Lossless disassembling device for plastic package motor

Abstract

The invention relates to a plastic package motor lossless disassembling device which comprises a mounting platform used for placing a plastic package motor, and a clamping ring is arranged on a rotating shaft of the plastic package motor; the sliding mechanism is located on the side, provided with the rotating shaft, of the plastic packaging motor and comprises a sliding shaft, and a shaft buckle is arranged at the top of the sliding shaft and connected to the clamping ring; the lever mechanism is hinged to the sliding shaft and used for driving the sliding shaft to move in the axial direction, when the lever mechanism is driven, the sliding shaft and the rotating shaft are driven to move in the axial direction so that the rotating shaft can be pulled out, the end cover and the rotor of the plastic package motor can be pulled out synchronously, the end cover does not need to be clamped or pried, and parts such as the end cover and the rotor of the plastic package motor cannot be damaged; the lossless disassembly is realized; and the shaft buckle can be driven by the sliding shaft to move in the axial direction, so that the height of the shaft buckle can be moved to the positions of plastic package motor clamping rings of different specifications, mutual buckling of the clamping rings and the shaft buckle is achieved, and the plastic package motor disassembling device can be suitable for disassembling plastic package motors of different specifications.

Description

Technical Field

[0001] This invention relates to the field of motor technology, and in particular to a non-destructive disassembly device for encapsulated motors. Background Technology

[0002] Plastic-encapsulated motors refer to motors in which the stator windings, iron core, and other key components are encapsulated (potted) into a single unit using insulating materials such as epoxy resin, forming a sealed and robust structure. This is then assembled with the rotor, end caps, and other components to create a complete motor. Due to its excellent environmental adaptability, long lifespan, and low failure rate, it has become the mainstream choice for modern household air conditioners.

[0003] In the production of encapsulated motors, a certain percentage of products are defective. The main reason for these defects is the substandard quality of a specific internal component. Scrapping the entire motor would result in significant losses. Internal components such as the rotor, end covers, bearings, and injection-molded stator have high value and can be reused after passing inspection. Currently, manufacturers mostly disassemble defective products manually, using screwdrivers or similar tools to pry open the end covers and then pulling out the rotor and other components from the center of the stator windings. Because this is manual disassembly, it is physically demanding for employees and easily damages the end covers, causing deformation and scratches on the stator windings, making non-destructive disassembly impossible.

[0004] Therefore, it is necessary to design a non-destructive disassembly device to solve the above problems. Summary of the Invention

[0005] This invention provides a non-destructive disassembly device for encapsulated motors. The device pulls out the shaft of the encapsulated motor by pulling it out, and simultaneously pulls out the end cover and rotor of the encapsulated motor. There is no need to clamp or pry the end cover, and no damage is caused to the end cover, rotor and other components of the encapsulated motor, thus achieving non-destructive disassembly.

[0006] This invention provides a non-destructive disassembly device for encapsulated motors, comprising: An installation platform is provided for placing the encapsulated motor, and the shaft of the encapsulated motor is provided with a retaining ring; A sliding mechanism is located on the side of the encapsulated motor where the rotating shaft is located. The sliding mechanism includes a sliding shaft, and a shaft buckle is provided at the top of the sliding shaft. The shaft buckle is connected to the retaining ring. A lever mechanism is hinged to the sliding shaft. The lever mechanism is used to drive the sliding shaft to move axially. When the lever mechanism is driven, it drives the sliding shaft and the rotating shaft to move axially to pull out the rotating shaft and simultaneously pull out the end cover and rotor of the encapsulated motor.

[0007] In one embodiment, the lever mechanism includes: A pressure plate is disposed on at least one side of the sliding shaft, and the first end of the pressure plate is hinged to the support base; A first rotating shaft is disposed in the middle of the pressure plate, and the first rotating shaft is connected to the sliding shaft; and A handle is located at the second end of the pressure plate. When the handle is pressed, the pressure plate rotates around the support base, and the sliding shaft moves axially.

[0008] In one embodiment, the first end of the pressure plate is provided with a second rotating shaft, the second rotating shaft passes through the support base, and the pressure plate is hinged to the second rotating shaft.

