Cable surface defect detection equipment

Abstract

The present invention discloses a cable surface defect detection device, which belongs to the field of cable surface defect detection. A cable surface defect detection device includes a detection box, with an inlet and an outlet respectively opened on both sides of the detection box, and also includes positioning cylinders, which are provided with two groups and are respectively fixed at the two ends of the inner cavity of the detection box, wherein the positioning cylinder close to the inlet side is provided with a processing part for processing the cable surface, and the positioning cylinder close to the outlet side is provided with a detection part for detecting the cable surface; the present invention continuously pulls the cable after passing through the detection box, cooperates with the setting of the processing ring and the detection ring, so as to quickly perform surface defect detection on the entire cable; and through the rotation of the processing ring, cooperates with the repulsion of the first magnetic plate and the piston plate, sprays fluorescent lubricant on the surface of the pulled cable, so that the laser detector can more accurately identify defects, thereby improving the detection accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of cable surface defect detection, and in particular to a cable surface defect detection device. Background Art

[0002] As the main carrier of power transportation, cables are indispensable in power engineering. Among them, cross-linked polyethylene high-voltage cables are widely used in underground cable networks as a cable material with high insulation, good thermosetting and simple structure. However, during the production, installation and transportation of high-voltage cables, problems such as scratches and damage to the insulation layer are inevitable, resulting in gaps between the cable and the insulating sheath, which can easily lead to serious safety accidents. Therefore, in order to ensure the safety of high-voltage cables, surface defect detection before use is an essential and important step.

[0003] At present, the surface defect detection of high-voltage cables is mainly based on human naked eyes or manual handheld detection equipment, which has low detection efficiency. In the process of manual operation, it is difficult to achieve comprehensive detection of cables, and parts are often missed. In addition, there are usually some attachments (such as dust, cable insulation sheet debris, etc.) in the cable defects, which will hinder the detection and reduce the accuracy of the final detection results. Therefore, a cable surface defect detection device is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art that manual inspection is inefficient and difficult to achieve comprehensive inspection of cables; and that there are usually attachments in cable defects that hinder inspection and have an adverse effect on the accuracy of the final inspection results. A cable surface defect detection device is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A method for detecting cable surface defects comprises the following steps:

[0007] Step 1: After passing the cable to be tested through the testing equipment, pull it forward;

[0008] Step 2: Spray fluorescent lubricant on the surface of the moving cable;

[0009] Step 3: Apply fluorescent lubricant to the cable surface;

[0010] Step 4: Conduct a comprehensive inspection of the surface defects of the moving cable.

[0011] A cable surface defect detection device comprises a detection box, wherein a line inlet and a line outlet are respectively opened on both sides of the detection box, and threading rollers are rotatably connected in the line inlet and the line outlet. The detection box also comprises: a positioning cylinder, wherein two groups of positioning cylinders are provided and are respectively fixed at both ends of the inner cavity of the detection box, wherein a processing part for processing the cable surface is provided in the positioning cylinder close to the line inlet, and a detection part for detecting the cable surface is provided in the positioning cylinder close to the line outlet; and a liquid storage tank, wherein the liquid storage tank is fixed on the outer wall of the detection box close to the line inlet, wherein the liquid storage tank is communicated with the inner cavity of the line inlet, and the liquid storage tank is provided with a spraying part for spraying fluorescent lubricant to the cable.

[0012] In order to improve the detection accuracy, preferably, the processing part includes a processing ring, and the two groups of positioning rings are fixedly connected on both sides of the inner walls of the positioning cylinders. The processing rings are rotatably connected to the inner ring walls of the two groups of positioning rings close to the line inlet. Multiple groups of cleaning cottons are fixed at equal intervals on the inner ring walls of the processing rings, and the distance between the two symmetrically arranged groups of cleaning cottons is smaller than the cable diameter. Linkage grooves are provided on the tops of the two groups of positioning cylinders, and linkage gears are rotatably connected in the linkage grooves. A dual-axis motor is fixedly connected to the top of the inner cavity of the detection box, and driving gears are fixedly connected on both sides of the rotating shaft of the dual-axis motor. A cleaning gear is fixedly connected to the outer ring wall of the processing ring, and the cleaning gear is meshed with the linkage gear and the driving gear close to the line inlet.

