Detachable Crop Divider Knife Mounting Assembly
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Solution Overview
Problem
Agricultural harvesting machines face issues with tall, weak crops like canola or rapeseed becoming entangled with neighboring plants, leading to unharvested crop material as they are dragged behind the draper header due to strong winds or late growth, causing loss and inefficiency in harvesting.
Innovation Solution
An improved mounting and drive arrangement for the crop divider knife, featuring a hydraulic motor, output coupling, and a mounting assembly with engaging hooks and latches, allowing for easy attachment and detachment of the cutting device to the crop divider, ensuring effective cutting and division of crops at the ends of the header.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a crop divider knife is installed at the end divider to cut through entangled crops, then the ability to sever and divide crops is improved, but the complexity of the header structure increases
Solution Approach 1:
The crop divider knife is implemented as a separate, detachable module that can be independently installed and removed from the header. This segmentation allows the cutting function to be added only when needed, without permanently increasing the base header structure complexity.
Solution Approach 2:
The mounting assembly with engaging hooks and latches is designed to accommodate different cutting device configurations and crop types. The same mounting structure can hold various knife arrangements (single knife, double knife, rotating mechanisms) providing universal functionality while maintaining simple installation procedures.
2Ease of operation
If a detachable mounting assembly with hooks and latches is used for the cutting device, then the ease of attachment and detachment is improved, but the reliability of secure mounting during operation may worsen
Solution Approach 1:
The mounting assembly incorporates movable latches that can be easily engaged and disengaged by the operator for quick attachment and detachment. During operation, the latches automatically lock into secured positions, providing dynamic adaptability between ease of operation and secure mounting states.
Solution Approach 2:
The engaging hooks are designed with inherent mechanical features that prevent accidental disengagement during vibration and jerking motions. The latch mechanism includes built-in safety features that maintain secure engagement under operational stresses, cushioning against potential mounting failures before they occur.
3Ease of repair
If the cutting device is made easily detachable for maintenance, then the ease of repair is improved, but the device complexity increases
Solution Approach 1:
The cutting device is designed as a self-contained module with the mounting assembly as a separate interface component. This segmentation allows the cutting device to be quickly detached for maintenance without affecting the header structure, while the mounting assembly itself remains a simple, standardized component that does not add significant complexity.
Data Source
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AI summary
A vertical crop divider knife (19) is mounted at each end of the cutter bar (15) of a header and stands upwardly from the end to cut crop tending to collect over the end divider (18). Each divider knife includes a drive linkage (21) in the housing (20) for communicating drive to the knife sickle bar. Each divider housing has a mounting assembly for coupling to a cooperating mounting assembly on the housing of the crop divider knife structure by which the crop divider knife structure is readily attachable to the crop divider housing using a hook coupling (48) at the bottom and a latch (46, 47) at the top for operation and releasable from the crop divider housing when not required. The divider housing carries a hydraulic motor (40) and a forwardly facing output coupling mounted on the divider housing which automatically meshes with an input coupling on the knife housing when the knife drive housing is installed.