Pivoting Coupling Beam for Three-Point Implement Transport
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Solution Overview
Problem
Elongated, three-point-mounted implements, such as ploughs, pose hazards during transport due to lateral deflections and flexibility in the three-point linkage, increasing the risk of accidents, especially when navigating bends, as they extend far rearwards from the tractor and have limited control over turning radius.
Innovation Solution
A transport arrangement for three-point-mounted implements that includes a coupling beam with adjustable lower connection points, allowing it to pivot around a vertical axis, transitioning from a rigid connection in the working position to a pivotal state during transport, enabling the implement to be trailed behind the tractor, supported by transport wheels, thereby reducing lateral deflections and improving maneuverability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the implement is rigidly connected to the three-point linkage, then the implement maintains stable working position and weight transfer, but the implement creates hazardous lateral deflections and large turning radius during transport
Solution Approach 1:
The coupling beam is designed to change its connection state dynamically between rigid (during work) and pivotal (during transport), allowing the system to adapt its characteristics based on operational mode. This resolves the contradiction by enabling stable rigid connection during ploughing while allowing free pivoting during transport to reduce lateral deflections.
Solution Approach 2:
The system changes the degree of freedom parameter of the coupling beam between locked (0 degrees of freedom) and unlocked (1 degree of freedom) states. This parameter change allows the implement to maintain rigid connection stability during work while enabling transport safety through increased pivoting capability.
2Stability of the object's composition
If the lower connection points are retracted, then the coupling beam is locked rigidly to the implement frame, but the implement cannot pivot freely during transport
Solution Approach 1:
The connection stability and positioning flexibility are made dynamic through the adjustable lower connection points on coupling arms. The system transitions from a stable locked position during work to a flexible pivotal position during transport, resolving the contradiction between connection stability and positioning adaptability.
3Force
If the implement is configured for three-point mounting, then weight transfer to the tractor is achieved, but the implement extends far rearwards creating traffic hazards
Solution Approach 1:
The coupling beam's ability to pivot freely during transport allows the implement to follow the tractor's path more closely, reducing the hazardous rearward extension effect while maintaining three-point mounting for weight transfer during work.
Data Source
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AI summary
An attachment system for an implement (l)f which is arranged to be connected, at least in a working position, to a three-point implement linkage (21) on an implement carrier (2) and is provided with at least one wheel (15), which is arranged to support the implement (1) in the transport position (T), characterized by connection pins (128) which are arranged to be connected to the lower three- point connectors (211a, 211b) of a three-point implement linkage (21) are arranged to be adjustable between a retracted working position (W) and a transport position (T) displaced in a direction away from an implement frame (11).