Mobile Crusher Drive With Dual-Source Main-Shaft Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing material processing plants face challenges in designing a compact and reliable drive train with a low number of parts that can efficiently switch between internal combustion engine and electric motor operation while minimizing wear and optimizing energy use.
Innovation Solution
A drive system featuring a transfer case with a main shaft that can be selectively coupled to either an internal combustion engine or an electric motor, utilizing a clutch system to connect and disconnect machine units as needed, and incorporating speed conversion devices and clutches to optimize power transmission and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a dual-powertrain system with multiple couplings is used to enable switching between internal combustion engine and electric motor, then operational flexibility and energy efficiency are improved, but device complexity and susceptibility to wear increase due to the large number of moving transmission components
Solution Approach 1:
The main shaft is designed to serve multiple functions: it receives power from both the internal combustion engine and the electric motor, and it drives multiple machine units including the crushing unit, hydraulic pump, and electric generator. This multi-functional design eliminates the need for separate transmission paths for each power source and each machine unit, thereby reducing the overall number of transmission components while maintaining full operational flexibility.
Solution Approach 2:
The patent merges the transmission functions by coupling both the internal combustion engine and electric motor to a single main shaft, and by coupling all machine units (crushing unit, hydraulic pump, electric generator) to the same main shaft. This consolidation of transmission paths reduces the number of intermediate couplings and transmission components compared to having separate transmission systems for each power source and each machine unit.
2Ease of operation
If multiple clutches and couplings are used to selectively connect power sources and machine units, then operational control is improved, but reliability decreases due to increased susceptibility to wear
Solution Approach 1:
The main shaft serves as a universal transmission element that handles power from both engine and motor, and drives all machine units. This reduces the total number of couplings required, as the main shaft provides a common connection point for all power and power delivery operations, thereby reducing wear points while maintaining full operational control.
3Reliability
If a robust main shaft is designed to handle high load transmission, then reliability is improved, but weight and size of the drive train increase
Solution Approach 1:
The main shaft is designed as a single robust component that handles all high-load transmission tasks: receiving power from both the internal combustion engine and electric motor, and driving all machine units including the crushing unit, hydraulic pump, and electric generator. This consolidates the load-bearing function into one optimized component rather than requiring multiple heavy-duty transmission elements, thereby achieving the necessary reliability while minimizing overall drive train weight.
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a drive for a mobile material processing plant (1), in particular for a rock crusher, having an internal combustion engine (12) and an electric motor (19), wherein the internal combustion engine (12) can be selectively coupled to or uncoupled from a mechanical drive train (14) on the drive side thereof by means of an internal combustion engine coupling (13) and the electric motor (19) can be selectively coupled to or uncoupled from the mechanical drive train (14) on the drive side thereof by means of an electric motor coupling (19.2), wherein the drive train (14) has an output side with at least one output, wherein at least one machine unit, in particular a crushing unit (10), is driven by means of the output(s).In order to be able to design a compact drive which functions reliably during operation with a low outlay on parts, it is provided according to the invention that a transfer case (30) with a main shaft (31) is provided, that the internal combustion engine (12) can be selectively coupled to and uncoupled from the main shaft (31) by means of the internal combustion engine coupling (13) and the electric motor (19) can be selectively coupled to and uncoupled from the main shaft (31) by means of the internal combustion engine coupling (13) and that a plurality of outputs are coupled to the main shaft (31), by means of which machine units, in particular at least the crushing unit (10), can be driven.