Magnetic gear motor all-in-one machine for coal mine scraper conveyor

Abstract

The invention relates to the technical field of motor all-in-one machines, in particular to a magnetic gear motor all-in-one machine for a coal mine scraper conveyor, which comprises a stator assembly, a machine shell, a first rotor, a modulation assembly, a second rotor and a rotating shaft, one side of the outer wall of the stator assembly is fixedly connected to one side of the inner wall of the machine shell. The first rotor comprises a squirrel cage assembly and a first magnetic steel assembly, and the second rotor is arranged on the outer side wall of the rotating shaft; the second rotor comprises a second magnetic steel assembly; the stator assembly drives the squirrel cage assembly to rotate so as to drive the first magnetic steel assembly to rotate. The asynchronous driving motor and the magnetic gear are integrated, so that the size and the weight of the driving system are greatly reduced, the assembly process of the driving motor and the gear box is omitted, the assembly process is simplified, the driving system of the coal mine scraper is more convenient and practical to use, the maintenance requirement of the gear box in the later period is reduced, and the service life of the driving system is prolonged. And the production efficiency is improved while the burden of an operator is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of motor integrated machines, and in particular to a magnetic gear motor integrated machine for a coal mine scraper. Background Art

[0002] Mining scraper is a conveying equipment used in mining environment. Because of its advantages such as strong carrying capacity, strong adaptability, smooth operation and low energy consumption, it is widely used in mining environments such as coal mines, metal mines and non-metallic mines.

[0003] In the prior art, mining scrapers usually work in a low-speed and high-torque state. The driving system of the existing mining scrapers usually consists of a squirrel-cage asynchronous motor and a mechanical gearbox. The high speed of the asynchronous motor drives the scraper after the gearbox reduces the speed and increases the torque. However, this driving system is not easy to install due to the large volume and weight of the system composed of the asynchronous motor and the mechanical gearbox, which makes the assembly process of the asynchronous motor and the mechanical gearbox more complicated, thereby increasing the burden on the operator and affecting the production efficiency. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that mining scrapers usually work in a low-speed and high-torque state. The driving system of the existing mining scrapers is usually composed of a squirrel-cage asynchronous motor and a mechanical gear box. The high speed of the asynchronous motor drives the scraper after the gear box reduces the speed and increases the torque. However, this driving system is not easy to install due to the large system volume and weight composed of the asynchronous motor and the mechanical gear box, which makes the assembly process of the asynchronous motor and the mechanical gear box more complicated, thereby increasing the burden on the operator and affecting the production efficiency. A magnetic gear motor integrated machine for a coal mine scraper is proposed.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A magnetic gear motor integrated machine for a coal mine scraper, comprising a stator assembly, a casing, a first rotor, a modulation assembly, a second rotor and a rotating shaft; one side of the outer wall of the stator assembly is fixedly connected to one side of the inner wall of the casing; the first rotor comprises a squirrel cage assembly and a first magnetic steel assembly, and the second rotor is arranged on the outer side wall of the rotating shaft; the second rotor comprises a second magnetic steel assembly; the stator assembly drives the squirrel cage assembly to rotate and then drives the first magnetic steel assembly to rotate; the magnetic field generated by the first magnetic steel assembly is modulated by the modulation assembly and coupled with the magnetic field generated by the second magnetic steel assembly to drive the second magnetic steel assembly to rotate, thereby driving the rotating shaft to rotate; the rotation speed of the second magnetic steel assembly is lower than the rotation speed of the first magnetic steel assembly.

[0007] As a preferred embodiment of the present invention, the stator assembly is composed of a plurality of arc-shaped motor modules; there is no magnetic coupling between the plurality of arc-shaped motor modules; each of the arc-shaped motor modules comprises an iron core and a winding; a module mounting portion is formed between the casing along the circumference of the motor; the plurality of arc-shaped motor modules are evenly fixed on the module mounting portion of the casing along the circumference; the number of poles of the plurality of arc-shaped motor modules are different from each other.

[0008] As a preferred embodiment of the present invention, two of the arc-shaped motor modules facing each other along the circumference have the same number of poles and constitute an arc-shaped motor module pair; a plurality of the arc-shaped motor modules form a plurality of arc-shaped motor module pairs and the number of poles of each of the arc-shaped motor module pairs is different.

