Peeling device for repairing wire of distribution network and use method of peeling device

Abstract

The invention relates to the technical field of distribution network wire repair, in particular to a stripping device for distribution network wire repair and a use method, and the stripping device comprises a clamping sleeve, a clamping assembly, a lifting assembly and a pressure adjusting assembly; a clamping assembly is installed in the clamping sleeve and comprises a clamping block, a connecting rod, a sliding block and a sliding groove. The connecting rod is installed on the outer side face of the clamping block, the sliding block is installed at the other end of the connecting rod, and the sliding groove is formed in the inclined face of the sliding block. The lifting assembly is installed beside the clamping assembly, and the pressure adjusting assembly is installed on the upper portion of the clamping sleeve. The technical problems that for cables with different pipe diameters, a clamping mechanism lacks effective self-adaptive capacity, adjustment is troublesome, even and stable clamping force is difficult to provide, the concentricity between the axis of a fixed distribution network wire and the rotating center of the device is difficult to guarantee, and the deviation of the concentricity directly causes the non-uniform cutting depth and the like are solved.

Description

Technical Field

[0001] This invention relates to the field of power distribution network conductor repair technology, specifically to a stripping device and its usage method for power distribution network conductor repair. Background Technology

[0002] The first step in repairing distribution network conductors is often to strip a certain length of the outer sheath or insulation layer to facilitate subsequent connection, sealing, or reinforcement. Currently, various conductor stripping devices exist for distribution network repair, many employing mechanical clamping and rotary cutting methods. These devices typically secure the conductors with bolts or simple clamp structures. However, these methods often exhibit limitations when dealing with conductors of varying diameters or even those with imperfectly round cross-sections.

[0003] Specifically, existing wire stripping devices suffer from the following technical problems during the stripping process: Their clamping mechanisms lack effective self-adaptability for cables of different diameters, making adjustments cumbersome. Even after fixing, due to limitations in the device's structure or clamping principle, the concentricity between the fixed distribution network conductor axis and the rotation center of the device (especially the cutting component) is difficult to guarantee. This concentricity deviation directly leads to uneven cutting depth. Summary of the Invention

[0004] The technical objective of this invention is to design a stripping device and method for repairing distribution network conductors, to solve the problem that the clamping mechanism lacks effective self-adaptive capability and is cumbersome to adjust for cables of different diameters within a certain range, so that the concentricity between the fixed distribution network conductor axis and the rotation center of the device (especially the cutting component) can be guaranteed during the stripping process.

[0005] To achieve the above-mentioned technical objectives, the present invention provides the following technical solution:

[0006] A stripping device for repairing power distribution network conductors includes a clamping sleeve, a clamping assembly, a lifting assembly, a pressure regulating assembly and a locking assembly, a rotating sleeve, a fixed sleeve and a locking ring;

[0007] The clamping sleeve has an installation groove on its inner side and a movable groove on its outer side. Two circular through holes are provided between the installation groove and the movable groove. The pressure chamber is located on the top of the clamping sleeve, and the lifting groove is located below the pressure chamber. The locking groove is perpendicular to the lifting groove. An air flow channel is provided at the top of the pressure chamber. A limit step is provided at the inner end of the locking groove.

[0008] The clamping assembly is installed inside the mounting slot and the movable slot, the lifting assembly is installed inside the lifting slot, the pressure regulating assembly is installed inside the pressure chamber, and the locking assembly is radially installed inside the locking slot;

[0009] The rotating sleeve is mounted on the side of the clamping sleeve, and the fixed sleeve is threadedly connected to the rotating sleeve inside it. A locking ring is fixedly mounted on the side of the fixed sleeve, and a bracket is fixed below the locking ring. The inner side of the rotating sleeve and the outer side of the fixed sleeve are provided with matching threads, and the rotating sleeve moves radially and helically on the fixed sleeve under the cooperation of the threads.

[0010] The clamping assembly moves radially as the power distribution cable is compressed, pushing the lifting assembly upward. The lifting assembly rises in the lifting groove, pushing hydraulic oil into the pressure chamber. This hydraulic oil lifts the pressure regulating assembly, causing the air inside to be discharged from the air passage. The power distribution cable further pushes the locking assembly, causing the locking assembly to move radially outward. The connecting oil circuit between the locking groove and the lifting groove is disconnected. When the clamping assembly moves radially outward under force, the lifting assembly tends to move upward, but because the connecting oil circuit is disconnected, the lifting assembly cannot rise, thus limiting and fixing the clamping assembly.

[0011] As one preferred embodiment, the clamping assembly includes a clamping block, a connecting rod, a sliding block, and a sliding groove; the clamping block has a fan-shaped cross-section, the connecting rod is mounted on the outer side of the clamping block, the sliding block is mounted on the other end of the connecting rod, the sliding block has a right-angled triangular cross-section, and the sliding groove is formed on the inclined surface of the sliding block.

[0012] The inner side of the clamping block is provided with wear-resistant balls, the bottom of the clamping block is provided with a contact arc surface, and the upper and lower ends of the sliding block are equipped with intercepting blocks.

[0013] As one preferred embodiment, the lifting assembly includes a piston block, a piston rod, a lifting block, and a lifting ball; the piston block is installed in a lifting groove opened inside the clamping sleeve, the piston rod is installed below the piston block, the lifting block is installed below the piston rod, and the lifting ball is movably installed in the middle of the lifting block.

