A large roller external independent driving device and method

Abstract

The application relates to the technical field of external power source devices, in particular to a large-roller external independent driving device and method, which comprises a chuck used for connecting the shaft end of a roller, a flange disc coaxially connected to the back of the chuck, a long shaft coaxially connected to the flange disc, a sliding plate with a mounting hole arranged in the middle part and provided with a positioning bearing, the long shaft being arranged in the positioning bearing, two supporting rods used for mounting the sliding plate in a height-adjustable mode, a height positioning assembly used for mounting the sliding plate on the supporting rods and locking the relative position of the sliding plate and the supporting rods so that the positioning bearing and the long shaft are coaxial, a power source, an axial positioning assembly used for relatively fixing the long shaft, the positioning bearing and the power source in the axial direction, and an operator can flexibly adjust the axial position of the sliding plate according to the specific position of a local ridge, and then drives the supporting rods to select the best landing position avoiding interference objects for support, thereby completely solving the problem that a traditional rack cannot be installed due to interference.

Description

Technical Field

[0001] This invention relates to the technical field of external power source devices, specifically to an external independent drive device and method for a large drum. Background Technology

[0002] When performing maintenance work on the large rollers (cylinders, doffers) of carding machines, such as replacing the metal-coated toothed strips, grinding and repairing the outer diameter, or repairing grooves on the sides, the machine has many interconnected components, making it impossible to directly drive the large rollers using the machine's own power source. Therefore, a separate external drive device is required. The industry requirements for such devices are: strong mobility, adaptability to different site environments, convenient operation and speed adjustment, quick and efficient clamping, and the ability to achieve low-speed, high-torque starts.

[0003] Currently, there are two main types of drive methods commonly used in the textile industry: one is the power source device for a metal needle cloth wrapping machine, as described in patent application number CN201120197511.9, which uses a geared motor as the power source and transmits power to the roller shaft end through sprockets, chains, or gears, and uses a support tube or gear connecting plate to fix the distance between the transmitted power; the other is the frame of a power source for a metal needle cloth wrapping machine, as described in patent application number CN201120196874.0, which uses a liftable frame to directly fix the power source with a gearbox on the frame and then directly connect it to the roller shaft end to drive the roller to rotate.

[0004] However, with the continuous advancement of carding machines, most existing equipment now completely encloses the internal components with an outer casing. Although the casing can be removed for the aforementioned maintenance work, the machine frame and base frame (ground beam) are fixed structures and cannot be disassembled. This severely limits the installation of traditional drive systems due to space and interference: sprocket, chain, or gear drives are difficult to install and position in confined spaces; while liftable frame systems are hampered by the base frame, making it difficult to find a suitable installation location, or even secure them at all. These problems not only cause inconvenience and inefficiency but also create safety hazards. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a large external independent drive device and method for a roller drive rotation device that can flexibly adapt to complex site spaces, is easy to install, and does not rely on a fixed base.

[0006] To achieve the above objectives, the present invention provides an external independent drive device for a large roller, comprising: a chuck for connecting the shaft end of the roller; A flange is coaxially connected to the back of the chuck; The long shaft is coaxially connected to the flange; The skateboard has a mounting hole in the middle, and a positioning bearing is installed in the mounting hole. The long shaft passes through the positioning bearing. Two support rods are used to allow the slide plate to be installed in a height-adjustable manner; A height positioning assembly is used to mount the slide plate to the support rod and lock the relative position of the slide plate and the support rod so that the positioning bearing remains coaxial with the long shaft; A power source is connected to the long shaft drive that passes through the positioning bearing; An axial positioning assembly is used to fix the long shaft, the positioning bearing, and the power source relative to each other in the axial direction.

[0007] Preferably, the power source includes a hollow gear reducer and a motor, with the output shaft of the motor being driven to the input end of the hollow gear reducer; the long shaft passes through and is connected to the mounting hole of the hollow gear reducer.

