Elevator Rope Resin Coating for Structural Gap Reduction
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Solution Overview
Problem
Conventional hybrid elevator ropes have insufficient reduction of structural gaps due to bundling of synthetic fiber cores and high manufacturing costs associated with resin sleeves, particularly for long ropes with many strands.
Innovation Solution
The elevator rope design includes a fiber core surrounded by inner and outer layers of steel wire strands, with a resin coating between them, allowing for reduced structural gaps and improved packing density through a simple configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a woven fiber sleeve is disposed around the fiber core to stabilize rope shape, then rope shape stability is improved, but manufacturing time increases excessively
Solution Approach 1:
The patent extracts the stabilization function from the complex woven fiber sleeve structure and implements it through a simpler resin coating layer applied directly to the fiber core. This removes the time-consuming woven sleeve manufacturing step while maintaining the essential shape stabilization function through the resin coating that prevents structural gaps.
Solution Approach 2:
The patent replaces the expensive, time-intensive woven fiber sleeve with a simpler, more economical resin coating solution. The resin coating achieves the necessary stabilization function at lower cost and with significantly reduced manufacturing time, making it suitable for mass production of long elevator ropes.
2Stability of the object's composition
If resin sleeve is used to stabilize fiber core structure, then rope shape stability is improved, but manufacturing cost increases excessively
Solution Approach 1:
The patent replaces the expensive woven fiber sleeve with a cost-effective resin coating process. The resin coating provides necessary structural stabilization at a fraction of the cost of woven sleeves, making the manufacturing process economically viable for long elevator ropes with large numbers of strands.
Solution Approach 2:
The patent extracts the essential stabilization function from the expensive woven sleeve and implements it through a simpler resin coating system, reducing manufacturing costs while maintaining the required rope shape stability.
3Strength
If structural gaps in fiber core are not reduced, then manufacturing complexity is low, but strength-to-mass ratio is not sufficiently utilized
Solution Approach 1:
The patent applies preliminary action by coating the resin on the fiber core before assembling the complete rope structure. This preliminary resin coating compacts the fiber core and reduces structural gaps early in the manufacturing process, ensuring optimal strength-to-mass ratio utilization without adding complexity to subsequent assembly steps.
Solution Approach 2:
The patent changes the physical state and density parameters of the fiber core through resin coating. The resin fills and compacts the structural gaps in the fiber core, transforming it from a loose bundled structure to a densely packed configuration that fully utilizes the high strength-to-mass ratio properties of the synthetic fibers.
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 design effectively reduces structural gaps within the fiber core while maintaining wear resistance and strength, suitable for high-strength applications, and is cost-effective for manufacturing.
Implementation Method 1
a resin inner layer rope coating body that is coated around an outer circumference of the fiber core and a layer of the inner layer rope strands
Data Source
AI summary
In an elevator rope, an inner layer rope includes a fiber core that includes a. bundle of fibers; a plurality of inner layer rope strands that each include a plurality of steel wires are disposed around an outer circumference of the fiber core; and a resin inner layer rope coating body that is coated around an outer circumference of the fiber core and a layer of the inner layer rope strands. A plurality of outer layer strands each including a plurality of steel wires are disposed around an outer circumference of the inner layer rope coating body.