US 5,048,797 AGranted

Self-propelled machine and method for laying a catenary and/or a contact wire of an overhead line

AssigneeFranz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H.

InventorsJosef Theurer, Friedrich Oellerer, Leopold R. Gruber

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Abstract

A self-propelled machine for continuously laying an overhead line extending above a track and attached to pylons spaced alongside the track, which comprises machine frame movable along the track in an operating direction, a power-driven, vertically and laterally adjustable work platform mounted on the machine frame for an operator assigned to attaching the overhead line to the pylons, a storage drum mounted on the machine frame, a length of the catenary and/or the contact wire of the overhead line being reeled on the storage drum and the drum being rotatable at a pay-out speed for unreeling the catenary and/or the contact wire, and a drive control for adjusting the moving speed of the machine frame in response to the pay-out speed of the catenary and/or the contact wire. A lifting device is mounted on the machine frame and includes a power-driven, vertically adjustable and laterally pivotal boom, and a support and guide pulley carried by the boom and arranged to support and guide the unreeled catenary and/or contact wire from the storage drum to the operator on the work platform at a constant height determined by the vertical adjustment of the boom and a lateral position determined by the pivoting of the boom, and a device is mounted on the machine frame between the storage drum and the pulley for continuously guiding and tensioning the catenary and/or contact wire, the guiding and tensioning device including a power-driven guide roller guiding the tensioned catenary and/or contact wire to the support and guide pulley, and a drive control for the guide roller.

Claims26

Dependent claims

A self-propelled machine for continuously laying and immediately fixing at least one of two elongated flexible elements of an overhead line extending above a track exclusively between successively pylons spaced alongside the track, one of the two elongated flexible elements being a catenary cable and the other elongated flexible element being a contact wire, which comprises

(a) a machine frame having two opposite ends,
(b) undercarriages supporting the machine frame at the ends thereof for mobility on the track,
(c) a drive for moving the machine frame along the track in an operating direction,
(d) a driving operator's cab mounted on the machine frame,
(e) a power-driven, vertically and laterally adjustable work platform mounted on the machine frame for an operator assigned to attaching the overhead line to the pylons,
(f) a storage drum mounted on the machine frame, a length of the elongated flexible element being reeled on the storage drum and the drum being rotatable at a pay-out speed for unreeling the elongated flexible element,
(g) a drive control for adjusting the moving speed of the machine frame in response to the payout speed of the elongated flexible element,
(h) a lifting device mounted on the machine frame, the lifting device including
(1) a power-driven, vertically adjustable and laterally pivotal boom and
(2) a power-driven support and guide pulley carried by the boom for pivoting about a substantial vertical axis and arranged to support and guide the unreeled elongated flexible element from the storage drum to the operator on the work platform at a constant height determined by the vertical adjustment of the boom and a lateral position determined by the pivoting of the boom, and
(i) a device mounted on the machine frame between the storage drum and the pulley having means for continuously guiding and tensioning the elongated flexible element along a lateral zig-zag path exclusively between successive pylons so that the element is automatically tensioned and, in cooperation with said lifting device, automatically centered and oriented in the longitudinal direction of the element when the element extends in a lateral zig-zag path between successive ones of the pylons at respective sides of the track, the guiding and tensioning device including
(1) a power-driven guide roller guiding the tensioned elongated flexible element to the support and guide pulley, and
(2) a drive control for the guide roller.

