Self-propelled high-voltage cable on-line monitoring device

Abstract

The invention relates to the technical field of cable monitoring, in particular to a self-propelled high-voltage cable online monitoring device. Comprising a machine shell, a sliding block in an electric sliding rail on the machine shell is fixedly connected with a rotating shell, a sliding block of the electric sliding rail on the rotating shell is fixedly connected with a water absorption shell, the sliding blocks in the electric sliding rail on the water absorption shell which are distributed in a mirror image mode are jointly and fixedly connected with a monitoring shell, and the monitoring shell is slidably connected with the sliding blocks which are distributed in the mirror image mode. The sliding block on the monitoring shell is in sliding connection with a first rotating rod in sliding connection with the machine shell, and the first rotating rod is fixedly connected with a correcting wheel located in the monitoring shell. According to the cable straightening device, the cable which is bent due to free falling is straightened through the matching of the straightening wheels in mirror image distribution, the influence of the bent cable on a monitoring result is prevented, the monitoring precision of the device is improved, the workload of subsequent fault diagnosis is reduced, and fault misjudgment is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of cable monitoring, and in particular to a self-propelled high-voltage cable online monitoring device. Background Art

[0002] Cable electromagnetic monitoring is a technology used to monitor the status of cable systems. It focuses on the electromagnetic field around the cables. This monitoring aims to identify potential problems such as partial discharge, cable damage, insulation aging, etc., so that maintenance personnel can understand the working status of the cables in real time. Some cables are in a freely hanging bending state under normal conditions. When the cable is bent, the shape of the magnetic field around it may change, which will cause the signal pattern detected by the electromagnetic sensor to change, making the analysis results inaccurate. When the cable is bent, stress concentration may also occur at the bend, leading to partial discharge. These partial discharge signals will interfere with electromagnetic detection and make fault diagnosis more complicated, and may even lead to misjudgment of cable faults, affecting subsequent work. Summary of the invention

[0003] In order to overcome the disadvantage that a freely hanging curved cable may cause problems in electromagnetic monitoring results, the present invention provides a straightening self-propelled high-voltage cable online monitoring device.

[0004] The technical implementation scheme of the present invention is as follows: a self-propelled high-voltage cable online monitoring device comprises a housing, the outer side of the housing is fixedly connected with a first fixed frame that is equidistant and mirror-distributed, a first electric rotating shaft is arranged between the first fixed frames that are equidistantly distributed, a rotating wheel is fixedly connected to the first electric rotating shaft, a mirror-distributed electric slide rail is arranged in the housing, a slider in the electric slide rail on the housing is fixedly connected to a rotating shell, the opposite sides of the mirror-distributed rotating shell are both provided with electric slide rails, a water absorption shell is fixedly connected to the slider of the electric slide rail on the rotating shell, the opposite sides of the mirror-distributed water absorption shell are both provided with electric slide rails, and the electric slide rails on the mirror-distributed water absorption shell are A monitoring shell is commonly fixedly connected between the sliders in the movable slide rail, a mirror-distributed fixed plate is fixedly connected to the inner side of the monitoring shell, a mirror-distributed monitoring arc plate is commonly rotatably connected between the mirror-distributed fixed plates, the monitoring shell is slidably connected to the mirror-distributed sliders, the slider on the monitoring shell is slidably connected to a first rotating rod slidably connected to the casing, a tension spring is arranged between the first rotating rod and the adjacent slider, a correction wheel located in the monitoring shell is fixedly connected to the first rotating rod, a correction mechanism for straightening the cable and a positioning mechanism for ensuring the cable monitoring position are arranged on the monitoring shell, and a water-blocking mechanism for removing water is arranged on the water-absorbing shell.

[0005] Preferably, an electric push rod is fixed to each of the first fixed frames distributed in a mirror image on one side, and the housing is slidably connected to first sliding frames that are equidistant and distributed in a mirror image. The telescopic end of the electric push rod is fixed to the adjacent first sliding frame, and fastening wheels are rotatably connected between the first sliding frames distributed in a mirror image.

[0006] Preferably, the correction mechanism includes mirror-distributed power slide rails, the mirror-distributed power slide rails are all fixedly connected in the monitoring shell, the sliders in the mirror-distributed power slide rails are commonly fixedly connected to a second sliding frame, and the mirror-distributed first rotating rods are all limitedly matched with the second sliding frame.

[0007] Preferably, the positioning mechanism includes a first sliding rod, which is slidably connected to the monitoring shell, a spring is arranged between the first sliding rod and the monitoring shell, a rack is arranged on the side of the first sliding rod away from the first rotating rod of the mirror distribution, and a positioning wheel is rotatably connected to the side of the first sliding rod close to the first rotating rod of the mirror distribution, the monitoring shell is rotatably connected to the second rotating rod through a mounting plate, a gear is arranged on the second rotating rod, the gear on the second rotating rod is meshed with the rack on the first sliding rod, a first winding wheel of the mirror distribution is fixedly connected to the second rotating rod, a second winding wheel of the mirror distribution is fixedly connected to one side of the monitoring arc plate of the mirror distribution, and a traction rope is commonly wound around the first winding wheel and the adjacent second winding wheel.

[0008] Preferably, the center of the positioning wheel is located in the mirror plane of the mirror-distributed correction wheel, so as to ensure the monitoring status of the cable.

