Overturning structure for high-altitude flaw detection of power transmission line

Abstract

The utility model relates to a turnover structure for high-altitude flaw detection of a power transmission line, which comprises a fixed frame and a movable frame which are in linear movement fit, a turnover frame is arranged on the movable frame, and two ends of the turnover frame are respectively provided with a receiving imaging bottom plate and an X-ray machine; the rotating axes of the upper movable part and the lower movable part are parallel, the upper movable part and the lower movable part are rotationally connected to the upper end and the lower end of the fixed part respectively, the upper movable part is driven by a first rotating mechanism, and the lower movable part is driven by a second rotating mechanism; the receiving imaging bottom plate is mounted on the upper movable part, and the X-ray machine is mounted on the lower movable part; the receiving imaging bottom plate and the X-ray machine are driven by respective rotating mechanisms to independently rotate, so that the distance and the angle between the receiving imaging bottom plate and the X-ray machine are adjustable; the distance and angle adjustable receiving imaging bottom plate and the X-ray machine can flexibly move on a complex power transmission line with narrow lead distance, and the obstacle avoidance capability is better.

Description

Technical Field

[0001] The utility model relates to a turnover structure for high-altitude flaw detection of transmission lines, belonging to the technical field of non-destructive testing of transmission lines. Background Technique

[0002] Overhead transmission lines are prone to failure problems such as cracking, deformation, ablation, and corrosion at the line body and key connection parts, which pose major hidden dangers to the safe operation of the lines. To eliminate potential accidents at the overhead transmission line body and key connection parts, currently, it mainly relies on manual tower climbing for high-altitude operations, which has the risk of high falls, and the operators need to frequently climb up and down the tower to avoid radiation damage, resulting in low detection efficiency.

[0003] As an important non-destructive testing method, the "drone + ray" detection technology has the advantages of high efficiency, convenience, and no personal safety risks. It has begun to be used as an alternative to manual tower climbing operations. The "drone + ray" detection technology relies on connecting components such as structural supports, and the role of the structural supports is becoming more and more obvious.

[0004] For example, the Chinese patent with the publication number CN219369611U discloses a high-altitude unmanned ray detection system for transmission lines. It adopts an integrated design to mount the receiving imaging bottom plate and the X-ray machine on the turnover frame at the same time with a fixed spacing, and forms a vertical irradiation surface. It uses a large-load drone to carry the overall X-ray flaw detection equipment, and uses horizontal traction to drive the X-ray flaw detection equipment to move forward on the cable by rollers. Through the lifting drive component and the turnover drive component, lifting and rotation operations can be realized, and the receiving imaging bottom plate and the X-ray machine can be lowered or rotated to the position of photographing the conductor below, so as to meet the sequential detection of the cables of the four-split conductors that are not in the upper and lower horizontal positions.

[0005] However, when the receiving imaging bottom plate and the X-ray machine are integrally designed and mounted on the turnover frame at the same time with a fixed spacing, when encountering transmission lines with a narrow spacing, the rotation action of the turnover frame is restricted by space or blocked by other accessories such as drainage line clamps and adjustment plates on the transmission line. During the rotation of the turnover frame, due to the large swing amplitude of the receiving imaging bottom plate and the X-ray machine during turnover, it is easy to bump into the transmission line, increasing the risk of collision. At the same time, due to the rotation being blocked, a ray penetration layout cannot be formed, and finally ray images cannot be collected. Content of the Utility Model

[0006] The purpose of the utility model is to provide a turnover structure for high-altitude flaw detection of transmission lines to solve the problems put forward in the above background technique.

[0007] The technical solution of the utility model is as follows:

[0008] A flipping structure for high-altitude flaw detection of transmission lines, comprising a fixed frame and a movable frame that are linearly movably matched. A flipping frame is arranged on the movable frame, and a receiving imaging bottom plate and an X-ray machine are respectively installed at both ends of the flipping frame;

[0009] The flipping frame includes a fixed part, an upper movable part and a lower movable part with parallel rotation axes and respectively rotatably connected to the upper and lower ends of the fixed part. The upper movable part is driven by a first rotating mechanism, and the lower movable part is driven by a second rotating mechanism;

[0010] The receiving imaging bottom plate is installed on the upper movable part, and the X-ray machine is installed on the lower movable part.

[0011] Preferably, a hook frame is arranged at the top of the fixed frame.

[0012] Preferably, the fixed part in the flipping frame is fixed on the movable frame.

[0013] Preferably, the fixed part in the flipping frame is rotatably connected to the movable frame through a third rotating mechanism.

[0014] Preferably, a plurality of walking rollers are installed on the fixed frame.

[0015] Preferably, the hinge point between the lower movable part and the fixed part is relatively located above the X-ray machine.

