TILLAGE CLUTCH ACTUATOR FOR WALKING TYPE MOBILE FARMING MACHINE

摘要

PROBLEM TO BE SOLVED: To ensure declutch movement of a tillage clutch of a rotary tiller. SOLUTION: This tillage clutch actuator holds a first tillage speed change shaft 27 and a second tillage speed change shaft 28 on the upper part of a tillage transmission case 19 of a rotary tillage tine 16 and tillage shaft 20 on the lower part of the transmission case, installs a tillage speed changer between the first tillage speed change shaft 27 and the second speed change shaft 28, transmits the power speed changed by the tillage speed changer from the second speed change shaft 28 to the first speed change shaft 27 through a clutch body 30 and then transmits the power from an upper sprocket 29 of the first speed change shaft 27 to a lower sprocket 35 of the tillage shaft 20 through a tiller driving chain 36. The clutch actuator installs a declutching spring 34 between a clutch shifter 33 operating engagement/disengagement of the clutch body 30 and the sidewall of the tillage transmission case 19 energizing the clutch body to declutch side. The clutch actuator securely moves the clutch body 30 to the disengagement side and enables reducing the number of parts and comprising a compact constitution by installing the declutching spring 34 coiled around a clutch rod 32 between the clutch shifter 33 and the sidewall of the tillage transmission case 19.