RU2531908C2 - Teat cup of squeezing principle of action - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: teat cup of squeezing principle of action comprises a housing 1 with a nipple tube 2 and a deformer 23 for squeezing the nipple base driven by the piston 7. The deformer 23 is made in the form of the plates 24, 25, one of which 24 is rigidly fixed by means of racks 26 on the rods 10 of the piston 7, the second plate 25 is fixed to the levers 27 pivotally mounted on the rods 10 and extending through the support rings 28. The piston 7 of the cylinder 6 by means of two rods 10 extending through the housing 1 is rigidly connected to the lever 11 of the valve 12 of the pressure switch 13, located on the opposite side of the teat cup. The chamber 14 of the pressure switch 13 through the opening 15 in the housing 1 is communicated with the intermural chamber 16 formed by the nipple tube 2 and the housing 1 of the cup. In the housing 17 of the pressure switch 13 the opening 18 is made for communicating of its chamber 14 with the cavity of the milk pipe 4, and an opening 21 for accessing the overpressure overlapped in the initial condition by the flap 12.

EFFECT: invention reduces the incidence of mastitis in cows.

1 dwg

Description

The invention relates to agriculture, in particular for the mechanization of animal husbandry, and can be used for milking cows.

Known milking cup squeezing the principle of action [SU 1178366 A1, A01J 5/08, 09/15/1985], comprising a housing with located in it in the longitudinal direction of the petals for deformation of the nipple and the mechanism of the petals, made in the form of a bellows.

Known milking cup squeezing principle of action [SU 1175402 A1, A01J 5/04, 08/30/1985], containing a sleeve, inside which is located attached to her nipple rubber, made in the form of a truncated cone, facing one base in the direction of the milk tube mounted in the shell attached to the end face of the nipple rubber.

However, these devices do not provide increased efficiency of machine milking.

Closest to the invention is a milking machine [SU 1371640 A1, A01J 5/04, 02/07/1988], including three-chamber milking cups, a collector, a main pulsator and an additional pulsator. An additional pulsator consists of two sections with control cameras. Vacuum from the pulsator enters the control chambers at the same time. Throttling of the vacuum in one case through one passage chamber, and in the other through two passage chambers leads to an adjustable shear at the beginning of the operation of the chambers of the milking cup.

However, this milking cup also does not increase the efficiency of machine milking.

The objective of the invention is to increase the efficiency of machine milking of cows.

To achieve this, the milking cup of the squeezing principle of action contains a deformer for clamping the base of the nipple, made in the form of plates driven by levers and racks mounted on the cylinder rods. The supply of excess and vacuum pressure to the interstitial chamber is controlled by a pressure switch mounted on the housing of the milking cup. The cylinder piston with two rods passing through the housing is rigidly connected to the lever of the pressure switch flap located on the opposite side of the teat cup. The nipple tube is made with wall thickness thickening towards the bottom and with a stiffening ring at the location of the sphincter of the nipple. A calibrated hole is made in the milk pipe for air to enter its cavity.

The invention will be understood from the following description and the attached drawing.

Figure 1 presents a milking cup squeezing the principle of action.

The milking cup of the squeezing principle of action contains a housing 1, inside of which there is a nipple tube 2 with a wall thickness thickening to the bottom and with a stiffening ring 3 at the location of the sphincter of the nipple. The teat tube 2 is connected to the milk pipe 4 to create a vacuum pressure in the suction cup 5 and transport the milk to a milk receiver (not shown). Outside of the housing 1 is a cylinder 6 with a spring-loaded piston 7, to which a pipe 9 from a pulsator (not shown) is connected through a three-way valve 8. The piston 7 of the cylinder 6 by means of two rods 10 passing through the housing 1, is rigidly connected to the lever 11 of the damper 12 of the pressure switch 13, located on the opposite side of the milking cup. The chamber 14 of the pressure switch 13 through the hole 15 in the housing 1 is in communication with the inter-wall chamber 16 formed by the teat tube 2 and the housing of the cup 1. In the housing 17 of the pressure switch 13, a hole 18 is made for communication of its chamber 14, through the pipe 19, with a cavity 20 of the milk pipe 4, as well as an opening 21 for accessing overpressure through a pipe 22 from a compressor (not shown). In the initial state, the hole 21 is blocked by a shutter 12. In the upper part of the milking cup there is a deformer 23 for compressing the base of the nipple, made in the form of plates 24, 25. The plate 24 by means of struts 26 is rigidly fixed to the rods 10 of the piston 7. The plate 25 is fixed to the levers 27, pivotally mounted on the rods 10 and passing through the support rings 28. A calibrated hole 29 is made in the milk pipe for air to enter its cavity.

