JP3836686B2 - Propulsion drilling equipment capable of split collection - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a propulsion excavator capable of split collection in which an underground pipe is constructed by excavating underground with a rotating excavating blade at a front end, and connecting a propulsion pipe to a rear end and pushing it into the ground. .
[0002]
[Prior art]
Conventionally, post-processing after constructing an underground pipe by a propulsion excavator and reaching a destination point includes the following. First, when the arrival point is a large shaft, the propulsion excavator can be lifted and collected. Next, since the opening is small when the arrival point is a human hole or an existing pipe, the outer shell pipe of the propulsion excavator is left as an underground pipe, and the removable part of the propulsion excavator is removed and removed. A cutter arm, a partition plate, or the like to which a drilling blade that cannot be taken out to the outside through a human hole or an existing pipe / propulsion pipe is melted and cut into small parts so as to pass through the human hole or the like is removed. Further, those which are installed inside the outer shell tube and are difficult to remove are melted and removed so as not to protrude inward beyond a predetermined height. After that, concrete is placed inside the outer shell pipe and used as an underground pipe.
Also, if the outer shell tube of the propulsion excavator is removed in a narrow place where the arrival point is a human hole or an existing tube, the propelling tube is propelled so that the outer tube protrudes into the human hole or the existing tube. However, the protruding portion of the outer shell pipe to the human hole or the existing pipe is melted and removed. At this time, the propelling pipe propelled to the position of the outer shell pipe is made to come.
As described above, when the arrival point is a narrow place such as a human hole, the construction cost is very high because the apparatus or the like must be removed by fusing. Also, the removal work by fusing takes a lot of time and effort.
On the other hand, there is a type in which the main body of the propulsion unit excluding the cutter arm and the bulkhead is disassembled into a size that allows a human hole or the like to pass, and the outer shell pipe is left as an underground pipe.
However, even in this case, the cutter arm and the bulkhead must be removed by fusing, which is costly and troublesome, and the outer shell tube, cutter arm, and bulkhead must be prepared for reuse. It was costly.
In recent years, it is difficult to set up a large shaft at the destination point due to the shortening of the construction period and consideration of the living environment and traffic environment in the vicinity, and this situation is thought to become more serious. The removal work was an important issue.
[0003]
[Problems to be solved by the invention]
The problem to be solved by the present invention is to solve these conventional problems and to recover the propulsion excavator from a human hole or the like without constructing a recovery shaft. It is an object of the present invention to provide a propulsion excavator that can be divided, can be used, can be greatly reduced in cost and work period, and can be easily collected.
[0004]
[Means for Solving the Problems]
The configuration of the present invention that solves this problem is as follows.
1) A cylindrical hood is provided in front of a cylindrical outer shell tube, a rotary excavation part having an excavation blade is arranged in front of the hood, and the hood is configured to be disassembled by connecting a plurality of hood plates. The rotary excavation part is also detachably attached , and the cylindrical hood is provided in front of the partition plate provided at the front end portion of the outer shell tube, and the partition plate is formed by connecting fan-shaped face plates with overlapping straight side portions. The connecting portion that overlaps the straight side portions is formed in a disc shape, and has a structure that is decentered by a predetermined distance from the vicinity of the center of the partition plate that provides the opening for the rotating shaft. Propulsion excavator capable of split collection characterized by being able to disassemble and collect the rotary excavation part 2) A cylindrical outer shell tube is structured in such a manner that a plurality of outer shell members are detachably connected in the axial direction, and the outer shell tube is reused. So that you can divide and collect in the available state The propulsion excavator 3) that can be divided and collected as described in 1) above has a structure in which the outer shell member has a flange protruding toward the inside of the excavator body at the end of a plate-like member curved with a predetermined curvature, wherein the plurality of outer shell member so as to detachably connected with the fastening bolt combined flange surface 1) or 2) propulsion excavating device 4 can split recovered according to any) rotating drilling unit, the rotary shaft A center part detachably attached to the center part and a cutter arm having a large number of excavating blades extending in all directions from the center part, wherein at least two opposing cutter arms are detachably attached to the center part. It exists in the propulsion excavator which can perform the division | segmentation collection | recovery in any one of 1) -3) .
