KR200360964Y1 - An agitation and hammer apparatus for boring - Google Patents

Abstract

The present invention relates to a boring device that excavates and stirs the ground, and more particularly, it is fixed to the lower outer surface of the stirring hamcasing is connected to the rod bottom of the boring device fixed and rotated by the rotation of the rod stirring and A plurality of tip stirring bits to be excavated, an air chamber which is provided inside the stirring hammer casing, the upper part of which is in communication with the air transfer pipe inside the rod, and the lower part of which is in communication with the connecting tube of the hammer bit part, and a portion between the tip stirring bits Each of the plurality of hammer bits are provided inside the stirring hammer casing of the plurality and are inclined at a predetermined angle from the vertical downward to the outer direction and driven by compressed air supplied from the air chamber to strike and excavate the rock layers in the ground. And a tip end penetrating perpendicularly to the central portion of the stirring hammer casing. Consists of a chemical solution in the chemical solution discharging the chemical solution into a ball perforated at the bottom center of the bit so that the exhaust outlet tube is here relates to a boring stirred hammer device for being to digging and stirred with crushed by striking the ground in the rock layer.

Description

An agitation and hammer apparatus for boring}

The present invention relates to a boring device that excavates and stirs the ground, and more particularly, it is fixed to the lower outer surface of the stirring hamcasing is connected to the rod bottom of the boring device fixed and rotated by the rotation of the rod stirring and A plurality of tip stirring bits to be excavated, an air chamber which is provided inside the stirring hammer casing, the upper part of which is in communication with the air transfer pipe inside the rod, and the lower part of which is in communication with the connecting tube of the hammer bit part, and a portion between the tip stirring bits Each of the plurality of hammer bits are provided inside the stirring hammer casing of the plurality and are inclined at a predetermined angle from the vertical downward to the outer direction and driven by compressed air supplied from the air chamber to strike and excavate the rock layers in the ground. And a tip end penetrating perpendicularly to the central portion of the stirring hammer casing. Consists of a chemical solution in the chemical solution discharging the chemical solution into a ball perforated at the bottom center of the bit so that the exhaust outlet tube is here relates to a boring stirred hammer device for being to digging and stirred with crushed by striking the ground in the rock layer.

In general, shielding blocks the movement of contaminated groundwater, such as unsanitary landfills or abandoned mines, when there is a significant risk to the safety of buildings or structures due to the installation of vertical water barriers to prevent the inflow of water, reinforcement of soft ground, or ground subsidence. When constructing structures or facilities in the ground, such as installing cut-off walls and heat-treatment ground improvement construction, first use basic equipment such as boring grouting, drilling and soft ground improvement equipment. As a result, after boring (boring) the hole to a predetermined depth in the ground, secondary construction is performed.

In the boring operation, boring is provided in the ground by using a boring device provided in a boring grouting device, an excavation device, a soft ground sketching device, and when the ground is a hard thick hard rock or granite layer, conventionally, the boring device One air hammer bit is installed at the lower end of the rod, and the air hammer bit is vertically moved up and down by the high pressure compressed air supplied from a normal air supply device, and rotated by the rotation of the rod while hitting the rock layer. The air hammer bit is designed to perforate the rock layer, but the air hammer bit is one air hammer bit having a size similar to the diameter of the hole to be drilled, and the rock layer is fixed to the ground by striking the rock layer in the ground while vertically moving up and down. No more crushed or if the rock layer is corrosive Rather than crushing the semi-layers, rather, the rock layer crushed by the vertical vertical movement of the air hammer bit is hardened in the ground, which makes it difficult to drill the underground, and also applies excessive force to the solidly ground. Increasing wear of the air hammer bit at the end of the air shortens the service life of the air hammer bit and reduces work efficiency.

The present invention is to solve the problems as described above by a plurality of hammer bit portion inclined in the vertical direction from the bottom downward strikes the rock layer in the diagonal direction finely crushed and at the same time agitated the ground by the end stirring bits And it is aimed to make easy underground drilling by excavation, and do not apply excessive force to the hammer bit portion to reduce the wear of the hammer bit end portion and improve the work efficiency.

Boring device composed of a conventional auger driver, a gearbox, a plurality of rods, a stirring blade, a swivel joint, a rod band, and an air supply device to achieve this purpose, the lower outer portion of the stirring mixer casing is connected to the lower end of the rod It is fixed to the side and is rotated by the rotation of the rod a plurality of tip stirring bits for stirring and excavating the ground, and is provided inside the stirring hammer casing, the upper portion is in communication with the air transfer pipe inside the rod, the lower portion of the hammer bit portion connection It is in communication with the pipe to temporarily store the compressed air from the air transfer pipe to supply to the plurality of hammer bits, and the inside of the stirring hammam casing between the tip stirring bits, respectively, and is vertically downward Is inclined at a predetermined angle to the air chamber portion A plurality of hammer bits are driven by the supplied compressed air to strike and excavate the rock layer in the ground, and the chemical liquid discharge hole is installed vertically through the central portion of the stirring hammer casing and drilled in the lower center of the tip stirring bit It is a feature of the present invention that the chemical liquid discharge tube is configured to discharge the chemical liquid such as a solidifying agent.

1 is a schematic diagram of a state of excavating and stirring the ground using a boring device equipped with a stirring hammering device for boring according to the present invention

Figure 2 is a partial cross-sectional schematic view of the boring device equipped with a stirring hammering device for one embodiment according to the present invention

3 is a cross-sectional view taken along the line AA ′ of FIG. 2.

Figure 4 is a bottom view of the stirring abrasion device for one embodiment according to the present invention

<Description of Symbols for Major Parts of Drawings>

1. Stirring device 2. Boring device

3. Auger driver 4. Gearbox

5. Rod 6. Agitation wing

7. Swivel Joint 8. Road Band

9. Air supply device 10. Stirring casing

11. Tip stirring bits 12a, 12b. Air transfer pipe

13. Air chamber 14. Hammer bit part

15. Chemical discharge hole 16. Chemical discharge pipe

17a, 17b. Metal Part 18.Air Supply Hose

19. Connector 20. Hammer bit cylinder

21.Hamma bit piston 22. Chemical supply pipe

23. Chemical supply swivel 24. Hammer bit end

Hereinafter, the preferred configuration of the present invention in detail by the accompanying drawings as follows.

Boring stirring hammer device (1) according to the present invention is connected to the boring device (2), such as boring grouting device, excavation device, rough ground improvement device, as shown in Figures 1 to 4, and used a common auger driver (3) a rod of a boring device (2) consisting of a gearbox (4), a plurality of rods (5), stirring blades (6), a swivel joint (7), a rod band (8) and an air supply device (9) (5) connected to the lower end, respectively, by the auger driver (3) and the gear box (4) is reversed by the rotation of the rod (5) driven by the forward and reverse rotation, respectively, hitting the rock bed of the ground to crush and excavate And stirring.

Looking at the specific configuration of the stirring hammer device 1 for boring is fixedly attached to the lower outer surface of the stirring hammer casing 10 is connected to the lower end of the rod 5 is rotated by the rotation of the rod 5 underground And a plurality of tip stirring bits 11 for stirring and digging, and an inside of the stirring hammer casing 10, the upper part of which is in communication with the air transfer pipes 12a and 12b inside the rod 5, and the lower part of the hammer bits. An air chamber 13 which communicates with the connecting pipe 19 of the part 14 and temporarily stores compressed air from the air transfer pipes 12a and 12b and supplies the compressed air to the plurality of hammer bit parts 14; It is provided inside each of the stirring agitator casing 10 between the end stirring bits 11, and is installed to be inclined at a predetermined angle from the vertical downward to the outward direction and driven by the compressed air supplied from the air chamber 13. Hitting the rock layers of the ground And a plurality of hammer bit portions 14 which are to be excavated, and are vertically penetrated to the central portion of the stirring hammer casing 10 to the chemical liquid discharge hole 15 drilled in the center of the lower end of the tip stirring bit 11. It consists of a chemical liquid discharge tube 16 which is intended to discharge chemical liquids such as a solidifying agent.

The plurality of front end stirring bits 11 are made of a material such as hard carbon steel, and are interposed between the lower outer surface and the lower outer surface of the stirring armament casing 10 which is integrally connected to the lower end of the rod 5 of the boring device 2. It is fixed and mounted in the vertical direction to stir and excavate the ground. The lower part is narrow and the upper part is in stepped plate shape that is gradually widened. The lower end of the end stirring bit 11 is made of diamond or wear-resistant special alloy. A plurality of metal pieces 17a are fixedly attached to increase agitation and digging efficiency. As a preferred embodiment of the present invention, as shown in FIGS. 1, 2, and 4, the lower outer portion of the stirring hammer casing 10 is provided. The three end stirring bits 11 fixedly attached to each other at 120 ° intervals form the most stable structure.

The air chamber 13 is provided in the upper portion of the stirring hammer casing 10, the upper portion is in communication with the air transfer pipe 12a (12b) vertically installed in the inner side of the rod (5) and the lower portion of the hammer bit In communication with the connecting pipe 19 of the part 14, the compressed air supplied from the air transfer pipes 12a and 12b is temporarily stored and supplied to the plurality of hammer bits 14, respectively.

The air transfer pipes 12a and 12b are vertically penetrated along the inside of the rod 5 and are connected to the swivel joint 7 provided at the upper portion of the rod 5 through an air supply hose 18. The compressed air supplied from the normal air supply device 9 is fed and supplied.

As shown in FIGS. 1, 2, and 4, the plurality of hammer bits 14 are provided inside the stirring hammer casing 10 between the tip stirring bits 11, respectively. It is inclined at an angle of and is excavated while effectively hitting and crushing rock layers in the ground, and is composed of a connecting pipe 19, a hammer bit cylinder 20, and a hammer bit piston 21.

The connecting pipe 19 is installed between the air chamber 13 and the hammer bit cylinder 20 so that each of the compressed air transferred from the air transfer pipes 12a and 12b and temporarily stored in the air chamber 13 The hammer bit cylinder 20 of the bit portion 14 is simultaneously supplied.

The hammer bit cylinder 20 is a pneumatic device that is commonly used as a part in which pneumatic pressure is generated by the compressed air supplied from the air supply device 9, is provided inside the stirring hammer casing 10, but vertically downward It is installed to be inclined at a predetermined angle in the outward direction so that the hammer bit piston 21 provided on the inside is reciprocated vertically in a state inclined in the outward direction from the vertical downward, and the upper part is in communication with the connecting pipe 19. .

The hammer bit cylinder 20 is most preferably installed to be inclined approximately 1 to 5 degrees from the vertical direction to the outer direction.

In addition, the hammer bit cylinder 20 is installed between the three end stirring bits 11 fixedly attached to the lower outer surface of the stirring hamma casing 10 at 120 ° intervals as a preferred embodiment according to the present invention Will form the most stable structure.

The hammer bit piston 21 is inserted into each of the hammer bit cylinders 20 and moves upward and downward in the inclined direction from the vertical downward to the outside by pneumatic pressure in the hammer bit cylinder 20, and moves the rock layer in an oblique direction. It is to be excavated while being crushed evenly without striking the rock layer, and the bottom part is formed with a hammer bit tip part 24 fixedly attached with a plurality of metal pieces 17b made of diamond or wear-resistant special alloy. It is intended to increase.

The chemical liquid discharge pipe 16 is vertically penetrated to the central portion of the stirring hammer casing 10 and the upper portion is connected to the chemical liquid supply pipe 22 vertically penetrated to the center portion of the rod (5) and the tip stirring bit (11) The chemical liquid such as a solidifying agent is discharged through the chemical liquid discharge hole 15 drilled in the center of the lower part of the bottom, and the chemical liquid supply pipe 22 is connected to the chemical liquid supply swivel 23 formed on the gear box 4. Therefore, the chemical liquid such as a solidifying agent is injected through the chemical liquid supply swivel 23.

Referring to the operation according to the present invention is as follows.

When boring the rock layer in the ground using the boring stirring hammer device 1 of the present invention, the compressed air generated from the conventional air supply device 9 passes through the air supply hose 18 connected to the swivel joint 7. Bore stirring agitator device which is supplied to air transfer pipes 12a and 12b vertically installed inside the plurality of rods 5 and connected to the lower part of the rod 5 through the air transfer pipes 12a and 12b. After the compressed air is temporarily stored into the air chamber 13 of 1), the compressed air is continuously supplied to the hammer bit cylinders 20 through the connecting pipes 19 of the plurality of hammer bit parts 14, and is vertically outward. The hammer bit piston 21 inside the hammer bit cylinder 20, which is installed at an inclined angle at a predetermined angle, is rotated by the rotation of the rod 5, and is vertically reciprocated while being inclined from the vertical downward to the outside. Hit the rock bed diagonally The rock layer is excavated while being crushed evenly without being crushed, and the stirring stir bit 11, which is fixed to the lower outer surface of the stirring hammer casing 10, is rotated by the rotation of the rod 5, and the ground is stirred. A chemical liquid is excavated, and a chemical liquid such as a hardener is injected through the chemical liquid supply swivel 23, transferred to the chemical liquid supply pipe 22 inside the rod 5, and is vertically penetrated to the central portion of the stirring casing 10. It is supplied to the discharge pipe (16) and discharged to the outside through a plurality of stirring blades (6) provided in the chemical liquid discharge hole (15) and the rod (5) perforated in the bottom center of the tip stirring bit (11) At the same time, the discharge of the liquid is made.

According to the present invention as described above, while the hammer bit piston is rotated by the rotation of the rod by a plurality of hammer bit parts installed in a state inclined in the vertical direction from the vertical down, the rock layer of the underground by hitting the rock layer in the diagonal direction in the diagonal direction It is easily crushed without being compacted and at the same time, drilling and agitation by the rotation of the tip agitator bit make the underground drilling easier, and the excessive force is not applied to the hammer bit to reduce the abrasion of the hammer bit and reduce the work efficiency. There is an effect to be improved.

Claims (3)

In the boring device consisting of a conventional auger driver, a gear box, a plurality of rods, a stirring blade, a swivel joint, a rod band and an air supply device, the lower outer surface of the stirring hamma casing 10 is connected to the lower end of the rod (5) And a plurality of tip stirring bits 11 fixed and attached to the inside of the agitator casing 10 and agitated and excavated while rotating by the rotation of the rod 5. It is in communication with the air transport pipe (12a) (12b) and the lower portion is in communication with the connecting pipe (19) of the hammer bit portion 14 to temporarily store the compressed air from the air transport pipe (12a) (12b) a plurality of hammer Located between the air chamber 13 to be supplied to the bit portion 14 and the tip stirring bit 11 is provided inside the stirring agitator casing 10 and installed inclined at a predetermined angle from the vertical downward to the outside direction. Became And a plurality of hammer bit portions 14 driven by the compressed air supplied from the air chamber 13 to strike and excavate the rock layers in the ground, and penetrate perpendicularly to the central portion of the stirring hammer casing 10. Boring agitation apparatus for boring, characterized in that the chemical liquid discharge tube 16 is installed to be discharged to the chemical liquid discharge hole (15) perforated in the lower center of the tip stirring bit (11). According to claim 1, wherein the plurality of tip stirring bits 11 are fixedly attached to the lower outer surface of the stirring hammer casing 10 at intervals of 120 ° in a stepped plate shape of which the lower portion is narrower and the upper portion is gradually widened. The lower end surface of the tip stirring bit (11) is a boring stirring device, characterized in that a plurality of metal pieces (17a) made of diamond or wear-resistant special alloy is fixedly attached. According to claim 1, wherein the plurality of hammer bit portion 14 is connected to the connecting tube 19 is provided between the air chamber 13 and the hammer bit cylinder 20, the inner side of the stirring hammer casing (10) The hammer bit cylinder 20 is installed to be inclined at an angle of 1 to 5 ° in the vertical direction from the bottom to the bottom, and the hammer bit piston 20 is vertically reciprocated in a state inclined from the vertical downward to the outside, The hammer bit piston 21 is inserted into the hammer bit cylinder 20 and has a hammer bit end portion 24 having a plurality of metal bit pieces 17b made of diamond or wear-resistant special alloy fixedly attached to the lower end thereof. Stirring device for boring characterized in that.