JPH09287390A - Fixture for disk cutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fixture, by which the replacement works of a disk cutter device are facilitated, the exchanging workhours are also shortened, and automation for the replacement of the disk cutter device is facilitated. SOLUTION: This disk cutter device 10 is installed to a cutter head for a tunnel excavator. A fixture for a disk cutter is mounted to either one of the cutter head or the disk cutter device 10 consisting of a disk cutter 11 and bearing sections 12 supporting the disk cutter 11. The fixture for the disk cutter has a fixing member 23 operated for freely fastening and releasing the cutter head and the disk cutter device 10, an engaging section 14, with which the fixing member 23 set up to the other of either of the disk cutter device 10 and the cutter head is engaged, an engaging operating means interlinking the fixing member 23 with the engaging section 14, and a release operating means releasing engagement between the fixing member 23 and the engaging section 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk cutter mounting device for mounting a disk cutter of a tunnel machine to a cutter head.

[0002]

2. Description of the Related Art A first conventional technique relating to a disk cutter mounting device for a tunnel excavator is shown in FIGS.
No. 57-137696 as shown in FIG. 18 and the second conventional technique is shown in FIG.
There are 91. First, the first conventional technique shown in FIGS. 14 to 17 will be described. As shown in FIG. 14, a disk cutter device 50 is attached to each of a plurality of cutter cases 53 fixed to a cutter head 52 of a tunnel excavator 51. Further, when the disc cutter device 50 is worn or the like, it is necessary to replace the disc cutter device 50, and the worker 54 attaches and detaches the disc cutter device 50 from the inside of the cutter head 52 upon replacement.

15 to 17, the disc cutter device 50 comprises a disc cutter 55 and a pair of bearing portions 56, 56 for rotatably supporting the disc cutter 55. The bearing 56 is provided with a female screw 57 for mounting. A bolt hole 58 is provided in the lower inside of the annular cutter case 53 fixed to the cutter head 52.
The four brackets 59 having the above are provided at positions so as not to interfere when the disc cutter device 50 is inserted into the cutter case 53 in the state of FIG.

Next, a procedure for attaching the disc cutter device 50 to the cutter head 2 will be described. (1) First, as shown in FIG. 15, the disc cutter device 5
The rotation axis direction of 0 is made to coincide with the XX axis direction of the cutter case 53 and inserted into the cutter case 53. (2) Next, the rotational axis direction of the disc cutter device 50 is changed to
90 from the XX axis direction of the cutter case 53 in the arrow S direction
The disc cutter device 5 is rotated by rotating it to the state shown in FIG.
The lower surface of the bearing portion 56 of No. 0 is brought into contact with the upper surface of the bracket 59 of the cutter case 53, and the position of the female screw 57 is adjusted to the bolt hole 5.
Set to 8. (3) Next, as shown in FIG. 17, the disc cutter device 50 is fastened to the cutter case 53 with the bolt 61 via the key member 60.

Next, a second conventional technique shown in FIG. 18 will be described. A pair of flanges 72a on the cutter head 72,
72b are provided side by side, one flange 72a is provided with a non-circular mounting hole 71 into which the non-circular support shaft 76a of the disc cutter device 75 is fitted, and the other flange 72b is provided with a female screw 7
3a, a keyhole-shaped mounting hole having a cutout 76c through which the circular support shaft 76b of the disk cutter device 75 can pass is provided, and a male screw 73b to be screwed into the female screw 73a is formed, and the circular support shaft 76b is A mounting member 77 having a mounting hole 74 for fitting is provided. When attaching the disc cutter device 75 to the cutter head 72,
After one shaft 76a of the disc cutter device 75 is fitted into the non-circular mounting hole 71 of the one flange 72a and the other shaft 76b is inserted into the keyhole-shaped mounting hole, the mounting member 77 is attached.
While inserting the other shaft 76b into the circular mounting hole 74, the male screw 73b of the pressing plate 77 is fastened to the female screw 73a of the other flange 72b.

