A stator-rotor disassembling device of a permanent magnet synchronous motor

Abstract

This invention provides a stator-rotor separation device for a permanent magnet synchronous motor, comprising a frame on which an electrical control mechanism, a first separation mechanism for connecting the stator, and a second separation mechanism for connecting the rotor are mounted. The first separation mechanism can move along a first direction on the frame under the control of the electrical control mechanism, and the first and second separation mechanisms are distributed along the first direction. The second separation mechanism can move along a second direction on the frame or be fixed by a limiting mechanism; the second direction is perpendicular to the first direction. This invention, through the coordinated action of the limiting mechanism, the first separation mechanism, and the second separation mechanism, ensures the coaxiality of the stator and rotor during the separation process, preventing them from colliding and being damaged, thus achieving non-destructive separation.

Description

Technical Field

[0001] This utility model relates to the field of motor processing equipment technology, and in particular to a stator and rotor disassembly device for a permanent magnet synchronous motor. Background Technology

[0002] Permanent magnet synchronous motors have advantages such as high efficiency, high power density, high torque density, and high reliability, and are widely used in industries, transportation, and home appliances. Their structure includes a stator, rotor, housing, and end caps. The stator is composed of an iron core, coils, frame, and copper plates. The rotor is mainly composed of a rotor iron core and permanent magnets. Permanent magnets are assembled in the slots of the rotor iron core. There is a small air gap between the stator and the rotor, which allows the rotor to rotate freely under the action of magnetic force.

[0003] During the research and development phase of related products, the product structure may be changed based on the product performance test results. In order to make efficient use of resources, the permanent magnet synchronous motors that have been disassembled after the product testing is completed need to be disassembled, and the stator, rotor and other structures need to be separated and classified for recycling.

[0004] However, due to the effect of the permanent magnet, there is a magnetic field of a certain strength on the outer periphery of the rotor. During the process of manually separating the stator and rotor, the relevant structures will become skewed and offset due to uneven force. Since the air gap between the rotor and the stator is small, the skewed and offset structures will rub and collide with the structures near them, thereby affecting the integrity of the structure and performance (such as rust prevention and insulation) on the opposing surfaces of the stator and rotor. Utility Model Content

[0005] The purpose of this invention is to provide a stator and rotor separation device for a permanent magnet synchronous motor to solve the problems mentioned in the background art.

[0006] The technical solution of this utility model includes: a stator and rotor splitting device for a permanent magnet synchronous motor, comprising a device frame, on which are mounted an electrical control mechanism, a first splitting mechanism for connecting the stator and a second splitting mechanism for connecting the rotor. The first splitting mechanism can be controlled by the electrical control mechanism to move along a first direction on the device frame, and the first splitting mechanism and the second splitting mechanism are distributed along the first direction. The second splitting mechanism can move along a second direction on the device frame or be fixed by a limiting mechanism. The second direction is perpendicular to the first direction.

[0007] Preferably, the first splitting mechanism includes a linear drive component, a first linear module, a linkage locking component, a first clamping plate, and a second clamping plate. The linear drive component is used to drive the first linear module to move along the first direction. The linkage locking component connects the first clamping plate and the second clamping plate, and can drive the two to move towards or away from each other on the first linear module along a third direction, which is perpendicular to the first direction.

[0008] Preferably, the linear drive assembly includes a first electric cylinder, a guide rod, and a first guide sleeve. The piston rod of the first electric cylinder extends in the same direction as the guide rod, and the two are connected to the first linear module near the end of the second splitting mechanism. The end of the guide rod away from the second splitting mechanism is slidably inserted into the first guide sleeve, and the first guide sleeve is fixedly connected to the equipment frame.

[0009] Preferably, the first linear module includes a first guide rail extending along the third direction, a first slide block and a second slide block slidably connected to the first guide rail, and the linkage locking assembly includes a bidirectional lead screw rotatably connected to the first guide rail and a servo motor for driving the bidirectional lead screw to rotate. The first slide block and the second slide block are respectively threaded with two sets of threads with opposite directions on the bidirectional lead screw. The first clamping plate and the second clamping plate are respectively connected to the end faces of the first slide block and the second slide block near the second splitting mechanism.

