Spiral Spring Wheel Alloy Steel Torsion Design
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Solution Overview
Problem
Current non-pneumatic tires lack sufficient pliability and durability to support heavy vehicle weights and provide a comfortable ride, as existing steel and steel alloy products do not meet the required level of elasticity and durability, especially in larger wheel sizes.
Innovation Solution
The spiral spring wheel design incorporates a spiral shape for torsion springs and a leaf spring assembly made of alloyed steel, which increases the length of the springs, enhancing pliability and durability, while the use of alloyed steel provides strength, toughness, and resistance to corrosion, allowing for effective impact force absorption and traction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If non-pneumatic tires made of synthetic resin material are used, then they provide a durable solution, but they lack sufficient pliability and elasticity to support heavy vehicle weights and provide a comfortable ride
Solution Approach 1:
The patent combines steel alloy materials with specific structural configurations (spiral springs, leaf springs, torsion springs) to create a composite wheel system that achieves both strength and pliability. The steel alloy provides durability and strength, while the spring mechanisms provide the necessary elasticity and pliability to support heavy weights and absorb impacts.
Solution Approach 2:
The wheel is divided into multiple functional segments including spiral springs, leaf springs, and torsion springs. Each segment performs a specific function related to load distribution, shock absorption, and elasticity, collectively providing both strength and pliability that neither material alone could achieve.
2Strength
If existing steel and steel alloy products are used for non-pneumatic tires, then they provide strength, but they do not meet the required level of elasticity and durability, especially in larger wheel sizes
Solution Approach 1:
The patent employs dynamic spring mechanisms (spiral, leaf, and torsion springs) that can dynamically adjust to varying loads and impacts. This dynamic structure allows the wheel to maintain both strength and elasticity across different operating conditions, particularly for larger wheel sizes where static steel structures fail to provide sufficient elasticity.
Solution Approach 2:
The spiral spring configuration uses curved geometric forms to efficiently distribute stress and enhance elasticity. The curved geometry of the spiral springs provides mechanical advantage for absorbing impacts while maintaining structural strength, solving the contradiction between strength and reliability in larger wheel applications.
3Adaptability or versatility
If the spiral spring wheel design is implemented, then pliability is increased over a larger radial distance, but the device complexity increases
Solution Approach 1:
The patent merges multiple spring types (spiral, leaf, and torsion springs) into a single integrated wheel structure. While each component adds complexity, their combined function achieves the desired pliability over a larger radial distance that would be impossible with a single mechanism, justifying the increased structural complexity through superior performance.
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 spiral spring wheel achieves increased pliability over a larger radial distance, enabling it to support heavy vehicle weights comfortably and maintain efficiency in power transfer, reducing the likelihood of flat tires and extending the product's lifespan, while providing a durable and environmentally friendly solution.
Implementation Method 1
The spiral spring wheel design incorporates a spiral shape for torsion springs and a leaf spring assembly made of alloyed steel, which increases the length of the springs, enhancing pliability and durability
Implementation Method 2
the use of alloyed steel provides strength, toughness, and resistance to corrosion
Data Source
AI summary
A spiral spring wheel includes a ring spring and a leaf spring assembly surrounding an outer surface of the ring spring. A shoe is placed over the leaf spring assembly. The shoe sidewalls extend past the leaf spring assembly and tuck under the ring spring. Each torsion spring in a first plurality of torsion springs extends in a clockwise spiral shape from a flange to an inner surface of the ring spring. Each torsion spring in a second plurality of torsion springs extends in a counterclockwise spiral shape from the flange to the inner surface of the ring spring.