KR20010089228A - Excavating method and excavating apparatus - Google Patents

Abstract

PURPOSE: To provide an excavation construction method for miniaturizing a device and nearly fully preventing excavation force from being transmitted to the device. CONSTITUTION: In the excavation construction method, the excavation device where a crushed body 9 that is connected to a center axis 12 so that it can be rocked is provided at the tip of a rotary shaft 3, and at the same time an axial line direction C of the center axis 12 is away from an axial line direction L of the rotary axis 3 is used, the rotary axis 3 is rotated, and at the same time the center axis 12 is rotated speedily, and the ground is blown by the tip of the crushed body 9.

Description

Excavation Method and Excavator {EXCAVATING METHOD AND EXCAVATING APPARATUS}

The present invention relates to an excavation method and an excavation device which is applied when a space for installing an excavation device or a carrying path of an excavation site is narrow and there is no wall for fixing the excavation device around. More specifically, the present invention relates to an excavation method and an excavation apparatus capable of digging holes for drilling into piles in a vertical shaft tunnel for embedding a relatively small hole, such as a common drainage or sewage mass for home drainage.

As a conventional general excavation method, a method of simultaneously rotating the ground while rotating an auger and simultaneously discharging the ground and discharging the soil is known, or a method of sucking soil filled in the pipe after driving the pipe. Since the device used to rotate the auger must prevent the large force applied when the auger is driven, it is necessary to increase the size of the device itself or to fix it securely to the wall surface near the excavation site, the ground or the ceiling surface. . In addition, the pipe driving method required a large working space in order to raise the falling position of the hammer hitting the pipe.

By the way, the conventional excavation apparatus cannot be used for the reason why the installation place of the apparatus and the carrying-in path to the excavation site are narrow, or when there is no wall to fix the apparatus around, or when it is difficult to obtain reaction force on the ground, In this case, excavation work by manpower is currently common.

The invention described in claims 1 to 12 of the present invention has been made in view of the above circumstances, and its common purpose is to make the device compact, and furthermore, an excavation method in which the drilling force is hardly transmitted to the device. And to provide an excavation device.

In the ground, there is a ground that does not collapse the perforated hole, and is a very hard ground that is self-supporting, and a ground that collapses after digging and requires soil collapse. The ground which requires this soil fall prevention is further divided into a normal ground and a soft ground. As a general ground, it is a ground which is relatively hard, and in which foreign materials, such as gravel and a piece of wood, were mixed. The soft ground is a soft ground that contains a lot of mud, or a well-watered ground.

The inherent object of the invention as set forth in claims 2 and 4 is to provide an excavation method which can improve the efficiency of excavation work performed on ordinary ground.

An inherent object of the invention as set forth in claim 3 is to provide an excavation method which can improve the efficiency of excavation work performed on a very hard ground.

The inherent object of the invention described in claim 5 is to provide a drilling method that can be drilled deep.

An inherent object of the invention as set forth in claim 7 is to provide an excavation apparatus in which the soil is well disposed and the connection of the rotating shaft is easy.

The inherent object of the invention as set forth in claims 8 to 10 is to provide an excavation apparatus which has once improved excavation efficiency.

It is an inherent object of the invention as set forth in claims 11 and 12 to provide an excavation apparatus which has improved soil repellency and improved water retention.

Figure 1 (a) (b) is a front view and a side view showing the main part of the first embodiment of the excavating device of the present invention.

Figure 2 (a) (b) is a front view and a side view showing the main part of the second embodiment of the excavating device of the present invention.

Figure 3 is a side view showing the whole of the first embodiment of the excavation device of the present invention.

4 is a front view showing a state where the movable body is lowered.

5 is a front view showing a state in which the movable body is raised.

6 is a front view showing a state connecting the auger, buried pipe.

7 is a longitudinal sectional view showing main parts of the intermediate body and the buried pipe.

FIG. 8A is a cross-sectional view taken along the line A-A of FIG. 7, and (B) is a cross-sectional view taken along the line B-B of FIG. 7.

Fig. 9 (a), (b) and (d) are explanatory diagrams showing the concept of the axial direction of the central axis away from the axial direction of the rotational axis.

10 (a) (b) are explanatory diagrams showing the concept that the axial direction of the central axis intersects with the axial direction of the rotation axis, and the concept that is located on the same straight line.

11 is an explanatory diagram showing a connection relationship between a pulverized body and a central axis;

Figure 12 (a) (b) is a front view, a side view showing the main part of the third embodiment of the excavating device of the present invention.

Fig. 13 is a front view showing the main parts of a fourth embodiment of an excavation device of the present invention.

Fig. 14 is a front view showing the main parts of a fifth embodiment of the excavating device of the present invention.

