Disc Brake Lining Restoring Element for Wear-Compensated Separation
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Solution Overview
Problem
Existing brake lining arrangements for vehicle disc brakes do not reliably return to their initial position after a braking process, leading to potential abrasion and wear issues, as they fail to maintain a consistent spacing from the brake disc due to wear on the friction linings.
Innovation Solution
A brake lining arrangement featuring a restoring element with spring portions attached to the brake caliper, which provides pretensioning to ensure the brake lining returns to its initial position, compensates for wear, and maintains a consistent spacing by adjusting its position based on friction lining wear, thereby preventing abrasion and reducing noise through a plate-shaped element that dampens vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the brake lining arrangement uses a simple connection without restoring element, then the device complexity is reduced, but the brake lining cannot reliably return to initial position after braking, causing abrasion and wear
Solution Approach 1:
The restoring element is divided into multiple spring portions (first spring portion and second spring portion) connected in series, allowing each segment to independently contribute to the restoring force while maintaining overall reliability even if one segment degrades
Solution Approach 2:
The restoring element uses elastic spring portions that dynamically adjust their stiffness and force output based on the wear state of the friction lining, providing adaptive restoring force rather than a fixed mechanical connection
2Manufacturing precision
If the brake lining arrangement includes wear compensation mechanism, then the spacing consistency is improved, but the device complexity increases
Solution Approach 1:
The restoring element automatically compensates for friction lining wear through its elastic deformation, maintaining consistent spacing without requiring external adjustment mechanisms or complex control systems
Solution Approach 2:
The elastic properties of the spring portions change in response to wear, allowing the restoring element to adapt its mechanical parameters (stiffness, preload) to maintain optimal spacing as the friction lining thickness decreases
3Reliability
If the restoring element applies high pretensioning force, then the separation reliability is improved, but the stress on the brake caliper and mounting structure increases
Solution Approach 1:
The restoring element provides dynamic pretensioning force that adapts to the operational state, applying higher force when separation is needed and reducing force during braking to minimize stress on the brake caliper and mounting structure
Solution Approach 2:
The restoring element pre-loads the brake lining arrangement in a controlled manner before braking occurs, ensuring reliable separation readiness without subjecting the brake caliper to excessive continuous stress
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 effectively ensures reliable separation of the friction linings from the brake disc, compensates for wear, and maintains consistent spacing, reducing noise and extending the lifespan of the brake lining arrangement by resetting its initial position after each braking process.
Implementation Method 1
The at least one restoring element has at least two spring portions. The at least one restoring element is configured such that the at least two spring portions of the at least one restoring element act on the brake caliper under pretensioning.
Implementation Method 2
reducing noise through a plate-shaped element that dampens vibrations
Data Source
AI summary
The present disclosure relates to a brake lining arrangement for a vehicle disc brake, comprising at least one brake lining carrier plate, at least one friction lining, and at least one restoring element. The friction lining is attached to the front surface of the at least one brake lining carrier plate. The at least one restoring element is fastened to the rear surface of the at least one brake lining carrier plate and may be coupled to a brake caliper of the vehicle disc brake. At least one restoring element has at least two spring portions. The at least one restoring element is configured such that the at least two spring portions of the at least one restoring element act on the brake caliper under pretensioning.