PROBLEM TO BE SOLVED: To allow a conveyance device which conveys harvested crops to keep favorable conveyance for a long term.SOLUTION: The conveyance device conveys grain culm reaped by a reaping unit to rear part of a machine frame, and includes a rotation shaft 43 which is installed in a conveyance case for conveying grain culm and transmits power, a pair of rotors 44 which are arranged along an axial direction of the rotation shaft 43 with a gap and are coupled with and fixed to the rotation shaft 43 in an integrally rotatable manner via a coupling and fixing section 52, and a pair of covers 56 which cover the pair of the coupling and fixing section 52 and supported by the rotation shaft 43 in an integrally rotatable manner.COPYRIGHT: (C)2016,JPO&INPIT【課題】収穫した作物を搬送する搬送装置が長期にわたり良好な搬送作動を行えるようにする。【解決手段】刈取部にて刈り取られた刈取穀稈を機体後方に向けて搬送する搬送装置が、穀稈搬送用の搬送ケースの内部に架設されて動力が伝達される回転軸43と、回転軸43の軸芯方向に間隔をあけて備えられ且つ回転軸43に連結固定部52を介して一体回転自在に連結固定された搬送駆動用の一対の回転体44とを備え、一対の連結固定部52を覆い且つ回転軸43に一体回転自在に支持された一対のカバー56とを備えている。【選択図】図4