Info: Zenodo’s user support line is staffed on regular business days between Dec 23 and Jan 5. Response times may be slightly longer than normal.

Published November 18, 2021 | Version v1
Journal article Open

Revealing changes in the technical parameters of the teat cup liners of milking machines during testing and production conditions

Creators

  • 1. Kharkiv Petro Vasylenko National Technical University of Agriculture
  • 2. Dnipro State Agrarian and Economic University
  • 3. National Scientific Center «Institute of Experimental and Clinical Veterinary Medicine»
  • 4. State Agrarian and Engineering University in Podilia
  • 5. Sumy National Agrarian University
  • 6. Kharkiv National Automobile and Highway University

Description

To implement effective cow milking, it is necessary to take into account the peculiarities of the milk flow process, the milking machine's adaptability to perform the given technological functions. The aim of research is to establish changes in the design and technological parameters and physical and mechanical properties of teat cup liner of milking machines during its testing and in production conditions. The results obtained will make it possible to make a rational choice of rubber, ensure an efficient milking process during its service life. It is found that the tensile strength of silicone teat cup liner at the beginning of operation was 1.6 times higher than that of a rubber compound, and after 6 months. operation – 1.7 times. With respect to the relative elongation, this difference was 1.4 times, and after operating time – 1.3 times. Studies have proven that rubber during operation changes its physical and mechanical properties: the length of the active part increased by 3.1 mm; wall thickness – 0.2 mm. It is found that the most intensively elastic properties of teat cup liner changed during the first 10–20 days. After 10 days, the closing vacuum increased by 16.6 % compared to the initial one, and after 20 days by 23.3 %, which amounted to 8.57 and 9.06 kPa, respectively. Up to 420 hours of operation, the clamping vacuum reached 11.3 kPa, which is 5.8 % lower than the requirements for toughening teat cup liner for rejection. In general, over the period of experiments, the average value of the vacuum of closing the opposite walls of teat cup liner increased from 7.35 to 12.43 kPa, which is 3.6 % higher than the norm (12 kPa). As a result of experimental studies, the regularity of the rubber tension force depending on the operating time in the form of a fourth degree polynomial is obtained. It is found that after 150 hours of operation, the tensile force of teat cup liner decreased by 21 %

Files

Revealing changes in the technical parameters of the teat cup liners of milking machines during testing and production conditions.pdf

Files (760.2 kB)

