Pivoting Cornhead Divider Lift Assist Linkage
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Solution Overview
Problem
Existing corn head divider lift assist mechanisms require a stationary cross-member between row units, limiting operator access and causing plastic dividers to tear due to spring pressure when lowered, necessitating additional structural support.
Innovation Solution
A corn head divider lift assist linkage with a pivotally coupled elongated member and spring system that lifts the divider without a stationary forward end between row units, allowing full access and distributing spring tension within metal members, eliminating pressure on the plastic divider.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a stationary cross-member is used to support the divider lift mechanism, then the spring can provide lift assistance, but operator access between row units is blocked and plastic dividers may tear from spring pressure
Solution Approach 1:
The cross-member is made movable rather than stationary, allowing it to pivot between a forward position during harvesting operation and a rearward position during maintenance. This dynamic repositioning enables the mechanism to provide lift assistance when needed while clearing the operator's path when access is required, resolving the contradiction between operational support and maintenance accessibility
2Strength
If a stationary cross-member with forwardly extending beam is used, then the spring tension is contained within metal members, but the plastic divider still experiences compression pressure that causes tearing
Solution Approach 1:
The movable cross-member acts as an intermediary element that transfers spring tension forces. During harvesting, it contains the spring tension within the metal linkage system. During maintenance, it repositions to eliminate compression on the plastic divider while maintaining spring tension containment through the metal members, thus protecting the plastic from harmful compression forces
3Stability of the object's composition
If a cross-member is fixed between adjacent row units, then the divider can be supported, but the operator cannot work on the sides of each row unit
Solution Approach 1:
The cross-member transitions from a fixed stable position during harvesting to a movable repositioned state during maintenance. This dynamic capability allows the system to provide stable divider support when needed while enabling operator access to row unit sides when required, resolving the contradiction between structural stability and maintenance accessibility
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 solution provides unobstructed access between row units during maintenance and prevents plastic divider deformation by managing spring tension within the linkage, ensuring efficient operation and extended component lifespan.
Implementation Method 1
A spring is connected to the first member at one end and to a second member at the other end
Data Source
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AI summary
A corn head divider lift assist linkage comprises two members and a spring pivotally coupled together, wherein one of the two members is pivotally coupled to a row crop divider and another of the two members is pivotally coupled to a bracket that is fixed at the rear of two adjacent row units.