Nondestructive testing device for crimping quality of live line

Abstract

The utility model relates to a nondestructive testing device for the crimping quality of a live line, which comprises a fixed frame, the front end and the rear end of the fixed frame are respectively provided with a walking module, and the fixed frame is provided with a radiographic testing assembly capable of ascending and descending and rotating in a vertical plane; the walking module comprises an inverted-V-shaped supporting framework and a pair of walking wheels, the two side edges of the supporting framework can be opened and closed leftwards and rightwards, the walking wheels are arranged leftwards and rightwards and distributed in an inverted-V shape, the walking wheels are installed on the inner sides of the left side edge and the right side edge of the supporting framework respectively and can walk along a live line, and an obstacle crossing wheel is coaxially fixed to the inner side of each walking wheel; the wheel diameter of the obstacle crossing wheels is larger than that of the walking wheels. The obstacle crossing device is reasonable in design, the supporting framework of the walking module can be opened and closed left and right, smooth transition of the device under the line spacing condition of different voltage level splitting numbers of a power transmission line can be guaranteed, the problem of changing lines with different line spacing is solved skillfully, and the obstacle crossing efficiency of the device is improved by arranging the obstacle crossing wheels.

Description

Technical Field

[0001] The utility model belongs to the technical field of live line detection, and particularly relates to a non-destructive detection device for the crimping quality of live lines. Background Technique

[0002] Live lines (such as high-voltage transmission lines) play a crucial role in the power system. As the urban scale gradually expands, the number of transmission cables is also increasing. Since the laying of cables is more concealed compared to overhead lines, it is more difficult to locate and repair the fault points after a failure. The traditional detection method for high-voltage transmission lines mainly relies on regular manual patrols. This method has certain risks and difficulties because the operator needs to approach the high-voltage line, which may lead to the risk of electric shock and operational difficulties.

[0003] To solve the risks and difficulties in live line detection, a device that can detect across obstacles is needed. Such a device can perform safe and efficient detection without the operator approaching the high-voltage line, reducing the risk to the operator and improving the convenience and reliability of detection.

[0004] Currently, there are already some live line detection devices. For example, a kind of X-ray transmission line defect detection equipment and method based on RTK positioning disclosed in Chinese Patent Publication No. CN202111395018 includes a first unmanned aerial vehicle, a second unmanned aerial vehicle, a load quick-release mounting device, a ray emission device, a manipulator device, and an X-ray imaging device; the first unmanned aerial vehicle and the second unmanned aerial vehicle are equipped with an RTK system for positioning through the RTK system; the ray emission device is connected to the first unmanned aerial vehicle through the load quick-release mounting device, the manipulator device is connected to the second unmanned aerial vehicle through the load quick-release mounting device, and the manipulator device grabs the X-ray imaging device. When used on live lines, the line to be detected does not need to be powered off and there is no need to climb the tower. It can perform rapid defect detection without personnel contact, avoiding personal injury accidents and improving the detection efficiency. However, the above patent uses the first unmanned aerial vehicle and the second unmanned aerial vehicle in cooperation, and there are some limitations in its actual application. For example, due to weather conditions, the unmanned aerial vehicle cannot operate as quickly as usual, cannot reach the position of the measured transmission line in time, and is not convenient for detecting across obstacles.

[0005] For another example, Chinese Patent Publication No. CN202011117459 discloses an X-ray detection device for a strain clamp of an overhead line and its detection method, including an X-ray source, a detector and a bracket. The X-ray source and the detector are respectively arranged at both ends of the bracket. The X-ray source irradiates X-rays onto the detector, and the strain clamp to be detected is in the X-ray irradiation area on the surface of the detector. Pulley wheels for the detection device to slide on the line are arranged on both sides of the detector. The pulley wheels allow the detection device to slide on the line. The operator installs the pulley wheels on the line and uses other auxiliary tools such as an insulating rope to move the detection device along the line, so that the detection device can accurately reach the strain clamp to be detected. This device can detect the strain clamp under a strong electric field without power outage, which can reduce the economic loss caused by power outage and also reduce the detection difficulty of the strain clamp. However, in the above patent, the distance between the pulley wheels on both sides of the detector is fixed and cannot adapt to the line distance of different voltage levels and split numbers of transmission lines (such as 8-split conductors), resulting in certain limitations in use.

