on the bearing mounting section (1022) at the upper end of the rotating shaft (1002), and then the pressing block (1) is pushed downward to make the upper bearing top block (8) press the inner ring of the upper bearing (1001), and push the upper bearing (1001) downward until the lower end surface of the upper bearing (1001) contacts the upper end surface of the core mounting section (1021).

3. The rotor assembly method according to claim 2, characterized in that: First, the rotating shaft (1002) equipped with the bottom plate (1007), the iron core (1006), the magnetic steel (1005), the top plate (1003), the sleeve (1004) and the upper bearing (1001) is removed from the base (302); then the guide cylinder (7) is inserted into the positioning cylinder (301); then the lower bearing (1008) and the lower bearing top block (9) are sleeved on the end of the bearing mounting section (1022) at the lower end of the rotating shaft (1002); then the lower end of the rotating shaft (1002) is inserted into the guide cylinder (7) so that the lower bearing top block (9) and the lower bearing (1008) are located The guide cylinder (7) is provided so that the protrusion (802) of the lower bearing top block (9) is pressed against the bottom of the inner ring of the lower bearing (1008), and the end surface of the top block body (801) of the lower bearing top block (9) without the protrusion is located on the top of the base (302); then, the pressing block (1) and the upper bearing top block (8) are matched to press the upper bearing (1001) to move the rotating shaft (1002) downward, so that the lower end of the rotating shaft (1002) is inserted into the lower bearing (1008) and the lower bearing top block (9) until the upper end surface of the lower bearing (1008) contacts the lower end surface of the core mounting section (1021).

4. The rotor assembly method according to claim 3, characterized in that: The rotor mounting seat (3) comprises a base (302) and a positioning cylinder (301), wherein a through circular positioning hole (304) is provided in the positioning cylinder (301); the axis of the positioning hole (304) coincides with the axis of the positioning cylinder (301); the bottom of the positioning cylinder (301) is fixedly arranged on the top of the base (302); the left side wall and the right side wall of the positioning cylinder (301) are cut away, leaving only the arc-shaped front side wall and the arc-shaped rear side wall; a base center hole (303) is provided in the center of the base (302) and vertically passes through the base (302); the axis of the base center hole (303) coincides with the axis of the positioning hole (304); the diameter of the positioning hole (304) matches the outer diameter of the core fixing seat (2); and the diameter of the base center hole (303) matches the diameter of the core mounting section (1021); When the iron core (1006) is inserted into the shaft, the iron core fixing seat (2) is located in the positioning cylinder (301), the bottom of the iron core fixing seat (2) and the bottom plate (1007) are arranged on the top of the base (302), and the lower end of the rotating shaft (1002) is inserted into the center hole (303) of the base; When the top plate (1003) is covered, the guide cylinder (7) is inserted into the positioning cylinder (301).

5. The rotor assembly method according to claim 3, characterized in that: The core fixing seat (2) is cylindrical, and is provided with a core positioning hole (201) and a bottom plate positioning hole (202) that are interconnected, and the axes of the core positioning hole (201) and the bottom plate positioning hole (202) coincide with the axis of the core fixing seat (2); the upper end of the core positioning hole (201) passes through the top of the core fixing seat (2), and the lower end of the bottom plate positioning hole (202) passes through the bottom of the core fixing seat (2); the diameter of the bottom plate positioning hole (202) is larger than the diameter of the core positioning hole (201); the diameter of the core positioning hole (201) matches the outer diameter of the core (1006), and the diameter of the bottom plate positioning hole (202) matches the outer diameter of the bottom plate (1007); the outer diameter of the core fixing seat (2) matches the diameter of the positioning hole (304); the length of the core fixing seat (2) is smaller than the length of the core (1006); When the iron core (1006) is inserted into the shaft, the bottom plate (1007) is embedded in the bottom plate positioning hole (202), and the lower end of the iron core (1006) is inserted into the iron core positioning hole (201).

6. The rotor assembly method according to claim 3, characterized in that: The pressing block 1 (1) is provided with an iron core mounting section accommodating hole 1 (103), a bearing mounting section accommodating hole (102) and a bearing accommodating hole (101) which are connected in sequence; the axes of the iron core mounting section accommodating hole 1 (103), the bearing mounting section accommodating hole (102) and the bearing accommodating hole (101) coincide with the axis of the pressing block 1 (1); the end of the iron core mounting section accommodating hole 1 (103) away from the bearing mounting section accommodating hole (102) passes through one end of the pressing block 1 (1); the end of the bearing accommodating hole (101) away from the bearing mounting section accommodating hole (102) passes through the other end of the pressing block 1 (1); the diameter of the iron core mounting section accommodating hole 1 (103) matches the diameter of the iron core mounting section (1021), the diameter of the bearing mounting section accommodating hole (102) matches the diameter of the bearing mounting section (1022), and the diameter of the bearing accommodating hole (101) matches the outer diameter of the bearing; When the iron core (1006) is inserted into the shaft, the iron core mounting section (1021) of the rotating shaft (1002) is located in the iron core mounting section accommodating hole 1 (103), so that the bearing mounting section (1022) of the rotating shaft (1002) is located in the bearing mounting section accommodating hole (102); the bearing accommodating hole (101) is used to accommodate the upper bearing top block (8) and the upper bearing (1001).

7. The rotor assembly method according to claim 3, characterized in that: The pressing block 2 (4) is provided with a core mounting section receiving hole 2 (402) and a sheath receiving hole (401) that are interconnected, and the axes of the core mounting section receiving hole 2 (402) and the sheath receiving hole (401) coincide with the axis of the pressing block 2 (4); the end of the core mounting section receiving hole 2 (402) away from the sheath receiving hole (401) passes through one end of the pressing block 2 (4); the end of the sheath receiving hole (401) away from the core mounting section receiving hole 2 (402) passes through the other end of the pressing block 2 (4); the diameter of the core mounting section receiving hole 2 (402) matches the diameter of the core mounting section (1021), and the diameter of the sheath receiving hole (401) matches the outer diameter of the sheath (1004); the upper end of the sheath (1004) can be inserted into the sheath receiving hole (401).

8. The rotor assembly method according to claim 3, characterized in that: The upper bearing top block (8) and the lower bearing top block (9) have the same structure and both include a cylindrical top block body (801) and a protrusion (802) arranged at one end of the top block body (801). A top block center hole (803) is opened in the upper bearing top block (8) and the lower bearing top block (9), and the top block center hole (803) passes through the top block body (801) and the protrusion (802); the diameter of the top block center hole (803) matches the diameter of the bearing mounting section (1022), the outer diameter of the protrusion (802) matches the outer diameter of the bearing inner ring, and the outer diameter of the top block body (801) matches the diameter of the bearing accommodating hole (101).

Images