JPH06173295A - Excavator with conveyor - Google Patents

Abstract

PURPOSE:To facilitate excavating and soil discharge work in the underground or the like where obstructions such as struts exist numerously. CONSTITUTION:A first turning body 3 is installed on a lower traveling body 1 through a first turning device 2, and a second turning body 5 is installed on the first turning body 3 through a second turning device 4. A conveyor 6 is fitted to the side part of the first turning body 3, and an excavating front 15 formed of a an excavating bucket and an articulated arm is fitted to the second turning body 5. The conveyor 6 is removably pinned to a bracket provided at the side face of the first turning body 3, and the excavating front 15 is provided with a locking part 22 for fastening a conveyor fitting suspension member.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an excavator with a conveyor suitable for use when excavating underground for constructing an underground structure such as a basement of a concrete structure.

[0002]

2. Description of the Related Art In the excavation work associated with the construction of an underground structure, the earth and sand excavated in the underground ground should be carried out by a dump truck, or a dump truck for carrying out sand and sand may be carried to the underground excavation ground depending on the site and construction process. When it cannot be operated, the excavated soil is hoisted to the ground by a bucket suspended from a hoisting machine installed on the ground via a wire rope, and the soil is discharged. A conventional hydraulic excavator is used for underground excavation, and the excavated material is loaded onto a dump truck with a conveyor vehicle or the like that has been lowered onto the underground ground, or at a location on the underground ground suitable for hoisting with the above-mentioned landing machine. It is piled up.

[0003]

However, when excavating the above-mentioned underground ground and carrying out the excavated earth and sand, the pillars constituting the underground structure hinder the turning and traveling operations of the hydraulic excavator, so that the excavation of the underground ground is not possible. It must be performed in a cramped environment, and due to the need to be extremely careful, work efficiency declines, and it is not possible to discharge soil at a suitable position. It may not be possible. The present invention, in view of the above problems, excavation in the underground ground where many obstacles such as stanchions are present,
It is an object of the present invention to provide an excavator with a conveyor that enables easy soil removal work.

[0004]

In order to achieve this object, the present invention installs a first swing body on a lower traveling body via a first swing device, and mounts the first swing body on the first swing body. A second revolving structure is installed via a second revolving device, a conveyor is attached to a side portion of the first revolving structure, and an excavation front including an excavation bucket and an articulated arm is attached to the second revolving structure. Is installed. Further, in the present invention, preferably, a structure is provided in which a conveyor is detachably pinned to a bracket provided on a side surface of the first swing body, and a locking portion for hanging the conveyor mounting hanging member is hung on the front. The structure is provided.

[0005]

The excavator with a conveyor of the present invention has the above-mentioned structure, and the conveyor is set in a suitable direction with respect to the lower traveling body by the operation of the first turning device.
The excavation front swivels independently with respect to the conveyor by the operation of the second swivel device, directs the excavation bucket in an arbitrary direction to excavate, drops the excavated earth and sand on the conveyor, and loads it on the dump truck from the conveyor, Alternatively, the soil is discharged directly to the place of excavation on the underground ground or through another conveyor vehicle.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a side view showing an embodiment of an excavator with a conveyor according to the present invention, FIG. 2 (A) is a rear view showing a conveyor mounting operation state, and FIG. 2 (B) is a conveyor hanging at the time of conveyor mounting. 3 is a rear view of the arm showing the member locking structure, FIG.
Is a plan view of the present embodiment, FIG. 4 is a plan view showing a structure part to which a conveyor is attached, and FIG. 5 is a side view for explaining the working situation. In these figures, 1 is a crawler type undercarriage,
2 is a first swivel device with a swivel motor installed on the frame of the lower traveling body 1, 3 is a first swivel body which is a swivel body of the first swivel device 2, and 4 is the first swivel device. The second swivel device 5 with a swivel motor installed on the swivel body 3 of FIG. 2 is a second swivel body which is a swivel body of the second swivel device 4, and includes an engine, a hydraulic pump, an oil tank, It is equipped with a battery, etc. Further, since the present embodiment is configured on the premise that it is operated unattended, it is equipped with a wireless transceiver and an automatic driving device, but detailed description thereof will be omitted.

Reference numeral 6 denotes a conveyor, which is shown in FIGS.
As shown in FIG. 2, the conveyor 6 is provided with projecting plates 6b on the side surface of the frame 6a with a space in front and back.
Are detachably attached to the brackets 7 which are vertically attached to the side surface of the first revolving unit 3 with a space in the front and back by pins 8 respectively. The conveyor 6 of this embodiment is a bar feeder conveyor, and as shown in FIG.
A hopper 6d for throwing in sand is provided at one end of the chain 6, and left and right chains 12, 12 are hung between the left and right drive sprockets 10 and driven sprockets 11 provided at both ends of the conveyor 6, and the chains 12, 12 are regularly spaced Earth and sand carrier 1
Fixed plate 1 in which 3 is attached to the frame 6a over the entire length
4 is mounted so as to be in contact with 4, and the drive sprocket 10 is rotated by the hydraulic motor 9 provided at the other end of the frame 6a to rotate the chain 12, and the earth and sand introduced into the hopper 6d is pushed by the carrier plate 13. And is conveyed on the fixed plate 14 and falls from the other end.

