JP3050523B2 - Rotary reaction force removal device for tubing 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 rotary reaction force removing device for a tubing device which takes in a rotational reaction force of a tubing device which extrudes a pile hole by pushing a casing tube while rotating the tube.

[0002]

2. Description of the Related Art Conventionally, in order to take a rotational reaction force of a tubing device, first, as shown in FIGS.
And the tubing device 1 is placed so as to straddle the iron plates 200 and 202. Then, the tubing device 1 is set in parallel with the tubing device 1 from both sides.
The pair of arm members 204 to 207 are projected horizontally.

[0003] Spike members 208 and 210 are placed between the arm members 204 to 207, and the spike members 208 and 210 are placed.
210, weights 212 lifted by a crane,
214 is dropped, and the spike members 208 and 210 are driven into the ground. After the spike members 208 and 210 are driven into the ground, the weights 212 and 214 are placed on the arm members 204 to 207, and the rotational reaction force of the tubing device 1 is clamped by the arm members 204 to 207. Received by

[0004] The pushing reaction force is controlled by the arm members 204 to 20.
7 on the weights 212 and 214. Then, the horizontal jacks 216 and 218 (only some of them are shown) are adjusted so that the tubing device 1 is level.

[0005]

However, in such a conventional device, when the ground is soft ground such as sandy ground, the spike members 208 and 210 cannot take a sufficient rotational reaction force, and the spike members 208 , 210
Moves while scratching the ground, and the tubing device 1
There was a problem that might be swung around.

An object of the present invention is to provide a rotary reaction force removing device for a tubing device which can sufficiently take a rotational reaction force even on soft ground.

[0007]

In order to achieve the object, the present invention takes the following means to solve the problem. That is, in the rotational reaction force take-up device for a tubing system that takes the rotational reaction force of the tubing device drilling a pile hole is pushed while rotating the casing tube, said Chubi
Weight attached to the base frame of the
And a reaction frame member connected to the connection frame , and a guide portion of a pile member inserted into a through hole formed in a substantially vertical direction is formed on the reaction frame member. Then, the pile member is driven into the ground to take a rotational reaction force, which is a rotational reaction force removing device for a tubing device.

Moreover, co-when the guide portion is Ru is formed into a cylindrical shape
In addition, the guide portion may fall down when the pile member is inserted.
It may be configured so that it can be supported at any height.
Alternatively, both base frames of the tubing device
Attach the connecting frame to the side
The reaction force removing member may be connected. Further, the through-hole may be rectangular, and the pile member may be made of H-shaped steel. Moreover, a plurality of the through holes may be provided.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. As shown in FIG. 1, reference numeral 1 denotes a tubing device. The tubing device 1 includes a plurality of wedge-shaped chuck members 3 arranged at equal intervals on an outer periphery of a casing tube 2. Are suspended via a link 6 which is pivotally supported. The rotating ring 4 has a bearing 10 on the upper frame 8.
The upper frame 8 and the elevating frame 12 are connected by a plurality of chuck cylinders 14.

A rotating body 18 into which the casing tube 2 can be inserted together with the outer peripheral chuck member 3 is mounted on the lifting frame 12.
Are rotatably supported via bearings 20. The rotating body 18 has a tapered surface 24 corresponding to the tapered surface 22 formed on the back surface of the chuck member 3. The rotating body 18 is configured to be rotationally driven by a hydraulic motor 36 fixed to the lifting frame 12.

As shown in FIG. 2, first guide cylinders 42 are arranged and fixed at four corners of the lifting frame 12 through the lifting frame 12 in parallel with the casing tube 2. A cylindrical guide member 45 attached to the lower surface of the upper frame 8 is slidably fitted on the outer periphery of the first guide cylinder 42 projecting above the elevating frame 12.

The outer circumference of a second guide cylinder 46 erected on a base frame 56 is slidably fitted into the inner circumference of the first guide cylinder 42.
The head side of the cylinder 50 is fixed to the upper end of the cylinder 50. The second guide cylinder 46 includes a rod 52 of a cylinder 50.
Are connected via a pin 54. Base frame 5
6, four horizontal jacks 58 (only some of which are shown) are mounted coaxially with the second guide cylinder 46, so that the horizontal of the base frame 56 can be adjusted.