[0010] Preferably, the linkage locking assembly includes a position sensor, which is disposed on the first guide rail, the first slide, or the second slide, and is connected to the electronic control mechanism via a signal.

[0011] Preferably, the second splitting mechanism includes a tray and a second linear module. The second linear module includes a second guide rail extending along the second direction and a third slide block slidably connected to the second guide rail. The tray is connected to the third slide block.

[0012] Preferably, the limiting mechanism includes a second electric cylinder and a first positioning pin. The piston rod of the second electric cylinder is connected to the first positioning pin and can drive the first positioning pin to move along the first direction to engage or disengage from the tray pin.

[0013] Preferably, the tray includes a first tray and a second tray that are detachably connected, the second tray being located between the first tray and the first splitting mechanism, and the first tray being connected to the third slide and the first positioning pin;

[0014] The second tray is provided with a push-pull handle, a second positioning pin and a limiting post. The first positioning pin, the second positioning pin and the limiting post extend in the same direction. The end of the limiting post away from the second tray is provided with a connecting stud or a connecting screw groove.

[0015] Preferably, the equipment frame is provided with a buffer extending along the second direction, one end of the buffer abutting the tray;

[0016] The buffer includes a buffer spring and / or a hydraulic damper.

[0017] Preferably, the equipment frame includes a first hanger, a placement platform, and a second hanger distributed along the first direction. The first hanger and the second hanger are respectively connected to the first splitting mechanism and the limiting mechanism, and the second splitting mechanism is located on the placement platform.

[0018] The beneficial effects of this utility model include at least the following: the center coaxiality of the first splitting mechanism and the second splitting mechanism is ensured by the limiting mechanism; the stator and rotor are separated by the first splitting mechanism that moves along the axis of the permanent magnet synchronous motor; the clamping action of the first splitting mechanism on the housing prevents the stator from tilting or shifting; and the stable connection between the tray and the end cover prevents the rotor from tilting or shifting. This ensures the coaxiality of the stator and rotor during the disassembly process, prevents them from colliding and being damaged, and achieves non-destructive disassembly. Attached Figure Description

[0019] Figure 1 This is a perspective structural diagram of an embodiment of the present utility model;

[0020] Figure 2 This is a side view of an embodiment of the present utility model;

[0021] Figure 3 This is a structural diagram of the first splitting mechanism in an embodiment of this utility model;

[0022] Figure 4 This is a top perspective view of the first linear module and the linkage locking component in the connected state in an embodiment of this utility model;

[0023] Figure 5 This is a structural diagram of the limiting mechanism in an embodiment of this utility model;

[0024] Figure 6 This is a side view of the second splitting mechanism in an embodiment of this utility model;

[0025] Figure 7 This is an appendix to the embodiments of this utility model. Figure 1 Enlarged view of the structure at point A in the middle.

[0026] In the picture:

[0027] 1. Equipment frame; 11. First hanger; 111. First mounting plate; 112. First support column; 12. Placement platform; 13. Second hanger; 131. Second mounting plate; 132. Second support column;

[0028] 2. Electrical control mechanism;

[0029] 3. First splitting mechanism; 31. Linear drive assembly; 311. First electric cylinder; 312. Guide rod; 313. First guide bushing; 32. First linear module; 321. First guide rail; 322. First slide; 323. Second slide; 33. Linkage locking assembly; 331. Bidirectional lead screw; 332. Servo motor; 333. Position sensor; 34. First clamping plate; 35. Second clamping plate; 36. Stiffening rib;

[0030] 4. Limiting mechanism; 41. Second electric cylinder; 42. First positioning pin;

[0031] 5. Second splitting mechanism; 51. Tray; 511. First pallet; 512. Positioning pin hole; 513. Positioning block; 514. Second pallet; 52. Push-pull handle; 53. Second positioning pin; 54. Limiting post; 55. Support platform; 551. Clearance groove; 56. Second linear module; 561. Second guide rail; 562. Third slide; 57. Buffer component;

