UHV transmission line lattice spanning frame

Abstract

The invention discloses an extra-high voltage transmission line lattice type cross frame and belongs to the power transmission line cross frame technical field. The extra-high voltage transmission line lattice type cross frame comprises holding rod standard sections and six-way joints for connecting the holding rod standard sections; and the extra-high voltage transmission line lattice type cross frame further comprises tower crane standard sections and adapters for connecting the tower crane standard sections and the holding rod standard sections. According to the extra-high voltage transmission line lattice type cross frame of the invention, a plurality of kinds of tower crane standard sections with different cross sections and a plurality of groups of holding rod standard sections with different cross sections are connected together so as to form a lattice type structure; the cross sections of the standard sections are gradually decreased from bottom to top, and therefore, the requirements of the overall structure of the cross frame can be satisfied; and the six-way joints are adopted to connect the holding rod standard sections with different cross sections, the adapters are adopted to connect the holding rod standard sections and the tower crane standard sections, and therefore, the holding rod standard sections and the tower crane standard sections can be both used in the same cross frame.

Description

technical field [0001] The invention relates to the technical field of transmission line spanning frames, in particular to a grid-type spanning frame for ultra-high voltage transmission lines. Background technique [0002] In the construction of UHV transmission lines, it is often necessary to cross high-speed railways, electrified railways and important power lines, and spanning frames need to be erected in these cross-domains. [0003] In the prior art, the spanning frame is built by connecting and combining the standard section of the pole and the six links. For example, a large-scale lattice type spanning frame (publication number CN103532048A) disclosed by the Chinese invention patent, the spanning frame erected is The same standard pole holding standard section and six links are combined, but in the field practice, due to structural considerations, it is often necessary to use different specifications of pole holding standard sections on the same span frame, and differ...

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Problems solved by technology

[0003] In the prior art, the spanning frame is built by connecting and combining the standard section of the pole and the six links. For example, a large-scale lattice type spanning frame (publication number CN103532048A) disclosed by the Chinese invention patent, the spanning frame erected is The same standard pole holding standard section and six links are combined, but in the field practice, due to structural considerations, it is often necessary to use different specifications of pole holding standard sections on the same span frame, and different specifications of holding pole standard sections There is a problem that cannot connect between nodes

[0004] At the same time, due to structural considerations, in practice, tower crane standard sections are sometimes required to build spanning frames. Tower crane standard sections cannot be connected horizontally, so lattice spanning frames cannot be erected, so pole-holding standard sections are required. At the same time as the tower crane standard section, the lattice spanning frame is erected, but there is a problem that the pole-holding standard section and the tower crane standard section cannot be connected, which makes it impossible to meet the actual needs of the site

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