JPH1163301A - Propulsion pipe feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically feed propulsion pipes in a non-open-cut pipe propulsive construction method and reduce the frequency of line passing work to propulsion pipes to a minimum so as to considerably reduce total workhours. SOLUTION: A cage 24 for simultaneously accommodating a plurality of propulsion pipes 18 is placed in a state of being able to go in and out of a shaft 10 by a lifting jack. On the ground, the propulsion pipes 18 are accommodated in the cage 24, and passing of a cable or a hose to be connected to a guide body is completed in the cage 24. The cage 24 is lowered into the shaft 10 and arranged in a fixed position, and the hose or the like is connected. While moving the propulsion pipes 18 in order from the lower end of the cage 24 into a start position of a start frame 12, the housed propulsion pipes 18 are moved down at storage pitch intervals. This action is repeated to continuously feed all the propulsion pipes 18 in the cage 24 to the start frame side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a propulsion pipe supply apparatus, and more particularly to a propulsion pipe supply apparatus capable of continuously supplying a propulsion pipe to a starting shaft in a non-drilling pipe propulsion method.

[0002]

2. Description of the Related Art In a conventional non-drilling pipe propulsion method, excavation is started along a linear route by starting a leading conductor from a starting shaft, and a new tip is provided at a rear end of the leading conductor or a rear end of a preceding propulsion pipe. The propulsion pipe is connected to the socket, and the propulsion pipe is pushed by an original pushing device installed in the shaft to excavate.

In such a construction method, the supply of the propulsion pipe to the main pushing device has been conventionally performed as follows. The propulsion pipe has a length of 2.5 m and is piled up in a temporary storage area on a shaft. The propulsion tubes are lifted one by one by a crane, moved right above the shaft, and temporarily placed on the underground main pushing device. For the propulsion pipe temporarily placed on the main pushing device, cables and hoses for supplying power and hydraulic power to the leading pipe, or recovery rods (PC steel rods) used for recovery operation of the propulsion pipe Do the line work. After conducting the wiring work, the terminal treatment of the connecting parts of the cables and the connecting work of the collection rod are performed, and the positioning work with the rear end of the existing propulsion pipe is performed. This alignment work is performed while the new propulsion pipe is suspended by a crane, and after a worker in the mine aligns the tip with the preceding propulsion pipe and fits the tip, the propulsion work process using the main pushing device is performed. Detach and connect the cable and hydraulic hose connection after propulsion. Such a series of operation steps is performed each time the propulsion step of one day is performed.

[0004]

However, in the conventional method, the operation of supplying the propulsion pipe to the shaft is suspended from the ground every time one propulsion (2.5 m) corresponding to the length of the propulsion pipe is completed. Therefore, there is a problem that workability is extremely poor. Further, since the suspended propulsion pipe is manually centered with the preceding propulsion pipe while being suspended by a crane, it is extremely difficult to perform quick adjustment work. In particular, a wire work such as a cable is required for each propulsion pipe. However, it is very difficult to perform terminal treatment associated with the wire, and a taping work at a joint portion and a cable / wire work are required.
There has been a problem that the frequency of repetitive work of attaching and detaching the hose is high, and the working efficiency is poor. Further, the recovery rod used for the recovery operation of the propulsion pipe is generally provided with a turnbuckle connection structure in which a thread is cut at a connection end and a threaded socket is used to screw between the rods. is there. Due to such a coupling structure, connection work is extremely difficult, and in the case of curve excavation, the recovery rod does not bend and the propulsion pipe recovery rod disturbs the linear propulsion line along the route. I was just doing.

An object of the present invention is to provide a propulsion pipe supply device suitable for automating the supply of a propulsion pipe in a non-cutting pipe propulsion method, focusing on the above conventional problems. It is another object of the present invention to provide a propulsion pipe supply device capable of greatly reducing the total work time by minimizing the number of times of the line operation to the propulsion pipe.

