Modular Vehicle Crane Detachable Counterweight System
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Solution Overview
Problem
Existing vehicle cranes face challenges in adapting to varying usage conditions due to rigid counterweight configurations, which restrict their flexibility and compliance with road transport regulations, particularly regarding axle load and weight limits.
Innovation Solution
The implementation of a modular vehicle crane design featuring a detachable attachment superstructure with auxiliary supports and flying auxiliary counterweights, allowing for flexible adaptation of counterweight moment and radius, and enabling components to be transported separately or together, thus optimizing weight distribution and compliance with regulations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid counterweight configuration is used, then the structural stability is improved, but the adaptability to varying usage conditions deteriorates
Solution Approach 1:
The counterweight system is divided into multiple detachable components: a base counterweight and separate auxiliary counterweights that can be independently attached to auxiliary supports. This segmentation allows the counterweight configuration to be adapted to different usage conditions while maintaining structural stability through proper arrangement of the segmented parts.
Solution Approach 2:
The counterweight system transitions from a static rigid configuration to a dynamic adjustable system. The auxiliary supports can be positioned at different locations, and the auxiliary counterweights can be attached or detached as needed, allowing the counterweight moment and radius to be dynamically adapted to varying operational requirements.
2Strength
If the counterweight is integrated into the superstructure, then the structural integrity is improved, but the ease of transport and assembly deteriorates
Solution Approach 1:
The counterweight system is segmented into a base counterweight integrated with the superstructure and separate auxiliary counterweights that can be independently transported and assembled. This allows the main structural integrity to be maintained while enabling easier transport of individual components and flexible assembly configurations.
3Force
If the total counterweight weight is increased, then the counterweight moment is improved, but the road transport compliance deteriorates
Solution Approach 1:
The counterweight system allows dynamic adjustment of the counterweight moment by varying the position of auxiliary supports and the attachment of auxiliary counterweights. This enables optimization of the counterweight moment for different operational conditions while maintaining compliance with road transport regulations by avoiding excessive total weight when not needed.
Solution Approach 2:
The system changes parameters such as the position of auxiliary supports and the attachment of auxiliary counterweights to optimize the counterweight moment. By adjusting these parameters rather than simply increasing total weight, the system achieves the required counterweight moment while maintaining road transport compliance.
Data Source
AI summary
A vehicle crane having a superstructure that is rotatably mounted on a lower carriage and has a telescopic main jib, where the superstructure consists of a base superstructure and an attachment superstructure arranged in a detachable manner thereon, and the attachment superstructure receives at least one main counterweight. At least one auxiliary support is provided that acts as a hinged support and is fastened to the attachment superstructure, where the rear end of which auxiliary support is suspended via a guying member, and an auxiliary counterweight is suspended from the rear end of the at least one auxiliary support. The invention also relates to a method for rigging such a vehicle crane.