RU2224421C2 - Weight compensating device for milking unit - Google Patents

Abstract

FIELD: agricultural engineering. SUBSTANCE: weight compensating device is mounted on milk claw and is equipped with retainer for vacuum branch pipe. Retainer is made in the form of opening with non-metallic bushing mounted therein. Opening is offset with respect to center of gravity of weight compensating device. EFFECT: increased efficiency in milking of cows with not uniformly developed udder. 2 cl, 3 dwg, 1 tbl

Description

 The invention relates to agriculture.

 It is known that quarters of the udder of a cow are developed unevenly, and usually the rear nipples are located below the front. When milking cows with a relatively heavy collector, the front nipples extend longer than the rear and protrude cleaner. In this case, the effect of crawling of the teatcups on the rear nipples and their incomplete extrusion is possible.

 It is known that to eliminate this drawback in some milking machines, milk tubes for the rear nipples are shorter than for the front. [Korolev V.F. Milking machines - M .: Mechanical Engineering, 1969, p. 89].

 However, the disadvantage of this is that milking machines with shortened tubes for the rear nipples are not suitable for milking cows with a uniformly developed udder.

 It is also known that experienced milkmaids when milking some cows put on milking cups so that the milk hose is directed not forward, but backward. At the same time, the rear nipples are pulled more, since part of the weight of the milk hose is added to the weight of the teat cups and collector [Korolev V.F. Milking machines - M .: Mechanical Engineering, 1969, p. 89].

 However, the disadvantage of this is that the angle of the milk hose is set "by eye" based on experience.

 Known collector with variable weight, including a housing, distribution and milk collection chambers, milk and vacuum pipes. On the milk pipe there is a chamber with a piston provided with a protruding outward screw having the shape of a half cylinder, and one of the walls of the chamber is made in the form of a fixed half nut for the said screw. In addition, the screw has a scale, and the chamber with the piston is removable [AC SU 1470256 A1, cl. A 01 J 7/00. Claim 07/13/87. Publ. 04/07/89. Bull. thirteen].

 However, the disadvantage of this variable-mass collector is that this collector is filled with milk during milking, and an additional operation is required for its sanitary and technological maintenance.

 Closest to this invention is the change in weight of the hanging part of the milking machine due to the additional load. It is known that the weight of milking cups, together with the collector and hoses, is about 3.3 kg. However, not everyone considers this sufficient. In practice, they try to increase the weight of the teatcups by imposing an additional load on the collector when milking some cows in order to get better results [Korolev V.F. Milking machines - M .: Mashgiz, 1962, p. 117].

 However, the disadvantage of such an additional load hanging is that the weight of the collector is never evenly distributed over all the nipples.

 From a physiological point of view, the most appropriate is the weight distribution, in which the largest part of it falls on the teat cups mounted on the nipples of the posterior udder of the animal, and not on the collector.

 The purpose of the invention is to increase the efficiency of milking cows with an unevenly developed udder.

 The goal is achieved by the fact that the weight compensator of the milking machine is equipped with a clamp tube vacuum tube. The latch is made in the form of an opening with a non-metallic sleeve installed in it, offset from the center of mass of the weight compensator of the milking machine.

 Figure 1 shows a pair of weight compensators milking machine.

 Figure 2 shows the weight compensator of the milking machine located on the tube of the vacuum pipe when milking cows with an unevenly developed udder.

 Figure 3 shows the weight compensator of the milking machine, located on the collector and fixed on the tube of the vacuum pipe.

 The weight compensator of the milking machine 1 is located on the collector 8 of the milking machine. The weight compensator of the milking machine 1 is equipped with a latch 2 of the tube 7 of the vacuum pipe 6. The latch 2 is made in the form of a hole displaced relative to the center of mass of the weight compensator of the milking machine 1. A non-metal sleeve 3 with flanges 9 is installed in the latch 2; Non-metal sleeve 3 can be made of rubber . The shoulders 9 are located on both sides of the outer diameter of the sleeve 3. The tube 7 of the vacuum pipe 6 is threaded through the hole of the lock 2. The set of weight compensators of the milking machine 1 (with a mass sufficient to pull the milking cups) is selected according to the table based on the weight of the hanging part of the milking machine (cm . table).

 The weight compensator of the milking machine operates as follows.

 Before milking (according to the table), a pair of weight compensators of the milking machine 1 is selected based on the weight of the hanging part of the milking machine. The weight compensators of the milking machine 1 are superimposed on the collector 8, while the tube 7 of the vacuum pipe 6 is threaded through the hole of the latch 2. When milking a cow with a uniformly developed (stepless) udder, a pair of weight compensators of the milking machine 1 remains on the collector 8, making the hanging part of the milking machine heavier and preventing crawling of the teat cups 5 onto the nipple 4 of the udder of the animal, increasing the purity of extrusion.

 If the bottom of the udder of the animal is stepwise, then the milkmaid when putting on the milking cups 5 on the nipples 4 moves the pair of weight compensators of the milking machine 1 up the tube 7 closer to the vacuum pipe 6. When putting on the milking cups 5, it should be noted that the latches 2 of the weight compensators of the milking machine 1 should located on the tubes 7 of the vacuum pipe 6 milking cups 5, issuing the rear lobe of the udder of the cow. The latch 2 holds the weight compensator of the milking machine 1 due to the occurrence of a turning moment of forces (since the hole of the latch 2 is displaced relative to the center of mass of the weight compensator of the milking machine 1) and the friction force (due to the non-metallic, for example, rubber, surface of the sleeve 3). The additional load of the weight compensators of the milking machine 1, falling on the rear lobe of the cow udder, redistributes the mass of the hanging part of the milking machine. The rear nipples 4, due to this redistribution, are pulled more strongly, and therefore, the purity of extrusion is increased and the crawl of the milking cup 5 on the nipples 4 of the udder of the cow is reduced.

 After milking, the milkmaid returns the weight compensators of the milking machine 1 to their original position on the collector 8.

Sources of information
1. Korolev V.F. Milking machines - M .: Mechanical Engineering, 1969, p. 89.

 2. A.C. SU 1470256 A1, cl. A 01 J 7/00. Application 07/13/87. Publ. 04/07/89. Bull. thirteen.

 3. Korolev V.F. Milking machines - M .: Mashgiz, 1962, p. 117.

Claims (2)

1. A weight compensator of the milking machine located on a manifold having a vacuum tube, characterized in that the weight compensator of the milking machine is equipped with a latch for positioning the vacuum tube on the tube. 2. The compensator according to claim 1, characterized in that the compensator has an opening with a non-metallic sleeve for the vacuum nozzle installed in it, the axis of the opening being offset from the center of mass of the weight compensator of the milking machine.

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