[0006]

In order to achieve the above object, a propulsion pipe supply device according to the present invention has a cage capable of accommodating a plurality of propulsion pipes in multiple stages. Lifting means capable of sending out the lower part, and a gripping mechanism capable of receiving the lowermost propulsion pipe from the elevating means and sending it out to a lower starting stand, and a lifter capable of moving the cage in and out of a shaft. It is characterized by having. In this case, the cage is provided with a guide roller that is inserted close to the open portion of the accommodated propulsion pipe and that is inserted into the folded-back portion of the cables that are routed through the plurality of propulsion pipes. It is desirable to form a vertical gap for cables and the like. Further, the cage elevating means has an index mechanism that enables an intermittent descent by an arrangement pitch of the accommodation propulsion pipe, and the gripping mechanism further includes a propulsion pipe between the accommodation position of the cage and the standby position of the starting stand. Can be moved and the posture of the propulsion pipe can be adjusted so as to be in contact with the side of the propulsion pipe at four points, and the contact position can be changed by independent driving means.

[0007]

According to the above construction, the propulsion pipe for the propulsion process for one day can be stored in advance in the cage on the ground.
Then, since the propulsion tubes housed in the cage can be sequentially transferred from the bottom to the starting base and forwarded, work on the ground to house the cage in the shaft may be performed once a day,
Work load is extremely reduced. In addition, since the passage of cables and the like to the propulsion pipe housed in the cage on the ground is completed, the connection of cables and the like and the number of terminal processes associated with the connection of the propulsion pipe can be greatly reduced. The propulsion pipe housed in the cage can be moved down as a whole, but it is necessary to remove the guide when moving while properly guiding the cables that are outside the propulsion pipe. Can be realized by dividing or pulling in. In addition, the gripping mechanism carries out the propulsion tube taken out of the cage, but by using a so-called independent drive system,
Horizontal adjustment can be made while holding the propulsion tube. Thereby, centering on the existing propulsion pipe in the starting frame can be easily performed.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a preferred embodiment of a propulsion pipe supply device according to the present invention.

FIG. 1 shows the entire configuration of the underground equipment in the starting shaft 10. As shown in the figure, a starting stand 12 is provided on the bottom of the starting shaft 10, and a reaction force receiver 14 provided at the rear end of the stand 12 is used as a support member to serve as a main pushing device 16.
As a result, the propulsion pipe 18 is pushed and propelled along the propulsion route. The main pushing device 16 is composed of a bogie 20 and a propulsion jack 22, and the propulsion pipe 18 is driven by the thrust of the propulsion jack 22.
Is inserted into the preceding propulsion pipe and pushed out.

The starting stand 12 in such a shaft 10
In order to continuously supply the propulsion pipes 18 to the parts, the present invention uses a cage 24 which can be stored in multiple stages in the vertical direction by the number of propulsion pipes 18 to be constructed in one day, which can be raised and lowered. It is made possible to enter and exit between the ground side and the inside of the shaft 10, and after the necessary number of propulsion pipes 18 are housed in advance on the ground side, the cage 24 is housed and held at a fixed position in the shaft 10, and the lower part is sequentially propelled. The tube 18 is transferred and supplied to the starting stand 12. For this reason, the cage 24 is constituted by a rectangular frame 26, and forms a space in which the propulsion pipes 18 having a length of 2.5 m can be arranged in multiple stages at intervals vertically.

First, lift jacks 28 are mounted at four locations on the outer surface of the cage 24 in order to move the cage 24 in and out of the shaft 10. The lift jack 28 pivots the base end of the cylinder to the upper edge of the cage 24, and attaches the leg plate provided at the rod end to the belly material 30 provided at the middle part of the shaft 10, thereby connecting the cage 24. It is kept stable in the shaft 10. By the lifting drive operation of the lift jack 28, the cage 24 is moved upward to the ground side to simultaneously accommodate the plurality of propulsion tubes 18 in the cage 24, and by reaching the descending end as shown in FIGS. The propulsion pipes 18 are stored inside the shaft 10 at a height at which the propulsion pipes 18 can be fed one by one.

In such a cage 24, the propulsion pipes 18 are accommodated and held while being arranged vertically at a fixed pitch interval, and each time the propulsion pipes 18 are taken out one by one from below the cage 24, they are accommodated. A propulsion pipe row raising / lowering means for lowering the whole of 18 by one pitch is incorporated. The propulsion pipe row raising / lowering means is disposed near four corners of the cage 24 and has four chain-type loads adapted to support the load on the front left and right sides and the rear right and left sides of the stored propulsion pipe 18. It is constituted by a support portion 32.

