Overhead line detection device

Abstract

The invention discloses an overhead line detection device, and relates to the technical field of line detection, the overhead line detection device comprises a mounting box and a walking mechanism arranged on a support of the mounting box, and two walking wheels of the walking mechanism are mounted on an overhead line; the at least one detection probe is arranged on the bracket; the two stability maintaining assemblies are matched with the two walking wheels in a one-to-one mode, each stability maintaining assembly comprises an arc-shaped guide rail fixedly connected to the support, and a connecting rod is rotationally connected to the arc-shaped guide rail in the circumferential direction; due to the fact that the two sets of stability maintaining assemblies are arranged, in the obstacle crossing process of one auxiliary wheel, the other auxiliary wheel is in stability maintaining cooperation with the walking wheel matched with the auxiliary wheel, the device can continue to be kept in the stable state in the obstacle crossing process, on one hand, under the condition that obstacle crossing is not assisted by manpower, the detection area of the device is remarkably increased through automatic obstacle crossing of the device, and the detection efficiency is improved; and on the other hand, compared with manual auxiliary obstacle crossing, the device can automatically cross obstacles, and the detection efficiency of the device on the overhead line is improved.

Description

Technical Field

[0001] The invention relates to the technical field of line detection, and in particular to an overhead line detection device. Background Art

[0002] Overhead lines are exposed to the natural environment for a long time and are easily affected by various factors, such as wind, sun, rain, lightning, etc. These factors may cause insulation damage, wire breakage, tower tilt and other faults. Through regular inspection, potential faults can be discovered in time, and corresponding maintenance measures can be taken to prevent faults from occurring, thus ensuring the continuity and stability of power supply.

[0003] The patent with announcement number CN116576919A discloses a line detection device and detection method, which includes a mobile frame, a driving module, a detection module, an image acquisition module, a cutting module and a conveying module. The driving module is installed on the mobile frame and is used to drive the mobile frame to move along the extended track of the line. The image acquisition module is installed on the mobile frame and is used to capture the image of debris on the line. The conveying module is installed on the mobile frame and is connected to the cutting module so that the cutting module can be controlled to approach or move away from the line according to the debris image. The detection module is installed on the mobile frame and is used to detect the line. When the mobile frame moves along the extended track of the line, the image acquisition module captures the image of debris on the line. The conveying module controls the cutting module to approach or move away from the line according to the debris image. The debris on the line is cut by the cutting module to ensure that there is no debris entangled in the detection area of ​​the detection module, thereby improving the detection effect of the detection module on the line.

[0004] In the prior art such as the above-mentioned patent, the device can move along the extension direction of the line and detect the line during the movement. However, during the movement of the device, it is inevitable to encounter areas with pin insulators on the line. If the device is only used to detect between two pin insulators, the detection area of ​​the device will be limited. If the device is manually placed across the pin insulators, it will not only be inconvenient to operate but also affect the detection efficiency. Summary of the invention

[0005] The object of the present invention is to provide an overhead line detection device to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: an overhead line detection device, comprising a mounting box and a traveling mechanism arranged on a bracket of the mounting box, wherein two traveling wheels of the traveling mechanism are mounted on the overhead line; a detection unit arranged on the bracket; two stabilization components cooperating with the two traveling wheels one by one, each stabilization component comprising: an arcuate guide rail, which is fixedly connected to the bracket and on which a connecting rod is connected for circumferential rotation; an auxiliary wheel, whose rotating shaft is elastically slidably connected to the connecting rod along a radial direction of the arcuate guide rail, and the auxiliary wheel has a stabilization station in the stroke of rotation relative to the arcuate guide rail through the connecting rod, which vertically presses against the overhead line from below the overhead line to achieve misaligned clamping of the overhead line with the corresponding traveling wheel, and an obstacle avoidance station presses against the overhead line laterally from the side of the overhead line; at least one trigger wheel, which drives the auxiliary wheel to rotate and switch from the stabilization station to the obstacle avoidance station through the transmission assembly when it is obstructed by the crossbeam supporting the overhead line.

[0007] Furthermore, the transmission assembly includes: a first slide plate, which is vertically slidably connected to the bracket, to which a first rack is fixedly connected, and an auxiliary wheel is rotatably connected to the first slide plate; a first elastic member, which drives the first slide plate to slide upward relative to the bracket during the process of restoring its deformation; a second rack, which is vertically slidably connected to the bracket, and the second rack is meshed with the first rack with tooth surfaces facing each other and simultaneously engages with a gear rotatably connected to the bracket; an arcuate gear ring, which is fixedly connected to the connecting rod, and the arcuate gear ring is meshed with a third rack fixedly connected to the second rack.

