KR101596926B1 - Multi-core barrel hammer system - Google Patents

Abstract

The present invention relates to a multi-core barrel hammering system installed in a pile drilling machine for use in drilling large diameter (over 1000 mm) rocks in a rock layer. In drilling a large diameter drilling machine, The drill bit is formed in the bit body so as to be able to be quickly discharged so as to maximize the work efficiency and the hammer bit can be installed concentrically in the rotating body, And to provide a multi-core barrel hammering system in which excavation can be performed at once without forming a core.
That is, the present invention relates to a hammer bit assembled into an assembly hole formed in a cylindrical rotary body used in combination with a drum stabilizer of a file drilling machine, wherein the hammer bit is provided with a circular or rectangular shaped bit body, A multi-core barrel hammering system configured to include a roller bit disposed in the rotating body so as not to directly interfere with the crushing surface at the top dead center, and a suction discharge pipe formed in the rotating body and discharging the crushed material crushed by the hammer bit upward ;
The suction and discharge tube is formed to be close to the bit body in a direction opposite to the rotating direction of the rotating body; The crushing channel is formed at the bottom of the bit body so as to be opened from the center toward the suction and discharge pipe so that the crushed material crushed by the bit body can be quickly discharged to the suction and discharge pipe,
The hammer bit is arranged in the rotating body so as to have a plurality of concentric circles; The suction and discharge tube is formed to be close to the bit body in a direction opposite to the rotating direction of the rotating body; The crushing channel is formed at the bottom of the bit body so as to be opened from the center toward the suction and discharge pipe so that the crushed material crushed by the bit body can be quickly discharged to the suction and discharge pipe to improve the crushing efficiency;
Further, a center hammer bit having a bit body formed in a circular shape is connected to the center of the rotating body in which the hammer bits are concentrically arranged, or an auger driven separately from the rotating body is further installed, A centering hammer bit is installed so that one side of the body comes into contact with the center and a suction and discharge pipe is formed opposite to the rotation direction of the centering hammer bit so that the crusher discharged through the crusher passage formed in the bit body and the crusher broken by the auger So that it can be discharged.

Description

[0001] Multi-core barrel hammer system [0002]

The present invention relates to a multi-core barrel hammering system installed in a pile drilling machine for use in drilling a large diameter (over 1000 mm) in a rock layer, and more particularly, to a multi- Core barrel hammering system capable of maximizing the efficiency of operation by constituting a drill hole of a toroidal type so that the crushed material can be quickly discharged by the bit formed on the bit body .

Also, the present invention provides a multi-core barrel hammering system in which a hammer bit is installed concentrically on a rotating body so that excavation of a large diameter can be performed at once without forming a core.

Generally, for construction and bridge foundation work, a work (R.C.D. method) is carried out by installing a file made of steel pipes or the like on a soft ground or an underground layer and performing reinforcement work.

In the case of the above-mentioned R.C.D. method, the excavation work of a large diameter (1000 mm or more) is carried out.

Typically, a drum stabilizer is coupled to the upper end of a drill pipe of a file drilling machine, and a bit body, which is a lower part of the drill pipe coupled with a few bits in the circumferential direction, There is a method of drilling the excavation hole at once in the rock layer.

It is also possible to combine a drum stabilizer on the top of the drill pipe of the file drilling machine, to couple the pipe-shaped bit body to the underside of the drill pipe, to install several bits on the bottom of the bit body, The bit body is rotated together, the bit is scratched on the rock layer to form a donut-shaped groove, and when the core barrel is formed with a predetermined depth, the bit is removed to puncture the drilling hole.

In the case of the core barrel type, as compared with the method of excavating the entire rock layer, there is an advantage in that a large excavation hole can be excavated while minimizing the excavation area. However, in the excavation process, The bit replacement cost is high and the workability is very low.

As a method for solving such a problem, a drilling hummer for core barrel working of a file drilling machine, which is the right holder of the present invention, is registered (KR 200444654 Y1 2009.05.20.).

The above-mentioned line registration structure is composed of a hammer bit which is coupled to a drum stabilizer of a file drilling machine and excavates a ground to a rotating body provided with a flange at the upper end thereof and a core barrel Wherein the rotary body is formed in a cylindrical shape having a bottom open so as to have a hollow configuration such as a donut, and the hammer bit is coupled to two or more assembly holes opened downward in the rotary body, And the core barrel is formed by drilling holes of the shape.

