Wheeled Crane Self-Mounting Supporting Legs
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Solution Overview
Problem
Current wheeled cranes face challenges in efficiently demounting and mounting supporting legs during transportation and operation, requiring auxiliary cranes, which increases operational costs, time, and space requirements, and results in high dependency on external equipment.
Innovation Solution
The integration of auxiliary supports that can change positions and angles relative to the vehicle frame to maintain balance, allowing the wheeled crane to self-demount and self-mount supporting legs using its operation part, eliminating the need for auxiliary cranes and enhancing maintenance convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If supporting legs are demounted and mounted using auxiliary cranes, then the demounting and mounting task can be completed, but operational costs increase, time consumption increases, and dependency on external equipment increases
Solution Approach 1:
The wheeled crane is equipped with an operation part that can independently perform demounting and mounting of supporting legs without requiring external auxiliary cranes. The operation part includes lifting mechanisms and manipulating mechanisms that enable the crane to service itself, eliminating dependency on external equipment and reducing both time and operational costs.
Solution Approach 2:
The patent combines the demounting and mounting functions with the existing operation part of the wheeled crane. The operation part integrates lifting mechanisms and manipulating mechanisms that work together to complete the supporting leg assembly/disassembly tasks, merging multiple functions into a unified system rather than requiring separate auxiliary equipment.
2Ease of manufacture
If supporting legs are demounted and mounted using auxiliary cranes, then the task can be completed, but operational costs increase and space requirements increase
Solution Approach 1:
The operation part of the wheeled crane is designed to perform multiple functions: it can lift loads, manipulate supporting legs for demounting and mounting, and maintain crane stability. This multi-functional design eliminates the need for separate auxiliary cranes, reducing device complexity while maintaining ease of supporting leg assembly through the integrated system.
3Reliability
If the wheeled crane maintains stability during supporting leg operations, then safety is ensured, but the crane requires additional support mechanisms
Solution Approach 1:
The patent introduces auxiliary supports as intermediary elements that provide temporary stabilization during the demounting and mounting operations. These supports act as mediators between the crane body and the ground, distributing loads and maintaining stability without requiring complex active control systems. The auxiliary supports are simple mechanical elements that can be deployed and retracted as needed.
Data Source
AI summary
A wheeled crane and self-demounting and self-mounting methods for supporting legs thereof is disclosed. The wheeled crane includes a vehicle frame and auxiliary supports, and the auxiliary supports can enable the vehicle frame to keep balance. Since the wheeled crane has auxiliary supports, when the supporting legs are demounted or mounted, the auxiliary supports function as supporting legs, so that the supporting legs can be mounted and demounted by the operation part of the wheeled crane with no need of using an auxiliary crane, and thus the self-mounting and self-demounting of the supporting legs of the wheeled crane are realized.