Особенности конструкции элементов привода электрических дождевальных машин кругового действия

Abstract

Land irrigation is one of the important factors in obtaining stable and high crop yields. In Russia, up to 80% of arable land is located in zones of insufficient and unstable soil moisture. Sprinkler machines are used to irrigate the soil. Manufacturers of sprinkler equipment offer a wide range of machines to work on closed irrigation networks. Angular transmission (AT) is most commonly used as the wheel gear of sprinkler machines. An important component of the wheel gearbox is the worm gear. When analyzing the existing designs of arch sprinkler carts, it was concluded that it is necessary to optimize some of its elements. Such an element, in our opinion, is the elastic element of the coupling, made of polymeric material. The force elements of the elastic insert work mainly in bending. The most dangerous part of this element is the base of the “tooth”. In most cases, this element provides the necessary performance of the sprinkler drive, but at the peak values of torque (movement of wheeled cart on a difficult section) its deformation due to insufficient strength is possible. Therefore, the purpose of our work is to improve the strength characteristics of the drive elements of the arch-type sprinkler cart by optimizing their design parameters. To calculate the loads on the gearbox, classical methods of calculation of worm gears were used, taking into account the coefficients that depend on the environment. The finite element method with the use of the software environment Compass 3D was used to manufacture the prototype on a 3D printer.