Split tooth vernier motor

Abstract

The utility model relates to the technical field of motors, in particular to a split tooth vernier motor, which comprises a base, a rotating shaft assembly, a stator assembly, a rotor shell, an induction assembly and a rotor assembly, the base is provided with an induction mounting groove and a rotating shaft mounting groove, one end of the rotating shaft mounting groove is communicated with the induction mounting groove, and the rotating shaft assembly is arranged on the rotating shaft mounting groove. The sensing assembly is arranged on the sensing mounting groove; the stator assembly comprises a stator framework and a stator coil, the inner diameter of the stator framework is arranged on the base, the outer diameter of the stator framework is provided with a plurality of stator magnet yokes, the stator coil is wound on the stator magnet yokes, one end of each stator magnet yoke is provided with a stator tooth block, and each stator tooth block is provided with a stator tooth groove; according to the utility model, through reasonable arrangement and arrangement of the magnetic shoes, accurate alignment and efficient coupling of the stator tooth grooves are realized, the torque density of the motor is improved, and the magnetic resistance loss is reduced, so that the motor can maintain high-efficiency operation in a wide rotating speed range.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field especially is split tooth vernier motor. BACKGROUND

[0002] Vernier motor is a kind of synchronous motor, and its core characteristic lies in that it can realize accurate positioning and control by applying vernier effect.The so-called vernier effect refers to when rotor rotates very small mechanical angle, rotor magnetic field axis will change relatively large angle, thereby matching with the high-speed magnetic field generated by stator.This effect makes vernier motor be able to maintain higher torque output when running at low speed.Permanent magnet vernier motor can be further divided into rotor permanent magnet type, stator permanent magnet type and stator-rotor double permanent magnet type according to the placement position of permanent magnet in motor.Vernier reluctance motor is similar in structure to switched reluctance motor, but its operation mode is different, it usually feeds through three-phase sinusoidal current to generate rotating magnetic field and drives rotor to run at the speed fraction multiple of rotating field.Vernier motor has the characteristics of high positioning and control precision and good reliability, and is widely applied in manufacturing industry, medical equipment and instruments and meters and other fields.

[0003] The existing vernier motor has deficiencies in design, especially in the cooperation of stator and rotor, torque density is insufficient, which increases reluctance loss, so that the motor has poor running stability when rotating at high speed. UTILITY MODEL CONTENTS

[0004] To solve the above problems, the utility model discloses a reasonable arrangement and arrangement of magnetic shoe, realize accurate alignment and efficient coupling to stator tooth slot, not only improve the torque density of motor, also reduce the reluctance loss, so that the motor can maintain high efficiency operation in wide speed range split tooth vernier motor.

[0005] The utility model discloses a split tooth vernier motor, including base, pivot assembly, stator subassembly, rotor shell, induction subassembly and rotor subassembly, the base is provided with induction installation groove and pivot installation groove, one end of pivot installation groove communicates with induction installation groove, pivot assembly sets up on pivot installation groove, induction subassembly sets up on induction installation groove;The stator subassembly includes stator framework and stator coil, the inside diameter of stator framework sets up on base, and the outside diameter is provided with a plurality of stator yokes, the stator coil is around and is arranged on the stator yoke, one end of stator yoke is provided with stator tooth block, and stator tooth block is provided with stator tooth slot;One end of rotor shell is connected with pivot assembly, and the rotor subassembly is composed of a plurality of rotor magnetic shoe, and a plurality of rotor magnetic shoe sets up in the inside diameter of rotor shell and is opposite to stator tooth slot.

[0006] Further improvement of the above scheme is that the outer periphery of the base is provided with an assembly step, one end of the assembly step is provided with a fixing element, the stator framework is arranged on the assembly step, and the fixing element is used for fixing the stator on the assembly step.

[0007] Further improvement of the above scheme is that the assembly step is provided with a positioning pin, and the stator framework is provided with a positioning key groove used for cooperating with the positioning pin to position the assembly angle of the stator framework.

[0008] Further improvement of the above scheme is that the rotating shaft assembly comprises a rotating bearing and a rotating driving shaft, the rotating bearing is arranged on the rotating shaft mounting groove, one end of the rotating driving shaft is connected with the rotor shell, and the other end is connected with the induction assembly.

[0009] Further improvement of the above scheme is that the stator tooth groove penetrates along the thickness direction of the stator tooth block, and the number of the stator tooth groove is at least one.