[0008] Preferably, the axial positioning assembly includes a long key fixedly connected axially to the surface of the long shaft and two limiting rings; the inner ring hole wall of the positioning bearing, the inner wall of the mounting hole of the hollow gear reducer, and the inner wall of the limiting rings are all provided with keyways that slide with the long key; a radial fastening screw hole is provided on the outer circumferential surface of the limiting ring, and the axis of the fastening screw hole is perpendicular to the surface of the long key; the two limiting rings are respectively disposed on the sliding plate and the hollow gear reducer on opposite sides.

[0009] Preferably, the height positioning component includes four assembly clamps, which are respectively fixedly connected to the four corners of the slide plate; wherein, two assembly clamps located on the same side of the slide plate are respectively clamped on the upper and lower sides of the same support rod; it also includes a crossbar and two locking clamps fixed to both ends of the crossbar, the crossbar being located below the slide plate, and the locking clamps at both ends of the crossbar are respectively clamped and fixed to the two support rods.

[0010] Preferably, it further includes a quick-release assembly, which includes a mounting plate, a U-shaped frame fixedly connected to both sides of the mounting plate, and two quick clamps symmetrically fixedly connected to the slide plate; the mounting plate has a circular hole in the middle for the long shaft to pass through, and the power source is fixed to the mounting plate.

[0011] Preferably, the mounting plate has two through holes on each side of its surface; both ends of the U-shaped frame are provided with external threads and pass through the two through holes on the same side; the two ends of the U-shaped frame are respectively threaded with nuts and positioning pin sleeves on both sides of the mounting plate in the thickness direction; the slide plate has four positioning pin holes that are coaxially opposite to each of the through holes, and the positioning pin sleeves are plugged into the positioning pin holes; the quick clamp is used to press the mounting plate against the surface of the slide plate.

[0012] Preferably, the quick clamp includes a fixed base, a handle, a movable rod, a connecting rod, and a pressure rod; the fixed base is fixed to the slide plate, the lower end of the handle is pivotally connected to the lower side of the fixed base, the lower end of the movable rod is pivotally connected to the upper end of the fixed base, the two ends of the connecting rod are respectively pivotally connected to the middle of the handle and the movable rod, and the pressure rod is fixedly connected to the end of the connecting rod; the handle can be operated to drive the connecting rod to rotate parallel to the axial direction of the long axis, and to make the movable rod perpendicular to the axial direction of the long axis, at which time the end of the pressure rod is perpendicularly pressed against the surface of the mounting plate.

[0013] This invention also provides a method for externally driven, large drum. S1: A chuck with a flange connected to its back and a long shaft are provided, one end of which is coaxially connected to the flange, and the chuck is clamped and fixed to the shaft end of the roller to be driven. S2: Provide a sliding plate with a mounting hole in the middle and a positioning bearing in the mounting hole, pass the long shaft through the positioning bearing, and fit the sliding plate onto the long shaft; S3: Provide two support rods, use a height positioning component to install the slide plate onto the support rods, and lock the relative position of the slide plate and the support rods so that the positioning bearing remains coaxial with the long shaft; S4: Provide a power source and an axial positioning assembly, wherein the power source is connected to the long shaft passing through the positioning bearing, and the long shaft, the slide plate and the power source are fixed relative to each other in the axial direction by the axial positioning assembly.

[0014] Furthermore, in step S2, when the slide plate is fitted onto the long shaft, the installation position of the subsequent support rod is predicted based on the position of the ground beam of the equipment frame in the site, and the axial position of the slide plate on the long shaft is adjusted accordingly so that the support rod can be deployed around the ground beam. In step S4, the power source includes a hollow gear reducer and a motor. Connecting the power source to the long shaft transmission includes: inserting the long shaft through the mounting hole of the hollow gear reducer and connecting it thereto, and drivingly connecting the output shaft of the motor to the input end of the hollow gear reducer.

