Large pipeline multi-cutter synchronous cutting machine

Abstract

This application discloses a large-scale multi-blade synchronous pipe cutting machine, including a base, on which a mounting seat is fixedly installed. A ring rack seat is fixedly installed inside the mounting seat, and multiple mounting brackets are arranged inside the mounting seat. A second motor is fixedly installed on each mounting bracket, and a rotating shaft is rotatably connected inside the mounting bracket via bearings. The output shaft of the second motor passes through the mounting bracket and is fixedly connected to the rotating shaft. Gears are fixedly installed on the rotating shaft, and all gears mesh with the ring rack seat. By simultaneously activating multiple second motors, the rotational motion of the gears is converted into translational motion along the circumference of the rack. However, because the gears are constrained by the mounting brackets and can only rotate around the center of the rack, the gears drive the mounting brackets to revolve around the central axis of the ring rack seat, causing the cutting blades to perform circular motion around the pipe axis, achieving synchronous multi-blade circular cutting, thus significantly improving cutting accuracy and efficiency.

Description

Technical Field

[0001] This application relates to the field of pipe cutting technology, and in particular to a large-scale multi-blade synchronous pipe cutting machine. Background Technology

[0002] A pipeline is a system of pipes, pipe fittings, valves, and other components used to transport gases, liquids, or fluids containing solid particles. Pipelines have a wide range of applications, primarily in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering, and various industrial installations. Large pipelines require cutting during installation and maintenance to meet specific application needs.

[0003] Existing multi-blade synchronous pipe cutting machines can only perform multi-directional circumferential cutting when cutting large pipes. Single-blade cutting occupies too much space, and all blades are fixed at one end. This causes the large pipe to easily flex and deform due to its own weight, resulting in tilted cut surfaces or saw blade vibration. Furthermore, the axial and radial forces applied by the saw blade during cutting can cause pipe vibration, reducing the cutting efficiency. Therefore, a multi-blade synchronous pipe cutting machine is proposed to address these issues. Utility Model Content

[0004] This embodiment provides a large-scale multi-blade synchronous pipe cutting machine. Single-blade cutting occupies a large space, and the single-end fixing causes pipe deformation, cutting surface tilting and vibration.

[0005] According to one aspect of this application, a large-scale multi-blade synchronous pipe cutting machine is provided, including a base, a mounting seat fixedly mounted on the base, an annular rack seat fixedly mounted inside the mounting seat, a plurality of mounting brackets disposed inside the mounting seat, a second motor fixedly mounted on the mounting bracket, a rotating shaft rotatably connected inside the mounting bracket via bearings, the output shaft of the second motor passing through the mounting bracket and fixedly connected to the rotating shaft, gears fixedly mounted on the rotating shaft, and a plurality of gears meshing with the annular rack seat; Each of the mounting brackets is fixedly mounted with an electric push rod. The output end of the electric push rod is fixedly mounted with a mounting shell. The first motor is fixedly mounted inside the mounting shell. The output shaft of the first motor extends to the outer end of the mounting shell and is fixedly mounted with a cutting blade. The base is provided with a pipe that passes through the left fixed ring, the mounting base and the right fixed ring in sequence. Two fixed cylinders are fixedly installed on each of the two fixed rings. The inside of each fixed cylinder is rotatably connected to a screw through a bearing. A handwheel is fixedly installed at one end of each screw. The other end of each screw extends into the inside of the fixed cylinder and is threadedly connected to a movable cylinder. One end of the movable cylinder extends into the inside of the fixed ring and is fixedly installed with a clamping plate.

[0006] In this technical solution, guide plates are fixedly installed on both sides of the annular rack seat, and guide grooves are formed on both guide plates.

[0007] In this technical solution, a pipe is provided on the base, and the pipe can pass through the left fixing ring, the mounting base and the right fixing ring in sequence.

[0008] In this technical solution, two guide blocks are fixedly installed on each of the multiple mounting brackets, and the two guide blocks are slidably connected to two guide grooves respectively.

[0009] In this technical solution, the base is provided with two fixing rings, and two support legs are fixedly installed at the bottom ends of the two fixing rings. The bottom ends of the two support legs are fixedly connected to the base.

