Cable shearing device for power transmission line laying and shearing method

Abstract

The application discloses a cable shearing device and method for power transmission line laying, and relates to the technical field of cable laying. The cable shearing device for power transmission line laying 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 cable channel formed in the middle of the second rotating shell, a cutter arranged at one end of the cable channel, and a driving assembly arranged on one side of the second ring seat and used for driving the cutter to rotate circumferentially along the cable channel and move towards the center of the cable channel to perform ring cutting work on the cable in the cable channel. Through the driving of the driving assembly, the cutter can be driven to rotate and move towards the center, and the cable can be gradually sheared from the outside to the inside in a ring cutting mode. The cutting force is more accurate, the extrusion deformation of the cutting edge caused by the overall force during the shearing process is reduced, the shearing surface is smoother, the wires and the protective layer at the cutting edge position maintain the original state, and the subsequent wiring process is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable laying, in particular to a cable shearing device and method for power transmission line laying. BACKGROUND

[0002] As a transmission circuit of the power energy center, the power transmission line is generally laid in several ways such as overhead, underground (pipe and direct burial), water bottom, wall and tunnel after surveying and determining. In the process of cable laying, the cable usually has an extra length to avoid the situation that the cable length is insufficient to reach the specified endpoint at the end of laying. Therefore, the extra length of the cable needs to be sheared after the laying is completed.

[0003] As disclosed in Chinese Patent No. CN118357394A, a wire cutter for power line laying engineering is disclosed. When shearing the cable, the device uses a guide limiting mechanism to limit the cable to be sheared, and then uses a guide shearing mechanism to control the cylinder to push the push rod downward to push the shearing knife to shear the cable.

[0004] However, the existing method of shearing the cable by moving the shearing knife and generating relative shearing force on the cable is prone to extrusion stress deformation of the cable cutout under the action of shearing force, resulting in unevenness of the cable cutout. Moreover, the internal wires and protective layer of the cable cutout after extrusion stress are prone to deformation and wear due to mutual extrusion under extrusion stress, resulting in poor shearing effect. SUMMARY

[0005] To overcome the shortcomings of the prior art, the present application provides a cable shearing device and method for power transmission line laying to solve the problems raised in the background art.

[0006] To achieve the above purpose, the present application realizes the following technical solutions:

[0007] On the one hand, the present application provides a cable shearing device for power transmission line laying, which comprises: a second ring seat; a second rotating shell arranged inside the second ring seat and capable of rotating along the second ring seat, the second rotating shell having a cable passage formed in the middle; a cutter arranged at one end of the cable passage and having at least one group, the cutout of the cutter facing the center of the cable passage; a driving assembly arranged on one side of the second ring seat for driving the cutter to rotate circumferentially along the cable passage and move towards the center of the cable passage to perform ring cutting on the cable in the cable passage.

[0008] Further, it further comprises a second driving gear disc arranged outside the second rotating shell and provided with a second driving gear on one side thereof; a second driven bevel gear arranged on one side of the central shaft of the second driving gear and capable of generating a driving action of rotating the cutting knife along the cable passage in response to the driving of the driving assembly.

[0009] Further, it further comprises a second lead screw guide arranged inside the second rotating shell and provided with a sliding table fixedly connected with the cutting knife; a second driving shaft arranged at one end of the second lead screw guide and capable of driving the rotation of the lead screw of the second lead screw guide, and provided with a second driven gear at one end thereof, the second driven gear being capable of generating a driving action of moving the cutting knife towards the center of the cable passage in response to the driving of the driving assembly.

[0010] Further, the driving assembly comprises a third ring seat arranged on one side of the second ring seat; a driving bevel gear arranged on one side of the third ring seat and meshing with the second driven bevel gear to drive the cutting knife to rotate along the cable passage; a rack module arranged on one side of the inner ring of the third ring seat in a split mode and provided with a second track groove on the back thereof; and a driven rack arranged on the other side of the inner ring of the third ring seat, the driven rack being capable of selectively pushing the rack module out along the second track groove to make the rack module mesh with the second driven gear to drive the cutting knife to move towards the center of the cable passage.

