A high-voltage cable insulation layer repair device for live working

Abstract

The present invention relates to the technical field of high-voltage electrical equipment maintenance, and specifically to a high-voltage cable insulation layer repair device for live operation, comprising a main support, a notch is provided at the top of the main support, and also comprising: a liquid box, the liquid box is mounted on the main support, and insulating repair liquid is placed inside; a first slide rail, the first slide rail has four groups, and rollers are installed through them. After the maintenance worker places the main support on the cable through an insulating rod, as the stepping motor is turned on, the rollers automatically clamp the cable and move on the cable. Under the detection of an electromagnetic induction sensor, the damaged part of the cable can be automatically detected, and then a micro air pump is started to drive a wrapping mechanism to wrap the cable, and the insulating repair liquid in the liquid box is squeezed by the repair mechanism to repair the damaged part. The device has a high degree of automation, greatly reduces the labor intensity of the workers, and has a good repair effect.

Description

Technical Field

[0001] The invention relates to the technical field of high-voltage electrical equipment maintenance, in particular to a high-voltage cable insulation layer repairing device for live working. Background Art

[0002] Overhead lines are exposed to the outdoor environment and are subject to long-term natural weathering and rain erosion, which can easily cause defects such as cable insulation wear, material aging, and loose conductors, thereby interfering with the stability and efficiency of power transmission. Although current line inspection robot technology has been widely used in the detection and identification of line faults, the immediate repair function for local damage to the cable insulation layer is still insufficient, especially robot systems that can autonomously perform repair tasks are extremely rare.

[0003] In response to this situation, the invention with the publication (announcement) number CN117134265A on the China Patent Network proposed an innovative device for repairing the insulation layer of high-voltage cables. The device is designed with an efficient repair operation mechanism, which can automatically and accurately cover and repair the damaged area of ​​the insulation layer of the high-voltage cable using insulating tape, significantly improving the automation level and execution efficiency of the repair operation. At the same time, it is simple to operate and easy to implement.

[0004] However, in the field application environment, high-voltage cables are often erected at high altitudes and continuously exposed to direct sunlight, which may cause the insulation tape used for repair to age faster due to the material characteristics and cause it to fall off. In addition, severe weather conditions (such as strong winds, heavy rains, etc.) will further aggravate the aging process of the tape, shorten its effective service life, and force maintenance personnel to frequently perform secondary repair operations, which invisibly increases the workload. At the same time, the device does not disclose the method for detecting the damaged part, but only describes real-time remote control. If traditional cameras are used for detection, the inspection personnel need to concentrate on observing the screen for a long time during the inspection process, which consumes a lot of energy for the maintenance personnel. When the device is wound with tape, it is impossible to ensure that the tape can be evenly wound on the cable by relying solely on the gear reduction motor. Therefore, its stability and durability have obvious limitations and urgently need to be further optimized and improved. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a high-voltage cable insulation layer repair device for live working, comprising a main body support, a notch is provided at the top of the main body support, and further comprising:

[0006] A liquid box, wherein the liquid box is mounted on the main support and contains insulating repair liquid;

[0007] The first slide rails have four groups, and rollers are installed through each of the first slide rails;

[0008] A support plate, wherein the support plate is mounted on the main support, and a limiting strip is relatively fixed on the main support, and the limiting strip has two groups. The support plate is located between the limiting strips and is gap-connected with the limiting strips and the main support;

[0009] There are two arc-shaped frames, both of which are fixed on the support plate, and electromagnetic induction sensors are installed on the arc-shaped frames to monitor the changes of the magnetic field around the cable;

[0010] A stepper motor, wherein the stepper motor is mounted on the main body bracket and has a self-locking function;

[0011] A synchronous clamping mechanism, which is installed on the main support and connected to the stepping motor and the support plate. The synchronous clamping mechanism drives the support plate to move through the driving force of the stepping motor, and drives the roller to clamp the cable by utilizing the movement of the support plate;

[0012] A moving mechanism, the moving mechanism is installed on the stepping motor and connected to the synchronous clamping mechanism and the support plate. After the synchronous clamping mechanism drives the roller to clamp the cable, the moving mechanism uses the driving force of the stepping motor to drive the roller to drive the main support to move on the cable;

[0013] A micro air pump, which is mounted on the main support and is conductively connected to the liquid box;

[0014] There are two arc-shaped covers, which are arranged oppositely on the support plate;

[0015] A wrapping mechanism, which is mounted on the support plate and connected to the liquid box and the arc cover, and which uses the air pressure generated by a micro air pump to drive the arc cover to wrap the damaged part of the cable;

[0016] The repair mechanism is installed on the liquid box and connected to the arc cover. After the wrapping mechanism drives the arc cover to wrap the damaged part of the cable, the repair mechanism injects the insulating repair liquid in the liquid box into the damaged part of the cable through the air pressure generated by the micro air pump.

