Electric roller

Abstract

The invention relates to the technical field of conveying equipment, in particular to an electric roller which comprises a roller shell of a cylindrical structure, an inner cavity is formed in the roller shell, end transmission positions are arranged at the two ends of the roller shell, and a plurality of middle transmission positions are arranged in the middle of the roller shell; the fixing shaft is coaxially arranged in the inner cavity in a penetrating mode, and the roller shell is rotationally connected to the fixing shaft; the roller motor is fixedly connected to the fixed shaft, and the roller motor is arranged in the inner cavity; the reduction gear box is arranged in the inner cavity, the input end of the reduction gear box is in transmission connection with an output shaft of the roller motor, and the output end of the reduction gear box is in transmission connection with the roller shell through a transmission sleeve gear; and the transmission assemblies are installed on the two end transmission positions and the multiple middle transmission positions correspondingly, and the transmission assemblies are used for being in transmission connection with the roller shell and an external execution structure. The electric roller can solve the problem of multi-end output of power.

Description

Technical Field

[0001] This invention relates to the field of conveying equipment technology, and more particularly to electric roller conveyors. Background Technology

[0002] Electric roller motors, as drive units integrating motors and reduction gears, are widely used in the fields of mechanical transmission and roller motors. By cleverly combining the motor and reduction gear, they form a compact and efficient drive system that can provide stable and reliable power output for various mechanical equipment, and are especially suitable for industrial scenarios requiring precise control of speed and torque.

[0003] Traditional electric rollers typically employ a single output shaft design with a fixed transmission method, which cannot meet the power requirements of multiple actuators under complex working conditions. Summary of the Invention

[0004] The purpose of this invention is to provide an electric roller to solve the problem of multi-point power output.

[0005] This invention provides an electric roller, the electric roller comprising:

[0006] The roller shell is configured as a cylindrical structure, and an inner cavity is provided inside the roller shell. End transmission positions are provided at both ends of the roller shell, and several middle transmission positions are provided in the middle of the roller shell.

[0007] A fixed shaft is coaxially inserted into the inner cavity, and the outer shell of the roller is rotatably connected to the fixed shaft;

[0008] A roller motor is fixedly connected to the fixed shaft, and the roller motor is located inside the inner cavity;

[0009] A reduction gearbox is disposed in the inner cavity. The input end of the reduction gearbox is connected to the output shaft of the drum motor, and the output end of the reduction gearbox is connected to the drum shell through a transmission sleeve.

[0010] Multiple transmission components are installed on the two end transmission positions and several middle transmission positions. The transmission components are used to drive the roller shell and the external actuator.

[0011] As an optional technical solution, the drum housing includes at least two coaxially connected sub-housings, the sub-housings being configured as cylindrical structures, the end transmission position being formed at the outer end of the sub-housing located at the end, and the middle transmission position being formed by spacing between two adjacent sub-housings, the drum motor and the reduction gearbox being installed in the same sub-housing.

[0012] As an optional technical solution, the transmission assembly includes a fixed member and a transmission member for transmission connection. The transmission member can be transmitted to an external actuator, and the fixed member is fixed to the sub-shell. At the central transmission position, the fixed member is simultaneously connected to the two adjacent sub-shells.

[0013] As an optional technical solution, the transmission assembly includes:

[0014] Two end drive assemblies are installed one-to-one at the two end drive positions for driving connection between the roller housing and the external actuator; and

[0015] Several central transmission components are installed one-to-one at several of the aforementioned central transmission positions for driving connection between the roller shell and the external actuator structure.

[0016] As an optional technical solution, the fixing member of the end transmission assembly is provided with a mounting through hole, the mounting through hole is coaxially arranged with the inner cavity, a radial bearing is installed in the mounting through hole, the outer ring of the radial bearing is connected to the fixing member, and the inner ring of the radial bearing is connected to the fixed shaft or pin.

[0017] As an optional technical solution, the fixing component is a sprocket, and the transmission component is a chain.

[0018] As an optional technical solution, the electric roller further includes:

[0019] A control component is disposed within the inner cavity. The control component is installed on the side of the roller motor opposite to the reduction gearbox. The control component is electrically connected to the roller motor and is used to send control commands to the roller motor.

[0020] As an optional technical solution, one end of the fixed shaft extends out of the roller housing, and the fixed shaft is provided with a plurality of through holes arranged along its axial direction. The control component includes a transmission cable for electrical connection with an external power supply and a controller, and the transmission cable passes through the through holes.