[0011] Further, it further comprises a first ring seat arranged on the other side of the third ring seat; a first rotating shell arranged inside the first ring seat and capable of rotating along the first ring seat, the middle part of the first rotating shell being provided with a clamping passage; a clamping arm arranged inside the clamping passage and provided with at least one set, the clamping arm being capable of rotating along the clamping passage and moving towards the center of the clamping passage in response to the driving of the driving assembly to clamp the cable horizontally against the cable curvature; and a scraper arranged on at least one side of the clamping arm and extending relative to the clamping surface of the clamping arm to make the scraper rotate and move towards the center along with the clamping arm to pre-scrape the dirt on the surface of the cable.

[0012] Further, it further comprises a first driving gear disc arranged outside the first rotating shell and provided with a first driving gear on one side thereof; a first driven bevel gear arranged on one side of the central shaft of the first driving gear and meshing with the driving bevel gear to drive the clamping arm to rotate along the clamping passage.

[0013] Further, it further comprises a first lead screw guide arranged inside the first rotating shell and provided with at least one set, the sliding table of the first lead screw guide being fixedly connected with the clamping arm; and a first driving shaft arranged at one end of the first lead screw guide and capable of driving the rotation of the lead screw of the first lead screw guide, the first driving shaft being provided with a first driven gear at one end thereof, the first driven gear being capable of selectively meshing with the rack module to generate a driving action of moving the clamping arm towards the center of the clamping passage.

[0014] Further, further comprising: a first prismatic shaft, slidingly installed on the axial direction of the first driving shaft and fixedly connected with the first driven gear; and a first electric push rod, arranged on one side of the first prismatic shaft and provided with a first push handle at the telescopic end thereof, the other end of the first push handle being rotatably installed on the first prismatic shaft, so that, after the clamping arms clamp the cable, the first electric push rod drives the first driven gear to move away from the rack module.

[0015] Further, further comprising a deflection structure arranged below the clamping path of the clamping arms, for driving the clamping arms to adapt to the curvature change of the cable, so as to reduce the clamping force required to overcome the curvature of the cable when the clamping arms clamp the cable, wherein the deflection structure comprises: a ring-shaped sliding table arranged below the clamping path of the clamping arms; and a ring-shaped guide rail arranged in the sliding rail of the ring-shaped sliding table and provided with a deflection seat on one side thereof, for supporting the clamping arms, so that, when the clamping arms clamp the cable, the clamping arms are deflected and swung in response to the clamping force, and are kept flush with the cable to adapt to the curvature change of the cable.

[0016] On the other hand, the present application also provides a cable shearing method for power transmission line laying, comprising the following steps:

[0017] Step one, passing the cable to be sheared through the clamping channel and the cable channel;

[0018] Step two, based on the control of the driving assembly, on the one hand, the clamping arms are driven to rotate along the circumference of the cable and move towards the center of the cable, to clamp the cable horizontally and overcome the curvature of the cable, so that the end to be sheared is not affected by the curvature change of the cable, and on the other hand, the cutter is driven to rotate synchronously along the circumference of the cable and move towards the center of the cable, so that the cutter is close to the cable for shearing preparation;

[0019] Step three, after the clamping arms clamp and fix the cable horizontally, the driving of the clamping arms by the driving assembly is released, at this time, the driving cutter is continuously rotated and moved towards the center by the continuous driving of the driving assembly, to perform step-by-step ring cutting work on the cable from the outside to the inside, so that the shearing surface of the cable is kept flat.

[0020] The present application has the following beneficial effects:

[0021] (1) The cable shearing device and method for power transmission line laying can drive the cutter to rotate and move towards the center by the driving of the driving assembly, to perform step-by-step shearing work on the cable from the outside to the inside in a ring cutting manner, the stress of the cutting is more accurate, the deformation of the cutting caused by the overall stress during the shearing process is reduced, the shearing surface is more flat, and the wires and the protective layer at the cutting position maintain the original state, which is convenient for subsequent wiring process.

[0022] (2) The cable shearing device and shearing method for power transmission line laying, through the driving of the driving assembly, before shearing the cable, the driving clamping arm rotates and moves centripetally synchronously, and in the centripetal movement process of the clamping arm, the scraper at the edge thereof can be used to pre-scrape and clean the dirt adhered to the surface of the cable, improve the subsequent clamping level, and then the clamping arm is used to overcome the curvature of the cable to pre-clamp and position the cable to be sheared, so as to reduce the inclination of the cut in the shearing process of the cable due to the bending stress of the cable itself.

