Semi-direct-drive roller-driven belt conveyor with switched reluctance motor

Abstract

The utility model discloses a semi-direct-drive roller-driven belt conveyor with a switched reluctance motor. The semi-direct-drive roller-driven belt conveyor comprises a belt, an integrated driving roller, a carrier roller, a steering roller and a rack, the switched reluctance motor is arranged in the driving roller to serve as a driving part of the roller, the motor outer gear ring is arranged outside the switched reluctance motor and is equivalent to an input shaft of a speed reducer, the reduction gear is externally meshed with the motor outer gear ring, and the roller inner gear ring is arranged on the inner wall of the roller body and is internally meshed with the reduction gear. The roller is equivalent to an output shaft of the speed reducer so as to form a gear speed reducer; and the driving part and the speed reduction part are arranged in the driving roller, so that the space occupied by the driving device is reduced, and potential safety hazards caused by an external motor are effectively avoided.

Description

Technical Field

[0001] The utility model relates to a belt conveyor, in particular to a switched reluctance motor semi-direct drive roller driven belt conveyor. Background Art

[0002] ‌Belt conveyor is a common material conveying equipment, also known as belt conveyor. It is generally composed of a frame, conveyor belt, rollers, rollers, tensioning devices, drive devices and other components. The belt conveyor drives the conveyor belt to move through the drive device to achieve material transportation. The advantages of belt conveyor include long conveying distance, large conveying capacity, fast conveying speed, stable operation and low noise. It is widely used in various industries such as mines, ports, construction sites, chemical plants, metallurgical enterprises, etc., for conveying various materials such as coal, ore, sand and gravel, grain, etc.

[0003] The driving system of the belt conveyor is the core part of the entire conveyor. It drives the conveyor belt or conveyor roller through the driving roller to realize the material transportation. Traditional driving rollers are mostly driven by external motors to drive the reducer, and then connected to the roller through a coupling to drive the belt to transmit. The motors are mostly AC asynchronous motors, DC motors or electrically excited synchronous motors.

[0004] The traditional belt conveyor drives the roller with an external motor to drive the reducer to drive the roller to rotate. The disadvantages of this structure are complex structure, reduced motor efficiency, regular maintenance, and the safety of the external motor cannot be guaranteed. Therefore, a new drive structure that can improve efficiency, simplify structure, and improve safety is needed to replace it.

[0005] Existing patents have proposed the use of permanent magnet electric rollers in belt conveyors, but there is still a complex motor reducer structure, and the motor reducer is external and takes up space. For example, CN113928817A proposes an electric roller assembly and a winding device and a belt conveyor having the same. Its external inner rotor permanent magnet motor is connected to the reducer through a coupling, and the inner wall of the roller is bolted to the reducer to drive the roller to rotate. Its device structure is complex, the reducer and the roller are connected by bolts, it is difficult to repair when a fault occurs during operation, and the external motor still has safety hazards. Summary of the invention

[0006] In view of the problems existing in the above-mentioned prior art, the utility model provides a switched reluctance motor semi-direct drive roller driven belt conveyor, which simplifies the drive structure layout and improves the transmission efficiency and safety.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a switched reluctance motor semi-direct drive roller driven belt conveyor, comprising a belt, an integrated drive roller, a roller, a steering roller and a frame, wherein the integrated drive roller and the steering roller are respectively arranged at the two ends of the frame, rollers are arranged at intervals on the frame between the integrated drive roller and the steering roller, and the belt passes around the integrated drive roller and the steering roller; a switched reluctance motor and a reduction gear are arranged in the integrated drive roller; the integrated drive roller comprises a drum body, a main shaft, two drum covers and two drum brackets, the two drum covers are respectively installed at the two ends of the drum body by bolts, and the main shaft is located at the drum body. The motor is located at the axis center and both ends pass through the drum cover and are connected to the drum bracket. A circle of drum inner gear ring is provided on the circumferential inner wall of the drum body. The switched reluctance motor includes a motor casing, a motor outer rotor, a motor inner stator and a motor outer gear ring. The motor inner stator is arranged on the main shaft. The motor casing is also arranged on the main shaft and is located outside the motor inner stator. The motor outer rotor is provided on the circumferential inner wall of the motor casing. A circle of motor outer gear ring is provided on the circumferential outer wall of the motor casing. A gear shaft is provided on the main shaft, the gear shaft is mounted on the outside of the motor casing, and a reduction gear is provided on the gear shaft. The positions of the drum inner gear ring, the reduction gear and the motor outer gear ring correspond to each other, and the reduction gear is meshed with the drum inner gear ring and the motor outer gear ring.

