Investigative study on temperature conditions of continuous run modes of hoisting machine electric drive

Abstract

The paper presents the findings of the investigative study on the features of electric drives in the continuous run modes (which correspond to the run modes of belt conveyor drives) using frequency converters and operating with the natural mechanical characteristics. The description of the test bench in the form of the generalized mechanism of the hoisting machine is provided. The paper formulates features and limitations of the heat control procedure taking into account environmental conditions and surface conditions of the research object. The sequence of the experiment is provided. The thermograms of the thermal photography are obtained and interpreted. The data is presented as temperature curves of the research object. The analysis of the data made it possible to confirm correctness of the recommendations proposed earlier on taking into account the type of the drive controlling system when building probabilistic mathematical models of the tractive force distribution, particularly when solving the task of computational distribution conservation of the tractive efforts between the drives.

Keywords

• drive
• controlling system
• electric drive
• frequency converter
• heat control
• continuous run mode
• belt conveyor