Motor magnetic pole structure capable of accurately regulating and controlling magnetic field distribution

Abstract

The invention relates to the field of motors, and discloses a motor magnetic pole structure capable of accurately regulating and controlling magnetic field distribution, which comprises a shell, a fixed plate is fixedly mounted on one side in the shell, a stator structure is arranged on one side, close to the fixed plate, in the shell, and a rotor structure is arranged in the middle of the stator structure. A speed reduction structure is arranged on the other side, close to the fixing plate, of the interior of the shell, the stator structure comprises four half-fan-shaped fixing frames, the half-fan-shaped fixing frames are fixedly installed on the inner side wall of the shell, iron core shafts are fixedly installed on the front sides and the rear sides of the half-fan-shaped fixing frames, excitation windings are wound around the outer diameters of the iron core shafts, and the stator structure is fixedly installed on the outer side wall of the shell. The outer side ends of the iron core shafts are fixedly provided with semi-fan-shaped pole shoes. The rotor structure comprises a central shaft. The magnetic field can be accurately regulated and controlled, torque output is optimized, stability is improved, torque can be output in multiple modes, the angle can be accurately controlled conveniently, efficient transmission is achieved through the speed reduction structure, and various requirements are met.

Description

Technical Field

[0001] The present invention relates to the field of motors, and in particular to a motor magnetic pole structure capable of precisely controlling magnetic field distribution. Background Art

[0002] In modern industrial production and various technological applications, motors are key devices that convert electrical energy into mechanical energy. Their performance directly impacts the operating efficiency and stability of numerous devices. The magnetic pole structure, a core component of a motor, plays a decisive role in the motor's magnetic field distribution and overall performance.

[0003] Traditional motor pole structures have numerous limitations in design and functionality. Most traditional structures struggle to precisely control magnetic field distribution, resulting in unstable torque output during operation. Especially under varying loads, torque cannot be adjusted promptly and effectively to meet operating conditions. This not only reduces motor efficiency but can also cause vibration and noise, impacting equipment operation and lifespan.

[0004] Furthermore, conventional motor pole structures have limited control accuracy for rotor rotation angles, making them difficult to meet in applications requiring extremely high output shaft rotation angles, such as precision instrument manufacturing and high-end automated production lines. Furthermore, conventional motor pole structures also have significant shortcomings in speed regulation, resulting in a relatively narrow speed regulation range and an inability to achieve efficient speed regulation over a wide range, limiting the motor's widespread application under diverse operating conditions.

[0005] The existing deceleration structure also has problems such as low transmission efficiency and large energy loss when working in conjunction with the motor pole structure, which further affects the improvement of the overall performance of the motor. In view of the various defects of the above-mentioned traditional motor pole structure, there is an urgent need to develop a new motor pole structure that can accurately control the magnetic field distribution, optimize torque output, achieve precise angle control, and have efficient speed regulation function. This is the background for the birth of the present invention "A motor pole structure that can accurately control the magnetic field distribution", which aims to solve many deficiencies in the existing technology and promote technological progress and application expansion in the field of motors. Summary of the Invention

[0006] In response to the shortcomings of the existing technology, the present invention provides a motor pole structure that can accurately control the magnetic field distribution, solving the problems of traditional motor pole structures such as difficulty in accurately controlling the magnetic field, unstable torque output, low angle control accuracy, narrow speed regulation range, and poor coordination of deceleration structure, thereby improving motor performance and applicability.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a motor pole structure that can accurately control the magnetic field distribution, including a shell, a fixed plate is fixedly installed on one side of the interior of the shell, a stator structure is provided on the side of the interior of the shell close to the fixed plate, a rotor structure is provided in the middle of the stator structure, and a deceleration structure is provided on the other side of the interior of the shell close to the fixed plate. The stator structure includes four half-fan-shaped fixing frames, and the half-fan-shaped fixing frames are fixedly installed on the inner wall of the shell. The front and rear sides of the half-fan-shaped fixing frames are fixedly installed with iron core shafts, the outer diameter of the iron core shafts is wound with excitation windings, and the outer ends of the iron core shafts are fixedly installed with half-fan-shaped pole shoes. The rotor structure includes a central shaft, which is movably installed in the inner middle part of the stator structure, and both ends of the central shaft are fixedly installed with magnetic strip tooth mounting plates.

