Axial Separator Guide Element Inclined Edge Design
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Solution Overview
Problem
Existing axial separators do not effectively distribute residual power currents to choppers, leading to uneven loading and distribution of harvest materials during the harvesting process.
Innovation Solution
The axial separator features a leader element with a sloping or tiered edge design and a movable actuator system, allowing the leader element to be positioned between a storage and distribution position, ensuring continuous cyclical movement along the housing's curvature, which enhances the deflection and distribution of residual power currents to the chopper.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a straight edge design is used for the leader element, then the structure is simple and easy to manufacture, but the distribution of residual power current to the chopper is uneven
Solution Approach 1:
The leader element features a sloping edge design at specific locations rather than a completely complex structure. This local quality change creates favorable flow conditions at critical areas where residual power current needs redirection, achieving improved distribution uniformity while maintaining overall structural simplicity and ease of manufacture.
Solution Approach 2:
The leader element is made movable relative to the housing, allowing its position to be adjusted dynamically. This enables adaptation to different operating conditions and harvest parameters, optimizing the distribution of residual power current to the chopper while maintaining a relatively simple base structure.
2Reliability
If the leader element is fixed in position, then the structure is simple and reliable, but the distribution of residual power current cannot be adapted to different conditions
Solution Approach 1:
The leader element is designed to be movable relative to the housing along a guide device, transforming it from a fixed to a dynamic component. This allows the system to adapt to different harvest parameters and operating conditions while maintaining structural reliability through guided motion and proper mechanical constraints.
Solution Approach 2:
The position parameter of the leader element can be changed to adapt the distribution characteristics. By adjusting the leader element's position relative to the housing, the system can optimize performance for different harvest conditions while maintaining a reliable mechanical structure.
3Manufacturing precision
If the leader element continuously moves between storage and distribution positions, then the distribution uniformity is improved, but the device complexity increases
Solution Approach 1:
A continuous cyclical movement mechanism is implemented, allowing the leader element to oscillate between storage and distribution positions. This dynamic operation achieves uniform distribution by continuously varying the flow path, while the mechanism maintains reasonable complexity through use of a guide device and actuator integrated into the existing housing structure.
Solution Approach 2:
The leader element performs periodic oscillation between two extreme positions (storage and distribution), creating a continuous cyclical motion pattern. This periodic action ensures that all areas of the chopper receive residual power current uniformly over time, while the mechanism remains relatively simple through use of basic actuation and guidance components.
Data Source
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AI summary
The present application relates to an axial separator (2) for a combine harvester (1), comprising a housing (3), a separator rotor (5) rotatably mounted within the housing (3) about its longitudinal axis (4), and a guide element (6) arranged on the housing (3), wherein the housing (3) has a receiving area (7) for receiving a crop flow to be processed, wherein the crop flow can be processed in a separation area (8) located downstream of the receiving area (7) by means of the interaction of the separator rotor (5) with the housing (3), such that a portion of the crop contained in the crop flow can be separated from the crop flow and the crop flow can thus be converted into a residual stream, wherein the housing (3) has a discharge area (9) downstream of the separation area (8) for discharging the residual stream from the axial separator (2).wherein the guide element (6) is assigned to the discharge area (9) and the flow direction of the residual material stream exiting the discharge area (9) can be influenced by means of the guide element (6), wherein the guide element (6) – viewed in the direction of the longitudinal axis (4) of the separator rotor (5) – has opposing edge edges (10, 11). In order to provide an axial separator in which the distribution of the residual material stream during its discharge from the axial separator is further improved compared to the prior art, it is proposed according to the invention that at least one edge edge (11) of the guide element (6) is at least partially inclined or stepped.