[0032] 6. Second guide sleeve. Detailed Implementation

[0033] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Reference Appendix Figure 1-7 This utility model provides a stator and rotor splitting device for a permanent magnet synchronous motor, which includes a device frame 1, an electrical control mechanism 2, a first splitting mechanism 3, a limiting mechanism 4, and a second splitting mechanism 5. The electrical control mechanism 2, the first splitting mechanism 3, the limiting mechanism 4, and the second splitting mechanism 5 are mounted on the device frame 1. The electrical control mechanism 2 is used to control the operation of the device, and in particular, it controls the first splitting mechanism 3 to move along a first direction on the device frame 1. To facilitate a clear and concise explanation of this technical solution, this embodiment exemplifies that: the first direction is a vertical direction; the first splitting mechanism 3 and the second splitting mechanism 5 are distributed along the first direction, that is, the first splitting mechanism 3 and the second splitting mechanism 5 are distributed along the vertical direction; the second splitting mechanism 5 can move along a second direction on the device frame 1, or be fixed by the limiting mechanism 4; wherein: the second direction is perpendicular to the first direction. Based on the example that the first direction is a vertical direction, this embodiment exemplarily defines the second direction as a horizontal direction, that is, the second splitting mechanism 5 can move along a horizontal direction on the device frame 1, or be fixed by the limiting mechanism 4.

[0037] In the above-mentioned equipment, the first splitting mechanism 3 is used to directly or indirectly connect the stator, and the second splitting mechanism 5 is used to directly or indirectly connect the rotor. The second splitting mechanism 5 can move along the horizontal direction (i.e., the second direction) on the equipment frame 1 to a position that does not correspond to the first splitting mechanism 3, so that workers or robotic arms and other equipment can load and unload materials onto the second splitting mechanism 5 without obstruction. The second splitting mechanism 5 can also move along the horizontal direction (i.e., the second direction) to correspond to the first splitting mechanism 3, and then the limiting mechanism 4 is used to fix the second splitting mechanism 5 at the position corresponding to the first splitting mechanism 3, so as to ensure that the position of the second splitting mechanism 5 and the rotor connected thereto is stable during the separation of the stator and rotor. Then, through the control of the electronic control mechanism 2, the first splitting mechanism 3 is moved along the vertical direction (i.e., the first direction) and gradually moves away from the second splitting mechanism 5 to separate the stator and rotor.

[0038] By adopting the above technical solution, the center coaxiality of the first splitting mechanism 3 and the second splitting mechanism 5 is ensured by the limiting mechanism 4, and the positional stability of the second splitting mechanism 5 in the horizontal direction (i.e., the second direction) is ensured by the first splitting mechanism 3 moving in a straight line in the vertical direction (i.e., the first direction), thus ensuring the center coaxiality of the stator and rotor during the splitting process and avoiding the stator and rotor from tilting, shifting, and colliding with each other and being damaged.

[0039] To accommodate the distribution and installation requirements of the various structures in this embodiment, the equipment frame 1 in this embodiment includes at least a first hanger 11 and a placement platform 12. The first hanger 11 is located above the placement platform 12 and is used to house the first splitting mechanism 3. The placement platform 12 is used to house the second splitting mechanism 5. As the name suggests, the first hanger 11 should have a first mounting plate 111 suspended on the placement platform 12 to ensure that the bottom end of the first splitting mechanism 3 is at least partially located in the area between the first hanger 11 and the placement platform 12, so that it can directly or indirectly contact the stator. As an example, the first mounting plate 111 can be supported above the placement platform 12 by a first support column 112, and the first support column 112 should give way to the placement and movement space of the second splitting mechanism 5.

[0040] To facilitate operation and prevent stator or rotor deformation, when using this disassembly equipment to disassemble the stator and rotor, it is necessary to preserve the connection between the stator and the housing, and the connection between the rotor and the end cover. That is, when disassembling the permanent magnet synchronous motor, first disassemble the connection between the housing and the end cover, and then use the first disassembly mechanism 3 in this equipment to connect the housing and the second disassembly mechanism 5 to connect the end cover. This avoids the disassembly equipment being directly connected to the stator and rotor, which could cause deformation and damage to the stator and rotor. After disassembling the stator and rotor, the connection between the stator and the housing and the connection between the rotor and the end cover should be disassembled separately.

