JP2569746Y2 - Propulsion tube winding drum device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention provides a drum which can be wound around an outer peripheral portion of a propulsion pipe connected to bendable in the longitudinal direction and is rotatable around a vertical rotation axis. The present invention relates to a propulsion pipe winding drum device in which a plurality of hooks for locking the propulsion pipe are provided along a circumferential direction.

[0002]

2. Description of the Related Art Heretofore, as a propulsion tube winding drum device of this type, there has been a device in which a rack-shaped hanging portion is provided, and the propulsion tube is mounted on the hanging portion.

[0003]

Most of the propulsion bodies wound around this type of propulsion tube winding drum device have a large number of cylindrical propulsion tubes connected in the longitudinal direction, and the propulsion direction is provided at the tip thereof. A propulsion drive head having a leading conductor that moves back and forth along the pipe axis and rotates around the pipe axis is provided continuously, and a hydraulic hose and the like for driving the propulsion drive head over the connected propulsion pipe are provided. In order to wind around the outer peripheral surface of the propulsion tube winding drum device, the propulsion tubes are disjoined and bent at the hydraulic hose portion exposed at the joint. It is relatively loosely wound in the upright state.

According to the above-described conventional propulsion tube winding drum device, since the propulsion tube is hung on a mounted state, the propulsion tube winding drum is mounted on the propulsion tube winding drum device, for example. When the device is in the inclined position, the wound propulsion pipe is shifted to the lower side in the inclination direction as a whole, and there is a problem that the propulsion pipe easily slips off from the hooking part on the lower side in the inclination direction.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to solve the above-mentioned problems and to provide a propulsion tube winding drum device in which a wound propulsion tube is hard to slip off from a hook portion even when inclined.

[0006]

In order to achieve the above object, the characteristic structure of the propulsion tube winding drum device in the present invention is as follows.
A propulsion pipe, which is connected to a plurality of hooks provided on an outer peripheral portion of a drum rotatable around a vertical rotation axis and is connected in a freely bendable manner in a longitudinal direction, moves outward from the drum. The movement preventing member for preventing the movement is provided detachably over the entire length of the drum.

The movement preventing member may be a metal pipe extending over the entire length of the drum, and the metal pipe may be attached to the drum so as to be slidable along the longitudinal direction and swingable up and down. Good.

[0008]

According to the characteristic structure of the propulsion tube winding drum device of the present invention, it is bent in the longitudinal direction hooked on a plurality of hooks provided on the outer peripheral portion of the drum rotatable around the vertical rotation axis. A movement preventing member for preventing the propulsion pipe, which is freely connected, from moving outward from the drum is provided detachably over the entire length of the drum. Therefore, the movement preventing member is attached to the drum. In the state, the propulsion tube wound around the drum is prevented from moving outward from the drum by the movement preventing member.For example, the propulsion tube winding drum device is inclined or the propulsion tube winding drum device Even if vibration is applied or a force for moving the propulsion tube outward from the drum acts on the propulsion tube, the hooking state of the hooking portion is maintained without slipping. Further, in a state where the movement preventing member is detached from the drum, the propulsion tube is hung (or released) from the hook of the drum, and the winding (or unwinding) operation is free. Can be performed. Then, it is possible to easily switch the operation state and the non-operation state of the above-described movement preventing member at the site.

If the movement preventing member is a metal pipe extending over the entire length of the drum, and the metal pipe is attached to the drum so as to be slidable along the longitudinal direction and swingable up and down, The switching operation from the working state to the non-working state of the movement preventing member can be compactly stored along the upper surface of the drum by sliding the metal pipe upward and swinging vertically, for example. The operation can be performed with a simple operation without lowering the usability of the winding drum device. Furthermore,
Since the movement preventing member is not removed from the drum every time the switching operation is performed, it is possible to prevent the movement preventing member from being lost on site.

[0010]

Therefore, according to the propulsion tube winding drum device of the present invention, the propulsion tube wound around the drum can be prevented from coming off the hook portion and slipping down even if the device is inclined. In addition, the operability is improved because it is possible to easily switch between such a "slipping prevention state" and an "operating state" in which the propulsion pipe can be normally wound or fed out.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

FIG. 5 shows a state in which the propulsion body 1 is underground-propelled by a propulsion facility A for a propulsion method having a horizontal take-up drum D which is an example of a propulsion tube take-up drum device according to the present invention. Is shown.

