JPH069109Y2 - Shield type tunnel excavator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a shield tunnel excavator.

(Prior Art) A conventional shield tunnel excavator will be described with reference to FIGS. 7 and 8. (01) is an excavator body, (02) is a hydraulic motor, and (04) is a hydraulic motor.
Is a cutter face, (03) is a bearing that rotatably supports the cutter face (04) on the excavator body (01), and (05) is inside the excavator body (01) behind the cutter face (04). Fixed face-side bulkhead, (06) is the same face-side bulkhead (05) and a plurality of pipes that penetrate the excavator body (01), and (07) is the same pipe (0).
The valve (08) attached to the inner end of (6) is the excavator body (0
1) In the main body of the trial digging machine installed to allow vertical movement and tilting,
The test excavator body (08) is moved up and down and tilted, and the test excavator body is moved.
(08) faces one of the pipes (06), drives the test excavator body (08), and rotates the trial drilling rod penetrating the pipe (06) to perform trial drilling. There is.

(Problems to be Solved by the Invention) In the shield type tunnel excavator shown in FIGS.
It is necessary to install the test excavator main body (08) inside the excavator main body (01) so that it can move up and down and tilt, which complicates the support device of the test excavator main body (08) and also the excavator main body (01). There is a problem that it cannot be applied to a small-diameter shield tunnel excavator because it requires a large space inside.

The present invention has been proposed in view of the above problems, and the object thereof is to simplify the structure of an apparatus for performing trial drilling in an arbitrary angle direction. It can also be applied to small diameter shield tunnel excavators. In addition, the trial drilling direction can be adjusted steplessly. Moreover, it does not affect the cutter head function. Further, another object is to provide a shield type tunnel excavator capable of eliminating the sliding bearing and the seal interposed between the face wall and the cutter face.

(Means for Solving the Problems) In order to achieve the above-mentioned object, a shield tunnel excavator of the present invention has a rotatable cutter face attached to the forefront part of the excavator body, and A cutting face side partition that rotates together with a cutter face provided in the rear part, and a penetrating portion of a trial drilling rod provided in the partition,
The tester main body is attached to a partition wall in the vicinity of the penetrating portion and has a variable trial digging angle, and means for changing the test digging angle of the tester digging body.

(Operation) The shield tunnel excavator of the present invention is configured as described above, and by changing the angle of the test excavator body, the test excavator body mounted near the penetrating portion of the bulkhead is changed to perform the same test excavation. After aligning the direction of the machine body with the penetration of the bulkhead,
The main body of the test digging machine is driven to rotate the test digging rod penetrating the penetrating portion of the partition wall to perform the test digging at an angle α, for example. Further, after rotating the cutter face and the partition wall attached to the forefront part of the excavator main body to change the direction of the penetrating portion of the partition wall, test excavation at an arbitrary circumferential position is performed in the same manner as above.

(Embodiment) Next, the shield tunnel excavator of the present invention will be described with reference to an embodiment shown in FIGS. 1 to 4. (1) is an excavator body, (2) is the excavator body (1). Hydraulic motor installed inside,
(4) is a rotatable cutter face attached to the foremost part of the excavator body (1), (5) is a cutting face partition wall integrated with the cutter face (4), and (3) is a cutting face partition wall (5). ) And a bearing that rotatably supports the cutter face (4), (5a) is a penetrating portion of a trial drilling rod provided in the partition wall (5) on the face side, and (6) is a bendable joint portion. The part (6) is composed of a fixed part (6a) fixed to the penetrating part (5a) and a movable part (6b) slidable with respect to the fixed part (6a). Also
(9) is a support plate, (11) is a bracket formed on both front edges of the support plate (9), and (12) is rearward from the face-side partition wall (5) on both sides of the penetrating part (5a). A projecting bracket, (13) a pin for pivotally supporting the brackets (11), (12), and (10) a hydraulic jack interposed between the support plate (9) and the face-side partition wall (5). Then, when the hydraulic jack (10) is operated in the expansion / contraction direction, the support plate (9) is tilted in the vertical direction about the pin (13). Further, (14) is a connecting plate fixed on the supporting plate (9), (7) is an openable and closable valve interposed between the connecting plate (14) and the joint part (6), (7a) Is the through hole of the valve (7), (8) is the main body of the test digger installed on the support plate (9),
The center line of the main body of the test digging machine (8) passes through the center of the through hole (7a) of the valve (7).

