JPS585333B2 - Renzokukutsusakusouchouchi - Google Patents

Description

[Detailed Description of the Invention] In recent years, with the development of construction machinery, excavation work has been mechanized using shovel-type excavators such as backhoes.
Excavator-based excavation involves repeated scooping with a bucket, making it difficult to increase the work speed. Also, the workload is concentrated on digging and scooping, so a high-output engine and a strong excavation mechanism are required. It was meant to be.

The present invention aims to provide an excavator capable of efficient continuous excavation with fewer problems.

Embodiments of the present invention will be described below based on the drawings.

Fig. 1 shows a wheel loader with an excavator, which is equipped with a hydraulic shovel device 2 at the front of a traveling body 1, and an excavator 3 removably attached to the rear of the body as an attached working device. There is.

1 The AIJ device 3 pivotally connects an arm 8 that is driven to swing up and down by an arm cylinder 7 to a boom 6 that is driven to rise and fall and swing horizontally by a boom cylinder 4 and a swing cylinder 5, and is connected to the tip of this arm 8 for excavation. It is constructed by arranging mechanisms 9 in series, and originally it can be used as a backhoe by attaching a packet to the tip of the arm 8.

As shown in FIGS. 2 and 3, the excavation mechanism 9 has a rotating drum 13 fixed to a support shaft 12 that is horizontally supported by a bifurcated bracket 10 connected to an arm 8 and driven by a hydraulic motor 11. Drilling blade 14 on the outer periphery of 13 and along the mouth edge
A plurality of arm-shaped excavators 15 are attached, and an opening 16 is formed at the inner base of each excavator blade 15, and a gutter-shaped groove opened upward is formed inside the rotating drum 13. The excavated earth and sand receiver is equipped with a tool 17 and a rotary drum 1.
A soil collection drum 18 is fixedly arranged at one end of the excavated soil receiver to collect the soil from the tool 17, and a helical screw 21 is disposed in the tool 17 of the excavated soil receiver, and the soil is discharged from the soil collecting drum 18. A clay pipe 19 is installed in a row, and its soil discharge port 20
is placed on the rear side of the fuselage 1.

The present invention is constructed as described above, and the excavation mechanism 9 is lowered so that the rotary drum 13 is located near the ground surface, and the machine body 1 is moved while driving and rotating the rotary drum 13.
By moving the excavating blades 15, the earth and sand excavated by each excavating blade 15 is guided into the rotating drum 13 through the opening 16, and the excavated earth and sand receiver is received by the tool 17, and then sent to the earth collecting drum 18 by the spiral screw 21, and the earth and sand are collected. Discharge pipe 1 from drum 18
It is designed to be discharged from the side of the fuselage 1 via 9.

In addition, when it is desired to carry out the excavated earth and sand, a spiral screw is placed in the discharge pipe 19, the earth discharge port 20 is positioned high, and the transport vehicle is moved parallel to the machine body 1 at the same time as the excavation work. It can also be collected directly onto a loading platform.

When used for digging trenches for underground piping, the earth and sand in the rotating drum 13 is directly discharged from the outer end of the soil collection drum 18 by the spiral screw 21 and deposited on one side of the excavation trench. After piping work is completed, it is recommended to backfill using a shovel device.

Further, it is convenient if the excavating blade 15 is configured to be detachable and can be replaced with one of various shapes.

As explained above in the embodiments, the present invention supports a rotating drum on the arm of a shovel-type excavator, continuously excavates with a plurality of excavating blades attached to the rotating drum, and transfers earth and sand excavated by the excavating blades to the rotating drum. The earth and sand catch placed inside is stopped with a tool,
Since the helical screw is used to discharge the air outside the rotating drum, excavation work becomes extremely efficient, and the excavation load is almost evenly distributed, eliminating the need for extremely large loads, resulting in relatively low output. Even a small engine can perform highly efficient work using sufficient power.

Moreover, since a large excavation load is not applied to the excavation equipment, it can be used satisfactorily for a long period of time without particularly increasing the strength of the excavation equipment itself.

In addition, since a spiral screw is used as a device for transporting the earth and sand taken into the rotating drum, the drive source for the spiral screw can be shared with the drive source for the rotating drum, simplifying the structure for transporting earth and sand. be able to.

Furthermore, since the excavated earth and sand are collected in a rotating drum and then discharged, there is no need for excavated earth and sand to remain in the excavation traces, which eliminates the need to clean and finish the excavated trench. .

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is an overall side view of a wheel loader with an excavator, Fig. 2 is a cross-sectional plan view of main parts,
FIG. 3 is a longitudinal sectional side view of the main part. 13...Rotating drum, 15...Drilling blade, 19...Earth removal device.

Claims (1)

[Claims] 1 Rotating drum 1 at the tip of arm 8 of a shovel type excavator
3 is rotatably supported, and a gutter-shaped excavated earth and sand receptacle with an open upper side inside the rotary drum 13 is equipped with a tool 17.
In addition, a soil collecting drum 18 is fixedly arranged at one side end of the rotating drum 13, a plurality of excavating blades 15 are attached to the circumference of the rotating drum 130, and the soil excavated by the excavating blades 15 is collected by the excavating blades 15. The excavated earth and sand receiver in the rotary drum 13 is configured to be guided to a tool 17 through an opening 16 opened at the base 5, and the excavated earth and sand receiver is provided with an earth removal device consisting of a spiral screw 21 in the tool 17. Continuous drilling equipment.