[0005]
[Action]
In the present invention, the rotary excavation part at the tip of the apparatus is rotated, and the ground is excavated by the excavation blade of the rotary excavation part. A propulsion pipe is connected to the rear end of the apparatus and propelled so that the rear end of the propulsion pipe is pushed into the ground. When the underground pipe is constructed in this way and the propulsion excavator reaches the target point such as a manhole or an existing pipe, the rotary excavator at the tip of the propulsion excavator is first detachably attached to the rotary shaft. Therefore, the rotary excavation part is removed and removed in a reusable state. Next, the removable hood is removed, and the plurality of hood plates are disassembled and removed. Next, remove the bulkhead board that closes the outside and the excavator body at the front end of the outer shell tube of the propulsion excavator, disassemble and remove it into multiple faceplates, and disassemble and collect the bulkhead board, the hood, and the rotary excavator .
Partition wall panel is, since the linked superimposed straight side portions of the fan-shaped faceplate, easily to allow disassembly and assembly of the partition wall panel in consolidated removal and coupling parts so as to offset from the center of the partition plate The strength of the partition board is secured by avoiding the opening for the rotating shaft .
In the case where a cylindrical outer shell pipe is connected to a plurality of outer shell members in an axial direction, the propulsion excavator reaches the target point, and the partition plate, hood, rotary excavator and other propulsion unit main bodies are disassembled. After the recovery, the remaining cylindrical outer shell tube is disassembled in the axial direction and recovered as a plurality of outer shell members even from small openings.
The outer shell member has a structure in which a flange is provided at the end of the curved plate member, and the flange provided at the end of the curved plate member is aligned with the flange of another plate member, An outer shell tube that can be disassembled is configured by connecting flanges by fastening bolts and nuts.
When the rotary excavation part has a structure in which a cutter arm is attached so as to be detachable facing the central part, the two opposing cutter arms of the cutter arm extending from the central part to approximately four directions are removed and recovered even from a small opening. .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The excavator body installed in the cylindrical outer shell tube is preferably detachably attached to the outer shell tube, and the excavator body preferably has a size that can be disassembled into a human hole or the like.
There are bolts and nuts to be installed, bolts and nuts are installed on one member, bolts are installed, and bolts are embedded on one member and bolts are installed. You may decide from strength and cost.
There are fume pipes and iron pipes for propulsion pipes, either of which can be used, and it can be determined from the application and purpose.
[0007]
【Example】
Embodiments of the present invention will be specifically described with reference to the drawings.
The embodiment shown in FIGS. 1 to 10 has a structure in which a partition plate is formed by connecting a fan-shaped face plate with bolts, and a cylindrical outer shell tube is detachably connected to a plurality of outer shell members in the circumferential direction and the axial direction. FIG. 2 is an example of a propulsion excavator that can perform divided recovery with a structure having a flange at the end of a plate-like member having a curved outer shell member.
In the figure, 1 is a propulsion excavator, 2 is a shell tube, 3 is a plate-like shell member, 3a is a flange, 3b is a bolting portion, 4 is a shell tube, 5 is a plate-like shell member, and 5a is a flange. 5b is a bolting part, 6 is a partition board, 7 is a face plate, 7a is an overlapping part, 7b is an intake hole, 7d is a bolting part, 8 is a face plate, 8a is an overlapping part, 8c is a bolting part, 9 Is a gear box, 10 is a rotating shaft, 11 is a speed reducer, 12 is an electric motor, 15 is a hood, 16 is a hood plate, 16a is a flange, 16b is a bolt stop, 18 is a mud pipe, 19 is a correction jack, Control device, 21 is a rotary excavation part, 22 is a central part, 22a is an attachment part, 22b is a bolt attachment part, 23 is a fixed cutter arm, 23a is an excavation blade, 24 is a detachable cutter arm, 24a is an excavation blade, 24b is a bolt mounting part, 25 is a propulsion pipe, 3 It is a human hole.
FIG. 1 is an explanatory diagram of a propulsion excavator that can perform divided collection according to an embodiment.
FIG. 2 is a front view of the propulsion excavator capable of division collection according to the embodiment.
FIG. 3 is a cross-sectional view of the propulsion excavator capable of division recovery according to the embodiment.
FIG. 4 is an explanatory diagram of a rotary excavation unit of the propulsion excavator that can perform divided collection according to the embodiment.
FIG. 5 is an explanatory diagram of the rotary excavation unit of the propulsion excavator that can perform divided collection according to the embodiment.
FIG. 6 is an explanatory diagram of the outer shell tube of the propulsion excavator capable of division collection according to the embodiment.
