Nested Bearing Wheel Structure for Stable Spherical Robot Motion
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Solution Overview
Problem
The structural stability of rotating wheels in spherical robots is poor, leading to deviations in motion trajectory, which affects their performance in harsh environments.
Innovation Solution
A rotating wheel apparatus comprising a rotating assembly, a bearing, and a supporting base, where the bearing is accommodated in an accommodating groove and connected to the rotating assembly, providing rotational stability and reducing friction, while the supporting base connects to external structures for enhanced support and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple rotating wheel structure is used, then the device complexity is reduced, but the structural stability deteriorates leading to motion trajectory deviations
Solution Approach 1:
The bearing is nested within the accommodating groove of the rotating assembly, creating a compact hierarchical structure. The inner ring of the bearing is sleeved on the supporting portion while the outer ring is sleeved on the transmission portion, with locking members nested within mounting holes to secure the structure. This nesting arrangement improves structural stability without significantly increasing overall device complexity.
2Stability of the object's composition
If a bearing is added to improve rotational stability, then the structural stability is improved, but the device complexity increases
Solution Approach 1:
The bearing is integrated with the rotating assembly structure where the inner ring is sleeved on the supporting portion and the outer ring is sleeved on the transmission portion. The locking members are inserted into mounting holes that are part of the existing structure, merging the bearing installation with the existing rotating wheel components rather than adding completely separate elements.
3Ease of manufacture
If traditional connection methods are used, then the assembly is simple, but the friction increases reducing energy efficiency
Solution Approach 1:
The bearing acts as an intermediary element between the supporting portion and the transmission portion, replacing direct frictional contact with rolling element contact. This mediator reduces friction and improves energy efficiency while maintaining assembly simplicity through the sleeve-and-lock design that integrates with existing mounting structures.
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 improves the stability and energy efficiency of the rotating wheel, ensuring stable motion and reducing assembly complexity, while maintaining a clean and aesthetically pleasing design for the robot.
Implementation Method 1
the bearing is accommodated in the accommodating groove and connected to the rotating assembly... providing rotational stability and reducing friction
Data Source
AI summary
Disclosed are a rotating wheel apparatus, a driving wheel and a robot. The rotating wheel apparatus includes: a rotating assembly, a bearing and a supporting base. The rotating assembly is provided with an accommodating groove. The bearing is accommodated in the accommodating groove and connected to the rotating assembly. The supporting base is close to a notch of the accommodating groove, the supporting base is connected to the bearing, so that the rotating assembly is rotationally connected to the supporting base.