Figure 15 (a) (b) is a front view showing the main part of the sixth embodiment of the excavating device of the present invention.

Fig. 16 is a front view showing the main parts of a seventh embodiment of an excavation device of the present invention.

Fig. 17 is a front view showing the main parts of the eighth embodiment of the excavating device of the present invention.

Fig. 18 (A) is an enlarged cross-sectional view showing a structure supporting a buried buried pipe, (B) is a cross-sectional view taken along line A-A in (A).

19 is a plan view of a second catching piece.

* Explanation of symbols for main parts of the drawings

F: Frame 1: Auger

2: moving body 3: rotating body

4: intermediate 5: spiral wing

6: buried pipe 8: grinding motor

9: pulverized body L: axis direction of a rotating shaft

C: Axis of the central axis 10: Chain

11: block P: pin

12: central axis 12 ': flexible shaft

21: connecting shaft 28: topsoil (구 口)

In the excavation method of the invention of claim 1, the pulverized body which is pivotally connected to the central axis is provided at the front of the rotating shaft, and the rotating shaft is rotated by using an excavating device in which the axial direction of the central axis is away from the axial direction of the rotating shaft. It is characterized by hitting the ground in front of the pulverized body by rotating the central axis at high speed.

The pulverized body may have a strength that does not collapse even when striking the ground, and as an abstract example, one having a rigid body, flexibility, and continuous in a chain shape are recommended. Metal bars, wire ropes, chains, chains connected with pins, etc. are detained. Further, the pulverized body is not limited in shape, but is preferably an elongated shape. The number of pulverized bodies is not limited to the number and weight balance.

As a coupling example, although the connection to a pin is rolled up as a concrete representative example, if the grinding | pulverization body has the flexibility like a wire rope, it is the concept including the thing firmly fixed to the central axis as it is. In other words, if it is flexible, it is similar to the swinging movement in the center of the fixed point.

When the axial direction of the central axis is away from the axial direction of the rotational axis, the axial direction of the central axis is parallel, perpendicular or inclined with respect to the axial direction of the rotational axis.

When this method is used when the excavation direction is upward, soils broken into crushed bodies fall naturally. In addition, when this method is used in the transverse direction and the downward direction, the earth and sand broken into pulverized bodies are discharged into a vacuum, a clamshell, a cup, or the like.

This method is applicable to any condition of the ground. In the case of very hard ground, the pulverized body also excavates only by discharging the crushed soil. In addition, in the case of forming a hole in a normal ground or a soft ground, it is necessary to bury a buried pipe before digging while drilling for the purpose of improving the straightness of the excavation work and preventing soil collapse.

Excavation method of the invention of claim 2 is a conventional ground excavation method is a pulverized body that is slidably connected to the central axis is installed in the front of the rotating shaft and using an excavation device in which the axial direction of the central axis is separated from the axial direction of the rotating shaft As the central shaft rotates at a high speed while the buried pipe is disposed outside the rotary shaft, the larger area of the diameter than the buried pipe is pulverized at the front of the pulverized body, and then the buried pipe is discharged. It is characterized in that the buried by moving along the rotation axis. Now, the order of laying of the buried pipe and the discharge of the earth and sand can be performed simultaneously without being limited.

The excavation method of the invention of claim 3 is a very hard excavation method, in which a pulverized body which is swingably connected to the central axis is provided at the front of the rotating shaft, and the axial direction of the central axis falls with respect to the axial direction of the rotating shaft. By using an excavation device having a spiral blade for clay on the outside, it is possible to simultaneously perform ground crushing work at the front of the pulverized body and earth excretion work from the spiral blade by rotating the central axis at high speed. It features.

The excavation method of the invention of claim 4 is a conventional ground excavation method, in which a pulverized body slidably connected to the central axis is provided in front of the rotating shaft, and the axial direction of the central axis is separated from the axial direction of the rotating shaft, In addition, by using an excavation device having a spiral wing for topsoil outside the rotating shaft, and rotating the rotating shaft with the buried pipe disposed outside the spiral blade, an area portion having a larger diameter than the buried pipe is rotated. At the same time, the grinding work at the front of the grinding and the discharge of the earth and sand from the spiral wing are carried out simultaneously, and the operation of embedding the buried pipe is carried out simultaneously with and after the grinding work and the discharge work.

According to the excavation method of the invention of claim 5, the lifting body supports the frame freely, the upper part of the auger rotating shaft is freely supported by the moving body, and the intermediate body having the discharge port is attached to the moving body, and the outer side of the auger's spiral blade is supported. The auger is connected to the intermediate body by attaching the enclosed buried pipe to the intermediate body, and the pulverized body which is slidably connected to the central axis is installed at the lower end of the rotating shaft, and the auger is separated from the axial direction of the rotating shaft in the axial direction of the central axis. Rotate the central axis at high speed while rotating, crushing at the front part of the pulverizing body, discharging at the spiral wing, and discharging the buried pipe, then disconnecting the rotating shaft and buried pipe from the intermediate body and mobile body. Rotary shafts, buried pipes, and mobile bodies, lifting the mobile bodies, and filling other auger rotary shafts and other buried pipes High-speed rotation around the axis and connected to rotate the auger, and wherein the repeating the step of lowering the movable body.

