Apparatus for roadway surface reclaiming drum

摘要

An apparatus for a roadway surface reclaiming drum (12) is disclosed that includes a plurality of flighting sections (22) generally helically attached to a cylindrical surface of the drum (12) at an included angle of about 40° to about 60°. During rotation of the drum (12) about its cylindrical axis (X), a plurality of cutter bits (112) mounted to openings (110) defined in the flighting sections (22) loosen roadway surface and the flighting sections transport loosened roadway material axially along the drum (12) and between the flighting sections (22) towards a lateral center portion (24) of the drum (12). A plurality of teeth (120) received in recesses (118) defined in walls (116) of the flighting sections (22) facilitate transport of loosened roadway material between adjacent flighting sections (22) towards the lateral center portion (24) of the drum (12) and reduce wear of the flighting sections (22). Cutter bit inserts (112) for receiving the cutter bits (28) are mounted to base portions (26) attached to the outermost portions (107) of the flighting sections (22), and define interior bores (130). Jamming fasteners (140) are provided to secure the cutter bit inserts (112) to the flighting sections (22) against relative rotational movement.