Pipe surface polishing device

Abstract

The embodiments of the present invention relate to the technical field of pipe polishing, and provide a pipe surface polishing device for polishing the pipe surface, comprising: a moving member, the moving member being located outside the pipe and movable relative to the pipe; a ring body, the ring body being arranged on the moving member, and the pipe being used to pass through the ring body, the ring body having a plurality of radial grooves; a brush shaft, the brush shaft being rotated and slidably arranged in the radial grooves; a polishing brush, the polishing brush being arranged on the brush shaft; a pushing member, the pushing member being slidably arranged on the moving member along the axial direction of the pipe, and having a plurality of circumferentially arranged pushing bevels, the pushing member being configured such that after sliding, the pushing bevels push the brush shaft along the radial grooves toward the pipe; and a first elastic member, the first elastic member being used to provide a force to move the brush shaft away from the pipe. The above technical solution solves the technical problem that the pipe polishing device in the prior art cannot meet the requirements for polishing longer pipes.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of pipe polishing, and in particular, to a pipe surface polishing device. Background Art

[0002] In the manufacturing field, the surface quality of pipes has a significant impact on their performance and service life, making pipe polishing a critical process in pipe processing. Currently, most existing pipe polishing devices on the market use fixed structures, resulting in a relatively large overall size and high requirements in terms of operating space and equipment installation site.

[0003] These conventional pipe polishing devices are effective for polishing pipes of average length. However, when it comes to longer pipes, they struggle to perform comprehensive and effective polishing due to structural and dimensional limitations. Firstly, the bulk of the equipment makes it difficult to smoothly transport and position the extra-long pipes within the polishing device, hindering the polishing process. Secondly, existing polishing devices lack a design specifically tailored to the needs of extra-long pipes, making them inadequate for the polishing process. Summary of the Invention

[0004] To overcome the above-mentioned defects, an embodiment of the present invention provides a pipe surface polishing device, which solves the technical problem that the pipe polishing device in the prior art cannot meet the requirements of polishing longer pipes.

[0005] According to one aspect, at least one embodiment of the present invention provides a pipe surface polishing device for polishing a pipe surface, comprising:

[0006] A moving member, the moving member is located outside the pipe, is arranged to move relative to the pipe, and has a moving direction parallel to the axial direction of the pipe, and is used to move relative to the pipe;

[0007] a ring body, the ring body being arranged on the moving member, the pipe being used to pass through the ring body, the ring body having a plurality of radial grooves;

[0008] a brush shaft, the brush shaft being rotatably and slidably disposed in the radial groove;

[0009] Polishing brushes, each of which is arranged on the brush shaft, and a plurality of the polishing brushes are used to polish the surface of the pipe;

[0010] a pusher, the pusher being slidably disposed on the moving member along the axial direction of the tube and having a plurality of circumferentially arranged pusher slopes, wherein after the pusher slides, the pusher slopes push the brush shaft to move along the radial groove toward the direction of the tube;

[0011] A first elastic member is used to provide a force for the brush shaft to move away from the tube.

[0012] For example, at least one embodiment of the present invention provides a pipe surface polishing device, further comprising:

[0013] A spacer is slidably arranged in the radial groove and is located between the first elastic member and the brush shaft. The brush shaft is rotatably arranged relative to the spacer. The first elastic member acts on the spacer, so that the spacer pushes the brush shaft to slide.

[0014] For example, in at least one embodiment of the present invention, a pipe surface polishing device is provided, wherein the brush shaft has a pushed inclined surface at one end away from the polishing brush, and the pushed inclined surface abuts against the pushing inclined surface.

[0015] For example, at least one embodiment of the present invention provides a pipe surface polishing device, further comprising:

[0016] a driving ring, the driving ring being rotatably disposed on the moving member, the driving ring having a first inner gear ring;

[0017] a swinging member, the swinging member being swingably disposed on the ring body;

[0018] a transmission gear, the transmission gear being arranged on the brush shaft;

[0019] A first idle gear and a second idle gear, the first idle gear and the second idle gear are both rotatably arranged on the swing member, the first idle gear is engaged with the second idle gear, the first idle gear is engaged with the first inner ring gear, and the second idle gear is engaged with the transmission gear.

