Interchangeable Crop Lifter Tips with Bias Pivot
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Solution Overview
Problem
Conventional crop lifters attached to cutting headers struggle with cutting short or downed crops due to their fixed configurations, which are not adaptable to varying soil and crop conditions, leading to inefficiencies and wear issues.
Innovation Solution
A crop lifter apparatus with interchangeable tips and a bias element that allows the base member to pivot, enabling the tips to be adjusted or hardened for different conditions, ensuring effective crop lifting and reducing wear without compromising the base member's malleability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional crop lifters with fixed configurations are used, then the structure is simple and easy to manufacture, but the adaptability to varying soil and crop conditions deteriorates
Solution Approach 1:
The crop lifter is divided into a base member and interchangeable tip members. The tip members can be detached and replaced depending on soil and crop conditions, allowing the system to adapt without redesigning the entire structure. This segmentation enables different tip configurations (e.g., different angles, lengths, or materials) to be used with a single base member.
Solution Approach 2:
The base member is designed as a universal platform that can accommodate multiple types of tip members. This allows a single base structure to perform multiple functions by simply changing the tip member, providing versatility without increasing overall device complexity.
2Duration of action of stationary object
If the crop lifter tips are made of hard material to reduce wear, then the durability improves, but the malleability and ability to follow ground contours deteriorates
Solution Approach 1:
The tip members are separated from the base member, allowing them to be made of hard, wear-resistant material while the base member can remain more flexible. The hard tips provide durability where needed, while the overall structure maintains adaptability through the flexible base and interchangeable design.
Solution Approach 2:
Different tip members can be made from materials with different hardness parameters depending on the specific application requirements. This allows optimization of wear resistance in high-wear areas while maintaining overall system flexibility through material selection and design.
3Ease of manufacture
If the crop lifter has a fixed configuration, then the manufacturing cost is low, but the maintenance cost increases due to wear and inability to adapt
Solution Approach 1:
By segmenting the crop lifter into a reusable base member and replaceable tip members, the design allows for cost-effective maintenance. Instead of replacing or repairing the entire device when tips wear out, only the inexpensive tip members need to be replaced, significantly reducing maintenance costs.
Solution Approach 2:
The tip members are designed as consumable components that can be discarded when worn and replaced with new or refurbished tips. The valuable base member is recovered and reused, reducing overall maintenance and replacement costs.
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 improved adaptability and longevity of the crop lifter tips, enhancing the ability to handle diverse soil and crop conditions while maintaining the durability of the base member, thus improving harvesting efficiency and reducing maintenance costs.
Implementation Method 1
A bias element is operative to exert a bias force on the base member urging a front portion of the base member forward of the lifter pivot axis to pivot downward about the lifter pivot axis
Data Source
AI summary
A crop lifter apparatus has a base member adapted to be attached to a cutting header guard finger about a lifter pivot axis. A plurality of lifter tips with different configurations are releasably attachable to the base member at a mounting position such that the attached lifter tip extends forward from the base member. A bias element is operative to exert a bias force on the base member urging a front portion of the base member forward of the lifter pivot axis to pivot downward about the lifter pivot axis, and the bias force urges the base member to bear against a stop. The tips can be configured to suit various conditions of soils and crops.