[0016] Preferably, the hinge point between the lower movable part and the fixed part is relatively located in the middle of the X-ray machine.

[0017] The utility model has the following beneficial effects:

[0018] The receiving imaging bottom plate and the X-ray machine can be independently rotated by the respective rotating mechanisms, so that the distance and angle between the receiving imaging bottom plate and the X-ray machine are adjustable;

[0019] The receiving imaging bottom plate and the X-ray machine with adjustable distance and angle can move flexibly on transmission lines with narrow wire spacing and complex structures, and have better obstacle avoidance ability.

[0020] The swing amplitudes of the receiving imaging bottom plate and the X-ray machine are independently controllable, reducing the space required to complete the flipping action, avoiding the risk of bumping with the transmission line and its accessories, and at the same time avoiding the obstruction of accessories and the interference with the ray beam, which is convenient for completing the ray penetration arrangement. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of Embodiment 1 of the utility model;

[0022] Figure 2 is Figure 1 a schematic structural diagram of the flipping frame in

[0023] Figure 3 This is the structural schematic diagram of the second embodiment of the present utility model;

[0024] Figure 4 is Figure 3 the structural schematic diagram of the flipping frame in

[0025] The reference numerals in the figure are represented as:

[0026] 100, receiving imaging base plate; 200, X-ray machine;

[0027] 1, fixing frame; 11, hook frame; 2, movable frame; 3, flipping frame; 31, fixing part; 32, upper movable part; 33, lower movable part; 34, first rotating mechanism; 35, second rotating mechanism; 36, third rotating mechanism; 4, traveling roller. Specific embodiments

[0028] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Embodiment 1:

[0030] A flipping structure for high-altitude flaw detection of transmission lines, as Figure 1-2 shown:

[0031] The X-ray machine 200 and the receiving imaging base plate 100 cooperate to form a ray flaw detection device. When the X-ray machine 200 is aligned with the receiving imaging base plate 100 and the transmission line is located between the two, non-destructive flaw detection is achieved.

[0032] The fixing frame 1 is composed of hollow rods spliced together with a relatively low weight. A hook frame 11 is fixedly installed at the top of the fixing frame 1, and the entire structure is hung on the unmanned aerial vehicle through the hook frame 11;

[0033] The movable frame 2 is composed of hollow rods spliced together with a relatively low weight; the movable frame 2 is in vertical linear sliding fit relative to the fixing frame 1, and the movable frame 2 is relatively placed inside the fixing frame 1. Thus, the upper and lower limits of the movable frame 2 are limited by the top and bottom walls of the fixing frame 1. A power device for driving the vertical linear movement of the movable frame 2 is installed on the fixing frame 1, and the power device can adopt an electric telescopic rod or a combination of a winch and a steel wire rope; the flipping frame 3 is installed on the movable frame 2.

[0034] The flipping frame 3 includes a fixing part 31, an upper movable part 32 and a lower movable part 33, and the fixing part 31 is installed on the movable frame 2.

[0035] The lower end of the upper movable part 32 is rotatably connected to the upper end of the fixed part 31. The receiving imaging bottom plate 100 is fixedly / movably installed at the upper end of the upper movable part 32. The vertical distance between the receiving imaging bottom plate 100 and the upper end of the fixed part 31 is approximately about 1 / 2 of the overall vertical length of the flipping frame 3. A first rotating mechanism 34 is also installed at the upper end of the fixed part 31. The first rotating mechanism 34 is used to drive the upper movable part 32 to rotate relative to the fixed part 31.

[0036] The upper end of the lower movable part 33 is rotatably connected to the lower end of the fixed part 31. The X-ray machine 200 is fixedly installed at the lower end of the lower movable part 33. The vertical length of the X-ray machine 200 is less than the vertical length of the lower movable part 33. As Figure 2 shown, the hinge joint between the fixed part 31 and the lower movable part 33 is relatively located above the X-ray machine 200. A second rotating mechanism 35 is also installed at the lower end of the fixed part 31. The second rotating mechanism 35 is used to drive the lower movable part 33 to rotate relative to the fixed part 31.

[0037] Furthermore, the lengths of the fixed part 31, the upper movable part 32, and the lower movable part 33 can be selected according to requirements. The lengths of the fixed part 31, the upper movable part 32, and the lower movable part 33 can be zero. The receiving imaging bottom plate 100 can be rotatably / fixedly installed at any position on the upper movable part 32. The X-ray machine 20 can be rotatably / fixedly installed at any position on the lower movable part 33.