[0013] In order to achieve comprehensive detection, preferably, the detection part includes a detection ring, which is rotatably connected to the inner ring walls of two groups of positioning rings close to the wire outlet side, and a detection gear is fixedly connected to the outer ring wall of the detection ring. The detection gear is meshed with the linkage gear and the driving gear close to the wire outlet side, and two groups of laser detectors are symmetrically installed on the inner ring wall of the detection ring.

[0014] To facilitate defect identification, preferably, the spraying part includes a plurality of groups of spraying pipes fixed at equal intervals on the top of the liquid storage tank, and the arrangement direction of the plurality of groups of spraying pipes is parallel to the direction of cable travel, a liquid storage tank is provided at the upper part of the inner cavity of the liquid storage tank, the top end of the spraying pipe is connected with the inner cavity of the liquid storage tank, and a one-way valve is arranged in the spraying pipe, a liquid collecting tank is provided at the bottom of the inner cavity of the liquid storage tank, and liquid guide tubes are fixedly connected on both sides of the outer wall of the liquid storage tank, and the two ends of the liquid guide tubes are respectively connected with the top of the inner cavity of the liquid storage tank and the bottom of the inner cavity of the liquid collecting tank, and a one-way valve is arranged in the liquid guide tube.

[0015] In order to reduce the loss of fluorescent lubricant, further, the two groups of positioning cylinders are fixedly connected with piston rings, and multiple groups of piston chambers are evenly spaced inside the piston rings, and the multiple groups of piston chambers are connected by air guide grooves, and a piston plate is slidably connected inside the piston chamber, and a return spring is fixedly connected between the side wall of the piston plate and the inner wall of the piston chamber, and multiple groups of first magnetic plates are evenly spaced on the outer wall of the processing ring, and there is magnetic repulsion between the first magnetic plates and the piston plates installed on the processing ring, and the number of the first magnetic plates and the piston plates is the same and they are synchronously aligned, and the piston chamber located at the top is connected to the top of the inner cavity of the liquid storage tank through an air guide tube.

[0016] In order to improve the coating effect, preferably, a plurality of groups of second magnetic plates are arranged at equal intervals on the outer wall of the detection ring, the second magnetic plates and the piston plates installed on the detection ring magnetically repel each other, the number of the second magnetic plates and the piston plates is the same and they are synchronously aligned, a first air groove is opened in the positioning cylinder near the side of the line inlet, a second air groove is opened in the positioning ring near the side of the line inlet, a third air groove is opened in the processing ring, the first air groove, the second air groove and the third air groove are connected to each other, a plurality of groups of air outlet grooves are arranged at equal intervals on the side of the third air groove near the cleaning cotton, and the input end of the air outlet groove extends through the cleaning cotton, the top of the inner cavity of the first air groove is connected to the piston chamber near the side of the line outlet through an air blowing pipe, and a one-way valve is provided in the air blowing pipe.

[0017] In order to increase the suction force for extracting the lubricant, further, the piston chamber near the inlet side and the piston chamber near the outlet side are connected through a suction pipe, and a negative pressure solenoid valve is arranged in the suction pipe.

[0018] In order to facilitate the discharge of debris, preferably, the bottom of the positioning cylinder close to the line inlet is fixed and connected to a slag discharge pipe, the bottom end of the slag discharge pipe extends through to the bottom of the detection box, and a plurality of groups of slag discharge grooves are evenly spaced on the inner wall of the processing ring, the slag discharge grooves are connected to the inner cavity of the positioning cylinder, and the two ends of the slag discharge grooves are blocked from the third air groove by partitions.

[0019] Preferably, the processing ring and the detection ring have the same size, and the first magnetic plate and the second magnetic plate have the same size and magnetic force.

[0020] Compared with the prior art, the present invention provides a cable surface defect detection device, which has the following beneficial effects:

[0021] 1. The cable surface defect detection equipment passes the cable through the detection box and then continuously pulls it, and cooperates with the setting of the processing ring and the detection ring to quickly perform surface defect detection on the entire cable, thereby effectively improving the detection efficiency; and through the rotation of the processing ring, in conjunction with the repulsive effect of the first magnetic plate and the piston plate, a fluorescent lubricant is sprayed on the surface of the pulled cable, so that the laser detector can more accurately identify defects, thereby improving the detection accuracy.

[0022] 2. The cable surface defect detection equipment, through the continuous rotation of the cleaning cotton, evenly and effectively applies the fluorescent lubricant sprayed on the surface of the cable to be tested to its defects, so that the laser detector can identify defects more accurately. It can also scrape the surface of the cable to be tested and clean out the attachments in the defects, thereby effectively improving the detection accuracy.

