Agricultural Machine Side Frame Pivoting Mechanism
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Solution Overview
Problem
Existing agricultural working machines face limitations in flexibility and operational stability due to the way forces and moments are transmitted during the pivoting and folding of side frames, leading to suboptimal adaptation to different positions and increased stress on the central frame.
Innovation Solution
The introduction of a dual adjusting and lifting device system, where one device connects the side frames and another connects each side frame to the central frame, allowing for partial alternating adjustment and reduced stress on the central frame during pivoting and folding, enabling more flexible and stable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If at least one adjusting and/or lifting device is arranged between one of the side frames and the central frame, then the side frames can be pivoted between working and transport positions, but the forces and moments from the side frames and work tools are transmitted almost exclusively to the central frame, negatively affecting operational stability
Solution Approach 1:
The patent divides the force transmission system into multiple independent paths by introducing a second adjusting and/or lifting device that connects the side frames to each other. This segmentation allows forces to be distributed across multiple structural elements (central frame and side frames) rather than concentrating them all on the central frame, thereby maintaining adaptability while improving stability.
Solution Approach 2:
The second adjusting and/or lifting device acts as an intermediary element that provides an alternative force transmission path between the side frames and the central frame. This intermediary structure enables forces to be redistributed through the side frame-to-side frame connection before reaching the central frame, reducing the direct load on the central frame and improving overall operational stability.
2Device complexity
If the side frames are coupled and/or connected to one another directly by the adjusting and/or lifting device, then force transmission is simplified, but the position of the side frames cannot be optimally adapted to different situations with sufficient flexibility
Solution Approach 1:
The patent implements a dynamic force transmission system where the second adjusting and/or lifting device can be selectively activated or deactivated. This allows the system to adapt between different force transmission modes: direct coupling when simplicity is needed, and distributed coupling when flexibility is required for optimal positioning in different working conditions.
Solution Approach 2:
The system enables parameter changes in the force transmission configuration by allowing the second adjusting and/or lifting device to be positioned or activated at different locations or in different modes. This parameter variability permits optimization of both force transmission simplicity and positioning flexibility depending on the specific operational requirements.
3Adaptability or versatility
If the frame is divided into central frame and side frames that can be pivoted, then the working machine can operate in different positions (working and transport), but the flow of forces and moments during pivoting creates increased stress on the central frame
Solution Approach 1:
The patent segments the force transmission path by introducing the second adjusting and/or lifting device that creates an alternative load-bearing path through the side frames. This segmentation distributes the stresses from pivoting operations across multiple structural components rather than concentrating them on the central frame, thereby reducing stress on any single element while maintaining operational flexibility.
Solution Approach 2:
The second adjusting and/or lifting device acts as a counterbalancing element that offsets the forces generated during pivoting operations. By providing an alternative force transmission path, it counteracts the excessive stress on the central frame, effectively balancing the load distribution to protect the central frame from excessive mechanical stress while enabling position changes.
Data Source
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AI summary
Agricultural working machine (10) which is designed to cultivate an agricultural area and/or to spread granular material, with at least one central frame (20) and at least two side frames (21A, 21B) which are pivotable about a horizontal pivot axis (210A, 210B) and which are arranged laterally on the central frame (20), and with at least one adjusting device which is assigned to the side frames (21A, 21B) and/or the central frame (20) and which is designed to pivot at least one of the side frames (21A, 21B) relative to the central frame (20).In order to further increase the flexibility of the side frames (21A, 21B) and thus of the working machine (10) during the pivoting and/or folding process between the transport and working positions in a particularly simple manner, it is provided that the adjusting device has at least one first adjusting and/or lifting device (30) arranged between the side frames (21A, 21B) and at least one second adjusting and/or lifting device (40) arranged between one of the side frames (21A, 21B) and the central frame (20).