Cable insulation performance detection and repair device and method

Abstract

The invention provides a cable insulation performance detecting and repairing device and method. The cable insulation performance detecting and repairing device comprises a cable laying device, a detecting mechanism, a repairing mechanism and a cable collecting device. The cable laying device is used for stably releasing a to-be-detected cable. The detection mechanism is used for detecting cable insulation performance and comprises a detection ring, a first driving device and an electric leakage detection device, and insulation defects are positioned by rotating the detection ring and acquiring electric leakage current signals; the repairing mechanism comprises a gluing mechanism and a drying box, the gluing mechanism is used for coating glue to the cable through the glue injection device and the gluing device after the damage point is detected, and the drying box accelerates repairing and solidifies the glue; and the cable take-up device is used for taking up the repaired cable. The automatic and cooperative work of all mechanisms in the whole device greatly improves the speed and quality of cable insulation performance detection and repair, avoids the problem of uneven repair or leak detection caused by misoperation or low efficiency in traditional manual operation, and remarkably improves the safety, reliability and construction efficiency before cable construction.

Description

Technical Field

[0001] The present invention relates to the technical field of cable insulation performance detection, and in particular to a cable insulation performance detection and repair device and method. Background Art

[0002] In power transmission lines, cables are the main wires for power transmission. Their structure usually includes conductor, insulation layer, inner sheath, outer sheath and armor layer from inside to outside. The insulation performance of cables is crucial for safe power transmission. However, the current cable insulation performance detection and repair technology has significant limitations and shortcomings.

[0003] Normally, after the cables are transported to the construction site, workers directly lay the cables without prior insulation performance testing. However, due to the large number of cables, they are inevitably damaged during transportation or when leaving the factory, causing the cables to lose their proper insulation performance. If the cables are laid when they are damaged, it may cause serious safety hazards. After the installation is completed, if the cables are damaged during normal operation, it will cause leakage accidents, endangering the safety of construction workers, and the damaged cables need to be re-tested and repaired, which greatly wastes manpower and material resources.

[0004] At present, in the process of testing the insulation performance of cables, a DC high-voltage current is usually passed through both ends of the cable, and a handheld detection ring is slid on the cable to detect leakage current or electric field changes, thereby determining the point of insulation damage. When damage is detected in the cable insulation layer, the current technology still mainly relies on manual repair. This method is not only inefficient, but also particularly cumbersome and time-consuming in large-scale cable laying projects. Human factors in the manual repair process may also lead to unstable repair quality, further increasing maintenance costs and safety risks.

[0005] Therefore, how to achieve efficient and reliable cable insulation performance testing and timely repair at the construction site has become a technical problem that urgently needs to be solved. Summary of the invention

[0006] In view of this, the present invention proposes a cable insulation performance detection and repair device and method to solve the problem that cable insulation performance detection and subsequent damage repair cannot be efficiently implemented before cable construction at the current stage.

[0007] The technical solution of the present invention is achieved in this way:

[0008] In one aspect, the present invention provides a cable insulation performance detection and repair device, comprising:

[0009] Cable releasing device, used to release the cable to be inspected;

[0010] A detection mechanism is arranged on one side of the cable releasing device and is used to detect the insulation performance of the cable released by the cable releasing device. The detection mechanism includes a first fixing frame and a detection ring arranged on the first fixing frame, a first driving device and a leakage detection device. A first mounting hole is opened on the side wall of the first fixing frame. The detection ring is arranged at the first mounting hole. The first driving device is used to drive the detection ring to rotate on the outer surface of the cable. The leakage detection device is used to obtain a leakage current signal on the detection ring.

[0011] A repair mechanism is arranged on a side of the detection mechanism away from the cable release device, and is used to repair the fault point of the cable insulation layer when receiving a leakage current signal. The repair mechanism includes a glue coating mechanism and a drying box. The glue coating mechanism is located between the detection mechanism and the drying box. The glue coating mechanism includes a second fixing frame and a glue coating device, a glue injection device and a second driving device arranged on the second fixing frame. The side wall of the second fixing frame is provided with a second mounting hole coaxial with the first mounting hole. The glue coating device includes a clamping assembly and a plurality of glue coating parts. The plurality of glue coating parts are evenly surrounded at the second mounting hole. The clamping assembly is used to drive the glue coating parts to clamp the outer wall of the cable. The glue injection device is used to apply glue to the outer wall of the cable through the glue coating parts. The second driving device is used to drive the glue coating device to rotate. The drying box is used to dry the glued cable.

[0012] The cable retracting device is arranged on a side of the repairing mechanism away from the detecting mechanism and is used for retracting the repaired cable.

[0013] On the basis of the above technical solution, preferably, the detection ring includes a plurality of arc-shaped plates uniformly surrounding the first mounting hole, the detection mechanism also includes a first adjustment device arranged on the front side of the first fixing frame, used to drive the plurality of arc-shaped plates to open or close synchronously, the first driving device is used to drive the first adjustment device to rotate around the first mounting hole, and the first adjustment device includes an annular support disk, an annular fixing disk, an annular gear disk, a positioning rod, a driven gear and a driving gear;

[0014] The annular support plate is coaxially rotatably arranged at the first mounting hole, the number of positioning rods is consistent with the number of arc plates, one end of the positioning rod is slidably arranged on the surface of the annular support plate, and the other end is connected to the arc plate, and the side wall of the positioning rod is provided with a first tooth;

[0015] The number of driven gears is consistent with the number of positioning rods. The driven gears are rotatably arranged on the annular support plate and are located on one side of the corresponding positioning rod and meshed with the first teeth. The annular toothed plate is horizontally arranged above the positioning rod, and the inner teeth of the annular toothed plate are meshed with the plurality of driven gears.

[0016] The annular fixed disk is located outside the annular toothed disk and is fixedly connected to the annular supporting disk. The driving gear is rotatably arranged between the annular fixed disk and the annular supporting disk, and the driving gear is meshed with the outer teeth of the annular toothed disk. The central axis of the driving gear moves through the outside of the annular fixed disk and is connected to an adjusting knob.

[0017] On the basis of the above technical solution, preferably, a plurality of rollers are arranged on the inner wall of the arc plate so as to rotate evenly around the central axis of the first mounting hole, the axial direction of the rollers is parallel to the axial direction of the first mounting hole, a floating assembly is also arranged between the arc plate and the positioning rod, the floating assembly comprises a first elastic member, a connecting rod and a connecting plate, the connecting plate is vertically fixed to one end of the positioning rod facing the arc plate, one end of the connecting rod is fixedly connected to the outer wall of the arc plate, the other end movably passes through the connecting plate and is connected to the limited position portion, and the first elastic member is sleeved on the connecting rod between the connecting plate and the arc plate;

[0018] The annular support plate is away from the annular fixed plate at the center of one side of the first cylinder, the first cylinder passes through the first mounting hole and extends to the rear side of the first fixing frame, the leakage detection device includes a conductive rod, a second elastic member and a controller, a card slot is opened on the rear side of the first fixing frame, the conductive rod is slidably set in the card slot, the second elastic member is set in the card slot, the two ends of the second elastic member are respectively abutted against one end of the conductive rod and the inner wall of the mounting slot, the other end of the conductive rod passes through the card slot and abuts against the outer wall of the first cylinder, the conductive rod is electrically connected to the controller, the first fixing frame is made of insulating material, the annular support plate, the first cylinder, the positioning rod, the floating assembly, the arc plate and the roller are all made of conductive material.

