SU1150028A1 - Valve air distributor of jigging machine - Google Patents

Abstract

1SHAPANNY diffuser jigs including a housing, an inlet chamber and vshusknuyu kryshka1-t, in each krshpse an opening, with flexible rods, and bellows valves, pipes for air -podvoda, characterized in that, in order to reduce metal consumption of compressed air diffuser and reducing losses air by increasing the clamping force on the elastic valves, in the inlet chamber the diameter of the hole in the bottom cap is 1.151 times higher, 2 times the diameter of the hole in the top cap, and In the first chamber, the diameter of the hole in the upper wall is 1.15-1.2 times larger than the diameter of the hole in the bottom.

Description

The invention relates to the enrichment of minerals and can be used to create fluctuations in the working medium in a sprayless jigging machine.

Known valve pulsator, comprising a housing, rods with fixed inlet and outlet valves, pyvmoballon and return springs DJ

The disadvantage of this pulsator is the low speed of opening of the valves due to the effect of the spring, which limits the frequency of operation to 80 per minute.

A valve-type air distributor of pistonless jigging mash1N is known, comprising a housing, inlet and outlet chambers with lids, a hole is made in each crest, a rod with elastic valves and an air bellows, air inlets 2.

The disadvantages of such an air distributor are high metal consumption due to the use of cargo masks weighing up to 25 kg, as well as loose clamping of elastic valves used in the compressed air chambers to lock the holes.

The object of the invention is to reduce the metal consumption of the air distributor and reduce the loss of compressed air.

The goal is achieved by the fact that in the valve f of the distributor, which includes the housing, inlet and outlet chambers with lids, each lid has a hole in the stem, with elastic valves and single-sided bladders, air inlets, in the inlet chamber a hole in the lower lid is shaped. 15-1.2 times larger than the diameter of the hole in the upper section, and in the extension chamber, the diameter of the opening in the upper cover is 1.15-1.2 times larger than the diameter of the opening in the bottom edge.

The drawing shows a valve air distributor, longitudinal incision.

1Stapped air distributor consists of a body t, in which inlet 2 and outlet .3 chambers are formed by means of partitions, as well as an overflow channel 4. In the chambers there are openings 5, which are closed by valves 6, installed

on the rods 7. In the inlet chamber a hole with a large flow area is located in the lower part, and the outlet in the upper part.

The rod 7 through the plate 8 is attached to the air bellows 9, hermetically mounted on the upper plate of the housing 1. The internal cavities of the air bellows 9 through the opening in the housing 1 are connected to the air duct 10. The inlet and the volute chambers are bounded by cracks 11 and 12 with openings

Valve air distribution device operates as follows.

K, -, -

In the absence of overpressure of air in the air bellows 9 of the valve 6 with H1 currents 7 are in the lower position and under the action of gravity they lock the bore holes in the chambers 2 and 3 of the housing 1. Compressed air coming from the receiver into the chamber 2 due to different sections of the holes, closed valves, creates an additional force downward, which contributes to the tight locking bore holes. When applying compressed water. From the control system through the duct 10 to the air bladder of chamber 2, the rod 7 is moved upward with valves 6, i.e. open up

passage sections. At the same time, compressed air enters from the receiver through the lower and upper open holes and channel 4 into the air chamber of the otsadon machine — upward movement of the working medium occurs. At this moment in the outlet chamber 3 bore holes are closed by valves under the force of gravity of rod 7 with valves 6, as well as by the force created by the pressure difference in the bore holes, which eliminates the loss of compressed air.

Then, according to a predetermined program from the control system, the compressed air is discharged from; pneumatic cylinder of the inlet chamber 2. Under the action of the force of gravity of the rod with valves and compressed air from the receiver stem 7. with valves 6. moves the bottom and tightly closes the bore holes, which stops the supply of compressed air into the air chambers of the jigging machine.

Thereafter, compressed air is supplied to the percussion chamber 9 of the outflow chamber 3 and the current 7 with the valves 6 rises upwards, opening the passage openings 5 of the chamber 3. This allows air to escape from the air chamber of the machine. The descent of the working environment occurs.

Venting air from the bulb through the control system to the atmosphere allows the valve stem to close the openings. The cycle is then repeated at the frequency set by the control system.

1500284

Thus, the location of the orifice with a large flow area in the lower part of the inlet chamber and in the upper part of the outlet chamber promotes tight locking of the openings by the valves, which reduces the loss of compressed air and reduces the material consumption of the air distributor, and to ensure tight passage score . additional axial force diameter of one hole should be 1.15-1.2 times the other.

Claims (1)

VALVE DISCHARGE MACHINE DISTRIBUTOR, comprising a housing, inlet and outlet chambers with covers, a hole is made in each cover, rods with elastic valves and pneumatic cylinders, air supply nozzles, characterized in that, in order to reduce the metal consumption of the air distributor and reduce the loss of compressed air for due to an increase in the pressing force on the elastic valves, in the inlet chamber, the diameter of the hole in the bottom cover is 1.151.2 times larger than the diameter of the hole in the top cover, and in the exhaust chamber e diameter holes in the upper cover is configured to 1.15-1.2 times larger than the diameter of the hole in the bottom cover. 1 .