Cultivator Point With Offset Secondary Cutting Elements
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Solution Overview
Problem
Existing soil cultivation tools face challenges in optimizing penetration for better cutting results and often require high pulling power, leading to undesirable sole formation and increased wear.
Innovation Solution
The soil cultivation tool features a breaker bar and groove configuration that breaks up clods, with secondary cutting elements arranged in alignment or parallel to the main cutting element, providing a stepped cutting action and improved penetration, while reducing pulling power and wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the secondary cutting elements are arranged obliquely in a V-shape relative to the main cutting element, then the cutting action is achieved, but the cutting result is unclear and the pulling power required is high
Solution Approach 1:
The patent changes the geometric parameters of the cutting elements by arranging the secondary cutting elements in alignment with the main cutting element instead of the traditional oblique V-shape. This parameter change in arrangement configuration produces clean, straight cuts and reduces the pulling power required for effective cutting.
2Object-generated harmful factors
If the cutting elements are arranged with larger spacing, then sole formation is avoided, but the cutting action effectiveness may be reduced
Solution Approach 1:
The patent segments the cutting action into multiple stages by using a main cutting element and multiple secondary cutting elements arranged in specific spacing. This segmentation allows material to be removed in steps, preventing sole formation while maintaining cutting effectiveness through the coordinated action of separated cutting elements.
Solution Approach 2:
The patent applies partial cutting action through multiple secondary cutting elements that work in sequence rather than one large cutting element. This partial action approach removes material in controlled portions, preventing excessive material displacement that leads to sole formation while maintaining overall cutting effectiveness.
3Length of stationary object
If longer hard metal cutting elements are used, then the share width is increased, but the production cost increases
Solution Approach 1:
The patent segments the cutting function across multiple shorter hard metal elements (one main and multiple secondary cutting elements) instead of using one long hard metal element. This segmentation allows the use of shorter, more cost-effective hard metal lengths while achieving the same overall share width and cutting capability.
Solution Approach 2:
The patent uses multiple shorter hard metal cutting elements that can be individually replaced when worn, rather than replacing one long expensive hard metal element. This approach reduces production costs by using shorter hard metal lengths while maintaining the required share width through the multi-element configuration.
Data Source
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AI summary
The invention relates to a soil cultivation tool, in particular a cultivator point with a carrier which carries a main cutting element (20) and at least two secondary cutting elements (21) on a cutting holder (13), wherein both the main cutting element (20) and the secondary cutting elements (21) each have a cutting edge. In order to optimize penetration for a better cutting result, the cutting edges of the secondary cutting elements (21) are arranged offset from the cutting edges of the main cutting element (20).