Cable shearing device and method for laying power transmission line

Abstract

The invention discloses a cable shearing device and method for laying a power transmission line, and relates to the technical field of cable laying. The cable shearing device for laying the power transmission line comprises a second ring seat, a second rotating shell arranged in the second ring seat and capable of rotating along the second ring seat, a cutter arranged at one end of a cable channel formed in the middle of the second rotating shell, and a driving assembly arranged on one side of the second ring seat and used for driving the cutter to rotate in the circumferential direction of the cable channel. And meanwhile, the ring cutter moves towards the center of the cable channel to carry out ring cutting work on the cable in the cable channel. Through driving of the driving assembly, the cutter can be driven to rotate and move centripetally, a cable is sheared step by step from outside to inside in a girdling mode, the shearing stress of a notch is more accurate, the extrusion deformation condition of the notch caused by overall stress in the shearing process is reduced, the shearing surface is smoother, and the shearing efficiency is improved. And the wire and the protective layer at the cut part maintain the original state, thereby facilitating subsequent wiring and other processes.

Description

Technical Field

[0001] This invention relates to the field of cable laying technology, specifically to a cable cutting device and cutting method for laying power transmission lines. Background Technology

[0002] As the transmission circuit of the power energy center, the power transmission line is generally laid in several ways after the survey is determined, such as overhead, underground (pipe and direct burial), underwater, wall and tunnel. During the cable laying process, the cable is usually reserved with extra length to avoid the situation that the cable is not long enough to reach the designated end point when the laying is completed. Therefore, after the cable is laid, it is usually necessary to use a cutting device to cut the extra length.

[0003] For example, Chinese Patent CN118357394A discloses a wire cutter for power line laying projects. When cutting cables, this type of device uses a guide limiting mechanism to limit the cable to be cut, and then uses a guide cutting mechanism to control the electric cylinder to push the push rod down, which in turn pushes the cutting blade to cut the cable.

[0004] However, the existing method of shearing cables by moving a shearing blade and generating relative shearing force is prone to deformation of the cable cut under the shearing force, resulting in an uneven cable cut. Furthermore, the internal conductors and protective layers of the cable cut are prone to deformation and wear due to mutual compression under the compression force, resulting in poor shearing effect. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a cable cutting device and method for laying power transmission lines, thus solving the problems raised in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: On one hand, the present invention provides a cable cutting device for laying power transmission lines, comprising: a second ring seat; a second rotating shell disposed inside the second ring seat and capable of rotating along the second ring seat, wherein a cable channel is formed in the middle of the second rotating shell; a cutter disposed at one end of the cable channel, and at least one set thereof, wherein the cutting edge of the cutter faces the center of the cable channel; and a driving assembly disposed on one side of the second ring seat for driving the cutter to rotate circumferentially along the cable channel and move toward the center of the cable channel to perform circumferential cutting of the cable in the cable channel.

[0007] Furthermore, it also includes: a second drive gear disk, disposed outside the second rotating housing, and having a second drive gear meshing with it on one side; and a second driven bevel gear, disposed on one side of the central shaft of the second drive gear, and capable of responding to the drive of the drive assembly to generate the action of driving the cutter to rotate circumferentially along the cable channel.

[0008] Furthermore, it also includes: a second lead screw guide rail, which is located inside the second rotating housing and has its slide fixedly connected to the cutter; a second drive shaft, which is located at one end of the second lead screw guide rail and drives the lead screw of the second lead screw guide rail to rotate; a second driven gear is provided at one end of the second drive shaft, and the second driven gear can respond to the drive of the drive assembly to generate the action of driving the cutter to move towards the center of the cable channel.

[0009] Furthermore, the drive assembly includes: a third ring seat, disposed on one side of the second ring seat; a driving bevel gear, disposed on one side of the third ring seat and meshing with a second driven bevel gear, driving the cutter to rotate circumferentially along the cable channel; a rack module, separately disposed on one side of the inner ring of the third ring seat, and forming a second track groove on its back; and a driven rack, disposed on the other side of the inner ring of the third ring seat, the driven rack being able to slide along the second track groove to selectively push out the rack module, so that the rack module meshes with the second driven gear, driving the cutter to move toward the center of the cable channel.

[0010] Furthermore, it also includes: a first ring seat, located on the other side of the third ring seat; a first rotating shell, located inside the first ring seat and capable of rotating along the first ring seat, with a clamping channel formed in the middle of the first rotating shell; a clamping arm, located inside the clamping channel, and at least one set thereof, the clamping arm being capable of rotating circumferentially along the clamping channel in response to the drive of the drive assembly and moving toward the center of the clamping channel to overcome the curvature of the cable and perform horizontal clamping of the cable; and a scraper, located on at least one side of the clamping arm and extending relative to the clamping surface of the clamping arm, so that the scraper moves centripetally with the rotation of the clamping arm to pre-scrape away dirt from the cable surface.

