A rotor processing device of a permanent magnet synchronous motor

Abstract

This invention provides a rotor processing device for a permanent magnet synchronous motor. The rotor processing device includes: a processing table fixedly connected to the top of a support frame; support plates fixedly connected to both sides of the top of the processing table; fourth telescopic rods fixedly connected to opposite sides of the two support plates; limit plates fixedly connected to the telescopic ends of the two fourth telescopic rods; and two mounting shafts fixedly connected to the bottom of the adjacent ends of the two limit plates. A drag ring is rotatably connected to the outer surface of each mounting shaft. The rotor processing device for a permanent magnet synchronous motor provided by this invention allows the shafts at both ends of the rotor to contact the limit plates respectively, while the rotor's outer surface is clamped at the upper and lower positions by a drive wheel and an auxiliary wheel, reducing displacement during grinding and improving grinding accuracy.

Description

Technical Field

[0001] This invention relates to the field of permanent magnet synchronous motor rotor processing technology, and more particularly to a rotor processing device for permanent magnet synchronous motors. Background Technology

[0002] Permanent magnet synchronous motors use permanent magnets for excitation, which simplifies the motor structure, reduces processing and assembly costs, and eliminates the need for slip rings and brushes that are prone to problems, thus improving the reliability of motor operation. Furthermore, since no excitation current is required, there is no excitation loss, which improves the efficiency and power density of the motor.

[0003] A permanent magnet synchronous motor consists of components such as a stator, a rotor, and end covers. The rotor can be made solid or laminated. The rotor processing is mainly divided into grinding the outer and inner surfaces. First, the shaft is placed on a rotatable clamping structure, and then the outer surface of the rotating rotor is processed by grinding equipment.

[0004] The rotating clamping structure of the transmission holds the rotor by its shaft, and then drives the rotor to rotate through the contact between the drive wheel and the outer surface of the rotor. During the grinding process, forces in different directions will be generated, which can easily cause the rotor to shift, thus affecting the grinding accuracy of the rotor.

[0005] Therefore, it is necessary to provide a rotor processing device for permanent magnet synchronous motors to solve the above-mentioned technical problems. Summary of the Invention

[0006] This invention provides a rotor processing device for a permanent magnet synchronous motor, which solves the problem that the rotor displacement is easily caused by the different forces generated in different directions during the grinding process when the rotor is clamped by the rotation clamping structure of the transmission, thus affecting the progress of rotor grinding.

[0007] To solve the above-mentioned technical problems, the rotor processing device for permanent magnet synchronous motor provided by the present invention includes: a support frame;

[0008] A processing table is fixedly connected to the top of a support frame. Support plates are fixedly connected to the top of the processing table near both sides. A fourth telescopic rod is fixedly connected to the opposite side of each of the two support plates. Limiting discs are fixedly connected to the telescopic ends of the two fourth telescopic rods. Two mounting shafts are fixedly connected to the bottom of the adjacent ends of the two limiting discs. A drag ring is rotatably connected to the outer surface of each mounting shaft. Mounting buckles are installed on the adjacent sides of the two support plates via support rods. A locking block is installed inside each mounting buckle. A grinding disc is installed on one side of each locking block. Mounting bolts are rotatably connected to the front of each locking block. An internal threaded bracket is threaded onto the outer surface of each mounting bolt. A third telescopic rod is installed at the bottom of the processing table. An auxiliary wheel is rotatably connected to the telescopic end of the third telescopic rod via a mounting bracket.

[0009] A protective cover is fixedly connected to the top of the processing table. A grinding device is installed on the back of the inside of the protective cover via a second telescopic rod. A first telescopic rod is installed on the top of the inner wall of the protective cover. A drive wheel is installed on the telescopic end of the first telescopic rod via a rotating frame. A drive assembly is installed on one side of the top of the rotating frame, and a stabilizing rod is installed on the other side of the top of the rotating frame.

