Anti-rotating piston rectilinear motion pair applied to large-scale marine device engineering

The invention provides an anti-rotating piston rectilinear motion pair applied to large-scale marine device engineering. The anti-rotating piston rectilinear motion pair comprises an upper cylinder frame, a piston base body, a center guide shaft, an arc-shaped pressing plate, an arc-shaped sealing vane, pull shafts, a lower cylinder frame, a connecting frame, nuts, pin shafts and rollers; the upper cylinder frame and the lower cylinder frame are connected and fixed up and down to form a cylinder, the center guide shaft is fixed to the central position between the upper cylinder frame and the lower cylinder frame, and the center guide shaft penetrates through the central position between the two end faces of the piston base body. The running resistance to a piston can be well reduced, the piston and the cylinder can be better protected against collision, and the reliability and corrosion resistance of the piston motion pair in seawater are improved; due to the fact that a guide sleeve is limited by the four pu