Elastic Cage Freewheeling Element With Integrated Load Support
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional freewheeling elements, such as sprag clutches, lack load-bearing capacity due to their non-bearing properties, necessitating additional mounting and the use of external metallic springs for support.
Innovation Solution
A freewheeling element incorporating a cage with higher elasticity than the sprags and rolling bodies, featuring equidistantly distributed rolling-body pockets and snap-fit connections, which integrates load-bearing capacity and eliminates the need for external springs, using materials like polyamide with glass-fiber reinforcement for the cage and metallic or ceramic materials for the sprags and rolling bodies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional sprag clutches are used, then the freewheeling functionality is achieved, but the load-bearing capacity is insufficient requiring additional mounting and external springs
Solution Approach 1:
The invention merges the load-bearing function with the freewheeling element itself by integrating rolling bodies into the cage structure. The rolling bodies are accommodated in rolling-body pockets formed in the cage, combining the support function and the freewheeling function into a single integrated component, eliminating the need for separate mounting structures and external springs.
Solution Approach 2:
The cage with rolling bodies serves itself by providing both the structural framework and the load-bearing capability. The rolling bodies automatically provide support when needed without requiring external assistance from separate springs or mounting structures, making the system self-sufficient.
2Strength
If metallic springs are used to provide load-bearing capacity, then the support function is achieved, but the device complexity increases
Solution Approach 1:
The invention extracts the spring-loading function from separate metallic spring components and transfers it to the cage structure itself. The cage is designed with elastic properties and rolling-body pockets that provide the necessary support function, eliminating the need for distinct spring components and reducing overall device complexity.
Solution Approach 2:
The cage is designed to perform multiple functions simultaneously: it provides the structural framework, accommodates the rolling bodies for load-bearing support, and enables the freewheeling mechanism. This multi-functionality eliminates the need for separate dedicated spring components.
3Device complexity
If the cage has high elasticity to act as a resilient element, then external springs can be dispensed with, but the positional stability of rolling bodies may be affected
Solution Approach 1:
The cage is designed with differentiated local properties: the overall cage structure has high elasticity to provide resilient support and eliminate external springs, while the rolling-body pockets are designed with specific geometric features (such as conical surfaces or latching mechanisms) that provide localized positional stability for the rolling bodies. This local differentiation resolves the contradiction between elasticity and stability.
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 provides enhanced load-bearing capacity and positional stability while maintaining the freewheeling functionality, allowing for uniform support and adjustable spring-loading behavior without the need for external springs, thereby improving the overall performance of the freewheeling element.
Implementation Method 1
The cage (10) has a higher level of elasticity than the sprags (20) and the rolling bodies (30)
Implementation Method 2
The rolling bodies (30) are accommodated in the rolling-body pockets (12) in a form-fitting manner, in particular in the manner of a latching or snap-fit connection
Data Source
AI summary
The invention relates to a freewheeling element comprising a cage, a plurality of clamping bodies, each of the clamping bodies being received in an associated clamping body pocket formed in the cage, and a plurality of rolling bodies, each of the rolling bodies being received in an associated rolling body pocket formed in the cage, the cage having a higher resilience than the clamping bodies and the rolling bodies.