Waste Collection Vehicle Bucket Drive Mechanism
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Solution Overview
Problem
Existing waste collection vehicles face issues with waste falling between the bucket and the bin during transfer, and the need for costly modifications to achieve a low loading height, which are becoming increasingly restricted.
Innovation Solution
A waste collection vehicle design featuring a movable bucket that rises and pivots while maintaining sliding contact with the bin's divider wall, equipped with a rotatable packing paddle to sweep and compact waste into the bin, preventing loss and optimizing loading efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a bucket system is used to transfer waste into a bin, then waste collection efficiency is improved, but waste may fall between the bucket and the bin during transfer
Solution Approach 1:
A flexible curtain is introduced as an intermediary element between the bucket and the bin. The curtain is attached to the bucket and extends downward to contact the bin's divider wall, creating a flexible seal that prevents waste from falling into gaps during the transfer operation.
Solution Approach 2:
The curtain is made of flexible material that can adapt to the movement of the bucket. As the bucket rises and pivots, the flexible curtain maintains contact with the bin's divider wall, dynamically sealing the gap between the bucket and bin without requiring rigid structural modifications.
2Productivity
If the chassis frame is modified to achieve a low loading height, then loading efficiency is improved, but modification costs and regulatory restrictions increase
Solution Approach 1:
The flexible curtain acts as an intermediary that enables effective waste transfer without requiring structural modifications to the chassis frame. By sealing the gap between the bucket and bin through the curtain, the system achieves low loading height efficiency while avoiding costly and regulated frame modifications.
Solution Approach 2:
The flexible curtain provides a dynamic solution that adapts to the bucket's movement during loading. Rather than requiring fixed structural modifications, the curtain dynamically seals the gap as the bucket rises and pivots, achieving the benefits of low loading height without permanent chassis alterations.
3Productivity
If the bucket rises and pivots to transfer waste, then transfer efficiency is improved, but gaps may form between the bucket and bin allowing debris to fall
Solution Approach 1:
The flexible curtain maintains seal integrity throughout the bucket's motion cycle. As the bucket rises and pivots, the flexible material continuously contacts the bin's divider wall, preventing gap formation and ensuring reliable sealing despite the dynamic movement.
Solution Approach 2:
The curtain's flexibility allows it to adapt to the changing position of the bucket during transfer. The dynamic seal maintains contact with the bin wall throughout the motion, ensuring consistent prevention of debris leakage regardless of the bucket's instantaneous position.
Data Source
AI summary
A waste collection vehicle, such as a garbage truck, recycling truck or organic waste collection truck, has a bucket drive mechanism. The vehicle has a waste container that houses a bin and a movable bucket for receiving waste. The movable bucket is driven upwardly in sliding contact with a divider wall of the bin by the bucket drive mechanism. The bucket drive mechanism further causes the bucket to rotate about a pivot for transferring waste from the bucket into the bin. A rotatable paddle may be provided for sweeping the waste from the bucket and for compacting the waste inside the bin. The bucket drive mechanism may include inclined actuators eccentrically connected to sliding collars that run over guide rails to raise the bucket until the sliding collars reach a horizontally disposed rocker shaft that acts as a pivot for pivoting the bucket.