KR100532020B1 - Cutting machine to precut a gallery vault - Google Patents

Abstract

This drilling rig includes a base 11 and also includes an excavation head 15 supported by a through carriage 14 on the base 11, the base 11 and the excavation head 15. On the one hand has an extension means 26 adapted to be able to move the excavation head 15 perpendicular to the movement direction D of the through carriage 14 and on the other hand to the movement direction D thereof. It is a type of drilling device having an angle adjusting means 27 suitable for rotating around a parallel axis.

According to the invention, the angle adjusting means 27 operates between the through carriage 14 and the excavation head 15, and the extension means 26 is also the same.

The invention is applied to excavate the arched ceiling of a tunnel being excavated underground.

Description

CUTTING MACHINE TO PRECUT A GALLERY VAULT for Excavating Arched Ceiling of Underground Tunnel

French Patent Publication No. 2 723 613, filed and published on August 10, 1994 to French Patent Application 94 09905, discloses an excavation device for excavating the arched ceiling of a tunnel during an underground excavation process. Such an excavation device includes a base of a moving carriage movably mounted on a fixed guide and an excavation head, the excavating head being mounted by a through carriage movably mounted on the base almost parallel to the axis of the fixed guide. Supported, an extension means for moving the drilling head radially relative to the stationary guide, ie almost perpendicular to the direction of movement of the through carriage on the base, between the base and the excavation head, and also the excavation head relative to the axis of the stationary guide. And angle adjusting means for rotating about an approximately parallel axis, ie around an axis that is approximately parallel to the direction of movement of the through carriage.

The advantage obtained by using the extension means and the angle adjustment means in combination is that the excavation head follows any one cross-sectional shape within a certain limit.

Therefore, according to the prior art, there is an advantage that the arched ceiling corresponding to the cross-sectional shape of various tunnels can be excavated by using the same fixing guide within the above specific limits.

The overall object of the present invention is to improve the excavation device as described above.

According to the improved drilling device, the angle adjusting means is interposed between the through carriage and the drilling head, and preferably the extension means is likewise arranged.

Therefore, the total amount occupied by the angle adjusting means and the extending means with respect to the load to be supported is minimized, thereby providing an advantageous effect of protecting and maintaining the angle adjusting means and the extending means, and also improving the overall performance.

Hereinafter, with reference to the accompanying drawings, other features and advantages of the present invention will be described on the basis of a preferred embodiment of the present invention.

As shown in the accompanying drawings and disclosed in the prior art, the excavation device 10 of the present invention is a base 11 and a excavation head 15 of the moving carriage 12 movably mounted on a fixed guide 13. The excavation head 15 is supported by a through carriage 14 which is likewise movably mounted on the base 11 along the movement direction D. In FIG.

The fixing guide 13 is a part which is not improved according to the present invention, and is the same known as that described in the above-mentioned French Patent Application No. 94 09905. For this reason, Fig. 1 shows only the outline of the fixing guide in a broken line.

Therefore, the detailed description of the fixing guide may be omitted in the present specification, and the description of the fixing guide disclosed in French Patent Application No. 94 09905 is incorporated herein as a part.

Regarding the fixing guide, it will be sufficient to explain that it is generally cylindrical and has an arcuate cross-sectional shape which is somewhat similar to the cross-sectional shape of the tunnel to which the arched ceiling is to be excavated when viewed in the cross section.

In addition, the axis A1 of the fixing guide 13 is also shown by the broken line in FIG.

Axis A1 extends along the longitudinal direction of the tunnel during the excavation process.

The moving carriage 12 is mounted on the outer surface of the fixed guide 13 so as to be movable along the side thereof, ie transversely with respect to the axis A1, the same as that of a known type and not improved according to the invention. Component. For this reason, only the outline of the moving carriage is shown in broken lines in FIG.

In the present specification, a detailed description of the mobile carriage 12 will be omitted.

According to a device of the type as disclosed in French Patent Application No. 94 09905, the base 11 generally comprises a shoe 16 and a locking plate 18, in which the moving carriage 12 is integrated, The locking plate 18 supports the through carriage 14 while providing the excavation head 15 with the conical shape necessary to bring the arcuate ceiling annulus continuously formed in the tunnel into contact with each other. It is connected around an axis A2 perpendicular to the axis A1 of the fixing guide 13.

