Oil seal cooling protection device and mold oil cylinder

By designing an oil seal cooling protection device, the oil seal is efficiently cooled using a circulating water circuit and cooling walls, which solves the oil leakage problem caused by high-temperature aging of the oil seal, and achieves stable operation of the oil cylinder and improved production efficiency.

CN122429142APending Publication Date: 2026-07-21FAW CASTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
FAW CASTING CO LTD
Filing Date
2026-06-03
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In the existing technology, oil seals are prone to aging due to long-term exposure to high temperature environment, which leads to oil leakage in mold cylinder. Existing cooling solutions have limited cooling effect on oil seals and cannot effectively alleviate this problem.

Method used

An oil seal cooling and protection device was designed, including a module body with a through connecting rod hole and a circumferential circulating water channel. The cooling wall is directly attached to the surface of the oil seal, and the heat is carried away through the circulating water channel, forming a physical barrier to isolate external heat sources, thereby achieving efficient cooling of the oil seal.

Benefits of technology

It effectively reduces the working temperature of oil seals, extends the sealing cycle, reduces oil leakage, lowers maintenance and replacement costs, and improves mold production efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122429142A_ABST
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Abstract

The application provides an oil seal cooling protection device and a mold oil cylinder, and relates to the technical field of mold engineering. The oil seal cooling protection device comprises a module main body, the module main body has a connecting rod hole penetrating through itself along an axial direction and used for penetrating a connecting rod, a circulating water channel is arranged along the circumferential direction of the module main body, and water inlets and outlets are formed at the two ends of the circulating water channel and the side walls of the module main body. Wherein, one side wall of the module main body is a cooling wall, one side of the cooling wall is connected with the circulating water channel, and the other side is used for being attached to the outer surface of the oil seal of the oil cylinder. The oil seal cooling protection device directly attaches the cooling wall to the oil seal, conducts the heat of the oil seal to the circulating water channel and removes the heat by flowing cooling water, meanwhile, the module main body physically isolates the oil seal, reduces the heat radiation of external heat sources to the oil seal, thereby reducing the working temperature of the oil seal, slowing down the aging speed of the oil seal, prolonging the service life of the oil seal, reducing the oil leakage of the oil cylinder, reducing the maintenance cost, and improving the production efficiency of the mold.
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