[0021] As an optional technical solution, the electric roller also includes an integrated housing, which is configured as a cylindrical structure and coaxially inserted into the inner cavity. The control component and the roller motor are installed inside the integrated housing from the outside to the inside. The first end of the integrated housing is connected to the fixed shaft, and the output shaft of the roller motor passes through the second end of the integrated housing and connects to the reduction gearbox. The housing of the reduction gearbox is connected to the second end of the integrated housing.

[0022] As an optional technical solution, the outer shell is made of alloy material, and the outer surface of the outer shell is provided with an anti-corrosion and wear-resistant layer.

[0023] The beneficial effects of this electric roller are:

[0024] This electric roller includes a roller shell, a fixed shaft, a roller motor, a reduction gearbox, and multiple transmission components. End drive positions are located at both ends of the roller shell, and several middle drive positions are located in the middle of the roller shell. Transmission components are installed on the two end drive positions and the several middle drive positions. These transmission components are used to connect the roller shell to external actuators. When the roller motor drives the roller shell to rotate via the reduction gearbox, the multiple transmission components rotate synchronously with the roller shell, transmitting rotational power to multiple external actuators through the transmission components. This achieves multi-end power output, meeting the power requirements of multiple actuators under complex working conditions. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the electric roller in an embodiment of the present invention;

[0026] Figure 2 This is a cross-sectional view of the electric roller in an embodiment of the present invention;

[0027] Figure 3 This is a partial structural diagram of the electric roller in an embodiment of the present invention;

[0028] Figure 4 This is a partial structural cross-sectional view of the electric roller in an embodiment of the present invention.

[0029] In the picture:

[0030] 1. Drum outer shell; 10. Inner cavity; 11. Sub-shell; 101. End transmission position; 102. Middle transmission position;

[0031] 2. Drum motor; 21. Fixed shaft; 22. Shaft assembly; 23. Floating sleeve;

[0032] 3. Reduction gearbox;

[0033] 4. Transmission sleeve gear;

[0034] 5. Transmission assembly; 51. Fixing component; 52. Mounting through hole;

[0035] 6. Control components; 61. Transmission cables;

[0036] 7. One-piece casing;

[0037] 8. Radial bearings;

[0038] 9. Pins. Detailed Implementation

[0039] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0043] like Figures 1 to 4As shown, this embodiment provides an electric roller, which includes a roller shell 1, a fixed shaft 21, a roller motor 2, a reduction gearbox 3, and multiple transmission components 5. The roller shell 1 is configured as a cylindrical structure with an inner cavity 10 inside. The roller motor 2 and the reduction gearbox 3 are both located inside the inner cavity 10. The fixed shaft 21 is coaxially inserted through the inner cavity 10. The roller shell 1 is rotatably connected to the fixed shaft 21, and the roller motor 2 is fixedly connected to the fixed shaft 21. The input end of the reduction gearbox 3 is drivenly connected to the output shaft of the roller motor 2, and the output end of the reduction gearbox 3 is drivenly connected to the roller shell 1 through a transmission sleeve 4. When the roller motor 2 outputs rotational power, it is reduced by the reduction gearbox 3 and transmitted to the roller shell 1, causing the roller shell 1 to rotate around its axis, thereby driving the conveyor belt wound on it to rotate, so as to realize the function of conveying materials.

[0044] Furthermore, both ends of the drum housing 1 are provided with end transmission positions 101, and the middle of the drum housing 1 is provided with several middle transmission positions 102. The electric drum also includes multiple transmission components 5. Transmission components 5 are installed on the two end transmission positions 101 and the several middle transmission positions 102. The transmission components 5 are used to drive the drum housing 1 and the external actuator.

[0045] Specifically, when the drum motor 2 drives the drum housing 1 to rotate through the reduction gearbox 3, in addition to driving the conveyor belt to rotate through the drum housing 1 to achieve basic conveying operations, multiple transmission components 5 rotate synchronously with the drum housing 1. The rotational power is transmitted to multiple external actuators through the transmission components 5, achieving the effect of multi-end power output and meeting the power requirements of multiple actuators under complex working conditions.

[0046] For example, the drum motor 2 can be a permanent magnet synchronous motor, a brushless DC motor, an AC asynchronous motor, or other rotary motors.

[0047] For example, the reduction gearbox 3 can be a planetary gearbox, a parallel shaft helical gearbox, etc. In this embodiment, the reduction gearbox 3 is a planetary gearbox, which has the advantages of shared load distribution among multiple planetary gears, extremely high power density, compact structure, and large transmission ratio, making it very suitable for high torque and space-constrained application scenarios.

[0048] For example, the drum housing 1 includes at least two coaxially connected sub-housings 11. The sub-housings 11 are configured as cylindrical structures, with an end drive position 101 formed at the outer end of the end sub-housing 11. Adjacent sub-housings 11 are spaced apart to form a middle drive position 102. The drum motor 2 and the reduction gearbox 3 are mounted inside the same sub-housing 11. In this embodiment, the drum housing 1 includes two coaxially connected sub-housings 11.

