An umbrella-shaped structure load-bearing maintenance bent frame

Abstract

The invention relates to an umbrella-shaped structure load-bearing maintenance framed bent which comprises a plurality of outer ring tensile beams connected end to end and a plurality of inner ring pressure-resistant beams connected end to end. One end of a hub radial beam is connected with the outer ring tensile beams, and the other end thereof is connected with the inner ring pressure-resistant beams. A platform antiskid base plate is laid on a plane formed by the outer ring tensile beams, the inner ring pressure-resistant beams and the hub radial beam. The umbrella-shaped structure load-bearing maintenance framed bent has the advantages that the outer ring tensile beams are mainly used for resisting tension, the inner ring pressure-resistant beams are mainly used for resisting pressure, the features that long and thin metal components are good in tensile strength and short and thick metal components are high in pressure resistant stability are given into full play, and the whole framed bent is reasonable in stress; parts are easy to disassemble, convenient to carry, uniform in specification and size, complete interchanging of components of different areas can be achieved, and assembling is facilitated; the strength at the center of the framed bent can be enhanced by an inner extension annular beam, and use safety is guaranteed.

Description

Technical field [0001] The invention relates to a bent frame, in particular to an umbrella-shaped structure load-bearing inspection and repair bent frame which is convenient for assembly and disassembly and has uniform force. Background technique [0002] One form of the existing bent frame used for high-altitude maintenance operations mainly includes an internal frame and a peripheral side frame. The frame generally has a tic-shaped structure, so in actual work, the frame of the tic-shaped structure often has a problem of poor stability; Moreover, when erecting the skeleton, it is generally necessary to fix the adjacent main beams with the connecting device respectively to achieve the purpose of connecting two adjacent main beams. In this way, the connecting device is needed as an auxiliary to help the main beams connect, increasing the number of main beams. The complexity of the connection reduces the stability of the skeleton; the other scheme adopts a modular triangular struc...

AI Technical Summary

Problems solved by technology

[0002] One form of the existing bent frame used for high-altitude maintenance operations mainly includes an internal frame and peripheral side frames. The frame is generally in the shape of a well-shaped structure, so in actual work, the frame of the well-shaped structure often has the problem of poor stability; Moreover, when setting up the skeleton, it is generally necessary to fix the adjacent main girders with the connecting device to achieve the purpose of connecting two adjacent main girders. In this way, it is necessary to use the connecting device as an auxiliary to help the main girders connect, increasing the gap between the main girders. The complexity of the joints reduces the stability of the skeleton; another scheme uses a modular triangular structure to form a bent skeleton, which has the advantages of good structural stability and good versatility of components, but there is also obvious structural self-weight bias. Large; large load margin; local stress concentration at the joint; high manufacturing difficulty; inconvenient disassembly and assembly; the overall deformation is difficult to meet the standard. The above two bents are common in flat pancake-like structures

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