| 摘要 |
FIELD: agriculture.SUBSTANCE: invention relates to dairy cattle husbandry. The proposed milking machine comprises two-chambered teat cups 1, milk-vacuum hoses, a collector 2, a pulsator 3, an attachment 4 with the milk chamber 21 and a thermostatic bellows 20, an executive mechanism. The pulsator comprises chambers of constant 8 and alternate 9 vacuum, the chamber of constant atmospheric pressure 10 and the control chamber 11. The housing of the pulsator 3 is aligned axially with the housing of the attachment 4 and mounted over it to form together with the attachment 4 the transverse partition 7, which is a base of the control chamber 11 of the pulsator 3. The transverse partition 7 is provided with a central opening 18 in which a rod 19 is vertically arranged. In the upper end of the rod 19 a profiled groove with a radial recess is made provided with an additional valve with an axial opening and the ability of axial displacement. The executive mechanism and a valve 14 with a spring 16 are located above the transverse partition 7. The executive mechanism is made in the form of a suction cup 27. The suction cup 27 is attached to the additional valve 24 of the rod 19 which is fixed with its lower end to the thermostatic bellows 20 of the milk chamber 21 of the attachment 4. The rod 19 is provided with a channel 26 capable to communicate the suction cup 27 and the control chamber 11 of the pulsator 3 with the milk chamber 21 of the attachment 4.EFFECT: invention protects tissues of the animal udder from harmful effect of vacuum in overexposure of the teat cups on the udder teats and eliminates "dry milking".2 dwg |
