Rolling Hoe Tilting Mechanism for Depth Control
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Solution Overview
Problem
Traditional rolling hoes are limited to a single cultivation depth, which affects their ability to maintain cultivation width and rotation intensity when adjusting the angle with the soil, leading to inefficiencies in soil cultivation and seed bed preparation, especially in varying soil conditions.
Innovation Solution
The rolling hoe is adjusted by turning around a shaft parallel to the intersection of its rotation plane and the soil surface, allowing for independent control of cultivation depth without altering the cultivation width or rotation intensity, enabling effective operation in both thin and thick soil layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the angle of the rotation plane of the hoe wheel with the soil is reduced to increase cultivation width, then the cultivation width is improved, but the rotation intensity of the rolling hoe is reduced
Solution Approach 1:
The patent changes the adjustment mechanism from rotating the entire hoe body around a vertical axis to tilting the hoe body around a horizontal axis parallel to the soil surface. This dimensional change in the adjustment mechanism allows independent control of the rotation plane angle without affecting the cultivation width, thereby resolving the contradiction between cultivation width and rotation intensity
2Productivity
If the angle of the rotation plane of the hoe wheel with the soil is increased to improve rotation intensity, then the rotation intensity is improved, but the cultivation width is reduced
Solution Approach 1:
By changing the adjustment mechanism to tilt the hoe body around a horizontal axis rather than rotating around a vertical axis, the patent enables independent adjustment of the rotation plane angle. This allows optimization of rotation intensity for breaking clods while maintaining the full cultivation width through proper positioning of the hoe wheel on the support wheel
3Adaptability or versatility
If the rolling hoe is adjusted for different cultivation depths by traditional angle adjustment, then the cultivation depth is changed, but either uncultivated soil bands remain or the rolling hoe does not roll properly
Solution Approach 1:
The patent introduces a new adjustment mechanism that tilts the hoe body around a horizontal axis parallel to the soil surface, changing the angle of the rotation plane independently. This allows precise control of cultivation depth while maintaining proper rolling contact with the soil, eliminating the problem of uncultivated bands or improper rolling that occurs with traditional adjustment methods
Solution Approach 2:
The patent changes the adjustment parameter from vertical rotation angle to horizontal tilt angle of the hoe body. This parameter change enables independent control of the rotation plane angle, allowing the cultivation depth to be adjusted without compromising the rolling action or leaving uncultivated soil bands
Data Source
Figure 1
Figure 2~2A
Figure 3~4
AI summary
This invention relates to a rolling hoe, mainly for soil surface cultivation works, comprising a supporting structure suspended on a power machine and at least one hoe body hinged to the supporting structure. The hoe body (4) has at least one hoe wheel (12) embedded in a manner capable of being turned around an adjustment axle (18) and capable of being adjusted so that its rotation plane (16) and a soil surface (9) enclose a first angle (20) of 5°-70°, while a line of intersection (17) of its rotation plane (16) with the plane of the soil surface (9) and a direction of advance (8) of the rolling hoe (1) enclose a second angle (21) of 5°-80°. The hoe wheel (1) has teeth (14) starting bending backwards, compared to a rotation direction (6) of the hoe wheel. For adjustment of a cultivation depth (19) of the rolling hoe (1), but without any changing of cultivation width (15), the adjustment axle (18) is arranged parallel with the line of intersection (17) of the rotation plane (16) of the hoe wheel (12) and the plane of the soil surface (9).