X-ray Detection Device and Method for Strain Clamps Used in Multi-Split Lines

Abstract

The present application discloses an X-ray detection device for a strain clamp of a multi-split line, which is used to clamp on a multi-split transmission line for non-destructive detection of the strain clamp. It includes a tooling for installing an X-ray machine and a detector. The tooling is provided with a plurality of clamping mechanisms on the side wall that can be telescoped to clamp the multi-split transmission line; the X-ray machine is rotatably arranged in the tooling, and a gear ring is also rotatably arranged on the tooling. A telescopic rod is fixedly arranged on the gear ring, and a detector that is rotatably arranged at the end of the telescopic rod and is deflected to align with the X-ray machine is also provided. The detection device provided by the present invention can be clamped on the multi-split transmission line, and can perform non-destructive detection on any transmission line in sequence through 360° deflection, solving the problem that it is difficult for traditional X-ray detection devices to efficiently photograph the strain clamps of multi-split lines, and there is no need for personnel to intervene, eliminating the safety hazards existing for workers to climb up and down the tower.

Description

Technical Field

[0001] The present invention relates to the technical field of non-destructive testing of strain clamps for high-voltage transmission lines, and particularly to the field of X-ray detection of strain clamps for multi-split lines. Background Art

[0002] A strain clamp (tension clamp, strain clamp, dead-end clamp) refers to a fitting used to fix a conductor to bear the conductor tension and hang the conductor on a strain string group or a tower.

[0003] The connection between the strain clamp and the transmission line is mainly achieved through physical crimping. The defects that are likely to occur in this way include local stress, voids or other crimping defects caused by the crimping of the fitting, internal defects caused by the material of the strain clamp itself, and defects caused by metal fatigue due to long-term bearing of extremely high tension. No matter what kind of defect, it may lead to high-altitude transmission line faults, such as local severe ionization, loosening between the strain clamp and the transmission line resulting in power outage, etc. Therefore, the state detection of the strain clamp is related to the stability of the power transmission network and has very important significance for the entire power grid.

[0004] Although there are various existing detection technologies for strain clamps, X-ray detection is still the mainstream detection method. There are mainly two traditional X-ray detection methods: one is to carry the equipment to the detection point for shooting by manually climbing the tower. This method is time-consuming and laborious, and the workload is huge for multi-split lines, and there are great safety hazards in the live working environment. The other method is to hang the detection equipment on the line to be detected by using a drone or a manned helicopter for shooting. This method requires the detection equipment to be hoisted onto the line to be photographed in sequence. It is relatively easy to operate when facing a single conductor or a double-split line, but when facing a multi-split line, it is difficult to hang the detection equipment on all lines due to the mutual occlusion of the lines and the occlusion of the grading rings. Therefore, there is an urgent need for an X-ray detection device that is safe, convenient and applicable to multi-split lines. Summary of the Invention

[0005] In order to solve the problem that it is difficult for traditional X-ray detection devices to efficiently photograph strain clamps for multi-split lines, the present application provides a strain clamp X-ray detection device and method for multi-split lines.

[0006] The detection device provided by the present invention can achieve fixed installation and detection without relying on personnel climbing the tower, eliminating the time spent by the staff climbing the tower and the safety hazards of the staff working on the tower, and only needs to use a drone or a manned helicopter to hang and fix the position once to achieve efficient detection of multi-split lines.

[0007] To achieve this purpose, the technical solution adopted in the present application is:

[0008] The X-ray detection device for strain clamps used in multi-split lines is used to clamp on multi-split transmission lines for non-destructive detection of strain clamps. It includes a tooling for installing an X-ray machine and a detector. The tooling is provided with a plurality of clamping mechanisms on the side wall that can be telescoped to clamp multi-split transmission lines. The X-ray machine is rotatably arranged in the tooling. A gear ring is also rotatably arranged on the tooling. A telescopic rod is fixedly arranged on the gear ring. And a detector that is rotatably arranged at the end of the telescopic rod and is aligned with the X-ray machine through deflection is provided.