Additional details

References

  • Wieland, M., Virkler, P. D., Borkowski, A. H., Älveby, N., Wood, P., Nydam, D. V. (2019). An observational study investigating the association of ultrasonographically assessed machine milking-induced changes in teat condition and teat-end shape in dairy cows. Animal, 13 (2), 341–348. doi: https://doi.org/10.1017/s1751731118001246
  • Palii, A. P., Kovalchuk, Y. O., Boyko, Y. A. (2020). Impact of various milking equipment on incidence of mastitis in dairy herd. Ukrainian Journal of Ecology, 10 (5), 160–165. doi: https://doi.org/10.15421/2020_224
  • Shevchenko, I. A, Aliyev, E. B. (2013). Scientific and methodical recommendations on multicriteria production control of milking parlors. Zaporozhye: Accent Invest-trade, 156. Available at: http://aliev.in.ua/doc/knigi/kniga_1.pdf
  • Odorčić, M., Rasmussen, M. D., Paulrud, C. O., Bruckmaier, R. M. (2019). Review: Milking machine settings, teat condition and milking efficiency in dairy cows. Animal, 13, s94–s99. doi: https://doi.org/10.1017/s1751731119000417
  • Kuhnhenne, M., Pyschny, D., Kramer, L., Brieden, M., Ummenhofer, T., Ruff, D. C. et. al. (2019). Mechanical and thermal performance of new liner tray solutions. Steel Construction, 12 (1), 23–30. doi: https://doi.org/10.1002/stco.201800025
  • Leonardi, S., Penry, J. F., Tangorra, F. M., Thompson, P. D., Reinemann, D. J. (2015). Methods of estimating liner compression. Journal of Dairy Science, 98 (10), 6905–6912. doi: https://doi.org/10.3168/jds.2015-9380
  • Dmytriv, V., Dmytriv, I., Lavryk, Y., Horodeckyy, I. (2018). Models of adaptation of the milking machines systems. BIO Web of Conferences, 10, 02004. doi: https://doi.org/10.1051/bioconf/20181002004
  • Demba, S., Elsholz, S., Ammon, C., Rose-Meierhöfer, S. (2016). The Usability of a Pressure-Indicating Film to Measure the Teat Load Caused by a Collapsing Liner. Sensors, 16 (10), 1597. doi: https://doi.org/10.3390/s16101597
  • Biradar, D., Abraham, J., Sachin, S., Koundinya, U. (2020). Development of Milking Systems and its Impact on Milk Quality. International Journal of Livestock Research, 8 (12), 1–12. doi: https://doi.org/10.5455/ijlr.20180317120751
  • Besier, J., Lind, O., Bruckmaier, R. M. (2015). Dynamics of teat-end vacuum during machine milking: types, causes and impacts on teat condition and udder health – a literature review. Journal of Applied Animal Research, 44 (1), 263–272. doi: https://doi.org/10.1080/09712119.2015.1031780
  • Paliy, A. P., Nanka, O. V., Lutcenko, M. M., Naumenko, O. A., Paliy, A. P. (2018). Influence of dust content in milking rooms on operation modes of milking machine pulsators. Ukrainian Journal of Ecology, 8 (3), 66–70. Available at: https://www.ujecology.com/articles/influence-of-dust-content-in-milking-rooms-on-operation-modes-of-milking-machine-pulsators.pdf
  • Paliy, A., Nanka, A., Marchenko, M., Bredykhin, V., Paliy, A., Negreba, J. et. al. (2020). Establishing changes in the technical parameters of nipple rubber for milking machines and their impact on operational characteristics. Eastern-European Journal of Enterprise Technologies, 2 (1 (104)), 78–87. doi: https://doi.org/10.15587/1729-4061.2020.200635
  • TU 2539-007-76503135-2011. Soskovaya rezina DD 00.041A dlya komplektatsii doil'nyh stakanov (2011). Available at: https://docs.cntd.ru/document/437156326
  • GOST 9.030-74. Unified system of corrosion and ageing protection. Vulcanized rubbers. Method of testing of resistance to attack by corrosive media in limp state. Available at: https://docs.cntd.ru/document/1200015025
  • Shevchenko, I. A., Aliev, E. B. (2013). Automated control systems for technical processes in dairy farming. Annals of Warsaw University of Life Sciences – SGGW. Agriculture (Agricultural and Forest Engineering), 61, 41–49. Available at: http://aliev.in.ua/doc/stat/2013/stat_4.pdf
  • Milking machine tester. Operation manual (2013). Zaporozhye, 36. Available at: http://aliev.in.ua/doc/rozrobki/tester/tester_ekspluataciya.pdf
  • Paliy, A., Naumenko, A., Paliy, A., Zolotaryova, S., Zolotarev, A., Tarasenko, L. et. al. (2020). Identifying changes in the milking rubber of milking machines during testing and under industrial conditions. Eastern-European Journal of Enterprise Technologies, 5 (1 (107)), 127–137. doi: https://doi.org/10.15587/1729-4061.2020.212772
  • Fahim, A., Kamboj, M., Sirohi, A., Bhakat, M., Prasad, S., Gupta, R. (2018). Milking machine induced teat reactions in crossbred cows milked in automated herringbone milking parlour. Indian Journal of Animal Sciences, 88 (12), 1412–1415.
  • Gálik, R., Boďo Š Staroňová, L. (2016). Monitoring the inner surface of teat cup liners made from different materials. Research in Agricultural Engineering, 61 (Special Issue), S74–S78. doi: https://doi.org/10.17221/50/2015-rae
  • Xu, Y., Feng, L., Cong, H., Li, P., Liu, F., Song, S., Fan, L. (2020). Preparation of TiO2/Ser filler with ultraviolet resistance and antibacterial effects and its application in SBR/TRR blend rubber. Journal of Rubber Research, 23 (2), 47–55. doi: https://doi.org/10.1007/s42464-020-00035-x
  • Palyi, A. P., Makshei, A. N., Kasianenko, O. I., Petrov, R. V., Faly, L. I., Palyi, A. P. (2020). Distribution, bioecological peculiarities of staphylinids (Coleoptera, Staphylinidae) in livestock biocenoses of forest-steppe and steppe Ukraine. Biosystems Diversity, 28 (1), 24–28. doi: https://doi.org/10.15421/012004