[0010] Further improvement of the above scheme is that the rotor shell comprises a first end cover, a connecting shell and a second end cover, the first end cover and the second end cover are connected to two ends of the connecting shell respectively, the first end cover is connected with the rotating shaft assembly, and the second end cover is rotatably connected with the base through a bearing.

[0011] Further improvement of the above scheme is that the first end cover is provided with a first connecting step, the second end cover is provided with a second connecting step, the first connecting step and the second connecting step are connected to two ends of the connecting shell respectively, and the rotor magnetic shoe is arranged on the inner diameter of the connecting shell.

[0012] Further improvement of the above scheme is that the first end cover is provided with a reinforcing connecting part, and the reinforcing connecting part is connected with the rotating shaft assembly.

[0013] Further improvement of the above scheme is that the induction assembly comprises an induction connecting seat, an induction sheet, an induction plate and an inductor, the induction connecting seat is arranged on the rotating shaft assembly, the induction sheet is arranged on the induction connecting seat, the induction plate is arranged on the induction mounting groove, and the inductor is arranged on the induction plate and opposite to the induction sheet.

[0014] Further improvement of the above scheme is that the induction plate is provided with a supporting column, the supporting column is used for mounting the induction plate on the induction mounting groove, and one end of the induction mounting groove is communicated to the surface of the base.

[0015] The utility model has the advantages of:

[0016] Compared with the existing vernier motor, the base structure realizes the communication of the induction installation groove and the rotating shaft installation groove, optimizes the space layout, and ensures the accurate assembly and positioning between the components. The overall structural strength and stability of the motor are improved. Secondly, the stator skeleton of the stator assembly serves as a support structure, and the inner diameter thereof is directly fixed on the base, thereby ensuring the stability of the stator part. The plurality of stator yokes arranged on the outer diameter of the stator not only provide a winding platform for the stator coil, but also optimize the magnetic field distribution and enhance the electromagnetic coupling efficiency through the accurate design of the shape and size. The stator coil is wound on the stator yoke to form a powerful electromagnetic field, which provides a necessary condition for the efficient energy conversion of the motor. In addition, the stator tooth block arranged at one end of the stator yoke and the stator tooth slot thereon further refine the magnetic field structure, and through the interaction with the rotor magnetic tile, accurate electromagnetic force transmission and energy conversion are realized, and the output efficiency and dynamic response capability of the motor are improved. Furthermore, one end of the rotor shell is closely connected with the rotating shaft assembly, thereby ensuring the stable rotation of the rotor. The rotor assembly composed of a plurality of rotor magnetic tiles also realizes accurate alignment and efficient coupling of the stator tooth slot through reasonable arrangement and arrangement of the magnetic tiles. Not only the torque density of the motor is improved, but also the magnetic resistance loss is reduced, so that the motor can maintain high efficiency in a wide speed range. The utility model not only has the advantages of compact structure, stable operation, high efficiency, large torque density and the like, but also has good dynamic response capability and low noise characteristics, and provides an efficient and reliable driving solution for the fields of industrial automation, electric vehicles, aerospace and the like. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic view of the split-tooth vernier motor of the utility model;

[0018] Figure 2 It is a three-dimensional schematic view of the split-tooth vernier motor of the utility model; Figure 1 It is a top view schematic view of the split-tooth vernier motor;

[0019] Figure 3 It is a sectional view of A-A; Figure 1

[0020] Figure 4 It is a sectional view of A-A; Figure 1 It is a sectional view of A-A;

[0021] Figure 5 It is a sectional view of A-A; Figure 1 It is an exploded schematic view of the split-tooth vernier motor.

[0022] ​Base 1, induction installation groove 11, rotating shaft installation groove 12, assembly step 13, positioning pin 131, fixed element 14, rotating shaft assembly 2, rotating bearing 21, rotating drive shaft 22, stator assembly 3, stator framework 31, stator yoke 311, stator tooth block 312, stator tooth slot 313, positioning key groove 314, stator coil 32, rotor housing 4, first end cover 41, first connecting step 411, reinforced connecting part 412, connecting housing 42, second end cover 43, second connecting step 431, induction assembly 5, induction connecting seat 51, induction sheet 52, induction plate 53, support column 531, inductor 54, rotor assembly 6, rotor magnetic tile 61. DETAILED DESCRIPTION

[0023] For the purpose of facilitating the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. In the drawings, preferred embodiments of the present application are shown. However, the present application can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the present application to those skilled in the art.