FIG. 2 shows the structure of each chain-type load supporting portion 32.
In addition, FIG. As shown in the figure, the chain-type load support portion 32 includes an upper sprocket 33.
And a link chain 36 orbiting between the lower sprocket 34 and the lower sprocket 34.
Are mounted at regular intervals. The pipe seat 38 supports a front part and a rear part of the propulsion pipe 18 in a pair of right and left,
Therefore, the arc-shaped bearing surface of the pair of left and right pipe seats 38 is
The propulsion pipe 18 should be able to sufficiently support the pipe load.
Is set so as to follow the lower half arc. The pipe seats 38 are attached to the link chain 36 at regular intervals, but may be set at intervals such that the vertical propulsion pipes 18 do not interfere with each other in the housed state, as shown in FIG. Further, since the propulsion pipe 18 cannot be supported when the width interval between the pair of left and right pipe seats 38 fluctuates, a chain travel guide 40 is attached so that the distance between the pair of left and right link chains 36 does not change. 18
The traveling line of the link chain 36 facing the side is fixed.

Further, four chain-type load supporting portions 32 are provided.
Need to be operated synchronously. For this purpose, the upper sprockets 33 located on both sides are connected to each other by a connecting shaft 42. An index mechanism 44 that is driven at a constant pitch is attached to the connection shaft 42, and the connection shaft 42 is rotationally driven from the mechanism via a reduction gear so that synchronization is achieved. The chain-type load supporting portion 32 uses the weight of the accommodated propulsion pipe 18 to perform downward feeding, and the index mechanism 44 can rotate the index mechanism 44 only one pitch (propulsion pipe arrangement interval). And a set pin are provided, and after the link chain is operated for one pitch, the link is reliably stopped. And the downward movement of the propulsion pipe 18
By touching the cancel pin of the index mechanism 44, the lowering of one index is automatically performed. Further, at the time of pipe feeding or maintenance and inspection when the propulsion pipe 18 is housed, the mode can be switched to manual and the link chain can be driven by a small motor, but the automatic device does not malfunction except at this time.

The link chain 36 is provided with an accommodating bracket 46 for cables, which will be described later, at an intermediate portion of the pipe receiving seat 38, so that a cable which is continuously passed through the propulsion pipe 18 accommodated in the cage is connected. I try to keep it halfway.

The propulsion pipe 18 housed in the cage 24 is, as shown in FIG.
A is provided with a socket portion 18B at one end side, and the leading end of a subsequent propulsion pipe is inserted into the socket portion 18B and connected. Inside such a propulsion pipe 18 is connected to a digging destination conductor, and when an obstacle such as an underground buried object appears in front of the digging, a recovery used for the recovery operation of the propulsion pipe when correcting the digging direction or the like. The rod member 48 is inserted and connected to the collection rod member 48 of the propulsion pipe 18 which precedes the pipe propulsion operation. In addition, cables 50 such as a power supply cable and a hydraulic hose are connected to the propulsion pipe 18 for connection of the leading conductor to electrical equipment or hydraulic equipment. The recovery rod 48 as a line member to the propulsion pipe 18 is of a pipe length unit, but the cables 50 need only a distance corresponding to the route distance from the starting shaft 10 until the leading conductor finally reaches the reaching shaft. It is continuous. In the present embodiment, when the propulsion pipes 18 are accommodated in the cage 24 in multiple stages, continuous cables 50 are connected in series to the propulsion pipes 18 on the cage at the same time. At this time, since the cables 50 are serially connected to the propulsion pipes 18 arranged in upper and lower tiers, the cables 50 are folded in the cage 24 in the cage 24,
There is an insertion part into the inside of the propulsion pipe 18 and a return path part exposed to the outside for turning back to the entrance side to the next stage of the propulsion pipe 18. It is configured to be held and held by the attached holding bracket 46.

