Pivoting Mounting Arm for Elevator Drive Installation
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Solution Overview
Problem
Existing methods for mounting elevator drives in the shaft head of elevator systems are cumbersome and costly, requiring additional machinery and space, and often involve unsafe manual handling due to the weight and positioning constraints.
Innovation Solution
A method using a pivoting mounting arm that rotates around a fixed area on the elevator guide rails, allowing the elevator drive to be lifted and aligned precisely into its intended position, with the arm absorbing the weight of the drive, facilitating easier and safer installation, especially near the shaft head ceiling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a lifting device is used to lift the elevator drive to the desired position, then the elevator drive can be positioned in the shaft head, but the lifting device cannot reach positions directly below the shaft head ceiling due to its dead weight and positioning constraints
Solution Approach 1:
The mounting arm acts as an intermediary between the lifting device and the elevator drive. The lifting device first positions the mounting arm within reach, then the mounting arm's pivoting mechanism brings the elevator drive to the final position directly below the shaft head ceiling, overcoming the lifting device's positioning limitations
Solution Approach 2:
The mounting arm provides dynamic positioning capability through its pivoting mechanism. Instead of relying on the static lifting device to reach the exact final position, the system uses the dynamic range of motion of the mounting arm to achieve precise positioning at locations the lifting device cannot directly access
2Measurement precision
If a mounting device is used to move the elevator drive along guide rails, then the drive can be positioned precisely, but the device becomes cumbersome and requires additional expensive machinery
Solution Approach 1:
The mounting arm serves multiple functions: it acts as a positioning mechanism, a support structure, and a transfer device. This multi-functional approach eliminates the need for separate specialized machinery, reducing overall device complexity while maintaining precise positioning capability
Solution Approach 2:
The system is segmented into two independent components: the lifting device for vertical positioning and the mounting arm for horizontal/precise positioning. This segmentation allows each component to be simpler and more specialized, reducing overall complexity compared to a single complex mounting device
3Power
If the lifting device is used to lift both the elevator drive and the elevator car, then both can be positioned, but a more powerful lifting device is required than actually necessary for loading the load carrier
Solution Approach 1:
The lifting task is segmented into two phases: Phase 1 uses the lifting device to position the mounting arm and elevator drive, and Phase 2 uses the mounting arm's mechanical advantage to complete the positioning. This segmentation allows the lifting device to be sized for the lighter initial load rather than the combined weight, simplifying its manufacture
Solution Approach 2:
The mounting arm acts as an intermediary that transfers the elevator drive from the lifting device to the final position. This intermediary mechanism allows the lifting device to operate at lower power levels, as it only needs to lift the drive initially, not the entire car assembly
4Area of stationary object
If the elevator drive is installed as close as possible to the shaft head ceiling, then space in the shaft is minimized, but the drive becomes difficult to position and install safely
Solution Approach 1:
The mounting arm serves as a safety intermediary that maintains controlled connection between the elevator drive and the installation system. It allows the drive to be positioned in the difficult-to-reach area while providing a secure attachment point, preventing accidental drops and ensuring installation safety
Solution Approach 2:
The pivoting mounting arm provides dynamic control over the elevator drive's final position. This dynamic control allows installers to safely maneuver the drive into the tight space near the ceiling while maintaining secure connection, reducing installation risks
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 method simplifies the installation process, reduces the need for powerful lifting devices, enhances safety by preventing the elevator drive from falling, and allows for precise alignment without additional tools, making it easier to mount the elevator drive close to the shaft head ceiling.
Implementation Method 1
The mounting arm rotates around a fixed area (alternatively called 'range') that is below the intended installation position on the elevator guide rails
Implementation Method 2
The mounting arm facilitates the installation of the elevator drive. For this purpose, it rotates around a fixed area... The mounting arm absorbs the weight of the drive
Implementation Method 3
the elevator drive is lifted by a lifting device to a part of the shaft head below its intended installation position
Data Source
Figure 1
Figure 2~5
Figure 6~9
AI summary
The invention relates to a method for mounting an elevator drive (2) in the range of the shaft head of an elevator shaft (1), the method comprising a first step in which the elevator drive (2) is lifted by means of a lifting device (3) into the range of the shaft head lying below its intended mounting position, characterized in that in a second step the elevator drive (2) is mounted on a pivoting mounting arm (7) which can pivot about a fixed range that is located in a distance below the intended mounting position on the elevator guide rails (4) on which the elevator drive (2) is to be mounted and is further lifted in a third step in such a way that it moves on a path predetermined by the mounting arm (7) and its fixed area into its intended mounting position in the area of the upper end of the elevator guide rails (4), the weight of the elevator drive (2), when it reaches its mounting position, being essentially supported by the mounting arm (7) which is then preferably located vertically below the motor contour.