Medium-voltage power cable steel armor layer removing tool

Abstract

The utility model belongs to the technical field of cable stripping, and particularly relates to a medium-voltage power cable steel armor layer removing tool, which comprises a sleeving piece sleeved on a cable, one side of the sleeving piece is provided with a shearing assembly, the other side of the sleeving piece is provided with a positioning assembly, the positioning assembly comprises a positioning sleeve, and the positioning sleeve is provided with a clamping groove. Two arc-shaped clamping plates are symmetrically arranged in the positioning sleeve, rotating blocks are fixed to the arc-shaped faces of the outer sides of the clamping plates, threaded rods rotationally connected to the rotating blocks penetrate through the side wall of the positioning sleeve and are in threaded connection with the positioning sleeve, and a connecting part is arranged on one side of the positioning sleeve. The cable cutting device has the beneficial effects that a worker can fix the cutting assembly on a cable by arranging the positioning assembly, and when the worker cuts a steel armor layer of the cable, the same part of the cable can be annularly cut by a clamp knife, so that the situation that a cutting opening is irregular due to deflection and dislocation during annular cutting of the clamp knife is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable stripping, in particular to a tool for removing the steel armor layer of a medium-voltage power cable. Background Art

[0002] The steel armor layer in the cable is part of the cable winding layer. During the cable wiring process, the steel armor layer needs to be cut off to ensure the tightness and stability of the cable connection.

[0003] Announcement No. CN218513986U discloses a tool for removing the steel armor layer of a medium-voltage power cable, including a shearing portion, in which a jaw that can be opened and closed and is used to shear the steel armor layer is formed. The jaw rotates around the cable axis under the guidance of a rotating portion and simultaneously performs a circular cut on the steel armor layer. The patent makes the cutting process simple and quick, does not cause damage to other parts of the cable, and no burrs appear on the cut of the steel armor layer.

[0004] However, this patent does not have a device for positioning the cutting part. When the staff performs circular cutting on the cable, the cut mouth is easily deviated and cannot be connected to the previous cutting position. There is a misalignment phenomenon, and the cut mouth of the steel armor layer is irregular. Moreover, when the staff pushes the upper clamp body for shearing, if too much force is used, the upper clamp body will damage the cable in the cable, and there is no special limit device to limit it. Utility Model Content

[0005] The purpose of the utility model is to provide a tool for removing the steel armor layer of a medium-voltage power cable in order to solve the above-mentioned problem.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A tool for removing steel armor of a medium-voltage power cable comprises a fitting mounted on the cable, a shearing assembly being provided on one side of the fitting, a positioning assembly being provided on the other side of the fitting, the positioning assembly comprising a positioning sleeve, two arc-shaped clamping plates being symmetrically arranged in the positioning sleeve, a rotating block being fixed on the arc-shaped surface on the outer side of the clamping plate, a threaded rod rotatably connected to the rotating block passing through the side wall of the positioning sleeve and being threadedly connected to the positioning sleeve, and a connecting component being provided on one side of the positioning sleeve.

[0008] Preferably, the connecting component comprises an annular plate, the annular plate is fixedly connected to the side wall of the positioning sleeve via a plurality of connecting columns, and an annular strip is fixed at a middle position on the inner side of the annular plate.

[0009] Preferably, the set comprises a cylinder, an annular groove for use with the annular strip is provided on the outer wall of the cylinder, a U-shaped connecting plate is fixed to one side of the cylinder, and a circular hole is provided on one side wall of the connecting plate.

[0010] Preferably, the shearing assembly includes a U-shaped shearing frame, the opening of which faces downward and a lower pliers knife with a blade facing upward is fixed at the opening, the two side walls of the upper part of the shearing frame are respectively provided with sliding grooves, and a pressing rod slidably installed in the sliding groove is fixed at both ends of the upper pliers knife, the blade of the upper pliers knife faces downward and the upper end of the upper pliers knife is arranged on the top wall of the shearing frame through a limiting component.

[0011] Preferably, the limiting component includes a through hole opened in the top wall of the shear frame, a threaded column slidably installed in the through hole is fixed on the back of the upper pliers knife, an upper limit nut and a lower limit nut are threadedly sleeved on the threaded column, the upper limit nut is located above the top wall of the shear frame, and the lower limit nut is located below the top wall of the shear frame.

