RU79236U1 - ELECTROMAGNETIC PULSATOR OF THE MILKING MACHINE - Google Patents

Abstract

The utility model relates to agriculture, in particular to electromagnetic pulsators of milking machines. The electromagnetic pulsator of the milking machine consists of: a housing 1 connected to a linear motor (not shown in FIG.), A constant vacuum pipe 2 connected to a vacuum wire (not shown in FIG.), And a variable vacuum pipe 3 connected to the interwall cameras of the milking cup (not shown in Fig.), and air sampling openings 4. Inside the housing 1 there is a constant vacuum chamber 5 and a variable vacuum chamber 6, between which a switching valve 7 is located. A switching valve 7 is connected to a stem 8, which the seal 9 is located on the springs 10 and bearings 11. In the middle of the rod 8, a prefabricated anchor 12 of a linear motor from two magnetic inserts 13 and a non-magnetic layer 14 fastened with caps 15 is attached, under which there are balls with springs (not indicated in FIG.). A prefabricated anchor 12 is located between two U-shaped magnetic cores 16 with magnetizing coils 17, 18. The electromagnetic pulsator of the milking machine has on the side a terminal strip 19 with conductors 20 and an oil seal 21. The use of the inventive electromagnetic pulsator of the milking machine will simplify the design, expand its functionality, and reduce injuries animals and stress during milking, increase the milk production of animals, reduce the incidence of mastitis. 1 p. Fig. 1.

Description

The technical field to which the utility model relates.

The utility model relates to agriculture, in particular to electromagnetic pulsators of milking machines.

State of the art

Known electromagnetic pulsator for milking machines, including a housing with a pipe for connecting to a vacuum wire, an electromagnet with an armature - a pneumatic pulsator valve and a magnetic circuit equipped with a sleeve fixed in the magnetic circuit above the anchor with the possibility of axial movement. To prevent sticking of the electromagnet armature, a tip made of non-magnetic material is installed on the sleeve (see A.S. SU No. 180918, class A01J 5/14).

This analogue has the following disadvantages: to control the amplitude of the armature, disassembly of the pulsator is necessary, it is not possible to adjust the amplitude of the armature in automatic mode, it has an inertial retractable armature that is not able to work at higher frequencies to stimulate the milk flow reflex.

Known electromagnetic pulsator of a milking machine, comprising a housing with nozzles of constant and variable vacuum and atmospheric pressure, an electromagnet with a coil and a magnetic circuit containing a core and a freely installed disk armature with a diamagnetic gasket, and the pulsator magnetic circuit is made with an outer part having inner and outer flanges, planes which are made at the plane level

end of the core, in the outer flange is made an annular valve socket with holes. Around the magnetic circuit there is a cylindrical remote insert made of dielectric material with longitudinal channels along the inner surface, and the side of the armature facing the constant vacuum pipe is equipped with an elastic gasket. The anchor has a centering elastic band along the outer cylindrical part with cutouts, and the diamagnetic armature gasket has a ring shape and is located on the outer edge of the plane of the anchor facing the magnetic circuit, and its inner diameter is greater than or equal to the inner diameter of the flange of the outer part of the magnetic circuit. The constant vacuum pipe is movable relative to the housing. The pulsator additionally contains an air filter with a throttle installed in the atmospheric pressure pipe (see AS RU No. 2075928, class A01J 5/14).

This analogue has the following disadvantages: complex design and manufacturing technology, low reliability, there is no way to control the amplitude of the armature in automatic mode.

The closest in technical essence, the achieved effect and accepted by the authors for the prototype is an electromagnetic pulsator to the milking machine, comprising a housing with an air inlet and an electromagnet installed in it, while the housing is made of atmospheric pressure and variable vacuum chambers, which are interconnected via switchable valves holes, and the switching valve is connected to the anchor of the electromagnet through the rod, and to the rod through the hinge, the air intake hole but channels for air flow. The frame of the electromagnet coil is made of a dielectric with a low coefficient of friction, while in the frame there is a coaxial cylindrical hole for installing the armature of the electromagnet (see AS RU No. 1782486, class A01J 5/14).

The disadvantage of the prototype is the lack of the ability to automatically adjust the amplitude of the armature. In addition, all of the listed devices

There is another common drawback - the valve’s reverse stroke is not controllable and occurs when the electromagnet coil is disconnected under vacuum. The valve is attracted to the constant vacuum chamber and sharply opens the air intake openings, as a result of which the nipple rubber sharply closes and milk is ejected from the nipple cistern into the udder cistern, which not only inhibits the milk yield reflex, but also harms the animal. Ripples are created that do not correspond to the physiological characteristics of the milk transfer process, as a result of which animals are injured, their productivity decreases, the incidence of mastitis increases and they become unsuitable for machine milking.

Disclosure of invention

The technical result that can be achieved using the utility model is to create certain pulsations of the vacuum, under the action of which the teatcup nipple rubber compresses the animal’s nipple more slowly than it does, and also has a massaging effect on the udder to stimulate milk production.

The technical result is achieved by means of an electromagnetic pulsator of a milking machine containing a housing with air sampling openings, while the housing is made of constant and variable vacuum chambers, which are interconnected via a valve-switched hole, and the switching valve is connected to the anchor by means of a rod, as well as an additional linear motor with a prefabricated anchor of two magnetic inserts and a non-magnetic interlayer attached in the middle of the rod and located between two magnets toprovodov U-shaped with a magnetizing coil.