[0038] Embodiment 2: As Figure 3-4 shown, it includes all the contents of Embodiment 1. The difference is that:

[0039] The vertical length of the X-ray machine 200 is greater than the vertical length of the lower movable part 33. As Figure 4 shown, the hinge joint between the fixed part 31 and the lower movable part 33 is relatively located at the middle position of the X-ray machine 200.

[0040] The structures of the flipping frames 3 in Embodiment 1 and Embodiment 2 are the same. As Figure 4 shown, the flipping frame 3 has a transverse part A. As Figure 2 shown, in Embodiment 1, the transverse part A is relatively located on the lower movable part 33, and the X-ray machine 200 is relatively fixedly arranged with respect to the transverse part A. As Figure 4 shown, in Embodiment 2, the transverse part A is relatively located on the fixed part 31, and the X-ray machine 200 is relatively movably arranged with respect to the transverse part A.

[0041] Embodiment 3: It includes all the contents of Embodiment 1 / 2:

[0042] Four co-planar and horizontally arranged traveling rollers 4 are installed on the upper part of the fixed frame 1. Each traveling roller 4 has its own power, and the traveling rollers 4 are placed on the upper surface of the transmission line to facilitate movement on the transmission line.

[0043] The fixed part 31 in the flipping frame 3 is relatively fixed on the movable frame 2.

[0044] In another embodiment, the fixing part 31 in the flipping frame 3 is rotatably connected to the movable frame 2 relatively, and the rotation axis is parallel to the rotation axes of the upper movable part 32 / the lower movable part 33. A third rotation mechanism 36 is installed on the movable frame 2, and the third rotation mechanism 36 drives the fixing part 31 to rotate relative to the movable frame 2.

[0045] The first rotation mechanism 34, the second rotation mechanism 35 and the third rotation mechanism 36 all adopt existing structures, such as a combination of a motor and a speed reduction structure.

[0046] Working principle:

[0047] The whole structure is hung on the unmanned aerial vehicle through the hook frame 11, and the unmanned aerial vehicle flies and transports the whole device to the transmission line located at high altitude, so that the walking rollers 4 are lapped on the upper surface of the transmission line.

[0048] The user remotely controls through a remote controller on the ground. First, the power device drives the movable frame 2 to vertically lift and lower relative to the fixed frame 1. When the space of the transmission line is large, the flipping frame 3 can be directly driven to rotate relative to the movable frame 2 by controlling the second rotation mechanism 36.

[0049] When the space of the transmission line is small, the upper movable part 32 can be driven to rotate relative to the fixing part 31 by controlling the first rotation mechanism 34, and the lower movable part 33 can be driven to rotate relative to the fixing part 31 by controlling the second rotation mechanism 35. The X-ray machine 200 and the receiving imaging bottom plate 100 can both rotate independently to facilitate flexible movement in a narrow small space.

[0050] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, are similarly included in the patent protection scope of the present invention.

Claims

1. A flip structure for high-altitude flaw detection of power transmission lines, comprising a fixed frame (1) and a movable frame (2) that can move in a linear manner, a flip frame (3) being arranged on the movable frame (2), and receiving imaging base plates (100) and X-ray machines (200) being respectively installed at both ends of the flip frame (3), characterized in that: The turning frame (3) comprises a fixed part (31), and an upper movable part (32) and a lower movable part (33) whose rotation axes are parallel to each other and are rotatably connected to the upper and lower ends of the fixed part (31), respectively; the upper movable part (32) is driven by a first rotating mechanism (34), and the lower movable part (33) is driven by a second rotating mechanism (35); The receiving imaging base plate (100) is mounted on the upper movable part (32), and the X-ray machine (200) is mounted on the lower movable part (33).

2. A flip structure for high-altitude flaw detection of power transmission lines as claimed in claim 1, characterized in that: A hook frame (11) is arranged on the top of the fixing frame (1).

3. A flip structure for high-altitude flaw detection of power transmission lines as claimed in claim 1, characterized in that: The fixing portion (31) in the turning frame (3) is fixed on the movable frame (2).

4. A flip structure for high-altitude flaw detection of power transmission lines as claimed in claim 1, characterized in that: The fixed part (31) in the turning frame (3) is driven to rotate and connected to the movable frame (2) through a third rotating mechanism (36).

5. The flip structure for high-altitude flaw detection of power transmission lines according to claim 1, characterized in that: A plurality of travel rollers (4) are mounted on the fixed frame (1).

6. The flip structure for high-altitude flaw detection of power transmission lines according to claim 1, characterized in that: The hinge points of the lower movable part (33) and the fixed part (31) are relatively located above the X-ray machine (200).

7. The flip structure for high-altitude flaw detection of power transmission lines according to claim 1, characterized in that: The hinge points of the lower movable part (33) and the fixed part (31) are relatively located in the middle of the X-ray machine (200).

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