Gearless direct drive long-life electric drum

Abstract

The utility model relates to the field of roller, concretely relates to a gearless direct drive long -life electric roller, fixed mounting is in first support with second support, including inner roller and outer roller, the inner roller is fixed in first support top end, the outer surface of inner roller is through a plurality of first bearing rotation installation in the inner surface of outer roller, the inner roller inside fixed has gearless direct drive type subassembly, gearless direct drive type subassembly is connected with outer roller fixedly, the outer roller is rotation installation in second support through rotating subassembly, still fixed with heat dissipation subassembly on first support, the utility model has the advantages of: can through adopting gearless direct drive technology, directly drive outer roller rotation, need not gear drive, make the service life of product has been greatly promoted, especially in the application in the process of frequently starting and stopping, and gearless direct drive type drive makes the electric roller in the operation process noise greatly reduces.

Description

Technical Field

[0001] This utility model relates to the field of rollers, specifically to a gearless direct-drive long-life electric roller. Background Technology

[0002] Rollers are cylindrical parts, divided into drive rollers and driven rollers. They are used in various transmission and conveying systems such as printing machines, digital printers, papermaking and packaging machinery, and are mostly made of stainless steel, cast steel, or solid forged alloy steel cores.

[0003] Conventional electric rollers typically use a motor to drive gears to transmit power to the rollers. This can lead to gear wear, especially in applications with frequent start-ups and stops, which can affect the service life of the rollers.

[0004] Therefore, it is necessary to invent a gearless direct-drive long-life electric roller. Utility Model Content

[0005] Therefore, this utility model provides a gearless direct-drive long-life electric roller to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gearless direct-drive long-life electric roller, fixedly installed on a first bracket and a second bracket, including an inner roller and an outer roller. The inner roller is fixedly fixed through the top of the first bracket. The outer surface of the inner roller is rotatably mounted on the inner surface of the outer roller through a plurality of first bearings. A gearless direct-drive component is fixed inside the inner roller. The gearless direct-drive component is fixedly connected to the outer roller. The outer roller is rotatably mounted on the second bracket through a rotating component. A heat dissipation component is also fixed on the first bracket.

[0007] Preferably, the gearless direct-drive assembly includes a first cross, which is fixed inside the inner roller at one end away from the first support.

[0008] Preferably, a speed reducer is fixed to the side end of the first cross, a servo motor is fixed to the side end of the speed reducer, the output shaft of the servo motor is fixedly connected to the input shaft of the speed reducer, the output shaft of the speed reducer passes through the center of the first cross, and a drive shaft is fixed to the output shaft of the speed reducer.

[0009] Preferably, the gearless direct drive assembly further includes a second cross, which is fixed inside the outer roller near one end of the second bracket, and the end of the drive shaft is fixed to the center of the inner end of the second cross.

[0010] Preferably, the rotating assembly includes a support shaft, which is fixed to the center of the outer end of the second cross, passes through the top of the second bracket, and is rotatably mounted on the top of the second bracket via a second bearing.

[0011] Preferably, the heat dissipation assembly includes a horizontally arranged support plate, the end of which is fixed to the side of the first bracket, and a fan is fixed to the top of the support plate.

[0012] Preferably, the fan input end is fixedly connected to an air inlet hood, the inner side of the air inlet hood is fixedly connected to a first dustproof net, the fan output end is fixedly connected to an air delivery hose, the end of the air delivery hose is fixedly connected to a connecting sleeve, and the inner surface of the connecting sleeve is threadedly connected to the end of the outer surface of the inner roller.

[0013] Preferably, the heat dissipation assembly further includes a second dustproof mesh, which is fixed inside the second cross.

[0014] The beneficial effects of this utility model are: 1. By using the first bracket, second bracket, inner roller, outer roller, first bearing, gearless direct drive component, and rotating component in combination, the outer roller can be directly driven to rotate by using gearless direct drive technology, eliminating the need for gear transmission. This greatly extends the product's service life, especially in applications with frequent start-stop cycles. Furthermore, the gearless direct drive significantly reduces noise during operation of the electric roller. 2. With the use of the heat dissipation components, the servo motor can be effectively cooled, thus ensuring the stability of the electric roller during operation. Attached Figure Description

[0015] Figure 1 A structural cross-sectional view provided for this utility model; Figure 2 A side view of the structure of the first cross provided by this utility model; Figure 3 A side view of the structure of the second cross provided by this utility model; Figure 4 The main structural view provided for this utility model.