[0023] (3) The cable shearing device and shearing method for power transmission line laying, through the setting of the deflection structure, when clamping and positioning the cable, the clamping direction of the clamping arm can be self-adaptively adjusted according to the laying state of 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 horizontally clamp and position the cable.

[0024] (4) The cable shearing device and shearing method for power transmission line laying, through the driving of the driving assembly, it has the ability of selective driving, can realize the integrated driving of the clamping arm and the cutter, and has the adjusting characteristic, can adjust the centripetal clamping speed of the clamping arm and the centripetal cutting speed of the cutter, so that the cutter shears the cable while keeping the flexible and adjustable depth of cut, to adapt to the cutting of different material parts of the cable.

[0025] Of course, it is not necessary to achieve all the advantages described above when implementing any product of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The structure of the present application Figure One ;

[0027] Figure 2 The structure of the present application Figure Two ;

[0028] Figure 3 The first partial cross-sectional view of the present application

[0029] Figure 4 The second partial cross-sectional view of the present application

[0030] Figure 5 The third partial cross-sectional view of the present application

[0031] Figure 6 The structure of the driving assembly in the present application

[0032] Figure 7 The partial cross-sectional view of the driving assembly in the present application

[0033] Figure 8 The first driving schematic of the driving assembly in the present application

[0034] Figure 9 is a first driving explosion view of the clamping arm in the present application;

[0035] Figure 10 is a second driving explosion view of the clamping arm in the present application;

[0036] Figure 11 is an assembly view of the clamping arm and the scraper in the present application;

[0037] Figure 12 is a second driving view of the driving assembly in the present application;

[0038] Figure 13 is a first driving explosion view of the cutter in the present application;

[0039] Figure 14 is a second driving explosion view of the cutter in the present application;

[0040] Figure 15 is a structure view of the yawing structure in the present application;

[0041] Figure 16 is a first shearing state view of the present application;

[0042] Figure 17 is a second shearing state view of the present application;

[0043] Figure 18 is a third shearing state view of the present application.

[0044] In the figure, 1, support table; 2, annular sliding table; 3, annular guide rail; 4, deflection seat; 5, machine shell; 6, first ring seat; 7, first rotary shell; 8, support arm; 9, clamping arm; 10, scraper; 11, second ring seat; 12, second rotary shell; 13, cutter; 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 disc; 23, second drive gear disc; 24, rack module; 25, dustproof sleeve; 26, second driven gear; 27, second motor; 28, driving 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 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 screw guide rail; 44, second bevel gear pair; 45, fourth driven bevel gear; 46, second bevel gear ring; 47, second electric push rod; 48, driving arm; 49, locking gear seat; 50, locking rack; 51, third electric push rod; 52, second push handle; 53, second prismatic shaft. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0046] In the description of the present application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0047] The technical solutions provided by the embodiments of the present application will be described below according to Figures 1-18 A technical solution provided by the embodiments of the present application is a cable shearing device for power transmission line laying and a shearing method.

[0048] In one aspect, the present application provides a cable shearing device for power transmission line laying;

[0049] As Figures 1-5As shown, the cable shearing device for power transmission line laying includes a second ring seat 11, a second rotating shell 12 is arranged inside the second ring seat 11, the second rotating shell 12 can rotate along the second ring seat 11, a cable passage is formed in the middle of the second rotating shell 12, and at least one set of cutting knives 13 is arranged at one end of the cable passage, so that the cutting edges of the cutting knives 13 are opposite to the center of the cable passage, and a driving assembly is arranged on one side of the second ring seat 11, and the driving assembly can drive the cutting knives 13 to rotate and move towards the center along the cable passage, so that the cable in the cable passage is ring cut. On the other hand, the cutting depth of the cutting knives 13 rotating and moving towards the center can be adjusted, so that the cutting depth can be adjusted flexibly when facing different materials of the cable (for example, when the outer protective rubber layer of the cable is ring cut, the rotating cutting depth of the cutting knives 13 can be deeper, and the soft layer can be sheared faster; when the aluminum belt, braided layer and wire layer inside the cable are ring cut, the rotating cutting depth of the cutting knives 13 can be shallower, and the hard layer can be sheared more gently), so that the ring cutting work of different material parts of the cable can be adapted, the stress of the cutting edge is more accurate, the extrusion deformation of the cutting edge caused by the overall stress in the shearing process is reduced, the flatness of the shearing surface is improved, and the cable at the cutting edge part is also prevented from being damaged.