There are various methods for connecting buried pipes or connecting intermediates, but for example, screwing buried pipes together, and connecting and disconnecting between buried pipes and intermediates, inserting the lower end of the intermediate body and the upper end of buried pipe, and leaving them. The first locking piece provided in the intermediate body may enter or exit the locking hole provided in the upper part of the buried pipe. This facilitates the connection between the buried pipes or the connection between the buried pipes and the intermediate body.

In addition, in order to prevent the buried pipes which are buried during the connection work between the buried pipes, the guide is installed at the lower part of the frame at the outer side of the hole of the buried pipe so that the buried pipes do not sink to their own weight. May be inserted into the locking hole and the base of the second locking piece may be held in the guide.

The drilling apparatus of claim 6 is capable of lifting and supporting the movable body freely on the frame, freely supporting the upper portion of the auger's rotating shaft on the movable body, and connecting a buried pipe enclosing the outer side of the auger's spiral wing to the movable body, It is characterized in that the pulverized body slidably connected to the shaft is provided at the lower end of the rotary shaft, and the axial direction of the central shaft is separated from the axial direction of the rotary shaft.

Connecting the buried pipe to the mobile body is a concept including a structure in which the buried pipe and the mobile body are directly connected, and a structure indirectly connecting the buried pipe and the mobile body through an intermediate body having a discharge port.

The structure that directly connects the buried pipe and the moving body is used to form shallow holes. In this case, excavation is carried out without connecting the buried pipes or augers. Since it is on the wings, you can just discharge the soil. On the other hand, the structure in which the buried pipe and the moving body are indirectly connected through an intermediate body having a discharging hole is used to form a deep hole. In this case, the buried pipe is connected to each other or the auger is connected to dig a hole. Discharge the soil to the outlet.

The drilling apparatus of claim 7 is provided with a connecting shaft connected to a rotating shaft attached to a moving body, and a discharging hole is provided in the intermediate body via a tubular intermediate body between the moving body and the buried pipe, and the rotating shaft and the connecting shaft at the discharge port. It is characterized in that the connection is provided.

There are several structures for connecting and disconnecting buried pipes and intermediates. As an example, the first catching piece that can be inserted into the catching hole may be provided in the intermediate body while the catching hole is provided in the upper portion of the buried pipe. In this way, since the intermediate body and the buried pipe can be connected only by inserting the upper end of the buried pipe to the lower end of the intermediate body and inserting the catching body first catching piece, the buried pipe can be easily attached.

In addition, a guide is installed at the lower part of the frame at an outside position of the catching hole of the buried pipe so that it does not sink to the weight of the buried pipe filled during the connection work between the buried pipes. You may install it as possible.

The drilling apparatus of the invention of claim 8 is characterized in that the front portion of the pulverized body is heavier than the base portion.

The drilling apparatus of the invention of claim 9 is characterized in that the pulverized body is a set.

Excavation device of the invention of claim 10 is characterized in that the crushed body is connected to the block with a pin in front of the chain.

The drilling apparatus of claim 11 uses a flexible shaft for the central axis, extends the flexible shaft to the movable body through the rotating shaft, and installs a motor of the flexible shaft on the movable body, and the axial direction of the central axis is relative to the axial direction of the rotating shaft. Instead of being separated, the axial direction of the lower portion of the flexible shaft is characterized in that apart from the axial direction of the rotation axis.

The drilling apparatus according to the twelfth aspect of the present invention is characterized in that the axial direction of the lower portion of the flexible shaft is crossed with respect to the axial direction of the rotating shaft, instead of the axial direction of the lower portion of the flexible shaft being separated from the axial direction of the rotating shaft.

The buried pipe used in the present invention has various structures. As an example, the threaded part may be provided in both ends, and the engaging hole which the 1st locking piece provided in the intermediate body can enter and exit may be provided in one end. In this way, the buried pipe can be easily connected to the intermediate body. In addition, the front part may be inserted into the locking hole via the second locking piece in the guide provided in the lower part of the frame.