[0008] Preferably, a plurality of first magnetic racks are fixedly mounted on the outer ends of the semi-fan-shaped pole shoes, and a plurality of second magnetic teeth are fixedly mounted on the inner ends of the magnetic teeth mounting plates, and each magnetic tooth of the first magnetic racks corresponds to each other.

[0009] Preferably, an output shaft is fixedly mounted in the middle of the magnetic stripe tooth mounting plate on the front side, and the middle outer diameter of the output shaft is mounted in the middle of the fixed plate through a positioning bearing.

[0010] Preferably, the deceleration structure includes a gear shaft, a transmission shaft and a main shaft, the gear shaft is fixedly mounted on the end of the output shaft, and the transmission shaft is movably mounted on one side of the fixed plate.

[0011] Preferably, a first reduction gear is fixedly mounted on the middle outer diameter of the transmission shaft and is meshed and connected with the inner end of the gear shaft, and a reduction pinion is fixedly mounted on the front end of the first reduction gear.

[0012] Preferably, the main shaft is movably mounted on the other side of the fixed plate, a second reduction gear is fixedly mounted on the outer diameter of the main shaft, the second reduction gear is meshed with the inner end of the reduction gear, and the end of the main shaft extends to the outside of the housing.

[0013] The present invention provides a motor pole structure that can precisely control magnetic field distribution. It has the following beneficial effects:

[0014] 1. The present invention can flexibly and accurately control the magnetic field distribution by selectively and cyclically energizing the excitation windings on the semi-fan-shaped fixing frames at different positions, effectively optimize the torque output of the motor, significantly improve the smoothness of the motor operation, and reduce the loss to the stator structure.

[0015] 2. The present invention allows for multiple energization methods, such as energizing only the front or rear excitation windings, staggered energization, and grouping the excitation windings of the semi-sector mounting bracket at different diagonal positions to achieve diverse torque output modes. This not only facilitates real-time adjustment of the magnetic field distribution to change torque based on load changes, but also helps achieve efficient speed regulation over a wide range of motors.

[0016] 3. The unique design of the magnetic strip teeth of the present invention reduces the rotation angle each time, and can conveniently and accurately regulate the rotation angle of the output shaft, meeting the demand for high-precision control of the motor output angle. The equipped deceleration structure can realize the torque output of the motor through the cooperation of the gear shaft, transmission shaft, main shaft and multiple gears, and reasonably decelerate the speed of the motor to adapt to the speed and torque requirements of different working scenarios, thereby improving the practicality and applicability of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention;

[0018] Figure 2 Schematic diagram of the internal structure of the present invention;

[0019] Figure 3 is a schematic diagram of the stator structure of the present invention;

[0020] Figure 4 Schematic diagram of the rotor structure of the present invention;

[0021] Figure 5 for Figure 2 Enlarged view of point A in the middle.

[0022] Among them, 1. Shell; 2. Fixed plate; 3. Stator structure; 301. Semi-fan-shaped fixed frame; 302. Iron core shaft; 303. Excitation winding; 304. Semi-fan-shaped pole shoe; 305. First magnetic rack; 4. Rotor structure; 401. Center axis; 402. Magnetic stripe tooth mounting plate; 403. Second magnetic stripe tooth; 404. Output shaft; 405. Positioning bearing; 5. Reduction structure; 501. Gear shaft; 502. Transmission shaft; 503. First reduction gear; 504. Reduction pinion; 505. Main shaft; 506. Second reduction gear. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example:

[0025] Please see the attached Figure 1 -Attached Figure 5 , the embodiment of the present invention provides a motor pole structure that can accurately control the magnetic field distribution, such as Figure 1 As shown, it includes a shell 1, which serves as the external protection and support frame of the entire motor pole structure. A fixing plate 2 is fixedly installed on one side of the inside. The fixing plate 2 plays a key role in stabilizing the internal structures and provides an installation and positioning basis for the stator structure 3, the rotor structure 4 and the reduction structure 5. A stator structure 3 is provided on the side of the inside of the shell 1 close to the fixing plate 2. The stator structure 3 includes four half-fan-shaped fixing frames 301. The four half-fan-shaped fixing frames 301 are fixedly installed on the inner wall of the shell 1 and are evenly distributed to construct the main frame of the stator structure 3. The front and rear sides of the half-fan-shaped fixing frames 301 are fixedly installed with iron core shafts 302. The iron core shaft 302 serves as a winding carrier for the excitation winding 303 and can generate a magnetic field after power is applied. The excitation winding 303 is wound on the outer diameter of the iron core shaft 302. When current passes through the excitation winding 30 3, according to the principle of electromagnetic induction, the iron core shaft 302 will be magnetized, and then a magnetic field will be generated, which will realize the basis for regulating the magnetic field of the motor. The outer ends of the iron core shaft 302 are fixedly installed with semi-fan-shaped pole shoes 304. The semi-fan-shaped pole shoes 304 can effectively concentrate and guide the magnetic field generated by the iron core shaft 302, thereby enhancing the effect of the magnetic field. A rotor structure 4 is provided in the middle of the stator structure 3. The rotor structure 4 includes a central axis 401, which is movably installed in the inner middle part of the stator structure 3. It can rotate freely under the action of the magnetic field generated by the stator structure 3, and is the core component for realizing the rotation output of the motor. Magnetic stripe tooth mounting plates 402 are fixedly installed at both ends of the central axis 401. The magnetic stripe tooth mounting plates 402 are used to install the second magnetic stripe teeth 403, and interact with the first magnetic rack 305 in the stator structure 3 to realize the transmission of magnetic field force and the rotation of the rotor.

[0026] In this embodiment, a plurality of first magnetic racks 305 are fixedly installed on the outer ends of the semi-fan-shaped pole shoes 304. Under the action of the magnetic field guided by the semi-fan-shaped pole shoes 304, the first magnetic racks 305 become the effective action points of the magnetic field. A plurality of second magnetic teeth 403 are fixedly installed on the inner ends of the magnetic tooth mounting plates 402. The second magnetic teeth 403 correspond to the first magnetic racks 305. When the first magnetic racks 305 generate magnetism due to the power supply of the excitation winding 303, they will attract or repel the corresponding second magnetic teeth 403, driving the magnetic tooth mounting plates 402 and the center axis 401 to rotate. Each magnetic tooth of the first magnetic rack 305 and the second magnetic teeth 403 corresponds to each other. This precise correspondence ensures the accuracy and stability of the magnetic field force transmission, and provides a basis for achieving precise magnetic field control and motor operation.

[0027] Furthermore, an output shaft 404 is fixedly installed in the middle of the front magnetic strip tooth mounting plate 402. The output shaft 404 is used to transmit the rotational motion of the rotor structure 4 and is a key component for the motor to output power to the outside. The middle outer diameter of the output shaft 404 is installed in the middle of the fixed plate 2 through a positioning bearing 405. The positioning bearing 405 can ensure the stability and accuracy of the output shaft 404 during rotation, reduce shaking and deviation, and ensure the smoothness of power output.

[0028] Furthermore, the deceleration structure 5 includes a gear shaft 501, a transmission shaft 502 and a main shaft 505. The gear shaft 501 is fixedly installed at the end of the output shaft 404. When the output shaft 404 rotates, it will drive the gear shaft 501 to rotate synchronously. The transmission shaft 502 is movably installed on one side of the fixed plate 2. The transmission shaft 502 can rotate freely under the support of the fixed plate 2, acting as a bridge for transmitting power.