[0009] In one embodiment, a retaining ring is provided at the end of the second rotating shaft, the retaining ring being located on the side of the pressure plate away from the support base, to prevent the second rotating shaft from falling off.

[0010] In one embodiment, the second end of the pressure plate is provided with a connecting block, and the handle is fixed on the connecting block.

[0011] In one embodiment, a force-applying rod is fitted onto the handle, and the force-applying rod is detachably connected to the handle. Pressing the handle with the force-applying rod drives the lever mechanism to rotate.

[0012] In one embodiment, the bottom of the sliding shaft is provided with an oil-free bushing, the oil-free bushing is coaxially arranged with the sliding shaft, and the sliding shaft is sleeved inside the oil-free bushing and can slide within the oil-free bushing.

[0013] In one embodiment, a first groove is formed radially inward on one side wall of the sliding shaft, the width of the first groove being greater than the diameter of the rotating shaft, so that the rotating shaft can enter the sliding shaft from the first groove.

[0014] In one embodiment, the buckle is fixed to the top of the sliding shaft, and a second groove is provided between the buckle and the sliding shaft. The width of the second groove is greater than the width of the first groove, so as to accommodate the retaining ring in the second groove.

[0015] In one embodiment, the lower part of the sliding shaft is a column, and the two opposite sides of the upper part are set as planes. The first groove is opened from one side of the plane to the other side, but does not penetrate the plane on the other side.

[0016] Compared with the prior art, the advantages of this invention are that by using a retaining ring to hold the shaft of the encapsulated motor, the shaft and the sliding shaft are relatively fixed. A lever mechanism drives the sliding shaft and the shaft to move axially, pulling out the shaft of the encapsulated motor and simultaneously pulling out the end cover and rotor. This invention pulls out the shaft of the encapsulated motor by a pulling method, simultaneously pulling out the end cover and rotor, without clamping or prying the end cover. This avoids damage to the end cover, rotor, and other components of the encapsulated motor, achieving non-destructive disassembly and thus enabling the removal of defective encapsulated motors. The disassembled end caps, rotors, and other components are recycled and reused, avoiding losses caused by direct scrapping. Furthermore, the shaft buckle is located at the top of the sliding shaft and can move axially under the drive of the sliding shaft. This allows the shaft buckle to be moved to the position of the retaining ring for different specifications of encapsulated motors, achieving mutual engagement between the retaining ring and the shaft buckle. This makes the non-destructive disassembly device of this invention applicable to the disassembly of encapsulated motors of different specifications. The axial movement of the sliding shaft and rotating shaft is driven by the operating lever mechanism, significantly reducing the workload of operators and making operation simple without the need for other tools. Attached Figure Description

[0017] The invention will now be described in more detail with reference to embodiments and the accompanying drawings.

[0018] Figure 1 This is a perspective view of the non-destructive disassembly device for encapsulated motors of the present invention; Figure 2 This is a perspective view of the non-destructive disassembly device for encapsulated motors of the present invention from another angle; Figure 3 This is a schematic diagram of the structure of the encapsulated motor of the present invention; Figure 4 This is a schematic diagram of the lever mechanism in the non-destructive disassembly device for encapsulated motors of the present invention; Figure 5 yes Figure 4 Side view; Figure 6 yes Figure 5 A magnified view of a section at point A in the middle; Figure 7 yes Figure 4 Front view; Figure 8 This is a schematic diagram of the sliding shaft in the non-destructive disassembly device for encapsulated motors of the present invention; Figure 9 This is a schematic diagram of the shaft buckle in the non-destructive disassembly device for encapsulated motors of the present invention.

[0019] Figure label: 1. Substrate; 2. Support columns; 3. Installation platform; 31. Notch; 4. Sliding shaft; 41. First groove; 42. Guide surface; 43. Column; 44. Plane; 5. Shaft buckle; 51. Second groove; 52. Mounting groove; 53. Third groove; 6. Lever mechanism; 61. Pressure plate; 611. Waist hole; 62. First rotating shaft; 63. Second rotating shaft; 64. Retaining ring; 65. Connecting block; 651. Positioning groove; 66. Handle; 67. Force rod; 7. Oil-free bushing; 8. Support base; 9. Encapsulated motor; 91. Shaft; 92. Snap ring. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0022] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0023] Plastic-encapsulated motors refer to motors in which the stator windings, iron core, and other key components are encapsulated (potted) into a single unit using insulating materials such as epoxy resin, forming a sealed and robust structure. This is then assembled with the rotor, end caps, and other components to create a complete motor. Due to its excellent environmental adaptability, long lifespan, and low failure rate, it has become the mainstream choice for modern household air conditioners.

