Adjustable Chain Disc Harrow Frame for Variable Soil Tillage
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Solution Overview
Problem
Existing chain disc harrow devices lack the ability to easily adjust soil tillage based on varying boundary conditions, limiting their adaptability and effectiveness in different soil types and conditions.
Innovation Solution
A chain disc harrow device with a frame structure that allows for adjustable angles of attack by attaching chain disc harrows to movable parts of the frame, enabling variable aggressiveness through hydraulic and/or mechanical mechanisms, and a mechanism for adjusting chain tension to maintain optimal performance across different angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the chain disc harrow is attached to a fixed frame structure, then the structural stability is maintained, but the adaptability to different soil conditions is reduced
Solution Approach 1:
The patent applies the dynamics principle by making the frame structure adjustable rather than fixed. The attachment points for the chain disc harrow are designed to be movable along the longitudinal direction, allowing the angle of attack to be dynamically changed according to different soil conditions and tillage requirements, thus resolving the contradiction between adaptability and structural simplicity.
2Adaptability or versatility
If the angle of attack is fixed, then the device simplicity is maintained, but the tillage effectiveness for different soil types is limited
Solution Approach 1:
The patent implements adjustable attachment sections that can be displaced relative to the central section, enabling the angle of attack to be dynamically adapted to different soil types and tillage intensities. This dynamic adjustment capability resolves the contradiction between tillage effectiveness and operational simplicity.
Solution Approach 2:
The patent changes the geometric parameter of the angle of attack by allowing the attachment sections to be positioned at different locations along the longitudinal direction. This parameter adjustment enables the same device to effectively handle different soil types and tillage requirements without complicating the overall operation.
3Productivity
If the chain disc harrow operates at high angle of attack, then the soil disturbance is increased, but the mechanical stress on the device increases
Solution Approach 1:
The adjustable frame structure allows the operator to dynamically optimize the angle of attack based on soil conditions and desired tillage intensity. By adjusting the attachment section position, the device can operate at optimal angles that balance soil disturbance effectiveness with mechanical stress reduction, thereby maintaining both productivity and reliability.
Data Source
Figure 1
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AI summary
The invention relates to a chain disc harrow device (10) comprising a chassis (12); a frame structure (14) connected to the chassis (12); at least one chain disc harrow (20) having several disc harrows (22) connected to each other by means of a chain structure (24); wherein the chain disc harrow (20) is attached to two different parts of the frame structure (14) which are movable relative to each other in order to change an angle of attack (a) of the chain disc harrow (20) with respect to a direction of travel of the chain disc harrow device (10).