[0010] In this technical solution, anti-slip pads are provided on multiple clamping plates.

[0011] In this technical solution, two sliders are fixedly installed on each of the two movable cylinders, and two sliding grooves are opened on the inner wall of each of the multiple fixed cylinders, and the sliders are slidably connected to the sliding grooves.

[0012] Through the above embodiments of this application, by simultaneously starting multiple second motors, the rotating shaft drives the gear to rotate. The gear meshes with the ring rack seat, converting the rotational motion of the gear into a translational motion along the circumference of the rack. However, since the gear is constrained by the mounting bracket and can only rotate around the center of the rack, the gear drives the mounting bracket to revolve around the central axis of the ring rack seat, causing the cutting blade to make a circular motion around the pipe axis, realizing multi-blade synchronous circular cutting, which significantly improves the cutting accuracy and efficiency. By rotating the handwheel in sequence, the movable cylinder moves the anti-slip pad close to the pipe through the clamping plate, which can clamp and fix both ends of the pipe. The double-end clamping can evenly distribute the weight of the pipe and form two-point rigid support, which significantly reduces deformation during the cutting process, ensures the straightness of the cut, and also suppresses the vibration transmission of the saw blade during cutting, avoiding saw blade wobble or chipping. It can also be compatible with pipes of different diameters, improving the applicability of the device. By simultaneously activating four electric actuators, the electric actuators can fine-tune the position of the cutting blade according to the actual condition of the pipe. This not only allows the cutting blade to quickly adapt to pipe surfaces of different diameters without the need for manual repositioning or replacement of installation components, simplifying the switching process for different pipe specifications, but also maintains a uniform distribution of cutting force, reducing vibration or swaying of the tool due to excessive local force, thereby extending the service life of the cutting blade and improving the consistency of the cut. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of one embodiment of this application; Figure 2 This is a schematic diagram of the overall internal structure of one embodiment of this application; Figure 3 This is a side view of the internal structure of the mounting base according to an embodiment of this application.

[0015] Figure 4 This is a side view of the mounting bracket according to one embodiment of this application.

[0016] Figure 5 This is a partial side view of the internal structure of one embodiment of this application.

[0017] Figure 6 This is one embodiment of the present application. Figure 2 A magnified structural diagram at point A.

[0018] In the diagram: 1. Base; 2. Gear; 3. Support leg; 4. Anti-slip pad; 5. Fixing ring; 6. Movable cylinder; 7. Fixing cylinder; 8. Screw; 9. Guide groove; 10. First motor; 11. Electric push rod; 12. Mounting seat; 13. Rotating shaft; 14. Ring rack seat; 15. Second motor; 16. Cutting blade; 17. Slide groove; 18. Handwheel; 19. Slider; 20. Pipe; 21. Clamping plate; 22. Guide plate; 23. Guide block; 24. Mounting shell; 25. Mounting bracket. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.

[0020] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0021] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0022] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain circumstances to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0023] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] Please see Figure 1-6As shown, a large-scale multi-blade synchronous pipe cutting machine includes a base 1, on which a mounting seat 12 is fixedly installed. A ring rack seat 14 is fixedly installed inside the mounting seat 12. Multiple mounting brackets 25 are provided inside the mounting seat 12. A second motor 15 is fixedly installed on the mounting bracket 25. A rotating shaft 13 is rotatably connected inside the mounting bracket 25 via bearings. The output shaft of the second motor 15 passes through the mounting bracket 25 and is fixedly connected to the rotating shaft 13. Gears 2 are fixedly installed on the rotating shaft 13. Multiple gears 2 are meshed with the ring rack seat 14. Electric push rods 11 are fixedly installed on each of the multiple mounting brackets 25. A mounting shell 24 is fixedly installed on the output end of the electric push rod 11. A first motor 10 is fixedly installed inside the mounting shell 24. A cutting blade 16 is fixedly installed on the output shaft of the first motor 10 extending to the outer end of the mounting shell 24. The base 1 is provided with a pipe 20, which can pass through the left fixing ring 5, the mounting base 12 and the right fixing ring 5 in sequence. Two fixing cylinders 7 are fixedly installed on each of the two fixing rings 5. The inside of each of the two fixing cylinders 7 is rotatably connected to a screw 8 through a bearing. A handwheel 18 is fixedly installed at one end of each of the two screws 8. The other end of each screw 8 extends into the inside of the fixing cylinder 7 and is threadedly connected to a movable cylinder 6. One end of the movable cylinder 6 extends into the inside of the fixing ring 5 and is fixedly installed with a clamping plate 21.