[0009] As a preferred embodiment of the present invention, the casing includes a first shell and a second shell; the stator assembly is fixed on one side of the inner wall of the first shell; the outer wall of the modulation assembly is fixed on the inner wall of the second shell; the second shell includes a second left shell and a second right shell; the modulation assembly includes a modulation block and a resin; the inner walls of the second left shell and the second right shell are opposite to each other on one side and the groove and the projection structure are staggered; the groove of the second left shell corresponds to the groove of the second right shell, the modulation block is arranged between the groove of the second left shell and the groove of the second right shell, and the modulation block, the second left shell and the second right shell are connected by resin.

[0010] As a preferred embodiment of the present invention, the squirrel cage assembly includes a squirrel cage rotor formed by an iron core and squirrel cage bars; the first magnetic steel assembly is a Halbach magnetic steel array; the squirrel cage assembly and the first magnetic steel assembly are connected through a first rotor bracket to form a first rotor.

[0011] As a preferred embodiment of the present invention, the first rotor includes a first rotor core; a winding slot is provided on one side of the outer wall of the first rotor core; a magnetic steel slot is provided on one side of the outer wall of the first rotor core; a connecting yoke is provided between the winding slot and the magnetic steel slot; the winding slot is used to install a squirrel cage assembly, and the squirrel cage assembly is a squirrel cage bar; the magnetic steel slot is used to install the first magnetic steel assembly, and teeth are formed between the winding slots along the circumferential direction, and the teeth are aligned with the magnetic steel slots along the radial direction.

[0012] As a preferred embodiment of the present invention, the width W1 of the winding slot remains unchanged along the radial direction, the width W2 of the magnetic steel slot remains unchanged along the radial direction, and the ratio of W1 / W2 is between 1.1-1.2; the first magnetic steel assembly adopts tangential magnetization; and the connecting yoke is connected to the first rotor bracket.

[0013] As a preferred embodiment of the present invention, end covers are provided at both ends of the outer wall of the casing; the rotating shaft is connected to the casing and the end covers via bearings; and the first rotor bracket is connected to the casing and the end covers via bearings.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The stator assembly is composed of a plurality of arc-shaped motor modules, and there is no magnetic coupling between the plurality of arc-shaped motor modules. Each arc-shaped motor module includes an iron core and a winding. A module mounting portion is formed between the casing along the circumference of the motor, and the plurality of arc-shaped motor modules are evenly fixed on the module mounting portion of the casing along the circumference. When the pole numbers of the plurality of arc-shaped motor modules are different from each other and the pole numbers of the two arc-shaped motor modules facing each other along the circumference are the same, an arc-shaped motor module pair is formed. The plurality of arc-shaped motor modules form a plurality of arc-shaped motor module pairs, and the pole numbers of each arc-shaped motor module pair are different from each other, thereby producing different effects and situations, so as to facilitate the staff to select according to the situation, thereby making the device more flexible.

[0016] 2. Under the same magnetic field strength, the magnetic density of the connecting yoke when the teeth are aligned with the magnetic steel slots in the radial direction is lower than when the winding slots are aligned with the magnetic steel slots in the radial direction. Therefore, the radial length of the connecting yoke can be reduced by aligning the teeth with the magnetic steel slots in the radial direction, thereby reducing the weight of the rotor, thereby reducing energy consumption, reducing the cost of use, and improving the operating effect and efficiency of the rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0018] Figure 1 It is a cross-sectional view of the main structure of the present invention;

[0019] Figure 2 It is an exploded schematic diagram of the stator assembly and the housing fixing structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the assembly of the stator assembly and the housing fixing structure of the present invention;

[0021] Figure 4 It is a schematic diagram of the fixing structure of the modulation component and the housing of the present invention;

[0022] Figure 5 is a schematic diagram of the first rotor structure of the present invention;

[0023] Figure 6 The relationship between the ratio of the winding slot width W1 to the magnetic steel slot width W2 and the torque of the present invention;

