Seed Drill Pressing Device Central Adjustment Mechanism
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Solution Overview
Problem
Existing seed drills require operators to adjust multiple separate elements to set the working pressure and depth of the spreading and/or pressing device, making the process inconvenient and error-prone.
Innovation Solution
A central adjustment element is provided that acts on all support arms, allowing for the adjustment of working pressure and depth with a single control, reducing the complexity and increasing accessibility and accuracy of the adjustment process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate adjustment elements are used for each support arm, then each support arm can be adjusted independently, but the adjustment process becomes inconvenient and error-prone
Solution Approach 1:
The patent combines multiple separate adjustment elements into a single central adjustment element that acts on all support arms simultaneously. This merging approach maintains the ability to adjust each support arm independently while eliminating the need for operators to manipulate multiple separate controls, thereby resolving the contradiction between independent adjustment capability and operational convenience
Solution Approach 2:
The central adjustment element is designed with multi-functionality to control all support arms through a single interface. This universal adjustment mechanism allows one element to perform the function of multiple separate elements, enabling independent adjustment of each arm while simplifying the operator's task to a single control action
2Device complexity
If multiple separate adjustment elements are distributed at different positions, then each can be accessed locally, but the overall setting becomes complex and error-prone
Solution Approach 1:
By merging multiple distributed adjustment elements into a single central adjustment element, the patent reduces the overall complexity of the adjustment system. The central element maintains the functional capability to adjust each support arm independently while eliminating the complexity of coordinating multiple separate settings, thereby improving setting accuracy and reducing errors
3Ease of operation
If the central adjustment element is arranged on the side of the machine, then it is easily accessible to the operator, but it must act on all support arms across the entire width
Solution Approach 1:
The patent introduces linkage mechanisms or arms that act as intermediaries between the centrally located adjustment element and the distributed support arms. These intermediaries transmit the adjustment force and motion from the single central control point to all support arms across the machine width, enabling easy operator access while maintaining effective control over all components
Data Source
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AI summary
Agricultural seed drill (1) comprising a main frame, a frame element (9) arranged on the main frame and supporting a loading platform (8), several seed coulter units (5) articulated to the main frame via retaining elements for distributing seed, and a spreading and/or pressing device (11) which comprises at least one support beam (12) arranged transversely to the direction of travel (F), which is attached to at least one support arm (14) projecting forward in the direction of travel and pivotally attached in the front area, and on which several spreading and/or pressing elements are arranged transversely to the direction of travel, wherein the spreading and/or pressing device (11) is raised, lowered and/or subjected to pressure against the ground by means of at least one adjustment element (15).To provide an arrangement by means of which a convenient and error-free adjustment of the spreading and/or pressing device of a seed drill is possible, a central adjustment element (15) is provided, arranged on one side of the machine and acting on all support arms (14).