Embodiment of the Invention

EMBODIMENT OF THE INVENTION Hereinafter, the drilling apparatus of this invention is demonstrated based on drawing. First, as shown in Figs. 1, 3, and 4, the first embodiment of the excavation device includes a movable body 2 for freely supporting the rotating shaft 3 of the auger 1 with respect to the frame F. The lifting and lowering is installed freely, the intermediate body 4 is suspended from the moving body 2, and the buried pipe 6 surrounding the outer side of the spiral blade 5 of the auger 1 is attached to the lower end of the rotating shaft 3 from the intermediate body 4. The suspension was suspended slightly to the upper side, and the crushing body motor 8 was fixed to the lower end of the rotating shaft 3 to connect a set of crushing bodies 9 to the crushing body motor 8 so as to be able to swing.

The pulverized body 9 strikes the ground by high-speed rotation, and specifically, as shown in FIG. 11, the metal block 11 is connected to the front of the chain 10 by a pin P. As shown in FIG. In addition, the connection between the pulverized body 9 and the pulverized body motor 8 fixes the connector 13 at the front of the central shaft 12 of the pulverized body motor 8, and the pulverized body 9 is connected to the connector 13. One end of the tube was pivotably connected to the pin P. Further, the electric wiring or the hydraulic pipe to the pulverized body motor 8 was drawn toward the movable body 2 through the inside of the rotating shaft 3.

As shown in Figs. 1 and 3, the fixed state of the crushing body motor 8 with respect to the rotating shaft 3 is the axial direction C of the central shaft 12 with respect to the axial direction L of the rotating shaft 3. Is spaced apart (to the left in FIG. 1A) and is also inclined (when shown as FIG. 1B).

As shown in Fig. 3 and Fig. 4, the frame F is provided with a pedestal 14 in which the H-shaped material is woven into a rectangular frame, and the posts 15 are attached to the adjacent shoe seats among the four corners of the pedestal 14. Using the groove-shaped material which guides at the time of elevating the movable body 2 to each support 15, the grooves 16 of each support 15 are opposed to each other, and the outer sides of the supporters 15 and 15 (FIG. 3). A plurality of reinforcing teeth 17 were hypothesized.

The movable body 2 is provided with a gear box 18 at a position corresponding to the frame 14 of the seat 14 when the apparatus is viewed in a plan view, and the rotary shaft motor 19 and the rotary joint 20 are mounted on the gear box 18. The upper part of the connecting shaft 21 which connects the rotating shaft 3 to be rotatably supported as the rotary joint 20, and at the same time, the connecting shaft 21 is suspended downward through the gear box 18, The rotation of the motor 19 for the rotary shaft is dropped from the gearbox 18, and after passing through the connecting shaft 21, is transmitted to the rotary shaft 3.

As shown in FIG. 3, the elevating mechanism of the movable body 2 suspends the chain 22 up and down in the middle between the two pillars 15 and 15 by using the reinforcement bar 17. The elevating motor 23 was fixed to the chain 22, and the sprocket S, which was coaxially rotated with the pulley 24, was engaged with the chain 22 by transmitting the rotation of the elevating motor 23 to the pulley 24. 3 and 4, the storage box 18 has a pair of plates 25 and 25 extending toward the groove 16 of each strut 15 so as to travel the groove 16. As shown in FIG. By attaching the 26 to each plate 25, the movable body 2 moves up and down along the support posts 15 and 15.

The intermediate body 4 is tubular as shown in FIGS. 3 and 5, suspended from the gearbox 18, and the connecting portion 21 between the connecting shaft 21 and the rotating shaft 3 is visible. The topsoil 28 is installed at the height. And the convex part 29 of the rotating shaft 3 is inserted in the concave part 30 of the connection shaft 21, and the both holes H of the concave-convex parts 29 and 30 are aligned, and a discharging hole is made. By inserting the junction (pin or bolt, etc.) 31 at 28, the rotary shaft 3 and the connecting shaft 21 are connected. Moreover, a multicoupler is used for the connection of the electric wiring of the motor 8 for a pulverization body, ie, the connection of the electrical wiring through the inside of the rotating shaft 3, and the electrical wiring through the connecting shaft 21. FIG. In addition, by making the inner diameters of the intermediate body 4 and the buried pipe 6 almost the same, the soil which rises into the buried pipe 6 is smoothly enclosed in the intermediate body 4.

As shown in FIGS. 7 and 8, the connecting structure between the intermediate body 4 and the buried pipe 6 is formed by thinly installing the upper end portion of the buried pipe 6 in a stepped shape, and is provided with a screw part (female thread) 32 in a thin portion. 3, 6), the lower end of the intermediate body 4 is inserted into the threaded portion 32 and placed on the stepped portion, and at the same time, the fasteners 33 are respectively installed at opposing positions of the intermediate body 4, respectively. Thus, the first locking piece 34 of each fastener 33 is inserted into a pair of locking holes 35 drilled in opposing locations on the upper part of the buried pipe 6.

