JP2930864B2 - Sediment rig for pneumatic caisson - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pneumatic system in which an excavator and a power supply device in a work room below a caisson and an information device in an operation room outside the caisson are connected by using a combined power / communication cabtire cable. The present invention relates to a caisson earth and sand excavator.

[0002]

2. Description of the Related Art Generally, communication lines are protected by electromagnetic induction.
When a certain distance is required from the power line and the power line cannot be separated at any one point, communication is performed over the entire line in the following manner in order to protect communication data. (1) By wireless communication. (2) By optical communication.

[0003] In a conventional earth and sand excavator for a pneumatic caisson, a power line connecting an excavator movably installed in a work room below the caisson skeleton and a power supply device provided outside the caisson skeleton is provided. Since it is necessary to separate the communication line connecting the excavator and the information equipment provided in the operation room outside the caisson skeleton as described above, in many cases, the excavator is separately wired and power is supplied to the excavator, Or sending communication information.

[0004]

By the way, there is a problem that electromagnetic induction and reflection / interference of a radio wave occur in a case where a conventional communication line and a power line cannot be separated from each other and a wireless communication is used. Further, in the case of using optical communication, there are problems that not only the equipment becomes expensive but also that maintenance and management are difficult. Furthermore, if the power line that supplies power to the pneumatic caisson excavator and the communication line that transmits communication information are laid independently, the wiring becomes complicated, and many parts and man-hours are required for the wiring work. There is a problem to be solved.

[0005] The present invention has been made in view of the above points, and an object of the present invention is to provide a method for transmitting a large amount of power to a power line even when it is impossible to keep a separation between the power line and the communication line. Power and communication combined cabtire cables, which can transmit information accurately and quickly, and can perform wiring simply, and can perform wiring work with a small number of parts and man-hours, in the work room below the caisson frame. Set to be movable
One of the above excavators from the outside of the caisson body
Accurate power and large amounts of communication information through composite cables
To quickly and accurately control the excavator remotely.
To provide earth and sand excavation equipment for humaic caisson
is there.

[0006]

According to the present invention, a movable excavator 34 is installed in a work room 28 below a caisson frame 25, and a recovery lock 32 for recovering the excavator 34 in a state where the excavator 34 is operated remotely. The working room 28 of the caisson frame 25
And a power supply 36 for supplying power to the excavator 34 outside the caisson skeleton, and an information device for transmitting control information to the excavator 34 in an operation room 37 outside the caisson skeleton 25, And a power line in which at least the outer periphery of the power supply line 3 is covered with an electric insulator, and a communication line twisted pair cable 5 in which the outer periphery of the communication conductor is covered with an electric insulator and a blocking material that blocks reflection and interference of electromagnetic induction and radio waves. The excavator 34 and the power supply 3 are connected by a power / communication combined captire cable 1 in which the coaxial cable 13 as another communication line and the power ground for the excavator are integrated.
6. A composite cable expansion / contraction device 47 for connecting the excavator 34 and the information equipment in the operation room 37, and for feeding and winding the power / communication composite cabtire cable 1;
The composite cable expansion / contraction device 47
Cable pulley guide 49 fixed to the inner wall of the vehicle, a constant pulley row 52 formed of a plurality of sheaves, and a constant pulley row 5
2 is provided with tension adjusting means 54 comprising a pulley train 53 formed by the same number of sheaves and a double bell for applying an appropriate tension to the power / communication combined cabtire cable 1. Have achieved.

[0007]

According to the power / communication combined cabtire cable of the present invention, at least the power line having the outer periphery of the power supply line covered with an electric insulator and the outer periphery of the communication conductor intercept the electromagnetic induction and reflection / interference of radio waves with the electric insulator. Since the communication line covered with the shielding material is integrated, even when it is impossible to keep a separation between the communication line and the power line, the power and a large amount of communication information can be accurately and quickly transmitted. Can be transmitted. Furthermore, since the power line and the communication line are combined and integrated into one, the wiring can be performed simply and the wiring work can be performed with a small number of parts and man-hours.

[0008] In pneumatic caisson for soil drilling apparatus of the present invention, the working chamber of the lower portion of the caisson skeleton,
A movable excavator is installed, and the excavator is connected to the power supply device, the excavator and information equipment such as a computer in an operation room outside the caisson frame by the power / communication combined cabtire cable according to the present invention. Therefore, electric power and a large amount of communication information such as control information and monitoring information can be transmitted to the excavator in the work room from outside the caisson frame through a single composite cable. Remote control becomes possible.

