Split body of X-ray flaw detection equipment for four-bundle conductor of power transmission line

Abstract

The utility model discloses a kind of four split conductor X-ray flaw detection equipment's split type fuselage of transmission line, including mounting plate, movable plate, X-ray machine component and lifting drive. The lower end middle position of mounting plate is provided with the installation groove for installing X-ray machine component, X-ray machine component is placed in installation groove, and is fixedly connected with two rotating shafts, one of rotating shafts is connected with rotary driver;Movable plate is arranged below mounting plate, which can move in vertical direction by lifting drive. The fuselage of the utility model is split type structure design, and the vertical direction movement of movable plate can be realized by cooperating lifting drive, so that X-ray machine component and mounting plate and movable plate can be carried respectively corresponding four split conductor upper layer and lower layer conductor fittings of reversible imaging plate, realize unmanned aerial vehicle mounting to complete the detection of lower two split conductor fittings in four conductors in single time, significantly improve the detection efficiency under the scene of multiple split conductor.

Description

Technical Field

[0001] This utility model relates to the field of X-ray flaw detection equipment technology, specifically to a split-type body of an X-ray flaw detection equipment for four-split conductors of power transmission lines. Background Technology

[0002] In the operation of power transmission networks, the connecting hardware (such as suspension clamps and tension clamps) of four-split conductors (power transmission structures composed of four parallel conductors connected by spacers) is prone to cracking due to long-term stress, and needs to be regularly inspected with X-rays to prevent breakage accidents.

[0003] Traditional manual X-ray inspection of power lines requires personnel to climb the tower. During the operation, the close proximity of the personnel to the conductors necessitates a power outage to prevent electric shock. This makes scheduling and coordinating power outages difficult and poses a high risk to the power grid during outages. Furthermore, the operation requires multiple people to climb the tower, posing safety risks such as falls from heights, and also results in low work efficiency.

[0004] With the rapid development of drone technology, drones equipped with flaw detection robots can achieve efficient and accurate inspection of power transmission lines. By mounting a lightweight X-ray source and a digital imaging plate, the drone can precisely hover beside the fittings, allowing the X-rays to penetrate the internal structure of the fittings, and the imaging plate to capture images of defects. For example, the inspection device in Reference 1.

[0005] Reference 1: Chinese patent document with publication number CN117446222A.

[0006] Reference 1 describes a live detection device and method for tension clamps of transmission lines based on dual unmanned aerial vehicles (UAVs). The detection device includes dual UAVs, a detection unit, a position adjustment component, and an imaging plate. The dual UAVs are a master unit and a slave unit, respectively. The imaging plate is located on the slave unit, the position adjustment component is located on the master unit, and the detection unit is located on the position adjustment component. The position adjustment component is used to adjust the position of the detection unit.

[0007] When performing high-altitude flaw detection, this type of dual-drone equipment requires the drones to remain suspended in the air at all times, which places high demands on the operators. Furthermore, in strong winds, it is difficult for the drones to maintain stable hovering. In addition, heavy-duty drones need to maintain a certain safe distance (to prevent rotor airflow from disturbing the conductors), which may lead to attenuation of X-ray intensity, insufficient particle reception on the imaging plate, and a decrease in the detection rate of microcracks in hardware.

[0008] Existing technologies also document devices capable of performing non-destructive testing on power transmission lines via drones, such as the testing device described in Reference 2.

[0009] Reference 2: Chinese patent document with publication number CN119224014A.

[0010] Reference 2 describes a live X-ray digital imaging detection device for tension clamps of transmission lines, including an X-ray machine, an imaging plate that works with the X-ray machine, and a carrier drone. The lower end of the drone is equipped with an equipment frame, and a walking mechanism is installed on the equipment frame. The bottom of the carrier drone is equipped with landing gear, a camera mechanism, and a power supply. The walking mechanism includes a dust cover, grooved pulleys, and a cleaning plate. The grooved pulleys and the cleaning plate are installed inside the dust cover and rotatably connected to it. The walking mechanism is movably connected to the equipment frame.

