Cable cutting device for power construction

Abstract

The invention discloses a cable cutting device for electric power construction, and relates to the technical field of cable cutting, the cable cutting device comprises a rotating disc which is rotatably arranged, and the rotating disc is provided with an operation position close to a cable in the circumferential direction; an outer skin ripping assembly capable of ripping an outer skin of a preset length in the length direction of the cable, an outer skin cutting assembly capable of cutting two ends of the outer skin of the preset length in the radial direction of the cable and a cable cutting assembly capable of cutting the cable from the middle of the outer skin of the preset length are sequentially arranged on the rotating disc in the circumferential direction. According to the cable cutting device for power construction, in the rotating process of the rotating disc, the outer skin ripping assembly, the outer skin cutting assembly and the cable cutting assembly sequentially rip the outer skin of a cable, cut off the ripped outer skin of the cable and cut off the cable from the middle of the part, with the ripped outer skin, of the cable; therefore, the end part of the cable can be peeled in the cable cutting process, the subsequent wiring operation is facilitated, and the operation efficiency in the power construction process is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cable cutting, in particular to a cable cutting device for electric power construction. Background Art

[0002] In the field of power construction, the laying and connection of cables are the basic and key work links. With the continuous development of power infrastructure construction, including the increasing number of projects such as urban power grid transformation, new industrial park power supply facility construction and power transmission line construction in remote areas, a large number of cables need to be cut according to actual construction requirements to achieve the appropriate length for connecting electrical equipment, wiring between poles, etc.

[0003] The patent with announcement number CN213079895U discloses a cable cutting device, which includes a cutting mechanism, wherein the cutting mechanism includes a first fixing frame, a first cylinder seat is fixedly mounted on the first fixing frame, a first cylinder is fixedly mounted on the first cylinder seat, a knife body fixing block is fixedly connected to the lower end of the first cylinder, and a cutting knife is fixedly mounted on the lower end of the knife body fixing block. This cable cutting device can cut a large number of cables at the same time, with high overall efficiency, and when cutting, the operator does not need to perform too much manual operation, further saving manpower, and during the cutting process, the operator does not need to be in close contact with the cutting knife, avoiding the operator from being accidentally injured by the cutting knife, and ensuring the operator's own safety.

[0004] In the prior art such as the above, the dedicated cable cutting device usually only cuts the cable, but the cut cable needs to be stripped at the end of the cable during subsequent wiring, and the operation efficiency needs to be improved. Summary of the invention

[0005] The object of the present invention is to provide a cable cutting device for power construction to solve the deficiencies in the above-mentioned prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cable cutting device for power construction, comprising a rotatable rotating disk, the rotating disk having a working position close to the cable in the circumferential direction, and the rotating disk having a skin cutting component which can be arranged in sequence along the circumference at the working position: a skin cutting component which can cut a preset length of skin along the length direction of the cable, a skin cutting component which can cut the two ends of the preset length of skin along the radial direction of the cable, and a cable cutting component which can cut the cable from the middle of the preset length of skin.

[0007] Furthermore, the skin cutting assembly includes two symmetrically arranged skin cutting units, each skin cutting unit includes a first axial sliding portion elastically connected to the rotating disk along the axial direction of the rotating disk, a first wedge block is fixedly connected to the first axial sliding portion, a first radial sliding portion is elastically connected to the rotating disk along the radial direction of the rotating disk on the first axial sliding portion, and a long knife is rotatably connected to the first radial sliding portion along an elastic rotating shaft parallel to the axial direction of the rotating disk; when the skin cutting assembly passes through the working position, the first wedge blocks of the two skin cutting units are respectively squeezed by the extrusion piece to make the two long knives close together to cut the skin of a preset length.

[0008] Furthermore, a first compression spring is arranged between the first axial sliding parts of the two outer skin cutting units, and both ends of the first compression spring are respectively in contact with one of the first axial sliding parts.

[0009] Furthermore, a first tension spring is arranged between the first axial sliding part and the first radial sliding part of each outer skin cutting unit, and one end of the first compression spring close to the center of the rotating disk is hooked on the hook on the first axial sliding part, and the other end is hooked on the hook on the first radial sliding part.

