Baler Pickup Flow Feedback for Automatic Tractor Speed Control
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Solution Overview
Problem
Baler plugging occurs when the crop flow exceeds the baler's capacity, leading to inefficient operation and potential crop pushing, as manual speed adjustments by tractor operators are prone to distraction and inaccuracy.
Innovation Solution
A system comprising a flow rate sensor, processing element, and tractor speed controller that monitors the crop flow into the baler's pickup, compares it with the tractor's speed, and adjusts the speed to maintain optimal flow rates, preventing overloading and plugging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the baler travels at high speed to increase productivity, then the throughput increases, but the crop flow exceeds the baler's capacity causing plugging
Solution Approach 1:
The system employs a feedback control mechanism where a sensor continuously monitors crop flow conditions at the pickup and sends signals to the tractor controller. The controller automatically adjusts tractor speed based on this feedback, reducing speed when crop flow increases to prevent plugging and maintaining optimal operating conditions for continuous reliable operation.
2Reliability
If manual speed adjustment is used to prevent plugging, then the baler can operate continuously, but the operator is prone to distraction and inaccuracy
Solution Approach 1:
The system enables self-service operation where the baler and tractor automatically regulate their own speed based on crop flow conditions. The sensor-detector system and controller work autonomously to monitor pickup load and adjust tractor speed without requiring continuous manual intervention, eliminating operator distraction and improving adjustment accuracy.
3Reliability
If the tractor speed is reduced to prevent plugging, then the baler operates reliably, but the productivity decreases
Solution Approach 1:
The system dynamically adjusts tractor speed in real-time based on actual crop flow conditions rather than maintaining a fixed speed. The controller continuously modifies speed settings to match pickup capacity, allowing the system to operate at high speeds when conditions permit and automatically reduce speed only when necessary to prevent plugging, thus optimizing both productivity and reliability.
Data Source
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AI summary
A system for adjusting a tractor (16) speed based on a performance of a pickup (14) of a baler (10) comprises a flow rate sensor (22), a processing element, and a tractor speed controller. The flow rate sensor (22) senses a flow rate of a crop into the pickup (14) and outputs a flow rate signal with a level that varies according to the flow rate of the crop into the pickup (14). The processing element receives the flow rate signal, receives a speed signal regarding a speed of a tractor (16) pulling the baler (10), compares the flow rate from the flow rate signal with the speed from the speed signal to generate a comparison result, and outputs an electronic speed signal with a level that varies according to the comparison result. The tractor speed controller is configured to receive the speed signal and adjust a speed of the tractor (16) according to the level of the speed signal.