The fastener 33 fixes the reinforcement piece 36 to the intermediate body 4, and simultaneously protrudes the bracket 37 outwards on the upper and lower portions of the reinforcing piece 36, respectively, and drills the two brackets 37 and 37. The locking hole 35 is rotatably attached to the hole 38 by hanging below the threaded portion 32 of the buried pipe 6 through the pin P and fixed to the upper portion of the pin P. The first catching piece 34 inserted into the pin is fixed to the lower end of the pin P, and the first catching piece 34 enters the catching 35 by the rotation of the lever 39. Moreover, the lower part of the pin-shaped latching opening 41 was inserted into the other hole 40 drilled in the upper bracket 37, and the rotation of the lever 39 was prevented as the head of the locking opening 41. As shown in FIG.

In the case of digging a deep hole, as shown in Figs. 5, 6, and 18, the augers 1 and 1 and the buried pipes 6 and 6 need to be connected, but the buried pipe buried during the connection work is required. In order to prevent 6 from sinking or tilting at its own weight, a frame-shaped guide 60 is installed at the outside of each engaging hole 35 of the buried pipe 6 so as not to tilt or tilt. The front part of the guide 60 is inserted into the locking hole 35 via the second locking piece 61, and the base part is held in the guide 60. In addition, as shown in Figs. 18 and 19, the second catching piece 61 is formed so that the front part is made thin so that the front part does not go deeply into the buried pipe 6 in the catching hole 35. Moreover, when the operation part 62 is provided in the base part side, entrance and exit to the locking hole 35 is made easy.

As shown in FIG. 2, the second embodiment of the present invention is vertical in the state in which the axial direction C of the central axis 12 of the frame 9 is separated from the axial direction L of the rotation shaft 3. 2 (b)).

FIG. 9 is a schematic plan view showing four types in which the axial direction C of the central axis 12 is separated from the axial direction L of the rotary shaft 3, and for convenience, the central axis ( 12) is made thicker than it is, and the central axis 12 is extended and displayed. The fact that the axial direction C of the central axis 12 is separated from the axial direction L of the rotational axis 3 means that the central axis 12 is located in the area of the rotational axis 3 as shown in FIG. ) And a part of which the outer peripheral part (lower part in drawing) overlaps with respect to the axial direction L of the rotating shaft 3, and the rotating shaft as shown to FIG. 9 (b). A part of the center axis | shaft 12 overlaps with the area | region of (3), but the center axis | shaft 12 is spaced apart (it is spaced upwards in the figure) with respect to the axial direction L of the rotating shaft 3, As shown in FIG. 9 (c), the center axis 12 is separated from the area of the rotation axis 3, and as shown in FIG. 9 (d), the axial direction L of the rotation axis 3. And the axial direction C of the central axis 12 are the concept including the parallel type. In addition, what is shown to FIG. 9 (a) (b) (c) is that the axial direction L of the rotating shaft 3 and the axial direction C of the center axis | shaft 12 are perpendicular or inclined. In addition, the above-mentioned concept is the case where the axial direction C of the center axis | shaft 12 intersects with respect to the axial direction L of the rotating shaft 3, as shown to FIG. 10 (a), and FIG. As shown in the figure, the case where the axial direction L of the rotary shaft 3 and the axial direction C of the central axis 12 are the same straight line is not included.

In the case of digging a hole having the same diameter, as shown in Fig. 9 (a) (b) (c), the axial direction L of the rotary shaft 3 and the axial direction C of the central shaft 12 are separated from each other. In the vertical or inclined type, as shown in FIG. 10 (a), the pulverized body (C) is compared with the type in which the axial direction C of the central axis 12 intersects with respect to the axial direction L of the rotary shaft 3. As the track 9) is in contact with the soil, and the track (non-load) is not in contact with the soil, the rotational speed of the pulverized body 9 is lengthened, and as a result, the excavation efficiency is improved. do.

In the third embodiment of the present invention, as shown in FIG. 12, the flexible shaft is used for the central axis 12, and the flexible shaft 12 'is connected along the axial direction L in the cylindrical rotating shaft 3. , The lower portion of the flexible shaft 12 'is bent to be rotatably supported as the head 42, and the axial direction C of the lower portion of the flexible shaft 12' is in the axial direction L of the rotation shaft 3. The head 42 is fixed to the outer side (the right side in FIG. 10 (b)) of the connecting pipe 43 which is inclined and separated from the lower end of the rotary shaft 3 in an inclined state. Moreover, the pulverizing body motor 8 which rotates the flexible shaft 12 'is fixed to the moving body 2 (not shown), and the lid tube 44 which holds the flexible shaft 12' is provided in the rotating shaft 3. In addition, the reinforcement pipe 45 is connected to the front part of the lid pipe 44. In addition, in the figure, the spiral blade 5 is removed for convenience.

