Outer-Rotor Motor Bearing Assembly Adjustable Slit Fixation
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Solution Overview
Problem
Conventional motor bearing assemblies experience noise and reduced lifespan due to increasing gaps between balls and races caused by friction, leading to potential bearing failure.
Innovation Solution
A bearing assembly with an adjustable slit in the bearing seat allows for secure fixation of the outer race, enabling misalignment of the inner and outer races to re-establish secure coupling of the balls, using a positioning member to adjust the slit and apply pressure via an elastic member like a rubber ring or spring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an adjustable slit is added to the bearing seat, then the bearing can be securely fixed and gaps can be adjusted, but the device complexity increases
Solution Approach 1:
The bearing seat is segmented to include an adjustable slit rather than a completely fixed structure. This segmentation allows the bearing to be securely positioned while maintaining the simplicity of the overall design, as only a specific portion (the slit) is made adjustable rather than the entire bearing seat structure
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces noise during motor operation and extends the lifespan of the bearings by ensuring secure coupling of the balls with the races, even after gaps form due to friction, through adjustable slit mechanisms.
Implementation Method 1
An elastic member is disposed between the cover and the outer race of the lower bearing
Data Source
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AI summary
A bearing assembly includes a bearing seat (1), at least one bearing (13) and a shaft (2). The bearing seat (1) includes a chamber (S), an assembly hole (11) and a shaft hole (12). The assembly hole (11) and the shaft hole (12) intercommunicate with the chamber (S). The bearing seat (1) has a slit (15) which is adjustable. The at least one bearing (13) is received in the chamber (S). The shaft (2) extends through the shaft hole (12) and the at least one bearing (13) and includes at least one abutment portion (21). The at least one bearing (13) abuts the at least one abutment portion (21). In addition, a motor including a bearing assembly is disclosed.