[0011] Furthermore, it also includes: a first drive gear disk, located outside the first rotating housing, and having a first drive gear meshing with it on one side; a first driven bevel gear, located on one side of the central shaft of the first drive gear, and meshing with the driving bevel gear, driving the clamping arm to rotate circumferentially along the clamping channel.

[0012] Furthermore, it also includes: a first lead screw guide rail, located inside the first rotating shell, and having at least one set thereof; the slide of the first lead screw guide rail is fixedly connected to the clamping arm; a first drive shaft, located at one end of the first lead screw guide rail, and driving the lead screw of the first lead screw guide rail to rotate; one end of the first drive shaft is provided with a first driven gear, which can selectively mesh with the rack module to generate a driving action to move the clamping arm toward the center of the clamping channel.

[0013] Furthermore, it also includes: a first prismatic shaft, which is slidably mounted on the axial direction of the first drive shaft and fixedly connected to the first driven gear; a first electric push rod, which is located on one side of the first prismatic shaft and has a first push handle at its telescopic end, and the other end of the first push handle is rotatably mounted on the first prismatic shaft, so that after the clamping arm clamps the cable, the first electric push rod drives the first driven gear away from the rack module.

[0014] Furthermore, it also includes a swing structure located below the clamping path of the clamping arm, used to drive the clamping arm to adapt to the curvature change of the cable, so as to reduce the clamping force required to overcome the cable curvature when the clamping arm clamps the cable. The swing structure includes: an annular slide table located below the clamping path of the clamping arm; an annular guide rail located inside the slide rail of the annular slide table, and a swing seat on one side of the guide rail for supporting the clamping arm, so that when the clamping arm clamps the cable, it swings in response to the clamping force of the clamping arm, keeping flush with the cable and adapting to the curvature change of the cable.

[0015] On the other hand, the present invention also provides a cable cutting method for laying transmission lines, comprising the following steps: Step 1: Connect the cable to be cut through the clamping channel and the cable channel; Step 2: Based on the control of the drive component, on the one hand, the drive clamping arm rotates around the cable circumference and moves towards the center of the cable to overcome the cable curvature and clamp the cable horizontally, so that the end to be cut is not affected by the change of the cable curvature itself. On the other hand, the drive cutter rotates synchronously around the cable circumference and moves towards the center of the cable, so that the cutter is close to the cable to prepare for cutting. Step 3: After the clamping arm has horizontally clamped and fixed the cable, release the drive component from the clamping arm. At this time, the continuous drive of the drive component will drive the cutter to rotate and move inward to perform a gradual circumferential cut on the cable from the outside to the inside, so that the cut surface of the cable remains flat.

[0016] The present invention has the following beneficial effects: (1) The cable cutting device and cutting method for laying transmission lines can drive the cutter to rotate and move inward through the drive component. It can perform a circumferential cutting operation on the cable from the outside to the inside. The cutting force is more precise, reducing the deformation of the cutting surface caused by the overall force during the cutting process. This makes the cutting surface flatter, and the conductor and protective layer at the cutting part maintain their original state, which is convenient for subsequent wiring and other processes.

[0017] (2) The cable cutting device and cutting method for laying transmission lines, driven by the drive component, drives the clamping arm to rotate synchronously and move inward before cutting the cable. During the inward movement of the clamping arm, the scraper at its edge can be used to pre-scrape and clean the dirt adhering to the cable surface, improving the subsequent clamping level. Then, the clamping arm is used to overcome the cable curvature and pre-clamp and position the cable to be cut, reducing the inclination of the cut caused by the bending force of the cable itself during the cable cutting process.

[0018] (3) The cable cutting device and cutting method for laying transmission lines, through the setting of the swing structure, can adaptively adjust the clamping direction of the clamping arm according to the laying state of the cable when clamping and positioning the cable, so that the clamping arm is consistent with the axial direction of the cable, so as to better overcome the curvature of the cable and perform horizontal clamping and positioning of the cable.

[0019] (4) The cable cutting device and cutting method for laying transmission lines have selective driving capability through the driving component. It can achieve integrated driving of the clamping arm and the cutter, and also has adjustment characteristics. The centripetal clamping speed of the clamping arm and the centripetal circumferential cutting speed of the cutter can be adjusted so that the cutter can maintain a flexible and adjustable cutting depth when cutting the cable to adapt to the circumferential cutting of different material parts of the cable.

