A device and method for detecting crimping defects in tension clamps

Abstract

A device and method for detecting crimp defects in tension clamps are disclosed. The device includes a detection chamber with an X-ray machine and an imaging plate. Hanging arms are provided on both sides of the detection chamber, and each hanging arm is equipped with a traveling wheel capable of hanging on a power transmission cable. In this invention, a positioning plate has an inlet groove for the power transmission cable to approach its center. When the traveling wheel is attached to the power transmission cable, a lifting mechanism controls the positioning plate to move out of the detection chamber, allowing the power transmission cable to enter the inlet groove and move closer to the center of the positioning plate. Then, a drive component controls the rotation of a rotating ring fitted on the outer circumference of the positioning plate, enabling the X-ray machine and imaging plate on the rotating ring to rotate synchronously 360 degrees around the tension clamp on the power transmission cable. This allows for comprehensive, blind-angle detection and imaging of the tension clamp. Simultaneously, during the entire detection process, the power transmission cable remains within the inlet groove and the wheel grooves, which effectively limit the position of the power transmission cable and prevent the equipment from detaching from the cable.

Description

Technical Field

[0001] This invention relates to the field of power transmission line testing technology, specifically to a device and method for detecting defects in tension clamp crimping. Background Technology

[0002] In existing technologies, high-voltage transmission lines are typically erected using elevated power cables to facilitate power transmission. The ends of the transmission cables are usually connected to the elevated towers via tension clamps. However, due to the large spans between the elevated towers, the tension clamps bear extremely high stresses. Furthermore, under prolonged outdoor use, tension clamps may develop cracks, loosen, or deform. Therefore, to ensure the stability of power transmission, frequent inspections of the tension clamps are necessary.

[0003] The inspection of tension clamps typically involves transporting the inspection equipment to the cable, then automatically moving the equipment to the vicinity of the clamp, and using an X-ray machine and detector to inspect and photograph it. However, the inspection and photographing angle is singular, resulting in inaccurate information and potentially distorted defect assessments. To address these issues, existing technologies have developed solutions such as those provided in Reference 1.

[0004] Reference 1: Chinese patent with publication number CN117783159A;

[0005] Reference 1 discloses a testing fixture and method for detecting live tension clamps on climbing lines. The fixture includes a testing device for detecting defects in the tension clamps using X-rays, a bracket device, and an adjustment device. Two bracket devices are respectively positioned at opposite ends of the adjustment device. The testing device is connected to the adjustment device and located below it. This invention, through a specifically designed adjustment mechanism, enables adjustment of the distance between the tension clamp and the detector, as well as the shooting angle between the tension clamp and the X-ray machine. This allows for defect imaging detection at different angles from the same location, solving the problem of inaccurate defect size acquisition and resulting in distorted judgments when the direction of the crack defect aligns with the X-ray direction.

[0006] However, due to the positional limitation of the deflection axis, the detector is always located above the tension clamp, which limits the detector and X-ray machine from rotating 360 degrees around the tension clamp. Therefore, there is still a blind spot in the detection and imaging angle of the tension clamp. Summary of the Invention

[0007] The purpose of this invention is to provide a device and method for detecting crimping defects in tension clamps. The detector and X-ray machine can rotate 360 ​​degrees around the tension clamp, so there is still a blind spot in the shooting angle of the tension clamp detection.

[0008] To address the shortcomings of the aforementioned technical problems, the present invention adopts the following technical solution: a tension clamp crimping defect detection device, comprising a detection box having an X-ray machine and an imaging plate, with hanging arms on both sides of the detection box, each hanging arm having a traveling wheel capable of being hung on a power transmission cable, and the detection box having a lifting mechanism capable of controlling the X-ray machine and imaging plate to enter or exit the detection box, as well as a rotating mechanism for driving and controlling the X-ray machine and imaging plate to rotate synchronously around the tension clamp;

[0009] The rotating mechanism includes a positioning disk, a rotating ring rotatably sleeved on the outer circumference of the positioning disk, and a drive assembly for driving the rotating ring to rotate. The positioning disk and the drive assembly are both fixed to the lifting mechanism. The X-ray machine and the imaging plate are both set on one end face of the rotating ring and surround the center of the positioning disk. The outer circumference of the positioning disk is provided with an inlet groove for the power transmission cable to approach its center. The inlet groove and the wheel grooves of the two traveling wheels are on the same vertical plane. The rotating ring is provided with an avoidance groove to avoid the inlet groove.