[0009] In order to facilitate the detection of each conductor in the multi-split line at a fixed position under the premise of avoiding manual intervention during the detection process, preferably, the tooling is an integrally formed columnar structure. There is a cavity in the tooling for accommodating the X-ray machine. At least one bearing for rotatably connecting the X-ray machine and the tooling is arranged on the inner wall of the cavity. A first driver for driving the X-ray machine to rotate relative to the tooling by connecting with the outer shell of the X-ray machine is installed at the end of the tooling.

[0010] Preferably, the gear ring and the X-ray machine are located on the same rotation axis. A third driver that is drivingly connected to the gear ring is fixedly installed on the side wall of the tooling.

[0011] In order to facilitate aligning the X-ray machine and the detector at different angles, preferably, a second driver for driving the detector to deflect is fixedly installed at a position on the telescopic rod close to the detector. The driving shaft of the second driver is fixedly connected with a worm. The worm is drivingly connected with a turbine disc fixedly connected with the detector. The second driver drives the detector to deflect clockwise / counterclockwise to align with the central ray of the X-ray machine by driving the worm to rotate forward / backward.

[0012] In order to facilitate the telescoping of the clamping mechanism to change the working state of the detection device and reduce the occupied space volume in the non-working state, preferably, the clamping mechanism includes a base installed on the side wall of the tooling. An expansion and contraction frame formed by successively hinging a plurality of connecting rods is installed on the base. An opening ring for clamping multi-split transmission lines is connected to the free end of the expansion and contraction frame. And a pneumatic expansion and contraction tube with both ends respectively connected to the base and the opening ring is provided.

[0013] A pressurization mechanism for air pressurization and pressure relief is installed on the side wall of the tooling. The pressurization mechanism is respectively connected to the pneumatic telescopic tube and the telescopic rod through multiple synchronous hoses. Solenoid valves for controlling the on-off of gas are arranged on both the pneumatic telescopic tube and the telescopic rod. Any solenoid valve is electrically connected to a control box arranged on the side wall of the tooling. The control box includes a control unit for controlling the first driver, the second driver, the third driver, the pressurization mechanism, the detector, the X-ray machine, and a camera arranged on the S-ray machine beside the emission of the central ray for obtaining the detector image, and a communication unit for receiving ground or background control signals, and a lithium battery arranged on the tooling or electrically connected to the control box.

[0014] Preferably, in order to more conveniently and quickly clamp the transmission line, a deflection mechanism for adjusting the angle of the clamping mechanism is further included. One end of the base is hinged to the tooling, and the other end is drivingly connected to the deflection mechanism. The deflection mechanism includes a fourth driver fixedly installed in the tooling. The output shaft of the fourth driver is coaxially connected to a lead screw. A deflection shaft sleeve is threadedly connected to the lead screw. The deflection shaft sleeve is rotatably connected to the base; a positioning camera electrically connected to the control box and used for capturing the image of the clamping mechanism is installed on the surface of the base.

[0015] The present application also provides an X-ray detection method for strain clamps of multi-split lines, which is implemented by using the above-mentioned X-ray detection device for strain clamps of multi-split lines, and specifically includes the following steps:

[0016] Step S100: Use a drone or a manned helicopter to suspend the X-ray detection device for strain clamps to the central position of the multi-split transmission line by means of a looped insulating rope, and then slowly move it so that the X-ray detection device for strain clamps hovers near the transmission line close to the strain clamp.

[0017] Step S200: Establish a communication connection between the ground, the helicopter or the background main control machine and the control box, and send a control command to the control box to drive the clamping mechanism to extend until the opening ring is clamped to the first transmission line; extend the clamping mechanism on the opposite side of the first transmission line in the same way to clamp the second transmission line until more than three clamped transmission lines or each clamping mechanism forms a clamping relationship with the transmission line at the corresponding position, and complete the positioning and installation of the equipment; as one of the more efficient positioning and clamping methods, this step also includes a visual alignment step, specifically including the relative position of the transmission line and the clamping mechanism transmitted back by the positioning camera, and adjusting the telescopic and deflection of the clamping mechanism and the deflection of the deflection mechanism so that the opening ring is aligned and clamped to the first transmission line.