10 more elements

A self-propelled machine for continuously laying at least one of two elongated flexible elements of an overhead line extending above a track and attached to pylons spaced alongside the track, one of the two elongated flexible elements being a catenary cable and the other elongated flexible element being a contact wire, which comprises

(a) a machine frame having two opposite ends,
(b) undercarriages supporting the machine frame at the ends thereof for mobility on the track,
(c) a drive for moving the machine frame along the track in an operating direction,
(d) a driving operator's cab mounted on the machine frame,
(e) a power-driven, vertically and laterally adjustable work platform mounted on the machine frame for an operator assigned to attaching the overhead line to the pylons,
(f) a storage drum mounted on the machine frame, a length of the elongated flexible element being reeled on the storage drum and the drum being rotatable at a pay-out speed for unreeling the elongated flexible element,
(g) a drive control for adjusting the moving speed of the machine frame in response to the pay-out speed of the elongated flexible element,
(h) a lifting device mounted on the machine frame, the lifting device including
(1) a power-driven, vertically adjustable and laterally pivotal boom and
(2) a support and guide pulley carried by the boom and arranged to support and guide the unreeled elongated flexible element from the storage drum to the operator on the work platform at a constant height determined by the vertical adjustment of the boom and a lateral position determined by the pivoting of the boom,
(i) a device mounted on the machine frame between the storage drum and the pulley for continuously guiding and tensioning the elongated flexible element, the guiding and tensioning device including
(1) a power-driven guide roller guiding the tensioned elongated flexible element to the support and guide pulley, and another guide roller connected with the power-driven guide roller for rotation in tandem therewith, the guide rollers being rotatable about transverse axes extending parallel to each other and being tiltable about an axis extending in the longitudinal extension of the machine frame and perpendicularly to the rotary axes of the rollers, the tandem guide rollers forming a winch about which the elongated flexible element may be wound several times for obtaining a desired element tensioning rotary moment and
(2) a drive control for the guide roller, and
(j) a common cradle for the storage drum and the elongated flexible element tensioning winch, the storage drum being mounted on the cradle for transverse displacement parallel to the rotary axes of the guide rollers, and the cradle being mounted on the machine frame for tilting about the longitudinally extending axis.

11 more elements

An apparatus for continuously reconstructing an overhead line comprised of two elongated flexible elements extending above a track exclusively between successive pylons spaced alongside the track, one of the two elongated flexible elements being a catenary cable and the other elongated flexible element being a contact wire, which comprises

(a) two like self-propelled machines for respectively continuously laying and receiving the overhead line, each machine comprising
(1) a machine frame having two opposite ends,
(2) undercarriages supporting the machine frame at the ends thereof for mobility on the track,
(3) a drive for moving the machine frame along the track in an operating direction, adjacent ones of the machine frame ends of the machines being spaced from each other in said direction and the machine being mirror-symmetrically arranged in said direction,
(4) a driving operator's cab mounted on the machine frame,
(5) a power-driven, vertically and laterally adjustable work platform mounted on the machine frame for an operator assigned to attaching the overhead line to the pylons,
(6) a storage drum mounted on the machine frame, a length of the elongated flexible element being reeled on the storage drum and the drum being rotatable at a pay-out speed for unreeling the elongated flexible element,
(7) a drive control for adjusting the moving speed of the machine frame in response to the pay-out speed of the elongated flexible element,
(8) a lifting device mounted on the machine frame, the lifting device including a power-driven, vertically adjustable and laterally pivotal boom, and a power-driven support and guide pulley carried by the boom for pivoting about a substantial vertical axis and arranged to support and guide the unreeled elongated flexible element from the storage drum to the operator on the work platform at a constant height determined by the vertical adjustment of the boom and a lateral position determined by the pivoting of the boom, and
(9) a device mounted on the machine frame between the storage drum and the pulley having means for continuously guiding and tensioning the elongated flexible element along a lateral zig-zag path exclusively between successive pylons so that the element is automatically tensioned and, in cooperation with said lifting device, automatically centered and oriented in the longitudinal direction of the element when the element extends in a lateral zig-zag path between successive ones of the pylons at respective sides of the track, the guiding and tensioning device including a power-driven guide roller guiding the tensioned elongated flexible element to the support and guide pulley, and a drive control for the guide roller, and
(b) a work car coupled to each self-propelled machine, each work car comprising
(1) a power-driven, vertically adjustable and longitudinally displaceable work platform.

9 more elements

Dependencies are inferred from the claim text.