[0015] Furthermore, the axial positioning assembly includes a long key fixedly connected axially to the surface of the long shaft and two limiting rings; wherein, In step S2, before the slide plate is fitted onto the long shaft, the first limiting ring is fitted onto the long shaft so that its keyway slides into contact with the long key. Then the slide plate is fitted onto the long shaft, so that one side of the slide plate abuts against or approaches the first limiting ring, and the first limiting ring is locked. In step S4, when connecting the power source to the long shaft drive, the hollow gear reducer is first sleeved on the long shaft and its keyway in the mounting hole is matched with the long key, so that one side of it abuts against the surface of the slide plate. Finally, the second limiting ring is fitted onto the long shaft and its keyway is slidably engaged with the long key, so that it is tightly attached to the other side of the hollow gear reducer away from the positioning bearing, and the second limiting ring is locked.

[0016] This invention provides a large drum external independent drive device and method. It has the following beneficial effects: This invention employs a reverse installation logic, first establishing a reference by connecting the shaft end, and then sliding for positioning and support. A long shaft is first attached to the roller shaft end via a chuck and flange, establishing a rotational reference shaft extending to the outside of the roller, thus establishing a rotation center without relying on an external base. The sliding plate, fitted onto the long shaft, can slide freely axially. Operators can flexibly adjust the axial position of the sliding plate according to the specific location of the ground beam, thereby driving the support rod to select the optimal landing point to avoid interference. This completely solves the problem of traditional frames being unable to be installed due to interference, greatly improving the adaptability of the device to complex sites.

[0017] By combining the quick-release assembly and the axial positioning assembly, boltless and rapid installation of the power source is achieved. The power source can be pre-assembled with the mounting plate and U-shaped frame into a single module. During installation, radial positioning is quickly completed using the guiding engagement of the tapered locating pin sleeve and the locating pin hole. Then, the mounting plate is axially pressed against the slide plate surface by the handle-connecting rod-pressure rod mechanism of the quick-clamping fixture. Finally, only the limiting ring needs to be tightened to complete the axial fixation of the power source. The entire installation process only requires tightening the limiting ring; no on-site bolts are needed between the power source and the mounting plate, significantly simplifying the operation steps and improving assembly efficiency.

[0018] The entire device has a compact structure, and the installation process does not require large hoisting equipment. The deployment of the high-torque drive device can be completed in a confined space with only simple operations, which greatly reduces the difficulty and cost of maintenance. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the exploded structure of the present invention; Figure 3 This is a side view of the structure of the present invention; Figure 4 This is a schematic diagram of one embodiment of the power source in this invention; Figure 5 A schematic diagram of the structure where the long shaft and long key are fitted together; Figure 6 This is a schematic diagram of the quick-release clamp when it is opened. Figure 7 This is a schematic diagram of the quick clamp when it is closed. Figure 8 This is a front view structural diagram of one embodiment of the present invention.

[0020] In the diagram: 10, chuck; 20, flange; 30, long shaft; 40, slide plate; 41, positioning bearing; 50, strut; 60, height positioning assembly; 61, assembly pipe clamp; 70, power source; 71, hollow gear reducer; 72, motor; 80, axial positioning assembly; 81, long key; 82, limit ring; 90, quick release assembly; 91, mounting plate; 911, positioning pin hole; 92, U-shaped frame; 93, quick clamp; 931, fixed base; 932, handle; 933, movable rod; 934, connecting rod; 935, pressure rod; 94, positioning pin sleeve; 11, crossbar; 12, locking pipe clamp. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

[0022] This invention relates to an external independent drive device for a large roller, which mainly solves the problem that when changing the carding cloth and grinding rollers in a textile carding machine, the equipment frame skeleton and bottom frame (ground beam) cannot be removed, resulting in limited installation space and easy interference of traditional drive devices.

[0023] like Figures 1 to 3 As shown, it includes a chuck 10, a flange 20, a long shaft 30, a slide plate 40, a strut 50, a height positioning assembly 60, a power source 70, and an axial positioning assembly 80.

