Hydraulic Drive System for Mobile Recycling Equipment
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Solution Overview
Problem
Existing mobile and stationary recycling devices are limited in their ability to transition between network-bound and mobile operations, often requiring frequent replacement of electrical drives due to high wear, which restricts their long-term use.
Innovation Solution
A drive system that combines an electric motor for network-bound operation and a self-sufficient combustion engine for mobile use, coupled with a hydraulic pump to drive separation or shredding devices, allowing for efficient energy conversion and reduced wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a device is designed to be both stationary/grid-connected and mobile/off-grid with multiple individual electric drives, then it can operate in both modes, but the electric drives are subject to high wear and tear under high loads and require frequent replacement
Solution Approach 1:
The patent replaces the electric motor drive system with a combustion engine drive system. The combustion engine is coupled to a hydraulic pump that drives the separation and shredding devices through hydraulic motors, eliminating the wear-prone electric drives while maintaining dual operation capability through the versatile power source
Solution Approach 2:
The patent introduces a hydraulic transmission system where a combustion engine drives a hydraulic pump that supplies hydraulic fluid to hydraulic motors powering the separation and shredding devices. This hydraulic system replaces the direct electric motor drives, providing smoother power delivery and reduced mechanical wear
2Adaptability or versatility
If multiple individual electric drives are used for various device components, then the device can function as both mobile and stationary, but the drives require frequent replacement due to high wear
Solution Approach 1:
The patent merges multiple individual electric drives into a single combustion engine that powers a hydraulic pump system. This single power source drives all separation and shredding components through hydraulic transmission, reducing the number of drive components while maintaining full functionality
Solution Approach 2:
The combustion engine serves as a universal power source that can operate the entire device in both mobile and stationary modes. The hydraulic pump system acts as a universal transmission mechanism that distributes power to all device components, replacing multiple specialized electric drives
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
Enables long-term, efficient operation of recycling devices in both stationary and mobile settings by providing a reliable energy source and reducing the need for frequent electrical drive replacements.
Implementation Method 1
an internal combustion engine (7) which is independent of the power grid, for driving the at least one drive means (6)
Implementation Method 2
the drive means (6) is coupled to at least one hydraulic pump (8) of the drive system (1)
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
The present invention relates to the use of a drive system (1) for a mobile and/or off-grid device (4) comprising a separating device (2) or a shredding device (3) for separating and/or shredding feed material, in particular recycled material, wherein the drive system (1) comprises an electric motor (5) connectable to the power grid for power supply for driving at least one drive element (6), in particular at least one drive shaft, of the drive system (1) and an internal combustion engine (7), in particular a diesel engine, independent of the power grid, for driving the at least one drive element (6), wherein the drive system (1) is designed such that the drive energy required for driving the drive element (6) can be supplied either by the electric motor (5) or by the internal combustion engine (7), and wherein the drive element (6) is coupled to at least one hydraulic pump (8) of the drive system (1).