Baler Ejector Shuttle Synchronization via Mechanical Link

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Solution Overview

Problem

Existing ejector systems for agricultural balers require multiple actuators, taking up substantial space, which is often not available, to perform partial and full bale ejections independently of the reciprocating plunger.

Innovation Solution

A compact ejector system with a first and second shuttle assembly, each with dogs to engage bales, driven by a first double-acting and second single-acting hydraulic actuator, allowing synchronized movement to enable partial and full bale ejections without the need for extensive redesign.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple actuators are used to enable partial and full bale ejections, then the ejector system can perform all required ejection functions, but the space required increases substantially

Engineering Contradiction:
Improveejection function versatilityVSAvoidspace required
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The patent combines the functions of multiple actuators into a single actuator that controls both shuttle assemblies. The first actuator drives the first shuttle assembly, and through mechanical connection, also drives the second shuttle assembly, eliminating the need for separate actuators and reducing the space required while maintaining both partial and full ejection capabilities

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The single actuator is designed to perform multiple functions by controlling both shuttle assemblies through different operational modes. It can enable partial bale ejection by activating only the first shuttle assembly, and full bale ejection by activating both shuttle assemblies, making it a multi-functional component that replaces what would traditionally require multiple dedicated actuators

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

2Area of stationary object

If a compact ejector system is used to reduce space requirements, then space is saved, but the complexity of synchronizing multiple shuttle assemblies increases

Engineering Contradiction:
Improvespace requiredVSAvoidsynchronization complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent introduces a mechanical connection as an intermediary element between the first and second shuttle assemblies. This mechanical link acts as a mediator that automatically synchronizes the movement of both shuttle assemblies when the first actuator operates, eliminating the need for complex electronic or hydraulic synchronization systems while maintaining compact dimensions

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system uses the motion of the first shuttle assembly itself to automatically drive the second shuttle assembly through the mechanical connection. The first shuttle assembly's movement inherently provides the synchronization signal and mechanical impulse needed for the second shuttle assembly to move in unison, making the system self-synchronizing without requiring external control mechanisms

Inventive Principle:
Principle #25Self-service

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

Enables operators to choose between ejecting the last or both the last and next-to-last bales efficiently, reducing costs and space requirements while maintaining ground clearance, and allowing for easy installation on existing balers.

Implementation Method 1

driven by a first double-acting and second single-acting hydraulic actuator

Methodology Applied
Scientific EffectHydraulic actuation: Hydraulic Press

Data Source

PatentUS8978550B2In-line bale eject system
Publication Date: 2015.03.17 BLUE LEAF I P INC
  • US8978550B2 patent drawing
  • US8978550B2 patent drawing
  • US8978550B2 patent drawing

AI summary

An ejector system for ejecting bales from a bale-forming chamber of an agricultural baler includes a first and second shuttle assembly. The first shuttle assembly reciprocates when being driven. The first shuttle assembly is adapted for establishing mechanical contact with the second shuttle assembly and for driving the second shuttle assembly during movements of the first shuttle assembly in a reverse direction substantially opposite to the forward direction of the bales in the bale-forming chamber, thus synchronizing reverse movement of both shuttle assemblies.