At the open end of the propulsion pipe 18 housed in the cage 24, the cables 50 are curved in a U-shape.
Are provided at both ends thereof with guide rollers 52 inserted into the cable bending portion 50C. This guide roller 52
When the propulsion pipe 18 moves downward, the cable bending portion 50
Since C also moves downward, a moving gap is formed by dividing and separating at the center at the time of the downward movement, and after one downward movement of the pitch, it is again inserted into the cable bending portion 50C to form one guide roller 52. It has become.
This specific configuration is shown in FIG. At the front and rear ends of the cage 24, a guide roller 52 is disposed at a position facing the opening of the accommodated propulsion tube 18, and this is such that roller halves 52H that can be separated at the center are concentrically arranged. One guide roller 52 is configured by abutting the leading end. An opening / closing jack 54 is arranged at the base end of each roller half 52H, and the jack 54 is driven to open and close synchronously to form a space for moving up and down the cable bending portion 50C. 6 (1) is a plan view of the cage 24, FIG. 6 (2) shows a cross section of a housing portion of the opening / closing jack 54, and FIG. 6 (3) shows a separated state of the guide roller 52. FIG. Is a side view of the cage 24. FIG.

Such a mechanism of the guide roller 52 is necessary for winding the extra length of the cables 50, and each time the propulsion tube 18 is fed out one by one, the cable approximately corresponding to the length of the propulsion tube 18 is used. Since the class 50 becomes extra, it is wound up at the rear of the cage 24.

Next, the propulsion pipe 18 housed in the cage 24
A propulsion tube gripping mechanism is provided on the side surface of the cage 24 in order to take out one by one from the lower part and supply it to the starting stand 12 side. The gripping mechanism is constituted by four gripping arms 56 arranged near the four corners of the cage 24 adjacent to the chain-type load supporting portion 32 constituting the elevating means. By grasping from the left and right, and simultaneously grasping the rear from the left and right, the propulsion tube 18 detached from the propulsion tube row elevating means is received and moved to the start position. As shown in FIG. 8, the gripping arm 56 includes a telescopic arm 58 that is suspended downward from a central horizontal beam of the cage 24, and is attached to a distal end of the telescopic arm 58 and expands and contracts toward the side of the propulsion pipe 18. And an enabled clamp jack 60. A pickup plate 62 having an arc-shaped gripping surface is attached to the tip of the clamp jack 60, and can be moved by grasping the propulsion tubes 18 one by one by the hydraulic gripping force of the clamp jack 60. This gripping mechanism grips the propulsion pipe 18 at a position located at the lowermost end of the propulsion pipe row elevating means, and further moves down by releasing the propulsion pipe row elevating means, thereby moving the axis of the gripping propulsion pipe 18 to the propulsion center. To match. A single propulsion pipe 18 is gripped by four gripping arms 56. The direction of the propulsion pipe 18 being gripped can be adjusted by adjusting the amount of expansion and contraction of the extensible arm 58 and the amount of expansion and contraction of the clamp jack 60. It can be done very easily. That is,
The pitching of the propulsion pipe 18 can be adjusted freely by operating the grip arm 56, and the yawing can be adjusted freely by operating the clamp jack 60.

As shown in FIG. 8, a roller 64 is provided on the arcuate surface portion of the pickup plate 62 to allow the gripping propulsion tube 18 to move in the axial direction. As a result, after the centering is performed, it can be freely inserted and connected to the preceding propulsion tube by the main pushing device 16.

As described above, the cables 50 that pass through the inside of the propulsion pipe 18
Because it is folded back in a cage shape in the cage 24,
It is necessary to take up and store an extra length as the propulsion process proceeds. In this embodiment, as shown in FIG.
4, the upper propulsion pipe 18 housed in the cage 24 through the guide sheave 66 provided at the rear upper end position.
The propulsion pipes 18 in the cage 24 are introduced into the cage 24 by introducing the cables 50 into the cage 24, turning the cables 50 in an inverted manner from the outlet opening, guiding the cables 50 along the outer surface of the pipe to the inlet of the lower propulsion pipe 18, and then introducing the cables through the opening. All are inserted in series, and this is connected to the leading conductor. Although such a work of passing the cables 50 is performed on the ground, the propulsion pipes 18 are sequentially sent out to take up and store the extra length. For this purpose, an extra-length cable housing case 68 is provided below the guide sheave 66. A cable pulling mechanism 70 is provided to perform the operation of drawing in the housing case 68. This is composed of a hydraulic jack 72 and a grip portion 74 provided at the tip thereof and gripping the cables 50 only during the pull-in operation. The grip 74 employs a mechanism that synchronizes the gripping operation only when the hydraulic cylinder 72 is lowered, that is, when the hydraulic cylinder 72 is retracted. Further, the hydraulic cylinder 72 is synchronized with the propulsion jack 22, and the cables 50 are pulled out from the propulsion pipe row in accordance with the propulsion amount, and the setting is adjusted so that the excess cables 50 are pulled in and accommodated without excess or shortage. I have.