[0024] During the production of encapsulated motors, a certain percentage of defective products exist. The main cause of these defects is the substandard quality of a specific internal component. Scrapping the entire motor would result in significant losses. Internal components such as the rotor, end covers, bearings, and injection-molded stator have high value and can be reused after passing inspection. Currently, manufacturers mostly disassemble defective products manually, using screwdrivers or similar tools to pry open the end covers and then pulling out the rotor and other components from the center of the stator windings. Because this is manual disassembly, it is physically demanding for workers and easily damages the end covers, causing deformation and scratches on the stator windings, making non-destructive disassembly impossible.

[0025] Therefore, this invention provides a non-destructive disassembly device for encapsulated motors, including a mounting platform 3 for placing an encapsulated motor 9, a sliding mechanism disposed below the mounting platform 3, and a lever mechanism 6 hinged to the sliding mechanism. By driving the lever mechanism 6 to rotate, the sliding mechanism slides up and down, thereby causing the shaft 91 of the encapsulated motor 9 to move downward, pulling the shaft 91 out of the encapsulated motor 9, and simultaneously pulling out the end cover and rotor of the encapsulated motor 9. This invention pulls out the shaft 91 of the encapsulated motor 9 by pulling, simultaneously pulling out the end cover and rotor, without clamping or prying the end cover, thus avoiding damage to the end cover, rotor, and other components of the encapsulated motor 9, achieving non-destructive disassembly. This allows for the recycling and reuse of the end cover, rotor, and other components disassembled from defective encapsulated motors 9, avoiding losses caused by direct scrapping.

[0026] Example 1 like Figure 1 and Figure 2 As shown, a support column 2 is provided below the mounting platform 3. The bottom of the support column 2 is fixed to the base plate 1, which is mounted on a workbench (not shown). The base plate 1 is fixedly connected to the workbench with screws, so that the height of the disassembly device is consistent with the human operating height, facilitating manual operation. There are four support columns 2, located at the four corners of the mounting platform 3, for supporting the mounting platform 3. A recess 31 is provided on one side of the mounting platform 3 to accommodate the encapsulated motor 9, which is placed on the mounting platform 3 through the recess 31. The recess 31 is U-shaped, extending from one side wall of the mounting platform 3 to the other side wall. The width of the recess 31 is smaller than the diameter of the encapsulated motor 9, so the encapsulated motor 9 can be placed on the upper surface of the mounting platform 3. When its shaft 91 is pulled out, the encapsulated motor 9 can be restrained on the mounting platform 3.

[0027] like Figure 3 The encapsulated motor 9 has a rotating shaft 91 inside, one end of which extends out of the encapsulated motor 91, and a retaining ring 92 is provided on the rotating shaft 91. The position of the retaining ring 92 varies depending on the type of encapsulated motor 9.

[0028] like Figure 1 and Figure 2 As shown, a sliding mechanism is provided below the mounting platform 3. The sliding mechanism is located on the side of the encapsulated motor 9 with the rotating shaft 91. In this embodiment, the rotating shaft 91 of the encapsulated motor 9 is set downwards, and the sliding mechanism is located below the encapsulated motor 9. The sliding mechanism includes a sliding shaft 4 and a shaft buckle 5 set on the top of the sliding shaft 4. The shaft buckle 5 is connected to the retaining ring 92, thereby fixing the sliding shaft 4 and the rotating shaft 91 together. When the sliding shaft 4 moves downwards, it drives the rotating shaft 91 to move downwards as well, thereby pulling the rotating shaft 91 out of the encapsulated motor 9 and simultaneously taking out the end cover and rotor of the encapsulated motor 9, realizing non-destructive disassembly.

