Mobile Crusher Transfer Case for Dual-Mode Power Switching
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Solution Overview
Problem
Existing material processing systems face challenges in achieving a compact and reliable drive train design with a low number of parts that can efficiently operate in both internal combustion and electric motor modes.
Innovation Solution
A transfer case with a main shaft is used, allowing the internal combustion engine and electric motor to be selectively coupled and uncoupled, with outputs driven by the main shaft, and incorporating speed conversion devices and clutches for optimized machine unit operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple clutches and transmission components are used to enable selective coupling of internal combustion engine and electric motor, then the drive system can operate in multiple modes, but the device complexity and number of parts increases
Solution Approach 1:
The patent combines the internal combustion engine and electric motor into a single hybrid drive system that shares common components. Both power sources can selectively couple to the same transmission system, merging their functionality into one integrated drive unit rather than maintaining separate drive trains for each power source.
Solution Approach 2:
The transmission system is designed with universal coupling capabilities that can accommodate both the internal combustion engine and electric motor. The clutch arrangement and transmission components are configured to handle power input from either source, making the system multi-functional and adaptable to different operational modes without requiring separate dedicated systems.
2Adaptability or versatility
If multiple moving transmission components are used to enable selective coupling, then the drive system can switch between power sources, but the susceptibility to wear increases
Solution Approach 1:
The patent extracts and eliminates unnecessary intermediate transmission components that would be required in conventional hybrid systems. By using a simplified clutch arrangement where both power sources can directly couple to the same transmission inputs, the design removes redundant gears, shafts, and coupling mechanisms that would otherwise increase wear points.
Solution Approach 2:
The clutch system acts as an intelligent intermediary that manages power source switching without requiring complex transmission reconfiguration. The clutches selectively engage or disengage power sources from the common transmission system, providing a simple mediation mechanism that reduces wear by avoiding the need for multiple moving parts to accommodate mode changes.
3Strength
If a robust main shaft is used to transmit high loads, then the drive train can handle high power demands, but the weight and size of the drive train increases
Solution Approach 1:
The main shaft is designed as a universal power transmission element that handles loads from both the internal combustion engine and electric motor. Rather than having separate transmission paths for each power source, the single main shaft serves multiple functions, transmitting power from either source to the drivetrain, thereby reducing the need for additional heavy structural components.
Solution Approach 2:
The patent merges the power transmission paths of both power sources into a single common main shaft. This consolidation allows the drive train to use one robust shaft instead of multiple separate shafts, reducing overall weight while maintaining the strength needed to handle high power demands from either power source.
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 results in a simple, compact, and robust drive train with reduced wear and susceptibility to high loads, enabling efficient operation and easy maintenance, while ensuring consistent speed and power transfer between modes.
Implementation Method 1
a drive for a mobile material processing plant, in particular for a rock crusher, having an internal combustion engine
Implementation Method 2
the electric motor can be selectively coupled to and uncoupled from a mechanical drive train by means of an electric-motor clutch
Implementation Method 3
These clutches can function based on any of the common clutch principles. jaw, friction or form-fitting principle
Implementation Method 4
in accordance with the Fottinger principle or any other hydraulic power transmission or combinations of the above-mentioned principles
Data Source
AI summary
A mobile material processing plant has an internal combustion engine and an electric motor. The internal combustion engine can be selectively coupled to or uncoupled from a mechanical drive train by an internal-combustion-engine clutch and the electric motor can be selectively coupled to or uncoupled from the mechanical drive train by an electric-motor clutch. The drive train has at least one output, wherein a crusher unit, is driven by the output. A transfer case has a main shaft. The internal combustion engine may be selectively coupled to and uncoupled from the main shaft by the internal-combustion-engine clutch and the electric motor may be selectively coupled to and uncoupled from the main shaft by the electric-motor clutch. A plurality of outputs may be coupled to the main shaft by means of which outputs at least the crusher unit can be driven.