Multi-drum barking machine

B - Operations – Transporting – 27 – L

Patent

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Details

B27L 1/02 (2006.01) B27L 1/10 (2006.01)

Patent

CA 2186098

A barking machine comprises a container for accommodating logs longitudinally therein, this container having a longitudinal side wall with a lower end, and a bottom wall including a first longitudinal opening adjacent to the lower end of the first side wall, a second intermediate longitudinal opening, and a third longitudinal opening. First, second and third longitudinal drum members are rotatively mounted in the first, second and third longitudinal openings, respectively, to expose a top portion thereof inside the container. A plurality of outer barking teeth are distributed on the rotary drum members to contact the logs and thereby bark these logs. Finally, a drive system rotates the drum members in the same direction for moving the barking teeth of the top portion thereof toward the longitudinal side wall. The bottom wall and the rotary drum members form a wall and drum member assembly having a greater slope from the first to the second drum member and a smaller slope from the second to the third drum member.

Cette invention concerne une écorceuse comportant une benne recevant des grumes disposées longitudinalement, ladite benne comprenant une paroi longitudinale à la base de laquelle est fixée un fond présentant une première ouverture longitudinale contiguë à la base de ladite première paroi longitudinale, une deuxième ouverture longitudinale intermédiaire et une troisième ouverture longitudinale. Vis-à-vis des trois dites ouvertures longitudinales se trouvent trois tambours rotatifs dont la partie supérieure pénètre à l'intérieur de la benne. Chaque tambour porte sur sa surface extérieure une pluralité de dents d'écorçage qui attaquent les grumes pour en enlever l'écorce. Un système d'entraînement fait tourner les trois tambours dans un même sens, c'est-à-dire vers la paroi longitudinale de la benne en partant de l'axe de symétrie longitudinal des tambours. Le fond de la benne et les tambours forment un ensemble dont la pente entre le premier tambour et le deuxième est supérieure à la pente entre le deuxième et le troisième.

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