Such a configuration is not improved by the present invention, and further detailed description thereof will be omitted herein.

Except for the inclination due to the conical shape, the direction D in which the through carriage 14 moves on the base 11 is generally parallel to the axis A1 of the fixed guide 13.

The locking plate 18 of the base 11 comprises two beams 19 along its longitudinal direction, ie in a direction parallel to the axis A1, with the beam and through carriage 14 sliding. As it moves, it is contacted in the lateral direction by the cover 20.

As shown in FIG. 2, the through carriage 14 moving along the length of the beam 19 can be controlled by, for example, a hydraulic device 21 supported by the through carriage 14, the hydraulic device being Meshes with the tooth orbit of the rib 22 integrated with the locking plate 18.

Such a configuration is known to those skilled in the art, and will not be described in further detail.

Since the drilling head 15 is also not novel, detailed description is omitted here.

The drilling head comprises an elongated blade 23 which extends out of the center point from the support 24 in a known manner, only to illustrate that the support 24 includes the means necessary to control the blade 23. Will be enough.

Further, in accordance with a known manner, ie, as disclosed in the aforementioned French patent application 94 09905, between the base 11 and the drilling head 15, in accordance with the manner as described in detail below, the extension Means 26 and tilting means 27 are provided which extend the drilling head 15 radially relative to the fixed guide 13, ie through carriage 14 on the base 11. While the angle adjusting means moves the drilling head 15 around an axis A3 parallel to the axis A1 of the fixed guide 13, ie It is for rotating about an axis parallel to the moving direction D of the through carriage 14.

For the sake of simplicity, on the drawing, the axis A3, that is, the axis for angle adjustment, is shown to overlap with the moving direction D of the through carriage 14.

Axis A3 is shown in broken lines in FIGS. 1 and 2, and its target is shown in FIG. 3.

According to the invention, the angle adjusting means 27 operates between the through carriage 14 and the digging head 15.

Preferably, as in the case of the form described in the illustrated embodiment, the extension means 26 also operate between the through carriage 14 and the excavation head 15.

According to the embodiment shown in FIGS. 1 to 7, the extension means 26 is in direct sliding contact with the runner 28, the runner 28 supported by the through carriage 14, and the excavation head 28. And a control means 30 for stabilizing the movement of the slider 29 on the runner 28. On the other hand, the angle adjusting means 27 includes an angle adjusting shaft 32 and control means 33 for stabilizing rotation of the angle adjusting shaft, and the angle adjusting shaft 32 is rotatable on the through carriage 14. And a runner 28 is provided at one end.

Specifically, according to the embodiment shown in FIGS. 1 to 3, the through carriage 14 includes a locking plate 35, a cover 20 is integrated in the locking plate 35, and the cover 20 is attached to the cover 20. The locking plate 35 is brought into contact with the beam 19 of the base 11. The through carriage 14 also has two flanges 36 supported by the locking plate 35 and spaced apart in parallel with each other, the flanges being perpendicular to the locking plate 35 and being substantially It is arranged on the side of the slider 29 opposite the drilling head 15.

Further, in the embodiment, the angle adjustment shaft 32 extends continuously between the two flanges 36 and is fixed to the outside of the volume defined by the two flanges 36 on the angle adjustment shaft 32. The runner 28 is adjacent to either flange 36 closer to the excavation head 15.

In addition, in the embodiment, the control means 33 of the angle adjustment shaft 32 comprises a motor or a deceleration motor 37, which motor or deceleration motor is supported by the through carriage 14, more specifically. Output shaft, which is supported between the flanges 36 by a locking plate 35 of the through carriage, and which is equipped with a small pinion 38 which is engaged with the ring gear 39 surrounding the angled shaft 32 and fixed to the shaft. Is supported on.

In the embodiment shown, the slider 29 engages the runner 28 in a manner that is mounted in a T-shaped groove.

The control means 30 coupled to the slider 29 is, for example, a ram located along the axis of the slider 29 as shown in the accompanying drawings.

In the illustrated embodiment, the excavation head 15 is rotatably mounted on the slider 29 around an axis A4 which is substantially perpendicular to the direction of movement D of the through carriage 14, while the axis A4. Control means 40 suitable for stabilizing rotation about

For example, as shown, the support 24 of the drilling head 15 comprises a butterfly nut 41, by which the drilling head extends along the axis A4 and the slider 29. Is rotated to a shaft 42 extending between the two integral side portions 43 of.