The above-mentioned prior art provides much improved excavation capability as compared to the R.C.D. method for the conventional large-diameter excavation work of 1000 mm or more, thereby providing a significant reduction in work air. However, the hammer bit and the bit body which are responsible for the perforation have a cylindrical shape, and at least two hammer bits provided in the circumferential direction on the side of the edge of the rotating body are provided, and on the bottom of the toroid, A plurality of roller bits are provided so as not to interfere with the hammer bit, and a suction and discharge pipe is formed to discharge the pulverized material to the ground. In this configuration, the number of bits in the middle portion is larger than the number of bits located inside and outside of the bit body with respect to the excavation center at the time of excavation, so that the wear of the inner and outer bits is drastically generated during drilling, There is a problem that the work is required and the work efficiency is lowered due to the reduction of the crushing force. In the industry, there is a demand for a new construction hammer bit which can solve this problem.

As a means for solving the above-mentioned problem, the present inventor has filed a filing application for a hammer bit of a drill for a core barrel work in Korean Utility Model Application No. 2013-0000940. The bit body of the excavation hammer is composed of a trapezoid having an arc shape on the lower side and an upper side so as to have a wider sectional area. The bit formed for crushing is uniformly worn on the bottom of the hammer bit, It is possible to extend the service life remarkably.

However, in the above-described prior arts, as shown in FIG. 1, the crushed material crushed by the hammer bit can not be rapidly discharged to the suction and discharge pipe, but remains in the crushing area and is discharged when the suction and discharge pipe is moved upward . Such a delay in the discharge of the crushed material is a shape that crushes the crushed material that has already been crushed and re-crushes the crushed material. As a result, the crushing ability is lowered and the quick excavation work can not be expected. There has been a need in the industry for a hammering system of a new structure capable of solving various problems caused by excavation work by inducing rapid discharge of crushed materials.

KR 200444654 Y1 May 5, 2009.

Therefore, the present inventors have researched and developed the present invention in order to solve the congestion phenomenon of a crushed material, which has been caused by the conventional problem. In the present invention, when the drill bit is formed by improving the configuration of the hammer bit, It is possible to maximize the working efficiency by allowing the discharge of the crushed waste material to be performed quickly without stagnation from the lower side of the excavation crusher and by installing the hammer bit concentrically in the rotating body, the excavation of the large diameter can be performed at once without forming the core The present invention has been accomplished on the basis of the technical object of the present invention by providing a multi-core barrel hammering system.

A multi-core barrel hammering system provided by the present invention as a task solution comprises:

A hammer bit assembled into an assembly hole formed in a cylindrical rotary body used in combination with a drum stabilizer of a first file drilling machine and having a hammer bit having a circular or rectangular configuration of the bit body, A multi-core barrel hammering system configured to include a roller bit disposed in the rotating body so as not to directly interfere with the surface, and a suction discharge pipe formed in the rotating body for discharging the crushed material crushed by the hammer bit upward; The suction and discharge tube is formed to be close to the bit body in a direction opposite to the rotating direction of the rotating body; The crushing channel is formed at the bottom of the bit body so as to be opened from the center toward the suction / discharge pipe, so that the crushed material can be rapidly discharged to the suction / discharge pipe by the bit body, thereby improving the crushing efficiency.

A hammer bit assembled into an assembly hole formed in a cylindrical rotary body used in combination with a drum stabilizer of a second file drilling machine and having a hammer bit having a circular or rectangular configuration of the bit body, A multi-core barrel hammering system configured to include a roller bit disposed in the rotating body so as not to directly interfere with the surface, and a suction discharge pipe formed in the rotating body for discharging the crushed material crushed by the hammer bit upward; The hammer bit is arranged in the rotating body so as to have a plurality of concentric circles; The suction and discharge tube is formed to be close to the bit body in a direction opposite to the rotating direction of the rotating body; The crushing channel is formed at the bottom of the bit body so as to be opened from the center toward the suction / discharge pipe, so that the crushed material can be rapidly discharged to the suction / discharge pipe by the bit body, thereby improving the crushing efficiency.