[0017] Preferably, the synchronous clamping mechanism includes a second slide rail provided on the support plate, the second slide rail is in an "eight" shape, and there are two of them, respectively penetrating the rotating shaft of the roller, a semicircular wheel 1 is installed on the output shaft of the stepper motor, a fixing frame is installed on the main frame, a semicircular wheel 2 is sleeved on the fixing frame, a sliding rod is installed on the semicircular wheel 1, a sliding groove is provided on the semicircular wheel 2, a connecting plate is fixed to the bottom end of the support plate, and the connecting plate and the semicircular wheel 1 are perpendicular to each other and fit together;

[0018] A reset mechanism is installed on the main frame. After the cable is detected, the reset mechanism drives the roller away from the cable through the reverse rotation of the stepping motor.

[0019] Preferably, the reset mechanism comprises a fixing plate mounted on the main support, a telescopic rod is mounted on the fixing plate, one end of the telescopic rod is fixed to the fixing plate, and the other end is fixed to the connecting plate, and the telescopic rod has a built-in spring.

[0020] Preferably, the moving mechanism includes a bevel gear 1 sleeved on the output shaft of the stepper motor, a shaft 1 is installed on the stepper motor, a bevel gear 2 is sleeved on the shaft 1, the bevel gear 2 and the bevel gear 1 are meshed with each other, a spur gear 1 is sleeved on the shaft 1, and a spur gear 2 is sleeved on the rotating shaft part of the roller.

[0021] Preferably, the wrapping mechanism includes a blocking ring installed in the liquid box, a first piston is installed in the liquid box, one side of the first piston is a closed space formed by the blocking ring and part of the internal space of the liquid box, and the other side is an insulating repair liquid, and a strip through hole is relatively opened on the support plate, and a pressure hood is fixed on the support plate. There are two pressure hoods, and an air pipe is installed on the pressure hood. The other end of the air pipe passes through the strip through hole and then communicates with the liquid box. A push rod is fixed on the arc hood, and the push rod passes through the pressure hood. A second piston is installed on the other end of the push rod, and the second piston blocks the outlet of the pressure hood.

[0022] Preferably, the repair mechanism includes a liquid outlet hole opened on the arc cover, and there are several liquid outlet holes. The support plate is provided with a strip-shaped through hole 2, and there are two strip-shaped through holes 2. An infusion tube is installed on the liquid box, and the other end of the infusion tube is connected to the arc cover.

[0023] Preferably, a square hole is provided on the support plate, a tape wrapping machine is installed on one side of the square hole, a notch 2 is provided on the top of the tape wrapping machine, an insulating tape is installed on the tape wrapping machine, and the insulating tape is wrapped around the damaged part of the cable and its surroundings;

[0024] A cutting mechanism is installed on the main frame, and the cutting mechanism fixes one end of the insulating tape and cuts the insulating tape after winding around a single damaged point.

[0025] Preferably, the cutting mechanism comprises a cylinder mounted on a support plate, a rubber block is mounted on the top of the cylinder, a notch three is formed on the rubber block, a blade is mounted on the cylinder, and the positions of the blade and the notch three correspond to each other.

[0026] Preferably, a sleeve is fixed to the bottom end of the main support, and an anti-slip sleeve is provided on the inner wall of the sleeve.

[0027] Preferably, an insulating rod is installed through the sleeve, the insulating rod is hollow, and air bags are provided at both ends.

[0028] The present invention has at least the following beneficial effects:

[0029] 1. After the maintenance worker places the main bracket on the cable through the insulating rod, as the stepper motor is turned on, the roller automatically clamps the cable and walks on the cable. Under the detection of the electromagnetic induction sensor, the damaged part of the cable can be automatically detected. The operation is simple;

[0030] 2. After the damaged part of the cable is detected, the micro air pump starts to drive the wrapping mechanism to wrap the cable, and the insulation repair liquid in the liquid box is squeezed by the repair mechanism to repair the damaged part. The degree of automation is high, which greatly reduces the labor intensity of workers;

[0031] 3. After the insulation repair liquid has repaired the damaged part of the cable, the tape winding machine wraps the damaged part of the cable and its surroundings with the insulation tape, and then the insulating tape is automatically cut off and the other part is clamped under the action of the cutting mechanism, which is convenient for the subsequent winding of the repair process. On the one hand, the damaged part is further reinforced, and at the same time, the insulation repair liquid is prevented from flowing down the cable, which plays a positive role in the shaping of the insulation repair liquid. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0033] Figure 2 It is a rear view structural schematic diagram of the present invention;

