Parallel Catenary Erection Vehicles
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Solution Overview
Problem
Existing methods for erecting electrical catenary sections are inefficient, leading to prolonged track occupancy and disruption of rail traffic during installation and maintenance.
Innovation Solution
A method involving multiple vehicles and machines that work in parallel to minimize track occupancy, including a work carriage for transporting foundation bodies, piling machines for anchoring masts, assembly vehicles for connecting masts, and laying machines for continuous installation of contact and support cables under final tension.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional sequential methods are used for erecting catenary sections, then each operation can be performed with simple equipment, but track occupancy time is prolonged and rail traffic is disrupted
Solution Approach 1:
The catenary erection process is divided into distinct functional modules: foundation body installation by piling machines, mast assembly by assembly vehicles, and contact wire/suspension cable installation by laying machines. Each module operates independently on its own transport vehicle, allowing parallel execution of multiple operations simultaneously, thereby reducing total track occupancy time while maintaining operational simplicity for each individual module.
2Productivity
If multiple vehicles work in parallel to minimize track occupancy, then erection efficiency is improved, but device complexity increases
Solution Approach 1:
Each transport vehicle is designed as a multi-functional unit that can perform multiple operations. For example, assembly vehicles can both transport mast sections and perform the actual assembly operations. The laying machines can handle both contact wire and suspension cable installation. This multi-functionality reduces the total number of specialized vehicles needed while maintaining parallel operation capabilities, thus improving productivity without proportionally increasing device complexity.
Data Source
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Figure 5~7
AI summary
The invention relates to a method for erecting an electrical overhead line in a section composed of a number of overhead line masts (6). Various vehicles and machines (22, 26) are used during several line obstructions: a) to position foundations and bed them in, b) to grip overhead line masts (6) and connect them to the foundations, c) to connect a feeder and a return wire to the overhead line masts (6), to then mount an overhead wire (24) and a messenger wire (25) which are connected to a pulley-type tensioning assembly at the end of the section.