[0010] Furthermore, the long knife of each skin cutting unit is rotatably connected to the first radial sliding part through its first knife support, and a first torsion spring is sleeved on the rotating shaft between the first knife support and the first radial sliding part, one end of the first torsion spring is connected to the first knife support, and the other end is connected to the first radial sliding part. When the first torsion spring releases its elastic force, it drives the corresponding long knife to rotate in the clockwise direction of the rotating disk.

[0011] Furthermore, the skin cutting assembly includes two symmetrically arranged skin cutting units, each skin cutting unit includes a second axial sliding portion elastically slidingly connected to the rotating disk along the axial direction of the rotating disk, a second wedge block is fixedly connected to the second axial sliding portion, a second radial sliding portion is elastically slidingly connected to the second axial sliding portion along the radial direction of the rotating disk, a cutting knife group is elastically rotatably connected to the second radial sliding portion along a rotating shaft parallel to the axial direction of the rotating disk, and the cutting knife group includes two cutting knives arranged in parallel and at intervals; when the skin cutting assembly passes through the working position, the second wedge blocks of the two skin cutting units are respectively squeezed by the extrusion piece to make the two cutting knife groups close together to cut off the two ends of the skin of preset length.

[0012] Furthermore, a connecting rod is connected between each of the cutting knife groups, and the cutting knife group is elastically rotatably connected to the second radial sliding part through the connecting rod, and the blade of each of the cutting knives is V-shaped.

[0013] Furthermore, the cable cutting assembly includes two swing arms, one end of the two swing arms are elastically rotatably connected to the rotating disk, and the other ends are fixedly installed with cutters, and the two swing arms are respectively provided with wedge-shaped structures; when the cable cutting assembly passes through the operating position, the two wedge-shaped structures are respectively squeezed by the extrusion piece to make the two cutters close together to cut the cable from the middle of the preset length of the outer skin.

[0014] Furthermore, the extrusion member includes two rotating wheels which are arranged on both sides of the working position for self-rotation.

[0015] Furthermore, an annular cable groove for accommodating cables is provided on the peripheral side surface of the rotating disk.

[0016] In the above technical scheme, the present invention provides a cable cutting device for power construction. During the rotation of the rotating disk, the outer skin cutting component, the outer skin cutting component and the cable cutting component successively cut the outer skin of the cable, cut off the cut outer skin of the cable, and cut the cable from the middle of the cut outer skin part of the cable, thereby realizing the stripping of the cable end during the cable cutting process, thereby facilitating subsequent wiring operations and improving the operating efficiency during the power construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A front view of the overall structure provided by an embodiment of the present invention; Figure 2 The overall structure of the embodiment of the present invention is shown in FIG. Figure Ⅰ ; Figure 3 The overall structure of the embodiment of the present invention is shown in FIG. Figure II ; Figure 4 The overall structure of the embodiment of the present invention is shown in FIG. Figure III ; Figure 5 A schematic diagram of the structure of the outer skin cutting assembly provided in an embodiment of the present invention; Figure 6 A schematic diagram of the structure of a skin cutting unit provided in an embodiment of the present invention; Figure 7 A structural cross-sectional view of a skin cutting unit provided in an embodiment of the present invention; Figure 8 A schematic diagram of the structure of a skin cutting assembly provided in an embodiment of the present invention; Fig. 9 A schematic diagram of the structure of a skin cutting unit provided in an embodiment of the present invention; Fig.10 A schematic structural diagram of a cable cutting assembly provided in an embodiment of the present invention.

