Baler Tailgate Closure Timing via Bale Position Sensor
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Solution Overview
Problem
Operators face challenges in determining when to close the tailgate of a baler after ejecting a bale, leading to prolonged baling operations and increased fuel consumption due to unnecessary idling, as they wait for the bale to clear the ramp before safely rotating the tailgate to the closed position.
Innovation Solution
A bale position sensor is integrated into the system to detect the bale's cleared position on the ramp, allowing the tailgate to begin closing sooner without risking contact, facilitated by a controller that communicates with the sensor and actuator assembly to automate the tailgate's rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the operator waits for the bale to completely clear the ramp before closing the tailgate, then the safety and reliability of the operation is improved, but the baling operation time increases and productivity decreases
Solution Approach 1:
The patent implements a feedback mechanism using a sensor that detects the bale's position on the ramp and provides real-time information to the control system. This feedback allows the tailgate to close automatically when the bale reaches a safe distance, eliminating the need for operator estimation and ensuring both safety and efficiency.
Solution Approach 2:
The patent replaces the manual mechanical operation of the tailgate with an automated control system that uses sensors and actuators. This substitution eliminates human error in timing and ensures the tailgate closes at the optimal moment based on actual bale position detection.
2Device complexity
If the operator manually monitors and times the tailgate closing, then the system complexity is reduced, but the loss of time increases due to uncertain bale clearance timing
Solution Approach 1:
The system performs self-service by automatically detecting the bale's position and triggering the tailgate closure without requiring operator intervention. The sensor-actuator system independently manages the timing sequence, eliminating idle time while adding minimal complexity through automated components.
3Productivity
If the tailgate closes earlier while the bale is still on the ramp, then the productivity and fuel efficiency are improved, but the risk of contacting the bale increases
Solution Approach 1:
The sensor provides continuous feedback on the bale's position, allowing the control system to determine the exact moment when the bale reaches a safe distance from the tailgate. This feedback mechanism enables early closure while maintaining safety through real-time position monitoring.
Solution Approach 2:
The system performs preliminary detection of the bale's position before initiating tailgate closure. By detecting the bale's location in advance and calculating the safe closure timing, the system prepares and executes the tailgate movement at the optimal moment, preventing contact while maximizing productivity.
Data Source
AI summary
A system includes a baling chamber designed to form a round bale and a tailgate rotatably coupled to the baling chamber. The tailgate rotates between a closed position that facilitates formation of the round bale and an open position that facilitates ejection of the round bale from the baling chamber. The system includes a ramp coupled to the baling chamber. The ramp is designed to receive the round bale upon ejection from the baling chamber and to direct the round bale away from the baling chamber to a cleared position on the ramp that enables the tailgate to rotate from the open position to the closed position without contacting the round bale. The system also includes a sensor coupled to a distal end of the ramp. The sensor is designed to detect presence of the round bale in the cleared position.