[0014] As one preferred embodiment, the pressure regulating assembly includes a lifting piston, a support spring, and a limiting plate; the lifting piston is cylindrical, the support spring is mounted on top of the lifting piston, and the limiting plate is mounted on top of the support spring.

[0015] As one preferred embodiment, the locking assembly includes a locking rod, a connecting hole, a return spring, a limiting rod, and a locking trigger block; the locking rod is cylindrical, the connecting hole is located at the tail of the locking rod, the return spring is installed at the tail end of the locking rod, the limiting rod is installed on the side of the locking rod, and the locking trigger block is installed at the front end of the locking rod.

[0016] As a preferred embodiment, the cross-sectional shape of the locking trigger block is set to a right trapezoid, the front end face of the locking trigger block is set to an arc surface, and the bottom of the arc surface is set to an inclined surface.

[0017] As a preferred embodiment, the device also includes a mounting plate and a cutting assembly; the mounting plate is mounted on the side of the clamping sleeve, and the cutting assembly is mounted inside the mounting plate.

[0018] The mounting plate includes an adjustment groove, a telescopic hole, and a scale; the adjustment groove is formed on the outer surface of the mounting plate, the telescopic hole is formed below the adjustment groove, the axes of symmetry of the adjustment groove and the telescopic hole coincide, and the scale is mounted on the side of the adjustment groove.

[0019] As one preferred embodiment, the cutting assembly includes a rotating disk, a spiral rod, and a cutting blade; the rotating disk is installed inside the adjusting groove, the spiral rod is installed below the rotating disk, and the cutting blade is installed below the spiral rod.

[0020] A method for using a stripping device for repairing power distribution network conductors, applicable to the aforementioned stripping device for repairing power distribution network conductors; the steps of the method are as follows:

[0021] S1: The distribution network conductors that need to be repaired are straightened, and the straightened distribution network conductors are sent into the locking ring;

[0022] S2: Continue inserting the distribution wire forward, passing through the fixed sleeve, rotating sleeve and clamping sleeve in sequence, until the distribution wire moves to the side of the extrusion block. Slowly push the distribution wire forward, and the distribution wire squeezes the clamping block, causing the sliding block to move outward. With the cooperation of the lifting ball and the sliding groove, the piston block rises in the lifting groove. The hydraulic oil in the lifting groove enters the pressure chamber, and the lifting piston overcomes the elastic force of the support spring and rises, and discharges the gas through the air passage.

[0023] S3: Wait 3-5 seconds, the power distribution wire continues to be inserted, touches the locking trigger block and pushes it to move outward, so that the connecting flow channel between the connecting hole and the lifting groove is disconnected. Since the connecting oil circuit is disconnected, the lifting component inside the lifting groove cannot move further, thereby limiting and fixing the clamping component.

[0024] S4: After the distribution wire passes through the clamping sleeve, it continues to extend until it reaches the inside of the cutting blade located inside the mounting plate. Rotate the locking screws arranged in a multiple circumferential array so that the axis of the distribution wire and the locking ring coincides, and the distribution wire is tightly locked by the locking screws, so that the distribution wire cannot be rotated.

[0025] S5: By observing the scale, rotate the rotating disk to move the cutting blade installed underneath to the appropriate position, and then rotate the rotating sleeve to make the clamping sleeve and the mounting disk rotate coaxially.

[0026] S6: With the threaded engagement of the mating surfaces of the fixed sleeve and the rotating sleeve, the rotating sleeve rotates spirally on the surface of the fixed sleeve, allowing the cutting component to cut the sheath of the distribution network conductor in a spiral manner. During the cutting process, the clamping component maintains the concentricity between the distribution network conductor and the clamping sleeve. After the cutting is completed, the locking screw on the locking ring is rotated to allow the distribution network conductor to move freely in the locking ring. Then, the distribution network conductor can be pulled out from the left side of the fixed sleeve to complete the entire cutting process.

[0027] The beneficial effects of this invention are as follows:

[0028] 1. This invention, targeting cables of different diameters, achieves automatic adaptive clamping of distribution network conductors of varying diameters through a fan-shaped clamping block, an inclined sliding block, and a hydraulic lifting assembly. Adjustment is quick and simple, ensuring the concentricity of the fixed distribution network conductor with the rotation center of the cutting component; through multi-directional limiting action, it ensures consistent cutting depth during the cutting process, thereby improving the cutting effect.

[0029] 2. The clamping process of this invention utilizes a hydraulic system for buffering, preventing excessive initial clamping force from damaging the distribution network conductor. Once the distribution network conductor reaches the predetermined position, the locking component automatically triggers, rigidly locking the clamping state and completely fixing the relative position of the distribution network conductor axis and the rotation center of the device. This "soft-then-rigid" clamping method fundamentally solves the problem of uneven cutting depth and damage to the conductor core caused by conductor swaying or eccentricity during the stripping process, ensuring extremely high stripping concentricity and quality.

