Jog Drive System for Work Machine Component Positioning

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Solution Overview

Problem

Existing drive systems for work machines, such as agricultural balers, require multiple people to manually rotate heavy components for adjustments, making precise positioning and maintenance challenging, especially in field settings where additional help may not be available.

Innovation Solution

A jog drive system is introduced, connectable within the primary drive system, allowing for slower operation and precise positioning of machine components through a jog motor that can be activated and controlled via a remote switch, enabling single-operator adjustments and maintenance without the need for multiple people.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual rotation of heavy flywheel is used for maintenance and adjustment, then precise positioning of components can be achieved, but multiple people are required and operation becomes difficult

Engineering Contradiction:
Improvepositioning precisionVSAvoidoperation difficulty
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

A jog switch is introduced as an intermediary control device between the operator and the flywheel rotation system. The jog switch enables incremental, controlled rotation of the flywheel in small steps, allowing precise positioning of components without requiring manual rotation by multiple people. The switch acts as a mediator that translates simple operator input into controlled mechanical movement.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The manual mechanical rotation system is replaced with an electrically-controlled jog drive system. Instead of relying on human physical effort to rotate the heavy flywheel, an electric motor connected through a jog switch provides controlled rotational movement. This substitution eliminates the need for multiple operators while maintaining positioning precision.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If manual rotation of flywheel is used to move components to prescribed positions, then components can be positioned for adjustment, but additional personnel are needed and field adjustments become impractical

Engineering Contradiction:
Improvefield adjustment capabilityVSAvoidpersonnel required
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The system enables self-service maintenance and adjustment operations. The single operator can independently control the flywheel rotation using the jog switch to position components for adjustment without requiring assistance from other personnel. This self-service capability makes field adjustments practical and independent.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The jog switch serves as an intermediary control that bridges the gap between the operator and the heavy flywheel system. It provides a simple interface that allows one person to control the rotation and positioning of components, eliminating the need for additional personnel in field settings.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If flywheel is rotated manually for maintenance procedures, then components can be advanced through operating cycle for observation, but precise stopping at desired positions is difficult

Engineering Contradiction:
Improvepositioning accuracyVSAvoidcontrol complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The jog switch operates on a periodic action principle, allowing the operator to advance the flywheel in small, discrete steps rather than continuous rotation. Each press of the jog switch produces a controlled increment of rotation, enabling precise stopping at desired positions through incremental positioning rather than requiring complex continuous control mechanisms.

Inventive Principle:
Principle #19Periodic 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 jog drive system facilitates solo operation of work machines by allowing precise, controlled movement of components at slower speeds, enhancing maintenance efficiency and accessibility, reducing the need for additional personnel during field adjustments.

Implementation Method 1

a jog motor for selectively drivingly engaging the flywheel

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS8113078B2Entire machine jog drive
Publication Date: 2012.02.14 DEERE & CO
  • US8113078B2 patent drawing
  • US8113078B2 patent drawing
  • US8113078B2 patent drawing

AI summary

A work machine jog drive includes a jog motor configured to operate components of the work machine primary drive system in a slow controllable manner to operate performance system components of the work machine for adjustment, maintenance and other purposes.