Combined rectangular oil cylinder

Abstract

The invention discloses a combined rectangular oil cylinder. The oil cylinder is formed by combining a plurality of components of a cylinder body, wherein the components of the cylinder body consist of four cylinder wall structural blocks and four corner fixing blocks in the longitudinal direction of an oil cylinder body; four corners of every two adjacent cylinder wall structural blocks are obliquely joined at 45 degrees and sealed in the middle; the outsides of the four corners are fixed by the four corner fixing blocks; a wire winding layer is tightly wound around the corner fixing blocks;and a wedging block group is tightly wedged between the winding layer and the cylinder wall structural blocks to further tighten the wire so as to reach a larger pre-tightening force. An upper end cover and a lower end cover are fixed at two ends by bolts. The wire winding layer of the oil cylinder makes the cylinder body generate an internal stress in advance, and the wire presses wedging blocksto generate a pre-stressed force to the cylinder wall so as to eliminate the internal pressure to the cylinder wall in the use of the oil cylinder. The corner fixing block generates a pre-stressed force to four corners of the cylinder wall to eliminate an internal stress to the corners of the cylinder wall. The combined rectangular oil cylinder solves the stress deformation and other processing problems in the use of the oil cylinder in the prior art.

Description

technical field [0001] The invention relates to an oil cylinder, in particular to a rectangular combined oil cylinder. Background technique [0002] In many industries such as aerospace, automobile, locomotive, military industry, building materials, heavy equipment, etc., a large number of rectangular shaped parts are required, such as automobile panels, outer skins of locomotive bodies, floor tiles in decorative materials, etc. At present, in actual production, the processing method of rectangular plates is mainly to use large-scale presses for stamping or pressing. For these formed parts, large-scale presses are generally driven by hydraulic pressure. The current hydraulic cylinders are circular hydraulic cylinders, but When processing rectangular parts, if the worktable of the press is smaller than the product to be pressed, it is easy to generate bending moment. If the pressure distributed on the plate is to be uniform, the rectangular forming part must be included in th...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned force deformation and other processing problems that occur when the oil cylinder in the prior art is working, the present invention designs a new type of oil cylinder structure, that is, a combined structure rectangular oil cylinder

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