Wedge Rope Lifting Tool for Belt-Shaped Elevator Ropes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for installing elevator ropes, particularly belt-shaped ropes with uneven surface patterns, face challenges in lifting without damaging the internal or surface structures, as they often require sharp bending or compression, which can lead to deformation.
Innovation Solution
A rope lifting tool with a wedge-shaped design featuring an upright plate and inclined plate, along with wedge members, that gently yet firmly clamps the ropes using a wedge-shaped space with adjustable gaps, allowing for even surface pattern matching and preventing bending, thus accommodating fragile or rigid ropes with uneven surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If simple lifting devices are used to lift belt-shaped ropes, then the lifting process becomes easier and more efficient, but the internal structures or surface structures of the ropes may be damaged
Solution Approach 1:
The lifting device features an upright plate with a surface pattern that locally matches the rope's surface pattern, creating a customized contact interface. This local quality matching allows the device to engage the rope without causing damage to its surface structures while maintaining ease of operation
Solution Approach 2:
The upright plate acts as an intermediary between the lifting mechanism and the rope. Its surface pattern serves as a mediator that distributes contact forces evenly across the rope's surface, preventing concentration of stress that could damage internal or surface structures while still enabling firm engagement for lifting
2Ease of manufacture
If conventional lifting methods are used, then the installation process is simpler, but belt-shaped ropes with uneven surface patterns cannot be engaged without causing deformation
Solution Approach 1:
The upright plate is provided with a surface pattern that locally corresponds to the rope's uneven surface pattern. This local quality adaptation allows the lifting device to engage the rope without deforming its surface structure, achieving both ease of installation and preservation of surface integrity
Solution Approach 2:
The device changes the contact surface parameters of the upright plate to match the rope's surface pattern. By adjusting the surface characteristics of the contact area, the device can engage various types of belt-shaped ropes without causing deformation while maintaining simple installation procedures
3Strength
If round cross-section metal wire ropes are lifted using traditional hoisting devices, then the ropes can be engaged firmly, but this method is not suitable for belt-shaped ropes with fragile or rigid internal elements
Solution Approach 1:
The lifting device with the patterned upright plate is designed to be universal, capable of engaging both round cross-section metal wire ropes and belt-shaped ropes with various surface patterns. The device maintains firm engagement for all rope types while adapting to their specific structural characteristics, including those with fragile or rigid internal elements
Solution Approach 2:
The upright plate's surface pattern provides localized adaptation to different rope types. By matching the contact surface characteristics to the specific rope being lifted, the device achieves firm engagement without causing damage, making it suitable for diverse rope types including those with sensitive internal structures
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
Enables reliable and controlled lifting of multiple belt-shaped ropes without causing deformation, ensuring the tool is easy to use and manufacture, and suitable for ropes with complex surface patterns, ensuring efficient installation within elevator hoistways.
Implementation Method 1
an upright plate and an inclined plate at an acute angle relative to the upright plate. The upright plate and the inclined plate have a wedge shaped space between them, and the rope lifting tool further comprises a plurality of wedge members placed adjacent each other inside the wedge-shaped space
Data Source
AI summary
A rope lifting tool for belt-shaped ropes provided with an uneven surface pattern on one or both of its opposing wide sides, includes a first guide for guiding the rope lifting tool along a first guide rail; a second guide for guiding the rope lifting tool along a second guide rail; an upright plate, and an inclined plate at an acute angle relative to the upright plate, the upright plate and the inclined plate having a wedge shaped space between them; and a plurality of wedge members placed adjacent each other inside the wedge-shaped space. A rope gap for receiving an end of a belt-shaped rope is formed between each wedge member and the upright plate, which rope gap is narrowable by wedging of the wedge member in the wedge shaped space. A rope lifting arrangement includes the rope lifting tool. Each rope gap is delimited by a vertical face of a wedge member and a vertical face of the upright plate or a vertical face of a liner attached thereon, and the vertical face of the wedge member and/or the vertical face of the liner is provided with an uneven surface pattern forming a counterpart for the uneven surface pattern of the belt-shaped rope.