[0029] The non-destructive disassembly device for encapsulated motors also includes a lever mechanism 6, which is hinged to the sliding shaft 4. The lever mechanism 6 is used to drive the sliding shaft 4 to move axially. When the lever mechanism 6 is driven, it drives the sliding shaft 4 and the rotating shaft 91 to move axially, so as to pull out the rotating shaft 91 and the end cover rotor and other components.

[0030] like Figure 2 , Figure 4 and Figure 7 As shown, in one embodiment, the lever mechanism 6 includes a pressure plate 61, a first rotating shaft 62, and a handle 66. The pressure plate 61 is disposed on at least one side of the sliding shaft 4, and the first end of the pressure plate 61 is hinged to the top of the support base 8, the bottom of the support base 8 being fixed to the base plate 1. The first rotating shaft 62 is disposed in the middle of the pressure plate 61 and is connected to the sliding shaft 4. In this embodiment, the first rotating shaft 62 passes through the hole in the sliding shaft 4, and the end of the first rotating shaft 62 extends out. The middle of the pressure plate 61 is provided with a waist hole 611, which is fitted onto the end of the first rotating shaft 62, so that the pressure plate 61 is hinged to the first rotating shaft 62. The second end of the pressure plate 61 is provided with a handle 66. When the handle 66 is pressed, the pressure plate 61 is driven to rotate around the support base 8. When the pressure plate 61 rotates, the first rotating shaft 62 will move in the waist hole 611. The waist hole 611 provides space for its movement. At the same time, the pressure plate 61 will move downward with the handle 66. The first rotating shaft 62 drives the sliding shaft 4 to move, which in turn drives the rotating shaft 91 to move downward, thereby pulling the rotating shaft 91 out from the plastic seal motor 9 and realizing non-destructive disassembly.

[0031] In one embodiment, the first end of the pressure plate 61 is provided with a second rotating shaft 63, which passes through the support base 8, so that the first end of the pressure plate 61 is hinged to the second rotating shaft 63, and the second rotating shaft 63 serves as the fulcrum of the lever mechanism 6.

[0032] like Figure 4 and Figure 7As shown, in one embodiment, a retaining ring 64 is provided at the end of the second rotating shaft 63. The retaining ring 64 is located on the side of the pressure plate 61 away from the support base 8 to prevent the second rotating shaft 63 from falling off. In this embodiment, the retaining ring 64 is an E-type retaining ring 64. The retaining ring 64 is fixed on the rotating shaft 91 and blocks the outside of the pressure plate 61, thereby preventing the second rotating shaft 63 from falling off the support base 8 or the pressure plate 61.

[0033] like Figure 2 and Figure 4 As shown, in one embodiment, the second end of the pressure plate 61 is provided with a connecting block 65, and a handle 66 is fixed on the connecting block 65. In this embodiment, the top of the connecting block 65 is fixedly connected to the handle 66 by bolts, and the bottom of the connecting block 65 is provided with a positioning groove 651. The width of the positioning groove 651 is the same as the width of the pressure plate 61, so that the second end of the pressure plate 61 is embedded in the positioning groove 651, realizing the initial positioning of the two. Then, the connecting block 65 and the pressure plate 61 are connected by bolts to realize the fixation of the two.

[0034] like Figure 1 As shown, in one embodiment, a force-applying rod 67 is sleeved on the handle 66. The force-applying rod 67 is detachably connected to the handle 66. Pressing the handle 66 with the force-applying rod 67 drives the lever mechanism 6 to rotate. Using a longer force-applying rod 67 for pressing makes the operation easier and less strenuous.

[0035] like Figure 4 As shown, in one embodiment, two pressure plates 61 are provided, located on both sides of the sliding shaft 4 respectively. The first ends of the two pressure plates 61 are connected by a second rotating shaft 63, and the second ends of the two pressure plates 61 are connected by a connecting block 65. Providing pressure plates 61 on both sides of the sliding shaft 4 makes the rotation of the lever mechanism 6 smoother. When the lever mechanism 6 drives the sliding mechanism to move, the force on the sliding shaft 4 is more balanced, preventing the sliding shaft 4 from tilting. In another embodiment, only one pressure plate 61 can be provided, located on one side of the sliding shaft 4, which can also achieve the function of the lever mechanism 6.