[0050] In addition, the first ring seat 6 is arranged on the other side of the driving assembly, the first rotating shell 7 is arranged inside the first ring seat 6, the first rotating shell 7 can rotate along the first ring seat 6, a clamping passage is formed in the middle of the first rotating shell 7, at least one set of clamping arms 9 is arranged inside the clamping passage, and the clamping arms 9 extend to one side of the cutting edge of the cutting knives 13, so that the stress in the cable shearing is transmitted to the clamping arms 9. The clamping arms 9 can rotate along the clamping passage and move towards the center in response to the driving of the driving assembly, and the driving of the driving assembly can drive the clamping arms 9 to rotate and move towards the center along the clamping passage, so that the cable is horizontally clamped to overcome the cable curvature, and the inclination of the cutting edge caused by the bending stress of the cable in the shearing process is reduced. On the other hand, the centripetal clamping speed of the clamping arms 9 can be adjusted, so that the clamping and positioning of the cable are more flexible.

[0051] It should be noted that the scraper 10 is arranged on one side or both sides of the clamping arm 9 and extends relative to the clamping surface of the clamping arm 9. During the driving of the clamping arm 9 to rotate and move towards the center, the scraper 10 rotates and moves towards the center synchronously with the clamping arm 9, and can scrape and clean the dirt on the surface of the cable before the clamping arm 9 clamps the cable, so as to improve the horizontal clamping stability of the clamping arm 9 to the cable. The dirt scraped and cleaned is collected by the dustproof sleeve 25 arranged on the clamping passage, and can be cleaned out after the shearing is completed.

[0052] In addition to the above, a yawing structure is arranged 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 to overcome the curvature of the cable when the clamping arm 9 clamps the cable, so that the cutting device can face the cable laying situation under different conditions and better implement the flush cutting work of the cable cutting surface.

[0053] As shown in Figures 6-8 , Figure 12 To achieve the driving of the driving assembly, the driving assembly includes a third ring seat 14 arranged on one side of the second ring seat 11, and a first motor 16 is arranged on one side of the third ring seat 14. The output shaft of the first motor 16 is provided with a driving bevel gear 17. By driving the driving bevel gear 17 through the first motor 16, the driving force is transmitted to the first rotating shell 7 through the meshing (as shown in Figure 8 ) of the driving bevel gear 17 and the first driven bevel gear 18, so as to generate a rotating force to drive the first rotating shell 7 to rotate, and at the same time, the driving force is transmitted to the second rotating shell 12 through the meshing (as shown in Figure 12 ) of the driving bevel gear 17 and the second driven bevel gear 20, so as to generate a rotating force to drive the second rotating shell 12 to rotate, and the cutting knife 13 rotates synchronously.

[0054] As a further scheme of the embodiment, a rack module 24 is arranged on the inner side of the third ring seat 14 in a split arrangement, which 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 be rotatably meshed with the rack module 24, so as to convert the rotary meshing into driving force, and generate driving force to drive the clamping arm 9 and the cutting knife 13 to move centripetally.

[0055] Further, a driven rack 31 is arranged 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 the sliding of the driven rack 31, and a second track groove 32 is formed in the back of each rack module 24, and the driven rack 31 can slide along the second track groove 32 to selectively push out the number of rack modules 24, and a second motor 27 is arranged on the third ring seat 14 on the side close to the sliding end of the driven rack 31, and a driving gear 28 is arranged on the output shaft of the second motor 27, and the driving gear 28 is driven by the second motor 27 to push the driven rack 31 out of the first track groove 30 and slide into the second track groove 32, and the rack modules 24 are pushed out one by one, and the number of rack modules 24 pushed out is used to generate different driving states of different transmission ratios, for example, when the number of rack modules 24 pushed out is larger, 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, and when the number of rack modules 24 pushed out is smaller, the single rotation generates a smaller transmission ratio, and the speed of the centripetal movement of the clamping arm 9 and the cutter 13 can be flexibly adjusted, and the cable clamping and shearing work can be more flexibly adapted.

