IDENTIFYING CHANGES IN THE MILKING RUBBER OF MILKING MACHINES DURING TESTING AND UNDER INDUSTRIAL CONDITIONS
| Autor: | Yurii Musiienko, Ludmyla Tarasenko, Oleksandr Kalashnyk, Oleksandr Nechyporenko, Artem Naumenko, Andriy Paliy, Svitlana Zolotaryova, Anatoliy Paliy, Andrey Zolotarev, Larysa Ulko |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
020209 energy
0211 other engineering and technologies milking rubber Energy Engineering and Power Technology 02 engineering and technology Positive correlation complex mixtures Industrial and Manufacturing Engineering Milking shell deformation Animal science Milk yield Natural rubber rubber characteristics Management of Technology and Innovation 021105 building & construction lcsh:Technology (General) 0202 electrical engineering electronic engineering information engineering lcsh:Industry Electrical and Electronic Engineering development Mathematics Applied Mathematics Mechanical Engineering technology industry and agriculture food and beverages rubber parameters Computer Science Applications body regions Control and Systems Engineering Rubber elasticity visual_art Service life visual_art.visual_art_medium lcsh:T1-995 lcsh:HD2321-4730.9 psychological phenomena and processes |
| Zdroj: | Eastern-European Journal of Enterprise Technologies, Vol 5, Iss 1 (107), Pp 127-137 (2020) |
| Popis: | Milking rubber is the only part of the milking equipment that comes into direct contact with the cow’s teats. The task is to establish the high-quality technical and technological characteristics of the rubber liners for milking machines. It has been established that milking rubber after 600‒650hours of operation acquires significant deflection in the range of 5.5±0.03–3.7±0.04mm while a teat cup deformation varies within 1.3±0.02–3.5±0.05mm. A positive correlation dependence of the milking rubber elasticity on the deformation of its teat cup (r=+0.948) has been found. The method of passing the electric discharge was used to assess the readiness of milking rubber for use, whereby a variation coefficient of υ˂10% was determined for the milking rubber DD 00.041A AO «Bratslav», which makes it possible to estimate the product quality. It was found that the change in the mass and volume of milking rubber over 72hours of its treatment with the liquid SZHR-3 at t=150°C exceeds the indicators obtained in contact with the liquid Skydrol LD-4 by more than 2.5times. A positive correlation dependence of the milking rubber mass on its volume (r=+0.965) has been established. It was found that at a rubber tension in the range of 0 to 90N the duration of the deformation loss experienced by the milking rubber shell was not long; it is 0.05‒0.06s. With an increase in the service life of milking rubber to 4 months, there is a decrease in its tension, from 56‒60N to 43‒45N, which adversely affects the maximum speed of milk yield – it decreases by 1.5times. A positive correlation dependence of the milking rubber service life on the level of its bacterial insemination (r=+0.960) has been established |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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