Traction network hanging structure, power supply loop traction device and shield tunnel system

Abstract

The invention relates to the field of urban rail transportation traction networks and provides a traction network hanging structure. The traction network hanging structure comprises a first connecting piece, two second connecting pieces and two third connecting pieces arranged at the two ends of the first connecting pieces correspondingly. According to the traction network hanging structure, the problem that in the prior art, due to limitation of a mounting space, mounting difficulty is large. The invention further provides a power supply loop traction device and a shield tunnel system. The power supply loop traction device comprises a traction network and the traction network hanging structure, wherein the traction network is hung on the traction network hanging structure. The power supply loop traction device adopts the traction network hanging structure, so that hanging of the traction network becomes easier. The shield tunnel system comprises a shield segment, a groove channel pre-embedded in the shield segment and the power supply loop traction device. The power supply loop traction device is mounted on the lower portion of the shield segment. According to the shield tunnel system, the problem that the hanging structure is difficult to mount when the discontinuous groove channel exists is solved through fixing pieces.

Description

technical field [0001] The invention relates to the field of urban rail transit traction nets, in particular to a traction net suspension structure, a power supply circuit traction device and a shield tunnel system. Background technique [0002] The diameter of the urban rail transit shield tunnel is a 5400mm circular structure, and in the case of a civil engineering error of 100mm, the maximum space in the tunnel is 5200mm. In the fixed traction network, the height of the traction network wire from the rail surface is 4040mm (that is, the pantograph height), the track bed height is 760mm. The actual space given to the suspension structure of the traction net is 5200-4040-760=400mm. [0003] On the one hand, the rear anchor bolt fixing structure adopted in the prior art cannot be connected with the pre-embedded channel. On the other hand, since the rear anchor bolt is fixed vertically at the curved position, the suspension structure needs to be adjusted by using inclined sp...

AI Technical Summary

Problems solved by technology

[0003] On the one hand, the rear anchor bolt fixing structure adopted in the prior art cannot be connected with the pre-embedded channel. On the other hand, since the rear anchor bolt is fixed vertically at the curved position, the suspension structure needs to be adjusted by using inclined spacers. It can ensure that the traction net is flush with the rail surface, and the vertical fixing method takes up a lot of space, which further reduces the installation space of the traction net suspension structure and increases the difficulty of installation

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