[0010] As a further optimization of the tension clamp crimping defect detection device of the present invention, the lifting mechanism includes a transmission rod that is rotatably disposed laterally inside the detection box, a lead screw that is rotatably disposed vertically inside the detection box, and a lifting platform that is screwed on the lead screw and cannot be rotated. The positioning plate and the drive assembly are both fixed on the lifting platform. The transmission rod and the lead screw are driven by bevel gears. Both ends of the transmission rod extend outside the detection box, and the ends extending outside the detection box are fitted with gear rings. Gears are rotatably disposed on the upper ends of both sides of the detection box. The gear rings and gears are connected by a toothed belt drive. A guide block that slides vertically is provided on the hook arm. The traveling wheel is rotatably connected to the upper part of the guide block through a rotating shaft. The lower part of the guide block is provided with multiple teeth that mesh with the gears.

[0011] As a further optimization of the tension clamp crimping defect detection device of the present invention, the lifting mechanism includes a lifting platform and a hydraulic cylinder, the hydraulic cylinder being fixed inside the detection box, and the lifting platform being fixed on the output end of the hydraulic cylinder.

[0012] As a further optimization of the tension clamp crimping defect detection device of the present invention, the drive assembly includes two shaft seats arranged side by side on the lifting platform. Each shaft seat is rotatably connected to a drive shaft. A rotating ring is located between the two drive shafts. Teeth are evenly distributed on the outer circumference of the rotating ring. A drive gear that meshes with the teeth is provided at one end of the drive shaft near the rotating ring. A power unit that drives the two drive shafts is provided on the lifting platform.

[0013] As a further optimization of the tension clamp crimping defect detection device of the present invention, the X-ray machine and the imaging plate are both set on one end face of the rotating ring through a connecting frame, and the connecting frame with the imaging plate is equipped with a counterweight.

[0014] As a further optimization of the tension clamp crimping defect detection device of the present invention, the positioning plate is provided with a clearance hole, which is connected to the inlet slot.

[0015] As a further optimization of the tension clamp crimping defect detection device of the present invention, the hanging arm is provided with a vertical sliding groove, the guide block is slidably disposed in the sliding groove, and limit grooves are provided on both sides of the sliding groove, and the guide block is provided with a limit block slidably disposed in the limit groove.

[0016] As a further optimization of the tension clamp crimping defect detection device of the present invention, the hanging arm is composed of a vertical part and a horizontal part, the sliding groove is opened in the vertical part, the vertical part is connected to the detection box, and the horizontal part is provided with hooks.

[0017] As a further optimization of the tension clamp crimping defect detection device of the present invention, a return spring is provided between the guide block and the bottom wall of the slide groove.

[0018] A method for detecting crimping defects in tension clamps, using the aforementioned detection device to inspect tension clamps on power transmission cables, includes the following steps:

[0019] 1) Lift the testing box so that the two wheels on the testing box are attached to the power transmission cable;

[0020] 2) When the traveling wheel is stably mounted and the power transmission cable is behind the positioning plate, control the detection box to move to the vicinity of the tension clamp to be tested;

[0021] 3) The drive component drives the rotating ring to rotate, so that the X-ray machine and the imaging plate rotate synchronously around the tension clamp, and X-ray inspection is performed on the tension clamp during rotation;

[0022] 4) After the test is completed, the test box is lowered from the power transmission cable.