[0023] 3. The cable surface defect detection equipment realizes the recycling and reuse of dripping fluorescent lubricant through the repulsive action of the first magnetic plate and the piston plate in conjunction with the setting of the reset spring, thereby effectively improving the energy-saving effect.

[0024] 4. The cable surface defect detection equipment drives two symmetrically arranged groups of laser detectors to rotate through the detection ring, so as to conduct a comprehensive detection of the entire circumferential surface of the cable to be tested, thereby improving the accuracy of the detection result; at the same time, during the rotation process, the repulsive effect of the second magnetic plate and the piston plate is combined to generate a blowing effect at the cleaning cotton, so as to better push the fluorescent lubricant into the defect, and at the same time blow the debris scraped out by the cleaning cotton away from the cable surface, thereby improving the subsequent detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a cable surface defect detection device proposed by the present invention;

[0026] Figure 2 A schematic diagram of the internal structure of a detection box of a cable surface defect detection device proposed by the present invention;

[0027] Figure 3 A schematic diagram of a side view and half section structure of a cable surface defect detection device proposed by the present invention;

[0028] Figure 4 A cable surface defect detection device proposed by the present invention Figure 3 A schematic diagram of the enlarged structure of the middle A area;

[0029] Figure 5 A cable surface defect detection device proposed by the present invention Figure 3 Schematic diagram of the enlarged structure of the middle B area;

[0030] Figure 6A cable surface defect detection device proposed by the present invention Figure 3 Schematic diagram of the enlarged structure of the middle C area;

[0031] Figure 7 A schematic diagram of the internal structure of a positioning cylinder of a cable surface defect detection device proposed by the present invention;

[0032] Figure 8 A schematic diagram of the internal structure of a piston ring of a cable surface defect detection device proposed by the present invention;

[0033] Fig. 9 A cable surface defect detection device proposed by the present invention Figure 3 Schematic diagram of the enlarged structure of area D in the middle.

[0034] In the figure: 1. detection box; 2. wire inlet; 21. wire outlet; 22. threading roller; 3. positioning cylinder; 31. positioning ring; 32. linkage groove; 33. linkage gear; 4. liquid storage box; 41. spray pipe; 42. liquid storage tank; 43. liquid collecting tank; 431. liquid guide tube; 5. treatment ring; 51. cleaning cotton; 52. cleaning gear; 6. double-axis motor; 61. driving gear; 7. detection ring; 71. detection gear; 72. laser detector; 8. piston ring; 81. piston chamber; 811. air guide groove; 812. air guide pipe; 82. piston plate; 821. reset spring; 83. first magnetic plate; 84. second magnetic plate; 85. first air groove; 851. second air groove; 852. third air groove; 853. air outlet groove; 854. air blowing pipe; 86. suction pipe; 9. slag discharge pipe; 91. slag discharge groove. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] Embodiment 1:

[0038] A method for detecting cable surface defects comprises the following steps:

[0039] Step 1: After passing the cable to be tested through the testing equipment, pull it forward;

[0040] Step 2: Spray fluorescent lubricant on the surface of the moving cable;

[0041] Step 3: Apply fluorescent lubricant to the cable surface;

[0042] Step 4: Conduct a comprehensive inspection of the surface defects of the moving cable.

[0043] Embodiment 2:

[0044] Reference Figure 1-Figure 9 , adopting the detection method in the first embodiment, a cable surface defect detection device is proposed, including a detection box 1, an opening is provided on the side wall of the detection box 1 to facilitate the insertion of cables and daily maintenance and repair, an inlet 2 and an outlet 21 are respectively provided on both sides of the detection box 1, and threading rollers 22 are rotatably connected in the inlet 2 and the outlet 21, and the threading rollers 22 are used to limit the cable and reduce the friction force applied to the cable when it is pulled, and also include: positioning cylinders 3, two groups of positioning cylinders 3 are provided, and are respectively fixed at both ends of the inner cavity of the detection box 1, wherein a processing part for processing the cable surface is provided in the positioning cylinder 3 close to the side of the inlet 2, and a detection part for detecting the cable surface is provided in the positioning cylinder 3 close to the side of the outlet 21; a liquid storage tank 4, the liquid storage tank 4 is fixed on the outer wall of the detection box 1 close to the side of the inlet 2, wherein the liquid storage tank 4 is connected to the inner cavity of the inlet 2, and the liquid storage tank 4 is provided with a spraying part for spraying fluorescent lubricant on the cable.

