Brake Caliper Pull Rod Assembly for Compact Rail Disc Brakes
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Solution Overview
Problem
There is a need to reduce costs, weight, and installation space while maintaining or increasing the quality of pull rod devices and brake calipers in disc brakes for rail vehicles.
Innovation Solution
The pull rod device is redesigned as separate parts, eliminating the vertical pull rod rib and using two vertical rods to connect the pull rod top and bottom, allowing for a more compact and lightweight design that transfers forces and bending moments effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a vertical pull rod rib is used to connect pull rod top and bottom, then structural strength and stability are maintained, but weight and installation space increase
Solution Approach 1:
The pull rod device is divided into separate components: pull rod top, pull rod bottom, and individual vertical rods. This segmentation eliminates the need for a large integrated pull rod rib while maintaining structural strength through properly designed connection points and individual rod support.
Solution Approach 2:
The vertical pull rod rib is extracted and replaced with smaller vertical rods positioned at specific locations. This extraction removes unnecessary material while preserving the essential function of connecting and supporting the pull rod top and bottom.
2Stability of the object's composition
If a vertical pull rod rib is used to connect pull rod top and bottom, then structural stability is maintained, but installation space increases
Solution Approach 1:
The pull rod device is segmented into separate components that can be positioned independently, allowing for more compact arrangement and reduced installation space while maintaining structural stability through strategic placement of connection points.
Solution Approach 2:
The design transitions from a rib structure extending in one dimension to multiple smaller rods positioned in different spatial locations, optimizing the use of available space while maintaining structural integrity.
3Weight of moving object
If separate parts are used instead of integrated pull rod rib, then weight and installation space are reduced, but manufacturing complexity increases
Solution Approach 1:
The pull rod device is segmented into separate components (pull rod top, pull rod bottom, vertical rods) that can be manufactured independently using standard processes, then assembled together. This segmentation reduces weight while managing manufacturing complexity through modular design.
Solution Approach 2:
Multiple separate components are merged into a functional assembly that achieves the same structural purposes as an integrated rib while allowing for optimized manufacturing of individual parts and simplified maintenance or replacement.
Data Source
AI summary
A pull rod device arrangement of a brake caliper includes a pull rod top, a pull rod bottom, and two vertical rods, wherein the pull rod top and the pull rod bottom of the pull rod device are connected to each other. The pull rod top and the pull rod bottom of the pull rod device are designed as separate parts. A brake caliper includes the pull rod device.