[0024] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in this specification and the appended claims, the singular forms "a", "an" and "the" include plural referents unless the content clearly dictates otherwise. Thus, for example, reference to "a component" includes a combination of two or more components, and the like. Figures 1-5As shown, in an embodiment of the utility model, relate to a kind of split tooth vernier motor, including base 1, shaft assembly 2, stator assembly 3, rotor shell 4, sensing component 5 and rotor assembly 6, the base 1 is provided with sensing installation groove 11 and shaft installation groove 12, one end of the shaft installation groove 12 is communicated with sensing installation groove 11, the shaft assembly 2 is arranged in shaft installation groove 12, the sensing component 5 is arranged in sensing installation groove 11;The stator assembly 3 includes stator skeleton 31 and stator coil 32, the inner diameter of stator skeleton 31 is arranged on base 1, and the outer diameter is provided with multiple stator yokes 311, the stator coil 32 is wound on stator yoke 311, one end of the stator yoke 311 is provided with stator tooth block 312, and stator tooth block 312 is provided with stator tooth slot 313;One end of the rotor shell 4 is connected with shaft assembly 2, the rotor assembly 6 is composed of multiple rotor tiles 61, multiple rotor tiles 61 are arranged on the inner diameter of rotor shell 4, and are opposite to stator tooth slot 313.In this embodiment, the structure of base 1 realizes the communication of sensing installation groove 11 and shaft installation groove 12, not only optimizes the space layout, but also ensures the accurate assembly and positioning between components.Improve the overall structural strength and stability of motor.Secondly, the stator skeleton 31 of stator assembly 3 is used as a support structure, and the inner diameter is directly fixed on the base 1, to ensure the stability of the stator part.The multiple stator yokes 311 provided on the outer diameter of the stator not only provide a winding platform for the stator coil 32, but also optimize the magnetic field distribution and enhance the electromagnetic coupling efficiency through accurate design of shape and size.The stator coil 32 is wound on the stator yoke 311, forming a powerful electromagnetic field, which provides the necessary conditions for efficient energy conversion of the motor.In addition, the stator tooth block 312 at one end of the stator yoke 311 and the stator tooth slot 313 thereon further refine the magnetic field structure, and through the interaction with the rotor tile 61, accurate electromagnetic force transmission and energy conversion are realized, improving the output efficiency and dynamic response capability of the motor.Furthermore, one end of the rotor shell 4 is closely connected with the shaft assembly 2, to ensure the stable rotation of the rotor.The rotor assembly 6 composed of multiple rotor tiles 61 also realizes accurate alignment and efficient coupling of stator tooth slot 313 through reasonable arrangement and arrangement of tiles, not only improves the torque density of the motor, but also reduces the magnetic resistance loss, so that the motor can maintain high efficiency in a wide speed range.This embodiment not only has the advantages of compact structure, stable operation, high efficiency, large torque density, etc., but also has good dynamic response capability and low noise characteristics, providing efficient and reliable driving solutions for industrial automation, electric vehicles, aerospace and other fields.

[0026] The outer periphery of the base 1 is provided with an assembly step 13, one end of the assembly step 13 is provided with a fixing element 14, the stator skeleton 31 is arranged on the assembly step 13, and the fixing element 14 is used to fix the stator on the assembly step 13. Specifically, the assembly step 13 is provided with a positioning pin 131, and the stator skeleton 31 is provided with a positioning key groove 314 used to cooperate with the positioning pin 131 to position the assembly angle of the stator skeleton 31. In the embodiment, the assembly step 13 not only provides a stable support platform for the stator skeleton 31, but also ensures that the stator can be firmly fixed on the assembly step 13 through the fixing elements 14 such as bolts or buckles, effectively preventing the loosening or displacement of the stator during the operation of the motor, which is crucial for maintaining the normal electromagnetic conversion of the motor and reducing vibration noise. In addition, the positioning pin 131 on the assembly step 13 cooperates with the positioning key groove 314 on the stator skeleton 31 to form a high-precision positioning mechanism. This mechanism can accurately control the assembly angle of the stator skeleton 31, ensure the uniformity of the air gap between the stator and the rotor, and thus optimize the magnetic circuit design of the motor, improve the efficiency and output power of the motor. At the same time, the cooperation of the positioning pin 131 and the positioning key groove 314 also simplifies the assembly process, improves the production efficiency, and reduces the assembly errors caused by human operation.

