Crankshaft Balancer Horizontal Drilling Imbalance Correction
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Solution Overview
Problem
Conventional crankshaft balancing systems face challenges in efficiently correcting imbalances, as they often rely on trial and error and may introduce dynamic imbalances when drilling to offset static imbalances, due to the complexity of determining optimal drill sites and depths.
Innovation Solution
A crankshaft balancer machine with a measurement station to gather vibration data, a transfer station for moving the crankshaft, and a correction station equipped with a horizontal drilling system, utilizing a processor-based circuit to calculate optimal drill sites and depths based on imbalance data, ensuring precise material removal to achieve rotational balance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If trial and error method is used to determine drill sites and depths, then the balancing process can be completed, but the efficiency is low and dynamic imbalances may be introduced
Solution Approach 1:
The system performs preliminary measurement and calculation before drilling. The measurement station captures vibration data and the processor calculates optimal drill sites and depths in advance, so that when drilling occurs, it is based on pre-determined precise parameters rather than trial and error, thereby improving efficiency while minimizing the risk of dynamic imbalances
Solution Approach 2:
The system uses vibration sensors to measure the actual imbalance of the crankshaft, feeds this data back to the processor, which then calculates the correction parameters and guides the drilling operation. This closed-loop feedback ensures that drilling is precisely targeted to correct the measured imbalance without introducing dynamic imbalances
2Manufacturing precision
If conventional drilling methods are used to offset static imbalances, then material can be removed, but the complexity of determining optimal drill sites and depths increases
Solution Approach 1:
The system replaces complex manual calculation and trial-and-error mechanical adjustment with an automated measurement and calculation system. Vibration sensors and a processor automatically determine optimal drill sites and depths, substituting mechanical trial-and-error with electronic measurement and computational analysis, thereby achieving high precision while managing complexity through automation
Solution Approach 2:
The system changes from conventional drilling parameters to optimized parameters calculated from actual vibration data. The processor determines specific drill site locations and depths based on measured imbalance characteristics, transforming generic drilling operations into precisely parameterized corrections that achieve manufacturing precision
3Manufacturing precision
If multiple drill sites are used to correct imbalance, then the correction can be more accurate, but the invasiveness of material addition increases
Solution Approach 1:
The system applies correction locally at specifically identified drill sites rather than distributing material addition throughout the crankshaft. The processor determines exact locations where material should be removed or added, concentrating the correction action at precise local positions to achieve accurate imbalance correction with minimal material intervention
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
The system effectively corrects imbalances with minimal invasive material addition, reducing the risk of introducing dynamic imbalances and improving the efficiency of the balancing process by using a structured approach to determine optimal drill locations and depths.
Implementation Method 1
a measurement station configured to rotate the crankshaft to obtain vibration-related data
Implementation Method 2
a correction station configured to drill at least a portion of the crankshaft to correct an imbalance
Data Source
AI summary
A crankshaft balancer machine for balancing a crankshafts having a measurement station configured to rotate the crankshaft to obtain vibration-related data, a transfer station configured to transfer the crankshaft between the measurement station and the correction station, and a correction station configured to drill at least a portion of the crankshaft to correct an imbalance in response to the imbalance data. The measurement station includes a base structure, a measurement bridge support, a plurality of flexural support legs extending therebetween, at least one sensor, and a drive system to spin the crankshaft and output imbalance data. The transfer station includes at least one lifting arm selectively engaging the crankshaft and supporting the crankshaft during transfer. The correction station includes a drilling device horizontally disposed to achieve a horizontal drill direction into the crankshaft to correct any imbalance according to a customized software protocol.