Segmented Brush Roller Carrier Ring Assembly
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Solution Overview
Problem
The existing brush units for centrifugal blasting systems are difficult to assemble and disassemble due to screw connections that are challenging in cramped and dusty environments, requiring multiple people and causing issues with stuck connections and heavy segments.
Innovation Solution
A brush unit with a plug-in connection using pin or rod elements aligned parallel to the central axis, allowing for easy assembly and disassembly with a snap-in mechanism and reduced weight through plastic carrier ring segments, facilitating single-person operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If screw connections are used to join brush unit parts, then the connection strength is sufficient, but the assembly and disassembly process becomes difficult and time-consuming in cramped and dusty environments
Solution Approach 1:
The brush unit is divided into multiple segments (first and second parts) that can be easily separated. The carrier ring is segmented into sections that can be independently removed, allowing the brush unit to be disassembled into manageable pieces for easy handling in confined spaces.
Solution Approach 2:
The connecting elements are designed to be extractable from the brush unit structure. The pins can be removed from the connecting elements to separate the brush unit parts, and the connecting elements themselves can be taken out and stored separately, simplifying the disassembly process.
2Strength
If solid segments are used for the brush unit, then the structural strength is sufficient, but the weight becomes very high making single-person handling impossible
Solution Approach 1:
The brush unit is divided into multiple lightweight segments connected by pins and connecting elements. This segmentation allows each part to be much lighter than a solid equivalent, enabling single-person handling while maintaining overall structural strength through the pinned connections.
Solution Approach 2:
The brush unit combines different materials (metal pins, plastic or metal carrier rings, bristle elements) to achieve optimal strength-to-weight ratio. The connecting elements use materials that provide sufficient strength while minimizing weight.
3Ease of repair
If the entire brush roller is removed to change brush units, then the brush unit replacement is possible, but the process becomes time-consuming and complex in confined spaces
Solution Approach 1:
The brush unit is designed as a self-contained segmented module that can be independently removed from the brush roller without affecting the entire roller structure. The carrier ring segments can be detached and the brush unit replaced as a modular assembly.
Solution Approach 2:
The brush unit can be extracted from the brush roller as a separate component. The connecting elements allow the brush unit to be pulled out and removed without disassembling the entire roller, enabling quick replacement in confined spaces.
4Stability of the object's composition
If the brush unit is made as a single solid piece, then the structural integrity is maintained, but the assembly requires multiple people and is difficult to position in confined spaces
Solution Approach 1:
The brush unit is divided into multiple parts (carrier ring segments, bristle elements, connecting elements) that are simple in individual design but combine to form a structurally sound complete unit. Each segment is easy to manufacture and assemble.
Data Source
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AI summary
In a brush unit (10) for a brush roller (100) for a centrifugal blasting system, at least two support rings (11) are provided, which are divisible into at least two support ring segments (12) and which have a plurality of outwardly opening recesses (14) on their circumference, in each of which a brush strip element (20) is inserted. The support ring segments (12) are connected via a connecting element (30) that overlaps the separation point (T). The support ring segments (12) and the connecting elements (30) attached to them have congruent connecting recesses (14; 31) and are connected by pin elements (23) inserted into the connecting recesses (14; 31).