Positioning module for distribution network hot-line work wire stripping tool

Abstract

The utility model relates to the technical field of electric power facility maintenance, in particular to a positioning module for a distribution network hot-line work wire stripping tool, which comprises a positioning module support connected onto the wire stripping tool, a lead screw rotatably connected onto the positioning module support, the lead screw driven by a positioning motor to rotate, two groups of movably connected holding supports arranged on the lead screw, and two groups of fixing supports arranged on the holding supports. Each group of holding brackets is connected with a corresponding clamping block; the clamping block comprises two groups of clamping teeth which are arranged in parallel, the clamping teeth are provided with V-shaped clamping surfaces, the clamping surfaces are provided with rollers which are rotatably connected, and the plane formed by the rotating axes of the rollers is perpendicular to the axis of the cable. When the cable is clamped and the movement allowance in the radial direction is locked by utilizing the roller with the rotating clamping surface, the cable is allowed to move along the axial direction through the rotating action of the roller, so that the control precision of the clamping force required by the wire stripping tool is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of power facilities maintenance, specifically be used for the positioning module of distribution network live working wire stripping tool. BACKGROUND

[0002] The statements in this part only provide background technical information related to the utility model and do not necessarily constitute prior art.

[0003] Line live wire stripping operation refers to stripping the insulating layer on the surface of the cable without power off, generally cooperating with subsequent lap joint drain wire operation. During wire stripping operation, the operation tool clamps the cable, and then cuts the insulating layer on the surface of the cable by using a cutter or laser. The clamping action can position the position of the cable and make the cutter or laser more effectively play a cutting role.

[0004] However, the positioning module for executing cable clamping in the prior art is difficult to control the ideal clamping force, which is easy to make the clamping force too large. Although it is beneficial to the circumferential cutting of the wire stripping tool, it is not conducive to the axial cutting of the wire stripping tool. Specifically, the wire stripping tool moves linearly along the cable axis direction by using a mechanical arm. During the movement, the cutter or laser on the tool cuts an axial cutting seam on the surface of the cable while moving linearly, thereby facilitating the separation of the subsequent insulating segment and the core. However, the clamping force during cutting is difficult to control. If the clamping force is too large, the mechanical arm cannot drive the tool to move along the cable axis direction. If the clamping force is too small, the positioning function cannot be played. UTILITY MODEL CONTENTS

[0005] In order to solve the technical problems existing in the background art, the utility model provides a positioning module for distribution network live working wire stripping tool. Two groups of clamping blocks are used to clamp the cable, and a rotatable roller is arranged on the clamping teeth of each group of clamping blocks, so that the cable can move along the axial direction while being locked in the radial direction after being clamped, thereby eliminating the need to control the clamping force. At the same time, the clamping teeth on the two groups of clamping blocks are no longer arranged in a traditional opposite manner, but are arranged in an interlaced manner, so that the V-shaped structures on the surfaces of the clamping teeth are alternately arranged on the surface of the cable, thereby playing a better positioning role.

[0006] In order to achieve the above purpose, the utility model adopts the following technical embodiments:

[0007] The utility model provides a positioning module for network with electricity operation wire stripping tool, including the positioning module support of wire stripping tool connection, be equipped with the screw rod of rotary connection on the positioning module support, the screw rod is driven rotation by the positioning motor, be equipped with two groups of the movable connection of holding support on the screw rod, and each group of holding support is connected the corresponding clamping piece, the clamping piece includes two groups of the clamping tooth of parallel arrangement, and the clamping tooth has the clamping surface of V type, be equipped with the rotary connection of drum on the clamping surface, and the plane formed by the rotation axis of drum is perpendicular to the cable axis.

[0008] As a further implementation, the positioning motor is located on one side of the positioning module support, and a carabiner is provided on the other side of the positioning module support.

[0009] As a further implementation, the carabiner is connected to one end of the screw rod, and the other end of the screw rod is connected to the output shaft of the positioning motor.

[0010] As a further implementation, a guide shaft is provided on the positioning module support, the guide shaft is arranged in parallel with the screw rod, and the guide shaft is slidingly connected to the holding support.

