Permanent magnet gear direct drive device of drum pulper

Abstract

The utility model discloses a permanent magnet gear direct drive device of a drum pulper, and mainly relates to the technical field of drum pulpers. Comprising a fixing base and a driven gear arranged on the outer side of a rotary drum, a fixing shaft is arranged on the fixing base, the permanent magnet gear is arranged on the outer side of the fixing shaft in a sleeving mode and meshed with the driven gear, rotor discs rotationally connected with the fixing shaft are arranged at the two ends of the permanent magnet gear respectively, and a stator is arranged between the two rotor discs. The stator comprises a stator iron core arranged on the fixed shaft and a stator coil wound on the outer side of the stator iron core, and a plurality of permanent magnets used in cooperation with the stator are arranged on the inner side of the permanent magnet gear. The rotary drum pulper driving device has the advantages that the problem that the rotary drum pulper driving device is low in transmission efficiency is solved, and the installation efficiency and the rotation efficiency of the rotary drum pulper driving device are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of rooftop tents, specifically a permanent magnet gear direct drive device for a rotary drum pulper. Background Technology

[0002] Rotary drum pulpers are important equipment for waste paper pulping. Existing rotary drum pulpers generally include a rotating drum that breaks down waste paper and other raw materials during rotation. These raw materials usually contain impurities such as cloth and wire.

[0003] like Figure 1 As shown, the conventional drive method for rotary drum pulpers is that the motor is connected to a hydraulic coupler to drive the reducer. The reducer is connected to a pinion shaft through a coupling to drive the pinion, which in turn drives the driven gear. This structure occupies a large area, has many connection points, is difficult to install, has many vulnerable parts, and has low transmission efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a permanent magnet gear direct drive device for a rotary drum pulper, which solves the problem of low transmission efficiency of the drive device of the rotary drum pulper and improves the installation efficiency and rotation efficiency of the drive device of the rotary drum pulper.

[0005] To achieve the above objectives, the utility model employs the following technical solution:

[0006] A permanent magnet gear direct drive device for a rotary drum pulper includes a fixed base and a driven gear disposed on the outside of the drum. The fixed base is provided with a fixed shaft and includes a permanent magnet gear sleeved on the outside of the fixed shaft and meshing with the driven gear. The two ends of the permanent magnet gear are respectively provided with rotor disks rotatably connected to the fixed shaft. A stator is provided between the two rotor disks. The stator includes a stator core disposed on the fixed shaft and a stator coil wound on the outside of the stator core. The inner side of the permanent magnet gear is provided with a plurality of permanent magnets that cooperate with the stator.

[0007] Furthermore, one end of the rotor disk is provided with a groove, and a bearing is provided in the groove and sleeved on the outside of the fixed shaft.

[0008] Furthermore, one end of the rotor disk is provided with a bearing cover, and one side of the bearing cover is provided with a protrusion that contacts the bearing.

[0009] Furthermore, a first sealing ring and a second sealing ring are respectively provided between the bearing cover and the rotor disc and the fixed shaft.

[0010] Furthermore, it also includes a base, the fixed seat is slidably mounted on the base, and the base is provided with a screw for driving the base to slide.

[0011] Furthermore, the base is provided with a fixing block that is threadedly connected to the screw, the base is provided with a T-shaped groove, the end of the screw is provided with a T-shaped block, and the two sides of the T-shaped block are respectively in contact with the base.

[0012] Furthermore, the fixing block is provided with nuts on both sides that are threadedly connected to the screw, and one side of each nut is in contact with the two sides of the fixing block.

[0013] Furthermore, the base is provided with a guide rod, and the fixed seat is provided with a guide hole that is slidably connected to the guide rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. When it is necessary to drive the rotating drum to rotate, AC current is applied to the stator winding to generate a rotating magnetic field in the stator. This magnetic field interacts with several permanent magnets on the permanent magnet gear. Combined with the rotational connection between the rotor disk and the fixed shaft, the permanent magnet gear rotates around the stator shaft. At the same time, since the permanent magnet gear directly meshes with the driven gear, it directly drives the rotating drum to rotate and crushes and decomposes the waste paper and other raw materials inside the rotating drum.

[0016] 2. By directly driving the driven gear with a permanent magnet gear, the driving method of motor, hydraulic coupling, reducer, coupling, pinion and gear is replaced, thereby reducing the space required for installation and the cost of manufacturing the drive device, and greatly improving the installation efficiency and rotation efficiency of the rotary drum pulper drive device.

[0017] 3. The rotation speed of the drum can be adjusted by changing the number of slots in the permanent magnet and the stator core, thereby changing the transmission ratio of the direct drive device. Attached Figure Description

[0018] Appendix Figure 1 This is a schematic diagram of the structure of the small gear and the large gear of this utility model.

