SU1606054A1 - Vacuum regulator - Google Patents

Abstract

This invention relates to agriculture. The purpose of the invention is to simplify the design. The regulator comprises a housing 1, in the upper part of which a valve mechanism with a rod 5 and a weight 6 is located. In the side wall of the housing 1, an opening 2 is provided for supplying atmospheric air. The bottom of the housing 1 is made in the form of an elastic partition 7, rigidly connected to the rod 5. The damping device is made in the form of a pneumatic chamber 8 having a calibration hole 9 for communication with the atmosphere. When the vacuum pump is turned on, a pressure differential is created on the valve 4, which begins to move upward, and intake air through the opening 2 into the vacuum line. The partition 7 also rises, creating in the chamber 8. Through the calibration hole 9, the pneumatic chamber 8 is slowly filled with air. When the valve 4 stops in the pneumatic chamber 8, atmospheric pressure is established with some delay. The effect of the septum on valve 4 ceases. When the vacuum is lowered, valve 4 is lowered. Overpressure is created in pneumatic chamber 8. Through the calibration hole 9 there is a slow discharge of air. 1 il.

Description

one

(21) 4664440 / 30-15

(22) 03/21/89

(46) 15.11 .90. Bul 1 42

(71) Head specialized design bureau for a complex of machines for cattle farms, Riga

(72) V.A. Ostapchuk and Z.Ya. Zalkalns

(53) 637.125 (088.8)

(56) USSR Copyright Certificate № 852283, cl. A 01 J 7/00, 1980.

(54) VACUUM REGULATOR

(57) The invention relates to agriculture. The purpose of the invention is to simplify the design. The controller includes a housing 1, in the upper part of which there is a valve mechanism with a rod 5 and a load. A hole 2 for supplying atmospheric air is made in the side wall of the housing. The bottom of the housing 1 is made in the form of an elastic partition 7, rigidly connected

2

with a rod 5. The damping device is made in the form of a pneumocamera 8 having a calibrated orifice 9 for communication with the atmosphere. When the vacuum pump is turned on, a pressure differential is created on the valve 4, which begins to move upwards, letting in air through the opening 2. into the vacuum pipe. Bulkhead 7 also rises, creating a vacuum in the chamber .8. Through the calibrated hole 9, the pneumatic chamber 8 is slowly filled with air. When the valve 4 stops in the pneumatic chamber 8, atmospheric pressure is established with some delay. The effect of the septum on valve 4 ceases. When the vacuum is lowered, valve 4 is lowered. Overpressure is created in pneumatic chamber 8. Through the calibrated hole 9 there is a slow discharge of air. 1 il.

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The invention relates to agriculture, in particular to vacuum regulators.

The purpose of the invention is to simplify the design of the controller.

The drawing shows schematically the proposed vacuum regulator, a section. The vacuum regulator has a housing 1, in the upper side of which a hole 2 is made for air leaks. A valve mechanism with a sleeve is installed coaxially with the housing. 3, closed with a cone valve 4 rigidly mounted on the rod 5, at the lower end of which a weight 6 is fixed. The bottom of the body is made in the form of an elastic partition 7.

A damping device made in the form of a pneumatic chamber 8 adjoins the lower part of the housing 1. The pneumatic chamber 8 communicates with the atmosphere through a calibrated orifice 9. The partition 7 is rigidly attached to the rod 5. For connecting the regulator to the vacuum wire there is an annular tide 10 with a thread 11, By means of which the regulator is attached in a vertical position to the vacuum line. Freight 6 is located in the pneumatic chamber 8.

The operation of the controller is as follows.

When 1 is turned on, a vacuum pump (not shown) creates a pressure drop across valve 4. When the pressure drop force, acting up, exceeds the force created by the weight of the load 6, valve 4 begins to move up, thus admitting atmospheric air entering through the hole 2 into the vacuum tube. unit. Partition 7, rigidly connected with

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stem 5 also rises, creating a vacuum in chamber 8, which prevents upward movement of valve 4. Through the calibrated orifice 8, the pneumatic chamber 8 is slowly filled with atmospheric air. When the valve 4 stops in the pneumatic chamber 8, atmospheric pressure is established with some delay. The effect of the septum 7 on the valve 4 ceases.

When the vacuum in the milking unit vacuum decreases, the lift force acting on valve 4 decreases and valve 4 with partition 7 moves downwards under the action of load 6. In the pneumatic chamber 8, an overpressure is created which prevents downward movement. Through a calibrated orifice 9, there is a slow discharge of air from the pneumatic chamber 8. When the valve 4 stops in the pneumatic chamber 8, atmospheric pressure is established with some delay.

Claims (1)

Invention Formula Vacuum regulator mainly for milking machines, comprising a housing with a bottom and a side opening for air leaks, a valve mechanism with a rod, on the lower end of which a weight is fixed, a damping device, different from the fact that, in order to simplify the design, the bottom of the regulator body is made in the form of an elastic partition rigidly connected to the valve stem, and the damping device is in  in the form of a pneumatic chamber fixed in the lower part of the body with a calibrated opening for communication with the atmosphere, the load being placed in the pneumocamera. .