[0009] Preferably, the water-blocking mechanism includes an equidistant and mirror-distributed second electric rotating shaft, which is respectively arranged in the adjacent water absorption shell and the adjacent rotating shell, and the rotating shell and the water absorption shell are both rotatably connected with a mirror-distributed third rotating rod, and the mirror-distributed second electric rotating shaft and the mirror-distributed third rotating rod are both provided with transmission wheels, and the rotating shell and the water absorption shell are both fixedly connected with a fixed frame, and the transmission wheel on the mirror-distributed second electric rotating shaft and the transmission wheel on the adjacent and mirror-distributed third rotating rod are jointly wound with a rotating belt, the fixed frame is slidably connected to the adjacent rotating belt, and the rotating belt close to the water absorption shell is fixedly connected with a water absorption belt, and the water absorption belt slidably cooperates with the adjacent water absorption shell.

[0010] Preferably, the rotating belt close to the rotating shell is fixed with an anti-slip belt, and the anti-slip belt is slidably matched with the adjacent rotating shell.

[0011] Preferably, a through hole is provided on one side of the water absorption shell, a water squeezing shell is fixedly connected inside the water absorption shell, the water squeezing shell is slidably connected to the adjacent rotating belt and the adjacent water absorption belt, and an extrusion block is fixedly connected inside the water squeezing shell, and the extrusion block is extrusion-matched with the adjacent water absorption belt.

[0012] Preferably, the cross section of the extrusion block is a right-angled trapezoid, the inclined surface of which is close to the adjacent water-absorbing belt, and the inclined surface of which is a twisted surface for gradually squeezing out water.

[0013] Preferably, it also includes a measuring mechanism for measuring the motion state of the device, the measuring mechanism is arranged on the first fixed frame with a mirror image distribution on one side, the measuring mechanism includes a fixed rod with a mirror image distribution, the fixed rod is rotatably connected to the adjacent first fixed frame, the fixed rod is fixedly connected to the adjacent first electric rotating shaft, the housing is slidably connected to a second sliding rod with a mirror image distribution, a spring is arranged between the second sliding rod and the housing, the second sliding rod is frictionally matched with the adjacent fixed rod, a second fixed frame with a mirror image distribution is fixedly connected in the housing, the second fixed frame is slidably connected to a sliding block, a button is arranged on the second sliding rod, the button is electrically connected to the second electric rotating shaft with equal distance and mirror image distribution, the button is extruded and matched with the adjacent sliding block, a telescopic rod with a mirror image distribution is rotatably connected in the housing through a mounting rod, the telescopic end of the telescopic rod is hinged to the adjacent sliding block, and a counterweight ball is fixed to the fixed part of the telescopic rod.

[0014] Compared with the prior art, the present invention has the following advantages: the present invention straightens the cable bent by freely falling through the cooperation of the correction wheel with mirror distribution, prevents the bent cable from affecting the monitoring result, improves the monitoring accuracy of the device, thereby reducing the workload of subsequent fault diagnosis and preventing fault misjudgment; the cable monitoring part is positioned through the cooperation of the positioning wheel and the monitoring arc plate with mirror distribution, thereby ensuring that the distance between the cable and the monitoring plate remains equal, thereby improving the accuracy of the cable monitoring of the device; the rainwater on the upper part of the cable is scraped and blocked through the anti-skid belt to prevent the rainwater from affecting the cable monitoring value, and at the same time provides friction for the device to prevent the device from slipping when moving; the water-absorbing belt continuously rotates and continuously absorbs the rainwater on the cable to prevent the rainwater from affecting the monitoring result, and the water-absorbing belt can repeatedly and continuously absorb rainwater, thereby improving the practicality of the device; the movement state of the device on the cable is monitored through the cooperation of the button and the counterweight ball, and the state of the anti-skid belt and the water-absorbing belt is adjusted in a targeted manner, thereby ensuring that the device will not leak rainwater and affect the monitoring result. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2It is a three-dimensional structural schematic diagram of the internal structure of the casing of the present invention; Figure 3 A three-dimensional structural cross-sectional view showing the positional relationship between the electric push rod and the first fixing frame of the present invention; Figure 4 An exploded view of the matching relationship between the housing and the rotating housing of the present invention; Figure 5 A three-dimensional cross-sectional view of the internal structure of the monitoring shell of the present invention; Figure 6 It is a three-dimensional structural cross-sectional view of the positioning mechanism of the present invention; Figure 7 It is a three-dimensional structural cross-sectional view of the water blocking mechanism of the present invention; Figure 8 An exploded view of the water absorbent belt and the extrusion block of the present invention; Fig. 9 It is a three-dimensional structural cross-sectional view of the matching relationship between the fixed frame and the rotating belt of the present invention; Fig.10 It is a three-dimensional structural cross-sectional view of the measuring mechanism of the present invention; Fig.11 It is a three-dimensional structural schematic diagram of the matching relationship between the sliding block and the button of the present invention.

[0016] The above drawings include the following reference numerals: 1, housing, 101, electric push rod, 102, first sliding frame, 103, fastening wheel, 2, first fixed frame, 3, first electric rotating shaft, 4, rotating wheel, 5, rotating shell, 6, water absorption shell, 7, monitoring shell, 8, fixed plate, 9, monitoring arc plate, 10, first rotating rod, 11, correction wheel, 12, correction mechanism, 1201, power slide rail, 1202, second sliding frame, 13, positioning mechanism, 1301, first sliding rod, 1302, positioning wheel, 1303, second rotating Moving rod, 1304, first winding wheel, 1305, second winding wheel, 14, water blocking mechanism, 1401, second electric shaft, 1402, third rotating rod, 1403, fixed frame, 1404, rotating belt, 1405, water absorption belt, 1406, anti-skid belt, 1407, water squeezing shell, 1408, squeezing block, 15, measuring mechanism, 1501, fixed rod, 1502, second sliding rod, 1503, second fixed frame, 1504, sliding block, 1505, button, 1506, telescopic rod, 1507, counterweight ball. DETAILED DESCRIPTION

[0017] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, lateral, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position.

