Brake Disk Securing Ring Spring Element Retention
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Solution Overview
Problem
Existing brake disk designs face challenges in securely attaching a friction ring to a brake disk hat, particularly when using different materials and varying designs, as traditional securing methods may not provide adequate retention or compensate for manufacturing tolerances.
Innovation Solution
A securing ring with spaced-apart spring elements that interact with projections on the brake disk hat, providing secure retention and compensating for manufacturing tolerances, with optional configurations allowing every second projection to be assigned a spring element for uniform force distribution and integral spring elements for simplified production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a securing ring with spring elements is used to retain the friction ring on the brake disk hat, then the reliability of the connection is improved and manufacturing tolerances are compensated, but the device complexity increases
Solution Approach 1:
The securing ring is divided into multiple spring elements spaced apart circumferentially, with each spring element independently interacting with corresponding projections on the brake disk hat. This segmentation allows each spring element to compensate for local manufacturing tolerances while distributing the retention function across multiple points, thereby improving overall connection reliability without requiring a monolithic complex structure
Solution Approach 2:
The spring elements are designed with elastic properties that allow them to deform and adapt to variations in projection positions caused by manufacturing tolerances. By changing the physical state of the securing ring from rigid to elastic, the system automatically compensates for dimensional variations, improving reliability while keeping the structural design relatively simple
2Manufacturing precision
If spring elements are spaced apart circumferentially to interact with projections, then manufacturing tolerances are compensated and retention is improved, but the number of components and assembly complexity increases
Solution Approach 1:
The securing ring is segmented into multiple spring elements spaced circumferentially, where each spring element corresponds to specific projections on the brake disk hat. This segmentation enables localized tolerance compensation at each interaction point while maintaining an overall simple annular structure for the securing ring itself
Solution Approach 2:
The spring elements serve multiple functions simultaneously: they provide elastic retention force, compensate for manufacturing tolerances in projection positioning, and distribute mechanical loads across multiple contact points. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity
3Strength
If the securing ring is welded to the brake disk hat, then the connection strength is improved, but the adaptability to different brake disk hat designs is reduced
Solution Approach 1:
The securing ring uses elastic spring elements that can dynamically adapt to different geometries of brake disk hat projections through deformation. Unlike rigid welded connections, the spring elements can adjust their configuration to accommodate varying projection shapes and positions, maintaining strong retention while providing versatility across different brake disk hat designs
Solution Approach 2:
By changing the connection method from permanent welding to elastic mechanical retention, the system gains adaptability to different designs. The spring elements can modify their elastic parameters (deformation amount, contact force) to suit different projection configurations, thereby achieving both strong connection and design versatility
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 ensures a secure, reliable attachment of the friction ring to the brake disk hat, accommodating different materials and designs, while allowing for manufacturing tolerance compensation and preventing unintended release.
Implementation Method 1
the securing ring comprises a number of spring elements which are spaced apart from one another in the circumferential direction of the securing ring, the spring elements and at least some of the projections of the brake disk hat being configured in such a way that, in a target assembly position of the securing ring, the spring elements interact with the projections which correspond with them in such a way that they retain the securing ring on the brake disk hat
Data Source
AI summary
A brake disk includes a friction ring, a brake disk hat and a securing ring. The friction ring has an inner side, on which a plurality of projections and intermediate spaces for connecting the friction ring to the brake disk hat are disposed. The brake disk hat has, on its outer side, intermediate spaces and projections which correspond with the projections and intermediate spaces of the friction ring and are shaped to engage in a positively locking manner into the projections and intermediate spaces of the friction ring, with the result that the friction ring is connected fixedly to the brake disk hat so as to rotate therewith. The securing ring secures the friction ring on the brake disk hat in the axial direction. The securing ring includes a number of spring elements which are spaced apart from one another in the circumferential direction of the securing ring.