Modular Brake Rotor Inserts for Wear-Resistant Braking Surfaces
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Solution Overview
Problem
Conventional brake rotors require frequent re-machining or replacement due to wear of friction surfaces during abrasive interactions, leading to inefficiencies and environmental concerns from debris.
Innovation Solution
A modular brake rotor assembly comprising a structural part and friction surface parts, with surface topography and wear-resistant coatings, allowing for enhanced adherent and adhesive friction through a transfer film layer, reducing wear and improving braking efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional brake rotors are used with abrasive friction surfaces, then braking force is generated through friction, but the friction surfaces wear down quickly requiring frequent re-machining or replacement
Solution Approach 1:
The brake rotor is divided into a structural part and separate friction surface parts that can be independently replaced. The friction surface parts are detachably attached to the structural part, allowing only the worn friction surfaces to be replaced while retaining the structural part, thus reducing material loss and extending overall rotor lifespan.
Solution Approach 2:
The friction surface parts are made from materials specifically selected for high friction and wear resistance properties, different from the structural part material. This composite approach allows the friction surfaces to withstand abrasive interactions longer, reducing wear and extending service life while maintaining structural integrity.
2Reliability
If friction surfaces are machined or replaced frequently, then wear is managed, but manufacturing time and resource consumption increase
Solution Approach 1:
By segmenting the brake rotor into a durable structural part and replaceable friction surface parts, the system allows quick replacement of only the worn friction surfaces without time-consuming re-machining of the entire rotor. The detachable attachment mechanism enables rapid installation of new friction surface parts.
Solution Approach 2:
The friction surface parts are designed as consumable components that are discarded after wear and recovered/recycled rather than requiring re-machining. This approach eliminates the time-consuming re-machining process while maintaining braking performance through periodic replacement of friction surfaces.
3Power
If abrasive friction is used for braking, then braking force is generated, but wear debris is produced causing environmental concerns
Solution Approach 1:
The friction surface parts are made from composite materials that provide high braking force while generating less harmful wear debris. The specific material composition is selected to reduce environmental impact of wear particles while maintaining effective adhesive and abrasive friction for power generation.
Solution Approach 2:
The wear of friction surface parts is designed to produce controlled debris that can be managed environmentally, and the wear process itself is beneficial as it maintains friction characteristics. The modular design allows worn parts to be replaced before excessive debris generation occurs, converting the harmful wear process into a manageable maintenance cycle.
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 modular design with surface topography and coatings extends the brake rotor's lifespan, reduces wear debris, enhances braking power, and provides a progressive braking feel, aligning with environmental regulations.
Implementation Method 1
The contact surface of the friction surface part can alternatively or additionally include one or more levels of surface topography. The contact surface of the friction surface part can include a wear and corrosion resistant coating.
Implementation Method 2
The one or more levels of surface topography can include a first level that includes island formations separated by channels. The second level of surface topography can assist in retaining the transferred film or layer of brake pad material on the contact surface. The transferred film or layer of brake pad material can enhance braking by participating in adhesive friction with a brake pad.
Data Source
AI summary
A brake rotor assembly can include a structural part having a receiving surface and at least one friction surface parts having a contact surface. The friction surface part can be fixably attached to the receiving surface of the structural part such that the contact surface faces away from the receiving surface of the structural surface to form at least part of an annular braking surface arranged concentrically around an axis of rotation of the structural part.