Motor with rotor convenient to disassemble and assemble

Abstract

The motor comprises a shell, a stator, a rotor, a cover body and a limiting mechanism, the shell is provided with a containing cavity, the containing cavity is provided with an opening, the stator is contained in the containing cavity, the rotor comprises a rotor body and a rotating shaft, the rotor body is rotatably arranged on the stator in a penetrating mode, and the rotor body is arranged on the rotating shaft in a sleeved mode. The cover body can enter or retreat from the containing cavity along the opening, a first avoiding hole is formed in the cover body, one end of the rotating shaft penetrates through the first avoiding hole, a limiting groove is formed in the peripheral side of the cover body, the limiting mechanism comprises a seat body assembly, an adjusting piece and at least two limiting pieces, and the seat body assembly is provided with a mounting cavity and an avoiding channel; a sliding groove communicated with the avoiding channel is formed in the wall face of the installation cavity, the cover body penetrates through the avoiding channel, the limiting piece is arranged in the sliding groove in a sliding mode so that one end of the limiting piece can enter or retreat from the limiting groove, the adjusting piece is rotatably arranged in the installation cavity, a linkage structure is arranged between the adjusting piece and the limiting piece, and the disassembly and assembly efficiency of the motor can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a motor facilitating the disassembly and assembly of a rotor. Background Art

[0002] A motor is a commonly used power source in life, mainly converting electrical energy into mechanical energy. It is almost an essential part in electromechanical equipment, used to drive an object to rotate or move. During the operation of the motor, the rotor rotates mainly. After long-term operation, the rotor needs to be repaired and maintained.

[0003] In the assembly process of the motors in the prior art, the connection parts of the outer shell are usually connected by bolts to fix and assemble the motor. When installing and disassembling, it is often necessary to rotate and disassemble them independently in sequence. Multiple bolts are disassembled in sequence, which affects the disassembly and assembly efficiency of the staff and is not conducive to the quick disassembly and repair of the motor. Content of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a motor facilitating the disassembly and assembly of a rotor, which can improve the disassembly and assembly efficiency of the motor.

[0005] The motor facilitating the disassembly and assembly of a rotor according to an embodiment of the utility model includes:

[0006] A housing having a receiving cavity with an opening;

[0007] A stator received in the receiving cavity;

[0008] A rotor including a rotor body and a rotating shaft. The rotor body is rotatably disposed through the stator, and the rotor body is sleeved on the rotating shaft;

[0009] A cover body that can enter or exit the receiving cavity along the opening. The cover body is provided with a first avoidance hole, one end of the rotating shaft is disposed through the first avoidance hole, and a limiting groove is provided on the outer peripheral side of the cover body, and the limiting groove extends along the circumferential direction of the cover body;

[0010] The limiting mechanism includes a seat body assembly, an adjusting member, and at least two limiting members. The seat body assembly is disposed on the periphery of the opening. The seat body assembly is provided with an installation cavity and an avoidance channel. The installation cavity and the avoidance channel are coaxially arranged. The installation cavity is located outside the avoidance channel, and a sliding groove communicating with the avoidance channel is provided on the wall surface of the installation cavity. The cover body is inserted through the avoidance channel. At least two of the limiting members are arranged at intervals along the circumferential direction of the cover body. The limiting members are slidably disposed in the sliding groove so that one end of the limiting member can enter or exit the limiting groove. The adjusting member is rotatably disposed in the installation cavity. A linkage structure is provided between the adjusting member and the limiting member. Through the linkage structure, when the adjusting member rotates, it can drive one end of the limiting member to move in the direction of entering or exiting the limiting groove. When one end of the limiting member enters the limiting groove, one end of the limiting member can abut against the side wall of the limiting groove.