[0006] In view of this, how to overcome the defects existing in the current live line detection and improve the detection efficiency and accuracy has become a technical problem that needs to be solved urgently, and this case is thus born. Utility Model Content

[0007] The present utility model makes improvements to the above-mentioned existing technical problems, that is, the technical problem to be solved by the present utility model is to provide a non-destructive detection device for the crimping quality of live lines, with reasonable design and improved detection efficiency and accuracy.

[0008] To achieve the above object, the technical solution adopted by the present utility model is: a non-destructive detection device for the crimping quality of live lines, including a fixed frame with walking modules respectively arranged at the front and rear ends. The fixed frame is provided with a ray detection component that can be lifted and rotated in a vertical plane; the walking module includes a support frame in an inverted V shape with both side edges that can be opened and closed left and right, and a pair of left and right walking wheels distributed in an inverted V shape. The pair of walking wheels are respectively installed on the inner sides of the left and right side edges of the support frame to facilitate walking along the live line. An obstacle-crossing wheel is coaxially fixed to the inner side of each walking wheel, and the wheel diameter of the obstacle-crossing wheel is larger than that of the walking wheel.

[0009] Furthermore, an annular wheel groove is provided on the outer peripheral side of the walking wheel to facilitate adaptation to the live line; walking drive motors are installed on the outer sides of the left and right side edges of the support frame, and the output shafts of the walking drive motors are connected to the walking wheels on the same side.

[0010] Furthermore, the obstacle-crossing wheel comprises a circular fixing portion, and three climbing levers are evenly distributed on the circumference of the outer circumference of the fixing portion. The climbing levers extend radially along the fixing portion, and one end of the climbing levers away from the fixing portion is bent outward.

[0011] Furthermore, the supporting skeleton includes a pair of wheel frames which are arranged on the left and right and distributed in an inverted V shape, the top ends of the pair of wheel frames are hinged to each other, a laterally arranged tension spring is connected between the upper ends of the pair of wheel frames, and a pair of walking wheels are respectively installed on the inner sides of the pair of wheel frames; a pair of inverted L-shaped connecting rods are arranged on the left and right sides of the front end and the left and right sides of the rear ends of the fixed frame, the connecting rods are longitudinally arranged, the lower end of the vertical section of the connecting rod is hinged to the side of the fixed frame, and the horizontal section of the connecting rod is connected to the wheel frame on the same side.

[0012] Furthermore, the walking module also includes a pair of auxiliary wheels arranged on the left and right and distributed in a V-shape, the pair of auxiliary wheels are arranged on the side of a pair of walking wheels facing the radiation detection component, the outer peripheral side of the auxiliary wheels is used to contact the live circuit, the auxiliary wheels are mounted on a connecting plate, the connecting plate is hinged to the wheel frame located on the same side, and the hinge between the wheel frame and the connecting plate is provided with a torsion spring for driving the connecting plate to swing outward.

[0013] Furthermore, a lifting frame driven to be lifted and lowered by a lifting assembly is arranged on the inner side of the fixed frame, a rotating frame is hingedly connected to the lower end of the lifting frame, the rotating frame is driven to rotate in a vertical plane by the rotating assembly, and the radiation detection assembly is arranged on the rotating frame.

[0014] Furthermore, a vertical slot is provided at the front end of the lifting frame; the lifting assembly includes a lifting motor, a lifting gear and a lifting rack, and the lifting rack is vertically installed on the left side wall of the vertical slot; the lifting motor is arranged in the middle of the front end of the fixed frame, and the output end of the lifting motor is connected to the lifting gear, and the lifting gear is located inside the vertical slot and meshed with the lifting rack; the inner sides of the front and rear ends of the fixed frame are provided with a guide wheel group located below the lifting gear, and the guide wheel group includes two pairs of guide wheels distributed on the left and right sides of the lifting frame, and the guide wheels are in rolling cooperation with the lifting frame.

