Stepped Unload Spout Structure for High-Capacity Grain Flow

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Solution Overview

Problem

The challenge in modern agricultural vehicles is maintaining the rigidity, stiffness, and weight of unload spouts to ensure optimal grain flow characteristics and capacity, particularly as clean grain unload systems have increased in capacity.

Innovation Solution

The unload spout features a hollow body with interior steps and flanges to enhance structural integrity, comprising symmetrical halves with fastened flanges and interior steps to improve stiffness and maintain shape.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the unload spout capacity is increased to handle higher grain flow, then the spout size and capacity improve, but the structural rigidity and stiffness deteriorate

Engineering Contradiction:

Improvegrain flow capacityVSAvoidstructural rigidity

Core Design Contradiction:

ProductivityVSStrength

Solution Approach 1:

The interior surface of the unload spout is segmented into multiple stepped levels rather than being smooth and continuous. This segmentation creates multiple structural planes that intersect and support each other, distributing structural loads and maintaining rigidity despite the increased spout size required for higher capacity grain flow.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The stepped interior structure adds a vertical dimension to the spout's internal geometry. By creating multiple elevation levels within the spout interior, the design adds structural complexity in the vertical dimension that enhances overall structural integrity without requiring increases in the spout's external dimensions, thus maintaining rigidity while preserving capacity.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Productivity

If the unload spout size is increased to improve grain flow capacity, then the capacity improves, but the weight increases

Engineering Contradiction:

Improvegrain flow capacityVSAvoidspout weight

Core Design Contradiction:

ProductivityVSWeight of moving object

Solution Approach 1:

The unload spout utilizes a thin-walled hollow structural design that relies on the stepped interior features and flange configurations to provide structural strength rather than depending on thick walls. This allows the spout to maintain high grain flow capacity with minimized material usage and weight, as the strategic placement of stepped interior elements provides structural reinforcement without adding significant mass.

Inventive Principle:

Principle #30Flexible shells and thin films

3Strength

If the spout structure is made more complex to enhance rigidity, then the structural integrity improves, but the manufacturing complexity increases

Engineering Contradiction:

Improvestructural integrityVSAvoidstructural complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The stepped interior features, flanges, and structural reinforcement elements are merged into a single integrated spout component rather than being separate attached parts. This integration achieves enhanced structural integrity through the combined geometric features while simplifying manufacturing and assembly, as the complex stepped structure is formed as one piece during the spout fabrication process.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS12477994B2Unload spout for agricultural vehicle

Publication Date: 2025.11.25 BLUE LEAF I P INC

AI summary

An unload spout for an agricultural vehicle includes a hollow body having an inlet end for receiving crop material, an outlet end through which the crop material is distributed, and a side wall extending between the inlet end and the outlet end. A plurality of steps are formed on an interior facing side of the side wall for enhancing the structural integrity of the unload spout.