[0029] Furthermore, a first reduction gear 503 is fixedly mounted on the middle outer diameter of the transmission shaft 502, and the first reduction gear 503 is meshed and connected with the inner end of the gear shaft 501. The meshing of the first reduction gear 503 and the gear shaft 501 can convert the high-speed rotation of the gear shaft 501 into the low-speed rotation of the transmission shaft 502, thereby realizing the first deceleration. A reduction pinion 504 is fixedly mounted on the front end of the first reduction gear 503, and the reduction pinion 504 rotates synchronously with the first reduction gear 503, thereby further transmitting the rotation of the transmission shaft 502.

[0030] Furthermore, the main shaft 505 is movably mounted on the other side of the fixed plate 2. The main shaft 505 can rotate freely under the support of the fixed plate 2. It is the component that finally outputs the power of the motor. A second reduction gear 506 is fixedly mounted on the outer diameter of the main shaft 505. The second reduction gear 506 is meshed and connected with the inner end of the reduction pinion 504. The meshing of the reduction pinion 504 and the second reduction gear 506 realizes further deceleration, further reduces the speed of the transmission shaft 502, and increases the output torque. The end of the main shaft 505 extends to the outside of the housing 1 so as to be connected to external equipment, outputting power after deceleration and torque boosting to meet the needs of different working scenarios.

[0031] Working principle: By energizing the front excitation winding 303 of the upper left half-fan-shaped fixing frame 301, according to the principle of electromagnetic induction, the current passing through the excitation winding 303 will cause the iron core shaft 302, the half-fan-shaped pole shoe 304 and the first magnetic rack 305 in that direction to generate magnetism, and the magnetic first magnetic rack 305 will attract the corresponding second magnetic rack 403 on the front magnetic stripe tooth mounting plate 402. Under the action of the magnetic field force, the magnetic stripe tooth mounting plate 402 where the second magnetic rack 403 is located will be driven to deflect, thereby causing the central axis 401 of the rotor structure 4 to rotate, and so on, in turn, to the front excitation winding 303 of the upper left half-fan-shaped fixing frame 301, the upper right half-fan-shaped fixing frame 3 01, the front excitation winding 303 of the lower left half-fan-shaped fixing frame 301 and the front excitation winding 303 of the lower right half-fan-shaped fixing frame 301 are energized in a cycle. During this energizing process, the first magnetic racks 305 at different positions will generate magnetism in turn, attracting the corresponding second magnetic racks 403, driving the corresponding second magnetic racks 403 on the front magnetic rack tooth mounting plate 402 to continuously deflect, thereby realizing continuous rotation of the central axis 401. In addition, according to the above method, the excitation winding 303 on the iron core shaft 302 on the rear side of the half-fan-shaped fixing frame 301 is energized, which will also cause the first magnetic rack 305 on the rear side to generate magnetism. 05 and the attraction of the second magnetic rack 403 complete the torque output to the central axis 401, or the front and rear excitation windings 303 are alternately energized, and the magnetic field distribution can be precisely controlled by cleverly controlling the generation and action position of the magnetic field. This precise magnetic field control can effectively optimize the torque output of the motor, make the torque of the motor more stable during operation, significantly improve the stability of the motor operation, and reduce the loss of the stator structure 3 caused by the unreasonable magnetic field distribution. The design of multiple magnetic teeth, that is, the cooperation of the numerous first magnetic racks 305 and the second magnetic racks 403, can reduce the loss of each rotation due to the cumulative effect of the interaction between the numerous magnetic teeth. The rotation angle is convenient for precise control of the rotation angle of the output shaft 404, meeting the demand for high-precision control of the motor output angle. In addition, the front and rear excitation windings 303 of the half-fan-shaped fixing frames 301 on the upper left corner and the lower right corner can be energized first. At this time, the two half-fan-shaped fixing frames 301 at the diagonal positions generate a strong magnetic field, and then the front and rear excitation windings 303 of the half-fan-shaped fixing frames 301 on the upper right corner and the lower left corner are energized. Through this grouped energization method, a stronger torque output to the central axis 401 can be achieved, thereby increasing the motor torque. In this way, it is convenient to adjust the magnetic field distribution in real time according to the change of the load to adjust the torque. When the load is large, the energization method of increasing the torque is adopted;When the load is light, conventional power supply is used, which helps achieve efficient motor speed regulation over a wide range. Finally, the rotating output shaft 404 drives the gear shaft 501, which, through engagement with the first reduction gear 503, transmits its high-speed rotation to the transmission shaft 502. The reduction pinion 504 at the front end of the first reduction gear 503 transmits its rotation to the second reduction gear 506, driving the main shaft 505. This two-stage reduction achieves torque output, meeting the speed and torque requirements of different operating scenarios.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A motor pole structure capable of precisely controlling magnetic field distribution, comprising a housing (1), characterized in that: A fixing plate (2) is fixedly mounted on one side of the interior of the housing (1); a stator structure (3) is provided on one side of the interior of the housing (1) close to the fixing plate (2); a rotor structure (4) is provided in the middle of the stator structure (3); a speed reduction structure (5) is provided on the other side of the interior of the housing (1) close to the fixing plate (2); the stator structure (3) includes four half-fan-shaped fixing frames (301); the half-fan-shaped fixing frames (301) are all fixedly mounted on the inner side wall of the housing (1); An iron core shaft (302) is fixedly mounted on the front and rear sides of the semi-fan-shaped fixing frame (301), an excitation winding (303) is wound on the outer diameter of the iron core shaft (302), and a semi-fan-shaped pole shoe (304) is fixedly mounted on the outer end of the iron core shaft (302). The rotor structure (4) includes a central shaft (401), the central shaft (401) is movably mounted in the inner middle part of the stator structure (3), and magnetic strip tooth mounting plates (402) are fixedly mounted on both ends of the central shaft (401).