[0016] In the diagram: 1. First support; 2. Second support; 3. Inner roller; 4. Outer roller; 5. First bearing; 6. First cross; 7. Reducer; 8. Servo motor; 9. Drive shaft; 10. Second cross; 11. Support shaft; 12. Second bearing; 13. Support plate; 14. Fan; 15. Air inlet hood; 16. First dustproof net; 17. Air supply hose; 18. Connecting sleeve; 19. Second dustproof net. Detailed Implementation

[0017] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0018] Please refer to the appendix. Figures 1-4 This utility model provides a gearless direct-drive long-life electric roller, which is fixedly installed on a first bracket 1 and a second bracket 2. The first bracket 1 and the second bracket 2 are symmetrically arranged rigid support structures, including an inner roller 3 and an outer roller 4. The inner roller 3 is a hollow cylindrical structure, and the outer roller 4 is a working roller surface. The inner roller 3 is fixed through the top of the first bracket 1. The outer surface of the inner roller 3 is rotatably installed on the inner surface of the outer roller 4 through a plurality of first bearings 5. A gearless direct-drive component is fixed inside the inner roller 3. The gearless direct-drive component is fixedly connected to the outer roller 4. The outer roller 4 is rotatably installed on the second bracket 2 through a rotating component. A heat dissipation component is also fixed on the first bracket 1. The gearless direct-drive assembly includes a first cross 6, which is fixed inside the inner roller 3 at one end away from the first support 1. A reducer 7 is fixed to the side of the first cross 6. It should be noted that the reducer is a transmission device used for low-speed, high-torque transmission. It reduces the speed of the high-speed motor by meshing a small gear on the input shaft with a large gear on the output shaft. A servo motor 8 is fixed to the side of the reducer 7. The output shaft of the servo motor 8 is fixedly connected to the input shaft of the reducer 7. The servo motor 8 is a permanent magnet synchronous servo motor with encoder feedback. The output shaft is fixedly connected to the input shaft of the reducer 7 by a coupling or a direct key. The output shaft of the reducer 7 passes through the center of the first cross 6, and a drive shaft 9 is fixed to the output shaft of the reducer 7. Specifically, under the action of the reducer 7, when the servo motor 8 is running, it can drive the drive shaft 9 to rotate slowly in both directions. The gearless direct drive assembly also includes a second cross 10, which is fixed inside the outer roller 4 near one end of the second bracket 2. The end of the drive shaft 9 is fixed to the center of the inner end of the second cross 10. Specifically, when the servo motor 8 drives the drive shaft 9 to rotate slowly in both directions, the second cross 10 can drive the outer roller 4 to rotate slowly in both directions synchronously, thus realizing the function of an electric roller. Moreover, the gearless direct drive technology directly drives the outer roller 4 to rotate without the need for gear transmission, which greatly extends the service life of the product, especially in applications with frequent start-stop operations. Furthermore, the gearless direct drive greatly reduces the noise of the electric roller during operation. The rotating assembly includes a support shaft 11, which is fixed to the center of the outer end of the second cross 10. The support shaft 11 passes through the top end of the second bracket 2 and is rotatably mounted on the top end of the second bracket 2 via the second bearing 12. Specifically, under the action of the second bearing 12 and the support shaft 11, the second bracket 2 can effectively support the rotation of the outer roller 4 to improve the stability of the rotation of the outer roller 4. The heat dissipation assembly includes a horizontally arranged support plate 13. The end of the support plate 13 is fixed to the side of the first bracket 1. A fan 14 is fixed to the top of the support plate 13. An air inlet hood 15 is fixedly connected to the input end of the fan 14. A first dustproof net 16 is fixed to the inside of the air inlet hood 15. An air delivery hose 17 is fixedly connected to the output end of the fan 14. A connecting sleeve 18 is fixedly connected to the end of the air delivery hose 17. The inner surface of the connecting sleeve 18 is threaded to the end of the outer surface of the inner roller 3. The heat dissipation assembly also includes a second dustproof net 19, which is fixed inside the second cross 10. Specifically, when the fan 14 is running, it can draw in air through the air inlet hood 15, filter it through the first dustproof net 16, and accelerate it to form cold air. Then, it is blown into the inner roller 3 through the air delivery hose 17 and the connecting sleeve 18, thereby blowing towards the servo motor 8, and then into the outer roller 4. Finally, it is blown out through the second dustproof net 19 on the second cross 10, thereby effectively dissipating heat from the servo motor 8 and ensuring the stability of the electric roller during operation. It should be noted that the fan 14 is preferably a centrifugal or axial blower, and its rated air volume should be sufficient to cover the heat generated by the servo motor 8 and the reducer 7. Typically, the air volume should not be less than [amount missing]. .