[0019] Description of reference numerals: 1. Rotating disk; 11. Annular cable groove; 2. Central axis; 3. Fixed base; 4. Shaft; 5. Rotating wheel; 6. Outer skin cutting assembly; 61. First axial sliding part; 62. First wedge block; 63. First radial sliding part; 64. First knife support; 65. Long knife; 66. First compression spring; 67. First tension spring; 68. First torsion spring; 69. First limiter; 7. Outer skin cutting assembly; 71. Second axial sliding part; 72. Second wedge block; 73. Second radial sliding part; 74. Connecting rod; 75. Second knife support; 76. Cutting knife; 77. Second compression spring; 78. Second tension spring; 79. Second torsion spring; 710. Second limiter; 8. Cable cutting assembly; 81. Swing arm; 82. Cutting knife; 83. Wedge structure; 84. Third compression spring; 85. Fixed block; 86. Screw. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] See also Figure 1-Figure 10 A cable cutting device for power construction provided by an embodiment of the present invention includes a rotating disk 1, which is rotatably connected to a fixed base 3 via a central axis 2. The rotating disk 1 is driven by a servo motor via a reducer. An annular cable groove 11 is provided on the peripheral side surface of the rotating disk 1. The linear cable to be cut passes through the annular cable groove 11 and is tangent to the bottom of the annular cable groove 11. During the rotation of the rotating disk 1 along the central axis 2, any position on the outer circle in the circumferential direction of the rotating disk 1 will be close to the cable at the same spatial position, which is called the working position. A conveying wheel group or a conveying belt group is provided at the upstream position of the cable to be cut, which is used to convey the cable to be cut to the rotating disk 1, specifically, to convey the position to be cut of the cable to be cut to the working position.

[0022] The outer skin cutting component 6, the outer skin cutting component 7 and the cable cutting component 8 are arranged in the circumferential direction of the rotating disk 1, and the three components are preferably arranged at an angle of 120° to each other. In this embodiment, the arrangement order of the three components is the outer skin cutting component 6, the outer skin cutting component 7 and the cable cutting component 8. When cutting the cable, the order of the three components passing through the working position is the outer skin cutting component 6, the outer skin cutting component 7 and the cable cutting component 8. During the rotation of the rotating disk 1, the outer skin cutting component 6 can cut the outer skin of a preset length along the length direction of the cable when passing through the working position, and the outer skin cutting component 7 cuts off the two ends of the outer skin of the preset length along the radial direction of the cable. Finally, the cable cutting component 8 cuts the cable as a whole from the middle of the outer skin of the preset length.

[0023] In other preferred embodiments, the arrangement order of the three can be determined as the outer skin cutting component 7, the outer skin cutting component 6 and the cable cutting component 8. When the cable is cut, the order in which the three pass through the working position is the outer skin cutting component 7, the outer skin cutting component 6 and the cable cutting component 8.

[0024] See also Figure 2 , Figure 5-Figure 7The outer skin cutting assembly 6 includes two symmetrically arranged outer skin cutting units, and the symmetry plane is a plane parallel to the end face of the rotating disk 1 and passing through the midpoint of the axis of the rotating disk 1. Each outer skin cutting unit includes a first axial sliding portion 61 that is elastically slidably connected to the rotating disk 1 along the axial direction of the rotating disk 1, and a first limiter 69 is screwed on the rotating disk 1. The first limiter 69 is in the shape of a folded plate and can prevent the first axial sliding portion 61 from sliding off the rotating disk 1; a first wedge block 62 is fixedly connected to the first axial sliding portion 61, and a first radial sliding portion 63 is elastically slidably connected to the first axial sliding portion 61 along the radial direction of the rotating disk 1. Specifically, a first tension spring 67 is provided between the first axial sliding portion 61 and the first radial sliding portion 63, and one end of the first compression spring 66 close to the center of the rotating disk 1 is hooked on the hook on the first axial sliding portion 61, and the other end is hooked on the hook on the first radial sliding portion 63; the first radial sliding portion A long knife 65 is rotatably connected to an elastic rotating shaft parallel to the axial direction of the rotating disk 1 on 63. Specifically, the long knife 65 is installed on the first knife support 64. The long knife 65 is rotatably connected to the first radial sliding part 63 through the first knife support 64. A first torsion spring 68 is sleeved on the rotating shaft between the first knife support 64 and the first radial sliding part 63. One end of the first torsion spring 68 is connected to the first knife support 64, and the other end is connected to the first radial sliding part 63. When the first torsion spring 68 releases its elastic force, it drives the long knife 65 to rotate in the clockwise direction of the rotating disk 1. There is a rotation limit between the long knife 65 and the first radial sliding part 63, that is, the long knife 65 rotates in the clockwise direction of the rotating disk 1 until the distance between its midpoint and the center of the rotating disk 1 is the shortest, reaching the limit position. A first compression spring 66 is provided between the first axial sliding parts 61 of the two outer skin cutting units. The two ends of the first compression spring 66 are respectively in contact with one first axial sliding part 61. When the elastic force of the first spring is released, the two outer skin cutting units move in reverse and apart.

