KR100938934B1 - Apparatus for pressing steel pipe into ground - Google Patents

Abstract

Provided is a pipe member press-fitting device for use in underground press-fitting construction of steel pipes.

The pipe member press-fitting apparatus includes: excavating means inserted into the ground while being rotated in association with a drive unit disposed outside; and a bit unit provided to implement the excavation of the ground in the excavating means, and having a multi-part assembly type; And a press-fit pipe member which is arranged on the outer edge of the excavating means and is press-fitted into the ground, while the high-pressure medium supply means is provided to the excavating means and the bit unit to spray the high-pressure medium to the excavation site of the ground; And excavation residue treatment means provided between the tubular member and the excavating means while communicating with the bit unit and the bit unit to enable external treatment of the high pressure medium and the excavation residue.

According to the present invention, it is easy to externally process (discharge) of excavation residues (soil or microstone, etc.) generated during excavation while facilitating underground excavation when the pipe member (steel pipe) is pushed in the ground. It facilitates the assembly and disassembly of the bit unit, prevents parts damage during excavation, minimizes over-cutting due to excavation by minimizing disturbance of existing ground, and ultimately improves the steel pipe indentability and shortens air. Improved effects can be obtained.

Description

APAPATUS FOR PRESSING STEEL PIPE INTO GROUND}

The present invention relates to a pipe member indentation apparatus used in the press-fitting construction of the pipe member, especially steel pipe in the ground (ground), and more specifically, when the excavation while facilitating the underground excavation of the pipe member (steel pipe) It also facilitates the external treatment (discharge) of excavation residues (such as soil or microstones) generated, in particular, facilitates the assembly and disassembly of bit units, prevents damage to parts during excavation, and minimizes disturbance of existing ground. By minimizing the over cutting due to the excavation, and ultimately to a pipe member indentation device to improve the steel pipe indentation workability and shorten the air.

The pipe member, that is, pipe-shaped steel pipe, can be used to purchase the target object without affecting traffic flow or ground water without fixing roads, rivers, railways, etc. In recent years, the steel pipe press-fitting method which pushes and press-fits is commercialized.

The steel pipe protruding method is to dig a tunnel that is slightly longer than the length of the unit steel pipe in the ground at the beginning of the point where the pipe is to be buried, and then lay the steel pipe in the tunnel so that the tip of the steel pipe is directed toward the side wall of the tunnel. In the state, it presses the steel pipe into the ground by pushing the rear end of the steel pipe forward by using the hydraulic jack, discharges the earth and sand inside the steel pipe by manpower, and then connects the other steel pipe to the rear end of the preceding steel pipe and presses it in. Non-removable excavation method that is constructed through.

However, in the above case, since the steel pipe indentation and the soil transport in the pipe are carried out at the same time, the construction period of the actual steel pipe indentation is long, and in particular, the construction is difficult when the soil or rock of hard nature is included.

On the other hand, in the case of underground press-fitting of steel pipes, in some cases, steel pipes are press-fitted while drilling the end of steel pipes. In order to perform a mechanical indentation while performing a press-fit of the steel pipe.

For example, in the case of manpower type, blasting type excavation was performed, and in the case of mechanical type, steel pipe indentation was carried out by first excavating soil soil or rock using a small diameter bit.

Therefore, in the conventional case, not only the excavation of unnecessary large pipe diameters is required in the case of manpower excavation but also the construction speed is very low, and in the case of the mechanical excavation form of the vehicle-mounted type, the steel pipe diameter is limited to about 100 mm or less. There is a problem that the damage of the excavation parts are easily generated, and in particular, the treatment (transportation) of excavation residues such as earth and sand, which occur at the excavation site, is not easy.

Accordingly, the applicant of the present invention improves the structure of the excavation parts, while facilitating the horizontal pipe indentation, and also facilitates the external (transportation) processing of excavation residues such as soil and microstones generated during excavation. The invention was proposed.

