Interconnected Segment Retaining Clamp for Uniform Axial Loading
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Solution Overview
Problem
Existing retaining clamps, such as V-band clamps, face challenges in providing consistent and uniform axial loading to mating flanges due to variations in segment geometry and material properties, which can affect their ability to securely connect ducting, tubing, and other components across different applications.
Innovation Solution
A retaining clamp design featuring a chain of interconnected segments with a specific V-shaped groove geometry and a locking mechanism that allows contraction, formed from a metallic strip, ensuring uniform axial loading and secure joint connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional V-band clamp segments are used with varying geometries and materials, then manufacturing flexibility is improved, but loading uniformity deteriorates
Solution Approach 1:
The patent applies local quality by specifying a particular groove geometry (angle alpha between 30-60 degrees) at the contact region of each segment. This localized geometric feature ensures uniform load distribution across all segments while allowing the rest of the clamp structure to maintain manufacturing flexibility through standard fabrication processes
Solution Approach 2:
The patent changes the geometric parameter of the groove angle (alpha) to a specific range (30-60 degrees) to optimize load distribution. By controlling this critical parameter, the clamp achieves uniform axial loading on flanges while maintaining the ability to manufacture segments using conventional processes
2Reliability
If segment geometry and material properties are standardized, then loading uniformity is improved, but manufacturing flexibility deteriorates
Solution Approach 1:
The invention applies local quality by standardizing only the critical groove geometry (angle alpha between 30-60 degrees) at the load-bearing surface, while allowing other segment dimensions and material properties to vary according to manufacturing capabilities and application requirements. This selective standardization achieves uniform loading without completely sacrificing manufacturing flexibility
3Reliability
If the groove angle is increased, then contact uniformity is improved, but segment strength deteriorates
Solution Approach 1:
The patent identifies an optimal parameter range for the groove angle (alpha between 30-60 degrees) that balances two competing requirements: sufficient contact uniformity for reliable flange loading and adequate segment strength for mechanical durability. This parameter optimization resolves the contradiction between contact uniformity and segment strength
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 described retaining clamp ensures consistent and uniform axial loading on flanges, enhancing the secure connection of components by maintaining a uniform depth of contact and promoting efficient transmission of radial loads as axial forces, thus improving the reliability of joint connections across various applications.
Implementation Method 1
A locking mechanism is used to couple the ends of the outer band together and apply tension to the clamp. A radial load may be created by the tension and may be transmitted to the mating flanges of the joint as an axial load.
Implementation Method 2
The groove is defined by a base wall that faces the central axis and a pair of side walls extending obliquely relative to the base wall. An angle is defined between the pair of side walls. The angle has a magnitude of approximately 40 degrees.
Data Source
AI summary
A retaining clamp for securing the joints that connect ducting, tubing, filters, or other components is disclosed. The retaining clamp includes a chain of segments that defines a central axis, and a locking mechanism coupled to a first end of the chain and a second end of the chain. A groove is defined in each segment, and the groove is sized to receive a joint connecting ducting, tubing, filters, or other components.