Chevron Groove Processing Device for Cylinder Sealing Integrity
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Solution Overview
Problem
Existing groove processing devices for gas cylinder apparatuses risk damaging sealing members by forming inward protrusions on the cylinder's inner surface, which can cause damage when the piston slides.
Innovation Solution
A groove processing device and method utilizing two chevron-shaped processing units that move along the cylinder's centerline, with one unit forming both end portions and the other forming the center portion of the cylinder groove, ensuring that no inward protrusions are created from the inner surface, thus preventing damage to sealing members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional groove processing device is used to form a cylinder groove, then the groove can be formed efficiently, but inward protrusions are created on the inner surface that may damage sealing members
Solution Approach 1:
The groove processing unit is divided into multiple processing elements (first groove processing unit and second groove processing unit) with different chevron shapes and inclination angles. Each unit processes a specific portion of the groove, allowing the outermost circumferential portions to be formed with controlled geometry that prevents inward protrusions while maintaining efficient groove formation
Solution Approach 2:
Different portions of the groove processing units have different geometric properties. The first and second groove processing units have different inclination angles at their outermost circumferential portions, allowing localized control of the groove shape to prevent harmful inward protrusions at critical areas while maintaining overall groove functionality
2Device complexity
If the groove processing unit has a uniform shape, then the device structure is simple, but inward protrusions are formed that compromise sealing member safety
Solution Approach 1:
The groove processing units are designed with asymmetric chevron shapes where the outermost circumferential portions have different inclination angles. This asymmetric geometry ensures that the groove is formed without creating symmetric inward protrusions that would contact and damage the sealing member, while avoiding excessive complexity through systematic design
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 effectively forms a cylinder groove without inward protrusions, reducing the risk of damaging the sealing member and ensuring smooth operation of the gas cylinder apparatus by maintaining the integrity of the inner surface.
Implementation Method 1
a first groove processing unit that moves in the direction of the center line while contacting the inner circumference of the cylinder to process both end portions of the cylinder groove... and a second groove processing unit that processes a center portion of the cylinder groove
Data Source
AI summary
A groove processing device, which processes a cylinder groove to an inner circumference of a cylinder to protrude from an inner circumferential surface toward an outer circumferential surface side and extend in a center line direction of the cylinder, includes: a first groove processing unit that process both end portions of the cylinder groove in a circumferential direction thereof, and a second groove processing unit that processes a center portion of the cylinder groove in the circumferential direction thereof, wherein an outermost circumferential portion of each of the first groove processing unit and the second groove processing unit being formed to be a chevron shape so that a center portion thereof in the circumferential direction of the cylinder protrudes, and an inclination angle from a vertex portion in the outermost circumferential portion of the first groove processing unit is larger than that of the second groove processing unit.