The present invention has been proposed in order to solve the conventional problems as described above, the object of the present invention is that the excavation residues (soil or fine stone, etc.) generated during excavation while facilitating the excavation of the ground during the press-fitting of the pipe member (steel pipe) ) Facilitates external treatment (discharge), especially assembling and disassembling the bit unit, and prevents damage to parts during excavation, while minimizing overload due to excavation by minimizing disturbance of existing ground, ultimately An object of the present invention is to provide a pipe member indentation device that improves steel pipe indentability and shortens air.

As a technical aspect for achieving the above object, the present invention, the excavation means is inserted into the ground while being rotated in association with the drive unit disposed outside; and including a hammer; and excavation underground drilling on the hammer of the excavating means A bit unit provided to be provided in a multi-part assembly; And a press-fit pipe member which is disposed on the outer edge of the excavating means and press-fitted into the ground.
The bit unit may include a center bit assembled to be hammerable at the hammer tip of the excavating means, a ring bit assembled to enable the center bit to be hammerable, and a support ring to surround the ring bit and to connect a pipe member. It is composed of a multi-part assembly type, including at least one of the center bit and the ring bit, the drilling bit is provided, the hammer and the center bit, the ring bit, the rail portion for supporting the hammering of the center bit And guide grooves are provided, respectively, and provide a pipe member press-fitting device further comprising a reinforcing plate associated with the pipe member.

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In addition, as another technical aspect of the present invention, an excavation means including a hammer that is inserted into the ground while being rotated in association with an externally arranged drive unit and includes an excavation bit unit; A press-fit pipe member which is press-fitted into the ground; and a high-pressure medium supply means provided to the excavating means and the bit unit to spray the high-pressure medium onto the excavation site of the ground; And excavation residue treatment means provided between the tubular member and the excavating means while communicating with the bit unit to provide the external processing of the high pressure medium and the excavation residue.
The high pressure medium is composed of high pressure water and high pressure air, and the high pressure medium supply means includes a main passage provided in a connecting rod connected between a hammer or a hammer and a driving unit, and a center provided in the bit unit so as to communicate with the main passage. It provides a bit passage formed in the bit, and one or more high-pressure medium injection port associated with the bit passage and provided in the center bit.

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According to the present invention, when the steel pipe press-fitted and pushed to the pipe members such as steel pipes, the excavation residues such as soil, micro-stones, etc. generated during excavation while facilitating underground excavation through the hammering operation Because it is externally treated, it provides an excellent effect of making steel pipe indentation very easy.

In addition, since the present invention minimizes over-cutting due to excavation by minimizing disturbance of existing ground, at the same time improving excavation property during underground indentation of the pipe member, that is, steel pipe, and generating excavation residues through suppression of the excavation. Minimizing this gives an excellent effect.

In particular, the present invention provides yet another excellent effect of facilitating the assembly and disassembly of the bit unit that allows substantial excavation in contact with the ground, and also prevents component breakage during excavation.

Therefore, the present invention ultimately makes it possible to considerably shorten the air while improving the indentation workability of the pipe member (steel pipe).

Hereinafter, a preferred embodiment of the present invention according to the accompanying drawings.

First, Figures 1 and 2 show the overall configuration of the pipe member indentation apparatus 1, that is, steel pipe indentation apparatus according to the present invention in a schematic perspective view and a configuration diagram.

On the other hand, the pipe member press-fitting apparatus 1 of the present invention actually includes a bit unit 30, as will be described in detail below, unlike the conventional simply press-embedded steel pipe in the ground with a hydraulic cylinder or a hydraulic jack. Since the excavation means 50 is included, it is a mechanical (excavation) type indentation apparatus that facilitates underground laying of steel pipes in parallel with underground excavation.

In particular, the pipe member press-fitting apparatus 1 of the present invention is suitable for horizontal press-fitting of steel pipes, and is applicable to press-fitting small and medium-sized steel pipes, as compared with the application of excavation to existing conventional large-size steel pipes. Of course, it is not necessarily limited thereto.