[0006]

However, the above-described prior art configurations have the following problems. (1) In the first prior art, the disc cutter device 50 is fastened to the cutter case 53 with bolts 61, and in the second prior art, the female screw 73a of the flange 72b is attached to the pressing plate 7.
Since the disk cutter device 75 is attached to the cutter head 72 by tightening the male screw 73b of No. 7, the replacement work of the disk cutter device is performed in a bad working environment and in the restricted space, the bolt 61 and the male screw of the holding plate 77 are replaced. Since the work of tightening and removing 73b has to be done manually, there is a problem that the work becomes troublesome for a long time, and the quality control for the tightening torque of the screw part becomes unstable. This has a problem that the degree of the bolt 61 and the screw of the pressing plate 77 are further increased when the screw is rusted. (2) In both the first conventional technology and the second conventional technology, it is difficult to automate the replacement work of the disc cutter device because the work of tightening and removing the screw is required to attach the disc cutter device to the cutter case. Was becoming. (3) Disc cutter device 50 according to the first conventional technique
In order to attach / detach the disc cutter device 53 to / from the cutter case 53, it is necessary to rotate the disc cutter device 50 by 90 ° with respect to the cutter case 53. Therefore, if a gap is fixed between the disc cutter device 50 and the cutter case 53 during work, the disc cutter device 50 may be rotated. It became difficult to rotate the device 50 in the cutter case 53, and it took a lot of time to replace the disc cutter device 50.

The present invention has been made in view of the above problems, and the disc cutter device can be easily exchanged, the exchange work time is short, and the disc cutter device can be easily automated. It is intended to provide a mounting device for a cutter.

[0008]

In order to achieve the above object, the first invention of the present application is a disk cutter,
A disc cutter mounting device for mounting a disc cutter device comprising a bearing portion for supporting the disc cutter device to a cutter head of a tunnel machine, a fixing member for fixing and releasing the disc cutter device to the cutter head, and the fixing member. In a device for mounting a disk cutter, the engaging device engaging the fixing member with the engaging portion in order to actuate the fixing member so that the fixing member can be fixed and released. It is characterized by comprising a release actuating means for releasing the engagement between the fixing member and the engaging portion.

According to the first aspect of the invention, the disc cutter device is fixed to the cutter head by the engagement actuating means for engaging the fixing member with the engaging portion, and the engagement between the fixing member and the engaging portion is released. The actuating means releases the disc cutter device from the cutter head. Therefore, since the disc cutter device can be fixed / released to / from the cutter head by the engagement actuating means and the releasing actuating means, only the work of inserting the disc cutter device into the cutter head or removing the disc cutter device from the cutter head is required. Fixing / unfixing work of the cutter device becomes easy and can be done in a short time. Further, the engagement actuating means and the disengaging actuating means can be operated remotely.

The second invention of the present application is characterized in that the engagement actuating means in the first invention is means for constantly urging the fixing member toward the engaging portion.

According to the second aspect of the invention, since the fixing member is always urged to the engaging portion, the fixing member is moved to the engaging portion side only by inserting the disc cutter device, and the disc cutter device becomes the cutter head. Fixed to. Further, even if the cutter head and the disk cutter device vibrate due to the excavation work, the fixation of the cutter head and the disk cutter device can be reliably prevented from being released.

A third invention of the present application is characterized in that the engagement actuating means in the first invention is a means for urging the fixing member toward the engaging portion as necessary.

According to the third aspect of the invention, when the disc cutter device is assembled into the cutter head, the fixing member is not biased toward the engagement side, and after the disc cutter device is assembled into the cutter head, the fixing member is engaged toward the engagement side. Energize. With this configuration, the disc cutter device can be easily assembled, and after the assembly, the disc cutter device can be securely fixed to the cutter head.

A fourth invention of the present application is characterized in that, in the first to third inventions, a positioning means for the disk cutter device is provided when the disk cutter device is mounted on the cutter head.

