Scraper Device With Central Guide Means For Uniform Traction
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Solution Overview
Problem
Existing scraping devices for animal waste in pig farming pits suffer from large unscraped zones, lack of rigidity, and inadequate pressure adjustment, leading to inefficiencies and wear issues.
Innovation Solution
A mobile scraping device with a frame featuring transverse scraper blades, longitudinal guide means with a median profile for uniform traction, adjustable support mechanisms, and flexible blades that form an angle of up to 30° with the surface, ensuring effective scraping and easy movement without buttressing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If guide means are placed at the end of the blades, then the device can be moved on the surface to be cleaned, but there is a very large unscraped zone
Solution Approach 1:
The guide means transitions from end-position placement to central longitudinal placement, changing the spatial dimension of guidance. This central positioning allows the blades to extend laterally from the centerline, covering the entire width of the surface and eliminating unscraped zones while maintaining ease of movement.
2Productivity
If the device is subjected to significant forces during scraping, then it can effectively scrape waste, but it is not sufficiently rigid and tends to buttress
Solution Approach 1:
The frame structure implements local quality by providing enhanced rigidity at critical load-bearing points (central guide means, blade mounting locations) while maintaining overall flexibility for movement. This localized reinforcement prevents buttressing during scraping operations without compromising the device's ability to navigate the surface.
3Productivity
If tensile force is used to ensure pressure on the scraper blades, then the blades can scrape the surface, but there are no means for adjusting the pressure and wear or irregularity cannot be corrected
Solution Approach 1:
The blade mounting system transitions from fixed tensile force application to a dynamic adjustable mechanism. The blades can now be positioned and pressed against the surface with controllable force, allowing operators to adapt pressure levels to different scraping conditions and compensate for blade wear or irregularities during operation.
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 device achieves efficient scraping with uniform traction and pressure distribution, reducing unscraped zones and wear, while allowing for effective separation of solid and liquid waste phases.
Implementation Method 1
the facing faces of the wings of the 'U' are provided with a coating with a low coefficient of friction
Implementation Method 2
the device is subjected to significant forces and is not sufficiently rigid, so that it tends to buttress
Implementation Method 3
the bottom of the manure recovery pit comprises walls with a transverse profile in slope, which cause a gravitational flow of the liquids essentially, in the direction of at least one calibrated flow slot
Data Source
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AI summary
The invention relates to a mobile device (1) for scraping the bottom of a ditch in which animal waste is collected and recovered, intended to be moved in a longitudinal direction (L) along this bottom (5) to scrape the waste present therein, and which comprises a supporting structure (10) provided with at least two generally transverse scraper blades (2), with generally longitudinal guide means (11), and with means (TRA)of pulling it in a longitudinal direction, characterized in that said guide means comprise a central longitudinal section piece (11), on each side of which at least one of said blades (2) extends, and in that this section piece (11) has an opening (O) facing in the same direction as the edge of said blades (2), so that it can fit over a longitudinal protrusion (52) integral with said bottom (5), and slide along said protrusion.