Material taking device and ship unloader

The utility model relates to the technical field of ship unloading equipment, and discloses a material taking device and a ship unloader. The bucket chain comprises a plurality of hoppers which are connected end to end; the material taking driving mechanism comprises a first chain wheel, a second chain wheel, a third chain wheel and a material taking driving unit; the first chain wheel is rotatably mounted at the lower end of the chain bucket arm; the second chain wheel is arranged on one side of the first chain wheel in the horizontal direction; the third chain wheel is arranged at the upper end of the chain bucket arm; the material taking driving unit is in transmission connection with the third chain wheel; the hoppers are arranged around the chain bucket arm, the first chain wheel, the second chain wheel and the third chain wheel; the two ends of the first telescopic mechanism are rotationally connected with the side faces of the first chain wheel and the second chain wheel correspondingly; and one end of