JPH0364678B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an underground excavation device that remotely operates on the ground to excavate a vertical hole, for example, during foundation construction of a power transmission line tower.

Traditionally, the excavation of vertical holes during foundation work for power transmission line towers was carried out mainly by hand by workers entering the hole. However, in order to minimize the environmental damage caused by recent construction work, there has been a demand for the hole diameter to be made as small as possible, and in response to this request, reducing the hole diameter and increasing the depth accordingly poses a danger to workers. There was a problem with the increase in

The present invention was made by focusing on the above-mentioned problems in conventional pit excavation work.
The purpose of the present invention is to provide an excavation device that can perform excavation and removal work on the ground safely and remotely.

Embodiments of the invention will be described below with reference to the figures. Stage 1 is fixed horizontally on the ground. In the illustrated embodiment, two stages 1 are arranged vertically parallel to each other on a slope.
a and 1b are fixedly installed.

Rotating tables 2a and 2b are provided at the center of the upper and lower stages 1a and 1b, respectively, so as to be horizontally rotatable. The rotating base 2b of the lower stage 1b meshes with a sprocket 4 of a drive motor 3, which is a rotating device, and is horizontally rotatable.

The drive tower 5 passes through the swivel base 2 of the upper stage 1a and the lower stage 1b so as to be vertically movable up and down and horizontally rotatable together with the swivel base 2. The drive tower 5 can be raised and lowered by a lifting device. In the illustrated embodiment, the lifting device consists of a winch 9 and a wire rope 10 locked thereto and connected to the drive tower 5 via pulleys 6, 7, 8. Winch 9 is upper stage 1
It is provided on the swivel base 2a of a. A rotary pole 11 is rotatably attached to the lower end of the drive tower 5 so as to stick into the bottom of the hole and serve as the center of rotation of the drive tower 5. Drive tower 5 is
As the excavation progresses, it will be added upwards and lowered.

The rock drill 12 and the excavator 13 are mounted on one side near the lower end of the drive tower 5, and can be remotely controlled from the ground. As shown in Figure 1, excavator 1
The arm 13a of 3 is a gate-shaped drive tower 5.
The excavation work shall be carried out in this condition.

The bucket 14 is located on the opposite side from the rock drill 12 and the excavator 13, and is provided so as to be movable up and down with respect to the drive tower 5. That is, the bucket 14 is
It is suspended from a wire rope 16 connected to a winch 15 fixed on the rotating table 2a of the upper stage 1a, and is detachably attached to an elevating frame 17 that can be raised and lowered along the side surface of the drive tower 5. The bucket cart 14 has casters and can therefore be easily removed from the lifting frame 17 and transported for unloading. When the lifting frame 17 is at the lowest position of the drive tower 5, the arm 13a of the excavator 13 can be inserted through it, and the excavator 13 can load excavated earth into the bucket 14. do. A part of the swivel base 2b is configured to be openable and closable so that the bucket 14 can be pulled up onto the lower stage 1b. That is, the opening/closing part 2c forming a part of the swivel base 2b is hinged to a fixed part as shown in FIGS. 3 and 5, and when the opening/closing part 2c is opened as shown in FIG. It is possible to pass through the swivel base 2 together with 17.

In FIGS. 2 and 3, reference numeral 18 is a roller, which is attached to the four inner corners of the swivel base 2, and is attached to the drive tower 5.
It is in contact with the four corners of the swivel to guide its vertical elevation and to position it relative to the swivel base 2. 1
9 is a guide rail, and 1 is opposite to the drive tower 5.
It is fixed along the pair of vertical frames and guides the vertical movement of the vertical frame 17. Further, in FIG. 1, reference numeral 20 denotes a crane, which lifts and moves a new structural column when connecting it to the upper end of the drive tower 5. 21 is the operator house, lower stage 1
b, where the operator remotely controls the device. Although not shown,
A jackhammer 1 is installed at an appropriate position at the bottom of the drive tower 5.
2 and the operation of the excavator 13 at the operator house 2.
A television camera is installed to monitor the area.

Next, the operation of this device will be explained. Excavation or rock drilling work is performed with the bucket 14 placed above the drive tower 5. Jackhammer 12, excavator 1
3 can be changed by rotating the drive tower 5 together with the swivel base 2 around the rotating pole 11. When carrying out the excavated earth, the arm 13a of the excavator 13 is folded inside the drive tower 5, the bucket 14 is lowered, and while it is positioned at the lower end of the drive tower 5, it is passed between the elevator frames 17. The user extends the arm 13a again and uses the shovel of the excavator 13 to scoop up the waste soil from the bottom of the hole and load it into the bucket 14. Excavator 1 again after loading
3's arm 13a is folded inside the drive tower 5, and the bucket 14 is pulled up by the winch 15. When the bucket 14 reaches below the lower stage 1b, open the opening/closing part 2c of the swivel base 2 and open the bucket 14.
is raised above the lower stage 1b, removed from the lifting frame 17, and carried to a predetermined location to dispose of the earth and sand. As the hole progresses, new structural columns are successively added to the upper part of the drive tower 5 and lowered.

As explained above, the present invention comprises a stage 1 which is fixed horizontally on the ground, a swivel table 2 which is installed on this stage 1 and can be horizontally rotated by a rotation device, and a center of the swivel table 2. a drive tower 5 which is provided to penetrate vertically and horizontally rotate together with the swivel base 2 and can be raised and lowered by an elevating device; a rotary pole 11 which is rotatably provided at the lower end of the drive tower 5 and is stuck into the bottom of the hole; A rock jackhammer 12 and an excavator 13 are installed on one side near the lower end of the drive tower 5 and can be remotely controlled from the ground. The structure is equipped with a television camera that is installed below the tower 5 and can monitor the operation of the rock drill 12 and excavator 13, so workers can safely and efficiently avoid entering the narrow and dangerous bottom of the hole. The effect of being able to perform hole digging work is obtained.

[Brief explanation of drawings]

Fig. 1 is a front view, Fig. 2 is a plan view of the upper stage, Fig. 3 is a plan view of the lower stage, Fig. 4 is a front view of the same, Fig. 5 is a side view of the same, and Fig. 6 is a plan view of the wire rope. FIG. 7 is a schematic front view showing the hanging configuration, and FIG. 7 is a schematic front view showing the bucket bag in a suspended state. 1...stage, 2...swivel table, 5...drive tower, 11...rotating pole, 12...rock jackhammer, 13...excavator, 14...bucket.

Claims (1)

[Claims] 1 A stage fixed horizontally on the ground, a swivel table installed on this stage that can be horizontally rotated by a rotation device, and a swivel table that is installed vertically through the center of the swivel table and can be horizontally rotated together with the swivel table. A drive tower that can be raised and lowered by a moving lifting device, a rotating pole inserted into the bottom of a hole rotatably provided at the bottom of the drive tower, and a rotating pole that is attached to one side near the bottom of the drive tower and can be remotely controlled from the ground. a rock jackhammer and excavator, a bucket along one side of the drive tower that can be raised and lowered by another lifting device, and a television camera installed below the drive tower and capable of monitoring the operation of the rock jack and excavator. Underground excavation equipment equipped with.