Elevator Suspension Balancing Rocker for Tension Alignment
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Solution Overview
Problem
Elevator systems with two suspension means experience uneven wear due to accumulated tolerances and load differences, necessitating leveling mechanisms that often require additional components like springs and levelling means.
Innovation Solution
A balancing device with pivotable levers and a rotatably mounted balancing rocker, coupled to mounting fixtures, maintains a predetermined distance between suspension means, guiding them along a vertical path to prevent misalignment and enhance stroke length, using guiding elements and gliding means to reduce friction, and incorporates an actuating arm for detecting tension deviations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a simple rocker is used for balancing, then the structure is simple, but the stroke length is insufficient
Solution Approach 1:
The balancing device is divided into multiple functional components: a rocker body for basic balancing, lever arms extending from the rocker, and mounting fixtures at the ends of the levers. This segmentation allows each component to contribute to the overall stroke length while maintaining structural manageability
Solution Approach 2:
The patent extends the balancing mechanism from a simple single-plane rocker to a multi-dimensional structure by adding lever arms that extend laterally from the rocker body. This dimensional expansion increases the effective stroke length without proportionally increasing structural complexity
2Stability of the object's composition
If mounting fixtures are allowed to move freely, then the displacement path is flexible, but misalignment of the suspension system occurs
Solution Approach 1:
Guiding elements act as intermediaries between the mounting fixtures and the rocker mechanism. These guiding elements constrain the mounting fixtures to follow a predetermined vertical displacement path, preventing lateral misalignment while allowing necessary vertical movement for balancing
Solution Approach 2:
The guiding elements establish a predetermined vertical path that maintains consistent alignment conditions throughout the displacement range, ensuring that the suspension means remain properly aligned regardless of their position in the stroke
3Reliability
If conventional leveling means with springs are used, then tension balancing is achieved, but additional components and device complexity are required
Solution Approach 1:
The patent extracts the spring elements from the traditional leveling mechanism and integrates the balancing function directly into the rocker-lever mounting fixture assembly. This extraction eliminates the need for separate spring components while maintaining tension balancing capability
Solution Approach 2:
The rocker-lever-mounting fixture assembly serves multiple functions simultaneously: it provides the balancing rock er mechanism, the lever arms for motion amplification, and the mounting fixtures for securing suspension means, all while maintaining tension balance without requiring separate spring components
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
The solution ensures balanced tension in suspension means, reduces wear, maintains alignment, and provides early detection of potential failures, enhancing safety and operational efficiency.
Implementation Method 1
each of the mounting fixtures being configured to couple to a suspension mean termination and being pivotably connected to a lever
Implementation Method 2
the lever being pivotably connected to one of two arms of a rotatably mounted balancing rocker
Implementation Method 3
balancing device for coupling two suspension means of an elevator system... enables levelling respective suspension means tensions by means of the balancing rocker
Implementation Method 4
two guiding elements are provided alongside a displacement path of the mounting fixtures... such that the mounting fixture is guided along a predetermined, in particular vertical axis
Implementation Method 5
using guiding elements and gliding means to reduce friction
Data Source
Figure 1
Figure 2
Figure 3a~3c
AI summary
The invention relates to a balancing device (20) for coupling two suspension means (14) of an elevator system (10), comprising two parallelly and axially displaceable arranged mounting fixtures (31), each of the mounting fixtures (31) being configured to couple to a suspension mean termination (24).