Explosion-proof permanent-magnet direct-drive cutting roller motor

Abstract

The utility model discloses an explosion-proof permanent-magnet direct-drive cutting roller motor, which comprises a heat dissipation assembly, and the heat dissipation assembly comprises two fixing frames, heat dissipation fins, a fixing shaft, a stator iron core and a cutting outer roller. According to the utility model, the stator winding in the stator iron core is electrified so as to drive the outer rotor to rotate, the outer rotor drives the cutting outer roller to rotate, and the cutting outer roller drives the cutting teeth to exploit a coal mine; when the motor works, heat is generated in the motor, the heat is dissipated into the cutting outer roller through heat dissipation fins on an isolation plate, a heat dissipation fan is driven to work along with rotation of the cutting outer roller under cooperation of structures such as a driving gear ring, a driving gear and a rotating shaft, then the heat can be discharged to the outside through heat dissipation holes, heat dissipation of the motor is achieved, and the service life of the cutting outer roller is prolonged. The internal temperature of the motor is prevented from being too high, and the explosion risk is reduced.

Description

Technical Field

[0001] The utility model relates to a cutting drum motor, specifically an explosion-proof permanent magnet direct drive cutting drum motor, belonging to the technical field of cutting drum motors. Background Technique

[0002] A coal mine roadheader-anchoring machine is an integrated equipment specially used for the driving of large-section coal roadways. It integrates multiple functions such as walking, cutting, loading and transportation, drilling and anchoring, etc., and has the characteristics of parallel operation of roadheader and anchoring, one-time roadway forming, safety and high efficiency. The cutting drum is one of the important components of a coal mine roadheader-anchoring machine. It is usually located at the front end of the roadheader-anchoring machine. By rotating and contacting the coal seam, it uses the sharp edges and impact force of the cutting teeth to cut and break the coal seam into smaller blocks or particles, thus completing the driving operation of the coal seam. The cutting ability of the cutting drum determines the driving efficiency and effect of the roadheader-anchoring machine. Therefore, its performance and quality have an important impact on the overall performance of the equipment.

[0003] In a cutting drum motor, in order to enhance the explosion-proof performance, the motor is usually sealed inside the drum. Although this sealing design improves the explosion-proof performance of the motor, it also brings the problem of poor heat dissipation. If these heats cannot be dissipated in time, it will cause the temperature inside the motor to be too high. When used for a long time, it may ignite flammable and explosive gases and cause an explosion. For this reason, an explosion-proof permanent magnet direct drive cutting drum motor is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide an explosion-proof permanent magnet direct drive cutting drum motor to solve one of the problems put forward in the above background technique.

[0005] The utility model is implemented by the following technical solutions: An explosion-proof permanent magnet direct drive cutting drum motor includes a heat dissipation component. The heat dissipation component includes two fixed frames, three driving gears, a driving gear ring, a heat dissipation fan, a rotating shaft, an outer rotor, two isolation plates, heat dissipation fins, a fixed shaft, a stator core and a cutting outer drum;

[0006] The outer rotor is sleeved outside the stator core. A permanent magnet is fixedly connected to the inner side wall of the outer rotor. The stator core is fixedly connected to the outer side wall of the fixed shaft. The two isolation plates are symmetrically and fixedly connected to both sides of the outer rotor. The heat dissipation fins are uniformly fixedly connected to the outer side wall of the isolation plates. The driving gear is fixedly connected to the outer side wall of the rotating shaft. The rotating shaft is rotatably connected to the inside of the two fixed frames. The heat dissipation fan is fixedly connected to one end of the rotating shaft. The three driving gears are all meshed and connected to the inner side wall of the driving gear ring. The cutting outer drum is installed on the outer side wall of the outer rotor.

[0007] As a further preference of this technical solution: The driving gear ring is fixedly connected to the inner side wall of the cutting outer drum, and the fixing frame is fixedly connected to the outer side wall of the fixed shaft.

[0008] As a further preference of this technical solution: Side plates are fixedly connected to both sides of the cutting outer drum. The side plates are rotatably connected to the outer side wall of the fixed shaft, and heat dissipation holes are evenly formed inside the side plates.

[0009] As a further preference of this technical solution: A dust-proof net is fixedly connected to the side of the side plate away from the cutting outer drum. The dust-proof net is rotatably connected to the outer side wall of the fixed shaft, and the position of the dust-proof net corresponds to the position of the heat dissipation holes.

[0010] As a further preference of this technical solution: A stator winding is wound inside the stator core. The stator core is located between two isolation plates, and the isolation plates are rotatably connected to the outer side wall of the fixed shaft.

[0011] As a further preference of this technical solution: Two mounting seats are symmetrically and fixedly connected to both ends of the fixed shaft.

[0012] As a further preference of this technical solution: The dust-proof net is located between the mounting seat and the side plate.

[0013] As a further preference of this technical solution: Cutting teeth are evenly fixedly connected to the outer side wall of the cutting outer drum.

