Air-cooled permanent-magnet direct-drive motor applied to centrifugal powder concentrator

Abstract

The utility model relates to the technical field of air-cooled permanent-magnet direct-drive motors, and discloses an air-cooled permanent-magnet direct-drive motor applied to a centrifugal powder concentrator, which comprises a base, the upper part of the base penetrates through an outer shell and is fixedly connected with an inner shell, and a stator is fixedly connected in the inner shell. A load shaft is rotationally connected to the middle side of the interior of the inner shell, the left end of the load shaft penetrates through the left portion of the inner shell and the left portion of the outer shell, the right end of the load shaft penetrates through the right portion of the inner shell, a rotor is fixedly connected to the middle of the load shaft, and the exterior of the rotor is close to the interior of the stator. According to the utility model, the brush mechanism is matched with the pulling block to scrape and collect dust at the parts such as the motor heat dissipation strip, thereby solving the problems of heat dissipation and overheating damage; the rear cover is fixed by the outer shell through the mounting block and the bolt to avoid loosening, and the air inlet and outlet holes of the rear cover and the outer shell are provided with the filter screens to prevent large particles from entering and guarantee normal operation of the motor.

Description

Technical Field

[0001] The utility model relates to the technical field of air-cooled permanent magnet direct drive motors, in particular to an air-cooled permanent magnet direct drive motor applied to a centrifugal powder separator. Background Art

[0002] The permanent magnet direct drive motor uses permanent magnets as the rotor, and has the characteristics of high-efficiency conversion, mechanical reliability, operation stability, and fast response. Compared with traditional motors, it can provide higher torque and power density, reducing energy loss and noise. This makes the permanent magnet direct drive motor widely used in the fields of industrial automation, machinery manufacturing, electric vehicles, etc.;

[0003] The air-cooled permanent magnet direct drive motor is a permanent magnet direct drive motor that uses a fan for cooling, and is commonly found in wind power generation sets. Its structure includes a permanent magnet rotor, a stator coil, and an external fan. The working principle is that when the motor is running, the fan generates an air flow through its blades to cool the motor. This design enables the motor to maintain a relatively low temperature during long-term high-load operation, improving the reliability and stability of the system;

[0004] In the prior art, the working environment of some permanent magnet motors has a large amount of dust, and fine dust will enter. After a period of time, the dust is adsorbed on the heat sink of the motor, which affects the heat dissipation efficiency and even causes overheating and damage to the motor; in addition, the shell and the rear cover of some air-cooled permanent magnet direct drive motors are connected by quick-release buckles. When the motor is running, especially when there is vibration, etc., it is easy to loosen or the connection fails, and it will also be easily disconnected due to accidental touch or unexpected situations. Therefore, an air-cooled permanent magnet direct drive motor applied to a centrifugal powder separator is proposed to solve the above problems. Summary of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides an air-cooled permanent magnet direct drive motor applied to a centrifugal powder separator, aiming to improve the problems that in the prior art, some permanent magnet motors have a large amount of dust in the working environment, which causes dust to enter and be adsorbed on the heat sink, affecting the heat dissipation efficiency and even damaging the motor, and the quick-release buckle connection method between its shell and the rear cover is easy to loosen, fail or be accidentally disconnected during the operation of the motor.

[0006] To achieve the above object, the utility model adopts the following technical solutions: An air-cooled permanent magnet direct drive motor applied to a centrifugal powder separator, comprising a base, the upper part of the base penetrates through the outer shell and is fixedly connected to an inner shell, a stator is fixedly connected inside the inner shell, a load shaft is rotatably connected to the middle side inside the inner shell, the left end of the load shaft penetrates through the left part of the inner shell and the left part of the outer shell, the right end of the load shaft penetrates through the right part of the inner shell, a rotor is fixedly connected to the middle part of the load shaft, the outside of the rotor is close to the inside of the stator, a plurality of heat dissipation strips are fixedly connected to the outside of the outer shell at equal intervals, and a brush mechanism is arranged on one side of the outside of the outer shell;