[0011] The motor for facilitating the disassembly and assembly of the rotor according to the embodiment of the present invention has at least the following beneficial effects:

[0012] When assembling the motor, first install the stator and the rotor in the accommodation cavity. Then, cover the cover body on the opening. Then rotate the adjusting member. The adjusting member drives at least two limiting members to move in the direction of entering the limiting groove through the linkage structure, so that one ends of at least two limiting members can enter the limiting groove and abut against the side walls of the limiting groove, thereby restricting the separation of the cover body from the housing. At least two limiting members are arranged at intervals along the circumferential direction of the cover body, and can stably fix the cover body. When disassembling the motor, the maintenance personnel can rotate the adjusting member in the reverse direction. The adjusting member drives at least two limiting members to move in the direction of exiting the limiting groove through the linkage structure. When one end of the limiting member exits the limiting groove, the maintenance personnel can disassemble the cover body to take out the rotor. The operation is simple, convenient and fast, and can abandon the traditional technical solution of assembling the housing and the cover body through multiple bolts, and can improve the disassembly and assembly efficiency of the motor.

[0013] According to some embodiments of the present invention, the linkage structure includes a waist-shaped hole provided on the adjusting member and a linkage shaft provided on the limiting member. Along the circumferential direction of the adjusting member, the minimum distance between the waist-shaped hole and the axis of the adjusting member gradually decreases. The linkage shaft is inserted through the waist-shaped hole and can abut against the side wall of the waist-shaped hole, so that when the adjusting member rotates, it can drive one end of the limiting member to enter or exit the limiting groove.

[0014] According to some embodiments of the present invention, the limiting mechanism further includes a transmission member. The transmission member is rotatably disposed in the installation cavity. A transmission structure is provided between the transmission member and the adjusting member. The transmission member drives the adjusting member to rotate through the transmission structure. The transmission member is provided with a screwing portion. The seat body assembly is provided with a second avoidance hole for avoiding the screwing portion.

[0015] According to some embodiments of the present utility model, the transmission structure includes a first gear portion provided on the transmission member and a second gear portion provided on the adjusting member, and the first gear portion meshes with the second gear portion.

[0016] According to some embodiments of the present utility model, the limiting mechanism further includes a damping member, and the damping member is provided between the transmission member and the seat body assembly to limit the rotation of the transmission member.

[0017] According to some embodiments of the present utility model, the transmission structure includes a worm portion provided on the transmission member and a worm wheel portion provided on the adjusting member, and the worm portion meshes with the worm wheel portion.

[0018] According to some embodiments of the present utility model, a first positioning groove is provided on the side wall of the accommodating cavity, and the stator is accommodated in the first positioning groove and can abut against the side wall of the first positioning groove.

[0019] According to some embodiments of the present utility model, a second positioning groove is provided on the side wall of the accommodating cavity, and the cover body is accommodated in the second positioning groove and can abut against the side wall of the second positioning groove.

[0020] According to some embodiments of the present utility model, a first abutting inclined surface is provided on one side of the limiting member close to the housing, and a second abutting inclined surface is provided on one side of the limiting groove close to the housing, and the first abutting inclined surface can abut against the second abutting inclined surface.

[0021] According to some embodiments of the present utility model, the seat body assembly includes a first seat body and a second seat body, the first seat body is provided at the periphery of the opening, the first seat body is detachably connected to the second seat body, and the first seat body and the second seat body enclose to form the installation cavity and the avoidance channel.

[0022] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following further describes the present utility model in conjunction with the drawings and embodiments, wherein:

[0024] Figure 1 is a schematic structural diagram of a motor for facilitating disassembly and assembly of a rotor according to an embodiment of the present utility model;

[0025] Figure 2 is an exploded view of a motor for facilitating disassembly and assembly of a rotor according to an embodiment of the present utility model;

[0026] Figure 3Schematic diagram of the internal structure of a motor facilitating the disassembly and assembly of a rotor according to an embodiment of the present utility model;

[0027] Figure 4 Schematic diagram of the structure of a limiting mechanism according to an embodiment of the present utility model;

[0028] Figure 5 Exploded view of a limiting mechanism according to an embodiment of the present utility model;

[0029] Figure 6 Top view of a limiting mechanism according to an embodiment of the present utility model;

[0030] Figure 7 is Figure 6 Cross-sectional view taken along line A-A in

[0031] Figure 8 is Figure 6 Cross-sectional view taken along line B-B in

[0032] Figure 9 Schematic diagram of the structure of a limiting mechanism according to an embodiment of the present utility model, in which the second seat body is hidden and one end of the limiting member retracts into the sliding groove;

[0033] Figure 10 Schematic diagram of the structure of a limiting mechanism according to an embodiment of the present utility model, in which the second seat body is hidden and one end of the limiting member extends out of the sliding groove;

[0034] Figure 11 Schematic diagram of the structure of a cover body according to an embodiment of the present utility model;

[0035] Figure 12 Schematic diagram of the structure of a limiting member according to an embodiment of the present utility model.