[0020] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 This is a first partial cross-sectional view of the present invention; Figure 4 This is a second partial cross-sectional view of the present invention; Figure 5 This is a third partial sectional view of the present invention; Figure 6 This is a schematic diagram of the driving component in this invention; Figure 7 This is a partial cross-sectional view of the driving component in this invention; Figure 8 This is a schematic diagram of the first drive component in this invention; Figure 9 This is an exploded view of the first drive mechanism of the clamping arm in this invention; Figure 10 This is an exploded view of the second drive mechanism of the clamping arm in this invention; Figure 11 This is a schematic diagram of the assembly of the clamping arm and the scraper in this invention; Figure 12 This is a schematic diagram of the second drive component in the present invention; Figure 13 This is an exploded view of the first drive mechanism of the cutter in this invention; Figure 14 This is an exploded view of the second drive mechanism of the cutter in this invention; Figure 15 This is a schematic diagram of the oscillating structure in this invention; Figure 16 This is a schematic diagram of the first shearing state of the present invention; Figure 17 This is a schematic diagram of the second shearing state of the present invention; Figure 18 This is a schematic diagram of the third shearing state of the present invention.

[0022] In the diagram, 1. Support platform; 2. Annular slide table; 3. Annular guide rail; 4. Swivel seat; 5. Housing; 6. First ring seat; 7. First rotating shell; 8. Support arm; 9. Clamping arm; 10. Scraper; 11. Second ring seat; 12. Second rotating shell; 13. Cutting blade; 14. Third ring seat; 15. Spring seat; 151. Guide rod; 152. Return spring; 153. Support arm; 16. First motor; 17. Driving bevel gear; 18. First driven bevel gear; 19. First drive gear; 20. Second driven bevel gear; 21. Second drive gear; 22. First drive gear plate; 23. Second drive gear plate; 24. Rack module; 25. Dustproof sleeve; 26. Second driven gear; 27. Second motor 28. Drive gear; 29. ​​First driven gear; 30. First track groove; 31. Driven rack; 32. Second track groove; 33. First electric push rod; 34. First push handle; 35. First lead screw guide rail; 36. First bevel gear pair; 37. Third driven bevel gear; 38. First bevel gear ring; 39. Strain spring; 40. First drive shaft; 41. First prismatic shaft; 42. Second drive shaft; 43. Second lead screw guide rail; 44. Second bevel gear pair; 45. Fourth driven bevel gear; 46. Second bevel gear ring; 47. Second electric push rod; 48. Drive arm; 49. Locking gear seat; 50. Locking rack; 51. Third electric push rod; 52. Second push handle; 53. Second prismatic shaft. Detailed Implementation

[0023] 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, and 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.

[0024] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0025] The following is based on Figures 1-18 This invention describes a technical solution provided by an embodiment of the present invention: a cable cutting device and cutting method for laying power transmission lines.

[0026] On the one hand, the present invention provides a cable cutting device for laying power transmission lines; like Figures 1-5 As shown, a cable cutting device for laying power transmission lines includes a second ring seat 11, inside which is a second rotating shell 12. The second rotating shell 12 can rotate along the second ring seat 11. A cable channel is formed in the middle of the second rotating shell 12, and at least one set of cutters 13 is provided at one end of the cable channel, with the cutting edge of the cutter 13 facing the center of the cable channel. At the same time, a driving assembly is provided on one side of the second ring seat 11. By driving the cutter 13, it can be driven to rotate and move centripetally along the cable channel to perform circumferential cutting of the cable in the cable channel. On the other hand, while the cutter 13 rotates and moves centripetally, the device can be adjusted... The rotating, centripetal cutting depth of the cutter 13 allows for flexible and adjustable cutting depth when facing different materials of the cable. For example, when circumferentially cutting the outer protective rubber layer of the cable, the cutting depth of the cutter 13 can be deeper to cut the soft layer faster. When circumferentially cutting the inner aluminum strip, braided layer, and conductor layer of the cable, the cutting depth of the cutter 13 can be shallower to cut the hard layer more gently. This adapts to the circumferential cutting of different material parts of the cable, making the cutting force more precise, reducing the deformation of the cut due to overall force during the cutting process, improving the flatness of the cut surface, and avoiding damage to the cable at the cut.

[0027] In addition, a first ring seat 6 is provided on the other side of the drive assembly. A first rotating shell 7 is provided inside the first ring seat 6. The first rotating shell 7 can rotate along the first ring seat 6. A clamping channel is formed in the middle of the first rotating shell 7. At least one set of clamping arms 9 is provided inside the clamping channel, and the clamping arms 9 extend to the cutting side of the cutter 13 so as to transfer the force during cable cutting to the clamping arms 9. The clamping arms 9 can rotate circumferentially along the clamping channel in response to the drive of the drive assembly and move towards the center of the clamping channel. With the drive of the drive assembly, on the one hand, the clamping arms 9 can be driven to rotate and move centripetally along the clamping channel to overcome the cable curvature and clamp the cable horizontally, reducing the cutting tilt caused by the bending force during the cable cutting process. On the other hand, the centripetal clamping speed of the clamping arms 9 can be adjusted to make it more flexible in clamping and positioning the cable.

