scrubber
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Solution Overview
Problem
Existing scrubbers face challenges in maintaining consistent push feeling during forward and backward operation and in efficiently managing working voltage between dual roller brushes, leading to energy inefficiency and increased consumption.
Innovation Solution
A scrubber design featuring a scrubber brush assembly with a motor-driven planetary gear mechanism and synchronous pulley system, where the first roller brush operates at a higher speed than the second, with different transmission mechanisms and reduction ratios to ensure consistent traction and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If dual roller brushes are used to improve cleaning efficiency, then cleaning speed increases, but maintaining consistent push feeling and managing working voltage becomes more complex
Solution Approach 1:
The transmission system is segmented into two independent transmission mechanisms, each with its own reduction ratio, allowing separate control of each roller brush's rotational speed. This segmentation enables the front roller brush to rotate faster than the rear roller brush, optimizing cleaning efficiency while maintaining manageable system complexity through modular design.
Solution Approach 2:
Different reduction ratios are applied locally to each transmission mechanism based on the specific cleaning requirements of different floor areas. The front roller brush receives a smaller reduction ratio for higher speed operation, while the rear roller brush receives a larger reduction ratio, creating localized optimization without requiring complete system redesign.
2Productivity
If different reduction ratios are applied to front and rear roller brushes, then cleaning efficiency improves, but transmission mechanism complexity increases
Solution Approach 1:
The transmission system is divided into two independent transmission mechanisms with different reduction ratios. The first transmission mechanism has a smaller reduction ratio for the front roller brush, while the second has a larger reduction ratio for the rear roller brush. This segmentation allows each brush to operate at optimally different speeds without requiring a completely complex integrated system.
Solution Approach 2:
Both transmission mechanisms share common components such as the motor, gearbox, and control unit, allowing the system to achieve differentiated roller brush speeds through universal components configured in two pathways. This multi-functionality approach maintains cleaning efficiency while controlling overall system complexity.
3Productivity
If both roller brushes operate at high speed, then cleaning efficiency improves, but energy consumption increases
Solution Approach 1:
Different reduction ratios are applied locally to each roller brush based on its specific cleaning function. The front roller brush uses a smaller reduction ratio for higher speed operation where more cleaning action is needed, while the rear roller brush uses a larger reduction ratio, reducing its speed and corresponding energy consumption while maintaining effective cleaning.
Solution Approach 2:
The rotational speed parameter of each roller brush is changed differently through distinct reduction ratios. The first roller brush operates at a higher speed parameter, while the second operates at a lower speed parameter, optimizing the overall energy consumption of the system while maintaining high cleaning efficiency through the faster front brush.
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 ensures a consistent user experience by maintaining equal push feeling in both directions and reduces energy consumption by optimizing the rotational speeds and traction forces of the dual roller brushes.
Implementation Method 1
The output transmission gear set includes a planetary gear mechanism, a first output gear, and a second output gear. A sun gear of the planetary gear mechanism is connected to an operating terminal of the motor.
Implementation Method 2
The first output synchronous pulley is connected to the first input synchronous pulley by the first synchronous belt in a transmission manner. The second output synchronous pulley is connected to the second input synchronous pulley by the second synchronous belt in a transmission manner.
Implementation Method 3
The first roller brush has a first rotational speed in operation. The second roller brush has a second rotational speed in operation. The first rotational speed is greater than the second rotational speed.
Data Source
AI summary
Provided is a floor washing machine. The floor washing machine includes a main body, a handle and a scrubber brush assembly. The scrubber brush assembly includes a housing having a front end and a rear end; a first roller brush disposed at the front end of the housing; a second roller brush disposed at the rear end of the housing; a motor and two transmission mechanisms. The two transmission mechanisms respectively drive the two roller brushes to operate. The first roller brush has a first rotational speed. The second roller brush has a second rotational speed. The first rotational speed is greater than the second rotational speed.