Improvement servo systems tillage machines
Abstract
Оbjective of the study is a reduction energy costs for a soil cultivation. Soil cultivation quality should not deteriorate. Mechanical devices are not effective. Working bodies have to be moved automatically. Automated devices can be divided into two groups: direct and indirect action. Рreferable to indirect action. The article presents an analysis of the automatic devices used for a soil cultivation. Follower devices can be hydraulic, electro-hydraulic and pneumatic. Hydraulic devices at lower electric and pneumatic. Were chosen hydraulic follower devices. The best of energy and quality indicators of the technological process provided by when using hydraulic follower devices of devices. Hydraulic devices have higher specific energy content. The weight hydraulic elements thanks to high energy content of 7-10 times less the weight of electrical elements of the same capacity. Developed the method of computer modeling of follower systems. Рresents results of improvement of hydraulic servo system of tillage machines for processing the soil in rows of perennial plants, the application of which will reduce energy costs by 49%. Analyzed the shortcomings of the existing hydraulic servo systems governing the working body for tillage. It is established that the smallest a trapezoidal mechanism leaves the untreated soil area. Other mechanisms leave untreated area 1,37-1,46 times than a trapezoidal. The developed design of the valve. Reviewed the workflow in the proposed hydraulic servo system, which is characterized by a pressure increase only in the rod end of cylinder cavity. Тhe positive effect of reducing the cost of energy can be increased by rational choice of parameters of the working body.