[0034] Figure 3 It is a schematic diagram of the internal structure of the present invention;

[0035] Figure 4 It is a schematic diagram of the exploded structure of the synchronous clamping mechanism of the present invention;

[0036] Figure 5 For the present invention Figure 4 Schematic diagram of the structure at A in the middle;

[0037] Figure 6 It is a schematic diagram of the structure of the translation mechanism of the present invention;

[0038] Figure 7 For the present invention Figure 6 Schematic diagram of the structure at B in the middle;

[0039] Figure 8 It is a schematic diagram of a partial cross-sectional structure of the present invention;

[0040] Fig. 9 For the present invention Figure 8 Schematic diagram of the structure at C in the middle;

[0041] Fig.10 It is a schematic diagram of the internal top view structure of the present invention;

[0042] Fig.11 For the present invention Fig.10 Schematic diagram of the structure at D in the middle;

[0043] Fig.12 It is a schematic diagram of the cross-sectional structure of the insulating rod of the present invention.

[0044] In the figure: 1. main frame; 11. notch 1; 100. sleeve; 101. anti-slip sleeve; 102. insulating rod; 103. airbag; 12. first slide rail; 13. roller; 14. arc frame; 15. electromagnetic induction sensor; 16. stepping motor; 17. micro air pump; 18. arc cover; 2. liquid box; 3. support plate; 31. limit strip; 301. square hole; 302. tape winding machine; 303. notch 2; 304. insulating tape; 4. synchronous clamping mechanism; 41. second slide rail; 42. semicircular wheel 1; 43. fixed frame; 44. semicircular wheel 2; 45. slide rod; 46 , slide groove; 47, connecting plate; 5, reset mechanism; 51, fixed plate; 52, telescopic rod; 53, spring; 6, moving mechanism; 61, bevel gear one; 62, shaft one; 63, bevel gear two; 64, spur gear one; 65, spur gear two; 7, wrapping mechanism; 71, blocking ring; 72, first piston; 73, strip through hole one; 74, air pressure cover; 75, air pipe; 76, push rod; 77, second piston; 8, repair mechanism; 81, liquid outlet; 82, strip through hole two; 83, infusion tube; 9, cutting mechanism; 91, cylinder; 92, rubber block; 93, notch three; 94, blade. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in 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.

[0046] Example 1

[0047] See also Figure 1-12 The present invention provides a technical solution: a high-voltage cable insulation layer repair device for live working, comprising a main frame 1, a notch 11 is provided at the top of the main frame 1, and further comprising:

[0048] The liquid box 2 is mounted on the main support 1 and contains insulating repair liquid;

[0049] The first slide rails 12 have four groups, and rollers 13 are installed through each of the four groups;

[0050] The support plate 3 is installed on the main frame 1. The main frame 1 is relatively fixed with a limiting strip 31. The limiting strip 31 has two groups. The support plate 3 is located between the limiting strips 31 and is gap-connected with the limiting strips 31 and the main frame 1.

[0051] There are two arc frames 14, both of which are fixed on the support plate 3. Electromagnetic induction sensors 15 are installed on the arc frames 14, and the electromagnetic induction sensors 15 monitor the changes of the magnetic field around the cable;

[0052] A stepper motor 16, which is mounted on the main support 1 and has a self-locking function;

[0053] A synchronous clamping mechanism 4 is installed on the main support 1 and is connected to the stepping motor 16 and the support plate 3. The synchronous clamping mechanism 4 drives the support plate 3 to move through the driving force of the stepping motor 16, and drives the roller 13 to clamp the cable by the movement of the support plate 3;

[0054] The moving mechanism 6 is mounted on the stepping motor 16 and connected to the synchronous clamping mechanism 4 and the support plate 3. After the synchronous clamping mechanism 4 drives the roller 13 to clamp the cable, the moving mechanism 6 uses the driving force of the stepping motor 16 to drive the roller 13 to drive the main support 1 to move on the cable;

[0055] A micro air pump 17, which is mounted on the main support 1 and is conductively connected to the liquid box 2;

[0056] There are two arc-shaped covers 18, which are arranged oppositely on the support plate 3;

[0057] The wrapping mechanism 7 is installed on the support plate 3 and connected to the liquid box 2 and the arc cover 18. The wrapping mechanism 7 uses the air pressure generated by the micro air pump 17 to drive the arc cover 18 to wrap the damaged part of the cable;

[0058] The repair mechanism 8 is installed on the liquid box 2 and connected to the arc cover 18. After the wrapping mechanism 7 drives the arc cover 18 to wrap the damaged part of the cable, the air pressure generated by the micro air pump 17 injects the insulating repair liquid in the liquid box 2 into the damaged part of the cable.

