JP2664978B2 - Auger feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a fluid pipe such as a gas pipe or a water pipe buried underground, or a pipe for accommodating a power line, an optical or electric signal line, a power line, or the like. The present invention relates to a device for supplying an auger for augment to a rotary chuck device in an auger-type lateral hole excavator for excavating a lateral hole having a relatively small diameter, such as a lateral hole for constructing a hole or a lateral hole for discharging water.

(Prior Art) The present inventors have developed a side-hole excavator capable of excavating the above-described underground pipe horizontal hole without excavating a groove in a road or the like. This side-hole excavator reciprocates a rotary drive having a rotary chuck device for gripping an auger on a guide frame, and performs excavation while extending an auger having a screw blade in a screw type with reciprocation. It is.

In such a conventional side-hole excavator, when the auger is extended and lowered along the vertical hole, the elevating device such as a winch is operated each time one auger is extended. Then, the auger is lifted to the ground, and the auger is gripped by the rotary chuck device of the rotary drive device, lowered to the bottom of the vertical hole, and the auger rotation, forward extension and excavation operation are performed. Also, a side-hole excavator is installed at the bottom of a groove excavated along a road or the like, and those in which an operator enters the groove and operates the side-hole excavator are placed in the groove or on the ground. The augers were taken one by one and held by the rotary chuck device.

(Problems to be Solved by the Invention) As described above, in the conventional side-hole excavator, when the auger is extended, the side-hole excavator is lifted or carried from another place of the side-hole excavator. And there is a problem that it takes time to add the auger.

(Means for Solving the Problems) In order to solve the above problems, the auger supply device according to the first invention of the present application grasps an extended auger by a rotary chuck device provided in a rotation drive device of the auger. In a device for reciprocating the rotary drive device on a guide frame and excavating a lateral hole while extending an auger, an auger container for stacking and receiving augers in the lateral hole excavating device is moved up and down by an elevating device. The auger housing is provided with a locking device for elastically locking the auger housed in the auger housing at an opening at the lower end of the auger housing.

Further, the auger supply device according to the second invention of the present application is characterized in that the locking device is provided with unlocking operation means for unlocking the lowermost auger.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings, taking an example of an up-and-down type horizontal hole excavator. 1 to 4 show an embodiment of a lateral hole excavator according to the first invention of the present application. 1
Is a vertical hole excavated to a depth at which an underground pipe is to be buried, 2 is a casing fitted into the vertical hole 1, and 3 is a horizontal hole excavator mounted in the casing 2 so as to be able to move up and down. Casing 2
, A guide rail 5 having a triangular cross section is provided in the longitudinal direction so as to face each other, and above and below the left and right column portions of the support frame 6 constituting the horizontal hole excavator 3, along the guide rail 5. A guide roller 7 is provided for rolling. A guide frame 8 is attached to the lower part of the support frame 6 so that the inclination angle can be adjusted (the inclination angle adjustment mechanism is not shown).

The guide frame 8 has an opening 2 a provided in the casing 2.
2 (see FIG. 2), parallel guide rails 9 are fixedly mounted. The rotation driving device 11 of the auger 10 has two guide rollers 12 attached to the left and right sides thereof along the guide rails 9. By being rotatably engaged with the guide frame 8, it is movably disposed on the guide frame 8. The rotary drive
11 has a rotary chuck device 13 for gripping the tail end 10a of the auger 10 at the front, and a hydraulic motor for rotating the auger 10.
With 14.

As shown in FIG. 1, a traverse hydraulic motor 15 for reciprocating the rotary drive device 11 is provided on a side portion of the rotary drive device 11, and is attached to an output shaft of the traverse hydraulic motor 15. The pinion 16 is engaged with a rack 17 provided in parallel with the guide rail 9, and the rotary drive device 11 reciprocates by forward and reverse rotation of the hydraulic motor 15.

Reference numeral 18 denotes a container for the auger 10, and the auger container 10 is
It is attached to the guide frame 8 or the support frame 6 to which the guide frame 8 is attached as shown. The auger container 18
As shown in FIG. 3, two vertically long plate members 19, 19 each having a U-shaped horizontal cross-sectional shape are integrated by welding a U-shaped coupling bracket 20. The large-diameter portion of the auger 10, that is, the screw blade portion, is accommodated therebetween, and has a structure in which the tip 10 b and the tail end 10 a project from between the plate members 19, 19 to accommodate a plurality of augers 10 in a stacked manner.
At the lower end opening of the auger container 18, each shaft 21, 2
The auger locking plates 22, 22 are attached to be openable and closable so as to be openable and closable about 1.
It is urged in the closing direction by 3,23. As a means for elastically locking the auger 10, a spring plate may be used as the locking plate 2.