[0041] Based on the above-mentioned stator and rotor disassembly sequence and principles, this embodiment makes the following structural design for the first disassembly mechanism 3 (see attached diagram). Figure 3-4The first splitting mechanism 3 includes a linear drive assembly 31, a first linear module 32, a linkage locking assembly 33, a first clamping plate 34, and a second clamping plate 35. The linear drive assembly 31 is mounted on the first mounting plate 111 and is used to drive the first linear module 32 to move along a first direction. Since the first splitting mechanism 3 moves in the vertical direction (first direction) in this embodiment, the linear drive assembly 31 is used to drive the first linear module 32 to rise or fall. The first linear module 32 is located below the first mounting plate 111, and the linkage locking assembly 33 locks the first clamping plate 34 and the second clamping plate 35. 5 is connected to the first linear module 32. The linkage locking component 33 can drive the first clamping plate 34 and the second clamping plate 35 to move towards or away from each other along a third direction on the first linear module 32, or fix the first clamping plate 34 and the second clamping plate 35 at a certain position in the third direction. It is known that the first linear module 32 includes at least a first guide rail 321. In this embodiment, the first guide rail 321 extends along a third direction, and the third direction is perpendicular to the first direction. Since the first direction is vertical, the third direction is horizontal. The third direction can be parallel, intersecting or perpendicular to the second direction.

[0042] The operating principle of the first splitting mechanism 3 is as follows: when the permanent magnet synchronous motor is fixed on the second splitting mechanism 5 and the connection between the end cover and the housing is disassembled, the linear drive component 31 in the first splitting mechanism 3 drives the first linear module 32 to descend, so that the first linear module 32 approaches the second splitting mechanism 5 and the permanent magnet synchronous motor fixed on it; then, the linkage locking component 33 drives the first clamping plate 34 and the second clamping plate 35 to move towards each other, so that the first clamping plate 34 and the second clamping plate 35 approach and press against the side wall of the housing respectively; finally, the linear drive component 31 drives the housing and stator held by the first linear module 32, the first clamping plate 34 and the second clamping plate 35 to rise, so that they move away from the second splitting mechanism 5, thereby realizing the operation of separating the stator and rotor along the axial direction of the permanent magnet synchronous motor.

[0043] During the process of the first splitting mechanism 3 clamping the housing and the stator, in order to ensure the connection stability between the first splitting mechanism 3 and the housing, the first linear module 32 can be structurally designed as follows: The first linear module 32 includes a first guide rail 321, a first slide block 322 and a second slide block 323. The first guide rail 321 extends along a third direction, that is, the first guide rail 321 extends in the horizontal direction. However, the first guide rail 321 can be in the same direction as the movement of the second splitting mechanism 5 or different from the movement of the second splitting mechanism 5. The first slide block 322 and the second slide block 323 are slidably connected to the first guide rail 321 and can move along a third direction on the first guide rail 321 respectively. The linkage locking assembly 33 is designed as follows: The linkage locking assembly 33 includes a bidirectional lead screw 331 and a servo motor 332. The bidirectional lead screw 331 extends along a third direction and is rotatably connected to the first guide rail 321. The output shaft of the servo motor 332 is connected to the bidirectional lead screw 331 and can be driven to rotate by the control of the electronic control mechanism 2. The first slide 322 and the second slide 323 are respectively threaded with two sets of threads with opposite directions on the bidirectional lead screw 331. The first clamping plate 34 and the second clamping plate 35 are respectively connected to the end faces of the first slide 322 and the second slide 323 near the second splitting mechanism 5, that is, the first clamping plate 34 and the second clamping plate 35 are respectively connected to the bottom surfaces of the first slide 322 and the second slide 323.

