Disc Broom Flexible Shell Design to Reduce Dust Dispersion
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Solution Overview
Problem
Disc brooms in floor cleaning machines tend to swirl up dust when rotating, causing it to float and settle elsewhere, especially with high dust content materials.
Innovation Solution
A disc broom design featuring a base body with bristles and a flexible cover element made from a material like natural rubber, where the bristles are inclined and enveloped by a conical shell that reduces air flow and minimizes dust whirlwind formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the disc broom rotates to convey swept material, then the sweeping function is improved, but dust is whirled up and dispersed
Solution Approach 1:
The patent applies a flexible cover element made of elastomeric material that envelops the bristles during rotation. This flexible shell contains the bristles and reduces air flow through the rotating disc broom, thereby preventing dust from being whirled up while allowing the sweeping function to operate effectively
Solution Approach 2:
The cover element is designed to pre-emptively counteract the harmful air flow that would otherwise be generated by the rotating bristles. By enveloping the bristles before rotation occurs, the structure prevents the formation of strong air currents that cause dust dispersion
2Productivity
If air flow moves through the rotating bristles, then material is conveyed, but dust floats and settles elsewhere
Solution Approach 1:
The flexible cover element envelops the bristles and reduces excessive air flow through the rotating disc broom. This containment maintains sufficient air flow for material conveyance while preventing dust from floating and settling elsewhere, thereby improving collection efficiency
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 design effectively reduces the whirling up of swept material, minimizing dust dispersion and improving the collection efficiency by inhibiting air flow around the bristles during rotation.
Implementation Method 1
The shell envelopes the bristles perpendicularly to the rotation axis such that the bristles are disposed in the interior of the shell... effectively reduces the whirling up of swept material, minimizing dust dispersion and improving the collection efficiency by inhibiting air flow around the bristles during rotation
Data Source
AI summary
A floor cleaning machine that includes a disc broom that is rotatable about a rotation axis. The disc broom has a base body, bristles and a cover element. The base body has a circumferential outer edge. The bristles are attached at one end to the base body and extend away from the base body towards a sweeping plane that is perpendicular to the rotation axis. The cover element has a shell that is made of a flexible material. The shell extends away from the base body and towards the sweeping plane. The shell has an inner side, which faces an interior of the shell, and an outer side that faces an exterior of the shell. The shell envelopes the bristles perpendicularly to the rotation axis such that the bristles are disposed in the interior of the shell. A related disc broom and sweeping device are also provided.