Belt permanent magnet electric roller driving device
By combining a heat-conducting shell and heat dissipation fins with a fan design, the problem of poor heat dissipation in permanent magnet motors is solved, achieving efficient heat dissipation, ensuring normal operation of the motor under high loads, and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-03-06
AI Technical Summary
Permanent magnet motors have poor heat dissipation during operation, leading to high temperature problems that affect performance and reliability.
The heat-conducting shell and heat dissipation fins, made of materials with good thermal conductivity, are combined with a fan for heat dissipation. Heat is carried away through heat conduction and airflow. The airflow guide shell is designed to improve heat dissipation efficiency, and a dust removal component is equipped to prevent impurities from accumulating.
It effectively reduces motor temperature, ensures good performance during high-load operation, extends service life, and avoids failures caused by overheating.
Smart Images

Figure CN223978520U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drive device technology, and in particular to a belt permanent magnet electric roller drive device. Background Technology
[0002] Using a permanent magnet synchronous motor as the power source, the system directly drives the belt pulley, eliminating the need for traditional mechanical transmission devices. This achieves high-efficiency energy transfer, reduces energy loss, and improves the system's transmission efficiency. Furthermore, permanent magnet motors are characterized by their small size, light weight, and high power density, which can significantly save space in underground roadways and reduce equipment maintenance costs.
[0003] Regarding the heat generated during operation, permanent magnet motors currently have poor heat dissipation, resulting in high temperatures during long-term high-load operation, which can lead to performance degradation or malfunctions due to overheating.
[0004] Therefore, we propose a belt-driven permanent magnet electric roller drive device to solve the existing problems. Utility Model Content
[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a belt-driven permanent magnet electric roller drive device.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a belt-driven permanent magnet electric roller drive device, comprising a cover, a guide shell, a roller body, and a fan. A permanent magnet motor is provided at one end of the interior of the guide shell. Heat dissipation fins are provided at equal intervals on the outer wall of the heat-conducting shell of the permanent magnet motor. The heat dissipation fins contact the inner wall of the guide shell. A fan is provided at the other end of the interior of the guide shell. The cover is located at the end of the guide shell, and a dust removal component is provided on the cover.
[0007] Preferably, the permanent magnet motor is composed of a front cover, a shaft, a rear seat, a heat-conducting shell, a stator, and a rotor. The rear seat is provided with a heat-conducting shell, the inner wall of the heat-conducting shell is provided with a stator, the rotor is rotatably provided at the central axis of the heat-conducting shell, the central axis of the rotor is provided with a shaft, the other end of the heat-conducting shell is provided with a front cover, and the shaft rotatably passes through the front cover.
[0008] Preferably, the outer wall of the rear seat is provided with auxiliary rods at equal intervals, and the other end of the auxiliary rods is provided on the inner wall of the flow guide shell.
[0009] Preferably, pins are provided at equal intervals on both the front cover and the heat-conducting shell, and the pins on the front cover and the pins on the heat-conducting shell are connected to each other by bolts.
[0010] Preferably, the outer wall of the fan is provided with main rods at equal intervals, and the other end of the main rod is provided on the inner wall of the guide shell.
[0011] Preferably, the roller body is located at the shaft end of the permanent magnet motor.
[0012] Preferably, the dust removal assembly consists of a ring block and a filter plate, a threaded opening is provided at the central axis of the cover, the ring block is threaded onto the threaded opening, and the filter plate is disposed on the inner wall of the ring block.
[0013] Preferably, the lower surface of the flow guide shell is provided with two legs, and the positions of the two legs are symmetrically distributed relative to the lower surface of the flow guide shell.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] In use, the permanent magnet electric roller drive device of this utility model drives the belt roller body to rotate through the shaft during operation;
[0016] During this process, the permanent magnet motor generates heat. The heat-conducting shell is usually made of a material with good thermal conductivity, such as aluminum alloy, to transfer heat more effectively. Under the action of thermal conduction, the heat is transferred to the heat-conducting shell and dissipated to each heat dissipation fin. These fins increase the heat dissipation area, which helps the heat to dissipate to the surrounding environment more quickly. At this time, the fan generates a cooling airflow. The cooling airflow passes between each heat dissipation fin, thereby carrying away the heat carried on the heat dissipation fin. In the process of passing through the heat dissipation fin, the cooling airflow carries away the heat, thereby reducing the temperature of the motor, ensuring the normal operation of the motor and extending its service life. The design of the airflow guide shell allows the cooling airflow to pass through the heat dissipation fin more concentratedly and effectively, which can improve the heat dissipation efficiency and ensure that the motor operates within a suitable temperature range.
