Self-propelled cable damage automatic detection equipment

Abstract

The invention belongs to the technical field of cable damage detection, and discloses self-propelled cable damage automatic detection equipment, which comprises a lower protection shell sleeving the outside of a cable and an upper protection shell rotatably mounted at the upper end of the lower protection shell, and is characterized in that the outside of the lower protection shell is rotatably connected with an electric drive telescopic rod; the output end of the electric drive telescopic rod is fixedly connected with the rotating ring. The lower protective shell and the upper protective shell are respectively provided with a through groove for a cable to enter a detection range, and the central position of the inner side of the lower protective shell and the central position of the inner side of the upper protective shell are fixedly provided with an infrared thermal imager for detecting the cable damage condition. A self-walking mechanism which automatically walks in the cable erecting direction to assist detection is arranged outside the lower protective shell and the upper protective shell. Through the self-walking mechanism, the thermal infrared imager can move along the cable erection direction for detection, and the detection efficiency is improved while close-range accurate detection is maintained.

Description

Technical Field

[0001] The invention relates to the technical field of cable damage detection, in particular to a self-propelled automatic cable damage detection device. Background Art

[0002] Cables installed outdoors are long and in large numbers. Generally, users do not proactively inspect and repair the cables unless there are any problems with their use. This can lead to cable maintenance problems. Currently, the cable surface can be inspected through infrared thermal imaging technology, partial discharge detection, pulse reflection method, X-ray detection, etc. Infrared thermal imaging technology diagnoses the degree of cable damage by measuring the temperature distribution on the cable surface.

[0003] For example, the patent with publication number CN221550442U discloses a cable sheath damage detection device, which includes a frame; a placement groove is arranged on the frame; a take-up wheel is movably arranged on the frame; a pay-off wheel is movably arranged on the frame; a detection ring is fixedly connected to the frame and is located between the pay-off wheel and the take-up wheel; a slider is slidably connected to the detection ring; a mounting column is fixedly connected to the slider; a pressure sensor is movably mounted on one end of the mounting column away from the slider; a driving assembly is arranged in the slider for driving the slider to move in a circle; a cylinder is fixedly connected in the slider; a connecting rod is fixedly connected to a piston rod in the cylinder; an arc plate is hinged to one end of the connecting rod; a marking pen is fixedly connected to the arc plate; and a take-up assembly is arranged on the frame for driving the take-up wheel to rotate.

[0004] For example, the patent with publication number CN113533367B discloses a surface detection and damage repair device for power supply overhead cables, including a box body, a detection mechanism and a repair mechanism. The interior of the box body is hollow, and an entry hole and an exit hole are respectively provided at opposite ends in the length direction of the box body. The cable is inserted into the interior of the box body from the entry hole and passes through the box body from the exit hole. The detection mechanism is arranged inside the box body and close to the entry hole, and is used for visually detecting the circumferential surface damage of the inserted cable. The detection mechanism is connected to a visual detection system arranged on the outer wall of the box body. The detection mechanism sends an alarm signal after detecting the damaged part of the cable. The repair mechanism is arranged inside the box body and close to the exit hole, and is used for receiving the cable output from the detection mechanism and repairing the damaged part on the cable. The repaired cable passes through the exit hole, which has the technical effects of low labor intensity for cable damage detection and repair, automatic detection and repair, and saving time and effort.

