<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Modern milking machines need some additional studies to meet the requirements as to milking equipment. An imperfect design of a teatcup results in an incomplete milking of cows. The availability of devices for milk flow stimulation promotes an increase in a cow milk yielding capacity. But here arises a problem of an un-controlled axial motion of a teatcup on a teat. As a result, a full milkflow is reduced, particularly at the final stages of milking. There is an effect of an increase in an inner diameter of a liner barrel, which causes that teatcups fall down. A scientific problem of the mitigation of some negative developments with the view to improve the efficiency of a teatcup arises. In a teatcup shell a liner is in a detended position during milking and resting periods. Thus, it under constant stretching. It results in a loss of elasticity irrespective of the material, as well as in reduction ofthe period of service maintenance. The use of a device for supporting a liner which is in a stretched state only during the milkflow, will result in an increase of a teatcup efficiency. The suggested automatic pneumatic mechanism releases a liner from the load during the resting period. The dependence of a tension force of a liner from the surface area of an annular membrane has been established. It has been proven that the membrane surface of 0.00065 m<sup>2</sup> provides tension for a mechanism performance irrespective of operating vacuum pressure. The regression equation which connects geometrical parameters of an operating system with the efforts directed at the opening of a leading membrane has been received. A suitability of operation of using a pneumatic tightening device has been substantiated. An insignificant axial motion of a liner during a cycle of milking creates a stimulating effect. As a result, a completeness of miliking increases by 3-8%.</p>
</abstract>

Modern milking machines need some additional studies to meet the requirements as to milking equipment. An imperfect design of a teatcup results in an incomplete milking of cows. The availability of devices for milk flow stimulation promotes an increase in a cow milk yielding capacity. But here arises a problem of an un-controlled axial motion of a teatcup on a teat. As a result, a full milkflow is reduced, particularly at the final stages of milking. There is an effect of an increase in an inner diameter of a liner barrel, which causes that teatcups fall down. A scientific problem of the mitigation of some negative developments with the view to improve the efficiency of a teatcup arises. In a teatcup shell a liner is in a detended position during milking and resting periods. Thus, it under constant stretching. It results in a loss of elasticity irrespective of the material, as well as in reduction ofthe period of service maintenance. The use of a device for supporting a liner which is in a stretched state only during the milkflow, will result in an increase of a teatcup efficiency. The suggested automatic pneumatic mechanism releases a liner from the load during the resting period. The dependence of a tension force of a liner from the surface area of an annular membrane has been established. It has been proven that the membrane surface of 0.00065 m2 provides tension for a mechanism performance irrespective of operating vacuum pressure. The regression equation which connects geometrical parameters of an operating system with the efforts directed at the opening of a leading membrane has been received. A suitability of operation of using a pneumatic tightening device has been substantiated. An insignificant axial motion of a liner during a cycle of milking creates a stimulating effect. As a result, a completeness of miliking increases by 3-8%.

Simulation of Design Parameters of a Milking Cup with An Extended Service Life

Departament of Mechanical, Energy and Biotechnology Engineering

Agriculture Academy, Vytautas Magnus University

Department Machines Processes and Agroengineering Equipment

Department of Power Engineering and Electrical Technologies, Faculty of Energy and Computer Technology

Dmytro Motornyi Tavria State Agrotechnological University

Departament of Mechanical, Energy and Biotechnology Engineering, Faculty of Engineering

Vytautas Magnus University Agriculture Academy

Higher Educational Institution “Podillia State University”

Department of Production Engineering, Logistics and Applied Computer Science, Faculty of Production and Power Engineering

Agricultural Engineering

This work is licensed under the Creative Commons Attribution 4.0 International License.

{"article-title":"Simulation of Design Parameters of a Milking Cup with An Extended Service Life"}

Modern milking machines need some additional studies to meet the requirements as to milking equipment. An imperfect design of a teatcup results in an...

Simulation of Design Parameters of a Milking Cup with An Extended Service Life

Published Online: Dec 30, 2022

Page range: 243 - 252

Received: Sep 01, 2022

Accepted: Nov 01, 2022

DOI: https://doi.org/10.2478/agriceng-2022-0019

Keywords
milking, teatcup, cow, milk

© 2022 Jonas Čėsna et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Simulation of Design Parameters of a Milking Cup with An Extended Service Life

Published Online: Dec 30, 2022

Page range: 243 - 252

Received: Sep 01, 2022

Accepted: Nov 01, 2022

DOI: https://doi.org/10.2478/agriceng-2022-0019

Keywordsmilking, teatcup, cow, milk

© 2022 Jonas Čėsna et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
milking, teatcup, cow, milk