Sheave Assembly Safety Net for Hauling Cable Support
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Solution Overview
Problem
Existing vehicle transportation installations with sheave assemblies require frequent dismantling for inspection and replacement of worn parts, and are prone to collapse if the rotation axis fails, leading to operational disruptions.
Innovation Solution
A supporting and guiding device for hauling cables with a sheave and pivotally movable girders, featuring recovery and cooperating elements that allow the girders to swivel and maintain support even if the main axis fails, enabling continued operation and limiting the need for immediate disassembly for inspection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the sheave assembly uses a main axis to pivotally support the second girder, then the device achieves stable support and guiding of the hauling cable, but the rotation axis is prone to failure such as wear or breaking
Solution Approach 1:
The patent implements a safety net comprising recovery elements and cooperating elements that are pre-positioned to catch the second girder in case of main axis failure. This beforehand cushioning mechanism prevents catastrophic collapse by providing a predetermined safety catch system that activates only when the main axis fails, thus maintaining stability while addressing the reliability concern of the rotation axis.
2Productivity
If the rotation axis is subject to wear and breaking, then the device can operate continuously, but the sheave assembly requires frequent dismantling for inspection and replacement
Solution Approach 1:
The patent divides the sheave assembly into separable components, specifically making the second girder detachable from the first girder. The safety net elements are designed to allow the second girder to be easily removed and inspected independently, enabling maintenance personnel to access and inspect the rotation axis without dismantling the entire sheave assembly, thus improving ease of repair while maintaining continuous operation capability.
Solution Approach 2:
The patent introduces the safety net elements (recovery elements and cooperating elements) as intermediary components that facilitate the inspection and replacement of the rotation axis. These elements act as mediators by providing a controlled mechanism to safely support the second girder during maintenance operations, making the inspection process easier and less disruptive to continuous operation.
3Reliability
If the main axis breaks, then the second girder is no longer supported and may fall, but the safety net elements prevent collapse by catching the second girder
Solution Approach 1:
The patent implements a safety net comprising recovery elements and cooperating elements that are pre-positioned to catch the second girder in case of main axis failure. This beforehand cushioning mechanism prevents catastrophic collapse by providing a predetermined safety catch system that activates only when the main axis fails, thus maintaining stability while addressing the reliability concern of the rotation axis.
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 device prevents collapse of the sheave assembly in case of main axis failure, allowing for continued operation and reducing the frequency of disassembly for inspection, thereby extending the operational time before repair is necessary.
Implementation Method 1
a second girder (9 to 14) supporting the sheave (3) and mounted pivotally movable around the main axis (15 to 25)
Data Source
AI summary
Device for supporting and guiding a hauling cable of a vehicle transportation installation by cable, including a sheave configured for supporting and guiding the hauling cable, a first girder provided with a main axis, a second girder supporting the sheave and mounted pivotally movable around the main axis, at least one recovery element mounted on the first girder, and at least one cooperating element mounted on the second girder at a distance from said at least one recovery element in a normal operating state where the second girder swivels around the main axis, and configured to be in contact with said at least one recovery element in an abnormal operating state corresponding to failure of the main axis.