Hydraulic cylinder for tension straightener

Abstract

The invention relates to a hydraulic cylinder, in particular to a hydraulic cylinder for a tension straightener, and solves the technical problems that a conventional hydraulic cylinder of a tension straightener needs to be equipped with a high-pressure hose, so that the structure is complex, the cost is high, and the maintenance is difficult. A supporting ring, a guiding ring and a pressing ring are mounted at the rear end part of a piston rod in sequence; a blind flange is mounted at the front end part of a cylinder body of a hydraulic cylinder 1; a plunger gland is mounted at the front end part of the blind flange; the cylinder body and a movable beam are tightened by a bolt; the front end of the piston rod adopts a spherical surface; a spherical cushion is mounted at the front end of the piston rod; the front end of the piston rod is mounted on a frame by a bolt through a pressing flange; a hole led to a piston cavity oil circuit and a hole led to a piston rod cavity oil circuit are processed in the center of the piston rod; and an E port of the piston rod cavity oil circuit is sealed by a screwed plug. The hydraulic cylinder has the advantages of simple structure, low cost and convenience in use and maintenance.

Description

technical field [0001] The invention relates to a hydraulic cylinder, in particular to a hydraulic cylinder for a tension leveler. Background technique [0002] The structure of the traditional tension leveler is as follows: figure 1 As shown, the two ends of the product 35 that needs to be stretched and straightened are clamped by the stretching head 33 and the fixed head 36, the stretching head 33 is installed on the moving beam 31, the moving beam 31 can move horizontally on the base 34, and the moving beam 31 Two hydraulic cylinders 30 are installed on both sides to drive the moving beam 31 to move and stretch and straighten the product 35 . Since the cylinder body of the hydraulic cylinder is installed on the moving beam 31, and the piston rod is installed on the frame 32, when the tension leveler works, the cylinder body moves relative to the ground (the piston rod does not move relative to the ground), and the cylinder body moves The oil port of the piston chamber a...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art, provide a hydraulic cylinder for tension levelers, and solve the problem that the hydraulic cylinders of traditional tension levelers need to be equipped with high-pressure hoses, resulting in complex structures, high costs, and difficult maintenance. technical problem

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