Front Loader Cladding Gap Design for Stress Reduction
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Solution Overview
Problem
The existing front loader designs face issues with weight distribution, material stress, and maintenance due to significant forces acting on the control rod, leading to high material requirements and limited design flexibility.
Innovation Solution
The introduction of a panel that can move relative to the control rod to absorb deformations without transferring forces to the cladding, allowing for a lighter and more flexible design with independent material and manufacturing choices for the panel and control rod.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the control rod is designed to withstand significant forces with high material requirements, then the strength and reliability are improved, but the weight and manufacturing complexity increase
Solution Approach 1:
The system is divided into two independent components: the control rod (subject to forces) and the cladding (for protection and appearance). The cladding is separated from the control rod through a gap, allowing each component to be optimized independently for its specific function without compromising the other.
Solution Approach 2:
A gap is introduced as an intermediary space between the control rod and the cladding. This gap acts as a mediator that decouples the force-bearing function from the protective/aesthetic function, allowing the cladding to be lightweight while the control rod maintains its strength.
2Object-affected harmful factors
If the cladding is designed to fully enclose the control rod for protection and appearance, then the protection and visual appearance are improved, but the manufacturing flexibility and material choices are restricted
Solution Approach 1:
The cladding is segmented into separate pieces that do not fully enclose the control rod. The gap allows independent manufacturing of the cladding and control rod using different processes and materials, greatly enhancing manufacturing flexibility while still providing adequate protection.
Solution Approach 2:
The cladding provides protection only where needed (locally) rather than fully enclosing the control rod. The gap regions allow for different material choices and manufacturing methods for the control rod and cladding, improving ease of manufacture while maintaining necessary protection.
3Stability of the object's composition
If the control rod and cladding are rigidly connected to maintain structural integrity, then the structural stability is improved, but the ability to absorb deformations and reduce stress on the cladding is reduced
Solution Approach 1:
The connection between the control rod and cladding is made dynamic through the gap, which allows relative movement and deformation absorption. This dynamic arrangement reduces stress transmission to the cladding while maintaining overall structural stability during operation.
Solution Approach 2:
The gap serves as an intermediary that decouples the structural integrity function from stress transmission. It allows the control rod to deform under load without transmitting these deformations to the cladding, reducing stress on the cladding while maintaining system stability.
4Object-affected harmful factors
If the gap between control rod and cladding is closed to prevent contaminant accumulation, then the visual appearance and cleanliness are improved, but the weight and complexity of the cladding structure increase
Solution Approach 1:
The cladding is designed to close the gap only in specific regions where contaminant accumulation would affect appearance, rather than fully enclosing the control rod. This selective closing maintains visual appearance while minimizing additional weight and complexity.
Solution Approach 2:
The cladding is segmented into regions that close the gap locally and regions that leave it open. This segmentation allows the system to prevent contaminant accumulation in critical areas without the weight penalty of a fully enclosed structure.
Data Source
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AI summary
According to the invention, a cover (34) is used which laterally covers a gap (31) between a control rod (26) and an arm (6) of the front loader (1). The cover (34) is designed separately from the control rod (26) and is made, for example, of plastic. The cover (34) is connected with a longitudinal degree of freedom to a deflection lever (11) or a tractor coupling device (2) such that elastic deformations of the control rod (26) do not cause stress on the cover (34), so that the cover (34) is not part of the support structure for holding and moving the implement held on the front loader (1).