[0015] Furthermore, the radiation detection assembly includes a radiation machine vertically arranged on a rotating frame, and a flat-panel detector is arranged on the upper right side of the radiation machine. The flat-panel detector is driven by a telescopic assembly to move toward or away from the radiation machine, and the flat-panel detector is also driven by a flipping assembly to flip clockwise to be distributed perpendicular to the radiation machine.

[0016] Further, the rotating frame includes a rotating frame horizontally arranged inside the lower end of the lifting frame, and a mounting seat plate vertically fixed inside the right end of the rotating frame. The rotating frame is connected to the rotating assembly; the ray machine is vertically arranged at the lower end of the left side of the mounting seat plate. A telescopic push rod is vertically arranged in the middle of the right side of the mounting seat plate. The telescopic end of the telescopic push rod extends upward and is connected to a telescopic frame at the end. A longitudinally arranged flipping rotating shaft is installed on the telescopic frame; the flat panel detector is installed on a detector fixing frame, and the right end of the detector fixing frame is connected to the front and rear ends of the flipping rotating shaft; the flipping assembly includes a flipping motor arranged on the right side of the telescopic frame, and the flipping motor is connected to the flipping rotating shaft through a gear set.

[0017] Further, the rotating assembly includes a rotating motor, a driving gear, and a driven gear. The rotating motor is installed at the rear end of the lifting frame, and the output shaft of the rotating motor is connected to the driving gear; the driven gear is installed on the longitudinal rotating shaft at the rear end of the rotating frame, and the driven gear meshes with the driving gear.

[0018] Compared with the prior art, the utility model has the following effects: The utility model is reasonably designed. By using the ray detection assembly that can be lifted and rotated in the vertical plane, the whole device still maintains high flexibility in a complex wire environment, facilitating the collection of the conditions of multiple transmission lines, and improving the detection efficiency and accuracy; at the same time, the support skeleton of the walking module can be opened and closed left and right, which can ensure that the device can smoothly transition under the wire distance conditions of different voltage levels and split numbers of the transmission line, deftly solve the problem of changing lines with different wire distances, and improve the obstacle crossing efficiency of the device by setting obstacle crossing wheels. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the three-dimensional structure schematic diagram of the embodiment of the utility model Figure 1 ;

[0020] Figure 2 is the three-dimensional structure schematic diagram of the embodiment of the utility model Figure 2 ;

[0021] Figure 3 is the front view structure schematic diagram of the embodiment of the utility model;

[0022] Figure 4 is the top view structure schematic diagram of the embodiment of the utility model;

[0023] Figure 5 is the structure schematic diagram of the embodiment of the utility model with the walking module omitted Figure 1 ;

[0024] Figure 6 is the structure schematic diagram of the embodiment of the utility model with the walking module omitted Figure 2 ;

[0025] Figure 7 is a three - dimensional structural schematic diagram of the lifting component in the embodiment of the present utility model;

[0026] Figure 8 is Figure 7 an enlarged schematic diagram at position A in

[0027] Figure 9 is a three - dimensional structural schematic of the ray detection component in the embodiment of the present utility model Figure 1 ;

[0028] Figure 10 is a three - dimensional structural schematic of the ray detection component in the embodiment of the present utility model Figure 2 ;

[0029] Figure 11 is a top - view schematic diagram of the ray detection component in the embodiment of the present utility model;

[0030] Figure 12 is a three - dimensional structural schematic of the moving component in the embodiment of the present utility model Figure 1 ;

[0031] Figure 13 is a front - view structural schematic diagram of the moving component in the embodiment of the present utility model;

[0032] Figure 14 is a partial structural schematic of the walking module in the embodiment of the present utility model Figure 1 ;

[0033] Figure 15 is a partial structural schematic of the walking module in the embodiment of the present utility model Figure 2 ;

[0034] Figure 16 is a schematic of the motion state of the ray detection component in the embodiment of the present utility model Figure 1 ;

[0035] Figure 17 is a schematic of the motion state of the ray detection component in the embodiment of the present utility model Figure 2 ;

[0036] Figure 18 is a schematic of the motion state of the ray detection component in the embodiment of the present utility model Figure 3 .

