JPH06193386A - Direction controller of propulsion device for burying pipe body - Google Patents

Abstract

PURPOSE:To correct the direction minutely while improving the operability, and control the comformity in a propulsion device for burying pipe bodies, in which a rotatory excavating head is installed at the front end of a leading pipe, the pipe bodies for burying are arranged longitudinally in succession so as to be succeeded to the leading pipe, the rear end of the rearest pipe body for burying is engaged with the propulsion device by a propelling jack in a propelling hole, the ground is excavated by the rotatory excavating head at the front end of the leading pipe, and a longitudinally arranged pipe body group is pushed from a rear end by the propulsion device while the pipe bodies for burying are spliced successively on the propelling hole side and propelled into the ground. CONSTITUTION:A leading pipe 7 is divided into three of a front drum pipe 7a, an intermediate drum pipe 7c and a rear drum pipe 7b, and the front ends of traction members 12, 14 arranged at a proper interval in the pipe peripheral direction are bonded with the front drum pipe 7a and the intermediate drum pipe 7c. The traction members 12, 14 are positioned along succeeding pipe-body drum sections, and rear ends are connected to the rear drum pipe 7b or traction devices 13, 15 set up to sections after the pipe 7b respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a direction control device for a propulsion device for burying a pipe body for burying various pipes such as electric wires, telephone lines, water supply pipes, sewage water pipes and gas pipes. .

[0002]

2. Description of the Related Art First, an outline of a propulsion device for burying a pipe will be described with reference to FIG. In the figure, reference numeral 1 denotes a starting hole. Inside the starting hole 1, there is provided a tubular body arranging portion 3 in which delivery rollers and the like are arranged, and a sliding body 5 which is moved back and forth by a propulsion jack 4 behind the pedestal 2. The propulsion device 6 provided at the top is arranged.

On the other hand, reference numeral 7 in the drawing denotes a steel pipe front pipe having a rotary excavating head 8 at the tip thereof, and an embedding pipe body 9 such as a concrete pipe is connected to the rear thereof through a collar.

In this way, at first, only the front conduit 7 is set on the pipe disposing portion 3 of the propulsion device 6, and the driving jack 4 is driven by the propulsion jack 4 via the sliding member 5 while driving the rotary excavation head 8. Is pushed into the ground for one stroke of the propulsion jack 4.

Next, the first burying pipes 9 are connected in tandem behind the front conduit 7 and pushed in by the propulsion device 6 in the same manner. Thereafter, the second, third, ... Connect in columns and push in.

When the leading conduit 7 reaches the reaching hole (not shown), the leading conduit 7 is removed from the reaching hole side, and the propulsion device 6 is removed from the starting hole 1 to be buried in tandem. Only the pipe body 9 is left in the ground.

There are various methods of excavation and earth removal by the rotary excavating head 8, and the rotary excavating head 8 takes in the earth and sand into the inside of the tip conduit 7, and embeds it in the screw conveyor which also serves as the drive shaft of the excavating head 8. There is also a method of sending it backward through the inside of the pipe body 9, but by adopting a mud type or a mud pressure method, the rotary excavating head 8 is rotated at high speed and high torque while ejecting mud material to excavate the excavated earth and sand. It is made into a slurry and transferred along the outer circumference of the leading conduit 7.

The transferred slurry is taken in from the rear part of the front conduit 7 and pumped to the starting hole 1 by a pump.

In the tube burying propulsion device, the direction of the front conduit 7 is corrected by dividing the front conduit 7 into a front body tube 7a and a rear body tube 7b as shown in FIG. Body tube 7
The direction correcting jack 10 is disposed between the a and the rear body tube 7b in a three-point jack system, and the direction of the front body tube 7a is changed by the stroke difference of the direction correcting jack 10. In the figure
11 is a drive motor for the rotary excavating head 8, which is located in the front barrel 7a.

[0010]

In the conventional directional control device for a propulsion device for burying a tubular body using the directional correction jack 10 as described above, it is possible to say that the captain as a whole is long and the attitude control mechanism is sufficient. However, there is a time lag in responsiveness, there is a problem in operating performance, and it is difficult to maintain linearity.

