Replaceable Coulter with Tungsten Carbide Edge
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Solution Overview
Problem
Existing soil cracking tools face premature wear, leading to high replacement costs as the entire tool must be replaced when the coulter becomes worn, rather than just the worn part.
Innovation Solution
A detachable coulter design with a tungsten carbide leading edge, fixed to the mounting bracket using screws and pins, allowing for easy replacement of the coulter without replacing the entire tool, combined with a robust fixing support and longitudinal bolts for enhanced stability and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the coulter is made as part of an integrated tool, then the tool structure is simple and robust, but the entire tool must be replaced when the coulter wears out
Solution Approach 1:
The coulter is segmented from the tool body and made as a replaceable component. The mounting bracket provides a standardized interface that allows the coulter to be detached and replaced without affecting the main tool structure, resolving the contradiction between structural simplicity and ease of repair.
2Reliability
If the entire tool is replaced when the coulter is worn, then the tool reliability is maintained, but the cost and time loss increase significantly
Solution Approach 1:
By segmenting the coulter as a separate replaceable component mounted on the bracket, only the worn coulter needs to be replaced rather than the entire tool. This maintains tool reliability while significantly reducing replacement time and cost.
Solution Approach 2:
The worn coulter is discarded and replaced with a new one, while the main tool body and mounting bracket are recovered and reused. This selective replacement approach maintains reliability while minimizing resource waste and time loss.
3Duration of action of stationary object
If the coulter is made from hard material like tungsten carbide, then the wear resistance improves, but the manufacturing cost and complexity increase
Solution Approach 1:
Tungsten carbide or other hard materials are applied specifically to the leading edge of the coulter where wear occurs, rather than the entire coulter. This localized application of hard material extends service life while reducing manufacturing cost and complexity compared to making the entire coulter from hard material.
Data Source
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AI summary
The invention relates to a soil fracturing tool (10e), intended to be fixed to a support (12), particularly to the support of a stubble cultivator or subsoiler. The tool comprises a mounting bracket (32) for detachably fixing the tool to the support (12), and a coulter (34) detachably mounted on the mounting bracket (32). The invention also relates to a soil fracturing device comprising such a fracturing tool (10c) and a support (12) on which the fracturing tool is mounted. The invention also relates to a soil fracturing device comprising a support (12) on which such a soil fracturing tool (10e) is mounted.