[0037] In the figure:

[0038] 1 - 8 - split conductor; 2 - lifting frame; 3 - rotating frame; 4 - ray detection component; 5 - fixed frame; 6 - walking module; 7 - vertical notch; 8 - lifting motor; 9 - lifting gear; 10 - lifting rack; 11 - guide wheel set; 12 - ray machine; 13 - flat panel detector; 14 - rotating frame; 15 - mounting seat plate; 16 - longitudinal rotating shaft; 17 - rotating motor; 18 - driving gear; 19 - driven gear; 20 - telescopic push rod; 21 - telescopic frame; 22 - flipping rotating shaft; 23 - detector fixing frame; 24 - flipping motor; 25 - gear set; 26 - support skeleton; 27 - walking wheel; 28 - annular wheel groove; 29 - walking driving motor; 30 - obstacle - crossing wheel; 31 - fixing part; 32 - over - climbing lever; 33 - wheel frame; 34 - tension spring; 35 - connecting rod; 36 - fixed end; 37 - auxiliary wheel; 38 - connecting plate. Detailed implementation mode

[0039] The following further elaborates on the present utility model in conjunction with the attached drawings and specific implementation modes.

[0040] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the attached drawings. These are only for the convenience of describing the present utility model and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0041] As Figures 1 to 18 shown, a non - destructive detection device for the crimping quality of energized lines of the present utility model aims to improve the obstacle - crossing efficiency, cross different obstacles on energized lines, maintain high flexibility in monitoring complex line environments, improve the imaging effect and capture the best imaging perspective to meet the detection requirements. Specifically, it includes a fixed frame 5 with walking modules 6 respectively arranged at the front and rear ends. The fixed frame 5 is provided with a ray detection component 4 that can be lifted and rotated in a vertical plane. By combining lifting and rotation in the vertical plane, the position of the ray detection component is changed to obtain the best acquisition perspective, so that the whole device still maintains high flexibility in a complex line environment, facilitating the acquisition of the conditions of multi - conductor transmission lines (such as 8 - split conductors), and improving the efficiency and accuracy of detection. The walking module 6 includes a support skeleton 26 with an overall inverted V - shape and the two side edges can be opened and closed left and right, and a pair of walking wheels 27 arranged left and right and distributed in an inverted V - shape. The pair of walking wheels 27 are respectively installed on the inner sides of the left and right side edges of the support skeleton 26 to facilitate walking along the energized line. An obstacle - crossing wheel 30 is coaxially fixed to the inner side of each walking wheel 27. The wheel diameter of the obstacle - crossing wheel 30 is larger than that of the walking wheel 27, and the obstacle - crossing wheel and the walking wheel are coaxially fixed to achieve synchronous rotation.

[0042] In this embodiment, the outer peripheral side of the walking wheel 27 is provided with an annular wheel groove 28 to facilitate adaptation to the live line; the outer sides of the left and right sides of the supporting frame 26 are installed with walking drive motors 29, and the output shaft of the walking drive motor 29 is connected to the walking wheel 27 located on the same side. The walking drive motor drives the walking wheel to rotate to enable the entire device to move along the live line.

[0043] In this embodiment, Figure 13 , 14 As shown, the obstacle-crossing wheel 30 includes a circular fixed portion 31, and three crossing levers 32 are evenly distributed on the outer circumference of the fixed portion 31. The crossing levers 32 extend radially along the fixed portion 31, and the crossing levers 32 have a bent section that is bent outward at one end away from the fixed portion. During operation, when the obstacle on the live line is small (such as a shock-absorbing hammer), the walking wheel 27 directly rolls over the obstacle during the movement of the entire device; if the obstacle is large, since the wheel diameter of the obstacle-crossing wheel 30 is larger than the wheel diameter of the walking wheel 27, the obstacle-crossing wheel 30 first contacts the obstacle, and the entire walking wheel 27 is propped up and separated from the live line, so that the walking wheel rolls over the obstacle and the walking module crosses the obstacle. By adding an obstacle-crossing wheel similar to a three-blade rotor, the efficiency of obstacle-crossing can be effectively improved, the walking wheel can be prevented from slipping, and the device can quickly cross obstacles on the live line to achieve the detection task.