Further, in the earth and sand excavator for a pneumatic caisson of the present invention, a composite cable expansion and contraction device combined with a pulley is mounted inside the caisson frame or the inside of the recovery shaft, and a power / communication composite cab is attached to the composite cable expansion and contraction device. since it spanned the middle of the tire cables, corresponding to the amount of movement of the excavator and decremental proper length power and communication composite flexible cable, and suited to the cable
Positive tension can be applied. Furthermore, in the earth and sand excavator for a pneumatic caisson of the present invention, the composite cable expansion and contraction device is provided with a function of adjusting the tension of the power / communication combined cabtire cable, so that the power / communication combined cabtire cable is always appropriate. It can be used with tension applied and neatly wound around the composite cable expansion and contraction device.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a longitudinal sectional view showing one embodiment of a power / communication combined cabtire cable used in the present invention , and FIG.
Is an enlarged longitudinal sectional view of a power cabtire cable portion which is a power line, FIG. 3 is an enlarged longitudinal sectional view of a twisted pair cable portion which is a communication line, and FIG. 4 is an enlarged longitudinal sectional view of a coaxial cable portion which is another communication line. It is.

The combined power and communication cabtire cable 1 shown in FIG. 1 includes a power cabtire cable 2 as a power line, a twisted pair cable 5 as a communication line, and a coaxial cable 13 as another communication line. The ground wire 20 is integrally formed by an inclusion 21 and a holding tape 22, and the outer periphery thereof is coated with an insulating coating 23.

As shown in FIG. 2, the power cabtire cable 2 is formed of a power supply line 3 and an electric insulator 4 coated on the outside thereof. The power line 3
Is formed of, for example, a soft copper stranded wire. The electrical insulator 4 is formed of an insulating material such as a synthetic resin or rubber.

As shown in FIG. 3, the twisted pair cable 5 is composed of two communication conductors 6 covered and stranded by an insulator 7 and an intervening member interposed around these two conductors 6. 8, an outer conductor 9 mounted on the outer circumference of the inclusion 8, a sheath material 10 mounted on the outer circumference of the outer conductor 9, a shielding material 11 mounted on the outer circumference of the sheath material 10, The shield member 11 is further provided with a sheath member 12 attached to the outer periphery. The communication conductor 6 is made of, for example, soft copper suitable for transmitting a control signal. The insulator 7 and the sheath members 10 and 12 are formed of, for example, a synthetic resin material such as vinyl or rubber. The outer conductor 9 is formed, for example, by a copper braid. The shielding member 11 is made of, for example, an iron braid or a copper braid in order to make use of the characteristics of the cabtire cable, and protects communication information from electromagnetic induction and reflection / interference of radio waves.

As shown in FIG. 4, the coaxial cable 13 includes an internal communication conductor 14, an insulator 15 mounted on the outer periphery of the communication conductor 14, an outer conductor 16 mounted on the outer periphery of the insulator 15, An insulator 17 attached to the outer periphery of the outer conductor 16 and a shielding member 18 applied to the outer periphery of the insulator 17
And the insulator 1 attached to the outer periphery of the shielding member 18.
9. The communication conductor 14 is made of, for example, soft copper suitable for transmitting a video signal. The insulators 15, 17, and 19 are formed of synthetic resin, rubber, or the like. The outer conductor 16 is formed by a copper braid or the like. The shielding member 18 is formed of an iron braid, a copper braid, or the like in order to make use of the characteristics of the cabtire cable, and protects a video signal and the like from electromagnetic induction, reflection and interference of radio waves.

The ground wire 20 is formed, for example, by covering a soft copper stranded wire with an insulator, similarly to a normal ground wire.

The power cabtire cable 2, twisted pair cable 5, coaxial cable 13 and ground wire 20
For example, an ebon string is used for the inclusion 21 that summarizes the above.

The holding tape 22 is a vinyl tape or the like, and is wound around the outer periphery of the inclusion 21 and bundled.

As the insulating coating 23, a soft vinyl sheath, a rubber sheath or the like is used. This insulating coating 23 is mounted on the outermost periphery of the integrated body of the power cabtire cable 2, the twisted pair cable 5, the coaxial cable 13, and the ground wire 20 and finished.