[0024] The core inventive concept of this invention lies in changing the traditional installation logic of "fixing the base first, then connecting the shaft end," and adopting a method of "connecting the shaft end first to establish a reference, then sliding and positioning the support." Specifically, the chuck 10 is used to directly connect to the shaft end of the roller, and a flange 20 is coaxially connected to its back. The two are preferably fixed with bolts to facilitate individual replacement in case of damage. The long shaft 30 is coaxially connected to the flange 20. This connection can be a fixed connection (such as welding) or a detachable connection. In actual use, welding is preferred to ensure connection rigidity and coaxiality. This structure is equivalent to first attaching a cantilevered extended drive shaft to the shaft end of the roller to be driven. At this time, the power transmission path has been extended to the outside of the roller, and the rotation center can be established without relying on an external base.

[0025] A mounting hole is provided in the middle of the slide plate 40, and a positioning bearing 41 is installed in the mounting hole. A keyway is provided on the inner wall of the positioning bearing 41 to slide and engage with a long key 81 on the long shaft 30, ensuring that the slide plate can smoothly pass through the long shaft and transmit torque. The long shaft 30 passes through the positioning bearing 41. Two support rods 50 are provided to support the slide plate 40. A height positioning assembly 60 is used to mount the slide plate 40 to the support rods 50.

[0026] In this invention, the sliding plate 40 is mounted on the long axis 30 and can slide freely along the axial direction. During installation, the operator can flexibly adjust the axial position of the sliding plate 40 on the long axis 30 according to the specific location of the equipment frame and ground beam on site, thereby driving the support rod 50 to move and select the optimal landing point that avoids interference from ground beams and other objects for support. This installation method greatly improves the adaptability of the device to complex sites and completely solves the problem of traditional frames being unable to be installed due to interference.

[0027] Furthermore, an adjustable foot plate is provided at the bottom of the support rod 50. This adjustable foot plate not only supports the ground to bear the axial reaction force generated when the roller rotates, but also has a height fine-tuning function. After the slide plate 40 is locked by the height positioning component 60, the operator can make slight adjustments to the height of the support rod 50 by turning the adjustable foot plate, thereby correcting the levelness of the slide plate 40, ensuring the precise coaxiality of the long shaft 30 and the positioning bearing 41, and improving transmission stability.

[0028] In one embodiment of the present invention, the height positioning assembly 60 includes four mounting clamps 61. The four mounting clamps 61 are respectively fixedly connected to the four corners of the slide plate 40. Among them, two mounting clamps 61 located on the same side of the slide plate 40 are respectively clamped to the upper and lower sides of the same support rod 50. The mounting clamp 61 consists of a clamp seat, a clamp cover, and a locking bolt.

[0029] During assembly, once the slide plate 40 has moved to the predetermined position on the long axis 30, avoiding interference points, the support rod 50 is inserted into the pipe clamp seat. The height of the support rod 50 is adjusted so that the adjusting foot plate contacts the ground and bears weight. Then, the pipe clamp cover is closed and the locking bolts are tightened. This structure allows the support rod 50 to be quickly coarsely adjusted and locked in height and angle. Combined with the fine-tuning function of the adjusting foot plate, it can quickly adapt to the support needs of ground with different height differences.

[0030] Furthermore, as one embodiment of the present invention, please refer to... Figure 8 The assembly also includes a crossbar 11 and two locking clamps 12 fixed to both ends of the crossbar 11. The crossbar 11 is located below the slide plate 40, and the locking clamps 12 at both ends of the crossbar 11 are respectively clamped and fixed to the two support rods 50. The specific structure of the locking clamps 12 is the same as that of the assembly clamps 61, both consisting of clamp seats, clamp covers and locking bolts. In use, after the slide plate 40 is assembled, the crossbar 11 is placed horizontally below the slide plate 40, and the locking clamps 12 at both ends of the crossbar 11 are respectively clamped to the two support rods 50, thereby ensuring that the support rods 50 are vertical, and that the lower part of the two support rods 50 will not spread out into a V-shape due to force, and also ensuring that the slide plate 40 remains horizontal and stable, improving the connection accuracy during assembly and use.