This propulsion facility A for a propulsion method comprises a horizontal take-up drum D, which is configured to take up and store the propulsion body 1 composed of a plurality of propulsion pipes 2 which are continuously connected to bend in the longitudinal direction.
And a propulsion device 3 which presses while holding the propulsion body 1 fed from the winding drum D to propell the same into the soil.

The propulsion body 1 will be described. A plurality of propulsion pipes 2 (see FIG. 4) connected in a longitudinally bendable manner via a spherical ball joint J, and a tip of the propulsion pipe 2 for drilling an underground hole. A plurality of hydraulic hoses 5 for driving the propulsion drive head 4 and a liquid supply hose 6 for supplying lubricating material in the inner space. -A long body T such as a measuring cable 7 is installed. Further, the propulsion pipe 2 is provided with a connection portion 2a for detachably connecting adjacent propulsion pipes 2 between the ball joint J and the ball joint J. In a state where the propulsion pipes 2 are connected, two propulsion pipes 2 connected by the connection section 2a are combined into one propulsion pipe unit, and the connection sections 2a between adjacent propulsion pipe units are separated from each other. The propulsion body 1 is bent at the portion of the long body T exposed to 2a.

The take-up drum D is mounted and fixed on a crawler 8 (see FIG. 5). The crawler 8 rotates the tip of the propulsion drive head 4 in addition to the take-up drum D. A first hydraulic unit 9 for causing the propulsion body 1 to protrude and retract, and a lubrication unit 10 capable of agitating and sending a lubrication material for reducing friction with soil caused by the propulsion of the propulsion body 1 are mounted.

The propulsion device 3 is constructed so as to be able to grip and hold the propulsion body 1 and to be driven back and forth in the direction of propulsion, and is installed in a pit H for underground propulsion. Also, a second hydraulic unit 1 for holding and moving the propulsion device 3 is provided.
1, and a centralized operation panel 12 for driving and operating the propulsion device 3 and the winding drum D is separate from the crawler 8 having the winding drum D disposed on the upper side of the pit H. Is mounted on the crawler 13. The crawler 13 is formed so that the propulsion device 3 can be mounted, for example, when preparing (or removing) the construction.

The details of the winding drum D will be described below. As shown in FIGS. 1, 2 and 4, the propulsion body 1 can be wound and housed in an outer peripheral portion, and can be rotated vertically. Shaft core P
A rotatable drum 14 is provided around the base, and a base 15 for rotatably supporting the drum 14 around the vertical rotation axis P is provided. A rotary joint 1 rotatably pivoting around and connecting the propulsion body 1 wound around the drum 14 to a fluid flow passage on the first hydraulic unit 9 side.
6 is provided between the drum 14 and the base 15, and a rotary drive device 17 for rotating the drum 14 is provided.

The drum 14 is provided with a substantially square tubular frame 18 formed of an angle member or the like.
A plurality of wheels 18a are provided along the circumferential direction at the lower end of the cylindrical frame 18, and the propulsion body 1 is helically mounted around the vertical rotation axis P along the outer peripheral surface of the frame 18. A plurality of shelves 18b (an example of a hooking portion) that can be hooked on the state are provided on the frame 18, and an attachment portion 18c for detachably attaching the frame 18 to the rotary joint 16 is provided. I have. Therefore, the drum 14 is rotatable around the vertical rotation axis P by the plurality of wheels 18 a with respect to an annular rail 19 which is an example of a drum supporting receiving portion provided on the base 15. It is supported by. A base end portion of the propulsion body 1 is attached to the lowermost portion of the outer periphery of the frame body 18, and the propelling body 1 is mounted inside the propulsion body 1 from the propulsion body 1 to the inside of the frame body 18. The hydraulic hose 5, the liquid supply hose 6, and the cable 7 are inserted.
The propulsion body 1 whose base end is attached to the frame body 18 is wound up in a state of being spirally arranged upward around the longitudinal rotation axis P over the respective shelf portions 18b, and has a distal end. The side leads to the propulsion device 3.