[0019] On the basis of the above technical solution, preferably, the first driving device includes a first motor and a first gear, the outer peripheral wall of the annular support plate is provided with a second gear, the first gear is rotatably arranged on the front side of the first fixed frame and meshes with the second gear, the first motor is fixedly arranged on a side of the first fixed frame away from the first adjusting device, and the output shaft of the first motor passes through the first fixed frame and is fixedly connected to the first gear.

[0020] On the basis of the above technical solution, preferably, the clamping assembly includes a first annular mounting plate, a second annular mounting plate, a rotating sleeve, a second gear, a second motor, a first slip ring, and a first mounting frame and a second mounting frame;

[0021] The first annular mounting plate is rotatably disposed on the front side of the second fixing frame and is coaxial with the second mounting hole. The second driving device is disposed on the rear side of the second fixing frame and is used to drive the first annular mounting plate to rotate.

[0022] The second annular mounting plate is coaxially rotatably arranged on a side of the first annular mounting plate away from the second fixing frame, the outer wall of the second annular mounting plate is evenly provided with mounting grooves equal in number to the number of the rubber coating members, the mounting grooves penetrate the inner wall of the second annular mounting plate, and the outer wall of the second annular mounting plate is provided with third teeth;

[0023] The glue coating member includes a rod and a glue coating portion, the glue coating portion is located inside the second annular mounting plate, the glue coating portion is circular, one end of the rod is fixedly connected to the glue coating portion, and the other end horizontally passes through the mounting groove and is rotatably connected to the first annular mounting plate, the rotating sleeve is sleeved outside the rod and rotatably arranged in the mounting groove, and the rod can slide relative to the rotating sleeve;

[0024] The first mounting frame is fixedly arranged on the first annular mounting plate, the second motor is fixedly arranged on the first mounting frame, the output shaft of the second motor is meshed and connected with the third teeth through the second gear, the second mounting frame is fixedly arranged on the front side of the second fixing frame, the second mounting frame is provided with a threading hole coaxial with the second mounting hole, the first slip ring is fixedly arranged in the threading hole, and is slidably connected with the electrode of the second motor.

[0025] On the basis of the above technical scheme, preferably, the glue injection device includes a glue injection pressure vessel, a sealing ring and a hollow rod, the outer peripheral wall of the second fixing frame is provided with an annular groove, the sealing ring is fixedly arranged on the front side of the second fixing frame, and the sealing ring is sleeved on the outer peripheral side of the first annular mounting disk and is rotatably sealed and connected to the annular groove, the glue injection pressure vessel is fixedly arranged on the top surface of the second fixing frame, the glue injection port of the glue injection pressure vessel passes through the sealing ring and is connected to the annular groove, the hollow rod is vertically fixed to the surface of the first annular mounting disk and is connected to the annular groove, the side of the rod part away from the glue coating part is rotatably sealed and connected to the hollow rod, a cavity is provided inside the glue coating part, the outer peripheral wall of the hollow rod is provided with a glue inlet hole connected to the cavity, and the glue coating part is provided with a plurality of glue outlet holes on the side facing the second mounting hole.

[0026] On the basis of the above technical solution, preferably, a second cylinder is fixedly arranged at the center of one side of the first annular mounting disk away from the second annular mounting disk, and a fourth tooth is arranged on the outer peripheral wall of the second cylinder. The second cylinder passes through the second mounting hole and extends to the rear side of the second fixed frame. The second driving device includes a third motor and a third gear. The third motor is fixedly arranged on the second fixed frame, and the output shaft of the third motor is meshed with the fourth tooth through the third gear.

[0027] On the basis of the above technical solution, preferably, it further includes a cleaning mechanism, which is arranged on a side of the detection mechanism away from the repair mechanism, and includes a third fixing frame, a mounting cylinder, an arc-shaped clamping plate, a second adjusting device and a third driving device;

[0028] The side wall of the third fixing frame is provided with a third mounting hole coaxial with the first mounting hole, the mounting tube is horizontally rotatably arranged in the third mounting hole, two arc-shaped clamping plates are provided, the two arc-shaped clamping plates are coaxially arranged in the mounting tube, and the inner side walls of the arc-shaped clamping plates are provided with bristles;

[0029] The second adjustment device is arranged between the arc-shaped clamping plate and the mounting tube, and includes a guide rod and an adjustment screw. One end of the adjustment screw is rotatably connected to the outer side wall of the arc-shaped clamping plate in the radial direction, and the other end vertically passes through the mounting tube and is threadedly connected to the mounting tube. Two guide rods are provided, which are symmetrically arranged on both sides of the adjustment screw along the axial direction of the arc-shaped clamping plate. One end of the guide rod is fixedly connected to the arc-shaped clamping plate, and the other end vertically moves upward through the mounting tube.

[0030] The third driving device is arranged at the rear side of the third fixing frame, and is used for driving the installation tube to drive the arc clamping plate to rotate.

[0031] On the basis of the above technical solution, preferably, it further includes a base plate, the cleaning mechanism, the detection mechanism and the repair mechanism are fixedly arranged on the base plate in sequence and at intervals, and a conveying roller is also arranged on the side of the cleaning mechanism away from the detection mechanism; the cable unwinding device and the cable winding device have the same structure, both include a pay-off frame, a cable drum and a second slip ring, the cable drum is rotatably arranged on the pay-off frame, the rotating part of the second slip ring is fixedly connected to the rotating shaft of the cable drum, the fixed part of the second slip ring is fixedly connected to the pay-off frame, one end of the cable is used to be electrically connected to the rotating part of the second slip ring through the rotating shaft, and the fixed part of the second slip ring is used to connect electricity.

[0032] In a second aspect, the present invention further discloses a cable insulation performance detection and repair method, which utilizes the cable insulation performance detection and repair device described in the first aspect, and comprises the following steps:

[0033] S1. Pass the free end of the cable to be tested on the cable-releasing device through the detection mechanism and the repair mechanism in sequence and connect it to the collection device;

[0034] S2, passing current through both ends of the cable and transmitting the cable horizontally toward the collection device;

[0035] S3, the first driving device drives the detection ring to rotate on the outer surface of the cable, and when the leakage detection device detects the presence of a leakage current signal on the detection ring, the fault point of the cable insulation layer is recorded;

[0036] S4. When the fault point of the cable insulation layer is at the position of the repair mechanism, the first driving device stops moving, the cable stops transmitting, the clamping assembly drives the multiple glue coating members to clamp the outer wall of the cable, the glue injection device applies glue to the outer wall of the cable through the glue coating members, and the second driving device drives the glue coating device to rotate so that the glue coating members evenly coat the glue on the outer wall of the cable;

[0037] S5. After the glue coating is completed, the glue-coated part is separated from the cable, and the cable continues to be transmitted. When the glue-coated cable is transmitted to the drying box, the cable at the glue-coated part is baked in the drying box to solidify the glue;

[0038] S6. The repaired cable is reeled and recovered through a collection device, thus completing the cable insulation performance test and repair.

[0039] Compared with the prior art, the present invention has the following beneficial effects:

[0040] (1) The cable insulation performance detection and repair device disclosed in the present invention can realize the smooth release of the cable through the cable release device, and cooperate with the detection ring and leakage detection device in the detection mechanism to accurately detect the damaged position of the cable insulation layer and obtain the leakage signal in real time, so as to locate the insulation defect. The rotation of the detection ring and the high-precision measurement of the leakage detection device ensure that there is no blind spot on the cable surface, and improve the detection efficiency and accuracy. The repair mechanism can quickly and evenly apply glue to the damaged part of the cable insulation layer through the automated glue injection and glue coating device after detecting the damaged point, and use the drying box to accelerate the repair process, ensure the glue solidification, and restore the insulation performance of the cable. The automation and coordinated work of each mechanism in the entire device greatly improve the speed and quality of cable insulation performance detection and repair, avoid the problem of uneven repair or missed detection caused by improper operation or inefficiency in traditional manual operation, and significantly improve the safety, reliability and construction efficiency before cable construction.

