JP2003065000A - Moving device of continuous belt conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent malfunction due to meandering by dispensing with replacement and extension every movement and gently changing curvature of a curved part of a conveyor belt at a boundary position or the like of primary and secondary lining. SOLUTION: In a device supporting a continuous belt conveyor device 20 and capable of movement along a side wall of a tunnel 1, a pair of gate frames 22 orthogonal to a frame 30 of the conveyor device 20 and arranging a installing base 29 supporting it at a top part are connected and integrated with a coupling lever 23 to be made a box-like frame, and a number of moving units 21 which can be moved by providing a caster 26 on a lower part of a leg part 24 of the gate frame 22 are arranged along the side wall of the tunnel 1 at proper intervals.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving device for a continuous belt conveyor.

[0002]

2. Description of the Related Art FIGS. 4 and 5 show a general arrangement of a conventional continuous belt conveyor. In the figure, face 1a in tunnel 1
The backup deck 2 is located on one side near the
At the rear of the backup deck 2, a long-distance belt conveyor device 4 that extends past the side of the seat carriage 3 is arranged along the side wall via a plurality of support racks 4a, and the gap generated by the cutting face 1a is removed. It is delivered to the conveyor device 4 side through the backup deck 2 and is continuously conveyed to the wellhead side by its traveling drive. Although the conveyor device 4 is depicted on both the left and right sides in FIG. 5, it is actually disposed on only one side. The above conveyor device 4 is as close to the side wall as possible,
It is necessary to make effective use of the inside of the tunnel 1.

However, in the tunnel 1, in the primary lining section 1b in which only sprayed concrete is applied and in the secondary lining section 1c subsequent to which concrete is further applied, the placement thickness d Therefore, when the diameter of the tunnel 1 becomes small and the conveyor device 4 is arranged along the side wall, the conveyor device 4 is displaced in the radial direction by a minimum of about 800 mm at the passage positions of both sections 1a and 1b. Occurs.

Therefore, it is necessary to draw the tip of the conveyor device 4 which has passed the sheet carriage 2 toward the face 1a toward the wall surface of the primary lining section 1a. As described above, disposing the conveyor device 4 closer to the wall means bending the conveyor, and if a sharp bend occurs in a short section, it causes the belt to meander. Therefore, in order to correct this meandering, many roller stands with a self-centering device must be used.

FIG. 6 shows a roller stand 5 with self-centering, which comprises an inverted trapezoidal frame 8 rotatably mounted on a base 6 via pins 7, and a frame. 8, a three-tank carrier roller 9 composed of a horizontal roller rotatably provided on the roller 8 and rollers which are inclined to the left and right of the roller, and bearings arranged on the outer side of the rollers 9 on both sides perpendicularly to the frame 8. Both sides of the conveyor belt 11 passing through this position are guided by the aligning roller 10 and pushed inward to be directed toward the center side, thereby preventing meandering. . Also,
The roller stand 4 itself rotates left and right around the pin 7 to counteract the force of the belt 11 to move straight.

[0006]

However, since the roller stand 5 is heavy, the roller stand and the support stand must be re-arranged or added every time the seat carriage is moved, which is troublesome for the work. It was hanging.

The present invention is intended to solve the above problems, and an object thereof is to eliminate the need for reassembling for each movement, and to bend the conveyor belt at the boundary position between the primary shoe and the secondary lining. The present invention provides a moving device for a continuous belt conveyor, in which the curvature of the can be gently changed and a problem due to meandering can be prevented.

[0008]

In order to achieve the above object, the present invention is a device for supporting a continuous belt conveyor device and movable along a tunnel side wall,
A pair of gate-shaped frames having an installation stand arranged at the top orthogonal to the frame of the conveyor device and supporting it are connected and integrated by a connecting rod to form a box-shaped frame, and wheels such as casters are attached to the lower part of the legs. It is characterized in that a large number of movable units provided and arranged are arranged at appropriate intervals along the side wall of the tunnel. Therefore, according to the present invention, since the moving unit moves while keeping an appropriate interval as the distance of the conveyor device is extended, construction work such as extension and reshuffling due to the distance extension is unnecessary, and removal work is also simplified.