[0008] Furthermore, the first elastic member includes a first compression spring, a top end of the first compression spring is connected to the first slide plate, and a bottom end of the first compression spring is connected to the mounting box.

[0009] Furthermore, a slider is provided on the rotating shaft of the auxiliary wheel, and a slide groove is provided on the connecting rod. The rotating shaft of the auxiliary wheel realizes a sliding connection with the connecting rod through the sliding cooperation between the slider and the slide groove; a second elastic member is provided between the slider and the connecting rod, and the elastic force of the second elastic member drives the auxiliary wheel to abut against the overhead line.

[0010] Furthermore, the second elastic member includes a second compression spring arranged in the slide groove, one end of the second compression spring is connected to the slider, and the other end is connected to the connecting rod.

[0011] Furthermore, the walking mechanism also includes at least one driving motor, which is fixedly mounted on the bracket, and the output shaft of the driving motor is coaxially fixedly connected to one of the walking wheels.

[0012] Furthermore, the detection unit includes an infrared probe and two cable sheath detection probes arranged in parallel, and the infrared probe and the two cable sheath detection probes are all facing the axis of the overhead line.

[0013] Furthermore, the number of trigger wheels is 2-3.

[0014] In the above technical scheme, the present invention provides an overhead line detection device, which enables the device to move along the extension direction of the line through a walking mechanism, and the device can detect the line through a detection probe during the movement. When the device moves to the pin insulator area, the trigger wheel will first contact the cross arm of the pin insulator, and the obstruction of the cross arm will cause the trigger wheel to move relative to the bracket. During the vertical movement of the trigger wheel relative to the bracket, the auxiliary wheel is driven by the transmission component to switch from the stabilization position to the obstacle avoidance position and the walking wheel will continue to travel. Since there are two groups of stabilization components, one of the auxiliary wheels is in the process of overcoming obstacles, and the other auxiliary wheel cooperates with the walking wheel that cooperates with it for stabilization, so that the device can continue to maintain a stable state during the process of overcoming obstacles. On the one hand, under the condition of no manual assistance in overcoming obstacles, the device's self-obstacle overcoming obstacles significantly increases the detection area of ​​the device. On the other hand, compared with manual assistance in overcoming obstacles, the device's ability to self-overcome obstacles improves the device's detection efficiency of overhead lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the structure of a pin-type insulator provided in an embodiment of the present invention being located between two dimensional stabilizing components; Figure 2 A schematic diagram of the structure of the device provided by an embodiment of the present invention from another perspective; Figure 3 A schematic diagram of the structure of a transmission assembly provided in an embodiment of the present invention; Figure 4 A schematic diagram of the structure of the device provided by an embodiment of the present invention in an obstacle crossing state; Figure 5 A schematic diagram of a cross-sectional structure of a portion of a connecting rod provided in an embodiment of the present invention.

[0017] Description of reference numerals: 1. Mounting box; 101. Overhead line; 102. Cross arm; 11. Bracket; 111. Detection probe; 2. Traveling mechanism; 21. Traveling wheel; 22. Driving motor; 3. Stabilization component; 31. Arc guide rail; 32. Auxiliary wheel; 321. Rotating shaft; 33. Trigger wheel; 4. Connecting rod; 41. Slide; 5. Transmission component; 51. First slide plate; 511. First rack; 52. First elastic member; 53. Second rack; 531. Third rack; 54. Arc gear ring; 55. Gear; 6. Slider; 61. Second elastic member; 7. Power supply line. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0019] See also Figure 1-5 An overhead line detection device provided by an embodiment of the present invention comprises a mounting box 1 and a traveling mechanism 2 arranged on a bracket 11 of the mounting box 1, wherein two traveling wheels 21 of the traveling mechanism 2 are mounted on an overhead line 101; a detection unit 111 arranged on the bracket 11; two stabilization components 3 matched with the two traveling wheels 21 one by one, each stabilization component 3 comprising an arcuate guide rail 31, an auxiliary wheel 32 and a trigger wheel 33, the arcuate guide rail 31 being fixedly connected to the bracket 11, and a connecting rod 4 being connected to the arcuate guide rail 31 in a circumferentially rotatable manner; a rotating shaft 321 of the auxiliary wheel 32 is elastically slidably connected to the connecting rod 4 along a radial direction of the arcuate guide rail 31, and the auxiliary wheel 32 has the following features in its rotation stroke relative to the arcuate guide rail 31: a vertical rotation from the bottom of the overhead line 101 to the bottom of the overhead line 101; a vertical rotation from the bottom of the overhead line 101 to ... A stabilization station is provided for pressing against the overhead line 101 to achieve a staggered clamping of the overhead line 101 with the corresponding walking wheel 21, and an obstacle avoidance station is provided for pressing against the overhead line 101 laterally from the side of the overhead line 101; the trigger wheel 33 is vertically slidably connected to the bracket 11, and when the trigger wheel 33 is obstructed by the cross arm 102 supporting the overhead line 101, the auxiliary wheel 33 is driven by the transmission assembly 5 to rotate and switch from the stabilization station to the obstacle avoidance station; when the trigger wheel 33 passes over the cross arm 102, the auxiliary wheel 32 is driven by the transmission assembly 5 to switch from the obstacle avoidance station to the stabilization station; specifically, the detection unit 111 includes an infrared probe and two cable sheath detection probes arranged in parallel, and the infrared probe and the two cable sheath detection probes are all facing the axis of the overhead line 101.