[0010] Reference for shaft mounting position Figure 3 The drag rings are mounted on the outer surface of the mounting shafts via bearings. Two mounting shafts are mounted on each limit plate, with a certain gap between them. This creates a gap between every two drag rings, ensuring the rotor shaft is held in place and prevents it from falling off. The shape of the mounting clips is referenced. Figure 3 The mounting buckle has an opening on the front for the internal threaded bracket to engage. By adjusting the position of the internal threaded bracket, the locking block can be fixed inside the mounting buckle. The grinding equipment includes a drive motor and a grinding wheel. The grinding wheel can be adjusted left and right to facilitate grinding different areas of the rotor's outer surface. The second telescopic rod is fixed by a frame. (See details...) Figure 2 The stabilizer bar runs through the top of the protective cover, increasing the stability of the rotating frame as it moves up and down. It can be removed if the grinding disc is not needed.

[0011] Preferably, the drive assembly includes a mounting housing, a motor is installed inside the mounting housing, and a transmission housing is installed on one side of the mounting housing;

[0012] Transmission housing position reference Figure 2 .

[0013] Preferably, a pulley is installed at the output end of the motor, and a belt is provided on the outer surface of the pulley;

[0014] The pulley is also installed on the outer surface of the shaft at one end of the drive wheel, and both pulleys are located inside the transmission housing. The pulley on the motor and the pulley on the drive wheel shaft are connected by belt drive.

[0015] Preferably, a control box is installed on one side of the support frame, and a door is rotatably connected to one side of the control box.

[0016] Preferably, a fixed base is installed on the front of the processing table, a control switch is installed on the front of the fixed base, and a lighting lamp is installed on the top of the inner wall of the protective cover via the mounting base.

[0017] The control switch can control the operation of the equipment on the processing table. The control switch can be a touch screen or a button. There is a baffle on the front of the protective cover at the bottom, and it has an opening for sweeping out debris.

[0018] Preferably, an air intake hood is installed on the back of the protective cover, and an exhaust pipe is installed on the back of the air intake hood;

[0019] The other end of the exhaust pipe is connected to one side of the filter box.

[0020] Preferably, a filter box is installed on the back of the processing table near one side, and a filter plate is installed inside the filter box by a snap-fit ​​mechanism;

[0021] The top of the filter box is bolted with a cover for easy cleaning of the filter plates.

[0022] Preferably, a protective shell is installed on the back of the processing table near the other side, and an air pump is installed inside the protective shell;

[0023] The protective shell also has ventilation holes.

[0024] Preferably, the inlet of the air pump is equipped with a connecting pipe, and the outlet of the air pump is equipped with a discharge pipe;

[0025] The other end of the connecting pipe is connected to the other side of the filter box, and the other end of the discharge pipe is connected to the exhaust pipe.

[0026] Compared with related technologies, the rotor processing device for permanent magnet synchronous motors provided by the present invention has the following advantages:

[0027] Beneficial effects:

[0028] This invention provides a rotor processing device for a permanent magnet synchronous motor. To prevent rotor displacement during processing and improve processing progress, two support plates are first installed on the top of the processing table. Then, two fourth telescopic rods are installed on opposite sides of the two support plates. Simultaneously, two limiting discs with two mounting shafts are installed on the telescopic ends of the two fourth telescopic rods. Each mounting shaft has a rotatable drag ring connected to its outer surface via bearings, with a certain gap between the two drag rings to support the shafts at both ends of the rotor. Then, a mounting buckle is installed between the two support plates via support rods. Finally, two grinding discs capable of grinding the inner surface of the rotating shaft are installed inside the mounting buckle via clamping blocks, allowing the grinding discs to grind the inner surface of the shaft. The grinding disc can be adjusted in height as needed. After adjustment, it is fixed in place by mounting bolts and an internal threaded bracket. An auxiliary wheel is installed on the top of the processing table via a third telescopic rod and a mounting bracket. The drive wheel is then installed inside the protective cover via a first telescopic rod and a rotating bracket, aligning its position with the auxiliary wheel. This allows the drive wheel and auxiliary wheel, along with two limiting discs, to clamp the rotor and both ends of the shaft without affecting rotor rotation. This mechanism ensures that the shafts at both ends of the rotor contact the limiting discs, while the rotor's outer surface is clamped at the top and bottom positions by the drive wheel and auxiliary wheel. This reduces displacement during grinding and improves grinding accuracy. Attached Figure Description