[0020] For example, in at least one embodiment of the present invention, a pipe surface polishing device is provided, wherein the swing axis of the swing member is coaxial with the swing axis of the first idle gear, and further comprises:

[0021] A second elastic member, one end of the second elastic member acts on the swing member, and the other end acts on the ring body, providing a force for the swing member to swing so that the second idle gear and the transmission gear remain in meshing.

[0022] For example, at least one embodiment of the present invention provides a pipe surface polishing device, further comprising:

[0023] A first driving gear is rotatably disposed on the ring body and is engaged with the first inner gear ring to drive the driving ring to rotate.

[0024] For example, at least one embodiment of the present invention provides a pipe surface polishing device, wherein the ring body is rotatably disposed on the moving member, has a second outer gear ring, and further includes:

[0025] A second driving gear is rotatably disposed on the moving member and is engaged with the second outer gear ring for driving the ring body to rotate.

[0026] For example, at least one embodiment of the present invention provides a pipe surface polishing device, which further includes a walking mechanism, wherein the walking mechanism is used to walk outside the pipe, and the moving part is arranged on the walking mechanism.

[0027] For example, in at least one embodiment of the present invention, a pipe surface polishing device is provided, wherein the traveling mechanism includes:

[0028] An annular frame, the annular frame is located outside the pipe;

[0029] Sliding legs, the sliding legs are radially slidably arranged on the annular frame and are arranged in a plurality of circles;

[0030] Traveling wheels, which are arranged on the sliding legs and are used to travel on the outer wall of the pipe;

[0031] A third elastic member, one end of which acts on the sliding leg and the other end acts on the annular frame, provides a force for the walking wheel to abut against the outer wall of the pipe.

[0032] For example, in at least one embodiment of the present invention, a pipe surface polishing device is provided, wherein the sliding legs are arranged in two circles.

[0033] The beneficial effects of the embodiments of the present invention are:

[0034] In the present invention, a movable member moves axially along the pipe, enabling the device to adapt to the polishing needs of pipes of varying lengths. This eliminates the need for pipe transport within the device, reducing requirements for operating space and equipment installation sites. The radial grooves provided on the ring body, in conjunction with the brush shaft and polishing brush, enable circumferential polishing of the pipe surface. The synergistic action of the pusher and the first elastic member allows for adaptability to pipes of varying diameters. The contact pressure between the polishing brush and the pipe surface can be flexibly adjusted based on the pipe's varying outer diameters, ensuring a consistent polishing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments of the present invention. Obviously, the drawings described below are merely exemplary embodiments of the present invention. Those skilled in the art can, without inventive effort, derive other drawings based on the contents of the exemplary embodiments of the present invention and these drawings.

[0036] Figure 1A schematic diagram of the external structure of a pipe surface polishing device according to one embodiment of the present invention;

[0037] Figure 2 for Figure 1 A schematic top view of the structure of the pipe surface polishing device in an embodiment of the present invention;

[0038] Figure 3 for Figure 2 AA cross-sectional structural diagram;

[0039] Figure 4 for Figure 3 Middle D is a schematic diagram of the partially enlarged structure;

[0040] Figure 5 for Figure 2 Schematic diagram of the cross-sectional structure of the middle BB;

[0041] Figure 6 for Figure 2 Schematic diagram of the cross-sectional structure of the CC;

[0042] In the figure: moving member 100, ring body 200, radial groove 201, second outer ring gear 202, brush shaft 300, pushed inclined surface 301, polishing brush 400, pushing member 500, pushing inclined surface 501, first elastic member 600, spacer 700, drive ring 800, first inner ring gear 801, swinging member 900, transmission gear 1000, first idler gear 1100, second idler gear 1200, second elastic member 1300, first drive gear 1400, second drive gear 1500, walking mechanism 1600, annular frame 1601, sliding leg 1602, walking wheel 1603, third elastic member 1604. DETAILED DESCRIPTION

[0043] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention.