[0059] The synchronous clamping mechanism 4 includes a second slide rail 41 provided on the support plate 3. The second slide rail 41 is in an "eight" shape and has two parts, which respectively penetrate the rotating shaft of the roller 13. A semicircular wheel 1 42 is installed on the output shaft of the stepping motor 16. A fixing frame 43 is installed on the main support 1. A semicircular wheel 2 44 is sleeved on the fixing frame 43. A sliding rod 45 is installed on the semicircular wheel 1 42. A sliding groove 46 is provided on the semicircular wheel 2 44. A connecting plate 47 is fixed to the bottom end of the support plate 3. The connecting plate 47 and the semicircular wheel 1 42 are perpendicular to each other and fit closely.

[0060] A reset mechanism 5 is installed on the main frame 1. After the reset mechanism 5 detects the cable, the stepping motor 16 rotates in the opposite direction to drive the roller 13 away from the cable.

[0061] Before the device is started, the semicircular wheel 1 42 and the semicircular wheel 2 44 are in an overlapping state. At this time, the connecting plate 47 is located at the gap between the semicircular wheel 1 42 and the semicircular wheel 2 44. The roller 13 can move freely in the first slide rail 12 to accommodate the cable. The cable is passed through the gap 11 of the main bracket 1, and the stepper motor 16 is turned on. The stepper motor 16 drives the semicircular wheel 1 42 to rotate. Due to a certain friction between the semicircular wheel 2 44 and the connecting plate 47, the semicircular wheel 2 44 does not move. When the semicircular wheel 1 When the slide bar 45 on the wheel 1 42 moves from one end of the slide groove 46 on the semicircular wheel 2 44 to the other end, it drives the semicircular wheel 2 44 to rotate synchronously. At this time, the semicircular wheel 2 44 and the semicircular wheel 1 42 form a circle, squeezing the connecting plate 47. Under the restriction of the limit bar 31, the connecting plate 47 drives the support plate 3 to move horizontally, and the second slide rail 41 on the support plate 3 squeezes the rotating shaft of the roller 13, driving the roller 13 to move along the first slide rail 12, thereby clamping the cable.

[0062] The reset mechanism 5 includes a fixing plate 51 mounted on the main support 1 , a telescopic rod 52 is mounted on the fixing plate 51 , one end of the telescopic rod 52 is fixed to the fixing plate 51 , and the other end is fixed to the connecting plate 47 , and a spring 53 is built into the telescopic rod 52 .

[0063] When the roller 13 clamps the cable, the connecting plate 47 squeezes the telescopic rod 52, driving the spring 53 inside the telescopic rod 52 to compress. After the cable inspection is completed, the insulating rod 102 is connected to the main bracket 1, and the stepper motor 16 rotates in the opposite direction, thereby driving the semicircular wheel 1 42 and the semicircular wheel 2 44 to overlap. As the vacant parts of the semicircular wheel 1 42 and the semicircular wheel 2 44 correspond to the connecting plate 47, the spring 53 returns to its original state, driving the support plate 3 to reset, thereby driving the roller 13 to release the restriction on the cable, and the cable loses its support for the device. Under the action of the device's own gravity, the maintenance personnel can clearly feel the weight change on the top of the insulating rod, and then remove the device for subsequent inspection.

[0064] The moving mechanism 6 includes a bevel gear 1 61 sleeved on the output shaft of the stepper motor 16, a shaft 1 62 is installed on the stepper motor 16, a bevel gear 2 63 is sleeved on the shaft 1 62, the bevel gear 2 63 and the bevel gear 1 61 are meshed with each other, a spur gear 1 64 is sleeved on the shaft 1 62, and a spur gear 2 65 is sleeved on the rotating shaft part of the roller 13.

[0065] After the roller 13 clamps the cable, the rotating shaft of the roller 13 is located at the end of the second slide rail 41, driving the spur gear 2 65 to engage with the spur gear 1 64, and at this time, the semicircular wheel 2 44 and the semicircular wheel 1 42 form a circle, always squeezing the connecting plate 47. At this time, the continuous rotation of the stepper motor 16 will not affect the synchronous clamping mechanism 4. As the output shaft of the stepper motor 16 continues to rotate, the bevel gear 2 63 is driven to rotate, and the bevel gear 2 63 drives the spur gear 1 64 to rotate through the bevel gear 1 61 on the shaft 1 62, and then the spur gear 1 64 drives the roller 13 to rotate through the spur gear 2 65, driving the roller 13 to drive the device to move on the cable.