[0014] Advantages of the present utility model:

[0015] 1. By energizing the stator winding in the stator core of the present utility model, the outer rotor can be driven to rotate, and the outer rotor drives the cutting outer drum to rotate, and the cutting outer drum drives the cutting teeth to mine coal.

[0016] 2. When the motor works in the present utility model, heat is generated inside. The heat is dissipated to the inside of the cutting outer drum through the heat dissipation fins on the isolation plate. With the rotation of the cutting outer drum, under the cooperation of structures such as the driving gear ring, driving gear, and rotating shaft, the heat dissipation fan works, and thus the heat can be discharged to the outside through the heat dissipation holes, realizing the heat dissipation of the motor, avoiding the over-high temperature inside the motor, and reducing the explosion risk. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a structural schematic diagram of the present utility model;

[0019] Figure 2 is a schematic connection diagram of the isolation plate and the outer rotor of the present utility model;

[0020] Figure 3 is a schematic connection diagram of the fixing frame and the fixing shaft of the present utility model;

[0021] Figure 4 is a structural schematic diagram of the fixing frame of the present utility model;

[0022] Figure 5 is a disassembly view of the present utility model.

[0023] In the figure: 101, heat dissipation component; 11, fixing frame; 12, driving gear; 13, driving gear ring; 14, heat dissipation fan; 15, outer rotor; 16, isolation plate; 17, heat dissipation fin; 18, side plate; 19, dust-proof net; 20, heat dissipation hole; 21, fixing shaft; 22, stator core; 23, permanent magnet; 24, stator winding; 25, mounting seat; 26, cutting outer drum; 27, cutting tooth; 28, rotating shaft. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment

[0026] Please refer to Figures 1 - 5 , the present utility model provides a technical solution: an explosion-proof permanent magnet direct drive cutting drum motor, including a heat dissipation component 101, and the heat dissipation component 101 includes two fixing frames 11, three driving gears 12, a driving gear ring 13, a heat dissipation fan 14, a rotating shaft 28, an outer rotor 15, two isolation plates 16, heat dissipation fins 17, a fixing shaft 21, a stator core 22 and a cutting outer drum 26;

[0027] The outer rotor 15 is sleeved outside the stator core 22, a permanent magnet 23 is fixedly connected to the inner side wall of the outer rotor 15, the stator core 22 is fixedly connected to the outer side wall of the fixing shaft 21, two isolation plates 16 are symmetrically and fixedly connected to both sides of the outer rotor 15, the stator core 22 is located between the two isolation plates 16, and the isolation plate 16 is rotatably connected to the outer side wall of the fixing shaft 21;

[0028] The isolation plate 16 can play a role in isolating explosion and protecting the stator core 22, preventing impurities such as coal dust from entering the interior of the stator;

[0029] The interior of the stator core 22 is wound with a stator winding 24;

[0030] During operation, the stator winding 24 in the stator core 22 is energized, which can drive the outer rotor 15 to rotate. The outer rotor 15 drives the cutting outer drum 26 to rotate, and the cutting action of the coal mine can be realized through the cutting outer drum 26;

[0031] The heat dissipation fins 17 are evenly and fixedly connected to the outer side wall of the isolation plate 16. The driving gear 12 is fixedly connected to the outer side wall of the rotating shaft 28. The rotating shaft 28 is rotatably connected to the interior of the two fixing frames 11. The heat dissipation fan 14 is fixedly connected to one end of the rotating shaft 28. The three driving gears 12 are all meshed with the inner side wall of the driving gear ring 13. The cutting outer drum 26 is installed on the outer side wall of the outer rotor 15;

[0032] The heat dissipation component 101 is used to dissipate the heat of the motor stator and rotor. When the motor is working, heat is generated inside. The heat is dissipated to the interior of the cutting outer drum 26 through the heat dissipation fins 17 on the isolation plate 16. As the cutting outer drum 26 rotates, the cutting outer drum 26 drives the driving gear ring 13 to rotate. The driving gear ring 13 drives the driving gear 12 to rotate through the teeth. The driving gear 12 drives the heat dissipation fan 14 to work through the rotating shaft 28, thereby realizing the heat dissipation of the motor.

[0033] In this embodiment, specifically: The driving gear ring 13 is fixedly connected to the inner side wall of the cutting outer drum 26. The fixing frame 11 is fixedly connected to the outer side wall of the fixed shaft 21. The fixing frame 11 can enhance the stability of the heat dissipation fan 14 to ensure the heat dissipation effect.

[0034] In this embodiment, specifically: Side plates 18 are fixedly connected to both sides of the cutting outer drum 26. The side plates 18 are rotatably connected to the outer side wall of the fixed shaft 21. Heat dissipation holes 20 are evenly formed in the interior of the side plates 18. When the heat dissipation fan 14 is working, the heat can be discharged to the outside through the heat dissipation holes 20, thereby realizing the heat dissipation of the motor.