[0025] An extrusion member is arranged near the working position, and the extrusion member includes two rotating wheels 5 symmetrical about the above-mentioned symmetry plane. The two rotating wheels 5 are rotatably connected to two shafts 4 respectively, and the two shafts 4 are fixedly connected to the fixed base 3. The two rotating wheels 5 are distributed on both sides of the working position.

[0026] During the rotation of the rotating disk 1, when the outer skin cutting assembly 6 passes the working position, the long knives 65 and the first radial sliding part 63 of the two outer skin cutting units are in the initial state, the long knives 65 are parallel to the cable, and the two first wedge blocks 62 are respectively squeezed by the rotating wheel 5, so that the two long knives 65 are closed to cut the outer skin of the cable of a preset length. The outer skin of the preset length is cut in half, and the first compression spring 66 is also compressed to store energy. Since the squeezing of the first wedge block 62 by the rotating wheel 5 and the cutting of the cable sheath by the long knife 65 are both process quantities, the rotating disk 1 is continuously rotating during the process, and the cable sheath will keep the long knife 65 in the incision, thereby causing the angle of the long knife 65 to continuously deflect, and the distance between the long knife 65 and the first axial sliding portion 61 will continue to increase, so that the first torsion spring 68 and the first tension spring 67 are both elastically deformed and store energy. When the first wedge block 62 completely passes through the rotating wheel 5, the elastic force of the first compression spring 66 is released, thereby quickly pushing open the two sheath cutting units, and the long knife 65 is separated from the incision of the cable sheath. The first torsion spring 68 and the first tension spring 67 quickly release their force, so that the first radial sliding portion 63 and the long knife 65 are both reset to their initial states.

[0027] See also Figure 3 , Figure 8 , Fig. 9The outer skin cutting assembly 7 includes two outer skin cutting units symmetrically arranged about the above-mentioned symmetry plane, each outer skin cutting unit includes a second axial sliding portion 71 elastically slidably connected to the rotating disk 1 along the axial direction of the rotating disk 1, and a second limiting member 710 in the shape of a folded plate is screwed on the rotating disk 1, and the second limiting member 710 can prevent the second axial sliding portion 71 from sliding off the rotating disk 1; a second wedge block 72 is fixedly connected to the second axial sliding portion 71, and a second radial sliding portion 73 is elastically slidably connected to the second axial sliding portion 71 along the radial direction of the rotating disk 1, specifically, a second tension spring 78 is arranged between the second axial sliding portion 71 and the second radial sliding portion 73, and one end of the second compression spring 77 close to the center of the rotating disk 1 is hooked on the hook on the second axial sliding portion 71, and the other end is hooked on the hook on the second radial sliding portion 73; a cutting knife group is elastically rotatably connected to the second radial sliding portion 73 along a rotating shaft parallel to the axial direction of the rotating disk 1, and the cutting knife group includes two cutting knives 76 arranged in parallel and at intervals, and the blade of each cutting knife 76 is V-shaped. A connecting rod 74 is connected between each cutting knife group, and each cutting knife 76 is installed on the corresponding second knife holder 75. The cutting knife group is elastically connected to the second radial sliding part 73 through the connecting rod 74. The connecting rod 74 connects the two knife holders. A second torsion spring 79 is sleeved on the rotating shaft between the connecting rod 74 and the second radial sliding part 73. One end of the second torsion spring 79 is connected to the connecting rod 74, and the other end is connected to the second radial sliding part 73. When the second torsion spring 79 releases its elastic force, it drives the connecting rod 74 and the cutting knife group to rotate in the clockwise direction of the rotating disk 1. There is a rotation limit between the connecting rod 74 and the second radial sliding part 73, that is, the connecting rod 74 rotates in the clockwise direction of the rotating disk 1 until the distance from its midpoint to the center of the rotating disk 1 is the shortest, and the limit position is reached. The two cutting knives 76 of the two skin cutting units correspond to each other, and the corresponding two cutting knives 76 can be misaligned and fitted when they are closed together. A second compression spring 77 is provided between the second axial sliding parts 71 of the two outer skin cutting units. Both ends of the second compression spring 77 abut against one second axial sliding part 71 respectively. When the elastic force of the second spring is released, the two outer skin cutting units move in reverse and apart.

