Adjustable Screed for Continuous Round Baler Crop Metering
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Solution Overview
Problem
Conventional continuous round balers face challenges in accumulating and feeding crop material efficiently due to differences in crop materials and conditions, particularly in maintaining adequate volume without additional elevating mechanisms and ensuring suitable openings for various crop types and conditions.
Innovation Solution
An accumulating system with an adjustable screed and conveyor that controls crop material flow by raising and lowering the screed to obstruct or permit flow, using rotational movement to accumulate and meter material into the baler, creating an adjustable gap for controlled feeding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If crop material is accumulated in large volume without additional elevating mechanisms, then the baler can maintain forward travel continuously, but it becomes difficult to ensure suitable openings for various crop types and conditions
Solution Approach 1:
The screed is made adjustable in height and angle, allowing dynamic reconfiguration based on crop type and accumulation volume requirements. This enables the same structure to adapt to different crop conditions while maintaining continuous forward movement capability.
Solution Approach 2:
The invention uses the vertical dimension by adjusting screed height to control material flow. By raising or lowering the screed relative to the conveyor belt, the system creates variable openings without adding complex lateral adjustment mechanisms, thus maintaining versatility while ensuring continuous operation.
2Ease of operation
If the screed is lowered to obstruct crop material flow for accumulation, then material can be metered into the baler, but the structure becomes more complex
Solution Approach 1:
The adjustable screed serves multiple functions: it acts as a flow obstruction when lowered, a metering device when at intermediate heights, and can be configured for different crop types. This multi-functionality reduces the need for separate dedicated mechanisms for each function, thereby limiting the increase in overall device complexity.
Solution Approach 2:
The screed's height and angle are made dynamically adjustable during operation, allowing a single movable component to perform multiple functions (obstruction, metering, and adaptation to different crops) that would otherwise require multiple fixed structures.
3Adaptability or versatility
If the screed is made adjustable to accommodate various crop types, then versatility is improved, but the device complexity increases
Solution Approach 1:
The screed incorporates adjustable height and angle capabilities, allowing it to adapt to different crop types and accumulation requirements. This dynamic adjustability provides versatility while using a relatively simple mechanism compared to having multiple fixed structures for different crop conditions.
Data Source
AI summary
A continuous round baler system has a baler and an accumulating system. The accumulating system includes a conveyor configured to convey crop material extending from a pickup mechanism to a bale formation chamber in the baler. A screed is positioned adjacent the end of the conveyor and is configured to be movable by a lifting mechanism between a raised position and a lowered position relative to the first conveyor. In the raised position, a gap is formed between the screed and the first conveyor so that crop material passes into the bale formation chamber. In the lowered position, the gap is closed thereby preventing the crop material from passing to the baler causing the crop material to remain on the conveyor.