However, hereinafter, the pipe member will be described as a steel pipe 70.

As shown in Figure 1 and 2, the steel pipe indentation apparatus 1 of the present invention, while being rotated in conjunction with the drive unit 10 disposed largely indented (injected) in the ground and drill bit unit 30 Excavation means (50) including a), and is disposed on the outer periphery of the excavating means 50, characterized in that it comprises a pressurized pipe member 70 which is press-installed in the excavated underground.

On the other hand, the steel pipe indentation apparatus 1 of the present invention, the high pressure medium, that is, the high pressure water (W) or at least one of the high pressure air (A) or a combination of these excavating means 50 to be sprayed to the excavation site of the ground complex It further comprises a high pressure medium supply means 90 provided to.

In addition, the steel pipe indentation apparatus 1 of the present invention is provided between the bit unit 30 and the pipe unit 70 and the excavating means 50 while being in communication with the bit unit, and when excavating with the injected high pressure medium. It may further include excavation residue treatment means 110 to enable the external treatment of the generated excavation residue (T).

Therefore, the steel pipe indentation apparatus 1 of the present invention, because the earth and sand or rock is excavated through the bit unit 30 of the excavating means 50 that is moved in the indentation direction while being rotated, above all, simply Compared to the steel pipe through the press-fit only, it is very easy to press the steel pipe in the ground.

In particular, the apparatus of the present invention by spraying the high-pressure water (W) and high-pressure air (A) from the bit unit to the underground excavation site through the excavation means, excavation residues generated when excavating through the bit (38 of FIG. 5) ( T) That is, excavation residues such as microstones and soils (soil) is easily treated to the outside of the ground along the high-pressure water (W) and high-pressure air (A) sprayed at a high pressure.

Therefore, since the external treatment of the excavation residue is facilitated, the steel pipe indentation can be smoothly constructed by that much.

In this case, as shown in Figures 1 and 2, in the device of the present invention, the drive unit 10, the moving frame 16 is installed to be movable (sliding) along the base 20 arranged in the pressing direction on the ground. And a driving member 12 connected to a rear end of the drilling means 50 and a pipe member 70 disposed on the outer edge of the drilling means 50 on the opposite side of the driving portion of the base 20. It may be configured to include a support unit 14 provided so far.

At this time, although schematically shown in Figure 1, the drive unit 12 side is provided with a bearing unit 14 'for supporting the rotation on the base, the drive unit 12 is associated with a known motor or hydraulic motor for rotation It includes a reducer (gear) and includes a rotation block 13 as shown in FIG. 2 associated with the reducer.

That is, as shown in Figure 2, the hammer block 54 (initial) or the connecting rod 56 (when the pressing is in progress) of the excavating means 50 described in detail in the rotation block 13 is connected and rotated In addition, a casing (unsigned) outside the rotating block is connected to a high pressure medium supply pipe 15 for supplying a high pressure medium, for example, high pressure water W and a high pressure air A.

Although the high pressure medium supply pipe 15 is schematically illustrated in the drawings, the high pressure medium supply pipe 15 is connected to the communication state through a casing to supply the high pressure medium to the rotation block 13 through a rotary joint or the like.

In addition, a drain pipe 15 ′ for an external drain of the excavated residue T to be recovered may be connected to a lower portion of the casing outside the rotation block.

At this time, the rotational speed of the rotation block 13 is about 3-4 rpm at low speed, and thus, the drilling unit 50 and the bit unit 30 provided to be hammerable at the distal end thereof also rotate at low speed in actual operation. do.

For example, the excavation in the present invention is made in parallel with the hammering operation and the rotation operation.

At this time, the front end of the rotation block 13, the male screw coupling formed on the rear end of the hammer 54 of the excavating means 50 or the connecting rod 56 to push the hammer during the underground press-fit of the steel pipe described in detail below The female screw coupling part 52b to which the part 52a is fastened is provided.