According to the present invention, since the upper part of the leg portion of the moving unit can be expanded and contracted by the cant adjusting jack, it is possible to cope with the unevenness of the traveling surface and to maintain the levelness between the upper parts of the moving units. .

Further, according to the present invention, since the wheels are casters with stoppers, the fixing can be surely performed when the conveyor device is driven.

Further, in the present invention, since the installation table is fixed so as to be movable left and right on the moving unit, the conveyor device can be positioned at a position closest to the tunnel side wall, and the units are connected between the units. By adjusting the amount of movement, the conveyor belt can be bent with a gentle curvature, and a roller stand with self-centering is not necessary.

[0012]

Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Figure 1
FIG. 3 is a side view showing the overall configuration of the moving device of the present invention.
In the figure, the conveyor device 20 is installed on a large number of moving units 21 arranged along the side wall of the tunnel.

In each moving unit 21, the upper portions of a pair of gate frames 22 used for scaffolding and the like are connected and integrated by a connecting rod 23, and a reinforcing brace 25 is hung between the leg portions 24 of the gate frame 22. It is framed in a box shape and arranged in a large number along the side wall of the tunnel 1.

A caster with a stopper 26 as a wheel is arranged at the bottom of the leg portion 24 which constitutes each gate frame 22. This allows the unit 21 to move, and further, the lower portion of the leg portion 24 is uneven. By providing a corresponding jack 27 and arranging a cant adjusting jack 28 on the upper side, the expansion and contraction can be adjusted.

Further, on the uppermost part of the leg portion 24, an installation table 29 is provided.
Is arranged, and the frame 30 of the conveyor device 20 is installed on the upper part thereof.

As shown in FIGS. 1 and 2, the conveyor device 20 includes a pair of left and right frames 30 installed on an installation table 29, a return roller 31 bearing at appropriate intervals between the frames 30, and a frame. It consists of a three-tank carrier roller set 32 arranged between the upper parts of the 30 and the conveyor belt 33 runs on the return roller 31 to the front side, receives the excavation slip from the above-mentioned backup deck, and then reverses the carrier. It runs on the roller set 32 to the rear side.

Next, the detailed structure of the installation table 29 will be described with reference to FIG. In the figure, the installation table 29 includes a connecting plate 35 having both ends fixed on flanges 34 provided on shaft tops of the pair of cant adjusting jacks 28, and a connecting plate 3 respectively.
Slide bar 36 placed on the upper part of 5 so as to be movable left and right
And a mounting table main body 37 which is symmetrically fixed to the upper part of the slide bar 36 and supports the frame 30 of the conveyor device 20.

An elongated hole 38 is provided in the left-right direction at the center of the connecting plate 35.
Is formed, and the slide bar 36 is fastened through the elongated hole 38 by three bolts 39. A guide plate 40 for sandwiching both side surfaces of the slide bar 36 on the left and right of the upper portion of the connecting plate 35 to guide the slide bar 36 so that the slide plate 36 can move left and right.
Is erected. The slide bar 36 is made of, for example, hollow square steel, and is formed at equal intervals by vertically passing through bolt holes 41 connected to the bolts 39.

Each installation table body 37 is rotatably supported by a plate 42 fixed to the slide bar 36 and a bearing frame 43 arranged on the plate 42 so that the frame 30 can be moved in the longitudinal direction. It is composed of a plurality of horizontal guide rollers 44 installed and a vertical guide roller 45 rotatably erected on the plate 42 and guiding the side surface of the frame 30 in a restrained state.

In the above structure, the bolt 39 for fastening the connecting plate 35 and the slide bar 36 is loosened, the slide bar 36 is moved to the left or right as shown by the arrow, and then the bolt 39 is tightened again. It is possible to adjust the movement to. Therefore, the slide bar 36 can be adjusted according to the degree of separation and contact of the moving unit 21 with respect to the side wall of the tunnel 1.