[0036] Reference numerals:

[0037] Housing 100, receiving cavity 110, opening 120, first positioning groove 130, second positioning groove 140, stator 200, rotor 300, rotor body 310, rotating shaft 320, cover body 400, first avoidance hole 410, limiting groove 420, second abutting slope 421, limiting mechanism 500, seat body assembly 510, installation cavity 511, avoidance channel 512, sliding groove 513, first seat body 514, second seat body 515, second avoidance hole 516, adjusting member 520, waist-shaped hole 521, second gear portion 522, limiting member 530, linkage shaft 531, first abutting slope 532, transmission member 540, first gear portion 541, screwing portion 542, damping member 550. Detailed implementation manners

[0038] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0039] In the description of the present utility model, it should be understood that with respect to the orientation description, such as the upper and lower directions, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0040] In the description of the present utility model, "a plurality of" means two or more. If the first and second are described, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence of the indicated technical features.

[0041] In the description of the present utility model, unless otherwise clearly defined, terms such as "arrangement", "installation", and "connection" should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0042] Refer to Figures 1 to 5 and in combination with Figure 9 、 Figure 10, a motor facilitating the disassembly and assembly of a rotor according to an embodiment of the present utility model, includes a housing 100, a stator 200, a rotor 300, a cover 400, and a limiting mechanism 500. The housing 100 is provided with a receiving cavity 110 having an opening 120. The stator 200 is accommodated in the receiving cavity 110. The rotor 300 includes a rotor body 310 and a rotating shaft 320. The rotor body 310 is rotatably disposed through the stator 200, and the rotor body 310 is sleeved on the rotating shaft 320. The cover 400 can enter or exit the receiving cavity 110 along the opening 120. The cover 400 is provided with a first avoidance hole 410, and one end of the rotating shaft 320 is disposed through the first avoidance hole 410. A limiting groove 420 is provided on the outer peripheral side of the cover 400, and the limiting groove 420 extends along the circumferential direction of the cover 400. The limiting mechanism 500 includes a seat body assembly 510, an adjusting member 520, and four limiting members 530. The seat body assembly 510 is disposed at the periphery of the opening 120. The seat body assembly 510 is provided with an installation cavity 511 and an avoidance channel 512. The installation cavity 511 and the avoidance channel 512 are coaxially arranged. The installation cavity 511 is located outside the avoidance channel 512, and a sliding groove 513 communicating with the avoidance channel 512 is provided on the wall surface of the installation cavity 511. The cover 400 is disposed through the avoidance channel 512. The four limiting members 530 are spaced along the circumferential direction of the cover 400. The limiting members 530 are slidably disposed in the sliding groove 513 so that one end of the limiting member 530 can enter or exit the limiting groove 420. The adjusting member 520 is rotatably disposed in the installation cavity 511. A linkage structure is provided between the adjusting member 520 and the limiting member 530. Through the linkage structure, when the adjusting member 520 rotates, it can drive one end of the limiting member 530 to move along the direction of entering or exiting the limiting groove 420. When one end of the limiting member 530 enters the limiting groove 420, one end of the limiting member 530 can abut against the side wall of the limiting groove 420. In this way, the maintenance personnel can rotate the adjusting member 520 to drive the limiting member 530 to move along the direction of approaching or departing from the limiting groove 420 to realize the installation and disassembly of the cover 400, which can facilitate the removal of the rotor 300, can abandon the traditional technical solution of assembling the housing 100 and the cover 400 with multiple bolts, and can improve the disassembly and assembly efficiency of the motor.