[0045] Through the arrangement of the above structure, the cable is passed through the detection box 1 and then continuously pulled, and in conjunction with the arrangement of the processing unit and the detection unit, the surface defect detection work of the entire cable can be quickly performed, thereby effectively improving the detection efficiency.

[0046] Reference Figure 1-Figure 4 , wherein the processing part includes a processing ring 5, positioning rings 31 are fixedly connected on both sides of the inner walls of the two groups of positioning cylinders 3, the processing ring 5 is rotatably connected to the inner ring walls of the two groups of positioning rings 31 close to the inlet port 2, a plurality of groups of cleaning cottons 51 are fixed at equal intervals on the inner ring wall of the processing ring 5, and the distance between the two symmetrically arranged groups of cleaning cottons 51 is less than the cable diameter, a linkage groove 32 is provided on the top of the two groups of positioning cylinders 3, a linkage gear 33 is rotatably connected in the linkage groove 32, a dual-axis motor 6 is fixedly connected to the top of the inner cavity of the detection box 1, and driving gears 61 are fixedly connected on both sides of the rotating shaft of the dual-axis motor 6, a cleaning gear 52 is fixedly connected to the outer ring wall of the processing ring 5, and the cleaning gear 52 is meshed with the linkage gear 33 and the driving gear 61 close to the inlet port 2.

[0047] Through the arrangement of the above-mentioned structure, when the processing ring 5 rotates around the cable to be tested, the cleaning cotton 51 will rotate in contact with the surface of the cable to be tested, and the fluorescent lubricant sprayed on the surface of the cable to be tested will be evenly and effectively applied to its defects, so that the thickness of the fluorescent agent at the defective part is greater than that at other parts, so that the laser detector 72 can identify the defect more accurately. As the cleaning cotton 51 scrapes the surface of the cable to be tested, the attachments in the defect can be cleaned out, thereby effectively improving the detection accuracy.

[0048] Reference Figure 1 , Figure 3 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 The spraying part includes a plurality of spraying pipes 41 fixed at equal intervals on the top of the liquid storage tank 4, and the arrangement direction of the plurality of spraying pipes 41 is parallel to the direction of the cable travel. A liquid storage tank 42 is provided at the upper part of the inner cavity of the liquid storage tank 4, and the top of the spraying pipe 41 is connected to the inner cavity of the liquid storage tank 42, and a one-way valve is arranged in the spraying pipe 41. A liquid collecting tank 43 is provided at the bottom of the inner cavity of the liquid storage tank 4, and liquid guide pipes 431 are fixedly connected on both sides of the outer wall of the liquid storage tank 4, and the two ends of the liquid guide pipes 431 are respectively connected to the top of the inner cavity of the liquid storage tank 42 and the bottom of the inner cavity of the liquid collecting tank 43, and a one-way valve is arranged in the liquid guide pipes 431; the two groups of positioning cylinders 3 are fixed A piston ring 8 is fixedly connected, and a plurality of piston chambers 81 are arranged at equal intervals in the piston ring 8, and the plurality of piston chambers 81 are connected through an air guide groove 811, a piston plate 82 is slidably connected in the piston chamber 81, and a return spring 821 is fixedly connected between the side wall of the piston plate 82 and the inner wall of the piston chamber 81, and a plurality of first magnetic plates 83 are arranged at equal intervals on the outer wall of the processing ring 5, and the first magnetic plates 83 and the piston plates 82 installed on the processing ring 5 magnetically repel each other, and the number of the first magnetic plates 83 and the piston plates 82 are the same and are synchronously aligned, and the piston chamber 81 located at the top is connected to the top of the inner cavity of the liquid storage tank 42 through an air guide pipe 812.

[0049] It should be noted that the one-way valve in the spray pipe 41 can only allow the fluorescent lubricating liquid in the liquid storage tank 42 to be sprayed into the liquid storage box 4; the one-way valve in the liquid guide tube 431 can only allow the fluorescent lubricating liquid in the liquid collecting tank 43 to enter the liquid storage tank 42.