As a result, the excavation means 50 of the connecting rod 56 and the hammer 54 are sequentially connected to the rotation block 13 which is operated by the motor (unsigned) of the driving unit 12 and rotated through the speed reducer (unsigned). Is rotated at a low speed, and as shown in FIG. 1, the moving frame 16 having the driving unit 12 fixed to the upper portion and seated inside the base 20 is advanced in the pressing direction through a hydraulic cylinder or a hydraulic jack (not shown), and thus excavation is performed. The means 50 and the bit unit 30 are injected (pressurized) to enable drilling into the ground.

For example, although not shown in detail in the drawings, the movable frame 16 is slidably seated on the base 20, such a movable frame is not shown hydraulic cylinder (mobile frame bottom associated with the base) It can be provided to be able to advance in the indentation direction through the arrangement).

Therefore, the drilling unit 50 and the bit unit 30 provided to be hammerable at the front end thereof are gradually injected (pressurized) into the ground and rotated to perform underground excavation through the bit unit.

On the other hand, the base 20 may be disposed in the press-in direction long on the rung 18 of the ground and the rung 17 for adjusting the horizontal to the horizontal bar, the support unit 14 is provided on the rung as shown in FIGS. Can be installed.

Such a support unit is schematically shown, but may include a clamping member (not shown) for supporting the press-in (advanced) of the steel pipe 70 disposed on the outer edge of the excavating means 50, and thus pressing and supporting the steel pipe. .

At this time, as shown in Figure 2 and 3, the connecting rod 56 and the steel pipe 70 disposed on the outer periphery is actually more and more numbers are sequentially increased as the depth of the hammer 54 is pushed into the ground Of course, connected.

That is, as shown in Figure 2, the outer steel pipe 70 is connected to the connecting ring 72 connected to the rotating block side casing, and then the steel pipe is pressed into the ground to the connecting rod 56 and the hammer 54 outside 2 and 4, the tip end portion of the steel pipe 70 is connected to the support ring 36 of the bit unit 30 described in detail below.

The support ring 36 surrounds the bit ring 36 in which the center bit 32 is assembled to be hammerable.

On the other hand, the excavation means 50, as shown in Figures 2 to 5, in particular, is connected to the drive unit 12, and includes a hammer 54 provided with the drilling bit unit 30 In particular, in the present invention, the bit unit 30 is provided in a multi-part assembly type at the hammer tip.

Therefore, as will be described in detail below, since the bit unit 30 which performs substantially underground excavation in the apparatus of the present invention is a multi-part assembly type, only a part is replaced when a problem occurs, thus maintaining equipment. It is to facilitate the repair, and to enable a smooth excavation construction.

At this time, as shown in Figures 2 and 4, 5, as described above, the hammer 54 and the connecting rod 56, female, male screw coupling portion 52b (52a) is fastened and connected to each other in the form of a screw Are easily connected, including

On the other hand, as shown in Figures 2 and 3, the space between the steel pipe 70 and the excavating means, that is, the connecting rod 56 and the hammer 54, for example, excavation residue treatment described in detail below The support 74 for maintaining the gap of the outer processing passageway 114 of the means 110 in the vertical and horizontal direction of the steel pipe can be arranged at predetermined intervals along the connecting rod and hamber in all directions.

Such a support 74 may be provided attached to the connecting rod and the outer edge of the hammer, the support of the connecting rod and the hammer rotates at a low speed inside the steel pipe is supported to be press-fitted through the support unit 14 It also supports the meeting. Of course, the connecting rod and the hammer are integrally coupled in a straight line by the screw method.

Next, in the apparatus of the present invention that affects underground excavability, the bit unit 30, as shown in Figs. 4 and 5, the center bit 32 is assembled to be hammerable at the tip of the hammer 54, And a ring bit 34 in which the center bit 32 is hammerably assembled, and a support ring 36 surrounding and enclosing the ring bit 34 and to which the pipe member 70 is connected. It will be provided as an assembly.

