RU95222U1 - MILK ELECTRIC PULSATOR - Google Patents

Abstract

 An electric pulsator of a milking machine, comprising a housing with nozzles of constant and variable vacuum, an atmospheric channel with a filter, a valve connected to a linear motor, characterized in that the valve has a recess opposite the atmospheric channel, and the springs are located on the outside of the magnetic cores.

Description

The technical field to which the utility model relates.

The utility model relates to agriculture, namely to the mechanization and electrification of animal husbandry processes, in particular to pulsators with electromagnetic control.

State of the art

Known electromagnetic pulsator of the 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, wherein the pulsator magnetic circuit is made with an outer part having inner and outer flanges, whose planes are made at the level of the plane of the end of the core, an annular valve seat with holes is made in the outer flange. 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 low reliability, it is not possible to control the amplitude of the valve stroke in automatic mode.

Known electromagnetic pulsator to the milking machine, comprising a housing with an air inlet hole and an electromagnet installed in it, while the housing is made of atmospheric pressure and variable vacuum chambers, which are interconnected through openings switched by the valve, and the switching valve is connected to the armature of the electromagnet via a rod, and with a rod - by means of a hinge, the air intake hole is provided with channels for forming an 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 disadvantages of the analogue is that it has a non-separable design, which does not allow washing of the pulsator, in addition, there is no filter, which leads to contamination of the structure and a decrease in its reliability. As with the first analogue, the valve’s reverse stroke is not controlled 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 abruptly closes during the compression of the nipple rubber, which leads to the ejection of a trickle of milk from the nipple tank into the udder tank, and this in turn not only slows down the milk transfer reflex, but and harms the animal. Ripples are created that do not correspond to the physiological characteristics of the milk transfer process, resulting in reduced cow productivity. In addition, the edges of the nipple rubber during sharp compression injure the tip of the nipple, which leads to inflammation and mastitis in cows, they become unsuitable for machine milking.

The closest in technical essence, the achieved effect and accepted by the authors for the prototype is an electromagnetic pulsator of the milking machine, comprising a housing with air sampling openings, constant and variable vacuum chambers, which are interconnected via a switched valve opening, and the switching valve is connected to the anchor via a rod, characterized in that a linear motor with a prefabricated anchor of two magnetic inserts and a non-magnetic layer attached to the middle is installed in the housing not rod and located between two U-shaped magnetic cores with magnetizing coils (see AS RU No. 79236, class A01J 5/14).

This analogue has the following disadvantages: the complexity of manufacturing the housing and the valve mechanism, as well as the low reliability of the springs due to their constant impact on the inner walls of the magnetic circuits.

Disclosure of invention

The technical result that can be achieved using the utility model is to create vacuum pulsations in the inter-wall chamber of the teat cup that correspond to the physiological characteristics of the milk transfer process, as well as the ability to perform the necessary massage regimes before milking using a simpler valve mechanism of the electropulsator.

The technical result is achieved using an electric pulsator of a milking machine, comprising a housing with constant and variable vacuum nozzles, an atmospheric channel with a filter, a valve having a recess opposite the atmospheric channel, connected to a linear motor, the springs of which are located on the outside of the magnetic circuits.

The use of the inventive electropulsator of the milking machine will simplify the design and its manufacture.

Brief Description of the Drawings

In FIG. sectional view of the electropulsator of the milking machine is presented.

The implementation of the invention

The electropulsator of the milking machine consists of: a housing 1 connected to a linear motor (not shown in FIG.), With a constant vacuum pipe 2 connected to a vacuum wire (not shown in FIG.), And a variable vacuum pipe 3 connected to the inter-chamber chambers a milking cup (not shown in FIG.), and an atmospheric channel 4 with a filter 5. Inside the housing 1 there is a valve 6 connected to the stem 7, which is located on the springs 8 and serves as the basis for the prefabricated anchor 9. The prefabricated anchor 9 is located between two magnetic cores 10 P-o shaped with magnetizing coils 11, 12, the conclusions 13 of which through the seal 14 are connected to the control system (Fig. not shown).

Electropulsator milking machine operates as follows. When the control system of the electropulsator is turned off, valve 6 is in a balanced state, which it allows the springs 8 to take, they are also necessary to eliminate the sticking of the assembly armature 9 to the magnetic cores 10. When the milking machine is turned on, the valve 6 retracts and blocks the constant vacuum pipe 2 , preventing the consumption of vacuum in the system. At the beginning of milking, the control system, depending on the selected mode, provides signals to the coils 11, 12 of the linear motor. The linear motor allows you to control the amplitude of movement of the collection armature 9, which is connected through the rod 7 to the valve 6. When the valve 6 is in its highest position, the vacuum through the nozzles 2 and 3 fills the interstitial chamber of the milking cup, the nipple rubber does not experience deformation, therefore, the milk under the action of the difference pressure inside the udder and under the nipple stream flows into the suction cup, and from it through the milk hose is discharged into the milk receiver. There is a sucking beat. When the valve 6 goes to the extreme lower position, the constant vacuum pipe 2 is closed, the variable vacuum pipe 3 is connected through a recess in the valve 6 with the atmospheric channel 4. Air enters the interstitial chambers through the filter 5, the atmospheric channel 4, the variable pipe 3, and the pressure in them rises to atmospheric. Due to the pressure difference in the chambers of the teat cup, the nipple rubber is compressed, the sphincter of the nipple closes, the flow of milk stops. There is a compression beat. The linear motor allows you to smoothly move the valve 6 to its lowest position, when in the inter-wall chamber of the teat cup there is a transition process from the suction stroke to the compression stroke. This is necessary in order to eliminate the negative impact of the milking machine on animal health and maximize their genetic potential.

A working cycle is formed from the strokes of sucking and compression, the number of cycles is determined by the number of pulsations, the duration of the cycles is regulated by the ratio of ticks. The control system allows you to set the required modes of milking and pre-milking massage of the udder. Pre-milking massage occurs due to an increased number of pulsations; in this mode, incomplete deformation of the nipple rubber occurs, which helps to increase the intensity of milk flow.

Unlike the prototype, the claimed electropulsator of the milking machine has a recess in the valve 6, which allows to simplify the design and manufacture of the entire valve mechanism. In addition, the springs 8 are outside the linear motor, which will increase their durability.

The use of the inventive electropulsator milking machine will allow:

- eliminate the flow of vacuum before milking due to the overlap of the constant vacuum nozzle;

- expand the functionality of milking machines using various modes of milking and pre-milking massage of the udder, depending on the productivity of the animals and the intensity of milk flow;

- prevent pollution and moisture due to the presence of a filter;

- to modernize milking machines at the lowest cost by replacing the used pulsators with the claimed one with connection to the power supply system of the vacuum pump;

- reduce animal injuries and stress during milking;

- increase the productivity of animals;

- reduce the incidence of mastitis.

Claims (1)

An electric pulsator of a milking machine, comprising a housing with nozzles of constant and variable vacuum, an atmospheric channel with a filter, a valve connected to a linear motor, characterized in that the valve has a recess opposite the atmospheric channel, and the springs are located on the outside of the magnetic circuits.