Motor shaft seal
By designing a motor shaft seal containing a conductive structure and an electromagnet, the motor shaft offset problem caused by current interference is solved, the current derivation and shaft protection are achieved, and the service life is extended.
CN119727246AActive Publication Date: 2025-03-28GUANGDONG POWER GRID CO LTD +1
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Patent Information
- Application Number
- CN202411917760.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2044-12-24
AI Technical Summary
Technical Problem
The existing motor shaft seal cannot lead to current interference, causing the motor drive shaft to shift and long-term friction, causing damage.
Method used
A motor shaft seal is designed, including a housing, a first conductive structure, a first electromagnet, a second electromagnet, a first elastic reset member and a conductive wire. Through the mutual attraction of the first electromagnet and the second electromagnet, the first conductive structure abuts the motor shaft and leads to current interference.
Benefits of technology
Effectively prevent motor shaft deviation, avoid long-term friction damage, and improve the service life of motor shaft.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention provides a motor shaft seal which is characterized in that a first avoiding through hole is formed in a shell and used for avoiding a motor shaft, and a containing space communicated with the first avoiding through hole is formed in the shell; the first conductive structure is movably arranged on the shell, conductively connected with the shell and located in the containing space, and the first conductive structure has a first conductive state abutting against the motor shaft and a first separated state separated from the motor shaft; the first electromagnet is arranged on the first conductive structure, so that when current flows through the motor shaft, the first conductive structure is switched from a first separation state to a first conductive state, and the second electromagnet and the first electromagnet are oppositely arranged and located on the two sides of the motor shaft; the first elastic reset piece is arranged between the first conductive structure and the inner wall of the shell, so that the first conductive structure is kept in a first separated state; and the conduction wire is arranged on the outer wall of the shell. According to the technical scheme, the problem that the motor shaft deviates is effectively solved.
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