Reference numeral 15 denotes an excavation front attached to the second revolving superstructure 5. The excavation front 15 has a boom 17 which is attached to the second revolving superstructure 5 by a boom cylinder 16 so that the boom 17 can move up and down. The arm 19 includes an arm 19 pinned by an arm cylinder 18 to be vertically rotatable, and a bucket 21 pinned to the arm 19 by a bucket cylinder 20 to be vertically rotatable.

In this embodiment, since the conveyor 6 can be attached to and removed from the first swing body 3 by its own force, the conveyor 6 is attached to the wire rope 23 on the excavation front 15.
A connecting pin 22 for the arm 19 of the arm cylinder 18 is used as a locking portion for hanging by a suspending member such as the above, and is formed in a shape protruding leftward and rightward. As shown in FIGS. At this time, the wire rope 23 hung on the hoisting frame 6c provided at the intermediate portion of the conveyor 6 is locked to both ends of the connecting pin 22, and the boom 17 is erected and the second turning device 4 is operated. The protruding plate 6b of the conveyer 6 is connected to the bracket 7 provided on the first revolving unit 3 by the pin 8, and when the conveyer 6 is removed, the conveyer 6 is removed by the reverse operation described above. With the structure, a crane for attaching and detaching the conveyor 6 is unnecessary. In addition, the conveyor 6 can be separated from the main body for transportation to facilitate transportation.

As shown in FIG. 5, this excavator is installed on the ground when working at a place where a large number of columns 32 are installed, as in the case of constructing an underground structure such as a basement of a concrete structure. When the earth and sand excavated from the underground ground are discharged to the ground by the bucket 31 that is hung from the installed hoisting machine 30 via a wire rope, the first turning device 2
The conveyor 6 is set by setting the conveyor 6 at a suitable position and orientation so as not to collide with the pillars 32 constructed underground, and the earth and sand excavated by the bucket 21 is operated by operating the second turning device 4. Drop it in the hopper 6d,
If necessary, the buckets 31 are piled up at the earthing place 34 of the underground ground via the separately installed conveyor car 33 or the like.

Thus, the conveyor 6 and the excavation front 1
5 not only makes it possible to turn with respect to the undercarriage 1,
Since the excavation front 15 can be swung with respect to the conveyor 6, the positions and orientations of the lower traveling body 1 and the conveyor 6 are suitable to penetrate between them even in an underground structure construction site where there are many columns 32. It is possible to excavate in the state set to, the degree of freedom of work is increased, and excavation and earth removal work becomes easy.

[0012]

According to the first aspect of the present invention, the conveyor can be set in an arbitrary direction without being constrained by the direction of the lower traveling body and work can be performed, and the conveyor can be independent of the conveyor while keeping the conveyor oriented in a suitable direction. Since the excavation front can be swiveled in any direction to excavate in any direction, obstacles will be obstructed even when working in a narrow place where there are many work obstacles such as columns, as when constructing an underground structure. Instead, the work can be easily performed in a suitable posture. According to the second aspect, it is possible to mount and remove the conveyor by itself using only the excavator without the need for a conveyor mounting crane.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of an excavator with a conveyor according to the present invention.

FIG. 2A is a rear view showing a conveyor mounting operation state of the present embodiment, and FIG. 2B is a rear view of an arm showing a locking structure of a conveyor hanging member at the time of mounting a conveyor.

FIG. 3 is a plan view of this embodiment.

FIG. 4 is a plan view showing a structure for mounting the conveyor of this embodiment.

FIG. 5 is a side view illustrating an example of the work situation of the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Undercarriage 2 First swivel device 3 First swivel device 4 Second swivel device 5 Second swivel device 6 Conveyor 7 Bracket 8 pin 9 Hydraulic motor 15 Excavation front 21 Bucket 22 pin 23 Wire rope 30 Excavation Machine 31 Bucket 32 Pillar 33 Conveyor vehicle 34 Excavation site

 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Seiichi Shibayama 4-6-15 Sendagaya, Shibuya-ku, Tokyo Stock company Fujita (72) Inventor Takashi Takimoto 4-6-15 Sendagaya, Shibuya-ku, Tokyo Share ceremony Company Fujita

Claims (2)

[Claims] 1. A first revolving structure is installed on a lower traveling structure via a first revolving device, and a second revolving structure is installed on the first revolving structure via a second revolving device. An excavator with a conveyor, wherein a conveyor is attached to a side portion of the first swing body, and an excavation front including an excavation bucket and an articulated arm is attached to the second swing body. 2. The locking mechanism according to claim 1, wherein the conveyor has a structure in which a conveyor is detachably attached to a bracket provided on a side surface of the first swing body, and the conveyor mounting suspension member is hung on the front. An excavator with a conveyor characterized by having a section.