[0041] (2) By setting the detection ring as a plurality of arc-shaped plates evenly surrounding the first mounting hole, and adjusting the relative positions of the arc-shaped plates by the first adjustment device, the detection ring can adapt to cables of different diameters. This structural setting enables the detection mechanism to flexibly cope with cables of different specifications without the need to replace detection rings of different sizes, greatly improving the versatility and ease of operation of the device.

[0042] (3) By setting a roller on the inner wall of the arc plate, the friction between the arc plate and the cable surface can be reduced. By setting the floating component, when the cable surface is not completely flat, under the action of the first elastic component, the arc plate can make fine adjustments as the shape of the cable changes, maintain uniform contact pressure, and improve the accuracy of detection. (4) By setting a cavity inside the glue coating component, the rod of the glue coating component is rotatably sealed and connected with the hollow rod. At the same time, the cavity, hollow rod, and annular groove of the glue coating component establish a glue flow channel, so that during the rotation of the entire clamping component, the glue can always be injected and flowed through the above-mentioned flow channel, so that the glue can be evenly applied to the outer wall of the cable.

[0043] (5) Through the setting of the cleaning mechanism, pollutants such as dust and impurities on the outer wall of the cable can be removed to avoid being affected during the detection process and to prevent dust and impurities from affecting the subsequent gluing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 It is a three-dimensional structural schematic diagram of the cable insulation performance detection and repair device disclosed in the present invention;

[0046] Figure 2 It is a schematic diagram of the front three-dimensional structure of the detection mechanism disclosed in the present invention;

[0047] Figure 3 It is a schematic diagram of the rear three-dimensional structure of the detection mechanism disclosed in the present invention;

[0048] Figure 4 It is a schematic diagram of the three-dimensional structure of the first adjusting device disclosed in the present invention;

[0049] Figure 5 Figure 4 A partial enlarged view of the middle part;

[0050] Figure 6 It is a three-dimensional structural schematic diagram of the glue coating mechanism disclosed in the present invention;

[0051] Figure 7 It is a three-dimensional structural schematic diagram of the glue coating device and the glue injection device disclosed in the present invention;

[0052] Figure 8 It is a schematic diagram of the three-dimensional structure of the second driving device disclosed in the present invention;

[0053] Fig. 9 It is an exploded schematic diagram of the gluing mechanism disclosed in the present invention;

[0054] Fig.10 A schematic diagram of the planar structure of the gluing mechanism disclosed in the present invention;

[0055] Fig.11 for Fig.10 Plane section view at BB in the middle;

[0056] Fig.12 It is a schematic diagram of the front three-dimensional structure of the cleaning mechanism disclosed in the present invention;

[0057] Fig.13 It is a schematic diagram of the rear three-dimensional structure of the cleaning mechanism disclosed in the present invention;

[0058] Reference numerals:

[0059] 1. Cable releasing device; 11. Pay-off rack; 12. Cable drum; 13. Second slip ring; 4. Cable collecting device;

[0060] 2. Detection mechanism; 21. First fixing frame; 211. First mounting hole; 212. Card slot;

[0061] 22, detection ring; 221, arc plate; 2210, roller;

[0062] 23. First driving device; 231. First motor; 232. First gear;

[0063] 24. leakage detection device; 241. conductive rod; 242. second elastic member; 243. controller;

[0064] 25, first adjusting device; 251, annular supporting plate; 252, annular fixing plate; 253, annular gear plate; 254, positioning rod; 255, driven gear; 256, driving gear; 2541, first tooth; 2561, adjusting knob; 2511, second tooth;

[0065] 26, floating assembly; 261, first elastic member; 262, connecting rod; 263, connecting plate; 2621, limiting part; 2512, first cylinder;

[0066] 3. Repair mechanism; 31. Gluing mechanism; 32. Drying box; 33. Second fixing frame; 331. Second mounting hole;

[0067] 34, glue coating device; 341, clamping assembly; 3411, first annular mounting plate; 3411a, annular groove; 3411b, second cylinder; 3411c, fourth tooth; 3412, second annular mounting plate; 3412a, mounting groove; 3412b, third tooth; 3413, rotating sleeve; 3414, second gear; 3415, second motor; 3416, first slip ring; 3417, first mounting frame; 3418, second mounting frame;

[0068] 342, glue-coated part; 3421, rod; 3422, glue-coated part; 3420, cavity; 3423, glue outlet hole;

[0069] 35. Glue injection device; 351. Glue injection pressure vessel; 352. Sealing ring; 353. Hollow rod; 3531. Glue inlet hole;

[0070] 36. second driving device; 361. third motor; 362. third gear;

[0071] 5. Cleaning mechanism; 51. Third fixing frame; 511. Third mounting hole; 52. Mounting cylinder; 53. Arc clamping plate; 54. Second adjusting device; 55. Third driving device; 56. Brush; 541. Guide rod; 542. Adjusting screw;

[0072] 6. Bottom plate; 7. Conveyor roller. DETAILED DESCRIPTION

[0073] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0074] like Figure 1 As shown, combined Figure 2-11 The embodiment of the present invention discloses a cable insulation performance detection and repair device, including a cable releasing device 1, a detection mechanism 2, a repair mechanism 3 and a collecting device 4.

[0075] The cable releasing device 1 is used to release the cable to be tested, so as to ensure that the cable can smoothly undergo subsequent insulation performance testing and repair operations.

[0076] The detection mechanism 2 is arranged on one side of the cable release device 1 and is used to perform insulation performance detection on the cable released by the cable release device 1, mainly including the detection of insulation layer damage. Its main structure includes a first fixing frame 21 and a detection ring 22 arranged on the first fixing frame 21, a first driving device 23 and a leakage detection device 24.

[0077] The first fixing frame 21 supports and fixes the detection ring 22 and other related components to ensure that they remain stable during operation. A first mounting hole 211 is provided on the side wall of the first fixing frame 21, for the detection ring 22 to be installed thereon on one hand, and for the cable to pass through on the other hand.

[0078] The detection ring 22 is arranged at the first mounting hole 211, and is used to directly contact the surface of the cable to obtain the electric field information of the outer surface of the cable. By detecting the change of the electric field on the surface of the cable, it is judged whether the insulation layer is damaged. By detecting the electric field or leakage signal, the damaged position of the cable insulation layer can be accurately detected.

[0079] The first driving device 23 is used to drive the detection ring 22 to rotate on the outer surface of the cable to ensure that the detection ring 22 performs a comprehensive detection on the outer surface of the cable. Through the rotational movement, the detection ring 22 can cover the entire surface of the cable to avoid missing detection. The rotation process can improve the efficiency of the detection and ensure the uniformity of the detection.

[0080] The leakage detection device 24 is used to obtain the leakage current signal on the detection ring 22. When the detection ring 22 contacts the cable, the leakage detection device 24 can monitor and obtain the leakage current signal in real time, and obtain the fault position of the cable insulation layer, so as to transmit the signal to the subsequent repair mechanism 3 and wait for the repair mechanism 3 to repair the fault point.

[0081] The repair mechanism 3 is arranged on the side of the detection mechanism 2 away from the cable release device 1, and is used to repair the fault point of the cable insulation layer when receiving the leakage current signal. The repair mechanism 3 includes a glue coating mechanism 31 and a drying box 32. The glue coating mechanism 31 is located between the detection mechanism 2 and the drying box 32. The glue coating mechanism 31 is responsible for coating the damaged part of the cable insulation layer, and the drying box 32 is used to dry the cable after the glue coating, so that the repaired insulation layer hardens quickly and restores the insulation performance of the cable.

