Hydraulic cylinder mechanism of four-column servo hydraulic press

By introducing a No. 1 positioning ring, a No. 2 positioning ring, and a ball bearing structure into the hydraulic cylinder, the problem of hydraulic rod misalignment due to torsional force is solved, the service life and sealing performance of the hydraulic cylinder are improved, and the replacement process of the dust cover is simplified.

CN224545412UActive Publication Date: 2026-07-24TAITIAN MASCH JIANGSU CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TAITIAN MASCH JIANGSU CO LTD
Filing Date
2025-07-28
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

During the pressing process, the piston and hydraulic rod of the hydraulic cylinder are prone to misalignment due to torsional force, which can damage the end cap and piston and affect their service life.

Method used

The piston and hydraulic rod are positioned and guided by No. 1 and No. 2 positioning rings, and friction is reduced by ball bearings. At the same time, limit holes and limit grooves are set to facilitate the replacement of dust gaskets and enhance sealing.

Benefits of technology

It effectively prevents hydraulic rods from being damaged by torsional forces, extends their service life, improves maintenance efficiency by simplifying the dust cover replacement process, and enhances sealing performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hydraulic cylinder mechanism of four -column type servo hydraulic press relates to hydraulic press accessory technical field. The hydraulic cylinder mechanism of four -column type servo hydraulic press, include: hydraulic cylinder body, piston, slide and set in the inside of hydraulic cylinder body. The hydraulic cylinder mechanism of four -column type servo hydraulic press, through the setting of no. The first positioning ring and the second positioning ring can effectively position and guide the piston and the hydraulic rod, so that the hydraulic rod is twisted even by the first positioning ring and the second positioning ring and is limited, and the force thereof is directly transmitted to the hydraulic cylinder body, and it is ensured that the end cover and the piston are not damaged due to the torsional force, and the service life is improved, further, through the setting of the ball, the friction between no. The first positioning ring and the second positioning ring between the hydraulic cylinder body and the hydraulic rod can be greatly reduced, and the service life is improved.
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