Coupling Guard Segmentation for Rapid Installation
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Solution Overview
Problem
The existing coupling guards for machinery are cumbersome and time-consuming to install and remove due to their complex structure, which complicates the process of coupling and decoupling the drive shaft of a prime mover with the rotational shaft of a rotary machine.
Innovation Solution
A simplified coupling guard design featuring a cylindrical guard body with semicylindrical members and bilaterally symmetrical guard legs, secured by a fastening tool with bolts and nuts, allowing for easy assembly and disassembly while maintaining safety by preventing human contact with rotating parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the coupling guard is made up of many parts to ensure safety and coverage, then the safety and coverage are improved, but the installation and removal time increases significantly
Solution Approach 1:
The coupling guard is divided into an upper semicylindrical member and a lower semicylindrical member that can be separately installed and removed. This segmentation allows the guard to be assembled and disassembled quickly while still providing complete safety coverage when assembled, directly resolving the contradiction between safety reliability and installation time.
2Area of stationary object
If the coupling guard is made up of many parts to ensure proper coverage, then the coverage is improved, but the device complexity increases
Solution Approach 1:
The guard body is formed by merging the upper and lower semicylindrical members, which together create a complete cylindrical coverage area. This merging approach achieves comprehensive coverage while keeping the structure simple and the number of parts minimal, resolving the contradiction between coverage area and device complexity.
3Productivity
If the coupling guard uses a simple structure with fewer parts, then the installation and removal time is reduced, but the safety coverage may be compromised
Solution Approach 1:
The coupling guard is segmented into upper and lower semicylindrical members that can be quickly installed and removed, improving installation speed. When assembled, these segments form a complete protective cover, ensuring that safety coverage is not compromised despite the simplified structure and reduced number of parts.
Data Source
AI summary
A coupling guard for covering a coupling which couples a drive shaft of a prime mover and a rotational shaft of a rotary machine to each other. The coupling guard includes a cylindrical guard body having an upper semicylindrical member and a lower semicylindrical member coupled to the upper semicylindrical member, and a guard leg supporting the guard body. The guard body has a flange portion to which the guard leg is attached. The guard leg includes a vertical wall parallel to a central axis of the guard body, an upper wall, a bottom wall, a left-side wall, and a right-side wall which project perpendicularly outwardly from the vertical wall. The vertical wall, the upper wall, the bottom wall, the left-side wall, and the right-side wall are made of a single plate material.