[0056] It should be noted that the third ring seat 14 is also provided with a spring seat 15 corresponding to each rack module 24, wherein the spring seat 15 is composed of a guide rod 151, a return spring 152 and a supporting arm 153, the guide rod 151 is arranged on the third ring seat 14, the supporting arm 153 can be sleeved on the guide rod 151 and connected with the rack module 24, when the rack module 24 is pushed out, the supporting arm 153 moves synchronously, the supporting arm 153 compresses the return spring 152 arranged on the guide rod 151 to store energy, and when the subsequent rack module 24 is not forced, it drives it to contract and reset.

[0057] As Figures 8-11As shown, in order to realize the horizontal clamping of the cable shearing part, a first driving gear plate 22 is arranged outside the first rotating shell 7, and a first driving gear 19 is arranged on one side of the first driving gear plate 22 and meshes with the first driving gear plate 22. A first driven bevel gear 18 is arranged on one side of the central shaft of the first driving gear 19. The meshing driving force of the first driving gear 19 acting on the driving bevel gear 17 and the first driven bevel gear 18 by the first motor 16 drives the first driving gear 19 to rotate, and then the meshing of the first driving gear 19 and the first driving gear plate 22 generates driving force to drive the first rotating shell 7 to rotate, on the one hand, it drives the clamping arm 9 to rotate, and prepares for the cable surface dirt scraping of the scraper 10 on the clamping arm 9, on the other hand, it drives the first driven gear 29 on the first rotating shell 7 to rotate, and intermittently meshes with the rack module 24, and prepares for the centripetal movement of the clamping arm 9 and the scraper 10. As a further scheme of the embodiment, at least one set of first lead screw guide rails 35 is arranged inside the first rotating shell 7. The sliding table of the first lead screw guide rail 35 is fixedly connected with the clamping arm 9 through the support arm 8, and a first driving shaft 40 is arranged at one end of the first lead screw guide rail 35. The first driving shaft 40 is connected with the first lead screw guide rail 35 through the first bevel gear pair 36. The other end of the first driving shaft 40 is provided with the 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 intermittently meshes with the rack module 24. The first driven gear 29 drives the first driving shaft 40 to rotate along the meshing of the rack module 24. Then, under the meshing transmission of the first bevel gear pair 36, the lead screw of the first lead screw guide rail 35 is driven to rotate. During the rotation of the lead screw of the first lead screw guide rail 35, the third driven bevel gear 37 is arranged at the other end of the lead screw, and the third driven bevel gear 37 meshes with the first bevel gear 38 arranged in the middle of the first rotating shell 7. When the lead screw of the first lead screw guide rail 35 rotates, the combined meshing of the third driven bevel gear 37 and the first bevel gear 38 rotates, generating driving force to drive other first lead screw guide rails 35. The rotary driving force is converted into linear driving force to drive the centripetal movement of the combination of the clamping arm 9 and the scraper 10.

[0058] It should be noted that one end of the first driving shaft 40 is provided with a first prismatic shaft 41 which can slide and rotate. The first prismatic shaft 41 is fixedly connected with the first driven gear 29, and a first electric push rod 33 is further arranged on one side of the first prismatic shaft 41. The first push handle 34 is arranged at the other end of the first electric push rod 33. The first push handle 34 is rotatably installed on the first prismatic shaft 41. When the clamping arm 9 is clamped to the cable after the centripetal movement, the first electric push rod 33 drives the first prismatic shaft 41 to retract into the first driving shaft 40, so that the first driven gear 29 moves away from the rack module 24, and the continuous centripetal movement of the clamping arm 9 is released.

[0059] And, the first driving gear 19 and the central shaft of the first driven bevel gear 18 are a second prismatic shaft 53, wherein the second prismatic shaft 53 is in sliding connection with the first driving gear 19, one end of the second prismatic shaft 53 is fixedly connected with 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 rotatingly connected with the second prismatic shaft 53 is arranged at the telescopic end of the third electric push rod 51. After the cable is clamped by the clamping arm 9, the third electric push rod 51 can be controlled to drive the telescopic movement, the first driven bevel gear 18 is driven by the second push handle 52 to move away from the driving bevel gear 17, so that the engagement between the two is released. When the cutting knife 13 rotates and moves subsequently, the clamping arm 9 does not rotate any more, and the clamping arm 9 is clamped on the cable (after the cable is laid, the cable is in a fixed state, so that after the clamping arm 9 is clamped on the cable, the cable can be used as a fixed platform to maintain the stability of the clamping arm 9 and the components driven by the clamping arm 9. It should be noted that when the excess cable is cut off, the clamping arm 9 can still be stably clamped on the cable.

