Abstract

One of the tasks that imply increasing the milk productivity of cows is to create optimal maintenance conditions that ensure the increased use of the genetic potential of cattle based on the implementation of engineering and technological solutions. A mathematical model has been built that links the technical and technological parameters of the vacuum system of milking equipment, namely, the value of the working vacuum P, the pulsation frequency n, the ratio of pulsation cycles, and the tension strength of milking rubber FH to cows’ milk yield rate V. The range of milking plant operating parameters for milking in the milk line has been determined, at which the milk yield rate is maximum: P=52 kPa, n=57.6–58.8 min–1, δ=0.59–0.64, FH=59.3–60.4 H. Under these parameters, the milk yield rate is V=1.48–1.53 l/min. The results of the multifactor experiment have helped construct an adequate mathematical model of the second order, which confirms the theoretical dependence of the influence of the technical and technological parameters of the vacuum system of milking equipment on milk yield rate and the air flow of the milking machine. Analysis of the mathematical model has made it possible to establish the rational structural and technological parameters for the vacuum system of a milking machine: the value of the working vacuum, P=50.6 kPa; pulsation frequency, n=55.9 min–1, the ratio of pulsation cycles and the tension force of milking rubber FH=64.8 H. Under these parameters, the milk yield rate is maximum: V=1.47–1.52 l/min; the air flow consumption of the milking machine is Q=2.19 m3/h. The mathematical model built fully reveals the influence of technical and technological parameters of milking equipment on the efficiency of machine milking. Owing to this, the issue related to the rational choice of equipment is resolved.

Highlights

  • The pulsator performs the function of the regulatory part of the milking machine, which sets the mode of its operation

  • Our study into determining the dependences of technical parameters of the vacuum system of milking equipment on milk yield rate was carried out using the method of mathematical planning of a multifactor experiment

  • Using the built mathematical model of the influence of the technical and technological parameters of a va­ cuum system of milking equipment on the efficiency of machine milking (23), we tested the correspondence of the obtained experimental data to theoretical prerequisites

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Summary

Introduction

Machine milking of cows is a technological process in which a controlling element (milking machine) interacts with the animal’s body. Engineering technological systems: Reference for Chief Designer at an industrial enterprise productivity Along with this, such milking of cows makes it possible to obtain clean, good-quality milk as it does not come into contact with the external environment [2–4]. Deviation from norms and violation of the rules of operation of milking equipment lead to a disruption in the functioning of the mammary gland of cattle In this regard, it is a relevant task to investigate conceptual approaches to the issue of dairy cattle breeding. The current study is necessary to determine the influence of technical and technological parameters of milking equipment on the efficiency of machine milking This approach could make it possible to eliminate various violations in the management of machine milking and obtaining high yields. That could make it possible to reveal the mechanism of interaction between the milking plant and an animal, which is both of theoretical and practical interest

Literature review and problem statement
The aim and objectives of the study
The study materials and methods
Qmax t2
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