Dual-Path Coolant Filtration to Delay Filter Clogging
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Solution Overview
Problem
Existing coolant supply devices face maintenance burdens due to rapid clogging of filtration filters in foreign matter capturing units, which decreases the efficiency of foreign matter capture and increases maintenance demands.
Innovation Solution
The coolant supply device incorporates a dual-pump system with a first pump using a pressure-feeding mechanism and a second pump using a screw immersed in the coolant, along with a filtration filter-based foreign matter capturing unit on one flow path and a filterless type on another, to delay clogging and reduce maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filtration filter is used in the foreign matter capturing unit, then the foreign matter can be captured effectively, but the filtration filter clogs quickly requiring frequent maintenance
Solution Approach 1:
The coolant supply system is divided into multiple independent flow paths (first flow path with first pump, second flow path with second pump). The foreign matter capturing unit with filtration filter is placed only on the first flow path, while the second flow path operates without it. This segmentation allows the system to maintain foreign matter capture capability while reducing the frequency and burden of filter maintenance.
2Reliability
If the filtration filter is placed on the flow path, then foreign matter is captured, but the filter clogs in short time decreasing capture efficiency
Solution Approach 1:
The system segments the coolant flow into two separate paths: the first flow path includes the filtration filter for capturing foreign matter, while the second flow path bypasses the filter. This allows continuous operation with reduced filter loading, extending the filter's service life and maintaining capture efficiency over longer periods.
Solution Approach 2:
Instead of placing the filtration filter on the entire coolant flow path, it is placed only on part of the flow (first flow path). This partial application reduces the total amount of foreign matter the filter must handle, preventing rapid clogging while still providing effective foreign matter capture for a portion of the coolant circulation.
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 effectively delays the clogging of filtration filters, reducing the maintenance burden of the foreign matter capturing unit and ensuring continuous operation with efficient coolant filtration and circulation.
Implementation Method 1
a screw immersed in the coolant stored in the first coolant tank... the foreign matter contained in the coolant stored in the first coolant tank is stirred more greatly when the second pump is driven
Implementation Method 2
a first foreign matter capturing unit that has a filtration filter, captures a foreign matter contained in the coolant using the filtration filter
Data Source
AI summary
A coolant supply device includes: a first coolant tank; a first pump that (86), delivers a coolant from the first coolant tank using a first pressure-feeding mechanism portion; a second pump that (86) (87) (21), delivers the coolant from the first coolant tank using a second pressure-feeding mechanism portion, and a screw immersed in the coolant stored in the first coolant tank; a first flow path through which the coolant from the first pump flows; a second flow path through which the coolant from the second pump flows; and a first foreign matter capturing unit that has a filtration filter, and is provided on a route of the first flow path. The coolant having passed through the first foreign matter capturing unit flows directly through a separately placed coolant tank without passing through a machining area of a machine tool.