At the upper and lower ends of the outer peripheral surface of the frame 18, the propelling body 1 is wound around each shelf 18b of the drum 14, as shown in the figure. The propulsion body 1 is located outside the drum 14
The metal pipe 24, which is an example of a movement preventing member for preventing movement from the outside, is provided with a locking portion 25 for detachably attaching the metal pipe 24 over the entire length of the drum 14. The locking portion 25 includes a first locking portion 25a provided at an upper end portion of the frame body 18 and a second locking portion 25b provided at a lower end portion.
The propulsion unit 1 is also provided at an intermediate portion between the upper side and the lower side of the outer peripheral surface of the frame body 18 and by locking both ends of the metal pipe 24 to both locking portions 25a and 25b.
Is prevented from moving out of the shelf 18b and falling off. As shown in FIG. 3, the first locking portion 25 a is provided with a first holding portion 26 having an insertion hole S through which the metal pipe 24 can be inserted, and the first holding portion 26 is attached to the frame 18. A first attachment portion 27 for attachment to the camera is provided. The first mounting portion 27 is fixed to the frame body 18, and the first holding portion 26 is pivotally connected to the first mounting portion 27, and the metal pipe inserted through the insertion hole S is provided. The frame 24 is formed so as to be vertically swingable with respect to the frame 18. Further, it is needless to say that the metal pipe 24 can be slid along the longitudinal direction in a state of being inserted through the insertion hole S. In addition, a rubber ring for suppressing rattling of the inserted metal pipe 24 is fitted in the insertion hole S. The second locking portion 25b is connected to the metal pipe 2
4 is a tubular portion 28 which can be fitted inside, and the tubular portion 28 is
8 and a second mounting portion 29 attached to the cylindrical portion 2.
8, a bolt 30 for pressing and fixing the metal pipe 24 in the fitted state from the side is provided in a freely rotatable manner. On the upper surface of the frame 18, the metal pipe 24 inserted into the first locking portion 25 a is slid upward and swung so as to be in a horizontal posture. A third locking portion 25c for fixing the second locking portion 25c is formed. The third locking portion 25c is formed in an inverted “Ω” shape in a cross-sectional view (see FIG. 1) and has a spring property.
Can be fixed in a state in which one end side is engaged along the radial direction.

As shown in FIGS. 1 and 2, the base 15 is formed of an angle member or the like, similarly to the drum 14, and has a first support portion 15a for mounting and supporting the rotary joint 16. The rotation drive device 17
And a base main body 15c to which the annular rail 19 for rotatably supporting the wheel 18a of the drum 14 is provided integrally. Further, the base main body 15c serving as a base of the base 15 is fixed to the crawler 8, and a rotation driving device 17 is movably attached to the second support portion 15b. A rotary joint 16 is attached to one support portion 15a in a state where the axis is aligned with the vertical rotation axis P.

The rotary joint 16 is composed of a fitted cylindrical inner cylinder member 16a and an outer cylinder member 16b. The two cylinder members 16a and 16b are relatively rotatable around a cylinder axis. The first support portion 1 of the base 15 is fitted in a state in which the cylinder shaft is aligned with the vertical rotation axis P while the cylinder is not sliding relative to the axis of the cylinder.
5a and the mounting portion 18c of the drum 14 are installed vertically. Further, a plurality of closed flow passages are provided between the two cylindrical members 16a and 16b to connect and connect the fluid flow path connected to the inner cylindrical member 16a and the fluid flow path connected to the outer cylindrical member 16b. I have. The outer cylinder member 16b
In the state, the plurality of hydraulic hoses 5 and the liquid feeding hoses 6 inserted into the frame 18 from the base end of the propulsion body 1 are detachably attached to each other, and communicate with the closed flow path. The inner cylinder member 16a is provided with a flow path that communicates with the first hydraulic unit 9 and the lubrication unit 10, respectively.
Each of the closed flow paths is connected in a freely communicable state.

The inner cylinder member 16a is provided with a flange-shaped first flange portion 20 at the lower end thereof, and the rotary joint 16 is attached to the first support portion 15a by the first flange portion 20. Further, a rod-shaped body B having one end attached to the base 15 is disposed in the inner space of the inner cylindrical member 16a, and around the rod-shaped body B, a measuring instrument (not shown) is used. The cable 7 is spirally wound upward from the base 15 side, and is detachably connected to the cable 7 inserted into the frame 18 from the base end of the propulsion body 1.