According to the fourth aspect of the invention, the fixing member and the engaging portion are aligned with each other by mounting the disc cutter device on the cutter head until the disc cutter device hits the positioning means. Therefore, the work of mounting the disc cutter device on the cutter head becomes easy.

According to a fifth aspect of the present invention, the positioning means of the fourth aspect is a stopper with which the disc cutter device abuts at a predetermined position in the direction in which the disc cutter device is mounted on the cutter head or in the opposite direction. Is characterized by.

According to the fifth aspect of the invention, when the disc cutter device is inserted into the cutter head, the disc cutter device is brought into contact with the stopper provided on the cutter head to align the fixing member with the engaging portion. Done. A stopper may be provided in the disk cutter device instead of the cutter head. Therefore, the work of mounting the disc cutter device on the cutter head becomes easy. Further, by bringing the disk cutter device into contact with the stopper, the fixing member and the engaging portion are aligned with each other, and the stopper can also be used by the mounting frame of the disk cutter device. Therefore, it is not necessary to install a special stopper, the structure can be simplified, and the work of mounting the disc cutter device on the cutter head becomes easy. Further, since the large thrust acting on the disc cutter device can be received during the excavation work, the engagement device can be made smaller.

The sixth invention of the present application is characterized in that, in the first to fifth inventions, rotation stopping means is provided to prevent the disk cutter device from rotating in the cutter head.

According to the sixth aspect of the present invention, the rotation of the disc cutter device is stopped, the positioning of the fixing member and the engaging portion is facilitated, and the disc cutter device which is generated during the excavation work is rotated to rotate. The torque can be received by this rotation stopping means.

The seventh invention of the present application is characterized in that the rotation stopping means of the sixth invention is partially planar at the position where the disk cutter device and the cutter head come into contact with each other.

According to the seventh aspect of the invention, if the rotation stopping means of the disk cutter device is formed into a flat shape at the position where the disk cutter device and the cutter head come into contact with each other, it is not necessary to provide any special rotation stopping means, and the structure is simplified. Can be converted. The planar shape may be a curved line or a combination of a plurality of planar shapes.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a disc cutter mounting apparatus according to the present invention will be described in detail below with reference to the drawings of FIGS.

First, a first embodiment of the disc cutter mounting apparatus according to the present invention shown in FIGS. The disc cutter device 10 includes a disc cutter 11 and a pair of bearing portions 12 that rotatably support the disc cutter 11 about an axis XX. The outer surface of
The flat surface portion 13 is formed at a right angle to the rotation axis of the disk cutter 11, and two knock pin holes 14 are formed on the lower portion of the outer surface of the disk cutter 11 in parallel to the axis XX, two engaging portions on each side. There is. On the inner surface of the substantially annular cutter case 15 fixed to the cutter head 2, the flat surface portion 1 of the bearing portion 12 is provided.
3 are provided so as to be opposed to each other, and at the positions corresponding to the knock pin holes 14 of the bearing portion 12, two right and left knock pins 23 as fixing members are projected and retracted in the knock pin holes 14. An engaging device 20 for fixing or releasing the disk cutter device 10 to the cutter head 2 is provided.

FIG. 3 is a detailed view of the engagement device 20 showing the portion P in FIG. Cylinder 2 fixed to cutter case 15
1, a piston 22 having a knock pin 23 at its tip is slidably inserted, and a spring 24 arranged on the head side of the piston 22 always keeps the right direction (knock pin 2) in the figure.
3 is urged toward the knock pin hole 14). In the state shown in FIG. 3, the knock pin 23 is fitted in the knock pin hole 14 of the bearing portion 12 of the disc cutter device 10. A hydraulic chamber 25 is formed between the base end portion of the cylinder 21 and the piston 22, and an oil passage 26 is provided from a hydraulic device (not shown).
The pressure oil is supplied through this. That is, when pressure oil is supplied from the oil passage 26 to the hydraulic chamber 25,
The piston 22 compresses the spring 24 and moves to the left in the figure (the direction in which the knock pin 23 is pulled out), and when the knock pin 23 reaches the position of the chain double-dashed line, the engagement between the cutter case 15 and the disc cutter device 10 is released. .