A milking cup squeezing the principle of operation works as follows.

The milking cup through the pipe 22 is connected to a source of excess pressure (not shown), through the pipe 4 to the milk receiving device (not shown), through the pipe 9 to the pulsator (not shown). A three-way valve 8 blocks access to pulsating vacuum pressure, for example 45 kPa, allowing access to atmospheric pressure in the cylinder 6. A milking cup is put on the nipple of the udder and a three-way valve gives access to pulsating vacuum pressure in the cylinder 6. The incoming vacuum pressure into cylinder 6 drives the piston 7 The piston 7 by the rod 10 moves the rack 26 rigidly fixed thereon, on which the plate 24 of the deformer 23 is mounted, and also moves the lever 27 pivotally mounted on the rod, to tory, passing through the support ring 28, moves the plate 25 towards the plate 24. Thus there is a clamping base udder teat. At the same time, the piston rod 10 moves the lever 11 of the shutter 12, which, allowing access to overpressure, for example 30 kPa, through the opening 21 into the chamber 14 of the pressure switch 13, blocks the access to the vacuum pressure through the hole 18. The overpressure entering the chamber 14 through the hole 15 enters the interstitial chamber 16 and gradually compresses the nipple tube 2 with a thickening wall thickness from top to bottom, thereby squeezing the milk from the nipple. The atmospheric air entering through the calibrated hole 29 in the milk pipe 4 promotes the intensive movement of milk. The stiffening ring 3 prevents pinching of the teat tube 2 at the location of the sphincter of the nipple. Thus, the squeeze cycle occurs. In the beat, the atmospheric pressure received from the pulsator in the cylinder 6 returns the spring-loaded piston 7 to the extreme right position, with it the rod 10 of the strut 26 and the lever 27 opens the plates 24 and 25. At the same time, the rod 10 moves the lever 11 of the shutter 12, which blocks access excessive pressure through the chamber 14 into the inter-wall chamber 16 and allows access to a vacuum pressure, for example 5 kPa, which prevents the teat tube 2 from being compressed. The cycle is completed. When you change the beat in the pulsator, the process repeats.

After milking is completed, the milking cup of the squeezing principle of action is disconnected from the sources of vacuum and excess pressure and removed from the udder.

The use of this milking glass squeezing the principle of action will reduce the incidence of udder of cows with mastitis by 8-10%.

Information sources

1.SU 1178366 A1, A 01 J 5/08, 09/15/1985.

2. SU 1175402 A1, A 01 J 5/04, 08.30.1985.

3.SU 1371640 A1, A 01 J 5/04, 02/07/1988.

Claims (1)

A milking cup with a squeezing principle of operation, including a housing with a teat tube and a deformer for compressing the base of the nipple with a drive from the piston, characterized in that the deformer for compressing the base of the nipple is made in the form of plates, one of which is rigidly fixed to the piston rods by means of racks, and the second plate mounted on levers pivotally mounted on the piston rods and passing through the support rings; the piston of the cylinder by means of two rods passing through the housing is rigidly connected to the lever of the damper of the pressure switch located on the opposite side of the milking cup; a pressure switch chamber through an opening in the housing is in communication with an inter-wall chamber formed by a teat tube and a cup body; an opening was made in the pressure switch housing for communication of its chamber with the cavity of the milk nozzle, as well as an opening, in the initial state blocked by a shutter, for accessing excess pressure from the compressor.