Shuttle vehicle

A shuttle vehicle, comprising:

• a vehicle body, a traveling apparatus and a box conveying and pickup apparatus, wherein,
• two horizontal support plates provided in parallel and spaced apart are fixed on the vehicle body, the two horizontal support plates are located on a same horizontal plane, a gap formed between the two horizontal support plates is perpendicular to a traveling direction of the vehicle body, and the two horizontal support plates are configured to carry a material box;
• the traveling apparatus is fixedly connected to the vehicle body and is used for driving the vehicle body to move along a rail;
• the box conveying and pickup apparatus comprises a chain assembly and a fork, the chain assembly is provided below the horizontal support plates, and the chain assembly comprises a chain, a sprocket group, and a chain driving apparatus;
• the chain is wound around the sprocket group;
• the chain driving apparatus is connected to the sprocket group and is used for driving the chain to move in a vertical plane perpendicular to the traveling direction of the vehicle body;
• a first end of the fork is fixedly connected to the chain, and a second end of the fork extends outwards in a normal direction of the chain;
• a bent portion bending upwards is formed at the second end, and the bent portion is used for contacting with an inner wall of a groove at a bottom of the material box, so as to push the material box to move along with the fork;
• when the shuttle vehicle moves to a preset position, the chain is configured to drive the fork to move, so that the bent portion gets into the groove at the bottom of the material box, and the chain is configured to drive the fork in the gap to push the material box along a direction parallel to the gap, so that the material box is moved from a shelf to the horizontal support plates or the material box is moved away from the horizontal support plates,
• wherein the sprocket group comprises a driving sprocket and a driven sprocket, the driving sprocket and the driven sprocket are rotatably provided below the horizontal support plates, a rotating shaft of the driving sprocket and a rotating shaft of the driven sprocket are parallel to the traveling direction of the vehicle body, and a highest point of the driving sprocket in a vertical direction and a highest point of the driven sprocket in the vertical direction are located on a same horizontal plane, so that a part of the chain between the highest point of the driving sprocket and the highest point of the driven sprocket is a straight line parallel to the gap.