Rotor for a cleaning machine
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Solution Overview
Problem
Existing rotor designs for cleaning machines suffer from reduced water flow rates and inefficient cleaning due to cylindrical boreholes and unworked outlet openings, which limit the effectiveness of water jets in cleaning and rinsing processes.
Innovation Solution
The rotor features asymmetrically arranged boreholes on its legs, with elliptical boreholes facing upwards and circular boreholes facing downwards, optimized for vertical jet direction and enhanced flow rates, allowing comprehensive cleaning and self-cleaning of machine surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If boreholes are made by drilling only without working the outlet opening, then manufacturing is simpler, but the flow rate of the water jet is reduced
Solution Approach 1:
The outlet opening of the borehole is pre-formed with an elliptical cross-section during the manufacturing process, rather than being a simple cylindrical hole. This preliminary shaping action ensures that the water jet has a larger cross-sectional area from the start, increasing flow rate while maintaining manufacturing simplicity through a single-forming operation.
Solution Approach 2:
The geometric parameters of the borehole outlet are changed from a circular cross-section to an elliptical cross-section. This parameter change increases the outlet area and optimizes the water jet flow characteristics, allowing higher flow rates without complicating the manufacturing process.
2Ease of manufacture
If cylindrical boreholes are used, then manufacturing is easier, but the contact surface area of water jets is reduced leading to inefficient cleaning
Solution Approach 1:
The borehole outlet is pre-shaped with an elliptical cross-section during manufacturing, creating a water jet with inherently larger contact surface area. This preliminary geometric configuration ensures efficient cleaning performance without requiring additional manufacturing steps or complex tooling.
Solution Approach 2:
The cross-sectional geometry of the borehole outlet is changed from circular to elliptical. This parameter modification increases the surface area of the water jet, improving its ability to contact and clean surfaces effectively, while the manufacturing process remains simple and straightforward.
3Ease of manufacture
If boreholes are arranged symmetrically, then manufacturing alignment is easier, but comprehensive cleaning coverage is reduced
Solution Approach 1:
The boreholes are arranged asymmetrically on the rotor legs, with different orientations and positions that complement each other during rotation. This asymmetric configuration ensures that water jets from multiple boreholes cover different areas and angles, providing comprehensive cleaning coverage of the chamber while maintaining relatively simple manufacturing alignment.
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 ensures thorough cleaning and efficient rinsing by maximizing the contact surface area and flow rate of water jets, improving the overall performance of the cleaning machine.
Implementation Method 1
rotor for a cleaning machine that is used for spraying objects arranged in baskets or directly in the interior of a cleaning machine... rotors are arranged in chambers of cleaning machines... rotor rotation, said solution has a different angle of water jets every 180°
Data Source
Figure 1
Figure 2~4
Figure 5~6
AI summary
The rotor of the invention has two legs (2, 3) fastened to a rotary base (1), wherein the legs (2, 3) are provided with asymmetrically arranged boreholes (4) facing upwards and boreholes (5) facing downwards, wherein the boreholes (4) facing upwards have the shape of an ellipse, while the boreholes (5) facing downwards have a circular shape. The boreholes (4) facing upwards and the boreholes (5) facing downwards are formed, such that the jets from the boreholes (4) facing upwards act vertically upwards and the jects from the boreholes (5) facing downwards act vertically downwards, i. e. in a direction 90° with respect to the axis of the legs (2, 3).