Brake Force Amplifier Spring Washer Design
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Solution Overview
Problem
Current braking devices for motors, particularly radial piston hydraulic motors, face challenges in achieving higher braking torque without increasing brake release pressure, which often requires oversized components and larger dimensions.
Innovation Solution
The braking device incorporates a spring washer with three support zones, allowing for a more efficient distribution of forces between the braking and brake release mechanisms, enabling increased braking torque while maintaining unchanged brake release pressure and reducing the number of slats required, thus minimizing size and pressure requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the braking force is increased by increasing brake release pressure, then the braking torque is improved, but the pressure requirements and component dimensions increase
Solution Approach 1:
The invention transitions from a single-point force application to a distributed force application across the spring washer's surface. By defining multiple support zones (casing support zone, brake release support zone, braking support zone) at different locations, the force is distributed across multiple dimensions of the spring washer structure, enabling increased braking torque without proportional pressure increase
Solution Approach 2:
The spring washer is segmented into distinct functional zones: a casing support zone for mounting, a brake release support zone for receiving the brake release piston force, and a braking support zone for applying braking force to the slats. This segmentation allows independent optimization of each zone's function, enabling force multiplication while maintaining manageable pressure levels
2Force
If the braking force is increased by increasing brake release pressure, then the braking torque is improved, but the component dimensions increase
Solution Approach 1:
The invention utilizes the two-dimensional surface area of the spring washer by creating multiple support zones at different radial and axial positions. This dimensional utilization allows the same component to handle higher forces without increasing its overall volume, as the force distribution occurs across the existing surface rather than requiring larger dimensions
Solution Approach 2:
The spring washer functions as a composite elastic structure that combines multiple support zones into a single integrated component. This composite approach allows the washer to simultaneously provide structural support, force transmission, and force multiplication functions without requiring multiple separate components, thereby maintaining compact dimensions
3Device complexity
If the number of slats is reduced, then the device complexity is improved, but the braking torque decreases
Solution Approach 1:
The invention changes the force application parameter from direct piston-to-slat contact to spring washer-mediated contact. By modifying how force is transmitted (through the elastic deformation and force distribution of the spring washer), the system achieves higher braking torque with fewer slats, as each slat receives optimized force distribution from the multiple support zones
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 configuration enhances braking torque by multiplying the force delivered by the spring washer, allowing for a reduced number of slats and lower pressure requirements, achieving higher braking force with compactness and efficient brake release.
Implementation Method 1
at least one spring washer comprising a first face, a second face, an inner periphery and an outer periphery, said spring washer being mounted in abutment on the brake casing according to a crankcase bearing zone located on one of the inner or outer peripheries of the first face of said spring washer
Data Source
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AI summary
The present invention relates to a braking device comprising - a casing mounted in relative rotation with respect to a shaft, - first braking means secured to the brake casing, - second braking means secured to the shaft and designed to collaborate with said first braking means, - a brake piston designed to act on said first braking means, - at least one spring washer comprising two faces, an internal periphery and an external periphery, said device being characterized in that: - it comprises a brake release piston, - the at least one spring washer has a region for bearing in a brake-release manner with the brake-release piston on the other of the peripheries of the second face of the spring washer, said braking bearing region being situated at an intermediate position on the at least one spring washer, between the casing bearing zone and the brake release bearing region.