Hubless Wheel Bearing Structure for Lighter, Quieter Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Hubless wheels face challenges in assembly and noise characteristics due to the large size of bearings, which also contribute to increased weight.
Innovation Solution
A hubless wheel design with improved bearing mounting structures, featuring adhesion members and grooves on the fixed and rotating wheels to secure the bearing in place, reducing lateral movement and enhancing assembly efficiency while minimizing weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If large size bearings are used in hubless wheels, then the bearing can support the structural requirements, but the weight of the wheel increases
Solution Approach 1:
The bearing mounting structure is segmented into multiple components: bearing, inner ring seating surface, outer ring seating surface, inner ring contact surface, outer ring contact surface, and adhesion members. This segmentation allows each component to be optimized independently, enabling the use of smaller bearings while maintaining structural support through distributed contact surfaces and adhesion mechanisms.
2Reliability
If large size bearings are used in hubless wheels, then the bearing can ensure smooth operation, but noise characteristics deteriorate
Solution Approach 1:
The patent applies local quality by creating specific contact surfaces with different functions: inner ring seating surface and outer ring seating surface for positional support, and inner ring contact surface and outer ring contact surface for rotational support. The adhesion members are strategically placed at specific locations to provide localized stabilization, reducing noise through precise contact point optimization rather than uniform structure enlargement.
3Weight of moving object
If complex bearing mounting structures are used to reduce bearing size, then weight decreases, but assembly complexity increases
Solution Approach 1:
The patent merges multiple functions into integrated structures: the inner ring seating surface and inner ring contact surface are combined on the fixed wheel, while the outer ring seating surface and outer ring contact surface are combined on the rotating wheel. The adhesion members are integrated with these surfaces to simultaneously provide positioning, support, and stabilization functions, simplifying the overall assembly process despite the sophisticated functionality.
Data Source
AI summary
A hubless wheel with an improved structure includes a fixed wheel (110), a rotating wheel (120) disposed outside the fixed wheel (110), and a bearing (130) disposed between the fixed wheel (110) and the rotating wheel (120) and having an inner ring (131) and an outer ring (132). An inner ring seating surface (111a) and an inner ring contact surface (111b) perpendicular thereto are provided on the fixed wheel (110), and an outer ring seating surface (121a) and an outer ring contact surface (121b) perpendicular thereto are provided on the rotating wheel (120).