Fiber-Reinforced Radial Press Structure for Stress Absorption
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Solution Overview
Problem
Radial presses face limitations in their range of applications due to inefficiencies in force distribution and stress management, particularly in compact designs, which hinder their use in various workpiece geometries and large-caliber pipeline construction.
Innovation Solution
Incorporating a ring-shaped fiber structure around the press axis, utilizing long fibers oriented in a winding technique to create a robust and compact drive unit that efficiently absorbs and compensates for tensile stresses, ensuring the fiber structure's outer radius is at least 1.5 times the press tool's radius to prevent cracking and deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a radial press is designed with a compact structure to handle diverse workpiece geometries, then the press can be more versatile and space-efficient, but tensile stresses released outside the press baking become problematic and may cause structural failure or deformation
Solution Approach 1:
The patent applies composite materials by combining metal components with a fiber structure (particularly carbon fiber) to create a hybrid construction. The fiber structure is integrated into the basic structure radially outside the press baking to specifically counteract tensile stresses, while the metal parts provide mechanical strength and precision. This composite approach allows the press to maintain compact dimensions while achieving the structural integrity needed to handle diverse workpiece geometries reliably.
2Manufacturing precision
If the fiber structure outer radius is increased to at least 1.5 times the press tool radius to prevent cracking and deformation, then dimensional accuracy is improved, but the overall press size and complexity increase
Solution Approach 1:
The patent applies parameter changes by establishing a specific geometric relationship between the fiber structure outer radius and the press tool radius (at least 1.5 times). This parameter optimization ensures that the fiber structure provides sufficient leverage and stress distribution to prevent cracking and deformation of the workpiece, thereby achieving high dimensional accuracy. The defined radius ratio balances the need for precision with manageable structural complexity.
3Strength
If long fibers are used in winding technique to create the fiber structure, then the strength and stress absorption capability are enhanced, but the manufacturing process becomes more complex and time-consuming
Solution Approach 1:
The patent applies segmentation by dividing the fiber structure into multiple separate components that can be manufactured independently and then assembled into the complete ring-shaped structure. This segmentation allows each fiber component to be produced using winding technique with long fibers for optimal strength, while the overall assembly process becomes more manageable. The segmented approach maintains high strength characteristics while improving manufacturing ease and reducing production time.
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
This solution enables the creation of powerful, compact radial presses that can handle diverse workpiece geometries and reduce the risk of conical deformation, enhancing dimensional accuracy and manufacturing quality while allowing for flexible movement profiles during production.
Implementation Method 1
the fiber structure, which is intended according to the invention, around the press axis or master... Such tensile stresses can in turn can be removed in a - with regard to the weight, the volume, the strength, the stretching behavior... of the load-bearing structure - particularly efficiently by the ring-shaped fiber structure
Data Source
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AI summary
In a radial press having a main structure (1), having a plurality of pressing jaws (24) arranged around a pressing axis (X), and having a drive unit which acts on said pressing jaws, is supported on the main structure (1) and can move the pressing jaws (24) radially in the direction of the pressing axis (X) and away from the same, at least one fibrous structure (20) is provided radially outside the pressing jaws (24), the fibrous structure enclosing said pressing jaws and extending in annularly closed closed form around the pressing axis (X) in a plane which is substantially perpendicular to the pressing axis.