[0028] During the rotation of the rotating disk 1, when the outer skin cutting assembly 7 passes the working position, the second wedge blocks 72 of the two outer skin cutting units are squeezed by the rotating wheel 5 respectively, so that the two cutting knife assemblies are closed, thereby cutting off the two ends of the preset length of the outer skin of the cable, and at the same time the second compression spring 77 is also compressed to store energy. The second wedge block 72 is squeezed by the rotating wheel 5, and the two ends of the preset length of the outer skin of the cable by the cutting knife 76 are both process quantities. During the process, the rotating disk 1 is continuously rotating, and the outer skin of the cable will cause the cutting knife 76 to remain in the cutting opening, thereby causing the cutting knife group angle to continuously deflect, and the distance between the cutting knife group and the second axial sliding portion 71 will continue to increase, and the second radial sliding portion 73 slides away from the center of the rotating disk 1 relative to the second axial sliding portion 71, so that the second torsion spring 79 and the second tension spring 78 are both elastically deformed and store energy. When the second wedge block 72 completely passes through the rotating wheel 5, the elastic force of the second compression spring 77 is released, thereby quickly pushing open the two outer skin cutting units, and the cutting knife 76 is separated from the cutting opening of the cable outer skin. The second torsion spring 79 and the second tension spring 78 quickly release their force, so that the second radial sliding portion 73 and the cutting knife 76 are quickly reset.

[0029] See also Figure 4 , Fig.10 The cable cutting assembly 8 includes two swing arms 81, one end of each of the two swing arms 81 is elastically rotatably connected to the rotating disk 1, and the other end is fixedly mounted with a cutter 82, and the two swing arms 81 are respectively provided with a wedge structure 83. Specifically, a third compression spring 84 is provided between the two swing arms 81, and both ends of the third compression spring 84 are respectively connected to one swing arm 81. A third limiter for limiting the excessive rotation and separation of the two swing arms 81 is also fixedly mounted on the rotating disk 1, and the third limiter includes a fixed block 85 screwed on the rotating disk 1, and both ends of the fixed block 85 are respectively screwed with screws 86, and the ends of the two screws 86 are respectively in contact with the outer side of one swing arm 81, and the maximum separation limit of the two swing arms 81 can be adjusted by adjusting the screwing degree of the screw 86.

[0030] During the rotation of the rotating disk 1, when the cable cutting assembly 8 passes the working position, the two wedge-shaped structures 83 are squeezed by the rotating wheel 5 to close the two cutters 82. The two cutters 82 form a shearing fit to cut the cable from the middle of the preset length of the outer sheath. After the cable is cut, the outer sheath at the end of the cable is also removed, even if the cut outer sheath is still adhered to the cable. The electrician can easily tear off the outer sheath adhered to the cable when wiring.

[0031] In the present invention, during the rotation of the rotating disk 1, the outer skin cutting component 6, the outer skin cutting component 7 and the cable cutting component 8 successively cut the outer skin of the cable, cut off the cut outer skin of the cable, and cut the cable from the middle of the cut outer skin part of the cable, thereby achieving the stripping of the end of the cable during the cable cutting process, thereby facilitating subsequent wiring operations and improving the operating efficiency during the power construction process.