FIG. 7 is an explanatory diagram of a hood of a propulsion excavator that can perform divided collection according to the embodiment.
FIG. 8 is an explanatory diagram showing a state in which the propulsion excavator capable of division collection according to the embodiment is divided and collected.
FIG. 9 is an explanatory diagram showing a state in which the propulsion excavator capable of division collection according to the embodiment is divided and collected.
FIG. 10 is an explanatory diagram of a plate-like outer shell member of the outer shell tube of the propulsion excavator capable of division recovery according to the embodiment.
[0008]
In the propulsion excavator 1 of the embodiment, as shown in FIGS. 1 to 10, first, the cylindrical outer shell pipes 2 and 4 are attached to the end portions of the plate-like outer shell members 3 and 5 which are curved plate-like materials. The flanges 3a and 5a are provided so as to protrude toward the inside of the excavator main body, and the plate-like outer shell members 3 and 5 are aligned with the surface of the flange, and are connected by fastening with bolts and nuts. At this time, the plate-shaped outer shell member 3 is connected in the axial direction and the circumferential direction to form the outer shell tube 2, and the plate-shaped outer shell member 5 is connected in the axial direction and the circumferential direction to connect the outer shell tube 4. Form.
The outer shell pipes 2 and 4 formed in this way are connected by a correction jack 19 and used as the outer shell pipe of the propulsion excavator 1.
Next, the partition board 6 is composed of substantially semicircular face plates 7 and 8 as shown in FIG.
The face plate 7 is substantially semicircular, and is provided with a notch (not shown) for a rotating shaft at the center, and an intake hole 7b at a position eccentric from the center. Further, the semicircular straight side portion is provided with a thin portion along the straight side to form the overlapping portion 7a. The thin portion of the overlapping portion 7a is made to be about half the thickness of the face plate 7. The overlapping portion 7a is provided with a large number of bolt holes for attaching bolts to form bolt fixing portions 7d. Next, the face plate 8 is provided. The face plate 8 is substantially semicircular and is provided with a notch for rotation shaft (not shown) at the center, and a thin portion is provided on the semicircular linear side portion to form the overlapping portion 8a. The overlapping portion 8a is provided with a bolt fixing portion 8c by providing a large number of bolt holes for attaching bolts.
The semicircular shape of the face plates 7 and 8 is formed into a disk shape when the overlapping portions 7a and 8a are overlapped, and the overlapping portions 7a and 8a are decentered by a predetermined distance from a straight line passing through the center of the disk shape. Like that.
The face plates 7 and 8 are overlapped with the overlapping portions 7 a and 8 a, and the partition board 6 is formed so as to stop the bolts at the bolt fastening portions 7 d and 8 c, and the frontmost plate-like outer shell of the outer shell tube 2 is formed. The member 3 is attached to the foremost flange 3a of the member 3 with a bolt. Thereby, the partition plate 6 is attached to the tip portion of the outer shell tube 2.
Next, the gear box 9 is placed inside the excavator of the partition plate 6 so that the rotation shaft 10 protrudes from the opening formed by aligning the notch (not shown) for the rotation shaft of the partition plate 6 to the tip. Install on the side. Next, an electric motor 12 and a speed reducer 11 for driving the rotary shaft 10 are detachably provided.
Next, the sludge pipe 18 is detachably provided on the inside of the excavator of the intake hole 7b of the partition board 6, and the control device 20 is detachably provided inside the outer shell pipes 2 and 4.
[0009]
Next, a cylindrical hood 15 is provided. In the hood 15, first, a plurality of hood plates 16 having a shape obtained by dividing the cylinder in the circumferential direction are provided with flanges 16a at the divided portions, and bolts 16b are provided on the flanges 16a, and the flanges 16a of the hood plates 16 are aligned. The hood 15 is configured by connecting the hood plate 16 with bolts.
The hood 15 is detachably attached to the front end side of the partition plate 6 with bolts.
Next, the rotary excavation part 21 is provided. As shown in FIGS. 4 and 5, the rotary excavation part 21 is provided with a cutter arm 23 having a shape extending to the outer peripheral side so as to be opposed to the central part 22 of the structure that is detachably attached to the rotary shaft 10, and is provided with a cutter. A mounting portion 22a having a shape that is substantially orthogonal to the arm 23 and extends to the outer peripheral side so as to face 180 ° is fixed to the central portion 22, and a cutter arm 24 having a bolt mounting portion 24b on the two mounting portions 22a is provided. Removably attach with bolts. The cutter arms 23 and 24 are provided with excavation blades 23a and 24a, respectively. The rotary excavator 21 is attached to the rotary shaft 10 so as to be positioned in front of the hood 15.