On the other hand, the outer cylindrical member 16b is provided with a flange-shaped second flange portion 21 at an upper end portion. The second flange portion 21 has a plurality of bolt screw holes for mounting the drum 14. 21a is provided. A driven gear 22 that receives the rotational driving force of the rotation driving device 17 and rotates the outer cylindrical member 16b around the vertical rotation axis P is fitted along the outer peripheral surface of the outer cylindrical member 16b. The rotation driving device 17 is rotationally driven, so that a force is transmitted from the driving gear portion 17a provided in the rotation driving device 17 to the driven gear 22,
The outer cylinder member 16b is formed so as to be rotatable around the vertical rotation axis P. The driven gear 22
And the drive gear portion 17a constitute a transmission mechanism U.

The mounting portion 18c provided on the drum 14
And the second flange portion 21 provided on the rotary joint 16, the vertical movement of the drum 14 with respect to the rotary joint 16 is allowed.
A coupling mechanism R for transmitting the rotational force around the vertical rotation axis P to the drum 14 is provided. The connection mechanism R includes:
The base end portion is inserted into a plurality of through holes provided in the mounting portion 18c so as to be relatively movable along an axial direction along the longitudinal rotation axis P, and the distal end portion is inserted into each of the bolt screw holes. 21a, a rotational force is transmitted from the mounting bolt 23 to the drum 14 with the rotation of the outer cylinder member 16b, and the drum 14 is rotated vertically. With respect to the vertical movement accompanying the rotation of the drum 14, the through-hole and the mounting bolt 23 are slidable. Is formed so that the weight is hardly transmitted and excessive addition does not act. Also, by removing the mounting bolt 23, the drum 14 can be easily separated from the base 15.

According to the horizontal winding drum D of this embodiment,
During the propulsion operation, the metal pipe 24 can be used for the propulsion operation with the metal pipe 24 fixed to the upper surface of the frame body 18, while the winding drum is inclined, for example, when the winding drum D is mounted on a vehicle. In such a case, the metal pipe 24
The propulsion body 1 can be maintained in a state in which the propulsion body 1 does not slip down from the shelf 18b by swinging the propulsion body 1 in the vertical posture and sliding it downward to lock the first and second locking portions.

[Another Embodiment] Another embodiment will be described below. <1> The movement preventing member 24 is not limited to the metal pipe described in the previous embodiment, but may be a pipe formed of a resin or the like as long as it has a suitable strength other than metal. And it may be formed in a shape other than a pipe.

<2> The drum 14 is not limited to the substantially square shape in a plan view described in the previous embodiment. For example, the drum 14 may be formed in another polygonal shape, and further, in a circular or elliptical shape. It may be formed.

[0028] In the claims of the utility model registration, reference numerals are written for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is a sectional side view showing a propulsion tube winding drum device of an embodiment.

FIG. 2 is a top view illustrating a propulsion tube winding drum device according to the embodiment.

FIG. 3 is a cross-sectional view showing a mounting state of a metal pipe.

FIG. 4 is an exploded top view sectional view showing a propulsion pipe winding drum device according to an embodiment.

FIG. 5 is a cross-sectional view showing the state of propulsion.

[Explanation of symbols]

 2 Propulsion pipe 14 Drum 18b Hanging part 24 Movement prevention member P Vertical rotation axis

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Kazunori Tsujimoto 1-1-1, Hama, Amagasaki-shi, Hyogo Prefecture Inside Kubota Technology Development Laboratory Co., Ltd. (72) Kokichi Yamada 1-1-1, Hama, Amagasaki-shi, Hyogo Company Kubota Technology Development Laboratory

Claims (2)

(57) [Scope of request for utility model registration] A drum (14) rotatably wound around an outer peripheral portion of a propulsion pipe (2) continuously connected to bend in the longitudinal direction and rotatable around a vertical rotation axis (P); Drum (1
4) A propulsion pipe winding drum device, wherein a plurality of hooks (18b) for hooking the propulsion pipe (2) are provided along the circumferential direction on an outer peripheral portion of the plurality of hooks. The movement preventing member (24) for preventing the propulsion pipe (2) hung on the (18b) from moving outward from the drum (14) is replaced by the drum (14).
The propulsion tube winding drum device is provided detachably over the entire length of the drum. 2. The movement preventing member (24) is a metal pipe extending over the entire length of the drum (14), and the metal pipe is slidable along a longitudinal direction and swingable up and down. The propulsion tube winding drum device according to claim 1, which is attached to (14).