[0066] The wrapping mechanism 7 includes a blocking ring 71 installed in the liquid box 2, and a first piston 72 is installed in the liquid box 2. One side of the first piston 72 is a closed space formed by the blocking ring 71 and the internal part of the liquid box 2, and the other side is an insulating repair liquid. A strip through hole 73 is relatively opened on the support plate 3, and a gas pressure cover 74 is fixed on the support plate 3. There are two gas pressure covers 74, and an air pipe 75 is installed on the gas pressure cover 74. The other end of the air pipe 75 passes through the strip through hole 73 and then communicates with the liquid box 2. A push rod 76 is fixed on the arc cover 18, and the push rod 76 passes through the gas pressure cover 74. A second piston 77 is installed on the other end of the push rod 76, and the second piston 77 blocks the outlet of the gas pressure cover 74. The friction between the first piston 72 and the liquid box 2 is greater than the friction between the second piston 77 and the gas pressure cover 74.

[0067] When the cable is damaged, the voltage at the damaged part loses the insulation barrier and changes, which is detected by the electromagnetic induction sensor 15. The electromagnetic induction sensor 15 is electrically connected to the micro air pump 17, the tape winding machine 302 and the cylinder 91 mentioned later, which is the prior art. At this time, the roller 13 continues to move forward a short distance so that the damaged part of the cable is located between the arc cover 18, the stepper motor 16 stops working, and the micro air pump 17 starts to inject gas into the space between the first piston 72 and the liquid box 2. At this time, the air pipe 75 transmits this part of the gas into the air pressure cover 74, the pressure in the air pressure cover 74 increases, and the arc cover 18 is driven by the second piston 77 and the push rod 76 to clamp and wrap the cable.

[0068] The repair mechanism 8 includes a plurality of liquid outlet holes 81 opened on the arc cover 18 , and a strip-shaped through hole 2 82 is opened on the support plate 3 , and there are two strip-shaped through holes 2 82 . A liquid infusion tube 83 is installed on the liquid box 2 , and the other end of the liquid infusion tube 83 is connected to the arc cover 18 .

[0069] After the arc cover 18 wraps the cable, the arc cover 18 restricts the second piston 77 from moving further through the push rod 76. As the micro air pump 17 continues to inject gas, the first piston 72 moves to squeeze the insulating repair liquid in the liquid box 2. The insulating repair liquid enters the arc cover 18 through the infusion tube 83, and then flows out from the liquid outlet 81 on the arc cover 18 to repair the damaged part of the cable. After the repair is completed, the micro air pump 17 turns on the negative pressure to drive the arc cover 18 to release the clamping of the cable, and recover the insulating repair liquid in the liquid outlet 81 of the arc cover 18 to prevent the insulating repair liquid from flowing out along the arc cover 18.

[0070] A square hole 301 is provided on the support plate 3, a tape wrapping machine 302 is installed on one side of the square hole 301, a notch 303 is provided on the top of the tape wrapping machine 302, an insulating tape 304 is installed on the tape wrapping machine 302, and the insulating tape 304 is wrapped around the damaged part of the cable and its surroundings;

[0071] A cutting mechanism 9 is installed on the main support 1 , and the cutting mechanism 9 fixes one end of the insulating tape 304 , and cuts the insulating tape 304 after winding around a single damaged point.

[0072] The cutting mechanism 9 includes a cylinder 91 mounted on the support plate 3, a rubber block 92 is mounted on the top of the cylinder 91, one end of the insulating tape 304 is clamped by the rubber block 92 and the cylinder 91, a notch 93 is opened on the rubber block 92, and a blade 94 is mounted on the cylinder 91, and the positions of the blade 94 and the notch 93 correspond to each other.

[0073] When the micro air pump 17 stops working, the stepper motor 16 and the tape winding machine 302 are turned on. In the default state, one end of the insulating tape 304 is clamped by the rubber block 92 and the cylinder 91. The stepper motor 16 accurately controls the rotation speed of the roller 13, so that the insulating tape 304 has a better repair effect when winding the cable. When the winding is about to be completed, the cylinder 91 shaft extends and the rubber block 92 moves away from the cylinder 91. At this time, the insulating tape 304 is partially fitted with the shaft of the cylinder 91 under the action of the tape winding machine 302, and then the cylinder 91 retracts the shaft, and the rubber block 92 drives the insulating tape 304 to approach the blade 94 on the cylinder 91. The end cut by the blade 94 corresponds to the notch 3 93, and the other end is clamped and fixed by the rubber block 92, which is convenient for subsequent repair and winding.