Guide rails 24, 24 each having a triangular cross section may be fixed in the longitudinal direction on both sides of the auger container 18, and the grooved guide rollers 25 provided on the left and right sides of the horizontal portion 6a of the support frame 6 are respectively guided by the guide rails. The auger support 18 is attached to the support frame 6 so as to be able to move up and down by rollingly engaging with the rails 24.

The elevating device of the auger support 18 of the present embodiment is a rotary driving device that is moved up and down in conjunction with the reciprocation of the rotary driving device 11.
It is configured as a rope linking device with 11. That is, as shown in FIG. 2, a rope having one end connected to the guide frame 8 is attached to a sheave 27 attached to a side surface of the rotary drive device 11,
A sheave 28 mounted on the guide frame 8; a sheave 30 mounted on a hydraulic unit 29 (containing switching valves such as hydraulic motors 14, 15) fixed to the horizontal portion 6a of the support frame 6; When the rotary drive device 11 is in the retracted position as shown in FIG. 2 by hanging (32) the end on the sheave 31 attached to 6a and attaching it to the auger container 18 as shown in FIG. Is provided on the horizontal portion of the support frame 6.
When the rotary drive device 11 is moved forward as shown in FIG. 4, the auger container 18 is raised so as not to hinder the advance of the rotary drive device 11 as shown in FIG. .

1, 2, and 4, reference numeral 34 denotes the lowermost end of the auger container 18 when gripping the auger 10 so that the axis of the auger 10 and the axis of the rotary chuck device 13 match. An auger receiving device for positioning the auger 10, and the auger receiving device 34 is a duct fixed to the lower surface of the rotary drive device 11.
39, two long and short plate members 35, 36 are slidably fitted so that the longer plate member 35 is below the shorter plate member 36, and a semicircular auger receiver is attached to each front end of these plate members 35. Tools 37 and 38 are provided, locking portions a and b for locking to the rear end of the duct 39 are provided at the rear end, and stoppers 40 and 41 are provided before and after the guide frame 8.

The operation and operation of this device will be described. For example, in a state where the horizontal hole drilling device 3 is pulled up to the ground via the rope 42 by a lifting winch (not shown) mounted on the casing 2, the rotation driving device 11 is finally turned on. In the retracted position, a plurality of augers 10 are stacked and accommodated in the auger container 18. At this time, the lowermost auger 10 housed in the auger housing 18 rides on the auger receivers 37 and 38, and the locking member 33 provided on the auger housing 18 contacts the horizontal portion 6a of the support frame 6. Touched and supported. Next, by operating the elevating winch, the horizontal hole drilling device 3 is landed on the bottom of the vertical hole 1 as shown in the drawing, or provided on the stopper (not shown) provided in the casing 2 on the horizontal hole drilling device 3. Lower until the locking block (not shown) abuts. Then, by operating the traversing hydraulic motor 15, the rotation driving device
11 is slightly advanced, and the rotating chuck device 13 is closed to grip the tail end 10a of the auger 10 at the lowermost end. In addition,
When holding the auger 10, the rope 26 supporting the auger container 11 is slightly moved as shown in FIG. 2 when the rotary drive device 11 is at the rearmost position so that the auger container 18 does not rise. It is configured to be in a relaxed state. When the rotary drive device 11 is advanced while the auger 10 is held by the rotary chuck device 13 in this manner, the auger container 18 is moved by the rope 26 at a moving speed of the rotary drive device 11 of two times.
It is pulled up at double speed and retracts upward from the forward path of the rotary drive device 11. At this time, since the lowermost auger 10 is strongly gripped by the rotary chuck device 13, it is not lifted together with the auger container 18, but is held by the rotary chuck device 13 against the force of the compression spring 23. It comes off from the locking plate 22. FIG. 4 shows a state where the auger container 18 is pulled up to the highest position at the same time that the rotary drive device 11 moves to the frontmost position, and the rotary drive device when the tail end 10a of the auger 10 is gripped by the rotary chuck device 13. With respect to the distance L from the position 11 to the front end position, the ascending distance of the auger housing 18 is 2L.

If the auger 10 at the lowermost end is the most advanced auger for excavation, excavation is performed by causing the rotation of the auger 10 by the rotation hydraulic motor 14 and the advance of the auger 10 by the traverse hydraulic motor 15 to be performed simultaneously. On the other hand, when the lowermost auger 10 is the extension auger, the following auger 10 held by the rotary chuck device 13 with the female screw at the tail end 10a of the preceding auger 10 is used.
The male screw at the tip of is screwed and added to perform excavation.

When the auger is pulled out, the auger container 18 is pulled up to the ground, or locked with a pin or the like in the pulled up state. The withdrawal of the auger 10 is performed by pulling out the auger 10 gripped by the rotary chuck device 13 until the rotary drive device 11 reaches the last retracted position, and then fixing the tail end of the auger 10 directly connected to the auger 10. It is held by a chuck device (not shown), the screw is released by reversing the rotary chuck device, the horizontal hole drilling device 3 is pulled up to the ground, the auger 10 is removed from the rotary chuck device 13 on the ground, and the horizontal hole drilling is performed. The device 3 is lowered again to perform the same operation as described above.