In the composite power / communication cabtire cable 1 configured as described above, the three power cabtire cables 2, which are power lines in which the outer periphery of the power supply line 3 is covered with the electric insulator 4, and the conductor 6 are connected to each other. By covering with an insulator 7, an inclusion 8, an outer conductor 9, and a sealing material 10 and covering with an iron braid or a copper braid shielding material 11, the characteristics of the cabtire cable are utilized, and the electromagnetic induction and radio wave reflection / reflection. Two twisted pair cables 5, which are communication lines that protect communication information from interference and are further covered with a sheath material 12,
The inner conductor 14 is made of an insulator 15, an outer conductor 16, and an insulator 17
In addition to utilizing the characteristics of the cabtire cable by covering with a shielding member 18 of an iron braid or a copper braid, the communication information is protected from electromagnetic induction and reflection / interference of a radio wave, and further covered with an insulator 19. Two coaxial cables 13 as other communication lines and one ground line 2
0 is integrated by the inclusion 21 and the holding tape 22 and the outer periphery thereof is covered with the insulating coating 23. Therefore, even when the power line and the communication line cannot be separated from each other, Power and a large amount of communication information can be transmitted accurately and quickly. Further, by using the combined power / communication cabtire cable 1 according to this embodiment, wiring can be performed simply, and wiring can be performed with a small number of parts and man-hours.

Next, FIG. 5 is a conceptual showing an embodiment of a pneumatic caisson for soil drilling apparatus of the present invention using the above power and communication composite flexible cable, and FIG. 6 is automatically feeding the same composite cable -It is a perspective view showing an example of a compound cable expansion and contraction device which winds up.

The earth and sand excavator for a pneumatic caisson shown in FIG.
Excavator 34, power supply device 36 and operation room 37 provided outside caisson frame 25, and shaft 3 mounted inside caisson frame 25 in this embodiment.
Composite cable expansion and contraction device 47 mounted inside 2
Is connected to a joint box 46 provided on the shaft 32, and the middle thereof is
7 and the power connected to the excavator 34
Communication composite cabtire cable 1 and power supply device 36
A power cabtyre cable 44 connecting the joint box 46 to the personal computer 40, which is an information device in the operation room 37, and a twisted pair cable 44 connecting the joint box 46 to the joint box 46.
And a coaxial cable 45 connecting the monitor TV 42 and the joint box 46 therein.

The caisson frame 25 of the pneumatic caisson is formed in a rectangular tube or a cylindrical shape. At the lower part of the caisson frame 25, a working chamber 28 is formed which is surrounded by a blade opening 26 and a slab 27. Compressed air is sent into the working chamber 28 and is maintained at a predetermined pressurized state. The slab 27 has a slab opening 2
9 are formed.

The slab opening 29 has a hatch container 3
The lower part of 0 is connected. A hatch 31 is provided inside the hatch container 30. Also, hatch container 3
A cylindrical shaft 32 functioning as an excavator storage container is connected to the upper part of the zero. The shaft 32 is successively extended with the sinking of the caisson body 25. Further, a lock device (not shown) is provided on an upper portion of the shaft 32.

On the other hand, traveling rails 33a and 33b for an excavator are fixed to the lower surface of the slab 27. A portion corresponding to the slab opening 29 of each of the traveling rails 33a and 33b is notched, and a separately installed connecting rail (not shown) moves to this portion and is connected in a ring shape. It has become.

The excavator 34 includes the traveling rail 33
a, 33b movably supported. This excavator 3
Numeral 4 is remotely operated according to control information from information equipment in the operation room 37 to excavate the ground G.
Further, a monitor camera 35 for an excavator is provided in the work room 28.
Is installed.

The power supply 36 supplies power to the excavator 34 through the power cabtire cable 43, the joint box 46 and the power / communication combined cabtire cable 1.

In the operation room 37, a driver's seat 38 on which an operator of the excavator 34 sits, a control desk 39, a personal computer 40 as information equipment, a printer 41 as an output device of the same, And a monitor television 42 which is a monitoring device for use. The personal computer 40 transmits control information, which is communication information, to the excavator 34 through the twisted pair cable 44, the joint box 46, and the combined power / communication cabtire cable 1. A video signal as communication information is transmitted to the monitor television 42 from the monitor camera 35 installed in the work room 28 through the power / communication combined cabtire cable 1, the joint box 46, and the coaxial cable 45. .