[0030] 3. This invention integrates a mounting plate with a scale and a cutting assembly driven by a screw rod. The operator can precisely control the rotation of the rotating plate by observing the scale, thereby fine-tuning the cutting depth of the cutting blade to the desired value. This design allows the device to flexibly handle distribution network conductors of different specifications and insulation thicknesses. Attached Figure Description

[0031] The above and other aspects of the invention will now be described by way of example only, with reference to the accompanying drawings, in which:

[0032] Figure 1This is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 This is an installation diagram of the rotating sleeve, clamping sleeve, mounting plate, and cutting assembly;

[0034] Figure 3 It is a cross-sectional view of the clamping sleeve, rotating sleeve, fixed sleeve and locking ring;

[0035] Figure 4 This is a schematic diagram of the clamping assembly, lifting assembly, pressure regulating assembly, and locking assembly in operation and locking mode.

[0036] Figure 5 This is a cross-sectional view of the clamping assembly, lifting assembly, pressure regulating assembly, and locking assembly when they are not in operation.

[0037] Figure 6 This is a schematic diagram of the internal structure of the clamping sleeve;

[0038] Figure 7 This is a schematic diagram of the clamping assembly;

[0039] Figure 8 This is a cross-sectional view of the clamping assembly;

[0040] Figure 9 yes Figure 8 A magnified view of region AA in the image;

[0041] Figure 10 yes Figure 8 A magnified view of the BB region in the image;

[0042] Figure 11 This is a schematic diagram of the sliding groove structure;

[0043] Figure 12 This is a schematic diagram showing the relationship between the clamping block, the locking trigger block, and the inner diameter of the clamping sleeve.

[0044] Figure 13 This is an exploded view of the ball holder, wear-resistant ball, and ball support;

[0045] Figure 14 This is a schematic diagram showing the positions of the lifting assembly and the clamping assembly;

[0046] Figure 15 yes Figure 14 A magnified view of a portion of the CC region;

[0047] Figure 16 This is a cross-sectional view of the pressure regulating component;

[0048] Figure 17 This is a structural diagram of the locking component;

[0049] Figure 18 This is a cross-sectional view of the locking component;

[0050] Figure 19 This is a schematic diagram of the installation structure of the mounting plate and cutting assembly;

[0051] Figure 20 This is a cross-sectional view of the installation disk;

[0052] Figure 21 This is a schematic diagram of the driver component structure.

[0053] In the diagram: 1. Clamping sleeve; 101. Mounting slot; 102. Movable slot; 103. Lifting slot; 104. Pressure chamber; 105. Airflow channel; 106. Locking slot; 107. Limiting step; 2. Clamping assembly; 201. Clamping block; 202. Wear-resistant ball; 203. Contact arc surface; 204. Connecting rod; 205. Sliding block; 206. Intercepting block; 207. Sliding slot; 208. Ball fixing seat; 209. Ball fixing bracket; 3. Lifting assembly; 301. Piston block; 302. Piston rod; 303. Lifting block; 304. Lifting ball; 4. Pressure regulating assembly; 401. Lifting piston; 40 2. Support spring; 403. Limiting plate; 5. Locking assembly; 501. Locking rod; 502. Connecting hole; 503. Return spring; 504. Limiting rod; 505. Locking trigger block; 6. Mounting plate; 601. Adjustment groove; 602. Telescopic hole; 603. Scale; 7. Cutting assembly; 701. Rotary disk; 702. Spiral rod; 703. Cutting blade; 8. Drive assembly; 801. Drive chuck; 802. Mating hole; 803. Drive sleeve; 804. Drive rod; 805. Drive hole; 9. Drive pin; 10. Rotating sleeve; 11. Fixed sleeve; 12. Locking ring; 13. Locking screw. Detailed Implementation

[0054] Example 1:

[0055] like Figure 3-18 As shown, the stripping device for repairing power distribution network conductors includes a clamping sleeve 1, a clamping assembly 2, a lifting assembly 3, and a pressure regulating assembly 4;

[0056] The clamping assembly 2, lifting assembly 3, and pressure regulating assembly 4 are arranged in a circumferential array in the clamping sleeve 1. The clamping assembly 2 is installed inside the clamping sleeve 1. The clamping assembly 2 is installed by inserting a sliding block 205 into the outer side of the movable groove 102, inserting the clamping block 201 into the mounting groove 101, and then installing a circular block with a boss structure into the groove on the outer side of the movable groove 102 by means of threads, etc. The clamping assembly 2 includes the clamping block 201, the connecting rod 204, and the sliding block. The clamping block 201 has a fan-shaped cross-section, the connecting rod 204 is mounted on the outer side of the clamping block 201, and the sliding block 205 is mounted on the other end of the connecting rod 204. The sliding block 205 has a right-angled triangular cross-section, and the sliding groove 207 is formed on the inclined surface of the sliding block 205. Multiple fan-shaped clamping blocks 201 can be combined to form a ring, surrounding the outer surface of the distribution network conductor, thereby adapting to distribution network conductors of different diameters. The right-angled triangular sliding block 205 cooperates with the inclined sliding groove 207 to convert the radial extrusion force into a thrust that drives the wear-resistant ball 202 to move upward, thereby driving the piston rod 302 to rise; thus realizing adaptive clamping according to distribution network conductors of different diameters.

