Constant Velocity Joint Outer Hub for Flexible Shaft Connection
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Solution Overview
Problem
Existing constant velocity joints require specific and costly transitional components for connection to surrounding components, limiting flexibility and increasing design complexity.
Innovation Solution
A constant velocity joint design featuring an inner hub with raceways and an outer hub with indentations, where the outer hub has a contacting structure and the shaft connection component has elevations that engage in these indentations for a non-positive connection, allowing for adaptable and cost-effective integration with various shaft sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If specific transitional components are used to connect the joint to shafts, then reliable force and torque transmission is achieved, but device complexity and costs increase
Solution Approach 1:
The outer hub is merged with the shaft connection component to form an integrated unit, eliminating the need for separate transitional components. The contacting structure with recesses is directly formed on the outer hub, allowing direct engagement with the shaft connection component's protrusions, thus reducing the number of parts while maintaining reliable force and torque transmission.
Solution Approach 2:
The outer hub is designed with dual functionality: it provides the contacting structure for ball raceways and simultaneously integrates the shaft connection function through the recesses. This multi-functional design allows the outer hub to connect to different shaft connection components (flange, pin, spline) without requiring additional transitional elements, reducing device complexity.
2Reliability
If separate transitional components are used for shaft connection, then secure attachment is achieved, but manufacturing costs increase
Solution Approach 1:
The shaft connection functionality is merged into the outer hub by forming recesses directly on it. This eliminates the need for separate transitional components, reducing the total part count and associated manufacturing costs while maintaining secure attachment through the engagement of protrusions with the recesses.
3Reliability
If specific transitional components are required, then proper connection is achieved, but design flexibility is reduced
Solution Approach 1:
The outer hub's contacting structure with recesses is designed to accommodate multiple types of shaft connection components (flange, pin, spline, or other geometries). This universal design allows the same outer hub to connect to various shaft configurations without requiring specific transitional components, thereby enhancing design flexibility and adaptability.
Data Source
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AI summary
The invention relates to a constant velocity joint (1) comprising an inner hub (2), an annular outer hub (3), several balls (4), and a shaft connection component (5). The outer hub (3) is in contact with the shaft connection component (5). The shaft connection component (5) has a fastening structure (52, 52', 53, 53') at one end region (50) facing the outer hub (3), which is connected to a contacting structure (31) of the outer hub (3). The outer hub (3) has recesses (31) as a contacting structure, and the shaft connection component (5) has protrusions (52) as a fastening structure. The protrusions (52) engage in the recesses (31). Raceways (30) and the recesses (31) of the outer hub (3) are arranged axially aligned with one another.