主轴密封结构及作业机械

By designing a spindle sealing structure, positive pressure is generated by the rotation of the outer cone sleeve and the dustproof impeller. Combined with multi-layer sealing, the problem of dust entering the bearing cylinder is solved, and stable operation of the bearing and spindle is achieved.

CN116201896BActive Publication Date: 2026-07-17SANY HEAVY EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SANY HEAVY EQUIP CO LTD
Filing Date
2023-02-09
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, dust can easily enter the bearing housing through the sealing mechanism, affecting the operation of the bearing and spindle, leading to increased bearing temperature and wear.

Method used

A spindle sealing structure was designed, including an outer conical sleeve, a dustproof impeller, a bearing sleeve, first and second end covers, and a sealing cover. The rotation of the outer conical sleeve and the dustproof impeller creates positive pressure in the chamber, reducing dust entry. Combined with the multi-layer sealing structure, the sealing effect is improved.

Benefits of technology

It effectively reduces the risk of dust entering the bearing housing, ensures long-term stable operation of the bearing and spindle, and prevents bearing temperature rise and wear.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及密封结构技术领域,提供一种主轴密封结构及作业机械。主轴密封结构包括主轴、转子总成、外锥套、防尘叶轮、轴承筒以及第一端盖;转子总成与主轴固定连接;外锥套与转子总成固定连接,外锥套设置有安装环槽;防尘叶轮固定于安装环槽内;轴承筒套设于主轴外侧,轴承筒与主轴之间设置有轴承;第一端盖设置于轴承筒,第一端盖包括固定部和延伸筒部,固定部与轴承筒固定连接,延伸筒部一端与固定部固定连接,另一端延伸至安装环槽内,且位于防尘叶轮的外侧。本发明提供的主轴密封结构及作业机械,能有效减小灰尘进入该腔室内的风险,进而对轴承筒和位于轴承筒内的轴承起到良好的防护效果,保证轴承和主轴能够长期稳定工作。
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