[0007] As a further description of the above technical solution: The brush mechanism includes an annular plate, an annular plate is arranged on one side of the outside of the outer shell, sliding grooves are respectively opened in the middle sides of the front and rear parts of the base, a long hole is opened in the middle side of the upper part of the outer shell, a plurality of brushes are fixedly connected to the inside of the annular plate at equal intervals, sliders are respectively fixedly connected to both ends of the annular plate, the sliders are all slidably arranged inside the sliding grooves, one ends of springs are respectively fixedly connected to the left parts of the sliders, the other ends of the springs are respectively fixedly connected to the left sides inside the sliders, a pulling block is fixedly connected to the middle side of the upper part of the annular plate, and the pulling block is slidably arranged inside the long hole;

[0008] As a further description of the above technical solution: A fan blade is fixedly connected to the right end of the load shaft;

[0009] As a further description of the above technical solution: A placement box is fixedly connected to the right side of the bottom of the outer shell, and a collection box is arranged inside the placement box;

[0010] As a further description of the above technical solution: A plurality of mounting blocks are fixedly connected to the right side inside the outer shell, and the mounting blocks are all threadedly connected with a rear cover through bolts;

[0011] As a further description of the above technical solution: A plurality of air outlet holes are equidistantly opened in the left part of the outer shell, and a plurality of air inlet holes are equidistantly opened in the right part of the rear cover;

[0012] As a further description of the above technical solution: Filter nets are fixedly connected to both the air outlet holes and the air inlet holes;

[0013] As a further description of the above technical solution: The brushes are all in contact with the heat dissipation strips and the inner shell.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the present utility model, through the mutual cooperation of the components of the brush mechanism, when the permanent magnet motor is working and the environmental dust is relatively large, fine dust will enter. After a period of time, dust will be adsorbed on the motor heat dissipation fins. At this time, by pulling the pull block, the ring plate with a brush is driven to scrape the dust on the inner shell and the heat dissipation fins. At the same time, chutes are provided on the front and rear sides of the base. One end of a spring is connected to the left side inside the chute, and the other end of the spring is connected to the slider of the ring plate. When the ring plate is pulled to move from left to right, the dust is scraped into the collection box, and then the ring plate will automatically reset. Then, the dust in the collection box is poured out to solve the problems of affecting heat dissipation and causing the motor to be damaged due to overheating.

[0016] 2. In the present utility model, with the cooperation of the rear cover and the filter screen and other structures, by fixing several mounting blocks on the right side inside the outer shell and fixing the rear cover to the outer shell with multiple bolts, the problems that when vibrations and other situations occur, it is easy to loosen or the connection fails, the rear shell drops, and the fan may cause harm to the staff can be solved; and filter screens are fixed at the air inlet and outlet holes of the rear cover and the outer shell, which can solve the problem of large particles entering the inside of the outer shell to solve the problems of easy loosening, accidental touch or accidental disconnection due to vibrations and other situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structure diagram of an air-cooled permanent magnet direct drive motor applied to a centrifugal powder separator proposed by the present utility model;

[0018] Figure 2 is the right view of an air-cooled permanent magnet direct drive motor applied to a centrifugal powder separator proposed by the present utility model;

[0019] Figure 3 is the developed view of an air-cooled permanent magnet direct drive motor applied to a centrifugal powder separator proposed by the present utility model;

[0020] Figure 4 is the left sectional view of an air-cooled permanent magnet direct drive motor applied to a centrifugal powder separator proposed by the present utility model;

[0021] Figure 5 is Figure 3 the detailed enlarged view of the brush mechanism in the overall structure diagram in

[0022] Figure 6 is Figure 4 the enlarged view of part A in

[0023] Legend:

[0024] 1. Outer housing; 2. Air outlet; 3. Base; 4. Collection box; 5. Rear cover; 6. Long hole; 7. Air inlet; 8. Bolt; 9. Brush mechanism; 901. Ring plate; 902. Pull block; 903. Brush; 904. Slide block; 10. Mounting block; 11. Heat dissipation strip; 12. Inner housing; 13. Fan blade; 14. Load shaft; 15. Stator; 16. Rotor; 17. Slide groove; 18. Spring; 19. Filter screen; 20. Placing box. Detailed implementation manner