[0060] In addition, the scraper 10 is arranged in a split type (as shown in Figure 11 , and is elastically mounted by the strain spring sheet 39 arranged on the clamping arm 9, so that when the clamping arm 9 horizontally clamps the curved cable, part of the scraper 10 first rotates to clean the part of the cable in contact with the clamping arm 9. When the cable gradually tends to be horizontal, the other scrapers 10 gradually contact and clean the remaining cable to ensure the comprehensive cleaning of the dirt on the surface of the cable.

[0061] As shown in Figures 15-18 , in order to adapt to the deflection of the clamped cable, the deflection structure is used to drive the clamping arm 9 to deflect and keep consistent with the axial direction of the cable, so as to adapt to the curvature change of the cable during laying, reduce the clamping force required by the clamping arm 9 to overcome the curvature of the cable, and the clamping force can be transmitted to the deflection structure synchronously when the clamping arm 9 horizontally clamps the cable, so that the deflection structure deflects under the clamping force to make the clamping arm 9 adapt to the curvature change of the cable during clamping. Specifically:

[0062] The deflection structure includes a ring-shaped sliding table 2 arranged below the clamping path of the clamping arm 9, and the ring-shaped sliding table 2 can be supported and fixed by the support table 1. The sliding rail of the ring-shaped sliding table 2 is provided with a ring-shaped guide rail 3, and the ring-shaped guide rail 3 is provided with a deflection seat 4 on one side. The deflection seat 4 is used to support the shell 5 to support the whole clamping and shearing components. Then, when the cable is horizontally clamped, the state of the cable after laying (as shown in 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.

[0063] 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.

[0064] 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.

[0065] As a further scheme of the present embodiment, a second lead screw guide 43 is arranged inside the second rotating shell 12, and the slide of the second lead screw guide 43 is fixedly connected with the cutter 13. One end of the second lead screw guide 43 is provided with a second driving shaft 42. The second driving shaft 42 is in meshing transmission with the lead screw of the second lead screw guide 43 through a second bevel gear pair 44. The other end of the second driving shaft 42 is further provided with a second driven gear 26. The second driven gear 26 can selectively mesh with the rack module 24. When the second driven gear 26 is rotated by the second rotating shell 12, the second driven gear 26 can be intermittently meshed along the rack module 24. The meshing driving of the second driven gear 26 along the rack module 24 generates a driving force to drive the second driving shaft 42. In the rotation process of the second driving shaft 42, the lead screw of the second lead screw guide 43 is driven to rotate through the meshing transmission of the second bevel gear pair 44. The other end of the lead screw of the second lead screw guide 43 is provided with a fourth driven bevel gear 45, which is in meshing with a second bevel gear ring 46 arranged in the middle of the second rotating shell 12. When the lead screw of the second lead screw guide 43 rotates, the fourth driven bevel gear 45 and the second bevel gear ring 46 are driven to rotate in combination, generating a driving force to drive the other second lead screw guide 43. The rotary driving force is converted into linear driving force to drive the cutter 13 to move centripetally (by controlling the number of the rack modules 24 to be pushed out, different transmission ratio states can be maintained between the second driven gear 26, so that the centripetal driving force acting on the cutter 13 remains dynamic. For example, when the outer protective rubber layer of the cable is cut, the cutter 13 can be moved centripetally to a deeper depth to directly and circularly cut the outer protective layer which is easier to cut. When the aluminum band protective layer and the wire layer inside the cable are cut, the cutter 13 can be moved centripetally to a shallower depth to perform a more gentle circular cutting work, avoiding excessive circular cutting pressure to cause extrusion damage. After the cable is circularly cut, all the rack modules 24 can be controlled to be pushed out to quickly reset the cutter 13 and the clamp arm 9 when they are reversely operated). The cutter 13 is rotated and moved centripetally to approach the cable. After the clamp arm 9 horizontally clamps and fixes the cable, the cutter 13 is continuously rotated and moved centripetally to gradually circularly cut the cable.

[0066] When in use (during work), the rack module 24 can be pushed out by a proper number based on the driving force of the second motor 27 acting on the driving gear 28 in the driving assembly to drive the driven rack 31 to slide into the second track slot 32. The first driven gear 29 and the second driven gear 26 can be in a suitable transmission ratio state to adjust the centripetal movement speed of the clamp arm 9 and the cutter 13.

