Permanent Motor Hoisting in Machine Room-less Elevator Construction
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Solution Overview
Problem
Traditional machine room-less elevator construction methods are inefficient and time-consuming, requiring temporary motors and multiple components, which increase installation time, cost, and complexity.
Innovation Solution
A method involving the installation of a support frame at the top of the elevator passage, where a permanent motor is installed to hoist materials and components, allowing for the efficient construction of elevator rails from the bottom up, eliminating the need for temporary motors and reducing installation time and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional machine room-less elevator construction methods are used, then the elevator system can be installed without a dedicated machine room, but the installation process becomes inefficient and time-consuming requiring temporary motors and multiple components
Solution Approach 1:
The permanent motor is pre-installed on the motor platform at the top of the elevator shaft before rail installation begins. This preliminary action eliminates the need for temporary motors during construction, as the permanent motor is ready to immediately hoist materials and components as rails are installed from bottom to top.
Solution Approach 2:
The permanent motor serves dual functions: it acts as the operational elevator motor for the completed system and simultaneously serves as a construction tool to hoist materials during installation. This multi-functionality eliminates the need for separate temporary motors and reduces overall device complexity.
2Reliability
If temporary motors and multiple components are used in traditional construction, then the elevator can be assembled, but installation time and cost increase
Solution Approach 1:
The temporary motor component is extracted from the construction process entirely. By pre-installing the permanent motor on the motor platform, the patent eliminates the need for temporary motors that would otherwise be required to hoist materials during assembly, thereby reducing installation time without compromising functionality.
Solution Approach 2:
The permanent motor is installed in advance on the motor platform before the rail installation process begins. This preliminary action ensures the motor is ready to immediately assist with hoisting materials as rails are installed from bottom to top, eliminating delays associated with installing motors during construction.
3Area of stationary object
If the motor is installed at the top of the elevator shaft, then building space is saved by eliminating the machine room, but the motor must be hoisted into position during construction
Solution Approach 1:
The motor is pre-assembled on the motor platform at the top of the shaft before construction begins. This preliminary positioning eliminates the need to hoist the motor during construction, as it is already in its final position ready to immediately hoist materials as rails are installed.
Solution Approach 2:
The motor platform serves dual purposes: it provides the mounting structure for the permanent motor and simultaneously acts as a construction platform for assembling and positioning components during installation. This multi-functionality simplifies the installation process while maintaining space efficiency.
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 reduces installation time and cost by utilizing a permanent motor to build and operate the elevator system, ensuring proper alignment and efficient construction of the elevator system within the building.
Implementation Method 1
A motor platform is attached to the support frame and the elevator motor is set on the motor platform
Data Source
AI summary
Disclosed embodiments provide techniques and apparatus for installing an elevator. A support frame is assembled at the top of an elevator passage. The permanent elevator motor is installed in the support frame. The permanent motor is then used to hoist materials as needed to build out the elevator system. Once built, the permanent motor that is already installed and has had hours of usage to verify its operation, is used for movement of the elevator car for the completed elevator system.