[0028] It should be noted that scrapers 10 are provided on one or both sides of the clamping arm 9 and extend relative to the clamping surface of the clamping arm 9. During the process of driving the clamping arm 9 to rotate and move inward, the scrapers 10 rotate and move inward synchronously with the clamping arm 9. Before the clamping arm 9 clamps the cable, the scrapers 10 can scrape and clean the dirt on the surface of the cable to improve the horizontal clamping stability of the clamping arm 9 on the cable. The scraped dirt is collected through the dustproof sleeve 25 provided on the clamping channel and can be cleaned out after the shearing is completed.

[0029] In addition to the above, it also includes a swing structure located below the clamping path of the clamping arm 9, which is used to drive the clamping arm 9 to adapt to the curvature change of the cable, so as to reduce the clamping force required by the clamping arm 9 to overcome the curvature of the cable when clamping the cable, so that the cutting device can face different cable laying conditions and better carry out the flush cutting of the cable cut surface.

[0030] like Figures 6-8 , Figure 12 As shown, to drive the drive assembly, the drive assembly includes a third ring seat 14 located on one side of the second ring seat 11. A first motor 16 is located on one side of the third ring seat 14. The output shaft of the first motor 16 is equipped with a driving bevel gear 17. By driving the driving bevel gear 17 through the first motor 16, the driving force is transmitted through the meshing of the driving bevel gear 17 with the first driven bevel gear 18 (e.g., ...). Figure 8 As shown), the force is transmitted to the first rotating shell 7, generating a rotational force that drives the first rotating shell 7, causing the clamping arm 9 to rotate. Simultaneously, the driving force is also transmitted through the meshing of the driving bevel gear 17 and the second driven bevel gear 20 (as shown). Figure 12 As shown, the force is transmitted to the second rotating shell 12, generating a rotational force that drives the second rotating shell 12, causing the cutter 13 to rotate synchronously.

[0031] As a further embodiment of this invention, a rack module 24 arranged in a split manner is provided on one side of the inner ring of the third ring seat 14. It can selectively mesh with the first driven gear 29 and the second driven gear 26. When the first rotating shell 7 drives the first driven gear 29 to rotate and the second rotating shell 12 drives the second driven gear 26 to rotate, the first driven gear 29 and the second driven gear 26 can rotate and mesh with the rack module 24, converting the rotational meshing into driving force, generating a driving force to drive the clamping arm 9 and the cutter 13 to move centripetally.

[0032] Furthermore, a driven rack 31 is provided on the other side of the inner ring of the third ring seat 14, and a first track groove 30 is formed in the inner ring of the third ring seat 14 for sliding the driven rack 31. At the same time, a second track groove 32 is formed on the back of each rack module 24. The driven rack 31 can slide along the second track groove 32 to selectively push out the rack modules 24. A second motor 27 is provided on the third ring seat 14 near the sliding end of the driven rack 31, and a driving gear 28 is provided on the output shaft of the second motor 27. The second motor 27 drives the driving gear 28, so that the driving gear 24 can be pushed out. Gear 28 pushes driven rack 31 out from the first track groove 30 and slides into the second track groove 32, pushing rack modules 24 out one by one. The number of rack modules 24 pushed out generates different transmission ratios. For example, when more rack modules 24 are pushed out, the single rotation of the first driven gear 29 and the second driven gear 26 can generate a larger transmission ratio with the rack modules 24. When fewer rack modules are pushed out, a single rotation generates a smaller transmission ratio. The centripetal movement speed of the clamping arm 9 and the cutter 13 can be flexibly adjusted, making it more flexible to adapt to the clamping and cutting of cables.

[0033] It should be noted that the third ring seat 14 is also provided with a spring seat 15 corresponding to the rack module 24. The spring seat 15 is composed of a guide rod 151, a return spring 152, and a support arm 153. The guide rod 151 is provided on the third ring seat 14, and the support arm 153 can be sleeved on the guide rod 151 and connected to the rack module 24. When the rack module 24 is pushed out by force, it drives the support arm 153 to move synchronously. The support arm 153 compresses the return spring 152 provided on the guide rod 151 to store energy. When the rack module 24 is not subjected to force in the future, it drives it to retract and return to its original position.

