SINGLE ROLLER-IDLER ASSEMBLY FOR CRAWLER UNDERCARRIAGE

摘要

ROLLER-IDLER ASSEMBLY FOR CRAWLER UNDERCARRIAGE This invention is an assembly for bogie mounting a roller to an idler on a crawler track undercarriage such that the benefits of load transfer and shock absorbance are provided for a single roller-idler combination on a crawler track-type vehicle. A crawler track undercarriage has a track frame to which is pivotally mounted a support link and pivotally mounted thereto a bogie link. Rotatably mounted on said bogie link are an idler and a roller. Variations in ground level cause the bogie link to rotate such that resilient pads are compressed thereby absorbing shock and so that the less heavily loaded of the roller and the idler has its loading increased. This invention also mitigates the transient loading caused by the crawler track undercarriage being backed into obstacles.