Integrated roller motor for conveying materials
By using rubber rings in the drum motor, the concentricity error between the reducer output shaft and the rotating flange was solved, which improved transmission efficiency and reduced noise, achieving more efficient power transmission and noise reduction.
Patent Information
- Application Number
- CN202423026208.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-09
AI Technical Summary
In existing drum motors, the concentricity error between the reducer output shaft and the rotating flange leads to significant power transmission losses, affecting transmission efficiency and causing noise problems.
A soft non-metallic material—a first rubber ring—is added to the output end of the drive motor and the reducer to ensure that the bearing center is concentric with the reducer's rotation center. Combined with the vibration damping and noise reduction characteristics of the rubber material, noise and power loss are reduced.
It improves power transmission efficiency, significantly reduces the noise of the drum motor, and enhances the stability and reliability of the transmission.
Smart Images

Figure CN223509022U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor manufacturing technology, and in particular to an integrated roller motor for conveying materials. Background Technology
[0002] With the rapid development of industrial automation, automated production lines have become an important part of modern industrial production. In these automated production lines, roller conveyors play a crucial role, not only in material handling and loading / unloading but also directly impacting the efficiency and production capacity of the entire production line.
[0003] The transmission structure of a drum motor is as follows: the motor generates power and outputs it to the reducer. After speed reduction, the reducer transmits the power to the rotating flange, thereby driving the outer tube to rotate. In this transmission process, the efficiency of the motor and reducer has limited room for improvement under the same conditions. Currently, in drum motors, the reducer output shaft and the rotating flange are rigidly connected. Since the rotating flange and the end caps are tightly fitted into the outer tube, there will be some degree of misalignment between the bearing center and the reducer's rotation center. This problem mainly stems from the straightness of the outer tube; a smaller concentricity error results in less power transmission loss, and vice versa. Utility Model Content
[0004] The purpose of this invention is to provide an integrated roller motor for conveying materials, so as to solve the problems encountered in the background art.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] An integrated roller motor for conveying materials includes an outer tube, a drive motor, and a reducer. The drive motor is drivenly connected to the reducer and installed in the outer tube. The output end of the reducer is drivenly connected to a tail shaft. A rotating flange is installed at the root of the tail shaft. One side of the rotating flange is in contact with the output end of the reducer through a front bracket. A first rubber ring is installed between the front bracket and the inside of the rotating flange. The other side of the rotating flange is in contact with the root of the tail shaft through a first bearing. A tolerance ring that engages with the outer tube is installed on the outer wall of the rotating flange.
[0007] In the above scheme, the inlet end of the drive motor is connected to the outlet shaft, and the two ends of the outer tube are respectively provided with sealing components. The side of the sealing component near the drive motor is used to seal the outlet shaft, and the side of the sealing component near the tail shaft is used to seal the tail shaft.
[0008] As a preferred embodiment, a cable is connected to the end of the output shaft, and a sheath is installed at the connection between the cable and the output shaft.
[0009] In the above solution, the sealing assembly includes a cover, an oil seal, and a dust ring. The outer side of the cover is snapped into the outer tube, and the inner side of the cover is rotatably connected to the outlet shaft or tail shaft via a second bearing. The outer side of the cover contacts the outlet shaft or tail shaft via the oil seal, and the dust ring is installed at the end of the cover. A shaft retaining ring and a hole retaining ring are provided at the connection between the cover and the second bearing to secure the second bearing.
[0010] In the above scheme, a motor mounting base is installed on the side of the drive motor near the output shaft. A cover plate is installed on the outer side of the motor mounting base by screws. The outer periphery of the root of the output shaft is connected to the drive motor by a sealing ring. A rear bracket is installed on the inner side of the motor mounting base. The rear bracket is connected to the inner side of the motor mounting base by a second rubber ring. The rear bracket wraps around the outside of the output shaft.
[0011] Compared with existing technologies, the beneficial effects of this invention are as follows: A soft non-metallic material—a first rubber ring—is added to the output end of the drive motor and reducer. During operation, this ensures that the bearing center and the reducer's rotation center are concentric, minimizing power loss and improving transmission efficiency. Simultaneously, the rubber material also has vibration damping and noise reduction effects, significantly reducing the noise of the drum motor. Furthermore, soft rubber material is also incorporated into the installation of the drive motor base, further reducing the noise generated by the drum motor during operation. Attached Figure Description
[0012] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the external structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the internal structure of the present invention after the drive motor has been removed.