[0024] In the figure: 1. stator assembly; 11. arc motor module; 2. casing; 21. second left shell; 22. second right shell; 3. squirrel cage assembly; 4. first magnetic steel assembly; 5. modulation assembly; 51. modulation block; 52. resin; 6. second rotor; 7. shaft; 8. first rotor bracket; 9. end cover; 10. first rotor core; 101. winding slot; 102. magnetic steel slot; 103. connecting yoke. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Embodiment 1:

[0027] See also Figure 1-Figure 6 As shown, a magnetic gear motor integrated machine for a coal mine scraper comprises a stator assembly 1, a housing 2, a first rotor, a modulation assembly 5, a second rotor 6 and a rotating shaft 7; one side of the outer wall of the stator assembly 1 is fixedly connected to one side of the inner wall of the housing 2; the first rotor comprises a squirrel cage assembly 3 and a first magnetic steel assembly 4, and the second rotor 6 is arranged on the outer side wall of the rotating shaft 7; the second rotor 6 comprises a second magnetic steel assembly; the stator assembly 1 drives the squirrel cage assembly 3 to rotate and then drives the first magnetic steel assembly 4 to rotate; the magnetic field generated by the first magnetic steel assembly 4 is modulated by the modulation assembly 5 and coupled with the magnetic field generated by the second magnetic steel assembly to drive the second magnetic steel assembly to rotate, thereby driving the rotating shaft 7 to rotate; the rotation speed of the second magnetic steel assembly is lower than the rotation speed of the first magnetic steel assembly 4, and by integrating the asynchronous drive motor and the magnetic gear into one, the volume and weight of the drive system are greatly reduced, and the assembly process of the drive motor and the gear box is omitted, which simplifies the improvement of the assembly process, makes the use of the drive system of the coal mine scraper more convenient and practical, reduces the maintenance requirements of the gear box in the later stage, reduces the burden on the operator and improves the production efficiency.

[0028] The housing 2 includes a first housing and a second housing; the stator assembly 1 is fixed to one side of the inner wall of the first housing; the outer wall of the modulation assembly 5 is fixed to the inner wall of the second housing; the second housing includes a second left housing 21 and a second right housing 22; the modulation assembly 5 includes a modulation block 51 and a resin 52; the inner walls of the second left housing 21 and the second right housing 22 are opposite to each other and are provided with grooves and protrusions, and the grooves and protrusions are distributed alternately; the grooves of the second left housing 21 correspond to the grooves of the second right housing 22, and the modulation block 51 is arranged in the grooves of the second left housing 21 and the second right housing 22. The modulation block 51, the second left shell 21 and the second right shell 22 are connected by resin 52 between the grooves of the shell 22. By connecting the modulation block 51, the second left shell 21 and the second right shell 22 by resin 52, the modulation block 51 is set between the groove of the second left shell 21 and the groove of the second right shell 22, which can improve the connection strength between the modulation block 51 and the second shell, thereby increasing the service life of the device, and by improving the connection strength, the device is less likely to be lost or malfunction, thereby improving the safety of the device.

[0029] The stator assembly 1 is composed of multiple arc-shaped motor modules 11; there is no magnetic coupling between the multiple arc-shaped motor modules 11; each arc-shaped motor module 11 includes an iron core and a winding; a module mounting portion is formed between the casing 2 along the circumference of the motor; the multiple arc-shaped motor modules 11 are evenly fixed on the module mounting portion of the casing 2 along the circumference; the number of poles of the multiple arc-shaped motor modules 11 are different from each other. The stator assembly 1 of the asynchronous drive motor is composed of multiple arc-shaped motor modules 11, and the number of poles of each arc-shaped motor module 11 is different. When adjusting the motor speed, only the corresponding arc-shaped motor module 11 needs to be operated, which simplifies the speed regulation of the asynchronous drive motor and reduces the cost.

[0030] The width W1 of the winding slot 101 remains unchanged along the radial direction, the width W2 of the magnetic steel slot 102 remains unchanged along the radial direction, and the ratio of W1 / W2 is between 1.1 and 1.2; the first magnetic steel assembly 4 adopts tangential magnetization; the connecting yoke 103 is connected to the first rotor bracket 8, when the width W1 of the winding slot 101 remains unchanged along the radial direction, the width W2 of the magnetic steel slot 102 remains unchanged along the radial direction, and the ratio of W1 / W2 is optimized as follows: Figure 6 As shown, the preferred ratio of W1 / W2 is between 1.1-1.2.

