UDK УДК 62-533.7 Doi: 10.31772/2587-6066-2018-19-4-668-676
IMPROVEMENT OF THE METHOD OF CALCULATING THE UNIVERSAL JOINTS TRANSMISSION ANGLE WITH THE USE OF THEORETICAL AND EXPERIMENTAL STUDIES
S. P. Eresko, T. T. Eresko, E. V. Kukushkin, V. A. Menovshikov
Reshetnev Siberian State University of Science and Technology, 31, Krasnoyarsky Rabochy Av., Krasnoyarsk, 660037, Russian Federation
A technique for improving the calculation of the angle of twisting of a universal joint shaft. The design of the stand for testing universal joint gears is proposed, which includes an electric motor whose output shaft is connected to the input shaft by a mechanical gearbox connected by an output shaft to an input shaft tested by cardan gear mounted on the frame. The output shaft of the universal joint gear is connected to the input shaft of the gear reducer mounted on the additional frame together with a loading device which is hydraulic and is a hydraulic pump whose shaft is connected to the output shaft of the dispensing gear. The input channel of the hydraulic pump is connected to the hydraulic tank with the working fluid, and its output channel is connected to the input channel of the throttle, which regulates the load. Between the throttle and the hydraulic pump is installed a pressure gauge calibrated in units of braking torque and a safety valve for discharging excess pressure into the hydraulic tank. The output channel of the throttle is connected to the hydraulic tank through the heat exchanger. The safety valve is electrically connected to an electrocontact manometer that is connected to the electrical network and is a DC solenoid valve. The results of the tests of universal joints gears in four modes of operation, characterized by varying values of the torque and braking moment and changing the design parameters of the universal joints transmission in each experiment. The equation of linear regression dependence of the twist angle of the universal joints shaft on the factors: the length of the universal joints gear; angle of kink in universal joints transmission; electric motor power; engine speed; braking force from the hydraulic fluid pressure. The boundaries of the confidence intervals of the angles of twisting of the universal joints transmission are found. The reliability and adequacy of the results of theoretical studies is confirmed by experimental studies carried out at the stand with similar theoretical data.
Keywords: measuring system, test bench, universal joint, measurement error, experimental error.
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Eresko Sergei Pavlovich – Dr. Sc., professor, Corresponding member of Academy of Higher Education of the

Russian Federation, honored inventor of the Russian Federation; Department of Fundamentals of machine design,

Institute of Mechanical Engineering and Mechatronics, Reshetnev Siberian State University of Science and Technology.

E-mail: ereskosp@mail.sibsau.ru, eresko07@mail.ru.

Eresko Tatiana Trofimovna – Dr. Sc., Docent, Department of Fundamentals of machine design, Institute

of Mechanical Engineering and Mechatronics, Reshetnev Siberian State University of Science and Technology,

Professor. E-mail: ereskottt@mail.ru.

Kukushkin Evgenii Vladimirovich – assistant, Department of Fundamentals of machine design, Institute

of Mechanical Engineering and Mechatronics, Reshetnev Siberian State University of Science and Technology. E-mail:

ironjeck@mail.ru.

Menovshchikov Vladimir Alexandrovich – Dr. Sc., professor, Department of Fundamentals of machine design,

Institute of Mechanical Engineering and Mechatronics, Reshetnev Siberian State University of Science and Technology.

E-mail: menovchikovva@mail.sibsau.ru.


  IMPROVEMENT OF THE METHOD OF CALCULATING THE UNIVERSAL JOINTS TRANSMISSION ANGLE WITH THE USE OF THEORETICAL AND EXPERIMENTAL STUDIES