The object of the present invention is to eliminate the inconvenience of the conventional example, to enable fine direction correction, to improve the operability, and to control the directional control of the propulsion device for burying a pipe body which is capable of quick response. To provide a device.

[0012]

In order to achieve the above object, the present invention provides a rotary excavating head at the tip of a leading conduit, and burying pipes for burying are successively arranged in series so as to follow the leading conduit. The rear end of the pipe is engaged with the propulsion device by the propulsion jack in the starting hole, the ground is excavated by the rotary excavating head at the tip of the leading conduit, and the pipes for burying are sequentially added in the vertical direction while being added at the side of the starting hole. In a propulsion device for burying pipes that pushes a group of pipes from the rear end with a propulsion device to propel it into the ground, the front conduit is divided into three parts, the front trunk pipe, the middle trunk pipe, and the rear trunk pipe, The tip of a traction member, which is arranged at appropriate intervals in the tube circumferential direction, is coupled to the body tube and the middle body tube, and the traction member is along the body section of the succeeding tube body, and the rear ends are provided in the rear body tube or behind it. And the traction member connected to the middle body tube is connected to the front body tube. It is an Abstract that is positioned between the towing member mutually binding.

[0013]

According to the first aspect of the present invention, when the leading conduit is going straight, if all the pulling members are tensioned by the pulling device, the front trunk tube, the middle trunk tube and the rear trunk tube are Connect in a straight pipe state and go straight.

On the other hand, in order to change the direction of the front conduit for correcting the direction, the front torso tube can be disengaged from the middle torso tube by loosening the pulling member on the opposite side to the side to be bent. Refracts against the rear torso.

According to the second aspect of the present invention, in addition to the above-mentioned action, the correction direction of the front body tube and the correction direction of the middle body tube are in a relationship of filling in each other, so that the texture is finer. The direction can be corrected.

[0016]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a vertical sectional side view showing an embodiment of a direction control device for a propulsion device for burying a pipe according to the present invention. In FIG. 1, reference numeral 7 is a front conduit shown in FIG. The entire structure of the propulsion device for burying the pipe other than the leading conduit 7 is as shown in FIG. 7, and detailed description thereof will be omitted.

In the present invention, the front conduit 7 is divided into three parts, a front body tube 7a, a middle body tube 7c and a rear body tube 7b. Of these, the front body tube 7a has a rotary drilling head 8 driven by a drive motor 11 at its tip. Further, the front body tube 7a and the middle body tube 7c, and the middle body tube 7c and the rear body tube 7b are loosely fitted to each other as shown in the drawing, or connected by a collar or the like.

The front portion of the front body tube 7a is connected to the tip of a traction member 12 made of a wire such as a PC steel wire or a flexible rod, and the traction member 12 is connected to the front body tube 7a, the middle body tube 7c and the rear body tube 7c. The rear end of the pulling member 12 is guided to the rear along the outer periphery of the body tube 7b, and the rear end of the pulling member 12 is the rear body tube 7b or the burying pipe body 9 behind it.
It was connected to the traction device 13 provided in the.

As the towing device 13, an ordinary jack, a center-hole type jack, a winch or the like can be used.

Further, the pulling member 12 is, as shown in FIG.
Four tubes are arranged in the circumferential direction of the front body tube 7a at intervals of about 90 °. According to this, four traction devices 13 are also arranged at similar intervals.

The pulling member 12 is connected to the front body tube 7a and the middle body tube 7
c. In order to extend along the outer circumference of the rear body tube 7b, a tube body 16 may be provided in the outer circumference of the rear body tube 7b in the lengthwise direction, and the tube body 16 may be inserted as a guide. Further, as another embodiment, when the body portions of the front body tube 7a, the middle body tube 7c, and the rear body tube 7b are thick, an insertion hole may be formed in the inside thereof to allow passage. The pulling member 12 is pulled inward from the middle of the rear body tube 7b.

