| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for controlling reaping rotation speed of a combine harvester which is capable of quickly setting the rotation speed at a start of reaping during a low-speed traveling state.SOLUTION: A reaping rotation speed is increased from 0 rpm by gradually increasing a speed of a trunnion shaft regulating motor of a continuously variable transmission (19) for reaping, and a regulation position of the trunnion shaft regulating motor at the first detection of a preset rotation speed is detected and stored as an initial preset rotation speed by a trunnion shaft position detection sensor (SE1). A rotation speed of a reaping transfer unit (8) at an ultralow speed traveling in an automatic control drive is set as an initially preset rotation speed and, when the rotation speed of the reaping transfer unit (8) is higher than the initially preset rotation speed, the rotation is controlled to the reaping rotation speed correlating to a vehicle speed. |