[0011] This inspection device can perform X-ray inspection on single-split conductors. However, when inspecting four-split conductors, the device needs to pass through the gaps between the conductors, making it incapable of inspecting four-split conductors. Furthermore, existing inspection devices for four-split conductors are all self-propelled, resulting in complex structures. Therefore, the applicant proposes a non-walking X-ray flaw detection device for four-split conductors in transmission lines. This device utilizes a split-type body with an adjustable distance between the two parts. Each body carries an imaging plate, and by adjusting the body, non-destructive testing of the hardware of four split conductors can be completed in a single operation. Utility Model Content

[0012] The purpose of this invention is to provide a split-type body for an X-ray flaw detection device for four-split conductors of power transmission lines.

[0013] To address the shortcomings of the aforementioned technical problems, the present invention adopts the following technical solution: a split-type body for X-ray flaw detection equipment for four-split conductors of transmission lines, comprising a mounting plate, a movable plate, an X-ray machine assembly, and a lifting drive.

[0014] The mounting plate has a mounting slot for mounting an X-ray machine assembly at the lower middle position. Two bearing seats are symmetrically arranged on the two inner walls of the mounting slot. A rotating shaft is respectively inserted through the bearing seat. The X-ray machine assembly is placed in the mounting slot and fixedly connected to the two rotating shafts. One of the rotating shafts is connected to a rotary driver.

[0015] The movable plate is located below the mounting plate. A clearance groove is provided at the middle of the upper end of the movable plate. It can move vertically by means of a lifting drive. The lifting drive includes a lifting winch and a hoisting rope. The lifting winch is built into the cavity of the mounting plate. One end of the hoisting rope is connected to the output shaft of the lifting winch, and the other end is connected to the upper end face of the movable plate.

[0016] As a split-type body of the X-ray flaw detection equipment for four-split conductors of transmission lines of this utility model, the feature is that: the upper end surface of the mounting plate is provided with a hook for use with a drone.

[0017] As a split-type body of the X-ray flaw detection equipment for four-split conductors of transmission lines according to this utility model, the feature is that: the upper end face of the movable plate is provided with a plug, and the lower end face of the mounting plate is provided with a slot that cooperates with the plug.

[0018] As a split-type body of the X-ray flaw detection equipment for four-split conductors of transmission lines according to this utility model, the feature is that: the upper end face of the movable plate is provided with plugs on both sides of the clearance groove, and the lower end face of the mounting plate is provided with two slots.

[0019] As a split-type body of the X-ray flaw detection equipment for four-split conductors of transmission lines, the present invention is characterized in that: the lifting drive includes two winch motors, which are respectively set above two slots, and two suspension ropes are respectively connected to two plugs on the movable plate.

[0020] As a split-type body of the X-ray flaw detection equipment for four-split conductors of transmission lines according to this utility model, the plug has an insertion part formed at the insertion end, the insertion part has an insertion chamfer, and the chamfer angle of the insertion chamfer is greater than 45°.

[0021] As a split-type body of the X-ray flaw detection equipment for four-split conductors of transmission lines according to this utility model, the feature is that: a guide structure is provided at the lower entrance of the slot, the guide structure includes an flared conical guide part extending from the inner wall of the slot to the outside.

[0022] As a split-type body of the X-ray flaw detection equipment for four-split conductors of transmission lines according to this utility model, the feature is that: the end of the plug insertion end is provided with a flexible layer, and the flexible layer is made of rubber.

[0023] As a split-type body of the X-ray flaw detection equipment for four-split conductors of transmission lines, the present invention is characterized in that: the rotary drive includes a drive motor, a reducer and a coupling built into the mounting plate, and the drive motor is connected to the rotating shaft through the reducer and the coupling.

[0024] As a split-type body of the X-ray flaw detection equipment for four-split conductors of transmission lines, the present invention is characterized in that: the X-ray machine assembly includes a housing and an X-ray machine installed inside the housing, and the housing and the end of the rotating shaft are detachably connected together.