At this time, the center bit 32 and the front face (ground contact surface) of the ring bit 34 are equipped with a known drilling bit 38 made of industrial diamond or the like.

On the other hand, as shown in Figures 4 and 8, the steel pipe 70 is firmly (welded) is coupled in a supported state caught by the step portion 39 formed in the rear end of the support ring 36, the support ring (36) is actually two semi-circular rings (36a, 36b) combined (assembled) surrounding the ring bit 34, as shown in Figure 5, and thus assembled into the ring bit 34 and therein The center bit 32 is assembled in a hemmerable state in the state supported by the support ring at the hammer tip.

Therefore, the hammering operation of about 20 times per second when the high pressure medium, that is, the high pressure water (W) and the high pressure air (A), is implemented.

As a result, as shown in Figure 1, the steel pipe is supported on the support unit 14, the steel pipe is fixed and connected to the support ring, the support ring is to support the ring bit so as to be hammerable so that excavation through the drilling means and the bit unit Is done.

At this time, the steel pipe 70 is buried under the ground as the new steel pipe is injected and pressed in the same manner as the connecting rod.

Therefore, as shown in FIG. 2, the steel pipe 70 and the hammer 54 side of the connecting rod side connected (screwed or welded) to the connecting ring 72 welded to the casing (unsigned) of the rotating block 13 side. Of the steel pipe 70 is pressed tightly and is pushed into the ground, and the front end of the hammer-side steel pipe 70 is welded to the rear end of the support ring 36, the residual excavation (T) is reversely recovered the center bit Through the casing of the rotating block through the space between the hammer and the connecting rod and the steel pipe can be externally smoothed.

In other words, the steel pipes are firmly connected from the outside to the excavation position and press-propelled, and the support unit 14 supports them.

Meanwhile, as shown in FIGS. 4 and 5, the reinforcing plate 40, that is, the reinforcing plate having a circumferential length of about 120 ° based on the center line in the vertical direction of the steel pipe, is attached to the lower portion of the steel pipe connection portion of the support ring 36. have.

Such reinforcement plate 40 compensates for the gap ('g' in FIG. 4) formed between the steel pipe 70 and the ground due to the excavation radius of the ring bit 34 to be described in detail below. It serves to prevent the means 50 from sagging down, and also supports the lower part, thereby maintaining the firmness of the excavation site.

In addition, as shown in Figures 4 and 8, the reinforcement plate 40 is fixed to the steel pipe 70 and the support ring 36, the position of the reinforcement plate is changed when the steel pipe is rotated from the outside, in this case It may also serve to suppress the indentation direction is separated from the normal direction during the indentation. That is, if the position of the reinforcing plate 40 is adjusted by twisting the steel pipe, it will be possible to adjust the steel pipe indentation direction by suppressing the progress of the indentation direction to the portion.

At this time, as shown in Figures 4, 5 and 7, the rear end of the center bit assembled in the hammer 54 and the hammer tip of the drilling means in the apparatus of the present invention, and the center bit and the center bit are assembled The ring bit is provided with rail portions 42 and 44 and guide grooves 46 and 48 supporting the hammering of the center bit, respectively.

Therefore, the rear end rail 42 of the center bit 32 is intermittent in the guide groove 46 formed inside the hammer tip, and the rail 44 formed along the outer edge of the center bit 32 is the center bit. Inserted into the guide grooves 48 formed in the ring bit 34 to be assembled, respectively, so that even if a rapid hammering operation (for example, 20 times per second) of the center bit at the hammer tip during hammering, twisting or the like occurs As a result, a stable excavation is possible.

On the other hand, as shown in Figures 4 and 5, the support ring 36 is a semi-circular support ring (36a, 36b) is assembled, but the front end of the projection 35 formed on the rear end of the ring bit 34 The latching jaw portion 37 to be supported is formed integrally.