[0018] Experiments have found that when monitoring the magnetic variables of cables, the bending state of the cables will affect the monitoring results. Some cables are in a freely hanging bending state under normal conditions. When these cables are inspected and monitored on a daily basis (magnetic variable monitoring), the bending cables may cause the shape of the magnetic field around them to change, which will cause the signal pattern detected by the electromagnetic sensor to change, making the analysis results inaccurate. Similarly, a bent cable may produce stress concentration at the bend, leading to partial discharge. These partial discharge signals will interfere with electromagnetic detection and make fault diagnosis more complicated, and may even lead to misjudgment of cable faults, affecting subsequent work.

[0019] Embodiment 1: A self-propelled high-voltage cable online monitoring device, such as Figure 1-Figure 5As shown, it includes a housing 1, and the lower side of the housing 1 is provided with through holes distributed in a mirror image for draining rainwater. The front and rear sides of the housing 1 are fixedly connected with first fixed frames 2 distributed equidistantly, and a first electric shaft 3 is arranged between the first fixed frames 2 distributed equidistantly. A rotating wheel 4 is fixedly connected to the first electric shaft 3, and the rotating wheel 4 is located in the middle of the first electric shaft 3. A groove is arranged in the middle of the rotating wheel 4 for positioning the relative position of the device and the cable. The front and rear sides of the housing 1 are provided with electric slide rails. The electric slide rails on the housing 1 are arc-shaped electric slide rails. The slider inside is fixedly connected with a rotating shell 5, and the facing sides of the two rotating shells 5 are provided with electric slide rails, and the electric slide rails on the rotating shell 5 are also arc-shaped electric slide rails. A water absorption shell 6 for intercepting rainwater is fixedly connected to the slider of the electric slide rail on the rotating shell 5, and the facing sides of the two water absorption shells 6 are provided with electric slide rails, and the electric slide rails on the water absorption shell 6 are also arc-shaped electric slide rails. A monitoring shell 7 is fixedly connected between the sliders in the electric slide rails on the two water absorption shells 6. The housing 1, the two rotating shells 5, the two water absorption shells 6 and the monitoring shell 7 are all provided with U-shaped notches. In the initial state, the housing 1 and the two rotating shells 5 are The U-shaped notches on the moving shell 5, the two water-absorbing shells 6 and the monitoring shell 7 are all facing the right side. Two fixed plates 8 with mirror images are fixed to the inner side of the monitoring shell 7. Two monitoring arc plates 9 with mirror images are rotatably connected between the two fixed plates 8. The monitoring arc plates 9 are provided with monitoring plates for monitoring the electromagnetic variables of the cable. The monitoring shell 7 is slidably connected with a slider with mirror images. The slider on the monitoring shell 7 is slidably connected with a first rotating rod 10. A tension spring is provided between the first rotating rod 10 and the adjacent slider. In the initial state, the tension spring between the first rotating rod 10 and the adjacent slider is in a stretched state. In the state, the two first rotating rods 10 are distributed in a mirror image, an arc-shaped slider is arranged on the upper side of the first rotating rod 10, and a mirror-shaped arc-shaped slide groove is arranged in the casing 1, the arc-shaped slider on the first rotating rod 10 slides in the adjacent arc-shaped slide groove on the casing 1, and a correction wheel 11 located in the monitoring shell 7 is fixedly connected to the lower side of the first rotating rod 10, and a groove is arranged on the correction wheel 11 for positioning the cable, a correction mechanism 12 for straightening the cable and a positioning mechanism 13 for ensuring the cable monitoring position are arranged on the monitoring shell 7, and a water-blocking mechanism 14 for removing water is arranged on the water absorption shell 6.

[0020] like Figure 1-Figure 3As shown, the lower sides of the first fixed frame 2 on the left front side and the first fixed frame 2 on the left rear side are fixedly connected with an electric push rod 101, and the front and rear sides of the casing 1 are slidably connected with equidistantly distributed first sliding frames 102, the telescopic ends of the electric push rod 101 are fixedly connected to the adjacent first sliding frames 102, and a fastening wheel 103 is rotatably connected between the two adjacent first sliding frames 102. The fastening wheel 103 is provided with a groove for positioning the cable and the device, and self-locking components are respectively provided between the two fixed frames 2 on the right side and the adjacent first sliding frames 102. The self-locking components are existing technologies and are used to ensure the state between the fastening wheel 103 and the adjacent rotating wheel 4.

[0021] like Figure 2 , Figure 5 and Figure 6 As shown, the correction mechanism 12 includes two power slide rails 1201 with front and rear mirror-image distribution, the two power slide rails 1201 are fixed to the inner wall of the monitoring shell 7, the sliders in the two power slide rails 1201 are commonly fixed to the second sliding frame 1202, the upper side of the second sliding frame 1202 is provided with two mirror-image-distributed limiting holes, the lower side of the first rotating rod 10 is provided with a limiting rod, and the limiting rod on the lower side of the first rotating rod 10 is limitedly matched with the adjacent limiting hole on the second sliding frame 1202.