As shown in FIG. 1, a disc cutter device 1
Since the flat surface portion 13 of the bearing portion 12 of 0 is fitted into the flat surface portion 16 of the cutter case 15, it serves as a guide when the disc cutter device 10 is inserted into the cutter case 15, and
It serves as a rotation stopping means in the direction of force for rotating the disk cutter device 10. That is, the disc cutter device 1
The rotation torque that tends to turn 0 is reliably received by the flat portions 13 and 16. Further, the large thrust applied to the disc cutter device 10 can be reliably received by the four knock pins 23 fitted in the knock pin holes 14 of the disc cutter device 10.

As shown in FIG. 2, a step portion 17 is provided at the upper end of the flat portion 16 of the cutter case 15, and when the disc cutter device 10 is inserted into the cutter case 15 from inside the tunnel excavator, The step portion 18 provided on the bearing portion 12 of the disk cutter device 10 abuts and serves as a means for determining the position in the inserting direction. In this manner, the knock pin 23 is formed so as to match the position of the knock pin hole 14 in a state where the step portion 18 of the bearing portion 12 is in contact with the stepped portion 17 of the cutter case 15. In this embodiment, since the knock pin 23 is always urged by the spring 24 in the direction to be fitted into the knock pin hole 14, the knock pin 2 does not necessarily have to be formed with the step portions 17 and 18.
3 can be fitted when the position of the knock pin hole 14 is fitted.

Next, a procedure for replacing the disc cutter device 10 will be described. (1) As shown in FIG. 3, pressure oil is supplied to the engaging device 20 by a hydraulic device (not shown), the piston 22 is moved to the position of the chain double-dashed line, and the knocking pin 23 causes the disc cutter device 10 and the cutter case 15 to move. Disengage the. (2) Next, the old disk cutter device 10 is pulled out from the cutter case 15 into the tunnel machine. (3) Thereafter, while the flat surface portion 13 of the bearing portion 12 of the disk cutter device 10 and the flat surface portion 16 of the cutter case 15 are fitted and positioned, the new disk cutter device 1
0 from the inside of the tunnel machine to the step portion 18 of the bearing portion 12.
Is inserted until it contacts the stepped portion 17 of the cutter case 15. (4) Next, the hydraulic device is operated to discharge the pressure oil supplied to the engagement device 20. The piston 22 is a spring 24
Is moved to the right by the force of, the knock pin 23 is fitted into the knock pin hole 14 of the bearing portion 12 of the disc cutter device 10, and the disc cutter device 10 is fixed to the cutter case 15. In addition, the disk cutter device 10 is attached to the cutter case 1
Since a hydraulic device is used to fix and release the disc cutter device 5, remote operation is possible, and replacement work of the disc cutter device 10 under adverse environmental conditions is further facilitated.

The engaging device 30 of the second embodiment shown in FIG. 4 will be described. A description of the same parts as those in the first embodiment will be omitted, and different parts will be described. A piston 32 having a knock pin 33 at its tip is slidably fitted into a cylinder 31 fixed to the cutter case 15, and the piston 32 is always leftward in the drawing (the direction in which the knock pin 33 is pulled out) by a spring 34. Being energized. A hydraulic chamber 35 is formed on the head side of the piston 32, and pressure oil is supplied from a hydraulic device (not shown) through an oil passage 36. When the knock pin 33 is fitted into the knock pin hole 14 of the bearing portion 12 of the disc cutter device 10 and the disc cutter device 10 is fixed to the cutter head 2, pressure oil is supplied to the hydraulic chamber 35 from a hydraulic device (not shown), and the piston 32 is moved in the inserting direction of the knock pin 33. When the fixing of the disc cutter device 10 to the cutter head 2 is released, the pressure oil in the hydraulic chamber 35 is discharged, and the piston 32 is moved leftward by the force of the spring 34 to pull out the knock pin 33 from the knock pin hole 14.

