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- Autors
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Malashchenko V. O., Strilets V. M., Andrushkov V. I., Strilets O. R., Sharan A. S.
- Issue
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Hoisting and transport equipment, 2019, №2(61)
- Pages
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35-44
- DOI
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10.15276/pidtt.2.61.2019.03
- Abstract
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The structure of the flange-pin elastic coupling has been considered, which consists of two identical half-muffs, in the form of a hub with a flange-polyhedron on the end, for example, an equilateral triangle, a square, or a regular hexagon with pins pressed in the holes lying on the bisector of the angles at the same distance from the axis of rotation. Along the flat faces the through slots are made with elastic areas over them. The technology of joining the shafts and the principle of the operation of such coupling have been described. The method of calculating the elastic area of the coupling during the transmission of the torque has been developed. The elastic area has been considered as a beam with pinched ends. In solving the problem, the following assumptions has been taken: only the elastic areas are being deformed, since the dimensions of their cross-section are minimal, and the load from the torque applied to the middle of three or more elastic regions is distributed evenly. Using the method of solving statically indefinable problems of material resistance or building mechanics, analytical expressions have been obtained for determining the maximum bending moment and deformation. With the help of the obtained analytical expressions it is possible to determine the values of the maximum bending moment and the deformation of the elastic area of the coupling face and to evaluate its durability and performance by known methods.
Such couplings improve the performance of mechanical drives of machines - softly transmit dynamic torque, compensate for inconsistencies and improve the manufacturability of jointing shafts.
- Keywords
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coupling, flange, elastic area, regular polyhedron, slot, torque, bending moment, deformation
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