Sliding Shroud Coupling for Compact Slurry Extraction
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Solution Overview
Problem
Existing extraction apparatuses for machines used in masonry operations, such as cutting and chasing, face challenges in containing and collecting slurry effectively due to the need for flexible tube connections that occupy space and are not compact, especially when the shroud must swivel to accommodate varying angular positions.
Innovation Solution
A slidable coupling system between two portions of the extraction apparatus allows for angular movement while maintaining fluid communication, enabling the containment and collection of slurry and debris, with a telescopic design that accommodates swiveling motion without the need for a separate flexible tube, providing a compact and efficient solution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a flexible tube section is used to connect the shroud and suction line to accommodate swiveling movement, then the shroud can swivel to maintain alignment with the surface, but the flexible tube occupies space and is not compact
Solution Approach 1:
The patent merges the connection function and the swiveling accommodation function into a single integrated telescopic coupling mechanism. The telescopic coupling comprises a body portion and a cap portion that can slide relative to each other, eliminating the need for a separate flexible tube while still accommodating the swiveling movement of the shroud.
Solution Approach 2:
The telescopic coupling is designed to be dynamic, allowing the cap portion to slide extendably relative to the body portion. This dynamic structure enables the coupling to adjust its length and accommodate the swiveling movement of the shroud, providing both adaptability and compactness.
2Adaptability or versatility
If the shroud is mounted for swiveling movement to accommodate variation in angular position, then the machine can maintain correct alignment with the surface, but the connection structure becomes more complex
Solution Approach 1:
The telescopic coupling integrates multiple functions into a single structure: it provides the connection between the shroud and suction line, accommodates swiveling movement, and maintains fluid communication. This merging of functions reduces the overall complexity compared to using separate components for each function.
Solution Approach 2:
The telescopic coupling serves multiple purposes: it acts as a connection element, a swiveling accommodation mechanism, and a fluid passage. This multi-functionality reduces the number of separate components needed, thereby simplifying the overall connection structure.
3Adaptability or versatility
If a flexible tube of sufficient length is used to provide surplus portion for accommodating full extent of swiveling movement, then the shroud can swivel through full range of motion, but the surplus portion flexes and occupies space adjacent the shroud
Solution Approach 1:
The telescopic coupling employs a dynamic sliding mechanism where the cap portion can extend relative to the body portion. This dynamic structure allows the coupling to accommodate the full range of swiveling motion without requiring a long flexible tube, as the telescopic action provides the necessary movement range in a compact manner.
Solution Approach 2:
The telescopic coupling features a nested structure where the cap portion is received within the body portion and can slide in and out. This nesting arrangement allows the coupling to compactly store the movement range needed for full swiveling motion without occupying excess space when not in use.
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 solution effectively contains and collects slurry and debris during masonry operations, maintaining a clean and safe environment while allowing for flexible movement of the machine, enhancing operational efficiency and reducing space occupation.
Implementation Method 1
the first and second portions being configured for fluid communication during said angular movement between the two opposed positions whereby fluid can flow from the interior of the first portion into the second portion
Data Source
AI summary
An extraction apparatus (20) for a cutting machine (10). The extraction apparatus (20) comprises first and second portions (21, 22) rotatable one relative to the other for angular movement between two opposed positions. A slidable coupling (27) defines a fluid flow path (29) for fluid communication between the first and second portions (21, 22) during said angular movement between the two opposed positions, whereby fluid can flow from the interior (45) of the first portion (21) into the second portion (22). The slidable coupling (27) comprises first and second coupling sections (61, 62) slidable one with respect to the other. The second coupling section (62) is hollow to define an open interior (63). The first coupling section (61) defines a duct (65) opening onto the interior (63) of the second coupling section (62), whereby the duct (65) and the interior (63) of the second coupling section (62) cooperate to define the fluid flow path (29).