[0005] For example, the patent with publication number CN111929537B discloses a self-propelled high-altitude cable damage detection device, including a detection mechanism and two motion mechanisms arranged at both ends of the detection mechanism, the detection mechanism includes a detection casing, the center of the detection casing is through, and a detection component and a control module electrically connected to the detection component are arranged inside, the detection component is a detection ring, and a certain number of distance measuring sensors are installed on the inner contour of the detection ring. The measuring direction of the distance measuring sensor is the radial direction of the detection ring, and the probe of the distance measuring sensor is located in the through cavity in the center of the detection casing. The detection mechanism is driven to move by the motion mechanism, and automatic detection is realized without manual work. The device is suitable for cables with long distances and high erection. At the same time, the two motion mechanisms are provided with supports at both ends front and back to make the device run more smoothly. The annular detection component can detect the cable in all directions at the same time, and the detection effect is better. At present, for the surface precision of the cables that have been erected and used Accurate detection is a more difficult problem. Long-distance detection has low accuracy and low detection efficiency. Some cables are installed with corresponding self-propelled detection devices on their exteriors in the early stages of installation to improve efficiency and detection accuracy. For example, the above-mentioned self-propelled high-altitude cable damage detection device installs the detection device while the cable is being installed, and realizes autonomous damage detection in the later stage. However, for cables that have already been installed, it is difficult to install such detection devices on the exterior for detection. Moreover, if a detection device is installed on the exterior of each cable during installation, the detection cost is too high. The detection device can only detect a single cable, and its use is very limited. In addition, long-span cables are prone to shaking under the action of wind, and the shaking of the cable may cause changes in the local temperature distribution, thereby affecting the infrared thermal imager's recognition of the damaged point, making it difficult to accurately analyze the damaged position on the cable surface.

[0006] In view of the above problems, it is urgent to carry out innovative design based on the original cable damage detection equipment. Summary of the invention

[0007] The object of the present invention is to provide a self-propelled automatic cable damage detection device to solve the problem of accurate and efficient damage detection on the surface of an already installed cable proposed in the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a self-propelled automatic cable damage detection equipment, comprising a lower protective shell sleeved on the outside of the cable and an upper protective shell rotatably installed on the upper end thereof, the outside of the lower protective shell is fixedly installed with a fixed seat, and a rotating frame is rotatably connected to the fixed seat, a swivel is rotatably sleeved on the swivel, and the swivel is fixedly connected to the outside of the upper protective shell, and the outside of the lower protective shell is rotatably connected to an electric-driven telescopic rod, and the output end of the electric-driven telescopic rod is fixedly connected to the swivel; the lower protective shell and the upper protective shell are both provided with a through slot for the cable to enter the detection range, and an infrared thermal imager for detecting cable damage is fixedly installed at the center position of the inner side of the lower protective shell and the upper protective shell; the outside of the lower protective shell and the upper protective shell is provided with a self-propelled mechanism that autonomously walks along the cable installation direction for auxiliary detection.

[0009] Preferably, the self-propelled mechanism includes a connecting seat fixedly mounted on the outside of the lower protective shell and the upper protective shell, a loop rope is sleeved in the connecting seat, and a driving rope is fixedly connected to the outside of the loop rope, and the driving rope is wound around the outside of the driving disk.

[0010] Preferably, the drive disk is rotatably mounted on a mounting frame, and a metal ring rod is slidably connected to the mounting frame, the metal ring rod is sleeved on the outside of the electric pole, and the outside of the metal ring rod is locked and mounted on the mounting frame by a nut.

[0011] Preferably, a connecting seat, a loop rope, a driving rope and a driving disk are provided on both sides of the lower protective shell and the upper protective shell, and the moving directions of the retractable driving ropes on both sides of the lower protective shell and the upper protective shell are the same.

[0012] Preferably, a limiting mechanism for maintaining the stability of infrared detection of the cable is provided in the retractable drive ropes on both sides of the lower protective shell and the upper protective shell.

[0013] Preferably, the limiting mechanism comprises a guide sleeve fixedly mounted on the outside of both sides of the lower protective shell, and a slide rod is slidably connected through the guide sleeve, and a support bracket is fixedly mounted on the upper end surface of the slide rod.

[0014] Preferably, a bidirectional screw is rotatably connected in the lower protective shell, and internal threaded movable seats are fixed to the outsides of threads with different rotation directions on both sides of the bidirectional screw; a convex rod is fixedly connected to the outer wall of the supporting bracket, and a transmission rotating rod is connected between the convex rod and the internal threaded movable seat.

