Segmented C-Ring Holder for High-Pressure Pump Thrust
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Solution Overview
Problem
Conventional C-ring holder devices face challenges in enduring large thrust forces without compromising elasticity, often resulting in damage or deformation, as they struggle to balance rigidity and elasticity, leading to issues with strength and durability.
Innovation Solution
A holder device featuring an elastic member with a curved major arc shape and circularly arranged contact members with shorter radii of curvature, allowing for greater deformation and increased strength, where the contact members have high rigidity and are hardened to withstand large thrust forces while maintaining elasticity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the thickness or cross-sectional area of the C-ring is increased to raise rigidity and strength, then the C-ring can withstand larger thrust forces, but elasticity of the C-ring decreases making it difficult to deform radially for installation
Solution Approach 1:
The C-ring is divided into multiple arc-shaped segments (first arc member, second arc member, etc.) that are arranged circumferentially. Each segment has its own contact members, allowing independent deformation and assembly. This segmentation enables the structure to achieve both strength through multiple components and elasticity through individual segment flexibility.
Solution Approach 2:
Contact members are provided at specific locations on the inner circumferential surface of each arc segment, concentrating the elastic deformation capability at these local contact points rather than requiring the entire ring to deform uniformly. This allows the bulk structure to maintain high rigidity while specific regions provide the necessary elasticity for installation.
2Strength
If heat treatment is applied to raise surface hardness and strength of the C-ring, then the C-ring can endure large thrust forces, but overall rigidity increases making elastic deformation difficult and causing breakage at notches
Solution Approach 1:
By segmenting the C-ring into multiple arc members with separate contact members, the patent avoids the need for heat treatment of the entire ring. Each segment can be manufactured with appropriate hardness without requiring post-heat treatment, maintaining both strength and deformability.
Solution Approach 2:
Contact members are designed with specific material properties and geometric features (such as curved contact surfaces with specific radii) that provide localized elasticity and hardness where needed, eliminating the need for global heat treatment that would compromise overall deformability.
3Strength
If the C-ring is split into several split keys fixed on a ring-like elastic member, then rigidity and surface hardness can be raised, but the intimate fixation of split keys on the elastic member inhibits deformation and limits compression capability
Solution Approach 1:
The patent divides the structure into separate arc-shaped segments rather than fixing keys onto a continuous ring. Each arc member is an independent component that can deform radially without being constrained by a fixed key structure, maintaining compression capability while achieving the needed strength through the segmented design.
Solution Approach 2:
Contact members are positioned at specific locations on each arc segment rather than being continuously fixed around the entire circumference. This localized arrangement allows the arc segments to deform radially where needed while providing strength and hardness at the contact points.
4Ease of operation
If the C-ring has a relatively small contact area with the target member to maintain elasticity, then the C-ring can deform easily, but the concentrated force may cause groove collapse or C-ring damage under large thrust forces
Solution Approach 1:
Multiple arc segments with contact members distribute the contact area across several discrete locations around the circumference. This segmentation allows the force to be distributed across multiple contact points rather than concentrated at a single location, increasing overall load-bearing capacity while maintaining the elasticity of individual contact members.
Solution Approach 2:
Contact members are designed with optimized contact surface geometry (such as curved surfaces with specific radii) that concentrate the elastic deformation capability at precise contact locations while distributing the load across multiple such locations, achieving both local deformability and overall force distribution.
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 device effectively prevents members from coming off and endures significant thrust forces by allowing greater radial deformation and distributing force more evenly, enhancing both installation ease and durability.
Implementation Method 1
an elastic member 31 which is curved to extend approximately along a major arc of curvature and can be elastically deformed with respect to a radius of curvature
Data Source
AI summary
A holder device has an elastic member and contact members. The elastic member is curved to extend approximately along a major arc of curvature and is elastically deformable to change a radius of curvature thereof. The contact members are circularly arranged along an inner circumferential side or an outer circumferential side of the elastic member so that each of the contact members is opposed to the elastic member in a radial direction of the elastic member. Each of the contact members has a sidewall that is opposed to the elastic member in the radial direction and is curved along an arc of curvature. A radius of curvature of the sidewall is shorter than the radius of curvature of the elastic member in its natural state.