[0020] In the above technical solution, the present invention provides an overhead line detection device, which enables the device to move along the extension direction of the line through the walking mechanism 2, and the device can perform comprehensive detection of the line through three detection probes 111 during the movement. When the device moves to the pin insulator area, the walking wheels 21 and the auxiliary wheels 32 in a relatively distant group of stabilization components 3 cooperate to continue to maintain a stabilization state during the movement of the device, while the trigger wheel 33 of the stabilization component close to the pin insulator will first contact the cross arm 102 of the pin insulator, and the obstruction of the cross arm 102 will cause the trigger wheel 33 to move relative to the bracket 11. During the movement of the trigger wheel 33 relative to the bracket 11, the auxiliary wheel 32 is driven by the transmission component 5 to switch from the stabilization station to the obstacle avoidance station and the walking wheel 21 will continue to move. Since there are two groups of stabilization components 3, the two groups of stabilization components 3 will perform obstacle crossing work in turn. During the obstacle crossing work of one group of stabilization components 3, the other group of stabilization components 3 maintains the stabilization state of the device. On the one hand, under the condition of no manual assistance in obstacle crossing, the device's self-obstacle crossing significantly increases the device's detection area. On the other hand, compared with manual assisted obstacle crossing, the device's ability to self-cross obstacles improves the device's detection efficiency of the line.

[0021] Among them, Figure 3The transmission assembly 5 includes a first slide plate 51, a first elastic member 52, a second rack 53 and an arcuate gear ring 54. The first slide plate 51 is vertically slidably connected to the bracket 11, a first rack 511 is fixedly connected to the first slide plate 51, and the auxiliary wheel 32 is rotatably connected to the first slide plate 51; the first elastic member 52 drives the first slide plate 51 to slide upward relative to the bracket 11 during the process of restoring the deformation; the second rack 53 is vertically slidably connected to the bracket 11, and the second rack 53 and the first rack 511 are meshed with the gear 55 rotatably connected to the bracket 11 in a manner where the tooth surfaces are opposite; the arcuate gear ring 54 is fixedly connected to the connecting rod 4, and the arcuate gear ring 54 is meshed with the third rack 531 fixedly connected to the second rack 53. Specifically, the first elastic member 52 includes a first compression spring, the top end of the first compression spring is connected to the first slide plate 51, and the bottom end is connected to the mounting box 1. When the trigger wheel 33 is blocked by the cross arm 102, the first slide plate 51 rotatably connected to the trigger wheel 33 will slide vertically downward relative to the bracket 11. The first slide plate 51 will drive the first rack 511 to slide vertically downward synchronously during the vertical downward sliding process, and the first slide plate 51 will squeeze the first compression spring during the vertical downward sliding process. The vertical downward sliding of the first rack 511 will drive the gear 55 to rotate. The second rack 53 is slidably connected to the bracket 11 through the second slide plate. Since the second rack 53 and the first rack 511 are meshed with the gear 55 rotatably connected to the bracket 11 in a manner in which the tooth surfaces are opposite, that is, the gear 55 will drive the second rack 53 to move synchronously in the opposite direction of the first rack 511 (the second rack 53 will The arc-shaped gear ring 54 is meshed with the third rack 531, so the third rack 531 will also slide vertically upward with the second rack 53. The arc-shaped gear ring 54 is meshed with the third rack 531, so the third rack 531 will drive the arc-shaped gear ring 54 to move along the circumferential direction of the arc-shaped guide rail 31 while sliding upward. The circumference of the arc of movement of the arc-shaped gear ring 54 is coaxial with the overhead line 101. At the same time, the auxiliary wheel 32 is fixedly connected to the arc-shaped gear ring 54 through the connecting rod 4, so the auxiliary wheel 32 will also move relative to the overhead line 101. The arc-shaped gear ring 54 drives the auxiliary wheel 32 to move to an angle where the pin insulator does not hinder the advancement of the auxiliary wheel 32 (that is, the auxiliary wheel 32 moves from the stabilization station to the obstacle avoidance station).

