An Anti-rotation Piston Linear Motion Pair in Engineering Application of Large-Scale Offshore Devices

Abstract

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 pull shafts and the lower cylinder frame, change of the positions of the piston and the cylinder in the radial direction is well limited, and the some special requirements for directional running of the piston can be met.

Description

technical field [0001] The invention relates to a linear motion pair of anti-rotation pistons used in engineering applications of large-scale marine devices. Background technique [0002] In the prior art, in marine application devices, it is difficult to process the inner wall of the medium, large and long cylinder, and the radial direction between the piston and the cylinder is often inconsistent due to changes. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides an anti-rotation piston linear motion pair in the engineering application of large-scale marine installations. Storage and safety, reliability and other requirements, and there is no change in radial orientation between the piston and the cylinder, so as to meet the use requirements of marine application devices. [0004] The present invention is achieved through the following technical solutions. [0005] The anti-rotation piston linear motion pair...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, in the marine application device, it is difficult to process the inner wall of the medium, large and long cylinder, and the radial direction between the piston and the cylinder is often inconsistent due to changes.

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