US 2026/0078673 A1Published application

Method for relocating a modular trolley system and modular trolley system

OwnerRatna-Kanth DITTAKAVI, Konsta KAINULAINEN +1inventors

InventorsRatna-Kanth DITTAKAVI, Konsta KAINULAINEN, Mehrzad ASHNAGARAN

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Abstract

A method and a system for relocating a modular trolley system for a mining truck in a mine are provided. The modular trolley system includes a rectifier substation and a wire-pole-assembly. At least parts of the rectifier substation and the wire-pole-assembly include a transport coupling section for coupling the trolley system element to a transport coupling tool and for transporting the trolley system element. The method includes disconnecting at least some of the transportable trolley system elements at a first location of the mine, and coupling the respective trolley system elements to the transport coupling tool via the transport coupling section. The method additionally includes transporting the trolley system elements to a second location different from the first location. The method further includes re-connecting the transported trolley system elements of the modular trolley system at the second location of the mine.

Claims21

Dependent claims

A method for relocating a modular trolley system for a mining truck in a mine,

wherein the modular trolley system comprises:
a rectifier substation comprising a rectifier transformer;
a wire-pole-assembly comprising:
a foundation;
a wire holding beam;
and
a pole element mounted to the foundation and holding the wire holding beam;
and
conductors comprising a contact wire and a feeder wire;
wherein at least the rectifier substation and the wire-pole-assembly, or the foundation, the wire holding beam, and the pole element, are transportable trolley system elements which comprise a respective transport coupling section configured to:
couple the transportable trolley system element to a transport coupling tool;
and
transport the transportable trolley system element;
the method comprising:
disconnecting at least some of the transportable trolley system elements of the modular trolley system at a first location of the mine, and coupling the respective at least some of the transportable trolley system elements to the transport coupling tool via the transport coupling section;
transporting the at least some of the transportable trolley system elements of the modular trolley system to a second location different from the first location;
and
re-connecting the transported trolley system elements of the modular trolley system at the second location of the mine.

15 more elements

A relocatable modular trolley system configured to relocate a modular trolley system, the relocatable modular trolley system comprising:

a rectifier substation comprising a rectifier transformer;
a wire-pole-assembly comprising:
a foundation;
a wire holding beam;
and
a pole element mounted to the foundation and holding the wire holding beam;
conductors comprising a contact wire and a feeder wire;
and
a suspension system configured to hold the conductors placed on the wire holding beam;
wherein at least the rectifier substation and the wire-pole-assembly (623), or the foundation, the wire holding beam, and the pole element, are transportable trolley system elements which comprise a respective transport coupling section configured to:
couple the respective trolley system element to a transport coupling tool;
and
transport the respective trolley system element, and
wherein the relocatable modular trolley system is configured to:
disconnect at least some of the transportable trolley system elements of the modular trolley system at a first location of the mine, and couple the respective at least some of the transportable trolley system elements to the transport coupling tool via the transport coupling section;
transport the at least some of the transportable trolley system elements of the modular trolley system to a second location different from the first location;
and
re-connect the transported trolley system elements of the modular trolley system at the second location of the mine.

15 more elements

Dependencies are inferred from the claim text.

Facts

Application: 19/396,690Filed 21 Nov 2025
Priority: 22 May 2023
Published: 19 Mar 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

E21F 17/06
Distributing means for power supply in mines: distributing electric power; Cable networks; Conduits for cables
H02J 7/70
Circuit arrangements for charging or discharging batteries or for supplying loads from batteries: characterised by the mechanical construction
B60L 50/53
Using propulsion power supplied by batteries or fuel cells: in combination with an external power supply, e.g. from overhead contact lines
E21F 13/00
Transport specially adapted to underground conditions