Elevator Coupling Guide System Vibration Compensation
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Solution Overview
Problem
Existing elevator systems experience vibrations during operation, leading to potential collisions between free coupling elements and elevator cars or shafts, causing damage and noise, which compromises the reliability and comfort of the system.
Innovation Solution
A guide system with a stationary guide and a runner connected via a flexible connection, allowing relative movement between the coupling element and the runner, which compensates for movements and tilting of the elevator car, preventing damage to the guide system and ensuring smooth operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid connection between the coupling element and the guide system is used, then the guide system structure is simple, but the coupling element cannot compensate for movements and tilting of the elevator car, leading to collisions and damage
Solution Approach 1:
The patent applies a flexible connection mechanism between the coupling element and the runner, allowing the coupling element to move relative to the guide system. This flexibility compensates for movements and tilting of the elevator car without requiring a complex active control system, thus improving reliability while maintaining relatively simple device structure.
Solution Approach 2:
The guide system transitions from a rigid static structure to a dynamic system where the coupling element can move relative to the runner. This dynamic capability allows the system to adapt to elevator car movements and tilting, preventing collisions and damage while maintaining operational simplicity.
2Ease of operation
If the coupling element is rigidly fixed to the runner, then the guide system is simpler, but vibrations during elevator operation cause the coupling element to strike the elevator car or shaft
Solution Approach 1:
The flexible connection between the coupling element and the runner allows the coupling element to absorb and accommodate vibrations during elevator operation. This flexibility prevents the coupling element from striking the elevator car or shaft, eliminating harmful vibrations and collisions while maintaining smooth operation.
Solution Approach 2:
The flexible connection acts as a cushioning mechanism that anticipates and absorbs vibrations before they can cause harmful collisions. By providing this preliminary cushioning, the system prevents vibrations from escalating into damaging strikes against the elevator car or shaft.
3Reliability
If a flexible connection is used between the coupling element and the runner, then vibrations and collisions are prevented, but the device complexity increases
Solution Approach 1:
The patent implements a flexible connection that prevents damage from vibrations and collisions while maintaining relatively simple device complexity. The flexible mechanism allows necessary movements without requiring complex active control systems or multiple components, achieving reliability enhancement with minimal increase in device complexity.
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 flexible connection between the coupling element and the runner prevents collisions and damage, enhancing the reliability and comfort of the elevator system by allowing for compensation of movements and tilting, thus ensuring safe and quiet operation.
Implementation Method 1
The connection between the coupling element and the runner is designed such that a relative movement between the runner and the coupling element is possible
Data Source
AI summary
An elevator system includes an elevator car movable in an elevator shaft, a suspension means extending in the elevator shaft, a drive machine associated with the suspension means and a controllable coupling device arranged on the elevator car. The suspension means has a coupling element that the coupling device can be coupled to and uncoupled from, as a result of which a drive connection between the elevator car and the suspension means can be established and released. The elevator system has a guide system guiding the coupling element during a movement in the elevator shaft. The guide system has a guide that is stationary relative to the elevator shaft and a runner that is connected to the coupling element via a connection and is guided along the guide. The connection between the coupling element and the runner enables a relative movement between the runner and coupling element.