Counterweight Frame as Material Shuttle for Elevator Installation
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Solution Overview
Problem
The installation of elevators in tall buildings poses challenges in terms of time efficiency and safety, as existing methods do not adequately optimize the process for high-rise structures, particularly in efficiently moving and assembling heavy components while ensuring worker safety.
Innovation Solution
The method involves using a counterweight frame as a material shuttle, moved along guide rails, to efficiently transport elevator components to assembly positions, with a hoist system and drive mechanism allowing for independent movement and secure placement of components, and utilizing limit switches for automated positioning and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional installation methods are used in tall buildings, then worker safety may be compromised, but installation time and efficiency are reduced
Solution Approach 1:
The installation system is segmented into multiple independent components: a mobile support platform for worker safety, a separate counterweight frame for material transport, and modular elevator components. This segmentation allows simultaneous operations - workers can safely assemble on the stabilized platform while components are independently transported via the counterweight frame, resolving the contradiction between safety and efficiency
Solution Approach 2:
The mobile support platform acts as an intermediary between the shaft environment and workers, providing stabilization and safety features (guardrails, platform structure) without interfering with the material transport function of the counterweight frame. This intermediary structure enables both safe worker operations and efficient component delivery
2Productivity
If heavy elevator components are manually transported to assembly positions, then installation time increases, but using automated transport systems increases system complexity
Solution Approach 1:
The counterweight frame is designed with multi-functionality: it serves both as the counterweight mechanism for the elevator and as a material transport shuttle. By loading components onto the counterweight frame at the lower landing and transporting them to upper assembly positions, the system eliminates the need for separate transport equipment, achieving high productivity without proportionally increasing system complexity
Solution Approach 2:
The counterweight frame transports components autonomously using the hoist system and limit switches for positioning. The frame moves itself to the upper landing position, allows component transfer, then returns automatically to the lower landing for the next load, creating a self-service transport cycle that improves efficiency without requiring complex external control mechanisms
3Productivity
If the installation platform is moved continuously to upper positions, then assembly work efficiency improves, but the time required to move the platform itself increases
Solution Approach 1:
The system segments the functions of material transport and worker assembly by providing two separate access paths: the counterweight frame continuously transports components to upper positions, while workers remain on the mobile support platform at their working height. This segmentation eliminates the need to stop assembly work for platform repositioning, maintaining continuous assembly productivity while the platform moves independently when needed
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 approach significantly enhances the efficiency and safety of elevator installation in tall buildings by allowing easy and secure movement of heavy components to assembly positions, reducing manual labor and ensuring safe operation through automated control.
Implementation Method 1
The support means used in the hoist are preferably designed as cables, in particular as steel cables
Implementation Method 2
The drive is in operative contact with the suspension element via a traction sheave. Corresponding to a rotational movement of the traction sheave, the drive moves vertically up or down along the suspension element
Data Source
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AI summary
The invention relates to an installation method for a lift having the following steps: provision of a counterweight frame (41) which is designed to be moved along counterweight guide rails (21), provision of an installation platform (51) which is designed to be moved along car guide rails (33), and loading of the counterweight frame (41) with at least one lift component and movement of the counterweight frame (41) to the installation platform (51).