Railway Brake Disk-Hub Assembly With Elastic Stress Buffering
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Solution Overview
Problem
Conventional railway vehicle braking modules face issues with the direct transfer of force to combining units, leading to damage or release, and lack of circumferential combining force due to limited degrees of freedom, resulting in inadequate durability and reliability.
Innovation Solution
A braking module design incorporating a disk, hub, and integrated elastic unit with alternating fixing units and combining blocks, featuring U-shaped grooves and elastic units to distribute stress and enhance combining forces along both vertical and circumferential directions, allowing for increased durability and reduced thermal strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the spring is added to the combining between the bolt and the nut, then the vertical combining force may be increased, but the combining unit is easily damaged or released due to direct force transfer
Solution Approach 1:
The gap maintaining spring is positioned beforehand between the bolt head/nut and the disk surface to provide cushioning protection. The spring absorbs and distributes applied forces before they reach the combining unit, preventing direct force transfer that would otherwise damage or release the combining unit. This prior cushioning mechanism protects the combining unit while maintaining effective combining force.
Solution Approach 2:
The spring acts as an intermediary element between the external force and the combining unit. Instead of force being directly transferred to the bolt and nut, the spring mediates this interaction by deforming elastically, thereby protecting the combining unit from damage while still maintaining the necessary combining force between the disk and hub.
2Adaptability or versatility
If fixing units and combining blocks are arranged with constant distance to allow circumferential movement, then the disk can be freely contracted or expanded, but the structural integrity may be compromised
Solution Approach 1:
The patent merges the functions of fixing units and combining blocks into an integrated combining structure where multiple combining units work together as a unified system. This merged structure provides both the necessary circumferential freedom for thermal expansion and contraction while maintaining overall structural integrity through the cooperative action of distributed combining elements rather than isolated fixed points.
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 integrated elastic module effectively distributes stress, increases combining strength, and reduces thermal strain, enhancing the durability and reliability of the braking module while allowing for greater freedom of movement and heat dissipation.
Implementation Method 1
the elastic unit may include a contact portion, an elastic portion and an extending portion... The elastic portion may extend from both sides of the contact portion, and be spaced apart from both of the fixing unit and the combining block
Data Source
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AI summary
A braking module for a railway vehicle includes a disk, a hub, an elastic unit and a combining unit. The disk includes a disk body and a plurality of fixing units. The disk body has an opening portion formed at a center of the disk. The fixing units protrudes from an inner surface of the disk body toward the opening. The hub includes a central frame, an upper surface portion and a plurality of combining blocks. The central frame has a central hole. The upper surface portion is formed at an end of the central frame. The combining blocks are formed on the upper surface portion and are inserted between the fixing units. The elastic unit is integrally formed, and disposed on the fixing units or beneath the upper surface portion. The combining unit fixes the fixing units, the upper surface portion and the elastic unit with each other.