[0011] As a further implementation, the clamping teeth are arranged in parallel on the corresponding clamping piece in the cable axial direction.

[0012] As a further implementation, the drum on each group of clamping teeth has at least two groups, and the axes of the two groups of drums are arranged at an angle to each other to form a V-shaped clamping surface.

[0013] As a further implementation, a support shaft is provided on the clamping surface, and the support shaft is sleeved inside the drum.

[0014] As a further implementation, the support shaft is rotatably connected to the drum through bearings provided at both ends.

[0015] As a further implementation, the clamping piece has two groups, and when the two groups of clamping pieces are arranged oppositely, the clamping teeth on the clamping pieces are staggered with each other.

[0016] As a further implementation, the laser module of the wire stripping tool is located between the two clamping teeth of the same group of clamping pieces.

[0017] Compared with the prior art, the above one or more technical embodiments have the following beneficial effects:

[0018] 1. When the wire stripping tool runs linearly in the cable axial direction, the cable has been clamped, and the radial movement allowance is locked, while the drum on the clamping tooth allows the cable to move in the axial direction through its own rotating action, thereby reducing the clamping force control precision required by the wire stripping tool.

[0019] 2、Not using the traditional clamping teeth opposite setting, but staggered arrangement, so that the V-shaped structure of the clamping tooth surface is alternately arranged on the cable surface. Since the stripping tool is applied to the overhead cable, the straightness may not meet the needs of stripping operation during operation due to environmental factors and thermal stress. The clamping teeth are alternately arranged, so that the cable alternately passes through the V-shaped groove of each clamping tooth after clamping, which can collimate the cable to a certain extent, and is beneficial to control the cutting precision during subsequent circumferential cutting and axial cutting. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings constituting a part of the present application are used to provide further understanding of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation of the present application.

[0021] Figure 1 The structure schematic view of the live working stripping tool with a traveling unit provided by the present application is shown in the figure.

[0022] Figure 2 The structure schematic view of the positioning module in the stripping tool provided by the present application is shown in the figure.

[0023] Figure 3 The partial sectional structure schematic view of the positioning module in the stripping tool provided by the present application is shown in the figure.

[0024] Figure 4 The top view sectional structure schematic view of the positioning module in the stripping tool provided by the present application is shown in the figure.

[0025] Figure 1 In the figure: 1 guide plate; 2 positioning module; 3 rotating module; 4 observation camera; 5 gas supply unit; 6 laser module;

[0026] Figure 2 In the figure: 21 clamping block; 22 positioning motor; 23 lead screw; 24 clamping support; 25 guide shaft; 26 positioning module support; 27 hook ring;

[0027] Figure 3 In the figure: 211 clamping tooth; 212 support shaft; 213 roller; 214 bearing; 215 positioning ring. DETAILED DESCRIPTION

[0028] The present application will be further described below in combination with the drawings and embodiments.

[0029] It should be pointed out that the following detailed description is exemplary and is intended to provide further description of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0030] As introduced in the background, the existing live working stripping tool, the positioning module for cable clamping is difficult to control the ideal clamping force, easy to make the clamping force too large, although it is conducive to the circumferential cutting of the stripping tool, but it is not conducive to the axial cutting of the stripping tool.

[0031] Therefore, the following embodiments give the positioning module for the live working stripping tool of distribution network, using two groups of clamping blocks to clamp the cable, and setting the rotatable roller on the clamping teeth of each group of clamping blocks, so as to allow the cable to move along the axial direction while being locked in the radial direction after being clamped, so as to no longer need to control the clamping force; at the same time, the clamping teeth on the two groups of clamping blocks are no longer arranged in the traditional opposite way, but are staggered with each other, so that the V-shaped structure on the surface of the clamping teeth is alternately arranged on the surface of the cable, thereby playing a better positioning role.

[0032] As shown in Figure 1 The stripping tool includes two groups of guide plates 1 arranged side by side, a rotating module 3 is arranged between the two groups of guide plates 1, a gas supply unit 5 is arranged on one side of the rotating module 3, and a stripping unit is arranged on the other side, the stripping unit includes a positioning module 2 and a laser module 6, and the bottom of the rotating module 3 is connected with a traveling module 9.