[0050] By setting the above structure, when the processing ring 5 rotates, the repulsive effect between the first magnetic plate 83 and the piston plate 82 will cause the piston plate 82 to slide to the side of the compression return spring 821, thereby compressing the gas in the piston chamber 81. At this time, the compressed gas in each group of piston chambers 81 will enter the liquid collecting tank 43 along the air guide groove 811 and the air guide tube 812, thereby increasing the air pressure in the liquid storage tank 42, thereby pushing the fluorescent lubricant in the liquid storage tank 42 to flow into the liquid guide tube 431, and finally pushing open the one-way valve in the liquid guide tube 431, so that the fluorescent lubricant is sprayed on the cable to be tested, so that the surface of the cable to be tested can be lubricated first, so as to reduce the subsequent detection. The friction generated improves the protection effect of the cable; and the fluorescent lubricant can be filled into the defect so that the laser detector 72 can quickly identify the surface defects; and when the first magnetic plate 83 and the piston plate 82 are separated from the repulsive area, the piston plate 82 will be pulled to slide back under the rebound action of the reset spring 821, and suction will be generated in the piston chamber 81. At this time, the suction will also be transmitted to the liquid storage tank 42, and the one-way valve in the liquid guide tube 431 will be opened, so that the fluorescent lubricant dripping into the liquid collection tank 43 is sucked into the liquid collection tank 43 along the liquid guide tube 431 to be replenished into the liquid collection tank 43, thereby realizing the recycling and reuse of the dripping fluorescent lubricant, and effectively improving the energy saving effect.

[0051] Reference Figure 3 , Figure 6 The detection part includes a detection ring 7, which is rotatably connected to the inner ring walls of two groups of positioning rings 31 near the outlet 21. A detection gear 71 is fixedly connected to the outer ring wall of the detection ring 7. The detection gear 71 is meshed with the linkage gear 33 and the driving gear 61 near the outlet 21. Two groups of laser detectors 72 are symmetrically installed on the inner ring wall of the detection ring 7.

[0052] It should be noted that the laser detector 72 adopts existing mature technology and releases ultraviolet light during use. When the surface of the cable is coated with fluorescent lubricant, the ultraviolet laser can more easily identify the location of the defect through the intensity of the fluorescent signal, and then determine the existence of the defect. In addition, after the cable is coated with fluorescent lubricant, the friction on its surface during pulling can be effectively reduced, and in the process of auxiliary detection, the protection of the cable is also improved.

[0053] Through the arrangement of the above structure, while the dual-axis motor 6 drives the driving gear 61 to rotate, the meshing relationship among the driving gear 61, the linkage gear 33 and the detection gear 71 will drive the detection ring 7 to rotate, so that the two groups of symmetrically arranged laser detectors 72 can rotate continuously with the detection ring 7, thereby performing a comprehensive inspection of the entire circumferential surface of the cable to be tested, ensuring that no omissions occur, thereby improving the accuracy of the detection results.

[0054] Reference Figure 2-Figure 6 , wherein a plurality of groups of second magnetic plates 84 are arranged at equal intervals on the outer wall of the detection ring 7, the second magnetic plates 84 and the piston plate 82 installed on the detection ring 7 are magnetically repelled, the number of the second magnetic plates 84 and the piston plate 82 is the same and they are synchronously aligned, a first air groove 85 is provided in the positioning cylinder 3 close to the side of the inlet 2, a second air groove 851 is provided in the positioning ring 31 close to the side of the inlet 2, a third air groove 852 is provided in the processing ring 5, and the first air groove 85, the second air groove 851 and the third air groove 852 are connected to each other The third air groove 852 is provided with a plurality of groups of air outlet grooves 853 at equal intervals on one side close to the cleaning cotton 51, and the input end of the air outlet groove 853 extends through and into the cleaning cotton 51, the top of the inner cavity of the first air groove 85 is connected with the piston bin 81 close to the outlet port 21 through an air blowing pipe 854, and a one-way valve is arranged in the air blowing pipe 854; the piston bin 81 close to the inlet port 2 is connected with the piston bin 81 close to the outlet port 21 through a suction pipe 86, and a negative pressure solenoid valve is arranged in the suction pipe 86.

[0055] It should be noted that the one-way valve in the air blowing pipe 854 can only allow the gas in the piston chamber 81 near the side of the outlet 21 to enter the third air groove 852; the negative pressure solenoid valve in the suction pipe 86 will only open when negative pressure suction is generated in the piston chamber 81 near the side of the inlet 2.