[0026] It should be noted that in this application, all motors are directly controlled by the same controller to send commands synchronously, and the internal algorithm of the controller forces each motor to output the same speed and start-stop sequence. All electric linear actuators are controlled by the same electronic control system (such as a PLC or motion controller) which sends position / speed commands to ensure simultaneous start, pause, or stroke adjustment.

[0027] In this technical solution, guide plates 22 are fixedly installed on both sides of the annular rack seat 14, and guide grooves 9 are provided on both guide plates 22.

[0028] In this technical solution, the base 1 is provided with two fixing rings 5, and two support legs 3 are fixedly installed at the bottom of each of the two fixing rings 5, and the bottom of each of the two support legs 3 is fixedly connected to the base 1.

[0029] In this technical solution, two guide blocks 23 are fixedly installed on each of the multiple mounting brackets 25, and the two guide blocks 23 are slidably connected to the two guide grooves 9 respectively.

[0030] In this technical solution, anti-slip pads 4 are provided on each of the multiple clamping plates 21.

[0031] In this technical solution, two sliders 19 are fixedly installed on each of the two movable cylinders 6, and two sliding grooves 17 are opened on the inner wall of each of the multiple fixed cylinders 7, and the sliders 19 are slidably connected to the sliding grooves 17.

[0032] In use, the electrical components mentioned in this application are all connected to an external power supply and control switch. The handwheel 18 is rotated in sequence, which drives the screw 8 to rotate. With the cooperation of the slide groove 17 and the slider 19, the movable cylinder 6 moves along the threaded surface, so that the movable cylinder 6 drives the anti-slip pad 4 to approach the pipe 20 through the clamping plate 21. The two ends of the pipe 20 can be clamped and fixed. The double-end clamping can evenly distribute the weight of the pipe 20, forming two-point rigid support, significantly reducing deformation during the cutting process, ensuring the straightness of the cut, and also suppressing the vibration transmission of the saw blade during cutting, avoiding saw blade wobble or chipping. It can also be compatible with pipes 20 of different diameters, improving the applicability of the device. By simultaneously activating multiple second motors 15, the rotating shaft 13 drives the gear 2 to rotate. The gear 2 meshes with the ring rack seat 14, converting the rotational motion of the gear 2 into a translational motion along the circumference of the rack. However, since the gear 2 is constrained by the mounting bracket 25 and can only rotate around the center of the rack, the gear drives the mounting bracket 25 to revolve around the central axis of the ring rack seat 14, causing the cutting blade 16 to make a circular motion around the pipe axis, realizing multi-blade synchronous circular cutting, which significantly improves the cutting accuracy and efficiency. The first motor 10 is started, and its output shaft drives the cutting blade 16 to cut the pipe 20. At the same time, four electric push rods 11 are activated. The electric push rods 11 can finely adjust the position of the cutting blade 16 according to the actual condition of the pipe 20. This not only allows the cutting blade 16 to quickly adapt to the surface of pipes 20 with different diameters without the need for manual repositioning or replacement of installation parts, simplifying the switching process for pipes 20 of different specifications, but also maintains a uniform distribution of cutting force, reducing vibration or wobble caused by excessive local force on the tool, thereby extending the service life of the cutting blade 16 and improving the consistency of the cut.