[0082] The glue coating mechanism 31 includes a second fixing frame 33 and a glue coating device 34 , a glue injection device 35 and a second driving device 36 which are arranged on the second fixing frame 33 .

[0083] The side wall of the second fixing frame 33 is provided with a second mounting hole 331 coaxial with the first mounting hole 211. The second fixing frame 33 is similar to the first fixing frame 21 and provides stable support. The second mounting hole 331 is used to install the glue coating device 34 and allow the cable to pass through.

[0084] The glue coating device 34 includes a clamping assembly 341 and a plurality of glue coating members 342. The plurality of glue coating members 342 are evenly arranged around the second mounting hole 331. The clamping assembly 341 is used to drive the glue coating members 342 to clamp the outer wall of the cable. When the cable passes through the second mounting hole 331, the plurality of glue coating members 342 are pressed against the outer wall of the cable by the clamping assembly 341. The glue injection device 35 is used to apply glue to the outer wall of the cable through the glue coating members 342. The second driving device 36 is used to drive the glue coating device 34 to rotate. By rotating the glue coating device 34, the glue coating members 342 can evenly apply glue along the outer wall of the cable at the damaged point of the cable, ensuring that the glue of the repaired part is fully applied without leaving any dead corners. After the glue coating of the damaged part of the cable is completed, the clamping assembly 341 can drive the glue coating members 342 to separate from the cable, thereby preventing the glue from adhering to other positions of the cable.

[0085] The cable collecting device 4 is arranged on a side of the repair mechanism 3 away from the detection mechanism 2, and is used to sort and recycle the repaired cables to ensure that the repaired cables can be smoothly constructed.

[0086] The cable insulation performance detection and repair device disclosed in the present invention realizes the smooth release of the cable through the cable release device 1, and cooperates with the detection ring 22 and the leakage detection device 24 in the detection mechanism 2 to accurately detect the damaged position of the cable insulation layer and obtain the leakage signal in real time, so as to locate the insulation defect. The rotation of the detection ring 22 and the high-precision measurement of the leakage detection device 24 ensure that there is no blind spot on the cable surface, and improve the detection efficiency and accuracy. The repair mechanism 3 can quickly and evenly apply glue to the damaged part of the insulation layer of the cable through the automatic glue injection and glue coating device 34 after detecting the damaged point, and use the drying box 32 to accelerate the repair process, ensure the curing of the glue, and restore the insulation performance of the cable. The automation and coordinated work of each mechanism in the whole device greatly improve the speed and quality of cable insulation performance detection and repair, avoid the problem of uneven repair or missed detection caused by improper operation or inefficiency in traditional manual operation, and significantly improve the safety, reliability and construction efficiency before cable construction.

[0087] The detection ring 22 needs to be in continuous contact with the outer wall of the cable during operation, and the inner diameter of the detection ring 22 also needs to match the outer diameter of the cable. In this way, the inner diameter of the detection ring 22 becomes a fixed value, which makes the detection ring 22 only adaptable to cables of one diameter, which has certain limitations. In order to solve the above problems, the present invention proposes the following solution.

[0088] Specifically, as some preferred implementations, refer to the attached Figure 2-5 As shown, the detection ring 22 includes a plurality of arc plates 221 uniformly surrounding the first mounting hole 211, and the plurality of arc plates 221 can surround the outer peripheral wall of the cable. The detection mechanism 2 of this embodiment also includes a first adjustment device 25 on the front side of the first fixing frame 21, which is used to drive the plurality of arc plates 221 to open or close synchronously. Specifically, the function of the first adjustment device 25 is to adjust the relative position of the arc plates 221 so that it can adapt to cables of different diameters. This structural arrangement allows the detection mechanism 2 to flexibly cope with cables of different specifications without the need to replace detection rings 22 of different sizes, which greatly improves the versatility and ease of operation of the device.

[0089] See attached Figure 4 As shown, the first adjustment device 25 of this embodiment includes an annular support plate 251 , an annular fixing plate 252 , an annular gear plate 253 , a positioning rod 254 , a driven gear 255 and a driving gear 256 .

[0090] The annular support disk 251 is coaxially rotatably arranged at the first mounting hole 211, the number of positioning rods 254 is consistent with the number of arc plates 221, one end of the positioning rod 254 is slidably arranged on the surface of the annular support disk 251, and the other end is connected to the arc plate 221, and the side wall of the positioning rod 254 is provided with a first tooth 2541, and the positioning rod 254 is horizontally arranged along the radial direction of the annular support disk 251. By sliding the positioning rod 254 horizontally on the annular support disk 251, the distance between the arc plate 221 and the center of the first mounting hole 211 can be adjusted.

[0091] The number of driven gears 255 is the same as the number of positioning rods 254. The driven gears 255 are rotatably arranged on the annular support plate 251, and are located on one side of the corresponding positioning rod 254 and meshed with the first teeth 2541. The annular toothed plate 253 is horizontally arranged above the positioning rod 254, and the inner teeth of the annular toothed plate 253 are meshed with the multiple driven gears 255. Through the rotation of the annular toothed plate 253, the multiple driven gears 255 can be synchronously driven to rotate, and the driven gears 255 drive the positioning rod 254 to move horizontally through the first teeth 2541, thereby ensuring that the multiple positioning rods 254 are synchronously extended and retracted, and then the opening and closing sizes of the multiple arc plates 221 are adjusted to adapt to the detection of cables with different diameters.

[0092] The annular fixed disk 252 is located outside the annular toothed disk 253 and is fixedly connected to the annular support disk 251. The driving gear 256 is rotatably arranged between the annular fixed disk 252 and the annular support disk 251, and the driving gear 256 is meshed with the outer teeth of the annular toothed disk 253. The central axis of the driving gear 256 movably passes through the outside of the annular fixed disk 252 and is connected with an adjusting knob 2561. The rotation of the driving gear 256 is directly controlled by rotating the adjusting knob 2561, and then the opening and closing size of the arc plate 221 is adjusted. The setting of the adjusting knob 2561 improves the convenience and accuracy of the adjustment process. In this embodiment, when the cable passes through the detection mechanism 2, the repair mechanism 3 and is connected to the collection device, the length of the multiple arc plates 221 is adjusted by operating the adjusting knob 2561 and using the gear mechanical transmission method, so as to ensure that the inner wall of the arc plate 221 can contact the outer wall of the cable.

[0093] Since there are gaps between the multiple arc plates 221, the first driving device 23 drives the first adjusting device 25 to rotate around the first mounting hole 211, so that the multiple arc plates 221 can contact the cable without dead angles during rotation, thereby improving detection reliability.

[0094] Since the inner wall of the arc plate 221 and the outer wall of the cable are in surface contact, during the rotation process, the friction between the inner wall of the arc plate 221 and the outer wall of the cable may cause damage to the insulation layer of the cable. For this reason, the present invention also adopts the following technical solution to solve the problem.

[0095] See attached Figure 4 and 5 As shown, in this embodiment, a plurality of rollers 2210 are evenly rotated on the central axis of the first mounting hole 211 on the inner wall of the arc plate 221, and the axial direction of the rollers 2210 is parallel to the axial direction of the first mounting hole 211. The rollers 2210 are arranged on the inner wall of the arc plate 221, and their main function is to reduce the friction between the arc plate 221 and the surface of the cable. By rolling rather than directly contacting the cable, the rollers 2210 can effectively reduce the risk of wear on the insulation layer of the cable and protect the cable from damage. In addition, the arrangement of the rollers 2210 can also ensure that the arc plate 221 maintains a uniform contact pressure during the detection process, thereby improving the accuracy of the detection.