[0056] By setting the above structure, when the detection ring 7 rotates, the repulsive effect between the second magnetic plate 84 and the piston plate 82 will cause the piston plate 82 to slide to one side of the compression return spring 821, thereby compressing the gas in the piston chamber 81. At this time, the compressed gas in each group of piston chambers 81 will enter the third gas groove 852 along the blowing pipe 854, the first gas groove 85 and the second gas groove 851, and finally be discharged outward from the gas outlet groove 853 along the cleaning cotton 51. In this way, when the cleaning cotton 51 rotates, it will blow air to the surface of the cable to be tested, so as to better push the fluorescent lubricant to the defective part. The second magnetic plate 84 and the piston plate 82 are separated from the repulsive area, and the piston plate 82 is pulled to slide back under the rebound action of the reset spring 821, and a suction effect is generated in the piston chamber 81. At this time, the negative pressure solenoid valve in the suction pipe 86 is opened, and the suction effect is transmitted along the suction pipe 86 to the piston chamber 81 on the side of the line inlet 2, thereby increasing the suction effect generated in the liquid storage tank 42, ensuring the smooth suction of the dripping fluorescent lubricant, and improving the circulation effect.

[0057] Reference Figure 3 , Figure 7 and Figure 8Among them, the bottom of the positioning cylinder 3 near the side of the inlet 2 is fixed and connected with a slag discharge pipe 9, the bottom end of the slag discharge pipe 9 extends through and extends to the bottom of the detection box 1, and a plurality of groups of slag discharge grooves 91 are evenly spaced on the inner wall of the processing ring 5. The slag discharge grooves 91 are connected to the inner cavity of the positioning cylinder 3, and the two ends of the slag discharge grooves 91 are blocked from the third air groove 852 by partitions; the blocking function is to prevent the slag discharge grooves 91 from being connected to the third air grooves 852 and interfering with their work; the blown debris will eventually fall into the processing ring 5 along the slag discharge grooves 91, and then be discharged along the slag discharge pipe 9, so as to remove the debris and impurities and ensure the cleanliness of the processing ring 5.

[0058] The processing ring 5 and the detection ring 7 have the same size, and the first magnetic plate 83 and the second magnetic plate 84 have the same size and magnetic force.

[0059] Reference Figure 1-Figure 8In the present invention, when in use, the cable to be tested is first passed through the entire test box 1 along the liquid storage tank 4, the line inlet 2, the processing ring 5, the detection ring 7 and the line outlet 21, and then the cable to be tested is pulled forward continuously by the traction device. At the same time, the dual-axis motor 6 is turned on to drive the driving gears 61 on both sides to rotate. Under the transmission action of the linkage gear 33 and the cleaning gear 52, the processing ring 5 will be driven to rotate around the cable to be tested. At this time, the first magnetic plate 83 will rotate synchronously with the processing ring 5. Under the repulsive action of the first magnetic plate 83 and the piston plate 82, the piston plate 82 will slide to one side of the compression return spring 821, thereby compressing the gas in the piston chamber 81. At this time, the compressed gas in each group of piston chambers 81 will enter the liquid collecting tank 43 along the air guide groove 811 and the air guide tube 812, thereby increasing the air pressure in the liquid storage tank 42, thereby promoting the fluorescent lubricant in the liquid storage tank 42 to flow into the liquid guide tube 431, and finally push open the one-way valve in the liquid guide tube 431, so that the fluorescent lubricant is sprayed on the cable to be tested. In this way, the surface of the cable to be tested can be lubricated first, so as to reduce the friction generated in subsequent detection and improve the protection effect on the cable. Secondly, the fluorescent lubricant can be filled into the defect so that the laser detector 72 can quickly identify its surface defects. At the same time, when the processing ring 5 rotates around the cable to be tested, the cleaning cotton 51 will adhere to the surface of the cable to be tested and rotate, and the fluorescent lubricant sprayed on the surface of the cable to be tested will be evenly and effectively applied to the defect. In this way, the thickness of the fluorescent agent at the defective part is greater than that at other parts, so that the laser detector 72 can identify the defect more accurately. As the cleaning cotton 51 scrapes the surface of the cable to be tested, the attachments in the defect can be cleaned out, thereby effectively improving the detection accuracy. When the first magnetic plate 83 and the piston plate 82 are separated from the repulsive area, the piston plate 82 is pulled to slide back under the rebound action of the reset spring 821, and suction is generated in the piston chamber 81. At this time, the suction is also transmitted to the liquid storage tank 42 and the one-way valve in the liquid guide tube 431 is opened, so that the fluorescent lubricant dripping into the liquid collection tank 43 is sucked into the liquid collection tank 43 along the liquid guide tube 431 to be replenished into the liquid collection tank 43, thereby realizing the recovery and reuse of the dripping fluorescent lubricant and effectively improving the energy saving effect.