[0043] Specifically, when assembling the motor, first install the stator 200 and the rotor 300 in the accommodation cavity 110. After that, cover the cover body 400 on the opening 120. Then rotate the adjusting member 520. The adjusting member 520 drives the four limiting members 530 to move along the direction of entering the limiting groove 420 through the linkage structure, so that one end of the four limiting members 530 can enter the limiting groove 420 and abut against the side wall of the limiting groove 420, thereby restricting the separation of the cover body 400 from the housing 100. The four limiting members 530 are arranged at intervals along the circumferential direction of the cover body 400, and can stably fix the cover body 400. When disassembling the motor, the maintenance personnel can rotate the adjusting member 520 in the reverse direction. The adjusting member 520 drives the four limiting members 530 to move along the direction of exiting the limiting groove 420 through the linkage structure. When one end of the limiting member 530 exits the limiting groove 420, the maintenance personnel can disassemble the cover body 400 to take out the rotor 300. The operation is simple, convenient and fast, and can abandon the traditional technical solution of assembling the housing 100 and the cover body 400 through multiple bolts, and can improve the disassembly and assembly efficiency of the motor.

[0044] It should be noted that when one end of the limiting member 530 enters the limiting groove 420, one end of the limiting member 530 extends out of the sliding groove 513. When one end of the limiting member 530 exits the limiting groove 420, one end of the limiting member 530 retracts into the sliding groove 513, which will not be elaborated here.

[0045] It should be pointed out that the four limiting members 530 are evenly arranged at intervals along the circumferential direction of the cover body 400, and can fix the cover body 400 in all directions, thereby improving the installation stability of the cover body 400, which will not be limited here.

[0046] It should be noted that the number of the limiting members 530 can also be two, three or five, etc., which will not be limited here.

[0047] Refer to Figure 9 、 Figure 10 In this embodiment, the linkage structure includes a waist-shaped hole 521 provided on the adjusting member 520 and a linkage shaft 531 provided on the limiting member 530. Along the circumferential direction of the adjusting member 520, the minimum distance between the waist-shaped hole 521 and the axis of the adjusting member 520 gradually decreases. The linkage shaft 531 passes through the waist-shaped hole 521 and can abut against the side wall of the waist-shaped hole 521, so that one end of the limiting member 530 can enter or exit the limiting groove 420, so that when the adjusting member 520 rotates, it can drive multiple limiting members 530 to move at the same time, without sliding multiple limiting members 530 in sequence, which can simplify the operation steps of the maintenance personnel and thus improve the disassembly and assembly efficiency of the motor.

[0048] Specifically, the kidney-shaped holes 521 correspond to the limiting members 530 one by one. Along the circumferential direction of the adjusting member 520, the minimum distance between the kidney-shaped holes 521 and the axis of the adjusting member 520 gradually decreases. That is, in the radial direction of the adjusting member 520, the minimum distances between the two ends of the kidney-shaped holes 521 and the axis of the adjusting member 520 are different. When the maintenance personnel rotate the adjusting member 520, the side walls of each kidney-shaped hole 521 abut against the corresponding linkage shaft 531, so that the adjusting member 520 can drive the limiting member 530 to move in the direction of entering or exiting the limiting groove 420. There is no need to slide multiple limiting members 530 in sequence, which can simplify the operation steps of the maintenance personnel and thus improve the disassembly and assembly efficiency of the motor.

[0049] It should be noted that the positions of the kidney-shaped holes 521 and the linkage shafts 531 can be interchanged, that is, the kidney-shaped holes 521 are provided on the limiting members 530, and the linkage shafts 531 are provided on the adjusting member 520, which is not limited here.

[0050] It should be noted that the linkage structure can also be a structure in which a first connecting rod and a second connecting rod cooperate. One end of the first connecting rod is hinged to the adjusting member 520, the other end of the first connecting rod is hinged to one end of the second connecting rod, and the end of the second connecting rod far from the first connecting rod is hinged to the limiting member 530, so that the adjusting member 520 can also drive the limiting member 530 to move in the direction of entering or exiting the limiting groove 420, which is not limited here.

[0051] Refer to Figure 6 、 Figure 8 and Figure 9 In this embodiment, the limiting mechanism 500 further includes a transmission member 540. The transmission member 540 is rotatably provided in the installation cavity 511. A transmission structure is provided between the transmission member 540 and the adjusting member 520. The transmission member 540 drives the adjusting member 520 to rotate through the transmission structure. The transmission member 540 is provided with a screwing portion 542. The seat body assembly 510 is provided with a second avoidance hole 516 for avoiding the screwing portion 542, which can facilitate the user to drive the adjusting member 520 to rotate.

