Round Baler Discharge Flap Control on Uneven Terrain
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Solution Overview
Problem
Agricultural round balers face challenges in safely unloading bales on uneven and/or hilly terrain, as the bales tend to roll or fall, necessitating time-consuming and labor-intensive relocation to flat areas, and existing designs do not facilitate safe unloading processes, increasing the risk of accidents.
Innovation Solution
The ejection flap of the round baler is adjustable during unloading, allowing it to transition from an unloading position for bale discharge to a holding position to secure the bale, and then a release position, using an actuating device like a servomotor, with the ejection opening dimensions adjusted to prevent unintentional rolling and facilitate safe storage on uneven terrain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the ejection flap is opened to unload the round bale on uneven and/or hilly terrain, then the unloading process can be performed at the current work location, but the round bale may continue to roll unintentionally causing safety accidents
Solution Approach 1:
The ejection flap is designed with adjustable positioning capabilities, allowing it to transition between a closed position for baling, an open position for controlled unloading, and intermediate positions for securing the bale. This dynamic adjustability enables safe unloading on uneven terrain by allowing the operator to control the flap position precisely during the unloading process.
Solution Approach 2:
The system changes the geometric parameters of the ejection opening by adjusting the ejection flap angle and position. By varying the opening dimension and orientation, the system can control bale movement during unloading while maintaining safety on uneven and hilly terrain, preventing unintentional rolling.
2Reliability
If the operator interrupts crop collection to relocate to flat terrain for unloading, then the round bale can be safely unloaded, but significant time is lost and productivity decreases
Solution Approach 1:
The round baler is equipped with an integrated adjustable ejection flap system that enables it to perform safe unloading operations independently on uneven terrain without requiring operator intervention to relocate. The system serves itself by providing the necessary geometric adjustments to ensure safe unloading at the current work location, maintaining continuous crop collection and high productivity.
3Ease of operation
If the ejection opening dimension is enlarged to facilitate bale ejection, then the unloading process is simplified, but the round bale may roll unintentionally on uneven terrain
Solution Approach 1:
The ejection flap geometry is made dynamically adjustable, allowing the system to optimize the ejection opening dimension for each specific unloading situation. The flap can be positioned to provide just enough opening for smooth bale ejection while maintaining control to prevent unintentional rolling on uneven terrain.
Solution Approach 2:
The system dynamically changes the geometric parameters of the ejection opening by adjusting the ejection flap angle and position. This allows optimization of the opening dimension to facilitate bale ejection while controlling bale movement to prevent rolling on uneven and hilly terrain.
Data Source
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AI summary
An agricultural round baler (10) is disclosed. The agricultural round baler (10) comprises a housing (12) which has a housing part (14) and a discharge flap (26) pivotally mounted on this housing part (14) about a bearing axis, and driven pressing means (28, 32) distributed on the housing part (14) and the discharge flap (26). The pressing means (28, 32) circumferentially delimit a bale pressing chamber (24) and through this, a rotation-generating or rotation-maintaining engagement effect can be generated on a round bale (30) located in the bale pressing chamber (24). The discharge flap (26) can be pivoted by means of an actuating device such that when the discharge flap (26) is opened, a discharge opening (36) can be formed between the housing part (14) and the discharge flap (26) and a dimension (40) of the discharge opening (36) can be changed.Furthermore, the discharge flap (26) is adjustable during the unloading process of the finished pressed round bale (30) by means of the adjusting device such that the open discharge flap (26) can be moved from an unloading position, in which the finished pressed round bale (30) is unloaded through the discharge opening (36), to a holding position, in which the unloaded round bale (30) is held by means of the open discharge flap (26), and from the holding position to a release position, in which the held round bale (30) is released by the open discharge flap (26). The invention further relates to a method for operating an agricultural round baler (10).