[0060] When the dual-axis motor 6 drives the driving gear 61 to rotate, the meshing relationship between the driving gear 61, the linkage gear 33 and the detection gear 71 will drive the detection ring 7 to rotate, so that the two sets of symmetrically arranged laser detectors 72 can rotate continuously with the detection ring 7, thereby performing a comprehensive detection of the entire circumferential surface of the cable to be tested, ensuring that no omissions occur and improving the accuracy of the detection results; and when the detection ring 7 rotates, the repulsive effect between the second magnetic plate 84 and the piston plate 82 will cause the piston plate 82 to return to the compression position. One side of the spring 821 slides, thereby compressing the gas in the piston chamber 81. At this time, the compressed gas in each group of piston chambers 81 will enter the third gas groove 852 along the air blowing pipe 854, the first gas groove 85 and the second gas groove 851, and finally be discharged outward along the cleaning cotton 51 from the air outlet groove 853. In this way, while the cleaning cotton 51 rotates, it will blow air to the surface of the cable to be tested, so as to better push the fluorescent lubricant into the defect, and at the same time, the debris scraped out by the cleaning cotton 51 will be blown away from the cable surface, thereby effectively improving the subsequent detection accuracy. The blown debris will eventually fall into the processing ring 5 along the slag discharge groove 91, and then be discharged along the slag discharge pipe 9, so as to achieve the removal of debris and impurities, and ensure the cleanliness of the processing ring 5. When the second magnetic plate 84 and the piston plate 82 are separated from the repulsive area, the piston plate 82 will be pulled to slide back under the rebound action of the reset spring 821, and suction will be generated in the piston chamber 81. At this time, the negative pressure solenoid valve in the suction tube 86 is opened, and the suction will be transmitted along the suction tube 86 to the piston chamber 81 on the side of the inlet 2, thereby increasing the suction generated in the liquid storage tank 42, ensuring the smooth suction of the dripping fluorescent lubricant and improving the circulation effect.