[0074] A sleeve 100 is fixed to the bottom end of the main support 1 , and an anti-slip sleeve 101 is provided on the inner wall of the sleeve 100 .

[0075] Maintenance workers can use an insulating rod to insert into the sleeve 100. The anti-slip sleeve 101 can prevent the device from falling off, and it is also convenient to adjust the angle of the main support 1 to facilitate the contact of the cable.

[0076] An insulating rod 102 is installed through the sleeve 100 . The insulating rod 102 is hollow and has air bags 103 at both ends.

[0077] The hollow insulating rod 102 is light in weight and easy to operate. A worker holds the insulating rod 102 with one hand and squeezes the air bag 103 at the bottom with the other hand, and the air bag 103 at the top can be stuck into the sleeve 100, which is convenient for operation. After the main bracket 1 is partially installed, the insulating rod 102 can be easily removed by simply releasing the hand squeezing the air bag 103.

[0078] It should be noted that the number of revolutions of the tape wrapping machine 302 is an integer, that is, the second notch 303 is always facing upwards, so as to facilitate the separation of the subsequent device from the cable.

[0079] The working principle of the present invention is as follows: a worker overlaps the notch 11 on the main support 1 with the cable through the insulating rod 102, so that the cable passes through the main support 1. In the default state, the semicircular wheel 1 42 and the semicircular wheel 2 44 are in an overlapping state, and the connecting plate 47 is located at the other half of the blank space between the semicircular wheel 1 42 and the semicircular wheel 2 44, and fits with the semicircular wheel 2 44. The stepper motor 16 is turned on, and the stepper motor 16 drives the semicircular wheel 1 42 to rotate. Since there is almost no resistance between the slide groove 46 and the slide rod 45, the semicircular wheel 2 44 does not move. When When the slide bar 45 on the semicircular wheel 1 42 moves from one end of the slide groove 46 on the semicircular wheel 2 44 to the other end, the semicircular wheel 2 44 is driven to rotate synchronously. At this time, the semicircular wheel 2 44 and the semicircular wheel 1 42 form a circle. In this process, the semicircular wheel 1 42 gradually fills the vacant part of the semicircular wheel 2 44, thereby squeezing the connecting plate 47. Under the restriction of the limit bar 31, the connecting plate 47 drives the support plate 3 to move horizontally, and the second slide rail 41 on the support plate 3 squeezes the rotating shaft of the roller 13, driving the roller 13 along The first slide rail 12 moves to clamp the cable. After the roller 13 clamps the cable, the rotating shaft of the roller 13 is located at the end of the second slide rail 41, driving the spur gear 2 65 to mesh with the spur gear 1 64. At this time, the semicircular wheel 2 44 and the semicircular wheel 1 42 form a circle, always squeezing the connecting plate 47. At this time, the continuous rotation of the stepper motor 16 will not affect the synchronous clamping mechanism 4. As the output shaft of the stepper motor 16 continues to rotate, the bevel gear 2 63 is driven to rotate, and the bevel gear 2 63 is driven to rotate. The bevel gear 1 61 on the shaft 1 62 drives the spur gear 1 64 to rotate, and then the spur gear 1 64 drives the roller 13 to rotate through the spur gear 2 65, driving the roller 13 to drive the device to move on the cable. After the semicircular wheel 1 42 and the semicircular wheel 2 44 are controlled by the stepper motor 16 to form a complete circle to squeeze the connecting plate 47, even if the equipment fails or bad weather occurs during the detection, the device can be firmly fixed on the cable, which has the function of automatic limit. At the same time, compared with the electric control, this structure is more stable and reliable;