[0027] The rotating shaft assembly 2 includes a rotating bearing 21 arranged on the rotating shaft mounting groove 12 and a rotating drive shaft 22 connected to the rotor shell 4 at one end and connected to the induction assembly 5 at the other end. In the embodiment, the rotating bearing 21 is arranged on the rotating shaft mounting groove 12, which not only ensures the stability and reliability of the rotating shaft during high-speed rotation, but also effectively reduces energy loss due to friction and improves the overall operating efficiency of the motor. In addition, the precise manufacturing and material selection of the rotating bearing 21 also enable it to withstand greater radial and axial loads, further enhancing the durability and service life of the motor. The rotating drive shaft 22 is tightly connected to the rotor shell 4 at one end, ensuring efficient transmission of motor kinetic energy, and is connected to the induction assembly 5 at the other end, realizing smooth conversion between electrical energy and mechanical energy. This tight and efficient connection allows the motor to more accurately control the rotation angle and speed under the split tooth vernier mechanism, thereby achieving higher operating precision and more stable output performance.

[0028] The stator tooth slot 313 penetrates along the thickness direction of the stator tooth block 312, and the number of the stator tooth slot 313 is at least one. In this embodiment, the magnetic field distribution of the motor is optimized. By reasonably setting the number and shape of the stator tooth slot 313, the path resistance of the magnetic field from the tooth part to the tooth part can be ensured to be consistent, thereby improving the utilization efficiency of the magnetic field. At the same time, the existence of the stator tooth slot 313 can also effectively reduce the magnetic leakage phenomenon and improve the overall performance of the motor. Secondly, this structure helps to reduce the vibration and noise of the motor. The opening width of the stator tooth slot 313 has an important influence on the vibration and noise of the motor. By reasonably selecting the opening width of the stator tooth slot 313, the motor tooth slot torque can be reduced to a certain extent, thereby reducing the vibration and noise of the motor and improving the ride comfort in application fields such as new energy vehicles.

[0029] The rotor shell 4 includes a first end cover 41, a connecting shell 42, and a second end cover 43, the first end cover 41 and the second end cover 43 are respectively connected to the two ends of the connecting shell 42, the first end cover 41 is connected with the rotating shaft assembly 2, and the second end cover 43 is rotatably connected with the base 1 through a bearing. Specifically, the first end cover 41 is provided with a first connecting step 411, the second end cover 43 is provided with a second connecting step 431, the first connecting step 411 and the second connecting step 431 are respectively connected to the two ends of the connecting shell 42, and the rotor magnetic tile 61 is arranged on the inner diameter of the connecting shell 42. In this embodiment, the rotor shell 4 is composed of the first end cover 41, the connecting shell 42, and the second end cover 43, and the split design not only facilitates processing and assembly, but also effectively improves the flexibility and maintainability of the structure. The close connection between the first end cover 41 and the rotating shaft assembly 2 ensures the stable rotation of the rotor and reduces the vibration and noise caused by looseness or wear. Secondly, the rotatable connection between the second end cover 43 and the base 1 through the bearing greatly enhances the rotation stability and carrying capacity of the rotor. This design enables the rotor to maintain low friction loss and wear rate during high-speed operation, thereby prolonging the service life of the motor. In addition, the first end cover 41 and the second end cover 43 are connected to the connecting shell 42 through the first connecting step 411 and the second connecting step 431 respectively, and this stepped design not only enhances the connection strength, but also makes the entire rotor shell 4 structure more compact and stable. The rotor magnetic tile 61 is arranged on the inner diameter of the connecting shell 42, which optimizes the distribution of the magnetic field and improves the efficiency and performance of the motor.

[0030] The first end cover 41 is provided with a reinforced connecting part 412 connected with the rotating shaft assembly 2. In this embodiment, the introduction of the reinforced connecting part 412 enables the first end cover 41 to better maintain stability and durability when subjected to various forces and vibrations generated during motor operation. This structural reinforcement effectively reduces the problems of looseness or wear caused by long-term operation, thereby prolonging the service life of the motor.