As shown in FIGS. 5 and 6, a cable pulley guide 49, a constant pulley row 52 formed of a plurality of sheaves, and the same number of sheaves as the constant pulley row 52, as shown in FIGS. And a moving pulley row 53 formed of

The cable pulley guide 49 is formed of two members which are arranged facing each other at a predetermined interval. The shaft 32 is arranged long in the length direction, and is fixed inside the shaft 32 via a support member 48.

The fixed pulley row 52 is rotatably mounted on a support shaft 50, and is fixed at a position above the cable pulley guide 49 via the support shaft 50.

The moving pulley row 53 is rotatably attached to the support shaft 51, and can be moved in the length direction of the cable pulley guide 49 via the support shaft 51, that is, in the vertical direction.

The fixed pulley row 52 and the moving pulley row 53 include:
The power / communication composite cabtire cable 1 is bridged halfway, and one end of the power / communication composite cabtire cable 1 is connected to a joint box 46,
The other end is hung on a vertical pulley 55 attached to the slab opening 29 and a water leveler 56 attached to the lower surface of the slab 27 and then tied to the excavator 34. As a result, when the other end of the power / communication combined cabtire cable 1 is pulled with the movement of the excavator 34, the pulley train 53 rises by that amount and the length required for the movement of the excavator 34 is increased. When the power / communication combined cabtire cable 1 is unwound and the other end is loosened, the moving pulley line 53 descends by its own weight, and the power / communication combined cabtire cable 1 is wound up, and the slack is removed. It is designed to be absorbed.

The tension adjusting means 54 is formed by a weight suspended from and supported by the support shaft 51 of the moving pulley row 53.
The tension adjusting means 54 actively lowers the pulley train 53 to apply an appropriate tension to the power / communication combined cabtire cable 1. The tension adjusting means 54 may be constituted by a tension spring, or may be of a structure in which the tension roller is pressed by a compression spring.

In the earth and sand excavator for a pneumatic caisson constructed as described above, a power cabtyre cable 43, a power cab tire cable 43, and a power source 36 provided outside the caisson frame 25 are connected to an excavator 34 installed in the work room 28. Electric power is supplied through the joint box 46 and the power / communication combined cabtire cable 1, and the twisted pair cable 44, the joint box 46 and the power / communication are supplied from the personal computer 40 installed in the operation room 37 provided outside the caisson frame 25. Composite cabtire cable 1
The excavator 34 is remotely operated by transmitting control information through the excavator 34. Thereby, the excavator 34 moves freely along the traveling rails 33a and 33b, operates according to the control information, and excavates the ground G. Excavator 3
Monitor camera 35 installed in the work room 28
Monitor the excavator 34 by transmitting the video signal to the monitor television 42 in the operation room 37 through the power / communication combined cabtire cable 1, the joint box 46, and the coaxial cable 45, and projecting the video signal on the monitor television 42. can do.

As the excavator 34 moves, the power
When the communication composite cabtire cable 1 is pulled, the moving pulley row 53 of the composite cable expansion / contraction device 47 rises, whereby the power / communication composite cabtire cable 1 is extended to a required length. Conversely, when the power / communication combined cabtire cable 1 is loosened, the moving pulley row 53 descends, winding up the power / communication combined cabtire cable 1 and absorbing the slack. Further, the power / communication combined cabtire cable 1 is always maintained at an appropriate tension by the action of the tension adjusting means 54.

Further, in this embodiment, since the power / communication combined cabtire cable 1 configured as described above is used, in addition to the power for driving the excavator 34,
A large amount of communication information can be transmitted accurately and quickly, wiring can be simplified, and wiring can be performed with a small number of parts and man-hours.

[0038]

As described above, according to the present invention ,
That the power line coated with an electrical insulator to the outer periphery of at least the power line by the power and communication composite flexible cable, the outer periphery of the coating by a shielding member for blocking the electrical insulator and the electromagnetic induction and radio waves reflection and interference of the communication conductors The advantage is that even if it is not possible to keep a separation between the power line and the communication line, the power and a large amount of communication information can be transmitted accurately and quickly. Yes, also has the advantage that may briefly perform wiring, moreover an advantage capable of performing wiring work in small parts and man-hours.

