Harvester Header Torque Damper Between Shaft and Gearbox
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Solution Overview
Problem
Agricultural harvester headers experience torque spikes during startup and harvesting operations, which can damage driveline components, limiting compatibility with various combines.
Innovation Solution
A drive system incorporating a gearbox and a torque damper connected between the drive shaft and gearbox to reduce torque spikes, protecting driveline components and enhancing compatibility with different combines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the header is directly connected to the combine driveline without a torque damper, then the driveline components are exposed to torque spikes during startup and harvesting operations, but the header can operate with simpler and fewer components
Solution Approach 1:
A torque damper is introduced as an intermediary component between the combine driveline and the header gearbox. This torque damper absorbs and dampens torque spikes during startup and harvesting operations, protecting the driveline components (drive shaft, jack shaft, gearbox) from damage while maintaining system functionality. The torque damper acts as a buffer that mediates the harmful torque fluctuations without requiring complete redesign of the entire driveline system.
2Adaptability or versatility
If the header uses a split drive system with separate drivelines for row units and chopping units, then each component can be independently driven, but the system becomes more complex with multiple gearboxes and drivelines
Solution Approach 1:
The driveline system is segmented into separate independent drivelines for different functions: one driveline powers the row units (gathering chains and stalk rolls) through a row-unit gearbox, and another driveline powers the chopping units through a chopper gearbox. Both drivelines are independently driven by the combine PTO. This segmentation allows each component to operate independently with optimized performance while maintaining overall system versatility.
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
The torque damper effectively diminishes torque spikes, protecting driveline components and ensuring compatibility with various combines by reducing the magnitude of torque transmitted during startup and harvesting operations.
Implementation Method 1
The torque damper reduces a magnitude of a torque spike, caused by the driven components of the header, to protect the driveline components of the header and/or combine during an initial startup and/or harvesting operation of the header
Data Source
AI summary
A drive system of a header for an agricultural vehicle. The header includes a plurality of driven devices. The drive system includes a shaft configured for conveying motive power from the agricultural vehicle to the header, a gearbox configured for being located on the header and for transferring motive power to the plurality of driven devices, and a torque damper. The torque damper is operably connected in between the shaft and the gearbox. The torque damper is configured for reducing a magnitude of a torque spike.