Construction technology of insulation structure of ground power supply sliding contact wire of electric flat car

Abstract

The invention discloses an insulation structure of a ground power supply sliding contact wire of an electric flat car and a construction technology thereof. Firstly, a layer of electro-insulating rubber of 2-5mm is additionally arranged at a contact port part of a pressing plate and a track; secondly, an insulation tube is sleeved on a foundation bolt, a phenolic aldehyde insulation plate is arranged between a steel washer of the foundation bolt and an insulation pressing plate; meanwhile, an elastic rubber base plate which is arranged below the track in the original design is reserved, and layers of insulation are formed between the insulation pressing plate and the track, between the insulation pressing plate and the bolt as well as between the track and a foundation; and finally, the design requirement of the insulation resistance of the track to the ground is also ensured. According to the insulation structure, a process of pouring the sulphur-bonded motar insulation foundation bolt is omitted, so the construction difficulty is greatly reduced; the construction quality and the progress are improved, and the construction technology is the insulation technology of a flat car track, which is more convenient, environmental-friendly, safer and more economic.

Description

technical field [0001] The invention relates to the insulation technology of the trolley line for ground power supply of a low-voltage electric flat car, in particular, it relates to the insulation structure and construction technology of the ground trolley line bolt and track. Background technique [0002] The KPDS type three-phase and KPD type single-phase low-voltage electric flat cars use ground trolley lines, and the flat car track that undertakes the load-bearing and trolley line tasks must have a ground insulation resistance greater than or equal to 0.5MΩ, which determines whether the flat car operates normally. key. In the existing design, the anchor bolts are poured into the reserved holes of the foundation with sulfur mortar to ensure that each anchor bolt is insulated from the ground; an elastic insulating backing plate is laid under the track and the pressure plate to ensure the insulation resistance of the track to the ground. Value greater than ≥ 0.5MΩ. [00...

AI Technical Summary

Problems solved by technology

[0005] At the same time, the present invention solves the complex technical problem of the existing ground trolley line insulation construction process, and provides a construction process for the ground power supply trolley line insulation structure of the electric flat car, omitting the need for pouring sulfur mortar to insulate the anchor bolts in the original process process, greatly reducing construction difficulty, improving construction quality and progress

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