[0049] In some embodiments, the roller housing 1 may also be configured as an integral structure, with a window structure provided on the peripheral wall of the roller housing 1 for mounting the transmission assembly 5.

[0050] For example, the transmission assembly 5 includes a fixed member 51 for transmission connection and a transmission member (not shown in the figure). The transmission member can be transmitted to an external actuator. The fixed member 51 is fixed to the sub-shell 11. At the middle transmission position 102, the fixed member 51 is connected to two adjacent sub-shells 11. That is, the two adjacent sub-shells 11 are connected to each other through the fixed member 51. In addition to the transmission function, the fixed member 51 also serves as a connection to the two sub-shells 11.

[0051] For example, the fixing member 51 can be a wheel-type structure such as a sprocket, gear, pulley, or cam, and its end is connected to the sub-housing 11 by means of plug-in, screw fastening, or snap-fit. The transmission component can be a movable structure such as a chain, gear, rack, belt, or slider that is compatible with the fixing member 51. In this embodiment, the fixing member 51 is a sprocket, and its end is fixed to the sub-housing 11 by plug-in. The transmission component is a chain. It can be understood that, depending on the type of the external actuator, the various transmission components 5 in the electric roller can be set to be the same or different.

[0052] For example, the transmission assembly 5 includes two end transmission assemblies and several middle transmission assemblies. The two end transmission assemblies are installed one-to-one at two end transmission positions 101 for transmitting power between the roller housing 1 and the external actuator. The several middle transmission assemblies are installed one-to-one at several middle transmission positions 102 for transmitting power between the roller housing 1 and the external actuator. It can be understood that if the number of sub-housings 11 is N, the number of middle transmission positions 102 is N-1. In this embodiment, the number of sub-housings 11 is two, and the number of middle transmission positions 102 is one.

[0053] For example, the two ends of the drum shell 1 are rotatably mounted on the fixed shaft 21 and the pin 9, respectively. At least the fixing member 51 of the end transmission assembly is provided with a mounting through hole 52, which is coaxially arranged with the inner cavity 10. A radial bearing 8 is installed in the mounting through hole 52. The outer ring of the radial bearing 8 is connected to the fixing member 51, and the inner ring of the radial bearing 8 is connected to the fixed shaft 21 or the pin 9. In this embodiment, the fixing member 51 of the middle transmission assembly is also provided with a mounting through hole 52 to improve the versatility of the fixing member 51.

[0054] For example, at least two radial bearings 8 are installed in the mounting through hole 52 to improve the stability and reliability of the rotational installation of the drum housing 1.

[0055] For example, the electric roller also includes a control component 6, which is located within the inner cavity 10. The control component 6 is installed on the side of the roller motor 2 opposite to the reduction gearbox 3. The control component 6 is electrically connected to the roller motor 2 and is used to send control commands to the roller motor 2. It is understood that the control component 6 adopts an existing motor control module, which integrates sensing, decision-making, and execution functions, including functional units such as a main control unit, a signal acquisition unit, a drive unit, and a storage unit. Its specific structure and working principle are existing technologies and will not be described in detail here.

[0056] For example, the electric roller also includes an integrated housing 7, which is a cylindrical structure. The integrated housing 7 is coaxially inserted into the inner cavity 10. The control component 6 and the roller motor 2 are installed inside the integrated housing 7 from the outside to the inside. The first end of the integrated housing 7 is connected to the fixed shaft 21. The output shaft of the roller motor 2 passes through the second end of the integrated housing 7 and connects to the reduction gearbox 3. The housing of the reduction gearbox 3 is connected to the second end of the integrated housing 7. The integrated housing 7 improves the modularity and compactness of the internal structure of the electric roller, which is beneficial to improving production efficiency and reducing maintenance difficulty.

[0057] For example, one end of the fixed shaft 21 extends out of the roller housing 1. The fixed shaft 21 has a plurality of through holes that extend through it along its axial direction. The control component 6 includes a transmission cable 61 for electrical connection with an external power supply and controller. The transmission cable 61 passes through the through holes to extend outside the roller housing 1, thereby connecting with the external power supply and controller.

[0058] For example, one end of the fixed shaft 21 is fixedly connected to the first end of the integrated housing 7 through the shaft assembly 22 fitted thereon. The fixed shaft 21 is also fitted with a floating sleeve 23. Along the axial direction of the fixed shaft 21, the floating sleeve 23 is floatingly connected to the shaft assembly 22 through a spring structure. The fixed shaft 21 is fixedly connected to the mounting base through the floating sleeve 23. The floating sleeve 23 allows the electric roller to float within a small range relative to the mounting base along its own axis, so as to realize the floating installation of the electric roller.