[0034] like Figures 8-11As shown, to achieve horizontal clamping of the cable cutting section, a first drive gear 22 is provided outside the first rotating shell 7, and a first drive gear 19 meshing with it is provided on one side of the first drive gear 22. A first driven bevel gear 18 is provided on one side of the central shaft of the first drive gear 19. The first motor 16 acts on the meshing driving force of the driving bevel gear 17 and the first driven bevel gear 18 to drive the first drive gear 19 to rotate. Then, the meshing of the first drive gear 19 with the first drive gear 22 generates a driving force to drive the first rotating shell 7 to rotate. On the one hand, it drives the clamping arm 9 to rotate, preparing for the scraper 10 on the clamping arm 9 to scrape off the dirt on the cable surface. On the other hand, it drives the first driven gear 29 on the first rotating shell 7 to rotate, intermittently meshing with the rack module 24, preparing for the centripetal movement of the clamping arm 9 and the scraper 10. As a further embodiment, at least one set of first lead screw guide rails 35 is provided inside the first rotating shell 7. The slide of the first lead screw guide rail 35 is fixedly connected to the clamping arm 9 via the support arm 8, and a first drive shaft 40 is provided at one end of the first lead screw guide rail 35. The first drive shaft 40 and the first lead screw guide rail 35 are connected by a first bevel gear pair 36. The other end of the first drive shaft 40 is provided with a first driven gear 29. The first driven gear 29 can selectively mesh with the rack module 24. When the first rotating shell 7 drives the first driven gear 29 to rotate, the first driven gear 29 meshes with the rack module 24 intermittently. The first driven gear 29 moves along the rack module... The meshing drive of 24 drives the first drive shaft 40 to rotate, and then, under the meshing transmission of the first bevel gear pair 36, drives the screw of the first lead screw guide 35 to rotate. During the rotation of the screw of the first lead screw guide 35, a third driven bevel gear 37 is provided at the other end of its screw, and the third driven bevel gear 37 meshes with the first bevel gear ring 38 located in the middle of the first rotating shell 7. When the screw of the first lead screw guide 35 rotates, it drives the combination of the third driven bevel gear 37 and the first bevel gear ring 38 to mesh and rotate, generating a driving force to drive the other first lead screw guides 35, converting the rotational driving force into a linear driving force, and driving the combination of the clamping arm 9 and the scraper 10 to move centripetally.

[0035] It should be noted that one end of the first drive shaft 40 is provided with a telescopic sliding first prismatic shaft 41 to achieve relative sliding and rotation between the two. The first prismatic shaft 41 is fixedly connected to the first driven gear 29, and a first electric push rod 33 is also provided on one side of the first prismatic shaft 41. The telescopic end of the first push rod 34 is provided with a first push handle 34, and the other end of the first push handle 34 is rotatably mounted on the first prismatic shaft 41. After the clamping arm 9 clamps the cable by moving centripetally, the first electric push rod 33 drives the first prismatic shaft 41 to retract into the first drive shaft 40, so that the first driven gear 29 moves away from the rack module 24, and releases the continuous centripetal movement of the clamping arm 9.

[0036] Furthermore, the central axis of the first driving gear 19 and the first driven bevel gear 18 is a second prismatic shaft 53, wherein the second prismatic shaft 53 is slidably connected to the first driving gear 19, one end of the second prismatic shaft 53 is fixedly connected to the first driven bevel gear 18, and the other end of the second prismatic shaft 53 is provided with a third electric push rod 51, and a second push handle 52 that is rotatably connected to the second prismatic shaft 53 is provided at the telescopic end of the third electric push rod 51. After the cable is clamped by the clamping arm 9, the telescopic drive of the third electric push rod 51 can be controlled, and the second push handle 52 can be rotatably connected to the second prismatic shaft 53. Handle 52 drives the first driven bevel gear 18 to move away from the driving bevel gear 17, disengaging the meshing state between the two, so that when the cutter 13 rotates and moves subsequently, the clamping arm 9 no longer rotates, and the clamping arm 9 is clamped and fixed on the cable (after the cable is laid, it is already in a fixed state, so after the clamping arm 9 is clamped on the cable, it can use the cable as a fixed platform to keep it and the components that provide its drive stable. It should be noted that the clamping arm 9 is clamped on the main laid cable so that when the excess cable is cut off, it can still be stably clamped on the cable).

[0037] In addition, the scraper 10 adopts a split design (such as...). Figure 11 As shown), and through the elastic installation of the strain spring 39 provided on the clamping arm 9, when the clamping arm 9 clamps the bent cable horizontally, a portion of the scraper 10 first rotates and scrapes the cable part in contact with the clamping arm 9 to clean it. As the cable gradually becomes more horizontal, the other scrapers 10 gradually come into contact with the remaining cable to scrape it, so as to ensure the thorough cleaning of the dirt on the cable surface.

