Self-Supporting Longitudinal Hopper for Sowing Machines
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Solution Overview
Problem
Current sowing machines with transversely mounted hoppers are unproductive and lack precision, while those with longitudinally mounted hoppers are heavy, complex, and costly due to low torsional rigidity and inefficient space use.
Innovation Solution
A self-supporting, torsionally rigid agricultural machine design featuring a longitudinally mounted hopper made of solidly connected flat segments with internal walls, serving as the primary load-bearing element, and equipped with a central metering device for precise seed and fertilizer application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a transverse frame structure is used with transverse hopper mounting, then the machine can be constructed with simpler frame arrangement, but the machine becomes unstable and cannot support higher weight loads of modern sowing machines
Solution Approach 1:
The hopper is divided into multiple longitudinal segments that are connected to form a rigid structure. This segmentation allows the hopper to achieve high structural strength and weight load capacity while maintaining a relatively simple construction approach, resolving the contradiction between ease of manufacture and strength.
2Device complexity
If a transverse frame structure is used, then the frame arrangement can be simpler, but the machine exhibits marked instability and reduced torsional strength
Solution Approach 1:
The design transitions from a transverse frame arrangement to a longitudinal hopper structure that extends in the direction of travel. This dimensional change provides inherent torsional stability along the length of the machine while keeping the frame arrangement relatively simple, thus resolving the contradiction between device complexity and stability.
3Ease of manufacture
If a separate supporting frame with transverse hopper mounting is used, then the machine can be constructed with simpler components, but the main frame takes up more space and impairs space utilization
Solution Approach 1:
The hopper is integrated directly into the main frame structure as a longitudinal component, merging the storage function with the structural frame. This eliminates the need for separate supporting frames and maximizes space utilization while maintaining component simplicity, resolving the contradiction between ease of manufacture and volume efficiency.
4Ease of manufacture
If conventional separate frame and hopper design is used, then production can be simpler, but the machine exhibits lower torsional strength and reduced precision
Solution Approach 1:
The longitudinal hopper is constructed from multiple segments that are precisely connected, providing high torsional strength and structural rigidity. This segmented design maintains production simplicity while achieving the precision required for modern sowing operations, resolving the contradiction between ease of manufacture and manufacturing precision.
Data Source
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AI summary
A agricultural machine for sowing or the application of fertilizer with at least one longitudinal hopper (1) and at least one central metering device, for which the longitudinal hopper (1) is an essential structural part of the whole machine and is arranged to be self-supporting, wherein at its front end is arranged a device (7) for connecting to a towing means and its back end is connected with at least one means (2) of support and at least one dispersion device (3).