[0029] Figure 1 A schematic diagram of a preferred embodiment of the rotor processing apparatus for a permanent magnet synchronous motor provided by the present invention;

[0030] Figure 2 A schematic diagram of the structure of the second telescopic rod is provided for this invention;

[0031] Figure 3 Provided for the present invention Figure 2 An enlarged view of point A shown;

[0032] Figure 4 Provided for the present invention Figure 2 An enlarged view of point B shown;

[0033] Figure 5 A schematic diagram of the motor structure is provided for this invention;

[0034] Figure 6 A schematic diagram of the intake hood is provided for this invention;

[0035] Figure 7 A schematic diagram of the filter plate structure is provided for this invention;

[0036] Figure 8 A schematic diagram of the air pump is provided for this invention.

[0037] Numbered in the diagram: 1. Support frame, 2. Control box, 3. Box door, 4. Processing table, 5. Protective cover, 6. Suction hood, 7. Stabilizing bar, 8. First telescopic bar, 9. Lighting lamp, 10. Mounting base, 11. Rotating frame, 12. Control switch, 13. Fixed base, 14. Second telescopic bar, 15. Mounting frame, 16. Third telescopic bar, 17. Auxiliary wheel, 18. Fourth telescopic bar, 19. Support plate, 20. Support bar, 21. Mounting shaft, 22. Air pump 23. Limiting disc, 24. Drag ring, 25. Mounting buckle, 26. Clamping block, 27. Grinding disc, 28. Internal threaded bracket, 29. Mounting bolt, 30. Grinding equipment, 31. Drive assembly, 311. Motor, 312. Mounting housing, 313. Transmission housing, 314. Pulley, 315. Belt, 32. Drive wheel, 33. Exhaust pipe, 34. Filter box, 35. Protective housing, 36. Connecting pipe, 37. Discharge pipe, 38. Filter plate, 39. Buckle. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0039] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 ,in, Figure 1 A schematic diagram of a preferred embodiment of the rotor processing apparatus for a permanent magnet synchronous motor provided by the present invention; Figure 2 A schematic diagram of the structure of the first telescopic rod is provided for this invention; Figure 3 Provided for the present invention Figure 2 An enlarged view of point A shown; Figure 4 Provided for the present invention Figure 2 An enlarged view of point B shown; Figure 5 A schematic diagram of the motor structure is provided for this invention;

[0040] Figure 6 A schematic diagram of the intake hood is provided for this invention; Figure 7 A schematic diagram of the filter plate structure is provided for this invention; Figure 8 A schematic diagram of the air pump is provided for this invention. The rotor processing device for the permanent magnet synchronous motor includes: a support frame 1;

[0041] A processing table 4 is fixedly connected to the top of the support frame 1. Support plates 19 are fixedly connected to the top of the processing table 4 near both sides. A fourth telescopic rod 18 is fixedly connected to the opposite side of the two support plates 19. Limiting discs 23 are fixedly connected to the telescopic ends of the two fourth telescopic rods 18. Two mounting shafts 21 are fixedly connected to the bottom of the adjacent ends of the two limiting discs 23. A drag ring 24 is rotatably connected to the outer surface of the mounting shafts 21. Mounting buckles 25 are installed on the adjacent side of the two support plates 19 through support rods 20. A locking block 26 is installed inside the mounting buckle 25. A grinding disc 27 is installed on one side of the locking block 26. Mounting bolts 29 are rotatably connected to the front of the locking block 26. An internal threaded bracket 28 is threaded to the outer surface of the mounting bolts 29. A third telescopic rod 16 is installed at the bottom of the processing table 4. An auxiliary wheel 17 is rotatably connected to the telescopic end of the third telescopic rod 16 through a mounting frame 15.