Thirdly, the roller bits are installed so as to extend over the boundary between the outer and inner concentric circles.

Fourth, a center-use hammer bit is attached to the center of the rotating body, which is arranged concentrically, with a bit body having a circular cross-section.

A fifth auger which is driven separately from the rotating body is installed at the center of the rotating body in which the hammer bits are concentrically arranged and a center hammer bit is installed on the auger axis so that one side of the bit body comes into contact with the center, A suction and discharge pipe is formed on the opposite side of the rotation direction of the drill bit so that the pulverized material discharged through the pulverized material flow path formed in the bit body and the pulverized material broken by the auger can be discharged.

Sixth, the rupture channel formed in the bit body is gradually widened from the center of the bit body to the outside, so that the rupture can be easily discharged.

And the hammer bit coupled to the outside of the seventh revolving body was formed so as to be exposed to the outside of the rotating body by the casing thickness.

The slag reservoir is formed with an assembly hole at the center of the ceiling plate, and a drum stabilizer and a rotating body are disposed at the center of the top plate. And a wire loop is provided on the outer upper side to fix a lower end portion of the lifting wire and a suction and discharge pipe provided on the rotating body is extended to the interior of the slag storage case so that the crushed material can be discharged into the slag storage case .

The induction partition wall is formed integrally with the lower part of the rotating body, the induction partition wall having the bit body side opened to the periphery of the ninth intake / discharge pipe, It is formed so as not to be in contact with the non-crushed portion when the rotating body rotates.

When the multi-core barrel hammering system provided in the present invention is used, it is possible to drastically improve the excavation capability as compared with the R.C.D. method for the conventional large-diameter excavation work of 1000 mm or more, thereby greatly shortening the working air.

That is, when the present invention is used, the crushed material crushed by the bit body is rapidly discharged to the suction / discharge pipe through the crushed material flow path formed in the bit body, It can provide much improved crushing ability than the hammering system.

In addition, the present invention provides an auger which is installed concentrically on the rotating body and driven separately from the center-use hammer bit or the rotating body at the center, so that a large-diameter excavation work can be performed Effect can be provided.

The multi-core barrel hammering system provided in the present invention can be applied to general excavation equipment such as an auger machine, a rotary drill machine equipped with a Kelly bar, and the like, as well as the RCD method.

1 is a front view showing a first preferred embodiment of a multi-core barrel hammering system provided by the present invention. Fig.
FIG. 2 is a front view showing a first preferred embodiment of the multi-core barrel hammering system according to the present invention. FIG. 2 is a front view of the multi-
Fig. 3 is a bottom view of Fig.
4 is a cross-sectional view showing the lower structure of the suction /
5 is a bottom perspective view showing a preferred example of the bit body according to the present invention.
6 is a bottom view showing a second embodiment of the multi-core barrel hammering system provided by the present invention.
Fig. 7 is a cross-sectional view showing an example of crushing a non-crushed area, which can be formed between the outer and inner bit bodies when excavated according to the second embodiment of the present invention shown in Fig. 6,
8 is a bottom view showing a third embodiment of the multi-core barrel hammering system provided by the present invention.
Fig. 9 is a front view showing the operating state of Fig. 8
10 is a bottom view showing a fourth embodiment of the multi-core barrel hammering system provided by the present invention.
Fig. 11 is a front view showing the operating state of Fig. 10
Fig. 12 is a flowchart showing an example of performing continuous-wall pile construction for water film construction and the like in the fourth embodiment of the present invention
13 is a bottom view showing a fourth embodiment of the multi-core barrel hammering system provided by the present invention.
Fig. 14 is a front view showing the operating state of Fig. 13
15 is a bottom view showing a sixth embodiment of the multi-core barrel hammering system provided by the present invention.
16 is a front view showing the operating state of Fig. 15

Various embodiments of a multicore barrel hammering system provided by the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a front view of a multi-core barrel hammering system according to a first embodiment of the present invention, and FIG. 3 is a cross- FIG. 4 is a cross-sectional view showing a bottom structure of a suction and discharge pipe according to the present invention, and FIG. 5 is a bottom perspective view showing a preferred example of a bit body according to the present invention.

The multi-core barrel hammering system 1 according to the present invention is an apparatus used in combination with a drum stabilizer 2 of a file drilling machine as shown in the figure, wherein a flange 3 At least two hammer bits 5 provided in the circumferential direction on the edge side of the rotating body 4 and a bit body 5 provided on the hammer bit 5, A plurality of roller bits 6 provided at the bottom of the rotatable body 4 which is a toroidal type so as not to directly interfere with the crushed surface at the top dead center position of the crusher 52 and a suction and discharge tube 7 for discharging the crushed material to the ground .

The rotating body (4) has a cylindrical shape with its bottom open and has a hollow structure such as a donut, and a closed top.

At least two orifice holes 4a are formed in the rotating body 4 so as to open downwardly in the axial direction and the hammer bit 5 is engaged with these holes 4a.

The hammer bit 5 includes a hammer body 51 which is inserted into the assembly hole 4a and is coupled to the rotating body 4, a bit body 52 which is coupled to the hammer body 51 by being lifted and lowered, And a plurality of bits (53) assembled so as to be in contact with the ground at the lower end of the frame (52).

This configuration has the same configuration as that of the drilling horn 1 (KR 200444654 Y1 2009.05.20.) For core barrel work of a file drilling machine owned by the present inventor.

According to the present invention, in constructing the multi-core barrel hammering system 1 configured as described above, it is proposed to effectively dispose the crushed material by the bit body 52, It is possible to maximize the ability to discharge the crushed material while improving the closure ability, thereby doubling the excavating ability.

In order to achieve this, in the present invention, a suction / discharge tube 7 is formed so as to be close to the bit body 52 in the direction opposite to the rotating direction of the rotating body 4, So that the crushing flow path 54 is formed at an obtuse angle.

A preferred example of the rupture channel 54 is formed at an obtuse angle so that the depth gradually increases toward the suction / discharge pipe 7 from the center of the bit body 52, and the width gradually increases. When the bit body 52 is broken by the bit body 52, the broken body flows into the empty broken body flow path 54, and the broken body flows into the broken body flow path 54 As the rotating body 4 rotates, it is exposed downwardly of the suction / discharge pipe 7, and the impurities are quickly sucked into the suction / discharge pipe 7 to be discharged.

Therefore, when the bit body 52 provided in the present invention is applied, the crushed pieces crushed by the bit body 52 are quickly discharged to the suction / discharge pipe 7 before striking again by the bit body 52 in a stagnant state The crushing ability can be enhanced.

The bit body 52 to which the present invention is applied may be circular or rectangular as viewed from the top. Preferably, the bit body 52 having a rectangular configuration is used for the bit body 52, .

In the meantime, according to the present invention, a reservoir receiver 15 is integrally provided on the upper side of the rotating body 4, and a slag reservoir 16 having an open bottom is disposed above the reservoir receiver 15. At this time, the slag reservoir 16 is provided with an assembly hole 16b at the center of the ceiling plate 16a to provide a shape to be fitted in the rod 2a connecting the drum stabilizer 2 and the rotating body 4 . A wire loop 16c is provided on the upper side of the slag reservoir 16 and a lower end of the lifting wire 17 is fixed to a lifter (not shown) fixed to the base. And a suction / discharge pipe (7) installed in the rotating body (4) is extended therein to discharge the crushed material into the slag reservoir (16).

When the slag reservoir 16 is installed, the crushed material is stored in the slag reservoir 16 and the slag reservoir 16 is filled with a predetermined amount of When the crushed material is filled, the entire multi-core barrel hammering system 1 is lifted to the ground, and only the slag reservoir 16 inserted in the rod 2a is moved upward as shown in FIG. 3 to discharge the crushed material. The slag reservoir 16 is raised and the crushing operation is performed again.

In addition, the present invention is configured to have a function of effectively inducing and discharging the crushed material to the underside of the rotating body (4) by the suction and discharge pipe (7).

That is to say, a frusto-conical passage 54 formed in the bit body 52 is integrally formed on the underside of the rotator 4 so as to form a U-shaped inductive partition wall 18 with the bit body 52 opened to the periphery of the suction / So that the particles can be quickly clogged by the induction partition 18 and discharged to the suction / discharge pipe 7 without being scattered to the periphery. At this time, when the bit body 52 is positioned at the top dead center, the lower end of the induction partition 18 is formed to be lower than the bit body 52 with respect to the bottom of the rotating body 4, It is constructed so as not to be interfered with the non-crushed portion so that the crushing is not hindered.

