Segmented Cam Ring Residual Pressure Release Valve Assembly
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Solution Overview
Problem
Existing residual pressure release valves face challenges in ease of assembly due to complex configurations and potential misalignment of components, which can lead to increased assembly time and potential leaks.
Innovation Solution
A residual pressure release valve design featuring a rotatable converting means, specifically a cam ring with inclined grooves and hooks, that converts rotational movement into linear movement to operate the valve plug, facilitating easier assembly and alignment of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional integrated cam ring design is used, then the valve mechanism can operate reliably, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The cam ring is divided into two separate half-cam rings that can be assembled independently and then joined together. This segmentation allows each half to be positioned and secured separately using retaining rings and retaining members, significantly simplifying the assembly process while maintaining the functional integrity and reliability of the valve mechanism.
2Reliability
If components are tightly integrated for reliability, then sealing is improved, but assembly alignment becomes difficult
Solution Approach 1:
The retaining rings are pre-installed into the retaining grooves of the valve body and operating unit before the half-cam rings are positioned. This preliminary action establishes precise alignment references that guide the placement of the half-cam rings, ensuring proper sealing surfaces are aligned correctly before final assembly, thus achieving both reliable sealing and ease of assembly.
3Strength
If the cam ring is made as a single piece, then structural strength is maintained, but assembly time increases
Solution Approach 1:
The cam ring is segmented into two half-cam rings that can be assembled separately and quickly positioned using retaining rings. This segmentation dramatically reduces assembly time compared to assembling a single integrated cam ring, while the retaining members and retaining grooves ensure that the segmented structure maintains sufficient structural strength for reliable operation.
4Manufacturing precision
If the valve mechanism uses a complex operating unit, then valve control precision is improved, but ease of assembly deteriorates
Solution Approach 1:
The operating unit is designed with segmented retaining rings that can be independently installed into retaining grooves. This segmentation allows the complex operating unit to be assembled in a modular fashion, where each component can be positioned and secured separately, maintaining precise control functionality while significantly improving ease of assembly compared to a fully integrated 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 design enhances the ease of assembly by allowing the cam ring to be assembled in close proximity, reducing assembly time and improving reliability, while also ensuring secure engagement with the operating unit, thus preventing leaks and improving the overall functionality.
Implementation Method 1
a cylindrical shaped cam ring having an inclined groove therein for guiding the pin, the cam ring being formed from two divided bodies which are separable from each other in a radial direction
Data Source
AI summary
A flow-through condition of a pressure fluid between first through third ports formed in a body of a residual pressure release valve is switched by a valve plug of a valve mechanism. Between an operating unit for driving the valve mechanism and the body, a converter is disposed for converting rotational movement of the operating unit into linear movement and transferring the linear movement to the valve plug. The converter includes a cylindrical shaped cam ring including a pin inserted through the valve plug, and inclined grooves for guiding the pin. The cam ring includes two divided bodies separable from each other in a radial direction.