[0044] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0045] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0046] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0047] In the description of this embodiment, the terms "up", "down", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0048] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0049] like Figures 1 to 6 As shown, it shows a pipe surface polishing device in one embodiment of the present invention, which is used for polishing the pipe surface. The movable member 100 is moved axially along the pipe, so that the device can adapt to the polishing needs of pipes of different lengths. There is no need to transport the pipe inside the device, which reduces the requirements for operating space and equipment installation site. The radial groove 201 provided on the ring body 200 cooperates with the brush shaft 300 and the polishing brush 400 to polish the pipe surface in the circumferential direction. The synergistic effect of the pusher 500 and the first elastic member 600 can adapt to pipes of different diameters, and flexibly adjust the contact pressure between the polishing brush 400 and the pipe surface according to the different outer diameters of the pipe to ensure the consistency of the polishing effect.

[0050] The movable member 100 is designed as a frame structure. To achieve movement of the movable member 100 relative to the pipe, either an electric drive or a hydraulic drive can be employed. For example, an electric motor is mounted on the movable member 100, and power is transmitted to the movable wheels via a chain or gear transmission mechanism, achieving smooth movement of the movable member 100. The motor is equipped with a speed regulator, which can adjust the moving speed of the movable member 100 based on factors such as the pipe material and polishing requirements.

[0051] The inner diameter of the ring body 200 is larger than the outer diameter of the largest pipe to be polished to ensure smooth passage. Radial grooves 201 are evenly distributed around the circumference of the ring body 200. Their number is determined by the pipe diameter and polishing requirements. The length of the radial grooves 201 is determined by the travel and installation requirements of the brush shaft 300, ensuring that the brush shaft 300 can slide flexibly within the grooves without excessive shaking.

[0052] The ring body 200 is fixed to the moving part 100 by bolts or welding to ensure a firm installation and prevent displacement during the polishing process.

[0053] One end of the brush shaft 300 is processed with an external thread for connecting with the polishing brush 400 , and the other end is processed with a flat surface adapted to the pushing inclined surface 501 so that the pushing member 500 can effectively push the brush shaft 300 . The brush shaft 300 is installed in the radial groove 201 .

[0054] The polishing brush 400 consists of bristles and a brush holder. The bristles are made of wear-resistant nylon or steel wire, with varying hardness and length depending on the pipe material and polishing requirements. Steel wire bristles can be used for harder metal pipes, while nylon bristles can be used for softer plastic pipes. The brush holder, made of plastic or metal, is threaded onto the brush shaft 300 for secure installation. Multiple mounting holes are provided on the brush holder for securing the bristles, ensuring even distribution and consistent polishing results.

[0055] To facilitate replacement of worn polishing brushes 400, the threaded connection between the brush holder and brush shaft 300 is designed with a quick-release mechanism, such as a thumb nut or quick-release connector. When the polishing brush 400 becomes worn to a certain extent, simply loosen the thumb nut or remove the quick-release connector to quickly replace it with a new one, improving equipment maintenance efficiency.

[0056] The pusher 500 is annular in structure, with inclined surfaces 501 evenly distributed around its circumference. Their number matches the radial grooves 201, and their positions correspond one-to-one. The angle of the inclined surfaces 501 is designed based on the required pushing force and the travel distance of the brush shaft 300. Guide grooves are provided on the inner circumference of the pusher 500, which interact with guide blocks on the moving member 100 to ensure accurate axial sliding of the pusher 500 along the tubing.

[0057] The pusher 500 can be driven axially along the pipe by manual or electric means. For example, with manual drive, a handle is mounted on the pusher 500. The operator rotates the handle, which drives a screw, which engages a nut on the pusher 500 to achieve axial movement of the pusher 500. With electric drive, a small motor mounted on the movable member 100 drives the screw through a belt or chain drive mechanism, achieving automatic movement of the pusher 500.

