Hoisting Rope Control via Force Detection
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Solution Overview
Problem
In hoisting devices, manually fixing a load to the hoisting rope can be challenging due to difficulties in precisely controlling the rope's end height, leading to safety risks and unsuccessful fastening, especially when the operator's attention is focused on a remote controller.
Innovation Solution
A method and system that detect external vertical forces acting on the hoisting rope, allowing the operator to control the rope's movement by displacing the load fastening means, such as a hook, without an external controller, using sensors like strain gauges or pressure sensors to adjust the rope's position intuitively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a remote controller is used to control the hoisting rope, then the operator can control the device from a distance, but the operator's attention is focused on the controller which may lead to safety risks and imprecise positioning
Solution Approach 1:
The hoisting rope itself becomes the control interface. When the operator pulls or releases the rope, the force sensor detects this action and automatically translates it into hoisting or lowering commands, eliminating the need for a separate remote controller and allowing the operator to maintain visual attention on the work area
Solution Approach 2:
The mechanical remote control system is replaced with a force-sensitive system where strain gauges or pressure sensors detect physical forces applied to the hoisting rope, converting mechanical input directly into control signals for automated operation
2Manufacturing precision
If the end of the hoisting rope is left too high or too low, then the fastening of the load becomes unsuccessful, but precise control is difficult to achieve
Solution Approach 1:
The force sensor provides real-time feedback to the control unit about the operator's pulling or releasing actions on the hoisting rope, enabling precise control of the hoisting mechanism to achieve accurate rope positioning for successful load fastening
Solution Approach 2:
The force sensor acts as an intermediary between the operator's physical action on the rope and the control unit, translating subtle force variations into precise control commands that achieve accurate positioning without complex control mechanisms
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
This approach enables precise and safe positioning of the hoisting rope without the need for an external controller, improving user interface and safety by allowing operators to control the hoisting device directly through the load fastening means, ensuring accurate height adjustment and reducing the risk of accidents.
Implementation Method 1
sensors like strain gauges or pressure sensors
Implementation Method 2
sensors like strain gauges or pressure sensors
Data Source
AI summary
A device in connection with a hoisting rope of a hoisting device includes a main suspension element to suspend a sheave or wedge socket supporting the hoisting rope to a fastening structure of a body of the hoisting device and a detector for detecting an external vertical force acting on the hoisting rope.