[0044] When the servo motor 332 drives the bidirectional lead screw 331 to rotate, the first slide 322 and the second slide 323 move towards or away from each other, causing the first clamping plate 34 and the second clamping plate 35 to move towards or away from each other. When the first clamping plate 34 and the second clamping plate 35 move towards each other and abut against the outer wall of the housing, opposite forces can be applied to the housing from both sides outside the housing to stably clamp the housing and the stator. Due to the locking and limiting effect of the servo motor 332 and the bidirectional lead screw 331, the first clamping plate 34 and the second clamping plate 35 can be stably maintained at the position where the housing and the stator are clamped, which can ensure the coaxiality of the stator and the rotor during the separation process, avoid the skewing and offset that may occur due to uneven magnetic force when the stator and the rotor are separated, and avoid mutual damage between the two.

[0045] In addition, the linkage locking assembly 33 also includes a position sensor 333, which is mounted on the first guide rail 321, the first slide 322 or the second slide 323, and is connected to the electronic control mechanism 2 via a signal. The position sensor 333 is used to detect the position information of the first slide 322 and the second slide 323, and transmit the position information to the electronic control mechanism 2. The electronic control mechanism 2 adjusts the operating state of the servo motor 332 according to this position information to ensure the clamping stability of the first clamping plate 34 and the second clamping plate 35 on the housing.

[0046] To improve the connection stability between the first slide 322 and the first clamping plate 34, and the connection stability between the second slide 323 and the second clamping plate 35, this embodiment provides stiffening ribs 36 on the opposite sides of the first clamping plate 34 and the second clamping plate 35. The top of the stiffening ribs 36 are connected to the bottom surfaces of the first slide 322 and the second slide 323, respectively, to increase the contact area and improve the connection stability.

[0047] To ensure the smoothness and directional stability of the shell during the lifting process, this embodiment adopts the following structural design for the linear drive assembly 31: The linear drive assembly 31 includes a first electric cylinder 311, a guide rod 312, and a first guide bushing 313. The first guide bushing 313 is vertically mounted on the first mounting plate 111. The piston rod of the first electric cylinder 311 and the guide rod 312 extend in the same direction, penetrating the first mounting plate 111 vertically. The guide rod 312 slides vertically through the first guide bushing 313. The piston rod of the first electric cylinder 311 and the guide rod 312 are connected to the first linear module 32 near the end of the second splitting mechanism 5. The first electric cylinder 311 can be controlled by the electronic control mechanism 2 to drive the lifting and lowering of the first linear module 32, the first clamping plate 34, and the second clamping plate 35, while the guide rod 312 and the first guide bushing 313 can ensure the smoothness and directional stability of the aforementioned structures during the lifting and lowering process. In practice, the piston rod and guide rod 312 of the first electric cylinder 311 can be directly connected to the first guide rail 321, or a connecting plate can be set at the bottom end of the piston rod and guide rod 312 of the first electric cylinder 311, and the first guide rail 321 can be installed on the bottom surface of the connecting plate.

[0048] Based on the above-mentioned disassembly sequence and principle of the stator and rotor, this embodiment makes the following structural design for the second disassembly mechanism 5: The second disassembly mechanism 5 includes a tray 51 and a second linear module 56. The second linear module 56 includes a second guide rail 561 and a third slide block 562. The second guide rail 561 extends horizontally (i.e., in the second direction) on the placement platform 12. The third slide block 562 is slidably connected to the second guide rail 561. The tray 51 is located at the top of the third slide block 562 and can move along the second direction on the second guide rail 561 with the third slide block 562. This facilitates workers or robotic arms and other equipment to load and unload the tray 51 without obstruction outside the first disassembly mechanism 3, and avoids collisions between workers or robotic arms and other equipment in the narrow area between the first disassembly mechanism 3 and the second disassembly mechanism 5 and the structural components in this disassembly equipment.

