JP2842966B2 - Panel mounting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel installation machine for installing panels on a side surface and a ceiling in a tunnel.

[0002]

2. Description of the Related Art When a tunnel is constructed, mortar is blown onto the inner wall of the tunnel after the tunnel is excavated and hardened, and a concrete panel, for example, is mounted on the inner wall of the tunnel. As a conventional machine for performing this panel installation, for example, there is one described in Japanese Utility Model Laid-Open No. 1-93300. In this conventional panel installation machine, an erector device is attached to the front of a self-propelled traveling device so as to be able to move up and down and to be tiltable with respect to a horizontal plane, and the erector device has panel holding means, and the holding means is provided. It is configured to move in the horizontal direction and rotate around an axis extending in the vertical direction.

[0003]

As described above, the conventional panel installation machine has an erector device mounted on the front of the traveling device so as to be able to move up and down and to be inclined by the inclination of the mast. Since the adjustment is performed by adjusting the inclination angle of the mast, it is difficult to finely adjust the inclination of the panel, and since the body direction must be changed by running the body every time the panel is installed, the operation is not performed. However, there is a problem that it is troublesome and it is difficult to finely adjust the angle in the horizontal direction.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a panel installation machine capable of easily adjusting a posture and a position for panel installation.

[0005]

In order to achieve this object, the present invention relates to a panel installation machine for installing panels on a side surface and a ceiling in a tunnel. A body is installed, a mast is attached to the front part of the upper revolving structure so as to be tiltable back and forth, a forklift type lifting device is mounted so as to be able to move up and down along the mast, and a panel holding device is mounted to the lifting device, The holding device includes a panel holder left / right position adjusting device, a panel holder horizontal turning device, and a panel holder inclining device.

[0006]

Since the panel installation machine of the present invention is constructed as described above, when the panel is installed, the panel is connected to the panel holder, and the panel is moved by running on the lower traveling body and operating the turning device. By aligning the mast vertically and aligning the mast vertically, operating the forklift type lifting device to raise the panel, and further raising the entire forklift type lifting device along the mast using a hydraulic cylinder etc. The panel held by the panel holder is raised, and the turning device, the tilting device of the panel holding device,
Activate the left and right position adjustment device to adjust the position, orientation and inclination of the panel to finely adjust the position and position of the panel, and fix it to the inner wall of the tunnel.

[0007]

FIG. 1 is a front view showing an embodiment of a panel installation machine according to the present invention in a working state, and FIG. 2 is a side view showing an operating state. FIG. 3 is a side view of the panel installation machine of the present embodiment, FIG. 4 is a plan view, and FIG. 5 is a front view of a front attachment.

As shown in FIGS. 1 to 5, the panel installation machine is provided with an upper revolving unit via a revolving unit 2 on a lower traveling unit 1 made up of a wheel type or an infinite crawler belt as shown in FIG. For example, a main body of a self-propelled work vehicle used for a main body of a hydraulic excavator provided with the base 3 is used as a base machine, and a front attachment A of the present invention is mounted on the base machine. The front attachment A has a mounting frame 4, which is mounted on the upper swing body 3 by pins using a boom and a boom cylinder mounting pin hole.

The mounting frame 4 has a pin 6e as a center.
Due to the expansion and contraction of the hydraulic tilt cylinder 5, for example,
The mast 6 is attached to be tiltable so that it can be tilted backward by 8 degrees. The mast 6 has a structure in which left and right U-shaped channels 6a and 6b are connected by upper and lower connecting plates 6c and 6d.

Reference numeral 7 denotes a panel holding device on which a panel holder 8 for holding the panel P is mounted, and reference numeral 9 denotes a forklift type lifting device to which the panel holding device 7 is mounted. The forklift type elevating device 9 has an outer frame 10 mounted on the mast 5 so as to be movable up and down, and an inner frame 11 mounted on the outer frame 10 so as to be movable up and down. The frame 12 is mounted to be able to move up and down along the inner frame 11.

Numeral 13 denotes a hydraulic vertical cylinder mounted between the lower coupling plate 6c of the mast 6 and the outer frame 10 of the forklift type lifting device 9, which raises and lowers the lifting device 9 along the mast 6. It is.