[0033] The positioning module 2 generates a certain clamping force on the cable through the lead screw driven by the motor and the two groups of clamping blocks movably connected on the lead screw, stabilizes the relative position of the cable and the laser beam, and does not hinder the relative movement between the tool and the cable, and at the same time, after clamping the cable, the outer diameter of the cable can be determined, and a certain degree of collimation effect can be generated on the cable, so as to realize the positioning of the cable.

[0034] The rotating unit 3 drives the whole tool body to rotate around the cable, and cooperates with the laser module 6 to perform circumferential cutting. The rotating unit 3 is connected with the traveling unit, and the traveling unit can be a mechanical arm, which drives the whole tool to move along the axial direction of the cable to obtain the axial cutting seam.

[0035] The laser module 6 has two groups arranged oppositely, which is used to emit laser to cut the insulating layer of the cable, and the cutting blade is used to make the insulating fragments cut off from the core.

[0036] One of the two groups of laser modules 6 is provided with an observation camera 4, which is used to observe the position of the overhead cable during lifting of the tool, so as to facilitate the worker to accurately place the tool on the overhead cable.

[0037] The gas supply unit 5 includes a gas pump connected in the shell, which is used to generate gas and send it into the laser module 6 through the pipeline, so as to blow out the gas while cutting the laser, and blow away the molten material from the cutting point.

[0038] In this embodiment, the specific structure of the rotating module 3, the air supply unit 5, the laser module 6 and the tool changing mechanism is not limited.

[0039] As shown in Figure 2 , the positioning module 2 includes a lead screw 23 driven by a positioning motor 22, at least two groups of clamping blocks 21 are movably connected to the lead screw 23, the surface of the lead screw 23 has a bidirectional thread, at least one guide shaft is arranged parallel to the lead screw 23, when the positioning motor 22 rotates, the two groups of clamping blocks 21 are guided by the guide shaft 25 and driven by the lead screw 23 to move closer to each other or move away from each other. The clamping action of the two groups of clamping blocks 21 on the cable is utilized, when the clamping force exceeds the set value, the two groups of clamping blocks 21 stop moving, according to the initial position of the clamping blocks and the position when the movement stops, the distance between the two groups of clamping blocks 21 is determined, and then the outer diameter of the cable is obtained, and positioning is realized.

[0040] In this embodiment, the positioning module support 26 is connected with the rotating module 3 of the stripping tool, the positioning motor 22 is fixed on one side of the positioning module support 26, the output shaft of the positioning motor 22 is connected with one end of the lead screw 23, the lead screw 23 is movably connected with the two groups of clamping supports 24, and the clamping supports 24 are connected with the corresponding clamping blocks 21.

[0041] As a further embodiment, the clamping support 24 is provided with a movably connected guide shaft 25, and this embodiment has two groups of guide shafts 25 arranged on both sides of the lead screw 23 and arranged in parallel with the lead screw 23. The clamping support 24 plays the role of a slider in a ball screw structure, and under the guidance of the guide shaft 25 and the driving action of the lead screw 23, the two groups of clamping blocks 21 together with the corresponding clamping supports 24 move closer to each other or move away from each other, and the clamping positioning is realized by the mutual approach of the clamping blocks 21.

[0042] As a further embodiment, the other side of the positioning module support 26 is provided with a carabiner 27, and the carabiner 27 is connected to the other end of the lead screw 23. When an abnormality occurs, the carabiner 27 can be manually rotated to drive the lead screw 23 to reverse, and then the clamping support 24 is opened, which is convenient for abnormal rescue of the tool.

[0043] The surface of the clamping block contacting the cable has a rolling surface, which allows the tool body to move in the axial direction of the cable after the clamping block clamps the cable. Specifically, as shown in Figure 3 , the clamping block 21 includes two groups of clamping teeth 211 arranged in parallel along the axial direction of the cable, the clamping teeth 211 have a V-shaped clamping surface, a support shaft 212 is arranged on the clamping surface, the support shaft 212 is sleeved in the inside of a roller 213, and the roller 213 is rotated through the bearings 214 at both ends of the support shaft 212. The plane formed by the two roller 213 rotation axes is perpendicular to the cable axis.

