Crop Cart Unloading Conveyor Dynamics and Hydraulic Reduction
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Solution Overview
Problem
Conventional crop carts face issues such as crop damage due to steep unloading conveyor angles, potential collisions with harvesters, and hydraulic fluid requirements that older tractors cannot handle, necessitating an improved unloading system.
Innovation Solution
A crop cart unloading system featuring a pivotally connected hopper with a movable floor conveyor and an unloading conveyor that can be adjusted to a horizontal position, reducing hydraulic fluid usage and preventing collisions by allowing the unloading conveyor to extend and retract without obstructing the harvester.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the unloading conveyor extends upwardly at a steep angle, then the crop can be lifted upwardly from the crop shuttle, but the crop can become damaged during unloading
Solution Approach 1:
The patent changes the angle parameter of the unloading conveyor from a steep upward angle to a more gradual angle or horizontal position. This parameter modification allows the conveyor to still perform the unloading function while reducing the harmful impact on crops during the conveying process
2Productivity
If the front unloading conveyor extends upwardly above the upper edge of the container, then the crop can be discharged, but it creates potential problems of hitting the harvester during loading
Solution Approach 1:
The patent makes the unloading conveyor dynamic by allowing it to be repositioned or adjusted. The conveyor can extend upwardly when needed for unloading but can be retracted or positioned lower when the harvester is approaching, thus maintaining both unloading efficiency and collision avoidance through dynamic adjustment
3Power
If conventional crop carts use a significant volume of pressurized hydraulic fluid, then the unloading function can be achieved, but older tractors are unable to handle the hydraulic requirements
Solution Approach 1:
The patent replaces the hydraulic mechanical system with an alternative mechanism such as a mechanical advantage system, linkage system, or electric motor system. This substitution maintains the necessary unloading power while reducing or eliminating the need for high-volume pressurized hydraulic fluid, thereby improving compatibility with older tractors that lack robust hydraulic systems
Data Source
AI summary
A crop cart unloading system for efficiently unloading a harvested crop from a crop cart. The crop cart unloading system generally includes a hopper having a floor conveyor movably positioned with respect to a lower floor, a plurality of sidewalls extending upwardly from the lower floor, an unloading door movably connected to an unloading end of the hopper, and an upper opening defined by an upper edge of the plurality of sidewalls for receiving a field crop. The hopper is pivotally connected to a support frame having a plurality of wheels. A first actuator is connected between the support frame and the hopper to lift the unloading end of the hopper. An unloading conveyor is attached to the unloading end of the hopper to receive and discharge a field crop from the hopper.