[0031] Furthermore, circumferential synchronous transmission is required between the long shaft 30 and the power source 70 to transmit torque, which can be achieved using keyed connections, splined connections, or pin connections. This embodiment preferably uses a keyed connection, balancing transmission reliability and ease of assembly and disassembly. Specifically, as shown... Figure 5 As shown, a long key 81 is fixed axially on the surface of the long shaft 30. Corresponding keyways are provided in the inner walls of the mounting holes of various mating components, such as the limiting ring 82, the positioning bearing 41, and the hollow gear reducer 71. This structure allows the sliding plate 40 and the components of the power source 70 to slide and adjust their positions axially, while ensuring the transmission of large torque in the circumferential direction. The long key 81 not only transmits torque but also serves as an axial positioning reference for the powertrain on the long shaft. By pressing the surface of the long key with the radial fastening screw holes of the limiting ring 82, each component can be locked in any desired position on the long shaft.

[0032] The power source 70 includes a hollow gear reducer 71 and a motor 72. The output shaft of the motor 72 is connected to the input end of the hollow gear reducer 71. The hollow gear reducer 71 has a hole-output structure, and its mounting hole has a keyway on its inner wall for mates with a long key 81 to transmit torque. The long shaft 30 passes through and is connected to the mounting hole of the hollow gear reducer 71. By using the hollow gear reducer 71, the long shaft 30 can be directly passed through its central hole, resulting in a compact structure. Furthermore, by utilizing its high-ratio reduction gear, it can output low-speed, high-torque output, meeting the requirement for smooth starting of large-diameter drums.

[0033] To enable quick installation and removal of the power source, the device also includes a quick-release assembly 90. (See also...) Figure 2 , 4 The quick-release assembly 90 includes a mounting plate 91, U-shaped frames 92 fixedly connected to both sides of the mounting plate 91, and two quick clamps 93 symmetrically fixedly connected to the slide plate 40. A circular hole for the long shaft 30 to pass through is provided in the center of the mounting plate 91, and the power source 70 is fixed to the mounting plate 91. The U-shaped frames 92 arch upwards on both sides of the mounting plate 91, serving both as manual handles for transporting the power source assembly and as a protective frame surrounding the hollow gear reducer 71.

[0034] The mounting plate 91 is provided with a locating pin sleeve 94, and the sliding plate 40 is provided with a locating pin hole 911. Specifically, two through holes are opened on each side of the surface of the mounting plate 91; both ends of the U-shaped frame 92 are provided with external threads and pass through the two through holes on the same side; nuts and locating pin sleeves 94 are threaded to both ends of the U-shaped frame 92 in the thickness direction of the mounting plate 91, respectively. Thus, the locating pin sleeves 94 and nuts cooperate to lock and fix the U-shaped frame 92 to the mounting plate 91 from both sides, and also extend downward as a positioning structure. Preferably, the extended end of the locating pin sleeve 94 is tapered, and four locating pin holes 911 are opened on the sliding plate 40, which are coaxially opposite to each through hole. During installation, the tapered end of the locating pin sleeve 94 is used to guide the engagement with the locating pin holes 911, and then the quick clamp 93 is operated to press the mounting plate 91.