[0025] This invention offers the following advantages: The fuselage features a split structure design with a movable plate and a mounting plate. Combined with a lifting actuator, the movable plate can move vertically, allowing the X-ray machine assembly, the mounting plate, and the rotatable imaging plate carried on the movable plate to respectively correspond to the upper and lower wire fittings of a four-split wire. The split fuselage and rotatable imaging plate assembly enable a single UAV load to complete the inspection of the fittings for the lower two split wires out of four wires, significantly improving inspection efficiency in multi-split wire scenarios. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the split-type fuselage of this utility model;

[0027] Figure 2 This is a schematic diagram of the split-type fuselage of this utility model (with the movable plate and mounting plate separated).

[0028] Figure 3 This is a schematic diagram of the application of the split-type body of this utility model to non-destructive testing of four-split wires;

[0029] Marked in the image:

[0030] 1. Mounting plate;

[0031] 101. Slot;

[0032] 2. Movable board;

[0033] 201. Plug;

[0034] 3. X-ray machine components;

[0035] 4. Suspension rope;

[0036] 5. Mounting slot;

[0037] 6. Clearance groove;

[0038] 7. Hooks;

[0039] 8. Imaging plate. Detailed Implementation

[0040] To better understand this utility model, the following embodiments further illustrate the content of this utility model, but the content of this utility model is not limited to the following embodiments.

[0041] like Figure 1 and 2 The image shows a split-type body for X-ray flaw detection of four-split conductors in power transmission lines, comprising a mounting plate 1, a movable plate 2, an X-ray machine assembly 3, and a lifting drive. The upper surface of the mounting plate 1 is provided with a hook 7 for use with a drone.

[0042] A mounting slot 5 for mounting an X-ray machine assembly 3 is provided at the lower center of the mounting plate 1. Two bearing seats are symmetrically arranged on the two inner walls of the mounting slot 5, and rotating shafts are respectively mounted on the bearing seats. The X-ray machine assembly 3 is placed in the mounting slot 5 and fixedly connected to the two rotating shafts, one of which is connected to a rotary driver. The X-ray machine assembly 3 includes a housing and an X-ray machine installed inside the housing. The housing and the end of the rotating shaft are detachably connected together. The rotary driver includes a drive motor, a reducer, and a coupling built into the mounting plate 1. The drive motor is connected to the rotating shaft through the reducer and the coupling.

[0043] The movable plate 2 is located below the mounting plate 1. A clearance groove 6 is provided at the middle of the upper end of the movable plate 2, which can move vertically by means of a lifting drive. Plugs 201 are respectively provided on both sides of the clearance groove 6 on the upper end surface of the movable plate 2, and two slots 101 are correspondingly provided on the lower end surface of the mounting plate 1.

[0044] The insertion end of the plug 201 has a guide portion with a chamfered angle greater than 45°. A guide structure is provided at the lower entrance of the slot 101, including a flared tapered guide portion extending outward from the inner wall of the slot 101. A flexible layer, made of rubber, is provided at the tip of the insertion end of the plug 201.

[0045] The plug 201 of the movable plate 2 and the slot 101 of the mounting plate 1 are fitted with an inlet chamfer and a flared tapered guide part. Combined with the rubber flexible layer at the end of the plug, the movable plate and the mounting plate can be quickly and accurately connected, reducing the impact of mechanical vibration during high-altitude operations, ensuring the stability of the X-ray penetration path, and thus improving the detection rate of microcracks in hardware.

[0046] The lifting drive includes two winch motors, which are respectively located above the two slots 101, and two hoisting ropes 4 are respectively connected to the two plugs 201 of the movable plate 2.

[0047] The modular body of this invention allows the movable plate 2 to be lowered via a lifting driver. Together with the imaging plate 8 it carries and the X-ray machine components on the mounting plate 1, it can perform non-destructive testing of the fittings of the lower two split wires in a four-split wire.

[0048] A pair of imaging plates are installed on both the mounting plate and the movable plate. The imaging plates can be flipped open and retracted like wings.