[0058] The first elastic member 600 is a compression spring. The spring must ensure that it can provide sufficient force to keep the brush shaft 300 away from the pipe when it is not pushed by the pushing member 500. At the same time, when the pushing member 500 pushes the brush shaft 300, it can produce appropriate elastic deformation to maintain appropriate contact pressure between the polishing brush 400 and the surface of the pipe.

[0059] Place the pipe to be polished on a suitable support device, such as a V-block or roller rack, ensuring that the central axis of the pipe is parallel to the direction of movement of the moving member 100. Adjust the position of the pusher 500 based on the outer diameter of the pipe to maintain an appropriate initial distance between the polishing brush 400 and the pipe surface. Move the pusher 500 axially, pushing the inclined surface 501 to push the brush shaft 300 along the radial groove 201 toward the pipe until the polishing brush 400 lightly contacts the pipe surface.

[0060] The driving device of the moving member 100 is activated to slowly move the moving member 100 along the axial direction of the pipe, and the rotation driving device of the polishing brush 400 is activated to rotate the polishing brush 400 at high speed. During the movement of the moving member 100, the polishing brush 400 polishes the surface of the pipe in the circumferential direction. As the moving member 100 moves, the entire surface of the pipe is polished.

[0061] During the polishing process, the contact pressure between the polishing brush 400 and the surface of the pipe may change due to the unevenness or uneven material of the pipe. At this time, the first elastic member 600 can automatically adjust the contact position between the polishing brush 400 and the surface of the pipe according to the pressure change to ensure the consistency of the polishing effect. The operator monitors the polishing process in real time by observing the wear of the polishing brush 400, the polishing quality of the pipe surface and the operating status of the movable member 100. If the polishing brush 400 is found to be severely worn, the polishing brush 400 should be replaced in time; if the polishing of the pipe surface is found to be uneven, the moving speed of the movable member 100 or the rotation speed of the polishing brush 400 can be appropriately adjusted to improve the polishing effect. At the same time, the debris and polishing liquid generated during the polishing process should be cleaned regularly to prevent them from affecting the polishing quality and the normal operation of the equipment.

[0062] When the pipe surface is polished, the rotation drive of the polishing brush 400 is stopped first, and then the drive of the moving member 100 is stopped. The pushing member 500 is moved in the opposite direction so that the polishing brush 400 is moved away from the pipe surface under the action of the first elastic member 600.

[0063] The design of the movable part 100 enables the device to move along the axial direction of the pipe without the need for complex transmission of the pipe inside the device, which effectively solves the problem of polishing extra-long pipes. Compared with traditional fixed-structure polishing devices, it has improved adaptability to pipes of different lengths and can meet the polishing needs of more types and specifications of pipes.

[0064] The synergistic action of the pusher 500 and the first elastic member 600 automatically adjusts the contact pressure between the polishing brush 400 and the pipe surface according to the outer diameter and surface condition of the pipe, resulting in a more uniform polishing effect. This improves the stability of the polishing quality and reduces surface defects caused by uneven polishing.

[0065] The device adopts a design of movable parts 100, which makes the overall structure relatively flexible and compact, significantly reducing the requirements for operating space and equipment installation site. Compared with traditional large fixed structure polishing devices, the required installation space is reduced, improving the applicability and installability of the equipment.

[0066] In some examples, a spacer 700 is added to optimize the interaction between the brush shaft 300 and the first elastic member 600, thereby improving the overall performance and polishing effect of the device. In one implementation, the first elastic member 600 acts directly on the brush shaft 300. Due to the complex movement of the brush shaft 300 in the radial groove 201, the elastic member may be unevenly stressed, affecting its service life and the stability of the pushing effect on the brush shaft 300. By adding the spacer 700, the force of the first elastic member 600 can be more evenly transmitted to the brush shaft 300, while allowing the brush shaft 300 to rotate relative to the spacer 700, avoiding the friction between the two affecting the normal rotation of the brush shaft 300, ensuring that the polishing brush 400 can polish the pipe in a more stable state, and improving the consistency of the polishing quality and the reliability of the equipment.

