Agricultural Trailer Discharge Device Torsion Feedback Control

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Solution Overview

Problem

Existing agricultural trailers, such as manure spreaders, require manual adjustment of the sliding wall to ensure uniform load distribution, which is inefficient and prone to overloading, leading to suboptimal discharge.

Innovation Solution

An automatic regulation system using an electronic torsion measuring device and speed measuring device to control the feed of the discharge device, ensuring optimal load distribution by adjusting the sliding wall based on detected torsion and speed, thereby maintaining a consistent load supply to the distribution rollers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the sliding wall advances faster to increase discharge quantity, then the load supply to distribution device is improved, but the load is pressed excessively causing torsion and overloading

Engineering Contradiction:
Improvedischarge quantityVSAvoidoverloading prevention
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system uses a torsion measuring device to detect the torsion state of the drive shaft in real-time and feeds this information back to the control device. The control device automatically adjusts the sliding wall position based on the detected torsion, creating a closed-loop feedback system that prevents overloading while maintaining optimal discharge quantity.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system enables self-regulation by automatically adjusting the discharge device feed based on torsion measurements. The control device autonomously modifies the sliding wall position without manual intervention, allowing the system to self-correct torsion issues and maintain optimal operating conditions.

Inventive Principle:
Principle #25Self-service

2Manufacturing precision

If manual adjustment of sliding wall is used to optimize load distribution, then discharge uniformity is improved, but operation efficiency deteriorates due to continuous manual intervention

Engineering Contradiction:
Improveload distribution uniformityVSAvoidmanual adjustment frequency
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The system replaces manual adjustment operations with automatic control. The control device continuously monitors torsion and autonomously adjusts the sliding wall position to maintain optimal load distribution, eliminating the need for continuous manual intervention while preserving discharge uniformity.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system replaces manual mechanical adjustment with an automated control system that uses electronic sensors and actuators. The control device substitutes human operators by automatically regulating the sliding wall position based on real-time torsion feedback, improving operational efficiency while maintaining precision.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Quantity of substance

If PTO shaft speed is changed to adjust torque, then load supply is improved, but speed uniformity deteriorates requiring additional speed measurement and control

Engineering Contradiction:
Improveload supply quantityVSAvoidPTO shaft speed uniformity
Core Design Contradiction:
Quantity of substanceVSSpeed

Solution Approach 1:

The system incorporates a speed measuring device that provides feedback on PTO shaft speed to the control device. This allows the control device to compensate for speed variations by adjusting the sliding wall position, maintaining optimal load supply even when speed changes occur.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system compensates for PTO shaft speed variations by dynamically adjusting the sliding wall position parameter. When speed changes cause torque variations, the control device modifies the discharge device feed rate to maintain consistent load supply, effectively decoupling load supply from speed uniformity requirements.

Inventive Principle:
Principle #35Parameter changes

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

This system ensures a uniform and optimal distribution of the load over a wide area, reducing the need for manual adjustments and preventing overloading, resulting in a more efficient and consistent discharge process.

Implementation Method 1

an electronic torsion measuring device for detecting the torsion of the drive element

Methodology Applied
Scientific EffectTorsion: Torque

Implementation Method 2

a speed measuring device for determining the speed of the drive element

Methodology Applied
Scientific EffectRotational speed measurement:

Implementation Method 3

A hydraulic valve is preferably used to regulate the feed of the discharge device, the oil flow of which is regulated via the control device

Methodology Applied
Scientific EffectHydraulic flow control: Hydraulic Press

Data Source

PatentEP2179637B1Vehicle with discharging device
Publication Date: 2011.11.30 FLIEGL JOSEF
  • EP2179637B1 patent drawingFigure 1
  • EP2179637B1 patent drawing

AI summary

The vehicle has a discharge device (5) arranged in a storage area (3) for conveying storage goods (4) to a discharge opening (6). A hydraulic valve (12) regulates the feed rate of the discharge device. A distribution device (7) for laminar arrangement of the storage goods is provided in the region of the discharge opening. The distribution device is driven by a drive element (8). An electronic torsions measuring device (14) e.g. magnetic sensor, detects the torsion of the drive element. A control device regulates the feed rate of the discharge device depending on the torsion of the element.