[0019] Appendix Figure 2 This is a schematic diagram of the permanent magnet gear of this utility model.

[0020] Appendix Figure 3 This is a schematic diagram of the structure of the stator and permanent magnet gear of this utility model.

[0021] Appendix Figure 4 This is a schematic diagram of the structure of the permanent magnet of this utility model.

[0022] Appendix Figure 5 This is a schematic diagram of the screw structure of this utility model.

[0023] The labels shown in the attached diagram:

[0024] 1. Fixed base; 2. Rotary drum; 3. Driven gear; 4. Fixed shaft; 5. Permanent magnet gear; 6. Rotor disc; 7. Stator; 8. Stator core; 9. Stator coil; 10. Permanent magnet; 11. Groove; 12. Bearing; 13. Bearing cover; 14. Protrusion; 16. First sealing ring; 17. Second sealing ring; 18. Base; 19. Screw; 20. Fixed block; 21. T-slot; 22. T-block; 23. Nut; 24. Guide rod; 25. Guide hole; 26. Motor; 27. Hydraulic coupler; 28. Coupling; 29. ​​Pinion; 30. Large gear. Detailed Implementation

[0025] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0026] A direct-drive device for a rotary drum pulper with permanent magnet gears, such as Figure 2 , Figure 3 and Figure 4 As shown, the device includes a fixed base 1 and a driven gear 3 disposed on the outside of a rotating drum 2. The fixed base 1 has a fixed shaft 4 and a permanent magnet gear 5 sleeved on the outside of the fixed shaft 4 and meshing with the driven gear 3. Each end of the permanent magnet gear 5 has a rotor disk 6 rotatably connected to the fixed shaft 4. A stator 7 is disposed between the two rotor disks 6. The stator 7 includes a stator core 8 disposed on the fixed shaft 4 and a stator coil 9 wound around the outside of the stator core 8. The inner side of the permanent magnet gear 5 has several permanent magnets 10 that cooperate with the stator 7. Specifically, the outer side of the stator core 7 has multiple slots for winding and fixing the stator coil 9, forming a stator 7 winding assembly. This allows a magnetic field to be generated after energization, interacting with the permanent magnets on the inner side of the permanent magnet gear 5. Under the interaction of the magnetic fields, a force is generated to rotate around the axis, thereby driving the permanent magnet gear 5 to rotate around the stator 7 axis. Since the permanent magnet gear 5 directly meshes with the driven gear 3, it directly drives the drum 2 to rotate, crushing and decomposing the waste paper and other raw materials inside the drum 2. At the same time, the method of the permanent magnet gear 5 directly driving the driven gear 3 replaces the driving method of the motor 26, hydraulic coupling 27, reducer, coupling 28, pinion 29 and large gear 30, thereby reducing the space required for installation and the cost of manufacturing the drive device, and greatly improving the installation efficiency and rotation efficiency of the drum pulper drive device. In addition, the transmission ratio of the direct drive device can be changed by changing the number of slots of the permanent magnet 10 and the stator core 8, thereby adjusting the rotation speed of the drum 2.

[0027] Preferred, such as Figure 3As shown, one end of the rotor disk 6 is provided with a groove 11, and a bearing 12 is provided in the groove 11 and sleeved on the outside of the fixed shaft 4. The bearing 12 is sleeved on the outside of the fixed shaft 4 and inserted into the groove 11. Through the friction between the bearing 12 and the fixed shaft 4 and the rotor disk 6, the bearing 12 is stably installed between the fixed shaft 4 and the rotor disk 6. At the same time, the bearing 12 reduces the friction between the rotor disk 6 and the fixed shaft 4, making the permanent magnet gear 5 rotate more stably on the fixed seat 1, preventing the permanent magnet gear 5 from deviating from the designated track, thereby improving the transmission efficiency of the drive device.

[0028] Preferred, such as Figure 3 As shown, a bearing cover 13 is provided at one end of the rotor disk 6. A protrusion 14 is provided on one side of the bearing cover 13 to contact the bearing 12. The protrusion 14 on one side of the bearing cover 13 contacts one side of the bearing 12, and the other side of the bearing 12 contacts the rotor disk 6, thereby restricting the axial movement of the bearing 12 on the rotor disk 6 and improving the stability of the drive device transmission.

[0029] Preferred, such as Figure 3 As shown, a first sealing ring 16 and a second sealing ring 17 are respectively provided between the bearing cover 13 and the rotor disk 6 and the fixed shaft 4 to prevent external dust from entering the interior of the permanent magnet gear 5 and the stator 7, thereby improving the stability of the drive device transmission.

