JP2547389Y2 - Reader device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hitting rotary device for inserting a boring pipe into the ground, that is, a guide device for guiding a drifter, or for inserting a boring pipe in a tunnel.

[0002]

2. Description of the Related Art As is well known, various types of such leader devices are known, and in recent years, a technique of rotating a boring pipe while applying a vibration to the boring pipe and inserting the boring pipe into the ground is often used. However, a driller for inserting a boring pipe into the ground is conventionally suspended by a crane or the like, and the pipe is inserted by gravity, so that the acting force on the boring pipe cannot be controlled. For this purpose, it is conceivable to use a hydraulic cylinder, but it is not practically suitable due to the stroke. Also,
For example, when performing horizontal boring in a tunnel, it is necessary to select a leader for guiding the drifter depending on the work site. However, a hydraulic cylinder is useless to match the longest stroke. 56-
No. 77593 discloses a chain driven reader device. However, in the known technique, the stroke of the drifter is fixed, so that the stroke of the drifter cannot be changed depending on the situation at the work site.

[0003]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a reader device which can relatively easily change the stroke length of a drifter.

[0004]

According to the present invention, there is provided a reader (3) in which a main body (10) is assembled, and is movable to a guide device (11a, 11b) extending along the main body (10). In the reader device provided with the drifter (5) having the guide base (15) provided in the main body (10), the pipe-shaped main body (10) can be added or removed, and the main body (10) is provided on both sides of the main body (10). A pair of pipe-shaped guide members (13a, 13b) extending parallel to the stay member (1).
4) and fixed to the guide base (1) of the drifter (5).
5), the guide cells (16a, 16b) are fixed by bolts (B) so as to sandwich the guide members (13a, 13b), and a hydraulic motor (M) driven above and below the main body (10), respectively. Drive wheel (18) and idler wheel (1)
9) and their wheels (18, 19)
, A link type chain (W) is suspended, and the chain (W) is engaged with an attachment (25) attached to a guide base (15) via a bracket.

[0005]

Therefore, when the hydraulic motor is driven, the drive wheel rotates and the chain moves, so that the attachment of the guide base engaged with the chain travels together with the chain, so that the drifter operates. Thus, for example, a boring operation can be performed.

When the stroke is changed, the main body is added or removed. If the bolt is loosened and the guide cell is removed, the drifter can be easily removed from the leader. It is also easy to install. The chain link may then be added or removed to fit the stroke.

[0007] Since the mounting and dismounting of the drifter is thus simple, the adjustment of the chain length and the addition and removal of the main part can be easily performed on site. Therefore, according to the present invention, it is possible to obtain a reader device suitable for various sites.

[0008]

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

FIG. 1 shows an example of a boring device embodying the present invention. A leader 3 is rotatably connected to a tip end of a boom 2 extending from a working vehicle 1 via a suspension device 4. As will be described later, a drifter 5 for inserting the boring pipe P into the ground is provided movably on the leader 3 while being guided by the leader 3. In the figure, reference numeral 6 denotes a work hook. The above all belong to the prior art.

In the present invention, a chain W for controlling the movement of the drifter 5 is provided as described later.

2 to 6 show a reader device embodying the present invention. The reader 3 is shown in FIGS. 1, 2, 5,
As shown in FIG. 6, a pipe-shaped main body 10,
A guide device 1 provided to face the main body 10 in the diameter direction.
1a, 11b, and a ladder 12. The guide devices 11a, 11b each include a pair of pipe-shaped guide members 13a, 13b extending parallel to the main body 10 and the guide members 13a, 13b. It is composed of a main body 10 and a stay member 14 for fixing to each other. By providing the guide devices 11a and 11b on both sides in this way, the drifter 5 can be set on either side. The leader is divided into a certain length and can be assembled.