[0057] The clamping assembly is installed as follows: The sliding block 205 is placed inside the movable groove 102. The clamping block 201 is installed inside the mounting groove 101. The maximum length of the clamping block 201 and the connecting rod 204 is less than the inner diameter of the clamping sleeve 1. The mounting groove 101 is positioned as low as possible in the clamping sleeve 1 for ease of installation. The connecting rod 204 is fixedly connected to the side of the clamping block 201. The front end of the connecting rod 204 has a threaded post with a small pipe diameter. The threaded post at the front end of the connecting rod 204 is inserted into the right side of the intercepting block 206. The fixing bolt 209 is placed on the side of the threaded rod, and the bolt is tightened on the outside of the intercepting block 206, thus fixing the connecting rod 204 and the intercepting block 206. Finally, a circular block with a trapezoidal structure is used to install and fix the slotted area using threads or other methods, thus completing the installation.

[0058] The lifting assembly 3 is installed next to the clamping assembly 2. Specifically, the lifting assembly 3 is installed by slotting the upper part of the pressure chamber 104. First, the lifting assembly 3 is placed into the lifting slot 103. Then, the pressure regulating assembly 4 is fixed below the circular block (the part above the pressure chamber 104). Finally, the circular block is fixed above the pressure chamber 104. A ladder structure to prevent falling is provided on the upper part of the circular block. The circular block and the clamping sleeve are connected by a threaded connection. The lifting assembly 3 includes a piston block 301, a piston rod 302, a lifting block 303, and a lifting ball 304. The piston block 301 is installed in the lifting slot 103 inside the clamping sleeve 1. The piston rod 302 is installed below the piston block 301. The lifting block 303 is installed below the piston rod 302. The lifting ball 304 is movably installed in the middle of the lifting block 303. It is worth noting that the diameter of the piston rod 302 is greater than the overall length of the lifting block 303 and the lifting ball 304. The horizontal projection of the piston rod 302... The piston block 301 can be completely covered by the lifting block 303 and the lifting ball 304, so that during the installation process, the piston block 301 is placed in the lifting groove 103, and the piston rod 302, the lifting block 303 and the lifting ball 304 can pass smoothly through the through hole under the lifting groove 103. The piston block 301 forms a hydraulic seal in the lifting groove 103, which can transmit pressure. When the distribution network conductor shakes, the piston block 301 and the hydraulic oil further dampen the vibration, which can effectively stabilize the distribution network conductor and improve the stripping quality. The use of wear-resistant ball 202 can reduce friction with the distribution network conductor.

[0059] The pressure regulating assembly 4 is installed inside the pressure chamber 104. The pressure regulating assembly 4 includes a lifting piston 401, a support spring 402, and a limiting plate 403. The lifting piston 401 is cylindrical. The support spring 402 is installed on top of the lifting piston 401. The limiting plate 403 is installed on top of the support spring 402. The support spring 402 is an elastic element, which allows the lifting piston 401 and the limiting plate 403 to be deformed by the hydraulic oil in the lower part of the pressure chamber 104, so that the gas between them is discharged through the air passage 105 to balance the system pressure.

[0060] The inner side of the clamping sleeve 1 is provided with a mounting groove 101 for placing the clamping block 201. The outer side of the mounting groove 101 is provided with a movable groove 102 for accommodating the sliding block 205. A circular through hole is provided between the mounting groove 101 and the movable groove 102, and the circular through hole is matched with the connecting rod 204. A pressure chamber 104 is provided on the upper part of the movable groove 102. The upper part of the pressure chamber 104 is filled with air, and the lower part is filled with hydraulic oil, which is separated and isolated by the lifting piston 401. An air flow channel 105 is provided on the top of the pressure chamber 104, which is used to draw in or discharge gas to the outside when the pressure chamber 104 is adjusted.

[0061] The inner side of the clamping block 201 is provided with wear-resistant rolling balls 202. In order to adapt to the installation of wear-resistant rolling balls 202, this embodiment provides an installation method for wear-resistant rolling balls, specifically including a ball fixing seat 208 and a ball fixing frame 209. The ball fixing seat 208 is set as a T-shaped block with a spherical slot on it to accommodate the wear-resistant rolling balls 202. During installation, a hole of appropriate size and depth is first drilled on the side of the clamping block 201, the ball fixing seat 208 is placed in it, the wear-resistant rolling balls 202 are placed in it, and then the ball fixing frame 209 is placed in it. The fixing frame 209 is fixed to the clamping block 201 with screws. The wear-resistant rolling balls 202 and the two (ball fixing seat 208 and ball fixing frame 209) are in clearance fit, and the wear-resistant rolling balls 202 can rotate freely in it. The wear-resistant ball 202 can reduce contact friction. The clamping block 201 has a contact arc surface 203 on its lower side. The upper and lower ends of the sliding block 205 are equipped with intercepting blocks 206. The intercepting blocks 206 can limit the stroke of the sliding block 205 and prevent the component from detaching.

[0062] This embodiment also includes a locking component 5, which is radially installed inside the clamping sleeve 1. To accommodate the locking component 5, a locking groove 106 is provided vertically in the lifting groove 103 inside the clamping sleeve 1. A limiting step 107 is provided at the top of the locking groove 106. The specific manufacturing method of the limiting step 107 is to bore a hole on the outer side of the clamping sleeve 1 to form the locking groove 106, leaving a part in the inner end of the clamping sleeve 1. This part is drilled, and the diameter of the drilled hole is smaller than the diameter of the boring hole. The remaining part forms the limiting step 107. The limiting step 107 is used to cooperate with the limiting rod 504 to limit the movement range of the locking rod 501. The locking groove 106 cooperates with the locking component 5 to realize the mechanical locking of the lifting component 3.