[0010]
In order to construct the underground pipe using the propulsion excavator 1 of the present embodiment, excavation is performed by the rotary excavation unit 21 that transmits the drive of the electric motor 12 by the reduction gear 11 and the gear box from the start shaft. Then, the propulsion excavator 1 is started, the propulsion pipe 25 is connected to the rear end of the propulsion excavator 1, and the rear end of the propulsion pipe 25 is pushed into the ground by a propulsion apparatus (not shown). And the propulsion pipe 25 is propelled. The propulsion pipe 25 is extended by the propulsion device so as to be added one after another according to the propulsion. When the underground pipe is constructed in this way and the propulsion excavator 1 reaches the target hole 30 as shown in FIGS. 8A and 8B, the rotary excavation unit 21 and the hood 15 are connected to the human hole. Protrused to protrude into 30.
Next, as shown in FIGS. 4 and 5, the rotary excavation portion 21 is removed by removing the bolt attachment portions 22b and 24b so that the two cutter arms 24 can be removed and a narrow human hole can be passed through. To do.
Next, the hood 15 is detached from the partition board 6 by removing the bolts, and the hood 15 is disassembled by removing the bolts from the plurality of hood plates 16, and is taken out from the human holes and collected.
Next, the bulkhead board 6 is detached from the outer shell tube 2 by removing the bolts, the gear box 9, the speed reducer 11, the electric motor 12, and the waste mud pipe 18 are detached from the bulkhead board 6 by removing the bolts, and further the gears are removed. The speed reducer 11 and the electric motor 12 are detached from the box 9 by removing the bolts, and the drainage pipe 18 is divided into a plurality of parts by removing the bolts, and is taken out from the manhole and collected. Also, the control device and the like are removed from the inner circumference of the outer shells 2 and 4 and are taken out from the manhole and collected.
Next, the outer shell tube 2 is disassembled into a plurality of plate-shaped outer shell members 3 so as to be divided in the circumferential direction and the axial direction by removing the bolts, and are taken out from the human holes and collected.
Next, the outer shell tube 2 is propelled by the length, and further, the outer shell tube 4 is disassembled into a plurality of plate-like outer shell members 5 so as to be divided in the circumferential direction and the axial direction by removing bolts. Unload from the hole and collect. Next, the outer shell tube 4 is propelled by the length, the connection process between the manhole and the propulsion tube is performed, and the underground pipe construction is completed.
[0011]
The recovered propulsion excavator 1 reassembles the outer shell tube 2 by fitting the flange 3a surface of the plate-shaped outer shell member 3 with bolts and reattaches the flange 5a surface of the plate-shaped outer shell member 5 with bolts. Then, the outer shell tube 4 is reformed, and the outer shell tube 2 and the outer shell tube 4 are connected by the correction jack 19, and the face plate 7 and the face plate 8 are overlapped with each other so that the portions 7a and 8a are attached with bolts. Then, the partition board 6 is attached to the front end of the outer shell tube 2 with bolts. Next, the gear box 9, the speed reducer 11, the electric motor 12, and the mud pipe 18 are reattached to the inner side of the outer shell pipe of the partition board 6 with bolts. Next, the hood 15 is reformed so that the surfaces of the flanges 16a of the hood plate 16 are aligned, the hood 15 is attached to the front of the partition board 6 with bolts, and the cutter arm 24 is attached to the attachment portion 22a again. 21 is attached to the rotating shaft 10 that protrudes forward from the partition board 6 by attaching the gear box 9 to the partition board 6 so that the propulsion excavator 1 can be reconfigured and reused.
As described above, the propulsion excavator 1 of this embodiment disassembles and recovers all the parts from the outer shell pipe, the partition board, the hood, and the rotary excavation part even when the arrival point is a narrow opening such as a human hole and an existing pipe. The collected parts can be reused after reassembly, and the construction cost can be greatly reduced. Further, there is no need to provide a recovery shaft, no need for fusing, the work can be facilitated, and the construction period can be shortened. In addition, this apparatus component can also be collect | recovered via the propulsion pipe | tube constructed | assembled by the propulsion excavator 1. FIG.