[0059] For example, the roller shell 1 can be made of alloy materials such as stainless steel, aluminum alloy, and carbon steel. The outer surface of the roller shell 1 is provided with an anti-corrosion and wear-resistant layer. The anti-corrosion and wear-resistant layer is formed by surface treatment such as electroplating, spraying, and coating on the outer surface of the roller shell 1 to obtain anti-corrosion and wear-resistant performance and improve appearance texture.

[0060] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An electric roller, characterized in that, include: The roller shell (1) is configured as a cylindrical structure. The roller shell (1) has an inner cavity (10) inside. Both ends of the roller shell (1) are provided with end transmission positions (101), and the middle part of the roller shell (1) is provided with several middle transmission positions (102). A fixed shaft (21) is coaxially inserted through the inner cavity (10), and the roller shell (1) is rotatably connected to the fixed shaft (21). A roller motor (2) is fixedly connected to the fixed shaft (21), and the roller motor (2) is located inside the inner cavity (10); A reduction gearbox (3) is located inside the inner cavity (10). The input end of the reduction gearbox (3) is connected to the output shaft of the drum motor (2). The output end of the reduction gearbox (3) is connected to the drum shell (1) through the transmission sleeve (4). The transmission assembly (5) is installed on multiple transmission components (5), two of the end transmission positions (101) and several of the middle transmission positions (102), and the transmission assembly (5) is used to drive the roller shell (1) and the external actuator.

2. The electric roller according to claim 1, characterized in that, The drum housing (1) includes at least two coaxially connected sub-housing housings (11), the sub-housing housings (11) are configured as cylindrical structures, the end transmission position (101) is formed at the outer end of the sub-housing housing (11) located at the end, and the two adjacent sub-housing housings (11) are spaced apart to form the middle transmission position (102), the drum motor (2) and the reduction gearbox (3) are installed in the same sub-housing housing (11).

3. The electric roller according to claim 2, characterized in that, The transmission assembly (5) includes a fixed member (51) for transmission connection and a transmission member. The transmission member is capable of transmission connection with an external actuator. The fixed member (51) is fixed to the sub-shell (11). At the central transmission position (102), the fixed member (51) is simultaneously connected to the two adjacent sub-shells (11).

4. The electric roller according to claim 3, characterized in that, The transmission assembly (5) includes: Two end drive assemblies are installed one-to-one at the two end drive positions (101) for driving connection between the roller housing (1) and the external actuator; and Several central transmission components are installed one-to-one at several of the central transmission positions (102) for transmitting power between the roller shell (1) and the external execution structure.

5. The electric roller according to claim 4, characterized in that, The mounting through hole (52) is provided on the fixing member (51) of the end transmission assembly. The mounting through hole (52) is coaxially arranged with the inner cavity (10). A radial bearing (8) is installed in the mounting through hole (52). The outer ring of the radial bearing (8) is connected to the fixing member (51), and the inner ring of the radial bearing (8) is connected to the fixed shaft (21) or the pin (9).

6. The electric roller according to claim 3, characterized in that, The fixing component (51) is a sprocket, and the transmission component is a chain.

7. The electric roller according to any one of claims 1-6, characterized in that, The electric roller also includes: The control component (6) is located inside the inner cavity (10). The control component (6) is installed on the side of the roller motor (2) away from the reduction gearbox (3). The control component (6) is electrically connected to the roller motor (2) and is used to send control commands to the roller motor (2).

8. The electric roller according to claim 7, characterized in that, One end of the fixed shaft (21) extends out of the roller shell (1). The fixed shaft (21) has several through holes that extend along its axial direction. The control component (6) includes a transmission cable (61) for electrical connection with an external power supply and a controller. The transmission cable (61) passes through the through holes.

9. The electric roller according to claim 7, characterized in that, The electric roller also includes an integrated housing (7), which is a cylindrical structure. The integrated housing (7) is coaxially inserted into the inner cavity (10). The control component (6) and the roller motor (2) are installed inside the integrated housing (7) from the outside to the inside. The first end of the integrated housing (7) is connected to the fixed shaft (21). The output shaft of the roller motor (2) passes through the second end of the integrated housing (7) and connects to the reduction gearbox (3). The housing of the reduction gearbox (3) is connected to the second end of the integrated housing (7).

10. The electric roller according to any one of claims 1-6, characterized in that, The roller shell (1) is made of alloy material, and the outer surface of the roller shell (1) is provided with an anti-corrosion and wear-resistant layer.

Images