Shaft seal structure and pump

By incorporating removable seals into the shaft seal structure of the slurry pump, the problem of needing to disassemble the pump body to replace the seal rings in existing technologies is solved, enabling rapid replacement of the seals and reducing maintenance difficulty and time.

CN224380171UActive Publication Date: 2026-06-19HANJIANG HONGYUAN XIANGYANG SILICON CARBIDE SPECIAL CERAMICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANJIANG HONGYUAN XIANGYANG SILICON CARBIDE SPECIAL CERAMICS
Filing Date
2025-06-19
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In the existing technology, the shaft seal of slurry pumps has a short service life, and the impeller and pump body need to be removed to replace the seal ring, which makes the replacement difficult and time-consuming.

Method used

A shaft seal structure is designed, including a shaft sleeve, a fixing component, and a sealing component. By setting a first sealing element between the first fixing seat, the second fixing seat, and the shaft sleeve, the sealing part can be detachably connected, and the sealing element can be replaced without disassembling the entire pump body.

Benefits of technology

This technology allows for the replacement of seals on the outside of the pump body without dismantling the entire pump body, simplifying the replacement process and reducing maintenance time and costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224380171U_ABST
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Abstract

The utility model relates to the technical field of shaft seal, disclose a kind of shaft seal structure and pump, for the sealing between the main shaft of pump and pump body, including shaft sleeve, fixed component and sealing assembly: shaft sleeve is used to be set in main shaft;Fixed component, including the first fixed seat and second fixed seat of being set in shaft sleeve, first fixed seat is used to connect pump body;Second fixed seat is detachably connected with first fixed seat;Sealing assembly includes annular first sealing element, first sealing element is set between first fixed seat, second fixed seat and shaft sleeve, and first sealing element includes at least two sealing portions arranged along the circumference of shaft sleeve.The shaft seal structure in the utility model is convenient to replace first sealing element.
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