[0017] Furthermore, during the fan's intake process, ambient air passes through the filter plate and enters the guide shell. The filter plate filters impurities in the air, preventing a large amount of impurities from entering the guide shell and depositing. When the filter plate needs to be cleaned, the ring block is rotated, and the ring block is removed through the meshing action of the ring block and the cover, making it convenient for personnel to clean the filter plate.
[0018] This invention utilizes an effective heat dissipation method to ensure that the motor maintains a good temperature during long-term high-load operation, thus avoiding performance degradation or malfunction due to overheating. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2 This is a schematic diagram of the main structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the permanent magnet motor and the flow guide shell structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the permanent magnet motor structure of this utility model;
[0023] Figure 5 This is a schematic diagram of the dust removal component structure of this utility model.
[0024] Figure label:
[0025] 1. Support leg; 2. Cover; 3. Flow guide shell; 4. Heat dissipation fins; 5. Drum body; 6. Ring block; 7. Front cover; 8. Pin block; 9. Fan; 10. Main rod; 11. Secondary rod; 12. Shaft; 13. Rear seat; 14. Heat conduction shell; 15. Stator; 16. Rotor; 17. Filter plate. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Example 1
[0028] like Figures 1-5 As shown, the present invention proposes a belt-driven permanent magnet electric roller drive device, including a cover 2, a guide shell 3, a roller body 5, and a fan 9. A permanent magnet motor is provided at one end of the interior of the guide shell 3. The heat dissipation fins 4 are provided at equal intervals on the outer wall of the heat-conducting shell 14 of the permanent magnet motor. The heat dissipation fins 4 contact the inner wall of the guide shell 3. The fan 9 is provided at the other end of the interior of the guide shell 3. The cover 2 is located at the end of the guide shell 3 and is provided with a dust removal component. The roller body 5 is located at the shaft end of the permanent magnet motor shaft 12.
[0029] Based on Example 1:
[0030] During use, the belt permanent magnet electric roller drive device of this utility model can be set at a designated position by the support leg 1, connected to an external power source, and the permanent magnet motor drives the belt roller body 5 to rotate through the shaft 12.
[0031] During this process, the permanent magnet motor generates heat. The heat-conducting shell 14 is usually made of a material with good thermal conductivity, such as aluminum alloy, to transfer heat more effectively. Under the action of thermal conduction, the heat is transferred to the heat-conducting shell 14 and dissipated to each heat dissipation fin 4. These fins increase the heat dissipation area and help the heat dissipate to the surrounding environment more quickly. At this time, the fan 9 works to generate a cooling airflow. The cooling airflow passes between each heat dissipation fin 4, thereby taking away the heat carried on the heat dissipation fin 4. In the process of passing through the heat dissipation fin 4, the cooling airflow takes away the heat, thereby reducing the temperature of the motor, ensuring the normal operation of the motor and extending its service life. The design of the guide shell 3 allows the cooling airflow to pass through the heat dissipation fin 4 more concentratedly and effectively, which can improve the heat dissipation efficiency and ensure that the motor operates within a suitable temperature range.
[0032] Furthermore, during the air intake process of the fan 9, ambient air passes through the filter plate 17 and enters the guide shell 3. The filter plate 17 filters impurities in the air, which can prevent a large number of impurities from entering the guide shell 3 and depositing. When it is necessary to clean the filter plate 17, rotate the ring block 6. Through the meshing action of the ring block 6 and the cover 2, the ring block 6 can be removed, making it convenient for personnel to clean the filter plate 17.
[0033] Example 2
[0034] like Figures 1-5 As shown, the belt-driven permanent magnet electric roller drive device proposed in this utility model, compared with Embodiment 1, further includes: a permanent magnet motor consisting of a front cover 7, a shaft 12, a rear seat 13, a heat-conducting shell 14, a stator 15, and a rotor 16. The rear seat 13 is provided with a heat-conducting shell 14, and the inner wall of the heat-conducting shell 14 is provided with a stator 15. The rotor 16 is rotatably mounted at the central axis of the heat-conducting shell 14, and the central axis of the rotor 16 is provided with a shaft 12. The other end of the heat-conducting shell 14 is provided with a front cover 7, and the shaft 12 rotatably passes through the front cover 7. The stator 15 is the stationary part of the motor, usually composed of coils and an iron core. When an alternating current passes through the coil of the stator 15, a rotating magnetic field is generated in the iron core of the stator 15. The rotor 16 is the rotating part of the motor, composed of permanent magnets. When the rotating magnetic field generated by the stator 15 acts on the rotor 16, an electromagnetic force is generated in the rotor 16. Due to the rotation of the magnetic field, the permanent magnets on the rotor 16 are subjected to force, causing the rotor 16 to start rotating.