The collection rod 4 accommodated in the propulsion pipe 18
Reference numeral 8 particularly enables one-touch connection by adopting a male and female fitting structure. For this reason, an insertion flange portion is formed at one end of the shaft main body, and a receiving groove is formed at the other end, and the flange portion and the receiving groove are configured to be orthogonal to each other. There is a through hole in the insertion collar,
A through pin is provided in the receiving groove. The through pin is configured to be separated by insertion of the insertion flange, and to be restored when the insertion is completed to prevent the insertion pin from falling off. Therefore, by connecting the collection rods 48 with each other using the collection rods having such a configuration, the collection rods have a universal joint connection structure, and can sufficiently follow the curve of the propulsion pipe 18 in a curved excavation. It will be.

The continuous supply operation performed by using the propulsion pipe supply device having the above-described structure is performed as follows. First, work on the road is performed. This is performed by opening the lining plate of the starting shaft 10 and installing a simple workbench for installing the propulsion pipe. The propulsion pipe 18, the collection rod 48, the cables 50, and the like may be carried in advance into a work space around the shaft 10, and the propulsion pipe 18 and the like may be carried into a work table by a crane operation. By opening the lining plate, the cage 24 previously stored in the mine is raised by operating the lift jack 28 so that the propulsion pipe 18 can be introduced. Of course, in the case of the first time for starting the leading conductor, the cage 24 is carried into the shaft using a crane or the like, and is placed in a fixed position. Then, the propulsion pipes 18 are introduced into the cage 24 through the simple worktable, and each of the propulsion pipes 18 is inserted into the pipe receiving seats 38 at the same height in the four chain-type load supporting portions 32 constituting the elevating means. It is accommodated by placing it. Housed propulsion tube 18
At this stage, the collection rod 48 and the cables 50
And let it go through. The operation of mounting the propulsion pipes 18 on the cage 24 and the operation of connecting the wires are performed at the same time, and this processing is performed until the number of propulsion pipes 18 corresponding to the work propulsion for one day is mounted. In this process, when the cables 50 are passed through the propulsion pipes 18 that are accommodated in multiple stages in the vertical direction, the propulsion pipes 18 are inserted from the opening on the face side of the lower propulsion pipe 18 and pulled out from the opening at the opposite end. When the cable 18 is to be connected, the cables 50 must be once pulled back to the opening on the face side and then inserted again. Therefore, the cables 50 are connected to the propulsion pipe 1
Although it is exposed to the outside between the spaces 8, it is held by the storage bracket 46 provided on the link chain 36 of the elevating device described above. In addition, since the cable guide rollers 52 are arranged so as to face the front and rear openings of the propulsion pipe 18, the cables 50 are arranged so that the rollers 52 are passed through the cable bending portion 50C. Then, when the storage number is reached, the cage 24 is lowered, the lining plate is closed, and the road operation is completed.

