Radial Screw Coupling Ring Assembly Design

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Solution Overview

Problem

Existing coupling technologies face difficulties in assembly and disassembly due to the requirement of specialized mounting devices and complex screw connections, particularly in forming a consistent, unsplitted shaft with integrated coupling rings.

Innovation Solution

A coupling design featuring star units with radially aligned screw joints and elastic spring elements, allowing for a single-parted shaft assembly and vulcanization process that enables screwing onto detached end ranges, forming a consistent, tangentially pre-tensioned coupling ring without the need for separate segments or assembly devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If axial screw connections are used to fasten the coupling ring to coupling parts, then reliable mechanical connection is achieved, but assembly and disassembly require specialized mounting devices and assembly stands, increasing device complexity and difficulty of operation

Engineering Contradiction:

Improvemechanical connection reliabilityVSAvoidassembly and disassembly ease

Core Design Contradiction:

StrengthVSEase of operation

Solution Approach 1:

The patent inverts the traditional axial screw connection approach by using radially directed screw connections. Instead of fastening from the axial direction (requiring assembly stands), the coupling ring is fastened from the radial direction, allowing assembly and disassembly from the end of the coupling part without specialized mounting devices.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent introduces an intermediate fastening structure where the coupling ring has radially directed screw connections that interface with the coupling part's axial bore holes through a radial-axial conversion mechanism. This intermediary structure enables simple end-access assembly while maintaining strong mechanical connection.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the coupling ring is designed as separate segments with vulcanized rubber-wedge metal parts, then flexible mounting is achieved, but the fastening process involves additional efforts and requires appropriate mounting devices

Engineering Contradiction:

Improvemounting flexibilityVSAvoidmounting device requirement

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the coupling ring segments into a consistent, unsplitted shaft structure. The radially directed screw connections allow the coupling ring to be fastened as an integrated unit to the coupling part, eliminating the need for separate segment assembly and reducing mounting device requirements.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The coupling part is designed with universal features: axial bore holes that can accommodate both the radially directed screws from the coupling ring and the drive element. This multi-functional design allows a single structure to serve multiple fastening purposes without requiring specialized mounting devices.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Ease of operation

If radially directed screw connections are used on the coupling ring, then assembly can be performed from the end without specialized mounting devices, but the screw connections must be radially aligned which requires specific structural design

Engineering Contradiction:

Improveassembly simplicityVSAvoidstructural design complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent changes the directional dimension of screw connections from axial to radial. The coupling ring has screw connections directed radially outward, while the coupling part has axial bore holes. This dimensional transformation allows simple end-access assembly while the internal radial-axial geometry handles the structural alignment requirements.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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 design simplifies the assembly process, eliminates the need for specialized mounting devices, and achieves a consistently pre-tensioned, unsplitted coupling ring that can handle angular misalignments effectively, enhancing operational stability and ease of maintenance.

Implementation Method 1

several radially directed, ring-revolving fastening elements, each provided with an elastic spring part, which is fixed to it in the course of a vulcanization process

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

each provided with an elastic spring part, which is fixed to it in the course of a vulcanization process

Methodology Applied

Scientific EffectVulcanization:

Data Source

PatentUS9347497B2Coupling with coupling ring on two coupling parts, and associated coupling ring

Publication Date: 2016.05.24 KWD KUPPLUNGSWERK DRESDEN GMBH

AI summary

A coupling (30, 49, 61; 40, 60) with a coupling ring (1) on two coupling parts (8, 9), wherein the coupling parts (8, 9) each constitutes a star (2, 3) with star arms (26, 27) and star arm end regions (4, 5) situated thereon, wherein the two stars (2, 3) are arranged opposite and axialy relative to one another with an angular offset, and the star arm end regions (4, 5) are provided with in each case at least one threaded bore (14) for screw connections (20), wherein the coupling ring (1) includes plurality of fastening elements (10, 11).