[0067] When the cable is clamped and cut, the first motor 16 drives the driving force of the driving bevel gear 17, and the driving force of the first driving bevel gear 17 and the second driving bevel gear 20 is driven by the meshing, so as to drive the first rotating shell 7 and the second rotating shell 12, on the one hand, the combination of the clamping arm 9 and the cutter 13 rotates around the cable, on the other hand, the combination of the first driven gear 29 and the second driven gear 26 rotates and meshes along the rack module 24, so as to drive the clamping arm 9 and the cutter 13 to move towards the center, and the driving force of the clamping arm 9 and the cutter 13 is generated;

[0068] Then, the first driven gear 29 meshes along the rack module 24 to drive the first lead screw guide rail 35, control the clamping arm 9 to rotate and move towards the center, clamp the cable horizontally, and at the same time, the scraper 10 is used to pre-scrape and clean the cable surface, and after the cable is clamped horizontally, the first driven gear 29 is moved away from the rack module 24, and the first driven bevel gear 18 is moved away from the driving bevel gear 17, so as to remove the driving force, so that the clamping arm 9 overcomes the curvature of the cable and is clamped and fixed on the cable, and in the process of clamping the cable horizontally, the clamping arm 9 tends to the axial direction of the cable through the deflection structure, so as to reduce the stress of overcoming the curvature of the cable;

[0069] Synchronously, the second driven gear 26 rotates and meshes along the rack module 24 to drive the second lead screw guide rail 43, control the cutter 13 to rotate and move towards the center, and the cutter 13 is close to the cable during the process that the clamping arm 9 clamps the cable, and after the clamping arm 9 completely clamps the cable, the cutter 13 continuously rotates and moves towards the center to cut the cable, and during the process of moving towards the center, the cutter 13 can maintain different depths of cut by adjusting the number of the rack module 24, so as to cut the cable more quickly.

[0070] On the other hand, the application also provides a cable cutting method for power transmission line laying, which comprises the following steps:

[0071] Step one, the cable to be cut is clamped through the clamping channel and the cable channel;

[0072] Step two, based on the control of the driving assembly, on the one hand, the clamping arm 9 rotates along the cable and moves towards the center of the cable, overcomes the curvature of the cable to clamp the cable horizontally, so that the end to be cut is not affected by the curvature change of the cable, on the other hand, the cutter 13 rotates along the cable and moves towards the center of the cable, so that the cutter 13 is close to the cable for cutting preparation;

[0073] Step three, after the clamping arm 9 clamps and fixes the cable horizontally, the driving of the clamping arm 9 by the driving assembly is removed, at this time, the driving assembly continuously drives the cutter 13 to continuously rotate and move towards the center, so as to gradually cut the cable from the outside to the inside, and the cutting surface of the cable remains flat.

Claims

1. A cable shearing device for stringing of a power line, characterized in that, The cable shearing device for power transmission line laying comprises: a second ring seat (11); a second rotating shell (12) arranged inside the second ring seat (11) and capable of rotating along the second ring seat (11), a cable passage being formed in the middle of the second rotating shell (12); a cutter (13) arranged at one end of the cable passage and provided with at least one group, the cutting edge of the cutter (13) being opposite to the center of the cable passage; a driving assembly arranged at one side of the second ring seat (11) and used for driving the cutter (13) to rotate circumferentially along the cable passage and move towards the center of the cable passage, so as to perform a ring cutting operation on the cable in the cable passage; The cable shearing device for power transmission line laying further comprises: a second driving gear (21) arranged at one side of the second rotating shell (12) and engaged with the second driving gear (21); a second driven bevel gear (20) arranged at one side of the central shaft of the second driving gear (21) and capable of responding to the driving of the driving assembly to generate an action of driving the cutter (13) to rotate circumferentially along the cable passage; The cable shearing device for power transmission line laying further comprises: a second screw guide rail (43) arranged inside the second rotating shell (12) and fixedly connected with the cutter (13) through a sliding table of the second screw guide rail (43); a second driving shaft (42) arranged at one end of the second screw guide rail (43) and used for driving the screw of the second screw guide rail (43) to rotate, the second driving shaft (42) being provided with a second driven gear (26) at one end, the second driven gear (26) being capable of responding to the driving of the driving assembly to generate an action of driving the cutter (13) to move towards the center of the cable passage; The driving assembly comprises: a third ring seat (14) arranged at one side of the second ring seat (11); a driving bevel gear (17) arranged at one side of the third ring seat (14) and engaged with the second driven bevel gear (20) to drive the cutter (13) to rotate circumferentially along the cable passage; a rack module (24) arranged in a split mode at one side of the inner ring of the third ring seat (14) and provided with a second track groove (32) at the back of the rack module (24); a driven rack (31) arranged at the other side of the inner ring of the third ring seat (14) and capable of sliding along the second track groove (32) to push out one or more rack modules (24) to enable the rack module (24) to be engaged with the second driven gear (26) to drive the cutter (13) to move towards the center of the cable passage.