[0031] End covers 9 are provided at both ends of the outer wall of the casing 2; the rotating shaft 7 is connected to the casing 2 and the end covers 9 through bearings; the first rotor bracket 8 is connected to the casing 2 and the end covers 9 through bearings, so that the friction force can be reduced through the bearings when the device is running, thereby effectively maintaining the safety of each part and reducing the friction loss of each part, making the device more practical and further improving its service life.

[0032] The two arc motor modules 11 facing each other along the circumference have the same number of poles and constitute a pair of arc motor modules 11; multiple arc motor modules 11 form multiple arc motor module 11 pairs and the number of poles of each arc motor module 11 pair is different from each other. The stator assembly 1 consists of multiple arc motor modules 11, and there is no magnetic coupling between the multiple arc motor modules 11. Each arc motor module 11 includes an iron core and a winding. The casing 2 forms a module mounting portion along the circumference of the motor, and the multiple arc motor modules 11 are evenly fixed on the module mounting portion of the casing 2 along the circumference. When the number of poles of the multiple arc motor modules 11 are different from each other and the number of poles of the two arc motor modules 11 facing each other along the circumference is the same, a pair of arc motor modules 11 is constituted. The multiple arc motor modules 11 form multiple arc motor module 11 pairs and the number of poles of each arc motor module 11 pairs are different from each other, thereby producing different effects and situations, so as to facilitate the staff to choose according to the situation, thereby making the device more flexible.

[0033] Embodiment 2:

[0034] See also Figure 5-Figure 6 As shown, the cage assembly 3 includes a cage rotor formed by an iron core and cage bars; the first magnetic steel assembly 4 is a Halbach magnetic steel array; the cage assembly 3 and the first magnetic steel assembly 4 are connected through a first rotor bracket 8 to form a first rotor, and the first rotor includes a first rotor core 10; a winding slot 101 is provided on one side of the outer wall of the first rotor core 10; a magnetic steel slot 102 is provided on one side of the outer wall of the first rotor core 10; a connecting yoke 103 is provided between the winding slot 101 and the magnetic steel slot 102; the winding slot 101 is used to install the cage assembly 3, and the cage assembly 3 is a cage bar; the magnetic steel slot 102 02 is used to install the first magnetic steel component 4, and teeth are formed between the winding slots 101 along the circumferential direction, and the teeth are aligned with the magnetic steel slots 102 in the radial direction. Under the same magnetic field strength, the magnetic density of the connecting yoke 103 when the teeth are aligned with the magnetic steel slots 102 in the radial direction is lower than when the winding slots 101 and the magnetic steel slots 102 are aligned in the radial direction. Therefore, the radial length of the connecting yoke 103 can be reduced by aligning the teeth with the magnetic steel slots 102 in the radial direction, thereby reducing the weight of the rotor, thereby reducing energy consumption, reducing the cost of use, and improving the operation effect and efficiency of the rotor.

