JPH0346039Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an excavation device used for cutting roots in construction.

[Prior art]

Conventional excavation equipment has a cutter attached to the front of the excavation equipment body via a boom, and a suction hose is installed along the boom, so that the earth and sand excavated by the cutter is sucked up and carried out by the suction hose. is well known.

However, with such conventional excavation equipment, when carrying out the earth and sand, the tip of the suction hose was supported manually, and the hose tip was carried to the excavated part of the earth and sand to suck it up and carry it out. .

Therefore, for the safety of the workers, the excavation work has to be temporarily stopped to carry out the earth and sand, and the work is performed intermittently, with excavation and removal being carried out alternately, making continuous excavation work impossible, resulting in extremely poor work efficiency. There was a problem in that it led to an increase in costs. Additionally, there was a construction problem in that the work environment was poor and manual work was tiring, requiring multiple workers to work on the project.

[Purpose of invention]

The present invention was proposed to solve these conventional problems, and aims to provide a cost-effective and construction-effective excavation device that enables continuous excavation work by automating earth and sand removal work. purpose.

[Structure of the idea]

In order to achieve the above purpose, a suction hose is installed on the excavation equipment body so that it can follow the movements of the boom and cutter, and the tip of the hose is swung in the width direction of the cutter on the front side of the excavation equipment body. The main purpose of this project is to automate the earth and sand removal work by providing a swinging mechanism to enable continuous excavation work, which is effective in terms of cost and construction.

[Example of idea]

An embodiment of the present invention will be described below based on the accompanying drawings.

As shown in FIGS. 1 and 2A and 2B, a cutter 4 is attached via first and second booms 2 and 3 to the front part of an excavation equipment main body 1 that can be moved forward and backward by a caterpillar. The cutter 4 is composed of a main body 5 and a rotary blade 6 attached to both the left and right sides of the main body 5.

The first boom 2 is connected to the excavation equipment main body 1 by a first hydraulic cylinder 7a and a second boom 3.
is the second hydraulic cylinder 7b for the first boom 2.
Further, the cutter 4 is pin-coupled to the second boom 3 by a third hydraulic cylinder 7c so as to be able to rise and fall freely.

A suction hose 8 for transporting excavated earth and sand is attached to the excavation apparatus main body 1 so as to be able to follow the up-and-down movements of the first and second booms 2, 3, etc.

That is, the distal end of the suction hose 8 made of a flexible member is connected to a T-shaped fitting 15 of a swinging mechanism A (described later) via a fixing band 9, and the intermediate portion of the suction hose 8 is connected to the first boom 2. It is supported with a certain degree of freedom.

Further, the tip of the suction hose 8 is able to swing freely in the width direction (left-right direction) of the cutter 4 by a predetermined swing angle via a swing mechanism A.
The swing mechanism A has a rotary crank 10 rotatably attached to the second boom 3, a long hole 12 into which a crank pin 11 of the rotary crank 10 is fitted, and a base end connected to a support shaft 13. A swinging arm 14 rotatably attached to the second boom 3 via a T-shaped fitting 15 to which the fixing band 9 is coupled, and the T-shaped fitting 15 and the swinging arm 14.
and a flexible swinging arm 16 that connects the T-shaped fitting 15 provided on the main body 5 of the cutter 4.
The swing guide 17 is fitted to be slidable in the left and right directions.

The rotating crank 10 is driven by a hydraulic motor or an electric motor (not shown), and is remotely controlled from the excavator main body 1. Further, the flexible swinging arm 16 employs a chain-like link arm.

Because of this configuration, the rotating crank 10
As a result of the rotation, the swinging arm 14 swings around the support shaft 13, and the T-shaped fitting 15 connected to the swinging arm 14 via the flexible swinging arm 16.
slides on the swing guide 17 in the left and right direction.

As a result, the tip of the suction hose 8, which is connected to the T-shaped fitting 15 by the fixing band 9, also moves integrally with the T-shaped fitting 15 and swings in the left-right direction at a predetermined swing angle.

As a result, the earth and sand excavated by the blade part 6 of the cutter 4 is evenly sucked up and carried out by the suction hose 8.

At this time, since the oscillating guide 17 is attached to the main body 5 of the cutter 4, even if the angle of the cutter 4 changes with the third hydraulic cylinder 7c, the oscillating guide 17, the T-shaped fitting 15, and the fixing band 9 will not move. By moving in sync, the distance between the blade 6 of the cutter 4 and the tip of the suction hose 8 is maintained constant.

In addition, since the suction hose 8 is flexible, it can easily follow changes in the angle of the fixed band 9, and since the flexible swinging arm 16 is also connected in a link shape, it can easily follow changes in the angle of the fixed band 9. On the other hand, it is possible to freely follow the swinging mechanism without damaging it.

[Effect of idea]

As explained above, according to the present invention, the suction hose follows the oscillation of the cutter, and its tip oscillates in the left and right directions, so that the earth and sand excavated by the cutter can be evenly sucked up in synchronization with the excavation work. It can be carried outside, thereby reducing costs by improving work efficiency. Furthermore, since automation does not require human power, the work can be done safely and the number of workers can be reduced, which is extremely effective in terms of construction.

[Brief explanation of drawings]

FIG. 1 is an overall side view showing an embodiment of the present invention;
Figure 2A is an enlarged side view of the main part, Figure 2B is the second
It is a - arrow direction view of figure A. 1... Drilling equipment main body, 2... First boom, 3...
...Second boom, 4...Cutter, 7a-7c...
First to third hydraulic cylinders, 8... Suction hose, 9... Fixed band, 10... Rotating crank,
14... Swing arm, 15... T-shaped bracket, 16
... Flexible swinging arm, 17... Swinging guide,
A... Swing mechanism.

Claims (1)

[Scope of utility model registration request] In the excavation equipment, a cutter is attached to the front part of the excavation equipment body via a boom, and a suction hose is arranged along the boom, and earth and sand excavated by the cutter is sucked up and carried out by the suction hose. A suction hose is attached to the equipment body so as to be able to follow the movements of the boom and the cutter, and a swinging mechanism is provided on the front side of the excavation equipment body to swing the tip of the hose in the width direction of the cutter. A drilling device characterized by: