SU979632A1 - Pneumatic cylinder for charging device - Google Patents

Description

The invention relates to a mountain pro-. 1m industry, namely to devices for pneumatic charging of boreholes and boreholes with explosives.

A pneumatic cylinder for the charging device is known, consisting of a plug valve and a lever connecting the plug of the cork valve to the locking device.

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The closest technical solution to the present invention is a pneumatic cylinder for a charger, including a housing with a piston, a valve box fixed to the rod with a slide valve and a membrane 2j.

However, this pneumatic cylinder for the charger has a large number of mechanical connections, which significantly complicates its design, reduces its working capacity, and also worsens its maintenance during operation.

The purpose of the invention is to increase its reliability in operation.

This goal is achieved by the fact that in the pneumatic cylinder for the charger, which includes the Cornus of the Prop. In, the valve box with spool and diaphragm fixed to the IlTOKe. The transverse through channels are made in the housing and the piston, and the porsien is mounted in the cylinder with the possibility of its channel alignment with cylinder channel.

In addition, a longitudinal groove is made on the outer surface of the piston, and a latch is installed in the cylinder with the possibility of contacting the groove.

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FIG. Figure 1 shows a pneumatic cylinder for a charger, a longitudinal section in FIG. 2 is a view A of FIG. 1) in FIG. 3 shows a section BB in FIG. 2

The pneumatic cylinder for the loader is 5 of the cylinder body 1, inside which piston 2 is placed. Left half cylinder chamber 3 of the valve box is adjacent to the cylinder body 1, the other side is connected to the right half of the valve 20 by measure 4 of the valve box. Between the left semi-chamber 3 and the right semi-chamber 4 is placed a membrane 5 connected to the spool 6 and spring-loaded spring 7, the force of which

Claims (2)

25 is adjusted by a screw 8. In order to satisfy the safety rules, the pneumatic cylinder is equipped with a manual control rod 9. The compressed air is supplied to the pneumatic cylinder, to the button of the remote control noto (not shown in Fig.; And it is wired into the pneumatic cylinder itself through hoses 10-12). To prevent the piston from the inside of the cylinder from being prevented from spontaneous rotation, a latch 13 is attached to it. A seal 14 is fixed, and in it and the left half-chamber 3 the holes 15-17 are made. On the body of cylinder 1 there are tides 18 and 19 with channels 20 and 21, in the cavity of which in the body of cylinder 1 there is a through channel 22, the diameter of which is equal to the diameter of the squaw The air channel 23 is made in the cylinder body 1. The pneumatic cylinder works as follows: The downward air from the network enters the left, semi-chamber 3 through the sleeve 12, from where it passes through the hole 16 into the gold core and through the sleeve 10 into the left cavity of the housing of the cylinder 1 , under the action of which then day 2 is moved. to the extreme right position. Air from the right cavity through the hole 16 in the spool of the housing of the left semi-chamber 3 is released into the atmosphere. At the same time, the channel 23 in the cylinder body 1 and the channel 22 in the piston .2 overlap, stopping the explosives access from the charger to the charging hose. When the remote control button is pressed, the air from the right semi-chamber begins to go out into the atmosphere, the pressure in it drops, and The membrane 5 is arched, has a spring 7 and pulls out the spool b from the hole in the body of the left semi-chamber 3. The hole 17 opens and the air rushes through it into the right cavity of the cylinder body 1 and moves the piston 2 to the extreme left. Air from the left cavity goes through the sleeves 10 and 11 and through the remote control button into the atmosphere, ensuring the free movement of the piston 2. At the same time, the channels 22 and 23 in the case of the cylinder 1 and noix not 2 are combined, allowing the movement of the explosives from the charger to the inlet hose. When the remote control button is released, the air pressure in the left 3 and right 4 half chambers is balanced, under the action of the spring 7, the spool 6 returns to its original position, blocking the aperture 17 and aligning the aperture 16. Porien 2 returns to its original position, blocking the movement channel BB-. Thus, the proposed design of a 1111 cylinder due to the direct effect of the piston on the flow of explosives is much more reliable than the known one, and the elimination of the lever and the cork valve greatly simplifies it. The economic effect is calculated as follows. Replacing the pneumatic cylinder for the charger with the lever and the cork valve installed on the ELV cooler, the cost of which is 85 rubles, for the proposed pneumatic cylinder, the design of which is much simpler than the known devices, cost about 35 rubles only for Urupsky GOK at its need for chargers in the amount of 30 pcs. gives an economic effect in the amount of: (85-35.) X rubles. Claim 1. Pneumatic cylinder for a charger, including a housing with a piston, valve box fixed to the stem with a spool and diaphragm, characterized in that, in order to increase its reliability, the transverse through channels are made in the housing and the piston, and the piston is mounted in the cylinder with the possibility of combining its channel with the cylinder channel. 2. A pneumatic cylinder according to claim 1, which is characterized by the fact that a longitudinal groove is made on the outer surface of the piston, and a fixing bar is installed in the cylinder with the possibility of contacting the bottom of the groove. Sources of information taken into account in the examination 1.A.N.Bronnikov et al. Explosives, explosives and mechanisms for loading boreholes and boreholes used in underground mining of ore deposits. M., 1968, p. 60 2. Authors svititelstvo USSR 301442, cl. E 21 C 37/00, 1969 {prototype).