Therefore, the ring bit and the center bit hemming of the support ring is smoothly made.

At this time, preferably as shown in Figure 8, the engaging jaw portion 37 of the support ring 36 is to be spaced apart by 'S' from the projection 35 of the ring bit (34).

That is, since the ring bit protrusion 35 is spaced apart at the beginning of the operation, the locking step 37 surrounds the stepped portion of the rear end of the ring bit even when the center bit 32 and the ring bit 34 are hammered. The locking jaw portion 37 inside the tip end portion of the support ring, which is not detached while supporting, is in contact with the ring bit protrusion and does not break with each other.

On the other hand, such a ring bit and the support ring is spaced apart at an interval S is shown in Figure 2, the outer casing (unsigned) and the connecting rod-side steel pipe 70 of the rotation block 13 (or initially Hammer 54 can be adjusted to the connecting ring 72 for connecting the steel pipe (70).

For example, when the initial hammer 54 enters the ground, the support ring is brought into close contact with the ring bit, and when the drilling is performed, the steel ring 70 connected to the rotation block 13 is connected to the connection ring ( 72 is connected at intervals by 'S' of FIG. 8, the rear end of the end engaging jaw portion 37 and the ring bit 34 of the support ring 36 is fixed to the front end of the steel pipe 70 as shown in FIG. The gap 'S' is formed between the stepping portions 35.

Therefore, the engaging jaw portion 37 of the support ring to prevent the separation of the ring bit during the hammering operation of the ring bit and the center bit is in contact with the protrusion 35 of the ring bit does not break each other.

On the other hand, as shown in Figures 2 and 4 and 5, the high-pressure medium in the device of the present invention is that at least one of the high-pressure water (W) and high-pressure air (A) is preferably all of them, the The high pressure medium supply means 90 is connected to the main passage 92 provided in the connecting rod 56 and the hammer 54 constituting the excavating means, and to the bit unit 30 so as to communicate with the main passage 92. And a bit passage 94 formed in the provided center bit 32, and one or more high pressure medium injection holes 96 associated with the bit passage and formed in the center bit.

Thus, as shown in Figure 2 and 3, the high-pressure water and high-pressure air through the main passage 92, which is a hollow portion formed in the hammer 54 and the connecting rod 56 of the drilling means 50 is the center of the bit unit The high-pressure medium injection hole 96 is supplied to the bit passage 94 penetrated at the center of the bit 32, and the bit passage is branched inside the front face of the center bit so that at least one penetrates the front face of the center bit as shown in FIG. In communication with

At this time, the main passage 92 provided in the connecting rod and the hammer is implemented by the path of the rotation block-> female, male screw coupling-> connecting rod-> female, male screw coupling-> hammer.

As a result, when the high pressure medium is supplied to the rotating block 13 of FIG. 2 through the supply hose (15 of FIG. 2), the high pressure medium is injected at high pressure through the main passage, the bit passage, and the injection hole at the underground drilling site, and the high pressure medium is described above. As described above, the hammering of the center bit (ring bit) of the bit unit 30 is enabled.

On the other hand, the excavation residue treatment means 110 in the apparatus of the present invention, the recovery passage 112 and the recovery passage 112 formed concave along the outer edge in the center bit 32 included in the bit unit 30. And an external processing passage 114 formed between the tubular member, the hammer, and the connecting rod to extend to the rotation block casing of the driving unit 10 to enable external processing of the high pressure medium and the excavation residue.

The recovery passage 112 is surrounded by the inner side of the ring bit to form a passage, and the space between the rear steel pipe, that is, the outer processing passage 114 through the stone jaw supported by the ring bit to the rear end of the center bit. In communication with

And, as shown in FIG. 2, the external processing passage 114 is formed by the path of the hammer-> connecting rod-> rotating block side casing-> discharge hose 15 'so that the excavation residue is quickly externally processed.