The third to seventh embodiments of the disc cutter mounting apparatus according to the present invention shown in FIGS. 5 to 13 will be described.
In the following description, the engagement device 20 of the first embodiment will be described.
The engagement device 30 of the second embodiment will be described below.
But needless to say. The description of the same components as in the first embodiment will be omitted, and only different parts will be described.

A third embodiment shown in FIGS. 5 and 6 will be described. The rotation axis X- of the disk cutter device 10a is provided in the vicinity of the flat portions 16 provided on both side surfaces of the cutter case 15a.
Four engagement devices 20a are arranged in a direction perpendicular to X. Therefore, the pair of bearings 1 of the disk cutter device 10a
The 2a is provided with a knock pin hole 14a in a direction perpendicular to the rotation axis XX of the disc cutter device 10a, and the knock pin 23a of the engaging device 20a is fitted therein. The third embodiment is effective because the installation length can be shortened when the disc cutter devices 10a are arranged in parallel in the rotation axis XX direction of the disc cutter device 10a. The operation of each part, the replacement procedure, and the like are the same as those in the first embodiment, and the description thereof will be omitted.

A fourth embodiment shown in FIG. 7 will be described.
The flat surface portion 16b of the cutter case 15b is tapered at the upper portion, and the flat surface portions 13b on both side surfaces of each bearing portion 12b of the disk cutter device 10b are also formed in the same taper so as to fit into the flat surface portion 16b. ing. Each flat part 13
When the tapered portions of both b and 16b are fitted, the position of the disc cutter device 10b in the insertion direction is determined, and the knock pin 23b of the engagement device 20b is configured to be fitted into the knock pin hole 14b of the disc cutter device 10b. ing.

A fifth embodiment shown in FIGS. 8 and 9 will be described. As shown in FIG. 8, the cutter case 15c has a circular shape, and the outer surface of each bearing 12c in the rotation axis direction of the disk cutter device 10c is also formed into a circular shape that fits into the inner diameter of the cutter case 15c. Cutter case 15c
Four brackets 19 are provided in the lower portion of the bracket 19. The brackets 19 are formed at positions where they do not interfere with each other when the disk cutter device 10c is at the position indicated by the chain double-dashed line. Then, the upper surface of the bracket 19 contacts the lower surface of the bearing portion 12c to position the movement of the disk cutter device 10c inward of the tunnel machine. And cutter case 1
Four engaging devices 20c are installed below 5c in parallel to the rotation axis of the disk cutter device 10c as in the first embodiment, and the lower surface of the bearing portion 12c of the disk cutter device 10c is the upper surface of the bracket 19. When it comes into contact with the knock pin 23c of the engagement device 20c and the disc cutter device 10
It is formed so that the position of the knock pin hole 14c of c is matched.

When the disc cutter device 10c is attached to the cutter case 15c, the disc cutter device 10c is inserted between the inside of the tunnel machine and the bracket 19 of the cutter case 15c as shown by the chain double-dashed line in FIG. After that, it is rotated by 90 ° and moved to the position shown by the solid line, the lower surface of the bearing portion 12c of the disk cutter device 10c is brought into contact with the upper surface of the bracket 19 of the cutter case 15c, and the disk cutter device 10c in the cutter case 15c.
Rock the knock pin 23c and knock pin hole 14c.
, The knock pin 23c is always urged in the direction of the knock pin hole 14c.
Is fitted into the knock pin hole 14c, and the disc cutter device 10c is fixed to the cutter case 15c. Therefore, the thrust applied to the disk cutter device 10c during tunneling is received by the bracket 19, and the torque acting around the thrust direction of the cutter head device 10c is received by the knock pin 23 of the engagement device 20c.

A sixth embodiment shown in FIGS. 10 and 11 will be described. The difference from the fifth embodiment is that the engagement device 20
Only the part where the mounting direction of d is a position perpendicular to the rotation axis X-X of the disk cutter device 10d, and the other parts are the same, the description thereof will be omitted.

