Milking machines up to 10 cows (oil type)

Milking machine "Byrenka-1 3000" oil is designed for use in domestic conditions and consists of two main parts: a vacuum unit (1) and a milk bucket (2) with milking equipment (3).

They are placed separately from each other and are connected by a vacuum hose 2 m long. This design allows the hose to be extended up to 10 m, this makes it possible to take the vacuum installation to another room or to the required distance from the cow.

For the milking machine to work, a constant and stable working vacuum is required, which is created using a vacuum pump.

The vacuum unit of the milking machine consists of an electric motor and an oil rotary pump that is installed on the motor shaft without any couplings or pulleys. Such a structure of the milking machine makes it small and compact, but at the same time powerful and highly productive.

The vacuum pump of an oil rotary type with natural air cooling is designed to create a vacuum of vacuum necessary for normal operation of the milking machine and productive milking of cows. It easily starts and works in the cold season, and does not freeze, unlike oil pumps of the circulating type, as the drip oil supply is used.

Inside the vacuum pump, there is a rotating rotor (1), within which textolite vanes (2) move freely. To create a vacuum and a snug fit of the vanes to the walls of the pump, vacuum oil is supplied by means of a drip oiler. During the rotation of the rotor blades move in grooves, changing the working volume in the chamber. When suction occurs, an increase in volume occurs, which creates a vacuum between the blades, and when the volume decreases between them, the pressure increases and the air is released through the muffler, in which waste oil is separated and discharged into a sump.

The milking machine works thanks to a push-pull milking system (squeezing and sucking) with a pulsation frequency (65 ± 5) pulses per minute and the use of milking cups.

The two-dimensional design of teat cups consists of two chambers:

• Outdoor, which is located between the interdigital rubber and the inside of the teat cup, and is connected to the pulsator through the manifold distributor;
• The inner one, which is inside the nipple rubber and connects to the collector to collect and discharge milk into the milking bucket. A stable vacuum is maintained in the inner chamber in the range of 47 to 52 kPa.

  Vacuum and air are alternately applied to the outer chamber with the help of a pulsator, this causes pulsation of the nipple rubber. In the sucking mode, there is a constant vacuum in the outer and inner chambers of the teat cup, under its influence the milk flows from the udder. In compression mode, atmospheric pressure enters the outer chamber and the nipple rubber contracts, pinching the nipple.