The drifter 5 is fixed to a guide base 15 as shown in FIG. 2, and the guide members 13a, 13b are connected by guide cells 16a, 16b mounted on both sides of the guide base 15 with bolts B. As shown in FIG. 5, the lifter 5 is movable along the guide members 13a and 13b.

As the driving means 12 for moving the drifter 5 in this manner, a chain W (two in the illustrated example) is used, and the chain W is driven by a hydraulic motor M (see FIG. 3) provided at the upper end of the reader 3. It is supposed to be. A drive wheel 18 is mounted on the rotating shaft of the hydraulic motor M, and a floating wheel 19 is provided near a lower end of the reader 3 via a tension device 20. By pulling the chain W, a predetermined tension can be given to the chain W. The chain W is hung over both wheels 18 and 19, and one (forward) travels outside the stay 14 and the other (reverse) travels inside the main body 10 as shown. I have. Accordingly, chain guides 22 and 23 are provided outside the stay 14 and inside the main body 10 respectively. As described above, since the chain W passes through the outside of the main body and enters the inside of the main body, the main body 10 is cut off at the floating wheel 19.

Under the guide base 15 to which the drifter 5 is fixed, an attachment 25 is provided via a bracket 24,
25 is attached to engage with the chain W. Therefore, the position of the drifter 5 can be controlled by the traveling of the chain W.

The boring pipe P is supported and centered by a support device 30 mounted near the tip of the main body 10 so as to be mounted on the drifter 5. This support device 30
Is composed of appropriate brackets as shown in FIGS.

Therefore, in operation, the hydraulic motor M
Is rotated, the drive wheel 18 rotates, and the chain W runs. As a result, the drifter 5 moves, so that the force applied to the boring pipe P can be controlled.

When the length of the reader 3 is changed, if the link of the chain W is disconnected and a new chain is added or the chain is removed, it is possible to easily adapt to the change in the length of the reader.

[0018]

[Effects of the Invention] As described above, according to the present invention, the following excellent effects can be obtained. (A) Since the guide cells on both sides of the guide base are attached by bolts, if the bolts are removed, the drifter can be easily removed from the reader. (B) As a result, it is easy to add and remove the chain and further add and remove the chain. (C) It is possible to easily obtain a leader device suitable for on-site work and having a stroke corresponding to the on-site work. (D) Drifters can be attached to both sides of the reader.

[0019]

[0020]

[0021]

[0022]

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a use state of a reader device embodying the present invention.

FIG. 2 is a side view showing a partial cross section of the reader device embodying the present invention.

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a view taken in the direction of arrows AA in FIG. 2;

FIG. 5 is a sectional view taken along line BB of FIG. 2;

FIG. 6 is an enlarged view of an X part of FIG. 2;

FIG. 7 is a view taken along line CC of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Work vehicle 2 ... Boom 3 ... Leader 5 ... Drifter 10 ... Main part 11a, 11b ... Guide device 13a, 13b ... Guide member 14 ... Stay 15. ··· Guide bases 16a, 16b ··· Guide cell 18 ··· Drive wheel 19 ··· Idle wheel 20 ··· Tension device 21 ··· Nut W ··· Chen P ···· Boring pipe

Claims (1)

(57) [Scope of request for utility model registration] A reader (3) assembled with a main body (10).
And a guide device (11a, 11b) extending along the main portion (10), and a guide device (11) provided with a drifter (5) having a guide base (15). 10) can be added or removed, and the main body (1) is provided on both sides of the main body (10).
0) and a pair of pipe-shaped guide members (13a,
13b) is fixed by a stay member (14), and a guide member (13a,
13b) with guide bolts (16) with bolts (B).
a, 16b) are fixed, and drive wheels (1) driven by a hydraulic motor (M) are respectively provided above and below the main body (10).
8) and an idler wheel (19) are attached, and the wheels (18, 19) have a link type chain (W).
The chain (W) is attached to an attachment (2) attached to the guide base (15) via a bracket.
5) The reader device, which is engaged with the reader device.