Share Tip with Recessed Guide Element Protection
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Solution Overview
Problem
Existing agricultural soil cultivating machine tools face issues with the guide plate bending or being shorn off under harsh conditions, leading to impaired functionality due to exposure to soil material and inadequate protection of fastening elements.
Innovation Solution
A share tip design with a recessed area that protects the guide element and securing screw from soil impact, featuring a covering section, locking pieces for form-fitting alignment, and a deflector projection to shield the screw head from wear, allowing for secure attachment and reduced fastener requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the guide plate is placed onto the share tip to cover the surface areas, then the functionality is improved by protecting the blades, but the guide plate is bent and shorn off under harsh conditions, causing significant impairment
Solution Approach 1:
The guide element is divided into a protected region (within the recess) and an exposed region (extending beyond the covering section). This segmentation allows the critical fastening areas to be protected while maintaining the guide element's functionality in the exposed region.
Solution Approach 2:
The guide element is nested within the recess of the share tip base part, with the recess providing a protective cavity. The covering section acts as a protective shell over the nested guide element, shielding it from soil material impact while allowing the guide element to extend beyond for its guiding function.
2Strength
If the guide plate and share tip are fastened with a fastening screw through flush threaded openings, then the assembly is secured, but the screw head and threaded openings are exposed to soil material causing wear
Solution Approach 1:
The threaded opening of the share tip is nested within the recess, positioning it behind the covering section. This nesting arrangement protects the threaded opening and screw head from direct exposure to soil material, reducing wear on these critical fastening elements.
Solution Approach 2:
The covering section acts as an intermediary protective barrier between the soil material and the fastening elements (threaded opening and screw head). It shields these elements from direct contact with abrasive soil while still allowing the fastening function to operate effectively.
3Ease of operation
If the guide element extends beyond the share tip to guide the tool, then the guiding function is improved, but the free end of the guide element is struck by soil material causing bending and twisting
Solution Approach 1:
The guide element has different protection levels at different locations: the region within the recess is protected from soil impact, while the region extending beyond the covering section is exposed to perform the guiding function. This local differentiation allows the guide element to maintain its alignment where protected while still providing guidance where exposed.
4Strength
If multiple fastening screws are used to secure the guide plate and share tip, then the connection strength is improved, but the number of fastening elements and complexity increases
Solution Approach 1:
The threaded opening of the guide element is nested within the recess of the share tip, allowing a single fastening screw to pass through both components in a nested arrangement. This nesting enables secure fastening with fewer elements compared to requiring separate fasteners for each component.
Data Source
AI summary
A tool combination, including a share tip and an adjoining guide element, wherein the share tip and the guide element have threaded receptacles for fastening to a tine. An easy and secure fastening of both the share tip and the guide element is achieved according to this invention if the guide element has a threaded receptacle which is covered in the tool advancement direction by a cover portion of the share tip.