[0022] like Figure 5 and Figure 6 As shown, the positioning mechanism 13 includes a first sliding rod 1301, the first sliding rod 1301 is slidably connected to the monitoring shell 7, and a spring is arranged between the two, a rack is arranged on the left side of the first sliding rod 1301, and the rack on the first sliding rod 1301 is located between the housing 1 and the monitoring shell 7, the right side of the first sliding rod 1301 is rotatably connected to a positioning wheel 1302, the positioning wheel 1302 is located in the monitoring shell 7, and the positioning wheel 1302 is located between the two monitoring arc plates 9, and the left side of the outside of the monitoring shell 7 is rotatably connected to a second rotating rod 1303 through a mounting plate, and the second rotating rod A gear meshing with the rack on the first sliding rod 1301 is provided in the middle part of 1303, and two first winding wheels 1304 distributed in upper and lower mirror images are fixedly connected to the second rotating rod 1303. The two first winding wheels 1304 are respectively located on the upper and lower sides of the gear on the second rotating rod 1303, and the front sides of the two monitoring arc plates 9 are fixedly connected to the second winding wheels 1305. A traction rope is wound around the first winding wheel 1304 and the adjacent second winding wheel 1305, and the center of the positioning wheel 1302 is in the mirror plane of the mirror-distributed correction wheel 11, so as to ensure the monitoring status of the cable.

[0023] like Figure 5 and Figure 7-Figure 9As shown, the water blocking mechanism 14 includes four second electric rotating shafts 1401 that are equidistant and mirror-distributed up and down, and the four second electric rotating shafts 1401 are respectively arranged on the inner sides of adjacent water absorption shells 6 and adjacent rotating shells 5, and the inner sides of the rotating shells 5 and the water absorption shells 6 are both rotatably connected with third rotating rods 1402 that are mirror-distributed up and down, and transmission wheels are arranged on the mirror-distributed second electric rotating shafts 1401 and the mirror-distributed third rotating rods 1402, respectively. The inner sides of the rotating shells 5 and the water absorption shells 6 are both fixed with fixed frames 1403, and the fixed frames 1403 are U-shaped frames, and the fixed frames 1403 are in the same straight line with the centers of the U-shaped notches of the adjacent rotating shells 5 and the adjacent water absorption shells 6, and the transmission wheels on the mirror-distributed second electric rotating shafts 1401 and the adjacent and mirror-distributed third rotating rods 1402 are respectively arranged on the inner sides of the rotating shells 5 and the ... A rotating belt 1404 is commonly wound around the transmission wheels on the third rotating rod 1402 of the cloth, and two adjacent rotating belts 1404 are distributed in a mirror image. The fixed frame 1403 is slidably connected to the adjacent rotating belts 1404 to ensure that the rotating belts 1404 fit the U-shaped notch while providing support force. The rotating belt 1404 inside the water-absorbing shell 6 is fixedly connected to a water-absorbing belt 1405, and the water-absorbing belt 1405 is made of elastic water-absorbing material and is used to absorb rainwater attached to the cable. The water-absorbing belt 1405 is slidably matched with the U-shaped notch of the adjacent water-absorbing shell 6. The rotating belt 1404 inside the rotating shell 5 is fixedly connected to an anti-skid belt 1406, and the water-absorbing belt 1405 is made of elastic anti-skid material and is used to intercept rainwater. The anti-skid belt 1406 is slidably matched with the U-shaped notch of the adjacent rotating shell 5.

[0024] like Figure 7-Figure 9 As shown, a through hole is provided on the left side of the water-absorbing shell 6 for discharging rainwater, a water squeezing shell 1407 is fixedly connected to one side of the water-absorbing shell 6 near its through hole, the water squeezing shell 1407 is slidably connected to the adjacent rotating belt 1404 and the adjacent water-absorbing belt 1405, an extrusion block 1408 is fixedly connected to the water squeezing shell 1407, the extrusion block 1408 is extruded and matched with the adjacent water-absorbing belt 1405, and is used to squeeze out the water in the water-absorbing belt 1405, the cross-section of the extrusion block 1408 is a right-angled trapezoid, the right side surface of which is an inclined surface, and the inclined surface gradually inclines to the right from top to bottom, and the inclined surface is a twisted surface, that is, the bottom side and the top side of the inclined surface are not in the same plane, and the upper side of the inclined surface of the front extrusion block 1408 is twisted counterclockwise, and is used to gradually squeeze out the water in the adjacent water-absorbing belt 1405.

[0025] When using the device to monitor the high-voltage cable, the user first drives the U-shaped notch of the casing 1 to move to the right side of the cable, and then the user controls the device to move to the right, and the cable moves to the left relative to the device to the end of the U-shaped notch of the casing 1. In this process, the cable also moves to the left relative to the device to between the U-shaped notches of the two rotating shells 5, the two water-absorbing shells 6 and the monitoring shell 7. At this time, the front and rear two rotating wheels 4 are mounted on the upper side of the cable. Taking the front electric push rod 101 as an example, the user controls the telescopic end of the electric push rod 101 to retract, and the telescopic end of the electric push rod 101 drives the left front first sliding frame 102 to move upward, and the left front first sliding frame 102 drives the fastening wheel 103 and the right front first sliding frame 102 to move upward. As the fastening wheel 103 continues to move upward, the fastening wheel 103 contacts the cable and cooperates with the rotating wheel 4 to clamp the cable. In this process, the self-locking component between the right front first fixed frame 2 and the right front first sliding frame 102 self-locks the positions of the two. At this time, the clamping and fixing of the device is completed.