[0036] This invention uses a lever mechanism 6 to drive the sliding shaft 4 and the rotating shaft 91 to move axially. By utilizing the lever principle, it reduces the labor intensity during the disassembly process, significantly reduces the workload of operators, and is easy to operate without the need for other tools.

[0037] like Figures 5 to 8As shown, in one embodiment, the bottom of the sliding shaft 4 is provided with an oil-free bushing 7. The bottom of the oil-free bushing 7 is fixed to the base plate 1. The oil-free bushing 7 is coaxially arranged with the sliding shaft 4, and the sliding shaft 4 is sleeved in the oil-free bushing 7 and can slide within the oil-free bushing 7. By providing an oil-free bushing 7 at the bottom of the sliding shaft 4, the sliding shaft 4 can be restricted to move only along the axial direction, thereby restricting the direction in which the sliding shaft 4 pulls the rotating shaft 91 and avoiding damage to the components caused by the skewed pulling caused by the skewed pulling of the sliding shaft 4.

[0038] Example 2 like Figure 1 and Figure 2 As shown, a support column 2 is provided below the mounting platform 3. The bottom of the support column 2 is fixed to the base plate 1, which is mounted on a workbench (not shown). The base plate 1 is fixedly connected to the workbench with screws, so that the height of the disassembly device is consistent with the human operating height, facilitating manual operation. There are four support columns 2, located at the four corners of the mounting platform 3, for supporting the mounting platform 3. A recess 31 is provided on one side of the mounting platform 3 to accommodate the encapsulated motor 9, which is placed on the mounting platform 3 through the recess 31. The recess 31 is U-shaped, extending from one side wall of the mounting platform 3 to the other side wall. The width of the recess 31 is smaller than the diameter of the encapsulated motor 9, so the encapsulated motor 9 can be placed on the upper surface of the mounting platform 3. When its shaft 91 is pulled out, the encapsulated motor 9 can be restrained on the mounting platform 3.

[0039] like Figure 3 The encapsulated motor 9 has a rotating shaft 91 inside, one end of which extends out of the encapsulated motor 91, and a retaining ring 92 is provided on the rotating shaft 91. The position of the retaining ring 92 varies depending on the type of encapsulated motor 9.

[0040] like Figure 1 and Figure 2 As shown, a sliding mechanism is provided below the mounting platform 3. The sliding mechanism is located on the side of the encapsulated motor 9 with the rotating shaft 91. In this embodiment, the rotating shaft 91 of the encapsulated motor 9 is set downwards, and the sliding mechanism is located below the encapsulated motor 9. The sliding mechanism includes a sliding shaft 4 and a shaft buckle 5 set on the top of the sliding shaft 4. The shaft buckle 5 is connected to the retaining ring 92, thereby fixing the sliding shaft 4 and the rotating shaft 91 together. When the sliding shaft 4 moves downwards, it drives the rotating shaft 91 to move downwards as well, thereby pulling the rotating shaft 91 out of the encapsulated motor 9 and simultaneously taking out the end cover and rotor of the encapsulated motor 9, realizing non-destructive disassembly.

[0041] The non-destructive disassembly device for encapsulated motors also includes a lever mechanism 6, which is hinged to the sliding shaft 4. The lever mechanism 6 is used to drive the sliding shaft 4 to move axially. When the lever mechanism 6 is driven, it drives the sliding shaft 4 and the rotating shaft 91 to move axially, so as to pull out the rotating shaft 91 and the end cover rotor and other components.