[0044] In this embodiment, Figure 11 , 12 As shown, the support frame 26 includes a pair of wheel frames 33 arranged on the left and right and distributed in an inverted V shape, the top ends of the pair of wheel frames 33 are hinged, a transversely arranged tension spring 34 is connected between the upper ends of the pair of wheel frames 33, and a pair of walking wheels 27 are respectively installed on the inner sides of the pair of wheel frames 33. Since the upper ends of the pair of wheel frames are hinged, the entire support frame can be opened and closed left and right, and the opening angle of the pair of wheel frames can be adjusted as needed during use to adapt to different line distances, thereby improving the adaptability and flexibility of line patrol walking.

[0045] In this embodiment, a pair of inverted L-shaped connecting rods 35 symmetrically distributed on the left and right sides of the front end and the left and right sides of the rear ends of the fixed frame 5 are provided. The connecting rods 35 are longitudinally arranged, and the lower end of the vertical section of the connecting rod 35 is hinged to the side of the fixed frame 5. The rotation axis of the connecting rod is longitudinally arranged, and the horizontal section of the connecting rod 35 is connected to the fixed end 36 on the wheel frame 33 on the same side, that is, the entire walking module is connected to the fixed frame through the connecting rod. Since the connecting rod is hinged to the fixed frame, the walking wheel can be swung when in use to cooperate with the opening and closing of the supporting frame.

[0046] In this embodiment, Figure 13 ,14 As shown, in order to improve the support effect during walking, each walking module 6 further includes a pair of auxiliary wheels 37 that are arranged left and right and distributed in a V shape. The positions of the pair of auxiliary wheels 37 correspond to those of the pair of walking wheels 27. The pair of auxiliary wheels 37 are arranged on the side of the pair of walking wheels 27 facing the lifting frame 2. The outer peripheral side of the auxiliary wheel 37 is used to contact the energized line. The auxiliary wheel 37 is installed on a connecting plate 38. The connecting plate 38 is hinged to the wheel frame 33 on the same side. A torsion spring for driving the connecting plate to swing outward is provided at the hinge of the wheel frame 33 and the connecting plate 38, so that the auxiliary wheel can better press on the energized line.

[0047] In this embodiment, a lifting frame 2 driven by a lifting component is arranged inside the fixed frame 5. The lifting frame 2 is in an inverted U shape and is vertically arranged. The lower end of the lifting frame 2 is hinged with a rotating frame 3. The rotating frame 3 is driven by a rotating component to rotate in a vertical plane. The ray detection component 4 is arranged on the rotating frame 3.

[0048] In this embodiment, a vertical notch 7 is provided at the front end of the lifting frame 2. The lifting component includes a lifting motor 8, a lifting gear 9, and a lifting rack 10. The lifting rack 10 is vertically installed on the left side wall of the vertical notch 7. The lifting motor 8 is arranged in the middle of the front convex platform of the fixed frame 5. The output end of the lifting motor 8 is connected to the lifting gear 9. The lifting gear 9 is located inside the vertical notch 7 and meshes with the lifting rack 10. During operation, the lifting motor 8 drives the lifting gear 9 to rotate. During the rotation of the lifting gear 9, the lifting rack 10 is driven to move vertically, and the lifting rack 10 drives the entire lifting frame 2 to move. By controlling the forward and reverse rotation of the lifting motor 8, the lifting frame 2 can be raised or lowered.

[0049] In this embodiment, in order to guide the lifting movement of the lifting frame and improve the smoothness of lifting, guide wheel sets 11 are provided in the middle of the inner sides of the front and rear ends of the fixed frame 5. The guide wheel sets 11 are located below the lifting gear 9. The guide wheel sets 11 include two pairs of guide wheels distributed on the left and right sides of the lifting frame 2. Each pair of guide wheels is distributed up and down. The guide wheels are in rolling cooperation with the lifting frame. During the lifting process of the lifting frame, the guide wheels rotate and guide the lifting frame.

