A rotor embedding device of a permanent magnet motor
By introducing a gantry and a power mechanism into the permanent magnet motor rotor embedding device, the problems of electric telescopic rod tilting and insufficient adaptability of clamping parts are solved, achieving a more stable clamping effect with multi-size adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN TOSHIBA LOCOMOTIVE ELECTRIC EQUIP CO LTD
- Filing Date
- 2025-09-12
- Publication Date
- 2026-08-04
AI Technical Summary
In existing permanent magnet motor rotor embedding devices, the electric telescopic rod lacks a stable structure, causing it to tilt, and the motor clamping component can only clamp motors of a fixed size.
The electric push cylinder is supported by a gantry frame, combined with a power mechanism and a stabilizer frame for limiting. Four-point support is achieved through a clamping assembly consisting of a slider, a support block, and clamping wheels, which can accommodate motors of different sizes.
It improves the stability of the electric push cylinder, expands its clamping adaptability, and can accommodate permanent magnet motors of more sizes.
Smart Images

Figure CN224596322U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of permanent magnet motor technology, and in particular to a rotor embedding device for a permanent magnet motor. Background Technology
[0002] The rotor embedding device of a permanent magnet motor (usually referring to the permanent magnet embedding device) is a key process equipment in the motor manufacturing process. It is used to accurately, efficiently and safely install permanent magnets (usually sintered NdFeB, ferrite or samarium cobalt, etc.) into the magnetic slots of the rotor core. In the prior art, Chinese patent document with application number: 202322410341.3 discloses a rotor embedding device for a permanent magnet motor.
[0003] However, due to structural defects, the above technical solution still has the following problems: 1. The rotor embedding device uses an electric telescopic rod to push the embedded rotor, but the output end of the electric telescopic rod has no limiting structure, and it is easy to tilt under force during the extended pressure process; 2. The motor clamping component uses an arc-shaped structure for clamping. The arc shape of the motor clamping component is fixed, which means that it can only clamp permanent magnet motors of fixed size. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing electric telescopic rods, which lack a stable structure and can only clamp permanent magnet motors of fixed size, and to propose a rotor embedding device for permanent magnet motors.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A rotor embedding device for a permanent magnet motor includes a base, and the rotor embedding device for the permanent magnet motor further includes: Gantry frame, the gantry frame is bolted to the top of the base; The rotor embedding assembly includes an electric push cylinder and a stabilizer frame. The bottom of the electric push cylinder is bolted to the top of the gantry frame, and the hole at the top of the stabilizer frame is bolted to the output end of the electric push cylinder. Both sides of the stabilizer frame are slidably connected to the surface of the gantry frame. The permanent magnet motor clamping assembly includes a slider, a support block, an arc frame, and clamping wheels. There are two sliders, two support blocks, and two arc frames. The top of the slider is bolted to the bottom of the support block, and the bottom of the arc frame is bolted to the top of the support block. There are four clamping wheels, and the axis of two clamping wheels is rotatably connected to the notches on both sides of the arc frame. The power mechanism is connected to the slider. The stabilizer limits and stabilizes the output end of the electric push cylinder and guides the electric push cylinder to prevent it from tilting under force. The four clamping rollers can form four-point support for the housing of the permanent magnet motor, eliminating the need for wrapping support and increasing the adaptability of the four clamping rollers, allowing it to clamp permanent magnet motors of more sizes.
[0006] As a preferred embodiment of this utility model, the power mechanism includes a linear motor, a rack, a pinion, and a transmission assembly. The output end of the linear motor is bolted to one end of the rack, the teeth of the rack mesh with the teeth of the pinion, and the pinion is keyed to the transmission assembly.
[0007] Furthermore, the power supply to the linear motor is turned on. The power supply can be an external or internal power source, and it is controlled by a controller. The linear motor can drive the rack to move, the rack can drive the pinion to rotate, and the pinion can drive the transmission component to rotate.