[0042] like Figure 2 , Figure 4 and Figure 7 As shown, in one embodiment, the lever mechanism 6 includes a pressure plate 61, a first rotating shaft 62, and a handle 66. The pressure plate 61 is disposed on at least one side of the sliding shaft 4, and the first end of the pressure plate 61 is hinged to the top of the support base 8, the bottom of the support base 8 being fixed to the base plate 1. The first rotating shaft 62 is disposed in the middle of the pressure plate 61 and is connected to the sliding shaft 4. In this embodiment, the first rotating shaft 62 passes through the hole in the sliding shaft 4, and the end of the first rotating shaft 62 extends out. The middle of the pressure plate 61 is provided with a waist hole 611, which is fitted onto the end of the first rotating shaft 62, so that the pressure plate 61 is hinged to the first rotating shaft 62. The second end of the pressure plate 61 is provided with a handle 66. When the handle 66 is pressed, the pressure plate 61 is driven to rotate around the support base 8. When the pressure plate 61 rotates, the first rotating shaft 62 will move in the waist hole 611. The waist hole 611 provides space for its movement. At the same time, the pressure plate 61 will move downward with the handle 66. The first rotating shaft 62 drives the sliding shaft 4 to move, which in turn drives the rotating shaft 91 to move downward, thereby pulling the rotating shaft 91 out from the plastic seal motor 9 and realizing non-destructive disassembly.

[0043] In one embodiment, the first end of the pressure plate 61 is provided with a second rotating shaft 63, which passes through the support base 8, so that the first end of the pressure plate 61 is hinged to the second rotating shaft 63, and the second rotating shaft 63 serves as the fulcrum of the lever mechanism 6.

[0044] like Figure 4 and Figure 7 As shown, in one embodiment, a retaining ring 64 is provided at the end of the second rotating shaft 63. The retaining ring 64 is located on the side of the pressure plate 61 away from the support base 8 to prevent the second rotating shaft 63 from falling off. In this embodiment, the retaining ring 64 is an E-type retaining ring 64. The retaining ring 64 is fixed on the rotating shaft 91 and blocks the outside of the pressure plate 61, thereby preventing the second rotating shaft 63 from falling off the support base 8 or the pressure plate 61.

[0045] like Figure 2 and Figure 4 As shown, in one embodiment, the second end of the pressure plate 61 is provided with a connecting block 65, and a handle 66 is fixed on the connecting block 65. In this embodiment, the top of the connecting block 65 is fixedly connected to the handle 66 by bolts, and the bottom of the connecting block 65 is provided with a positioning groove 651. The width of the positioning groove 651 is the same as the width of the pressure plate 61, so that the second end of the pressure plate 61 is embedded in the positioning groove 651, realizing the initial positioning of the two. Then, the connecting block 65 and the pressure plate 61 are connected by bolts to realize the fixation of the two.

[0046] like Figure 1As shown, in one embodiment, a force-applying rod 67 is sleeved on the handle 66. The force-applying rod 67 is detachably connected to the handle 66. Pressing the handle 66 with the force-applying rod 67 drives the lever mechanism 6 to rotate. Using a longer force-applying rod 67 for pressing makes the operation easier and less strenuous.

[0047] like Figure 4 As shown, in one embodiment, two pressure plates 61 are provided, located on both sides of the sliding shaft 4 respectively. The first ends of the two pressure plates 61 are connected by a second rotating shaft 63, and the second ends of the two pressure plates 61 are connected by a connecting block 65. Providing pressure plates 61 on both sides of the sliding shaft 4 makes the rotation of the lever mechanism 6 smoother. When the lever mechanism 6 drives the sliding mechanism to move, the force on the sliding shaft 4 is more balanced, preventing the sliding shaft 4 from tilting. In another embodiment, only one pressure plate 61 can be provided, located on one side of the sliding shaft 4, which can also achieve the function of the lever mechanism 6.

[0048] This invention uses a lever mechanism 6 to drive the sliding shaft 4 and the rotating shaft 91 to move axially. By utilizing the lever principle, it reduces the labor intensity during the disassembly process, significantly reduces the workload of operators, and is easy to operate without the need for other tools.

[0049] like Figures 5 to 8 As shown, in one embodiment, the bottom of the sliding shaft 4 is provided with an oil-free bushing 7. The bottom of the oil-free bushing 7 is fixed to the base plate 1. The oil-free bushing 7 is coaxially arranged with the sliding shaft 4, and the sliding shaft 4 is sleeved in the oil-free bushing 7 and can slide within the oil-free bushing 7. By providing an oil-free bushing 7 at the bottom of the sliding shaft 4, the sliding shaft 4 can be restricted to move only along the axial direction, thereby restricting the direction in which the sliding shaft 4 pulls the rotating shaft 91 and avoiding damage to the components caused by the skewed pulling caused by the skewed pulling of the sliding shaft 4.

