PRETREATMENT DRIVING SYSTEM OF COMBINE HARVESTER

摘要

PROBLEM TO BE SOLVED: To provide a pretreatment driving system of a combine harvester changing the driving speed of a pretreatment part following to the traveling speed so that lodged grain culms can smoothly be reaped. SOLUTION: A speed setting means for changing the driving speed of the pretreatment part 8 interlockingly with the traveling speed is composed as follows. The interlocking ratio of the driving speed of the pretreatment part 8 to the traveling speed is increased when an auxiliary speed changing lever 67 for carrying out auxiliary speed changing operation of a traveling speed changing part 12 to the low speed side or when a lodging setting means 77 for setting whether or not reaping operation of the lodged grain culms is performed is set so as to perform the reaping operation of the lodged grain culms. COPYRIGHT: (C)2005,JPO&NCIPI