Movable Lip Ejection Blade for Waste Compaction Jam Prevention
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Solution Overview
Problem
Waste collection vehicles experience blade jams due to waste materials like wood and board products getting stuck between the ejection blade and the floor of the compaction chamber, leading to lengthy downtimes and delayed waste collection processes.
Innovation Solution
An ejection blade with a movable lip attached to its lower portion, which pivots to a raised position when moving towards the hopper and a lowered position when moving away, preventing waste from getting stuck and allowing efficient compaction and ejection of waste materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the ejection blade travels the length of the compaction chamber to eject waste, then waste can be discharged from the chamber, but waste materials like wood and board products can get stuck between the blade and floor causing blade jams
Solution Approach 1:
The lip is made movable relative to the blade body, allowing it to dynamically adjust its position between raised and lowered states during different phases of blade operation. This dynamic adjustment prevents waste from getting stuck while maintaining effective compaction contact
2Productivity
If the ejection blade is actuated to travel the length of the compaction chamber, then waste can be ejected, but the vehicle experiences lengthy downtimes when blade jams occur
Solution Approach 1:
The lip is positioned in a raised state before waste enters the compaction chamber, preventing waste materials from getting stuck between the blade and floor. This preliminary positioning action avoids blade jams before they can occur during the ejection process
3Productivity
If the ejection blade compacts waste against the cover, then waste can be compacted efficiently, but the blade must maintain close contact with the chamber floor which causes jamming
Solution Approach 1:
Different portions of the blade have different functional characteristics: the main blade body maintains a lowered position for effective compaction contact with waste, while the lip portion can be raised to prevent waste from getting stuck between the blade and floor
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution reduces downtime due to blade jams and ensures continuous waste collection operations by preventing waste from becoming stuck between the blade and the chamber floor, maintaining efficient compaction and ejection processes.
Implementation Method 1
the lip is pivotably attached to the lower portion of the blade body. Preferably the pivot axis of the lip is transverse to the direction of movement of the blade body between the first position and the second position
Data Source
AI summary
An ejection blade for a compaction chamber with a hopper, the ejection blade including a blade body movable between a first position and a second position within the compaction chamber, and a lip attached to a lower portion of the blade body, the lip is movable to a raised position with respect to a floor of the compaction chamber when the blade body is moving to the first position and is in a lowered position with respect to the floor of the compaction chamber when the blade body is moving to the second position, wherein the first position is proximal to the hopper and the second position is distal to the hopper.