JP3380737B2 - Drilling propulsion machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an excavator for excavating a manhole in which a propulsion unit is launched from a starting shaft to construct an underdrain in the propulsion method. This is an effective technique in some cases.

[0002]

2. Description of the Related Art In a conventional excavator for excavation, a pedestal and a support arm are joined to the inner surface of a skin plate of a steel pipe, and the propulsion device main body is attached to the pedestal and the support arm by bolts or welding. The partition board was attached, and the partition board and the skin plate were joined by welding. From the partition board, the drive shaft of the propulsion unit main body was projected forward, and the drive shaft was equipped with a cutter arm having an excavating blade. In order to excavate toward a human hole with a conventional excavation propulsion machine, first, a starting shaft is constructed, and the excavation propulsion machine is installed inside the mine with a crane or the like. Next, the cutter arm is rotated, and the jack installed on the rear side of the excavator propulsion machine pushes the propulsion pipe mounted on the rear side of the excavation propulsion machine to excavate. When the excavator excavates toward the human hole and advances, a new propulsion pipe is attached behind the rearmost propulsion pipe and pushed by the jack. A culvert is built by repeating this. In order to reach the vicinity of the human hole and recover the propulsion machine for excavation, in the case where the propulsion machine for excavation is not divided, a very large reaching pit according to the size of the propulsion machine for excavation is built near the human hole, Even when the excavating propulsion unit is divided by fusing, it is necessary to construct a reaching shaft corresponding to the 2 to 4 divisions of the excavating propulsion unit near the manhole. Further, in both cases, the arrival resistance for recovery of the excavator was larger than that of the manhole. Instead, when the excavation propulsion machine is discharged from a human hole, the skin plate is left in the ground, and the body of the excavation propulsion machine is disassembled and removed from the skin plate by fusing or removing bolts. However, since the support arm and the pedestal for fixing the body of the excavator propulsion unit to the skin plate are welded to the inner surface of the skin plate of the steel pipe, after disassembling and removing the body of the excavation propulsion unit from the skin plate, , Remains on the inner surface of the skin plate. When the support arm, pedestal, etc. are left in the skin plate, the inner surface of the skin plate has irregularities, and the inner diameter of the following propulsion pipe and skin plate is usually larger in the skin plate. There is a step at the connection part of. If the skin plate is used as it is as a flow path, there are irregularities, foreign matter is likely to adhere, and the step causes stagnation of the flow, both of which cause pipe clogging.
Therefore, in order to use the skin plate as a propulsion pipe, the large convex support arm and pedestal remaining on the inner surface of the skin plate are removed by fusing so that they do not project inward from the inner diameter of the propulsion pipe, and then concrete is poured into the skin. The post-work was done by making the inner diameter of the plate the same as the inner diameter of the propulsion tube and making the surface of the inner diameter of the skin plate smooth like the propulsion tube to improve the flow. Therefore, the conventional excavator for excavation has the following problems. When recovering a propulsion machine for excavation, it is necessary to construct a reaching pit that is larger than the manhole for the purpose of recovery, which causes a problem that the construction period and cost are high. When recovering a propulsion unit for excavation from a ship, the recovered propulsion unit itself is not normally reused, and the supporting arms and pedestals remaining in the skin plate are melt-cut so that they do not go out inside the inner diameter of the propulsion pipe. , The inner diameter of the skin plate should be the same as the inner diameter of the propulsion pipe, and the surface of the inner diameter of the skin plate should be as smooth as the inner diameter of the propulsion pipe to eliminate steps and irregularities in the pipe.
There was a problem that a lot of time was spent in post-work to improve the flow and skilled skills were required.

[0003]

The problem to be solved by the present invention is to solve the problems of the prior art and to provide a main body of an excavator for excavation from a human hole without constructing a reaching stand for collecting the propulsion unit for excavation. Since it can be recovered, the recovered excavator main body can be reused, the cost and construction period can be significantly reduced without the need to construct a recovery pit, and the skin plate can be used as it is as a propulsion pipe. The purpose of the present invention is to provide a propulsion machine for excavation that requires almost no post-work such as pouring concrete and further reduces the cost and construction period.

