Floating Gear Damper Assembly for Self-Aligning Engagement
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Solution Overview
Problem
Existing gear dampers face issues with gear misalignment and binding due to manufacturing tolerances and variations, leading to inconsistent engagement and wear over time.
Innovation Solution
A floating damper design with a bearing surface and guide member that ensures proper alignment between gears, using a damper housing with a rotatable shaft and a bearing surface in fixed position, and a guide surface on the associated component to maintain engagement and compensate for tolerance stack-up and build variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional gear dampers are used with fixed mounting, then the structure is simple, but gear misalignment and binding occur due to manufacturing tolerances
Solution Approach 1:
The damper housing is designed to float or move relative to the mounting component, transforming the rigid fixed mounting into a dynamic adjustable system. This allows the gear damper to self-align with the associated component, compensating for manufacturing tolerances and preventing gear binding while maintaining structural simplicity
Solution Approach 2:
The invention changes the positional parameter of the damper housing from fixed to variable, enabling it to adjust its location within the mounting component. This parameter change allows the gear alignment to be optimized dynamically, resolving the contradiction between manufacturing precision and device complexity
2Manufacturing precision
If tight tolerance ranges are used for gear manufacturing, then gear engagement is improved, but manufacturing cost and complexity increase
Solution Approach 1:
The floating mounting structure enables the gear damper to self-align with the associated component through its own movement, eliminating the need for tight manufacturing tolerances on the gears themselves. The system self-corrects for tolerance variations, making manufacturing easier while maintaining good gear engagement
Solution Approach 2:
By changing the mounting parameter from fixed to floating, the system transfers the alignment function from the gear manufacturing process to the mounting structure, allowing standard tolerance ranges to be used while still achieving proper gear engagement
3Strength
If gears are placed too far apart to avoid binding, then gear wear is reduced, but engagement consistency deteriorates
Solution Approach 1:
The floating mounting allows the gear damper to dynamically adjust its position to maintain optimal gear engagement. This dynamic adjustment ensures consistent engagement while preventing binding, thereby maintaining both gear durability and engagement reliability simultaneously
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
The solution effectively minimizes gear drift, maintains proper alignment, and prevents binding, ensuring consistent engagement and operation even with variations in manufacturing tolerances and wear.
Implementation Method 1
Resistance to a rotation of the rotor is provided in part by a viscous fluid contained in a chamber within the housing, through which viscous fluid the rotor must spin
Data Source
AI summary
A floating damper assembly operates between first and second associated components. A damper is adjustably mounted in the first component and includes a damper gear engaged with a gear on the second component. The second component defines a guide surface and the damper has a bearing surface engaging the guide surface.