JPS6312219Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is used in the all-casing method of excavating equipment such as pile holes, in which the casing is forced into the soil and the earth and sand inside the casing is transported to another location on the ground using a bucket or other excavation means. It is related to the device.

Conventionally, the press-in device for the steel pipe casing was the only device used in such an all-casing construction method, and the lifting operation of the earth removal bucket had to be carried out using a separate crane or the like.

The purpose of this invention is to eliminate the disadvantages of the above conventional example,
The purpose of the present invention is to provide a highly safe excavating device that can rationalize the construction work since the all-casing method can be carried out with only one device.

However, according to the present invention, the purpose of this lever is to provide a first turntable on a machine frame having tracks or wheels, and use a rotating portion of the first turntable to attach a base frame having a press-fitting device such as a casing in front. A second turntable is provided on the base frame, and an auxiliary frame is provided with a lifting boom that can be raised and lowered to suspend excavation means such as a bucket.
This is achieved by supporting the rotating part of the turntable.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a side view showing an embodiment of the excavation device of the present invention, and FIG. 2 is a plan view of the same.

In the figure, 1 is a machine frame provided with a crawler track 2, which is a moving mechanism. Instead of the crawler belt 2, wheels having tire tubes may be attached to the machine frame 1 as a moving mechanism. A base frame 4 is rotatably installed on the machine frame 1 via a first turntable 3 provided approximately at the center of the machine frame 1. In the figure, reference numerals 5 and 5' indicate fixing jacks provided at the front and rear of the base frame 4, and 6 indicates a counterweight also provided at the rear of the base frame 4.

A leader mast 8 which can be raised and lowered freely by a jack 7 is attached to the front of the base frame 4, and a rotary press-fitting machine 9 for a casing tube 10 is installed on the leader mast 8 so as to be able to move up and down.

In the figure, 11 is a curved bracket that connects the rotary press-fitting machine 9 and the leader mast 8, and 12 is an adjustment cylinder whose one end is suspended from the leader mast 8, which provides a lock during excavation alignment and movement. Reference numeral 13 designates a rotating chuck portion that fixes and rotates the entire side circumference of the casing tube 10, 14 a cylinder for pulling out the casing tube 10, and 15 a hydraulic unit connected to various jacks, winches, and cylinders. Incidentally, the casing tube 10 is a steel pipe tube normally used for Benoto piles, and has a cutting edge 10a at the front end.

An auxiliary frame 17 is rotatably mounted on the base frame 4 via a second turntable 16.

Figure 3 shows the first and second turntables 3 and 16.
, which shows the outer rings 3a and 16a and the inner rings 3b and 16b that are mutually bearing-connected, and the hydraulic motor 3 provided on the outer rings 3a and 16a.
The drive gears 3d and 16d of c and 16c are connected to the inner wheel 3.
b, 16b are meshed with the gear portion on the inner periphery. Note that if the axes of these turntables 3 and 16 are aligned with each other as shown in the figure, the stability of the entire apparatus of the present invention can be obtained.

In another embodiment, the axis of the second turntable 16 is shifted to the rear of the axis of the first turntable 3, and a storage place for the leader mast 8, which is folded down when not in use, is provided in front of the base frame 4. It may also be provided.

A hanging boom 18 is provided on an auxiliary frame 17 so as to be able to rise and fall freely, and an excavation bucket 19 is suspended from the tip of the lifting boom 18. The excavation bucket 19 is large enough to be inserted through the upper opening of the casing tube 10, and its tip opens and closes like a bird's beak, but other excavation means such as a grab bucket or an earth drilling bucket can be used as a boom. It may be hung from 18.

There is also an excavation bucket 19 on the auxiliary frame 17.
A drive winch 20, a cylinder 21 for raising and lowering the boom 18, a hose reel 22 for winding hydraulic hoses, electric cables, etc., and a counterweight 23 are provided. It is desirable that the winch 20 and hose reel 22 be linked.

Next, the usage and effect will be explained. In order to move the entire device, it is sufficient to drive the crawler belt 2, and once the crawler track 2 is in a predetermined position, the base frame 4 is appropriately rotated with respect to the machine frame 1 using the turntable 3, and the casing tube is set in the rotary press-fitting machine 9. 1
Align the cutting edge 10a of No. 0 with the planned excavation position. Further, the base frame 4 extends the jacks 5, 5' and firmly fixes it on the ground.

If the rotary chuck 13 of the press-fitting machine 9 is moved to rotate the casing tube 10, the cutting edge 1
0a excavates the ground, and the tubes 10 are sequentially inserted into the ground. At the same time, the hanging boom 18 is appropriately tilted, and the suspended excavation bucket 19 is inserted from the upper end opening surface of the tube 10, and the excavated earth and sand in the tube 10 is carried out to another location.

The lateral movement of the excavation bucket 19 is achieved by rotating the auxiliary frame 17 on the base frame 4 using the turntable 16.

Furthermore, when the casing tube 10 is inserted into the ground and the curved bracket of the rotary press-fitting machine 9 has descended to the lower end of the leader mast 8, the rotary chuck part 13 is unlocked and the press-fitting machine 9 is moved upward. All you have to do is pull it up and check the side of the tube 10 again. Once all the initial casing tubes 10 have been embedded in this way, new tubes are added to the upper ends. Note that in order to pull out the tube 10, the press-fitting machine 9 may be raised using the jack 14 while the chuck portion 13 is fixed.

As described above, the excavation equipment of the present invention can be used when carrying out the all-casing construction method in which the casing is press-fitted into the soil and the earth and sand inside the casing is carried out using excavation means such as a bucket, instead of using a conventional separate crane device. The lifting operation of excavation means such as a bucket can now be carried out using a machine equipped with a rotary casing press-in machine.As a result, there is no need to operate two types of construction vehicles, and construction work can be streamlined safely and reliably. It is something.

[Brief explanation of drawings]

FIG. 1 is a side view showing an embodiment of the excavation device of the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a longitudinal sectional side view of the turntable portion. 1... Machine frame, 2... Track, 3, 16... Turntable, 3a, 16a... Outer wheel, 3b, 1
6b...Inner wheel, 3c, 16c...Hydraulic motor, 3d, 16d...Drive gear, 4...Base frame, 5, 5'...Fixing jack, 6...
Counterweight, 7... Jack, 8... Leader mast, 9... Rotary press-fitting machine, 10... Casing tube, 10a... Cutting edge, 11... Curved bracket, 12... Adjustment cylinder, 13... Rotating chuck Part, 14... Drawing cylinder, 15...
Hydraulic unit, 17... Auxiliary frame, 18...
Hanging boom, 19...Drilling bucket, 20...Winch, 21...Cylinder, 22...Hose reel, 23...Counterweight.

Claims (1)

[Claims for Utility Model Registration] (1) A first turntable is provided on a machine frame having tracks or wheels, and a base frame having a press-fitting device such as a casing in the front is connected to a rotating part of the first turntable. A second turntable is provided on the base frame, and an auxiliary frame equipped with a lifting boom that can be raised and lowered for suspending excavation means such as a bucket is supported by the rotating part of the second turntable. Drilling equipment featuring: (2) The drilling equipment according to claim 1, wherein the first turntable and the second turntable have their axes aligned with each other. (3) The first turntable and the second turntable are arranged so that the axes of the first turntable and the second turntable are shifted and a storage area for a leader mast for a press-fitting device such as a casing is provided in the front part of the base frame. drilling rig.