[0052] Specifically, the screwing portion 542 is a hole-shaped structure, and the cross-section of the screwing portion 542 is a non-circular structure. For example, the cross-section of the screwing portion 542 can be a regular hexagon or a regular quadrilateral, etc. By providing the transmission member 540, the maintenance personnel can use a screwing tool, such as an internal hexagon wrench. The screwing tool is inserted into the screwing portion 542 through the second avoidance hole 516 and can abut against the side wall of the screwing portion 542 to drive the transmission member 540 to rotate, which can facilitate the user to drive the adjusting member 520 to rotate.

[0053] It should be noted that the screwing part 542 can also be a convex structure, and the cross-section of the screwing part 542 is a non-circular structure. At this time, the screwing part 542 passes through the second avoidance hole 516, and the screwing part 542 extends out of the installation cavity 511. Maintenance personnel can use a screwing tool, such as an adjustable wrench, to rotate the screwing part 542 to drive the transmission part 540 to rotate. Details are not described here.

[0054] In this embodiment, the transmission structure includes a first gear part 541 provided on the transmission part 540 and a second gear part 522 provided on the adjusting part 520. The first gear part 541 meshes with the second gear part 522, which can improve the transmission stability between the transmission part 540 and the adjusting part 520.

[0055] Refer to Figure 2 、 Figure 8 In this embodiment, the limiting mechanism 500 further includes a damping member 550. The damping member 550 is provided between the transmission part 540 and the seat body assembly 510 to limit the rotation of the transmission part 540, which can increase the friction force received by the transmission part 540, making the transmission part 540 unable to rotate freely, can limit the free rotation of the adjusting part 520, and can improve the installation stability of the cover body 400.

[0056] Specifically, the damping member 550 can be a rubber pad. The damping member 550 is clamped between the transmission part 540 and the seat body assembly 510, which can increase the friction force received by the transmission part 540, making the transmission part 540 unable to rotate freely, can limit the free rotation of the adjusting part 520, and can improve the installation stability of the cover body 400.

[0057] In this embodiment, the transmission structure includes a worm part provided on the transmission part 540 and a worm gear part provided on the adjusting part 520. The worm part meshes with the worm gear part, so that the adjusting part 520 has a self-locking function, can limit the free rotation of the adjusting part 520, and can improve the installation stability of the cover body 400.

[0058] Specifically, when the adjusting part 520 rotates, the worm part converts the motion into force through the thread meshing with the worm gear part. In this process, due to the large thread angle of the worm part, the direction of the force received by the worm gear part will generate a component force along the axis of the worm gear part, and the direction of this component force is perpendicular to the tooth surface of the worm gear part, resulting in friction between the worm gear part and the worm part. The direction of this friction force is opposite to the rotation direction of the worm gear part. Therefore, in the absence of an external force, it is very difficult for the worm gear to actively drive the worm to rotate, realizing self-locking, which can limit the free rotation of the adjusting part 520 and can improve the installation stability of the cover body 400.

[0059] In this embodiment, a first positioning groove 130 is provided on the side wall of the accommodation cavity 110. The stator 200 is accommodated in the first positioning groove 130 and can abut against the side wall of the first positioning groove 130, so as to position the stator 200 in the accommodation cavity 110, facilitating the assembly of the stator 200.

[0060] In this embodiment, a second positioning groove 140 is provided on the side wall of the accommodation cavity 110. The cover body 400 is accommodated in the second positioning groove 140 and can abut against the side wall of the second positioning groove 140, which can facilitate positioning the cover body 400 in the accommodation cavity 110, so that the limiting groove 420 can be aligned with the limiting member 530.

[0061] In this embodiment, a positioning structure is provided between the cover body 400 and the seat body assembly 510. The positioning structure is used to position the relative position of the cover body 400 and the housing 100, facilitating the assembly of the cover body 400.