[0018] Step S300: Send a driving signal to the first driving device. At the same time, align the X-ray machine with the nearest first power transmission line through the real-time image transmitted back by the camera and then stop. Then, send a driving signal to the third driver. Drive the detector to rotate into the camera's field of view by driving the ring gear through the third driver. Then, extend the telescopic rod so that the detector is located outside the first power transmission line. Drive the detector to deflect through the second driver, and at the same time, finely adjust the angle of the ring gear so that the current detector is perpendicular to the X-ray machine.

[0019] Step S400: Send an instruction to the X-ray machine through the communication unit to start shooting, and obtain the ray image of the current first power transmission line and the strain clamp.

[0020] Step S500: After shooting, recover the detector to the initial storage state by using the control opposite to that of the telescopic rod and the second driver in step S300.

[0021] Step S600: Send driving instructions to the first driver and the third driver at the same time, so that the X-ray machine and the detector rotate in the same direction by the same angle a, where a = 360° / N, and N is the number of split lines.

[0022] Step S700: Repeat steps S300 - S500 until the X-ray images of the strain clamps of the last power transmission line are obtained.

[0023] Step S800: Lift the strain clamp X-ray detection device away from the work site by using a drone or a manned helicopter.

[0024] Beneficial effects:

[0025] The detection device provided by the present invention can be clamped on a multi-split power transmission line, and can perform sequential non-destructive detection on any power transmission line through 360° deflection. Without personnel intervention, it eliminates the safety hazards of workers climbing up and down the tower, and solves the problem that traditional X-ray detection devices are difficult to efficiently shoot the strain clamps of multi-split lines.

[0026] Both the X-ray machine and the detector of the present invention can rotate, and are not limited by the number of splits of the multi-split line. The stay and detection at any angle can be realized by rotating the deflection angles of the X-ray machine and the detector, so as to realize blind area-free detection and meet the non-destructive detection of existing three-split, four-split, six-split and eight-split lines.

[0027] Compared with the prior art, the human cost input of the present invention is smaller. Only the detection device needs to be hoisted. After the hoisting is completed, the control of the detection can be carried out by the drone operator or the hoisting operator in the helicopter, avoiding the input and coordination of the existing operators on the tower and under the tower, and greatly saving the detection labor cost. Description of the drawings

[0028] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0029] Figure 1 It is an axonometric schematic diagram of the structure of the detection device of the present invention.

[0030] Figure 2 is Figure 1 Another visual axonometric schematic diagram of

[0031] Figure 3 It is a schematic diagram of the X-ray machine structure.

[0032] Figure 4 It is the working principle diagram of the second driver.

[0033] Figure 5 It is the detection state schematic diagram of the present invention.

[0034] Figure 6 It is another schematic diagram of the detection state of the present invention.

[0035] In the figure: 1 - tooling; 11 - first driver; 12 - pressurizing mechanism; 13 - telescopic rod; 14 - second driver; 15 - detector; 16 - X-ray machine; 161 - ray emission port; 17 - bearing; 18 - gear ring; 19 - third driver; 2 - clamping mechanism; 21 - base; 22 - telescopic frame; 23 - pneumatic telescopic tube; 24 - opening ring. Detailed implementation manners

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application to be protected, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0038] It should be noted that like reference numerals and letters refer to like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0039] In the description of the present application, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present application. In addition, in the description of the present application, if terms such as "first", "second", etc. are used only for distinguishing descriptions, they cannot be understood as indicating or implying relative importance.

