Horizontal Cable Strand Winding Device
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Solution Overview
Problem
The existing technologies for winding and unwinding of long cable strands in suspension bridges face issues such as 'Hula-circles' formation, which leads to friction, damage, and inefficiency, particularly with the use of large steel reels, causing inconvenience and delays in construction.
Innovation Solution
A device and method for horizontally winding and unwinding parallel wire strands using a guiding device, rotating platform, rail flat wagon, strand winding and unwinding device, tray, transmitters, and programmable controllers, which includes a crane with a strand transfer control mechanism and hydraulic systems to manage the unwinding process, reducing friction and damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If large diameter steel reels are used for winding cable strands, then the winding and unwinding process can be performed, but 'Hula-circles' formation occurs causing friction, damage, and operational difficulties
Solution Approach 1:
The patent removes the large diameter steel reel from the system entirely. Instead, it uses a horizontal winding device with a tray that collects and organizes cable strands in a compact manner, eliminating the source of Hula-circles formation while maintaining winding and unwinding functionality.
Solution Approach 2:
The patent transitions from vertical reel winding to horizontal tray-based winding. The cable strands are wound horizontally onto a tray that can be rotated, changing the spatial dimension of the winding operation and eliminating the circular trauma formation characteristic of vertical reel processing.
2Ease of manufacture
If cable strands are wound using traditional reel processing, then winding can be performed, but transportation and unwinding become difficult due to oval traumas and friction
Solution Approach 1:
The patent extracts the problematic reel component and replaces it with a tray-based system. The tray collects cable strands in an organized manner that facilitates easy transportation and unwinding, eliminating the operational difficulties caused by oval traumas and friction associated with traditional reel processing.
3Productivity
If long cable strands are processed using reel processing, then winding can be performed, but 'Hula-circles' become more severe and difficult to remedy
Solution Approach 1:
The patent removes the reel that causes Hula-circles formation. The horizontal tray winding system processes long cable strands without creating circular traumas, maintaining cable strand integrity even for lengths over 1500 meters where traditional reel processing fails.
4Productivity
If traditional reel processing is used, then winding can be performed, but continuous operation is disrupted due to frequent stopping for tightening and reshaping
Solution Approach 1:
The patent removes the reel-based system that requires frequent interruptions for tightening and reshaping. The horizontal tray system allows continuous winding operation without disrupting cable strand arrangement, eliminating time losses associated with frequent stops for manual intervention.
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 eliminates 'Hula-circles' formation, enhances the efficiency and quality of cable strand winding and unwinding, decreases labor intensity, and increases automation, allowing for real-time monitoring and reduced transportation costs by eliminating the need for large steel reels.
Implementation Method 1
hydraulic jack fitted on the platform of supporting plate centre, one end of pushing bar is connected with knockout-pin of hydraulic jack, the other end comes into contact with internal surface of center position of supporting plate, resisting each supporting plate therefrom
Data Source
AI summary
A device and method for horizontally winding and unwinding a parallel wire strand, the device includes guiding device, rotating platform, rail flat wagon, strand winding and unwinding device, tray, several transmitters and programmable controllers, according to different mounted characteristics of winding and unwinding wire strand, the strand winding and unwinding device is divided into two structure forms, that are first inner module and second inner module; first inner module is composed of supporting plate and top drawbar, second inner module is composed of supporting plate and top drawbar, in addition knockout pin of hydraulic jack, can commendably solve “Hula-circles” problem.