Agricultural Harrow Angle Adjustment Device
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Solution Overview
Problem
Tandem agricultural harrows face difficulties in adjusting working angles due to vibrations and bumps at higher speeds, and existing mechanisms for regulating angles are complex and difficult to operate, especially in different planes.
Innovation Solution
An angle adjustment device for disc sections with a simplified construction, featuring articulation elements, a partially threaded adjustment shaft, and adjustment nuts, allowing for both horizontal and transverse angle adjustments, along with a graduated scale and crank mechanism for precise operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing mechanisms for regulating working angles are used, then angle adjustment is possible, but the construction becomes complex and operation becomes difficult
Solution Approach 1:
The adjustment mechanism is divided into separate functional components: articulation elements for horizontal plane adjustment and adjustment nuts on a threaded shaft for transverse plane adjustment. This segmentation allows each component to perform a specific function with simple construction, avoiding the need for complex integrated mechanisms while maintaining full angle adjustment capability in both planes
Solution Approach 2:
The articulation elements serve multiple functions: they connect the disc carrier beams to the main structure, enable horizontal angle adjustment, and provide pivot points for the adjustment shaft. This multi-functionality reduces the number of separate components needed, simplifying the overall construction while maintaining adaptability
2Adaptability or versatility
If existing angle regulation mechanisms are used, then working angle can be changed, but the operation becomes difficult especially in different planes
Solution Approach 1:
The mechanism uses a threaded adjustment shaft with nuts that can be easily rotated and locked into position, allowing dynamic adjustment of angles in both horizontal and transverse planes. The operator can quickly change working angles by simply rotating the nuts along the threaded shaft, making the operation simple and intuitive regardless of the plane of adjustment
Solution Approach 2:
The complex mechanical linkage systems traditionally used for multi-plane angle adjustment are replaced with a simpler threaded shaft and nut mechanism. This substitution maintains the ability to adjust angles in different planes while dramatically simplifying the operation, as the operator only needs to rotate nuts rather than manipulate complex linkages
3Stability of the object's composition
If traditional harrow designs are used, then structural stability is maintained, but performance at higher working speeds deteriorates due to vibrations and bumps
Solution Approach 1:
The disc carrier beams are designed to be adjustable in angle rather than fixed, allowing the harrow to dynamically adapt to varying soil conditions and vibrations at higher speeds. The ability to change angles in both horizontal and transverse planes enables the structure to maintain stability by optimizing the orientation of disc sections relative to the ground, improving reliability during high-speed operation
Data Source
AI summary
Presently described is a device (1) for adjusting the angle of disc sections for agricultural harrows which comprises at least one articulation element (10) configured to be pivotally attached to a beam (200) of an agricultural harrow (2), the articulation element (10) being configured to be pivotally attached to an adjustment shaft (20), thus allowing the angular adjustment of the beams of the agricultural harrow sections in both a horizontal plane and a vertical/transverse plane, comprising simple construction when compared to solutions existing in the prior art, making use of few components to allow both adjustments, and providing simple, practical and fast operation, requiring few manipulation steps.