[0012]
【The invention's effect】
According to the present invention, the propulsion excavator can be recovered from the manhole and the existing pipe without constructing a recovery shaft, and the recovered propulsion excavator can be reused, greatly reducing the cost and construction period. Work can be done easily.
Since the partition board overlaps and connects the straight side portions of the fan-shaped face plate, it can be further easily disassembled and reused, and the construction period can be shortened and the cost can be reduced.
A cylindrical outer shell tube with a plurality of outer shell members detachably connected in the axial direction allows the outer shell tube to be recovered from human holes, etc., with reduced costs, so that construction costs can be reduced. To do.
A structure in which a flange is provided at the end of a plate-like member having a curved outer shell member can further reduce the cost and can be easily operated.
When the rotary excavation part is structured so that the cutter arm is attached to the central part so as to be detachable, the propulsion excavator can be recovered and reused through a narrow opening such as a human hole. .
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a propulsion excavator that can perform divided collection according to an embodiment.
FIG. 2 is a front view of a propulsion excavator capable of divided collection according to an embodiment.
FIG. 3 is a cross-sectional view of a propulsion excavator capable of divided collection according to an embodiment.
FIG. 4 is an explanatory diagram of a rotary excavation unit of a propulsion excavator capable of divided collection according to an embodiment.
FIG. 5 is an explanatory diagram of a rotary excavation unit of a propulsion excavator capable of divided collection according to an embodiment.
FIG. 6 is an explanatory diagram of an outer shell tube of a propulsion excavator that can be disassembled and recovered according to an embodiment.
FIG. 7 is an explanatory diagram of a hood of a propulsion excavator that can perform divided collection according to an embodiment.
FIG. 8 is an explanatory diagram showing a state in which a propulsion excavator capable of divided collection according to an embodiment is divided and collected.
FIG. 9 is an explanatory diagram showing a state in which a propulsion excavator capable of divided collection according to an embodiment is divided and collected.
FIG. 10 is an explanatory diagram of a plate-like outer shell member of an outer shell tube of a propulsion excavator capable of division recovery according to an embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Propulsion excavator 2 Outer shell tube 3 Plate-shaped outer shell member 3a Flange 3b Bolt stop part 4 Outer shell tube 5 Plate-shaped outer shell member 5a Flange 5b Bolt stop part 6 Partition board 7 Face plate 7a Overlapping part 7b Intake hole 7d Bolt Stop part 8 Face plate 8a Overlapping part 8c Bolt stop part 9 Gear box 10 Rotating shaft 11 Reducer 12 Motor 15 Hood 16 Hood plate 16a Flange 16b Bolt stop part 18 Mud pipe 19 Correction jack 20 Control device 21 Rotary excavation part 22 Center Portion 22a mounting portion 22b bolt mounting portion 23 (fixed) cutter arm 23a drilling blade 24 (removable) cutter arm 24a drilling blade 24b bolt mounting portion 25 propulsion pipe 30 human hole

Claims (4)

A cylindrical hood is provided in front of the cylindrical outer shell tube, a rotary excavating part having a drilling blade is arranged in front of the hood, and the hood is configured to be disassembled by connecting a plurality of hood plates. Part is also detachably attached , and the cylindrical hood is provided in front of the partition plate provided at the front end of the outer shell tube. In addition, the connecting portion that overlaps the straight side portions is a position that is eccentric from the vicinity of the center of the partition plate that provides the opening for the rotating shaft by a predetermined distance , and after excavating to the destination point, rotating excavation with the hood Propulsion excavator capable of split collection, characterized in that the part can be disassembled and collected. 2. The divided collection according to claim 1, wherein a cylindrical outer shell tube has a structure in which a plurality of outer shell members are detachably connected in an axial direction so that the outer shell tube can be divided and collected in a reusable state. Propulsion drilling rig that can. The outer shell member has a structure that has a flange projecting toward the inside of the excavator body at the end of the plate-like member that is curved with a predetermined curvature, and the outer shell members can be attached and detached by fastening bolts with the flange surfaces aligned. A propulsion excavator capable of split collection according to any one of claims 1 and 2, wherein the propulsion excavator is capable of being divided and collected. The rotary excavation part is composed of a central part that is detachably attached to the rotary shaft, and a cutter arm that extends from the central part in four directions and has a large number of excavation blades. At least two opposing cutter arms are detachable from the central part. A propulsion excavator capable of split collection according to any one of claims 1 to 3 .

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