A seventh embodiment shown in FIGS. 12 and 13 will be described. Unlike each of the above embodiments, the bearing portion 12e of the disk cutter device 10e is not provided with a knock pin hole, and instead, the lower end flat portion 38 is formed on the lower surface of the bearing portion 12e. Two cylinders 21e are fixed to the lower outer side of the cutter case 15e, and four engagement devices 20e are formed on the cylinder 21e. A slider 3 is attached to the piston 22e fitted in the cylinder 21e.
7, the slider 37 is composed of a slider columnar portion 37a that engages with the cylinder 21e, a lower end flat portion 38 of the bearing portion 12e, a cutter case 15e, and a cylinder 21e fixed thereto. The slider two-face width portion 37b is engaged with the two-face width portion. The other structure is similar to that of the first embodiment shown in FIGS. 1 to 3 and will be described. The cross section of FIG. 13 is taken along line A of FIG.
3A shows a cross section.

Next, a procedure for replacing the disc cutter device 10e will be described. (1) As shown in FIG. 12, when pressure oil is supplied to the hydraulic chamber 25e of the engagement device 20e by a hydraulic device (not shown) and the piston 22e is moved to the left end, the slider double width portion 37b causes the disk cutter The disc cutter device 10e is disengaged from the cutter case 15e because it is disengaged from the lower end flat surface portion 38 formed on the bearing portion 12e of the device 10e. (2) Next, the old disk cutter device 10e is pulled out from the cutter case 15e into the tunnel machine. (3) After that, the new disc cutter device 10e is inserted from inside the tunnel machine until the step portion 18e of the bearing portion 12e contacts the stepped portion 17e of the cutter case 15e. (4) Next, when the hydraulic oil (not shown) is operated to discharge the pressure oil supplied to the engagement device 20e, the pinton 22e
Moves to the right due to the force of the spring 24, and the slider double-width portion 37b moves to the bearing portion 12e of the disk cutter device 10e.
The disk cutter device 10e is fixed to the cutter case 15e because it engages with the lower end flat surface portion 38 formed on the.
The other operations are similar to those of the first embodiment shown in FIGS. In this embodiment, the large thrust applied to the disc cutter device 10e is the disc cutter device 1
It can be reliably received by the four slider two-face width portions 37b that engage with the lower end flat surface portion 38 of the bearing portion 12e of 0e.

Engaging device 2 in the above first to seventh embodiments
0, 20a, 20b, 20c, 20d, 20e, 30
, The one that operates by the spring 24 and hydraulic pressure has been described. However, instead of the spring 24, an elastic body such as rubber may be used, and if it can be remotely operated other than hydraulic pressure, hydraulic pressure, electromagnetic force, push-pull wire, etc. But it doesn't matter. Further, in each of the above-described embodiments, the knock pins 23, 23a, 23b, 23c, 3 which are the fixing members.
3 is a cutter case 15, 15a, 15b, 15c, 15
Although mounted on the e side, the disc cutter device 10, 1
It may be mounted on the side of 0a, 10b, 10c, 10d, 10e. In addition, the disc cutter device 10,
When the 10a, 10b, 10c, 10d and 10e are fitted into the cutter case 15, 15a, 15b, 15c and 15e, the positioning is facilitated by bringing them into contact with the stoppers 17, 17e and 19 in the inserting direction, and the rotating direction Since the positioning can be performed, the assembling work is extremely easy and can be performed in a short time. And the cutter cases 15, 1
The disk cutter device 10, 10a, 10b, 10c, 10d, 10e can be fixed / released to / from 5a, 15b, 15c, 15e by remote control, and the disk cutter device 10, 10a, 10b, 10c, 10d, 10e can be replaced. It is possible to obtain a device for mounting a disc cutter that can be one step closer to automation of work.

[Brief description of drawings]

FIG. 1 is a first part of a disk cutter mounting device according to the present invention.
It is a top view of an example.

FIG. 2 is a longitudinal sectional view of FIG.

FIG. 3 is a detailed sectional view of a P part of FIG.