[0035] When the present invention is in use, the magnetic gear motor integrated machine includes a stator assembly 1, a housing 2, a first rotor, a modulation assembly 5, a second rotor 6 and a rotating shaft 7. The stator assembly 1 is fixed on the housing 2, the first rotor includes a squirrel cage assembly 3 and a first magnetic steel assembly 4, the second rotor 6 is fixed on the rotating shaft 7, the second rotor 6 includes a second magnetic steel assembly, the stator assembly 1 drives the squirrel cage assembly 3 to rotate, the squirrel cage assembly 3 drives the first magnetic steel assembly 4 to rotate, the rotating magnetic field generated by the first magnetic steel assembly 4 is modulated by the modulation assembly 5 and coupled with the magnetic field generated by the second magnetic steel assembly to drive the second magnetic steel assembly to rotate, and then drive the rotating shaft 7 to rotate, and the second magnetic steel assembly 4 drives the rotating magnetic field generated by the modulation assembly 5 to drive the rotating magnetic field generated by the second magnetic steel assembly to drive ... The rotation speed of the steel component is lower than the rotation speed of the first magnetic steel component 4, so that the volume and weight of the drive system are greatly reduced by integrating the asynchronous drive motor and the magnetic gear, and the assembly process of the drive motor and the gear box is omitted, which simplifies the improvement of the assembly process, making the use of the coal mine scraper drive system more convenient and practical, and reduces the maintenance requirements of the gear box in the later stage, reduces the burden on operators and improves production efficiency. The stator component 1 is composed of multiple arc motor modules 11, and there is no magnetic coupling between the multiple arc motor modules 11. Each arc motor module 11 includes an iron core and a winding.A module mounting portion is formed between the casing 2 along the circumference of the motor, and a plurality of arc-shaped motor modules 11 are uniformly fixed on the module mounting portion of the casing 2 along the circumference. When the pole numbers of the plurality of arc-shaped motor modules 11 are different from each other and the pole numbers of the two arc-shaped motor modules 11 facing each other along the circumference are the same, a pair of arc-shaped motor modules 11 is formed. The plurality of arc-shaped motor modules 11 form a plurality of arc-shaped motor module 11 pairs, and the pole numbers of each arc-shaped motor module 11 pair are different from each other, thereby producing different effects and situations, so as to facilitate the staff to select according to the situation, thereby making the device more flexible, and the modulation block 51 is arranged on the second left shell 21 by connecting the modulation block 51, the second left shell 21 and the second right shell 22 with resin 52. The grooves of the second right shell 22 can improve the connection strength between the modulation block 51 and the second shell, so that the service life of the device is increased, and the improvement of the connection strength makes the device less likely to be lost or fail, thereby improving the safety of the device, and by the same magnetic field strength, the magnetic density of the connecting yoke 103 when the teeth are aligned with the magnetic steel slots 102 in the radial direction is lower than when the winding slots 101 and the magnetic steel slots 102 are aligned in the radial direction. Therefore, the radial length of the connecting yoke 103 can be reduced by aligning the teeth with the magnetic steel slots 102 in the radial direction, thereby reducing the weight of the rotor, thereby reducing energy consumption, reducing the cost of use, and improving the operation effect and efficiency of the rotor. Furthermore, the winding The width W1 of the group slot 101 remains unchanged in the radial direction, and the width W2 of the magnetic steel slot 102 remains unchanged in the radial direction. The ratio of W1 / W2 is optimized, and the ratio of W1 / W2 is preferably between 1.1-1.2. The device not only greatly reduces the volume and weight of the drive system by integrating the asynchronous drive motor and the magnetic gear into one, but also omits the assembly process of the drive motor and the gear box, simplifies the improvement of the assembly process, makes the use of the coal mine scraper drive system more convenient and practical, reduces the maintenance requirements of the gear box in the later stage, reduces the burden on the operator, and improves the production efficiency. The stator assembly 1 of the asynchronous drive motor is composed of a plurality of arc motor modules 11, and each arc motor module 1 1 has different pole numbers. When adjusting the motor speed, it is only necessary to make the corresponding arc motor module 11 work, which simplifies the speed regulation of the asynchronous drive motor, optimizes the operating efficiency, reduces unnecessary energy consumption, and reduces costs. The simplified speed regulation method usually has a faster response speed and can adapt to load changes more quickly, making the device more convenient for staff to use while reducing the difficulty of operation. The ratio of the width W1 of the winding slot 101 to the width W2 of the magnetic steel slot 102 is optimized, so that the output performance of the magnetic gear motor integrated machine is better, thereby not only increasing market competitiveness, but also improving efficiency and productivity while shortening the production cycle, increasing output, thereby increasing the productivity of the enterprise, and further reducing production costs.

[0036] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A magnetic gear motor integrated machine for a coal mine scraper, comprising a stator assembly (1), a housing (2), a first rotor, a modulation assembly (5), a second rotor (6) and a rotating shaft (7); characterized in that: One side of the outer wall of the stator component (1) is fixedly connected to one side of the inner wall of the housing (2); the first rotor comprises a squirrel cage component (3) and a first magnetic steel component (4), and the second rotor (6) is arranged on the outer side wall of the rotating shaft (7); the second rotor (6) comprises a second magnetic steel component; the stator component (1) drives the squirrel cage component (3) to rotate and thereby drives the first magnetic steel component (4) to rotate; the magnetic field generated by the first magnetic steel component (4) is modulated by the modulation component (5) and coupled with the magnetic field generated by the second magnetic steel component to drive the second magnetic steel component to rotate, thereby driving the rotating shaft (7) to rotate; the rotation speed of the second magnetic steel component is lower than the rotation speed of the first magnetic steel component (4).