[0023] The present invention has the following beneficial effects:

[0024] 1. In this invention, the positioning disk is provided with an inlet groove for the power transmission cable to approach its center. When the traveling wheel is attached to the power transmission cable, the lifting mechanism controls the positioning disk to move out of the detection box, so that the power transmission cable enters the inlet groove and approaches the center of the positioning disk. Then, the drive component controls the rotating ring sleeved on the outer circle of the positioning disk to rotate, so that the X-ray machine and imaging plate on the rotating ring can rotate synchronously 360 degrees around the tension clamp on the power transmission cable, thereby realizing the detection and imaging of the tension clamp without blind spots. At the same time, during the entire detection process, the power transmission cable is located in the inlet groove and the wheel groove of the traveling wheel. The inlet groove and the wheel groove can limit the position of the power transmission cable and effectively prevent the equipment from falling off the power transmission cable.

[0025] II. In a preferred embodiment of the present invention, the traveling wheel slides on the mounting arm. In the initial state, the traveling wheel is located in the lower middle part of the mounting arm. When the traveling wheel is attached to the power transmission cable, the entire device will descend relative to the traveling wheel due to its own gravity, so that the traveling wheel is located at the upper end of the mounting arm. The present invention transmits the kinetic energy generated by the vertical displacement of the traveling wheel to the lead screw through the moving mechanism, so that it rotates. The rotation of the lead screw controls the lifting platform to carry the imaging plate and X-ray machine into or out of the detection box. Compared with the lifting platform being driven by electrical equipment, the purely mechanical moving mechanism has a controllable and stable operating state under high voltage power environment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the detection device of the present invention;

[0027] Figure 2 This is a schematic cross-sectional view of the detection device of the present invention. Figure 1 ;

[0028] Figure 3 for Figure 2 A magnified view of the structure at point A in the middle;

[0029] Figure 4 for Figure 2 A magnified schematic diagram of the structure at point B in the middle;

[0030] Figure 5 This is a top view of the detection device of the present invention after the cover is removed;

[0031] Figure 6 This is a schematic cross-sectional view of the detection device of the present invention. Figure 2 ;

[0032] Reference numerals in the attached diagram: 1. Inspection box body; 2. Box cover; 3. Traveling wheel; 4. Hook arm; 401. Vertical part; 402. Horizontal part; 403. Guide block; 404. Limiting block; 405. Slide groove; 406. Limiting groove; 5. Hook; 6. Return spring; 7. Lifting mechanism; 701. Gear; 702. Toothed belt; 703. Gear ring; 704. L-shaped fixing bracket; 705. Lead screw; 706. Second bevel gear; 707. Transmission rod; 708. 709. First bevel gear, 710. Guide rod, 710. Lifting platform, 8. Rotating mechanism, 801. Rotating ring, 802. Cable inlet groove, 803. Positioning plate, 804. Shaft seat, 805. Transmission chain, 806. Drive rotary motor, 807. Sprocket, 808. Clearance hole, 809. Transmission shaft, 810. Drive gear, 811. Clearance groove, 10. Travel motor, 11. Imaging plate, 12. X-ray machine, 13. Connecting frame, 14. Counterweight. Detailed Implementation

[0033] The following will refer to the appendices in the embodiments of the present invention. Figure 1-6The technical solutions in the embodiments of the present invention will be clearly and completely described. Parts not explicitly described in the following embodiments of the present invention, such as the configuration, control, and power supply of the hydraulic cylinder, motor, walking motor 10, drive rotary motor 806, X-ray machine 12, and imaging plate 11, are all prior art and are considered to be prior art known or should be known by those skilled in the art.

[0034] Example 1

[0035] This embodiment provides a device for detecting defects in tension clamps, including a detection housing 1. The detection housing 1 is equipped with an X-ray machine 12 and an imaging plate 11 for detecting tension clamps. Both sides of the detection housing 1 are equipped with hanging arms 4, each with wheels 3 that can be attached to power transmission cables. The wheels 3 are electrically driven. A drone lifts the detection housing 1, attaching the wheels 3 to the power transmission cable. By controlling the rotation of the wheels 3, the device moves along the power transmission cable, carrying the detection housing 1 to the vicinity of the tension clamp. By positioning the tension clamp between the X-ray machine 12 and the imaging plate 11, the tension clamp is imaged and inspected.