[0030] Preferred, such as Figure 2 , Figure 3 and Figure 5 As shown, it also includes a base 18. The fixed seat 1 is slidably disposed on the base 18. The base 18 is provided with a screw 19 for driving the base 18 to slide. The screw 19 drives the fixed seat 1 to move on the base 18, which in turn drives the permanent magnet gear 5 on the fixed seat 1 to move until the permanent magnet gear 5 and the driven gear 3 are engaged. This compensates for the error caused by the machining of the fixed seat 1 and further improves the stability of the drive device transmission.

[0031] Preferred, such as Figure 5 As shown, the base 18 is provided with a fixing block 20 that is threadedly connected to the screw 19. The base 18 is provided with a T-shaped groove 21. The end of the screw 19 is provided with a T-shaped block 22. The two sides of the T-shaped block 22 are in contact with the base 18. By rotating the screw 19 on the base 18, since the screw 19 is threadedly connected to the fixing block 20, the screw 19 is driven to move on the base 18. It also contacts the two sides of the T-shaped groove 21 through the T-shaped block 22. The T-shaped block 22 can rotate relative to the T-shaped groove 21, so that the screw 19 pushes the fixing seat 1 to move on the base 18, and drives the permanent magnet gear 5 on the fixing seat 1 to move until the permanent magnet gear 5 and the driven gear 3 are meshed. This compensates for the error caused by the machining of the fixing seat 1 and further improves the stability of the drive device transmission.

[0032] Preferred, such as Figure 5 As shown, the fixed block 20 has nuts 23 threadedly connected to the screw 19 on both sides. One side of each nut 23 contacts the two sides of the fixed block 20. After adjusting the position of the permanent magnet gear 5, the two nuts 23 are rotated on the screw 19 until one side of each nut 23 contacts the two sides of the fixed block 20. The resulting resistance will restrict the movement of the screw 19 relative to the fixed block 20, thereby restricting the movement of the permanent magnet gear 5 on the base 18. This prevents the permanent magnet gear 5 from being accidentally driven to move, changing the meshing relationship between the permanent magnet gear 5 and the driven gear 3, and affecting the overall transmission stability of the drive device.

[0033] Preferred, such as Figure 5 As shown, the base 18 is provided with a guide rod 24, and the fixed seat 1 is provided with a guide hole 25 that is slidably connected to the guide rod 24. Through the slidable connection between the guide rod 24 and the guide hole 25, the fixed seat 1 is guided to slide on the base 18, so as to avoid it deviating from the specified direction, changing the meshing relationship between the permanent magnet gear 5 and the driven gear 3, and affecting the overall transmission stability of the drive device.

[0034] Example 1

[0035] This utility model provides a permanent magnet gear direct drive device for a rotary drum pulper, such as... Figures 2-4 As shown, when the rotating drum 2 needs to be driven to rotate, an alternating current is supplied to the stator 7 winding, causing the stator 7 to generate a rotating magnetic field. This magnetic field interacts with several permanent magnets 10 on the permanent magnet gear 5. Combined with the rotational connection between the rotor disk 6 and the fixed shaft 4, the permanent magnet gear 5 rotates around the stator 7 shaft. At the same time, since the permanent magnet gear 5 directly meshes with the driven gear 3, it directly drives the rotating drum 2 to rotate and crushes and decomposes the waste paper and other raw materials inside the rotating drum 2. Furthermore, the method of directly driving the driven gear 3 through the permanent magnet gear 5 replaces the driving method of the motor 26, hydraulic coupling 27, reducer, coupling 28, pinion 29 and gear 30, thereby reducing the space required for installation and the cost of manufacturing the drive device, and greatly improving the installation efficiency and rotation efficiency of the rotary drum pulper drive device. In addition, the transmission ratio of the direct drive device can be changed by changing the number of slots in the permanent magnets 10 and the stator core 8, thereby adjusting the rotation speed of the rotating drum 2.

[0036] Example 2

[0037] Based on Example 1, such as Figure 3As shown, the bearing 12 is sleeved on the outside of the fixed shaft 4 and inserted into the groove 11. Through the friction between the bearing 12 and the fixed shaft 4 and the rotor disk 6, the bearing 12 is stably installed between the fixed shaft 4 and the rotor disk 6. At the same time, the bearing 12 reduces the friction between the rotor disk 6 and the fixed shaft 4, making the permanent magnet gear 5 rotate more stably on the fixed seat 1 and preventing the permanent magnet gear 5 from leaving the designated track, thereby improving the transmission efficiency of the drive device. In addition, the bearing cover 13 is installed on the rotor disk 6. The protrusion 14 on one side of the bearing cover 13 contacts one side of the bearing 12, and the other side of the bearing 12 contacts the rotor disk 6, restricting the axial movement of the bearing 12 on the rotor disk 6 and improving the transmission stability of the drive device.