FIG. 4 is a cross-sectional view of the essential parts of a second embodiment of a disk cutter mounting device according to the present invention.

FIG. 5 is a third part of the device for mounting a disc cutter according to the present invention.
It is a top view of an example.

FIG. 6 is a longitudinal sectional view of FIG.

FIG. 7 is a fourth view of the disk cutter attaching device according to the present invention.
It is a longitudinal section of an example.

FIG. 8 is a fifth embodiment of the disc cutter attaching apparatus according to the present invention.
It is a top view of an example.

FIG. 9 is a longitudinal sectional view of FIG.

FIG. 10 is a plan view of a sixth embodiment of a disc cutter attaching apparatus according to the present invention.

11 is a longitudinal sectional view of FIG.

FIG. 12 is a vertical cross-sectional view of a seventh embodiment of the disc cutter attaching apparatus according to the present invention.

13A is a bottom view of FIG. 12, and FIG. 13B is a sectional view taken along line BB of FIG.

FIG. 14 is a vertical cross-sectional view showing a state when the disk cutter of the tunnel machine according to the first conventional technique is replaced.

FIG. 15 is a plan view showing a state in which the disc cutter mounting device according to the first conventional technique is inserted.

16 is a plan view of the disc cutter of FIG. 15 when it is fastened.

17 is a longitudinal sectional view of FIG.

FIG. 18 is a vertical cross-sectional view of a disc cutter attaching device showing a second conventional technique.

[Explanation of symbols]

2 ... Cutter head 10, 10a, 10b, 10c, 10d, 10e ... Disc cutter device 11 ... Disc cutter 12, 12a, 12b, 12c, 12e ... Bearing part 13, 13b, 13e ... Plane part 14, 14a, 14b, 14c ... knock pin hole 15, 15a, 15b, 15c, 15e ... cutter case 16, 16b, 16e ... plane part 17, 17e ... stepped part 18, 18e ... step part 19 ... bracket 20,20a, 20b, 20c, 20d, 20e , 30
... Engaging device 21, 21e, 31 ... Cylinder 22, 22e, 32 ... Piston 23, 23a, 23b, 23c, 33 ... Knock pin 24, 34 ... Spring 25, 25e, 35 ... Hydraulic chamber 26, 36 ... Oil passage 37 ... Slider 37a ... Slider cylinder portion 37b ... Slider flat width portion 38 ... Lower end flat portion

Claims (7)

[Claims] 1. A disc cutter mounting device for mounting a disc cutter device comprising a disc cutter and a bearing portion supporting the disc cutter to a cutter head of a tunnel machine, wherein the disc cutter device is fixed and fixed to the cutter head. In a disc cutter mounting device comprising a fixing member for releasing and an engaging portion with which the fixing member engages, the fixing member is engaged with the engaging portion in order to actuate the fixing member so that the fixing member can be fixed and released. An attachment device for a disc cutter, comprising: engagement actuating means for engaging with each other; and disengagement actuating means for releasing the engagement between the fixing member and the engaging portion. 2. The attachment device for a disc cutter according to claim 1, wherein the engagement actuating means is a means for constantly urging the fixing member toward the engaging portion. 3. An attachment device for a disk cutter according to claim 1, wherein the engagement actuating means is means for urging the fixing member toward the engaging portion as necessary. 4. The disc cutter mounting device according to claim 1, wherein when the disc cutter device is mounted on the cutter head, a positioning means for the disc cutter device is provided. 5. The disk according to claim 4, wherein the positioning means is a stopper with which the disk cutter device abuts at a predetermined position in the direction in which the disk cutter device is mounted on the cutter head or in the opposite direction. Cutter attachment device. 6. The device for mounting a disk cutter according to claim 1, further comprising rotation stopping means for preventing the disk cutter device from rotating in the cutter head. 7. The device for mounting a disk cutter according to claim 6, wherein the rotation stopping means has a partially planar shape at a position where the disk cutter device and the cutter head come into contact with each other.