Earth Scraper With Movable Upper Floor
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Solution Overview
Problem
Existing earth scrapers face inefficiencies as the earth builds up in the container, requiring increased towing force to continue scraping, leading to a less efficient scraping process.
Innovation Solution
A scraper design featuring a container with a lower and upper floor, where the upper floor can be elevated by a lifter to create space between the two floors, allowing for continuous earth collection and redistribution of weight to reduce towing force, along with a hydraulic accumulator to assist in raising the upper floor using stored energy from the tractor unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the container is filled with earth, then the scraping capacity increases, but the towing force required increases significantly
Solution Approach 1:
The container is divided into two separate floors - a lower floor and an upper floor. This segmentation allows the earth to be collected in the lower floor first, then transferred to the upper floor, effectively dividing the loading process into stages and reducing the instantaneous weight burden on the towing vehicle.
Solution Approach 2:
The invention introduces a vertical dimension by adding a second floor to the container. Instead of simply increasing the horizontal capacity of a single-level container, the system adds height to create additional storage space, thereby increasing total earth capacity without proportionally increasing the horizontal footprint or the towing force required.
2Productivity
If the container capacity is increased, then the scraping efficiency improves, but the device complexity increases
Solution Approach 1:
The container structure is segmented into two independent floors that can be separately managed. The lower floor collects earth initially, then the upper floor is elevated to receive and hold additional earth. This segmentation allows for simplified individual floor designs while achieving increased overall capacity.
Solution Approach 2:
The upper floor is made movable rather than fixed, allowing it to be elevated and lowered as needed. This dynamic element enables the container to adapt its internal configuration - lowering the upper floor to load earth into the lower floor, then elevating it to create storage space, thereby increasing capacity without requiring a permanently complex static structure.
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
This design enhances the efficiency of the scraping process by reducing the towing force needed and improving the dumping of earth, allowing for uninterrupted operation and reduced wear on the scraper's components.
Implementation Method 1
a hydraulic accumulator to assist in raising the upper floor using stored energy from the tractor unit
Data Source
AI summary
Described is an earth scraper including multiple buckets to receive earth scraped by a scraper blade. A lifter mechanism is provided to move one of the buckets between elevated and lowered positions.