RICE STRAW TREATMENT APPARATUS AND RICE STRAW CUTTING APPARATUS

摘要

It is possible to reduce the possibility that dust mixed with the sorting air from the threshing device is covered by the drive motor for driving the opening and closing cover of the discharge straw cutting apparatus or the linking mechanism from the drive motor to the opening and closing cover. The present invention includes a discharge straw cutting apparatus (5), a discharge straw transport apparatus, and an upper cover (43) covering the upper sides of the discharge straw cutting apparatus (5) and the discharge straw transport apparatus. The opening and closing cover (52) of the discharge straw cutting apparatus (5) is configured to be switchable between a standing posture (a1) capable of receiving discharge straw falling and supplied from the discharge straw transport apparatus and a closing posture (a2) for discharging the discharge straw falling and supplied from the discharge straw transport apparatus to the rear side of the base. The upper cover (43) is provided with a ventilation hole (46) for externally extracting the sorting air of the air vent at the threshing device side. Also provided is a discharge straw cutting apparatus capable of facilitating removal of a cutting drive shaft or a male blade rotating shaft from the cutter case. A cutout groove portion (1057L) through which at least one of the cutting drive shaft and the male blade rotating shaft can be inserted is formed in the right and left side wall portions of the cutter case (1050) along the side wall surfaces of the right and left side wall portions (1050L). The cutout groove portion (1057L) is formed so as to extend from the shaft supporting portion by the shaft supporting member of the cutting drive shaft or the male blade rotating shaft to the end edge of the side wall surface and the wall portion of the cutter case (1050) in the direction crossing the extension direction of the cutout groove portion (1057L) extending from the shaft supporting portion to the end edge of the side wall portion is configured to be openable or open.