[0050] In this embodiment, as Figure 5 、 6, as shown in FIGS. 9 and 10, the ray detection assembly 4 includes an X-ray machine 12 vertically arranged on the rotating frame 3. A flat panel detector 13 is arranged on the upper right side of the upper end of the X-ray machine 12. The flat panel detector 13 is driven by a telescopic assembly to move towards or away from the X-ray machine 12, and the flat panel detector 13 is also driven by a flipping assembly to rotate clockwise until it is perpendicularly distributed to the X-ray machine 12. During operation, the rotating assembly drives the X-ray machine 12 and the flat panel detector 13 to rotate by a certain angle in the vertical plane through the rotating frame 3, such as Figure 16 shown; then the telescopic assembly drives the flat panel detector 13 to move away from the X-ray machine, separating the flat panel detector 13 from the X-ray machine 12, such as Figure 17 shown; finally, the flipping assembly drives the flat panel detector 13 to rotate clockwise by 90 degrees, so that the flat panel detector 13 is perpendicularly distributed to the X-ray machine 12. The energized circuit to be detected is located between the X-ray machine 12 and the flat panel detector 13, such as Figure 18 shown, and the X-ray machine and the flat panel detector perform ray detection on the energized circuit. It should be noted that the X-ray machine used is an existing X-ray machine. The flat panel detector can be telescoped and rotated, so that the positions of the flat panel detector and the X-ray machine fit the circuit, realizing high-efficiency and high-precision imaging detection.

[0051] In this embodiment, as Figure 5 , 6 shown, the rotating frame 3 includes a rotating frame 14 horizontally arranged inside the lower end of the lifting frame 2, and a mounting seat plate 15 vertically fixed inside the right end of the rotating frame 14. The ray detection assembly 4 is arranged on the mounting seat plate 15; the rotating frame 13 is in a rectangular frame structure. Longitudinal rotating shafts 16 are respectively connected to the middle parts of the front and rear ends of the rotating frame 14. The longitudinal rotating shafts 16 are rotationally matched with the lifting frame 2, and the rotating frame 14 is connected to the rotating assembly. Specifically: the rotating assembly includes a rotating motor 17, a driving gear 18 and a driven gear 19. The rotating motor 17 is installed at the lower part of the rear end of the lifting frame 2, and the output shaft of the rotating motor 17 is connected with the driving gear 18; the driven gear 19 is installed on the longitudinal rotating shaft 16 at the rear end of the rotating frame 14, and the driven gear 19 meshes with the driving gear 18. During operation, the rotating motor drives the longitudinal rotating shaft to rotate through the driving gear and the driven gear, and the longitudinal rotating shaft drives the entire rotating frame to rotate.

[0052] In this embodiment, as Figure 9 , 10As shown, the ray machine 12 is vertically arranged at the lower end of the left side surface of the mounting base plate 15. A telescopic push rod 20 is vertically arranged in the middle of the right side surface of the mounting base plate 15. The telescopic push rod is an electric push rod. The telescopic end of the telescopic push rod 20 extends upward and its end is connected to an inverted U-shaped telescopic frame 21. The two side edges of the telescopic frame 21 are slidably matched with the mounting base plate 18. A longitudinally arranged flipping rotating shaft 22 is installed on the telescopic frame 21. The flat panel detector 12 is installed on a horizontal U-shaped detector fixing frame 23. The right end of the detector fixing frame 23 is connected to the front and rear ends of the flipping rotating shaft 22. As Figure 11 shown, the flipping assembly includes a flipping motor 24 arranged on the right side surface of the telescopic frame 21. The flipping motor 24 is connected to the flipping rotating shaft 22 through a gear set 25. The flipping motor 24 drives the flipping rotating shaft 22 to rotate through the gear set 25. The flipping rotating shaft 22 drives the flat panel detector 13 to rotate through the detector fixing frame 23. Since the ray detection assembly cannot detect the transmission lines at multiple positions only by the lifting of the lifting frame and the rotation of the rotating frame, and cannot ensure the detection of the transmission lines at a relatively long distance and a relatively short distance, the function of the telescopic flat panel detector is to solve this problem. The setting of the telescopic push rod can not only coordinate with the lifting of the lifting frame and the rotation of the rotating frame to realize the acquisition of the conditions of the transmission lines at different positions, but also can be telescoped according to the distance between the measured transmission line and the main structure, so that the positions of the flat panel detector and the ray machine are in line with the transmission line, realizing high-efficiency and high-precision imaging detection.

