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Title of the article

FEATURES OF THE DESIGN AND MANUFACTURING TECHNIQUES OF FRICTIONAL DISKS OF CATERPILLAR AND WHEEL CARS

Authors

ANTONYUK Vladimir E., D. Sc. in Eng., Chief Researcher of the Laboratory of Metallyrgy in Mechanical Engineering, Joint Institute of Mechanical Engineering of the National Academy of Sciences of Belarus, Minsk, Republic of Belarus

In the section ENGINEERING COMPONENTS
Year 2016 Issue 3 Pages 43-52
Type of article RAR Index UDK 629.839.1:621.825.54 Index BBK  
Abstract

Most often meeting reason of failure while in service frictional brakes and frictional knots in caterpillar and wheel cars is deformability of frictional disks. Deformability of disks leads to indistinct inclusion and deenergizing of the frictional knot, the raised temperature mode and the fuel expense, reduction of service life of all frictional knot. Loss of clearness of inclusion and deenergizing of frictional knot reduces technical characteristics of controllability by all car. On the basis of the analysis of thermal balance of frictional knot and relative width of disks possibility of occurrence of deformability of disks in the form of “plate” is established and recommendations for choice an optimum parity of diameters and relative width of a disk are given. Variants of known technological processes of manufacturing of disks are considered and conclusions are drawn on their insufficiency for achievement of demanded accuracy on a deviation from planeness of working surfaces of disks and to decrease in technological residual pressure. Communication between technological residual pressure and deformability of disks is revealed. For decrease in deformability of disks while in service it is recommended to use technological process of manufacturing of disks with dynamic stabilisation. Decrease in deformability of the disks made with use of dynamic stabilisation, is confirmed by bench tests

Keywords

disc, friction, clutch, brake, deviation from planeness, deformability, residual pressure, dynamic stabilisation

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