Laser Balancing of Electric Pump Rotors for Fast Unbalance Reduction
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Solution Overview
Problem
Existing methods for balancing rotational components in electric pumps are lengthy, which can lead to damage and acoustic disturbances due to unbalance.
Innovation Solution
A method involving determining the unbalance of a rotational component, followed by material removal using laser radiation to reduce the unbalance, with the number and variables of individual material removals determined before the process to ensure the unbalance falls below a threshold value in a short duration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional balancing methods are used, then the unbalance can be reduced, but the process duration is long
Solution Approach 1:
The patent applies preliminary action by pre-calculating the optimal material removal parameters (amount, location, distribution) based on the measured unbalance before the actual material removal process begins. This allows the system to skip iterative measurement and adjustment cycles, directly executing the predetermined material removal pattern that will achieve the desired balance, thus dramatically reducing process duration while maintaining reliability
Solution Approach 2:
The patent replaces traditional mechanical balancing methods (which involve iterative trial-and-error material removal and remeasurement) with a calculation-based system using mathematical models and algorithms. The system calculates the precise material removal requirements and executes them in one pass, substituting mechanical iteration with computational determination, thereby eliminating time-consuming repetitive cycles
2Reliability
If material removal is performed to reduce unbalance, then the unbalance decreases, but the process takes longer duration
Solution Approach 1:
The system performs preliminary calculation of all material removal parameters before execution, determining the exact amount, location, and distribution of material to be removed in a single planning phase. This allows the actual material removal process to proceed without interruption or iterative adjustments, maximizing productivity while achieving the required unbalance reduction
Solution Approach 2:
The patent enables continuous material removal by pre-planning the entire removal pattern, allowing the laser or other material removal device to operate continuously without stopping for intermediate measurements or recalculations. The useful action of material removal proceeds uninterrupted from start to finish, significantly improving productivity compared to traditional stop-and-check methods
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 method significantly reduces the duration of the balancing process, ensuring the unbalance is minimized efficiently, thereby preventing damage and acoustic disturbances.
Implementation Method 1
the material removal comprises at least two individual material removals by laser radiation
Data Source
AI summary
A method for reducing an unbalance of a rotational component for an electric pump and a balancing machine. The method includes individual material removals by laser radiation and associated material removal variables, which are selected such that the resulting unbalance of the rotational component after a material removal corresponds to a variable below a threshold value variable.