[0015] Preferably, one end of the transmission rotating rod is rotationally connected to the internal thread moving seat, and the other end of the transmission rotating rod is rotationally connected to the convex rod.

[0016] Preferably, the inner wall of the lower protective shell is fixedly connected with a hollow guide plate, a telescopic frame is telescopically connected to the hollow guide plate, a supporting frame is fixedly connected to the telescopic frame, a positioning frame is telescopically connected to the supporting frame, and an insulating rubber column is fixedly installed on the positioning frame for squeezing to maintain cable detection stability.

[0017] Preferably, a buffer spring is elastically connected between the positioning frame and the supporting frame, and the supporting frame and the telescopic frame are fixedly integrated and telescopically movable, and the bottom of the telescopic frame is fixedly connected to the internal threaded movable seat through a base.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the self-propelled automatic cable damage detection equipment can set the installed cable between the lower protective shell and the upper protective shell by controlling the rotation of the upper protective shell, and detect the surface damage of the cable by the infrared thermal imager arranged inside it. Close-range detection can improve the detection accuracy, and controlling the infrared thermal imager to move along the cable installation direction can effectively improve the detection efficiency.

[0019] Furthermore, a self-propelled mechanism is provided on the outside of the lower protective shell and the upper protective shell for autonomously walking along the direction of cable installation to assist in detection. By controlling the rotation of the driving disks on both sides of the lower protective shell and the upper protective shell, the driving rope on one side is released outward, and the driving rope on the other side is rotated and tightened, thereby autonomously driving the lower protective shell and the upper protective shell to walk along the direction of cable installation for detection, thereby improving detection efficiency.

[0020] The metal ring rod is installed on the outside of the electric pole, and the metal ring rod is connected to the mounting frame through the metal ring rod. The metal ring rod and the mounting frame are quickly assembled by turning the nut, so that the driving disk and the driving rope can be installed and limited on the electric pole, so that the driving rope can be retracted and moved along the direction of cable installation.

[0021] Furthermore, a limiting mechanism for maintaining the stability of cable infrared detection is provided in the retractable drive ropes on both sides of the lower protective shell and the upper protective shell. Some installed cables are relatively loose and prone to shaking under the action of wind. The supporting frame is controlled to move upward by the sliding rod, and the cables within the detection range are pushed upward to adjust their tension, thereby keeping the cables within the detection range in a relatively stable state, thereby improving the accuracy of infrared detection of damaged positions on the cable surface.

[0022] While the support bracket moves upward, under the transmission of the internal thread moving seat, the telescopic bracket, the positioning bracket and the insulating rubber column on both sides can be controlled to move towards the direction close to the cable, thereby quickly clamping and limiting the position of the cable, and further keeping the cable within the detection range in the lower protective shell in a stable state. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the driving rope of the present invention.

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the drive disk of the present invention.

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the rope set of the present invention.

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the rotating frame of the present invention.

[0027] Figure 5 This is a schematic diagram of the structure of the upper protective shell of the present invention in an open state.

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the infrared thermal imager of the present invention.

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the support frame of the present invention.

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the sliding rod of the present invention.

[0031] Fig. 9 It is a schematic diagram of the three-dimensional structure of the bidirectional screw rod of the present invention.

[0032] Fig.10 It is a schematic diagram of the three-dimensional structure of the insulating rubber column of the present invention.

[0033] Fig.11 It is a schematic diagram of the three-dimensional structure of the base of the present invention.

[0034] In the figure: 1. lower protective shell; 2. upper protective shell; 3. fixed seat; 4. rotating frame; 5. swivel; 6. electric drive telescopic rod; 7. slot; 8. infrared thermal imager; 9. connecting seat; 10. rope; 11. driving rope; 12. driving plate; 13. mounting frame; 14. metal ring rod; 15. nut; 16. guide sleeve; 17. slide rod; 18. supporting frame; 19. two-way screw rod; 20. internal thread moving seat; 21. protruding rod; 22. transmission rotating rod; 23. hollow guide plate; 24. telescopic frame; 25. support frame; 26. positioning frame; 27. insulating rubber column; 28. buffer spring; 29. ​​base. DETAILED DESCRIPTION

[0035] 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.