[0026] In order to ensure that the device monitors the circumferential magnetic field of the cable uniformly, it is necessary to ensure the distance between the monitoring device and the circumference of the cable, and the following operations need to be performed: when the above-mentioned cable moves to the left relative to the device, the monitoring shell 7 drives the two monitoring arc plates 9 to move to the right through the two fixed plates 8, and the monitoring shell 7 drives the first sliding rod 1301 to move to the right through the spring between it and the first sliding rod 1301, and the first sliding rod 1301 drives the positioning wheel 1302 to move to the right. When the positioning wheel 1302 contacts the cable, the cable axis is already located between the two monitoring arc plates 9. As the positioning wheel 1302 continues to move to the right, the cable squeezes the positioning wheel 1302 and causes the positioning wheel 1302 to drive the first sliding rod 1301 to move to the left relative to the monitoring shell 7, while squeezing the spring between the first sliding rod 1301 and the monitoring shell 7. When the first sliding rod 1301 moves to the left relative to the monitoring shell 7, the first sliding rod 1301 drives its upper rack to move relatively. Left synchronous movement, the rack on the first sliding rod 1301 meshes with the gear on the second rotating rod 1303 and drives the second rotating rod 1303 to rotate, and the second rotating rod 1303 drives the two first winding wheels 1304 thereon to rotate, and the two first winding wheels 1304 respectively drive the adjacent second winding wheels 1305 to rotate through adjacent traction ropes, and the two second winding wheels 1305 rotate in opposite directions, so that the two monitoring arc plates 9 swing towards each other until the cable moves to the left relative to the device to the end of the U-shaped notch of the casing 1. At this time, the right ends of the two monitoring arc plates 9 are in contact, and the two monitoring arc plates 9 form a circular ring and restrict the cable. At this time, the axis line of the cable coincides with the axis line of the circular ring formed by the two monitoring arc plates 9, and the cable centering step is completed. The cable monitoring part is positioned by cooperating with the positioning wheel 1302 and the mirror-distributed monitoring arc plates 9, thereby ensuring that the distance between the cable and the monitoring plate remains equal, thereby improving the accuracy of cable monitoring by the device.

[0027] In order to ensure that the monitoring cable segments of the two monitoring arc plates 9 are always in a straight state, thereby enhancing the monitoring effect of the device on the cable, the following operations are required: after the cable centering step is completed, the user controls the sliders in the arc-shaped electric slide rails on the two water-absorbing shells 6 to drive the monitoring shell 7 to rotate 90° clockwise. During this process, the two sliders on the monitoring shell 7 respectively drive the first rotating rod 10 thereon to rotate, and the first rotating rod 10 slides in the slide groove in the housing 1 until the first rotating rod 10 slides out of the slide groove in the housing 1 (that is, the first rotating rod The upper end of the first rotating rod 10 slides to the U-shaped notch of the housing 1), the tension spring between the first rotating rod 10 and the adjacent slider on the monitoring housing 7 drives the first rotating rod 10 to move toward the second sliding frame 1202, and the first rotating rod 10 drives the adjacent correction wheel 11 to move toward the second sliding frame 1202 until the lower end of the first rotating rod 10 is embedded in the adjacent limiting hole on the second sliding frame 1202. At this time, the cross-section of the middle part of the two correction wheels 11 and the cross-section of the middle part of the positioning wheel 1302 are in the same plane, and when the monitoring housing 7 rotates 90° clockwise, the positioning wheel 1 302 is located on the upper side of the cable at this time, and the two correction wheels 11 are located on the lower side of the cable. Then the user controls the sliders in the two power slide rails 1201 to move upward, and the two sliders in the two power slide rails 1201 jointly drive the second sliding frame 1202 to move upward, and the second sliding frame 1202 drives the two first rotating rods 10 to move upward synchronously, and the two first rotating rods 10 drive the two correction wheels 11 and the two sliders on the monitoring shell 7 to move upward synchronously. As the two correction wheels 11 gradually move upward, the two correction wheels 11 contact and drive the cable to bend upward, thereby offsetting the bending caused by the free fall of the cable, until the two correction wheels 11 cooperate with the positioning wheel 1302 to straighten the monitoring section cable (that is, the cable between the two correction wheels 11). At this time, the cable straightening step is completed, and the device is installed on the cable. The bending caused by free falling is straightened by the cooperation of the mirror-distributed correction wheels 11, so as to prevent the bent cable from affecting the monitoring result, thereby improving the monitoring accuracy of the device, thereby reducing the workload of subsequent fault diagnosis and preventing misjudgment of faults.

[0028] After the above-mentioned monitoring shell 7 is rotated 90° clockwise, the U-shaped notch of the monitoring shell 7 and the U-shaped notch of the casing 1 cooperate to wrap the cable, thereby ensuring that the cable does not deviate significantly from the device when the device is moved. After the device is installed, the user starts the two first electric shafts 3, and the first electric shafts 3 drive the adjacent rotating wheels 4 to rotate. The rotating wheels 4 cooperate with the adjacent fastening wheels 103 to drive the device to move along the cable. During this process, the cable continues to move into the device, and the cable entering the device is straightened by the two straightening wheels 11 and the positioning wheel 1302. At the same time, the user controls the magnetic variable monitoring plates on the two monitoring arc plates 9 to monitor the condition of the cable, thereby ensuring the state of the cable when the device is monitoring and reducing the influence of external variables. The user repeats the above steps to gradually monitor the cable until the entire cable is monitored. At this time, the use of the device is completed.

[0029] When using magnetic variables to monitor the status of cables, if there is rainy weather in the south (i.e. continuous rain for many consecutive days), regular inspections are required to ensure the normal operation of the cables. At this time, the rainwater flowing on the cables contains positive and negative ions. These ions can generate weak currents when moving in the electromagnetic field, thereby generating new magnetic fields. This changing magnetic field may be superimposed on the original electromagnetic field of the cable, causing distortion of the detection signal or generating additional noise. Especially when using electromagnetic induction technology for cable fault location, cable path detection, or cable status assessment, electromagnetic interference in the water body may affect the detection equipment's recognition and analysis of the cable's true electromagnetic signals, reduce detection accuracy, and cause misjudgment. To solve the above problems, the following operations are required: When using the device in rainy weather, the user controls the sliders in the two electric slide rails on the casing 1 to drive the two rotating shells 5 and the two water absorbing shells 6 to rotate 90° clockwise, and then the user controls the sliders in the electric slide rails on the two rotating shells 5 to drive the two water absorbing shells 6 to rotate 180° clockwise. At this time, the use status of the device is switched.

