Suction Head Perforated Support Ring for Bearing Cooling
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Solution Overview
Problem
Existing suction heads with rotating brushes experience bearing overheating due to the proximity of the drive motor, which can compromise the reliability and performance of the suction head.
Innovation Solution
The suction head incorporates a support ring with through holes that allow an air stream to flow through, providing cooling by heat conduction to the brush bearing and drive motor, thereby reducing bearing temperature and enhancing reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the drive motor is positioned close to the brush body for compact design, then the radial size of the rotating brush is reduced, but the bearing temperature increases due to heat from the motor
Solution Approach 1:
The support ring is designed with through-holes forming a porous structure that allows air to pass through. This porous configuration enables the air stream to directly cool the bearing that is in contact with the support ring, while maintaining the compact positioning of the drive motor near the brush body.
Solution Approach 2:
The invention uses pneumatic cooling by directing an air stream through the through-holes in the support ring. The air flow is utilized to remove heat from the bearing and drive motor, solving the overheating problem caused by the compact motor positioning without requiring additional cooling systems.
2Device complexity
If the bearing is positioned near the drive motor for compact structure, then the overall device size is reduced, but the reliability decreases due to overheating of the bearing
Solution Approach 1:
The support ring with through-holes serves a dual function: it provides structural support for the brush body and simultaneously acts as a cooling device. The air stream passing through the support ring automatically cools the bearing without requiring separate cooling mechanisms, making the system self-sufficient.
Solution Approach 2:
The support ring is designed to perform multiple functions: mechanical support of the brush body, structural connection between components, and heat dissipation through the through-holes. This multi-functionality maintains structural compactness while ensuring bearing reliability through effective cooling.
3Temperature
If standard cooling methods are used for the bearing, then the bearing temperature is controlled, but the device structure becomes more complex and expensive
Solution Approach 1:
The cooling function is merged with the structural support ring. The through-holes that are part of the support ring's basic structure also serve as cooling channels, eliminating the need for separate cooling systems and reducing overall device complexity while maintaining effective bearing temperature control.
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 cools the bearing and drive motor, improving the reliability and longevity of the suction head while allowing for the use of smaller bearings, thus reducing the radial size of the rotating brush.
Implementation Method 1
cooling, by heat conduction, of the support ring and of the bearing located near the drive motor
Data Source
AI summary
The suction head comprises a main body (4); a rotating brush (11) comprising a brush body (12); a drive motor (17) housed in a motor housing (21) delimited by the brush body (12) and configured to drive in rotation the brush body (12) about an axis of rotation; a bearing support (31) fixed relative to the main body (4); a bearing (28) mounted on the bearing support (31); and a support ring (26) interposed between the bearing (28) and an inner circumferential surface of the brush body (12) and including at least one through hole (44) through which an air stream is capable of flowing.