[0008] As a preferred embodiment of this utility model, the transmission assembly includes a rotating shaft, a transmission frame, and hinge rods. The center of the pinion is keyed to the bottom end of the rotating shaft surface, and the middle end of the rotating shaft surface is keyed to the hole in the middle of the transmission frame. Two hinge rods are provided, both of which are hinged to the transmission frame and to the slider.
[0009] Furthermore, the pinion can drive the rotating shaft to rotate, the rotating shaft can drive the transmission frame to rotate, the transmission frame and the hinge rod are eccentrically connected, the transmission frame can drive the hinge rod to move, and the hinge rod can drive the slider to move.
[0010] In a preferred embodiment of this utility model, the surface of the linear motor is bolted to the interior of the base, and the rack is slidably connected to the base.
[0011] Furthermore, the linear motor is fixed to the base to ensure its stability, and the rack is guided by a slide rail that slides between the rack and the base.
[0012] In a preferred embodiment of this utility model, the top and bottom ends of the rotating shaft are both rotatably connected to the inside of the base, and the rotating shaft is located in the middle of the base.
[0013] Furthermore, the rotating shaft is rotatably mounted on the base via bearings, ensuring the smoothness of the shaft's rotation and facilitating the shaft's drive of the transmission frame.
[0014] As a preferred embodiment of this utility model, a support platform is bolted to the middle of the top of the base, and the top of the support platform has an opening for receiving.
[0015] Furthermore, the support platform can support the motor, and the receiving port facilitates the movement of the rotor.
[0016] In a preferred embodiment of this utility model, the surface of the slider is slidably connected to the groove at the top of the base, and the bottom of the support block is slidably connected to the top of the base.
[0017] Furthermore, the slider is slidably set with the base via a slide groove, and the slider and the base are guided by a slide rail. The support block is slidably set with the base via a slide rail, which guides the support block.
[0018] Beneficial effects: 1. The electric push cylinder is supported by the gantry frame. During the up and down movement of the electric push cylinder, the stabilizer frame stabilizes the output end of the electric push cylinder to prevent the output end of the electric push cylinder from being tilted due to force. 2. The power mechanism can drive the slider to move, the slider can drive the support block to move, the support block can drive the arc frame and the clamping wheels to move, and the four clamping wheels form four fulcrums; In this utility model: the stabilizer limits and stabilizes the output end of the electric push cylinder, guides the electric push cylinder to prevent it from tilting after being subjected to force, and the four clamping wheels can form four-point support for the housing of the permanent magnet motor, eliminating the need for wrapping support and increasing the adaptability of the four clamping wheels, allowing it to clamp permanent magnet motors of more sizes. Attached Figure Description
[0019] Figure 1 This is a perspective view of the rotor embedding device for a permanent magnet motor proposed in this utility model. Figure 2 A perspective view of the power mechanism of a rotor embedding device for a permanent magnet motor proposed in this utility model; Figure 3 A perspective view of the arc-shaped frame of the rotor embedding device for a permanent magnet motor proposed in this utility model; Figure 4 This is a perspective view of the base of a rotor embedding device for a permanent magnet motor proposed in this utility model.
[0020] In the diagram: 1. Base; 2. Gantry frame; 3. Electric push cylinder; 4. Stabilizer; 5. Linear motor; 6. Rack; 7. Pinion; 8. Shaft; 9. Transmission frame; 10. Hinge rod; 11. Slider; 12. Support block; 13. Arc frame; 14. Clamping wheel; 15. Bearing platform. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Example 1 Reference Figure 1-4A rotor embedding device for a permanent magnet motor includes a base 1, and the rotor embedding device for the permanent magnet motor further includes: Gantry 2 is bolted to the top of base 1; The rotor embedding assembly includes an electric push cylinder 3 and a stabilizer 4. The bottom of the electric push cylinder 3 is bolted to the top of the gantry 2, and the hole at the top of the stabilizer 4 is bolted to the output end of the electric push cylinder 3. Both sides of the stabilizer 4 are slidably connected to the surface of the gantry 2. The permanent magnet motor clamping assembly includes a slider 11, a support block 12, an arc frame 13, and clamping wheels 14. There are two sliders 11, two support blocks 12, and two arc frames 13. The top of the slider 11 is bolted to the bottom of the support block 12, and the bottom of the arc frame 13 is bolted to the top of the support block 12. There are four clamping wheels 14. The axis of two clamping wheels 14 is rotatably connected to the notches on both sides of the arc frame 13. The power mechanism is connected to the slider 11. The stabilizer 4 limits and stabilizes the output end of the electric push cylinder 3 and guides the electric push cylinder 3 to prevent it from tilting under force. The four clamping wheels 14 can form four-point support for the housing of the permanent magnet motor. There is no need for wrapping support, which can increase the adaptability of the four clamping wheels 14 and allow it to clamp permanent magnet motors of more sizes.