[0030] After the use state of the device is switched, the user controls all the second electric rotating shafts 1401 to rotate at the same time. Taking the four second electric rotating shafts 1401 in the front rotating shell 5 and the front water absorption shell 6 as an example, when the device moves and monitors the cable, the two second electric rotating shafts 1401 in the rotating shell 5 drive the rotating belt 1404 to rotate through the transmission wheels thereon, and the rotating belt 1404 drives the adjacent anti-skid belt 1406 to rotate, and the anti-skid belt 1406 drives the third rotating rod 1402 in the rotating shell 5 to rotate through the transmission wheel on the third rotating rod 1402. In this process, the upper half of the cable entering the device is intercepted by the continuously rotating anti-skid belt 1406 and flows downward, and the anti-skid belt 1406 also provides a certain friction resistance for the device, thereby preventing the device from slipping due to reduced friction, and the rainwater on the upper side of the cable is scraped and blocked by the anti-skid belt 1406 to prevent the rainwater from affecting the cable monitoring value, and at the same time provide friction for the device to prevent the device from slipping when moving.

[0031] When it rains, due to the influence of gravity, the amount of rainwater on the lower side of the cable is much greater than that on the upper side of the cable. To ensure that the flowing rainwater does not affect the monitoring when the cable is monitored in this device, the following operations are required: When the device moves and monitors the cable, the two second electric rotating shafts 1401 in the water-absorbing shell 6 drive the rotating belt 1404 to rotate through the transmission wheels thereon. Taking the front water-absorbing belt 1405 as an example, the rotating belt 1404 drives the water-absorbing belt 1405 to rotate, and the water-absorbing belt 1405 continuously absorbs rainwater entering the lower side of the cable in the device during rotation, thereby preventing rainwater from flowing onto the cable in the monitoring shell 7, and the water-absorbing belt 1405 after absorbing water is moved to the water-squeezing shell 1407 driven by the rotating belt 1404. When the water-absorbing belt 1405 just enters the water-squeezing shell 1407, because the inclined surface of the squeezing block 1408 is a torsional surface, the squeezing of the front half of the water-absorbing belt 1405 by the squeezing block 1408 is much greater than the squeezing of the rear half of the water-absorbing belt 1405, so the rainwater in the water-absorbing belt 1405 gradually gathers to the rear half of the water-absorbing belt 1405 As the water-absorbing belt 1405 continues to move downward, the squeezing degree of the rear half of the water-absorbing belt 1405 by the squeezing block 1408 gradually catches up with the squeezing degree of the front half. During this process, the rainwater in the water-absorbing belt 1405 is gradually squeezed from front to back, thereby fully squeezing the rainwater in the water-absorbing belt 1405 to prevent the water-absorbing belt 1405 from incompletely squeezing the rainwater. After the rainwater in the water-absorbing belt 1405 is squeezed out, it flows downward from the squeezing shell 1407 through the through holes on the adjacent water-absorbing shell 6 to the casing 1, and then flows to the outside through the adjacent through holes on the casing 1. The water-absorbing belt 1405 that has been squeezed continues to absorb the rainwater attached to the cable. The water-absorbing belt 1405 continuously rotates and continuously absorbs the rainwater on the cable, thereby preventing the rainwater from affecting the monitoring results. In addition, the water-absorbing belt 1405 can repeatedly and continuously absorb rainwater, thereby improving the practicality of the device.

[0032] Embodiment 2: Based on embodiment 1, Figure 1 , Figure 2 , Fig.10 and Fig.11 As shown, the device also includes a measuring mechanism 15 for measuring the motion state of the device. The measuring mechanism 15 is arranged on the two first fixing frames 2 with mirror image distribution on the left side. The measuring mechanism 15 includes two fixing rods 1501 with mirror image distribution in the front and back directions. The fixing rods 1501 are rotatably connected to the adjacent first fixing frames 2. The fixing rods 1501 are fixedly connected to the left side of the adjacent first electric rotating shaft 3. The housing 1 is slidably connected to two second sliding rods 1502 with mirror image distribution in the front and back directions. The two second sliding rods 1502 are both provided with arc hooks on the opposite sides. A hook is provided between the second sliding rods 1502 and the housing 1. A spring is arranged, and the second sliding rod 1502 is frictionally matched with the adjacent fixed rod 1501 to monitor the movement direction of the device. Two second fixed frames 1503 distributed in front and back mirror images are fixedly connected in the housing 1. The two second fixed frames 1503 are L-shaped plates. The second fixed frames 1503 are slidably connected with a sliding block 1504. The front and rear sides of the upper part of the sliding block 1504 are both provided with arc surfaces. A button 1505 is provided on the lower side of the second sliding rod 1502. In the initial state, the two buttons 1505 are both in an un-powered and untriggered state. When the device moves forward, the front The first electric rotating shaft 3 drives the front fixed rod 1501 to rotate, and the front fixed rod 1501 drives the front second sliding rod 1502 to move forward in a friction manner, and the front second sliding rod 1502 drives the button 1505 thereon to move forward until the second sliding rod 1502 stops moving forward. At this time, the front button 1505 is energized, while the rear button 1505 is not energized, that is, the front button 1505 is energized when the device moves forward, and the rear button 1505 is energized when the device moves backward. The button 1505 is electrically connected to the second electric rotating shaft 1401 that is equidistant and mirror-distributed. The button 1505 is squeezed and fitted with the adjacent sliding block 1504, the distance between the upper side of the sliding block 1504 and the lower side of the adjacent second sliding rod 1502 is smaller than the distance when the button 1505 is extended, and the inner side of the casing 1 is rotatably connected to two telescopic rods 1506 distributed in front and back mirror images through the mounting rod, the telescopic end of the telescopic rod 1506 is hinged to the adjacent sliding block 1504, and the fixed part of the telescopic rod 1506 is fixed with a counterweight ball 1507, and the weight of the counterweight ball 1507 is greater than the sum of the weights of the telescopic rod 1506 and the sliding block 1504, which is used for positioning.

