Harvesting Device Swivel Control for Crop Transfer

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Solution Overview

Problem

Agricultural harvesting machines face challenges in efficiently transferring crops to hauling vehicles, requiring operators to manually control and monitor the transfer process, which increases workload and risks collisions due to the swiveling transfer device potentially moving out of the operator's field of vision.

Innovation Solution

A system that allows the transfer device to swivel about a setpoint angle, with automatic regulation of the ground speed of the harvesting machine and hauling vehicle to maintain the impact point and prevent collisions, using an evaluation and control device to adjust the ground speed based on the transfer device's deflection, ensuring the transfer device remains in the operator's field of vision and has maximum clearance from the hauling vehicle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the transfer device is manually controlled to utilize all hauling volume, then the loading efficiency is improved, but the operator's workload increases and collision risk increases

Engineering Contradiction:
Improveloading efficiencyVSAvoidoperator workload
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The transfer device is equipped with automatic control capabilities that enable it to perform the transfer operation autonomously. The device can detect its own position, determine the optimal swivel angle, and execute the transfer without continuous manual intervention, thereby reducing operator workload while maintaining loading efficiency.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system incorporates sensors and control units that continuously monitor the transfer device's position and the hauling vehicle's filling status. This feedback information is used to automatically adjust the swivel angle and control the transfer process, enabling the device to self-regulate and avoid collisions while maximizing loading efficiency.

Inventive Principle:
Principle #23Feedback

2Ease of operation

If the transfer device is automatically controlled to reduce operator workload, then the ease of operation is improved, but the risk of collisions and loss of direct monitoring increases

Engineering Contradiction:
Improveoperator workloadVSAvoidcollision risk
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The automatic control system continuously receives feedback from sensors monitoring the transfer device's position, the hauling vehicle's boundaries, and environmental conditions. This real-time feedback enables the system to detect potential collision risks and automatically adjust the transfer device's movement to prevent collisions, maintaining reliability while reducing operator workload.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs preliminary calculations and planning of the transfer device's movement path before execution. By pre-determining the optimal swivel angle and transfer trajectory based on detected positions and boundaries, the system可以避免 collisions before they occur, enhancing reliability during automatic operation.

Inventive Principle:
Principle #10Preliminary action

3Productivity

If the transfer device swivels to maximize hauling volume utilization, then the productivity is improved, but the transfer device may move out of the operator's field of vision

Engineering Contradiction:
Improvehauling volume utilizationVSAvoidmonitoring difficulty
Core Design Contradiction:
ProductivityVSDifficulty of detecting and measuring

Solution Approach 1:

The transfer device incorporates autonomous positioning and control capabilities that enable it to independently determine the optimal swivel angle for maximizing hauling volume utilization. The device can perform this optimization without requiring the operator to visually monitor and manually adjust the position, thereby maintaining productivity while eliminating the monitoring difficulty.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system replaces the operator's visual monitoring and manual control with automated sensors, processors, and actuators. These electronic and mechanical systems can detect the hauling vehicle's boundaries and calculate optimal transfer angles faster and more accurately than human operators, maximizing volume utilization while eliminating the need for direct visual monitoring.

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

4Manufacturing precision

If the ground speed is changed to return the transfer device to setpoint angle, then the transfer device control precision is improved, but the harvesting productivity may be reduced

Engineering Contradiction:
Improvetransfer device control precisionVSAvoidharvesting productivity
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The system dynamically adjusts the ground speed of the harvesting machine based on the transfer device's actual position and the required setpoint angle. By making real-time, adaptive speed adjustments rather than fixed corrections, the system achieves precise transfer device positioning while minimizing the impact on overall harvesting productivity through optimized timing and magnitude of speed changes.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS10034427B2Harvesting device
Publication Date: 2018.07.31 CLAAS SELBSTFAHRENDE ERNTEMASCHINEN GMBH
  • US10034427B2 patent drawing
  • US10034427B2 patent drawing
  • US10034427B2 patent drawing

AI summary

A harvesting system or device formed with an agricultural harvesting machine having a crop transfer device that that swivels about a swivel angle (φ) for transferring crop and allows for setting a setpoint swivel angle (φsoll) for discharging the crop, and a hauling vehicle that receives the crop. The crop that is discharged from the agricultural harvesting machine impacts the hauling vehicle at an adjustable impact point. If the deflection of the transfer device deviates from the setpoint swivel angle (φsoll), a return of the transfer device to the setpoint swivel angle (φsoll) is regulated by changing the ground speed (VE) of the agricultural harvesting machine, the ground speed (VT) of the hauling vehicle or bother while maintaining a position of the impact point substantially unchanged.