[0016] Figure 4 This is an exploded view of the reducer, tail shaft assembly, and sealing assembly in this utility model;
[0017] Figure 5 This is an exploded view of the lead-out spool assembly and sealing assembly in this utility model.
[0018] Numbering in the diagram: 1-Outer tube; 2-Drive motor; 21-Motor mounting base; 22-Sealing ring; 23-Second rubber ring; 24-Rear bracket; 25-Cover plate; 3-Reducer; 31-Rotating flange; 32-Front bracket; 33-First bearing; 34-First rubber ring; 35-Tolerance ring; 4-Tail shaft; 5-Sealing assembly; 51-Cap; 52-Shaft retaining ring; 53-Hole retaining ring; 54-Oil seal; 55-Dustproof ring; 56-Second bearing; 6-Outlet shaft; 61-Cable; 62-Sheath. Detailed Implementation
[0019] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the utility model will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of this utility model, and therefore only show the relevant components of this utility model.
[0020] Based on the technical solution of this utility model, without changing the essential spirit of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model, and should not be regarded as the entirety of this utility model or as a limitation or restriction of the technical solution of this utility model.
[0021] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0022] Example 1, as Figure 1-3 As shown, an integrated roller motor for conveying materials includes an outer tube 1, a drive motor 2, and a reducer 3. The drive motor 2 and reducer 3 are connected and installed within the outer tube 1, secured together by long-rod screws. A tail shaft 4 is connected to the output end of the reducer 3, and a rotating flange 31 is mounted at the base of the tail shaft 4. During operation, the drive motor 2 rotates the output end of the reducer 3, which in turn drives the rotating flange 31 to rotate via the tail shaft 4, thereby rotating the outer tube 1 and driving the belt wrapped around it to convey materials.
[0023] One side of the rotating flange 31 is in contact with the output end of the reducer 3 via the front bracket 32. A first rubber ring 34 is installed between the front bracket 32 and the interior of the rotating flange 31. The other side of the rotating flange 31 is in contact with the root of the tail shaft 4 via the first bearing 33. A tolerance ring 35 that engages with the outer tube 1 is installed on the outer wall of the rotating flange 31, thereby driving the outer tube 1 to rotate.
[0024] In this research and development, a soft non-metallic material—the first rubber ring 34—was added to the output end of the drive motor 2 and the reducer 3. During operation, this ensures that the bearing center and the reducer rotation center are concentric, minimizing power loss and improving transmission efficiency. At the same time, the rubber material also has the functions of shock absorption and noise reduction, which can significantly reduce the noise of the drum motor.
[0025] In practice, the inlet end of the drive motor 2 is connected to the outlet shaft 6, and the two ends of the outer tube 1 are respectively provided with sealing components 5. That is to say, there are two sealing components 5 in the same outer tube 1. One sealing component 5 is located on the side closer to the drive motor 2 and is used to seal the outlet shaft 6; the other sealing component 5 is located on the side closer to the tail shaft 4 and is used to seal the tail shaft 4.
[0026] As a preferred embodiment, the end of the output shaft 6 is connected to a cable 61, which is mainly a three-phase power cable to provide power to the drive motor 2. A sheath 62 is installed at the connection between the cable 61 and the output shaft 6 to prevent wear during installation and dragging.
[0027] With the rapid development of industrial automation, the number of control, sensing, and actuator components in equipment is increasing, placing higher demands on control and communication methods. The existing IO / RS-485 communication method can no longer meet these needs. Therefore, during research and development, a fieldbus control method was added, primarily using Modbus TCP, EtherNet / IP, and EtherCAT communication protocols to meet the requirements of complex motor equipment systems. Cable 61 not only connects to three-phase power but also includes electrical control cables. Along with the introduction of bus control, the roller motor controller incorporates ZPA (Zero Pressure Accumulation) logic control, enabling single-piece release, serial release, and serial soft start functions for conveyed materials. This function allows for custom programming of the controller, significantly reducing the programming workload of the main control PLC and improving the controllability of the roller motor and other logistics conveying equipment.