2. The motor magnetic pole structure capable of precisely controlling magnetic field distribution according to claim 1, characterized in that: A plurality of first magnetic racks (305) are fixedly mounted on the outer ends of the semi-fan-shaped pole shoes (304), a plurality of second magnetic strip teeth (403) are fixedly mounted on the inner ends of the magnetic strip tooth mounting plates (402), and each magnetic strip tooth of the first magnetic rack (305) corresponds to each other with each magnetic strip tooth of the second magnetic strip teeth (403).

3. The motor magnetic pole structure capable of precisely controlling magnetic field distribution according to claim 1, characterized in that: An output shaft (404) is fixedly mounted in the middle of the magnetic stripe tooth mounting plate (402) on the front side, and the middle outer diameter of the output shaft (404) is mounted in the middle of the fixed plate (2) via a positioning bearing (405).

4. The motor magnetic pole structure capable of precisely controlling magnetic field distribution according to claim 3, characterized in that: The deceleration structure (5) comprises a gear shaft (501), a transmission shaft (502) and a main shaft (505), wherein the gear shaft (501) is fixedly mounted on the end of the output shaft (404), and the transmission shaft (502) is movably mounted on one side of the fixed plate (2).

5. The motor magnetic pole structure capable of precisely controlling magnetic field distribution according to claim 4, characterized in that: A first reduction gear (503) is fixedly mounted on the outer diameter of the middle portion of the transmission shaft (502), and the first reduction gear (503) is meshed and connected with the inner end of the gear shaft (501), and a reduction pinion (504) is fixedly mounted on the front end of the first reduction gear (503).

6. The motor magnetic pole structure capable of precisely controlling magnetic field distribution according to claim 5, characterized in that: The main shaft (505) is movably mounted on the other side of the fixed plate (2), and a second large reduction gear (506) is fixedly mounted on the outer diameter of the main shaft (505). The second large reduction gear (506) is meshed and connected with the inner end of the small reduction gear (504), and the end of the main shaft (505) extends to the outside of the housing (1).

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