[0036] In this embodiment, when not in use, the X-ray machine 12 and the imaging plate 11 are located in the inspection box 1, which is a rectangular box with a lid 2. The inspection box 1 facilitates the storage and transportation of the X-ray machine 12 and the imaging plate 11, eliminating the need for a specially designed storage and transportation box for the entire device. The inspection box 1 contains a lifting mechanism 7 and a rotating mechanism 8. The rotating mechanism 8 is fixed to the lifting mechanism 7, and the X-ray machine 12 and the imaging plate 11 are fixed to the rotating mechanism 8. When inspection is required, the lifting mechanism 7 can raise the X-ray machine 12 and the imaging plate 11 to the same horizontal level as the tension clamp. After raising, the device moves to the vicinity of the tension clamp, positioning it between the X-ray machine 12 and the imaging plate 11. At this time, the rotating mechanism 8 can drive and control the X-ray machine 12 and the imaging plate 11 to rotate 360 ​​degrees around the tension clamp, thereby enabling comprehensive inspection and imaging of the tension clamp without blind spots. Full-angle imaging provides a complete image of the tension clamp's condition, improving the accuracy of the judgment based on the imaging. The judgment method here is based on existing technology, and will not be described in detail here.

[0037] In this embodiment, the rotating mechanism 8 includes a positioning disk 803, a rotating ring 801 rotatably sleeved on the outer circumference of the positioning disk 803, and a driving assembly for driving the rotating ring 801 to rotate. Both the positioning disk 803 and the driving assembly are fixed to the lifting mechanism 7. To enable the rotating ring 801 to rotate around the positioning disk 803, an annular groove is formed on the outer circumference of the positioning disk 803. The inner diameter of the rotating ring 801 is the same as the diameter of the annular groove. The rotating ring 801 is rotatably sleeved within the annular groove of the positioning disk 803, thus enabling it to rotate around the center of the positioning disk 803. The X-ray machine 12 and the imaging plate 11 are both mounted on one end face of the rotating ring 801 and surround the center of the positioning disk 803 via a connecting frame 13. When the drive assembly drives the rotating ring 801 to rotate, the X-ray machine 12 and the imaging plate 11 will also rotate synchronously. At this time, an annular inspection space will be formed between the X-ray machine 12 and the imaging plate 11. As long as the tension clamp is placed in this annular inspection space, the X-ray machine 12 and the imaging plate 11 can rotate around the tension clamp 360 degrees, thereby enabling the tension clamp to be inspected and photographed without blind spots.

[0038] In this embodiment, in order to enable the tension clamp to be located within the annular inspection space, an inlet groove 802 is provided on the positioning plate 803 to allow the power transmission cable to approach its center. The width of the inlet groove 802 is the same as the diameter of the power transmission cable. The inlet groove 802 opens upward and is on the same vertical plane as the grooves of the two traveling wheels 3. An avoidance groove 811 is provided on the rotating ring 801 to avoid the inlet groove 802. When the traveling wheel 3 is attached to the power transmission cable, the lifting mechanism 7 controls the positioning plate 803 to rise and move out of the detection box 1, so that the power transmission cable enters the inlet groove 802 and moves closer to the center of the positioning plate 803. Then, the drive component controls the rotating ring 801 sleeved on the outer circle of the positioning plate 803 to rotate, so that the X-ray machine 12 and the imaging plate 11 on the rotating ring 801 can rotate synchronously 360 degrees around the tension clamp on the power transmission cable, thereby realizing the detection and imaging of the tension clamp without blind spots. At the same time, during the entire detection process, the power transmission cable is located in the inlet groove 802 and the wheel groove of the traveling wheel 3. The inlet groove 802 and the wheel groove can limit the position of the power transmission cable and effectively prevent the equipment from falling off the power transmission cable.