The use of the inventive electromagnetic pulsator of the milking machine will simplify the design and expand its functionality,

reduce animal injuries and stress during milking, which will increase milk yield and reduce the incidence of mastitis.

Brief Description of the Drawings

In FIG. sectional view of the electromagnetic pulsator of the milking machine is presented.

The implementation of the invention

The electromagnetic pulsator of the milking machine consists of: a housing 1 connected to a linear motor (not shown in FIG.), A constant vacuum pipe 2 connected to a vacuum wire (not shown in FIG.), And a variable vacuum pipe 3 connected to the interwall cameras of the milking cup (not shown in Fig.), and air sampling openings 4. Inside the housing 1 there is a constant vacuum chamber 5 and a variable vacuum chamber 6, between which a switching valve 7 is located. A switching valve 7 is connected to a stem 8, which the seal 9 is located on the springs 10 and bearings 11. In the middle of the rod 8, a prefabricated anchor 12 of a linear motor from two magnetic inserts 13 and a non-magnetic layer 14 fastened with caps 15 is attached, under which there are balls with springs (not indicated in FIG.). The prefabricated anchor 12 is located between two magnetic circuits 16 of a U-shape with magnetizing coils 17, 18. The electromagnetic pulsator of the milking machine has on the side a terminal strip 19 with conductors 20 and an oil seal 21.

The electromagnetic pulsator of the milking machine operates as follows. Through the pipe 2 constant vacuum chamber 5 constant vacuum fills the vacuum from the vacuum pipe. Through the intake holes 4, atmospheric air enters the chamber 6 of an alternating vacuum. In the chamber 6 of a variable vacuum, a variable vacuum is formed, which through the pipe 3

An alternating vacuum fills the interstitial chambers of the teat cups. The formation of an alternating vacuum occurs due to the reciprocating movements of the switching valve 7. The switching valve 7 in a certain order opens and closes the air inlets 4 and the constant vacuum chamber 5, with the possibility of changing the speed and amplitude of movement. When voltage is applied to the magnetizing coil 17, the current flowing in it induces a magnetic field, the lines of force of which are closed through the magnetic circuit 16, the housing 1 and the magnetic insert 13 of the assembled armature 12. In this case, a magnetomotive force arises, which tends to connect the collective armature 12 to the magnetic circuit 16 and raise it up, thereby the rod 8 with the switching valve 7 rises and the constant vacuum chamber 5 opens. The switching valve 7 continues to move up to the stop of the rod 8 in the cover and closes the air inlet openings 4. Vacuum through the constant vacuum chamber 5, the variable vacuum chamber 6 and the variable vacuum nozzle 3 fills the interwall chambers of the teat cups, thereby sucking. When applying voltage to the magnetizing coil 18, the collection armature 12 is pulled down, lowering the rod 8 with the switching valve 7. By changing the voltage on the magnetizing coil 18, it is possible to control the speed and amplitude of the reverse stroke of the switching valve 7 and thereby control the rate of atmospheric air penetration into the milking chamber cups through the air intake 4.

The electromagnetic pulsator of the milking machine can have a massaging effect on the udder. To this end, the collection armature 12 does not move to its highest position, but stops in an intermediate position at each cycle and thereby only opens the pipe 2 of constant vacuum. In this case, the vacuum in the inter-wall chambers of the teat cups will be significantly less than the nominal value, and the generated pulsations will have only a massaging effect on the udder.

The seal 9 avoids leaks and moisture inside the linear motor. Sliding bearings 11 reduce friction during reciprocating movements of the rod 8. The adhesion of the assembly armature 12 is prevented by the springs 10. The design of the assembly armature 12 of two magnetic inserts 13 and a non-magnetic layer 14 fastened by covers 15, under which the balls with springs are located, allows magnetic fluxes to be separated. The voltage supply of the magnetizing coils 17, 18 occurs through the terminal strip 19 and the conductors 20, the supply to which is through the gland 21.

Unlike the prototype, the claimed electromagnetic pulsator of the milking machine allows you to move the switching valve 7 reciprocating with a controlled amplitude and speed of change of position. Thus, it becomes possible to create certain pulsations of the vacuum in the inter-wall chambers of the teat cups, due to which the compression cycle will be smooth to prevent a sharp closure of the nipple rubber and the ejection of milk from the nipple tank into the udder tank, as well as having a massaging effect on the udder.

The use of the inventive electromagnetic pulsator of the milking machine will allow:

- simplify the design;

- expand the functionality of the design;

- reduce animal injuries and stress during milking;

- increase the milk production of animals;

- reduce the incidence of mastitis.

Claims (1)

An electromagnetic pulsator of the milking machine, comprising a housing with air sampling openings, wherein the housing is made of constant and variable vacuum chambers that are interconnected via a valve-switched opening, the switching valve being connected to the armature via a rod, characterized in that a linear motor is additionally installed in the housing with a prefabricated anchor of two magnetic inserts and a non-magnetic layer attached in the middle of the rod and located between two U-shaped magnetic cores a magnetizing coil.