Dust suction assembly
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Solution Overview
Problem
Existing dust suction systems for electromechanical machines are inefficient, difficult to integrate into existing systems, and require high power and maintenance due to their complexity and noise, especially when trying to remove conductive dust generated by brush-friction in electromechanical machines.
Innovation Solution
A dust suction assembly with a tubular gas chamber and a suction device that allows air passage between the brush/brush holder assembly and the suction device, featuring a collection opening bordered by lips forming a narrow corridor, which uses ambient air pressure to guide dust into a suction conduit without the need for blown air, allowing for efficient dust evacuation and adaptability to various brush/brush holder sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a nozzle-type dust collection system with a central housing is used to encapsulate the brush/brush holder, then dust can be collected, but the system can only be used for a particular type of brush/brush holder and is difficult to integrate into existing machines
Solution Approach 1:
The suction device is designed with a universal gas chamber structure that can accommodate different brush/brush holder assemblies. The gas chamber forms a closed ring that surrounds the brush assembly without requiring encapsulation, allowing the same suction device to work with various brush types and sizes by simply positioning it around the brush assembly rather than building a custom housing for each type.
Solution Approach 2:
The suction device separates the gas chamber from the brush holder housing, allowing the gas chamber to be positioned independently around the brush assembly. This segmentation enables the suction function to be added to existing brush assemblies without replacing the entire brush holder structure, reducing integration complexity.
2Productivity
If a high suction power unit is used to eliminate a large part of the pollution, then dust removal effectiveness improves, but the system requires high power consumption
Solution Approach 1:
The system uses a gas chamber that allows ambient air to flow through and carry dust particles away from the brush contact surface. This pneumatic approach uses the natural flow of gas to transport dust, reducing the need for high-power suction compared to systems that rely solely on mechanical suction force.
Solution Approach 2:
The gas chamber acts as an intermediary between the brush contact surface and the suction unit. It captures dust-laden air near the source and guides it toward the suction inlet, making the suction process more efficient and reducing the power required by the suction unit to achieve the same dust removal effect.
3Productivity
If air blower ducts are used to create a gas vortex for dust capture, then suction efficiency increases, but the system becomes cumbersome and noisy
Solution Approach 1:
The invention extracts the essential function of gas vortex creation from the complex blower duct system and implements it through a simpler gas chamber structure. The gas chamber allows ambient air to naturally form vortices as it flows through the chamber and exits toward the suction unit, eliminating the need for separate blower units and multiple duct connections while maintaining suction efficiency.
4Productivity
If air blower ducts with multiple connections are used to create gas vortex, then dust capture improves, but installation becomes difficult and maintenance time increases
Solution Approach 1:
The suction device merges the gas chamber, collection opening, and suction duct connection into a single integrated unit that attaches to the brush holder assembly as one component. This eliminates the need for multiple separate duct connections and simplifies both installation and maintenance, as the entire dust collection function can be installed or serviced by attaching or removing a single unit rather than connecting multiple ducts.
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 solution achieves high dust evacuation efficiency with reduced power requirements and simplified installation, allowing for effective dust removal without encapsulating the brush/brush holder assembly, thus minimizing downtime and maintenance costs.
Implementation Method 1
The suction device delimiting an internal opening adapted to receive the end of the brush/brush holder assembly and comprising at least one suction duct intended to connect said at least one gas chamber to a suction unit
Data Source
Figure 1~2
Figure 3
AI summary
The present invention relates to an assembly (10) for the suction of dust generated by the friction of one end of a broom on a collector (20) at a contact surface, comprising at least one suction device (1) and a broom/broom holder assembly (6), said suction device (1) being notable in that it delimits an internal opening (3) adapted to receive the end of the assembly (6) as well as to allow gas passage between said broom/broom holder assembly (6) and said suction device (1), and in that it comprises at least: - a gas chamber (2) delimited by a tubular wall (2a) and extending along a plane so as to form a closed ring of generally circular, ovoid or polygonal shape, said ring delimiting the internal opening (3), - a collection opening (4) extending longitudinally on a part of the tubular wall (2a) intended to face the collector (20),said collection opening (4) being bordered by at least one lip (4a, 4b) extending from the gas chamber (2) towards the inner opening (3) so as to form a narrow corridor, - a suction duct (5) intended to connect said at least one gas chamber (2) to a suction unit.