The control means 40 also comprise two rams 44 supported by a slider 29, each ram being disposed on both sides of the slider and connected to the slider 29 through its body and at the same time its neck. The part itself is connected to the support 24 of the excavation head 15.

Preferably, for clearance of the ram 44, the sides of the flange 36 of the through carriage 14 closer to the slider 29 extend slightly closer to each other as they are obliquely away from the slider 29. .

As simply shown by broken lines in FIG. 3, according to the angle adjusting means 27 provided in accordance with the present invention, the runner 28, that is, the excavation head 15, corresponds to both sides of the angle adjusting axis A3. It can rotate around the angle adjustment axis A3.

As the slider 29 moves radially along the runner 28 and the drilling head 15 rotates as above, the drilling head can follow any cross-sectional shape within certain limits.

For example, the range in which the slider 29 moves along the runner 28 may be 1 m or less, and the range of rotation of the runner 28 on both sides of the angle adjustment axis A3 may be in the range of 10 degrees to 20 degrees. have.

However, these numerical ranges are described only as a representative example and do not limit the scope of the present invention.

In practice, the angle of rotation around the angle axis A3 may be further reduced as the angle axis A3 approaches the blade 23 of the drilling head 15.

In the modified embodiment shown in FIGS. 4 and 5, the control means 33 of the angular shaft 32 comprises one or more rams 37 ′, which rams comprise a through carriage 14 and an angular shaft ( It is interposed between the lugs 47 integrated in 32.

In practice, two rams 37 'are provided, which are arranged on both sides of the angle adjustment shaft 32, respectively.

For example, as shown in the figure, the body of the ram is supported by the through carriage 14, more precisely between the flanges 36 by the locking plate 35 of the through carriage, while The neck portion is connected to the corresponding lug 47 of the angle adjustment shaft 32.

In the embodiment shown in FIGS. 6 and 7, the through carriage 14 comprises a locking plate 35 and two flanges 36 ′ as described above, but the flange 36 ′ is in the direction of movement D. FIG. It is not perpendicular to but extends parallel to the direction of movement.

In addition, the locking plate 35 extends at the bottom of the runner 28 and the slider 29 and is spaced apart therefrom and includes a flange 48 perpendicular to the direction of movement D.

In addition, the runner 28 includes an additional flange 50 abutting the flange 48 of the through carriage 14 at the end of the arm 49.

In addition, the angle adjustment shaft 32 is divided into two shafts 32 'and 32 ", which are respectively disposed on both sides of the slider 29, the shaft 32' being a motor of the control means 33 or The runner 28 is fixed in a rotatable manner on the output shaft of the reduction motor 37, while the shaft 32 ″ is between the flange 50 of the runner 28 and the flange 48 of the through carriage 14. Intervened in

The configuration of the remaining parts is generally the same as the above-described embodiment.

In the embodiment shown in FIGS. 8 and 9, as described above, the extension means 26 is in contact with the runner 28 and the runner 28 supported by the through carriage 14 in a sliding relationship, and is excavated. A slider 29 supporting the head 15 and control means 30 for stabilizing the movement of the slider 29 on the runner 28 are included. On the other hand, the angle adjusting means 27 is a control means for stabilizing the rotation of the plate 52 and the plate's angle adjustment axis A3, as described above, around the moving direction D of the through carriage 14. (33 '). The plate 52 supports the excavation head 15 and rotates parallel to the axis A3 on the slider 29, ie about the direction of movement D of the through carriage 14 around the angle axis. It is mounted as possible.

Indeed, in a manner well known to those skilled in the art, the plate 52 is integrated with a ring gear in engagement with the control means 33 ′.

For example, the control means 33 ′ comprises a motor or a deceleration motor 37.

In the embodiment shown, the through carriage 14 comprises only one flange 36 in the central region of the locking plate 35.

The runner 28 abuts the cross section of the flange 36.

The rest of the configuration is the same as the embodiments described above.

Specifically, the excavation head 15 is rotatably mounted on the plate 52 about an axis A4 substantially perpendicular to the moving direction D of the through carriage 14, and around the axis A4. Controlled by control means 40 with a ram 44 suitable for stabilizing rotation.

