Swather Rotor Height Adjustment via Stroke Intervals
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Solution Overview
Problem
The working height of windrowing rotors in rakes is difficult to adjust during operation, distracting operators from steering the towing vehicle and other activities as they need to manually control both the steering and the height adjustment mechanism.
Innovation Solution
A method where the adjustment path of the height adjustment device is divided into stroke intervals, allowing operators to input the number of intervals on an input unit, enabling the control device to automatically adjust the working height without requiring continuous manual control, thus simplifying the process and reducing operator distraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual control of height adjustment device is used, then working height can be adjusted, but operator attention is distracted from steering the towing vehicle
Solution Approach 1:
The height adjustment device automatically adjusts the working height based on pre-stored height values in the memory device, eliminating the need for continuous manual operator intervention. The system serves itself by autonomously controlling the actuator to maintain optimal raking height.
Solution Approach 2:
Multiple working height values are pre-stored in the memory device for different raking conditions. The operator can select from these predetermined values, and the system automatically retrieves and applies the appropriate height setting without requiring manual adjustment during operation.
2Measurement precision
If button or lever is pressed continuously for height adjustment, then desired working height can be reached, but operator workload increases
Solution Approach 1:
The manual mechanical control (button or lever pressing) is replaced by an electronic control system. The control device sends electronic signals to the actuator based on memory-stored values, substituting the mechanical continuous pressing operation with an automated electronic control mechanism.
Solution Approach 2:
The memory device acts as an intermediary between the operator's height selection and the actual height adjustment execution. Instead of direct manual control, the system uses the memory device to store and retrieve height values, and the control device to mediate the adjustment process.
3Adaptability or versatility
If height adjustment device is operated during raking, then working height can be changed, but raking efficiency decreases
Solution Approach 1:
The system dynamically adjusts the working height during raking operations based on stored values, allowing the height to change adaptively without interrupting the raking process. The actuator continuously or periodically adjusts the rotor position while the raking operation continues uninterrupted.
Data Source
Figure 1
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Figure 3A
AI summary
Method for adjusting the working height (H) of swath rotors (6a - 6d) of a swather (1), wherein the swath rotors (6a - 6d) are adjusted individually, in groups or together when setting the working height (H) relative to an agricultural area (B) along an adjustment path (V) with a height adjustment device (8a - 8b), characterized in that the adjustment path (V) is stored in a control device (9) divided into preferably equal stroke intervals (I) (11), that an operator enters an integer number of stroke intervals (I) at an input unit (20, 30) (12) to adjust the working height (H), and that the control device (9) then controls the height adjustment device (8a - 8d) such that the working height (H) is automatically adjusted by the number of stroke intervals (I) (13).