The structure of the present invention which has solved the above problems is as follows: 1) The propulsion unit main body is installed in a tubular skin plate,
A cutter arm with an excavation blade attached to the tip of the bulkhead of the propulsion unit in front of the bulkhead is installed so as to rotate, and mud is sent near the face of the blade in front of the bulkhead to stably excavate the ground with the drilling blade. In the excavator for excavation, the skin plate was manufactured with the same inner diameter and the same material as the propulsion pipe added to the rear of the skin plate, and the main body of the propulsion device was detachably attached to the skin plate, and at least the cutter arm and partition wall were removed. The main body of the propulsion unit is assembled so that it can be disassembled into parts that are large enough for human holes to pass through .
Removably attach multiple rings to the inner surface
Removably attach the propulsion unit body to the
Assembled into several pieces that can pass through the holes
Were it to device main propulsion unit on drilling propulsion unit 2) cylindrical skin plate, wherein,
Attach a drilling blade to the tip of the thruster body in front of the partition wall.
The beam cutter arm is installed so that it can be rotated
Muddy water is sent near the front face to stabilize the ground with an excavating blade
In excavator for excavation
Same inner diameter as the propulsion tube added to the rear of the skin plate
Manufactured with the same material, the main body of the propulsion machine is attached to the skin plate.
Removably attached, at least with the cutter arm
The propulsion unit body, excluding the partition wall, is large enough to pass through human holes.
It is assembled so that it can be disassembled into
Front and rear ends of the front skin plate using two
And 3 rings at the front edge of the rear skin plate.
Removably attached to the kin plate and the partition wall in front
Removable ring attached to one skin plate
The main body of the propulsion device for discharging the excavated mud
The discharge pipe of can be detached from the support arm fixed to the ring
Attached to the skin plate to connect the skin plates together.
Ki front and rear skin plate back and back skin play
Take it so that it straddles the two rings attached to the front end of the
Removably attached, the ring can pass through the human hole
A propulsion unit for excavation characterized by being disassembled into two semicircular size bodies 3) The propulsion unit body is installed in a tubular skin plate,
Attach a drilling blade to the tip of the thruster body in front of the partition wall.
Provided only cutter arm to pivot, from the partition wall plate
Muddy water is sent near the front face to stabilize the ground with an excavating blade
In excavator for excavation
Same inner diameter as the propulsion tube added to the rear of the skin plate
Manufactured with the same material, the main body of the propulsion machine is attached to the skin plate.
Removably attached, at least with the cutter arm
The propulsion unit body, excluding the partition wall, is large enough to pass through human holes.
It is assembled so that it can be disassembled into parts of the skin plate
Attach multiple rings to the inner surface of the
Removably attach the propulsion unit body to the ring, and the ring
Assembled into several sizes that can pass through human holes
And using two tubular skin plates, the front skin
Front and rear edges of plate and front edge of rear skin plate
Rings can be freely removed from the skin plate at 3 points
Attached the partition board to the front skin plate
Removably attached to the ring to discharge excavated mud
Support that secures the exhaust pipe of the propulsion unit to the ring.
Removably attached to the arm, skin plates to each other
Connect the connection jack to the rear end of the front skin plate.
And two phosphorus attached to the front edge of the rear skin plate
Removably attached to straddle the ring
Can be disassembled into two semicircular bodies that are large enough to pass through human holes
The excavator for excavation, characterized in that the skin plate is a fume tube.
3) The propulsion device for excavation according to any one of the above.