[0040] In addition, in the description of the present application, if terms such as "horizontal" and "vertical" are used, it does not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0041] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "connected" are used, they 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0042] Embodiment 1:

[0043] Combined with the attached Figures 1 - 3 As shown in the figure, this embodiment provides an X-ray detection device for a strain clamp of multi-split lines, which is used to clamp on the multi-split transmission line for non-destructive detection of the strain clamp. It includes a tooling 1 for installing an X-ray machine 16 and a detector 15. The tooling 1 is provided with a plurality of clamping mechanisms 2 on the side wall that can be telescoped to clamp the multi-split transmission line; the X-ray machine 16 is rotatably arranged in the tooling 1, and a gear ring 18 is also rotatably arranged on the tooling 1. A telescopic rod 13 is fixedly arranged on the gear ring 18, and a detector 15 that rotates at the end of the telescopic rod 13 and is deflected to align with the X-ray machine 16 is also rotatably arranged.

[0044] Working principle and function description:

[0045] The tooling 1 serves as the support main structure of the detection device and is used to install the X-ray machine 16 and the detector 15. The X-ray machine 16 is rotatably installed in the tooling 1 and rotates according to the orientation of the power transmission line to be detected, so as to emit X-rays towards the object to be detected, enabling the joint part of the power transmission line to be detected and the strain clamp to form an X-ray film image on the detector 15, thereby being used for subsequent defect analysis to achieve the purpose of detection. Similarly, considering the structural compactness and the working relative position limitation between the detector 15 and the X-ray machine 16, fixing the detector 15 in the manner shown in Figure 1 and Figure 2 can achieve a balance between the two aspects.

[0046] In this embodiment, the X-ray film image data obtained by shooting can be temporarily stored in the X-ray machine 16, or the X-ray film image data can be transmitted to the control background in real time using existing wireless communication technologies. The part related to data wireless transmission belongs to very mature existing technologies. For example, short-distance Bluetooth, WiFi; long-distance 4G, 5G, radio frequency and other transmission methods. This communication part is not the invention point and technical improvement point of this case, so it will not be elaborated here and will not be listed one by one.

[0047] Embodiment 2:

[0048] In order to further optimize the structure, on the basis of Embodiment 1, this embodiment further combines the attached drawings of the specification Figures 1 - 4 As shown, in order to facilitate detection at different angles at a fixed position during the detection process, the tooling 1 is an integrally formed columnar structure. The tooling 1 has a cavity for accommodating the X-ray machine 16. At least one bearing 17 for rotatably connecting the X-ray machine 16 and the tooling 1 is provided on the inner wall of the cavity. A first driver 11 for driving the X-ray machine 16 to rotate relative to the tooling 1 is installed at the end of the tooling 1 and is connected to the outer shell of the X-ray machine 16.

[0049] In this embodiment, the gear ring 18 and the X-ray machine 16 are located on the same rotation axis, and a third driver 19 drivingly connected to the gear ring 18 is fixedly installed on the side wall of the tooling 1.

[0050] In order to facilitate aligning the X-ray machine 16 and the detector at different angles, a second driver 14 for driving the detector 15 to deflect is fixedly installed at a position on the telescopic rod 13 close to the detector 15. The driving shaft of the second driver 14 is fixedly connected to a worm, and the worm is drivingly connected to a turbine disk fixedly connected to the detector 15. The second driver 14 drives the detector 15 to deflect clockwise / counterclockwise by driving the worm to rotate forward / backward to align with the central ray of the X-ray machine 16, as shown in Figure 3 shown.