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Refer to Figures 1 - 6 , an embodiment of an air-cooled permanent magnet direct drive motor applied to a centrifugal classifier provided by the present invention: An air-cooled permanent magnet direct drive motor applied to a centrifugal classifier includes a base 3. The upper part of the base 3 penetrates through the outer housing 1 and is fixedly connected to the inner housing 12. The stator 15 is fixedly connected inside the inner housing 12. The load shaft 14 is rotatably connected to the middle side inside the inner housing 12. The left end of the load shaft 14 penetrates through the left part of the inner housing 12 and the left part of the outer housing 1. The right end of the load shaft 14 penetrates through the right part of the inner housing 12. The middle part of the load shaft 14 is fixedly connected to the rotor 16. The outside of the rotor 16 is close to the inside of the stator 15. A plurality of heat dissipation strips 11 are fixedly connected to the outside of the outer housing 1 at equal intervals. A brush mechanism 9 is arranged on one side of the outside of the outer housing 1. The brush mechanism 9 includes a ring plate 901. A ring plate 901 is arranged on one side of the outside of the outer housing 1. Slide grooves 17 are respectively opened in the middle sides of the front and rear parts of the base 3. A long hole 6 is opened in the middle side of the upper part of the outer housing 1. A plurality of brushes 903 are fixedly connected to the inside of the ring plate 901 at equal intervals. Slide blocks 904 are fixedly connected to both ends of the ring plate 901. The slide blocks 904 are all slidably arranged inside the slide grooves 17. One ends of springs 18 are fixedly connected to the left parts of the slide blocks 904. The other ends of the springs 18 are fixedly connected to the left sides inside the slide blocks 904. A pull block 902 is fixedly connected to the middle side of the upper part of the ring plate 901. The pull block 902 is slidably arranged inside the long hole 6. The right end of the load shaft 14 is fixedly connected to a fan blade 13. A placing box 20 is fixedly connected to the right side of the bottom of the outer housing 1. A collection box 4 is arranged inside the placing box 20. A plurality of mounting blocks 10 are fixedly connected to the right side inside the outer housing 1. The mounting blocks 10 are all threadedly connected to the rear cover 5 through bolts 8. A plurality of air outlets 2 are opened in the left part of the outer housing 1 at equal intervals. A plurality of air inlets 7 are opened in the right part of the rear cover 5 at equal intervals. Filter screens 19 are fixedly connected to both the air outlets 2 and the air inlets 7.

[0027] Inside the inner housing 12, there are a stator 15, a load shaft 14 and a rotor 16. A number of heat dissipation fins 11 are equidistantly connected to the outside of the outer housing 1. A brush mechanism 9 is provided on the outside of the outer housing 1. The brush mechanism 9 includes an annular plate 901, a brush 903, a slider 904 and a pull block 902. When working, the environmental dust is relatively large. After a period of time, dust will be adsorbed on the motor heat dissipation fins 11. At this time, by pulling the pull block 902, the annular plate 901 with the brush 903 is driven to scrape the dust on the inner housing 12 and the heat dissipation fins 11. At the same time, chutes 17 are provided on the front and rear sides of the base 3. One end of a spring 18 is connected to the left side inside the chute 17, and the other end of the spring 18 is connected to the slider 904 of the annular plate 901. When the annular plate 901 is pulled to move from left to right, the dust is scraped into the collection box 4. Then, when the annular plate 901 is released, it will automatically reset. Then, the dust in the collection box 4 is poured out. A number of mounting blocks 10 are provided on the right side inside the outer housing 1. The mounting blocks 10 are all connected to the rear cover 5 by bolts 8, and a filter screen 19 is fixed at the air inlet and outlet holes of the rear cover 5 and the outer housing 1, which can prevent large particles from entering the inside of the outer housing 1 to solve the problems of easy loosening, accidental touch or accidental disconnection due to vibration and other situations.