As shown in Fig. 13, the fourth embodiment of the present invention is characterized in that the axial direction C of the lower portion of the flexible shaft 12 'intersects with respect to the axial direction L of the rotation shaft 3. This is in the form shown in Fig. 10 when viewed in plan. Intersecting here is a concept that combines an orthogonal state and an obliquely intersecting state.

In the case of using the fourth embodiment in the first embodiment, as shown in FIG. 4, the buried pipe (by the high-speed rotation of the falling pulverized body 9 of the rotary moving body 2 of the auger 1) is simultaneously performed. 6) The ground of the area portion having a larger diameter is pulverized as the front part of the pulverized body 9, and then, the soil pipe is pulled up as the spiral wing 5, and the buried pipe 6 is buried. Ejected from the sphere 28 to form a hole. In the case of digging a deep hole, first, the buried pipe 6 is buried as shown in Fig. 5, and the connection shaft 21 and the rotary shaft 3 are disconnected, and the buried pipe 6 and the intermediate body 4 are disconnected. And elevating the movable body 2 and inserting the front part of the guide 60 through the second locking piece 61 into both the locking pipes 35 of the buried pipe 6, respectively. 6) It should be kept in its own weight so that it does not sink naturally. Next, as shown in FIG. 6, the concave portion 30 of the other auger 1 is inserted into the concave portion 29 of the embedded auger 1, and the connection hole 31 is inserted into the hole H to be connected thereto. , Using the space between the other auger 1 and the movable body 20, screwed to the buried tube 6 embedded through the other buried tube 6 on the outside of the other auger 1, and again moving the body 2. Lowers the connection between the connecting shaft 21 and the rotating shaft (3) and the intermediate body (4) and the buried pipe (6), and then pulls out the front part of the second catching piece (61) from each locking hole (35). The high speed rotation of the falling grind | pulverization body 9 of the rotating mobile body 2 of the auger 1 is carried out. In addition, for screwing the buried pipes 6 and 6 together, the screw part 32 of the female screw is provided at the upper end of the buried pipe 6, and the screw part 32 of the male screw is provided at the lower end.

As shown in FIG. 14, the fifth embodiment of the present invention is characterized in that the pulverized body motor 8 is fixed to only the rotating shaft 3, and although not shown in the drawing, the rotating shaft 3 is located behind the rotating shaft. It is provided with a mechanism for supporting the rotation freely, the drive mechanism of the rotary shaft 3, the handle portion, so that the rotation of the rotary shaft 3 is not transmitted to the handle portion. Since there is no means for discharging the earth and sand, it is preferable to use the excavation direction upward so that the earth and sand ground as the ground body 9 fall naturally.

As shown in FIG. 15, the sixth embodiment of the present invention merely protrudes a plurality of guide teeth 46 on the main surface of the rotating shaft 3, and the buried pipe 6 along the guide teeth 46. ) Is the same as in the fifth embodiment except for moving.

The apparatus shown in Fig. 15A is used for ordinary ground, and the area of the ground ground as the ground body 9 is larger than the diameter of the buried pipe 6. In this way, the buried pipe 6 can be buried in the inner part of the area | region which grind | ground the ground as the crushed body 9, and can be buried. In addition, although the embedding means of the embedding pipe 6 is not shown in figure, it may be based on its own weight, and may be press-fit by a jack.

The apparatus shown in Fig. 15B is used for soft ground, and the area of the ground ground as the ground body 9 is smaller than the diameter of the buried pipe 6. In this way, after embedding the embedding pipe 6 and clogging, only the ground inside the embedding pipe 6 can be crushed as the crushed body 9.

As shown in Fig. 16, the seventh embodiment of the present invention is characterized in that the crushed body 9 connects the hammer 48 to the front of the link 47 as the pin P.

In the eighth embodiment of the present invention, the pulverized body 9 is a metal plate, as shown in FIG.

The present invention is not limited to the above embodiment. For example, the engagement hole 35 is not limited to the case where two engagement holes 35 are installed in the opposing position of the buried pipe | tube 6, You may provide three or more. In this case, the fixing | fixed tool 33 is attached to the intermediate body 4, and the guide 60 may be attached to the base 14 of the frame F correspondingly to the location in which the locking hole 35 is installed.