[0038] like Figures 15-18 As shown, to achieve sway adaptation when clamping cables, the sway characteristics of the sway structure are utilized to drive the clamping arm 9 to sway in line with the cable axis, adapting to the curvature changes during cable laying. This reduces the clamping force required by the clamping arm 9 to overcome the cable curvature. Furthermore, when the clamping arm 9 is used to horizontally clamp the cable, its clamping force can also be synchronously transmitted to the sway structure, causing the sway structure to sway with the clamping force. This allows the clamping arm 9 to adapt to the curvature changes of the cable during clamping. Specifically: The sway structure includes an annular slide 2 located below the clamping path of the clamping arm 9. The annular slide 2 can be supported and fixed by the support platform 1. An annular guide rail 3 is provided inside the slide rail of the annular slide 2, and a sway seat 4 is provided on one side of the annular guide rail 3. The sway seat 4 is used to support the housing 5, thereby supporting the overall clamping and shearing components. Then, when horizontally clamping the cable, the sway structure is adjusted according to the state of the cable after laying (e.g., ...). Figure 16 , Figure 17 , Figure 18As shown, the annular guide rail 3 slides within the annular slide table 2, and the clamping direction of the clamping arm 9 is adjusted by swaying, so that the clamping arm 9 tends towards the cable axis. After the adjustment is completed, the clamping arm 9 is used to clamp along the cable axis. During the clamping process, the annular guide rail 3 is subjected to the clamping force of the clamping arm 9 and can slide within the annular slide table 2, so that the clamping arm 9 can tend towards the cable axis during the clamping process, adapting to the curvature change of the cable.

[0039] Furthermore, the oscillating structure also includes a locking rack 50 located on the edge of the oscillating seat 4, and a second electric push rod 47 located on the support platform 1. The extension end of the second electric push rod 47 is provided with a drive arm 48, and the drive arm 48 is provided with a locking tooth seat 49 that can mesh with the locking rack 50. After the cable is horizontally clamped by the clamping arm 9, the second electric push rod 47 is controlled to retract, which drives the locking tooth seat 49 on the drive arm 48 to mesh with the locking rack 50, forming a locking state, positioning the clamping state of the clamping arm 9, and preparing for the cable cutting.

[0040] like Figures 12-14 As shown, to achieve circumferential cutting during cable shearing, a second drive gear disk 23 is provided outside the second rotating shell 12, and a second drive gear 21 meshing with it is provided on one side of the second drive gear disk 23. A second driven bevel gear 20 is provided on one side of the central shaft of the second drive gear 21 and meshes with the driving bevel gear 17. During the horizontal clamping of the cable, the first motor 16 acts on the meshing driving force of the driving bevel gear 17 and the second driven bevel gear 20 to drive the second drive gear 21 to rotate. Then, the meshing of the second drive gear 21 with the second drive gear disk 23 generates a driving force to drive the second rotating shell 12 to rotate. On the one hand, it drives the cutter 13 to rotate along the cable to prepare for circumferential cutting of the cable. On the other hand, it drives the second driven gear 26 on the second rotating shell 12 to intermittently mesh with the rack module 24 to prepare for the cutter 13 to move towards the cable for shearing.

[0041] As a further embodiment, a second lead screw guide rail 43 is provided inside the second rotating shell 12, and its slide is fixedly connected to the cutter 13. One end of the second lead screw guide rail 43 is provided with a second drive shaft 42, wherein the second drive shaft 42 and the lead screw of the second lead screw guide rail 43 are driven by the meshing of a second bevel gear pair 44. The other end of the second drive shaft 42 is also provided with a second driven gear 26, which can selectively mesh with the rack module 24, driving the second driven gear 26 to rotate in the second rotating shell 12. At this time, the second driven gear 26 can intermittently mesh along the rack module 24. The meshing of the second driven gear 26 along the rack module 24 generates a driving force to drive the second drive shaft 42. Then, during the rotation of the second drive shaft 42, the meshing transmission of the second bevel gear pair 44 drives the screw of the second lead screw guide rail 43 to rotate. Furthermore, by setting a fourth driven bevel gear 45 at the other end of its screw, it meshes with the second bevel gear ring 46 located in the middle of the second rotating housing 12. This causes the screw of the second lead screw guide rail 43 to rotate, driving the fourth driven bevel gear 45... The driven bevel gear 45 meshes and rotates with the second bevel gear ring 46, generating a driving force to drive the other second lead screw guide rails 43. This converts the rotational driving force into a linear driving force, driving the cutter 13 to move centripetally. (By controlling the number of times the rack module 24 extends, different transmission ratios can be maintained between it and the second driven gear 26, allowing the centripetal driving force acting on the cutter 13 to remain dynamically changing. For example, when centripetally cutting the outer protective rubber layer of a cable, the centripetal movement of the cutter 13 can penetrate deeper to directly circumferentially cut the easier-to-cut outer protective layer.) When cutting the inner aluminum strip protective layer and conductor layer, the radial movement of the cutter 13 can be shallower to perform a smoother circumferential cutting, avoiding excessive circumferential cutting pressure and causing squeezing damage. After the cable circumferential cutting is completed, all rack modules 24 can be pushed out so that when they rotate in reverse, they push the combination of cutter 13 and clamping arm 9 to quickly reset, so that cutter 13 rotates and moves radially closer to the cable. After clamping arm 9 horizontally clamps and fixes the cable, it continues to rotate and move radially to perform a gradual circumferential cutting of the cable.