[0044] As a further embodiment, the support shaft 212 is provided with a positioning ring 215, which is used to provide a gap between the bearing 214 and the clamping teeth 211, so as to support the rotation of the bearing 214.

[0045] As shown in Figure 4 The laser module 6 is located between two clamping teeth 211 of the same set of clamping blocks 21, which is beneficial to ensure the stability of the laser cable operation position, and makes the laser module 6 perform laser cutting in the area where the cable is collimated.

[0046] As shown in Figure 4 The two sets of clamping blocks 21 are arranged oppositely, and the corresponding clamping teeth 211 are staggered with each other. In this embodiment, the traditional clamping teeth are not arranged oppositely, but are arranged staggeredly, so that the V-shaped structures on the surfaces of the clamping teeth 211 are alternately arranged on the surface of the cable. When the stripping tool runs linearly along the axial direction of the cable, the rotation of the roller 213 supports the linear motion of the tool, and at the same time, the cable alternately passes through the V-shaped grooves of each clamping tooth 211. Since the cable has been clamped at this time, the movement allowance in the radial direction is locked, and the roller on the clamping tooth allows the cable to move in the axial direction, so that the clamping force control precision required by the stripping tool is reduced.

[0047] At the same time, since the stripping tool is applied to the overhead cable, the straightness during operation may not meet the requirements of stripping operation due to environmental factors and thermal stress. The clamping teeth 211 are arranged alternately, which can produce a certain degree of collimation effect on the cable after clamping, and is beneficial to control the cutting precision during subsequent circumferential cutting and axial cutting.

[0048] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A positioning module for a live-line tool for distribution network stripping, characterized in that, The positioning module support is connected to the stripping tool, the positioning module support is provided with a rotatingly connected lead screw, the lead screw is driven to rotate by a positioning motor, the lead screw is provided with two groups of clamping supports connected movably, each group of clamping supports is connected to a corresponding clamping block; the clamping block comprises two groups of clamping teeth arranged side by side, the clamping teeth have a V-shaped clamping surface, the clamping surface is provided with a rotatably connected roller, and a plane formed by the rotating axis of the roller is perpendicular to the cable axis.

2. The positioning module for a live-line tool stripping tool of claim 1, wherein, The positioning motor is located on one side of the positioning module support, and a carabiner is arranged on the other side of the positioning module support.

3. The positioning module for a live-line tool stripping tool of claim 2, wherein, The carabiner is connected to one end of the lead screw, and the other end of the lead screw is connected to the output shaft of the positioning motor.

4. The positioning module for a live-line tool stripping tool of claim 1, wherein, The positioning module support is provided with a guide shaft, the guide shaft is arranged in parallel with the lead screw, and the guide shaft is slidably connected to the clamping support.

5. The positioning module for a live-line tool stripping tool of claim 1, wherein, The clamping teeth are arranged side by side on the corresponding clamping block in the cable axial direction.

6. The positioning module for a live-line tool stripping tool of claim 1, wherein, The rollers on each group of clamping teeth have at least two groups, the axes of the two groups of rollers are arranged obliquely to each other to form a V-shaped clamping surface.

7. The positioning module for a live-line tool stripping tool of claim 1, wherein, The clamping surface is provided with a support shaft, and the support shaft is sleeved in the roller.

8. The positioning module for a live-line tool stripping tool of claim 7, wherein, The support shaft is rotatably connected to the roller through bearings arranged at both ends.

9. The positioning module for a live-line tool stripping tool of claim 1, wherein, The clamping block has two groups, and when the two groups of clamping blocks are arranged oppositely, the clamping teeth on the clamping blocks are staggered.

10. The positioning module for a live-line tool stripping tool of claim 1, wherein, The laser module of the stripping tool is located between the two clamping teeth of the same group of clamping blocks.

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