[0019] It should be noted that the servo motor 8 and the fan 14 in this utility model are connected to the external controller and the 220V / 380V mains power through cables. The controller can be an existing technology device with control functions such as a PLC, frequency converter or dedicated servo driver, which has start-stop control, speed adjustment and other functions. The wiring of the servo motor 8 is led out through the inside of the inner roller 3 to ensure safety and reliability.

[0020] The usage process of this utility model is as follows: During use, the servo motor 8 and the fan 14 run. Under the action of the reducer 7, when the servo motor 8 runs, it can drive the drive shaft 9 to rotate slowly in both directions. When the servo motor 8 runs and drives the drive shaft 9 to rotate slowly in both directions, the outer roller 4 can be driven to rotate slowly in both directions synchronously through the second cross 10, thus realizing the function of the electric roller. Moreover, the gearless direct drive technology is adopted to directly drive the outer roller 4 to rotate without the need for gear transmission, which greatly improves the service life of the product, especially in applications with frequent start and stop. In addition, the gearless direct drive greatly reduces the noise of the electric roller during operation. Then, when the fan 14 is running, it can draw in air through the air intake hood 15, filter it through the first dustproof net 16 and accelerate it to form cold air, and then blow it into the inner drum 3 through the air delivery hose 17 and the connecting sleeve 18, thereby blowing it towards the servo motor 8, and then into the outer drum 4, and finally blow it out through the second dustproof net 19 on the second cross 10, thereby effectively cooling the servo motor 8 and effectively ensuring the stability of the electric drum during operation.

[0021] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art can modify this utility model or modify it into an equivalent technical solution using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solution of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A gearless direct-drive long-life electric roller, fixedly mounted on a first bracket (1) and a second bracket (2), characterized in that: It includes an inner roller (3) and an outer roller (4). The inner roller (3) is fixed through the top of the first bracket (1). The outer surface of the inner roller (3) is rotatably mounted on the inner surface of the outer roller (4) through a number of first bearings (5). A gearless direct drive assembly is fixed inside the inner roller (3). The gearless direct drive assembly is fixedly connected to the outer roller (4). The outer roller (4) is rotatably mounted on the second bracket (2) through a rotating assembly. A heat dissipation assembly is also fixed on the first bracket (1).

2. The gearless direct-drive long-life electric roller according to claim 1, characterized in that: The gearless direct drive assembly includes a first cross (6), which is fixed inside the inner roller (3) at one end away from the first bracket (1).

3. The gearless direct-drive long-life electric roller according to claim 2, characterized in that: A speed reducer (7) is fixed to the side of the first cross (6), and a servo motor (8) is fixed to the side of the speed reducer (7). The output shaft of the servo motor (8) is fixedly connected to the input shaft of the speed reducer (7). The output shaft of the speed reducer (7) passes through the center of the first cross (6), and a drive shaft (9) is fixed to the output shaft of the speed reducer (7).

4. A gearless direct-drive long-life electric roller according to claim 3, characterized in that: The gearless direct drive assembly also includes a second cross (10), which is fixed inside the outer roller (4) at one end near the second bracket (2), and the end of the drive shaft (9) is fixed to the center of the inner end of the second cross (10).

5. A gearless direct-drive long-life electric roller according to claim 4, characterized in that: The rotating assembly includes a support shaft (11), which is fixed at the center of the outer end of the second cross (10). The support shaft (11) passes through the top of the second bracket (2) and is rotatably mounted on the top of the second bracket (2) via a second bearing (12).

6. A gearless direct-drive long-life electric roller according to claim 4, characterized in that: The heat dissipation assembly includes a horizontally arranged support plate (13), the end of which is fixed to the side of the first bracket (1), and a fan (14) is fixed to the top of the support plate (13).

7. A gearless direct-drive long-life electric roller according to claim 6, characterized in that: The fan (14) has an air intake hood (15) fixedly connected to its input end. A first dustproof net (16) is fixedly connected to the inside of the air intake hood (15). The fan (14) has an air delivery hose (17) fixedly connected to its output end. A connecting sleeve (18) is fixedly connected to the end of the air delivery hose (17). The inner surface of the connecting sleeve (18) is threadedly connected to the end of the outer surface of the inner roller (3).

8. A gearless direct-drive long-life electric roller according to claim 7, characterized in that: The heat dissipation assembly also includes a second dustproof mesh (19), which is fixed inside the second cross (10).

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