[0005]

In the excavating propulsion apparatus of the present invention, after the tip portion thereof reaches the inside of the human hole, the cutter arm and the partition board are disassembled and removed, and then the excavating propulsion apparatus main body is removed from the skin plate. Next, the excavator main body is disassembled into units of components that are large enough to pass through the human hole, and is recovered from the human hole. There are almost no accessories on the inner surface of the remaining skin plate, and it is as smooth as the inner diameter of the propulsion pipe, and because it has the same diameter and the same material, the skin plate can be used as it is as a propulsion pipe with almost no post-work. For the disassembled and recovered excavator body, reassemble the propulsion machine body part except at least the cutter arm and bulkhead board, and attach it to a new skin plate for reuse. Further, in the present invention, after the excavation propulsion machine reaches the inside of the human hole, the cutter arm and the partition board are disassembled and removed, and then the excavation propulsion machine main body is removed from the plurality of rings. Next, the excavator main body is disassembled into units of components that are large enough to pass through the human hole, and is recovered from the human hole. Next, the plurality of rings are removed from the skin plate, disassembled into several pieces of a size that passes through the human hole, and collected from the human hole. In this way, the attachment of the propulsion device body to the skin plate is facilitated by interposing several rings.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION An embedded nut, a bolt, a screw, and a fixing pin are examples of a ring that is removably attached to a propulsion unit main body and a ring that is detachably attached to a skin plate. The ring can be attached to the propulsion unit body and the skin plate at two positions . The propulsion pipe and the skin plate may be either an iron pipe or a fume pipe. It is desirable that the cutter arm and bulkhead board be composed of two or more bodies that are large enough to be collected from a human hole and that they be detachable with bolts.

[0007]