[0023] In order to drive the transmission components to rotate, such as Figure 2 As shown, the power mechanism includes a linear motor 5, a rack 6, a pinion 7, and a transmission assembly. The output end of the linear motor 5 is bolted to one end of the rack 6. The teeth of the rack 6 mesh with the teeth of the pinion 7. The pinion 7 is keyed to the transmission assembly. When the power supply to the linear motor 5 is turned on, the power supply can be an external power supply or an internal power supply, and it is controlled by a controller. The linear motor 5 can drive the rack 6 to move, the rack 6 can drive the pinion 7 to rotate, and the pinion 7 can drive the transmission assembly to rotate.
[0024] In order to move slider 11, such as Figure 2 As shown, the transmission assembly includes a rotating shaft 8, a transmission frame 9, and a hinge rod 10. The shaft center of the pinion 7 is keyed to the bottom end of the surface of the rotating shaft 8, and the middle end of the surface of the rotating shaft 8 is keyed to the hole in the middle of the transmission frame 9. There are two hinge rods 10, both of which are hinged to the transmission frame 9. The hinge rods 10 are also hinged to the slider 11. The pinion 7 can drive the rotating shaft 8 to rotate, and the rotating shaft 8 can drive the transmission frame 9 to rotate. The transmission frame 9 and the hinge rod 10 have an eccentric structure. The transmission frame 9 can drive the hinge rod 10 to move, and the hinge rod 10 can drive the slider 11 to move.
[0025] To stabilize the linear motor 5 and the rack 6, such as Figure 2As shown, the surface of the linear motor 5 is bolted to the inside of the base 1, and the rack 6 is slidably connected to the base 1. The linear motor 5 is fixed by the base 1 to ensure the stability of the linear motor 5. The rack 6 is slidably set with the base 1 through the slide rail to guide the rack 6.
[0026] To reduce the shaking during the rotation of shaft 8, such as Figure 2 As shown, the top and bottom ends of the rotating shaft 8 are rotatably connected to the inside of the base 1. The rotating shaft 8 is located in the middle of the base 1. The rotating shaft 8 is rotatably connected to the base 1 through bearings to ensure the smooth rotation of the rotating shaft 8 and facilitate the rotating shaft 8 to drive the transmission frame 9 to rotate.
[0027] To support the motor, such as Figure 4 As shown, a support platform 15 is bolted to the middle of the top of the base 1. The top of the support platform 15 has a receiving opening, which can support the motor and facilitates the movement of the rotor.
[0028] In order to guide slider 11, such as Figure 4 As shown, the surface of the slider 11 is slidably connected to the groove on the top of the base 1, the bottom of the support block 12 is slidably connected to the top of the base 1, the slider 11 is slidably set to the base 1 through the groove, the slider 11 and the base 1 are guided by a slide rail, and the support block 12 is slidably set to the base 1 through the slide rail to guide the support block 12.
[0029] Example 2 The difference between this embodiment and Embodiment 1 is that the linear motor 5, rack 6 and pinion 7 are replaced with a rotary motor. The rotary motor can drive the rotating shaft 8 to rotate, but the rotary motor requires high control precision. Therefore, this application preferably uses the linear motor 5, rack 6 and pinion 7.
[0030] It should be noted that the specific model of electric push cylinder 3 and linear motor 5 used should be selected by those skilled in the art. Furthermore, the electric push cylinder 3 and linear motor 5 mentioned above are all existing technologies and will not be elaborated upon in this solution.