[0096] Since the cable insulation layer adopts the extrusion process, the outer surface of the cable insulation layer is not completely smooth, but has certain depressions or protrusions. In order to make the roller 2210 fully contact the outer surface of the cable, the present embodiment further sets a floating assembly 26 between the arc plate 221 and the positioning rod 254. The floating assembly 26 includes a first elastic member 261, a connecting rod 262 and a connecting plate 263. The connecting plate 263 is vertically fixed to the end of the positioning rod 254 facing the arc plate 221. One end of the connecting rod 262 is fixedly connected to the outer wall of the arc plate 221, and the other end movably passes through the connecting plate 263 and is connected to the limited portion 2621. The first elastic member 261 is sleeved on the connecting rod 262 between the connecting plate 263 and the arc plate 221. With this arrangement, when the surface of the cable is not completely flat, under the action of the first elastic member 261, the arc plate 221 can be fine-tuned as the shape of the cable changes, maintaining uniform contact pressure and improving the accuracy of detection.

[0097] In order to realize that the leakage detection device 24 can detect the leakage of the detection ring 22, refer to the attached Figure 3 As shown, the solution adopted in this embodiment is: a first cylinder 2512 is fixedly arranged at the center of one side of the annular support plate 251 away from the annular fixing plate 252, the first cylinder 2512 passes through the first mounting hole 211 and extends to the rear side of the first fixing frame 21, the leakage detection device 24 includes a conductive rod 241, a second elastic member 242 and a controller 243, a card slot 212 is opened at the rear side of the first fixing frame 21, the conductive rod 241 is slidably arranged in the card slot 212, and the second elastic member 242 It is arranged in the card slot 212, and the two ends of the second elastic member 242 are respectively abutted against one end of the conductive rod 241 and the inner wall of the installation slot 3412a, and the other end of the conductive rod 241 passes through the card slot 212 and abuts against the outer wall of the first cylinder 2512. The conductive rod 241 is electrically connected to the controller 243. The first fixed frame 21 is made of insulating material, and the annular support plate 251, the first cylinder 2512, the positioning rod 254, the floating assembly 26, the arc plate 221 and the roller 2210 are all made of conductive material.

[0098] By adopting the above technical solution, the entire first adjustment device 25 and the plurality of arc plates 221 are driven by the first driving device 23 to rotate relative to the first mounting hole 211. The conductive rod 241 always presses against the outer wall of the first cylinder 2512 under the action of the second elastic member 242. When the cable insulation layer is damaged, the cable in the cable will be sequentially transmitted to the conductive rod 241 through the roller 2210, the arc plate 221, the floating assembly 26, the positioning rod 254, the annular support plate 251, and the first cylinder 2512. The conductive rod 241 transmits the current to the controller 243, thereby obtaining a leakage current signal and obtaining the position of the damaged portion of the cable at the same time, so that the damaged portion of the cable can be transmitted to the gluing mechanism 31, and the gluing mechanism 31 can perform gluing repair in time.

[0099] See attached Figure 2-4 As shown, the first driving device 23 of this embodiment includes a first motor 231 and a first gear 232. The outer peripheral wall of the annular support disk 251 is provided with a second tooth 2511. The first gear 232 is rotatably arranged at the front side of the first fixed frame 21 and meshes with the second tooth 2511. The first motor 231 is fixedly arranged at a side of the first fixed frame 21 away from the first adjustment device 25. The output shaft of the first motor 231 passes through the first fixed frame 21 and is fixedly connected to the first gear 232. The first motor 231 drives the first gear 232 to rotate, and the first gear 232 is meshed with the second tooth 2511 to drive the annular support disk 251 to rotate, thereby driving the entire first adjustment device 25 and the detection ring 22 to rotate, ensuring that the detection ring 22 can always contact with the outer surface of the cable during the rotation process, thereby improving the detection accuracy and reliability.

[0100] This embodiment shows a preferred implementation of the clamping assembly 341. Figure 6 , 7 As shown in FIG. 9 , the clamping assembly 341 includes a first annular mounting plate 3411 , a second annular mounting plate 3412 , a rotating sleeve 3413 , a second gear 3414 , a second motor 3415 , a first slip ring 3416 , a first mounting frame 3417 , and a second mounting frame 3418 .

[0101] The first annular mounting plate 3411 is the basis of the entire clamping assembly 341, which is rotatably arranged at the front side of the second fixing frame 33 and coaxial with the second mounting hole 331. The second driving device 36 is arranged at the rear side of the second fixing frame 33 to drive the first annular mounting plate 3411 to rotate. The second annular mounting plate 3412 is coaxially rotatably arranged at a side of the first annular mounting plate 3411 away from the second fixing frame 33. The outer wall of the second annular mounting plate 3412 is evenly provided with mounting grooves 3412a equal to the number of the rubber coating member 342, and the mounting grooves 3412a penetrate the inner wall of the second annular mounting plate 3412. The outer wall of the second annular mounting plate 3412 is provided with third teeth 3412b.

[0102] The glue coating part 342 includes a rod portion 3421 and a glue coating portion 3422. The glue coating portion 3422 is located on the inner side of the second annular mounting disk 3412. The glue coating portion 3422 is circular. One end of the rod portion 3421 is fixedly connected to the glue coating portion 3422, and the other end horizontally passes through the mounting groove 3412a and is rotatably connected to the first annular mounting disk 3411. The rotating sleeve 3413 is sleeved on the outer side of the rod portion 3421 and is rotatably arranged in the mounting groove 3412a. The rod portion 3421 can slide relative to the rotating sleeve 3413.

[0103] The first mounting frame 3417 is fixedly disposed on the first annular mounting plate 3411 , the second motor 3415 is fixedly disposed on the first mounting frame 3417 , and the output shaft of the second motor 3415 is meshedly connected with the third gear 3412 b via the second gear 3414 .

[0104] By adopting the above technical solution, the second gear 3414 is driven to rotate by the second motor 3415, and the second gear 3414 drives the second annular mounting disk 3412 to rotate a certain angle relative to the first annular mounting disk 3411 through the third tooth 3412b. Since the end of the rod 3421 extending out of the outer side of the mounting groove 3412a is rotatably connected to the first annular mounting disk 3411, during the rotation of the first annular mounting disk 3411, the rod 3421 is driven to slide along the rotating sleeve 3413 through the rotating sleeve 3413, thereby realizing the swing of the glue coating part 3422 toward the inner side of the second mounting hole 331, and multiple glue coating parts 3422 swing toward the inner side of the second mounting hole 331 at the same time to realize contact with the outer wall of the cable, thereby realizing effective resistance and glue coating on the outer wall of the cable. When the glue coating is completed, the glue coating part 342 will be separated from the outer wall of the cable under the action of the clamping assembly, thereby preventing the glue on the glue coating part 3422 from adhering to the outer wall of the cable.

[0105] Since the entire clamping assembly 341 and the glue coating member 342 constitute the glue coating device 34, the glue coating device 34 needs to be driven by the second driving device 36 to rotate. Since the second motor 3415 is fixed on the first annular mounting plate 3411, the glue coating device 34 will drive the second motor 3415 to rotate synchronously when it rotates. Therefore, by fixing the second fixing frame 33 on the front side of the second fixing frame 33, a threading hole coaxial with the second mounting hole 331 is provided on the second mounting frame 3418, and the first slip ring 3416 is fixedly arranged in the threading hole and slidably connected with the electrode of the second motor 3415. In this way, the second motor 3415 can establish an electrical connection through the first slip ring 3416 during the rotation process.