[0063] The locking assembly 5 includes a locking rod 501, a connecting hole 502, a return spring 503, a limiting rod 504, and a locking trigger block 505. The projected area of ​​the locking trigger block 505 is smaller than the cross-sectional area of ​​the limiting rod 504, thus ensuring smooth installation. The front part of the limiting rod 504 is divided into two sections, with the front section being thinner to facilitate the smooth passage of the limiting step 107. The arc surface of the locking trigger block 505 facilitates the introduction of the power distribution wire, while the inclined surface ensures radial movement when pushed. The return spring 503 keeps the locking assembly 5 in its initial position when there is no power distribution wire, ensuring unobstructed flow.

[0064] The locking rod 501 is cylindrical, and the connecting hole 502 is opened at the tail of the locking rod 501. When there is no external force pressing the locking trigger block 505, the connecting hole 502 and the lifting groove 103 are aligned to form a connected flow channel. Whenever a distribution network wire within the allowable range passes through, the locking rod will move beyond the diameter of the lifting hole, thus blocking the flow path between the connecting hole 502 and the lifting groove 103. Moreover, the exposed length of the locking trigger block 505 relative to the clamping sleeve 1 is much greater than the exposed length of the clamping block 201. The radius of the hollow part inside the clamping sleeve 1 is set to X, the length of the innermost end of the clamping block 201 relative to the center of the clamping sleeve 1 is Y, and the length of the innermost end of the locking trigger block 505 relative to the center of the clamping sleeve 1 is Z.

[0065] The following relationship exists between the three:

[0066] First, Y = 0.4 - 0.8X; Z = 0.8Y;

[0067] Secondly, the compatible distribution network conductor length is between X and Y, and the diameter of the connecting hole 502 is less than 0.2Y;

[0068] In actual operation, the specific settings can be made according to the above content and the diameter of the distribution network conductor in the usage scenario. Such settings can ensure that the distribution network conductors within the restricted range can be clamped, and the clamping block 201 will provide a certain clamping force (even if the length value of the adaptable distribution network conductor is the same as the length value of the innermost end of the clamping block 201 relative to the center of the clamping sleeve 1, due to the presence of the wear-resistant ball 202, the distribution network conductor will still push the clamping block 201 outward a certain distance, thereby forming a clamping force). It also ensures that each time the distribution network conductor passes through the locking trigger block 505, the length pushed outward must be greater than the diameter value of the connecting hole 502, ensuring that the lifting groove 103 is blocked by the locking rod 501.

[0069] The reset spring 503 is installed at the tail end of the locking rod 501. During installation, the entire locking rod 501 is first placed into the locking groove. The locking trigger block 505 and the thinner front end of the locking rod 501 are exposed through the limiting step 107. The locking rod 501 is rotated so that the axis of the connecting hole 502 and the lifting groove 103 are parallel. The circular block used to be installed on the outside of the locking groove 103 and one end of the reset spring 503 are fixed. Then the circular block is fixed on the outside of the locking groove 103 by bolt installation or other means.

[0070] The limiting rod 504 is disposed on the inner side of the locking rod 501. The locking trigger block 505 is installed at the front end of the locking rod 501. The cross-sectional shape of the locking trigger block 505 is a right trapezoid, and the front end face of the locking trigger block 505 is an arc surface, while the bottom of the arc surface is a slope. The slope and arc surface are designed to reduce wear and improve stripping quality when the distribution network conductor moves from bottom to top and squeezes the locking trigger block 505. The mounting groove 101 and the movable groove 102 provide precise installation and movement space for the clamping assembly 2 and the lifting assembly 3. The air passage 105 can discharge gas from the pressure chamber 104, avoiding air resistance and ensuring accurate hydraulic transmission.

[0071] Example 2: Figure 2 , Figure 19 and Figure 20 As shown, this embodiment provides a suitable cutting device based on the above embodiments.

[0072] In addition to the above embodiments, the device also includes a mounting plate 6 and a cutting assembly 7. The mounting plate 6 is fixedly installed on the side of the clamping sleeve 1. The mounting plate 6 and the clamping sleeve 1 are connected by flange bolts, welding, and interference fit, etc. The cutting assembly 7 is installed inside the mounting plate 6. The mounting plate 6 is set as an annular ring. During the manufacturing process, two semi-circular rings are prepared. One of them is machined with an adjustment groove 601 and a telescopic hole 602. Then, a hole is drilled between the two, and threads are made on the inner surface of the hole. The mating surfaces of the two semi-circular rings are fixed by flange bolts, clamps / half rings, etc., to form the mounting plate 6. If frequent tool changes are required, the two parts of the mounting plate 6 can be set as detachable, so as to facilitate quick disassembly for tool change and maintenance.

[0073] The mounting plate 6 includes an adjustment groove 601, a telescopic hole 602, and a scale 603. The adjustment groove 601 is formed on the outer surface of the mounting plate 6, and the telescopic hole 602 is formed below the adjustment groove 601. The axes of symmetry of the adjustment groove 601 and the telescopic hole 602 coincide. The telescopic hole 602 is a threaded through hole used to accommodate the helical rod 702 and engage with its surface threads. The scale 603 is mounted on the side of the adjustment groove 601 and has a corresponding feed value. The reading can be obtained by determining where the plane of the rotating plate 701 coincides with the scale. The adjustment groove 601 and the telescopic hole 602 are coaxially arranged to ensure accurate trajectory adjustment of the cutting blade 707. The scale 603 allows the operator to accurately and intuitively set the cutting depth, improving peeling accuracy. Rotate the rotating plate 701 until its upper plane coincides with the desired scale on the scale 603; at this point, the feed amount adjustment is complete.

