PULSATOR FOR MILKING MACHINES Russian patent published in 2015 - IPC A01J5/10 

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture, and namely to dairy farming. A pulsator consists of housing 1 with cover plate 2, on which electric motor 3 with a spline shaft is installed, spool valve 5 and pneumatic cylinder 6. Spool valve 5 is connected to the stock of pneumatic cylinder 6 and the spline shaft of electric motor 3 with a possibility of longitudinal movement along the shaft in housing 1 of the pulsator with the stock of pneumatic cylinder 6 and at the same time rotation under action of electric motor 3. With that, spool valve 5 includes constant vacuum gauge pressure chamber 9 and atmospheric pressure chamber 13. Constant vacuum gauge pressure chamber 9 is interconnected via hole 10 to constant vacuum gauge pressure chamber 11 in housing 1, which in its turn is connected via connection pipe 12 to a vacuum gauge pressure source. Atmospheric pressure chamber 13 is interconnected via hole 14 to constant atmospheric pressure chamber 15 in housing 1, which in its turn is connected to atmosphere via hole 16 in cover plate 2. With that, at rotation of spool valve 5 constant vacuum gauge pressure chamber 11 and constant atmospheric pressure chamber 13 are interconnected in turn with connection pipes 17 and 18, which are connected to inter-wall chambers of two pairs of teat cups, thus providing alternating supply to them both of atmospheric and vacuum gauge pressure.

EFFECT: invention ensures improvement of efficiency of machine milking, namely milking-back degree of cows, and control of pulsation frequency and the ratio of cycles in an automatic mode.

4 cl, 2 dwg