[0036] Example 1: Please refer to Figure 1-Figure 11The present invention provides the following technical solutions: a self-propelled automatic cable damage detection device, comprising a lower protective shell 1 sleeved on the outside of the cable and an upper protective shell 2 rotatably mounted on the upper end thereof, a fixed seat 3 is fixedly mounted on the outside of the lower protective shell 1, a rotating frame 4 is rotatably connected to the fixed seat 3, a swivel 5 is rotatably sleeved on the swivel frame 4, and the swivel frame 4 is fixedly connected to the outside of the upper protective shell 2, an electric drive telescopic rod 6 is rotatably connected to the outside of the lower protective shell 1, and the output end of the electric drive telescopic rod 6 is fixedly connected to the swivel 5; the lower protective shell 1 and the upper protective shell 2 are both provided with a through slot 7 for the cable to enter the detection range, and an infrared thermal imager 8 for detecting cable damage is fixedly mounted at the center position of the inner side of the lower protective shell 1 and the upper protective shell 2; the outer side of the lower protective shell 1 and the upper protective shell 2 is provided with a self-propelled mechanism that autonomously walks along the cable installation direction for auxiliary detection.

[0037] The self-propelled mechanism includes a connecting seat 9 fixedly mounted on the outside of the lower protective shell 1 and the upper protective shell 2. A loop rope 10 is sleeved and connected in the connecting seat 9, and a driving rope 11 is fixedly connected to the outside of the loop rope 10. The driving rope 11 is wound around the outside of the driving disk 12.

[0038] The driving disc 12 is rotatably mounted on the mounting frame 13 , and a metal ring rod 14 is slidably connected to the mounting frame 13 . The metal ring rod 14 is sleeved on the outside of the electric pole, and the outside of the metal ring rod 14 is locked and mounted on the mounting frame 13 by a nut 15 .

[0039] A connecting seat 9, a loop rope 10, a driving rope 11 and a driving disk 12 are provided on both sides of the lower protective shell 1 and the upper protective shell 2. The moving directions of the retracted driving rope 11 on both sides of the lower protective shell 1 and the upper protective shell 2 are the same.

[0040] For the cable that needs to be tested, select the electric poles connected on both sides of the cable, sleeve the metal ring rod 14 on the outside of the electric pole, sleeve the mounting frame 13 on the metal ring rod 14, and rotate and tighten the nut 15 on the metal ring rod 14, so that the mounting frame 13 and the metal ring rod 14 are stably installed on the outside of the electric pole, operate the motor outside the mounting frame 13 to rotate, control the driving disk 12 to rotate, and make the driving rope 11 retractable and retractable, and adjust the length of the driving rope 11 according to the span between the two electric poles.

[0041] The electric-drive telescopic rod 6 is operated to control the rotation of the rotating frame 4, and the rotating frame 4 drives the upper protective shell 2 connected to the top of the lower protective shell 1 to rotate and open, and the cable is passed through the through groove 7 of the lower protective shell 1, and then the upper protective shell 2 is controlled to rotate and close above the lower protective shell 1, so as to quickly install the detection equipment on the outside of the already installed cable.

[0042] The temperature distribution on the cable surface is measured by the infrared thermal imager 8 in the upper protective shell 2 and the lower protective shell 1 to diagnose the degree of cable damage. During the detection process, the driving disks 12 on both sides are controlled to rotate so that the driving rope 11 on one side is in a released moving state, and the driving rope 11 on the other side is in a reeled moving state. Under the pulling force of the driving ropes 11 on both sides, the lower protective shell 1 and the upper protective shell 2 are made to move autonomously along the direction of cable installation for detection, while the infrared thermal imager 8 is able to accurately detect cable surface damage at close range, and at the same time, the detection accuracy and automation level are improved without manual measurement.