Reference numeral 14 denotes the inner frame 1 of the forklift type lifting device 9
1 is a hydraulic lift cylinder that moves up and down with respect to the outer frame 10. A sprocket 15 is mounted on the upper part of the inner frame 11, and one end of a chain 16 hung on the sprocket 15 is attached to the outer frame 1 as shown in FIG.
0, and the other end is connected to the base frame 12 of the panel holding device 7 (18). Therefore, when the lift cylinder 14 is extended, the inner frame 1
Simultaneously with the rise of 1, the panel holder 7 is pulled up by the chain 16 due to the rise of the spoutet 15, and the base frame 12 of the panel holder 7 rises along the inner frame 11. In this case, the amount of rise of the panel holding device 7 is twice the amount of extension of the lift cylinder 14. When the lift cylinder 14 is contracted, the panel holding device 7 descends by its own weight.

Next, the panel holding device 7 is shown in FIGS. 3 to 5 and FIG. 7A which is a cross-sectional view taken along the line EE of FIG. 3, and FIG. This will be described with reference to B). As shown in FIG. 3 and FIG. 7A, two guide rods 20 are attached to the base frame 12 in parallel to the front and rear and to the left and right.
2 is slidably fitted to the guide rod 20. At the center of the base frame 12 in the front-rear direction, a hydraulic left / right slide cylinder 23 for adjusting the position of the slide plate 21 is connected to the center by a pin 24 so as to be oriented left and right, and a rod 25 projecting from both ends. To the slide plate 21 with the pin 26
It is connected and attached by. Accordingly, by supplying the pressure oil to one of the left and right oil chambers of the left and right slide cylinders 23, the rod 25 moves leftward or rightward, and the slide plate 21 moves along the guide rod 20.

A turning device 28 is provided on the slide plate 21. The turning device 28 fixes the fixed wheel 29 on the slide plate 21 and installs the turning wheel 30 on the fixed wheel 29 so as to be turned 360 degrees by the hydraulic turning motor 31.

A turning table 32 is fixed on a turning wheel 30 of the turning device 28, and the panel holder 8 is mounted on the turning table 32 so as to be tilted about a pin 33 by a hydraulic swing cylinder 34. Have been.

When the panel is installed, the panel P is mounted on the panel holder 8 as shown in FIG. 1 and fixed to the panel P in a coupling hole 8a (see FIG. 4) provided in the panel holder 8. The bolts are inserted and fixed on the panel holder 8 with nuts, conveyed by the operation of the lower traveling body 1, stop traveling when the position where the panel P is to be mounted is stopped, and the revolving device 2 is operated to activate the upper revolving body. 3, the orientation of the panel P is adjusted to the mounting direction, the tilt cylinder 5 is operated to make the mast 6 vertical, and the lift cylinder 14 of the forklift type lifting device 9 is extended, and the panel holding device 7 is moved to the panel P. 2 to the top of the inner frame 11, and the vertical cylinder 13 is extended from the position a to the position b in FIG.
By raising the panel to the position, the panel held by the panel holder is raised, and when the panel P approaches the inner wall of the tunnel, the turning device 28, the swing cylinder 34, and the left and right slide cylinder 23 of the panel holding device 8 are operated to operate the panel. The panel P is fixed to the position where the panel P is to be mounted by finely adjusting the left / right position, orientation, and inclination.

In the above operation, as shown in FIG.
The adjustment of the orientation of the panel P is easily and easily performed by the turning operation of the work implement itself by the turning device 2 by the arrow R and the turning operation of the panel holding device 7 by the operation of the turning device 28 of the panel holding device 7 by the arrow r. Can be done accurately. Also, as shown in FIG. 1, the panel can be installed while the lower traveling body 1 is oriented in the direction of the tunnel T, so that it is necessary to direct the vehicle body to the side of the tunnel T as in the conventional installation machine described above. And position adjustment becomes easy. Also, the panel holding device 7
Are lift cylinders 14 as well as upper and lower cylinders 13.
The height can be raised and lowered with a large height difference by a forklift type lifting / lowering device using the shaft 16 and the chain 16, so that the panel P can be installed at a high position even when a small base machine is used.