Embodiments of the present invention will be specifically described with reference to the drawings (see FIGS. 1 to 12). In the embodiment shown in FIGS. 1 to 12, a skin plate made of the same fume pipe as the propulsion pipe is assembled with bolts so that the three rings can be removed, and the excavator main body can be detached from the three rings. It is assembled with bolts, and the ring is constructed by assembling two semicircular bodies that can pass through the human hole with bolts, and the excavator main body except the cutter arm and the partition board is constructed with the human hole. This is an example of an excavation propulsion unit assembled with bolts so that it can be disassembled into units that can pass through. FIG. 1 is a plan view showing an embodiment, FIG. 2 is an explanatory view showing a mounting position of a bolt of the embodiment, and FIG. 3 is a assembly of a skin plate, a partition board, a ring, and a gearbox of the embodiment by bolts. FIG. 4 is an explanatory view showing an attached state, FIG. 4 is an explanatory view showing an assembled state by bolts of a skin plate, a ring, and a connection jack of the embodiment, and FIG. 5 is a cross section taken along line AA of FIG. 1 of the embodiment. 6 is a sectional view taken along line BB of FIG. 1 of the embodiment, FIG. 7 is a sectional view taken along line CC of the embodiment of FIG. 1, and FIG. 8 is a skin plate of the embodiment. FIG. 10 is an explanatory view showing a state in which the ring, the connecting jack are assembled with bolts, FIG. 9 is an explanatory view showing a state in which the excavation propulsion machine of the embodiment has reached an existing human hole, and FIG. Explaining the state in which the excavation propulsion machine of the projecting projecting into the existing human hole FIG. 11 is an explanatory view showing a state in which the excavation propulsion machine of the embodiment is disassembled and collected, and FIG. 12 is an explanation showing a state in which the collection and propulsion process of the excavation propulsion machine of the embodiment are completed. It is a figure and Drawing 13 is an example of other rings. In the figure, 1a and 1b are a skin plate which is an outer peripheral wall of the propulsion machine, 2 is a partition board through which the propulsion machine main body and a ring are installed, and 3 is a propulsion machine main body with the partition board attached to the skin plate. Rings, 4 and 5 are rings that support the discharge pipe at two points and are fixed to the skin plate, 6 is a cutter arm, 7 is a drive shaft that rotates the cutter arm, and 8
Is a gear box for transmitting the rotational force of the speed reducer 9 to the drive shaft 6, 9 is a speed reducer attached to the output shaft of the electric motor 10,
Is an electric motor for rotating the cutter arm, 11 is a swivel, 12a and 12b are connection jacks, 13a and 13
b, 13c, 14a and 14b are discharge pipes, 15 is an arm for mounting the discharge pipe on the skin plate via a ring, and 16 is a fixing plate for fixing the skin plate to a human hole. Reference numeral 17 is a cutting position of the cutter arm. 1
8 is a gold basket. 19 is a propulsion tube. 20a, 20
b, 21a to 21l, 22a to 22x, 23a to 23
h, 24a, 24b, 25a, 25b, 26a, 26
b, 27a, 27b, 28a to 28c, 29a to 29
c, 30a, 30b, 31a, 31b, 32a to 32
h, 33a, 33b, 34a, 34b, 35a, 35
b, 36a, 36b are bolts for the device. 40 is an ejector. The discharge pipes 13a, 13b and 13c are made of steel, and the discharge pipes 14a and 14b are made of rubber. Reference numeral 41 is a human hole. Reference numeral 42 is an excavating blade attached to the cutter arm. Example (see FIGS. 1 to 12) The usage and operation of the excavator for propulsion of the present example will be described. First, a starting shaft is constructed and an excavator for excavation is installed at the starting point. Then, the electric motor 10 is driven. The driving force of the electric motor 10 is transmitted to the drive shaft 7 via the speed reducer 9 and the gear box 8, and the excavating blade 4 attached to the drive shaft 7
2 excavates by rotating the attached cutter arm 6. Also, the plasticizer is pressure-fed by the pressure-fed pump and is ejected to the vicinity of the cutter arm through the swivel 11 to act as a sliding member on the outer periphery of the device, and the propulsion force of the excavator for propulsion can be extremely low. It also makes it easy to make a turn. Attach the propulsion pipes to the rear of the excavated propulsion machine one after another and push it forward with a jack. The skin plate, the propulsion tube, and each joint are sealed with packing. In addition, the excavated mud is discharged from the discharge pipes 13a, 14a,
It is discharged by the discharging device 40 through 13b, 14b, 13c and through the gold basket 18. As shown in FIG. 9, if the excavation propulsion machine of this embodiment reaches the existing manhole which is the completion point of the propulsion process, as shown in FIG. 10, before and after reaching the existing manhole of the propulsion machine. Make a hole for the propulsion of the propulsion machine in either of them, and project the propulsion machine, skin plate 1
A and 1b are fixed to the existing human hole by the fixing plate 16. Next, the bolts shown in FIGS. 1 and 2 are removed and the propulsion unit is disassembled. Since the cutter arm 6 is not assembled by tightening bolts, the cutter arm 6 is fused at the cutter arm cutting point 17. By removing the bolts 20a, 20b and the bolts arranged on the same circumference, the remaining portion of the cutter arm attached to the propulsion unit main body is removed from the drive shaft even after melting. Next, as shown in FIGS. 5 and 6, bolts 22a to 22x and 2
The partition wall 2 is removed from the gear box 8 and the ring 3 of the propulsion device main body by removing 1a to 21l. Next, the partition board 2 is melt-cut so that it can be collected from the human hole.
The partition board 2 includes bolts 22a to 22x and 21a to 21l.
It may be blown out without removing it. Next, FIGS.
The ring 3 is removed from the skin plate 1a by removing the bolts 23a to 23h as shown in FIG. Similar to the rings 4a and 4b shown in FIG. 7, the bolts are removed to remove the rings 3a and 3b so as to form two bodies. Next, the swivel 11 is removed from the gear box 8 by removing the bolts 24a and 24b and the bolts arranged on the same circumference. Next, the bolts 25a and 25b and the bolts arranged on the same circumference are removed, and the speed reducer 9 and the electric motor 10 are removed from the gear box 8. However, reduction gear 9 and electric motor 1
Regarding 0, it is not removed because it is a size that can be collected from the human hole. Next, the bolts 26a, 26b and the bolts arranged on the same circumference are removed, and the discharge pipe 13a and the discharge pipe 14 are removed.
Remove a. Alternatively, the bolts 27a, 27b and the bolts arranged on the same circumference are removed, and the discharge pipe 13a is removed.
The discharge pipe 14a may be integrally removed from the discharge pipe 13b. The bolts 30a and 30b and the bolts arranged on the same circumference are removed, and the discharge pipe 14b and the discharge pipe 13b are removed. Alternatively, the bolts 31a, 31b and the bolts arranged on the same circumference are removed, and the discharge pipe 13b and the discharge pipe 14b are removed.
May be integrally removed from the discharge pipe 13c. Next, the gold basket 18 is removed from the discharge pipe 13c. Next, in Figure 4,
As shown in FIG. 8, the bolts 28a to 28h and 29a to 29 are
h, 32a to 32h, 33a to 33h are removed, and the connection jacks 12a, 12b, 12c and 12d are removed from the skin plates 1a and 1b. Next, as shown in FIG.
The bolts 35a and 35b are removed, the two rings 4a and 4b, which are two bodies so that they can be recovered from the human hole, are removed, and then removed from the skin plate 1a. Rings 5a, 5
Also remove b. The above disassembly procedure may be mixed up. After the above disassembly, each part is recovered from the human hole as shown in FIG. Also, the disassembled parts may be sequentially collected. After that, the fixed plate 16 is collected, and the space between the skin plate 1a and the human hole is filled with concrete. As shown in FIG. 12, there is no accessory inside the skin plates 1a and 1b, and the inside of the propulsion pipe is shown. Same as the above, the inner diameter is the same as the inner diameter of the propulsion tube, and since it is the same material as the propulsion tube, the skin plate is used as the propulsion tube without post-work. If necessary, remove the screw holes in the skin plate or the screw holes in the embedded nut for the bolts that attach the skin plate and ring.
It is easy and easy to do, although it will be done after filling it with a toe. Each component of the excavator, which has been disassembled and collected from the human hole, is reused by being reassembled with a new cutter arm and a new partition board on a new skin plate. As described above, according to the present embodiment, the propulsion device can be recovered from the existing manhole without constructing the arrival pit for recovering the propulsion device, most of the parts can be reused, and the skin can be removed without post-work. The plate can be used as a propulsion tube.