[0033] The advantages of this application are: 1. By simultaneously activating multiple second motors 15, the rotating shaft 13 is driven to rotate the gear 2. The gear 2 meshes with the ring rack seat 14, converting the rotational motion of the gear 2 into a translational motion along the circumference of the rack. However, since the gear 2 is constrained by the mounting bracket 25 and can only rotate around the center of the rack, the gear 2 drives the mounting bracket 25 to revolve around the central axis of the ring rack seat 14, causing the cutting blade 16 to make a circular motion around the pipe axis, realizing multi-blade synchronous circular cutting, which significantly improves the cutting accuracy and efficiency. 2. By rotating the handwheel 18 in sequence, the movable cylinder 6 moves the anti-slip pad 4 close to the pipe 20 through the clamping plate 21, which can clamp and fix both ends of the pipe 20. The double-end clamping can evenly distribute the weight of the pipe 20, forming two-point rigid support, significantly reducing deformation during the cutting process, ensuring the straightness of the cut, and also suppressing the vibration transmission of the saw blade during cutting, avoiding saw blade wobble or chipping. It can also be compatible with pipes of different diameters, improving the applicability of the device. 3. By simultaneously activating four electric actuators 11, the electric actuators 11 can finely adjust the position of the cutting blade 16 according to the actual condition of the pipe 20. This not only allows the cutting blade 16 to quickly adapt to the surface of pipes 20 with different diameters without the need for manual repositioning or replacement of installation parts, simplifying the switching process for pipes 20 of different specifications, but also maintains a uniform distribution of cutting force, reducing vibration or swaying of the tool due to excessive local force, thereby extending the service life of the cutting blade 16 and improving the consistency of the cut.

[0034] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A large pipe multi-tool synchronous cutting machine comprising a base (1), characterized in that: A mounting base (12) is fixedly installed on the base (1). A ring rack seat (14) is fixedly installed inside the mounting base (12). Multiple mounting brackets (25) are provided inside the mounting base (12). A second motor (15) is fixedly installed on the mounting bracket (25). A rotating shaft (13) is rotatably connected inside the mounting bracket (25) through a bearing. The output shaft of the second motor (15) passes through the mounting bracket (25) and is fixedly connected to the rotating shaft (13). A gear (2) is fixedly installed on the rotating shaft (13). Multiple gears (2) are meshed with the ring rack seat (14). Electric push rods (11) are fixedly installed on each of the multiple mounting brackets (25). A mounting shell (24) is fixedly installed on the output end of the electric push rod (11). A first motor (10) is fixedly installed inside the mounting shell (24). A cutting blade (16) is fixedly installed on the output shaft of the first motor (10) extending to the outer end of the mounting shell (24). The base (1) is provided with a pipe (20), which can pass through the left fixed ring (5), the mounting seat (12) and the right fixed ring (5) in sequence. Two fixed cylinders (7) are fixedly installed on each of the two fixed rings (5). The inside of each of the two fixed cylinders (7) is rotatably connected to a screw (8) through a bearing. A handwheel (18) is fixedly installed at one end of each of the two screws (8). The other end of each of the two screws (8) extends into the inside of the fixed cylinder (7) and is threadedly connected to a movable cylinder (6). One end of the movable cylinder (6) extends into the inside of the fixed ring (5) and is fixedly installed with a clamping plate (21).

2. The large-scale multi-blade synchronous pipe cutting machine according to claim 1, characterized in that: Guide plates (22) are fixedly installed on both sides of the annular rack seat (14), and guide grooves (9) are opened on both guide plates (22).

3. The large diameter pipe multi-blade synchronous cutter according to claim 1, characterized in that: The base (1) is provided with two fixing rings (5), and two support legs (3) are fixedly installed at the bottom of each of the two fixing rings (5). The bottom of each of the two support legs (3) is fixedly connected to the base (1).

4. The large diameter pipe multi-cutter synchronous cutter machine of claim 1, wherein: Two guide blocks (23) are fixedly installed on each of the multiple mounting brackets (25), and the two guide blocks (23) are slidably connected to the two guide grooves (9) respectively.

5. The large-scale multi-blade synchronous pipe cutting machine according to claim 1, characterized in that: Anti-slip pads (4) are provided on each of the clamping plates (21).

6. The large diameter pipe multi-cutter synchronous cutter machine of claim 1, wherein: Two sliders (19) are fixedly installed on each of the two movable cylinders (6), and two sliding grooves (17) are opened on the inner wall of each of the multiple fixed cylinders (7). The sliders (19) are slidably connected to the sliding grooves (17).

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