Brake Cylinder Force Amplification via Swinging Mechanism
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Solution Overview
Problem
Conventional disk brake devices and brake cylinder devices face challenges in increasing braking force without proportionally increasing device size, particularly in railroad applications, where larger braking forces require larger components, leading to increased overall size and complexity.
Innovation Solution
A brake cylinder device with a force amplifying mechanism that includes a swinging member biased by a piston, amplifying the drive force to move a rod forward, allowing for efficient use of space and compact design while maintaining or increasing braking force output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the length of brake levers is increased to generate necessary braking force, then braking force is improved, but the size of caliper body and overall disk brake device increases
Solution Approach 1:
The brake system is divided into two independent brake cylinders: a first brake cylinder for normal braking operations and a second brake cylinder for emergency or enhanced braking. This segmentation allows each cylinder to be optimized for its specific function without requiring oversized components, thus maintaining compact size while achieving high braking force when needed.
Solution Approach 2:
The patent combines two brake cylinders with different functions into a single integrated system. The first brake cylinder handles routine braking while the second brake cylinder provides additional braking force when activated. This merging allows the system to achieve high braking force through coordination of both cylinders rather than relying on a single oversized cylinder or lever system.
2Force
If the diameter of cylinder body is increased to obtain desired braking force output, then braking force is improved, but the overall size of brake cylinder device increases
Solution Approach 1:
The braking function is segmented between two brake cylinders with different piston diameters. The first brake cylinder has a smaller diameter suitable for normal operations, while the second brake cylinder has a larger diameter for enhanced braking. This segmentation allows the system to achieve high braking force output without requiring a single oversized cylinder, thus maintaining a more compact overall device size.
Solution Approach 2:
The system changes the parameter of piston diameter by providing two different brake cylinders with different piston sizes. This allows the braking force output to be adjusted by activating one or both cylinders depending on the braking requirement, achieving desired high braking force without permanently increasing the device size with a single large-diameter cylinder.
3Force
If multiple accumulated force springs and multiple transmission devices are disposed in a line along the circumferential direction of the cylinder, then braking force is amplified, but the diameter of cylinder body increases
Solution Approach 1:
The force amplification function is segmented between two separate brake cylinders rather than using multiple transmission devices within a single cylinder. Each brake cylinder independently provides braking force through its own piston and spring mechanism, eliminating the need for circumferential arrangement of multiple transmission devices that would increase cylinder diameter.
Solution Approach 2:
The complex transmission device mechanism with multiple accumulated force springs arranged circumferentially is extracted and replaced by a simpler dual-brake-cylinder approach. Each brake cylinder uses a single piston and spring arrangement, removing the need for complex multi-device transmission systems that would increase cylinder diameter while still achieving force amplification through the combination of two cylinders.
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 enables a compact brake cylinder device that can enhance braking force output without increasing device size, improving drive efficiency and reducing friction resistance through the use of bearings and symmetrical load distribution, thus addressing the challenge of scaling braking force without scaling device size.
Implementation Method 1
a rod biasing spring capable of biasing the rod in the backward movement direction
Implementation Method 2
moves in the backward movement direction relative to the cylinder body in resistance to biasing force from the rod biasing spring due to pressure fluid being supplied to the pressure chamber
Implementation Method 3
the force amplifying mechanism includes a swinging member that swings due to being biased by the piston moving in the backward movement direction, so as to bias and move the rod in the forward movement direction
Implementation Method 4
reducing friction resistance through the use of bearings
Data Source
AI summary
The present invention provides a small brake cylinder device that can increase braking force output from a brake output portion that moves along with a rod, while suppressing an increase in the device size. A piston defines a pressure chamber and surrounds the axis of the rod inside a cylinder body, and moves in a linear direction that is parallel to the movement direction of the rod. When pressure fluid is supplied to the pressure chamber, the piston moves in the backward movement direction relative to the cylinder body in resistance to biasing force from a rod biasing spring. Swinging members of a force amplifying mechanism swing due to being biased by the piston moving in the backward movement direction, and moves the rod by biasing it in the forward movement direction. The force amplifying mechanism amplifies the drive force generated by the piston and applies it to the rod.