Split Tooth Splined Brake Disc Hub Connection
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Solution Overview
Problem
The existing splined connections between brake discs and hubs in heavy-duty vehicles are prone to corrosion, making it difficult to remove the brake disc from the hub, often requiring specialized tools or even cutting/breaking the disc due to high attachment forces.
Innovation Solution
A splined portion with resiliently movable tooth portions and a tensioning mechanism that adjusts the circumferential distance between teeth, allowing for reduced contact forces during removal, facilitating the detachment of the brake disc from the hub.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a splined connection is used to connect brake disc and hub, then the brake disc can be firmly attached to the hub for momentum transfer, but corrosion causes the splined portions to attach to one another requiring substantial force for removal
Solution Approach 1:
The teeth of the splined portion are segmented into two separate tooth portions that can move independently. This segmentation allows the tooth portions to be resiliently movable towards and away from each other, enabling the connection to be firmly attached during operation but easily separated when removal is needed by adjusting the circumferential distance between the tooth portions.
Solution Approach 2:
The tooth portions are designed to be resiliently movable, transforming the static splined connection into a dynamic one. The tensioning means allows adjustment of the circumferential distance between tooth portions, enabling the connection to adapt between a tight fitted state for reliable momentum transfer and a loosened state for easy removal, resolving the contradiction between firm attachment and ease of removal.
2Ease of operation
If special tools are used to remove corroded brake discs, then removal may be enabled, but the process becomes complex and in some cases cutting or breaking is still required
Solution Approach 1:
The brake disc connection system incorporates built-in removal functionality through the tensioning means and resiliently movable tooth portions. The system serves itself by providing an integrated mechanism that allows the brake disc to be easily removed without requiring external specialized tools, complex procedures, or destructive methods. The tooth portions can be resiliently moved apart using the tensioning means, creating natural separation points that eliminate the need for cutting or breaking.
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
Enables easy and efficient removal of the brake disc from the hub by adjusting contact forces, reducing the need for specialized tools and preventing damage to the brake disc.
Implementation Method 1
at least one, preferably a plurality, of the teeth of the splined portion is split into at least two tooth portions being resiliently movable towards and away from each other
Implementation Method 2
The splined portion further comprises a tensioning means adapted to releasably adjust the circumferential distance between the two tooth portions
Data Source
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AI summary
A splined portion (10) connected to one out of a brake disc and a hub to which the brake disc is to be connected. The splined portion comprises teeth (30) adapted to mesh with grooves in a second splined portion (20) connected to the other of said brake disc and hub, and extends annularly about an axially extending central axis. At least one, preferably a plurality, of the teeth (30) of the splined portion (10) is split into at least two tooth portions (31, 32) being resiliently movable towards and away from each other in a circumferential direction of the splined portion (10). The splined portion (10) further comprises a tensioning means (40) adapted to releasably adjust the circumferential distance between the two tooth portions (31, 32).