Cleaning Robot Arm with Multi-Directional Brush Orientation Switching
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Solution Overview
Problem
Existing cleaning robots are unable to effectively clean surfaces with multiple target faces facing different directions, as they lack the ability to adjust brush orientation, resulting in insufficient stain removal.
Innovation Solution
A cleaning robot with an arm that can move in three perpendicular directions and a controller that switches the orientation of the brush to suit different target faces, ensuring adequate contact and cleaning force on each surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the brush orientation is fixed in a single direction, then the device structure is simple, but the cleaning robot cannot effectively clean surfaces with multiple target faces facing different directions
Solution Approach 1:
The brush assembly is made dynamically adjustable through a multi-degree-of-freedom arm mechanism. The arm can move in horizontal direction (first direction), vertical direction (second direction), and perpendicular direction (third direction), allowing the brush to adapt its orientation to clean multiple target faces facing different directions. This dynamic adjustment capability resolves the contradiction by enabling the brush to change its configuration based on cleaning needs.
Solution Approach 2:
The invention adds multiple spatial dimensions to the brush positioning system. By introducing movement capabilities in three perpendicular directions (horizontal, vertical, and perpendicular), the system transforms a single-direction cleaning tool into a multi-dimensional cleaning system, enabling effective cleaning of surfaces facing different directions.
2Reliability
If the brush orientation cannot be switched, then the device structure is simple, but the cleaning effectiveness on stains of target faces facing different directions is insufficient
Solution Approach 1:
The arm mechanism enables dynamic orientation switching of the brush between different target faces. The controller switches the orientation of the distal end portion between orientations for cleaning different target faces, ensuring reliable cleaning effectiveness while managing structural complexity through controlled dynamic adjustment.
Solution Approach 2:
The arm mechanism serves multiple functions: it positions the brush in horizontal direction, adjusts vertical position, and orients the brush perpendicular to both previous directions. This multi-functionality enables a single device to effectively clean multiple target faces with different orientations, improving cleaning reliability.
3Ease of operation
If multiple mechanisms are added to move the arm in three perpendicular directions, then the brush can contact target faces effectively, but the device complexity increases
Solution Approach 1:
The arm mechanism is segmented into three independent movement mechanisms, each responsible for one degree of freedom (horizontal movement, vertical movement, and perpendicular movement). This segmentation allows each mechanism to be optimized for its specific function while working together to achieve comprehensive brush positioning and contact capability.
Solution Approach 2:
The system uses dynamic control of multiple mechanisms to achieve precise brush contact with target faces. The controller coordinates the three mechanisms to switch brush orientation between different target faces, ensuring ease of operation for cleaning various surfaces while managing the inherent complexity through systematic control.
Data Source
AI summary
A cleaning robot includes an arm including a distal end portion to which a brush is attached, the arm extending in a first direction parallel to a horizontal direction, a driver connected to the arm, the driver including a first mechanism that moves the arm in the first direction, a second mechanism that moves the arm in a second direction parallel to a vertical direction perpendicular to the first direction, and a third mechanism that moves the arm in a third direction perpendicular to both the first direction and second direction, a controller configured to switch the orientation of the distal end portion between an orientation for cleaning a first target face of the object and an orientation for cleaning a second target face of the object, the first target face facing the first direction, the second target face facing the second direction.