一种用于悬臂式叶轮的锁紧防松脱装置

By combining rigid mechanical stops and hydrodynamics, and designing anti-rotation pins and anti-rotation washers, the problem of loosening of cantilever impellers due to vibration is solved, achieving a reliable anti-loosening effect throughout the entire cycle, reducing the risk of equipment accidents and maintenance costs.

CN121854472BActive Publication Date: 2026-07-17BEIJING FRONTIER POWER TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING FRONTIER POWER TECH CO LTD
Filing Date
2026-01-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

When the cantilever impeller rotates at high speed, it is prone to loosening due to vibration, which can cause the nut to come loose, leading to impeller movement and equipment accidents. Existing anti-loosening measures have problems such as large space occupation, poor high temperature resistance, or difficulty in disassembly.

Method used

By combining rigid mechanical locking with fluid dynamics, a dual anti-loosening mechanism is formed through the design of anti-rotation pins and anti-rotation washers. Fluid energy is used to generate a tightening torque, which, combined with rigid mechanical locking, achieves anti-loosening.

Benefits of technology

It achieves reliable anti-loosening effect throughout the entire cycle under high-frequency vibration and frequent start-stop conditions. It has a compact structure, is easy to maintain, reduces maintenance costs, and avoids equipment accidents caused by loose nuts.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121854472B_ABST
    Figure CN121854472B_ABST
Patent Text Reader

Abstract

本发明提供了一种用于悬臂式叶轮的锁紧防松脱装置,涉及离心式风机、泵等设备技术领域。装置采用“静‑动”双重防松机制:静态上,通过锁紧螺母端面的防转销钉插入叶轮盲孔实现刚性机械止动;动态上,通过套设在螺母外、带有非对称结构的防转垫圈,利用旋转流体产生持续的、趋向拧紧的辅助扭矩。双重机制协同作用,并由弹性挡圈确保销钉不退出。该结构高度集成、空间紧凑,防松性能远超传统方法,且拆装维护方便,所有部件可重复使用,特别适用于高速、重载、强振动的离心风机、泵等设备的悬臂叶轮锁紧,极大地提升了设备运行的安全性与可靠性。
Need to check novelty before this filing date? Find Prior Art