2. The power transmission line laying cable shearing apparatus according to claim 1, characterized by Further comprising: a first ring seat (6) arranged at the other side of the third ring seat (14); a first rotating shell (7) arranged inside the first ring seat (6) and capable of rotating along the first ring seat (6), a clamping passage being formed in the middle of the first rotating shell (7); a clamping arm (9) arranged inside the clamping passage and provided with at least one group, the clamping arm (9) being capable of rotating circumferentially along the clamping passage and moving towards the center of the clamping passage in response to the driving of the driving assembly to clamp the cable horizontally against the curvature of the cable; a scraper (10) arranged at least at one side of the clamping arm (9) and extending relative to the clamping surface of the clamping arm (9) to enable the scraper (10) to rotate and move towards the center along with the clamping arm (9).

3. The power transmission line laying cable shearing apparatus according to claim 2, characterized by Further comprising: The first driving gear (19) is arranged on one side of the first driving gear disc (22) and meshes with the first driving gear disc (22); The first driven bevel gear (18) is arranged 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 along the clamping channel.

4. The power transmission line laying cable shearing apparatus according to claim 2, characterized by Further comprising: The first lead screw guide rail (35) is arranged inside the first rotating shell (7) and at least one set is arranged, and the sliding table of the first lead screw guide rail (35) is fixedly connected with the clamping arm (9); The first driving shaft (40) is arranged at one end of the first lead screw guide rail (35) and drives the rotation of the lead screw of the first lead screw guide rail (35), and one end of the first driving shaft (40) is provided with the first driven gear (29), which can mesh with one or more of the rack module (24) to generate the action of driving the clamping arm (9) to move to the center of the clamping channel.

5. The power transmission line laying cable shearing apparatus according to claim 4, characterized by Further comprising: The first prismatic shaft (41) is slidably arranged on the axial direction of the first driving shaft (40) and is fixedly connected with the first driven gear (29); The first electric push rod (33) is arranged on one side of the first prismatic shaft (41) and is provided with a first push handle (34) at the telescopic end, and the other end of the first push handle (34) is rotatably arranged on the first prismatic shaft (41), and after the clamping arm (9) clamps the cable, the first electric push rod (33) drives the first driven gear (29) to move away from the rack module (24).

6. The power transmission line laying cable shearing apparatus according to claim 5, characterized by Further comprising a deflection structure arranged below the clamping path of the clamping arm (9) for driving the clamping arm (9) to adapt to the curvature change of the cable, wherein the deflection structure comprises: The annular sliding table (2) is arranged below the clamping path of the clamping arm (9); The annular guide rail (3) is arranged in the sliding rail of the annular sliding table (2) and is provided with a deflection seat (4) on one side for supporting the clamping arm (9).

7. A method of cutting a cable for stringing a power line, characterized in that, The cable shearing device for power transmission line laying according to claim 6 comprises the following steps: Step one, pass the cable to be sheared through the clamping channel and the cable channel; Step two, based on the control of the driving assembly, on the one hand, drive the clamping arm (9) to rotate along the cable and move to the center of the cable, overcome the cable curvature and clamp the cable horizontally, so that the to-be-cut end of the cable is not affected by the curvature change of the cable, on the other hand, drive the cutter (13) to rotate along the cable and move to the center of the cable, so that the cutter (13) is close to the cable for shearing preparation; Step three, after the clamping arm (9) clamps and fixes the cable horizontally, the driving of the clamping arm (9) by the driving assembly is released, at this time, the driving assembly is continuously driven to drive the cutter (13) to continuously rotate and move to the center, and the cable is gradually cut from the outside to the inside, so that the cable shearing surface remains flat.

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