[0050] In one embodiment, a first groove 41 is formed radially inward on one side wall of the sliding shaft 4. The width of the first groove 41 is greater than the diameter of the rotating shaft 91, so that the rotating shaft 91 can enter the sliding shaft 4 through the first groove 41. In this embodiment, the first groove 41 is U-shaped, and the width and diameter of the first groove 41 are greater than the diameter of the rotating shaft 91, so that the rotating shaft 91 can be accommodated in the sliding shaft 4.

[0051] like Figure 6 and Figure 9As shown, in one embodiment, the shaft buckle 5 is fixed to the top of the sliding shaft 4. In this embodiment, the top of the shaft buckle 5 is provided with a mounting groove 52. The shaft buckle 5 is fixed to the top of the sliding shaft 4 by bolts in the mounting groove 52, so that the shaft buckle 5 and the sliding shaft 4 move synchronously. The shaft buckle 5 is provided with a third groove 53 corresponding to the first groove 41, so that the rotating shaft 91 can pass through. A second groove 51 is provided between the bearing and the sliding shaft 4. The width or diameter of the second groove 51 is greater than the width or diameter of the first groove 41, so as to accommodate the retaining ring 92 in the second groove 51. Since the shaft buckle 5 is fixedly connected to the sliding shaft 4, the shaft buckle 5 can move with the movement of the sliding shaft 4, so that the height of the shaft buckle 5 can be moved to the position of the retaining ring 92 of different specifications of encapsulated motor 9, so as to realize the mutual engagement of the retaining ring 92 and the shaft buckle 5, so that the non-destructive disassembly device of the present invention can be applied to the disassembly of encapsulated motor 9 of different specifications.

[0052] like Figure 4 As shown, the lower part of the sliding shaft 4 is a column 43, which cooperates with the oil-free bushing 7 to achieve relative sliding. The upper part of the sliding shaft 4 has two opposite sides set as planes 44. The first groove 41 is opened from one side of the plane 44 toward the other side, but does not penetrate the other side of the plane 44. By machining the upper part of the sliding shaft 4 into a plane 44, it is easier to machine the first groove 41, and it is also easier to move the rotating shaft 91 of the encapsulated motor 9 into the sliding shaft 4.

[0053] like Figure 1 As shown, in this embodiment, the opening direction of the first groove 41 is consistent with the opening direction of the recess 31 of the mounting platform 3. Therefore, when the encapsulated motor 9 to be disassembled is placed in the non-destructive disassembly device of the present invention, the encapsulated motor 9 is installed into the recess 31 from the opening direction of the recess 31. At this time, the rotating shaft 91 is installed into the first groove 41 from the opening of the first groove 41, which can facilitate the quick disassembly and assembly of the encapsulated motor 9.

[0054] like Figure 8 As shown, in one embodiment, the opening side of the first groove 41 is provided with a guide surface 42, which is an inclined surface. During the process of inserting the rotating shaft 91 into the first groove 41, the guide surface 42 guides the rotating shaft 91 to enter the first groove 41 more easily, and it is also less likely to damage the rotating shaft 91 or the sliding shaft 4.

[0055] This invention relates to a non-destructive disassembly device for encapsulated motors. In use, the encapsulated motor 9 is first inserted into the recess 31 from the opening direction. At this time, the encapsulated motor 9 is placed on the mounting platform 3 with its shaft 91 facing downwards. The shaft 91 enters the first groove 41 from the opening side, and simultaneously, the retaining ring 92 on the shaft 91 aligns with the second groove 51 on the shaft buckle 5, allowing the retaining ring 92 to enter the second groove 51. The sliding shaft 4 can drive the shaft buckle 5 to slide up and down, allowing the retaining ring 92 on the shaft 91 of encapsulated motors 9 of different specifications to engage with the shaft buckle 5. After the retaining ring 92 and the shaft buckle 5 are engaged, the force-applying rod 67 is fitted onto the handle 66, and then the force-applying rod 67 is pressed down. At this time, the lever mechanism 6 rotates downward around the second rotating shaft 63. The force of the force-applying rod 67 is transmitted to the sliding shaft 4, and then to the shaft buckle 5, causing the sliding shaft 4 and the shaft buckle 5 to move downward as a whole, thereby pulling down the rotating shaft 91. Under the force, the rotating shaft 91 is pulled out of the encapsulated motor 9, and simultaneously the end cover of the encapsulated motor 9 and the rotor connected to the rotating shaft 91 are pulled out. The entire disassembly process of this invention does not require clamping or prying the end cover, and will not cause damage to the end cover, rotor and other components of the encapsulated motor 9, thus achieving non-destructive disassembly. This allows for the recycling and reuse of the end cover, rotor and other components disassembled from defective encapsulated motors 9, avoiding excessive losses caused by direct scrapping.