[0080] When the cable is damaged, the voltage at the damaged part loses the insulation barrier and changes, which is detected by the electromagnetic induction sensor 15. The electromagnetic induction sensor 15 is electrically connected to the micro air pump 17, the tape winding machine 302 and the cylinder 91 mentioned later, which is the prior art. At this time, the roller 13 continues to move forward a short distance, so that the damaged part of the cable is located between the arc cover 18, the stepper motor 16 stops working, and the micro air pump 17 starts to inject gas into the space between the first piston 72 and the liquid box 2. At this time, the air pipe 75 transmits this part of the gas into the air pressure cover 74, and the pressure in the air pressure cover 74 increases, driving the arc through the second piston 77 and the push rod 76. The arc cover 18 clamps and wraps the cable. After the arc cover 18 wraps the cable, the push rod 76 connected to the arc cover 18 restricts the second piston 77 from moving further. As the micro air pump 17 continues to inject gas, the first piston 72 moves to squeeze the insulation repair liquid in the liquid box 2. The insulation repair liquid enters the arc cover 18 through the infusion tube 83 and then flows out from the liquid outlet 81 on the arc cover 18 to repair the damaged part of the cable. After the repair is completed, the micro air pump 17 turns on the negative pressure to drive the arc cover 18 to release the clamping of the cable, and recover the insulation repair liquid in the liquid outlet 81 of the arc cover 18 to prevent the insulation repair liquid from flowing along the The arc cover 18 flows out, and when the micro air pump 17 stops working, the stepper motor 16 and the tape winding machine 302 are turned on. In the default state, one end of the insulating tape 304 is clamped by the rubber block 92 and the cylinder 91. The stepper motor 16 accurately controls the rotation speed of the roller 13, so that the insulating tape 304 has a better repair effect when winding the cable. When the winding is about to be completed, the shaft of the cylinder 91 extends out, and the rubber block 92 moves away from the cylinder 91. At this time, the insulating tape 304 is partially fitted with the shaft of the cylinder 91 under the action of the tape winding machine 302, and then the cylinder 91 retracts the shaft, and the rubber block 92 drives the insulating tape 304 to the blade on the cylinder 91 94 is close to each other, and the end cut by the blade 94 corresponds to the notch three 93, and the other end is clamped and fixed by the rubber block 92, which is convenient for subsequent repair and winding. After the inspection of a single cable is completed, the stepper motor 16 rotates in the opposite direction, thereby driving the semicircular wheel 1 42 and the semicircular wheel 2 44 to overlap. After complete overlap, the semicircular wheel 1 42 and the semicircular wheel 2 44 act synchronously, and the stepper motor 16 drive shaft rotates to drive the vacant parts of the semicircular wheel 1 42 and the semicircular wheel 2 44 to correspond to the connecting plate 47. At this time, the spring 53 returns to its original state, driving the support plate 3 to reset, thereby driving the roller 13 to release the restriction on the cable, and the device can be removed by reusing the insulating rod 102.

