The milking machine comprises the following:
1 — support frame,
2 — milk churn,
3 — milking equipment,
4 — vacuum meter,
5 — piston-type vacuum pump,
6 — reduction gear and transmission gear,
7 — electric motor.
Operation procedure
Milking: As the piston moves down, the ball valve on the pump is closed, while the ball valve on the churn lid is open, thus vacuum is generated in a closed churn and milking equipment. Equal pressure in the internal housing and in the chamber between the inner and outer housings of the cup provides for opening the interior housing of the cup and exhaustion of milk out of the teat. Milk goes to the milk receptor and absorbed into the churn.
Rest: as the piston moves up, the ball valve on the pump lid is open, while the valve on the churn lid is closed. At this time, air enters the chamber between the exterior housing of the cup and the insert, with vacuum generated in the closed churn and in the inner space of the cup. This results in a differential pressure inside the cup and in the chamber between the exterior housing and the cup insert. Differential pressure provides closure of the insert, thus the milk flow stops. During the milking process, the exhaustion value on the vacuum-meter should be within 0.04−0.045 MPa.
DOYUSHKA provides maximum emptying of the udder, thus relieving the operator from manual after-milking.
The milk churn has a removable lid.
The milking equipment comprises a milk receptor, a vacuum regulator, and four cups. In all the cups of the milking equipment, the vacuumetric pressure is equal, which reduces the risk of cross-infection. The transparent insert of milking cups allows controlling the milk flow form each part of the udder separately. The milking equipment and the churn are made of stainless steel.
The small weight of the nozzle of milking equipment facilitates the operating conditions of the milkers, thus providing a more careful handling of the animal’s udder.
Vacuum generation
The pump piston moves reciprocatingly inside the pump housing. As the housing moves down, there occurs exhaustion. As it moves up, the ball valve in the pump lid opens, with the air releasing into the atmosphere. These two motions generate pulsation in the milking equipment. Pulsation provides a stable frequency of 64 pulses a minute, which is natural to the cow.
Advantages
- Milking equipment and a churn of stainless steel
- Stable pulsation frequency
- Stable equal pressure in all cups
- Cups with transparent inserts
