Magnetized Capturing Body for Foreign Matter Removal in Lubricating Oil
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Solution Overview
Problem
In gear devices, foreign matter such as iron powder generated by wear contaminates lubricating oil, leading to damage and resistance in gears and bearings, necessitating an effective capture and removal mechanism.
Innovation Solution
A foreign matter attracting structure comprising a magnet and a capturing body made of a weakly magnetic material, with a nonmagnetic cover that increases the surface area for attraction and allows easy removal of attracted foreign matter, is employed. The capturing body is magnetized by the magnet and positioned to attract foreign matter over a wide range, while the nonmagnetic cover prevents direct attraction to the magnet, facilitating easy extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a magnet is directly exposed to attract foreign matter, then the attraction force is strong, but the foreign matter cannot be easily removed from the magnet surface
Solution Approach 1:
The attracting body is divided into two functional parts: a magnet for generating magnetic force and a capturing body for holding foreign matter. This segmentation allows the magnet to maintain strong attraction while the capturing body provides a removable surface for foreign matter collection.
Solution Approach 2:
A capturing body made of weakly magnetic material acts as an intermediary between the magnet and foreign matter. It is magnetized by the magnet to attract foreign matter, but can be easily removed from the magnet surface, enabling easy foreign matter removal while maintaining attraction effectiveness.
2Ease of repair
If the attracting body structure is simplified, then the device complexity is reduced, but the ease of maintenance and foreign matter removal is worsened
Solution Approach 1:
The attracting body is segmented into a magnet and a capturing body that can be easily separated. This segmentation simplifies maintenance by allowing the capturing body to be removed and cleaned independently without handling the magnet, improving ease of repair.
Solution Approach 2:
The capturing body is designed to be extractable from the magnet. This extraction capability allows maintenance personnel to remove the capturing body for cleaning or replacement without disassembling the entire attracting body, simplifying the maintenance process.
3Productivity
If the magnet surface area is increased to attract more foreign matter, then the attraction capacity is improved, but the foreign matter becomes difficult to remove
Solution Approach 1:
The attracting body is segmented into a magnet and a capturing body with sufficient surface area. The capturing body provides the necessary surface area for attracting and holding foreign matter, while its separable nature ensures easy removal regardless of the magnet's surface area.
Solution Approach 2:
The capturing body serves as an intermediary that can be magnetized to provide adequate surface area for foreign matter attraction. Since it can be easily separated from the magnet, it maintains high attraction capacity while enabling easy foreign matter removal.
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 structure effectively captures and removes foreign matter from lubricating oil, enhancing the lifespan of gear and bearing components by increasing the removal rate and allowing for easy maintenance without direct exposure to the magnet.
Implementation Method 1
the capturing body is disposed at a position which is magnetized by a magnetic force of the magnet
Data Source
AI summary
A foreign matter attracting structure includes: an attracting body for attracting foreign matter in lubricating oil, wherein the attracting body includes a magnet and a capturing body which is composed of a weakly magnetic material, and the capturing body is disposed at a position which is magnetized by a magnetic force of the magnet.