Harvester Crop Distribution Guide Elements Slope Compensation
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Solution Overview
Problem
Existing combine harvester distribution devices struggle to maintain a constant distribution width on sloping terrain, leading to uneven crop deposition and reduced throwing paths due to varying distances from the field floor.
Innovation Solution
Incorporating adjustable guide elements downstream of the distribution device that can pivot in the vertical direction, allowing for slope-dependent adjustment of the throwing path, and utilizing a slope compensation system with inclination sensors and actuators to maintain a horizontal machine housing position, ensuring consistent distribution width regardless of slope.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the distribution device is aligned with the field inclination on slopes, then the throwing path is extended uphill, but the distribution width becomes uneven and crop is deposited inconsistently across the field
Solution Approach 1:
The distribution device incorporates adjustable guide plates that can dynamically change their orientation angle relative to the horizontal plane. This allows the device to adapt its configuration based on slope conditions, maintaining consistent distribution width while accommodating varying throwing path requirements on inclined terrain
Solution Approach 2:
The system changes the orientation parameter of the guide plates from a fixed alignment with the slope to an adjustable angle relative to the horizontal. This parameter change enables the guide plates to deflect crop material consistently across the distribution width regardless of slope inclination, resolving the contradiction between throwing path extension and distribution uniformity
2Stability of the object's composition
If the machine housing is aligned vertically with slope compensation, then the distribution device maintains a constant position, but the throwing path varies due to changing distance from the field floor on slopes
Solution Approach 1:
While the machine housing remains stable through slope compensation, the guide plates introduce a dynamic adjustment mechanism that compensates for the varying throwing path caused by slope-induced distance changes. The guide plates can be angled to extend the throwing path uphill or reduce it downhill, maintaining consistent crop distribution despite the fixed machine position
Solution Approach 2:
The system changes the orientation parameter of the guide plates to compensate for the fixed distance parameter of the distribution device on slopes. By adjusting the guide plate angle, the effective throwing path is modified to account for the varying vertical distance from the distribution device to the field floor on inclined terrain
3Area of stationary object
If the distribution width is adjusted on slopes, then crop distribution covers the desired area, but increased crop hits the field soil on the slope side before reaching the target width
Solution Approach 1:
The adjustable guide plates dynamically control the deflection angle of crop material, ensuring that the crop is directed precisely toward the target distribution area. This dynamic control prevents premature crop contact with the slope-side field soil by optimizing the throwing trajectory according to the slope angle and desired distribution width
Solution Approach 2:
The system changes the orientation parameter of the guide plates to optimize the crop throwing trajectory. By adjusting the guide plate angle, the crop is deflected at an optimal angle that extends the throwing path uphill or redirects it downhill, ensuring the crop reaches the intended distribution area without premature contact with the slope-side soil
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution ensures a consistent distribution width and increased throwing distance on both uphill and downhill slopes, minimizing crop loss and maintaining optimal distribution efficiency even on uneven terrain.
Implementation Method 1
with which the direction of movement of the crop emerging from the distribution device can be changed at least in the vertical direction
Implementation Method 2
the inclination sensor transverse to the direction of travel of the combine harvester in order to throw the crop as far uphill as the harvest is driving on the slope
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The device has guidance units (33, 34) to change movement direction of a harvested crop (30) discharged from a combine harvester (1) in a vertical direction. The guidance units are adjusted depending on an inclination of field soil (32) to cause a larger throwing range by adjusting throwing parabola for the harvested crop. The guidance units exhibit a curvature pointing in the vertical direction, in a crop delivery direction, where the curvature is formed in outer regions of the guidance units. The curvature increases in a direction of the outer regions of the guidance units.