[0106] In order to realize that the glue coating device 34 can provide glue to the glue coating member 342 during the rotation process, refer to the attached Figure 7 , 10As shown in Figure 11, this embodiment shows a preferred structural mode of the glue injection device 35. Specifically, the glue injection device 35 includes a glue injection pressure container 351, a sealing ring 352 and a hollow rod 353. The outer peripheral wall of the first annular mounting plate 3411 is provided with an annular groove 3411a. The sealing ring 352 is fixedly arranged on the front side of the second fixing frame 33, and the sealing ring 352 is sleeved on the outer peripheral side of the first annular mounting plate 3411 and is rotatably sealed and connected with the annular groove 3411a. The glue injection pressure container 351 is fixedly arranged on the top surface of the second fixing frame 33. The glue injection port of the device 351 passes through the sealing ring 352 and is connected to the annular groove 3411a, the hollow rod 353 is vertically fixed to the surface of the first annular mounting plate 3411 and is connected to the annular groove 3411a, the side of the rod portion 3421 away from the glue coating portion 3422 is rotatably sealed and connected to the hollow rod 353, a cavity 3420 is provided inside the glue coating member 342, and a glue inlet hole 3531 connected to the cavity 3420 is opened on the outer peripheral wall of the hollow rod 353, and a plurality of glue outlet holes 3423 are opened on the side of the glue coating portion 3422 facing the second mounting hole 331.

[0107] Thus, when the glue coating part 3422 on the glue coating member 342 is driven to contact the outer wall of the cable through the clamping assembly 341, the repair glue is injected into the annular groove 3411a through the glue injection pressure container 351. Since the annular groove 3411a and the sealing ring 352 are in a rotating sealing connection, the glue will be filled in the annular groove 3411a. The glue enters each hollow rod 353 in the annular groove 3411a, and then enters the cavity 3420 of the glue coating member 342 through the glue inlet hole 3531 on the outer wall of the hollow rod 353. The glue then flows out through the glue outlet hole 3423 on the glue coating part 3422, thereby being smeared on the outer wall of the cable.

[0108] A cavity 3420 is set inside the glue coating member 342, and the rod portion 3421 of the glue coating member 342 is rotatably sealed and connected with the hollow rod 353. At the same time, the cavity 3420 of the glue coating member 342, the hollow rod 353, and the annular groove 3411a establish a glue flow channel, so that during the rotation of the entire clamping assembly, the glue can always be injected and flowed through the above-mentioned flow channel, so that the glue can be evenly applied to the outer wall of the cable.

[0109] In the above embodiment, the glue injection pressure container 351 contains glue, and the glue outflow rate can be controlled by pressurizing the container.

[0110] In order to realize that the second driving device 36 drives the glue coating device 34 to rotate, refer to the attached Figure 8As shown, in this embodiment, a second cylinder 3411b is fixedly arranged at the center of one side of the first annular mounting plate 3411 away from the second annular mounting plate 3412, and a fourth tooth 3411c is arranged on the outer peripheral wall of the second cylinder 3411b. The second cylinder 3411b passes through the second mounting hole 331 and extends to the rear side of the second fixing frame 33. The second driving device 36 includes a third motor 361 and a third gear 362. The third motor 361 is fixedly arranged on the second fixing frame 33, and the output shaft of the third motor 361 is meshed and connected with the fourth tooth 3411c through the third gear 362. Thus, the third motor 361 drives the third gear 362 to rotate, and the third gear 362 meshes with the fourth tooth 3411c, thereby driving the second cylinder 3411b to rotate, thereby realizing the rotation of the clamping assembly 341, and finally realizing the rotation of the glue coating device 34. During the rotation process, the sealing ring 352 always ensures dynamic sealing connection with the first annular mounting plate 3411, ensuring that the glue is in a sealed flow state.

[0111] In order to achieve the accuracy of the cable insulation performance detection process and ensure that the subsequent glue can effectively combine with the damaged part of the cable, the present embodiment further provides a cleaning mechanism 5, which is away from the side of the repair mechanism 3. Fig.12 and 13 As shown, it includes a third fixing frame 51, a mounting tube 52, an arc-shaped clamping plate 53, a second adjusting device 54 and a third driving device 55.

[0112] The side wall of the third fixing frame 51 is provided with a third mounting hole 511 coaxial with the first mounting hole 211, and the mounting tube 52 is horizontally rotatably arranged in the third mounting hole 511. Two arc-shaped clamping plates 53 are provided, and the two arc-shaped clamping plates 53 are coaxially arranged in the mounting tube 52. The inner side wall of the arc-shaped clamping plate 53 is provided with bristles 56; the second adjusting device 54 is arranged between the arc-shaped clamping plate 53 and the mounting tube 52, and includes a guide rod 541 and an adjusting screw 542. One end of the adjusting screw 542 is connected to the arc-shaped clamping plate 53. The arc-shaped clamping plate 53 is rotatably connected to the outer wall in the radial direction, and the other end passes through the mounting tube 52 vertically upward and is threadedly connected to the mounting tube 52. Two guide rods 541 are provided, which are symmetrically arranged on both sides of the adjusting screw 542 along the axial direction of the arc-shaped clamping plate 53. One end of the guide rod 541 is fixedly connected to the arc-shaped clamping plate 53, and the other end moves vertically upward through the mounting tube 52. The third driving device 55 is arranged on the rear side of the third fixed frame 51, and is used to drive the mounting tube 52 to drive the arc-shaped clamping plate 53 to rotate.

[0113] By adopting the above technical solution, the spacing between the two arc-shaped clamping plates 53 is adjusted by the second adjusting device 54 according to the diameter of the cable. Specifically, by screwing the adjusting screw 542, the adjusting screw 542 moves up and down relative to the mounting tube 52, thereby driving the arc-shaped clamping plate 53 to move up and down. The function of the guide rod 541 is to keep the arc-shaped clamping plate 53 only able to move up and down. The mounting tube 52 is driven to rotate by the third driving device 55, which can ensure that the mounting tube 52 and the two arc-shaped clamping plates 53 rotate synchronously, and realize the rotation of the bristles 56 on the outer wall of the cable to remove pollutants on the outer wall of the cable, such as dust and impurities, to avoid being affected during the detection process, and to avoid dust and impurities affecting subsequent gluing operations.

[0114] This embodiment is also provided with a bottom plate 6, and a cleaning mechanism 5, a detection mechanism 2 and a repair mechanism 3 are fixedly arranged on the bottom plate 6 in sequence and at intervals. A transmission roller is also arranged on the side of the cleaning mechanism 5 away from the detection mechanism 2 to facilitate the linear transmission of the cable. The cable unwinding device 1 and the cable collecting device 4 have the same structure, both of which include a pay-off frame 11, a cable drum 12 and a second slip ring 13. The cable drum 12 is rotatably arranged on the pay-off frame 11, and the rotating part of the second slip ring 13 is fixedly connected to the rotating shaft of the cable drum 12. The fixed part of the second slip ring 13 is fixedly connected to the pay-off frame 11. One end of the cable is used to be electrically connected to the rotating part of the second slip ring 13 through the rotating shaft, and the fixed part of the second slip ring 13 is used to connect electricity. In the above embodiment, the transmission power of the cable can be provided by any one of the cable unwinding device and the collecting device, and of course it can also be provided by the transmission roller.