FIG. 8 is a plan view showing another example of the panel holder 8A. The panel holder 8A is mounted on the panel holder 8A in the front-rear direction indicated by an arrow X (that is, by the swing cylinder 34 for aligning the panel P with the tunnel wall surface). (In the direction perpendicular to the plane drawn by the tilting of the panel), the panel coupler 8e is attached so as to be adjustable in position. That is, the inner cylinder 8d is slidably fitted to the guide cylinder 8c mounted on the left and right on the frame 8b inclined by the swing cylinder 34, and the panel coupler 8e having the bolt insertion holes 8a before and after each inner cylinder 8d. Are fixed, hooks 8f are provided at the front and rear ends of each inner cylinder 8d, and a bolt 8h screwed into a nut 8g fixed to the guide cylinder 8c is pressed against the inner cylinder 8d, whereby the inner cylinder 8d is fixed to the guide cylinder 8c. It is configured as follows.

According to this structure, by connecting and pulling the chain of the chain block fixed to the existing panel or the like to the hook 8f, fine adjustment of the front and rear positions of the panel can be performed regardless of the traveling of the base machine. It can be done accurately and easily by hand.

[0020]

According to the first aspect of the present invention, the orientation of the panel can be adjusted accurately and easily by a combination of the two turning devices including the turning device of the installation machine main body and the turning device of the panel holding device. The tilt angle of the panel can be easily adjusted along the mounting surface by the tilt device of the above or the tilt device of the panel holder provided in the panel holding device. Also,
As a means for raising and lowering the panel holding device, a forklift type lifting device with a lifting amount expansion mechanism is used, and the lifting device itself is raised and lowered along the mast, so that a large lifting width can be obtained and a small machine It is possible to perform panel installation work for large tunnels. Further, since the base machine itself has the turning device, the work can be performed efficiently while the orientation of the lower traveling body is directed to the direction of the tunnel.

According to the second aspect, since the panel mount is mounted on the panel holder so that the position can be adjusted, fine adjustment of the front and rear positions of the panel can be easily performed regardless of the traveling of the base machine.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a panel installation machine according to the present invention in a working state.

FIG. 2 is a side view showing an operation state of the panel installation machine of the embodiment.

FIG. 3 is a side view of the panel installation machine of the present embodiment.

FIG. 4 is a plan view of the panel installation machine of the present embodiment.

FIG. 5 is a front view of the front attachment of the present embodiment.

FIG. 6 is a side view of the forklift type lifting device according to the present embodiment.

FIGS. 7A and 7B are a sectional view taken along the line EE and a sectional view taken along the line FF of FIG. 3, respectively.

FIG. 8 is a plan view showing an example of a mounting structure of a panel coupler to a panel holder according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lower traveling body 2 Revolving unit 3 Upper revolving unit 4 Mounting frame 5 Tilt cylinder 6 Mast 7 Mast holding device 8, 8A Panel holder 8e Panel coupler 9 Hawklift type lifting device 10 Outer frame 11 Inner frame 12 Base frame 13 Upper and lower cylinders 14 Lift Cylinder 15 Sprocket 16 Chain 20 Guide Rod 21 Slide Plate 22 Bearing 23 Left and Right Slide Cylinder 28 Swivel Device 32 Rotary Table 33 Pin 34 Swing Cylinder

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor: Norihiro Shiraiwa 1-8-3, Shimbashi, Minato-ku, Tokyo Inside Concrete Industry Co., Ltd. (72) Inventor: Masao Tanaka 1-3-8, Shimbashi, Minato-ku, Tokyo No. Japan Concrete Industry Co., Ltd. (56) References JP-A-5-248192 (JP, A) (58) Field surveyed (Int. Cl. ⁶ , DB name) E21D 11/40

Claims (2)

(57) [Claims] 1. A panel installation machine for installing panels on a side surface and a ceiling in a tunnel, wherein an upper revolving structure is installed on a self-propelled lower traveling structure via a revolving device, and a front and rear portion is provided in front of the upper revolving structure. A mast is attached so as to be tiltable, a forklift-type lifting device is mounted so as to be able to move up and down along the mast, and a panel holding device is mounted on the lifting device. The panel holding device includes a panel holder left / right position adjusting device and a panel holder. A panel installation machine comprising: a horizontal turning device; and a tilting device for a panel holder. 2. The panel installation machine according to claim 1, wherein a panel coupler is attached to the panel holder of the panel holding device so as to be adjustable in the front-rear position.