Unloading Auger Passive Locking Mechanism for Harvester
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Solution Overview
Problem
Agricultural combines face challenges in securely locking unloading augers during motion to prevent horizontal and vertical movement, relying on active manual securing methods that can be forgotten, leading to potential structural damage and grain loss.
Innovation Solution
A passive locking mechanism using a latch assembly on the unloading auger that automatically engages with an actuated hook assembly on the chassis, securing the auger in both horizontal and vertical directions when stored, eliminating the need for active operator participation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual securing methods are used, then the unloading auger can be secured, but operator error and forgetfulness lead to unreliable securing
Solution Approach 1:
The unloading auger securing system automatically engages the latch assembly with the support structure without requiring operator intervention. The system serves itself by detecting when the auger is in the stored position and automatically locking into place, eliminating reliance on human memory and manual action.
Solution Approach 2:
The patent replaces the manual mechanical securing system with an automated mechanism that uses sensors, actuators, and control logic to detect auger position and engage the latch automatically, substituting human operation with an integrated mechanical-electrical control system.
2Strength
If active manual securing is used, then the auger can be locked, but structural damage and grain loss can still occur due to operator error
Solution Approach 1:
The system incorporates sensors that detect the position of the unloading auger and provide feedback to the control system. This feedback mechanism ensures the latch assembly engages only when the auger is properly positioned, preventing premature or incorrect securing that could cause structural damage or grain loss.
Solution Approach 2:
The automatic securing system eliminates human error by performing the securing action itself based on sensor input, ensuring consistent and reliable engagement that protects structural integrity and prevents grain loss regardless of operator attention or competence.
3Extent of automation
If a passive locking mechanism is implemented, then automatic securing is achieved, but device complexity increases
Solution Approach 1:
The securing system is divided into distinct functional modules: position sensors to detect auger location, a control system to process sensor signals, and a latch assembly to perform the physical locking. This segmentation allows each component to be optimized independently and simplifies the overall design by distributing complexity across separate elements.
Solution Approach 2:
The latch assembly serves multiple functions: it detects auger position through integrated sensors, processes the position information, and executes the locking action. By combining these functions into a single multi-functional component, the patent reduces overall system complexity while achieving automatic securing.
Data Source
AI summary
An unloading auger locking mechanism for use by an agricultural harvester, allowing the secure retainment of an unloading auger while it is in its stored position, accomplished by the passive locking between a latch assembly mounted on the unloading auger and an actuated hook assembly on the chassis, further allowing the unlocking of the mechanism by remote actuation. Locking and unlocking of the unloading auger can therefore be accomplished without the operator leaving the cab.