[0053] In the specific implementation process, taking the detection of 8-split conductors as an example: When the device crosses an obstacle, first, the lifting motor 8 rotates. The lifting motor 8 drives the lifting frame 2 to lift through the lifting gear 9 and the lifting rack 10. Then, the traveling wheels 27 directly roll over the obstacle or cross the obstacle with the help of the obstacle-crossing wheels 30. When the device detects the line, the rotating motor 17 drives the rotating frame 3 to rotate, giving a certain inclination angle to the ray machine 12 and the flat panel detector 13. Then, the telescopic push rod 20 drives the flat panel detector 13 to move away from the ray machine, separating the flat panel detector 13 from the ray machine 12, facilitating the flat panel detector 13 to have enough distance to expand and be able to fit the target transmission line. Finally, the flipping motor 24 drives the flat panel detector 13 to rotate clockwise by 90 degrees, making the ray machine 12 perpendicular to the flat panel detector 13, and detecting the target transmission line through the ray machine. It should be noted that during the detection process, through the cooperation of the lifting of the lifting frame, the rotation of the rotating frame, and the telescoping of the telescopic push rod, the detection angle of the target transmission line can be adjusted.

[0054] The advantages of the present utility model are as follows:

[0055] (1) Through the cooperation of the lifting of the lifting frame, the rotation of the rotating frame, and the telescoping of the telescoping push rod, the flat panel detector can be flexibly opened and closed in an environment with a complex wire structure, enabling it to maintain a high level of flexibility, and being able to cooperate stably with the target acquisition position device to ensure the safety and continuity of detection;

[0056] (2) By adding obstacle-crossing wheels to the walking wheels, the efficiency of obstacle avoidance can be improved, preventing the walking wheels from slipping on the energized line, enabling the device to quickly and flexibly cross different obstacles on the energized line and complete the detection task;

[0057] (3) The support skeleton of the walking module adopts a detachable design, which can ensure that the device can smoothly transition under the wire spacing conditions of different voltage levels and split numbers of the transmission line, and cleverly solves the problem of switching between lines with different wire spacings;

[0058] (4) The design of the lifting structure can keep the device avoiding obstacles below during the obstacle-crossing process, and at the same time cooperate with the imaging structure to complete the work during the detection process to ensure the flexibility of the device.

[0059] If the present utility model discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connected by bolts or screws), or it can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integral structure (for example, manufactured by an integral casting process) (except when it is obviously impossible to adopt the integral forming process).

[0060] In addition, the terms used to represent positional relationships or shapes in any of the technical solutions disclosed in the present utility model, unless otherwise stated, include states or shapes that are approximate, similar, or close to them.

[0061] Any component provided by the present utility model can either be assembled from multiple separate components or be a single component manufactured by an integral forming process.

[0062] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them; although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the specific implementation manners of the present utility model or perform equivalent replacements on some technical features; without departing from the spirit of the technical solutions of the present utility model, they should all be covered within the scope of the technical solutions claimed by the present utility model.

Claims

1. A non-destructive detection device for the crimping quality of a live line, characterized in that: It comprises a fixed frame with walking modules at the front and rear ends respectively, the fixed frame is provided with a radiation detection component which can be raised and lowered and rotated in a vertical plane; the walking module comprises an inverted V-shaped supporting frame with two sides which can be opened and closed to the left and right, a pair of walking wheels which are arranged on the left and right and distributed in an inverted V shape, the pair of walking wheels are respectively installed on the inner sides of the left and right sides of the supporting frame and are convenient for walking along the live lines, an obstacle-crossing wheel is coaxially fixed to the inner side of each walking wheel, and the wheel diameter of the obstacle-crossing wheel is larger than the wheel diameter of the walking wheel.

2. The non-destructive detection device for the crimping quality of energized lines according to claim 1, wherein: The outer peripheral side of the travel wheel is provided with an annular wheel groove to facilitate adaptation to the live circuit; the outer sides of the left and right sides of the support frame are both installed with travel drive motors, and the output shaft of the travel drive motor is connected to the travel wheel located on the same side.

3. The non-destructive detection device for the crimping quality of a live line according to claim 1, characterized in that: The obstacle-crossing wheel comprises a circular fixing portion, and three crossing levers are evenly distributed on the outer circumference of the fixing portion. The crossing levers extend radially along the fixing portion, and one end of the crossing levers away from the fixing portion is bent outward.

