THEORETICAL BASIS OF THE INSTALLATION CORNER IN RELATION TO THE DIRECTION OF MOVEMENT OF THE FURROW OPENER WORKING BODY OF THE COMBINED MACHINE

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 V_a (Fig. 1), the M force of the soil is the effect of the R_y 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 S_к is the path traversed by the working body, m.

Assuming that S_к = 20 cm, graphs of the changes of S₁ and S₂ in relation to γ₂ are plotted in Figure 2 for different values of φ_т.

                          a                                                                     b

1 – φ_т = 25⁰;               2 – φ_т = 30⁰;               3 – φ_т = 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 φ_т = 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