Dragline with cantilevered side-access dump block

E - Fixed Constructions – 02 – F

Patent

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Details

E02F 3/58 (2006.01) B66D 3/04 (2006.01) E02F 3/48 (2006.01)

Patent

CA 2163506

A dragline comprising a main housing, a bucket hoist mechanism mounted on the housing, a bucket drag mechanism mounted on the main housing, a moving mechanism for moving the main housing over the ground, a boom which is supported on the main housing and which has an upper end, a bucket, a hoist rope having one end connected to the bucket hoist mechanism, extending over the sheave, and having an opposite end, a drag rope extending between the bucket and the bucket drag mechanism, a dump block including a frame having a main portion connected to the opposite end of the hoist rope, and a cantilevered spindle extending from the main portion, and a dump block sheave mounted on the spindle for rotation about a sheave axis, and a dump rope extending over the dump block sheave and having one end connected to the drag rope and an opposite end connected to the bucket, such that the dump rope can be removed from the sheave in the direction away from the frame main portion.

Dragline constituée des éléments suivants : un logement principal; un mécanisme de levage de benne monté sur le logement; un mécanisme de traction de benne monté sur le logement principal; un mécanisme conçu pour déplacer le logement principal au-dessus du sol; une flèche prenant appui sur le logement principal et comportant une extrémité supérieure; une benne; un câble de levage dont une extrémité est reliée au mécanisme de levage de la benne et passant par-dessus la poulie pour atteindre son autre extrémité; un câble de traction reliant la benne au mécanisme de traction de la benne; un bloc de basculement équipé d'un cadre dont la section principale est reliée à l'extrémité opposée du câble de levage; un axe dépassant de la section principale; une poulie associée au bloc de basculement et montée sur cet axe de manière à pouvoir tourner sur l'axe de la poulie; et un câble de basculement, installé sur la poulie du bloc de basculement, dont une extrémité est rattachée au câble de traction tandis que l'autre est reliée à la benne pour que l'on puisse retirer le câble de basculement de la poulie en l'éloignant de la section du cadre principal.

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