An eccentric bushing mounting structure for a forging press

By introducing components such as a fixed sleeve, hydraulic cylinder, and arc plate into the forging press, the assembly and disassembly difficulties caused by the traditional interference fit of the eccentric bushing are solved, enabling rapid installation and disassembly and reducing maintenance costs and time.

CN224424147UActive Publication Date: 2026-06-30QINGDAO HAORUISEN RUBBER & PLASTIC MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO HAORUISEN RUBBER & PLASTIC MACHINERY CO LTD
Filing Date
2025-06-16
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In existing forging presses, the eccentric bushings are mainly installed using an interference fit, which makes the assembly and disassembly process time-consuming and labor-intensive, and easily damages parts, increasing maintenance costs.

Method used

The device employs components such as a fixed sleeve, hydraulic cylinder, and arc plate. The extension and retraction force of the hydraulic cylinder drives the fixed sleeve to apply tension or compression to the bushing, enabling the bushing to be quickly installed and removed from the eccentric shaft. Combined with the design of fastening screws and support plates, it achieves convenient installation and removal.

Benefits of technology

It enables quick installation and removal of bushings, avoids damage to component surfaces, reduces assembly and maintenance time, reduces component replacement costs, and improves assembly flexibility.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224424147U_ABST
    Figure CN224424147U_ABST
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Abstract

This utility model discloses an eccentric bushing installation structure for a forging press, including a bushing body. A fixed sleeve is slidably installed on the outer wall of the bushing body. Multiple fastening screws are rotatably installed through the outer wall of the fixed sleeve via mounting holes. The outer wall of the bushing body has threaded holes that mate with the multiple fastening screws. A fixed frame is fixedly installed on the outer wall of the fixed sleeve. A support plate is fixedly installed inside the fixed frame by two fixing bolts. This utility model, by setting up components such as a fixed sleeve, a hydraulic cylinder, and an arc-shaped plate, utilizes the force of the extension and retraction end of the hydraulic cylinder to drive the fixed sleeve to apply tension or compression to the bushing body, achieving rapid sliding installation and disassembly of the bushing body on the eccentric shaft. This completely changes the traditional interference fit method that requires heating and pressing, and complex pulling and disassembly, avoiding damage to the surface of the bushing and the eccentric shaft, significantly reducing assembly and maintenance time, and reducing component replacement costs.
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