On the other hand, preferably as shown in Figure 5 and 7, the center bit 32 is connected to the bit recovery passage 112 and the high-pressure medium injection port 96 to facilitate the external treatment of the excavation residue The above concave groove portion 116 is further provided.

Therefore, the supplied high pressure water and the high pressure air are sprayed into the ground, and the space for exiting them is recovered through the recovery passage 112 penetrated toward the external processing passage 114 at the rear end of the center bit.

As a result, the sprayed high-pressure water (W) and the excavation residue (T), that is, the earth and sand or the like, the recovery path 112 between the beat recovery passage 114 of the center bit and the hammer and the connecting rod of the steel pipe and the excavating means Through the discharge to the discharge position is discharged.

This facilitates the external treatment of the residue, and thus facilitates the steel pipe indentation through underground excavation.

In addition, the center portion of the center bit is formed to be concave, and it is also preferable to form a flat front surface with the outer edge thereof, which will slightly concave the portion where the injection hole is formed to facilitate the ground injection and recovery. Of course, it is also possible to form a front surface of the center bit is flat.

6A to 6D, the center bit 32 may be formed to protrude more than the ring bit 34 as necessary.

For example, protruding such a center bit forward than the ring bit makes it possible to retract the center bit by its protruding width ('T' in FIG. 6D) and prevents the center bit from being rotated by the microstones during operation. If no jam occurs, it is possible to reverse the center bit within the protrusion width T to eliminate the jam.

In this case, since the substantial cost increases according to the protrusion width of the center bit, it may be desirable to adjust the protrusion width according to the diameter of the steel pipe or the soil to be indented and excavated as shown in FIGS. 6A to 6D.

As mentioned above, although this invention was demonstrated in detail using the preferable embodiment, the scope of the present invention is not limited to a specific embodiment, Comprising: It should be interpreted by the attached Claim. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

1 is a schematic perspective view showing a pipe member indentation apparatus according to the present invention

2 is a configuration diagram of FIG. 1

3 is a schematic front view showing the excavating means and the pipe member of FIG.

Figure 4 is a detailed structural diagram showing a hammer and a bit unit of the excavating means in the apparatus of the present invention

5 is an exploded perspective view of FIG.

6A to 6D are plan views showing various types of center bits of the bit unit according to the present invention.

7A and 7B are front views showing the center bit and bit ring assembly state and the bit ring of the bit unit according to the present invention.

Figure 8 is a main view showing the rolled apart state when the support ring and the bit ring assembly in the device of the present invention

* Description of the symbols for the main couples in the drawings

1 .... pipe indentation device 10 .... drive unit

12 .... Drive 14. Support Unit

16 .... Move Frame 20 .... Bass

30 .... Bit unit 32 .... Center bit

34 .... ring bit 35 .... ring bit

36 .... support ring 37 .... support ring

38 ... bit 40 ... gusset

42,44 .... Rail 46,48 .... Guide groove

50 .... Excavation 54 .... Hammer

56 .... Connecting rod 70 .... Tube member

72 .. Connection ring 90 .. Medium pressure supply means

92 .... Main passage 94 .... Bit passage

96 .... High pressure medium nozzle 110 .... Excavation residue treatment means

112 ... Recovery passage 114 .... External treatment passage

116 .... Home

Claims (12)