[0042] A protective cover 5 is fixedly connected to the top of the processing table 4. A grinding device 30 is installed on the back of the inside of the protective cover 5 through a second telescopic rod 14. A first telescopic rod 8 is installed on the top of the inner wall of the protective cover 5. A drive wheel 32 is installed on the telescopic end of the first telescopic rod 8 through a rotating frame 11. A drive assembly 31 is installed on one side of the top of the rotating frame 11. A stabilizing rod 7 is installed on the top of the rotating frame 11 near the other side.

[0043] Reference for the position of mounting shaft 21 Figure 3 The drag ring 24 is mounted on the outer surface of the mounting shaft 21 via bearings. Two mounting shafts 21 are mounted on each limiting plate 23, with a certain gap between the two mounting shafts 21, thus ensuring a certain gap between every two drag rings 24. This gap can hold the rotor shaft in place and prevent it from falling off. The shape of the mounting buckle 25 is referenced. Figure 3 The mounting buckle 25 has an opening on its front for the internal threaded bracket 28 to be inserted. By adjusting the position of the internal threaded bracket 28, the locking block 26 can be fixed inside the mounting buckle 25. The grinding device 30 includes a drive motor and a grinding wheel. The grinding wheel can be adjusted left and right to facilitate grinding different parts of the rotor's outer surface. The second telescopic rod 14 is fixed by a frame. See details. Figure 2 The stabilizer bar 7 runs through the top of the protective cover 5, increasing the stability of the rotating frame 11 as it moves up and down. If the grinding disc 27 is not needed, it can be removed. The function of the grinding disc 27 is to synchronously grind the inner surface during the rotor rotation to improve the grinding efficiency.

[0044] The drive assembly 31 includes a mounting housing 312, a motor 311 is installed inside the mounting housing 312, and a transmission housing 313 is installed on one side of the mounting housing 312.

[0045] Reference position of transmission housing 313 Figure 2 The mounting housing 312 has holes for auxiliary heat dissipation.

[0046] The output end of the motor 311 is equipped with a pulley 314, and a belt 315 is provided on the outer surface of the pulley 314.

[0047] Pulley 314 is also mounted on the outer surface of the shaft at one end of the drive wheel 32, and both pulleys 314 are located inside the transmission housing 313. The pulley 314 on the motor 311 and the pulley 314 on the shaft of the drive wheel 32 are connected by belt 315.

[0048] A control box 2 is installed on one side of the support frame 1, and a box door 3 is rotatably connected to one side of the control box 2;

[0049] The door 3 is equipped with a lock, and the control box 2 has an internal power switch.

[0050] A fixed base 13 is installed on the front of the processing table 4, and a control switch 12 is installed on the front of the fixed base 13. A lighting lamp 9 is installed on the top of the inner wall of the protective cover 5 through the mounting base 10.

[0051] The control switch 12 can control the operation of the equipment on the processing table 4. The control switch 12 can be a touch screen or a button. The front of the protective cover 5 has a baffle at the bottom and has an opening for sweeping out debris.

[0052] An air intake hood 6 is installed on the back of the protective cover 5, and an exhaust pipe 33 is installed on the back of the air intake hood 6.

[0053] The protective cover 5 has an opening at the position where the air intake cover 6 is installed, and the other end of the exhaust pipe 33 is connected to one side of the filter box 34.

[0054] A filter box 34 is installed on the back of the processing table 4 near one side, and a filter plate 38 is installed inside the filter box 34 by means of a buckle 39.

