Travel driving apparatus for a track-type vehicle
AssigneeKomatsu Ltd.
InventorsTsuyoshi Yoshida, Teiji Yamamoto
Life of this patent
Estimating the term…
Abstract
A travel driving apparatus for a track-type earthmoving machine is provided which can reduce abrasion wear of a sprocket and a bushing and which enables easy replacement of worn members. A contact member is detachably mounted to an opposing surface of a track shoe to a sprocket, and a tooth top portion of the sprocket is brought into contact with the contact member, thereby securing a gap between a bushing of a track chain and a tooth bottom portion of the sprocket. The tooth top portion of the sprocket and a surface portion of the contact member have surface portions which are brought into contact with each other at a time when the sprocket rotates.
Claims12
A travel driving apparatus for a track-type vehicle having a power unit, a sprocket that is rotated and driven by said power unit, an idler, and a track chain including a plurality of links pivotally connected to one another, said travel driving apparatus comprising:
- a bushing which connects links provided in right and left sides in a width direction of the track chain in an annular shape and which is engaged with a tooth of the sprocket so as to be driven;
- a track shoe which is mounted to an outer peripheral surface side of the links;
- and
- a contact member which is detachably mounted to an opposing surface of the track shoe to the sprocket and which is brought into contact with a tooth top portion of the sprocket so as to secure a gap between the bushing and a tooth bottom portion of the sprocket.
Dependencies are inferred from the claim text.