[0074] The cutting assembly 7 includes a rotating disk 701, a spiral rod 702, and a cutting blade 703; the rotating disk 701 is installed inside the adjusting groove 601, the spiral rod 702 is installed below the rotating disk 701, and the cutting blade 703 is installed below the spiral rod 702, for cutting cables.

[0075] The cutting blade 703 can be changed in model and material according to the usage requirements and the material of the distribution network conductor. It should be noted that the existing cutting blade 703 generally only has a blade on one side or in part of the area. Before cutting, the operator needs to observe whether the blade of the cutting blade 703 is perpendicular to the distribution network conductor to ensure cutting efficiency and cutting effect.

[0076] Rotating the rotary disk 701 causes the cutting blade 703 to spiral up or down due to the threaded engagement of the spiral rod 702 and the telescopic hole 602, thereby adjusting the feed distance.

[0077] Example 3: Figure 1 , Figure 2 and Figure 21 As shown, based on the above embodiments, this embodiment provides a driving method and an installation method;

[0078] The installation method is as follows: (e.g.) Figure 1 As shown, a bracket is set on the ground, and a locking ring 12 is installed at the left end of the bracket. Multiple locking screws are arranged in a circular array inside the locking ring 12. The locking screws are extended and retracted by manually rotating the nuts. They are fixed before the distribution network wire is cut to ensure that it will not move or be rotated by the tangential extrusion force of the cutting blade 707 during the cutting process, which would result in poor cutting quality or cutting failure. At least 3 locking screws are provided, or a device that can be radially concentrically fixed in the prior art can be used instead.

[0079] A handle is installed on the top of the locking ring 12 for easy lifting and movement. A fixing ring is provided at the other end of the handle. A fixing sleeve 11 is installed on the right side of the locking ring 12. The fixing sleeve 11 and the locking ring 12 are connected by flange bolts, welding and interference fit, etc. The surface of the fixing sleeve 11 is threaded. The rotating sleeve 10 is located inside the fixing ring. The inside of the rotating sleeve 10 is threaded to match the surface of the fixing sleeve 11. A clamping sleeve 1 is provided on the right side of the rotating sleeve 10. A mounting plate 6 is fixedly installed on the right side of the clamping sleeve 1. A drive pin 9 is installed on the side of the mounting plate 6. A drive assembly 8 is also provided for matching use.

[0080] The driving method is as follows: A driving pin 9 is installed on the side of the cutting component 7. The driving pin 9 is used in conjunction with the driving component 8. The driving component 8 includes a driving chuck 801, a mating hole 802, a driving sleeve 803, a driving rod 804, and a driving hole 805. The driving chuck 801 has a mating hole 802. The driving sleeve 803 is installed on the side of the driving chuck 801. The driving rod 804 is installed on the surface of the driving sleeve 803. The driving hole 805 is located on the side of the driving sleeve 803. The cooperation between the driving pin 9 and the driving chuck 801 enables power transmission. The driving rod 804 facilitates manual operation, and the driving hole 805 allows connection to power tools, providing multiple driving methods to adapt to different working environments.

[0081] Operating method of the stripping device for power distribution network conductor repair, applicable to the stripping device for power distribution network conductor repair described above:

[0082] S1: The distribution network conductors that need to be repaired are straightened, and the straightened distribution network conductors are sent into the locking ring 12;

[0083] S2: Continue inserting the distribution wire forward, passing through the fixed sleeve 11, the rotating sleeve 10 and the clamping sleeve 1 in sequence, until the distribution wire moves to the side of the extrusion block 201. Slowly push the distribution wire forward. The distribution wire extrudes the clamping block 201, causing the sliding block 205 to move outward. With the cooperation of the lifting ball 304 and the sliding groove 207, the piston block 301 rises in the lifting groove 103. The hydraulic oil in the lifting groove 103 enters the pressure chamber 104. The lifting piston 401 rises against the elastic force of the supporting spring 404 and discharges the gas through the air passage 105.

[0084] S3: Wait 3-5 seconds, the power distribution wire continues to be inserted, touches the locking trigger block 505 and pushes it to move outward, so that the connecting flow channel between the connecting hole 502 and the lifting groove 103 is disconnected. Since the connecting oil circuit is disconnected, the lifting component 3 inside the lifting groove 103 cannot move further, so that the clamping component 2 is limited and fixed.

[0085] S4: After the distribution wire passes through the clamping sleeve 1, it continues to extend until it reaches the inside of the cutting blade 703 located inside the mounting plate 6. Rotate the locking screws 13 arranged in a multiple circumferential array so that the axis of the distribution wire and the locking ring 12 coincides and the distribution wire is tightly locked by the locking screws 13, so that the distribution wire cannot be rotated.

[0086] S5: By observing the scale 603, rotate the rotating disk 701 to move the cutting blade 703 installed below it to the appropriate position, and then rotate the rotating sleeve 10 to make the clamping sleeve 1 and the mounting disk 6 rotate coaxially.