[0022] When the trigger wheel 33 gradually ends its contact with the cross arm 102, the first slide plate 51 is subjected to the force of the first compression spring to restore its deformation, causing the first slide plate 51 to slide vertically upward, and then the first rack 511 slides vertically upward, and the first rack 511 drives the second rack 53 and the third rack 531 to slide vertically downward through the gear 55, and the third rack 531 drives the arc gear ring 54 to move from the obstacle avoidance position to the stabilization position, thereby realizing the function of the device crossing the pin insulator.

[0023] Among them, Figure 5 A slider 6 is provided on the rotating shaft 321 of the auxiliary wheel 32, and a slide groove 41 is provided on the connecting rod 4. The rotating shaft 321 of the auxiliary wheel 32 realizes a sliding connection with the connecting rod 4 through the sliding cooperation between the slider 6 and the slide groove 41; a second elastic member 61 is provided between the slider 6 and the connecting rod 4, and the elastic force of the second elastic member 61 drives the auxiliary wheel 32 to abut against the overhead line 101. Specifically, the second elastic member 61 includes a second compression spring arranged in the slide groove 41, one end of the second compression spring is connected to the slider 6, and the other end is connected to the connecting rod 4. When the auxiliary wheel 32 is in the stabilizing position, the slider 6 where the rotating shaft 321 of the auxiliary wheel 32 is located is subjected to the elastic force of the second compression spring, so that the auxiliary wheel 32 can abut against the overhead line 101 and cooperate with the walking wheel 21 so that the device is in a stable moving state during the movement. When the auxiliary wheel 32 is switched from the stabilizing position to the obstacle avoidance position, the elastic force of the second compression spring always points to the axis of the overhead line 101, and then the auxiliary wheel 32 always abuts against the overhead line 101 during the movement so that the device is also tightly connected to the overhead line 101 during the obstacle surmounting process. When the auxiliary wheel 32 is in the obstacle avoidance position and is passing over the pin insulator, the top of the pin insulator will cause the auxiliary wheel 32 to slide relative to the connecting rod 4 during movement. On the one hand, the auxiliary wheel 32 can pass over the top of the pin insulator even if it is blocked by the pin insulator at the obstacle avoidance position. On the other hand, the auxiliary wheel 32 can abut against the overhead line 101 during the process of passing over the pin insulator to maintain the movement stability of the device. In addition, after the auxiliary wheel 32 passes over the pin insulator, the elastic force of the second compression spring can continue to make the auxiliary wheel 32 abut against the overhead line 101.

[0024] The walking mechanism 2 further includes at least one driving motor 22, which is fixedly mounted on the bracket 11, and the output shaft of the driving motor 22 is coaxially fixedly connected to one of the walking wheels 21. The output shaft of the driving motor 22 rotates to drive one walking wheel 21 to rotate, and the rotation of this walking wheel 21 can make the other walking wheel 21 and the two auxiliary wheels 32 move along the extension direction of the overhead line 101. It is worth mentioning that the two walking wheels 21 can also be driven to move synchronously by a driving motor 22 and a conveyor belt (not shown in the figure, this is the prior art and will not be described in detail here), so that one motor provides power for the two walking wheels 21 to improve the obstacle crossing ability of the device; if two driving motors 22 can be installed within the carrying capacity of the device, the output shafts of the two driving motors 22 are coaxially fixedly connected to the two walking wheels 21 in a one-to-one correspondence, so that even if one driving motor 22 is damaged during the detection process, the other driving motor 22 can enable the device to move to the position where the device is removed from the overhead line 101 (i.e., the pole), and the power supply line 7 on the mounting box 1 provides power to the driving motor 22.