[0033] The cable is in a downward curved arc under normal installation state. When the user controls the device to clean and monitor the rainwater attached to the cable, when the device moves to the lowest point of the cable, the moving direction of the device is the same as the moving direction of the rainwater. When the device moves from the lowest point of the cable to both ends, the moving direction of the device is opposite to that of the rainwater. In the two cases, the amount of rainwater that the device needs to handle is quite different. If the cable rainwater is not completely cleaned, it will affect the monitoring results. To solve the above problem, the following operations are required: When the device moves from the rear end of the cable to the middle (i.e., the moving direction of the device is the same as the moving direction of the rain), the first electric shaft 3 drives the adjacent fixed rod 1501 to rotate, and the front fixed rod 1501 drives the front second sliding rod 1502 to move forward by friction, and at the same time squeezes the spring between the front second sliding rod 1502 and the housing 1, and the front second sliding rod 1502 drives the front button 1505 to move forward until the front button 1505 stops moving forward. At this time, the button 1505 is converted to the power-on state, and the rear .... 01When rotating, the rear second sliding rod 1502 will not move forward, and the rear button 1505 is not powered, so the rear button 1505 is always in an untriggered state. Since the device is in an inclined state, the two weighted balls 1507 drive the adjacent sliding blocks 1504 to slide backward through the adjacent telescopic rods 1506. At this time, since the front button 1505 moves forward, the front sliding block 1504 will not be squeezed with the front button 1505, and the rear sliding block 1504 moves backward synchronously, and the sliding block 1504 contacts and squeezes the rear button 1505. 505, and at this time the device is moving forward, it can be determined that the device is moving toward the lower side of the cable at this time. When the device moves from the lowermost side of the cable to the front end, the device changes its tilt direction, and the two weighted balls 1507 drive the adjacent sliding blocks 1504 to slide forward through the adjacent telescopic rods 1506. During this process, the front sliding block 1504 gradually contacts and squeezes the front button 1505, and the rear sliding block 1504 gradually loses the squeezing of the rear button 1505. At this time, the device is still moving forward, and the front button 1505 is squeezed. Because the front button 1505 is powered on, the front button 1505 controls all the second electric shafts 1401 to rotate faster after being squeezed. At this time, the rotation speeds of the two anti-skid belts 1406 and the two water-absorbing belts 1405 increase, thereby enhancing the efficiency of separating and absorbing rainwater. The button 1505 cooperates with the counterweight ball 1507 to monitor the movement state of the device on the cable, and adjust the states of the anti-skid belts 1406 and the water-absorbing belts 1405 in a targeted manner, thereby ensuring that the device will not leak rainwater and affect the monitoring results.

[0034] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art having benefit of this disclosure will appreciate that various other embodiments can be devised without departing from the scope of the present invention. Accordingly, the scope of the present invention should be limited only by the appended claims.

Claims

1. A self-propelled high-voltage cable online monitoring device, characterized in that: The invention comprises a housing (1), wherein the outer side of the housing (1) is fixedly connected to first fixing frames (2) which are equidistant and mirror-distributed, a first electric rotating shaft (3) is arranged between the first fixing frames (2) which are equidistant, a rotating wheel (4) is fixedly connected to the first electric rotating shaft (3), an electric sliding rail which is mirror-distributed is arranged inside the housing (1), a sliding block in the electric sliding rail on the housing (1) is fixedly connected to a rotating shell (5), electric sliding rails are arranged on opposite sides of the rotating shell (5) which are mirror-distributed, a water absorption shell (6) is fixedly connected to the sliding block of the electric sliding rail on the rotating shell (5), electric sliding rails are arranged on opposite sides of the water absorption shell (6) which are mirror-distributed, a monitoring shell (7) is fixedly connected between the sliding blocks in the electric sliding rail on the water absorption shell (6) which are mirror-distributed, and the monitoring shell (7) is fixedly connected to the sliding blocks in the electric sliding rail on the water absorption shell (6) which are mirror-distributed. A mirror-distributed fixed plate (8) is fixedly connected to the inner side of the monitoring shell (7); a mirror-distributed monitoring arc plate (9) is rotatably connected between the mirror-distributed fixed plates (8); a mirror-distributed sliding block is slidably connected to the monitoring shell (7); the sliding block on the monitoring shell (7) is slidably connected to a first rotating rod (10) slidably connected to the housing (1); a tension spring is provided between the first rotating rod (10) and an adjacent sliding block; a correction wheel (11) located in the monitoring shell (7) is fixedly connected to the first rotating rod (10); a correction mechanism (12) for straightening the cable and a positioning mechanism (13) for ensuring the monitoring position of the cable are provided on the monitoring shell (7); and a water blocking mechanism (14) for removing water is provided on the water absorbing shell (6).

2. A self-propelled high-voltage cable online monitoring device according to claim 1, characterized in that: The first fixed frames (2) distributed in a mirror image on one side are all fixedly connected with electric push rods (101), the housing (1) is slidably connected with first sliding frames (102) that are equidistant and distributed in a mirror image, the telescopic ends of the electric push rods (101) are fixedly connected to adjacent first sliding frames (102), and fastening wheels (103) are rotatably connected between the first sliding frames (102) distributed in a mirror image.