[0043] Embodiment 2: Based on Embodiment 1, a limiting mechanism is further disclosed, and its specific structure is as follows: a limiting mechanism for maintaining the stability of infrared detection of cables is provided in the lower protective shell 1. The limiting mechanism includes a guide sleeve 16 fixedly mounted on the outside of both sides of the lower protective shell 1, and a slide rod 17 is slidably connected through the guide sleeve 16, and a support bracket 18 is fixedly mounted on the upper end surface of the slide rod 17.

[0044] A bidirectional screw 19 is rotatably connected in the lower protective shell 1, and internal thread moving seats 20 are fixed to the outside of the threads of different rotation directions on both sides of the bidirectional screw 19; a convex rod 21 is fixedly connected to the outer wall of the supporting bracket 18, and a transmission rotating rod 22 is connected between the convex rod 21 and the internal thread moving seat 20.

[0045] One end of the transmission rotating rod 22 is rotatably connected to the internal thread moving seat 20 , and the other end of the transmission rotating rod 22 is rotatably connected to the protruding rod 21 .

[0046] A hollow guide plate 23 is fixedly connected to the inner wall of the lower protective shell 1, a telescopic frame 24 is telescopically connected to the hollow guide plate 23, a supporting frame 25 is fixedly connected to the telescopic frame 24, a positioning frame 26 is telescopically connected to the supporting frame 25, and an insulating rubber column 27 is fixedly installed on the positioning frame 26 for squeezing and maintaining the stability of the cable detection.

[0047] A buffer spring 28 is elastically connected between the positioning frame 26 and the supporting frame 25 , and the supporting frame 25 and the telescopic frame 24 are fixedly integrated and telescopically movable, and the bottom of the telescopic frame 24 is fixedly connected to the internal thread moving seat 20 through a base 29 .

[0048] During the detection process, if the cable is installed loosely and is in a shaking state under the action of wind, stop the lower protective shell 1 and the upper protective shell 2 from moving along the cable, and run the motor outside the lower protective shell 1 to control the two-way screw 19 to rotate. Under the thread transmission, the internal thread moving seat 20 with different rotation directions on both sides of the two-way screw 19 is moved in opposite directions, and the two ends of the transmission rotating rod 22 connected between the internal thread moving seat 20 and the protruding rod 21 rotate accordingly. The rotation of the transmission rotating rod 22 pushes the protruding rod 21 and the supporting bracket 18 to move upward, and the sliding rod 17 under the supporting bracket 18 passes through the guide sliding sleeve 16 and slides upward. The upward movement of the supporting bracket 18 pushes the cable upward, adjusts the tension of the cable, and maintains the relative stability of the cable.

[0049] When the internal thread moving seat 20 moves laterally, the telescopic frame 24 is driven to move synchronously through the base 29. The telescopic frame 24 is connected to the side of the hollow guide plate 23 and telescopically moves, and the telescopic frame 24 drives the side support frame 25 and the positioning frame 26 to move in the direction close to the cable. The insulating rubber column 27 on the positioning frame 26 is pressed against the outside of the cable to clamp the cable surface. The support frame 25 continues to move and is pressed against the side of the positioning frame 26 by the buffer spring 28, so that the insulating rubber column 27 can be stably clamped on the outside of the cable, further maintaining the stability of the cable installation, so that the cable in the lower protective shell 1 can maintain a stable detection state. After the detection of this part of the cable, the clamped and limited cable is loosened, and the lower protective shell 1 is continued to be moved to drive the infrared thermal imager 8 to move to the next detection position of the cable. This reciprocating process can accurately detect the shaking cable segment by segment.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-propelled cable damage automatic detection device, comprising a lower protective shell (1) sleeved on the outside of the cable and an upper protective shell (2) rotatably mounted on the upper end thereof, characterized in that: A fixed seat (3) is fixedly installed on the outside of the lower protective shell (1), a rotating frame (4) is rotatably connected to the fixed seat (3), a rotating ring (5) is rotatably sleeved on the rotating frame (4), and the rotating frame (4) is fixedly connected to the outside of the upper protective shell (2), and an electric drive telescopic rod (6) is rotatably connected to the outside of the lower protective shell (1), and the output end of the electric drive telescopic rod (6) is fixedly connected to the rotating ring (5); The lower protective shell (1) and the upper protective shell (2) are both provided with a slot (7) for allowing the cable to enter the detection range, and an infrared thermal imager (8) for detecting cable damage is fixedly installed at the center position of the inner side of the lower protective shell (1) and the upper protective shell (2); The exterior of the lower protective shell (1) and the upper protective shell (2) is provided with a self-propelled mechanism that autonomously walks along the cable installation direction to assist in detection.