In addition, depending on the state of bearing the pulverized body 9, when the ground hits the ground as the pulverized body 9, the deepest part is located in the axial direction L of the rotary shaft 3, and the eccentric position, that is, the axial direction. There may be a position separated from (L). In the case where it is located in the axial direction L, the bottom surface of the hole formed by this method has a spherical shape in which the ball is divided into half. In the case of the eccentric position, the bottom surface of the hole has a shape in which the center portion protrudes into a cone shape. In the case where the deepest part due to the crushing body 9 is hit in the axial direction L of the rotary shaft 3 under the condition that gravel or wood chips are present in the ground, the pulverizing body 9 is excavated downwardly. As the gravel hit as always returns to the center portion of the spherical surface, the gravel continues to strike as the front part of the crushed body 9. On the other hand, when the deepest part of the ground is eccentric in the eccentric position under the condition that gravel or wood chips exist in the ground, the rotation region of the crushed body 9 is rotated by the rotating shaft 3. Since it moves in the form of revolving with the rotation of, it is possible to strike the gravel only once, thereby preventing the abrasion of the pulverized body 9, and the drilling efficiency is good.

The invention of claim 1 is a method of rotating the rotating shaft while rotating the central axis at high speed, so that the area to be crushed to the front of the pulverized body has a circular shape. A hole in the shape can be formed. The force that strikes the ground is applied to the front part of the pulverized body, but since the pulverized body is pivotably connected to the central axis, the impact force is not transmitted to the central axis and the rotating shaft. The load is not applied, and the device itself can be miniaturized.

Ordinary ground is relatively hard, and it is difficult to bury the buried pipe. In this case, however, using the invention of claim 2, since the buried pipe is buried in the inner part of the crushed area, the buried work takes little effort. It can be done easily and quickly so that the time required for the excavation work can be shortened as a result.

By using the invention of claim 3 on a very hard ground, the time required for the excavation work can be shortened by simultaneously performing the crushing work as the pulverized body and the discharge work of the earth and sand as the spiral wing. In addition, in the conventional auger, both the force of digging the ground and the force of discharging the earth and sand are applied to the spiral wing, but the force of discharging the soil is only applied to the spiral wing of the present invention, so that the rotational force of the rotating shaft may be small, and the device itself is removed. It can be miniaturized.

When the invention of claim 4 is used in ordinary ground, the time for starting the buried pipes can be shortened as a result of the crushing work as a pulverized body and the discharge work of the earth and sand from the spiral wing at the same time, and as a result, the time of excavation work Can shorten.

Using the invention of claim 5, a deep hole can be sold.

In the conventional auger, both the force of crushing the ground on the spiral wing and the force of carrying the crushed soil to the rear are required. However, the invention of claim 6 carries the crushed soil to the rear as a spiral wing by hitting the ground as a pulverized body. Therefore, the role of the spiral blade becomes one, and as a result, the rotational force of the spiral blade may be small, and the load by excavation is not applied to the motor for rotating the pulverized body and the motor of the rotating shaft, so that the device itself can be miniaturized.

In the invention of claim 7, since the intermediate body interposed between the moving body and the buried pipe is tubular, the soil raised in the buried pipe is inserted into the intermediate as it is and discharged from the discharge port, thereby improving the boating efficiency. In addition, since the connecting shaft and the rotating shaft can be connected at the discharge port, the attachment work of the rotating shaft becomes easy.

According to the invention of claim 8, the front part of the pulverized body is made heavier than the base part, so that the crushing force is increased to improve the drilling efficiency.

According to the invention of claim 9, the front of the heavy pulverized body as a single line is generated by the vibration caused by the excavated soil appears to rise naturally, as a result improves the fold efficiency.

In the invention of claim 10, since the crushed body connects the blocks to the front of the chain with a pin, the blocks worn by the hitting can be easily replaced.

According to the invention of claim 11, 12, by using the flexible shaft in the central axis, the lower portion of the flexible shaft can be bent vertically, inclined or intersecting in a state in which the axial direction of the flexible shaft is separated from the axial direction of the rotation axis, In addition, since the flexible shaft was extended to the movable body and the motor was installed on the movable body, the size of the projecting portion provided at the lower end of the rotating shaft can be reduced as compared with the structure in which the motor is installed at the lower end of the rotating shaft, resulting in improved soil efficiency. You can. Moreover, frequency is also easy if a motor is provided in a movable body.

Claims (12)