[0115] The present invention also discloses a cable insulation performance detection and repair method, which utilizes the cable insulation performance detection and repair device described in the first aspect, and comprises the following steps:

[0116] S1, passing the free end of the cable to be tested on the cable release device 1 through the detection mechanism 2 and the repair mechanism 3 in sequence and connecting them to the collection device;

[0117] S2, passing current through both ends of the cable and transmitting the cable horizontally toward the collection device;

[0118] S3, the first driving device 23 drives the detection ring 22 to rotate on the outer surface of the cable, and when the leakage detection device 24 detects the presence of a leakage current signal on the detection ring 22, the fault point of the cable insulation layer is recorded;

[0119] S4, when the fault point of the cable insulation layer is at the position of the repair mechanism 3, the first driving device 23 stops moving, the cable stops transmitting, the clamping assembly 341 drives the multiple glue coating members 342 to clamp the outer wall of the cable, the glue injection device 35 applies glue to the outer wall of the cable through the glue coating members 342, and the second driving device 36 drives the glue coating device 34 to rotate, so that the glue coating members 342 evenly coat the glue on the outer wall of the cable;

[0120] S5. After the glue coating is completed, the glue coating member 342 is separated from the cable, and the cable continues to be transmitted. When the glue-coated cable is transmitted to the drying box 32, the cable at the glue-coated position is baked by the drying box 32 to solidify the glue;

[0121] S6. The repaired cable is reeled and recovered through a collection device, thus completing the cable insulation performance test and repair.

[0122] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable insulation performance detection and repair device, characterized in that: include; A cable releasing device (1), used for releasing the cable to be inspected; A detection mechanism (2) is arranged on one side of the cable unwinding device (1) and is used to detect the insulation performance of the cable released by the cable unwinding device (1). The detection mechanism (2) comprises a first fixing frame (21), a detection ring (22) arranged on the first fixing frame (21), a first driving device (23) and a leakage detection device (24). A first mounting hole (211) is provided on a side wall of the first fixing frame (21). The detection ring (22) is arranged at the first mounting hole (211). The first driving device (23) is used to drive the detection ring (22) to rotate on the outer surface of the cable. The leakage detection device (24) is used to obtain a leakage current signal on the detection ring (22). A repair mechanism (3) is arranged on a side of the detection mechanism (2) away from the cable unwinding device (1), and is used to repair the fault point of the cable insulation layer when receiving a leakage current signal. The repair mechanism (3) comprises a glue coating mechanism (31) and a drying box (32). The glue coating mechanism (31) is located between the detection mechanism (2) and the drying box (32). The glue coating mechanism (31) comprises a second fixing frame (33) and a glue coating device (34), a glue injection device (35) and a second driving device (36) arranged on the second fixing frame (33). The second fixing frame (33) The side wall is provided with a second mounting hole (331) coaxial with the first mounting hole (211); the glue coating device (34) comprises a clamping assembly (341) and a plurality of glue coating members (342); the plurality of glue coating members (342) are evenly arranged around the second mounting hole (331); the clamping assembly (341) is used to drive the glue coating members (342) to clamp the outer wall of the cable; the glue injection device (35) is used to apply glue to the outer wall of the cable through the glue coating members (342); the second driving device (36) is used to drive the glue coating device (34) to rotate; and the drying box (32) is used to dry the glue-coated cable; The cable retracting device (4) is arranged on a side of the repairing mechanism (3) away from the detecting mechanism (2) and is used for retracting the repaired cable.

2. The cable insulation performance detection and repair device according to claim 1, characterized in that: The detection ring (22) comprises a plurality of arc-shaped plates (221) uniformly surrounding the first mounting hole (211); the detection mechanism (2) further comprises a first adjustment device (25) arranged on the front side of the first fixing frame (21) and used for driving the plurality of arc-shaped plates (221) to open or close synchronously; the first driving device (23) is used for driving the first adjustment device (25) to rotate around the first mounting hole (211); the first adjustment device (25) comprises an annular support disk (251), an annular fixing disk (252), an annular toothed disk (253), a positioning rod (254), a driven gear (255) and a driving gear (256); The annular support plate (251) is coaxially rotatably arranged at the first mounting hole (211); the number of positioning rods (254) is consistent with the number of arc-shaped plates (221); one end of the positioning rod (254) is slidably arranged on the surface of the annular support plate (251), and the other end is connected to the arc-shaped plate (221); and the side wall of the positioning rod (254) is provided with a first tooth (2541); The number of driven gears (255) is consistent with the number of positioning rods (254); the driven gears (255) are rotatably arranged on the annular support plate (251), and are located on one side of the corresponding positioning rod (254) and meshedly connected with the first teeth (2541); the annular toothed plate (253) is horizontally arranged above the positioning rod (254); the inner teeth of the annular toothed plate (253) are meshedly connected with the plurality of driven gears (255); The annular fixed disk (252) is located outside the annular toothed disk (253) and is fixedly connected to the annular support disk (251); the driving gear (256) is rotatably arranged between the annular fixed disk (252) and the annular support disk (251), and the driving gear (256) is meshedly connected with the outer teeth of the annular toothed disk (253); the central axis of the driving gear (256) movably passes through the outside of the annular fixed disk (252) and is connected to an adjusting knob (2561).

3. The cable insulation performance detection and repair device according to claim 2, characterized in that: The inner wall of the arc plate (221) is provided with a plurality of rollers (2210) which rotate evenly around the central axis of the first mounting hole (211); the axial direction of the rollers (2210) is parallel to the axial direction of the first mounting hole (211); a floating assembly (26) is also provided between the arc plate (221) and the positioning rod (254); the floating assembly (26) comprises a first elastic member (261), a connecting rod (262) and a connecting plate (263); the connecting plate (263) is vertically fixed to one end of the positioning rod (254) facing the arc plate (221); one end of the connecting rod (262) is fixedly connected to the outer wall of the arc plate (221); the other end movably passes through the connecting plate (263) and is connected to the limiting portion (2621); the first elastic member (261) is sleeved on the connecting rod (262) between the connecting plate (263) and the arc plate (221); The annular support plate (251) includes a first cylinder (2512) fixedly arranged at the center of one side away from the annular fixing plate (252), the first cylinder (2512) passing through the first mounting hole (211) and extending to the rear side of the first fixing frame (21); the leakage detection device (24) includes a conductive rod (241), a second elastic member (242) and a controller (243); a slot (212) is provided on the rear side of the first fixing frame (21), the conductive rod (241) is slidably arranged in the slot (212), and the second elastic member (242) is arranged in the slot (212), the two ends of the second elastic member (242) are respectively abutted against one end of the conductive rod (241) and the inner wall of the mounting groove (3412a), the other end of the conductive rod (241) passes through the slot (212) and abuts against the outer wall of the first cylinder (2512), the conductive rod (241) is electrically connected to the controller (243), the first fixing frame (21) is made of insulating material, the annular support plate (251), the first cylinder (2512), the positioning rod (254), the floating assembly (26), the arc plate (221) and the roller (2210) are all made of conductive material.

4. The cable insulation performance detection and repair device according to claim 2, characterized in that: The first driving device (23) comprises a first motor (231) and a first gear (232); the outer peripheral wall of the annular support plate (251) is provided with a second gear (2511); the first gear (232) is rotatably arranged on the front side of the first fixed frame (21) and meshes with the second gear (2511); the first motor (231) is fixedly arranged on a side of the first fixed frame (21) away from the first adjusting device (25); the output shaft of the first motor (231) passes through the first fixed frame (21) and is fixedly connected to the first gear (232).