[0067] A circular through-hole is machined in the center of the spacer 700 to provide rotational space for the brush shaft 300. An annular groove is provided on the inner wall of the through-hole for mounting a rolling bearing or anti-friction bushing to reduce friction between the brush shaft 300 and the spacer 700, ensuring that the brush shaft 300 can rotate flexibly relative to the spacer 700.

[0068] The spacer 700 makes the force exerted by the first elastic member 600 on the brush shaft 300 more uniform and stable. Compared with the design without spacers, the contact pressure fluctuation between the polishing brush 400 and the pipe surface is reduced, which effectively reduces the uneven polishing caused by unstable pressure and improves the stability of the polishing quality.

[0069] The self-lubricating material properties of the spacer 700 and the optimization of the rotation of the brush shaft 300 reduce the friction between the brush shaft 300 and the radial groove 201 and between the brush shaft 300 and the first elastic member 600, thereby extending the service life of the brush shaft 300 and the first elastic member 600 compared to traditional designs, reducing the maintenance cost and downtime of the equipment.

[0070] By optimizing the interaction between the brush shaft 300 and the first elastic member 600, the probability of failure due to mutual influence between components is reduced, the reliability of the equipment is improved compared to traditional designs, and the smooth progress of pipe polishing is ensured.

[0071] In some examples, a pushed bevel 301 is provided at the end of the brush shaft 300 away from the polishing brush 400, and is abutted against the pushing bevel 501, thereby optimizing the way in which the pushing member 500 pushes the brush shaft 300 and improving the polishing performance and stability of the device. By coordinating the pushing bevel 501 with the pushed bevel 301, the pushing member 500 can more effectively transfer force to the brush shaft 300 when moving axially, prompting the brush shaft 300 to move along the radial groove 201 toward the direction of the pipe. This method of abutting the bevels reduces stress concentration during the pushing process, making the brush shaft 300 more evenly stressed, thereby ensuring that the polishing force applied to the pipe surface by multiple polishing brushes 400 is more balanced, thereby improving the consistency and quality of the polishing of the pipe surface.

[0072] The well-matched pusher bevel 301 and pusher bevel 501 ensure a more uniform thrust from the pusher 500 on the brush shaft 300. This improves the consistency of the polishing force applied by the multiple polishing brushes 400 to the pipe surface, effectively reducing variations in polishing quality due to uneven polishing force and improving overall polishing quality. This reduces stress concentration and abnormal wear between components during the pushing process, improving operational stability, reducing downtime due to component failure, and increasing production efficiency.

[0073] In some examples, a drive ring 800, an oscillating member 900, a transmission gear 1000, a first idler gear 1100, and a second idler gear 1200 are designed to achieve a more flexible and efficient rotation drive mode for the polishing brush 400, further improving the polishing effect of the pipe surface to adapt to the problems of different pipe diameters and polishing requirements. The drive ring 800 is rotatably set on the moving member 100, and its first inner ring gear 801 is engaged with the first idler gear 1100, and then the second idler gear 1200 is engaged with the transmission gear 1000 on the brush shaft 300 to form a multi-stage transmission structure. The setting of the oscillating member 900 enables the entire transmission structure to adapt to the changes in the position of the brush shaft 300 in the radial groove 201, ensuring that under different pipe diameters, the transmission system can stably transmit the power of the drive ring 800 to the brush shaft 300, ensuring the stable rotation of the polishing brush 400, thereby improving the uniformity and efficiency of polishing.

[0074] The inner diameter of the driving ring 800 is larger than the outer diameter of the ring body 200 , and the first inner gear ring 801 is disposed on the inner circumferential surface of the driving ring 800 .

[0075] The swing member 900 is designed as a plate-like structure and is made of high-strength aluminum alloy to reduce weight while ensuring structural strength. The length and width of the swing member 900 are determined according to the installation dimensions and swing range of the first idle gear 1100 and the second idle gear 1200. A hinge shaft is provided at one end of the swing member 900, which is connected to the hinge seat on the ring body 200 through the hinge shaft, so that the swing member 900 can swing relative to the ring body 200. Two mounting holes are machined on the swing member 900, which are used to install the shafts of the first idle gear 1100 and the second idle gear 1200 respectively. The position and size of the mounting holes ensure that the two idle gears can engage correctly and can still maintain a good meshing state when the swing member 900 swings.