[0031] The working principle of this utility model is as follows: The housing of the permanent magnet motor is placed on the support platform 15 of the base 1. The power supply of the linear motor 5 is connected. The power supply can be an external power supply or an internal power supply, and it is controlled by a controller. The linear motor 5 can drive the rack 6 to move, the rack 6 can drive the pinion 7 to rotate, the pinion 7 can drive the rotating shaft 8 to rotate, and the rotating shaft 8 can drive the transmission frame 9 to rotate. The transmission frame 9 and the hinge rod 10 have an eccentric structure. The transmission frame 9 can drive the hinge rod 10 to move, and the hinge rod 10 can drive the slider 1. 1. The slider 11 can drive the support block 12 to move, and the support block 12 can drive the arc frame 13 and clamping wheel 14 to move. The four clamping wheels 14 form four fulcrums to limit the stator housing of the permanent magnet motor. The structure of the output end of the electric push cylinder 3 adopts the buffer pad of the existing technology to apply pressure to the rotor and press the rotor into the stator. The electric push cylinder 3 is supported by the gantry frame 2. During the up and down movement of the electric push cylinder 3, the stabilizing frame 4 stabilizes the output end of the electric push cylinder 3 to prevent the output end of the electric push cylinder 3 from being tilted by force.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A rotor embedding device for a permanent magnet motor, comprising a base (1), characterized in that, The rotor embedding device of the permanent magnet motor also includes: Gantry frame (2), the gantry frame (2) is bolted to the top of the base (1); The rotor embedding assembly includes an electric push cylinder (3) and a stabilizer (4). The bottom of the electric push cylinder (3) is bolted to the top of the gantry (2). The hole at the top of the stabilizer (4) is bolted to the output end of the electric push cylinder (3). Both sides of the stabilizer (4) are slidably connected to the surface of the gantry (2). The permanent magnet motor clamping assembly includes a slider (11), a support block (12), an arc frame (13), and clamping wheels (14). There are two sliders (11), two support blocks (12), and two arc frames (13). The top of the slider (11) is bolted to the bottom of the support block (12), and the bottom of the arc frame (13) is bolted to the top of the support block (12). There are four clamping wheels (14). The axis of the two clamping wheels (14) is rotatably connected to the notches on both sides of the arc frame (13). The power mechanism is connected to the slider (11).
2. The rotor embedding device for a permanent magnet motor according to claim 1, characterized in that, The power mechanism includes a linear motor (5), a rack (6), a pinion (7), and a transmission assembly. The output end of the linear motor (5) is bolted to one end of the rack (6), the teeth of the rack (6) mesh with the teeth of the pinion (7), and the pinion (7) is keyed to the transmission assembly.
3. The rotor embedding device for a permanent magnet motor according to claim 2, characterized in that, The transmission assembly includes a rotating shaft (8), a transmission frame (9), and a hinge rod (10). The shaft center of the pinion (7) is keyed to the bottom end of the rotating shaft (8), and the middle end of the rotating shaft (8) is keyed to the hole in the middle of the transmission frame (9). There are two hinge rods (10), both of which are hinged to the transmission frame (9) and hinged to the slider (11).
4. The rotor embedding device for a permanent magnet motor according to claim 2, characterized in that, The surface of the linear motor (5) is bolted to the inside of the base (1), and the rack (6) is slidably connected to the base (1).
5. The rotor embedding device for a permanent magnet motor according to claim 3, characterized in that, The top and bottom ends of the rotating shaft (8) are both rotatably connected to the inside of the base (1), and the rotating shaft (8) is located in the middle of the base (1).
6. The rotor embedding device for a permanent magnet motor according to claim 1, characterized in that, The base (1) is bolted to the middle of the top and has a support platform (15). The top of the support platform (15) has an opening for receiving.
7. The rotor embedding device for a permanent magnet motor according to claim 1, characterized in that, The surface of the slider (11) is slidably connected to the groove at the top of the base (1), and the bottom of the support block (12) is slidably connected to the top of the base (1).