Next, the operation shifts to underground work. In this, first, the first propulsion pipe supply operation is performed. This is an operation for transferring the propulsion pipe 18 located at the lower stage toward the starting base 12. The cable guide rollers 52 arranged before and after the cage 24 are opened, and when the propulsion pipe 18 is moved downward, the rollers 5 are formed so as to form a downward gap of the cable bending portion 50C.
Separate 2 at the center. Then, the gripping mechanism is operated to grip the propulsion pipe 18, and the entire row of propulsion pipes housed by the chain-type load supporting portion 32 as the elevating means is moved down. Next, the original pressing device 16 is returned to the original position. Then, after the downward movement of one pitch, the closing operation is performed so that the insertion guide roller 52 is inserted again into the cable bending portion 50C. As a result, the single propulsion pipe 18 is sent out from the lower stage of the cage 24 to the starting stand 12 side. On the starting stand 12 side, the propulsion tube 18 adjusted to the starting line by the gripping mechanism is monitored by, for example, a monitor or the like, or by a sensor, and the level of the propulsion tube 18 is corrected. This can be easily performed by operating the four gripping arms 56 having independent gripping mechanisms. After the horizontal correction is performed, the main pushing device 16 is advanced to be connected to the rear end of the propulsion pipe 18.

During the operation of such a process, the terminal treatment of the cables 50 is performed manually in parallel in the shaft 10. This is the connection with the power unit, the connection with the front conductor rear,
It consists of an inspection process after connection. If there is any defect as a result of the inspection, these processes are repeated, and if there is no defect, the operation shifts to pipe propulsion work.

The propulsion operation is first performed by centering and pushing in the collection rod 48 accommodated in the propulsion pipe 18. This is to be automatically processed, and a chuck corresponding to the center of the propulsion pipe 18 conveyed by the propulsion pipe gripping mechanism using a connecting operation device disposed between the pair of propulsion jacks 22. This is performed by gripping and pushing the rear end of the collection rod 48 at the section. The chuck portion swings and rotates and waits for the next connection operation. Confirmation work after connection in this way is performed, and the original pressing device 1
6 is advanced, and the distal end of the propulsion pipe 18 held in a suspended state by the gripping mechanism is directed to an automatic alignment connection device (schematically shown in FIG. 3) 80 installed at the front of the starting base 12. And place the tip on it. Next, the propulsion pipes are connected to each other by the advancement of the main pushing device 16, whereby the role of the gripping mechanism is terminated, so that the propulsion pipes 18 are gripped and released, and return to the next gripping position. This completes the initial setting and the preparation for the automatic operation. During this time, since the propulsion tube 18 is gripped by the pickup plate 62 via the roller 64, the forward and backward movement can be performed very easily, and in this case, the centering position with the propulsion line is maintained. And stable pipe joining is performed.

Thereafter, the power unit is switched to the propulsion drive,
The forward pushing device 16 is advanced and the propulsion jack 22 is repositioned and propelled, and is propelled by the length of the propulsion pipe 18. After the propulsion work, the original pushing device 16 is returned to the original position, and it is determined whether or not the number of times of propulsion has reached the scheduled number. If the planned number of propulsion pipes has been reached, it is determined that the work of the day has been completed, data is collected, and the work ends.

In the above-described propulsion process, the extra length of the cables 50 may be collected in synchronization with the amount of propulsion movement. By synchronizing the recovery stroke with the amount of propulsion movement, the extra length of the protruding portion of the cables 50 is prevented from being dispersed.

When the first propulsion tube 18 starts moving,
The supply of the next propulsion pipe 18 is performed. This starts the supply operation first, but first, the number of supplies is checked.
If the supply number is the second or subsequent one, the process proceeds to the next process, and the lifting device and the gripping mechanism are operated. After that, the operation is basically the same as the case of the first line. The opening of the cable guide roller 52 and the lowering operation of the housing propulsion tube row are performed, the moving amount is determined by the index mechanism 44, and the moving by one pitch is performed. Stop after Thereafter, the cable guide roller 52 is closed, the propulsion pipe 18 gripped by the gripping mechanism is held at the start standby position, and the original pushing device 16 is stopped at the original position to be standby.

Thereafter, the propulsion pipe 1 transferred to the starting frame 12
8 is performed, and the main pushing device 16 is slightly advanced to join the pipe with the propulsion pipe 18. After the collection rods 48 are connected and the connection is confirmed, the front part of the propulsion pipe 18 is mounted on the centering device by advancing the main pushing device 16. Thereafter, the gripping mechanism returns to the original position, and then the forward pushing device 16 advances to establish a connection with the rear portion of the preceding propulsion tube.
After that, the propulsion process is performed, and when the number of times of propulsion reaches the predetermined number, the work of one day is finished.

