Electric Brake Actuation Linkage for Piston Axis Misalignment
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Solution Overview
Problem
Existing electric braking devices suffer from insufficient suppression of bending deformation and increased sliding resistance due to distortion, unbalanced loads, and machining or assembly errors, leading to uneven wear and component misalignment.
Innovation Solution
The electric braking device incorporates a linear-motion converting mechanism with a pivotable linear motion member and a movable connecting member, allowing for axial and radial adjustments to maintain coaxial alignment of the cylinder and piston axes, thereby suppressing unbalanced loads and bending deformations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the center axis of the piston is inclined with respect to the cylinder axis due to deflection or manufacturing errors, then assembly is simplified, but unbalanced loads cause uneven wear and bending deformation
Solution Approach 1:
The connecting member is designed with movement capability in the radial direction relative to the piston, allowing it to dynamically adjust its position to compensate for axis inclination. This dynamic adjustment maintains proper alignment between the cylinder axis and piston axis even when manufacturing errors or deflections occur, preventing unbalanced loads and ensuring uniform wear distribution.
Solution Approach 2:
The connecting member acts as an intermediary element between the linear motion member and the piston. It mediates the transmission of pressing force while accommodating axis inclination through its ability to move radially, thereby isolating the piston from the harmful effects of misalignment and preventing uneven wear and bending deformation.
Data Source
AI summary
Between a nut of a linear-motion converting mechanism that converts rotation of an electric motor into linear motion and a piston is interposed a connecting member that mediates transmission of pressing force between the nut and the piston. The nut is installed to be pivotable with respect to the connecting member, and the connecting member is installed to be radially movable with respect to the piston.