[0076] The transmission gear 1000 is made of the same material as the brush shaft 300 and is mounted on the brush shaft 300 through a key connection or interference fit to ensure synchronous rotation with the brush shaft 300.

[0077] The first idle gear 1100 and the second idle gear 1200 are adapted to the first inner ring gear 801 of the drive ring 800 and the transmission gear 1000 .

[0078] The transmission system consisting of the drive ring 800, the multi-stage idler gear and the swinging member 900 can flexibly adjust the transmission path according to the diameter of the pipe. Under different pipe diameters, it can ensure that the polishing brush is stably driven to rotate, improve the polishing adaptability to pipes of different diameters, and process a wider range of pipe diameters.

[0079] In some examples, the swing axis of the oscillating member 900 is coaxial with the swing axis of the first idler gear 1100, and a second elastic member 1300 is added. One end of the second elastic member 1300 acts on the oscillating member 900, and the other end acts on the ring body 200, providing a force that allows the oscillating member 900 to swing and maintain meshing of the second idler gear 1200 with the transmission gear 1000. This design further optimizes the stability and adaptability of the transmission system. The coaxial design simplifies the structure, reduces the errors and instabilities that may be caused by multi-axis motion, and allows the swing of the oscillating member 900 to be more coordinated with the movement of the first idler gear 1100. The provision of the second elastic member 1300 provides a restoring force for the oscillating member 900, ensuring that the second idler gear 1200 remains in a good meshing state with the transmission gear 1000 even when the brush shaft 300 changes position due to changes in the pipe diameter or other operating conditions. This ensures the continuity and stability of power transmission, thereby improving the rotational stability of the polishing brush 400 and ultimately enhancing the quality and consistency of the pipe surface polishing. The second elastic member 1300 can be a torsion spring to achieve the required swing restoring force and has the advantage of easy installation. The synergistic effect of the coaxial structure and the elastic member enhances the adaptability of the device to working conditions such as pipes of different diameters and uneven pipe surfaces.

[0080] In some examples, a first drive gear 1400 is added to optimize the driving mode of the drive ring 800 and improve the power transmission efficiency and stability of the entire pipe surface polishing device. The first drive gear 1400 is rotatably set on the ring body 200 and engages with the first inner gear ring 801 to drive the drive ring 800 to rotate. By engaging the first drive gear 1400 with the first outer gear ring 801, power transmission can be made more direct and smooth. Gear meshing transmission has the characteristics of accurate transmission ratio, strong load-bearing capacity and high efficiency, which can ensure that the drive ring 800 obtains a stable driving force, thereby ensuring that the polishing brush 400 rotates at a constant speed, improving the consistency and quality of the pipe surface polishing. At the same time, this design helps to simplify the structure of the drive system and reduce the energy loss and potential fault hazards that may be caused by too many intermediate transmission links.

[0081] In some examples, the ring body 200 is rotatably mounted on the movable member 100, and a second drive gear 1500 is provided to mesh with the second outer ring gear 202 of the ring body 200. The rotatable ring body 200 allows the polishing brush 400 to simultaneously perform axial polishing on the tubing while also achieving circumferential relative motion. This increases the variation in the contact path between the polishing brush and the tubing surface, resulting in a more comprehensive and uniform polishing of the tubing surface, reducing blind spots in the polishing process, and improving the consistency of the polishing quality. The provision of the second drive gear 1500 provides a stable and reliable power transmission method for the rotation of the ring body 200, ensuring that the ring body 200 rotates at the set speed.

[0082] The rotation of the ring body 200 increases the change in the contact trajectory between the polishing brush 400 and the pipe surface. Compared with the traditional fixed ring body design, the uniformity of the pipe surface polishing is improved, the polishing blind area is effectively reduced, and various parts of the pipe surface can be polished more comprehensively and consistently.