[0055] The top of the filter box 34 is bolted with a cover for easy cleaning of the filter plate 38. At least two filter plates 38 can be installed to filter particles of different sizes.

[0056] A protective shell 35 is installed on the back of the processing table 4 near the other side, and an air pump 22 is installed inside the protective shell 35.

[0057] The protective shell 35 also has ventilation holes, and the air pump 22 provides suction to assist in exhaust.

[0058] The air pump 22 has a connecting pipe 36 installed at its inlet and a discharge pipe 37 installed at its outlet.

[0059] The other end of the connecting pipe 36 is connected to the other side of the filter box 34, and the other end of the discharge pipe 37 is connected to the exhaust pipe, so that the filtered air can be discharged directly.

[0060] The working principle of the rotor processing device for permanent magnet synchronous motors provided by this invention is as follows:

[0061] First, install two support plates 19 on the top of the processing table 4. Then, install two fourth telescopic rods 18 on the opposite sides of the two support plates 19. At the same time, install two limiting discs 23 with two mounting shafts 21 on the telescopic ends of the two fourth telescopic rods 18 respectively. A drag ring 24 is rotatably connected to the outer surface of each mounting shaft 21 via bearings, with a certain gap between the two drag rings 24 to support the shafts at both ends of the rotor. Then, simply install the mounting buckle 25 between the two support plates 19 via the support rod 20. Next, install two grinding discs 27, which can grind the inner surface of the rotating shaft, inside the mounting buckle 25 via the clamping block 26, allowing the grinding discs 27 to be adjusted in height as needed. After adjustment, fix them in place using mounting bolts 29 and internal threaded brackets 28. Finally, install an auxiliary wheel 17 on the top of the processing table 4 via the third telescopic rod 16 and mounting bracket 15. Then, install the drive wheel 32 inside the protective cover 5 via the first telescopic rod 8 and rotating bracket 11, allowing it to... The auxiliary wheel 17 is positioned accordingly, so the rotor and both ends of the shaft can be clamped by the drive wheel 32 and the auxiliary wheel 17 in conjunction with the two limiting discs 23 without affecting the rotation of the rotor. In actual use, it is only necessary to place the shafts at both ends of the rotor between the two sets of drag rings 24 respectively, and adjust the position of the grinding disc 27 so that it contacts the inner surface of the rotor. Then, the third telescopic rod 16 is activated to push the auxiliary wheel 17 to contact the bottom position of the outer surface of the rotor. Then, the first telescopic rod 8 is activated to drive the drive wheel 32 to move downwards so that it contacts the top position of the outer surface of the rotor. The second telescopic rod 14 is activated to adjust the distance between the grinding equipment and the outer surface of the rotor at the back position. After preparation, it is only necessary to drive the drive wheel 32 to rotate by the drive assembly 31, so that the rotor can rotate above the drag rings 24. The inner and outer surfaces of the rotor can be ground by the grinding equipment 30 and the grinding disc 27. After the grinding is completed, the four telescopic rods are reset, and the processed rotor can be removed.

[0062] Compared with related technologies, the rotor processing device for permanent magnet synchronous motors provided by the present invention has the following advantages:

[0063] Beneficial effects:

