Method for determining a wear state of components of a suspension means arrangement of an elevator system
AssigneeInventio AG
InventorFlorian Dold
Life of this patent
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Abstract
A method and a monitoring device determine a wear state of components such as a cable-like suspension means, a traction sheave of a drive machine and deflection rollers of a suspension means arrangement of an elevator system. The method comprises at least the following steps: monitoring an actual time curve of a first parameter which correlates with the wear state of at least one first monitored component of the components; comparing the actual time curve of the monitored first parameter with a predetermined expected time curve of the first parameter; and determining the wear state of the monitored component based on a result of the comparison.
Claims14
A method for determining a wear state of components of a suspension means arrangement of an elevator system, the method comprising steps of:
- providing a monitoring device adapted to perform the following steps;
- monitoring a first parameter that correlates with a wear state of a first monitored component of the components of the suspension means arrangement using a first sensor that generates a first parameter monitoring signal to the monitoring device over an observation time period;
- storing the first parameter monitoring signal in the monitoring device and generating an actual time curve from the stored first parameter monitoring signal;
- comparing the actual time curve of the first parameter monitoring signal with a predetermined expected time curve of the first parameter;
- determining the wear state of the first monitored component based on a result of the comparison, wherein the wear state is determined based on an increase in a modulus of elasticity of a cable-like suspension means of the suspension means arrangement after a preceding successive decrease in the modulus of elasticity of the suspension means;
- and
- transmitting information about the determined wear state of the first monitored component from the monitoring device to at least one of a controller of the elevator system and a control center and using the transmitted information to plan maintenance work on the elevator system in advance.
Dependencies are inferred from the claim text.