[0042] When in use (working), based on the driving force of the second motor 27 in the drive assembly acting on the drive gear 28, the driven rack 31 slides into the second track groove 32, which can push out the rack module 24 by a suitable number, and generate a suitable transmission ratio with the first driven gear 29 and the second driven gear 26 to adjust the centripetal movement speed of the clamping arm 9 and the cutter 13. Then, when clamping and cutting the cable, the first motor 16 first acts on the driving force of the active bevel gear 17, and the active bevel gear 17 meshes with the first driven bevel gear 18 and the second driven bevel gear 20 to generate the driving force to drive the first rotating shell 7 and the second rotating shell 12. On the one hand, the combination of clamping arm 9 and cutter 13 rotates around the circumference of the cable, and on the other hand, the combination of first driven gear 29 and second driven gear 26 rotates and meshes along the rack module 24 to generate the driving force to drive the clamping arm 9 and cutter 13 to move centripetally. Then, through the meshing drive of the first driven gear 29 along the rack module 24, a driving force is generated to drive the first lead screw guide rail 35, controlling the clamping arm 9 to rotate and move centripetally to horizontally clamp the cable. While horizontally clamping, the scraper 10 is used to pre-scrape and clean the dirt on the cable surface. After horizontally clamping the cable, the first driven gear 29 is controlled to move away from the rack module 24 and the first driven bevel gear 18 is controlled to move away from the driving bevel gear 17, releasing the driving force. This allows the clamping arm 9 to overcome the curvature of the cable while horizontally clamping and fixing it to the cable. During the horizontal clamping of the cable, the sway structure makes the clamping arm 9 tend towards the axial direction of the cable to reduce the force required to overcome the curvature of the cable. Synchronously, the second driven gear 26 rotates and meshes with the rack module 24, generating a driving force to drive the second lead screw guide rail 43, controlling the cutter 13 to rotate and move centripetally. During the process of clamping the cable by the clamping arm 9, the cutter 13 moves closer to the cable, and after the clamping arm 9 has fully clamped the cable, it continues to rotate and move centripetally to perform circumferential cutting on the cable. During the centripetal movement, the number of times the rack module 24 is pushed out can be adjusted so that the cutter 13 can maintain different cutting depths for faster cable cutting.

[0043] On the other hand, the present invention also provides a cable cutting method for laying transmission lines, comprising the following steps: Step 1: Connect the cable to be cut through the clamping channel and the cable channel; Step 2: Based on the control of the drive components, on the one hand, the clamping arm 9 is driven to rotate around the cable circumference and move towards the center of the cable to overcome the cable curvature and clamp the cable horizontally, so that the end to be cut is not affected by the change of the cable curvature itself. On the other hand, the cutter 13 is driven to rotate synchronously around the cable circumference and move towards the center of the cable, so that the cutter 13 is close to the cable to prepare for cutting. Step 3: After the clamping arm 9 clamps and fixes the cable horizontally, release the drive component from the clamping arm 9. At this time, the cutter 13 is driven to rotate and move inward continuously by the drive component to perform a gradual circumferential cut on the cable from the outside to the inside, so that the cut surface of the cable remains flat.

Claims

1. A cable cutting device for laying power transmission lines, characterized in that, include: Second ring seat (11); The second rotating shell (12) is located inside the second ring seat (11) and can rotate along the second ring seat (11). A cable channel is formed in the middle of the second rotating shell (12). A cutter (13) is provided at one end of the cable channel, and at least one set is provided, with the cut of the cutter (13) facing the center of the cable channel; The drive assembly is located on one side of the second ring seat (11) and is used to drive the cutter (13) to rotate circumferentially along the cable channel and move toward the center of the cable channel to perform circumferential cutting of the cable in the cable channel. Cable cutting devices for power transmission line laying also include: The second drive gear (23) is located outside the second rotating shell (12) and has a second drive gear (21) meshing with it on one side. The second driven bevel gear (20) is located on one side of the central shaft of the second drive gear (21) and can respond to the drive of the drive assembly to generate the action of driving the cutter (13) to rotate circumferentially along the cable channel; Cable cutting devices for power transmission line laying also include: The second lead screw guide (43) is located inside the second rotating shell (12), and the slide of the second lead screw guide (43) is fixedly connected to the cutter (13); The second drive shaft (42) is located at one end of the second lead screw guide (43) and drives the lead screw of the second lead screw guide (43) to rotate. The second drive shaft (42) is provided with a second driven gear (26) at one end. The second driven gear (26) can respond to the drive of the drive assembly and generate the action of driving the cutter (13) to move towards the center of the cable channel. The driving component includes: The third ring seat (14) is located on one side of the second ring seat (11); The driving bevel gear (17) is located on one side of the third ring seat (14) and meshes with the second driven bevel gear (20) to drive the cutter (13) to rotate circumferentially along the cable channel; The rack module (24) is arranged in a split manner on one side of the inner ring of the third ring seat (14), and a second track groove (32) is formed on the back of the rack module (24). Driven rack (31) is located on the other side of the inner ring of the third ring seat (14). Driven rack (31) can slide along the second track groove (32) to push out one or more rack modules (24), so that the rack module (24) meshes with the second driven gear (26) and drives the cutter (13) to move toward the center of the cable channel.