[0061] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cable surface defect detection device, characterized in that: The invention comprises a detection box (1), wherein a wire inlet (2) and a wire outlet (21) are respectively provided on two sides of the detection box (1), wherein a wire threading roller (22) is rotatably connected to the wire inlet (2) and the wire outlet (21), and further comprises: Positioning cylinders (3), wherein two groups of positioning cylinders (3) are provided and are respectively fixed at two ends of the inner cavity of the detection box (1). Wherein, a processing portion for processing the surface of the cable is arranged in the positioning cylinder (3) on the side close to the cable inlet (2), and a detection portion for detecting the surface of the cable is arranged in the positioning cylinder (3) on the side close to the cable outlet (21); A liquid storage tank (4), wherein the liquid storage tank (4) is fixed on the outer wall of the detection box (1) on a side close to the outlet (21), The liquid storage tank (4) is in communication with the inner cavity of the cable inlet (2), and the liquid storage tank (4) is provided with a spraying portion for spraying fluorescent lubricant onto the cable; The processing section comprises a processing ring (5), both sides of the inner walls of the two groups of positioning cylinders (3) are fixedly connected with positioning rings (31), the processing rings (5) are rotatably connected to the inner ring walls of the two groups of positioning rings (31) close to the inlet (2), a plurality of groups of cleaning cotton (51) are fixedly arranged at equal intervals on the inner ring wall of the processing ring (5), and the distance between the two symmetrically arranged groups of cleaning cotton (51) is less than the diameter of the cable, the tops of the two groups of positioning cylinders (3) are provided with linkage grooves (32), and the linkage grooves (32) are rotatably connected with linkage gears (33), the top of the inner cavity of the detection box (1) is fixedly connected with a double-axis motor (6), and both sides of the rotating shaft of the double-axis motor (6) are fixedly connected with driving gears (61), and the outer ring wall of the processing ring (5) is fixedly connected with a cleaning gear (52), and the cleaning gear (52) is meshedly connected with the linkage gear (33) and the driving gear (61) on the side close to the inlet (2); The detection portion comprises a detection ring (7), the detection ring (7) being rotatably connected to the inner ring walls of two groups of positioning rings (31) on one side close to the wire outlet (21), a detection gear (71) being fixedly connected to the outer ring wall of the detection ring (7), the detection gear (71) being meshedly connected with the linkage gear (33) and the driving gear (61) on the side close to the wire outlet (21), and two groups of laser detectors (72) being symmetrically mounted on the inner ring wall of the detection ring (7); The two groups of positioning cylinders (3) are fixedly connected with piston rings (8), a plurality of groups of piston chambers (81) are arranged at equal intervals in the piston rings (8), and the plurality of groups of piston chambers (81) are connected to each other via air guide grooves (811), a piston plate (82) is slidably connected to the piston chamber (81), a return spring (821) is fixedly connected between the side wall of the piston plate (82) and the inner wall of the piston chamber (81), a plurality of groups of first magnetic plates (83) are arranged at equal intervals on the outer wall of the processing ring (5), the first magnetic plates (83) and the piston plates (82) installed on the processing ring (5) are magnetically repelled from each other, the number of the first magnetic plates (83) and the piston plates (82) are the same and they are synchronously aligned, and the piston chamber (81) located at the top is connected to the top of the inner cavity of the liquid storage tank (4) via an air guide pipe (812); A plurality of groups of second magnetic plates (84) are arranged at equal intervals on the outer wall of the detection ring (7); the second magnetic plates (84) and the piston plate (82) mounted on the detection ring (7) are magnetically repelled from each other; the number of the second magnetic plates (84) and the piston plate (82) are the same and they are synchronously aligned; a first air groove (85) is provided in the positioning cylinder (3) on the side close to the line inlet (2); a second air groove (851) is provided in the positioning ring (31) on the side close to the line inlet (2); and a third air groove (852) is provided in the processing ring (5). ), the first air groove (85), the second air groove (851) and the third air groove (852) are interconnected; a plurality of groups of air outlet grooves (853) are arranged at equal intervals on a side of the third air groove (852) close to the cleaning cotton (51); and an input end of the air outlet groove (853) extends through and into the cleaning cotton (51); an inner cavity top of the first air groove (85) is connected to a piston chamber (81) close to the line outlet (21) via an air blowing pipe (854), and a one-way valve is arranged in the air blowing pipe (854).

2. A cable surface defect detection device according to claim 1, characterized in that: The spraying part comprises a plurality of groups of spraying pipes (41) fixed at equal intervals on the top of the liquid storage tank (4), and the arrangement direction of the plurality of groups of spraying pipes (41) is parallel to the direction of travel of the cable. A liquid storage tank (42) is provided at the upper part of the inner cavity of the liquid storage tank (4), the top end of the spraying pipe (41) is connected to the inner cavity of the liquid storage tank (42), and a one-way valve is provided in the spraying pipe (41). A liquid collecting tank (43) is provided at the bottom of the inner cavity of the liquid storage tank (4), and liquid guide pipes (431) are fixedly connected to both sides of the outer wall of the liquid storage tank (4), and the two ends of the liquid guide pipe (431) are respectively connected to the top of the inner cavity of the liquid storage tank (42) and the bottom of the inner cavity of the liquid collecting tank (43), and a one-way valve is provided in the liquid guide pipe (431).

3. A cable surface defect detection device according to claim 1, characterized in that: The piston chamber (81) on the side close to the line inlet (2) and the piston chamber (81) on the side close to the line outlet (21) are connected via a suction pipe (86), and a negative pressure solenoid valve is provided in the suction pipe (86).

4. A cable surface defect detection device according to claim 3, characterized in that: The bottom of the positioning cylinder (3) near the line inlet (2) is fixed and connected to a slag discharge pipe (9), the bottom end of the slag discharge pipe (9) extends through and below the detection box (1), a plurality of groups of slag discharge grooves (91) are arranged at equal intervals on the inner wall of the processing ring (5), the slag discharge grooves (91) are connected to the inner cavity of the positioning cylinder (3), and the two ends of the slag discharge grooves (91) are blocked from the third gas groove (852) by partitions.

5. The cable surface defect detection device according to claim 1, characterized in that: The processing ring (5) and the detection ring (7) have the same size, and the first magnetic plate (83) and the second magnetic plate (84) have the same size and magnetic force.

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