[0083] It should be noted that, because the number of polishing brushes 400 can be large, the rotation amplitude of the ring body 200 can be small, and only a small reciprocating forward and reverse rotation is required to achieve polishing coverage of the pipe by the polishing brush 400. During the process of the ring body 200 moving back and forth forward and reverse with a small amplitude, the drive ring 800, the first idle gear 1100, the second idle gear 1200 and the transmission gear 1000 can always maintain transmission connection without transmission interruption.

[0084] By independently controlling the rotation speed of the ring body 200 and the rotation speed of the drive ring 800, as well as the moving speed of the moving part 100, a variety of polishing modes can be achieved to meet the polishing needs of different pipe materials and surface requirements, and the diversity of polishing effects is improved.

[0085] The rational structural design and stable transmission method ensure that the equipment maintains high reliability during the complex polishing process. The reliable engagement of the second drive gear 1500 and the second outer ring gear 202, as well as the stable rotation of the ring body 200, ensure the reliability of the equipment, reduce downtime caused by component failure, and improve production efficiency.

[0086] In some examples, a traveling mechanism 1600 is provided, and the moving member 100 is mounted on the traveling mechanism 1600, thereby enhancing the flexibility and adaptability of the pipe surface polishing device. The introduction of the traveling mechanism 1600 enables the polishing device to travel outside the pipe, not only allowing for convenient access to different locations of the pipe for polishing, but also allowing for more flexible movement along the pipe axis when the pipe is long, further optimizing the polishing operation for extra-long pipes.

[0087] In some examples, the walking mechanism 1600 can adopt a combination structure of an annular frame 1601, sliding legs 1602, walking wheels 1603 and a third elastic member 1604, so as to optimize the contact between the device and the pipe and the walking stability. The annular frame 1601 surrounds the outside of the pipe, providing a stable frame structure for the entire walking mechanism, so that the walking wheels 1603 can be distributed around the circumference of the pipe to achieve all-round walking. The sliding legs 1602 are radially slidably set on the annular frame 1601 and can be adjusted according to the diameter change of the pipe, thereby enhancing the adaptability of the device to pipes of different diameters. The provision of the third elastic member 1604 ensures that the walking wheels 1603 always abut against the outer wall of the pipe with appropriate pressure, which not only ensures the walking stability, but also can buffer the impact of the uneven surface of the pipe or the vibration during walking on the device to a certain extent, thereby improving the accuracy and quality of polishing.

[0088] The combined structure of annular frame 1601, sliding legs 1602, running wheels 1603, and third elastic member 1604 enhances travel stability, effectively reducing uneven polishing caused by unstable travel and improving polishing quality. Sliding legs 1602 can be adjusted according to the diameter of the pipe, expanding the range of pipe diameters the device can accommodate compared to traditional fixed structures, meeting the polishing needs of a wider range of pipe diameters. The cushioning effect of third elastic member 1604 reduces wear on running wheels 1603 and other components caused by vibration and impact, improving the durability of the device and reducing maintenance costs and the frequency of component replacement.

[0089] In some examples, the sliding legs 1602 are arranged in two circles in a circular pattern, thereby optimizing the structure and performance of the walking mechanism 1600, thereby improving the working stability and reliability of the entire pipe surface polishing device. During the support and walking process, the single-circle sliding legs have relatively limited ability to cope with situations such as uneven pipe surfaces and offset center of gravity of the device. The design of two circles of sliding legs increases the contact points between the walking mechanism and the pipe and the uniformity of the support force distribution, which can better disperse the load generated by the device during walking and polishing, and reduce the risk of walking instability or damage to the pipe surface due to excessive local force. In addition, the two circles of sliding legs also enhance the balance adjustment ability of the device under different working conditions, making the device more stable when walking around the pipe, further improving the polishing quality.

