Extendable Bridge Laying Arm for Heavy Vehicle Crossing
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Solution Overview
Problem
Existing bridge-laying devices struggle to bridge larger distances with sufficient stability and can only accommodate limited loads due to their two-part structure, restricting the passage of heavy vehicles.
Innovation Solution
A bridge-laying device with an extension mechanism for the laying arm, allowing it to move from a transport position to an extended position, increasing the device's length and stability, and using a one-piece bridge design to support higher loads without the need for standard loading dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the laying arm is extended to bridge larger distances, then the bridging capability is improved, but the device complexity increases
Solution Approach 1:
The laying arm is divided into a base body and an extendable section. The extendable section can be displaced relative to the base body to increase the overall length of the laying arm, enabling it to reach greater distances while maintaining a compact configuration when retracted.
Solution Approach 2:
The laying arm transitions from a static structure to a dynamic one with extendable capabilities. The extendable section can be moved to different positions along the base body, allowing the laying arm to adapt its length according to the specific bridging requirements.
2Volume of moving object
If the bridge is designed as a two-part structure, then the loading dimensions are reduced, but the load-bearing capacity decreases
Solution Approach 1:
Instead of dividing the bridge into multiple parts to reduce loading dimensions, the invention uses a single-piece bridge design. The extended laying arm compensates for the increased size by enabling the vehicle to position itself closer to the obstacle, effectively solving the loading dimension issue without compromising bridge strength.
Data Source
Figure 1a~1c
Figure 2
Figure 3a~3j
AI summary
The invention relates to a bridge laying device (2) for laying a bridge (3), in particular a single-piece bridge, comprising a main part (5) for arranging on a load transport vehicle (7), in particular a hook-lift vehicle, a laying arm (12) for setting down the bridge (3), and an extending device (6) for moving the laying arm (12) from a transport position into an extended placing position. The invention additionally relates to a bridge laying system (1) comprising a load transport vehicle (7), in particular a hook-lift vehicle, and a bridge laying device, (2) which can be arranged on the load transport vehicle (7), and to a method for laying a bridge (3), in particular a single-piece bridge, using a bridge laying device (2).