2. The magnetic gear motor integrated machine for a coal mine scraper according to claim 1, characterized in that: The stator assembly (1) is composed of a plurality of arc-shaped motor modules (11); there is no magnetic coupling between the plurality of arc-shaped motor modules (11); each of the arc-shaped motor modules (11) comprises an iron core and a winding; a module mounting portion is formed between the casing (2) along the circumference of the motor; the plurality of arc-shaped motor modules (11) are uniformly fixed on the module mounting portion of the casing (2) along the circumference; and the number of poles of the plurality of arc-shaped motor modules (11) are different from each other.

3. The magnetic gear motor integrated machine for a coal mine scraper according to claim 2, characterized in that: Two arc-shaped motor modules (11) facing each other along the circumference have the same number of poles and constitute an arc-shaped motor module (11) pair; a plurality of arc-shaped motor modules (11) form a plurality of arc-shaped motor module (11) pairs, and the number of poles of each arc-shaped motor module (11) pair is different from each other.

4. The magnetic gear motor integrated machine for a coal mine scraper according to claim 3, characterized in that: The housing (2) comprises a first housing and a second housing; the stator assembly (1) is fixedly connected to one side of the inner wall of the first housing; the outer wall of the modulation assembly (5) is fixedly connected to the inner wall of the second housing; the second housing comprises a second left housing (21) and a second right housing (22); the modulation assembly (5) comprises a modulation block (51) and a resin (52); the inner walls of the second left housing (21) and the second right housing (22) are opposite to each other and are provided with grooves and protrusions, and the grooves and protrusions are distributed alternately; the groove of the second left housing (21) corresponds to the groove of the second right housing (22), the modulation block (51) is arranged between the groove of the second left housing (21) and the groove of the second right housing (22), and the modulation block (51), the second left housing (21) and the second right housing (22) are connected by resin (52).

5. The magnetic gear motor integrated machine for a coal mine scraper according to claim 4, characterized in that: The squirrel cage assembly (3) comprises a squirrel cage rotor formed by an iron core and squirrel cage bars; the first magnetic steel assembly (4) is a Halbach magnetic steel array; the squirrel cage assembly (3) and the first magnetic steel assembly (4) are connected via a first rotor bracket (8) to form a first rotor.

6. The magnetic gear motor integrated machine for a coal mine scraper according to claim 5, characterized in that: The first rotor comprises a first rotor core (10); a winding slot (101) is provided on one side of an outer wall of the first rotor core (10); a magnetic steel slot (102) is provided on one side of an outer wall of the first rotor core (10); a connecting yoke (103) is provided between the winding slot (101) and the magnetic steel slot (102); the winding slot (101) is used to install a squirrel cage assembly (3), and the squirrel cage assembly (3) is a squirrel cage bar; the magnetic steel slot (102) is used to install a first magnetic steel assembly (4), and teeth are formed between the winding slots (101) along the circumferential direction, and the teeth are aligned with the magnetic steel slots (102) along the radial direction.

7. The magnetic gear motor integrated machine for a coal mine scraper according to claim 6, characterized in that: The width W1 of the winding slot (101) remains unchanged in the radial direction, the width W2 of the magnetic steel slot (102) remains unchanged in the radial direction, and the ratio of W1 / W2 is between 1.1 and 1.2; the first magnetic steel component (4) adopts tangential magnetization; and the connecting yoke (103) is connected to the first rotor bracket (8).

8. The magnetic gear motor integrated machine for a coal mine scraper according to claim 7, characterized in that: End covers (9) are provided at both ends of the outer wall of the casing (2); the rotating shaft (7) is connected to the casing (2) and the end covers (9) via bearings; and the first rotor bracket (8) is connected to the casing (2) and the end covers (9) via bearings.

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