[0051] To facilitate the telescopic movement of the clamping mechanism 2 to change the working state of the detection device and reduce the space volume occupied in the non-working state, the clamping mechanism 2 includes a base 21 installed on the side wall of the tooling 1. On the base 21, there is a telescopic frame 22 formed by hinging multiple connecting rods end to end. The free end of the telescopic frame 22 is connected with an opening ring 24 for clamping multi-split transmission lines, and a pneumatic telescopic tube 23 with two ends respectively connected to the base 21 and the opening ring 24;

[0052] On the side wall of the tooling 1, there is a pressurization mechanism 12 for air pressurization and pressure relief. The pressurization mechanism 12 is respectively connected to the pneumatic telescopic tube 23 and the telescopic rod 13 through multiple synchronous hoses. Solenoid valves for controlling the on / off of gas are provided on both the pneumatic telescopic tube 23 and the telescopic rod 13. Any solenoid valve is electrically connected to a control box installed on the side wall of the tooling 1. The control box includes a control unit for controlling the first driver 11, the second driver 14, the third driver 19, the pressurization mechanism 12, the detector 15, the X-ray machine 16, and a camera located beside the central ray emission of the S-ray machine 16 for obtaining the image of the detector 15, as well as a communication unit for receiving ground or background control signals, and a lithium battery installed on the tooling 1 or electrically connected to the control box. To further improve the alignment efficiency during the clamping process of the clamping mechanism 2, in this embodiment, there is also a deflection mechanism for adjusting the angle of the clamping mechanism 2. One end of the base 21 is hinged to the tooling 1, and the other end is drivingly connected to the deflection mechanism. The deflection mechanism includes a fourth driver fixedly installed inside the tooling 1. The output shaft of the fourth driver is coaxially connected with a lead screw. A deflection shaft sleeve is threadedly connected to the lead screw. The deflection shaft sleeve is rotatably connected to the base 21; On the surface of the base 21, there is a positioning camera electrically connected to the control box and used for capturing the image of the clamping mechanism 2. Since the orientation of the positioning camera is always consistent with the clamping mechanism 2, no matter what angle it deflects, its image always includes the opening ring 24 of the clamping mechanism 2, thus enabling a more intuitive alignment with the transmission line for clamping operations. While improving the clamping accuracy and precision, it can also change the positional relationship between adjacent two opening rings 24, so as to adapt to the clamping and detection of multi-split lines with different split numbers, thereby expanding the application fields and scenarios of this application.

[0053] Embodiment 3:

[0054] This embodiment provides a method for X-ray detection of strain clamps for multi-split lines, which is implemented by using the X-ray detection device for strain clamps for multi-split lines provided in Embodiment 2, and specifically includes the following steps:

[0055] Step S100: Use a drone or a manned helicopter to suspend the tension clamp X-ray detection device to the center position of the multi-conductor transmission line with a looped insulating rope, and then slowly move it so that the tension clamp X-ray detection device hovers near the tension clamp of the transmission line.

[0056] Step S200: Establish a communication connection between the ground, helicopter, or background master control unit and the control box, and send a control command to the control box to drive the clamping mechanism 2 to extend until the split ring 24 is clamped onto the first transmission line; extend the clamping mechanism 2 on the opposite side of the first transmission line in the same way to clamp the second transmission line until more than three clamped transmission lines or each clamping mechanism 2 forms a clamping relationship with the transmission line at the corresponding position, completing the equipment positioning and installation. As an optional improvement in an embodiment of the present application, the transmission line can be clamped more quickly by means of visual image feedback. Specifically, in this embodiment, step S200 further includes a visual alignment step, which specifically includes the relative position of the transmission line and the clamping mechanism 2 transmitted back by the positioning camera, and adjusts the telescopic and deflection mechanisms of the clamping mechanism 2 to make the split ring 24 align with and clamp the first transmission line. It should be noted that since the number of splits and relative spacing of the multi-conductor transmission line are different, in order to save costs, reduce the specificity of the equipment, and improve the compatibility of the equipment, the deflection angle of the clamping mechanism 2 can be changed by setting the deflection mechanism, so that the multi-conductor line can be clamped by at least 3 clamping mechanisms 2, thus making the application scenario of the present application more extensive and avoiding the problem of application limitations due to only being able to detect specific split line numbers.