FIG. 6 is a bottom view showing a second embodiment of a multi-core barrel hammering system provided by the present invention, and FIG. 7 is a cross-sectional view of a multi-core barrel hammering system according to a second embodiment of the present invention, And a non-crushed area, which may be formed between the bit bodies, is broken with a roller bit.

The barrel hammering system provided in the second embodiment of the present invention proposes a configuration in which the hammer bit 5 is arranged concentrically to the rotating body 4. As shown in the drawing, three concentric circles are arranged so that three hammer bits 5 are arranged on the outer side and two hammer bits 5 are arranged on the inner side.

The bit body 52 of the outer hammer bit 5 and the bit body 52 of the inner hammer bit 5, which are arranged concentrically,

The outer bit body 52 serving as the first reference and the shredding area overlapping part of the inner bit body 52 are provided. However, when the outer side and the inner side bit body 52 are made to overlap with each other, the overlapping portions are overlapped to be crushed so that the crushing ability is reduced.

The outer bit body 52, which is the second criterion, and the fracture region of the inner bit body 52 can be linearly contacted. Such a configuration can solve the problem of reduction in crushing ability as in the first arrangement and provide a crushing area that matches the cross-sectional area of the bit body 52.

The non-fractured region 11 is formed between the outer bit body 52 as the third criterion and the fracture region of the inner bit body 52. The non-crushed region 11 is positioned such that the outer bit body 52 and the inner bit body 52 are positioned to have a narrow width of 10 to 50 mm and the non- So that the roller bit 6 to be installed can be positioned.

Since the thin non-crushed area 11 is crushed by the rolling movement of the roller bit 6, it is possible to maximize the crushing ability by providing a wide crushed surface together with the bit body 52 located outside and inside .

FIG. 8 is a bottom view showing a third embodiment of the multicore barrel hammering system provided by the present invention, and FIG. 9 is a front view showing the operating state of FIG.

In the multi-core barrel-drilling system 1 according to the third embodiment of the present invention, in the construction of the first or second embodiment, the center of the rotating body 4 in which the hammer bits 5 are concentrically coupled And a center body hammer bit 8 to which a bit body 81 having a circular cross section is coupled.

In the case where the multi-core barrel hammering system 1 is provided with the centering hammer bit 8 at the center of the rotating body 4 as described above, when the rotating body 4 rotates, the centering hammer bit 8 Is crushed to break the core-generating portion while rotating together with the hammer bits 5 which are concentrically coupled to the rotating body 4, so that the core is crushed to form a core at the center using the first and second embodiments The excavation of the large diameter can be performed at one time without inconvenience of further performing the core separating step for separating the core after the process, thereby improving the excavation efficiency.

FIG. 10 is a bottom view showing a fourth embodiment of the multi-core barrel hammering system provided by the present invention, and FIG. 11 is a front view showing the operating state of FIG.

In the fourth embodiment of the present invention, as in the third embodiment, in the first or second embodiment, the center of the rotating body 4, in which the hammer bit 5 is concentrically coupled, ). The auger 9 is installed to pass through the center of the drum stabilizer 2 and is installed to be driven together with the rotating body 4. [

10, which can be used when constructing a continuous wall pile construction (also referred to as a PIP method) for large-scale construction, such as a water film construction, as shown in FIG. 10, Side edge overlap portion 12a of the two adjacent pillars 12 can be crushed and the soil layer 13 between the pillars 12 can be punched into the auger 9 The construction of the continuous wall pile for the construction of the water wall can be shortened and the construction cost can be expected to be reduced.

FIG. 12 is a bottom view showing a fifth embodiment of the multicore barrel hammering system provided by the present invention, and FIG. 13 is a front view showing the operating state of FIG.

In the fifth embodiment of the present invention, as in the third embodiment, the first embodiment or the second embodiment is constituted such that the center of the rotating body 4, in which the hammer bits 5 are concentrically coupled, ) So that the core portion can be broken. The centering hammer bit 10 is provided on the auger shaft 91 at a position eccentric to one side of the bit body 101 when viewed from the bottom, A suction and discharge pipe 7 is formed to rapidly discharge the crushed material by the auger 9 and the center hammer bit 10 through the crushing passage 102 formed in the bit body 101. [ The auger 9 is provided through the center of the drum stabilizer 2.