[0064] To prevent rotor displacement during processing and improve processing progress, two support plates 19 are first installed on the top of the processing table 4. Then, two fourth telescopic rods 18 are installed on the opposite sides of the two support plates 19. Simultaneously, two limiting discs 23 with two mounting shafts 21 are installed on the telescopic ends of the two fourth telescopic rods 18. Each mounting shaft 21 has a rotatable drag ring 24 connected to its outer surface via bearings, with a certain gap between the two drag rings 24 to support the shafts at both ends of the rotor. Next, the mounting buckle 25 is installed between the two support plates 19 via the support rod 20. Finally, two grinding discs 27, capable of grinding the inner surface of the rotating shaft, are installed inside the mounting buckle 25 via the locking block 26, allowing the grinding discs 27 to be adjusted as needed. After the height is adjusted, it is fixed by mounting bolts 29 and internal thread bracket 28. An auxiliary wheel 17 is installed on the top of the processing table 4 by the third telescopic rod 16 and mounting bracket 15. The drive wheel 32 is installed inside the protective cover 5 by the first telescopic rod 8 and rotating bracket 11, so that its position corresponds to the auxiliary wheel 17. Thus, the two ends of the rotor and shaft can be clamped by the drive wheel 32 and auxiliary wheel 17 in conjunction with the two limiting discs 23 without affecting the rotation of the rotor. Through this mechanism, the shafts at both ends of the rotor are in contact with the limiting discs 23 respectively. The rotor's outer surface is clamped by the drive wheel 32 and auxiliary wheel 17 at the upper and lower positions, which reduces displacement during grinding and helps to improve the accuracy of grinding.

[0065] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A rotor processing device for a permanent magnet synchronous motor, characterized in that, include: Support frame; A processing table is fixedly connected to the top of a support frame. Support plates are fixedly connected to the top of the processing table near both sides. A fourth telescopic rod is fixedly connected to the opposite side of each of the two support plates. Limiting discs are fixedly connected to the telescopic ends of the two fourth telescopic rods. Two mounting shafts are fixedly connected to the bottom of the adjacent ends of the two limiting discs. A drag ring is rotatably connected to the outer surface of each mounting shaft. Mounting buckles are installed on the adjacent sides of the two support plates via support rods. A locking block is installed inside each mounting buckle. A grinding disc is installed on one side of each locking block. Mounting bolts are rotatably connected to the front of each locking block. An internal threaded bracket is threaded onto the outer surface of each mounting bolt. A third telescopic rod is installed at the bottom of the processing table. An auxiliary wheel is rotatably connected to the telescopic end of the third telescopic rod via a mounting bracket. A protective cover is fixedly connected to the top of the processing table. A grinding device is installed on the back of the inside of the protective cover via a second telescopic rod. A first telescopic rod is installed on the top of the inner wall of the protective cover. A drive wheel is installed on the telescopic end of the first telescopic rod via a rotating frame. A drive assembly is installed on one side of the top of the rotating frame, and a stabilizing rod is installed on the other side of the top of the rotating frame.

2. The rotor processing apparatus for a permanent magnet synchronous motor according to claim 1, characterized in that, The drive assembly includes a mounting housing, inside which a motor is installed, and on one side of the mounting housing is a transmission housing.

3. The rotor processing apparatus for a permanent magnet synchronous motor according to claim 2, characterized in that, The output end of the motor is equipped with a pulley, and a belt is provided on the outer surface of the pulley.

4. The rotor processing apparatus for a permanent magnet synchronous motor according to claim 1, characterized in that, A control box is mounted on one side of the support frame, and a door is rotatably connected to one side of the control box.

5. The rotor processing apparatus for a permanent magnet synchronous motor according to claim 1, characterized in that, A fixed base is installed on the front of the processing table, and a control switch is installed on the front of the fixed base. A lighting lamp is installed on the top of the inner wall of the protective cover via the mounting base.

6. The rotor processing apparatus for a permanent magnet synchronous motor according to claim 1, characterized in that, An air intake hood is installed on the back of the protective cover, and an exhaust pipe is installed on the back of the air intake hood.

7. The rotor processing apparatus for a permanent magnet synchronous motor according to claim 1, characterized in that, A filter box is installed on the back of the processing table near one side, and a filter plate is installed inside the filter box by clips.

8. The rotor processing apparatus for a permanent magnet synchronous motor according to claim 1, characterized in that, A protective shell is installed on the back of the processing table near the other side, and an air pump is installed inside the protective shell.

9. The rotor processing apparatus for a permanent magnet synchronous motor according to claim 8, characterized in that, The air pump has a connecting pipe installed at its inlet and a discharge pipe installed at its outlet.

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