In the above, the present invention has been described in detail based on the specific embodiments shown in the drawings, but the present invention is not limited thereto, and embodiments according to various modifications and / or combinations of various configuration requirements are also included in the scope of the present invention. It should be noted that it is included.

According to the drilling device according to the present invention, the angle adjusting means is disposed between the through carriage and the drilling head, and the extension means is also disposed between the through carriage and the drilling head. Therefore, the total amount occupied by the angle adjusting means and the extending means with respect to the load to be supported is minimized, which is effective in maintaining the angle adjusting means and the extending means and also improves the overall performance.

1 is a view showing a partial partial elevation view of the excavation device of the present invention.

FIG. 2 is a partial top view taken along arrow II of FIG. 1.

3 is a cross-sectional view taken along line III-III of FIG. 1.

4 and 5 are partial views corresponding to parts of FIGS. 1 and 2, respectively, and show a first modified example according to the present invention.

6 and 7 are similar partial views corresponding to parts of FIGS. 1 and 2, respectively, illustrating a second variant according to the present invention.

8 and 9 are similar partial views corresponding to parts of FIGS. 1 and 2, respectively, illustrating a third variant according to the present invention.

Claims (11)

An excavation head 15 supported by a base 11 constituting a part of the moving carriage 12 movably mounted to the fixed guide 13 and a through carriage 14 movably mounted to the base 11. An extension for allowing movement of the drilling head 15 perpendicular to the movement direction D of the through carriage 14 on the base 11 between the base 11 and the drilling head 15. In the digging device comprising means 26, angle adjusting means 27 for turning the drilling head 15 around an axis A3 parallel to the direction of movement D, the angle adjusting means 27 Excavator, characterized in that it operates between the through carriage (14) and the excavation head (15). 10. Excavator according to claim 1, characterized in that the extension means (26) also operate between the through carriage (14) and the excavation head (15). 3. The runner (28) according to claim 2, wherein the extension means (26) is a runner (28) supported by the through carriage (14), a slider (29) and a runner (28) which engage the runner (28) and support the drilling head (15). Control means 30 for ensuring the movement of the slider 29 on the top, the angle adjusting means 27 being rotatably mounted to the through carriage 14 and supporting the runner 28. And control means (33) for causing rotation of the angle adjustment shaft (32). 4. Excavation device according to claim 3, characterized in that the control means (33) of the angle adjustment shaft (32) comprises a motor or a deceleration motor (37) supported by the through carriage (14). 4. The control means (33) of the angle adjustment shaft (32) according to claim 3, wherein the control means (33) of the angle adjustment shaft (32) comprises at least one ram (37 ') operative between the lug 47 and the through carriage 14 connected to the angle adjustment shaft (32). Excavator, characterized in that doing. 6. The angle adjusting shaft 32 according to any one of claims 3 to 5, characterized in that it extends continuously between two flanges 36, each arranged on a slider 29 opposite the drilling head 15. Excavator made. The excavation according to any one of claims 3 to 5, characterized in that the angle adjustment shaft (32) is divided into two stub shafts (32 ', 32 ") arranged separately on the slider (29). Device. 6. The drilling head 15 according to claim 2, wherein the excavation head 15 is pivotally mounted to the slider 29 around an axis A4 perpendicular to the direction of movement D of the through carriage 14. An excavation device characterized in that it is controlled by control means (40) that pivots about an axis (A4). 3. The runner (28) according to claim 2, wherein the extension means (26) is a runner (28) supported by the through carriage (14), a slider (29) which engages the runner (28) and supports the drilling head (15). Control means 30 for ensuring the movement of the slider 29 on the side, the angle adjusting means 27 being rotatable about an axis A3 parallel to the movement direction D of the through carriage 14. And a control means (33 ') for causing rotation of the plate (52) around the axis (A3). 10. Excavation device according to claim 9, characterized in that the plate (52) is attached to a ring gear that engages the associated control means (33 '). The drilling head 15 according to claim 9 or 10, is mounted to the plate 52 pivotally about an axis A4 perpendicular to the direction of movement D of the through carriage 14, and the axis A4. Excavator, characterized in that controlled by a control means (40) to pivot around.

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