[0062] In this embodiment, the positioning structure includes a positioning protrusion provided on the side wall of the avoidance channel 512 and a third positioning groove provided on the cover body 400. The positioning protrusion is accommodated in the third positioning groove and can abut against the side wall of the third positioning groove, which can position the relative position of the cover body 400 and the housing 100, facilitating the assembly of the cover body 400.

[0063] Specifically, a plurality of positioning protrusions are configured, and a plurality of corresponding third positioning grooves are configured. The positioning protrusions are accommodated in the corresponding third positioning grooves and can abut against the side walls of the corresponding third positioning grooves, which can position the relative position of the cover body 400 and the housing 100, facilitating the assembly of the cover body 400.

[0064] It should be noted that the positions of the third positioning groove and the positioning protrusion can also be interchanged, that is, the third positioning groove is provided on the side wall of the avoidance channel 512, and the positioning protrusion is provided on the cover body 400, which is not limited herein.

[0065] It should be pointed out that the positioning structure can also be a structure in which a positioning pin cooperates with a positioning hole, which will not be elaborated herein.

[0066] Refer to Figure 11 、 Figure 12 In this embodiment, a first abutting inclined surface 532 is provided on the side of the limiting member 530 close to the housing 100, and a second abutting inclined surface 421 is provided on the side of the limiting groove 420 close to the housing 100. The first abutting inclined surface 532 can abut against the second abutting inclined surface 421, improving the installation stability of the cover body 400.

[0067] Specifically, due to machining errors in the position of the limit groove 420, when the limit groove 420 cannot be completely aligned with the limiting member 530, by providing an abutting inclined surface, when the limiting member 530 moves in the direction close to the limit groove 420, the first abutting inclined surface 532 can abut against the second abutting inclined surface 421 to limit the movement of the cover body 400 in the direction of exiting the accommodation cavity 110, thereby improving the installation stability of the cover body 400.

[0068] In this embodiment, the seat body assembly 510 includes a first seat body 514 and a second seat body 515. The first seat body 514 is provided at the periphery of the opening 120. The first seat body 514 is detachably connected to the second seat body 515. The first seat body 514 and the second seat body 515 enclose an installation cavity 511 and an avoidance channel 512, which is convenient for assembling the adjusting member 520, the transmission member 540, and the limiting member 530.

[0069] Specifically, the first seat body 514 and the second seat body 515 are detachably connected by fasteners. The fasteners can be components such as bolts or screws. The fasteners pass through the second seat body 515 and are in threaded cooperation with the first seat body 514, which is convenient for installing and disassembling the seat body assembly 510. Before installing the adjusting member 520, the transmission member 540, and the limiting member 530, disassemble the seat body assembly 510, then install the adjusting member 520, the transmission member 540, and the limiting member 530 on the first seat body 514. After that, close the second seat body 515 and relatively fix the first seat body 514 and the second seat body 515 through the fasteners, and the installation of the adjusting member 520, the transmission member 540, and the limiting member 530 can be completed. The operation is simple, convenient, and fast, which is convenient for assembling the adjusting member 520, the transmission member 540, and the limiting member 530.

[0070] Of course, in some other specific embodiments, the first seat body 514 and the second seat body 515 can also be detachably connected through a clamping structure, which will not be elaborated here.

[0071] The above has described the embodiments of the present invention in detail with reference to the drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art to which the present invention pertains, various changes can be made without departing from the gist of the present invention.