[0057] Step S300: Send a driving signal to the first driving device 11, and at the same time, stop after aligning the X-ray machine 16 with the nearest first transmission line through the real-time image transmitted back by the camera. Then send a driving signal to the third driver 19, and drive the detector 15 to rotate into the camera's field of view by driving the gear ring 18 through the third driver 19. Then extend the telescopic rod 13 so that the detector 15 is located outside the first transmission line; drive the detector 15 to deflect through the second driver 14, and at the same time, finely adjust the angle of the gear ring 18 so that the current detector 15 is perpendicular to the X-ray machine 16.

[0058] Step S400: Send a command to the X-ray machine 16 through the communication unit to start shooting, and obtain the ray image of the current first transmission line and the tension clamp.

[0059] Step S500: After shooting, use the control opposite to that of the telescopic rod 13 and the second driver 14 in step S300 to retract the detector 15 to the initial storage state.

[0060] Step S600: Send driving instructions to the first driver 11 and the third driver 19 simultaneously, so that the X-ray machine 16 and the detector 15 rotate by the same angle a in the same direction, where the angle a = 360° / N, and N is the number of split lines;

[0061] Step S700: Repeat steps S300 - S500 until the X-ray image of the strain clamp of the last transmission line is obtained;

[0062] Step S800: Lift the strain clamp X-ray detection device away from the work site by a drone or a manned helicopter. The labor cost invested in the present invention is smaller than that of the prior art. Only one lifting of the detection device is required. After the lifting is completed, the detection can be controlled by the drone operator or the lifting operator in the helicopter, avoiding the input and coordination of the existing operators on the tower and under the tower, and greatly saving the detection labor cost.

[0063] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The X-ray detection device for strain clamps of multi-split lines is used for clamping on multi-split transmission lines to perform non-destructive detection on strain clamps, and is characterized in that: It includes a tooling (1) for installing an X-ray machine (16) and a detector (15). The tooling (1) is provided with a plurality of clamping mechanisms (2) on the side wall that can be telescoped to clamp multi-split transmission lines; the X-ray machine (16) is rotatably arranged in the tooling (1), and a gear ring (18) is also rotatably arranged on the tooling (1). A telescopic rod (13) is fixedly arranged on the gear ring (18), and a detector (15) that is rotatably arranged at the end of the telescopic rod (13) and is deflected to align with the X-ray machine (16); the tooling (1) is a columnar structure formed by integral molding. There is a cavity in the tooling (1) for accommodating the X-ray machine (16). At least one bearing (17) for rotatably connecting the X-ray machine (16) and the tooling (1) is arranged on the inner wall of the cavity. A first driver (11) is installed at the end of the tooling (1) and is connected to the outer shell of the X-ray machine (16) to drive the X-ray machine (16) to rotate relative to the tooling (1); the gear ring (18) and the X-ray machine (16) are located on the same rotation axis. A third driver (19) that is drivingly connected to the gear ring (18) is fixedly installed on the side wall of the tooling (1); a second driver (14) for driving the detector (15) to deflect is fixedly installed at a position on the telescopic rod (13) close to the detector (15). The driving shaft of the second driver (14) is fixedly connected with a worm, and the worm is drivingly connected with a turbine disk fixedly connected to the detector (15). The second driver (14) drives the detector (15) to deflect clockwise / counterclockwise to align with the central ray of the X-ray machine (16) by driving the worm to rotate forward / backward; the clamping mechanism (2) includes a base (21) installed on the side wall of the tooling (1). An expansion frame (22) formed by hinging a plurality of connecting rods end to end is installed on the base (21). An opening ring (24) for clamping the multi-split transmission line is connected to the free end of the expansion frame (22), and a pneumatic expansion tube (23) with both ends respectively connected to the base (21) and the opening ring (24).