[0012] Preferably, a fixing rod is fixed on the side wall of the shearing frame just below the pressing rod.

[0013] The beneficial effects are: by setting the positioning component, the staff can fix the shearing component to the cable. When the staff cuts the cable steel armor layer, the pliers can make a ring on the same part of the cable to avoid deviation and dislocation of the pliers during ring cutting, which makes the cutting edge irregular; through the limiting component, the staff can adjust the upper limit nut and the lower limit nut according to the thickness of the cable steel armor layer to avoid the staff from cutting the cable inside the cable with excessive force. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a stereoscopic diagram of a tool for removing steel armor of a medium voltage power cable according to the utility model;

[0016] Figure 2 It is a front perspective view of a positioning assembly of a medium voltage power cable steel armor removal tool according to the utility model;

[0017] Figure 3 It is a rear perspective view of a positioning assembly of a medium voltage power cable steel armor removal tool according to the utility model;

[0018] Figure 4 It is a three-dimensional diagram of a set of components of a tool for removing steel armor of a medium-voltage power cable according to the utility model;

[0019] Figure 5 It is a schematic diagram of a cutting assembly of a tool for removing steel armor of a medium-voltage power cable described in the utility model.

[0020] The following are the descriptions of the reference numerals:

[0021] 1. Cable; 2. Positioning sleeve; 21. Clamp; 3. Annular plate; 31. Connecting column; 32. Annular strip; 4. Cylinder; 41. Connecting plate; 42. Annular groove; 5. Shear frame; 51. Lower pliers; 52. Fixing rod; 53. Slide; 6. Threaded column; 61. Upper limit nut; 62. Lower limit nut; 7. Upper pliers; 71. Pressing rod; 8. Threaded rod; 81. Rotating block. DETAILED DESCRIPTION

[0022] The following is a further explanation of the technical solution of the utility model in conjunction with the accompanying drawings:

[0023] like Figure 1-Figure 5 As shown, a tool for removing steel armor of a medium-voltage power cable comprises a set piece which is set on a cable 1, the cable 1 is slidably connected to the set piece, the set piece comprises a cylinder 4, an annular groove 42 is provided on the outer wall of the cylinder 4, a U-shaped connecting plate 41 is fixed to one side of the cylinder 4, a closed part of one side of the connecting plate 41 is fixedly connected to the fixed cylinder, and a circular hole is provided on this side, the cable 1 passes through the cylinder 4 and the circular hole, a shearing component is provided on one side of the set piece, and a positioning component is provided on the other side of the set piece.

[0024] The positioning assembly includes a positioning sleeve 2, in which two arc-shaped clamping plates 21 are symmetrically arranged. A rotating block 81 is fixed on the arc-shaped surface on the outer side of the clamping plate 21. A threaded rod 8 is rotatably connected to the rotating block 81. The threaded rod 8 passes through the side wall of the positioning sleeve 2 and is threadedly connected to the positioning sleeve 2. This arrangement can position the cable 1 passing through. A connecting component is provided on one side of the positioning sleeve 2.

[0025] The connecting component includes an annular plate 3, which is fixedly connected to the side wall of the positioning sleeve 2 through four connecting columns 31. The four connecting columns 31 are evenly fixed on the side wall of an opening of the positioning sleeve 2. An annular strip 32 is fixed at the middle position inside the annular plate 3.

[0026] like Figure 5As shown, the shearing assembly includes a U-shaped shearing frame 5, which is fixedly connected to the two side walls of the connecting plate 41, the opening of the shearing frame 5 is downward, and a lower pliers 51 with a blade facing upward is fixed at the opening, and the lower pliers 51 is located on the inner side of the shearing frame 5, and sliding grooves 53 are respectively provided on the two side walls of the upper part of the shearing frame 5, and pressing rods 71 ​​are respectively slidably installed in the two sliding grooves 53, and the two pressing rods 71 ​​are respectively fixed to the two ends of the upper pliers 7, the blade of the upper pliers 7 is downward, the back of the knife is upward, and the back of the knife 7 is arranged on the top wall of the shearing frame 5 through a limiting component, and a fixing rod 52 is fixed on the side wall of the shearing frame 5 just below the pressing rod 71. This arrangement allows the staff to hold the pressing rod 71 and the fixing rod 52 tightly to cut the steel armor layer of the cable 1.

