Soil Working Tool Wave-Shaped Cutting Edge Vibration Control
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Solution Overview
Problem
Existing soil cultivation tools with wave-shaped cutting edges experience significant vibration due to the angle of attack, which current designs are unable to fully mitigate, leading to inefficient soil engagement and machine instability.
Innovation Solution
A soil cultivation tool with a cutting edge that is continuously curved and sinusoidal in shape, featuring no straight sections and an axial extension of 8 to 17 cm, designed to distribute mechanical stress uniformly, reducing vibration and enhancing smooth operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the cutting edge has straight sections, then the structure is simpler and easier to manufacture, but the disc body experiences uneven mechanical stress and increased vibration
Solution Approach 1:
The cutting edge is designed with a continuous wave shape consisting of curved segments instead of straight sections. This curvature ensures that the disc body experiences uniform mechanical stress during rotation, eliminating the vibration caused by straight edge sections while maintaining manufacturing feasibility through standard bending and welding processes.
2Object-generated harmful factors
If the cutting edge has wave shape with curved segments, then the mechanical stress is distributed evenly and vibration is reduced, but the manufacturing complexity increases
Solution Approach 1:
The wave-shaped cutting edge is divided into multiple individual curved segments that can be manufactured separately and then assembled together. This segmentation allows each segment to be produced using standard manufacturing processes, reducing the overall complexity while achieving the vibration-reducing wave shape through modular construction.
3Productivity
If the angle of attack is increased to improve soil engagement, then the tillage effectiveness is improved, but the vibration tendency of the tool increases
Solution Approach 1:
The wave shape of the cutting edge with continuous curvature distributes the soil engagement forces more evenly throughout the rotation cycle, allowing the tool to maintain a higher angle of attack for improved tillage effectiveness while the curved geometry prevents the concentrated stress peaks that cause vibration.
Data Source
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AI summary
The invention relates to a soil cultivation tool (10) with a disc body (12) which has a circumferential cutting edge (20), wherein the cutting edge (20) has a wave shape.