This configuration also has a configuration in which the core-generating portion together with the hammer bits 5 concentrically coupled to the rotating body 4 is crushed by the auger 9 and the center hammer bit 10 as in the third embodiment The excavation of the large diameter can be performed at one time without the need of further performing the core separating step of separating the cores after the step of crushing the cores to be formed at the center by using the first and second embodiments, Can be described.

FIG. 14 is a bottom view showing a sixth embodiment of the multi-core barrel hammering system provided by the present invention, and FIG. 15 is a front view showing the operating state of FIG.

The sixth embodiment of the present invention can be applied to the first to third embodiments and the fifth embodiment, and particularly, it can effectively operate on the lipid such as repetition of the ovoid layer and the soil layer, The casing 14 can be lowered together with the multi-core barrel hammering system 1 of the present invention.

The sixth embodiment of the present invention has a configuration in which the hammer bit 5 coupled to the rotating body 4 is formed so as to be exposed to the outside of the rotating body 4 by the thickness of the casing 14. [ It is apparent that the first embodiment is shown on the basis of the drawings and that the second to fifth embodiments are also applicable in the same manner.

The casing 14 is disposed outside the rotating body 4 because the excavated bit 5 is exposed to the outside of the rotating body 4 by the extended excavation when the present invention is constructed as in the sixth embodiment The casing 14 can be press-fitted into the underground together with the rotating body 4, so that an effective drilling operation can be carried out even in the geology where alternate appearance of the osteoclast layer and the soil layer alternately occurs.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of protection of the present invention should not be limited to the described embodiment, but should be determined by the equivalents as well as the claims that follow.

1: Multicore barrel hammering system 2: Drum stabilizer
2: Rod 3: Flange
4: Rotor 4a: Assembly hole
5: Hammer bit 51: Hammer body
52: bit body 53: bit
54: Rupture flow path 6: Roller bit
7: suction and discharge pipe 8,10: center-use hammer bit
81,101: Bit body 9: auger
91: auger shaft 11: non-shredding area
12: Column 13: Soil layer
14: casing 15:
16: Slag reservoir 16a: Ceiling plate
16b: assembler 16c: wire loop
17: lifting wire 18: induction partition

Claims (10)