2. The self-propelled cable damage automatic detection device according to claim 1 is characterized in that: The self-propelled mechanism comprises a connecting seat (9) fixedly mounted on the outside of the lower protective shell (1) and the upper protective shell (2), a sleeve rope (10) sleeved and connected in the connecting seat (9), and a driving rope (11) is fixedly connected to the outside of the sleeve rope (10), and the driving rope (11) is wound around the outside of the driving disc (12).

3. The self-propelled cable damage automatic detection device according to claim 2 is characterized in that: The driving disk (12) is rotatably mounted on the mounting frame (13), and a metal ring rod (14) is slidably connected to the mounting frame (13), the metal ring rod (14) is sleeved on the outside of the electric pole, and the outside of the metal ring rod (14) is locked and mounted on the mounting frame (13) by a nut (15).

4. The self-propelled cable damage automatic detection device according to claim 2 is characterized in that: A connecting seat (9), a loop rope (10), a driving rope (11) and a driving disk (12) are provided on both sides of the lower protective shell (1) and the upper protective shell (2); the moving directions of the retractable driving rope (11) on both sides of the lower protective shell (1) and the upper protective shell (2) are the same.

5. The self-propelled cable damage automatic detection device according to claim 1 is characterized in that: A limiting mechanism for maintaining infrared detection stability of the cable is arranged in the lower protective shell (1).

6. The self-propelled cable damage automatic detection device according to claim 5 is characterized in that: The limiting mechanism comprises a guide sleeve (16) fixedly mounted on the outside of both sides of the lower protective shell (1), a slide rod (17) slidably penetrates through the guide sleeve (16), and a support bracket (18) is fixedly mounted on the upper end surface of the slide rod (17).

7. The self-propelled cable damage automatic detection device according to claim 6 is characterized by: A bidirectional screw rod (19) is rotatably connected in the lower protective housing (1), and internal thread movable seats (20) are fixed to the outsides of threads with different rotation directions on both sides of the bidirectional screw rod (19); A protruding rod (21) is fixedly connected to the outer side wall of the support bracket (18), and a transmission rotating rod (22) is connected between the protruding rod (21) and the internal thread movable seat (20).

8. The self-propelled cable damage automatic detection device according to claim 7 is characterized in that: One end of the transmission rotating rod (22) is rotationally connected to the internal thread moving seat (20), and the other end of the transmission rotating rod (22) is rotationally connected to the protruding rod (21).

9. The self-propelled cable damage automatic detection device according to claim 8, characterized in that: A hollow guide plate (23) is fixedly connected to the inner wall of the lower protective shell (1); a telescopic frame (24) is telescopically connected to the hollow guide plate (23); a support frame (25) is fixedly connected to the telescopic frame (24); a positioning frame (26) is telescopically connected to the support frame (25); and an insulating rubber column (27) for squeezing and maintaining stability of the cable detection is fixedly installed on the positioning frame (26).

10. The self-propelled cable damage automatic detection device according to claim 9, characterized in that: A buffer spring (28) is elastically connected between the positioning frame (26) and the support frame (25), and the support frame (25) and the telescopic frame (24) are fixedly integrated and telescopically movable, and the bottom of the telescopic frame (24) is fixedly connected to the internal threaded movable seat (20) via a base (29).

Images