Brake Disc Shielding Device Stiffening via Segmented Connection Element
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Solution Overview
Problem
Conventional brake disc shielding devices face challenges in achieving cost-effective assembly with high fatigue strength, especially when large air passage openings are required, leading to potential vibration issues and increased assembly costs due to additional connections and reduced airflow.
Innovation Solution
A brake disc shielding device with a shielding body fixed to a brake carrier via a brake caliper screw connection, utilizing a connecting element with increased rigidity, which allows for indirect attachment to the axle part, enabling cost-effective assembly and enhanced stiffness without additional threads on the brake carrier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the shielding device is made larger to cover more brake disc area, then the coverage area increases, but the tendency to vibrate increases and fatigue strength decreases
Solution Approach 1:
The shielding device is divided into a shielding body and a separate connection element with bead structures. This segmentation allows the connection element to provide localized stiffening at critical points (where beads are introduced) without requiring the entire shielding body to be overly thick or complex, thus maintaining fatigue strength while covering large areas.
2Stability of the object's composition
If beads are introduced to stiffen the flat surface, then the rigidity increases, but air passage openings become very small which reduces air flow
Solution Approach 1:
The stiffening function is segmented from the main shielding body and placed in the connection element. This allows the shielding body to maintain large, unobstructed air passage openings for adequate cooling airflow, while the connection element provides the necessary rigidity through its bead structures at the attachment points.
3Strength
If additional intermediate elements are used for connection, then the assembly cost and complexity increase, but the fatigue strength improves
Solution Approach 1:
The connection element integrates multiple functions: it serves as both the connection interface to the brake carrier and the stiffening element with bead structures. This merging of functions eliminates the need for separate intermediate reinforcement elements, reducing assembly complexity while maintaining high fatigue strength.
Data Source
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AI summary
A brake disc shielding device for a disc brake of a motor vehicle, in particular a commercial vehicle. The brake disc shielding device (1) comprises a shielding body (10) which can be attached directly or indirectly to an axle component to which the disc brake is mounted by means of a brake caliper screw. The shielding body has a side wall section (11, 11a) for at least partially covering a brake disc of the disc brake on its side facing the vehicle body and a stiffening surface (14) which is oriented substantially perpendicular to the side wall section (11).The brake disc shielding device (1) further comprises a connecting element (2) whose wall thickness is greater than a wall thickness of the shielding body (10) and which has a first area (21) that is attached to the side wall area (11a), a second area (22) that is attached to the stiffening surface (14), and a third area (23) that is attached to a point on the shielding body (10, 610) where the shielding body (10) is fixed to the axle part in the assembled state by means of the brake caliper screw.