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Crawler traveling type surface defect detection device for crane jib

A defect detection and crane technology, applied in the direction of material magnetic variables, etc., can solve problems such as false detection and missed detection, and achieve the effects of preventing fracture accidents, ensuring safety, and fast and efficient detection

Pending Publication Date: 2022-04-08
CHINA ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] An embodiment of the present invention provides a crawler-type surface defect detection device for a crane arm to solve the problem of false detection and missed detection easily caused by manual detection in the prior art

Method used

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  • Crawler traveling type surface defect detection device for crane jib
  • Crawler traveling type surface defect detection device for crane jib
  • Crawler traveling type surface defect detection device for crane jib

Examples

Experimental program
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Effect test

Embodiment 1

[0030] Such as figure 1 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.

[0031] Embodiment 1 of the present invention discloses a crawler-type surface defect detection device for a crane boom, which is used to detect the boom 1 with the above cross-sectional shape. Such as Figure 1-15 As shown, the surface defect detection device includes: a top detection assembly, a side and bottom detection assembly, and two crawler-type travel assemblies.

[0032] Wherein, the top detection assembly includes: a first support cavity 2 and two flat detection pieces. Two movable flat detection parts are symmetrically arranged on the outer surface of the side wall of the front end or the rear end of the first support cavity 2 . The front and rear described in the embodiment of the present invention refer to the length d...

Embodiment 2

[0038] Embodiment 2 of the present invention discloses a crawler belt traveling surface defect detection device of a crane arm. Such as Figure 1-15 As shown, the crawler-tracked surface defect detection device of the second embodiment is the same as that of the first embodiment. In addition, Embodiment 2 specifically discloses an implementation structure of the flat panel detection component.

[0039]Specifically, the flat panel detection part includes: a first magnetic sensor array 5 . The first magnetic sensitive sensor array 5 is arranged in the first sensor box 6 , and specifically can be sealed in the first sensor box 6 by epoxy resin. First magnets 7 are respectively arranged in the grooves at the front and rear ends of the first sensor box 6 , and can be specifically sealed in the first sensor box 6 by epoxy resin. After the two first sensor boxes 6 are aligned, the first magnetic sensor array 5 in the two first sensor boxes 6 extends from the left side to the right...

Embodiment 3

[0045] Embodiment 3 of the present invention discloses a crawler belt traveling surface defect detection device of a crane boom. Such as Figure 1-15 As shown, the crawler-tracked 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 and bottom detection components.

[0046] Specifically, the U-shaped detection part includes: a plurality of second magnetic sensor arrays 17 . Each second magnetic sensitive sensor array 17 is disposed in each second sensor box 18 , and specifically can be sealed in the second sensor box 18 by epoxy resin. Second magnets 19 are respectively arranged in the grooves at the front and rear ends of each second sensor box 18 , and specifically can be sealed in the second sensor box 18 by epoxy resin. A plurality of second sensor boxes 18 are sequentially hinged to form a U shape. The detection principles of the second magneti...

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PUM

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Abstract

The invention discloses a crawler traveling type surface defect detection device for a crane jib, which comprises a top detection assembly, a bottom detection assembly and a bottom detection assembly, the top detection assembly comprises a first supporting cavity and two flat plate detection pieces, and the two movable flat plate detection pieces are symmetrically arranged on the outer surface of the side wall of the front end or the rear end of the first supporting cavity; the side and bottom detection assembly comprises a U-shaped detection piece which is located below the first supporting cavity and can be contracted up and down and left and right, and the two ends of the U-shaped detection piece are connected with the first supporting cavity. Each crawler-type advancing assembly comprises a second supporting cavity, two crawler foot parts and at least one supporting wheel, the two second supporting cavities are connected with the outer surfaces of the side walls of the front end and the rear end of the first supporting cavity correspondingly, and the two crawler foot parts are connected to the left side and the right side of the bottom wall of the second supporting cavity correspondingly; the supporting wheel is arranged on the outer surface of the bottom wall of the second supporting cavity; in a detection state, the two flat plate detection pieces and the U-shaped detection piece define a detection ring. The device can realize full-automatic detection.

Description

technical field [0001] The invention relates to the technical field of crane arm defect detection, in particular to a crawler belt traveling surface defect detection device of a crane arm. 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 on the transmission line. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/85
Inventor 周威柴少磊万建成陈明江明毛吉贵吴念朋朱世民杨磊夏拥军宋泽明
Owner CHINA ELECTRIC POWER RES INST