[0008] Furthermore, the circumferential side wall of the motor housing is a double-layer structure with a hollow interior, and a water cooling pipe is provided in the hollow space.

[0009] Furthermore, a brake bracket is provided on the drum bracket, and a disc brake is provided on the brake bracket.

[0010] Furthermore, the contact surface between the drum cover and the main shaft is provided with a drum bearing, the contact surface between the motor housing and the main shaft is provided with a motor bearing, and the contact surface between the reduction gear and the gear shaft is provided with a gear bearing.

[0011] Furthermore, the position where the main shaft is connected to the roller bracket is a diamond shape.

[0012] Compared with the prior art, the utility model arranges a switched reluctance motor inside the driving drum as the driving component of the drum, and an external gear ring of the motor is provided outside the switched reluctance motor, which is equivalent to the input shaft of the reducer, and the external gear ring of the motor is engaged with the reduction gear outside, and an internal gear ring of the drum is provided on the inner wall of the drum body, which is engaged with the internal reduction gear, and the drum is equivalent to the output shaft of the reducer, thereby forming a gear reducer; the driving component and the reduction component are both arranged inside the driving drum, which reduces the space occupied by the driving device and effectively avoids the safety hazards caused by the external motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the external structure of the integrated drive roller of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the integrated driving roller of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the integrated drive roller reducer of the utility model;

[0017] In the figure: 1, belt, 2, integrated drive roller, 3, roller, 4, steering roller, 5, roller bracket, 6, main shaft, 7, bolts, 8, roller bearing, 9, roller cover, 10, roller body, 11, disc brake, 12, roller inner gear ring, 13, reduction gear, 14, gear bearing, 15, gear shaft, 16, motor outer gear ring, 17, brake bracket, 18, motor housing, 19, motor inner stator, 20, motor bearing, 21, motor outer rotor. DETAILED DESCRIPTION

[0018] The utility model will be further described below in conjunction with the accompanying drawings.

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1 As shown, the utility model provides a technical solution: including a belt 1, an integrated driving roller 2, a roller 3, a steering roller 4 and a frame, the integrated driving roller 2 and the steering roller 4 are respectively arranged at two ends of the frame, the rollers 3 are arranged at intervals on the frame between the integrated driving roller 2 and the steering roller 4, and the belt 1 passes around the integrated driving roller 2 and the steering roller 4.

[0021] The integrated drive roller 2 is provided with a switched reluctance motor and a reduction gear 13; Figure 2-Figure 4As shown, the integrated driving drum 2 includes a drum body 10, a main shaft 6, two drum covers 9 and two drum brackets 5, the two drum covers 9 are respectively installed at the two ends of the drum body 10 by bolts 7, the main shaft 6 is located at the axial center position of the drum body 10 and the two ends are respectively connected to the drum brackets 5 after passing through the drum covers 9, and a circle of drum inner gear ring 12 is provided on the circumferential inner wall of the drum body 10; the switched reluctance motor includes a motor housing 18, a motor outer rotor 21, a motor inner stator 19 and a motor outer gear ring 16, the motor inner stator 19 is arranged on the main shaft 6, and the motor housing 1 8 is also arranged on the main shaft 6 and is located outside the motor inner stator 19. The motor housing 18 covers the motor inner stator 19 inside. The motor housing 18 is provided with a motor outer rotor 21 on the circumferential inner wall. The motor housing 18 is provided with a circle of motor outer gear ring 16 on the circumferential outer wall. The main shaft 6 is provided with a "door" shaped gear shaft 15, which is mounted on the outside of the motor housing 18. The gear shaft 15 is provided with a reduction gear 13. The drum inner gear ring 12, the reduction gear 13 and the motor outer gear ring 16 are in corresponding positions, and the reduction gear 13 is meshed with the drum inner gear ring 12 and the motor outer gear ring 16. The drum bracket 5 is provided with a brake bracket 17, and the brake bracket 17 is provided with a disc brake 11. The disc brake 11 is arranged near the drum cover 9 for braking.