As shown in FIG. 1, rectangular connecting frames 60 and 62 are attached to both sides of the base frame 56 so as to horizontally project from the base frame 56 to the left and right. The coupling frames 60 and 62 include a reaction force removing member 6.
4 and 66 are connected by pins 72 inserted into joints 68 to 70 (only some of which are shown). This connection
The connection frames 60 and 62 and the reaction force removing members 64 and 66 need only be connected so as to prevent relative rotation.

The reaction force removing members 64 and 66 are formed with cylindrical guide portions 74 and 76, respectively, and penetrate the guide portions 74 and 76 and vertically penetrate through holes 78 (only one is shown). Is formed. The through hole 78 is formed in a rectangular shape in the present embodiment, and as shown in FIG.
It is large enough to insert the pile members 80 and 82 using the shape steel,
In addition, the guide portions 74 and 76 are provided with the pile members 80 and
When the pile members 80, 82 are inserted, the pile members 80, 82 are not fallen down. Further, after the pile members 80, 82 are driven, when the rotation reaction force is applied, the pile members 80, 82 are supported without falling down. It is formed at the height.

The pile members 80 and 82 may be made of an H-shaped steel as it is. Alternatively, when the H-shaped steel is not used as it is, and there is a swarf or the like on the ground, as shown in FIG. A sharpened and hardened tip member 86 is attached to the tip of the section steel 84, and a striking plate 88 is attached to the rear end.
May be used.

Next, the operation of the above-described rotary reaction force removing device for a tubing device of this embodiment will be described. First,
As shown in FIG. 1, the tubing device 1 is installed at the center of the pile construction site, and the connection frames 60 and 62 are connected to the base frame 56.
Attach to The connection frames 60, 62 and the reaction force removing members 64, 66 are connected by pins 72, and the pile members 80, 82 lifted by a crane or the like (not shown) are inserted into the through holes 78. After the insertion, even if the wire hung on the pile members 80, 82 is removed, the pile members 80, 82 are supported by the guide portions 74, 76 and do not fall. And the pile members 80 and 82
By dropping the weight. At that time, the pile member 8
Since 0 and 82 are guided by the guide portions 74 and 76, the pile members 80 and 82 are driven vertically into the ground without falling down.

The length and the driving depth of the pile members 80 and 82 may be determined according to the strength of the ground. When the ground is soft ground such as sand ground, the long pile members 80, 82
It is better to type deeply. Further, the length and the driving depth may be changed according to the ground.

Next, the weights 92 and 94 lifted by a crane or the like are placed on the connecting frames 60 and 62, and the installation is completed.
You.

When excavating a pile hole, first, the casing tube 2 is inserted, and the chuck cylinder 14 is driven. Thereby, the guide member 45 slides along the first guide cylinder 42, the upper frame 8 is pulled down, and the chuck member 3 rotates with the outer periphery of the casing tube 2 via the bearing 10, the rotating ring 4, and the link 6. It is inserted between the tapered surface 24 of the body 18. The tapered surface 22 of the chuck member 3 slides along the tapered surface 24 so that the plurality of chuck members 3 grip the outer periphery of the casing tube 2.

Next, the rotary motor 18 is rotated by rotating the hydraulic motor 36, and the chuck mechanism 2 is rotated together with the rotary body 18.
The casing tube 2 gripped by 6 is rotated. Further, the cylinder 50 is driven to the contraction side, and the first guide cylinder 42 slides on the outer periphery of the second guide cylinder 46, and
The elevating frame 12 is lowered together with the guide cylinder 42. Thus, the casing tube 2 is pushed into the ground while rotating, and excavation is performed by a not-shown excavation bit at the tip of the casing tube 2.

