Self-Cleaning Filter Gearbox Torque Optimization
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Solution Overview
Problem
Current self-cleaning filters face issues with torque limitations during cleaning, leading to clogging, excessive wear, and reduced maintenance due to motor dependency, inadequate surface coverage, and high water loss, as well as potential damage from excessive rotation speeds.
Innovation Solution
A self-cleaning filter design incorporating a gearbox to increase torque on the rotation shaft, allowing for slower rotation speeds and improved surface coverage without external motors, featuring a mechanical fuse for protection and non-metallic gear materials to manage high reduction ratios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the propeller is directly coupled to the rotation shaft, then the structure is simple, but the torque is insufficient to overcome static friction during cleaning
Solution Approach 1:
A gearbox is introduced as an intermediary device between the propeller and the rotation shaft. The gearbox receives rotational motion from the propeller and transforms it into higher torque rotational motion for the brushes, enabling the brushes to overcome static friction and effectively clean the filter surface.
Solution Approach 2:
The system dynamically adjusts the torque multiplication ratio through the gearbox based on operating conditions. The gearbox provides variable torque multiplication to ensure sufficient cleaning force while preventing excessive speed that could damage components, allowing the system to adapt to different soiling levels.
2Productivity
If the rotation shaft speed is increased to improve cleaning performance, then cleaning efficiency improves, but wear of brushes and support elements increases
Solution Approach 1:
The gearbox provides dynamic speed reduction and torque multiplication, allowing the system to operate at optimal speeds for different cleaning conditions. This prevents excessive rotation speeds that would cause brush wear while maintaining sufficient cleaning efficiency.
Solution Approach 2:
The system changes the operational parameters by transforming the high-speed, low-torque motion from the propeller into low-speed, high-torque motion for the brushes. This parameter transformation optimizes both cleaning performance and component longevity.
3Force
If the propeller is used to drive the brushes directly, then energy consumption is low, but the brushes become stuck due to insufficient torque
Solution Approach 1:
The gearbox acts as an energy-transmitting intermediary that converts the rotational energy from the propeller into effective cleaning torque. It ensures that sufficient energy is delivered to the brushes to overcome static friction without requiring excessive energy input from the propeller.
4Productivity
If the rotation shaft rotates at high speed, then cleaning coverage is improved, but damage to support elements like bushings or bearings occurs
Solution Approach 1:
The gearbox provides dynamic speed control, reducing the rotation speed of the brushes to safe levels while maintaining sufficient cleaning coverage. This prevents damage to support elements such as bushings or bearings that would occur at excessive speeds.
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
Enhances cleaning efficiency, reduces maintenance and water loss, extends equipment life, and ensures continuous production by optimizing torque and rotation speed, while minimizing wear and energy consumption.
Implementation Method 1
a propeller which, at the time of washing, is activated by the movement of a portion of the fluid stream wherein the self-cleaning filter is submerged, causing the propeller to rotate
Implementation Method 2
a gearbox immersed in the liquid that incorporates an input shaft connected to the propeller shaft and an output shaft connected to the rotation shaft, such that the direct coupling between the rotation shaft and the propeller is removed
Implementation Method 3
a rotation shaft that incorporates brushes formed by blades ending in bristles that make contact with the inner surface of the filtering element in order to eliminate dirt that may have become incrusted
Data Source
Figure 1A~2B
Figure 3A~3B
Figure 4
AI summary
The invention relates to an optimised self-cleaning filter which incorporates a filtering element (10) and comprises a rotation shaft (5) with a series of solidly attached brushes (9) for cleaning an inner surface of the filtering element (10), the rotation shaft (5) being attached to the shaft of a propeller (8) that is activated with a fluid stream, wherein the self-cleaning filter comprises a gearbox (1a, 1b) with an input shaft (2) attached to the shaft of the propeller (8) and an output shaft (3) attached to the rotation shaft (5).