[0022] The driving principle of the integrated driving drum 2 is to set a switched reluctance motor inside the driving drum as a driving component. The switched reluctance motor is an outer rotor motor. A motor outer gear ring 16 is provided outside the motor housing 18, which is equivalent to the input shaft of the reducer. The motor outer gear ring 16 is externally meshed with the reduction gear 13; the inner wall of the drum body 10 is provided with a drum inner gear ring 12, which is internally meshed with the reduction gear 13, that is, the drum is equivalent to the output shaft of the reducer, forming a new type of gear reducer, and using this internal structure to replace the traditional motor reducer structure.

[0023] The circumferential side wall of the motor housing 18 is a double-layer structure with a hollow interior. A water cooling pipe is provided in the hollow space, and the water cooling pipe can play a role in cooling.

[0024] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims

1. A switched reluctance motor semi-direct drive roller driven belt conveyor, comprising a belt (1), an integrated drive roller (2), a roller (3), a steering roller (4) and a frame, wherein the integrated drive roller (2) and the steering roller (4) are respectively arranged at two ends of the frame, and the roller (3) is arranged on the frame between the integrated drive roller (2) and the steering roller (4) at intervals, and the belt (1) passes around the integrated drive roller (2) and the steering roller (4); characterized in that: A switched reluctance motor and a reduction gear (13) are arranged in the integrated driving roller (2); The integrated driving drum (2) comprises a drum body (10), a main shaft (6), two drum covers (9) and two drum brackets (5); the two drum covers (9) are respectively mounted on two ends of the drum body (10) by bolts (7); the main shaft (6) is located at the axial center of the drum body (10) and its two ends respectively pass through the drum covers (9) and are connected to the drum brackets (5); a circle of drum inner gear rings (12) is provided on the circumferential inner wall of the drum body (10); The switched reluctance motor comprises a motor housing (18), a motor outer rotor (21), a motor inner stator (19) and a motor outer gear ring (16); the motor inner stator (19) is arranged on a main shaft (6); the motor housing (18) is also arranged on the main shaft (6) and is located outside the motor inner stator (19); the motor outer rotor (21) is arranged on the circumferential inner wall of the motor housing (18); and a circle of motor outer gear ring (16) is arranged on the circumferential outer wall of the motor housing (18); A gear shaft (15) is provided on the main shaft (6), the gear shaft (15) is mounted on the outside of the motor housing (18), and a reduction gear (13) is provided on the gear shaft (15); The positions of the drum inner gear ring (12), the reduction gear (13) and the motor outer gear ring (16) correspond, and the reduction gear (13) is meshed with the drum inner gear ring (12) and the motor outer gear ring (16).

2. A switched reluctance motor semi-direct drive roller driven belt conveyor according to claim 1, characterized in that: The circumferential side wall of the motor housing (18) is a double-layer structure with a hollow interior, and a water cooling pipe is provided in the hollow space.

3. A switched reluctance motor semi-direct drive roller driven belt conveyor according to claim 1, characterized in that: The roller bracket (5) is provided with a brake bracket (17), and the brake bracket (17) is provided with a disc brake (11).

4. A switched reluctance motor semi-direct drive roller driven belt conveyor according to claim 1, characterized in that: The contact surface between the drum cover (9) and the main shaft (6) is provided with a drum bearing (8), the contact surface between the motor housing (18) and the main shaft (6) is provided with a motor bearing (20), and the contact surface between the reduction gear (13) and the gear shaft (15) is provided with a gear bearing (14).

5. The switched reluctance motor semi-direct drive roller driven belt conveyor according to claim 1, characterized in that: The position where the main shaft (6) is connected to the roller bracket (5) is in a rhombus shape.

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