KR200223684Y1 - A tube of hammer drill - Google Patents

Abstract

The present invention relates to a waterproof spray tube of the open air hammer drill to prevent damage, the purpose of which is installed in the hammer drill for the blow of the mud blocked the blast furnace opening during the opening work waterproof spray tube for spraying coolant and nitrogen gas The purpose is to install the oilless bearing on the outside while forming a one-piece without connecting by welding, so that the impact of the hammer drill and cooling by the tube can be made more smoothly.

Therefore, in order to achieve the above object, the present invention is installed inside the socket 30 connected to the pipe 10 to supply the cooling water and the high pressure gas and fixed to the connection cap 20 of the open air dreamhammer, The screw rod 40 is connected to the opening pipe for the opening of the blast furnace outlet to the front in the hammer drill injection tube 50 of the open air to inject cooling water and high pressure gas, the inside of the socket 30 End tube insertion groove 32 is integrally formed through, and the connection tube 52 inserted into the screw rod 40 is screw-connected in front of the tube 1, the socket 30 and the tube ( 50) provides a waterproof spray tube of break-proof opening machine hammer drill to be assembled waterproof.

Description

Water-proof spray tube for break-proof opening machine hammer drill {A TUBE OF HAMMER DRILL}

The present invention relates to a perforator used in the opening work of the exit hole in the blast furnace, the melt produced by the oxidation and reduction of iron ore, coke and other raw materials, that is, the discharge of the sediment to the outside of the blast furnace. Is installed in the hammer drill for hitting the mud that blocked the blast furnace outlet during the opening work, and the oilless bearing is installed on the outside while forming integrally without connecting the waterproof spray tube that injects the coolant and nitrogen gas by welding. The present invention relates to a waterproof spray tube of an open hole hammer drill, in which breakage is prevented so that the blow and cooling of the tube is performed more smoothly.

In general, in the blast furnace, about 2-4 outlets for discharging molten hex by oxidation and reduction are formed in one blast furnace. As shown in FIG. 1, the outlet for discharging the sewage in the blast furnace is mud. As the mud gun is filled and opened, the smelt discharge operation of the blast furnace is sequentially performed. The apparatus for discharging the mud at the exit port to discharge the mud in the blast furnace is called an opener.

1 illustrates a general opening machine as described above.

1, the open air frame 120 is mounted on the blast furnace 100 as the tip fixing device 110 and the end hook 112, and an air hoist 132 is disposed above the frame 120. ) Is installed, the hoisting support 130 is fixed, the lower side of the support 130, the opening 120 is installed in the frame 120, the opening pipe 144 is fixed to the front end of the opening bit 142 for performing the opening operation. The hammer drill 140 is mounted to the lower side of the moving block 150 moving as the forward motor 152 along the frame 120.

Therefore, the opening bit 142 of the tip of the opening pipe 144 rotated by the hammer drill 140 moving forward opens the mud portion 104 of the blast furnace outlet 102.

On the other hand, Figure 2 shows the hammer drill 140, the hammer drill 140 of the opening is a screw tube which is fixed in front of the dispersion tube 200 for largely spraying the coolant and nitrogen gas And a rotation chuck 146 installed outside the tube 200 to rotate the screw rod 210 and respective transmission gears 148a and 148b for transmitting a driving force of the air motor gear. The injection tube 200 is shown in detail in FIG.

That is, as shown in Figure 3, the injection tube 200 is a connection socket 212 is connected to the cooling water and nitrogen gas supply pipe 211 is fixed to the tube connection cap 213, the cap 213 The rotating chuck 146 is located in front of the hammer piston 214 mounted on the), and the center portion 201 of the injection tube 200 is mounted inside the respective parts, and the line of the center portion 201, The socket 212 and the connection tube 202 are fixed to the rear end by welding, and the screw rod 210 is connected to the front of the connection tube 202.

Accordingly, the nitrogen gas, which is the coolant and the inert gas, supplied through the supply pipe 211 is injected through the screw rod 210 through the socket 212, the tube center portion 201, and the connection tube 202, and the overall open air. During the hammer operation, the cooling effect is to keep the openings well with the high temperature caused by the heat of the blast furnace.

That is, since the high temperature and strong binding properties of the roll into the blast furnace outlet 102, the end of the opening bit 104 is easily deteriorated in wear, so that the rapid cooling and drilled refractory material is called out from the bit hole by the injection tube. Cooling of the opening bit 104 through the high-pressure nitrogen gas and cooling water injected as 200, if the blast furnace opening 102 is about halfway, smooth opening work only by the rotational force of the opening bit 104 as early Since this is not done, the blow cylinder shown in FIG. 3 is operated to simultaneously perform the forward blow of the screw rod 210.

However, in the conventional open air injection tube 200 as described above, as shown in FIG. 4, the center portion 201 of the tube, the sockets 212 and the connection tube 202 on both sides thereof are fixed by welding. In this case, as shown in FIG. 5, when the socket 212, the tube center portion 201, and the connection tube 202 are welded, the center of the drill 200 itself when hitting the outlet of the drill itself is not accurately made. The problem is that the loss.

In addition, even when the screw rod 210 is rotated, the centering is not accurate due to the twisting of the tube 200. In particular, the breakage occurs at the weld between the socket 212, the tube center 201, and the connection tube 202. This occurs intensively, in which case the coolant leaks and mixes with the oil in the openings, preventing the openings from performing precisely.

Therefore, the cooling of the hammer drill 140 and the screw rod 210 is impossible without the smooth injection of coolant and nitrogen gas, thereby dramatically shortening the service life of the hammer drill, and the rotation of the screw rod 210 is impossible. The opening work of the blast furnace exit by the opening machine is also delayed.

This makes it difficult to smoothly carry out the blast furnace work, and at the same time, there are various problems such as increase in cost as well as a decrease in productivity due to frequent replacement and maintenance of the blast furnace.

The present invention has been made in order to improve the various problems as described above, the purpose of which is, the cooling water leakage during the breakage of the injection tube installed in the opening of the blast furnace drill to perform the opening work of the blast furnace opening and additionally In order to prevent the rule completely, to provide a waterproof spray tube of the open air hammer drill to prevent breakage to prevent shortening the life of the device due to poor cooling of the open air drill.

In addition, another object of the present invention is to prevent damage due to high temperature and tube breakage due to poor cooling of the opening machine hammer drill portion, so that the cost of maintenance and maintenance is not necessary because the frequent replacement of the drill portion and the tube of the opening machine is unnecessary. On the other hand, it is to provide a waterproof spray tube of the breaker-opening hammer drill to prevent the breakage that improves the operability of the hole opening itself due to the injection tube with improved heat resistance and airtightness.

1 is a schematic diagram showing the overall configuration of a general opening machine

2 is a schematic structural diagram showing a hammer drill driving unit of a conventional opening machine

Figure 3 is an overall configuration showing a hammer drill waterproof spray tube of a conventional opening machine

Figure 4 is a main view showing a welded integral waterproof spray tube of a conventional hammer drill

(A)-(b) of FIG. 5 is a detailed view of the 'A' and 'B' of FIG.

6 is an overall configuration diagram showing a waterproof spray tube of the hammer hole drill prevented breakage according to the present invention

Figure 7 is an exploded perspective view showing a waterproof spray tube of the hammer hole drill to prevent breakage of the present invention

Figure 8 is an assembly view showing a waterproof spray tube of the hammer hole drill to prevent breakage of the present invention

Explanation of symbols on the main parts of the drawings

1 .... waterproof spray tube 10 .... supply pipe

20 .. Connection cap 30 .... Socket

32 .... Tube insert groove 40 .... Screw rod

50 .... Injection tube 60 .... Oilless bearing

62 ... rubber packing 64 ... gasket

70 .... retaining ring

As a technical configuration for achieving the above object, the present invention is connected to the cooling water and the high-pressure gas supply pipe is installed inside the socket fixed to the connection cap of the open air Dreamhammer, the opening of the blast furnace outlet forward In the hammer drill injection tube of the open air to the screw rod is connected to the opening pipe for injecting coolant and high pressure gas,

The inner end of the socket is formed through two tube insertion grooves integrally, the connection tube is inserted into the screw rod in the front of the tube is screw-connected, the socket and the tube is prevented from being broken to be assembled to waterproof To provide a waterproof spray tube of air hammer drill.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

6 is an overall configuration diagram showing a waterproof spray tube of the break-resistant opening machine hammer drill according to the present invention, Figure 7 is an exploded perspective view showing a waterproof spray tube of the break-proof opening machine hammer drill according to the present invention. 8 is an assembly view showing a waterproof spray tube of the hammer hole drill to prevent breakage of the present invention.

Figure 6 shows the waterproof spray tube (1) of the hammer hole drill to prevent breakage of the present invention. First, the injection tube 50 is installed inside the socket 30 connected to the pipe 10 to supply the coolant and the high pressure gas and fixed to the connection cap 20 of the open air dream hammer, and the opening of the blast furnace outlet in the forward direction. Screw rod 40 is connected to the opening pipe for the injection is to spray the coolant and high pressure gas.

In addition, a two-stage tube insertion groove 32 is integrally formed in the socket 30, and a connection tube 52 inserted into the screw rod 40 is screwed in front of the tube 1. The socket 30 and the tube 50 are assembled to be waterproof.

Meanwhile, oilless bearings 60a and 60b for rotation of the tube 50 are mounted on the outside of the tube 50 seated and fixed to the tube insertion groove 32 of the socket 30, and the bearing 60. One side of the) is fixed to the rubber packing 62 and the gasket 64 for waterproofing the tube 50, respectively.

In addition, the bearings 60 are fixed to the fixing grooves (50a) and the fixing grooves (32a) of the fixing grooves (32a) of the insertion grooves 32 of the tube 50 is fixed to prevent the separation. It consists of the configuration.

Referring to the operation and effects of the present invention made in the above configuration in more detail as follows.

6 to 8, a conventional multi-stage welding connection of the injection tube 50 to spray the cooling water and nitrogen gas during the opening operation of the open air to prevent damage to the open air bit portion due to high heat It is possible to effectively block the leakage of cooling water from the tube 50 by waterproofing the contact portion of the socket 30 and the tube 50 while minimizing the loss of the welding part generated during the rotation and the impact of the opening pipe. The waterproof spray tube (1) of the break-resistant opening machine hammer drill is designed to be as follows.

First, as shown in Figure 8 briefly look at the injection tube 50, the connection pipe 10 for supplying the cooling water and the high-pressure gas is connected to the rear of the socket 30, the socket 30 is an open air It is connected to the connection cap 20 is fixed to the drill hammer.

Then, the injection tube 50 is mounted on the inside of the socket 30, while the front of the injection tube 50 is rotated by the rotary chuck 42 mounted to the outside and connected to the rear cap 20 Screw rod 40 is rotated and hit as a piston 44 installed in the connection is performed to actually open the opening of the blast furnace outlet.

On the other hand, as shown in Figure 6, the two ends of the tube insertion groove 32 is integrally formed through the inside of the socket 30, the rear end of the injection tube 50 in the insertion groove 32 is constant Cooling water and nitrogen gas, which are partially inserted and supplied through the passage 30a formed in the socket 30, flow through the injection tube 50.

In addition, the front of the injection tube 50 is connected to the connection tube 52 is fixed by the screw assembly method, such that connecting the connection tube 52 so as to be decomposable when the assembly of the screw rod 40 tube 50 This is to facilitate the connection of the 52.

On the other hand, two oilless bearings (60a, 60b) is mounted on the outer periphery of the bar (50) seated in the tube insertion groove (32) formed inside the socket (30) to rotate the tube (50). Do not add oil.

And, the rubber packing 62 and the gasket 64 is fixed to one side of the two bearings (60a, 60b), if the leakage occurs in the connection between the tube 50 and the socket 30, the rubber packing ( 62) and the gasket (64) to block the flow is to have a waterproof effect.

At the same time, the bearings 60 are separated by fixing rings 70a and 70b which are fitted into and fixed to the fixing grooves 50a of the tube 50 and the fixing jaw 32a of the socket insertion groove 32. Is prevented.

Accordingly, in the present invention, a tube connected in multiple stages as a conventional welding is simplified into two stages of the tube 50 and the connecting tube 52, and is integrated without welding, and at the same time, the socket 30 and the tube easily leak. (50) By waterproofing the connecting portion, it is possible to prevent damage to the opening of the opening due to the leakage of cooling water, while improving the operability of the opening by a smooth cooling action.

As described above, according to the waterproof spray tube of the breaker-proof hammer drill drill of the present invention, by completely preventing the breakage of the injection tube installed inside the hole drill hammer for opening the furnace exit opening, This has the advantage of preventing shortening of the life of the device due to poor cooling of the drill part.

In addition, by preventing the breakage of the tube due to the high temperature due to the poor cooling of the opening of the drill hole drill and tube breakage, it is not necessary to frequently replace the drill portion and the tube of the opening machine to reduce the cost for repair and maintenance, while maintaining heat resistance and airtightness This improved injection tube has an excellent effect of improving the operation of the opening machine itself.

While the subject innovation has been shown and described with respect to specific embodiments, it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit or scope of the subject innovation as provided by the following claims. I would like to clarify that knowledge is easy to know.

Claims (2)

The pipe 10 is connected to supply the cooling water and the high pressure gas, and is installed inside the socket 30 fixed to the connection cap 20 of the open air dreamhammer, and the opening pipe for opening the blast furnace outlet is connected to the front. In the hammer drill injection tube 50 of the open air to the screw rod 40 is connected to inject coolant and high pressure gas, Inside the socket 30, two-stage tube insertion grooves 32 are integrally formed, and in front of the tube 50, a connection tube 52 inserted into the screw rod 40 is screwed. , The socket 30 and the tube 50 is waterproof spray tube of the hammer hole drill to prevent breakage, characterized in that assembled to waterproof According to claim 1, Oilless bearings (60a) (60b) for the rotation of the tube 50 is mounted on the outer periphery of the tube 50 seated in the tube insertion groove 32 of the socket 30, One side of the bearing 60 is fixed to the rubber packing 62 and the gasket 64 for the waterproofing of the tube 50, the bearings 60 are inserted into the fixing groove (50a) and insertion of the tube (50) Waterproof spray tube of break-proof opening machine hammer drill, characterized in that it is fixed as a fixing ring (70a, 70b) is fitted into the fixing jaw (322a) of the groove 32