The operation of the auger receiving device 34 is performed when the rotary drive device 11 is at the rearmost position as shown in FIG.
The rear end locking portions a and b abut against the rear stopper 41 to prevent retreat, receive the auger 10 in a state where the auger receiving members 37 and 38 are widened, and advance the rotary drive device 11 to The receiving members 37 and 38 are pushed by the rotary drive device 11, and finally the movement is prevented by the front stopper 40 as shown in FIG. With such an operation, the auger receiving device
34 are working effectively. The auger container 18
Therefore, if the lowermost auger 10 can be positioned, the auger receiving device 34 is not necessarily required.

Also, as shown in FIGS. 1 and 2, a string 43 or the like connected to the locking plate 22 is provided, and when the string 43 is pulled from the ground, the restraint of the auger 10 by the locking plate 22 is released and the lowermost end is formed. Of the auger 10 may fall on the receiving members 37 and 38. Such a string 4
When attaching 3 or the like, the locking member 33 is attached to the horizontal portion 6 of the support frame 6.
In the state of contact with a, the lowermost auger 10 and the receiving member 37,
38 so that a gap is formed between them.

FIGS. 5 and 6 show an embodiment of the second invention of the present application, in which a dedicated lifting device is provided as a device for lifting and lowering the auger container 18. In this example, the lifting device is Hydraulic motor 45 attached to the horizontal portion 6a of the support frame 6
And a pinion 46 attached to the output shaft, and the pinion 46
And a rack 47 fixed vertically to the side surface of the auger container 18 so as to mesh with the rack. As an elevating device for the auger container 18, a winch or chain type device, a cylinder, or the like may be used.

In this embodiment, instead of the compression spring 23, a locking plate is provided by a hydraulic (or pneumatic or electric) cylinder 48.
22 is opened and closed. The structure for opening and closing the locking plate 22 by the cylinder 48 can also be adopted in the structure of the embodiment shown in FIGS.

The operation of each of the above devices is performed by an operator operating an operating device installed on the casing 2 or the like while looking at the devices in the casing.
Operate while watching the TV receiver on the ground using a light or a TV camera.

The present invention can also be applied to a horizontal hole excavator that is installed in a vertical hole or a ditch such as an existing manhole or the like in a standing or elevating manner, or a device that automatically adds an auger for excavation.

(Effects of the Invention) As described above, in the present invention, the auger container for stacking and mounting the augers is mounted on the guide frame or the frame on which the guide frame is mounted so as to be raised and lowered by the lifting device. A locking device for preventing the auger from dropping is provided at the lower end opening of the auger container, and the locking device is configured to resiliently lock the auger, or an unlocking operation for unlocking the auger. Because of the provision of the means, it is not necessary to raise and lower the side hole drilling device or carry the auger from another place of the side hole drilling device when adding the auger, and it is not necessary to add the auger. In addition, the side hole excavation work can be performed efficiently.

[Brief description of the drawings]

FIG. 1 is a front view of a lateral hole excavator showing one embodiment of an auger supply device according to the first invention, FIG. 2 is a side sectional view of the embodiment, FIG. 3 is a plan view of FIG. The figure is a side sectional view showing a state where the auger container is pulled up in the embodiment.
FIG. 5 is a side view of a side hole excavator showing one embodiment of the second invention, and FIG. 6 is a front view showing a part of FIG.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takenori Uchida 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Toshiyuki Nakanishi 5-1-1 Hiranocho, Higashi-ku, Osaka-shi, Osaka Osaka Within Gas Co., Ltd. (72) Inventor Shigeo Muroya 5-1-1, Hirano-cho, Higashi-ku, Osaka-shi, Osaka Within Osaka Gas Co., Ltd. (72) Inventor Takeo Iida 650, Kandamachi, Tsuchiura-shi, Ibaraki Pref.

Claims (2)

(57) [Claims] 1. An apparatus for gripping an extended auger by a rotary chuck device provided in a rotary drive device of an auger, reciprocating the rotary drive device on a guide frame, and excavating a lateral hole while extending the auger. An auger container for stacking and storing augers is mounted on the side hole excavator so as to be lifted and lowered by an elevating device, and the auger stored in the auger container is resiliently mounted at a lower end opening of the auger container. An auger supply device provided with a locking device for temporarily locking. 2. A device for gripping an extended auger by a rotary chuck device provided in a rotary drive device of an auger, reciprocating the rotary drive device on a guide frame, and excavating a lateral hole while extending the auger. An auger container for stacking and storing augers is mounted on the lateral hole excavating device so as to be lifted and lowered by an elevating device, and the auger stored in the auger container is locked in a lower end opening of the auger container. An auger supply device comprising: a locking device; and a locking release operating means for unlocking the lowermost auger.