Engineering, Energy, Transport AIC

Rutkevych Volodymyr – PhD, Senior lecturer of the Department of “Machinery and Equipment for

Agricultural Production” of Vinnytsia National Agrarian University (Sonyachna Str., 3, Vinnytsia, Ukraine,

21008, e-mail: v_rut@ukr.net).

The article discusses and analyzes the operating conditions of a modern hydraulic drive. Despite the

difficult operating conditions of modern agricultural machinery (difficult working conditions, frequent

changes in the technological load on the working bodies, low quality of the working fluid, increased dust

content and temperature fluctuations), the hydraulic drive is its main reliable element. The basis of

hydraulic drives is hydraulic spool type devices, they remain the main components of a modern hydraulic

drive, are able to increase energy, dynamic, cost characteristics and increase the reliability and durability

of this drive. The advantages, disadvantages and directions of improvement of this drive are noted. The

modern directions of development of the hydraulic drive aimed at increasing the reliability, durability and

adaptability to changing the technological load on the working bodies are considered. A booth design is

proposed that allows to investigate a resource study of the developed spool splitter of a forage stem feeder.

As a result of the research at the initial stage, some shortcomings in the structural implementation of the

developed spool of the flow divider at the time up to 2·104 cycles were revealed. After analyzing the

operating conditions and making changes to the design of the stem feeder spacer spacer and retesting, the

spacer spacer showed stable operation, with more than 6.6·105 load cycles.

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