[0027] The limiting component includes a through hole opened on the top wall of the shear frame 5, in which a threaded column 6 is slidably installed, and the threaded column 6 is fixed on the back of the upper pliers 7. An upper limit nut 61 and a lower limit nut 62 are threadedly sleeved on the threaded column 6. The upper limit nut 61 is located above the top wall of the shear frame 5, and the lower limit nut 62 is located below the top wall of the shear frame 5. This arrangement can limit the depth of the upper pliers 7 cutting the steel armor layer of the cable 1.

[0028] Working principle: When in use, the staff passes the cable 1 through the positioning sleeve 2, the set and the shear frame 5, and then rotates the threaded rod 8, and the threaded rod 8 drives the clamp 21 to position the cable 1. At this time, the cable 1 is located on the blade of the lower pliers 51, and then the staff adjusts the upper limit nut 61 according to the thickness of the steel armor layer of the cable 1. After adjusting to the appropriate position, the staff holds the fixing rod 52 and the pressing rod 71 with their hands and presses hard. When the upper pliers 7 cuts through the steel armor layer of the cable 1, the upper limit nut 61 contacts the upper end of the top wall of the shear frame 5, and then the staff rotates the lower limit nut 62 until it contacts the lower end of the top wall of the shear frame 5. At this time, the upper limit nut 61 and the lower limit nut 62 cooperate to position the upper pliers 7, and then the staff rotates the shear frame 5, and the shear frame 5 makes a circular motion along the annular plate 3 to perform circular cutting on the steel armor layer of the cable 1.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A tool for removing steel armor of a medium voltage power cable, comprising a sheathing member sheathed on a cable (1), a shearing assembly being arranged on one side of the sheathing member, characterized in that: A positioning assembly is provided on the other side of the assembly, the positioning assembly comprising a positioning sleeve (2), two arc-shaped clamping plates (21) are symmetrically provided inside the positioning sleeve (2), a rotating block (81) is fixed on the arc-shaped surface outside the clamping plate (21), a threaded rod (8) rotatably connected to the rotating block (81) passes through the side wall of the positioning sleeve (2) and is threadedly connected to the positioning sleeve (2), and a connecting component is provided on one side of the positioning sleeve (2).

2. A medium voltage power cable steel armor removal tool according to claim 1, characterized in that: The connecting component comprises an annular plate (3), the annular plate (3) being fixedly connected to the side wall of the positioning sleeve (2) via a plurality of connecting columns (31), and an annular strip (32) being fixed at the middle position inside the annular plate (3).

3. A medium voltage power cable steel armor removal tool according to claim 2, characterized in that: The assembly comprises a cylinder (4), an annular groove (42) for use with the annular strip (32) is provided on the outer wall of the cylinder (4), a U-shaped connecting plate (41) is fixed to one side of the cylinder (4), and a circular hole is provided on one side wall of the connecting plate (41).

4. A medium voltage power cable steel armor removal tool according to claim 1, characterized in that: The shearing assembly comprises a U-shaped shearing frame (5), the opening of the shearing frame (5) is downwardly facing and a lower pliers (51) with a blade facing upward is fixed at the opening, two side walls of the upper part of the shearing frame (5) are respectively provided with sliding grooves (53), a pressing rod (71) slidably installed in the sliding groove (53) is fixed to the two ends of the upper pliers (7), the blade of the upper pliers (7) is downwardly facing and the upper end of the upper pliers (7) is arranged on the top wall of the shearing frame (5) through a limiting component.

5. A medium voltage power cable steel armor removal tool according to claim 4, characterized in that: The limiting component comprises a through hole formed in the top wall of the shearing frame (5); a threaded column (6) slidably mounted in the through hole is fixed on the back of the upper pliers (7); an upper limit nut (61) and a lower limit nut (62) are threadedly sleeved on the threaded column (6); the upper limit nut (61) is located above the top wall of the shearing frame (5), and the lower limit nut (62) is located below the top wall of the shearing frame (5).

6. A medium voltage power cable steel armor removal tool according to claim 5, characterized in that: A fixing rod (52) is fixed on the side wall of the shearing frame (5) just below the pressing rod (71).

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