At this time, the rotational reaction force of the casing tube 2 acts on the base frame 56 via the lifting frame 12, the first guide cylinder 42, and the second guide cylinder 46. The reaction force acting on the base frame 56 acts on the pile members 80 and 82 via the connection frames 60 and 62 and the reaction force removing members 64 and 66,
The rotation of the tubing device 1 is prevented. At this time, the height of the guide portions 74 and 76 of the reaction force removing members 64 and 66
The pile members 80 and 82 are supported without falling. Also,
The pushing reaction force of the casing tube 2 is
6, the weights 92, 94 on the connecting frames 60, 62
Received by

Incidentally, instead of the above-described reaction force removing members 64 and 66, a reaction force removing member 96 as shown in FIG. 4 may be used. The reaction force removing member 96 has two guide portions 98, 1
00 are formed so that the pile members 80 and 82 can be inserted into the two guide portions 98 and 100, respectively. This makes it possible to take a rotational reaction force even on softer ground.

As described above, the rotary reaction force removing device for a tubing device of the present embodiment can sufficiently take a rotation reaction force even on soft ground such as sandy ground, and can adjust the driving depth. Can respond to various types of ground. Further, by using the H-shaped steel for the pile members 80 and 82, the cross-sectional area thereof is small, so that the pile members 80 and 82 can be driven with a small resistance, and the H-shaped steel can be used as it is, so that the structure becomes simple and the pile members 80 and 82 can be used. If it is damaged, it can be easily replaced and inexpensive.

As described above, the present invention is not limited to such an embodiment, and can be implemented in various modes without departing from the gist of the present invention.

[0025]

As described in detail above, the rotary reaction force removing device for a tubing device according to the present invention can sufficiently take a rotation reaction force even on soft ground such as sand ground, and adjusts the driving depth. By doing so, it is possible to cope with various types of ground. Further, by using the H-shaped steel for the pile member, the cross-sectional area thereof is small, so that the pile member can be driven with a small resistance, and the shape steel such as the H-shaped steel can be used as it is, so that the structure becomes simple and the pile member is damaged. It can be easily replaced in case.

[Brief description of the drawings]

FIG. 1 is a perspective view of a rotary reaction force removing device for a tubing device as one embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a main part of the tubing device of the present embodiment.

FIG. 3 is a perspective view of a pile member as another embodiment.

FIG. 4 is a perspective view of a reaction force removing member as another embodiment.

FIG. 5 is a front view of a conventional rotary reaction force removing device for a tubing device.

FIG. 6 is a plan view of a conventional rotary reaction force removing device for a tubing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Tubing apparatus 2 ... Casing tube 56 ... Base frame 60, 62 ... Connection frame 64, 66, 96 ... Reaction force removing member 74, 76, 98 ... Guide part 78 ... Through hole 80, 82, 90 ... Pile member 92, 94 ... weight

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) E21B 7/20 E21B 3/025 E02D 11/00

Claims (6)

(57) [Claims] 1. A rotary reaction force removing device for a tubing device, which takes in a rotation reaction force of a tubing device for excavating a pile hole by pushing a casing tube while rotating the casing tube, the tubing device being attached to a base frame of the tubing device.
A connection frame on which the weight is placed;
Comprising a reaction force up member connected to, and, a guide portion of the stake member which is inserted into a through hole formed in the substantially vertical direction is formed in the reaction force up member, by implanting the stake member to the ground A rotary reaction force removing device for a tubing device, which takes a rotation reaction force. Wherein said guide portion is formed into a cylindrical shape Rutotomoni,
The guide does not fall when the pile member is inserted.
2. The rotary reaction force removing device for a tubing device according to claim 1, wherein the rotating reaction force removing device is formed at a height which can be supported well . 3. The base frame of the tubing device.
Mounting frames on both sides of the
3. The rotary reaction force removing device for a tubing device according to claim 1, wherein the reaction force removing members are connected to each other . 4. A rotary reaction force removing device for a tubing device according to claim 1, wherein said through hole is rectangular. 5. The rotary reaction force removing device for a tubing device according to claim 1, wherein the pile member is an H-shaped steel. 6. The rotary reaction force removing device for a tubing device according to claim 1, wherein a plurality of said through holes are provided.