[0039] In this embodiment, the drive assembly includes two bearing seats 804 arranged side by side on the lifting platform 710. Each bearing seat 804 is rotatably connected to a drive shaft 809. A rotating ring 801 is located between the two drive shafts 809. Teeth are evenly distributed on the outer circumference of the rotating ring 801. A drive gear 810, meshing with the teeth, is located at the end of the drive shaft 809 near the rotating ring 801. A power unit is provided on the lifting platform 710 to drive the two drive shafts 809. The power unit controls the rotation of the two drive shafts 809. The rotation of the drive shafts 809 causes the drive gear 810 to mesh with the teeth on the outer circumference of the rotating ring 801, thereby controlling the rotation of the rotating ring 801. It should be noted that when one drive gear 810 disengages from the teeth on the outer circumference of the rotating ring 801 due to the passage of the clearance groove 811, the other drive gear 810 is always in a state of meshing with the teeth on the outer circumference of the rotating ring 801.

[0040] In this embodiment, the power unit has two structures. Structure 1: The power unit includes two motors fixed on the lifting platform 710. Each drive shaft 809 is connected to the output shaft of one motor. The rotation of the motor drives the drive shaft 809 to rotate, thereby causing the rotating ring 801 to rotate. Structure 2: The power unit includes a drive rotary motor 806 and a transmission chain 805. Each drive shaft 809 is fitted with a sprocket 807. The transmission chain 805 is fitted on the two sprockets 807 and meshes with them for transmission. The output shaft of the drive rotary motor 806 is connected to one of the drive shafts 809.

[0041] In this embodiment, the arm 4 consists of a vertical part 401 and a horizontal part 402. The vertical part 401 is connected to the detection box 1, and the horizontal part 402 is provided with hooks 5 for attaching to the UAV. In this embodiment, a walking motor 10 for driving the walking wheels 3 is fixedly installed on the vertical part 401, and the output shaft of the walking motor 10 is coaxially connected to the corresponding walking wheel 3.

[0042] In this embodiment, the lifting mechanism 7 includes a lifting platform 710 and a hydraulic cylinder. The hydraulic cylinder is fixed inside the detection box 1, and the lifting platform 710 is fixed on the output end of the hydraulic cylinder. The lifting platform 710 is driven to rise and fall by the hydraulic cylinder.

[0043] In this embodiment, a counterweight 14 is provided on the connecting frame 13 with the imaging plate 11. The counterweight 14 is mainly to ensure the gravity balance of the equipment, because the X-ray machine 12 in this embodiment is relatively heavy, and the counterweight 14 is used to offset the weight of the X-ray machine 12.

[0044] This invention also provides a method for detecting crimping defects in tension clamps, which uses the aforementioned detection device to detect tension clamps on power transmission cables, and includes the following steps:

[0045] 1) The drone is attached to the hook 5 on the detection device via the hook, and the detection box 1 is lifted to a position above the power transmission cable by a certain height, so that the groove of the wheel 3 is aligned with the power transmission cable. Then the drone descends and the two wheels 3 on the detection box 1 are attached to the power transmission cable.

[0046] 2) When the walking wheel 3 is hung on the power transmission cable, the lifting mechanism 7 is controlled to run, and the positioning plate 803 is raised, so that the power transmission cable enters the inlet groove 802. When the power transmission cable is in the inlet groove 802, the drive motor 10 is started, and the walking wheel 3 is controlled to rotate. The detection box 1 is moved to the vicinity of the tension clamp to be tested, so that the tension clamp is located between the X-ray machine 12 and the imaging plate 11, ready for testing.

[0047] 3) Start the test. The power unit drives the transmission shaft 809 to rotate, which causes the drive gear 810 to rotate the rotating ring 801. According to the requirements, the X-ray machine 12 and the imaging plate 11 are controlled to rotate to a certain angle to perform imaging test on the tension clamp. After the test is completed, other tension clamps to be tested can be moved to the vicinity for further testing.

[0048] 4) After all the tests are completed, control the lifting mechanism 7 to lower the positioning plate 803 into the test box 1, and then use a drone to lift the equipment down from the power transmission cable.