2. The cable cutting device for laying transmission lines according to claim 1, characterized in that, Also includes: The first ring seat (6) is located on the other side of the third ring seat (14); The first rotating shell (7) is located inside the first ring seat (6) and can rotate along the first ring seat (6). A clamping channel is formed in the middle of the first rotating shell (7). The clamping arm (9) is located inside the clamping channel and at least one set is provided. The clamping arm (9) can rotate circumferentially along the clamping channel in response to the drive of the drive component and move toward the center of the clamping channel to overcome the curvature of the cable and clamp the cable horizontally. A scraper (10) is provided on at least one side of the clamping arm (9) and extends relative to the clamping surface of the clamping arm (9), so that the scraper (10) moves centripetally as the clamping arm (9) rotates.

3. The cable cutting device for laying transmission lines according to claim 2, characterized in that, Also includes: The first drive gear (22) is located outside the first rotating shell (7) and has a first drive gear (19) meshing with it on one side. The first driven bevel gear (18) is located on one side of the central shaft of the first driving gear (19) and meshes with the driving bevel gear (17) to drive the clamping arm (9) to rotate circumferentially along the clamping channel.

4. The cable cutting device for laying transmission lines according to claim 2, characterized in that, Also includes: The first lead screw guide (35) is located inside the first rotating shell (7), and at least one set is provided. The slide of the first lead screw guide (35) is fixedly connected to the clamping arm (9). The first drive shaft (40) is located at one end of the first lead screw guide (35) and drives the lead screw of the first lead screw guide (35) to rotate. One end of the first drive shaft (40) is provided with a first driven gear (29). The first driven gear (29) can mesh with one or more rack modules (24) to generate the action of driving the clamping arm (9) to move towards the center of the clamping channel.

5. The cable cutting device for laying transmission lines according to claim 4, characterized in that, Also includes: The first prismatic shaft (41) is slidably mounted on the axial direction of the first drive shaft (40) and is fixedly connected to the first driven gear (29); The first electric push rod (33) is located on one side of the first prismatic shaft (41) and has a first push handle (34) at its telescopic end. The other end of the first push handle (34) is rotatably mounted on the first prismatic shaft (41). After the clamping arm (9) clamps the cable, the first electric push rod (33) drives the first driven gear (29) away from the rack module (24).

6. The cable cutting device for laying transmission lines according to claim 5, characterized in that, It also includes a sway structure located below the clamping path of the clamping arm (9) for driving the clamping arm (9) to adapt to changes in the curvature of the cable, wherein the sway structure includes: The annular slide (2) is located below the clamping path of the clamping arm (9); The annular guide rail (3) is located inside the slide rail of the annular slide table (2), and a swing seat (4) is provided on one side of it to support the clamping arm (9).

7. A method for cutting cables used in the laying of power transmission lines, characterized in that, The cable cutting device for laying transmission lines according to claim 6 includes the following steps: Step 1: Connect the cable to be cut through the clamping channel and the cable channel; Step 2: Based on the control of the drive components, on the one hand, drive the clamping arm (9) to rotate along the circumference of the cable and move towards the center of the cable to overcome the curvature of the cable and clamp the cable horizontally so that the end to be cut is not affected by the curvature of the cable itself. On the other hand, drive the cutter (13) to rotate synchronously along the circumference of the cable and move towards the center of the cable so that the cutter (13) is close to the cable to prepare for cutting. Step 3: After the clamping arm (9) clamps and fixes the cable horizontally, release the drive assembly from the clamping arm (9). At this time, the continuous drive of the drive assembly drives the cutter (13) to rotate and move inward, performing a gradual circumferential cut on the cable from the outside to the inside, so that the cable cutting surface remains flat.

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