JP2519100Y2 - Tunnel machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to improvement of a tunnel machine.

(Prior Art) In a tunnel excavator, rock mass is excavated by a boom cutter, and the excavated scraps are gathered by gathering, loaded on a conveyor, and carried out to the rear.

(Problems to be solved by the invention) By the way, in such a tunnel excavator, if the tunnel cross section becomes large or the rock strength of the face decreases, the amount of excavation by the boom cutter will increase, but even in that case, the loading capacity of gathering will increase. Since there is a limit, it takes time to carry out the scrap. Further, when the sludge becomes mud or contains clay, the sludge sticks to the flight bar of the gathering head, which causes a problem that the loading capacity is significantly reduced.

(Means for Solving the Problem) In order to solve such a problem, the present invention is directed to a tunnel excavator equipped with a boom cutter for excavating rock mass, a turret for mounting the boom cutter, and a conveyor for transporting the slip. , A backhoe for picking up the excavated scraps on the turrets on both sides of the boom cutter and loading them into the conveyor is mounted so as to rotate together with the boom cutter.

(Operation) The excavated scraps are scraped by the left and right backhoes and loaded on the conveyor. The backhoe exerts a large loading capacity regardless of the state of the scrap, so that a large amount of the scrap can be efficiently discharged in a short time.

(Embodiment) In FIGS. 1 to 3, 1 is an excavator main body, 2 is a moving base, and a guide rail 3 extending in the front-rear direction is formed on the base 2. The excavator main body 1 is supported on a base 2 via a slide shoe 4 which is slidable along a guide rail 3 and is moved back and forth by a hydraulic jack 5 interposed between the excavator body 1 and the base 2.

Here, in order to move the excavator as a whole forward or backward, after moving the excavator main body 1 on the base 2 in the traveling direction,
It is necessary to move the base 2 in the same direction with respect to the excavator main body 1. Therefore, the excavator 6 for scraping loading, which also functions as a front rigger, is provided at the front of the excavator main body 1.
However, at the rear portion of the excavator body 1, an elevator 7 is provided which lifts the entire excavator by using the soil discharging plate 6 as a support for the road surface. The earth removing plate 6 is attached to the front portion of the excavator main body 1 via a hinge bracket 8 so as to be swingable in the vertical direction,
It moves up and down by a hydraulic jack 9 provided between the excavator body 1.

In addition, a turret that horizontally swivels at the front of the machine 1
10 is provided, and the boom cutter 12 is swingably supported on the turret 10 via a horizontal shaft 11.

The turret 10 is swung by a hydraulic jack 13 provided between the turret 10 and the excavator main body 1, and the boom cutter 12 is swung up and down by a hydraulic jack 14 provided between the turret 10 and the turret 10. In addition, a cutter head 15 is mounted on the tip of the boom cutter 12 and is provided with a large number of bids for cutting rock.

And on both sides of the turret 10 backhoes 16
The operation console 17 is formed, and the bracket 19 is attached to the front portion of the operation console 17 via the vertical shaft 18 so as to freely swing. Backhoe
The arm 16 includes a swinging bucket 21 at the tip of an arm 20, and a base end of a bracket 22 is hinged to a bracket 19 so as to be swingable in the vertical direction.

The bracket 19 is swung by a hydraulic jack 24 provided between the bracket 19 and the operation table 17, and the boom 22 is vertically swung by a hydraulic jack 25 provided between the bracket 22 and the operating bracket 17. Further, the bucket 21 swings up and down by a hydraulic jack 26 interposed between the arm 20 and the arm 20, and the arm 20 bends up and down by a hydraulic jack 27 interposed between the arm 20 and the boom 22.

In addition, in this example, conveyors 30 and 31 are provided on one side of the excavator main body 1 to convey the slip from the outlet of the soil discharge plate 6 rearward.

Next, the operation based on such a configuration will be described. Boom cutter 12 by hydraulic jacks 14 and 13 during tunnel excavation
Is moved up, down, left and right to move the cutter head 15 to a desired excavation position, and in this state, the cutter head 15 is rotationally driven to excavate a face.

When excavating the excavated sledge, the left and right backhoes 16 are individually driven to move the buckets 21 to scrape the sledge from the left and right of the tunnel cross section, and the backhoe 16 on the side of the conveyors 30 and 31 further discharges this to the soil plate 6. You just have to pick it up along the way and load it. In this case, the backhoe 16 exerts a great loading ability regardless of the state of slippage,
A large amount of misalignment can be carried out efficiently in a short time. Also,
Left and right backhoes 16 are boom cutters via the turret 10.
Since it turns together with 12, if you turn the boom 22 via the bracket 19 so as not to interfere with the boom cutter 12,
It is also possible to load piles and excavate rock mass at the same time.

The conveyors 30 and 31 may be provided on both sides of the excavator main body 1 so that the left and right backhoes 16 can separately load the slips. A gathering head may be provided on the front surface of the soil discharging plate 6 in order to further increase the loading capacity of the scrap.

(Effects of the Invention) In short, according to the present invention, in the tunnel excavator equipped with the boom cutter for excavating rock mass, the turret equipped with the boom cutter, and the conveyor for conveying the slip,
A backhoe for picking up the excavated scraps on the turret on both sides of the boom cutter and loading them on the conveyor was installed so as to rotate together with the boom cutter, so that a large amount of scrap can be removed in a short time regardless of the slip condition. Can be efficiently carried out, and the effect of accelerating the progress of excavation can be expected. In addition, since the left and right backhoes rotate together with the boom cutter via the turret, it is possible to simultaneously load and excavate rock without interfering with the boom cutter and backhoe.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a front view thereof. 1 ... excavator body, 12 ... boom cutter, 16 ... backhoe, 30,31 ... conveyor.

 ─────────────────────────────────────────────────── --Continued from the front page (56) References JP-A-51-132602 (JP, A) JP-A-59-203197 (JP, A)

Claims (1)

(57) [Scope of utility model registration request] 1. In a tunnel excavator equipped with a boom cutter for excavating rock mass, a turret for mounting the boom cutter, and a conveyor for transporting the scrap, a conveyor is provided by scraping the scraps excavated on the turret on both sides of the boom cutter. A tunnel excavator characterized by being equipped with a backhoe for loading into a vehicle so that it can rotate together with the boom cutter.