3 (a) to 3 (c) show the degree of adjustment. In FIG. 3 (a), the center of the conveyor unit 20 in the width direction coincides with the center of the moving unit 21 in the width direction.
The conveyor device 20 is appropriately approaching the side wall of the. Further, (b) shows a state in which the moving unit 21 is too close to the side wall, and for this reason, the installation table 29 is moved and adjusted toward the center of the tunnel to adjust the gap between the conveyor device 20 and the side wall to an appropriate interval. Shows. Further, (c) shows a state where the moving unit 21 is distant from the side wall. Therefore, the installation table 29 is moved and adjusted to the side wall side to adjust the gap between the conveyor device 20 and the side wall to an appropriate interval and cant adjustment. An appropriate cant amount according to the curvature is given to the installation table 29 by the jack for use 28.

By the above adjustment, the conveyor belt meanders, but by adjusting the adjustment amount for each moving unit 21 to an appropriate value, a gentle meandering state is achieved, and the roller with the self-centering device shown in FIG. Even if a normal roller stand is used without using the stand, the belt running will not be hindered.

Further, the above-mentioned moving unit 21 can be fixed at that position by applying a stopper to the caster 26 during normal use, and can be easily moved manually by removing the stopper when moving. The unevenness at another moving place and the levelness between the units are adjusted by operating the jacks 27 and 28 up and down.

Therefore, as the distance of the conveyor device 21 is extended, the conveyor device 20 can be moved while maintaining the distance between the moving units 21 appropriately, and the previously assembled moving unit 21 can be replenished to the conveyor device 20. There is no need to add or relocate a gantry, etc., and the work can be simplified. It is also easy to remove after construction.

[0025]

As is apparent from the above description, according to the moving apparatus for the continuous belt conveyor of the present invention, it is not necessary to resize or add each movement, and the boundary position between the primary and secondary linings, etc. The curvature of the bent portion of the conveyor belt in can be changed gently, and problems due to meandering can be prevented.

[Brief description of drawings]

FIG. 1 is a side view showing an overall configuration of a moving device of the present invention.

2A and 2B are a plan view, a front view, and a B view showing the installation table.

FIG. 3A to FIG. 3C are front views showing adjustment of left and right movement of the installation base in the moving unit.

FIG. 4 is an explanatory plan view showing a general arrangement of a continuous belt conveyor device.

5 is a cross-sectional view taken along the line AA of FIG.

FIG. 6 is a front view of a roller stand with self-centering.

[Explanation of symbols]

1 tunnel 20 Conveyor device 21 Mobile unit 22 Gate frame 23 Connection pipe 24 legs 26 Casters with stopper 27 Jack for non-terrain 28 Jack for cant 29 installation stand 30 frames

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Mitsumasa Ogasawara             2-15-2 Konan, Minato-ku, Tokyo Co., Ltd.             Obayashi Tokyo Main Office (72) Inventor Issei Taguchi             3-1 Komondo-cho, Hakata-ku, Fukuoka-shi, Fukuoka tags             Chi Industrial Co., Ltd.

Claims (4)

[Claims] 1. A pair of gates which support a continuous belt conveyor device and are movable along a side wall of a tunnel, and which are installed at the top of an installation table orthogonal to a frame of the conveyor device and supporting the frame. A large number of mobile units arranged at appropriate intervals along the side wall of the tunnel by connecting and integrating the form frames with a connecting rod to form a box-like frame, and providing wheels such as casters on the lower part of the legs to enable movement. A moving device for a continuous belt conveyor characterized in that 2. The moving device for a continuous belt conveyor according to claim 1, wherein upper portions of legs of the moving unit can be expanded and contracted by a cant adjusting jack. 3. The moving device for a continuous belt conveyor according to claim 1, wherein the wheels are casters with stoppers. 4. The moving device for a continuous belt conveyor according to claim 1, wherein the installation table is fixed on a moving unit so as to be movable left and right.