[0049] To ensure the coaxiality of the centers of the first splitting mechanism 3 and the second splitting mechanism 5 after material loading and before disassembly, this embodiment makes the following structural design for the limiting mechanism 4 (see attached diagram). Figure 5The limiting mechanism 4 includes a second electric cylinder 41 and a first positioning pin 42. The piston rod of the second electric cylinder 41 is connected to the first positioning pin 42. The tray 51 has a positioning pin hole 512 pre-formed on it. The second electric cylinder 41 can be controlled by the electric control mechanism 2 to drive the first positioning pin 42 to move in the vertical direction (i.e., the first direction) and engage or disengage with the positioning pin hole 512 on the tray 51.

[0050] It should also be noted that this embodiment only exemplifies the relevant physical structural components and operating principles required to ensure the coaxiality of the centers of the first splitting mechanism 3 and the second splitting mechanism 5. The precise coordinate design of each structure to ensure the coaxiality of the centers of the first splitting mechanism 3 and the second splitting mechanism 5 can be calculated and determined by those skilled in the art according to actual needs (such as the specifications and shape of the permanent magnet synchronous motor), and no more specific limitations are made here.

[0051] To accommodate the distribution and installation requirements of the various structures in this embodiment, the equipment frame 1 in this embodiment should also include a second hanger 13. The second hanger 13 is used to install the second electric cylinder 41 and the first positioning pin 42. As the name suggests, the second hanger 13 should have a second mounting plate 131 suspended above or below the placement platform 12, with the area between the second mounting plate 131 and the placement platform 12 serving as the placement and movement space for the second electric cylinder 41 and the first positioning pin 42. Preferably, in order to avoid the various mechanisms above the placement platform 12 and to prevent the presence or movement of the second electric cylinder 41 and the first positioning pin 42 from affecting them, in this embodiment, the second mounting plate 131 is suspended below the placement platform 12 and connected to the bottom surface of the placement platform 12 by the second support column 132. A second guide sleeve 6 can be constructed on the placement platform 12. The position of the second guide sleeve 6 corresponds to that of the first positioning pin 42. The top end of the first positioning pin 42 passes through the second guide sleeve 6. The second guide sleeve 6 provides auxiliary guidance for the movement of the first positioning pin 42.

[0052] Reference Appendix Figure 6-7 To improve the applicability of this equipment, the pallet 51 is designed as follows in this embodiment: the pallet 51 includes a first pallet 511 and a second pallet 514 that are detachably connected. The area of ​​the first pallet 511 is larger than the area of ​​the second pallet 514. The second pallet 514 is located above the first pallet 511. Preferably, the first pallet 511 is connected by bolts. A positioning block 513 can be provided on the top surface of the first pallet 511 to facilitate the positioning and installation of the second pallet 514. With the above structural configuration, the second pallet 514 can be replaced according to different permanent magnet synchronous motors to be disassembled, so as to form accurate and stable positioning and limiting of the permanent magnet synchronous motors to be disassembled.

[0053] The aforementioned positioning pin hole 512 can be set on the first support plate 511, and the third slide block 562 can be connected to the bottom surface of the first support plate 511. When the first support plate 511 and the second support plate 514 are firmly connected, after the first positioning pin 42 is inserted into the positioning pin hole 512 on the first support plate 511, the position of the second support plate 514 can also be accurate and stable.

[0054] If manual loading and unloading is used, a push-pull handle 52 can be installed on the second pallet 514 to facilitate workers to push the pallet 51 by hand. If fully automatic loading and unloading is used, a third electric cylinder (not shown in the figure) or other equipment can be installed on the side of the pallet 51 to push and slide the pallet 51 by extending and retracting the piston rod of the third electric cylinder.

