Measurement Technique of the External Surface Shape of Large-Size Parts – Rotation Bodies of Technological Drum Supports

Various techniques and devices are used to determine the shape errors of large-sized parts of technological units. This is important for the correct assignment of parameters for further reduction processing by special machines and machine tools. The acquired errors arise for several reasons: 1) large dimensions and weight of rotating parts, 2) the instability of the axis of the rotating part mounted on two support rollers, 3) the available initial and acquired shape error in the cross section of the part. It is important to define the types of form errors of the surfaces, error analysis, prediction and calculation of deviations from roundness in the cross section of the bandage, and the evaluation of cylindricity. Modeling of the process of operation and diagnostics of the unit, development of methods for determining errors, calculation of real values of deviations from the original contour on the basis of reconstruction of the contour of the section becomes important and necessary. These processes are performed using modern CAD systems and software. Obtaining data arrays in the process of measurements and their processing with the help of a special software module that performs an interactive calculation of shape errors with different geometric parameters of the cross-section of the bandage, provides the ability to obtain information about the state of the outer surfaces and parts of the supports on the operating unit. This article presents a method for determining the geometric parameters of the shape in the cross section of the rotation part, algorithms and software for reconstructing the contours of the cross sections of the part and calculating the shape error of the outer cylindrical surfaces

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Improving the Efficiency of Cement Furnace Bandages Repair Technology Through the Use of a New Processing Module Design

Timofeev

2023

Bulletin of Belgorod State Technological University Named After. V. G. Shukhov

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During the operation of large-sized kilns of cement plants, due to the design features and operating conditions, there is constant wear of the rolling surfaces of its supports, consisting of support rollers and bandages. A decrease in the accuracy of the shape caused by the wear of these surfaces can lead to distortion of the shape of the entire unit and its failure. To eliminate wear and bring the shape of the supports to the standard values of geometric tolerances, there are various technological processes of mechanical processing. The most effective of them are non-dismountable mobile repair technologies. A distinctive feature of this type of technological processes is that the machining of the rolling surface of the supports is carried out directly during the technological rotation of the firing furnaces, without stopping them. Subject to the use of existing methods for measuring the shape of the rolling surface of the bandages, the possibility of increasing the efficiency of their machining due to the integrated use of a new design of the processing module and a software module for constructing a route and calculating technological cutting modes is shown. The paper considers the main stages and methods of performing a new technological process of mechanical surface treatment of rolling bands of firing furnaces.

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Measurement Technique of the External Surface Shape of Large-Size Parts – Rotation Bodies of Technological Drum Supports

Cited by 3 publications

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System for Ensuring Shape Precision of the Contact Surface of Drum Tires

System for Ensuring Shape Precision of the Contact Surface of Drum Tires

The Methodology and Software for Calculating the Error of Cylindrical Surface

Improving the Efficiency of Cement Furnace Bandages Repair Technology Through the Use of a New Processing Module Design

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