| 摘要 |
PROBLEM TO BE SOLVED: To provide a combine harvester, in which the driving speed of a feed chain can be changed independently with respect to the driving speed of a mower and thereby the transfer state of the mowed grain culm from the mower to the feed chain may be smoothly maintained to enhance the efficiency of the threshing operation.SOLUTION: The combine harvester comprises: a travel unit (2) disposed in a lower portion of a machine body frame (1) having an engine (62) mounted thereon; a thresher (3) disposed in the upper portion of the machine body frame (1) and having a feed chain (12B); and a mower (4) disposed on the front side of the body frame (1) for mowing the grain culm in a farm field and transferring the grain culm to a feed chain (12B). Then, the combine harvester further comprises: a first hydraulic type stepless speed variator (66) for driving the travel unit (2) and the mower (4); a second hydraulic type stepless speed variator (10) for driving the feed chain (12B); and a control device (100) for controlling the speed of the second hydraulic type stepless speed variator (10) in accordance with the output revolving speed of the first hydraulic type stepless speed variator (66). |