[0090] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A pipe surface polishing device for polishing the pipe surface, characterized in that: include: A moving member (100), the moving member (100) is located outside the pipe, is arranged to move relative to the pipe, and has a moving direction parallel to the axial direction of the pipe, and is used to move relative to the pipe; a ring body (200), the ring body (200) being arranged on the moving member (100), the pipe being used to pass through the ring body (200), and the ring body (200) having a plurality of radial grooves (201); a brush shaft (300), the brush shaft (300) being rotatably and slidably disposed in the radial groove (201); A polishing brush (400), wherein the polishing brush (400) is arranged on the brush shaft (300), and a plurality of the polishing brushes (400) are used to polish the surface of the pipe; A pushing member (500), the pushing member (500) is arranged on the moving member (100) in an axially sliding manner along the tube, and has a plurality of circumferentially arranged pushing inclined surfaces (501), and the pushing member (500) is configured so that after sliding, the pushing inclined surfaces (501) push the brush shaft (300) to move along the radial groove (201) in a direction close to the tube; the brush shaft (300) has a pushed inclined surface (301) at one end away from the polishing brush (400), and the pushed inclined surface (301) abuts against the pushing inclined surface (501); a first elastic member (600), the first elastic member (600) being used to provide a force for the brush shaft (300) to move away from the pipe; a spacer (700), the spacer (700) being slidably disposed in the radial groove (201) and being located between the first elastic member (600) and the brush shaft (300), the brush shaft (300) being rotatably disposed relative to the spacer (700), and the first elastic member (600) acting on the spacer (700) causing the spacer (700) to push the brush shaft (300) to slide; a driving ring (800), the driving ring (800) being rotatably disposed on the moving member (100), the driving ring (800) having a first inner gear ring (801); a swinging member (900), the swinging member (900) being swingably disposed on the ring body (200); a transmission gear (1000), the transmission gear (1000) being arranged on the brush shaft (300); A first idle gear (1100) and a second idle gear (1200), wherein the first idle gear (1100) and the second idle gear (1200) are both rotatably arranged on the swinging member (900), the first idle gear (1100) is meshed with the second idle gear (1200), the first idle gear (1100) is meshed with the first inner gear ring (801), and the second idle gear (1200) is meshed with the transmission gear (1000).

2. The pipe surface polishing device according to claim 1, characterized in that: The swinging shaft of the swinging member (900) is coaxial with the swinging shaft of the first idle gear (1100), and further comprises: A second elastic member (1300), one end of the second elastic member (1300) acts on the swing member (900), and the other end acts on the ring body (200), providing a force for the swing member (900) to swing so that the second idle gear (1200) and the transmission gear (1000) remain in meshing engagement.

3. The pipe surface polishing device according to claim 2, characterized in that: Also includes: A first driving gear (1400) is rotatably disposed on the ring body (200) and is engaged with the first inner gear ring (801) to drive the driving ring (800) to rotate.

4. The pipe surface polishing device according to claim 1, characterized in that: The ring body (200) is rotatably arranged on the moving member (100), has a second outer gear ring (202), and further includes: A second driving gear (1500) is rotatably disposed on the moving member (100) and is engaged with the second outer gear ring (202) to drive the ring body (200) to rotate.

5. The pipe surface polishing device according to claim 1, characterized in that: It also includes a walking mechanism (1600), the walking mechanism (1600) is used for walking outside the pipe, and the moving part (100) is arranged on the walking mechanism (1600).

6. The pipe surface polishing device according to claim 5, characterized in that: The walking mechanism (1600) comprises: An annular frame (1601), the annular frame (1601) is located outside the pipe; Sliding legs (1602), the sliding legs (1602) are radially slidably arranged on the annular frame (1601) and are arranged in a plurality of circles; A walking wheel (1603), the walking wheel (1603) is arranged on the sliding leg (1602) and is used for walking on the outer wall of the pipe; A third elastic member (1604), one end of which acts on the sliding leg (1602) and the other end of which acts on the annular frame (1601), provides a force for the walking wheel (1603) to abut against the outer wall of the pipe.

7. The pipe surface polishing device according to claim 6, characterized in that: The sliding legs (1602) are arranged in two circles.

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