Dish Brush with Demountable Segmental Plates to Reduce Material Waste
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Solution Overview
Problem
Existing dish brushes for sweeping machines are cumbersome to maintain and costly due to complex constructions that require complete disassembly for replacing brush elements, leading to inefficient use of materials and increased transportation costs.
Innovation Solution
A demountable dish brush with a central polygonal base plate featuring I-shaped radial profiles and demountable segmental plate elements with trapezium surfaces, locked by a single screw, allowing for easy replacement and reuse of the central base plate, reducing material waste and transportation volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If brush plugs are welded to the central plate, then the brush structure is simple and strong, but the entire brush must be discarded when plugs wear out, increasing material waste and transportation costs
Solution Approach 1:
The brush plug is divided into two separable parts: the central plate base and the brush element portion. The brush element can be detached from the central plate when worn, allowing the central plate to be reused while only the consumable brush element is discarded. This segmentation resolves the contradiction by maintaining structural strength through the reusable central plate while reducing material waste through selective replacement of only the worn brush elements.
2Device complexity
If brush plugs are welded to the central plate, then the brush structure is simple, but the entire dish brush must be transported when plugs need replacement, increasing transportation volume and costs
Solution Approach 1:
The brush system is segmented into a reusable central plate and replaceable brush elements. When brush plugs wear out, only the small brush element portions need to be transported for replacement, not the entire large dish brush assembly. This maintains construction simplicity while dramatically reducing transportation volume and associated costs.
3Ease of repair
If a complicated ring element construction is used with sliding movement, then brush elements can be replaced individually, but the mounting process becomes time-consuming and the construction cost increases
Solution Approach 1:
The brush plug is segmented into a central plate base and a brush element portion that can be independently replaced. The simplified connection interface allows brush elements to be quickly mounted and demounted without complex sliding mechanisms or multiple fasteners, reducing mounting time while maintaining ease of repair.
Solution Approach 2:
The connection interface between the brush element and central plate is designed with localized features (such as specific geometric shapes or engagement points) that enable quick identification and assembly. This local optimization of the connection quality allows for rapid replacement without requiring complex overall construction.
Data Source
AI summary
A dish brush for conventional sweeping machines has a polygonal central base plate and trapezoidal demountable or removable segmental plates each provided with multiple brush plugs. I-shaped radial profiles are equispaced about the periphery of the base plate, are welded to apices thereof, and have respective axes radially directed toward a center of the base plate. The central base plate has contour edge plates 4 fixed to a planar center portion via two of the I-shaped radial profiles and inclined at an angle relative to the planar center portion. The demountable segmental plates are each slidable to mount between two I-shaped profiles and are each bolted to a respective one of the contour edge plates.