[0087] S6: With the threaded engagement of the mating surfaces of the fixed sleeve 11 and the rotating sleeve 10, the rotating sleeve 10 rotates spirally on the surface of the fixed sleeve 11, and the cutting assembly 7 can spirally cut the sheath of the distribution network conductor. During the cutting process, the clamping assembly 2 maintains the concentricity between the distribution network conductor and the clamping sleeve 1. After the cutting is completed, the locking screw 13 on the locking ring is rotated so that the distribution network conductor can move freely in the locking ring 12. Then, the distribution network conductor can be pulled out from the left side of the fixed sleeve 11 to complete the entire cutting process.

[0088] In the operation of this invention, the power distribution line to be repaired is first smoothly fed into the locking ring 12 from the left side. If the power distribution line is bent, it needs to be straightened in advance by a straightening device. After the power distribution line enters, it squeezes the clamping block 201 to move outward. Through the cooperation of the inclined surface of the sliding block 205 and the lifting ball 304, the piston block 301 is pushed to move downward in the lifting groove 103. Hydraulic oil is pressed into the pressure chamber 104 to push the lifting piston 401 upward. The support spring 402 is compressed, and gas is discharged from the air passage 105, completing the pressure self-adaptation. When the power distribution line continues to advance and touches the locking trigger block 505, the locking rod 501 is pushed to move radially, cutting off the oil circuit connection between the connecting hole 502 and the lifting groove 103. The piston block 301 is fixed by the negative pressure of hydraulic oil, and the clamping state is locked. The wire continues to pass through the device until the front end reaches the inside of the cutting blade 707 inside the mounting plate 6. One side of the distribution network wire is fixed by the locking screws 13, which are arranged in a circumferential array of three. At this time, the rotating disk 701 is rotated according to the indicator 603, and the cutting blade 707 is adjusted to a suitable depth by the screw rod 702. Then, the drive sleeve 803 is rotated by the drive rod 804 or a power tool, which drives the entire cutting assembly 7 to rotate. With the threaded engagement between the rotating sleeve 10 and the fixed sleeve 11, the cutting assembly 7 rotates and feeds axially, performing a spiral cut on the surface of the distribution network wire. During this process, the clamping assembly 2 always maintains the concentricity of the distribution network wire and the rotation axis. After the cutting is completed, the distribution network wire is pulled out of the device, and all components automatically reset, ready for the next operation.

Claims

1. A stripping device for repairing power distribution network conductors, characterized in that, It includes a clamping sleeve (1), a clamping assembly (2), a lifting assembly (3), a pressure regulating assembly (4) and a locking assembly (5), a rotating sleeve (10), a fixed sleeve (11) and a locking ring (12); The clamping sleeve (1) has an installation groove (101) on its inner side and a movable groove (102) on its outer side. There are two circular through holes distributed vertically between the installation groove (101) and the movable groove (102). The pressure chamber (104) is located on the top of the clamping sleeve (1). The lifting groove (103) is located below the pressure chamber (104). The locking groove (106) is perpendicular to the lifting groove (103). An air flow channel (105) is provided at the top of the pressure chamber (104) facing outward. A limit step (107) is provided at the inner end of the locking groove (106). The clamping assembly (2) is installed inside the mounting slot (101) and the movable slot (102), the lifting assembly (3) is installed inside the lifting slot (103), the pressure regulating assembly (4) is installed inside the pressure chamber (104), and the locking assembly (5) is radially installed inside the locking slot (106). The rotating sleeve (10) is installed on the side of the clamping sleeve (1), and the fixed sleeve (11) is threadedly connected to the rotating sleeve (10) inside it. A locking ring (12) is fixedly installed on the side of the fixed sleeve (11), and a bracket is fixed below the locking ring (12). The inner side of the rotating sleeve (10) and the outer side of the fixed sleeve (11) are provided with matching threads. Under the cooperation of the threads, the rotating sleeve (10) moves radially and helically on the fixed sleeve (11). The clamping assembly (2) moves radially under the pressure of the power distribution wire, and the clamping assembly (2) pushes the lifting assembly (3) upward. The lifting assembly (3) rises in the lifting groove (103), so that the hydraulic oil is pushed into the pressure chamber (104). This part of the hydraulic oil lifts the pressure regulating assembly (4) so ​​that the air inside it is discharged from the air flow channel (105). The power distribution wire further pushes the locking assembly (5), so that the locking assembly (5) moves radially outward. The connecting oil circuit between the locking groove (106) and the lifting groove (103) is disconnected. When the clamping assembly (2) is subjected to force and moves radially outward, the lifting assembly (3) has a tendency to move upward. However, because the connecting oil circuit is disconnected, the lifting assembly (3) cannot rise, thereby limiting and fixing the clamping assembly (2).

2. The stripping device for repairing power distribution network conductors according to claim 1, characterized in that: The clamping assembly (2) includes a clamping block (201), a connecting rod (204), a sliding block (205), and a sliding groove (207); the clamping block (201) has a fan-shaped cross-section, the connecting rod (204) is installed on the outer side of the clamping block (201), the sliding block (205) is installed on the other end of the connecting rod (204), the sliding block (205) has a right-angled triangle cross-section, and the sliding groove (207) is formed on the inclined surface of the sliding block (205).