[0031] The induction assembly 5 includes an induction connecting seat 51, an induction sheet 52, an induction plate 53, and an inductor 54. The induction connecting seat 51 is arranged on the rotating shaft assembly 2, the induction sheet 52 is arranged on the induction connecting seat 51, the induction plate 53 is arranged on the induction mounting groove 11, and the inductor 54 is arranged on the induction plate 53 and opposite to the induction sheet 52. Specifically, the induction plate 53 is provided with a support column 531 for mounting the induction plate 53 on the induction mounting groove 11, and one end of the induction mounting groove 11 is communicated to the surface of the base 1. In this embodiment, the induction connecting seat 51 is ingeniously arranged on the rotating shaft assembly 2 to realize close connection with the rotating part of the motor and ensure accurate transmission of the induction signal. The induction sheet 52 is arranged on the induction connecting seat 51 and rotates synchronously with the rotating shaft, which not only improves the stability of signal transmission but also simplifies the overall structure and reduces the risk of mechanical failure. The induction plate 53 is stably mounted in the induction mounting groove 11 through the support column 531, which not only enhances the firmness of the structure but also ensures the accurate alignment between the induction plate 53 and the inductor 54. The inductor 54 is arranged on the induction plate 53 and maintains a relative position with the induction sheet 52, which greatly improves the induction sensitivity and enables the motor to capture key information such as rotating speed and position in real time and accurately during operation. In addition, one end of the induction mounting groove 11 is communicated to the surface of the base 1, which facilitates the installation, debugging, and maintenance of the induction assembly 5 and improves the operability and maintenance convenience of the motor.

[0032] The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A split tooth vernier motor characterized by: The application relates to a motor, which comprises a base, a rotating shaft assembly, a stator assembly, a rotor shell, an induction assembly and a rotor assembly, wherein the base is provided with an induction installation groove and a rotating shaft installation groove, the rotating shaft installation groove is communicated with the induction installation groove at one end, the rotating shaft assembly is arranged on the rotating shaft installation groove, and the induction assembly is arranged on the induction installation groove; the stator assembly comprises a stator framework and a stator coil, the inner diameter of the stator framework is arranged on the base, the outer diameter of the stator framework is provided with a plurality of stator yokes, the stator coil is arranged on the stator yokes, one end of the stator yoke is provided with a stator tooth block, and the stator tooth block is provided with a stator tooth groove; one end of the rotor shell is connected with the rotating shaft assembly, the rotor assembly is composed of a plurality of rotor magnetic tiles, and the plurality of rotor magnetic tiles are arranged on the inner diameter of the rotor shell and are opposite to the stator tooth groove.

2. The split tooth Vernier motor of claim 1, wherein: The outer periphery of the base is provided with an assembly step, one end of the assembly step is provided with a fixing element, the stator framework is arranged on the assembly step, and the fixing element is used for fixing the stator on the assembly step.

3. The split tooth Vernier motor of claim 2, wherein: The assembly step is provided with a positioning pin, the stator framework is provided with a positioning key groove, and the positioning key groove is used for matching the positioning pin to position the assembly angle of the stator framework.

4. The split tooth Vernier motor of claim 1, wherein: The rotating shaft assembly comprises a rotating bearing and a rotating drive shaft, the rotating bearing is arranged on the rotating shaft installation groove, one end of the rotating drive shaft is connected with the rotor shell, and the other end of the rotating drive shaft is connected with the induction assembly.

5. The split tooth Vernier motor of claim 1, wherein: The stator tooth groove penetrates along the thickness direction of the stator tooth block, and the number of the stator tooth groove is at least one.

6. The split tooth Vernier motor of claim 1, wherein: The rotor shell comprises a first end cover, a connecting shell and a second end cover, the first end cover and the second end cover are respectively connected to the two ends of the connecting shell, the first end cover is connected with the rotating shaft assembly, and the second end cover is rotatably connected with the base through a bearing.

7. The split tooth Vernier motor of claim 6, wherein: The first end cover is provided with a first connecting step, the second end cover is provided with a second connecting step, the first connecting step and the second connecting step are respectively connected to the two ends of the connecting shell, and the rotor magnetic tile is arranged on the inner diameter of the connecting shell.

8. The split tooth Vernier motor of claim 6, wherein: The first end cover is provided with a reinforcing connecting part, and the reinforcing connecting part is connected with the rotating shaft assembly.

9. The split tooth Vernier motor of claim 1, wherein: The induction assembly comprises an induction connecting seat, an induction sheet, an induction plate and an inductor, the induction connecting seat is arranged on the rotating shaft assembly, the induction sheet is arranged on the induction connecting seat, the induction plate is arranged on the induction installation groove, the inductor is arranged on the induction plate and opposite to the induction sheet.

10. The split tooth Vernier motor of claim 9, wherein: The induction plate is provided with a supporting column, the supporting column is used for mounting the induction plate on the induction installation groove, and one end of the induction installation groove is communicated to the surface of the base.

Images