Technological bases of the improvement of agricultural transport-technological machines

Abstract

Mechanical, electrical, hydraulic and pneumatic transmissions are used in transmissions of agricultural transport technology machines. Depending on the design tasks, the considered transmissions have different kinematic schemes, parameters and design solutions. At the same time, the number of possible options can be quite large; therefore, the determination of the preferred option is, as a rule, a multi-criteria task and often leads to a palliative or compromise choice. The main problem of their development is the adaptability of the design of the actuator to the requirements of the technological (working) process associated with the constant change in the state of the technological object. This paper presents the rationale for developing a theory of kinematic chains of positive orders (adaptive kinematic chains), creating a theory of the structure of adaptive kinematic and adaptive mechanisms in general, methods for static and dynamic analysis of adaptive mechanisms, as well as methods for calculating their basic parameters.

The choice of a promising scheme of transport technological agricultural energy

“…To expand the number of control ranges of the output parameters, simplify the design and reduce the mass and dimensions of adaptive p-moment distributors, it is possible to use composite and complex adaptive moment distributors [10].…”

The way to improve safety of pedestrian traffic at unregulated pedestrian crossing

“…Among the total number of accidents, one of the "first" leading places is a collision with a pedestrian. Therefore, any work in the field of improving road safety at pedestrian crossings is relevant [12][13][14].…”

Circulating power in transmissions of transport and technological machines for agricultural purposes

“…At the same time, a decrease in the power flow transmitted through the weakest infinitely variable link leads to a decrease in the overall control range of a closed multi-stream transmission, and an increase in the control range is possible only when the power flow is circulating, i.e. when the transmission is overloaded [7,11].…”