Apparatus for measuring pressure force of teat cup rubber for milking units

FIELD: agricultural engineering, in particular, equipment for controlling operation of milking apparatuses.

SUBSTANCE: apparatus for measuring pressure applied by teat cup rubber to animal teat during operation of milking apparatus has teat cup with rubber including artificial teat with pressure measuring sensor. Bushing of pressure measuring sensor is positioned for displacement along axis of teat cup rubber. Artificial teat is positioned for rotation about bushing axis.

EFFECT: increased precision and convenient handling of apparatus.

2 dwg

 

The invention relates to agriculture, namely, devices for controlling the operation of milking machines.

The known device for determining the deformability of liners, including the installation of a teat Cup on the artificial nipple and monitoring the readings of the recording element. A disadvantage of the known devices is that they do not provide the necessary accuracy in the determination of the elastic properties of the liner and its influence on the teats of the udder of the animal.

A device for determining deformability of liners, including artificial nipple associated channel with vacuum meter and supply line vacuum equipped with channels for supplying atmospheric air and the valve, ensure the floor is made in the form of a spring-loaded sleeve covering the artificial nipple and with controls. Moreover, the control sleeve is made in the form of threads covering the side surface and connecting the sleeve with the lower part of the artificial nipple [A.S. No. 782770, class A 01 J 7/00 Announced. 08.01.79. Publ. 30.11.80, bull. No. 44].

However, a disadvantage of this device is that this device measures the stiffness of the liner on the maximum and minimum magnitude of the vacuum in Podmoskovie cavity, and the controls work of laying the t error in measurement at the stage of compression of the liner, because compression liners they are subjected to strain.

A device to measure the stiffness of the liner in assembled teat Cup containing a source of vacuum tube milking Cup and connected with the tube work body for engagement with the inner wall of the liner, whose connection with the tube made in the form of a hinge. It is also equipped with a system for processing and displaying information, and a working body in the form of two series-connected between the knobs strain having the form of discs of different diameters and located at the side of the tube unit information provided to the sensor element differential measurement of the pressure transducer connected to the said system [A.S. No. 2006198, class A 01 J 7/00 Announced. 16.05.91. Publ. 30.01.94, bull. No. 2].

However, a disadvantage of this device is that it provides control deformation of the liner at idle and pre-parsed milking machine.

The closest to this invention is a device for controlling the stiffness of the liner containing the teat Cup liners rubber that holds the artificial nipple in the lower part of the teat Cup is made of an air nozzle connected to the hose, which is connected with the vacuum - IU the rum and through the orifice to the vacuum line and the indicator. The device is equipped with a carrier rack, a movable roller, axle, lever, spring, Riogordo and power supply [A.S. No. 1042696, class a 01 J 7/00 Announced. 14.04.82, Publ. 23.09.83, bull. No. 35].

However, a disadvantage of this device is that using it to record the deformation of liners for changing the contour of the concave surface of the liner, while not a measure of the pressure of liners provided to the teats of the udder of the animal at all points of contact for the liner and nipple.

The objective of the invention is improving the accuracy and ease of measurement.

The aim is achieved in that the sleeve device for measuring the pressure of liners to the teats of the udder of the animal is able to move along the first axis, and an artificial nipple has the ability to move around the axis of the sleeve.,

1 shows a device for measuring the pressure of liners to the teats of the udder of the animal in the measurement process.

Figure 2 shows a device for measuring the pressure of liners to the teats of the udder of the animal.

Device for measuring pressure of liners to the teats of the udder of the animal contains a milking Cup sleeve 1 (Fig 1), rubber liners 2 and placed in it an artificial nipple 3 with the tube 4. Artificial nipple 3 is made hollow with a longitudinal slit 5, which moves working the body 6. The working body 6 is installed inside the sleeve 7 can move and has a spring 8, which provides unconditional refund first. The sleeve has a screw 9 and technological hole 10 and the ability to move inside the artificial nipple 3.

To prevent damage to the liner 2 working body 6 and freely move in the measured planes working body 6 contains the ball 11. The ball 11 is mounted for rotation in different planes.

The working body 6 provided with a sensor element differential measuring the pressure transducer 12, the signal from which the wire 13 is fed to the processing device 14 and the display device information 15.

The device operates as follows.

Include milking machine and put the teat Cup on the artificial nipple 3 (figure 2). Withstand the operating conditions to stabilize the ratio of cycles of operation of the milking apparatus. Under the action of the pressure in Podmoskovie and annular chambers liner 2 starts to pulse, changing the amount of pressure the liner 2 on an artificial nipple 3 (figure 1). Measurements are made in vertical and horizontal planes.

Measurements in the vertical plane is on the entire working length of the longitudinal slit 5 arts is spent nipple 3 (figure 2). During operation of the milking apparatus in Podmoskovie the camera is set to a constant vacuum in the annular chamber teat Cup alternately alternating vacuum and atmospheric pressure. As a result, when the occurrence of the compression stroke liner 2 due to the pressure drop in the annular chamber teat Cup smoothly deformed, forming a concave increased the surface. When deformation of the liner 2 transmits information about changes in the force exerted by it through the ball 11, the working body 6, a sensitive element of the differential measurement of pressure transducer 12. The pressure transducer 12 converts the change in compression force of the liner 2 in the corresponding electrical signals. Electrical signals through the wires 6 are received in the processing unit 14 and display 15. The spring 8 exerts on the surface of the liner 2 through the working body 6 and the ball 11 is a pressure that does not cause compression of liners standing working body 6 in the artificial nipple 1. For regulating the pressure exerted by the working body 6 on the rubber nipple 2, there is a screw 9, which is accessed through technological hole 10.

Upon the occurrence of stroke sucking liner 3 is straightened, and the working body 6 is moved under the action of the spring 8. When this signal is l, coming from the differential measurement of pressure transducer 12 to the processing device 14 and display 15, is assumed at zero force exerted liners rubber 3 to the teats of the udder of the animal.

Measurements in the horizontal plane is the same as during the rotation of the artificial nipple 1 around its axis. Free movement of the artificial nipple around its axis is provided by a fixed tube 4.

The use of the invention allows testing of milking machines and to study the effect of liners on the teats of the udder of the animal directly in the milking apparatus without disassembly, which in turn improves the quality control and performance.

Device for measuring pressure of liners milking machines to the teats of the udder of the animal in the process of milking apparatus, comprising a teat Cup with rubber liners, which placed an artificial nipple with a sensor for measuring pressure, characterized in that the sleeve device for measuring the pressure of liners to the teats of the udder of the animal has the ability to move along the axis of the liner, and an artificial nipple has the ability to move around the axis of the sleeve.



 

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