Pivoting Roller Block for Multi-Conductor Pulley Installation
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Solution Overview
Problem
Existing pulley systems for overhead line construction are cumbersome to assemble on-site and do not efficiently accommodate multiple conductor ropes, posing safety risks and inefficiencies during installation or replacement.
Innovation Solution
A pulley block with a connecting device that captively connects and pivots two roller axes, allowing the block to be placed as a whole on conductors and folded into position, featuring adjustable distances between axes and multiple pulley pairs for secure attachment to multiple conductor cables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If pulley blocks are assembled from individual parts on-site, then the system can be adapted to different conductor configurations, but the assembly process becomes cumbersome and time-consuming
Solution Approach 1:
The pulley block is divided into two separable halves that can be assembled on-site around the conductor cables. Each half contains roller axes and pulleys that can be independently positioned, allowing the block to be adapted to different conductor configurations while simplifying the assembly process compared to traditional multi-part construction
Solution Approach 2:
The roller axes are designed to be pivotable relative to each other through the connecting device, allowing dynamic adjustment of the pulley block configuration to accommodate different conductor arrangements. This pivoting capability provides adaptability while maintaining ease of operation through simple mechanical movement
2Reliability
If multiple conductor ropes are managed separately, then each rope can be securely controlled, but the installation process requires separate assembly for each rope
Solution Approach 1:
Multiple pulley pairs are integrated into a single pulley block structure, allowing multiple conductor ropes to be managed simultaneously within one unified device. The connecting device merges the roller axes into a single assembly unit, reducing the complexity of installing separate assemblies for each rope while maintaining secure control through individual pulley mechanisms
Solution Approach 2:
The pulley block is designed as a multi-functional unit that can accommodate multiple conductor ropes through multiple pulley pairs, each capable of independently securing a rope. This universal design allows a single device to perform the function of multiple separate assemblies, simplifying the overall installation process
3Ease of manufacture
If pulley blocks are constructed in several parts, then they can be transported separately, but on-site assembly becomes cumbersome
Solution Approach 1:
The pulley block is segmented into two main halves that can be manufactured and transported separately, reducing logistical complexity. However, the segmentation is optimized so that the halves can be quickly connected on-site using the connecting device, minimizing assembly time while maintaining transport advantages
Solution Approach 2:
The roller axes and pulleys are pre-assembled into the two halves during manufacturing, with connecting features prepared in advance. This preliminary assembly reduces on-site work to simply joining the two halves together, significantly reducing assembly time while preserving the transport benefits of divided construction
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
Facilitates easy and secure installation of pulley blocks on conductors, reducing assembly time and enhancing safety by allowing multiple conductor ropes to be managed without separate assembly, thus minimizing risks and improving operational efficiency.
Implementation Method 1
the connecting device connects the first roller axis and the second roller axis captively to one another and pivotably relative to one another
Data Source
Figure 1
Figure 1a~1b
Figure 2
AI summary
The invention relates to a roller block (1) with two roller axes (6, 7). To simplify handling of the roller block (1), the roller axes (6, 7) are pivotable relative to one another.