Diverting Pulley Adapter for Elevator Rope Path Maintenance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing elevator systems face challenges in modernizing to accommodate different suspension means, such as changing from thicker to thinner ropes or belts, as altering the pulley diameter affects the suspension path, leading to costly and complex adjustments that disrupt the tension and require structural reinforcement, often resulting in increased downtime and safety concerns.
Innovation Solution
A diverting pulley adapter with a base and multiple rotatable pulleys, allowing independent adjustment of the distance between the suspension means' entry and exit points, enabling the maintenance of the original suspension path while accommodating different diameter pulleys, by positioning and fixing the pulleys symmetrically relative to a common base.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the pulley diameter is changed to accommodate different suspension means, then the adaptability is improved, but the suspension path is altered causing tension changes and requiring structural reinforcement
Solution Approach 1:
The pulley adapter employs adjustable positioning mechanisms that allow the pulley diameter and position to be dynamically modified. This enables the system to adapt to different suspension means while maintaining the correct suspension path geometry, resolving the contradiction between adaptability and path stability.
Solution Approach 2:
The invention changes key geometric parameters (pulley diameter, position, orientation) through adjustable components and positioning mechanisms. By allowing these parameters to be modified without altering the suspension path, the system achieves adaptability to different ropes or belts while maintaining tension stability and eliminating the need for structural reinforcement.
2Reliability
If the pulley position is adjusted to maintain suspension path, then the suspension path stability is improved, but the device complexity increases
Solution Approach 1:
The pulley adapter is divided into separate functional modules: positioning mechanisms, adjustable components, and mounting structures. This segmentation allows each component to perform its specific function independently, maintaining suspension path stability without requiring an overly complex integrated structure.
Solution Approach 2:
The pulley adapter is designed as a universal component that can accommodate multiple types of suspension means (ropes, belts) with different diameters. By integrating multiple functions (positioning, diameter adjustment, orientation control) into a single adapter unit, the design achieves path stability without proportionally increasing overall device complexity.
3Loss of time
If existing infrastructure is used for modernization, then the loss of time is reduced, but the adaptability to new suspension means is limited
Solution Approach 1:
The pulley adapter serves as an intermediary component between the existing fixed infrastructure and the new suspension means. It interfaces with the existing mounting structure while providing adjustable mechanisms to accommodate different rope or belt diameters, enabling modernization without infrastructure changes while maintaining full adaptability.
Solution Approach 2:
The adapter is pre-configured with adjustable mechanisms and positioning features that allow it to accommodate various suspension means before installation. This preliminary preparation enables quick adaptation to different ropes or belts during modernization, reducing downtime while maintaining versatility.
Data Source
AI summary
A diverting pulley adapter is provided for converting an existing pulley, the adapter enabling a maintenance of an existing running path for diverting a suspension, like an elevator-rope or an elevator-belt, the adapter having a base with at least one fixing component for anchoring the adapter, at which base a set of pulleys is provided. The adapter includes a first deflection pulley being mounted rotatable on its rotation axis, and at least a further second deflection pulley being mounted rotatable on its rotation axis, wherein the rotation axes of the pulleys are interspaced, respectively. The positions of those pulleys forming the set of pulleys are adjustable in view of their fixation, respectively, and symmetrically in relation to the fixing component.