Streamlined Tail Anti-Collision Structure for Battery-Powered Machines
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Solution Overview
Problem
Engineering machines with battery packs as power sources face challenges in protecting the rear end or tail frame from collision damage, as conventional counterweight structures are often omitted, leaving the battery pack vulnerable during operations like climbing or reversing.
Innovation Solution
An anti-collision structure comprising a streamlined, hollow body made of plates that covers the side and rear end walls of the tail frame, providing enhanced strength and impact resistance while allowing for the installation of electric equipment and maintenance access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional counterweight structures are used to protect the rear end, then impact resistance is improved, but device complexity and weight increase
Solution Approach 1:
The patent combines the counterweight function and anti-collision protection function into a single integrated structure. The rear end wall serves dual purposes: providing counterweight for the engineering machine while simultaneously acting as an anti-collision barrier to protect the battery pack, thereby eliminating the need for separate protective structures and reducing overall complexity
Solution Approach 2:
The rear end wall is designed to perform multiple functions simultaneously: it serves as a structural component of the vehicle frame, provides counterweight for balance, and acts as an anti-collision protective barrier. This multi-functional design eliminates the need for dedicated separate components for each function, reducing device complexity while maintaining protection capabilities
2Strength
If thick steel plates or iron blocks are used for the body shell, then impact resistance is improved, but weight increases
Solution Approach 1:
The patent applies local reinforcement only where needed - the rear end wall is strengthened specifically at the anti-collision critical zone to protect the battery pack, while other parts of the vehicle body maintain their original weight-efficient design. This localized approach provides necessary protection without uniformly increasing vehicle weight throughout the entire structure
Solution Approach 2:
The counterweight structure is merged with the anti-collision protective structure, eliminating the need for separate heavy protective plates or iron blocks. The rear end wall itself serves as both the counterweight and the protective barrier, achieving protection without adding extra weight from redundant components
3Volume of moving object
If the battery pack is placed in the tail frame, then space utilization is improved, but vulnerability to collision damage increases
Solution Approach 1:
The patent merges the battery pack placement with the anti-collision protection system by positioning the battery pack within the reinforced rear end wall structure. The tail frame is designed to provide inherent protection to the battery pack, eliminating the need for additional protective measures while maintaining space-efficient layout
Solution Approach 2:
The rear end wall is designed with built-in anti-collision capabilities before any collision occurs. The structure is pre-engineered to absorb and distribute impact forces, providing preliminary protection to the battery pack that is already integrated into the tail frame design, rather than adding protective measures after the fact
Data Source
AI summary
The disclosure relates to an anti-collision structure for an engineering machine, the engineering machine has a tail frame arranged at a rear end. The anti-collision structure comprises an anti-collision body that at least partially covers side walls and a rear end wall of the tail frame, wherein the anti-collision body is made of plates and configured to have a streamline shape and a hollow structure. The anti-collision structure of the disclosure can effectively avoid collision to the rear end or tail of the engineering machine when the machine climbs or reverses, which improves the overall strength and impact-resistance of the tail frame and the main frame of the engineering machine. In addition, the three-dimensional streamlined shape of the anti-collision structure matches the whole vehicle in style, adding highlights for the electric driver. The disclosure also relates to an engineering machine comprising the anti-collision structure.