While the pulverized body 9 which is pivotally connected to the central shaft 12 is provided in front of the rotating shaft 3, the axial direction C of the central shaft 12 is the axial direction L of the rotating shaft 3. Excavation method characterized in that the use of the excavation device away from the, rotating the rotating shaft (3) at high speed to strike the ground from the front of the crushing body (9). As a conventional ground excavation method, the pulverized body 9 which is pivotally connected to the central shaft 12 is provided at the distal end of the rotary shaft 3, and the axial direction C of the central shaft 12 is the rotary shaft ( The central shaft 12 is rotated at high speed while the rotary shaft 3 is rotated while the buried pipe 6 is disposed outside the rotary shaft 3 by using an excavation device separated from the axial direction L of 3). By crushing, the area portion of a larger diameter than the buried pipe 6 is crushed to the front of the pulverized body 9, after which the pulverized soil is discharged, and the buried pipe 6 is moved along the rotating shaft 3. Drilling method characterized in that the buried. As a very warning ground excavation method, the pulverized body 9 which is slidably connected to the central axis 12 is provided in front of the rotating shaft 3, and the axial direction C of the central axis 12 is rotated. The central shaft 12 is rotated while rotating the rotary shaft 3 by using an excavation device which falls apart with respect to the axial direction L of (3) and is provided with a spiral blade 5 for discharging on the outer side of the rotary shaft 3. A method of excavating, characterized in that the grinding of the ground at the front of the pulverized body (9) and the earth and sand discharged from the spiral blade (5) are carried out at the same time by rotating the high speed. As a conventional ground excavation method, the pulverized body 9 which is pivotally connected to the central shaft 12 is provided at the front of the rotating shaft 3, and the axial direction C of the central shaft 12 is the rotating shaft ( 3) A buried pipe 6 is provided on the outside of the spiral wing 5, using an excavation device which falls apart with respect to the axial direction L of 3) and has a spiral wing 5 for discharging on the outside of the rotating shaft 3. In the state in which the rotary shaft 3 is rotated, while the central shaft 12 is rotated at a high speed, the crushing work and the spiral blades at the front of the pulverized body 9 in the area portion having a larger diameter than the buried pipe 6 The excavation method characterized in that the work of discharging the soil in 5) is carried out together, and the buried pipe 6 is moved along the rotary shaft 3 to bury it. The intermediate body 4 which has the movable body 2 freely in the frame F, the upper part of the rotating shaft 3 of the auger 1 freely rotates in the movable body 2, and has the discharge | emission hole 28 at the same time. Suspended from the moving body 2, the buried pipe 6 enclosing the outer side of the spiral wing 5 of the auger 1 to the intermediate body 4, and the pulverized body that is swingably connected to the central axis 12 ( 9) is installed at the lower end of the rotary shaft 3, and the auger 1 is used by using an excavation device in which the axial direction C of the central shaft 12 is separated from the axial direction L of the rotary shaft 3, While rotating the central shaft 12 at high speed while lowering the moving body 2, the grinding work at the tip of the pulverized body 9 and the discharge work of the earth and sand from the spiral wing 5 and the buried pipe 6 ), The rotary shaft 3 and the buried pipe 6 are disconnected from the movable body 2 and the intermediate body 4, and the movable body 2 is raised to raise the rotary shaft of the other auger 1 3) And a rotary shaft 3 in which the other buried pipe 6 is embedded, the buried pipe 6, and the movable body 2, and while rotating the auger 1, rotate the central shaft 12 at high speed, and move the movable body 2. Excavation method, characterized in that to repeat the step of lowering. Lifting and holding of the movable body 2 freely on the frame F, the upper part of the rotating shaft 3 of the auger 1 is freely maintained on the movable body 2, and the spiral wing 5 of the auger 1 The buried pipe 6 enclosing the outside is connected to the movable body 2, and the pulverized body 9, which is pivotally connected to the central axis 12, is installed at the lower end of the rotary shaft 3, and the central axis 12 Excavation apparatus characterized in that the axial direction (C) of) is away from the axial direction (L) of the rotary shaft (3). The connecting shaft 21 connected to the rotating shaft 3 is suspended from the moving body 2, and the tubular intermediate body 4 is interposed between the moving body 2 and the buried pipe 6. And a discharging spout (28) on the intermediate body (4), and the rotary shaft (3) and the connecting shaft (21) are connected to the discharging spout (28). The excavating device according to claim 6 or 7, wherein the front part of the crushed body (9) is made heavier than the foundation part side. The excavating apparatus according to claim 8, wherein the main body (9) is formed in a pair. The excavation device according to claim 9, wherein the crushed body (9) connects the block (11) to the tip of the chain (10) with a pin (P). The flexible shaft 12 'according to any one of claims 6 to 10, wherein the flexible shaft 12' is extended to the movable body 2 through the rotating shaft 3, and the motor of the flexible shaft ( 8) is attached to the movable body 2, and the axial direction C of the central axis 12 is not separated from the axial direction L of the rotational axis 3, but instead of the axial direction L of the rotary shaft 3 in the axial direction of the lower part of the flexible shaft 12 '. Excavation apparatus characterized in that (C) is separated with respect to the axial direction (L) of the rotating shaft (3). 12. The axial direction C of the lower part of the flexible shaft 12 'instead of the axial direction C of the lower part of the flexible shaft 12' being separated from the axial direction L of the rotary shaft 3. ) Is an excavating device characterized in that it intersects with respect to the axial direction (L) of the rotating shaft (3).