Axial Separator Guide Element Adjustment
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Solution Overview
Problem
Existing axial separators for combine harvesters have a rigid guide element that inadequately influences crop flow, leading to uneven distribution of crop residues due to crop properties like moisture, resulting in one-sided feeding into further processing devices.
Innovation Solution
A position-changeable guide element on the axial separator's housing allows for flexible adjustment in the circumferential direction, enabling targeted influence on the ejection point and outlet width, which can be manually or automatically controlled based on crop and working parameters using sensors and actuators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid guide element is used to influence crop flow, then the structure is simple and reliable, but the distribution of crop residues becomes uneven and one-sided feeding occurs
Solution Approach 1:
The guide element is made movable relative to the housing, transitioning from a rigid fixed structure to a dynamic adjustable one. This allows the guide element to adapt its position based on crop properties (moisture, type) to prevent one-sided feeding while maintaining structural simplicity through a single movable component rather than multiple rigid elements
2Device complexity
If the guide element position is fixed, then the device complexity is low, but the outlet width cannot be adapted to various harvesting parameters and crop types
Solution Approach 1:
The guide element is designed with movable positioning capability, allowing dynamic adjustment of the outlet width in the circumferential direction. This single dynamic element provides adaptability to various harvesting parameters and crop types without requiring multiple fixed elements or complex mechanisms, thus maintaining relatively low device complexity while achieving versatility
3Ease of manufacture
If a rigid guide element is used, then the manufacturing cost is low, but the ability to target influence on ejection point is insufficient
Solution Approach 1:
The guide element is designed to be movable rather than rigidly fixed, enabling precise control of the ejection point through position adjustment. This dynamic design allows targeted influence on the ejection point for different crop conditions while remaining relatively simple to manufacture compared to complex rigid structures with multiple adjustment mechanisms
Solution Approach 2:
The position parameter of the guide element can be changed to control the ejection point. By adjusting the guide element's position in the circumferential direction, precise control over the ejection point is achieved without requiring complex manufacturing processes, thus improving precision while maintaining ease of manufacture
Data Source
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AI summary
The invention relates to an axial separator (2) for a combine harvester (1), with a separator rotor (19) rotatably mounted in a housing (18), which, viewed in the conveying direction (FR), comprises a receiving area for harvested crop, a separation area and a discharge area (25) for harvested crop residue, a wall (31) sectionally delimiting the discharge area (25) in the circumferential direction of the separator rotor (19) and at least one guiding element (28) arranged in the discharge area (25), which influences the harvested crop residue stream exiting in the discharge area (25) and being supplied to a further processing device (8) arranged below the discharge area (25), wherein the at least one guiding element (28) is arranged on the housing (18) in a position changeable manner in the circumferential direction.