2. The X-ray detection device for strain clamps of multi-split lines according to claim 1, is characterized in that: A pressurization mechanism (12) for air pressurization and pressure relief is installed on the side wall of the tooling (1). The pressurization mechanism (12) is respectively communicated with the pneumatic expansion tube (23) and the telescopic rod (13) through a plurality of synchronous hoses. Solenoid valves for controlling the on / off of gas are arranged on both the pneumatic expansion tube (23) and the telescopic rod (13). Any solenoid valve is electrically connected to a control box arranged on the side wall of the tooling (1). The control box includes a control unit for controlling the first driver (11), the second driver (14), the third driver (19), the pressurization mechanism (12), the detector (15), the X-ray machine (16), and a camera arranged on the X-ray machine (16) beside the emission of the central ray for obtaining the picture of the detector (15), and a communication unit for receiving ground or background control signals, and a lithium battery arranged on the tooling (1) or electrically connected to the control box.

3. The X-ray detection device for strain clamps of multi-split lines according to claim 2, is characterized in that: It further includes a deflection mechanism for adjusting the angle of the clamping mechanism (2). One end of the base (21) is hinged to the tooling (1), and the other end is drivingly connected to the deflection mechanism. The deflection mechanism includes a fourth driver fixedly installed in the tooling (1). The output shaft of the fourth driver is coaxially connected with a lead screw. A deflection shaft sleeve is threadedly connected to the lead screw, and the deflection shaft sleeve is rotatably connected to the base (21). A positioning camera electrically connected to the control box and used for capturing the picture of the clamping mechanism (2) is installed on the surface of the base (21).

4. The X-ray detection method for strain clamps of multi-split lines, is characterized in that: It is realized by using the X-ray detection device for strain clamps of multi-split lines described in claim 3, and specifically includes the following steps: Step S100: Use a drone or a manned helicopter to suspend the X-ray detection device for strain clamps to the center position of the multi-split transmission line by using a looped insulating rope, and then slowly move it so that the X-ray detection device for strain clamps hovers near the strain clamp on the transmission line. Step S200: Establish a communication connection between the ground, helicopter or background main control machine and the control box, and send a control command to the control box to drive the clamping mechanism (2) to extend until the opening ring (24) is clamped to the first transmission line; extend the clamping mechanism (2) on the opposite side of the first transmission line in the same way to clamp the second transmission line until the clamped transmission lines exceed three or each clamping mechanism 2 forms a clamping relationship with the corresponding transmission line, and complete the positioning and installation of the device. Step S300: Send a driving signal to the first driver (11), and at the same time, make the X-ray machine (16) aim at the nearest first transmission line and stop through the real-time picture transmitted back by the camera, then send a driving signal to the third driver (19), drive the toothed ring (18) by the third driver (19) to drive the detector (15) to rotate into the camera's field of view, and then make the detector (15) located outside the first transmission line by extending the telescopic rod (13); drive the detector (15) to deflect by the second driver (14), and at the same time, finely adjust the angle of the toothed ring (18) so that the current detector (15) is perpendicular to the X-ray machine (16). Step S400: Send a command to the X-ray machine (16) through the communication unit to start shooting, and obtain the ray image of the current first transmission line and the strain clamp.

5. The X-ray detection method for strain clamps of multi-split lines according to claim 4, is characterized in that: After the step S400, it further includes: Step S500: After shooting, use the control opposite to that of the telescopic rod (13) and the second driver (14) in step S300 to retract the detector (15) to the initial storage state. Step S600: Send driving commands to the first driver (11) and the third driver (19) at the same time, so that the X-ray machine (16) and the detector (15) rotate in the same direction by the same angle a, where a = 360° / N, and N is the number of split lines. Step S700: Repeat steps S300 - S500 until the X-ray image of the strain clamp of the last transmission line is obtained. Step S800, lift the tension clamp X-ray detection device away from the work site by using a drone or a manned helicopter.

6. The X-ray detection method for strain clamps of multi-split lines according to claim 5, is characterized in that: Step S200 further includes a step of visual alignment, specifically including the relative position of the transmission line and the clamping mechanism (2) transmitted back by the positioning camera, and adjusting the telescopic and deflection mechanisms of the clamping mechanism (2) to deflect so that the split ring (24) is aligned with and clamped to the first transmission line.

Images