Movable Longitudinal Conveyor Module for Compact Potato Harvester
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing potato harvesting machines face challenges in maintaining a compact design for efficient harvesting near field boundaries, leading to crop loss and difficulty in navigating obstacles, due to projecting components that hinder steering and increase the risk of machine damage.
Innovation Solution
A self-propelled potato harvesting machine with a movable longitudinal conveyor module that can adjust laterally relative to the screening belt conveyor, allowing for a compact and expandable design that enables optimal crop lifting and navigation around field edges, using a pivot or push movement to create lateral spacing and adjust the conveying system for improved handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conveying and cleaning component groups are arranged in linear sequence behind each other, then the cleaning and sorting conditions are improved, but the machine length becomes considerable and steering along field contour is difficult
Solution Approach 1:
The machine is divided into separate functional modules: a lifting device with longitudinal conveyor and a screening belt conveyor, which can be independently positioned and adjusted. This segmentation allows the components to be arranged in a compact configuration rather than a long linear sequence, reducing overall machine length while maintaining cleaning and sorting functionality.
Solution Approach 2:
The conveying and cleaning component groups are arranged in a multi-dimensional layout rather than a single linear sequence. The longitudinal conveyor and screening belt conveyor are positioned at different spatial locations and orientations, allowing for compact arrangement that reduces machine length while preserving cleaning effectiveness.
2Reliability
If larger component groups are used to improve cleaning conditions, then cleaning performance is enhanced, but lateral projection increases causing crop loss near field edges
Solution Approach 1:
The lifting device and longitudinal conveyor are designed as a movable module that can be adjusted laterally relative to the screening belt conveyor. This dynamic positioning allows the machine to adapt to field boundary conditions, reducing lateral projection when operating near field edges and minimizing crop loss while maintaining cleaning performance.
Solution Approach 2:
The lateral position and orientation of the conveying and cleaning component groups can be varied to optimize performance for different operating conditions. By changing the spatial parameters of component arrangement, the machine achieves compact configuration that reduces lateral projection while maintaining effective cleaning.
3Device complexity
If the machine is designed with fixed component arrangement, then structural simplicity is maintained, but adaptability to different field conditions and boundaries is reduced
Solution Approach 1:
The machine incorporates movable and adjustable components that allow dynamic reconfiguration for different field conditions. The lifting device can be positioned at various lateral locations relative to the screening conveyor, and the overall machine configuration can be adapted to boundary areas, providing versatility while maintaining relatively simple structure.
Data Source
AI summary
A machine for harvesting root crop has a lifting device that in a position of use on a harvest field lifts several rows of the crop with admixtures from the soil transversely to the travel direction in accordance with a lifting width. From the lifting device the loosened mixture of crop and admixtures is movable opposite to the travel direction by a first longitudinal conveyor and is transferred onto a second screening belt conveyor. Between longitudinal conveyor and screening belt conveyor, a transfer zone is defined with belt overlap. The first longitudinal conveyor in the conveying direction together with the upstream lifting device forms a module that is movable in transverse direction of the machine relative to the second screening belt conveyor. This module, relative to the common transfer zone, can be moved at least sectionwise into a position of lateral spacing relative to the second screening belt conveyor.