Excavation means 50 is inserted into the ground while being rotated in association with the drive unit 10 disposed outside; and includes a hammer 54; Bit unit 30 composed of; And a press-fit pipe member 70 which is disposed on the outer edge of the excavating means and press-fitted into the ground. The bit unit 30, the center bit 32 is assembled to be hammerable to the hammer tip of the excavating means, the ring bit 34 is assembled so that the center bit 32 is hammerable, and the ring It is composed of a multi-part assembly including a support ring 36 that surrounds the bit 34 and the tubular member is connected, and at least a center bit of the center bit and the ring bit is provided with drilling bits 38, The hammer, the center bit, and the ring bit are provided with rail portions 42 and 44 and guide grooves 46 and 48 supporting the hammer ring of the center bit, respectively, and are connected to the pipe member 70. Pipe member press-fitting device further comprising a reinforcing plate (40). Excavation means (50) including a hammer 54 is inserted into the ground and rotated in association with the drive unit (10) disposed outside and having a drilling bit unit 30; And, the excavation means (50) A press-fitting pipe member 70 disposed on the ground and press-fitted in the ground; and a high-pressure medium supplying means 90 provided to the excavating means and the bit unit to spray the high-pressure medium onto the excavation site of the underground; And excavation residue treatment means (110) provided between the pipe member and the excavating means while communicating with the bit unit and the bit unit to enable external treatment of the high pressure medium and the excavation residue (T). , The high pressure medium is composed of high pressure water (W) and high pressure air (A), the high pressure medium supply means 90, the main passage 92 provided in the connecting rod connected between the hammer or the hammer and the drive unit, A bit path 94 formed in the center bit 32 provided in the bit unit so as to communicate with the main path 92, and one or more high pressure medium injection holes 96 connected to the bit path and provided in the center bit. Pipe member indentation device comprising a. The method according to claim 1 or 2, The drive unit 10 is provided on a moving frame 16 installed on the base 20 arranged on the ground so as to be movable in the pressing direction, and the hammer 54 and the pipe member 70 of the excavating means are provided. A driving unit 12 connected thereto; And, A support unit 14 provided on the base 20 to support a pipe member disposed on the outer edge of the excavating means; Pipe member indentation device, characterized in that configured to include. The method of claim 2, The bit unit (30), characterized in that the hammer is provided in a multi-assembled assembly type to be hammerable to the front end of the pipe member. The method of claim 3, Hammer (54) of the excavating means is connected to the drive member 12, characterized in that connected to the drive unit 12 via one or more connecting rods 56 sequentially added in accordance with the underground indentation of the pipe member. The method of claim 4, wherein The bit unit 30, the center bit 32 is assembled to be hammerable at the tip of the hammer 54 of the excavating means; A ring bit 34 in which the center bit 32 is hammerably assembled; And, A support ring (36) surrounding the ring bit (34) and to which the pipe member (70) is connected; Consists of a multi-part assembly including a, wherein at least the center bit and the ring bit of the center bit and the drilling bit 38, characterized in that the drilling bit is provided. The center bit assembled to the said hammer 54 and said hammer, and the ring bit assembled to the said center bit, The rail part 42 and 44 which support the hammering of the center bit, and the guide groove part of Claim 6 are provided. (46) (48) is further provided, respectively, characterized in that the pipe member further comprises a reinforcing plate (40) associated with the pipe member (70). The method according to claim 1 or 6, The support ring 36 is assembled with semi-circular support rings 36a and 36b to surround the ring bit, and a protruding portion 35 formed at the rear end of the ring bit 34 is provided at the front end of the support ring. Pipe member press-fitting device characterized in that the latching jaw portion 37 is supported integrally formed. The method of claim 8, The locking jaw portion 37 of the support ring 36 is spaced apart from the protrusion 35 of the ring bit 34 to prevent component damage. delete The method of claim 2, The excavation residue treatment means 110, the recovery passage 112 provided in the center bit 32 included in the bit unit 30; And, An external treatment passage 114 in communication with the recovery passage 112 and extending to the drive unit between the pipe member, the hammer or the hammer and the connecting rod to enable external treatment of the excavation residue; Pipe member indentation device, characterized in that configured to include. The method of claim 11, One or more grooves 116 are provided to the center bit 32 of the bit unit to connect the recovery passage 112 provided in the center bit to the high-pressure medium injection port 96 so as to facilitate the external processing of the excavation residue. Pipe member indentation device, characterized in that.

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