[0035] Specifically, please refer to Figure 6 , 7The quick-release clamp 93 includes a fixed base 931, a handle 932, a movable rod 933, a connecting rod 934, and a pressure rod 935. The fixed base 931 is fixed to the slide plate 40. The lower end of the handle 932 is pivotally connected to the lower side of the fixed base 931. The lower end of the movable rod 933 is pivotally connected to the upper end of the fixed base 931. The two ends of the connecting rod 934 are pivotally connected to the middle of the handle 932 and the movable rod 933, respectively. The pressure rod 935 is fixedly connected to the end of the connecting rod 934. The handle 932 can be operated to rotate the connecting rod 934 to be parallel to the axial direction of the long axis 30, and to make the movable rod 933 perpendicular to the axial direction of the long axis 30. At this time, the end of the pressure rod 935 is vertically pressed against the surface of the mounting plate 91. This quick-release assembly 90 cooperates with the axial positioning assembly 80 to realize the boltless quick installation of the power source 70: the power source 70 can be pre-assembled with the mounting plate 91 and the U-shaped frame 92 into an integral module. During installation, first insert the locating pin sleeve 94 into the locating pin hole 911 on the slide plate 40 to complete radial positioning. Then, turn the handle 932, which drives the pressure rod 935 via the connecting rod 934 to press the mounting plate 91 axially against the surface of the slide plate 40. Finally, fit the second limiting ring 82 onto the long shaft 30 and lock it in place to complete the axial fixation of the power source 70. The entire installation process only requires locking the limiting ring 82; no on-site bolts are needed between the power source 70 and the mounting plate 91, significantly simplifying the operation and improving assembly efficiency. The entire process requires no additional tools, enabling rapid locking of the power source assembly and support assembly, significantly improving work efficiency.

[0036] In this embodiment, the axial positioning assembly 80 includes a long key 81 and two limiting rings 82. The inner ring wall of the positioning bearing 41, the inner wall of the mounting hole of the hollow gear reducer 71, and the inner wall of the limiting rings 82 are all provided with keyways that slide with the long key 81. Radial fastening screw holes are provided on the outer circumferential surface of the limiting rings 82, with the axis of the fastening screw holes perpendicular to the surface of the long key 81. The two limiting rings 82 are respectively located on opposite sides of the slide plate 40 and the hollow gear reducer 71: the first limiting ring 82 is located on the side of the slide plate 40 closer to the chuck 10 (closer to the roller side), used to limit the axial movement of the entire assembly towards the roller; the second limiting ring 82 is located on the other side of the hollow gear reducer 71 away from the positioning bearing 41 (away from the roller side), used to axially lock the power source 70 from the rear end. By tightening the two locking rings to compress the long key 81, the long shaft 30, the slide plate 40 and the power source 70 are connected into a rigid whole. Together with the ground support rod 50 and the adjusting foot plate, a stable cantilever beam support structure is formed, which effectively resists the reaction force when the roller rotates.

[0037] This embodiment provides a method for externally driven independent operation of a large drum. This method is implemented based on the device described in the above embodiment and includes the following steps: Step S1: Provide a chuck 10 with a flange 20 connected to its back and a long shaft 30. One end of the long shaft 30 is coaxially connected to the flange 20. Clamp and fix the chuck 10 to the shaft end of the roller to be driven. This step establishes an extended rotational reference axis at the roller shaft end.

[0038] Step S2: Provide a sliding plate 40 with a mounting hole in the middle and a positioning bearing 41 installed in the mounting hole. First, fit the first limiting ring 82 onto the long shaft 30, so that its keyway slides with the long key 81. Then, pass the long shaft 30 through the positioning bearing 41, so that the sliding plate 40 is fitted onto the long shaft 30, and one side of the sliding plate 40 abuts against or approaches the first limiting ring 82. Based on the position of the ground beam of the equipment frame in the site, predict the interference area, push the sliding plate 40 to slide along the long shaft 30, and adjust its axial position so that the subsequent installation of the support rod 50 can avoid interference objects such as the ground beam.

[0039] Step S3: Provide two support rods 50, and use the height positioning component 60 to install the slide plate 40 onto the support rods 50. First, insert the support rod 50 into the assembly tube clamp 61, adjust the height of the support rod so that its bottom end touches the ground and provides stable support, while ensuring that the long shaft 30 is horizontal and the positioning bearing 41 is coaxial with the long shaft 30; then tighten the assembly tube clamp 61 and tighten the first limit ring 82 to complete the fixation of the support component.

