Electric Agitator Drive for Mastic Asphalt Transport
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Solution Overview
Problem
The transport of mastic asphalt poses challenges due to its high temperature and flowable nature, requiring efficient and noise-reduced methods to maintain homogeneity and quality during transportation, especially in urban areas.
Innovation Solution
A mobile working machine equipped with an electric agitator drive, a soundproof power generator, and heating units to keep mastic asphalt in motion and at optimal temperature, featuring electrically driven swivel and closing units for easy operation and reduced noise pollution, allowing for flexible and efficient transport without compromising material quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a hydraulic power unit is used to drive the agitator, then sufficient power is available to maintain mastic asphalt homogeneity, but noise emissions are excessive for urban areas
Solution Approach 1:
The patent replaces the hydraulic power unit with an electric power unit. The electric motor-driven agitator system provides sufficient mixing power while generating significantly lower noise emissions (at most 70 dB, preferably at most 65 dB or 64 dB at 7 m distance), making the mobile working machine suitable for operation in noise-sensitive urban areas.
Solution Approach 2:
The patent changes the power transmission parameter from hydraulic to electric. The electric power unit with motor directly drives the agitator, eliminating the noise-generating hydraulic components while maintaining adequate power output for keeping the mastic asphalt homogeneous during transport.
2Quantity of substance
If the container is made larger to increase transport capacity, then more mastic asphalt can be transported, but the height exceeds permissible transport limits on roads
Solution Approach 1:
The patent redistributes the container volume across different spatial dimensions by configuring a multi-axle vehicle platform. The container is arranged horizontally along the vehicle length rather than vertically, maximizing transport capacity within the height constraint of 4.0 m while utilizing the extended length provided by the multi-axle configuration.
Solution Approach 2:
The patent employs a tiltable container configuration that can be inclined to a minimum angle of 5° relative to the horizontal plane. This dynamic positioning enables complete discharge of the mastic asphalt contents while maintaining a compact transport height, allowing the container to optimize between storage capacity and discharge efficiency.
3Adaptability or versatility
If the mobile working machine is designed for high maneuverability in urban areas, then it can navigate narrow streets, but the structure becomes more complex
Solution Approach 1:
The patent divides the mobile working machine into modular functional units: a standardized vehicle platform, a detachable container with tilting mechanism, an electric power unit, and a heating unit. This segmentation allows each component to be optimized independently while maintaining overall maneuverability through the compact, standardized vehicle base design suitable for urban environments.
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
Ensures the transport of mastic asphalt remains homogeneous and of high quality, reduces noise pollution and health risks for operators, and allows for flexible use in urban areas with reduced fuel consumption and emissions.
Implementation Method 1
the agitator is used to drive the agitator... the ready-mixed mastic asphalt is kept in motion during transport with the aid of the agitator
Implementation Method 2
heating units to keep mastic asphalt in motion and at optimal temperature
Implementation Method 3
A power generator, in particular one that is highly soundproof, can be used for the power supply, which generates power
Implementation Method 4
enables the pouring of the mastic asphalt from the container by means of electrical drive energy. The mastic asphalt can be automatically discharged from the pivoted container through the discharge opening as a result of gravity
Data Source
Figure 1
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AI summary
A mobile work machine (1) for transporting mastic asphalt comprises a container (3) for transporting the mastic asphalt, a mixer (25) for stirring the mastic asphalt and an electric mixer drive (26) for driving the mixer (25).