Observation Wheel Bearing Segmentation for Large-Scale Support
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Solution Overview
Problem
Large observation wheels are constrained by the size limitations of giant rolling element bearings, which restrict the overall size of the attraction due to the availability of high-grade metallurgical components and the need for large seals to maintain lubrication and exclude contamination.
Innovation Solution
The implementation of a bearing system comprising a plurality of smaller, independently sealed roller bearings with diameters less than one quarter of the wheel hub's transverse dimension, supported by a tower hub with a larger diameter, allowing for the construction of larger observation wheels that can withstand high wind loads and provide more space for human habitation and event areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If giant rolling element bearings are used to support large observation wheels, then the observation wheel can be supported and rotated, but the size of the bearing components and seals becomes a constraint on the overall size of the attraction
Solution Approach 1:
The patent divides the single giant bearing system into multiple smaller roller bearings distributed around the wheel hub. Each smaller bearing has a diameter less than one quarter of the wheel hub's transverse dimension, making them manufacturable with available high-grade metallurgical components while collectively supporting the large observation wheel structure.
2Reliability
If giant rolling element bearings are used, then the observation wheel can be supported, but large seals are required to hold lubricant and exclude contamination
Solution Approach 1:
The patent replaces the single large seal requirement with multiple smaller independently sealed roller bearings. Each small bearing can be independently sealed to hold lubricant and exclude contamination, achieving the same reliability function without the size constraints imposed by a giant seal.
3Length of moving object
If smaller roller bearings are used instead of giant bearings, then size constraints are reduced and larger observation wheels can be constructed, but the bearing system complexity increases
Solution Approach 1:
The patent employs multiple smaller roller bearings distributed around the wheel hub, with each bearing having a diameter less than one quarter of the wheel hub's transverse dimension. This segmentation allows construction of larger observation wheels while keeping individual bearing components manageable in size and number.
Solution Approach 2:
The patent transitions from a single-point bearing support to a distributed array of bearings around the wheel hub circumference. This spatial distribution across multiple dimensions allows the system to support larger wheels without requiring proportionally larger individual bearing components.
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 size constraints, enhances manufacturability and durability, and enables the construction of larger observation wheels capable of withstanding high wind forces while providing additional space for observation decks and human habitation.
Implementation Method 1
a plurality of roller bearings disposed between the tower hub and the wheel hub to rotatably support the observation wheel relative to the tower
Implementation Method 2
each of the plurality of roller bearings is independently sealed
Data Source
AI summary
Systems and related methods related to structures with large-scale rotatable elements. Some of the present systems comprise: a tower defining a plurality of human-habitable spaces; a tower hub coupled to the tower and having a transverse dimension of at least 50 feet; an observation wheel rotatably coupled to the tower and having a central wheel hub; and one or more bearings disposed between the tower hub and the wheel hub to rotatably support the observation wheel relative to the tower.