5. The cable insulation performance detection and repair device according to claim 1, characterized in that: The clamping assembly (341) includes a first annular mounting plate (3411), a second annular mounting plate (3412), a rotating sleeve (3413), a second gear (3414), a second motor (3415), a first slip ring (3416), a first mounting frame (3417), and a second mounting frame (3418); The first annular mounting plate (3411) is rotatably disposed on the front side of the second fixing frame (33) and is coaxial with the second mounting hole (331); the second driving device (36) is disposed on the rear side of the second fixing frame (33) and is used to drive the first annular mounting plate (3411) to rotate; The second annular mounting plate (3412) is coaxially rotatably arranged on a side of the first annular mounting plate (3411) away from the second fixing frame (33); the outer wall of the second annular mounting plate (3412) is evenly provided with mounting grooves (3412a) equal in number to the number of the rubber coating member (342); the mounting grooves (3412a) penetrate the inner wall of the second annular mounting plate (3412); and the outer wall of the second annular mounting plate (3412) is provided with third teeth (3412b); The glue coating member (342) comprises a rod portion (3421) and a glue coating portion (3422), wherein the glue coating portion (3422) is located inside the second annular mounting plate (3412), and the glue coating portion (3422) is circular in shape, wherein one end of the rod portion (3421) is fixedly connected to the glue coating portion (3422), and the other end of the rod portion (3421) horizontally passes through the mounting groove (3412a) and is rotatably connected to the first annular mounting plate (3411), and the rotating sleeve (3413) is sleeved on the outside of the rod portion (3421) and rotatably disposed in the mounting groove (3412a), and the rod portion (3421) can slide horizontally relative to the rotating sleeve (3413); The first mounting frame (3417) is fixedly arranged on the first annular mounting plate (3411), the second motor (3415) is fixedly arranged on the first mounting frame (3417), the output shaft of the second motor (3415) is meshedly connected with the third tooth (3412b) via the second gear (3414), the second mounting frame (3418) is fixedly arranged on the front side of the second fixing frame (33), the second mounting frame (3418) is provided with a threading hole coaxial with the second mounting hole (331), the first slip ring (3416) is fixedly arranged in the threading hole, and is slidably connected with the electrode of the second motor (3415).

6. The cable insulation performance detection and repair device according to claim 5, characterized in that: The glue injection device (35) comprises a glue injection pressure container (351), a sealing ring (352) and a hollow rod (353); an annular groove (3411a) is formed on the outer peripheral wall of the first annular mounting plate (3411); the sealing ring (352) is fixedly arranged on the front side of the second fixing frame (33); the sealing ring (352) is sleeved on the outer peripheral side of the first annular mounting plate (3411) and is rotatably sealed and connected to the annular groove (3411a); the glue injection pressure container (351) is fixedly arranged on the top surface of the second fixing frame (33); and the glue injection port of the glue injection pressure container (351) passes through the sealing ring (352). The hollow rod (353) is vertically fixed to the surface of the first annular mounting plate (3411) and is in communication with the annular groove (3411a). The side of the rod portion (3421) away from the glue coating portion (3422) is rotatably sealed with the hollow rod (353). A cavity (3420) is provided inside the glue coating member (342). A glue inlet hole (3531) in communication with the cavity (3420) is provided on the outer peripheral wall of the hollow rod (353). The glue coating portion (3422) is provided with a plurality of glue outlet holes (3423) on the side facing the second mounting hole (331).

7. The cable insulation performance detection and repair device according to claim 5, characterized in that: A second cylinder (3411b) is fixedly arranged at the center of one side of the first annular mounting plate (3411) away from the second annular mounting plate (3412); a fourth tooth (3411c) is arranged on the outer peripheral wall of the second cylinder (3411b); the second cylinder (3411b) passes through the second mounting hole (331) and extends to the rear side of the second fixing frame (33); the second driving device (36) comprises a third motor (361) and a third gear (362); the third motor (361) is fixedly arranged on the second fixing frame (33); and the output shaft of the third motor (361) is meshedly connected with the fourth tooth (3411c) via the third gear (362).

8. The cable insulation performance detection and repair device according to claim 1, characterized in that: It also includes a cleaning mechanism (5), which is arranged on a side of the detection mechanism (2) away from the repair mechanism (3), and includes a third fixing frame (51), a mounting tube (52), an arc-shaped clamping plate (53), a second adjustment device (54) and a third driving device (55); The side wall of the third fixing frame (51) is provided with a third mounting hole (511) coaxial with the first mounting hole (211); the mounting tube (52) is horizontally rotatably arranged in the third mounting hole (511); two arc-shaped clamping plates (53) are provided, the two arc-shaped clamping plates (53) are coaxially arranged in the mounting tube (52); and bristles (56) are provided on the inner side walls of the arc-shaped clamping plates (53); The second adjusting device (54) is arranged between the arc-shaped clamping plate (53) and the mounting tube (52), and comprises a guide rod (541) and an adjusting screw (542). One end of the adjusting screw (542) is rotatably connected to the outer wall of the arc-shaped clamping plate (53) in the radial direction, and the other end of the adjusting screw (542) vertically passes through the mounting tube (52) and is threadedly connected to the mounting tube (52). Two guide rods (541) are provided, which are symmetrically arranged on both sides of the adjusting screw (542) along the axial direction of the arc-shaped clamping plate (53). One end of the guide rod (541) is fixedly connected to the arc-shaped clamping plate (53), and the other end of the guide rod (541) vertically moves upward and passes through the mounting tube (52). The third driving device (55) is arranged at the rear side of the third fixing frame (51) and is used to drive the installation cylinder (52) to drive the arc-shaped clamping plate (53) to rotate.

9. The cable insulation performance detection and repair device according to claim 8, characterized in that: It also comprises a bottom plate (6), on which the cleaning mechanism (5), the detection mechanism (2) and the repair mechanism (3) are fixedly arranged in sequence at intervals, and a conveying roller (7) is also arranged on the side of the cleaning mechanism (5) away from the detection mechanism (2); The cable unwinding device (1) and the cable winding device (4) have the same structure, and both comprise a pay-off frame (11), a cable drum (12) and a second slip ring (13); the cable drum (12) is rotatably arranged on the pay-off frame (11); the rotating part of the second slip ring (13) is fixedly connected to the rotating shaft of the cable drum (12); the fixed part of the second slip ring (13) is fixedly connected to the pay-off frame (11); one end of the cable is used to be electrically connected to the rotating part of the second slip ring (13) through the rotating shaft; and the fixed part of the second slip ring (13) is used to connect electricity.

10. A cable insulation performance detection and repair method, which utilizes the cable insulation performance detection and repair device according to any one of claims 1 to 9, characterized in that: The steps include: S1. Pass the free end of the cable to be tested on the cable-releasing device through the detection mechanism and the repair mechanism in sequence and connect it to the collection device; S2, passing current through both ends of the cable and transmitting the cable horizontally toward the collection device; S3, the first driving device drives the detection ring to rotate on the outer surface of the cable, and when the leakage detection device detects the presence of a leakage current signal on the detection ring, the fault point of the cable insulation layer is recorded; S4. When the fault point of the cable insulation layer is at the position of the repair mechanism, the first driving device stops moving, the cable stops transmitting, the clamping assembly drives the multiple glue coating members to clamp the outer wall of the cable, the glue injection device applies glue to the outer wall of the cable through the glue coating members, and the second driving device drives the glue coating device to rotate so that the glue coating members evenly coat the glue on the outer wall of the cable; S5. After the glue coating is completed, the glue-coated part is separated from the cable, and the cable continues to be transmitted. When the glue-coated cable is transmitted to the drying box, the cable at the glue-coated part is baked in the drying box to solidify the glue; S6. The repaired cable is reeled and recovered through a collection device, thus completing the cable insulation performance test and repair.

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