Hydraulic fabricated crossing structure

Abstract

The invention discloses a hydraulic fabricated crossing structure, which comprises a structure body, a safety net device, rotating arm mechanisms and hydraulic jacking mechanisms, wherein the structure body comprises a plurality of upright posts and beam components; the safety net device comprises a carrying rope, a circulating rope, a safety net, insulating stay bars and sling members; each rotating arm mechanism comprises a rotating arm and a magnetic docking device; and each hydraulic jacking mechanism comprises an oil station, an oil cylinder and a jacking platform. Stabilization of the structure body is achieved through stay wires; each upright post is stabilized by upper and lower layers of stay wires; four stay wires are unevenly distributed on each layer; the upper layer of stay wires are located at the lower parts of rotary assemblies of the upright posts; and the lower layer of stay wires are located close to the center positions of the waists of the upright posts. According to the hydraulic fabricated crossing structure, the shock resistance of the crossing structure is improved by the measures of optimizing the overall structure of the crossing structure, adopting a high-strength steel material, adding a buffer force reliever, reasonably arranging the stay wires and the like; meanwhile, lightweight, fabricated and automatic design is carried out; and the 'hydraulic fabricated crossing structure' can meet the requirements of field construction.

Description

【Technical field】 [0001] The invention relates to a spanning frame of a power transmission line, which belongs to the technical field of power line construction. 【Background technique】 [0002] In the construction of power grid power transmission and transformation projects, newly-built transmission lines often cross geographically with existing high-voltage transmission lines, railways, and expressways, and the ground wires of newly-built lines need to climb over the spanned objects. In order to ensure a safe distance between the ground wire and the spanned object, it is necessary to set up an insulating safety net between the two in advance. The safety net and its supporting devices are collectively referred to as spanning frames. [0003] The spanning frames adopted in the current spanning construction include moso bamboo spanning frame, cableway type spanning frame, frame body spanning frame and the like. These traditional crossing frames have some deficiencies. For ex...

AI Technical Summary

Problems solved by technology

These traditional crossing frames have certain deficiencies. For example, the bamboo crossing frame and the scaffolding crossing frame are suitable for occasions with low voltage levels, which are easily restricted by the terrain; The span between the brackets is large, and the slack of the ropeway decreases greatly after being subjected to impact loads, making it difficult to ensure the safety distance between the safety net and the spanned object; the automation level of the spanning frame is low, and its installation mostly relies on auxiliary lifting tools. The transportation volume is large, and the installation is not convenient enough

In addition, the traditional spanning frame has the problem of insufficient impact resistance

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