Radially Movable Transmission Outer Ring for Self-Centering Alignment

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Solution Overview

Problem

Conventional gearbox installations require strict alignment tolerances to ensure a long service life, which is complex and often not feasible, leading to reduced service life due to positional and angular deviations within permissible tolerance ranges.

Innovation Solution

The toothed section of the gearbox outer ring is connected to the fastening section in a radially movable manner, allowing self-centering during operation, reducing wear on components and extending service life, even with less stringent installation tolerances.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the transmission outer ring is rigidly fastened to the structure, then the alignment precision is improved, but the installation complexity and tolerance requirements increase significantly

Engineering Contradiction:
Improvealignment precisionVSAvoidinstallation complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by making the connection between the transmission outer ring and the structure movable rather than rigid. The fastening section is designed with degrees of freedom that allow automatic adjustment and self-centering during operation, eliminating the need for precise pre-alignment while maintaining operational precision.

Inventive Principle:
Principle #15Dynamics

2Duration of action of stationary object

If strict alignment tolerances are enforced during installation, then the service life is extended, but the installation time and complexity increase

Engineering Contradiction:
Improveservice lifeVSAvoidinstallation time
Core Design Contradiction:
Duration of action of stationary objectVSLoss of time

Solution Approach 1:

The patent implements self-service through the self-centering mechanism of the fastening section. The transmission outer ring automatically adjusts its own position relative to the structure during operation, eliminating the need for external alignment procedures and precision installation tools, thereby reducing installation time while ensuring long service life.

Inventive Principle:
Principle #25Self-service

3Stability of the object's composition

If the toothed section is rigidly connected to the fastening section, then the structural stability is improved, but the load on transmission components increases due to misalignment

Engineering Contradiction:
Improvestructural stabilityVSAvoidload on transmission components
Core Design Contradiction:
Stability of the object's compositionVSForce

Solution Approach 1:

The patent resolves this contradiction by introducing controlled mobility to the connection between the toothed section and fastening section. The fastening section allows radial movement while maintaining rotational stability, enabling the transmission outer ring to self-center and reduce misalignment loads while preserving structural stability during operation.

Inventive Principle:
Principle #15Dynamics

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 reduces loads on transmission components, minimizes wear, and increases service life by enabling self-centering of the toothed section relative to the fastening section, while allowing for simpler and less complex installation processes.

Implementation Method 1

the toothed section is connected to the fastening section in a radially movable manner

Methodology Applied
Scientific EffectRadial movement:

Data Source

PatentEP4365466A1Transmission with a transmission outer ring
Publication Date: 2024.05.08 OVALO
  • EP4365466A1 patent drawingFigure 1
  • EP4365466A1 patent drawingFigure 2
  • EP4365466A1 patent drawingFigure 3

AI summary

The invention relates to a transmission with an outer transmission ring comprising a mounting section for attaching the outer transmission ring to a structure, in particular to a transmission housing, and a toothed section. The transmission is characterized in that the toothed section is radially movably connected to the mounting section.