Next, the operation of the shield type tunnel excavator shown in FIGS. 1 to 4 will be described. The hydraulic jack (10) is operated in the expansion and contraction direction, the support plate (9) is tilted in the vertical direction about the pin (13), and the trial drilling at the angle α is performed. Further, the hydraulic motor (2) is driven to rotate the partition wall (5) on the face side and the cutter face (4) to change the direction of the penetrating portion (5a) to perform trial drilling at an arbitrary position in the circumferential direction.

FIG. 5 shows another embodiment in which the valve (7) is directly attached to the penetrating portion (5a).

FIG. 6 shows that a spherical groove (16) is provided in the penetrating part (5a), a spherical guide plate (15) is slidably inserted in the spherical groove (16), and a through hole is formed in the guide plate (15). Another embodiment in which (17) is provided and the valve (7) is attached to the rear end side of the through hole (17). Also in this embodiment, the shield tunnel shown in FIG. 1 to FIG. The same action as an excavator can be achieved.

(Effect of the Invention) The shield tunnel excavator of the present invention changes the angle of the test excavator body as described above by changing the test excavator body mounted near the penetrating part of the bulkhead, and After adjusting the direction to the penetration of the bulkhead, drive the test drilling machine body, rotate the trial drilling rod that penetrates the penetration of the bulkhead,
For example, a trial digging with an angle α is performed. Also, after rotating the cutter face and partition wall attached to the foremost part of the excavator body to change the direction of the penetrating part of the partition wall, in the same manner as above, test drilling at any position in the circumferential direction is performed, so It is possible to simplify the structure of the device for performing trial drilling in the angular direction.

In addition, the cutting face side partition is configured to rotate together with the cutter face, the penetration face is provided in the cutting face side partition, and the trial drilling angle of the drilling machine main body with respect to the penetration portion is made variable, so that the trial drilling direction can be adjusted steplessly. it can.

Further, since the cutting face side partition wall is configured to rotate together with the cutter face, and they are integrated with each other, there is no need to change the shape of the cutter face and the cutter face function is not affected.

Further, since the facet side partition wall and the cutter face are integrated, there is an effect that the sliding bearing and the seal interposed between them are unnecessary.

[Brief description of drawings]

1 is a vertical sectional side view showing an embodiment of a shield tunnel excavator according to the present invention, FIG. 2 is a vertical sectional front view thereof, and FIG. 3 is an enlarged vertical sectional side view of an arrow III portion of FIG. 4 is a vertical cross-sectional rear view taken along the line IV-IV in FIG. 3, FIG. 5 is a vertical cross-sectional side view showing another embodiment, and FIG. 6 is a vertical cross-sectional side view showing another embodiment. FIG. 1 is a vertical sectional side view showing a conventional shield type tunnel excavator, and FIG. 8 is a front view showing a part thereof. (1) …… Excavator body, (4) …… Cutter face, (5)…
… Bulkhead side bulkhead, (5a) …… Penetration part, (8) …… Prospecting machine body,
(9) …… Support plate.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Hironori Imoto 4-13-13 Akasaka, Minato-ku, Tokyo Kyowa Denshi Co., Ltd. (72) Creator Shioya Yoshinori 1-chome, Wadazaki-cho, Hyogo-ku, Kobe-shi, Hyogo No. 1-1 Mitsubishi Heavy Industries, Ltd. Kobe Shipyard (72) Inventor Toshifumi Inoue 1-1-1, Wadasaki-cho, Hyogo-ku, Kobe-shi, Hyogo Prefecture Mitsubishi Heavy Industries Ltd., Kobe Shipyard (56) References 41273 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A cutting face side partition having a rotatable cutter face attached to the foremost part of the excavator body and rotating with a cutter face provided at the rear of the cutter face, and for trial drilling provided on the partition. A shielded tunnel characterized by comprising a penetrating part of a rod, a test excavator body mounted on a partition wall in the vicinity of the penetrating part and having a variable trial excavation angle, and means for changing the test excavating angle of the test excavator body. Excavator.