Integrated Bearing Unit Assembly for Speed Reducer Motor Alignment
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Solution Overview
Problem
The assembly of multiple components in speed reducer-equipped motors, such as bearings and dampers, is complex and requires sequential assembly, leading to procedural checks and complicated work processes.
Innovation Solution
A bearing unit is integrated with a thrust damper, shaft receiver component, metal holder, and oilless metal, which are assembled together before being incorporated into the gearbox, simplifying the assembly by allowing a single incorporation and termination of the light press-fitted state within the gearbox, enabling slidable components and self-alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple components (bearing, damper, etc.) are assembled sequentially in the gearbox, then each component can be individually positioned, but the assembly procedure becomes complex and time-consuming
Solution Approach 1:
The patent combines multiple components (thrust damper, shaft receiver component, metal holder, and oilless metal) into a single integrated bearing unit assembly. This merging allows all components to be pre-assembled and positioned together as one unit, dramatically reducing assembly time while maintaining positioning precision through the integrated design of the metal holder that holds all components in their correct relative positions.
2Adaptability or versatility
If multiple components are handled individually, then each component can be independently adjusted, but the assembly work becomes complicated
Solution Approach 1:
The patent merges multiple adjustable components into a unified assembly structure where the metal holder integrates the thrust damper, shaft receiver component, and oilless metal. This reduces assembly complexity by treating them as one unit, while the shaft receiver component's light press-fit design still allows for adjustment and termination of the press-fitted state within the gearbox to achieve proper positioning.
Solution Approach 2:
The shaft receiver component is designed with a dynamic press-fit relationship to the metal holder, allowing it to be light press-fitted during assembly and then adjusted by pressing toward one side to terminate the light press-fitted state. This dynamic design enables adaptability in positioning while simplifying the overall assembly process.
3Ease of manufacture
If components are integrated before incorporation into the gearbox, then assembly procedure is simplified, but component adjustment flexibility is reduced
Solution Approach 1:
The integration is designed dynamically rather than rigidly. The shaft receiver component is light press-fitted to the metal holder, creating a temporarily fixed but adjustable connection. This allows the components to be integrated for simplified assembly while maintaining adjustment flexibility through the ability to press the shaft receiver component toward one side to terminate the light press-fitted state and achieve proper positioning within the gearbox.
Data Source
AI summary
A bearing unit includes: a thrust damper extendable in an axial direction of a shaft placed in a gearbox, the movement of which toward one side in the axial direction is regulated; a shaft receiver component held by the thrust damper on the other side of the thrust damper in the axial direction; a metal holder that holds the shaft receiver component in such a manner as to be detachable in the axial direction; and an oilless metal held by the metal holder and placed on the other side of the shaft receiver component, in which the thrust damper, the shaft receiver component, the metal holder, and the oilless metal are integrated all together before being incorporated into the gearbox.