Double Rolling Basket Linkage for Tillage Orientation
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Solution Overview
Problem
Existing double rolling basket attachments for agricultural tillage implements are difficult to adjust and maintain proper orientation throughout their operational range, leading to inefficient clod size reduction and seed bed preparation.
Innovation Solution
A double rolling basket assembly connected by hanger assemblies and a double link linkage mechanism, which includes upper and lower links and a force applicator, ensures that the baskets remain properly oriented to the ground across the adjustable range, allowing for effective clod size reduction and surface preparation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a double rolling basket arrangement is used to provide twice the contact points on the soil, then clod size reduction and seedbed finish quality are improved, but the difficulty of adjustment and orientation maintenance increases
Solution Approach 1:
The patent applies a dynamic linkage mechanism with upper and lower links that automatically adjust the orientation of the double rolling basket assembly. The linkage allows the assembly to pivot and adapt to different ground conditions and implement positions, maintaining proper contact angle without manual adjustment. This dynamic system resolves the contradiction by providing automatic adaptation rather than fixed rigid mounting.
Solution Approach 2:
The linkage mechanism changes the operational parameters of the basket assembly by allowing variation in the contact angle and position relative to the ground. As the implement moves through its working range, the linkage dynamically adjusts these parameters to maintain optimal orientation, thereby improving ease of operation while preserving seedbed finish quality.
2Manufacturing precision
If a double rolling basket arrangement is used to provide twice the contact points on the soil, then clod size reduction and seedbed finish quality are improved, but the complexity of the device increases
Solution Approach 1:
The linkage mechanism serves multiple functions: it supports the double rolling basket assembly, provides automatic orientation adjustment, allows for depth control, and adapts to varying ground conditions. By consolidating these multiple functions into a single integrated linkage system rather than separate mechanisms, the patent reduces overall device complexity while maintaining improved seedbed finish quality.
Solution Approach 2:
The linkage acts as an intermediary between the implement frame and the double rolling basket assembly, mediating the transmission of forces and motions. This intermediary mechanism simplifies the connection by using a standardized four-bar linkage design that can be universally applied rather than requiring complex custom mounting structures, thereby reducing device complexity.
3Stability of the object's composition
If a fixed angle double basket is set for a specified depth, then proper orientation is maintained at that position, but the basket will not be oriented correctly when operated at other positions within the working range
Solution Approach 1:
The patent replaces the fixed angle mounting with a dynamic linkage system that automatically adjusts the basket assembly's orientation as the implement moves through its working range. The four-bar linkage maintains a constant contact angle through geometric constraints, providing both orientation stability and adaptability across all operational positions without requiring manual readjustment.
Solution Approach 2:
The linkage mechanism employs asymmetric link lengths and pivot point positions to achieve the constant contact angle function. By carefully designing the asymmetric geometry of the four-bar linkage, the system compensates for changes in implement position and maintains proper basket orientation throughout the full working range, resolving the contradiction between stability and adaptability.
Data Source
AI summary
An agricultural tillage implement includes a frame member, a secondary frame member and at least one double rolling basket assembly coupled to the secondary frame member. A plurality of linkage assemblies interconnect the frame member and the secondary frame member. Each linkage assembly includes an upper link connected to upper connections of the frame member and the secondary frame member and a lower link connected to lower connections of the frame member and the secondary frame member. A force applicator operates against one of the links to move the baskets up and down.