[0040] Step S4: Provide the power source 70. First, mount the hollow gear reducer 71 onto the long shaft 30, ensuring the keyway in its mounting hole mates with the long key 81, so that one side abuts against the surface of the slide plate 40. Quickly position and lock the mounting plate 91 and the slide plate 40 using the quick-release assembly 90. Finally, insert the second limiting ring 82 onto the long shaft 30, ensuring it is flush against the side of the hollow gear reducer 71 away from the positioning bearing 41, and lock the second limiting ring 82 to complete the installation. The entire process requires no large lifting equipment and only simple operation to deploy the high-torque drive device within a confined space.

[0041] It should be noted that although the preceding text mainly focuses on the maintenance of large rollers (cylinders, doffers) in carding machines, the application scope of this invention is not limited to this. The drive device and method provided by this invention are essentially an externally independent drive solution that can be quickly deployed and flexibly adapted to on-site space constraints. It is applicable to any situation requiring the independent driving of large-diameter rollers, shafts, or other rotating components for low-speed rotation—such as roller maintenance in other textile equipment, overhaul of large rotating parts in general machinery, and even any industrial scenario requiring temporary external power to the rotating body. Its installation logic of "first connecting the shaft end to establish a reference, then sliding for positioning and support," along with the boltless, quick-locking structure of the power source, makes the device highly adaptable to rotating components of any size and shape, requiring only the adaptation of the chuck according to the shaft end size. Therefore, the scope of protection of this invention should not be construed as limited to carding machines, but should cover all application scenarios requiring independent driving of rotating components.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A large drum external independent drive device, characterized in that, include: A chuck is used to connect the shaft end of a roller; A flange is coaxially connected to the back of the chuck; The long shaft is coaxially connected to the flange; The skateboard has a mounting hole in the middle, and a positioning bearing is installed in the mounting hole. The long shaft passes through the positioning bearing. Two support rods are used to allow the slide plate to be installed in a height-adjustable manner; A height positioning assembly is used to mount the slide plate to the support rod and lock the relative position of the slide plate and the support rod so that the positioning bearing remains coaxial with the long shaft; A power source is connected to the long shaft drive that passes through the positioning bearing; An axial positioning assembly is used to fix the long shaft, the positioning bearing, and the power source relative to each other in the axial direction.

2. The external independent drive device for a large drum as described in claim 1, characterized in that: The power source includes a hollow gear reducer and a motor. The output shaft of the motor is driven to the input end of the hollow gear reducer. The long shaft passes through the mounting hole of the hollow gear reducer and is connected to it.

3. The external independent drive device for a large drum as described in claim 2, characterized in that: The axial positioning assembly includes a long key fixedly connected axially to the surface of the long shaft and two limiting rings; the inner ring hole wall of the positioning bearing, the inner wall of the mounting hole of the hollow gear reducer, and the inner wall of the limiting rings are all provided with keyways that slide with the long key; the outer circumferential surface of the limiting rings is provided with radial fastening screw holes, the axis of which is perpendicular to the surface of the long key; the two limiting rings are respectively disposed on the sliding plate and the hollow gear reducer on opposite sides.

4. The external independent drive device for a large drum as described in claim 1, characterized in that: The height positioning component includes four assembly tube clamps, which are respectively fixedly connected to the four corners of the slide plate; wherein, two assembly tube clamps located on the same side of the slide plate are respectively clamped on the upper and lower sides of the same support rod; it also includes a crossbar and two locking tube clamps fixed to both ends of the crossbar, the crossbar is located below the slide plate, and the locking tube clamps at both ends of the crossbar are respectively clamped and fixed to the two support rods.