3. The self-propelled high-voltage cable online monitoring device according to claim 1 is characterized in that: The correction mechanism (12) comprises mirror-distributed power slide rails (1201), the mirror-distributed power slide rails (1201) are all fixedly connected to the monitoring shell (7), the sliders in the mirror-distributed power slide rails (1201) are commonly fixedly connected to a second sliding frame (1202), and the mirror-distributed first rotating rods (10) are all limitedly matched with the second sliding frame (1202).

4. A self-propelled high-voltage cable online monitoring device according to claim 3, characterized in that: The positioning mechanism (13) comprises a first sliding rod (1301), the first sliding rod (1301) being slidably connected to the monitoring shell (7), a spring being arranged between the first sliding rod (1301) and the monitoring shell (7), a rack being arranged on a side of the first sliding rod (1301) away from the first rotating rod (10) of the mirror distribution, and a positioning wheel (1302) being rotatably connected to a side of the first sliding rod (1301) close to the first rotating rod (10) of the mirror distribution, and the monitoring shell (7) being arranged by The mounting plate is rotatably connected to a second rotating rod (1303), a gear is provided on the second rotating rod (1303), the gear on the second rotating rod (1303) is meshed with a rack on the first sliding rod (1301), a first winding wheel (1304) in a mirror-image distribution is fixedly connected to the second rotating rod (1303), a second winding wheel (1305) is fixedly connected to one side of the mirror-image distribution monitoring arc plate (9), and a traction rope is commonly wound between the first winding wheel (1304) and the adjacent second winding wheel (1305).

5. A self-propelled high-voltage cable online monitoring device according to claim 4, characterized in that: The center of the positioning wheel (1302) is located in the mirror plane of the mirror-distributed correction wheel (11), so as to ensure the monitoring status of the cable.

6. The self-propelled high-voltage cable online monitoring device according to claim 1 is characterized in that: The water blocking mechanism (14) comprises second electric rotating shafts (1401) which are equidistant and mirror-distributed, the second electric rotating shafts (1401) which are equidistant and mirror-distributed are respectively arranged in adjacent water absorption shells (6) and adjacent rotating shells (5), the rotating shells (5) and the water absorption shells (6) are both rotatably connected with third rotating rods (1402) which are mirror-distributed, the second electric rotating shafts (1401) which are mirror-distributed and the third rotating rods (1402) which are mirror-distributed are both provided with transmission wheels, the rotating shells (5) and A fixed frame (1403) is fixedly connected inside the water absorption shell (6); a transmission wheel on the second electric rotating shaft (1401) which is arranged in a mirror image and a transmission wheel on the adjacent and mirror image third rotating rod (1402) are jointly wound with a rotating belt (1404); the fixed frame (1403) is slidably connected to the adjacent rotating belt (1404); a water absorption belt (1405) is fixedly connected to the rotating belt (1404) close to the water absorption shell (6); and the water absorption belt (1405) is slidably matched with the adjacent water absorption shell (6).

7. A self-propelled high-voltage cable online monitoring device according to claim 6, characterized in that: The rotating belt (1404) close to the rotating shell (5) is fixedly connected with an anti-slip belt (1406), and the anti-slip belt (1406) is slidably matched with the adjacent rotating shell (5).

8. The self-propelled high-voltage cable online monitoring device according to claim 6 is characterized in that: A through hole is provided on one side of the water absorbing shell (6), a water squeezing shell (1407) is fixedly connected inside the water absorbing shell (6), the water squeezing shell (1407) is slidably connected to the adjacent rotating belt (1404) and the adjacent water absorbing belt (1405), an extrusion block (1408) is fixedly connected inside the water squeezing shell (1407), and the extrusion block (1408) is extrusion-matched with the adjacent water absorbing belt (1405).

9. A self-propelled high-voltage cable online monitoring device according to claim 8, characterized in that: The cross section of the extrusion block (1408) is a right-angled trapezoid, and its inclined surface is close to the adjacent water-absorbing belt (1405), and its inclined surface is a twisted surface for gradually squeezing out water.

10. A self-propelled high-voltage cable online monitoring device according to claim 6, characterized in that: The device also includes a measuring mechanism (15) for measuring the motion state of the device, the measuring mechanism (15) being arranged on one side of the first fixed frame (2) in a mirror-image arrangement, the measuring mechanism (15) comprising a fixed rod (1501) in a mirror-image arrangement, the fixed rod (1501) being rotatably connected to an adjacent first fixed frame (2), the fixed rod (1501) being fixedly connected to an adjacent first electric rotating shaft (3), the housing (1) being slidably connected to a second sliding rod (1502) in a mirror-image arrangement, a spring being arranged between the second sliding rod (1502) and the housing (1), the second sliding rod (1502) being frictionally matched with the adjacent fixed rod (1501), the housing ( 1) is fixedly connected to a second fixed frame (1503) with mirror-image distribution, the second fixed frame (1503) is slidably connected to a sliding block (1504), a button (1505) is arranged on the second sliding rod (1502), the button (1505) is electrically connected to the second electric rotating shaft (1401) which is equidistant and mirror-image distributed, the button (1505) is pressed and matched with the adjacent sliding block (1504), the housing (1) is rotatably connected to a telescopic rod (1506) with mirror-image distribution through a mounting rod, the telescopic end of the telescopic rod (1506) is hinged to the adjacent sliding block (1504), and a counterweight ball (1507) is fixed to the fixed part of the telescopic rod (1506).

Images