Claims

1. A motor facilitating disassembly and assembly of a rotor, characterized in that, include: The housing (100) is provided with a receiving cavity (110), wherein the receiving cavity (110) has an opening (120); a stator (200) accommodated in the accommodating cavity (110); The rotor (300) comprises a rotor body (310) and a rotating shaft (320), wherein the rotor body (310) is rotatably inserted into the stator (200), and the rotor body (310) is sleeved on the rotating shaft (320); The cover body (400) can enter or exit the accommodating cavity (110) along the opening (120), the cover body (400) is provided with a first avoidance hole (410), one end of the rotating shaft (320) is passed through the first avoidance hole (410), and the outer peripheral side of the cover body (400) is provided with a limiting groove (420); The limiting mechanism (500) comprises a seat assembly (510), an adjusting member (520) and at least two limiting members (530), wherein the seat assembly (510) is arranged on the periphery of the opening (120), the seat assembly (510) is provided with a mounting cavity (511) and an avoidance channel (512), the mounting cavity (511) and the avoidance channel (512) are coaxially arranged, the mounting cavity (511) is located outside the avoidance channel (512), and the wall surface of the mounting cavity (511) is provided with a sliding groove (513) connected to the avoidance channel (512), the cover body (400) is passed through the avoidance channel (512), and at least two limiting members (530) are arranged along the cover body (400). The limiting member (530) is arranged at circumferential intervals, and can be slidably arranged on the sliding groove (513) so that one end of the limiting member (530) enters or exits the limiting groove (420). The adjusting member (520) is rotatably arranged on the mounting cavity (511). A linkage structure is provided between the adjusting member (520) and the limiting member (530). Through the linkage structure, the adjusting member (520) can drive one end of the limiting member (530) to move in the direction of entering or exiting the limiting groove (420) when rotating. When one end of the limiting member (530) enters the limiting groove (420), one end of the limiting member (530) can abut against the side wall of the limiting groove (420).

2. The motor facilitating disassembly and assembly of a rotor according to claim 1, wherein: The linkage structure comprises a waist-shaped hole (521) provided on the adjusting member (520) and a linkage shaft (531) provided on the limiting member (530); along the circumference of the adjusting member (520), the minimum distance between the waist-shaped hole (521) and the axis of the adjusting member (520) gradually decreases; the linkage shaft (531) is passed through the waist-shaped hole (521) and can abut against the side wall of the waist-shaped hole (521), so that the adjusting member (520) can drive one end of the limiting member (530) to enter or exit the limiting groove (420) when rotating.

3. The motor facilitating disassembly and assembly of the rotor according to claim 2, wherein: The limiting mechanism (500) further includes a transmission member (540) rotatably disposed in the installation cavity (511). A transmission structure is provided between the transmission member (540) and the adjusting member (520). The transmission member (540) drives the adjusting member (520) to rotate through the transmission structure. The transmission member (540) is provided with a screwing portion (542). The seat body assembly (510) is provided with a second avoidance hole (516) for avoiding the screwing portion (542).

4. The motor with easy-to-disassemble rotor according to claim 3, characterized in that: The transmission structure includes a first gear portion (541) provided on the transmission member (540) and a second gear portion (522) provided on the adjusting member (520). The first gear portion (541) meshes with the second gear portion (522).

5. The motor with easy-to-disassemble rotor according to claim 4, characterized in that: The limiting mechanism (500) further includes a damping member (550) disposed between the transmission member (540) and the seat body assembly (510) to limit the rotation of the transmission member (540).

6. The motor with easily disassembled rotor according to claim 3, characterized in that: The transmission structure includes a worm portion provided on the transmission member (540) and a worm wheel portion provided on the adjusting member (520). The worm portion meshes with the worm wheel portion.

7. The motor with easy-to-disassemble rotor according to claim 1, characterized in that: The side wall of the accommodation cavity (110) is provided with a first positioning groove (130). The stator (200) is accommodated in the first positioning groove (130) and can abut against the side wall of the first positioning groove (130).

8. The motor facilitating disassembly and assembly of a rotor according to claim 1, characterized in that: The side wall of the accommodation cavity (110) is provided with a second positioning groove (140). The cover body (400) is accommodated in the second positioning groove (140) and can abut against the side wall of the second positioning groove (140).

9. The motor with easily disassembled rotor according to claim 1, characterized in that: One side of the limiting member (530) close to the housing (100) is provided with a first abutting inclined surface (532). One side of the limiting groove (420) close to the housing (100) is provided with a second abutting inclined surface (421). The first abutting inclined surface (532) can abut against the second abutting inclined surface (421).

10. The motor facilitating disassembly and assembly of a rotor according to claim 1, wherein: The seat body assembly (510) includes a first seat body (514) and a second seat body (515). The first seat body (514) is disposed on the periphery of the opening (120). The first seat body (514) is detachably connected to the second seat body (515). The first seat body (514) and the second seat body (515) enclose to form the installation cavity (511) and the avoidance channel (512).

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