[0049] The above are the basic embodiments of the present invention. Further improvements, optimizations, and limitations can be made based on the above to obtain the following embodiments:

[0050] Example 2

[0051] This embodiment is an improvement on the detection device based on Embodiment 1. Its main structure is the same as in Embodiment 1, but the improvements are: the traveling wheel 3 in this embodiment can slide along the height direction of the hook arm 4, and the structure of the lifting mechanism 7 in this embodiment differs from that in Embodiment 1. In this embodiment, the lifting mechanism 7 can drive the X-ray machine 12 and the imaging plate 11 to rise into or out of the detection chamber 1 according to the position change of the traveling wheel 3.

[0052] In this embodiment, a vertical groove 406 is provided on the vertical part 401 of the mounting arm 4. A guide block 403 is provided in the groove 406 and slides along the height direction of the groove 406. The traveling wheel 3 is rotatably connected to the upper part of the guide block 403 through a rotating shaft, so that it can slide up and down. The traveling motor 10 that drives the traveling wheel 3 to rotate is fixed on the guide block 403. In the initial state, the traveling wheel 3 is located in the lower middle part of the mounting arm 4. When the traveling wheel 3 is hung on the power transmission cable, the entire device will descend relative to the traveling wheel 3 due to its own weight, so that the traveling wheel 3 is located in the upper part of the mounting arm 4.

[0053] In this embodiment, to control the lifting and lowering of the X-ray machine 12 and the imaging plate 11 via the sliding wheels 3, the lifting mechanism 7 also includes a transmission rod 707 horizontally rotatably mounted within the detection chamber 1 and a lead screw 705 vertically rotatably mounted within the detection chamber 1. The lifting platform 710 is non-rotatably screwed onto the lead screw 705. A first bevel gear 708 is fixedly sleeved on the transmission rod 707, and a second bevel gear 706, meshing with the first bevel gear 708, is fixedly sleeved on the lead screw 705.

[0054] The transmission rod 707 and the lead screw 705 can rotate and be coupled through the first bevel gear 708 and the second bevel gear 706. As long as the walking wheel 3 slides up and down, it drives the transmission rod 707 to rotate, which can control the rotation of the lead screw 705. This allows the lead screw 705 to be threadedly driven with the lifting platform 710, thereby controlling the lifting platform 710 to lift the wire machine 11 and the imaging plate 11.

[0055] In this embodiment, to control the transmission rod 707 to rotate as it slides up and down with the traveling wheel 3, both ends of the transmission rod 707 extend outside the detection box 1, and gear rings 703 are fitted onto the ends extending outside the detection box 1. Gears 701 are rotatably mounted on the upper ends of both sides of the detection box 1. The lower part of the guide block 403 has multiple teeth that mesh with the gears 701. The gear rings 703 and the gears 701 are connected by a toothed belt 702. When the traveling wheel 3 slides up and down, it is achieved by the movement of the guide block 403. The movement of the guide block 403 meshes with the gears 701, thereby causing the gears 701 to rotate. The rotation of the gears 701 causes the gear rings 703 to rotate through the toothed belt 702, thus achieving the effect of controlling the rotation of the transmission rod 707.

[0056] In this embodiment, in order to ensure that the guide block 403 slides in the slide groove 406 and ensures its stable sliding, a limiting groove 405 is provided on both sides of the slide groove 406, and the guide block 403 is provided with a limiting block 404 that slides in the limiting groove 405.

[0057] In this embodiment, to enable the lead screw 705 to rotatably mount inside the detection chamber 1, an L-shaped fixing bracket 704 is provided at the bottom of the detection chamber 1. The vertical part of the L-shaped fixing bracket 704 is fixed to the bottom of the detection chamber 1, and the lead screw 705 rotates vertically on the horizontal part of the L-shaped fixing bracket 704. Meanwhile, to ensure that the lifting platform 710 is non-rotatably mounted on the lead screw 705, in this embodiment, a guide rod 709 is vertically slidably mounted on the lifting platform 710, and the lower end of the guide rod 709 is fixedly connected to the bottom of the detection chamber 1.

[0058] Compared to the electrically driven lifting platform 710 in Embodiment 1, the lifting mechanism 7 in this embodiment has a purely mechanical structure that allows for controllable and stable operation under high-voltage power conditions and has a long service life.