(4) formed in a cylindrical rotary body (4) to be used in combination with a drum stabilizer (2) of a file drilling machine and which is provided with a hammer A bit 5 and a roller bit 6 provided in the rotating body 4 so that the bit body 52 does not directly interfere with the fracture surface at the top dead center, 5. A multi-core barrel hammering system (1) configured to include a suction and discharge tube (7) for discharging a crushed material by an upper portion (5) upwardly;
The suction and discharge tube 7 is formed to be close to the bit body 52 in the direction opposite to the rotating direction of the rotating body 4;
The crushing passage 54 is formed at the bottom of the bit body 52 so as to be opened toward the suction and discharge pipe 7 from the center so that the crushed material crushed by the bit body 52 is discharged to the suction and discharge pipe 7 ;
Wherein the rupture channel (54) formed in the bit body (52) gradually widens from the center of the bit body (52) to the outside of the bit body (52) to discharge the ruptured material.
delete (4) formed in a cylindrical rotary body (4) to be used in combination with a drum stabilizer (2) of a file drilling machine and which is provided with a hammer A bit 5 and a roller bit 6 provided in the rotating body 4 so that the bit body 52 does not directly interfere with the fracture surface at the top dead center, 5. A multi-core barrel hammering system (1) configured to include a suction and discharge tube (7) for discharging a crushed material by an upper portion (5) upwardly;
The hammer bit (5) is arranged in the rotating body (4) so as to have a plurality of concentric circles;
The suction and discharge tube 7 is formed to be close to the bit body 52 in the direction opposite to the rotating direction of the rotating body 4;
The crushing passage 54 is formed at the bottom of the bit body 52 so as to be opened toward the suction and discharge pipe 7 from the center so that the crushed material crushed by the bit body 52 is discharged to the suction and discharge pipe 7 ;
A non-fracture region is created between the outer bit body (52) and the inner bit body (52) fracture region;
Wherein the roller bits (6) are arranged to be positioned in a non-fracture region of the hammer bit (5) arranged in the outer concentric circle and the hammer bit (5) boundary arranged in the inner concentric circle.
(4) formed in a cylindrical rotary body (4) to be used in combination with a drum stabilizer (2) of a file drilling machine and which is provided with a hammer A bit 5 and a roller bit 6 provided in the rotating body 4 so that the bit body 52 does not directly interfere with the fracture surface at the top dead center, 5. A multi-core barrel hammering system (1) configured to include a suction and discharge tube (7) for discharging a crushed material by an upper portion (5) upwardly;
The hammer bit (5) is arranged in the rotating body (4) so as to have a plurality of concentric circles;
The suction and discharge tube 7 is formed to be close to the bit body 52 in the direction opposite to the rotating direction of the rotating body 4;
The crushing passage 54 is formed at the bottom of the bit body 52 so as to be opened toward the suction and discharge pipe 7 from the center so that the crushed material crushed by the bit body 52 is discharged to the suction and discharge pipe 7 ;
(8) in which a bit body (81) having a circular cross section is coupled to the center of a rotating body (4) in which the hammer bit (5) is arranged concentrically is further provided. system.
(4) formed in a cylindrical rotary body (4) to be used in combination with a drum stabilizer (2) of a file drilling machine and which is provided with a hammer A bit 5 and a roller bit 6 provided in the rotating body 4 so that the bit body 52 does not directly interfere with the fracture surface at the top dead center, 5. A multi-core barrel hammering system (1) configured to include a suction and discharge tube (7) for discharging a crushed material by an upper portion (5) upwardly;
The hammer bit (5) is arranged in the rotating body (4) so as to have a plurality of concentric circles;
The suction and discharge tube 7 is formed to be close to the bit body 52 in the direction opposite to the rotating direction of the rotating body 4;
The crushing passage 54 is formed at the bottom of the bit body 52 so as to be opened toward the suction and discharge pipe 7 from the center so that the crushed material crushed by the bit body 52 is discharged to the suction and discharge pipe 7 ;
A multi-core barrel hammering system according to claim 1, further comprising an auger (9) driven together with the rotating body (4) at the center of the rotating body (4) in which the hammer bits (5) are concentrically arranged.
The method of claim 5, further comprising:
On the auger shaft (91), a center hammer bit (10) is installed so that one side of the bit body (101) touches the center of the auger (9);
A suction and discharge pipe 7 is formed on the side opposite to the rotating direction of the center-use hammer bit 10 to discharge the crushed material discharged through the crushed material flow path 54 formed in the bit body 101 and the crushed material crushed by the auger 9 Gt; a < / RTI > multi-core barrel hammering system.
The method according to any one of claims 3 to 6,
Wherein the rupture channel (54) formed in the bit body (52) gradually widens from the center of the bit body (52) to the outside of the bit body (52) to discharge the ruptured material.
The method according to any one of claims 1 to 6,
Wherein the hammer bit (5) coupled to the outer circumference of the rotating body (4) is formed so as to be exposed to the outside of the rotating body (4) by the thickness of the casing (14).
The method according to any one of claims 1 to 6,
A reservoir receptacle 15 is integrally provided on the upper side of the rotating body 4 and a slag reservoir 16 having an open bottom is disposed above the reservoir receptacle 15,
The slag reservoir 16 has an assembly hole 16b at the center of the ceiling plate 16a and is fitted in a rod 2a connecting the drum stabilizer 2 and the rotating body 4, A wire loop 16c is provided to fix the lower end of the lifting wire 17,
Wherein a suction / discharge pipe (7) installed in the rotating body (4) is extended to discharge the crushed material into the slag storage box (16).
The method according to any one of claims 1 to 6,
The induction partition 18 of the U-shape in which the bit body 52 is opened to the periphery of the suction and discharge pipe 7 is integrally formed on the lower side of the rotating body 4,
When the lower end of the induction partition 18 is positioned at the bottom of the rotor 4 and the lower end of the induction partition 18 is located at the top dead center, Wherein the multi-core barrel hammering system is constructed so as not to be in contact with the non-crushed portion.

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