Model Tractor Coupling with Adjustable Links
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Solution Overview
Problem
Existing model tractor couplings lack adjustability in height and inclination, making it difficult to accommodate various add-on objects and simulate different operating positions, due to a lack of standardization and fixed attachment points.
Innovation Solution
A coupling system with height-adjustable and length-adjustable lower and upper links, utilizing a three-point power lift design with piston-cylinder units, allowing for adjustable inclination and height to align add-on objects and simulate various operating positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If fixed couplings with standardized connection dimensions are used, then attachments always take the same position after attachment, but various positions during operation such as driving positions or use in the field cannot be simulated
Solution Approach 1:
The coupling system transitions from fixed to dynamic by making both the lower and upper links adjustable in length. The lower link can be adjusted in length to change the height of attachment points, and the upper link can be adjusted to vary the inclination angle. This allows the attachment to assume multiple positions including driving position and field work positions, resolving the contradiction between position consistency and operating position variability.
2Ease of manufacture
If the upper link and lower link are made rigid for standardization, then manufacturing is simplified, but the height of the position cannot be adjusted when attachments are attached
Solution Approach 1:
The rigid link is segmented into adjustable components. The lower link is divided into multiple length-adjustable segments that can be configured to different heights. The upper link is similarly segmented to allow inclination adjustment. This segmentation enables height and angle adjustability while maintaining a relatively simple manufacturing process using standard adjustment mechanisms.
3Device complexity
If previous solutions for couplings are used, then the structure is simple, but they do not allow the height of the position to be adjusted when attachments are attached and the inclination of the attachments is generally not adjustable
Solution Approach 1:
The coupling system is designed with universal adjustability features. Both the lower and upper links incorporate length adjustment capabilities that enable multiple functions: height adjustment for the lower link and inclination adjustment for the upper link. This multi-functional design allows a single coupling system to accommodate various attachment types and operating conditions without requiring multiple specialized components.
Data Source
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AI summary
The invention relates to a model vehicle, in particular a model tractor, with at least one coupling for receiving at least one implement and/or trailer, wherein the coupling comprises at least one lower link and at least one upper link for attaching the implement and/or trailer and the attachment point(s) of the upper link and/or lower link is/are height-adjustable, and wherein the upper link and/or lower link is length-adjustable.