As described above, according to this embodiment, a plurality of propulsion pipes 18 corresponding to the planned propulsion distance for one day are simultaneously placed in the cage 2.
4 and beforehand pass through it, accommodate the cage 24 in the shaft 10 and sequentially start it from the lower part, and move down the accommodation propulsion pipe row by one pitch each time it starts. Since it is supplied, the workability is extremely good. Further, since the cables 50 for which the extra length is generated by the start of the propulsion pipe 18 are configured to be collected in synchronization with the propulsion amount, the cables are not piled up randomly in the shaft 10, and the shaft is not piled up. A work space can be secured while effectively utilizing the narrow space inside the unit 10.

[0032]

As described above, according to the propulsion pipe supply device according to the present invention, the propulsion pipes for one day's propulsion process can be stored in advance in the cage on the ground, and the propulsion pipe can be stored in the cage. The propulsion pipes thus transferred can be sequentially transferred from below to the starting base and forwarded, so that the work on the ground for storing the cage in the shaft only needs to be performed once a day, and the work load is extremely reduced. At the same time, it is possible to complete the passage of cables and the like to the propulsion pipe housed in the cage on the ground, and it is possible to greatly reduce the connection of cables and the like and the number of terminal processes associated with the connection of the propulsion pipe.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire configuration of a propulsion pipe supply device according to the present invention.

FIG. 2 is a cross-sectional view of a shaft for accommodating a cage.

FIG. 3 is a vertical and horizontal cross-sectional view of a shaft containing a cage.

FIG. 4 is a partially enlarged front view and a side view of the elevating device for the propulsion pipe.

FIG. 5 is a longitudinal sectional view and a transverse sectional view of a propulsion pipe.

FIG. 6 is a plan view, a horizontal sectional view, and a partial sectional view showing an opened state of a cable guide roller of the cage.

FIG. 7 is a side view of the cage.

FIG. 8 is a sectional view of a gripping mechanism of the propulsion tube.

FIG. 9 is a perspective view of the extra-length cable winding device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Starting shaft 12 Starting stand 14 Reaction force receiving 16 Main pushing device 18 Propulsion tube 18A Cylindrical tube 18B Socket part 20 Truck 22 Propulsion jack 24 Cage 26 Rectangular frame 28 Lift jack 30 Belly raising material etc. 32 Chain type load support part 33 Upper part Sprockets 34 Lower sprockets 36 Link chains 38 Pipe seats 40 Chain running guides 42 Connecting shafts 44 Index mechanism 46 Cable storage brackets 48 Collection rods 50 Cables 50C Cable bending portions 52 Guide rollers 52H Roller half portions 54 Opening and closing jacks 56 Grip Arm 58 Telescopic arm 60 Clamp jack 62 Pickup plate 64 Roller 66 Guide sheave 68 Extra cable storage case 70 Cable pooling mechanism 72 Hydraulic jack (retract) 74 Sandwiching member 80 centering automatic connection apparatus

Claims (4)

[Claims] 1. A cage capable of accommodating a plurality of propulsion tubes in a plurality of stages in a plurality of stages. The cage includes a raising / lowering means capable of sending a row of housing propulsion tubes downward, and a lower propulsion tube receiving a lower propulsion tube from the elevating means. And a gripping mechanism capable of sending the cage to a launching stand, and a lifter capable of moving the cage into and out of a shaft. 2. The cage according to claim 1, further comprising a guide roller inserted into a turn-back portion of a cable routed through the plurality of propulsion pipes near the opening of the accommodated propulsion pipe. 2. A propulsion pipe supply device according to claim 1, wherein a vertical passage gap for cables and the like can be formed in the propulsion pipe. 3. The propulsion pipe supply apparatus according to claim 1, wherein said cage elevating means has an index mechanism capable of intermittently lowering by an arrangement pitch of the housing propulsion pipes. 4. The gripping mechanism abuts on the side of the propulsion pipe at four points so that the direction of the propulsion pipe can be adjusted while allowing the propulsion pipe to move from the storage position of the cage to the standby position of the starting cradle. The propulsion pipe supply device according to claim 1, wherein the contact position is made variable by independent driving means.