[0059] In this embodiment, a reset spring 6 is provided between the guide block 403 and the bottom wall of the slide 405. The reset spring 6 can increase the upward sliding force of the guide block 403 and provide assistance when the X-ray machine 12 and the imaging plate 11 fall into the detection box 1.

[0060] Example 3

[0061] This embodiment is an improvement on the detection device based on Embodiment 1. Its main structure is the same as Embodiment 1, but the improvement lies in the following: a clearance hole 808 is provided on the positioning plate 803, which communicates with the cable inlet groove 802. The clearance hole 808 is provided to avoid some auxiliary devices, such as vibration dampers, that are attached to the power transmission cable.

[0062] The specific embodiments of the present invention have been described above. It should be understood that the present invention 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 essence of the present invention.

Claims

1. A device for detecting defects in tension clamp crimping, comprising a detection box (1) having an X-ray machine (12) and an imaging plate (11), wherein both sides of the detection box (1) are provided with hanging arms (4), and each hanging arm (4) is provided with a traveling wheel (3) capable of being hung on a power transmission cable, characterized in that: The detection chamber (1) is equipped with a lifting mechanism (7) that can control the X-ray machine (12) and the imaging plate (11) to enter or leave the detection chamber (1), and a rotating mechanism (8) that drives and controls the X-ray machine (12) and the imaging plate (11) to rotate synchronously around the tension clamp. The rotating mechanism (8) includes a positioning disk (803), a rotating ring (801) rotatably sleeved on the outer circle side of the positioning disk (803), and a driving component for driving the rotating ring (801) to rotate. The positioning disk (803) and the driving component are both fixed on the lifting mechanism (7). The X-ray machine (12) and the imaging plate (11) are both set on one end face of the rotating ring (801) and surround the center of the positioning disk (803). The outer circle side of the positioning disk (803) is provided with an inlet groove (802) for the power transmission cable to approach its center. The inlet groove (802) and the wheel grooves of the two walking wheels (3) are on the same vertical plane. The rotating ring (801) is provided with an avoidance groove (811) to avoid the inlet groove (802). The lifting mechanism (7) includes a lifting platform (710) and a hydraulic cylinder. The hydraulic cylinder is fixed inside the detection box (1), and the lifting platform (710) is fixed on the output end of the hydraulic cylinder. The drive assembly includes two bearing seats (804) arranged side by side on the lifting platform (710). Each bearing seat (804) is rotatably connected to a drive shaft (809). A rotating ring (801) is located between the two drive shafts (809). Teeth are evenly distributed on the outer circumference of the rotating ring (801). A drive gear (810) that meshes with the teeth is provided at one end of the drive shaft (809) near the rotating ring (801). A power unit that drives the two drive shafts (809) is provided on the lifting platform (710).

2. The device for detecting crimping defects in tension clamps according to claim 1, characterized in that: The X-ray machine (12) and the imaging plate (11) are both set on one end face of the rotating ring (801) via a connecting frame (13), and the connecting frame (13) with the imaging plate (11) is provided with a counterweight (14).

3. The device for detecting crimping defects in tension clamps according to claim 1, characterized in that: The positioning disk (803) is provided with a clearance hole (808), which is connected to the inlet groove (802).

4. A method for detecting crimping defects in tension clamps, characterized in that, The detection device described in any one of claims 1-3 is used to detect the tension clamps on power transmission cables, comprising the following steps: 1) Lift the test box (1) so that the two wheels (3) on the test box (1) are attached to the power transmission cable; 2) When the walking wheel (3) is stably hung and the power transmission cable is located on the positioning plate (803), control the detection box (1) to move to the vicinity of the tension clamp to be tested; 3) The drive assembly drives the rotating ring (801) to rotate, so that the X-ray machine (12) and the imaging plate (11) rotate synchronously around the tension clamp, and X-ray inspection is performed on the tension clamp during rotation; 4) After the test is completed, the test box (1) is lowered from the power transmission cable.

Images