[0025] Among them, the number of trigger wheels 33 is 2-3. Since the auxiliary wheel 32 needs to continue to move forward for a distance after being in the obstacle avoidance position, when 2-3 trigger wheels 33 are provided, the trigger wheel 33 can move a distance under the cross arm 102, so that the first slide plate 51 is in a state of pressing down the first compression spring for a period of time to keep the auxiliary wheel 32 able to move forward for a distance. It is worth mentioning that there are two obstacle overcoming states of the auxiliary wheel 32 during the obstacle overcoming process. The first auxiliary wheel 32 is in a rotating state following the arc gear ring 54 during the obstacle overcoming process. The second auxiliary wheel 32 maintains this state for a distance after moving to a position where it can cross the pin insulator. The obstacle overcoming processes of the two auxiliary wheels 32 depend on the number and size of the trigger wheels 33 or the number of teeth of each rack and the arc gear ring 54.

[0026] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An overhead line detection device, comprising a mounting box (1) and a running mechanism (2) arranged on a bracket (11) of the mounting box (1), wherein two running wheels (21) of the running mechanism (2) are mounted on an overhead line (101); characterized in that: Also includes: A detection unit (111) disposed on the bracket (11); Two stabilization components (3) matched one by one with the two running wheels (21), each stabilization component (3) comprising: An arc-shaped guide rail (31) is fixedly connected to the bracket (11) and has a connecting rod (4) rotatably connected thereto in a circumferential direction; An auxiliary wheel (32) having a rotating shaft (321) elastically slidably connected to the connecting rod (4) along a radial direction of the arc-shaped guide rail (31), wherein the auxiliary wheel (32) has, in its travel relative to the arc-shaped guide rail (31) through the connecting rod (4), a stabilization station for vertically pressing against the overhead line (101) from below the overhead line (101) to achieve offset clamping of the overhead line (101) with the corresponding running wheel (21), and an obstacle avoidance station for horizontally pressing against the overhead line (101) from the side of the overhead line (101); At least one trigger wheel (33) drives the auxiliary wheel (32) to rotate and switch from a stabilization position to an obstacle avoidance position through a transmission assembly (5) when obstructed by a cross arm (102) supporting an overhead line (101).

2. An overhead line detection device according to claim 1, characterized in that: The transmission assembly (5) comprises: A first slide plate (51) is vertically slidably connected to the bracket (11), and a first rack (511) is fixedly connected to the first slide plate; the auxiliary wheel (32) is rotatably connected to the first slide plate (51); A first elastic member (52) which drives the first slide plate (51) to slide upward relative to the bracket (11) during the process of restoring its deformation; A second rack (53) is vertically slidably connected to the bracket (11), and the second rack (53) and the first rack (511) are meshed with a gear (55) rotatably connected to the bracket (11) in a manner where the tooth surfaces of the second rack (53) and the first rack (511) are opposite to each other; The arc-shaped gear ring (54) is fixedly connected to the connecting rod (4), and the arc-shaped gear ring (54) is meshed with a third rack (531) fixedly connected to the second rack (53).

3. An overhead line detection device according to claim 2, characterized in that: The first elastic member (52) comprises a first compression spring, the top end of the first compression spring is connected to the first slide plate (51), and the bottom end is connected to the mounting box (1).

4. An overhead line detection device according to claim 1, characterized in that: A slider (6) is provided on the rotating shaft (321) of the auxiliary wheel (32), and a slide groove (41) is provided on the connecting rod (4); the rotating shaft (321) of the auxiliary wheel (32) is slidably connected to the connecting rod (4) through the sliding cooperation between the slider (6) and the slide groove (41); a second elastic member (61) is provided between the slider (6) and the connecting rod (4); and the elastic force of the second elastic member (61) drives the auxiliary wheel (32) to abut against the overhead line (101).

5. An overhead line detection device according to claim 4, characterized in that: The second elastic member (61) comprises a second compression spring arranged in the slide groove (41), one end of the second compression spring being connected to the slide block (6) and the other end being connected to the connecting rod (4).

6. An overhead line detection device according to claim 1, characterized in that: The walking mechanism (2) further comprises at least one driving motor (22), wherein the driving motor (22) is fixedly mounted on the bracket (11), and an output shaft of the driving motor (22) is coaxially fixedly connected to one of the walking wheels (21).

7. An overhead line detection device according to claim 1, characterized in that: The detection unit (111) comprises an infrared probe and two cable sheath detection probes arranged in parallel.

8. An overhead line detection device according to claim 1, characterized in that: The number of the trigger wheels (33) is 2-3.

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