[0008]

According to the excavator for excavation of the present invention, the inner portion of the inner diameter of the propulsion pipe in the support arm and the pedestal remaining in the inner diameter of the skin plate is melt-cut, and the inner diameter of the skin plate is the same as the inner diameter of the propulsion pipe. Since the post-work of pouring concrete to have the same surface smoothness is eliminated, the construction cost and construction period can be reduced, and there is no need to build a standing shaft to recover the equipment, and the propulsion unit main body can be Construction cost and construction period can be reduced because it can be collected and reused. Also, when building a reachable pit for equipment collection, the size of a human hole is small and the selection range of construction positions is widened. At the same time, it is possible to provide a propulsion machine for excavation that can significantly reduce the construction period. Also, since a ring is used to attach the propulsion unit body to the skin plate, the number of rings needed to be fixed because it is fixed to the skin plate at the cylindrical surface can be reduced, and the ring can be disassembled and recovered from the human hole. Since it is reused, the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment.

FIG. 2 is an explanatory view showing a bolt assembly portion of the embodiment.

FIG. 3 is an explanatory view showing an assembled state of a skin plate, a partition board, a ring, and a gear box with bolts of the embodiment.

FIG. 4 is an explanatory diagram showing a state where the skin plate, the ring, and the connection jack of the embodiment are assembled with bolts.

5 is a cross-sectional view taken along the line AA of FIG. 1 of the embodiment.

6 is a sectional view taken along line BB in FIG. 1 of the embodiment.

FIG. 7 is a sectional view taken along line CC of FIG. 1 according to the embodiment.

FIG. 8 is an explanatory view showing a state where the skin plate, the ring, and the connection jack of the embodiment are assembled with bolts.

FIG. 9 is an explanatory diagram showing a state in which the excavation propulsion device of the embodiment has reached an existing human hole.

FIG. 10 is an explanatory diagram showing a state in which the excavating propulsion device of the embodiment projects into an existing human hole.

FIG. 11 is an explanatory diagram showing a state in which the excavation propulsion device of the embodiment is disassembled and collected.

FIG. 12 is an explanatory diagram showing a state in which the recovery and propulsion steps of the excavation propulsion device of the embodiment have been completed.

FIG. 13 is an explanatory diagram showing an example of another ring.

