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Nondestructive testing method for adapting to suspension arm through automatic telescopic obstacle avoidance

An automatic telescopic and non-destructive testing technology, applied in the direction of cranes, material magnetic variables, etc., can solve problems such as difficult detection and differences in the cross-sectional size of the boom, so as to prevent fracture accidents, ensure integrity status, and prevent missed and false detections Effect

Pending Publication Date: 2022-04-08
WUZHONG POWER SUPPLY COMPANY STATE GRID NINGXIA ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a non-destructive testing method for adapting the boom through automatic telescopic obstacle avoidance to solve the problem that the detection is difficult in the prior art due to the difference in the cross-sectional size of the booms with different numbers of sections.

Method used

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  • Nondestructive testing method for adapting to suspension arm through automatic telescopic obstacle avoidance
  • Nondestructive testing method for adapting to suspension arm through automatic telescopic obstacle avoidance
  • Nondestructive testing method for adapting to suspension arm through automatic telescopic obstacle avoidance

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Embodiment 1

[0031] Such as figure 2 As shown, the cross-sectional shape of the boom 1 of the existing mobile crane is mostly U-shaped, that is, the upper surface and two sides of the boom 1 are planes, and the lower surface is approximately an arc surface.

[0032] Embodiment 1 of the present invention discloses a non-destructive testing method for adapting a boom through automatic telescopic obstacle avoidance, which is used for testing the boom 1 with the above cross-sectional shape. Such as Figure 2-11 As shown, the vehicle-mounted surface defect detection device includes: a mobile vehicle 2, a square main frame installed on the mobile vehicle 2, and a top inspection assembly, two side inspection assemblies and a bottom inspection assembly installed on the main frame. The main body frame is formed by connecting the top plate 3, one side plate 4, bottom plate 5 and the other side plate 4 sequentially from end to end, specifically, it can be connected by screws. Each detection assemb...

Embodiment 2

[0044]Embodiment 2 of the present invention discloses a non-destructive testing method for adapting a boom through automatic telescopic obstacle avoidance, which is the same as the method in Embodiment 1. Such as Figure 2-11 As shown, the vehicle-mounted surface defect detection device of the second embodiment is the same as that of the first embodiment. In addition, Embodiment 2 also specifically discloses an implementation structure of the top detection component, specifically as follows:

[0045] The number of the first detection parts is two. Each first detecting element includes: a first magnetic sensor array 9 . Each first magnetic sensitive sensor array 9 is arranged in each first sensor box 10, such as Figure 7 It is shown that it has a raised space for accommodating, and specifically, it can be sealed in the first sensor box 10 by epoxy resin. First magnets 11 are respectively arranged in the grooves at the front and rear ends of each first sensor box 10 , which...

Embodiment 3

[0054] Embodiment 3 of the present invention discloses a non-destructive testing method for adapting a boom through automatic telescopic obstacle avoidance, which is the same as the method in Embodiment 1 or 2. Such as Figure 2-11 As shown, the vehicle-mounted surface defect detection device of Embodiment 3 is the same as that of Embodiment 1 or 2. In addition, Embodiment 3 specifically discloses an implementation structure of the side detection component.

[0055] The second detection part includes: a second magnetic sensor array 24 . The second magnetic sensitive sensor array 24 is arranged in the second sensor box 25 , and specifically can be sealed in the second sensor box 25 by epoxy resin. The first sensor box 10 is generally located between the second sensor boxes 25 on both sides. Second magnets 26 are respectively arranged in the grooves at the front and rear ends of the second sensor box 25 , and can be specifically sealed in the second sensor box 25 by epoxy res...

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Abstract

The invention discloses a nondestructive testing method for adapting to a suspension arm through automatic telescopic obstacle avoidance. The nondestructive testing method comprises a mobile vehicle, a square main body frame mounted on the mobile vehicle, and a top detection assembly, two side detection assemblies and a bottom detection assembly which are mounted on the main body frame, each detection assembly comprises one or more sensor boxes stretching towards the center position of the main body frame, guide wheels attached to the suspension arm are arranged at the bottoms of the sensor boxes, sensors are arranged in the sensor boxes, and the sensor boxes are connected to the main body frame through telescopic structures; comprising the following steps: S1, sleeving the initial position of a suspension arm with a detection assembly on a mobile vehicle; s2, driving the mobile vehicle to move along the extension direction of the suspension arm; s3, reducing the speed of the mobile vehicle through the deformation position of the suspension arm, and enabling the sensor box to pass through the deformation position after the sensor box slowly stretches out and draws back; and S4, continuously driving the mobile vehicle, and collecting detection data through a sensor until the detection is completed. According to the invention, through the deformation position of the suspension arm, the surface defect of the suspension arm can be fully automatically, rapidly and efficiently detected.

Description

technical field [0001] The invention relates to the technical field of crane arm defect detection, in particular to a non-destructive testing method for adapting a boom through automatic retraction and obstacle avoidance. Background technique [0002] Cranes are widely used in the construction of angle steel towers for transmission lines due to their convenient movement and flexible movements such as lifting, luffing, and slewing. As the main stress-bearing part of the crane, the boom is prone to structural defects due to the impact of alternating loads, fatigue, friction and wear, and corrosion, which will cause the crane boom to break due to the decrease in strength, and is the main cause of crane boom failure and fracture accidents. Therefore, it is of great significance to locate and detect the structural defects of the crane arm to effectively prevent the occurrence of crane arm fracture accidents and ensure the safety of the crane hoisting tower construction operation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/83B66C23/64B66C23/88
Inventor 朱世民周威陈明万建成毛吉贵江明柴少磊宋泽明吴念朋杨磊夏拥军陆晓军王晓康贾鹏马玉忠郑五洋王悦
Owner WUZHONG POWER SUPPLY COMPANY STATE GRID NINGXIA ELECTRIC POWER
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