TRANSMISSION OF COMBINE HARVESTER

摘要

PROBLEM TO BE SOLVED: To provide a transmission of a combine harvester designed to smoothly carry out maneuvering of a traveling machine body in both dry paddy operation and wet paddy operation and automatically perform changeover of a dry paddy turning mode to a wet paddy turning mode by changing over the operation to the wet paddy turning mode during operation and traveling in the wet paddy, and thereby carrying out turning of the traveling machine body in the nearly same state as in the dry paddy operation. SOLUTION: The transmission is composed so that the dry paddy turning mode during the dry paddy operation can be changed over to the wet paddy turning mode during the wet paddy operation by changing a connecting pressure of turning clutches (43L) and (43R). The transmission is equipped with a speed difference discriminating means for discriminating the difference between a set speed (S) of the traveling machine body (1) and a substantial speed (K) thereof as a slip ratio during the traveling and further a dry and wet changeover controlling means for automatically changing over the dry paddy turning mode to the wet paddy turning mode when the slip ratio is discriminated to be a prescribed value or above by the speed difference discriminating means. COPYRIGHT: (C)2006,JPO&NCIPI