[0081] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0082] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-voltage cable insulation layer repair device for live working, comprising a main frame (1), wherein a notch (11) is provided at the top of the main frame (1), characterized in that: Also includes: A liquid box (2), the liquid box (2) being mounted on the main support (1) and containing insulating repair liquid; First slide rails (12), the first slide rails (12) having four groups, and each group having a roller (13) installed therethrough; A support plate (3), the support plate (3) being mounted on the main support (1), a limiting strip (31) being relatively fixed on the main support (1), the limiting strip (31) having two groups, the support plate (3) being located between the limiting strips (31), and being gap-connected to the limiting strips (31) and the main support (1); Arc-shaped frames (14), wherein there are two arc-shaped frames (14), both of which are fixed on the support plate (3), and each of which is equipped with an electromagnetic induction sensor (15), and the electromagnetic induction sensor (15) monitors changes in the magnetic field around the cable; A stepper motor (16), the stepper motor (16) being mounted on the main support (1), and the stepper motor (16) having a self-locking function; A synchronous clamping mechanism (4), the synchronous clamping mechanism (4) being mounted on the main support (1) and connected to the stepping motor (16) and the support plate (3), the synchronous clamping mechanism (4) driving the support plate (3) to move by the driving force of the stepping motor (16), and utilizing the movement of the support plate (3) to drive the roller (13) to clamp the cable; A moving mechanism (6), the moving mechanism (6) being mounted on a stepping motor (16) and connected to the synchronous clamping mechanism (4) and the support plate (3); after the synchronous clamping mechanism (4) drives the roller (13) to clamp the cable, the moving mechanism (6) uses the driving force of the stepping motor (16) to drive the roller (13) to drive the main support (1) to move on the cable; A micro air pump (17), the micro air pump (17) being mounted on the main support (1) and being conductively connected to the liquid box (2); Arc-shaped covers (18), wherein there are two arc-shaped covers (18) arranged opposite to each other on the support plate (3); A wrapping mechanism (7), the wrapping mechanism (7) being mounted on the support plate (3) and connected to the liquid box (2) and the arc-shaped cover (18), the wrapping mechanism (7) utilizing air pressure generated by the micro air pump (17) to drive the arc-shaped cover (18) to wrap the damaged part of the cable; A repair mechanism (8), the repair mechanism (8) being mounted on the liquid box (2) and connected to the arc-shaped cover (18), and after the wrapping mechanism (7) drives the arc-shaped cover (18) to wrap the damaged part of the cable, the repair mechanism (8) injects the insulating repair liquid in the liquid box (2) into the damaged part of the cable through the air pressure generated by the micro air pump (17); The synchronous clamping mechanism (4) comprises a second slide rail (41) provided on the support plate (3), the second slide rail (41) is in an "eight" shape and is provided in two pieces, each of which penetrates through the rotating shaft of the roller (13); a semicircular wheel 1 (42) is installed on the output shaft of the stepping motor (16); a fixing frame (43) is installed on the main frame (1); a semicircular wheel 2 (44) is sleeved on the fixing frame (43); a sliding rod (45) is installed on the semicircular wheel 1 (42); a sliding groove (46) is provided on the semicircular wheel 2 (44); a connecting plate (47) is fixed to the bottom end of the support plate (3); the connecting plate (47) and the semicircular wheel 1 (42) are perpendicular to each other and fit closely; A reset mechanism (5) is installed on the main frame (1), and after the cable is detected, the reset mechanism (5) drives the roller (13) away from the cable through the reverse rotation of the stepping motor (16); The reset mechanism (5) comprises a fixing plate (51) mounted on the main frame (1), a telescopic rod (52) being mounted on the fixing plate (51), one end of the telescopic rod (52) being fixed to the fixing plate (51), and the other end of the telescopic rod (52) being fixed to the connecting plate (47), and a spring (53) being built into the telescopic rod (52); The moving mechanism (6) comprises a bevel gear (61) sleeved on the output shaft of the stepping motor (16); the stepping motor (16) is provided with a shaft (62); a bevel gear (63) is sleeved on the shaft (62); the bevel gear (63) and the bevel gear (61) are meshed with each other; a spur gear (64) is sleeved on the shaft (62); and a spur gear (65) is sleeved on the rotating shaft of the roller (13); The wrapping mechanism (7) comprises a blocking ring (71) installed in the liquid box (2), a first piston (72) is installed in the liquid box (2), one side of the first piston (72) is a closed space formed by the blocking ring (71) and a part of the inside of the liquid box (2), and the other side is an insulating repair liquid, the support plate (3) is provided with a strip-shaped through hole (73) opposite to each other, and a gas pressure cover (74) is fixed on the support plate (3), the gas pressure cover (74) has two gas pressure covers (74), and the gas pressure cover (74) is connected to the gas pressure cover (74). The air pipe (75) has the other end passing through the strip-shaped through hole (73) and then communicating with the liquid box (2). A push rod (76) is fixed on the arc-shaped cover (18). The push rod (76) passes through the air pressure cover (74). A second piston (77) is installed on the other end of the push rod (76). The second piston (77) blocks the outlet of the air pressure cover (74). The friction between the first piston (72) and the liquid box (2) is greater than the friction between the second piston (77) and the air pressure cover (74).

2. The high-voltage cable insulation layer repair device for live working according to claim 1 is characterized in that: The repair mechanism (8) comprises a liquid outlet hole (81) provided on the arc-shaped cover (18), wherein the liquid outlet holes (81) are in plurality; the support plate (3) is provided with a strip-shaped through hole 2 (82), wherein the strip-shaped through hole 2 (82) is in plurality; a liquid infusion tube (83) is connected and installed on the liquid box (2), wherein the other end of the liquid infusion tube (83) is connected to the arc-shaped cover (18).

3. The high-voltage cable insulation layer repair device for live working according to claim 2 is characterized in that: The support plate (3) is provided with a square hole (301), a tape wrapping machine (302) is installed on one side of the square hole (301), a second notch (303) is provided at the top of the tape wrapping machine (302), an insulating tape (304) is installed on the tape wrapping machine (302), and the insulating tape (304) is wrapped around the damaged part of the cable and its surroundings; A cutting mechanism (9) is installed on the main frame (1), and the cutting mechanism (9) fixes one end of the insulating tape (304) and cuts the insulating tape (304) after winding around a single damaged point.

4. The high-voltage cable insulation layer repair device for live working according to claim 3 is characterized in that: The cutting mechanism (9) comprises a cylinder (91) mounted on a support plate (3), a rubber block (92) being mounted on the top of the cylinder (91), one end of the insulating tape (304) being clamped by the rubber block (92) and the cylinder (91), a notch three (93) being formed on the rubber block (92), and a blade (94) being mounted on the cylinder (91), the blade (94) and the notch three (93) being positioned correspondingly; A sleeve (100) is fixed to the bottom end of the main frame (1), and an anti-slip sleeve (101) is provided on the inner wall of the sleeve (100); An insulating rod (102) is installed through the sleeve (100); the insulating rod (102) is hollow, and air bags (103) are provided at both ends.

Images