Automatic Latch Device for Combine Feeder and Header Coupling
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Solution Overview
Problem
Manual intervention is required for coupling and uncoupling combine feeder interfaces and headers, which is time-consuming and inefficient.
Innovation Solution
An automatic latch device with a gear box and telescoping jack shaft assembly, actuated by hydraulic or electronic means, allows for remote engagement and disengagement of the feeder's PTO shaft with the header's drive shafts, eliminating the need for manual operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual intervention is used for coupling and uncoupling combine feeder interfaces and headers, then the operator can control the process, but the operation is time-consuming and inefficient
Solution Approach 1:
The system uses the combine's own hydraulic system to power the coupling mechanism. The hydraulic cylinder automatically extends to move the feeder interface into engagement with the header, and retracts to disengage it, eliminating the need for manual labor while utilizing existing system resources
Solution Approach 2:
The patent replaces manual mechanical coupling operations with an automated hydraulic mechanism. The hydraulic cylinder substitutes for manual pushing and positioning actions, providing powered automation that significantly reduces operation time while maintaining control
2Reliability
If manual coupling operations are performed, then the operator can align components, but misalignment and premature engagement/disengagement may occur
Solution Approach 1:
The hydraulic cylinder pre-positions the feeder interface by automatically moving it into the correct alignment with the header before engagement occurs. This preliminary powered positioning ensures proper alignment is achieved consistently, eliminating the variability and potential errors of manual alignment attempts
Solution Approach 2:
The hydraulic actuation system replaces manual alignment operations with controlled powered movement. The cylinder provides precise, repeatable positioning that ensures reliable engagement while reducing the skill and attention required for proper alignment
3Productivity
If automatic coupling is implemented using hydraulic actuators, then coupling speed increases, but the device complexity increases
Solution Approach 1:
The hydraulic cylinder serves multiple functions: it powers the coupling mechanism, positions the feeder interface, and enables disengagement. By using an existing component from the combine's hydraulic system, the patent avoids adding dedicated motors or complex control systems, thereby limiting the increase in device complexity
Solution Approach 2:
The hydraulic cylinder acts as an intermediary between the combine's existing hydraulic power source and the coupling mechanism. This intermediary component translates hydraulic pressure into the mechanical motion needed for coupling, providing automation without requiring direct integration of complex control systems
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
Enables the combine operator to automatically connect and disconnect the feeder and header from the cab, improving efficiency and reducing the risk of misalignment or premature engagement/disengagement.
Implementation Method 1
An automatic latch device with a gear box and telescoping jack shaft assembly, actuated by hydraulic or electronic means, allows for remote engagement and disengagement of the feeder's PTO shaft with the header's drive shafts
Data Source
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AI summary
An automatic latch assembly (24) for coupling a combine feeder (12) and combine header (22), said latch comprising a slideable gearbox (40) and a telescopic jack shaft assembly (34) extending therefrom, a hydraulic actuator assembly (50), and spring-loaded couplers (86).