4. The non-destructive detection device for the crimping quality of a live line according to claim 1, wherein: The supporting skeleton includes a pair of wheel frames which are arranged on the left and right and are distributed in an inverted V shape. The top ends of the pair of wheel frames are hinged to each other, and a laterally arranged tension spring is connected between the upper ends of the pair of wheel frames. A pair of walking wheels are respectively installed on the inner sides of the pair of wheel frames; a pair of inverted L-shaped connecting rods are arranged on the left and right sides of the front end and the left and right sides of the rear ends of the fixed frame. The connecting rods are arranged longitudinally, and the lower end of the vertical section of the connecting rod is hinged to the side of the fixed frame, and the horizontal section of the connecting rod is connected to the wheel frame on the same side.

5. The non-destructive detection device for the crimping quality of a live line according to claim 1, wherein: The walking module also includes a pair of auxiliary wheels arranged on the left and right and distributed in a V shape. The pair of auxiliary wheels are arranged on the side of a pair of walking wheels facing the radiation detection component. The outer peripheral side of the auxiliary wheels is used to contact the live circuit. The auxiliary wheels are mounted on a connecting plate, and the connecting plate is hinged to the wheel frame located on the same side. The hinge between the wheel frame and the connecting plate is provided with a torsion spring for driving the connecting plate to swing outward.

6. The non-destructive detection device for the crimping quality of energized lines according to claim 1, wherein: A lifting frame driven to be lifted and lowered by a lifting assembly is arranged inside the fixed frame, a rotating frame is hinged at the lower end of the lifting frame, the rotating frame is driven to rotate in a vertical plane by the rotating assembly, and the radiation detection assembly is arranged on the rotating frame.

7. An electrically charged line crimping quality non-destructive detection device according to claim 6, characterized in that: A vertical slot is provided at the front end of the lifting frame; the lifting assembly includes a lifting motor, a lifting gear and a lifting rack, and the lifting rack is vertically installed on the left side wall of the vertical slot; the lifting motor is arranged in the middle of the front end of the fixed frame, and the output end of the lifting motor is connected to the lifting gear, and the lifting gear is located inside the vertical slot and meshed with the lifting rack; the inner sides of the front and rear ends of the fixed frame are provided with guide wheel groups located below the lifting gear, and the guide wheel group includes two pairs of guide wheels distributed on the left and right sides of the lifting frame, and the guide wheels are in rolling cooperation with the lifting frame.

8. The non-destructive detection device for the crimping quality of a live line according to claim 6, characterized in that: The radiation detection assembly includes a radiation machine vertically arranged on a rotating frame, a flat-panel detector is arranged on the upper right side of the radiation machine, the flat-panel detector is driven by a telescopic assembly to move toward or away from the radiation machine, and the flat-panel detector is also driven by a flip assembly to flip clockwise to be distributed perpendicular to the radiation machine.

9. The non-destructive detection device for the crimping quality of a live line according to claim 8, characterized in that: The rotating frame includes a rotating frame horizontally arranged inside the lower end of the lifting frame and a mounting seat plate vertically fixed inside the right end of the rotating frame. The rotating frame is connected to the rotating assembly. The ray machine is vertically arranged at the lower end of the left side of the mounting seat plate. A telescopic push rod is vertically arranged in the middle of the right side of the mounting seat plate. The telescopic end of the telescopic push rod extends upward and is connected to a telescopic frame at the end. A longitudinally arranged flipping rotating shaft is installed on the telescopic frame. The flat panel detector is installed on a detector fixing frame. The right end of the detector fixing frame is connected to the front and rear ends of the flipping rotating shaft. The flipping assembly includes a flipping motor arranged on the right side of the telescopic frame. The flipping motor is connected to the flipping rotating shaft through a gear set.

10. A non-destructive detection device for the crimping quality of a live line, according to claim 9, characterized in that: The rotating assembly includes a rotating motor, a driving gear, and a driven gear. The rotating motor is installed at the rear end of the lifting frame, and the output shaft of the rotating motor is connected to the driving gear. The driven gear is installed on the longitudinal rotating shaft at the rear end of the rotating frame, and the driven gear meshes with the driving gear.

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