[0049] like Figure 3As shown: The UAV, carrying a mounting plate via a hook, flies above the four-split conductor. The operator, through the ground control system, unfolds the two imaging plates on the mounting plate and then lowers the mounting plate, placing the two imaging plates on the two upper conductors. A drive motor rotates the X-ray machine assembly, aligning the X-ray emission direction with the suspension clamps or tension clamps of the two upper conductors. Simultaneously, the imaging plate carried by the movable plate receives X-ray signals penetrating the fittings, completing the inspection of the fittings of the two upper conductors. Then, a winch motor lowers the movable plate, completely separating it from the mounting plate. When the movable plate is below the two lower conductors, the operator, through the ground control system, unfolds the two imaging plates on the mounting plate and then raises the movable plate until the two imaging plates contact the fittings of the two lower conductors. The drive motor rotates the X-ray machine assembly, aligning the X-ray emission direction with the suspension clamps or tension clamps of the two lower conductors. The imaging plate carried by the movable plate simultaneously receives X-ray signals penetrating the fittings, completing the inspection of the fittings of the two lower conductors. After the test is completed, the winch motor rewinds the hoisting rope, the movable plate rises to the initial position, the plug and slot reconnect, and the drone carrying the equipment returns to the ground.

[0050] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this utility model.

Claims

1. A split-type body for X-ray flaw detection equipment of four-split conductors of transmission lines, characterized in that: Includes mounting plate (1), movable plate (2), X-ray machine assembly (3), and lifting drive; The mounting plate (1) has a mounting groove (5) for mounting the X-ray machine assembly (3) at the middle of its lower end. The two inner walls of the mounting groove (5) are symmetrically provided with two bearing seats, and rotating shafts are respectively passed through the bearing seats. The X-ray machine assembly (3) is placed in the mounting groove (5) and fixedly connected to the two rotating shafts. One of the rotating shafts is connected to a rotary driver. The movable plate (2) is located below the mounting plate (1). A clearance groove (6) is provided at the middle of the upper end of the movable plate (2). It can move vertically through the lifting drive. The lifting drive includes a lifting winch and a hoisting rope (4). The lifting winch is built into the cavity of the mounting plate (1). One end of the hoisting rope (4) is connected to the output shaft of the lifting winch, and the other end is connected to the upper surface of the movable plate (2).

2. The split-type body of the X-ray flaw detection equipment for four-split conductors of transmission lines as described in claim 1, characterized in that: The upper surface of the mounting plate (1) is provided with a hook (7) for use with the UAV.

3. The split-type body of the X-ray flaw detection equipment for four-split conductors of transmission lines as described in claim 1, characterized in that: The upper end of the movable plate (2) is provided with a plug (201), and the lower end of the mounting plate (1) is provided with a slot (101) that mates with the plug (201).

4. The split-type body of the X-ray flaw detection equipment for four-split conductors of transmission lines as described in claim 3, characterized in that: The upper end face of the movable plate (2) is provided with plugs (201) on both sides of the clearance groove (6), and the lower end face of the mounting plate (1) is provided with two slots (101).

5. The split-type body of the X-ray flaw detection equipment for four-split conductors of transmission lines as described in claim 4, characterized in that: It has two lifting drives, which are respectively located above two slots (101), and two hanging ropes (4) are respectively connected to the two plugs (201) of the movable plate (2).

6. The split-type body of the X-ray flaw detection equipment for four-split conductors of transmission lines as described in claim 3, characterized in that: The insertion end of the plug (201) has an inlet portion, which has an inlet chamfer, and the chamfer angle of the inlet chamfer is greater than 45°.

7. The split-type body of the X-ray flaw detection equipment for four-split conductors of transmission lines as described in claim 3, characterized in that: A guide structure is provided at the lower entrance of the slot (101), the guide structure including an flared conical guide portion extending outward from the inner wall of the slot (101).

8. The split-type body of the X-ray flaw detection equipment for four-split conductors of transmission lines as described in claim 3, characterized in that: The plug (201) has a flexible layer at the insertion end, and the flexible layer is made of rubber.

9. The split-type body of the X-ray flaw detection equipment for four-split conductors of transmission lines as described in claim 1, characterized in that: The rotary drive includes a drive motor, a reducer and a coupling built into the mounting plate (1), and the drive motor is connected to the rotating shaft through the reducer and the coupling.

10. The split-type body of the X-ray flaw detection equipment for four-split conductors of transmission lines as described in claim 9, characterized in that: The X-ray machine assembly (3) includes a housing and an X-ray machine installed inside the housing, with the housing and the end of the rotating shaft detachably connected together.

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