Street Sweeper Roller Brush Coupling for Multiple Shaft Geometries
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Solution Overview
Problem
Existing street sweeping machines require brand-specific spare parts due to varying shaft geometries, necessitating separate supplies for different models, which is inefficient and costly.
Innovation Solution
A universal coupling device for roller brushes with modular design, featuring indentations and projections/tabs, and adapting pieces to fit various shaft geometries, allowing standardization of spare parts across different machine models.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If brand-specific spare parts are supplied for different shaft geometries, then each machine model can be maintained with its original design, but the complexity of spare part supply increases and costs rise
Solution Approach 1:
The brush support body is designed with a universal coupling interface that can accommodate multiple shaft geometries (round, square, triangular) through a single standardized structure. The body includes a hollow cylindrical interior with a coupling means featuring notches and protrusions that can adapt to different shaft shapes, eliminating the need for brand-specific spare parts while maintaining reliable coupling for each machine model
2Adaptability or versatility
If a universal brush support body is designed to fit multiple shaft geometries, then spare part standardization is achieved and costs are reduced, but the coupling mechanism becomes more complex
Solution Approach 1:
The coupling mechanism features a nested structure where the hollow cylindrical interior of the brush support body contains the coupling means with notches and protrusions. The adapting pieces are inserted into the hollow interior, and the coupling elements are integrated within the body structure, creating a compact nested arrangement that achieves versatility without excessive complexity
Solution Approach 2:
Adapting pieces serve as intermediary elements between the universal brush support body and different shaft geometries. These adapting pieces can be inserted into the hollow interior and coupled to various shaft shapes, mediating the connection between the standardized body and diverse shaft types while keeping the main body design simple
Data Source
AI summary
The present invention relates to a support roller of bristles that is formed by a single body or modular body, wherein said roller has an interior hollow with a substantially circular cross section. The interior hollow (2) of the cross section of the body of the brush (1) is provided with a set of coupling notches (3) for coupling a shaft with a cross section greater than the nominal diameter of said interior hollow (2). The interior hollow (2) in turn comprises a set of pairs of projections or tabs (4) respectively forming housings (5) for securing a piece adapting to shafts with smaller dimensions than those of the hollow of the brush.