[0038] In addition, a first sealing ring 16 and a second sealing ring 17 are respectively provided between the bearing cover 13 and the rotor disk 6 and the fixed shaft 4 to prevent external dust from entering the interior of the permanent magnet gear 5 and the stator 7, thereby improving the stability of the drive device transmission.

[0039] Example 3

[0040] Based on Example 1, such as Figure 2 , Figure 3 and Figure 5 As shown, by rotating the screw 19 on the base 18, since the screw 19 is threadedly connected to the fixed block 20, the screw 19 moves on the base 18 and contacts both sides of the T-shaped slot 21 through the T-shaped block 22. The T-shaped block 22 can rotate relative to the T-shaped slot 21, so that the screw 19 pushes the fixed seat 1 to move on the base 18, and drives the permanent magnet gear 5 on the fixed seat 1 to move until the permanent magnet gear 5 and the driven gear 3 complete meshing. This compensates for the error caused by the machining of the fixed seat 1 and further improves the stability of the drive device transmission. In addition, the sliding connection between the guide rod 24 and the guide hole 25 guides the sliding of the fixed seat 1 on the base 18, preventing it from deviating from the specified direction and changing the meshing relationship between the permanent magnet gear 5 and the driven gear 3, thereby improving the overall transmission stability of the drive device.

[0041] After adjusting the position of the permanent magnet gear 5, rotate the two nuts 23 on the screw 19 until one side of each nut 23 contacts the two sides of the fixed block 20. The resulting resistance will restrict the movement of the screw 19 relative to the fixed block 20, thereby restricting the movement of the permanent magnet gear 5 on the base 18. This will prevent the permanent magnet gear 5 from being accidentally driven to move in the future, thus changing the meshing relationship between the permanent magnet gear 5 and the driven gear 3, and improving the overall transmission stability of the drive device.

Claims

1. A permanent magnet gear direct drive device for a rotary drum pulper, comprising a fixed base (1) and a driven gear (3) disposed outside the rotary drum (2), characterized in that: The fixed base (1) is provided with a fixed shaft (4) and also includes a permanent magnet gear (5) sleeved on the outside of the fixed shaft (4) and meshing with the driven gear (3). The two ends of the permanent magnet gear (5) are respectively provided with rotor disks (6) rotatably connected to the fixed shaft (4). A stator (7) is provided between the two rotor disks (6). The stator (7) includes a stator core (8) set on the fixed shaft (4) and a stator coil (9) wound on the outside of the stator core (8). The inner side of the permanent magnet gear (5) is provided with a number of permanent magnets (10) that cooperate with the stator (7).

2. The permanent magnet gear direct drive device for a rotary drum pulper according to claim 1, characterized in that: One end of the rotor disk (6) is provided with a groove (11), and a bearing (12) sleeved on the outside of the fixed shaft (4) is provided in the groove (11).

3. The permanent magnet gear direct drive device for a rotary drum pulper according to claim 2, characterized in that: One end of the rotor disk (6) is provided with a bearing cover (13), and one side of the bearing cover (13) is provided with a protrusion (14) that contacts the bearing (12).

4. The permanent magnet gear direct drive device for a rotary drum pulper according to claim 3, characterized in that: The bearing cover (13) and rotor disk (6) are respectively provided with a first sealing ring (16) and a second sealing ring (17) between them and the fixed shaft (4).

5. A permanent magnet gear direct drive device for a rotary drum pulper according to claim 4, characterized in that: It also includes a base (18), the fixed seat (1) is slidably disposed on the base (18), and the base (18) is provided with a screw (19) for driving the base (18) to slide.

6. A permanent magnet gear direct drive device for a rotary drum pulper according to claim 5, characterized in that: The base (18) is provided with a fixing block (20) that is threadedly connected to the screw (19). The base (18) is provided with a T-shaped groove (21). The end of the screw (19) is provided with a T-shaped block (22). The two sides of the T-shaped block (22) are in contact with the base (18).

7. A permanent magnet gear direct drive device for a rotary drum pulper according to claim 6, characterized in that: The fixing block (20) has nuts (23) that are threadedly connected to the screw (19) on both sides, and one side of each nut (23) is in contact with the two sides of the fixing block (20).

8. A permanent magnet gear direct drive device for a rotary drum pulper according to claim 5, characterized in that: The base (18) is provided with a guide rod (24), and the fixed seat (1) is provided with a guide hole (25) that is slidably connected to the guide rod (24).

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