[0056] Although the invention has been described with reference to preferred embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A plastic package motor lossless disassembly device, characterized in that, The utility model relates to a plastic package motor dismounting device, comprising: a mounting platform for placing the plastic package motor, the rotating shaft of the plastic package motor is provided with a snap ring; a sliding mechanism located at one side of the plastic package motor provided with the rotating shaft, the sliding mechanism comprising a sliding shaft, the top of the sliding shaft is provided with a shaft buckle, and the shaft buckle is connected to the snap ring; a lever mechanism hinged to the sliding shaft, the lever mechanism is used for driving the sliding shaft to move in the axial direction, when the lever mechanism is driven, the sliding shaft and the rotating shaft are driven to move in the axial direction to pull out the rotating shaft and synchronously pull out the end cover and the rotor of the plastic package motor.

2. The plastic-wrapped motor lossless disassembling device according to claim 1, wherein, The lever mechanism comprises: a pressing plate arranged on at least one side of the sliding shaft, the first end of the pressing plate is hinged to a support seat; a first rotating shaft arranged in the middle of the pressing plate, the first rotating shaft is connected to the sliding shaft; and a handle arranged on the second end of the pressing plate, when the handle is pressed, the pressing plate is driven to rotate around the support seat, and the sliding shaft is driven to move in the axial direction.

3. The plastic-wrapped motor lossless disassembling device according to claim 2, characterized in that, The first end of the pressing plate is provided with a second rotating shaft, the second rotating shaft penetrates the support seat, and the pressing plate is hinged to the second rotating shaft.

4. The plastic-wrapped motor lossless disassembling device according to claim 3, characterized in that, The end of the second rotating shaft is provided with a check ring, the check ring is located on the side of the pressing plate away from the support seat, so as to prevent the second rotating shaft from falling off.

5. The plastic-wrapped motor non-destructive disassembly device of claim 2, wherein, The second end of the pressing plate is provided with a connecting block, the handle is fixed on the connecting block.

6. The plastic-wrapped motor non-destructive disassembly device according to claim 2 or 5, characterized in that, A force adding rod is sleeved on the handle, the force adding rod is detachably connected to the handle, the handle is pressed through the force adding rod to drive the lever mechanism to rotate.

7. The plastic-wrapped electric machine lossless disassembling device according to claim 1, characterized in that, The bottom of the sliding shaft is provided with an oil-free bushing, the oil-free bushing is coaxially arranged with the sliding shaft, and the sliding shaft is sleeved in the oil-free bushing and can slide in the oil-free bushing.

8. The plastic-wrapped electric machine lossless disassembly device according to claim 1, characterized in that, A first groove is formed in the side wall of the sliding shaft in the radial direction, the width of the first groove is greater than the diameter of the rotating shaft, so that the rotating shaft enters the sliding shaft from the first groove.

9. The plastic-wrapped motor lossless disassembling device according to claim 8, characterized in that, The shaft buckle is fixed on the top of the sliding shaft, a second groove is formed between the shaft buckle and the sliding shaft, the width of the second groove is greater than the width of the first groove, so that the snap ring is accommodated in the second groove.

10. The plastic-wrapped motor non-destructive disassembly device of claim 9, wherein, The lower part of the sliding shaft is a column, and the upper part is provided with two opposite flat surfaces, the first groove is formed from one flat surface to the other flat surface and does not penetrate the other flat surface.

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