Brake Disc Hub Connection Using Segmented Intermediate Elements
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Solution Overview
Problem
The existing systems for attaching and detaching brake discs from hub devices face challenges in ease of removal and thermal conduction, as they tend to corrode firmly, making the process difficult and time-consuming.
Innovation Solution
A system featuring a hub device with protruding elements and intermediate elements that protrude into grooves on the brake disc, allowing pre-fitting of intermediate elements and clamping them between the brake disc and hub device for easy assembly and removal, while preventing extensive corrosion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the brake disc is directly fitted to the hub device to withstand great forces, then the connection strength is improved, but the ease of removal deteriorates due to firm corrosion
Solution Approach 1:
The connection between brake disc and hub device is segmented into multiple discrete intermediate elements distributed around the circumference. Each intermediate element creates a localized separation point, preventing continuous corrosion while maintaining overall connection strength through the collective action of multiple elements.
Solution Approach 2:
Intermediate elements are introduced as mediator components between the brake disc and hub device. These elements serve dual functions: transmitting torque and power while preventing direct metal-to-metal contact that would lead to firm corrosion, thereby enabling easier removal when needed.
2Ease of operation
If intermediate elements are provided between the brake disc and hub device, then the ease of removal is improved, but the device complexity increases
Solution Approach 1:
The intermediate elements are designed as simple, inexpensive components that can be easily replaced. Their straightforward geometry and material selection make them cost-effective, and their primary function of preventing corrosion and enabling removal justifies their presence without significantly increasing overall system complexity.
Solution Approach 2:
Rather than complicating the entire connection system, the intermediate elements are applied locally at specific circumferential positions where torque transmission and corrosion prevention are needed. This localized approach adds minimal complexity while achieving the desired ease of removal.
3Reliability
If intermediate elements are clamped between the brake disc and hub device, then the prevention of corrosion is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The intermediate elements are segmented into discrete units with simple geometries that are easier to manufacture with high precision compared to a single complex connection piece. Each element can be independently manufactured and positioned, reducing cumulative tolerance issues.
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
This solution enables rapid and easy assembly and disassembly of brake discs, reducing thermal conduction and preventing corrosion, thus simplifying the replacement process and maintaining performance under varying environmental conditions.
Implementation Method 1
intermediate elements for transmission of torque and power between the hub device and the brake disc
Data Source
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AI summary
The invention relates to a system comprising a hub device (4) and a brake disc (6) for vehicles, in which the brake disc (6) is provided at its inner radial peripheral surface (8) with at least two grooves (10, 12) directed radially outwards, the hub device (4) is provided with at least two protruding elements (14, 16) adapted to cooperation with said grooves (10, 12) in the brake disc (6), the system (2) further comprises at least two intermediate elements (18, 20) for transmission of torque and power between the hub device (4) and the brake disc (6), said intermediate elements (18, 20) are adapted to partly protruding into said grooves (10, 12) in the brake disc (6) in such a way that an intermediate element (18, 20) has its one end part (22) protruding into a groove (10) and its other end part (24) into an adjacent groove (12), and the end parts (22, 24) of the intermediate element are also united by a base portion (26) which is adapted to resting against the inner axial side surface (36) of the brake disc (6) during the fitting of the brake disc (6) on the hub device (4).