Adjustable Chisel Coulter Wing Alignment Mechanism
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Solution Overview
Problem
Existing seed coulter designs, such as chisel coulters, face challenges in adjusting the penetration depth and maintaining optimal alignment of coulter wings relative to the soil surface, leading to inefficient soil engagement and material distribution during sowing operations.
Innovation Solution
The seed coulter features adjustable coulter wings attached to the ripping chisel, allowing horizontal adjustment about a transverse axis, secured by an eccentric adjusting device with interlocking projections, ensuring optimal alignment and secure fixation, and incorporates a roof-shaped baffle plate for uniform material distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the coulter wings are fixedly mounted on the coulter body, then the structure is simple and robust, but the alignment of coulter wings to the soil surface deteriorates when penetration depth changes
Solution Approach 1:
The coulter wings are made adjustable relative to the coulter body through a mounting mechanism that allows changing their angular position. This enables the alignment to be adapted dynamically when penetration depth changes, resolving the contradiction between fixed simple structure and variable alignment requirements
2Manufacturing precision
If the ripper chisel is adjustable with coulter wings about a horizontal axis, then the alignment is optimized at any penetration depth, but the device complexity increases
Solution Approach 1:
The adjustment mechanism is segmented into modular components including an adjustment device with adjustable elements that can be independently positioned and fixed. This segmentation allows the complex adjustment function to be achieved through simpler, standardized components rather than a monolithic complex mechanism
3Reliability
If the adjusting element is secured with positively engaging projection and recess, then the fixing security is improved, but the adjustment device complexity increases
Solution Approach 1:
The positively engaging projection and recess create a self-locking mechanism that automatically secures the adjusting element in its positioned state without requiring additional fastening components. The geometry of the engagement features provides inherent security against independent adjustment during operation, achieving reliable fixation through the basic adjustment device structure itself
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enables precise adjustment of the ripping chisel and coulter wings to compensate for changes in penetration depth, ensuring efficient soil engagement and uniform seed/fertilizer distribution, even in varying soil conditions.
Implementation Method 1
the adjusting device has at least one adjusting element which is rotatable about a horizontal axis running transversely to the direction of travel, is eccentrically designed and has adjusting surfaces arranged at different distances from the axis of rotation
Data Source
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AI summary
The invention relates to a sowing coulter, in particular a chisel coulter (7), preferably for the direct and/or mulch sowing method, comprising a coulter body (23), in the lower front region of which and at the front side of which coulter body (23), a tear-open chisel (17), which is fastened by means of a fastening device (24), and coulter blades (26) laterally projecting from the tear-open chisel (17) and provided with a front cutting edge (25), are arranged in order to create a sowing furrow in the ground. In order to create a simplified fastening of the coulter blades (26), and at the same time an improved adjustment of the tear-open chisel (17) having the coulter blades (26) with respect to the coulter body (23) by changing the penetration depth of the sowing coulter (7) into the ground such that an optimized adjustment and orientation of the coulter blades (26) to the ground at any penetration depth of the sowing coulter (7) in the ground is maintained, according to the invention, the coulter blades (26) are arranged on the tear-open chisel (17), the tear-open chisel (17) having the coulter blades (26) is adjustable about a horizontal axis (27) that extends transversely to the direction of travel, and that is fixable in different positions by way of an adjustment device (28) arranged between the tear-open chisel (17) and the coulter body (23).