Linear Vibration Conveyor Rotatable Spring Articulation

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Solution Overview

Problem

Existing linear vibration conveyors experience adverse vibration transmission between the counterweight and foundation, leading to disruptions during operation and sorting of goods, and can also affect the environment with unwanted vibrations.

Innovation Solution

The use of rotatably articulated free spring sections at the ends of the second group of springs creates a pivot point, decoupling vibrations and allowing for flexible deformation, thereby reducing vibration transmission between the counterweight and foundation, and employing cylinder compression springs for enhanced vibration decoupling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the counterweight is rigidly clamped to the foundation using leaf springs, then the structural stability is improved, but vibration transmission between the counterweight and foundation increases causing disruptions and noise

Engineering Contradiction:
Improvestructural stabilityVSAvoidvibration transmission
Core Design Contradiction:
Stability of the object's compositionVSObject-generated harmful factors

Solution Approach 1:

The patent changes the connection parameter from rigid clamping to rotatable articulation. The spring ends are articulated rotatably instead of being rigidly clamped, allowing the connection to adapt to vibration movements while maintaining structural stability. This parameter change enables the system to filter vibrations through rotational degrees of freedom rather than transmitting them rigidly.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent introduces dynamic capability to the spring connection by allowing rotatable articulation at the spring ends. This dynamic connection can adapt its orientation during operation, absorbing vibration energy through rotational movement while maintaining the required structural support, thus reducing vibration transmission to the foundation.

Inventive Principle:
Principle #15Dynamics

2Reliability

If rigid clamping is used at both spring ends, then the control strictness is improved, but the transmission of vibrations between counterweight and foundation increases

Engineering Contradiction:
Improvecontrol strictnessVSAvoidvibration transmission
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent modifies the connection parameter from fixed rigid clamping to rotatable articulation. This allows the connection to maintain control and support functions while introducing rotational freedom that prevents vibration transmission. The articulated connection preserves reliability through controlled movement rather than rigid constraint.

Inventive Principle:
Principle #35Parameter changes

3Object-generated harmful factors

If the spring connection is made flexible with rotatable articulation, then vibration transmission is reduced, but the structural rigidity decreases

Engineering Contradiction:
Improvevibration transmissionVSAvoidstructural rigidity
Core Design Contradiction:
Object-generated harmful factorsVSStrength

Solution Approach 1:

The patent employs dynamic rotatable articulation that provides rigidity when needed for structural support while allowing movement to filter vibrations. The articulated connection maintains structural strength through its load-bearing capability while the rotational freedom provides vibration isolation, achieving both requirements simultaneously.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the connection parameter to allow rotational movement while maintaining load-bearing capacity. The articulated spring connection preserves structural rigidity for support functions while introducing rotational flexibility that reduces vibration transmission, achieving both structural strength and vibration isolation.

Inventive Principle:
Principle #35Parameter changes

4Ease of manufacture

If rigid leaf springs are used, then the manufacturing simplicity is improved, but the noise development increases due to vibration transmission

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidnoise development
Core Design Contradiction:
Ease of manufactureVSObject-generated harmful factors

Solution Approach 1:

The patent modifies the connection parameter from rigid clamping to rotatable articulation. This simple parameter change maintains manufacturing ease while fundamentally reducing vibration transmission and associated noise. The articulated connection requires minimal additional manufacturing complexity while achieving significant noise reduction.

Inventive Principle:
Principle #35Parameter changes

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 results in a vibration-free suspension, ensuring smooth running behavior and reduced noise, allowing for precise sorting features and minimizing disruptions to the conveyor system and the environment.

Implementation Method 1

the springs of the second group of springs are connected to the foundation at a respective upper spring end and to the counterweight at a respective lower spring end... at least one free spring section is rotatably articulated in the area of its upper end on the foundation and/or in the area of its lower end on the counterweight

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

at least one free spring section is rotatably articulated in the area of its upper end on the foundation and/or in the area of its lower end on the counterweight... creates a pivot point and thus a vibration radius of the counterweight relative to the Foundation

Methodology Applied
Scientific EffectPivot point rotation: Hinge

Data Source

PatentEP1899245B1Linear vibration conveyor
Publication Date: 2008.11.12 RHEIN NADEL AUTOMATION
  • EP1899245B1 patent drawingFigure 1
  • EP1899245B1 patent drawingFigure 2
  • EP1899245B1 patent drawingFigure 3

AI summary

The invention relates to a linear vibration conveyor (1), comprising a vibrator (2), a counterweight (3) and a base (4). The vibrator (2) is held relative to the counterweight (3) by means of a first spring group and driven by means of a vibrational drive, said counterweight (3) being connected to the base (4) by means of springs (35) of a second spring group, wherein the springs (35) of the second spring group are connected at the upper spring end thereof to the base (4) and, at the lower spring end thereof to the counterweight (3). According to the invention, an advantageous development is achieved, whereby on the springs (35) of the second spring group, at least one free spring section (40) is connected to the base (4) such as to rotate in the region of the upper end thereof and/or connected to the counterweight (3) such as to rotate at the lower end thereof.