Brake Disc Hub Coupling Device Torque Distribution
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Solution Overview
Problem
Existing brake disc/hub connections face issues with uneven distribution of braking torque, leading to mechanical stresses and potential jamming due to thermal expansion, which affects the security and service life of the components.
Innovation Solution
A brake disc/hub connection featuring a coupling device, such as a coupling ring, that couples the hub's drivers via a dimensionally stable mechanism, ensuring even torque distribution and axial securing of the brake disc, using fastening bolts and recesses for intermediate elements to enhance stability and prevent jamming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the brake disc is connected to the hub by means of tooth-like, interlocking elements for torque transmission, then the braking torque can be transmitted from the brake disc to the hub, but the brake disc can become loose radially relative to the hub due to heat build-up during braking
Solution Approach 1:
The connection is divided into two independent functional parts: tooth-like interlocking elements for torque transmission in the tangential direction, and a separate axial securing mechanism (coupling device with fastening bolts) for radial positioning. This segmentation allows each component to optimize its specific function without compromising the other.
Solution Approach 2:
A coupling device acts as an intermediary component between the brake disc and hub. This coupling device includes a coupling ring that couples the drivers of the hub and is supported on the support elements of the brake disc, with fastening bolts that pass through the coupling ring to axially secure the brake disc, preventing radial loosening while maintaining torque transmission capability.
2Temperature
If intermediate elements are arranged between the drivers of the hub and support elements of the brake disc to prevent direct heat transfer, then thermal stress is reduced, but the structure becomes more complex
Solution Approach 1:
The coupling device serves multiple functions simultaneously: it provides axial securing of the brake disc, couples the hub drivers together for uniform torque distribution, and incorporates recesses that accommodate extensions of intermediate elements for thermal isolation. This multi-functionality reduces the need for separate components.
Solution Approach 2:
The coupling ring merges several functions into a single component: it acts as a coupling element for the hub drivers, provides a mounting structure for fastening bolts, and includes integrated recesses for receiving intermediate element extensions. This consolidation simplifies the overall structure while maintaining thermal protection.
3Duration of action of stationary object
If the drivers of the hub are coupled via a coupling device for uniform torque distribution, then the service life increases, but the device complexity increases
Solution Approach 1:
The coupling mechanism is segmented into distinct functional components: the coupling ring for uniform torque distribution, fastening bolts for axial securing, and recesses for intermediate elements. This segmentation allows each component to be optimized independently and simplifies manufacturing and assembly.
Solution Approach 2:
The coupling device is designed to be self-securing through the interaction of its components: the coupling ring couples the hub drivers, the fastening bolts pass through the coupling ring to secure the brake disc axially, and the recesses automatically accommodate the intermediate element extensions, creating a self-aligning, self-securing mechanism.
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 achieves a more uniform distribution of braking torque, increasing the security and service life of the brake disc and hub, while allowing for easier axial securing and reducing thermal stress-related issues.
Implementation Method 1
transmission of the braking torque from the brake disc to the hub
Implementation Method 2
axial securing of the brake disc in the direction of the axis of rotation
Implementation Method 3
insert through which a direct heat transfer is prevented
Implementation Method 4
a coupling device which is dimensionally stable in the circumferential direction of the brake disc
Data Source
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AI summary
A brake disc/hub connection is described in which a hub (2) has drivers (23) extending axially from a wheel flange (21) of the hub (2) to an axis of rotation (A) common to the hub (2) and a brake disc (3), which engage tooth-like between support elements (33) arranged on the inner circumference of the brake disc (3) and extending in the direction of the axis of rotation (A), wherein the drivers (23) of the hub (2) are coupled to each other via a coupling device which is supported on the support elements (33) of the brake disc (3) and is dimensionally stable in the circumferential direction of the brake disc (3).