SU1449066A2 - Apparatus for milking cows - Google Patents

Abstract

This invention relates to agriculture. The purpose of the invention is to increase the efficiency of milking. The milking device comprises a pulsator 1, a collector 4, up to / 7 silt glasses 8 with an annular thickening 10 in the lower part. Parts of the interstitial chamber of each teat cup communicate with each other by a calibrated channel 23, which is made in thickening 10 and equipped with a throttle in the form of an adjusting screw 26. When sucking the milk, the vacuum from one part of the interstitial chamber through the calibrated channel spreads to another part, which reduces the compressive force of the teat from the last part. To adjust the compressive forces in each teat cup, simply turn the screw 26 without disassembling the teat cup 8. 1 h. the item of f-ly, 4 ill. (L ho fieL

Description

The invention relates to agriculture, in particular to machine milking of cows, and is an improvement of the device according to the authors. St. No. 1165316.

The purpose of the invention is to increase the efficiency of milking and reduce maintenance costs due to the possibility of changing the force of compression of the nipples without disassembling the teat cups.

FIG. 1 shows a device for milking cows; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a section BB in FIG. one; in fig. 4 - adjusting screw.

The device for milking contains a membrane pulsator 1 paired milking, having chambers 2 and 3 of constant pressure, a manifold 4 with a milk chamber 5, a main air distribution chamber 6 and an additional chamber 7, teat cups 8 including a sleeve 9 (not shown) made in of its lower part by an internal thickening 10, with branch pipes 11 arranged in one vertical and horizontal plane, and diametrical longitudinal projections made along the entire length of the sleeve, forming grooves 13, having in cross-section tr petsievidnuyu form teatcup tube 14 with longitudinal trapezoidal in cross-section the ribs 15, the viewing cone 16 mounted directly in the teatcup liner. The nipple tube 14 has a wall thickness of variable height, and with its ribs 15 is installed in the grooves 13. In its upper part, the nipple tube has convex cavities 17 that copy the upper oral cavity of the calf.

Diametrically located wall sections near the nipple tube, near the suction cup are made curved in the longitudinal direction. At this point, the nipple tube can be made with diametrically located convex sections.

The intermixer chamber of the teat cup 8 with the ribs 15 of the nipple tube is divided into two parts 18 and 19, which by hoses 20 and 21 communicate with the additional and main air distribution chambers of the collector 4, which in turn communicate with the chambers 2 and 3 of the alternating pressure of the pulsator 1.

The diameter of the opening of the thickening 10 of the sleeve 9 is equal to the distance between its protrusions 12, and the height of the thickening 10 being equal to the height of the part of the viewing cone 16 inserted into the sleeve. The dairy chamber of the collector 5 is connected to the spouting chambers 22 of the teat cups and the milk wire (not shown). The hole of the annular thickening and the part of the nipple tube located in it are made identical in shape.

In the thickening 10, the sleeves 9 of each teat cup 8 on the side of both parts of the interwall chamber are calibrated

0

25

20

thirty

35

40

45

50

55

holes 23 and the annular recess 24, communicated with each other and forming a calibrated channel, informing both parts of the interwall wall. From the outer end of the bulge 10 of the sleeve 9 opposite to one of the holes 23 there is a threaded hole 25 in which a throttle is installed in the form of an adjusting screw 26 equipped with a spring 27, i.e. providing a change in the live section of the calibrated channel informing both parts of the wall of each teat Cup.

Milking device works as follows

in a way.

When the chamber 3 of the pulsator 1 is open, the discharge from the chamber 2 of the pulsator spreads into the chamber 6 of the collector 4 and further into part 19 of the interwall chamber of the teat cup 8. Since vacuum is applied in the spouting chamber 22, the nipple tube from the side 19 of the interwall chamber will be rectified condition.

At the same time, the atmospheric pressure from the chamber 2 of the pulsator 1 spreads into the chamber 7 of the collector 4 and further along 1 line 20 to the part 18 of the interstice chamber of the teat cup 8.

At the same time, under the action of the vacuum in the spouting chamber, the right part of the search tube 14 is gradually squeezed down (as the rubber of the tube has a wall thickness increasing towards the bottom of the glass).

When squeezing the nipple tube, suction of milk occurs while simultaneously squeezing it out. At this time, the nipple is simultaneously affected by forces — a positive pressure that provides one-sided compression of the nipple in the direction from the base to the end, and a negative pressure due to vacuum under the nipple, i.e., the calf sucking is copied.

When sucking milk, the udder nipple is slightly bent due to the convex cavity on the side of the interstitial chambers and is pinched somewhat like the calf tongue in the tact of sucking, which causes an increase in milk flow stimulation.

At the same time, the vacuum from part 19 of the interwall chamber along the annular recess 24 and through the calibrated channel 23, equipped with an adjusting screw 26, spreads to part 18 of the interwall chamber of the teat cup, which somewhat reduces the nipple compression force on the side of part 18 of the interwall chamber. The maximum squeezing force of the nipple will be when the hole 23 is completely closed, and the minimum is when the nipple is completely open. To adjust the squeeze force in each teat cup, it is enough to turn the screw 26 without disassembling the teat cup, which ultimately increases the efficiency of the milking, since the necessary squeezing force and its sameness for each cup is always possible and

simply enough to adjust, and depending on the individual characteristics of the cow. At the same time for these purposes there is no need to disassemble and assemble the teat cup, which greatly reduces maintenance costs.

After switching the valves of the pulsator 1, the suction process is repeated, only a part of the nipple tube 14 begins to compress from top to bottom due to the effect of atmospheric pressure in part 19 of the interstitial chamber of the teat cup 8. In this case, the vacuum spreads from part 18 to part 19 of the interstitial chamber, thereby slightly reducing the force of compression of the nipple from the side of part 19 of the wall chamber of the teat cup 8.

A-4

By alternately compressing the nipple on one side and then on the other hand, the teat cups swing slightly in the horizontal and vertical planes, the copier pushing the udder of the calf, which causes an increase in the intensity of the moloks1 () t

cottages.

Claims (2)

1. Device for milking cows according to ed. St. No. 1165316, characterized in that, with in order to increase the efficiency of milking, parts of the interwall chamber of each teat cup are connected to each other by a calibrated channel, which is made in the inner ring thickening of the hilcha. 2. The device according to claim 1, characterized in that the channel is provided with a choke. ss nineteen FIG. 2 Fi9.3