[0028] Example 2, based on the scheme of Example 1, specifically, the sealing assembly 5 includes a cover 51, an oil seal 54, and a dust ring 55. The outer side of the cover 51 is snapped into the outer tube 1, mainly for sealing the end. The inner side of the cover 51 is rotatably connected to the outlet shaft 6 or the tail shaft 4 through a second bearing. The outer side of the cover 51 is in contact with the outlet shaft 6 or the tail shaft 4 through the oil seal 54. The dust ring 55 is installed at the end of the cover 51 to seal the protruding part of the outlet shaft 6 or the tail shaft 4.
[0029] Among them, a shaft retaining ring 52 and a hole retaining ring 53 are provided at the connection between the cover 51 and the second bearing. The shaft retaining ring 52 is used to block the bearing at this point, and the hole retaining ring 53 is used to lock the output shaft 6 or the tail shaft 4. The shaft retaining ring 52 and the hole retaining ring 53 abut against each other, so the bearing is positioned according to the positioning groove of the output shaft 6 or the tail shaft 4, including positioning the second bearings 56 on both sides of the outer tube 1, and positioning the first bearing 33 at the output end of the reducer 3.
[0030] In order to stabilize the drive motor 2 installed inside the outer tube 1 and reduce the vibration of the drive motor 2 during operation to avoid interfering with the material conveying, a motor mounting base 21 is installed on the side of the drive motor 2 near the output shaft 6. A cover plate 25 is installed on the outside of the motor mounting base 21 by screws, which fixes the cover plate 25, the motor mounting base 21 and the drive motor 2 together.
[0031] The outer periphery of the root of the output shaft 6 is connected to the drive motor 2 via a sealing ring 22, effectively sealing the connection. A rear bracket 24 is installed inside the motor mounting base 21, and the rear bracket 24 is connected to the inner side of the motor mounting base 21 via a second rubber ring 23, thus wrapping around the outside of the output shaft 6. The second rubber ring 23 also plays a role in shock absorption and noise reduction, significantly reducing the noise generated by the drum motor during operation.
[0032] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.
[0033] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. An integrated roller motor for conveying materials, characterized in that: The device includes an outer tube (1), a drive motor (2), and a reducer (3). The drive motor (2) is connected to the reducer (3) and installed in the outer tube (1). The output end of the reducer (3) is connected to a tail shaft (4). A rotating flange (31) is installed at the root of the tail shaft (4). One side of the rotating flange (31) is in contact with the output end of the reducer (3) through a front bracket (32). A first rubber ring (34) is installed between the front bracket (32) and the inside of the rotating flange (31). The other side of the rotating flange (31) is in contact with the root of the tail shaft (4) through a first bearing (33). A tolerance ring (35) that engages with the outer tube (1) is installed on the outer wall of the rotating flange (31).
2. An integrated roller motor for conveying materials according to claim 1, characterized in that: The inlet end of the drive motor (2) is connected to the outlet shaft (6), and the two ends of the outer tube (1) are respectively provided with sealing components (5). The side of the sealing component (5) near the drive motor (2) is used to seal the outlet shaft (6), and the side of the sealing component (5) near the tail shaft (4) is used to seal the tail shaft (4).
3. An integrated roller motor for conveying materials according to claim 2, characterized in that: The end of the outlet shaft (6) is connected to a cable (61), and a sheath (62) is installed at the connection between the cable (61) and the outlet shaft (6).
4. An integrated roller motor for conveying materials according to claim 2, characterized in that: The sealing assembly (5) includes a cover (51), an oil seal (54), and a dust ring (55). The outer side of the cover (51) is snapped into the outer tube (1), and the inner side of the cover (51) is rotatably connected to the outlet shaft (6) or the tail shaft (4) through a second bearing. The outer side of the cover (51) is in contact with the outlet shaft (6) or the tail shaft (4) through the oil seal (54). The dust ring (55) is installed at the end of the cover (51).
5. An integrated roller motor for conveying materials according to claim 4, characterized in that: The connection between the cover (51) and the second bearing is provided with a shaft retaining ring (52) and a hole retaining ring (53).
6. An integrated roller motor for conveying materials according to claim 2, characterized in that: The drive motor (2) is mounted with a motor mounting base (21) on the side near the output shaft (6). A cover plate (25) is mounted on the outside of the motor mounting base (21) by screws. The outer periphery of the root of the output shaft (6) is connected to the drive motor (2) by a sealing ring (22). A rear bracket (24) is mounted on the inner side of the motor mounting base (21). The rear bracket (24) is connected to the inner side of the motor mounting base (21) by a second rubber ring (23). The rear bracket (24) wraps around the outside of the output shaft (6).