[0035] The outer wall of the rear seat 13 is provided with auxiliary rods 11 at equal intervals. The other end of the auxiliary rods 11 is located on the inner wall of the flow guide shell 3. Through the design of the auxiliary rods 11, the permanent magnet motor can be fixed inside the flow guide shell 3.
[0036] Both the front cover 7 and the heat-conducting shell 14 are provided with pins 8 at equal intervals. The pins 8 of the front cover 7 and the pins 8 of the heat-conducting shell 14 are connected to each other by bolts. The design of the pins 8 makes it easy to disassemble and assemble the front cover 7 and the heat-conducting shell 14.
[0037] The outer wall of the fan 9 is provided with main rods 10 at equal intervals, and the other end of the main rods 10 is located on the inner wall of the guide shell 3. Through the design of the main rods 10, the fan 9 can be fixed inside the guide shell 3.
[0038] The dust removal assembly consists of a ring block 6 and a filter plate 17. A threaded opening is provided at the central axis of the cover 2, and the ring block 6 is threaded onto the threaded opening. The filter plate 17 is located on the inner wall of the ring block 6. Ambient air passes through the filter plate 17 and enters the guide shell 3. The filter plate 17 filters impurities in the air. When it is necessary to clean the filter plate 17, the ring block 6 is rotated, and the ring block 6 is removed by the meshing action between the ring block 6 and the cover 2.
[0039] The lower surface of the flow guide shell 3 is provided with two legs 1, and the positions of the two legs 1 are symmetrically distributed with respect to the lower surface of the flow guide shell 3.
[0040] It should be noted that the structure of the fan 9 is a mature existing technology, and its working principle and internal structure are known to those skilled in the art. This utility model only utilizes its function and does not improve its internal structure. Therefore, it will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.
[0041] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A belt permanent magnet electric drum driving device comprising a cover (2), a flow guide shell (3), a drum body (5) and a fan (9), characterized in that: The inner end of the flow guide shell (3) is provided with a permanent magnet motor, the outer wall of the heat conducting shell (14) of the permanent magnet motor is provided with heat dissipation fins (4) at equal intervals, the heat dissipation fins (4) contact the inner wall of the flow guide shell (3), the other end of the flow guide shell (3) is provided with a fan (9), the cover (2) is arranged at the end of the flow guide shell (3), and the cover (2) is provided with a dust removal assembly.
2. A belt permanent-magnetic electric roller driving device according to claim 1, characterized in that: The permanent magnet motor is composed of a front cover (7), a shaft rod (12), a rear seat (13), a heat conducting shell (14), a stator (15) and a rotor (16), the rear seat (13) is provided with a heat conducting shell (14), the inner wall of the heat conducting shell (14) is provided with a stator (15), the middle shaft of the heat conducting shell (14) is rotatably provided with a rotor (16), the middle shaft of the rotor (16) is provided with a shaft rod (12), and the other end of the heat conducting shell (14) is provided with a front cover (7). The shaft rod (12) rotates through the front cover (7).
3. A belt permanent-magnetic electric roller driving device according to claim 2, characterized in that: The outer wall of the rear seat (13) is provided with a vice rod (11) at equal intervals, and the other end of the vice rod (11) is arranged on the inner wall of the flow guide shell (3).
4. A belt permanent-magnetic electric roller driving device according to claim 2, characterized in that: The front cover (7) and the heat conducting shell (14) are both provided with a pin block (8) at equal intervals, and the pin block (8) of the front cover (7) and the pin block (8) of the heat conducting shell (14) are connected by bolts.
5. The belt permanent-magnetic electric roller driving device according to claim 1, characterized in that: The outer wall of the fan (9) is provided with a main rod (10) at equal intervals, and the other end of the main rod (10) is arranged on the inner wall of the flow guide shell (3).
6. A belt permanent-magnetic electric roller driving device according to claim 1, characterized in that: The roller body (5) is arranged at the shaft head of the shaft rod (12) of the permanent magnet motor.
7. The belt permanent-magnetic electric roller driving device according to claim 1, characterized in that: The dust removal assembly is composed of a ring block (6) and a filter plate (17), a threaded hole is formed in the middle shaft of the cover (2), the ring block (6) is threadedly arranged on the threaded hole, and the filter plate (17) is arranged on the inner wall of the ring block (6).
8. The belt permanent-magnetic electric roller driving device according to claim 1, characterized in that: The lower surface of the flow guide shell (3) is provided with two supporting legs (1), and the positions of the two supporting legs (1) are symmetrically distributed with respect to the lower surface of the flow guide shell (3).