TWO-STROKE MILKING MACHINE OF PAIRWISE MILKING Russian patent published in 2015 - IPC A01J5/02 

FIELD: agriculture.

SUBSTANCE: two-stroke milking machine of pairwise milking comprises two-chamber teat cups 1 and 2, a pulsator 3, a vacuum distributor with two alternating vacuum chambers operating in opposite phases, a milk-vacuum hose 4, a collector 5 with the milk-collecting chamber 11 with an upper position of the outlet milk pipe 15 and the suction tube 12 with a protrusion 18 on its lower end in the area of the inlet opening and a valve 13 with a washer 29 over the upper, in the area of location of the outlet milk pipe. The bottom of the milk-collecting chamber 11 of the collector 5 comprises a central opening 16 provided with a pipe 17, in which a protrusion 18 of the suction tube 12 is placed, located below its inlet openings 20 and made cylindrical with the abutment 19 at its end, located outside the pipe 17. The upper end of the suction tube 12 is aligned along the outside diameter with the valve 13. The suction tube 12 is made with the ability of axial movement. The outlet of the suction tube 12 is made radial below the valve in size equal to the opening of the outlet milk pipe 15 of the collector 5 and is aligned with it in the upper end position of the suction tube. In the lowermost position of the suction tube 12 the valve surface 13 overlaps the surface of the outlet milk pipe 15. The valve 13 washer 29 is made in the form of an abutment valve mounted in the upper part of the collector 5 in the chamber. The chamber 30 cavity, located below the abutment valve, is connected to the cavity of the outlet pipe 15, and the cavity above the abutment valve through the opening 32 is connected with the atmosphere. The cylindrical protrusion 18 is provided with a guide groove 34. The side wall of the lower pipe 17 of the collector 5 is provided with a lock 35.

EFFECT: stable vacuum mode of the milking machine operation, increase in suction capacity while increasing the operational reliability and quality of the milk obtained, elimination of drainback of milk, which has a positive effect on the health of cows, enables to disconnect reliably the vacuum from the suspended part of the milking machine automatically, at its random falling from the cow udder.

3 cl, 6 dwg