The invention discloses an efficient
stacker crane used inside a van type
truck. The efficient
stacker crane comprises a frame, return pulleys, a
servo motor, a feeding device, a non-power roller, a feeding sliding rail, a conveying device, an X-axis beam, an X-
axis cylinder, an X-axis rail, an X-axis roller, a lifting portable frame and a discharging device, wherein the return pulleys and the
servo motor are fixed at the bottom of the frame, the feeding device is connected with the frame through the feeding sliding rail, the non-power roller is mounted on the inner side of the bottom of the frame, the X-axis beam is embedded into a groove of the frame, the X-
axis cylinder drives the X-axis beam to slide relative to the frame, the feeding device slides on the X-axis rail on the X-axis beamthrough the X-axis roller, the lifting portable frame is fixed at the front end of the frame, and the discharging device is mounted on the lifting portable frame. According to the efficient
stacker crane, positions are adjusted through a PLC (
programmable logic controller)
control system, so that the efficient stacker crane can solve the problem that a van type
truck cannot be fully filled by a current stacker crane.