[0032] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cable cutting device for electric power construction, characterized in that: include The rotating disk is rotatably arranged, and has an operating position close to the cable in the circumferential direction of the rotating disk. The rotating disk is provided with the following parts in the operating position in sequence along the circumferential direction: A sheath cutting component for cutting a preset length of the sheath along the length direction of the cable; A sheath cutting component for cutting off the sheath at both ends of the preset length along the radial direction of the cable; and A cable cutting assembly is provided for cutting the cable from the middle of the outer sheath of the preset length.

2. A cable cutting device for electric power construction according to claim 1, characterized in that: The skin cutting assembly includes two symmetrically arranged skin cutting units, each skin cutting unit includes a first axial sliding portion elastically connected to the rotating disk along the axial direction of the rotating disk, a first wedge block is fixedly connected to the first axial sliding portion, a first radial sliding portion is elastically connected to the rotating disk along the radial direction of the rotating disk on the first axial sliding portion, and a long knife is rotatably connected to the first radial sliding portion along an elastic rotating shaft parallel to the axial direction of the rotating disk; when the skin cutting assembly passes through the working position, the first wedge blocks of the two skin cutting units are respectively squeezed by the extrusion piece to make the two long knives close together to cut the skin of a preset length.

3. A cable cutting device for electric power construction according to claim 2, characterized in that: A first compression spring is arranged between the first axial sliding parts of the two outer skin cutting units, and two ends of the first compression spring are respectively in contact with one of the first axial sliding parts.

4. A cable cutting device for electric power construction according to claim 2, characterized in that: A first tension spring is arranged between the first axial sliding part and the first radial sliding part of each outer skin cutting unit, and one end of the first compression spring close to the center of the rotating disk is hooked on the hook on the first axial sliding part, and the other end is hooked on the hook on the first radial sliding part.

5. A cable cutting device for electric power construction according to claim 2, characterized in that: The long knife of each skin cutting unit is rotatably connected with the first radial sliding part through its first knife support, and a first torsion spring is sleeved on the rotating shaft between the first knife support and the first radial sliding part, one end of the first torsion spring is connected to the first knife support, and the other end is connected to the first radial sliding part. When the first torsion spring releases its elastic force, the corresponding long knife is driven to rotate in the clockwise direction of the rotating disk.

6. A cable cutting device for electric power construction according to claim 1, characterized in that: The skin cutting assembly includes two symmetrically arranged skin cutting units, each skin cutting unit includes a second axial sliding portion elastically connected to the rotating disk along the axial direction of the rotating disk, a second wedge block is fixedly connected to the second axial sliding portion, a second radial sliding portion is elastically connected to the second axial sliding portion along the radial direction of the rotating disk, a cutting knife group is elastically rotatably connected to the second radial sliding portion along a rotating shaft parallel to the axial direction of the rotating disk, and the cutting knife group includes two cutting knives arranged in parallel and at intervals; when the skin cutting assembly passes through the working position, the second wedge blocks of the two skin cutting units are respectively squeezed by the extrusion piece to make the two cutting knife groups close together to cut off the two ends of the skin of a preset length.

7. A cable cutting device for electric power construction according to claim 6, characterized in that: A connecting rod is connected between each of the cutting knife groups, and the cutting knife group is elastically rotatably connected with the second radial sliding part through the connecting rod, and the blade of each of the cutting knives is V-shaped.

8. A cable cutting device for electric power construction according to claim 1, characterized in that: The cable cutting assembly includes two swing arms, one end of each of which is elastically rotatably connected to a rotating disk, and the other end of each of which is fixedly mounted with a cutter, and each of the two swing arms has a wedge-shaped structure; when the cable cutting assembly passes through an operating position, the two wedge-shaped structures are squeezed by an extrusion member so that the two cutters are closed to cut the cable from the middle of an outer sheath of a preset length.

9. A cable cutting device for power construction according to claim 2, 6 or 8, characterized in that: The extruder comprises two rotating wheels which are arranged on both sides of the working position.

10. A cable cutting device for electric power construction according to claim 1, characterized in that: An annular cable groove for accommodating cables is provided on the peripheral side surface of the rotating disk.

Images