Clamping Ring With Segmented Conical Transmission Areas
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Solution Overview
Problem
Existing non-detachable pipe connections require high axial pressing forces and result in increased friction and production costs, while also being difficult to produce and maintain a high level of tightness over time.
Innovation Solution
The arrangement features axially spaced transmission areas on the clamping ring and sliding sleeve with cone and cylindrical sections, allowing for efficient conversion of axial movement into radial pressure with reduced friction and the use of cost-effective materials like plastics, which can be reinforced with glass fibers or metals for added rigidity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sloping contact surfaces extend over the entire length of the support body to ensure even molding, then the connection tightness is improved, but the friction between sliding sleeve and clamping ring increases
Solution Approach 1:
The contact surfaces are divided into multiple axially spaced transmission areas with conical sections interspersed with cylindrical sections. This segmentation allows the pressing force to be applied in discrete zones rather than continuously, reducing overall friction while maintaining connection tightness through distributed pressure points.
Solution Approach 2:
Different sections of the contact surface have different geometries - conical sections for force transmission and cylindrical sections for reduced friction. This local differentiation optimizes each zone's function: conical areas provide the necessary radial pressing force while cylindrical areas minimize friction during the sliding operation.
2Strength
If high axial pressing forces are used to achieve non-detachable connection, then the connection strength is improved, but the production costs increase
Solution Approach 1:
The pressing force is distributed across multiple axially spaced transmission areas rather than applied as a single high-force operation. This segmentation allows the use of lower axial pressing forces at each location while achieving the same overall connection strength, reducing the requirements for expensive pressing equipment and tooling.
Solution Approach 2:
The conical sections convert axial movement into radial pressing force through geometric transformation. This dimensional conversion allows lower axial forces to generate the necessary radial clamping pressure, reducing the power requirements and cost of the pressing operation.
3Force
If conical sections with large axial length are used for force transmission, then the force distribution is improved, but the axial displacement required for pressing increases
Solution Approach 1:
The force transmission is divided into multiple discrete conical sections spaced axially rather than using a single long conical surface. This segmentation provides adequate force distribution across multiple contact points while keeping the axial length of each individual conical section short, thus minimizing the total axial displacement required.
Solution Approach 2:
The cone angle of the conical sections is optimized to provide effective force transmission with minimal axial displacement. By adjusting the geometric parameters of the conical sections, the system achieves good force distribution without requiring excessive axial movement of the sliding sleeve.
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 use of lower axial pressing forces to achieve high radial pressures, ensuring a long-lasting, cost-effective, and corrosion-resistant non-detachable connection with reduced production costs and no need for additional sealing means.
Implementation Method 1
the transmission areas of the clamping ring and the sliding sleeve have sections in the shape of segments of a cone... when the sliding sleeve is pushed axially onto the clamping ring, the contact surfaces of the sliding sleeve and the clamping ring are designed to be inclined relative to the axis in order to at least partially convert the axial movement of the sliding sleeve into a pressing force acting radially inward on the clamping ring
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The invention relates to a clamping ring (1) for a non-releasable workpiece connection, comprising an inner circumferential surface (2) and an outer circumferential surface (4) and comprising a proximal end (14) and a distal end (12), said inner circumferential surface having a cylindrical design in at least some sections. The invention further relates to a sliding sleeve (25) for a non-releasable workpiece connection, comprising an inner circumferential surface (26), an outer circumferential surface (42), a proximal end (36), and a distal end (34). The invention further relates to an arrangement for producing a non-releasable workpiece connection and to a method for producing a non-releasable workpiece connection. The technical aim of the invention is to provide a clamping ring (1), a sliding sleeve (25), an arrangement, and a method for a non-releasable workpiece connection, wherein low axial pressing forces are converted into high radial pressing forces, small axial movements are sufficient for compression purposes, and a long stability of the non-releasable connection is ensured. This is achieved in that at least two respective transmission regions (6a, 6b, 6c, 28a, 28b, 28c) which are mutually spaced in an axial manner are arranged on the outer circumferential surface of the clamping ring and on the inner circumferential surface of the sliding sleeve; each of the transmission regions of the clamping ring is paired with a transmission region of the sliding sleeve; the transmission regions of the clamping ring and the sliding sleeve have conical segment-shaped portions (8a, 8b, 8c, 30a, 30b, 30c); and the transmission regions of the clamping ring and the sliding sleeve have cylindrical portions (10a, 10b, 10c, 32a, 32b, 32c).