DRIVING UNIT FOR CONVEYING DEVICE

To provide a driving unit for a conveying device capable of obtaining larger propulsion power while reducing a load applied on a wheel.SOLUTION: A driving unit 31 in a vanning/devanning device 1 includes a running motor 41, a driving wheel 45, an auxiliary wheel 47, and an electromagnetic clutch 49. The driving wheel 45 is rotated around a wheel driving shaft C1 extending in a horizontal direction by the running motor 41 to cause the device 1 to run. The auxiliary wheel 47 is rotated around the wheel driving shaft C1. The electromagnetic clutch 49 switches between a connection state of transmitting a drive force of the running motor 41 to the auxiliary wheel 47 by connecting the auxiliary wheel 47 to the driving wheel 45 and a connection release state of transmitting the drive force of the running motor 41 only to the driving wheel 45 by disconnecting the auxiliary wheel 47 from the driving wheel 45.SELECTED DRAWING: Figure 2 【課題】搬送装置において、車輪に対する荷重を小さくしつつ、大きな推進力を得る。【解決手段】バンニング・デバンニング装置１における駆動ユニット３１は、走行モータ４１と、駆動車輪４５と、補助車輪４７と、電磁クラッチ４９とを備えている。駆動車輪４５は、走行モータ４１によって水平方向に延びる車輪駆動軸Ｃ１回りに回転し、装置１を走行させる。補助車輪４７は、車輪駆動軸Ｃ１回りに回転する。電磁クラッチ４９は、補助車輪４７を駆動車輪４５に連結することで走行モータ４１の駆動力を補助車輪４７に伝える連結状態と、補助車輪４７と駆動車輪４５を切り離すことで走行モータ４１の駆動力が駆動車輪４５のみに伝わる連結解除状態と、で切り替える。【選択図】図２