Axially Adjustable Cable Reel Hub Coupling
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Solution Overview
Problem
Cable reels struggle to accommodate cable coils of varying sizes due to shifting dimensions during installation, leading to issues with fitting and payout.
Innovation Solution
A cable reel design featuring axially adjustable coupling mechanisms with first and second flanges, including elongated and truncated hub portions with flexible segments, and a braking gear system to securely hold and manage cable coils of different sizes, ensuring stable payout.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed hub structure is used on cable reels, then the structure is simple and easy to manufacture, but it cannot accommodate cable coils of varying sizes
Solution Approach 1:
The hub is divided into two separate parts: a first hub portion attached to the first flange and a second hub portion attached to the second flange. These segments can be independently positioned axially to accommodate different cable coil sizes, resolving the contradiction between adaptability and structural simplicity.
Solution Approach 2:
The coupling mechanism between the first and second hub portions is made adjustable in the axial direction, allowing the distance between them to vary. This dynamic adjustment capability enables the hub to adapt to different cable coil dimensions while maintaining a relatively simple overall structure.
2Adaptability or versatility
If the hub portions are rigid and fixed, then the manufacturing precision is high, but the adaptability to different cable sizes is poor
Solution Approach 1:
The axial distance between the first and second hub portions is made variable through adjustable coupling mechanisms (threaded connections, snap connections, or ratcheting mechanisms). This parameter change allows the hub to adapt to different cable coil sizes while maintaining sufficient manufacturing precision through defined engagement features.
3Adaptability or versatility
If the flanges are fixed at a constant distance, then the device structure is simple, but it cannot accommodate cable coils that shift dimensions
Solution Approach 1:
The distance between the first and second flanges is made dynamically adjustable through the axially adjustable coupling mechanism connecting the hub portions. This allows the reel to adapt to cable coils that have shifted dimensions while keeping the coupling mechanism relatively simple through standardized connection types.
Solution Approach 2:
The axially adjustable coupling mechanism serves multiple functions: it adjusts the flange distance to accommodate different cable sizes, provides secure coupling between hub portions, and maintains structural integrity. This multi-functionality reduces the need for additional specialized components.
4Reliability
If no braking mechanism is provided, then the device complexity is low, but the cable payout control is poor leading to overpayout
Solution Approach 1:
The braking mechanism uses the rotational motion of the reel itself to generate braking force through friction between the braking surfaces. This self-service approach provides reliable cable payout control without requiring external power sources or complex control systems.
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 allows for secure installation and payout of cable coils of varying sizes by accommodating different diameters through adjustable coupling and providing friction to prevent overpayout, enhancing usability and efficiency in cable installation.
Implementation Method 1
The truncated wall includes a tapered outer surface for engaging and expanding the plurality of flexible segments
Implementation Method 2
The engagement of the gear members provides a friction for cable payoff
Data Source
AI summary
A cable reel is described. The cable reel includes first and second opposing flanges. The first flange has a first hub portion and the second flange has a second hub portion. The first and second hub portions are configured to be axially aligned and configured to mate with one another to support cable. The cable reel includes an axially adjustable coupling mechanism configured to couple the first hub portion to the second hub portion at a plurality of stable axial positions. The first hub portion is rotationally fixed to the second hub portion at the plurality of axial positions.