Forage Harvester Main Beam Segmentation for Track and Wheel Configurations
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Solution Overview
Problem
Existing forage harvesters face challenges in easily switching between caterpillar tracks and single wheels due to the complexity and cost of conversion, which is often not considered urgent enough to justify the necessary workload.
Innovation Solution
Designing a series of forage harvesters with either long or short main beams, where the long beams have an additional middle section to accommodate crawler tracks, allowing forage harvesters to be permanently configured as either long or short, with identical front and rear sections, enabling easy differentiation between 'crawler choppers' and 'wheel choppers' without conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If forage harvesters are designed with convertible main beams to switch between crawler tracks and single wheels, then adaptability is improved, but device complexity and conversion effort increase
Solution Approach 1:
The main beam is divided into three distinct segments: front section, central section, and rear section. Each segment can be independently selected or combined to create different beam configurations (long beam with central section for crawler tracks, short beam without central section for single wheels), enabling adaptability while maintaining manufacturing simplicity through modular assembly
Solution Approach 2:
The main beam is designed with universal front and rear sections that can be used across different forage harvester configurations, while only the central section varies. This allows a single beam design to serve multiple functions - accommodating both crawler tracks and single wheels - thereby improving adaptability without proportionally increasing overall complexity
2Ease of manufacture
If forage harvesters are designed with permanently different main beam lengths, then manufacturing simplicity is improved, but adaptability decreases
Solution Approach 1:
The main beam is segmented into standardized front, central, and rear sections that can be pre-manufactured using identical processes. The long beam (with central section) and short beam (without central section) are produced through the same manufacturing steps, maintaining manufacturing simplicity while enabling production of different configurations to meet diverse operational requirements
Solution Approach 2:
The central section of the long beam is designed with specific local characteristics (additional length) only where needed to accommodate crawler tracks, while the front and rear sections maintain identical quality and dimensions in both long and short beam versions. This localized differentiation allows adaptability without complicating the overall manufacturing process
3Force
If crawler tracks are fitted to forage harvesters, then traction performance is improved, but space requirements increase
Solution Approach 1:
The forage harvester is designed with dynamic length capability through the selectable main beam configurations. The same basic platform can be adjusted in length by choosing between long beams (with central section) for crawler track applications requiring greater axial length for improved traction, or short beams (without central section) for single wheel applications with reduced space requirements
Data Source
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AI summary
The present application relates to a series of forage harvesters (1, 1') comprising a plurality of forage harvesters (1, 1') for chopping crops (2) located in a working field, each of the forage harvesters (1, 1') comprising at least one working element in the form of a chopping element (4) for chopping the cut crops (2), at least one drive device for driving at least one propulsion element and the working elements, and at least one continuous main support for receiving the working elements and the drive device, wherein the working elements are connected to the main support in a force-transmitting manner at least indirectly in a front section (8) and the drive device is connected to the main support in a force-transmitting manner at least indirectly in a rear section (9).In order to produce a series of forage harvesters, some of which can be equipped with normal single wheels in the form of round wheels and others with crawler tracks, it is proposed according to the invention that a main beam of a forage harvester (1) of the series, designed in the form of a longitudinal beam (10), has a length (12) which exceeds a length (13) of a main beam of another forage harvester (1') of the series designed in the form of a short beam (11), wherein both the longitudinal beam (10) and the short beam (11) have front sections (8) and rear sections (9) of at least substantially identical design, and wherein the longitudinal beam (10) has an additional central section (14) compared to the short beam (11).