UDC
631.316.022
Tovashov Rustam
Khojakhmat ogli
basic doctoral student
Karshi Engineering-Economics
Institute
Karshi, Uzbekistan
THEORETICAL BASIS OF THE INSTALLATION CORNER IN
RELATION TO THE DIRECTION OF MOVEMENT OF THE FURROW OPENER WORKING BODY OF THE
COMBINED MACHINE
Abstract
This
article presents the theoretical research and their results on the preparation
of sloping lands for planting and the substantiation of the installation drill
relative to the direction of movement of the working body of the combined
machine for sowing. According to him, the installation angle of the working
body relative to the direction of movement was 27-330.
Keywords
Combined
machine, furrow opener working body, installation angle relative to the direction
of movement.
Introduction. Today,
the development and application of energy-saving and high-performance tillage
machines that protect the soil is a leader.
According to scientists, agro-technical
methods such as plowing, furrowing, longitudinal and transverse storming are
important in the prevention and effective control of erosion in dry
agricultural areas [1]. This suggests the need to develop softening and
thinning working body techniques that form ridges at the bottom of the slope
and on the field surface to protect slopes from water erosion.
Experimental
results. To determine the mounting angle with
respect to the direction of movement of the furrow opener working body of the
combined machine, we consider the process of interaction of soil particles in
the horizontal plane with the working body [2].
When the furrow opener
passes from position I to position II with velocity Va (Fig.
1), the M force of the soil is the effect of the Ry
force, which is an equal effect of the normal (N) and friction (F)
forces acting on it. moves from point A to point A1
below. We determine the longitudinal (S1) and transverse (S2)
displacements of the soil fragments in this migration.
Figure 1. Scheme for determining the
mounting angle of the working body relative to the direction of movement
(1)
(2)
where
Sк
is the path traversed by the working body, m.
Assuming that Sк
= 20 cm, graphs of the changes of S1 and S2
in relation to γ2
are plotted in Figure 2 for different values of φт.
a
b
1 – φт
= 250;
2
– φт =
300;
3
– φт =
350
Figure 2. Graphs of change of S1 (a)
and S2 (b) depending on γ2
It can be seen from these
graphs that as the angle γ2
increases, the longitudinal displacement of the soil fragments increases, while
the transverse displacement increases first and then decreases.
(2) by studying the
expression for γ2
extremum, we obtain the following expression, which allows us to determine its
value, which ensures the maximum transverse displacement of soil particles [3]:
(3)
This means that the angle
γ2
should be in the range of 55-650 when φт
= 25-350.
Conclusion. From
the above theoretical research, it can be said that in order to ensure the
quality and low energy consumption of the working body, the installation angle
relative to the direction of movement of the working body should be in the
range of 27-33º.
References
1.
Mardonov
Sh.Kh. Substantiation of the parameters of the spherical disk of the cultivator
used in the processing of slope fields: Diss. of doc. of phil. (PhD) on tech. scien.
– Tashkent. 2019.
– 24 p.
2.
Temirov
S.U. Developing universal working body of cotton cultivator and substantiating
its parameters: Diss. abs. of doc. of phil. (PhD) on tech. scien. – Tashkent.
2019.
– 12-14 p.
3.
Sineokov
G.N., Panov I.M. Theory and calculation of tillage machines. - Moscow:
Engineering, 1977. - 328 p.
© R.Kh.Tovashov, 2020
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