Agricultural Scraper Assembly Inner Outer Coupling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Certain agricultural row units lack a mounting system for an inner scraper, making it expensive and time-consuming to add one, as the existing frame must be replaced or modified, which hinders efficient removal of accumulated soil from both surfaces of the opener discs.
Innovation Solution
A scraper assembly with an inner scraper that engages the inner surface of the opener disc and an outer scraper that engages the outer surface, coupled by a fastener, with an engagement feature to block rotation, allowing for effective soil removal from both sides without requiring direct coupling to the frame, thus enabling use on existing frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an inner scraper is added to a row unit frame that is not configured to receive one, then soil removal capability is improved, but device complexity and manufacturing cost increase due to frame replacement or modification
Solution Approach 1:
The outer scraper is designed to serve dual functions: its primary function of removing soil from the outer surface of the opener disc, and a secondary function of serving as a mounting structure for the inner scraper. The fastener system couples the inner scraper to the outer scraper, allowing the outer scraper to act as a universal mounting platform that eliminates the need for frame modification while enabling inner scraper installation on any row unit frame.
2Productivity
If the frame is replaced or modified to receive an inner scraper, then soil removal from inner surface is enabled, but loss of time and increased cost occur
Solution Approach 1:
The scraper system is segmented into independent components: the outer scraper that mounts to the frame, and the inner scraper that couples to the outer scraper via fasteners. This segmentation allows the inner scraper to be installed as a separate module without requiring frame replacement or modification, significantly reducing installation time and cost while maintaining the ability to remove soil from both surfaces of the opener disc.
3Reliability
If an inner scraper is coupled directly to the frame, then mounting stability is improved, but device complexity increases due to additional mounting requirements
Solution Approach 1:
The mounting functions are merged into a unified system where the outer scraper serves as both the primary mounting element to the frame and the secondary mounting platform for the inner scraper. The fastener system combines the functions of securing the inner scraper to the outer scraper while the outer scraper's attachment to the frame provides overall system stability, eliminating the need for separate mounting mechanisms.
Data Source
AI summary
A scraper assembly of an agricultural row unit includes an inner scraper configured to engage an inner surface of a disc. The scraper assembly also includes a fastener configured to couple the inner scraper to an outer scraper configured to engage an outer surface of the disc. In addition, the inner scraper has an engagement feature configured to contact the outer scraper and/or a frame of the agricultural row unit to block rotation of the inner scraper about the fastener relative to the outer scraper.