Further, the pulling member 12 is also provided on the body of the middle body tube 7c.
A leading end of a pulling member 14 similar to the above is joined, and the pulling member 14 is arranged along the trunk portion of the middle trunk tube 7c and the subsequent rear trunk tube 7b,
The rear ends are respectively connected to the rear body tube 7b or a traction device 15 provided behind it.

The four pulling members 14 are also arranged in the circumferential direction of the middle barrel 7c at intervals of about 90 °. The pulling members 14 are arranged so as to be connected to the front barrel 7a. 12 and the traction members 12 and 14 are about 45
A total of 8 tubes are lined up in the circumferential direction at intervals of °.

Next, usage and operation will be described. When it is desired to advance the leading conduit 7 straight, all the traction members 12 and 14 are tensioned by the traction devices 13 and 15. As a result, as shown in FIG. 4, the front body tube 7a and the middle body tube 7c are drawn straight toward the rear body tube 7b as they are, and the front body tube 7a, the middle body tube 7c, and the rear body tube 7b are in a straight pipe state. Connect with and continue straight ahead.

On the other hand, in order to bend the leading conduit 7 for correcting the direction, the pulling member 12 and the pulling member 14 on the side opposite to the side to be bent may be loosened.

FIG. 5 shows such a state. For example, if the pulling member 12 located in the upper portion is loosened, only the lower pulling member 12 opposite thereto pulls, so that the front body tube 7a is opposed to the middle body tube 7c. Bend downwards. Also, the traction member 14 on the upper right
When it is loosened, only the lower left pulling member 12 on the opposite side pulls, so that the middle barrel 7c bends to the lower left with respect to the rear barrel 7b.

In this way, as shown in FIG.
You can bend to the left, right, top left, bottom left, top right, bottom right. The operations of the towing devices 13 and 15 may be input to a computer, and based on the operations, the states shown in FIGS. 4 and 5 may be displayed on the CRT screen as a monitor diagram for operation.

[0028]

As described above, in the direction control device for the propulsion device for burying a pipe of the present invention, the leading conduit is divided into a larger number than in the conventional case, and the divided one is controlled by the traction member. In addition, it is possible to finely correct the direction, improve the operability, and control the response quickly.

[Brief description of drawings]

FIG. 1 is a vertical side view showing an embodiment of a direction control device for a propulsion device for burying a pipe according to the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is a state diagram when straight ahead.

FIG. 5 is a state diagram at the time of bending.

FIG. 6 is a schematic diagram of a control.

FIG. 7 is a side view showing the outline of a propulsion device for burying a pipe body.

FIG. 8 is a perspective view showing a conventional direction control device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Launching hole 2 ... Base 3 ... Pipe arrangement part 4 ... Propulsion jack 5 ... Sliding body 6 ... Propulsion device 7 ... Front conduit 7a ... Front trunk tube 7b ... Rear trunk tube 7c ... Middle trunk tube 8 ... Rotary drilling head 9 ... Buried pipe 10 ... Direction correction jack 11 ... Drive motor 12,14 ... Traction member 13,15 ... Traction device 16 ... Pipe

Claims (2)

[Claims] 1. A rotary drilling head is provided at the tip of the leading conduit,
The embedding pipes are sequentially cascaded so as to follow the front conduit, and the rear end of the rearmost embedding pipe is engaged with the propulsion device by the propulsion jack in the starting hole, and the rotary excavating head at the tip of the front conduit is engaged. In the propulsion device for embedding pipes in which the pipe group for burying the pipes for burying the pipes in a row while sequentially adding the pipes for burying in a row is pushed from the rear end by the propulsion device and propelled into the ground, , A front body tube, a middle body tube, and a rear body tube, and the front end tube and the middle body tube are connected to the front ends of the pulling members arranged at appropriate intervals in the pipe circumferential direction, and the pulling member is connected to the rear pipe. A directional control device for a propulsion device for burying a pipe, characterized in that the rear end is connected to a rear body pipe or a traction device provided behind it along the body trunk. 2. The direction control device for a propulsion device for burying a tubular body according to claim 1, wherein the pulling member coupled to the middle barrel is positioned between the pulling members coupled to the front barrel.