[0055] To ensure smooth separation of the stator and rotor, the end cover and rotor must be stably connected to the tray 51. Therefore, in this embodiment, a second positioning pin 53 and a limiting post 54 are also provided on the second tray 514. The first positioning pin 42, the second positioning pin 53 and the limiting post 54 extend in the same direction. The end of the limiting post 54 away from the second tray 514 is provided with a connecting stud or a connecting groove. The dispersed and distributed design of the second positioning pin 53 and the limiting post 54 can be configured according to the shape of the permanent magnet synchronous motor to be disassembled. Generally, in order to ensure the effective connection between the housing and the end cover, and the accurate positioning and effective connection between the permanent magnet synchronous motor and related products, the end cover and the housing should have corresponding positioning grooves or positioning protrusions and connecting screw holes respectively. In this embodiment, the second positioning pin 53 is used to assist workers or robotic arms and other equipment to accurately place the end cover on the second pallet 514 when loading. The connecting stud or connecting screw groove on the limiting post 54 is used to form an effective and stable connection with the end cover to prevent the rotor and the end cover from being unstable during the disassembly of the stator and rotor, which would result in ineffective disassembly or skew and offset, causing them to collide.

[0056] During implementation, the second positioning pin 53, the limiting post 54 and the second support plate 514 can be designed into several integrated modules according to the specifications or model of the permanent magnet synchronous motor. When disassembling the corresponding permanent magnet synchronous motor, the different integrated modules can be replaced on the first support plate 511, which can save replacement time and improve work efficiency.

[0057] Furthermore, since the permanent magnet synchronous motor has a certain mass, to improve the service life of the second positioning pin 53 and the limiting post 54, a support platform 55 can be set in the middle of the area enclosed by the first positioning pin 42 and the limiting post 54. The support platform 55 is provided with a relief groove 551 that matches the shape of the end cover. The support platform 55 provides the main load-bearing function, slowing down the wear rate of the first positioning pin 42 and the limiting post 54. Similarly, the support platform 55 can also form a customized integral module with the second support plate 514, and can be replaced as a whole on the first support plate 511.

[0058] Reference Appendix Figure 7 In this embodiment, a buffer 57 is also provided on the placement platform 12. The buffer 57 extends along the second direction, with one end abutting against the tray 51 to assist the limiting mechanism 4 in limiting the tray 51 and to prevent the tray 51 from sliding too fast and being damaged by collision.

[0059] The electronic control mechanism 2 used in this embodiment is existing technology, including but not limited to: control keys, power supply, cable harness and other structures, which can be selected and configured by those skilled in the art as needed, and will not be described in detail here.

[0060] In summary, the usage methods of this disassembly equipment include:

[0061] (1) Disassemble the connection between the housing and the end cover in the permanent magnet synchronous motor;

[0062] (2) Move the tray 51 along the second direction until it is separated from the part directly opposite the first splitting mechanism 3, place the permanent magnet synchronous motor on the tray 51, and securely connect the end cap to the tray 51.

[0063] (3) Move the tray 51 along the second direction until it is directly opposite the first splitting mechanism 3;

[0064] (4) Use the electric control mechanism 2 to start the second electric cylinder 41 so that the first positioning pin 42 is pinned to the tray 51;

[0065] (5) The first electric cylinder 311 is started by the electric control mechanism 2, so that the first clamping plate 34 and the second clamping plate 35 are lowered to the side of the permanent magnet synchronous motor.

[0066] (6) The servo motor 332 is started by the electronic control mechanism 2, so that the first clamping plate 34 and the second clamping plate 35 move towards each other and press against the side wall of the permanent magnet synchronous motor housing.

[0067] (7) The first electric cylinder 311 is started by the electric control mechanism 2, so that the first clamping plate 34, the second clamping plate 35 and the housing held by them rise until the stator and rotor are completely separated.

[0068] Then, the stator and rotor are cut into materials separately. At other workstations, existing equipment (such as screwdrivers) can be used to separate the stator from the housing and the rotor from the end cover.

[0069] Compared with the prior art, the beneficial effects of this utility model include at least the following: the center coaxiality of the first splitting mechanism 3 and the second splitting mechanism 5 is ensured by the limiting mechanism 4, the stator and rotor are separated by the first splitting mechanism 3 moving along the axis of the permanent magnet synchronous motor, the clamping action of the first splitting mechanism 3 on the housing prevents the stator from tilting or shifting, and the stable connection between the tray 51 and the end cover prevents the rotor from tilting or shifting. The coaxiality of the stator and rotor can be guaranteed during the disassembly process, and the two can be prevented from colliding and being damaged, thus achieving non-destructive disassembly.

