초록 ▼

A combine (11) is provided with a feed reverser mechanism (81) to drive a pair of feeder conveyors (23, 24) and a header conveyor auger (46) in reverse when the operator detects a jammed condition in the feeder conveyors or auger. The reversing mechanism (81) includes a hydraulic drive motor (92), a

A combine (11) is provided with a feed reverser mechanism (81) to drive a pair of feeder conveyors (23, 24) and a header conveyor auger (46) in reverse when the operator detects a jammed condition in the feeder conveyors or auger. The reversing mechanism (81) includes a hydraulic drive motor (92), a wrap spring clutch (93) and a hydraulic actuator (142), which automatically increases the tension on a drive belt (68) when the conveyors (23, 24) and auger (46) are driven in a reverse direction by the hydraulic motor (92). A pump relief valve (191) prevents delivery of excessive torque to the conveyors (23, 24) and auger (46) during a feed reversing operation.

대표청구항 ▼

In a mobile harvester having a header including a conveyor mechanism, a crop processor, a feeder including a conveyor mechanism for moving crop material from the header to the crop processor, an engine, a power train connecting the engine to the conveyor mechanisms to drive the latter in a crop feed

In a mobile harvester having a header including a conveyor mechanism, a crop processor, a feeder including a conveyor mechanism for moving crop material from the header to the crop processor, an engine, a power train connecting the engine to the conveyor mechanisms to drive the latter in a crop feeding direction, including a feeder clutch, the combination comprising, a feed reverser mechanism operable to drive said conveyor mechanisms in reverse independently of power transmission through said power train, said feed reversing mechanism having drive means operable to drive said conveyor mechanisms in reverse, including a hydraulic motor having an output shaft, a one-way clutch operatively interconnecting said output shaft and said conveyor mechanisms whereby the latter are driven in reverse when said hydraulic motor is operated, said one-way clutch serving to disconnect said hydraulic motor from said conveyor mechanisms when the latter are driven in said crop feeding direction by said power train, and control means for selectively operating said hydraulic motor including control logic insuring disengagement of said feeder clutch when said hydraulic motor is operated.