[0028] Working principle: Inside the inner housing 12, there are a stator 15, a load shaft 14 and a rotor 16. A number of heat dissipation fins 11 are equidistantly connected to the outside of the outer housing 1. A brush mechanism 9 is provided on the outside of the outer housing 1. The brush mechanism 9 includes an annular plate 901, a brush 903, a slider 904 and a pull block 902. When working, the environmental dust is relatively large. After a period of time, dust will be adsorbed on the motor heat dissipation fins 11. At this time, by pulling the pull block 902, the annular plate 901 with the brush 903 is driven to scrape the dust on the inner housing 12 and the heat dissipation fins 11. At the same time, chutes 17 are provided on the front and rear sides of the base 3. One end of a spring 18 is connected to the left side inside the chute 17, and the other end of the spring 18 is connected to the slider 904 of the annular plate 901. When the annular plate 901 is pulled to move from left to right, the dust is scraped into the collection box 4. Then, when the annular plate 901 is released, it will automatically reset. Then, the dust in the collection box 4 is poured out. A number of mounting blocks 10 are provided on the right side inside the outer housing 1. The mounting blocks 10 are all connected to the rear cover 5 by bolts 8, and a filter screen 19 is fixed at the air inlet and outlet holes of the rear cover 5 and the outer housing 1, which can prevent large particles from entering the inside of the outer housing 1 to solve the problems of easy loosening, accidental touch or accidental disconnection due to vibration and other situations.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An air-cooled permanent magnet direct-drive motor for use in a centrifugal powder separator, comprising a base (3), characterized in that: The upper part of the base (3) passes through the outer shell (1) and is fixedly connected to the inner shell (12); the inner shell (12) is fixedly connected to the stator (15); the middle part of the inner shell (12) is rotatably connected to a load shaft (14); the left end of the load shaft (14) passes through the left part of the inner shell (12) and the left part of the outer shell (1); the right end of the load shaft (14) passes through the right part of the inner shell (12); the middle part of the load shaft (14) is fixedly connected to a rotor (16); the outside of the rotor (16) is close to the inside of the stator (15); the outside of the outer shell (1) is fixedly connected to a plurality of heat dissipation strips (11) at equal intervals; and a brush mechanism (9) is provided on one side of the outside of the outer shell (1).

2. According to claim 1, the air-cooled permanent magnet direct-drive motor used in a centrifugal powder separator is characterized in that: The brush mechanism (9) comprises a ring plate (901), the ring plate (901) is arranged on one side of the exterior of the outer shell (1), a slide groove (17) is provided on the middle sides of the front and rear parts of the base (3), an elongated hole (6) is provided on the middle side of the upper part of the outer shell (1), a plurality of brushes (903) are fixedly connected to the inner side of the ring plate (901) at equal intervals, both ends of the ring plate (901) are fixedly connected to sliders (904), the sliders (904) slide inside the slide groove (17), the left part of the slider (904) is fixedly connected to one end of a spring (18), the other end of the spring (18) is fixedly connected to the left side of the slider (904), and the upper middle side of the ring plate (901) is fixedly connected to a pull block (902), the pull block (902) slides inside the elongated hole (6).

3. The air-cooled permanent magnet direct-drive motor for a centrifugal powder separator according to claim 1, characterized in that: The right end of the load shaft (14) is fixedly connected to a fan blade (13).

4. The air-cooled permanent magnet direct-drive motor for a centrifugal powder separator according to claim 1, characterized in that: A storage box (20) is fixedly connected to the right side of the bottom of the outer shell (1), and a collection box (4) is arranged inside the storage box (20).

5. The air-cooled permanent magnet direct-drive motor for a centrifugal powder separator according to claim 1, characterized in that: A plurality of mounting blocks (10) are fixedly connected to the right side of the interior of the outer shell (1), and the mounting blocks (10) are threadedly connected to the rear cover (5) via bolts (8).

6. The air-cooled permanent magnet direct-drive motor for a centrifugal powder separator according to claim 5, characterized in that: The left portion of the outer shell (1) is provided with a plurality of air outlet holes (2) at equal intervals, and the right portion of the rear cover (5) is provided with a plurality of air inlet holes (7) at equal intervals.

7. The air-cooled permanent magnet direct-drive motor for a centrifugal powder separator according to claim 6, characterized in that: The air outlet (2) and the air inlet (7) are both fixedly connected with a filter screen (19).

8. The air-cooled permanent magnet direct-drive motor for a centrifugal powder separator according to claim 2, characterized in that: The brushes (903) are in contact with the heat dissipation strip (11) and the inner shell (12).

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