[0070] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A stator and rotor separation device for a permanent magnet synchronous motor, characterized in that, The device includes a frame on which an electrical control mechanism, a first splitting mechanism for connecting a stator, and a second splitting mechanism for connecting a rotor are configured. The first splitting mechanism can be moved along a first direction on the frame under the control of the electrical control mechanism. The first splitting mechanism and the second splitting mechanism are distributed along the first direction. The second splitting mechanism can be moved along a second direction on the frame or fixed by a limiting mechanism. The second direction is perpendicular to the first direction.

2. The stator and rotor separation device for a permanent magnet synchronous motor according to claim 1, characterized in that, The first splitting mechanism includes a linear drive component, a first linear module, a linkage locking component, a first clamping plate, and a second clamping plate. The linear drive component is used to drive the first linear module to move along the first direction. The linkage locking component connects the first clamping plate and the second clamping plate, and can drive the two to move towards or away from each other on the first linear module along a third direction, which is perpendicular to the first direction.

3. The stator and rotor separation device for a permanent magnet synchronous motor according to claim 2, characterized in that, The linear drive assembly includes a first electric cylinder, a guide rod, and a first guide sleeve. The piston rod of the first electric cylinder extends in the same direction as the guide rod, and the ends of the two near the second splitting mechanism are connected to the first linear module. The end of the guide rod away from the second splitting mechanism is slidably inserted into the first guide sleeve, and the first guide sleeve is fixedly connected to the equipment frame.

4. The stator and rotor separation device for a permanent magnet synchronous motor according to claim 2 or 3, characterized in that, The first linear module includes a first guide rail extending along the third direction, a first slide block and a second slide block slidably connected to the first guide rail, and the linkage locking assembly includes a bidirectional lead screw rotatably connected to the first guide rail and a servo motor for driving the bidirectional lead screw to rotate. The first slide block and the second slide block are respectively threaded with two sets of threads with opposite directions on the bidirectional lead screw. The first clamping plate and the second clamping plate are respectively connected to the end faces of the first slide block and the second slide block near the second splitting mechanism.

5. The stator and rotor separation device for a permanent magnet synchronous motor according to claim 4, characterized in that, The linkage locking assembly includes a position sensor, which is disposed on the first guide rail, the first slide, or the second slide, and is connected to the electronic control mechanism via a signal.

6. The stator and rotor separation device for a permanent magnet synchronous motor according to any one of claims 1-3 and 5, characterized in that, The second splitting mechanism includes a tray and a second linear module. The second linear module includes a second guide rail extending along the second direction and a third slide block slidably connected to the second guide rail. The tray is connected to the third slide block.

7. The stator and rotor separation device for a permanent magnet synchronous motor according to claim 6, characterized in that, The limiting mechanism includes a second electric cylinder and a first positioning pin. The piston rod of the second electric cylinder is connected to the first positioning pin and can drive the first positioning pin to move along the first direction to engage or disengage from the tray pin.

8. The stator and rotor separation device for a permanent magnet synchronous motor according to claim 7, characterized in that, The tray includes a first tray and a second tray that are detachably connected. The second tray is located between the first tray and the first splitting mechanism. The first tray is connected to the third slide and the first positioning pin. The second tray is provided with a push-pull handle, a second positioning pin and a limiting post. The first positioning pin, the second positioning pin and the limiting post extend in the same direction. The end of the limiting post away from the second tray is provided with a connecting stud or a connecting screw groove.

9. The stator and rotor separation device for a permanent magnet synchronous motor according to claim 7 or 8, characterized in that, The equipment frame is provided with a buffer extending along the second direction, one end of which abuts against the tray; The buffer includes a buffer spring and / or a hydraulic damper.

10. The stator and rotor separation device for a permanent magnet synchronous motor according to claim 9, characterized in that, The equipment frame includes a first hanger, a placement platform, and a second hanger distributed along the first direction. The first hanger and the second hanger are respectively connected to the first splitting mechanism and the limiting mechanism. The second splitting mechanism is located on the placement platform.

Images