Further, in pneumatic caisson for soil drilling apparatus of the present invention, the working chamber of the lower portion of the caisson skeleton,
The excavator is installed movably, and the excavator and the power supply unit, the excavator and the information equipment in the operation room outside the caisson frame are connected to a power line with at least the outer periphery of the power line covered with an electrical insulator, and a communication conductor. The outer circumference of the work chamber is connected by the above-mentioned power / communication combined cabtire cable, which integrates the communication line covered with an electrical insulator and a shielding material that blocks electromagnetic induction and reflection / interference of radio waves. Excavator,
As a result of transmitting a large amount of communication information such as power, control information and monitoring information from outside the caisson body through one composite cable, the excavator can be remotely controlled accurately.

In addition, since the composite cable expansion / contraction device and the tension adjusting means are combined with pulleys for feeding and winding the power / communication composite cabtire cable, appropriate tension can be applied to the cable and workability is improved. And

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of a power / communication combined cabtire cable of the present invention.

FIG. 2 is an enlarged vertical sectional view of a power cabtire cable portion which is a power line.

FIG. 3 is an enlarged longitudinal sectional view of a twisted pair cable portion that is a communication line.

FIG. 4 is an enlarged longitudinal sectional view of a coaxial cable portion as another communication line.

FIG. 5 is a conceptual diagram showing an embodiment of the earth and sand excavator for a pneumatic caisson of the present invention using a combined power / communication cabtire cable.

FIG. 6 is a perspective view showing an example of a composite cable expansion / contraction device for automatically feeding and winding the composite cable.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Power / communication combined cabtire cable 2 Power cabtire cable 3 Power line 4 Electrical insulator 5 Twisted pair cable as a communication line 6 Communication conductor 7 Insulator 8 Inclusion 9 External conductor 10 Sheath material 11 Shielding material 12 Sheath material 13 Coaxial Cable as Other Communication Line 14 Communication Conductor 15 Insulator 16 Outer Conductor 17 Insulator 18 Shielding Material 19 Insulator 20 Ground Wire 21 Inclusion 22 Suppression Tape 23 Outer Insulation Coating 25 Caisson Body 26 Blade Portion 27 Slab 28 Work room 29 Slab opening 30 Hatch container 31 Hatch 32 Shaft 33a, 33b Running rail 34 Excavator 35 Monitor camera 36 Power supply 37 Operation room 38 Driver's seat 39 Control desk 40 Personal computer 41 as a communication device 41 Printer 42 Monitor TV 43 Power cabtire cable 44 Twisted pair cable 46 Joint box 47 Composite cable expansion / contraction device 48 Support member 49 Cable pulley guide 50, 51 Support shaft 52 Constant pulley row 53 Moving pulley row 54 Tension adjusting means

Continuation of the front page (56) References JP-A-4-64621 (JP, A) JP-A-2-126513 (JP, A) JP-A-61-171010 (JP, A) JP-A-2-223109 (JP) , A) JP-A-58-79419 (JP, A) JP-A-59-172915 (JP, A) JP-A-56-156301 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB Name) H01B 7/00 310 E02D 23/04 H02G 11/00

Claims (1)

(57) [Claims] 1. A work chamber 28 below a caisson frame 25.
In addition, a movable excavator 34 is installed, a recovery lock 32 for recovering the excavator 34 in a state where the excavator 34 is operated remotely is provided above the work chamber 28 of the caisson frame 25, and the excavator 34 is provided outside the caisson frame. Power supply 3 for supplying power to
6 and an information device for transmitting control information to the excavator 34 in the operation room 37 outside the caisson body 25, and a power line having at least the outer periphery of the power supply line 3 covered with an electrical insulator; The communication line twisted pair cable 5 whose outer periphery is covered with an electric insulator and a shielding material that blocks reflection and interference of electromagnetic induction and radio waves, a coaxial cable 13 as another communication line, and a power ground for an excavator. The excavator 34 and the power supply device 36, the excavator 34 and the operation room 3 are integrated by the integrated power / communication combined captire cable 1.
7 and a composite cable expansion / contraction device 47 for feeding and winding the power / communication composite cabtire cable 1, and the composite cable expansion / contraction device 47 is fixed to the inner wall of the recovery lock 32. Cable pulley guide 49, a constant pulley row 52 formed by a plurality of sheaves, and a moving pulley row 53 formed by the same number of sheaves as the constant pulley row 52, and the combined power / communication cab An earth and sand excavator for a pneumatic caisson, comprising a tension adjusting means 54 comprising a double bell for applying an appropriate tension to the tire cable 1.