5. The external independent drive device for a large drum as described in claim 1, characterized in that: It also includes a quick-release assembly, which includes a mounting plate, a U-shaped frame fixedly connected to both sides of the mounting plate, and two quick clamps symmetrically fixedly connected to the slide plate; the mounting plate has a circular hole in the middle for the long shaft to pass through, and the power source is fixed to the mounting plate.

6. The external independent drive device for a large drum as described in claim 5, characterized in that: Two through holes are provided on each side of the surface of the mounting plate; both ends of the U-shaped frame are provided with external threads and pass through the two through holes on the same side respectively; nuts and positioning pin sleeves are threaded to both ends of the U-shaped frame on both sides of the mounting plate in the thickness direction respectively; four positioning pin holes are provided on the slide plate, which are coaxially opposite to each of the through holes respectively, and the positioning pin sleeves are plugged into the positioning pin holes; the quick clamp is used to press the mounting plate against the surface of the slide plate.

7. The external independent drive device for a large drum as described in claim 6, characterized in that: The quick clamp includes a fixed base, a handle, a movable rod, a connecting rod, and a pressure rod. The fixed base is fixed to the slide plate. The lower end of the handle is pivotally connected to the lower side of the fixed base. The lower end of the movable rod is pivotally connected to the upper end of the fixed base. The two ends of the connecting rod are pivotally connected to the middle of the handle and the movable rod, respectively. The pressure rod is fixedly connected to the end of the connecting rod. The handle can be operated to rotate the connecting rod to be parallel to the axial direction of the long axis and to make the movable rod perpendicular to the axial direction of the long axis. At this time, the end of the pressure rod is perpendicularly pressed against the surface of the mounting plate.

8. A method for externally driven independent operation of a large drum, characterized in that, Includes the following steps: S1: A chuck with a flange connected to its back and a long shaft are provided, one end of which is coaxially connected to the flange, and the chuck is clamped and fixed to the shaft end of the roller to be driven. S2: Provide a sliding plate with a mounting hole in the middle and a positioning bearing in the mounting hole, pass the long shaft through the positioning bearing, and fit the sliding plate onto the long shaft; S3: Provide two support rods, use a height positioning component to install the slide plate onto the support rods, and lock the relative position of the slide plate and the support rods so that the positioning bearing remains coaxial with the long shaft; S4: Provide a power source and an axial positioning assembly, wherein the power source is connected to the long shaft passing through the positioning bearing, and the long shaft, the slide plate and the power source are fixed relative to each other in the axial direction by the axial positioning assembly.

9. A method for externally driven independent operation of a large drum according to claim 8, characterized in that: In step S2, when the slide plate is fitted onto the long shaft, the installation position of the subsequent support rod is predicted according to the position of the ground beam of the equipment frame in the site, and the axial position of the slide plate on the long shaft is adjusted accordingly so that the support rod can be deployed around the ground beam. In step S4, the power source includes a hollow gear reducer and a motor. Connecting the power source to the long shaft transmission includes: inserting the long shaft through the mounting hole of the hollow gear reducer and connecting it thereto, and drivingly connecting the output shaft of the motor to the input end of the hollow gear reducer.

10. A method for externally driven independent operation of a large drum according to claim 9, characterized in that, The axial positioning assembly includes a long key and two limiting rings that are fixedly connected axially to the surface of the long shaft; wherein... In step S2, before the slide plate is fitted onto the long shaft, the first limiting ring is fitted onto the long shaft so that its keyway slides into contact with the long key. Then the slide plate is fitted onto the long shaft, so that one side of the slide plate abuts against or approaches the first limiting ring, and the first limiting ring is locked. In step S4, when connecting the power source to the long shaft drive, the hollow gear reducer is first sleeved on the long shaft and its keyway in the mounting hole is matched with the long key, so that one side of it abuts against the surface of the slide plate. Finally, the second limiting ring is fitted onto the long shaft and its keyway slides with the long key, so that it is close to the other side of the hollow gear reducer away from the positioning bearing, and the second limiting ring is locked.

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