3. The stripping device for repairing power distribution network conductors according to claim 2, characterized in that: The inner side of the clamping block (201) is provided with wear-resistant rolling balls (202), the bottom of the clamping block (201) is provided with a contact arc surface (203), and the upper and lower ends of the sliding block (205) are equipped with intercepting blocks (206).

4. The stripping device for repairing power distribution network conductors according to claim 1, characterized in that: The lifting assembly (3) includes a piston block (301), a piston rod (302), a lifting block (303), and a lifting ball (304); the piston block (301) is installed in a lifting groove (103) inside the clamping sleeve (1), the piston rod (302) is installed below the piston block (301), the lifting block (303) is installed below the piston rod (302), and the lifting ball (304) is movably installed in the middle of the lifting block (303).

5. The stripping device for repairing power distribution network conductors according to claim 1, characterized in that: The pressure regulating assembly (4) includes a lifting piston (401), a support spring (402), and a limiting plate (403); the lifting piston (401) is cylindrical, the support spring (402) is mounted on the top of the lifting piston (401), and the limiting plate (403) is mounted on the top of the support spring (402).

6. The stripping device for repairing power distribution network conductors according to claim 1, characterized in that: The locking assembly (5) includes a locking rod (501), a connecting hole (502), a return spring (503), a limiting rod (504), and a locking trigger block (505). The locking rod (501) is cylindrical, the connecting hole (502) is opened at the tail of the locking rod (501), the reset spring (503) is installed at the tail end of the locking rod (501), the limiting rod (504) is installed on the side of the locking rod (501), and the locking trigger block (505) is installed at the front end of the locking rod (501).

7. The stripping device for repairing power distribution network conductors according to claim 6, characterized in that: The cross-sectional shape of the locking trigger block (505) is set as a right trapezoid, the front end face of the locking trigger block (505) is set as an arc surface, and the bottom of the arc surface is set as an inclined surface.

8. The stripping device for repairing power distribution network conductors according to claim 1, characterized in that: It also includes a mounting plate (6) and a cutting assembly (7); the mounting plate (6) is mounted on the side of the clamping sleeve (1), and the cutting assembly (7) is mounted inside the mounting plate (6); The mounting plate (6) includes an adjustment groove (601), a telescopic hole (602), and a scale (603); the adjustment groove (601) is formed on the outer surface of the mounting plate (6), the telescopic hole (602) is formed below the adjustment groove (601), the axis of symmetry of the adjustment groove (601) and the telescopic hole (602) coincide, and the scale (603) is mounted on the side of the adjustment groove (601).

9. The stripping device for repairing power distribution network conductors according to claim 8, characterized in that: The cutting assembly (7) includes a rotating disk (701), a spiral rod (702), and a cutting blade (703). The rotating disk (701) is installed inside the adjusting groove (601), the spiral rod (702) is installed below the rotating disk (701), and the cutting blade (703) is installed below the spiral rod (702).

10. A method for using a stripping device for repairing distribution network conductors, applicable to the stripping device for repairing distribution network conductors according to any one of claims 1-9; the steps of the method are as follows: S1: The distribution network conductors that need to be repaired are straightened and then sent into the locking ring (12); S2: Continue inserting the distribution wire forward, passing through the fixed sleeve (11), rotating sleeve (10) and clamping sleeve (1) in sequence, until the distribution wire moves to the side of the extrusion block (201). Slowly push the distribution wire forward, and the distribution wire extrudes the clamping block (201), causing the sliding block (205) to move outward. With the cooperation of the lifting ball (304) and the sliding groove (207), the piston block (301) rises in the lifting groove (103). The hydraulic oil in the lifting groove (103) enters the pressure chamber (104). The lifting piston (401) rises against the elastic force of the support spring (404) and discharges the gas through the air passage (105). S3: Wait 3-5 seconds, continue to insert the distribution wire, touch the locking trigger block (505) and push it to move outward, so that the connecting flow channel between the connecting hole (502) and the lifting groove (103) is disconnected. Since the connecting oil circuit is disconnected, the lifting component (3) inside the lifting groove (103) cannot move further, so that the clamping component (2) is limited and fixed. S4: After the distribution wire passes through the clamping sleeve (1), it continues to extend until it reaches the inside of the cutting blade (703) located inside the mounting plate (6). Rotate the locking screws (13) arranged in a multiple circumferential array so that the axis of the distribution wire and the locking ring (12) coincides and the distribution wire is tightly locked by the locking screws (13), so that the distribution wire cannot be rotated. S5: By observing the scale (603), rotate the rotating disk (701) to move the cutting blade (703) installed below it to the appropriate position, and then rotate the rotating sleeve (10) to make the clamping sleeve (1) and the mounting disk (6) rotate coaxially; S6: With the threaded engagement of the mating surfaces of the fixed sleeve (11) and the rotating sleeve (10), the rotating sleeve (10) rotates spirally on the surface of the fixed sleeve (11), and the cutting assembly (7) can spirally cut the sheath of the distribution network conductor. During the cutting, the clamping assembly (2) maintains the concentricity between the distribution network conductor and the clamping sleeve (1). After the cutting is completed, the locking screw (13) on the locking ring is rotated so that the distribution network conductor can move freely in the locking ring (12). Then the distribution network conductor is pulled out from the left side of the fixed sleeve (11) to complete the entire cutting process.

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