Method and system of installation of a plurality of droppers of an overhead contact system section

Patent metadata

Field	Value
Publication number	US-11065982-B2
Application number	US-201816231590-A
Country	US
Kind code	B2
Filing date	Dec 23, 2018
Priority date	Jan 2, 2018
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

A method including measuring a distance between two successive supporting poles delimiting a section to be realized, inputting data into a computer programmed to output a layout plan indicating a position and a length for each dropper to install, preparing each dropper with a dedicated machine, moving a first platform along the section, which is equipped with a position unit and a marking device to set a mark on the contact wire at each position where a dropper is to installed, moving a second platform along the section, the second platform being loaded with the droppers that have been prepared, and fixing manually each dropper between the messenger wire and the contact wire in registration with a corresponding mark set on the contact wire.

First claim

The invention claimed is:

1. A system of installation of a plurality of droppers of an overhead contact system section, which comprises at least one contact wire and at least one messenger wire hung between two successive supporting poles delimiting the ends of said overhead contact system section, the system comprising:
a means of measuring a distance between the two successive supporting poles;
a computer programmed to output a layout plan indicating a position and a length for each dropper of the plurality of droppers to be installed based on inputted data, that comprises at least the distance measured by said means of measuring a distance;
a machine for preparing each dropper to be installed at the length thereof indicated in the layout plan output by said computer;
a first platform capable of moving along the overhead contact system section, the first platform being equipped with:
a position unit for determining the actual position of the first platform; and
a marking device to set a mark on the at least one contact wire, the marking device being capable of setting a mark on the at least one contact wire each time the position determined by said position unit corresponds to a position of a dropper of the plurality of droppers as indicated in the layout plan, the marking device comprising:
a paint container;
an actuated valve; and
a nozzle situated at the extremity of a mast so as to be in the vicinity of the at least one contact wire, so that, each time said valve is actuated, a spray of paint is applied through the nozzle onto the at least one contact wire, the marking device being actuated by said positioning unit each time the current position of said first platform is equal to the position of a dropper as indicated by the layout plan, which has been loaded into said positioning unit; and

a second platform capable of moving along the overhead contact system section and being loaded with the droppers that have been prepared.

2. A system according to claim 1 , wherein the overhead contact system section to be realized is of the type comprising:
one messenger wire and one contact wire; or
one messenger wire and two contact wires; or
two messenger wires and two contact wires,

wherein said computer is configured to output a layout plan corresponding to the type of the overhead contact system section to be realized, and wherein said machine is capable of manufacturing droppers corresponding to the type of the overhead contact system section to be realized.

3. A system according to claim 1 , wherein, when the overhead contact system section comprises two contact wires, said marking device marking each contact wire separately.

4. A system according to claim 1 , wherein said means of measuring a distance between the two successive supporting poles is placed on board said first platform and is operated automatically.

5. A system according to claim 1 , wherein said machine for preparing each dropper to be installed is placed onboard said second platform.

6. A system according to claim 1 , wherein said first and second platforms are arranged to constitute a single platform.

7. A system according to claim 1 , wherein said first platform is also equipped with a dedicated system that is able to apply a final tension to the at least one contact wire, the tension being applied on the at least one contact wire during movement of said first platform, the marks being then drawn on the at least one contact wire correctly stretched.

Assignees

• Alstom Transp Tech

Inventors

• Morvillo Ciro
• Massari Emanuele

Classifications

• B60M1/22

  Separate lines from which power lines are suspended, e.g. catenary lines, supporting-lines under tension · CPC title

• B60M1/28 Primary

  Manufacturing or repairing trolley lines (scaffold cars B60P; B61D15/00; platforms therefor B66F11/04; manufacturing conductors in general H01B13/00; overhead lines in general H02G1/00) · CPC title

• G01S17/08

  for measuring distance only (indirect measurement G01S17/46; active triangulation systems G01S17/48) · CPC title

• B60M1/23

  Arrangements for suspending trolley wires from catenary line · CPC title