Milking machice pump

Milking machine is composed of vacuum pump and milker.
The former mainly includes vacuum pump, motor, vacuum tank, vacuum regulator, vacuum pressure gauge, etc. The latter consists of milking bucket, pulsator (or pulsator), milk collector, milking cup and some ducts and rubber tubes. Each set of milkers includes 8 to 10 pairs of milkers for 100 to 120 cows. The new pipeline milking machine has no milk barrel. Milk is flowed through the milking cup through the milking device and directly into the milk storage tank by the pipeline, which is completely isolated from the outside world. It can automatically adjust the vacuum pressure of the milking cup according to the milk flow, and it can automatically fall off after milking, so as not to “empty the car”. The milk storage tank is made of stainless steel. The tank is sandwiched with serpentine tube. It is connected with refrigerant such as Freon 20. There are two electric mixers in the tank, which can rapidly reduce the temperature of milk to 2-3 C.
Milking machines have two and three beats. At present, the two-beat pattern is mostly used. Its working principle is shown in the figure.
1. Bimetre
The so-called two-beat is that when the milking machine starts, it produces two beats in one beat. The first rhythm is sucking rhythm. At this time, there is a vacuum in the nipple chamber and the wall chamber, and the rubber case is in normal condition. Because of the pressure difference between the nipple tube and the nipple chamber in the nipple, the nipple sphincter opens and milk is sucked into the nipple chamber, which then flows into the milk bucket (or storage tank).
The second beat is the compression rhythm, when the nipple chamber is still in a vacuum, while the wall chamber enters the air. At this time, the rubber sheath is compressed due to the pressure difference between the two chambers, the sphincter closes, and the milk stops flowing out. The purpose of pressing rhythm is to massage the nipple by pressing to restore the blood flow on the nipple which is blocked by sucking rhythm.
The pulsation frequency of two-beat milking machine is generally 48-60 times per minute. The ratio of sucking rhythm to squeezing rhythm is 1:1 in a pulsating time, and can also be adjusted to 2:8 or 3:7 or 4:6. When milking with a two-beat milking machine, there is always a vacuum under the nipple, so that the nipple (i.e. the nipple cup) will gradually touch the nipple and breast. After 3-4 minutes of milking, although the milk has not been completely milked, the communication between the nipple and the breast is blocked, thus the exclusion of the nipple is stopped and the shortcomings of milk not easy to be exhausted are easy to occur. But because there is no rest rhythm, the milking speed is faster than the three-beat pattern.
When there is a vacuum between the inner casing and the outer casing of the inner casing, milk will be sucked out of the nipple tube. When there is a vacuum in the inner casing of the milking cup, but not between the inner casing and the outer shell, the nipple stops discharging and rests. In normal operation, the inner sleeve is kept vacuum, and the inner sleeve and the outer shell are controlled by the pulsator, sometimes vacuum, sometimes filled with air.
2. Trimetre
In addition to sucking and pressing two beats, the three-beat milking machine also adds a third beat, i.e. rest beat. This is easy to eliminate the shortcomings of the two-beat milking machine. But milking is slower. The time of three beats in a pulse is approximately 45% sucking, 15% squeezing and 40% rest.

A pump for milking machines.

Milking machice pump

Milking Machine Pump of Advantages

1. Uninterrupted work, high efficiency, low noise.
2. Separate shell design, easy to disassemble and internal inspection.
3. The integrated rotor structure and the three-blade rotor on the shaft make the noise low and the vibration small.
4. No internal lubrication is needed to prevent oil spill back to the vacuum side which continuously produces vacuum.
5. There is no oil mist diffusion on the exhaust side to provide a clean working environment and ensure the health of workers.
6. It can operate under atmospheric pressure with wide pressure range and stable performance (it can shut down operation).
7. No wear and tear, long-term continuous operation, simple maintenance and management.
8. The leakage of compressed gas can be recovered.
9. Simple structure and long life.

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