| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pretreatment driving device in a combine harvester for accurately synchronizing the driving speeds of a pretreatment part and a traveling device. <P>SOLUTION: A speed synchronizing means changes the driving speed of the pretreatment part 17 in the combine harvester for dividing the output from an engine 1 into a traveling transmission system and a pretreatment transmission system for the pretreatment part 17 including conveyance of grain culms in synchronization with the traveling speed. The speed synchronizing means includes: an actuator 39 for actuating the gear shifting operation of a pretreatment transmission 14 for driving the pretreatment part; a traveling rotation sensor 36 for detecting the driving speed after the gear shifting operation of a traveling transmission 8 for driving the traveling device; and a control device 38 for controlling the actuator 39 based on information of the traveling rotation sensor 36 to drive the pretreatment part 17 according to the traveling speed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
