Ventilated Blade Assembly for Multi-Blade Coolant Flow
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Solution Overview
Problem
Existing blade assemblies lack efficient cooling mechanisms, as the flow openings on cutting, grinding, or grooving blades are not optimally aligned or configured to enhance coolant flow through the blades, leading to suboptimal cooling performance.
Innovation Solution
The blade assembly features a configuration where multiple blade cores are aligned with flow openings of varying geometries, cross-sectional areas, radial positions, and arcuate positions relative to a common reference on a blade shaft, forming passageways that extend from closer to farther from the shaft and change in cross-sectional area, allowing for improved coolant flow and distribution across the blades.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If flow openings are aligned to form passageways across multiple blade cores, then cooling efficiency is improved, but device complexity increases due to precise alignment requirements
Solution Approach 1:
The blade assembly is divided into multiple discrete blade cores, each with its own flow openings. These segmented blades are arranged around a central shaft, allowing the cooling passageways to be distributed across multiple components rather than requiring a single complex integrated structure. This segmentation enables modular manufacturing and assembly while achieving comprehensive cooling coverage.
Solution Approach 2:
The flow openings are positioned at different radial distances from the shaft and at different arcuate positions, creating three-dimensional passageways that extend across multiple blade cores. By utilizing radial and arcuate dimensions in addition to axial alignment, the patent creates complex cooling paths without requiring excessively precise single-plane alignment, as the openings align through multiple spatial dimensions.
2Quantity of substance
If flow openings have varying geometries and cross-sectional areas, then coolant flow distribution is improved, but manufacturing precision requirements increase
Solution Approach 1:
Different flow openings in the blade assembly have different geometries, cross-sectional areas, and positions tailored to local cooling requirements. Blades closer to the cutting perimeter have different opening characteristics than those near the shaft, allowing optimized coolant distribution matched to the specific thermal conditions at each location. This local customization improves overall cooling effectiveness while the modular blade design allows each opening to be manufactured to precision standards appropriate for its specific function.
3Area of stationary object
If passageways extend from inner portion to outer portion of blade cores, then cooling coverage is improved, but device complexity increases
Solution Approach 1:
Multiple individual flow openings in adjacent blade cores are merged to form continuous passageways that extend from the inner portion near the shaft to the outer portion at the perimeter. By combining the cooling functions of multiple discrete blades into an integrated passageway system, the patent achieves comprehensive cooling coverage across the entire blade assembly while utilizing simple repetitive blade units rather than complex monolithic structures.
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 configuration enhances cooling efficiency by aligning flow openings to create passageways that facilitate airflow from the blade shaft to the perimeter, providing effective cooling for working surfaces, even with a large number of blade cores, thereby improving the overall performance of the blade assembly.
Implementation Method 1
flow openings wherein the first flow opening has a first geometry, cross-sectional area, radial position and arcuate position
Implementation Method 2
cooling flow through openings in the blades of the blade assembly, for example cooling of cutting, grinding or grooving blades
Data Source
AI summary
A blade assembly is formed from multiple blades assembled adjacent each other with openings in respective blades arranged to form a passageway passing through adjacent blades.