Dual Auger Baler for Stable Bale Stacking

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Solution Overview

Problem

Single auger balers produce bales with unstable stacking characteristics due to a circular high-density region in the middle and lower density regions near the corners, leading to tipping when stacked vertically.

Innovation Solution

A dual auger system within a common auger housing produces bales with a rectangular cross-sectional shape, featuring multiple high-density points of contact when stacked, improving stability through a specific auger layout and stripper configuration to redistribute crop material effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single auger is used to compress crop material, then the bale production process is simple, but the stacking stability is poor due to circular high-density region and lower density regions near corners

Engineering Contradiction:
Improveauger system complexityVSAvoidbale stacking stability
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

The single auger compression system is segmented into multiple augers (first auger and second auger) positioned at different locations within the auger housing. Each auger creates its own compression zone and high-density region, resulting in multiple contact points that improve stacking stability while maintaining manageable system complexity through modular arrangement.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the bale are given different density characteristics through the multi-auger configuration. The first auger creates a high-density region at its location, the second auger creates another high-density region, and corner regions are specifically addressed by stripper positioning. This local quality variation ensures stable stacking throughout the entire bale structure.

Inventive Principle:
Principle #3Local quality

2Stability of the object's composition

If a dual auger system is implemented to improve stacking stability, then multiple high-density points of contact are created, but the device complexity increases

Engineering Contradiction:
Improvebale stacking stabilityVSAvoidauger system complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

Multiple augers are merged within a single common auger housing, sharing common structural support, drive mechanisms, and control systems. This combining approach creates multiple high-density contact points for improved stacking stability while avoiding the complexity of completely separate auger systems, as the augers operate cooperatively within a unified structure.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The common auger housing serves multiple functions: it contains both the first and second augers, provides structural support for the entire compression system, and facilitates the coordinated operation of multiple augers. This multi-functionality reduces overall device complexity by consolidating what could be separate systems into a single integrated unit.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Manufacturing precision

If stripers are positioned to redirect crop material concentration, then the density distribution is improved, but the manufacturing complexity increases

Engineering Contradiction:
Improvedensity distribution uniformityVSAvoidstripper configuration complexity
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

Strippers are positioned to redirect and concentrate crop material into the compression zone before the augers arrive. This preliminary action ensures that material is properly distributed and concentrated in advance, creating uniform density distribution in the final bale without requiring complex real-time adjustments during compression, thereby simplifying the overall manufacturing process.

Inventive Principle:
Principle #10Preliminary action

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

The dual auger system enhances the stacking stability of bales by creating a wider and taller cross-sectional shape with multiple high-density points of contact, significantly improving the stacking characteristics compared to single auger balers.

Implementation Method 1

a compression system utilizing multiple augers to compress the crop material

Methodology Applied
Scientific EffectMechanical compression: Compression

Implementation Method 2

a first auger at least partially positioned within the volume and rotatable with respect to the auger housing about a first axis

Methodology Applied
Scientific EffectScrew conveyance: Archimedes Screw

Data Source

PatentEP3369305B1Baler
Publication Date: 2020.07.01 DEERE & CO
  • EP3369305B1 patent drawingFigure 1A
  • EP3369305B1 patent drawingFigure 1B
  • EP3369305B1 patent drawingFigure 2~3

AI summary

A baler is described. The baler comprises a frame (14), a feed system (22) coupled to the frame (14), an auger housing (160) coupled to the frame (14) and in operable communication with the feed system (22), the auger housing (160) having an exterior wall (180) including a first open end (168), a second open end (172) opposite the first open end (168), and defining a volume (184) therein, characterized in that a first auger (164a)is at least partially positioned within the volume (184) and rotatable with respect to the auger housing (160) about a first axis (176a); and a second auger (164b) is at least partially positioned within the volume (184) and rotatable with respect to the auger housing (160) about a second axis (176b).