Freewheeling Cage Interlock Using Folded Double-Thickness Rim
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Solution Overview
Problem
Existing freewheeling mechanisms are complex to manufacture and lack structural rigidity, which affects their ease of assembly and stability.
Innovation Solution
A freewheeling mechanism with a sheet metal cage featuring an integrally arranged coupling structure and a U-shaped folding area, where the coupling rim merges into a support portion, allowing for easy assembly and enhanced structural rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a coupling disk with a coupling structure is used to connect the sheet metal cage to the freewheeling member, then the connection stability is improved, but the manufacturing complexity increases
Solution Approach 1:
The coupling structure is integrated directly into the sheet metal cage, merging the previously separate coupling disk and cage into a single component. This eliminates the need for additional coupling disks while maintaining the interlocking connection functionality, thereby improving connection stability without increasing manufacturing complexity.
Solution Approach 2:
The sheet metal cage is designed to perform multiple functions: it provides structural support, guides the clamping parts, and incorporates the coupling structure for connection to the freewheeling member. This multi-functionality eliminates the need for separate coupling components, simplifying manufacturing while ensuring stable connection.
2Reliability
If a coupling disk with a coupling structure is used to connect the sheet metal cage to the freewheeling member, then the connection stability is improved, but the assembly ease deteriorates
Solution Approach 1:
By integrating the coupling structure directly into the sheet metal cage, the number of components to be assembled is reduced. The cage and coupling structure become a single unit that can be assembled in one operation, eliminating the need to separately install coupling disks and improving assembly ease while maintaining connection stability.
3Stability of the object's composition
If the coupling rim has a double material thickness with support portion and coupling structure, then the structural rigidity is improved, but the manufacturing complexity increases
Solution Approach 1:
The support portion and coupling structure are merged into a single integrally formed coupling rim on the sheet metal cage. This monolithic construction provides the necessary structural rigidity through the double material thickness while simplifying manufacturing by eliminating the need to assemble multiple separate components.
Solution Approach 2:
The coupling rim is pre-formed with the integrated support portion and coupling structure during the cage manufacturing process. This preliminary formation of the rigid structure eliminates the need for subsequent assembly operations, maintaining structural rigidity while reducing manufacturing complexity.
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 design facilitates easy manufacturing and increases stability, ensuring a robust and reliable connection between the sheet metal cage and the freewheeling member.
Implementation Method 1
the coupling rim has a U-shaped folding area, and the support portion in the folding area merges into the coupling portion
Data Source
AI summary
A freewheeling mechanism includes a freewheeling member designed as an inner part including a clamping structure, a plurality of clamping parts arranged on the clamping structure, and a sheet metal cage placed on the freewheeling member for spacing the clamping parts in a direction of revolution. The sheet metal cage includes a coupling rim on a first axial side. The coupling rim comprising includes a support portion extending radially outward, a U-shaped folding area, a coupling portion merged into the support portion at the U-shaped folding area and adjoining the support portion such that the coupling rim has a double material thickness, and a coupling structure, arranged integrally on the sheet metal cage and formed on an inner circumference of the coupling portion for interlocking coupling to the clamping structure such that the sheet metal cage is held on the freewheeling member for conjoint rotation in the direction of revolution.