[0035] In this embodiment, specifically: A dust-proof net 19 is fixedly connected to the side of the side plate 18 away from the cutting outer drum 26. The dust-proof net 19 is rotatably connected to the outer side wall of the fixed shaft 21. The position of the dust-proof net 19 corresponds to the position of the heat dissipation holes 20. During the heat dissipation process, air flows between the outside and the inside. The dust-proof net 19 can filter the air entering the cutting outer drum 26 to prevent impurities such as coal dust from entering the interior of the cutting outer drum 26.

[0036] In this embodiment, specifically: Two mounting seats 25 are symmetrically and fixedly connected to both ends of the fixed shaft 21, and the mounting seats 25 are used to connect an external roadheader-anchoring machine.

[0037] In this embodiment, specifically: The dust-proof net 19 is located between the mounting seat 25 and the side plate 18. Thus, the mounting seat 25 can protect the dust-proof net 19 and prevent the dust-proof net 19 from directly contacting the external coal mine.

[0038] In this embodiment, specifically: Cutting teeth 27 are evenly and fixedly connected to the outer side wall of the cutting outer drum 26. When the cutting outer drum 26 works, it drives the cutting teeth 27, and the cutting teeth 27 contact the external coal mine, enabling the excavation operation.

[0039] Regarding the working principle or structural principle, during use, the cutting drum is installed on the roadheader-anchoring machine through the mounting seat 25. When mining, the stator winding 24 in the stator core 22 is powered on, which can drive the outer rotor 15 to rotate. The outer rotor 15 drives the cutting outer drum 26 to rotate. The cutting outer drum 26 drives the cutting teeth 27 to mine the coal mine. When the motor works, heat is generated inside. The heat is dissipated to the inside of the cutting outer drum 26 through the heat dissipation fins 17 on the isolation plate 16. As the cutting outer drum 26 rotates, the cutting outer drum 26 drives the drive gear ring 13 to rotate. The drive gear ring 13 drives the drive gear 12 to rotate through the teeth. The drive gear 12 drives the heat dissipation fan 14 to work through the rotating shaft 28, and then the heat is discharged to the outside through the heat dissipation holes 20, thus realizing the heat dissipation of the motor.

[0040] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An explosion-proof permanent magnet direct drive cutting drum motor, characterized in that, It includes a heat dissipation component (101), and the heat dissipation component (101) includes two fixing frames (11), three driving gears (12), a driving gear ring (13), a cooling fan (14), a rotating shaft (28), an outer rotor (15), two partition plates (16), heat dissipation fins (17), a fixed shaft (21), a stator core (22), and a cutting outer drum (26); The outer rotor (15) is sleeved outside the stator core (22), a permanent magnet (23) is fixedly connected to the inner side wall of the outer rotor (15), the stator core (22) is fixedly connected to the outer side wall of the fixed shaft (21), the two partition plates (16) are symmetrically and fixedly connected to both sides of the outer rotor (15), the heat dissipation fins (17) are uniformly fixedly connected to the outer side wall of the partition plates (16), the driving gears (12) are fixedly connected to the outer side wall of the rotating shaft (28), the rotating shaft (28) is rotatably connected to the inside of the two fixing frames (11), the cooling fan (14) is fixedly connected to one end of the rotating shaft (28), and the three driving gears (12) are all meshed and connected to the inner side wall of the driving gear ring (13), and the cutting outer drum (26) is installed on the outer side wall of the outer rotor (15).

2. The explosion-proof permanent magnet direct drive cutting drum motor according to claim 1, wherein, The driving gear ring (13) is fixedly connected to the inner side wall of the cutting outer drum (26), and the fixing frame (11) is fixedly connected to the outer side wall of the fixed shaft (21).

3. The explosion-proof permanent magnet direct drive cutting drum motor according to claim 2, characterized in that, Both sides of the cutting outer drum (26) are fixedly connected with side plates (18), the side plates (18) are rotatably connected to the outer side wall of the fixed shaft (21), and heat dissipation holes (20) are uniformly formed in the inside of the side plates (18).

4. An explosion-proof permanent magnet direct drive cutting drum motor according to claim 3, characterized in that, A dust-proof net (19) is fixedly connected to the side of the side plate (18) away from the cutting outer drum (26), the dust-proof net (19) is rotatably connected to the outer side wall of the fixed shaft (21), and the position of the dust-proof net (19) corresponds to the position of the heat dissipation holes (20).

5. An explosion-proof permanent magnet direct drive cutting drum motor according to claim 4, characterized in that A stator winding (24) is wound inside the stator core (22), the stator core (22) is located between the two partition plates (16), and the partition plates (16) are rotatably connected to the outer side wall of the fixed shaft (21).

6. The explosion-proof permanent magnet direct drive cutting drum motor according to claim 5, characterized in that, Two mounting seats (25) are symmetrically and fixedly connected to both ends of the fixed shaft (21).

7. An explosion-proof permanent magnet direct drive cutting drum motor according to claim 6, characterized in that, The dust-proof net (19) is located between the mounting seat (25) and the side plate (18).

8. An explosion-proof permanent magnet direct drive cutting drum motor according to claim 7, characterized in that, Cutting teeth (27) are uniformly fixedly connected to the outer side wall of the cutting outer drum (26).

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