[Explanation of symbols]

1a skin plate 1b skin plate 2 partition boards 3 rings 3a ring half 3b ring half 4 rings 4a ring half 4b ring half 5 rings 5a ring half 5b ring half 6 cutter arm 12a connection jack 12b connection jack 12c connection jack 12d connection jack 13a, 13b, 13c, 14a, 14b Discharge pipe 19 Propulsion tube 41 foramen 42 drilling blade

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E21D 9/06 311 E21D 9/08

Claims (4)

(57) [Claims] 1. A propulsion device main body is installed in a tubular skin plate, and a cutter arm having an excavating blade attached to a tip end portion of the propulsion device main body in front of a partition wall is provided so as to rotate, and the front of the partition wall is provided. In a propulsion machine for excavating rocks by sending muddy water near the face and stably excavating the ground with an excavating blade, the skin plate is made of the same inner diameter and the same material as the propulsion pipe that is added to the rear of the skin plate. mounted for remove the body skin plate, the main propulsion unit, excluding the least cutter arm and the partition plate, assembled to be decomposed into magnitude component of the manhole can pass, Sukinpu
Removably attach multiple rings to the inner surface of the rate
KE, detachably attach the propulsion unit to the ring,
Rings can be disassembled into several sizes that can pass through human holes
A propulsion machine for excavation characterized by being set up . 2. A propulsion device main body in a tubular skin plate.
Device and excavating blade at the tip in front of the partition wall of the propulsion unit.
Install the cutter arm with the attached
Drill mud by sending muddy water near the face in front of the wall
In excavator propulsion machines that excavate stably with blades,
With a propulsion tube that is added to the rate behind the skin plate
Made of the same inner diameter and made of the same material, the skin of the propulsion unit
Removably attached to the mount, at least the cutter
Except for the arm and bulkhead, the main body of the propulsion machine can pass through human holes.
It is assembled so that it can be disassembled into parts
Using two Kinplates, in front of the front skinplate
Reattached to 3 places, the edge / rear edge and the front edge of the rear skin plate.
Detachably attach the ring to the skin plate and
Attach the wallboard to the ring attached to the front skin plate.
It is detachably attached and is designed to discharge excavated mud.
Mount the discharge pipe of the machine body to the support arm that is fixed to the ring.
Removably attached to connect the skin plates together
Attach the tying jack to the rear edge of the front skin plate and
Straddle the two rings attached to the front end of the
Removably attached to the ring,
Assembled into two semi-circular pieces that are large enough to be disassembled
Drilling propulsion unit, characterized in that that. 3. A propulsion device main body in a tubular skin plate.
Device and excavating blade at the tip in front of the partition wall of the propulsion unit.
Arranged to rotate the cutter arm attached to, septum
Drill mud by sending muddy water near the face in front of the wall
In excavator propulsion machines that excavate stably with blades,
With a propulsion tube that is added to the rate behind the skin plate
Made of the same inner diameter and made of the same material, the skin of the propulsion unit
Removably attached to the mount, at least the cutter
Except for the arm and bulkhead, the main body of the propulsion machine can pass through human holes.
Assembled so that it can be disassembled into parts
Removably attach multiple rings to the inner surface of the plate
KE, detachably attach the propulsion unit to the ring,
Rings can be disassembled into several sizes that can pass through human holes
Standing up, using two tubular skin plates, front
Skin play on the front and rear edges and rear of the skin plate
Remove the rings from the skin plate at three points on the front end of the
Mount it freely and attach the partition wall to the front skin plate.
Removably attached to the attached ring and excavated mud
The discharge pipe of the propulsion unit for discharging the soil is fixed to the ring.
Detachably attached to the support arm
Front skin play with a connecting jack that connects the two
2 attached to the rear edge of the toe and the front edge of the rear skin plate
Removably mounted across two rings, front
The ring is made into two semicircular bodies that are large enough to pass through the human hole.
A propulsion machine for excavation characterized by being disassembled freely . 4. The excavator for excavation according to claim 1 , wherein the skin plate is a fume tube .