JP6533673B2 - Continuous belt conveyor height adjustment mechanism - Google Patents

Description

  The present invention relates to a height adjustment mechanism of a continuous belt conveyor.

  As a support mechanism of a continuous belt conveyor for transporting excavated soil in a tunnel, a bracket is projected laterally from a working carriage installed in the tunnel, and the bracket horizontally supports the continuous belt conveyor by this bracket (See, for example, Patent Document 1).

In a watertight tunnel construction site, the floor surface on the face side is lower than the installation base surface, so the tailpiece of the continuous belt conveyor is positioned lower than the horizontal section.
Thus, when the horizontal section of the continuous belt conveyor and the height of the tailpiece are different, the inclined base is installed on the floor surface of the tunnel, and the continuous base is supported by the inclined base to make the continuous belt conveyor The height is adjusted (see, for example, Patent Document 2).

Japanese Patent Application Publication No. 2000-025933 Unexamined-Japanese-Patent No. 2014-060652

Since equipment such as a ventilation cart is installed near the face of the tunnel, it is difficult to secure the installation space of the inclined mount on the floor surface of the tunnel. And, when trying to install the tilt stand in a limited space, it is necessary to narrow the width of the tilt stand, and the ratio of the height dimension to the width dimension of the tilt stand becomes large, so it is difficult to stabilize the tilt stand. There is a problem of
In addition, there is a problem that the operation of moving the inclined base becomes complicated when extending the continuous belt conveyor as the tunnel is being dug.

  The present invention solves the above-mentioned problems and provides a height adjustment mechanism of a continuous belt conveyor which can stably support the continuous belt conveyor and can increase the working efficiency when extending the continuous belt conveyor. It will be an issue.

In order to solve the above problems, the present invention is a height adjustment mechanism of a continuous belt conveyor installed in a tunnel, comprising: an inclined frame supported by a work carriage installed in the tunnel; and a tail on a face side A piece carriage is installed, and includes a suspension member suspended from an arm of the tailpiece carriage . The upper surface of the inclined frame is inclined such that the face side is disposed lower or upper than the wellhead side, the continuous belt conveyor is mounted on the upper surface of the inclined frame, and the suspension member is the inclined frame And the tailpiece carriage support the continuous belt conveyor.

In the present invention, the height of the continuous belt conveyor is adjusted by placing the continuous belt conveyor on the upper surface of the inclined frame. And since the inclination frame is supported by the work carriage, the continuous belt conveyor can be stably supported.
Further, in the present invention, since the inclined frame is supported by the work carriage, it is not necessary to secure the installation space of the inclined frame on the floor surface of the tunnel, and the inclined frame can be miniaturized.
Further, in the present invention, when the continuous belt conveyor is extended, the inclined frame can be moved together with the work carriage, so that the work efficiency can be enhanced.
Also, the distance between the work cart and the tailpiece cart can be increased. Then, when the continuous belt conveyor is extended, after the work carriage is brought close to the tailpiece carriage, the tailpiece carriage is moved to the face side, but at this time, the movement amount of the tailpiece carriage can be increased, Work efficiency can be improved.

In the height adjustment mechanism of the continuous belt conveyor described above, it is desirable to provide a rotatable roller on the upper surface of the inclined frame.
By supporting the continuous belt conveyor by the rollers of the tilting frame, the tilting frame can be smoothly moved in the extension direction of the tunnel with respect to the continuous belt conveyor.

  The above-mentioned suspension member is provided with a plurality of linear bodies suspended from the arm, and a support member attached to the lower end of each linear body, and the continuous belt conveyor is mounted on the upper surface of the support member In the case of placement, the lifting member can be easily attached to and detached from the continuous belt conveyor.

  Furthermore, it is desirable to provide a rotatable roller on the upper surface of the support member and to support the continuous belt conveyor by the roller of the support member to make it easier to move the suspension member relative to the continuous belt conveyor.

In the height adjustment mechanism of the continuous belt conveyor of the present invention, the height of the continuous belt conveyor can be adjusted by the tilting frame. And since the inclination frame is supported by the work carriage, the continuous belt conveyor can be stably supported.
Further, according to the present invention, by supporting the inclined frame with the work carriage, it is not necessary to secure the installation space of the inclined frame on the floor surface of the tunnel, and the inclination frame can be miniaturized. Therefore, the installation cost of the height adjustment mechanism can be reduced, and the degree of freedom of the layout of equipment in the tunnel can be increased.
Further, in the present invention, when the continuous belt conveyor is extended, the inclined frame can be moved together with the work carriage, so that the work efficiency can be enhanced.

It is the whole side view showing height adjustment mechanism concerning an embodiment of the present invention. It is a side view showing a tilting frame concerning an embodiment of the present invention. It is the figure which looked at the inclination flame | frame which concerns on embodiment of this invention from the wellhead side. It is a figure showing a suspending member concerning an embodiment of the present invention, and (a) is a side view, and (b) is a figure seen from the pit side. In the height adjustment mechanism which concerns on embodiment of this invention, it is the whole side view which showed the process of extending a continuous belt conveyor.

Embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
The height adjustment mechanism 1 of this embodiment adjusts the height of the continuous belt conveyor 100 installed in the tunnel T as shown in FIG.
In the following description, the height adjustment mechanism 1 will be described in detail after first describing the overall structure of the tunnel T and the continuous belt conveyor 100.

On the floor surface F of the tunnel T, a crusher 2 for crushing earth and sand, a tail piece carriage 3 juxtaposed adjacent to the wellhead side of the crusher 2, and a parallel arrangement spaced apart on the wellhead side of the tailpiece carriage 3 And the ventilation carriage 4 ("working carriage" in the claims) are installed.
The ventilation carriage 4 is a facility for ventilating the inside of the tunnel T, and includes a carriage 4a capable of traveling in the extension direction of the tunnel T, and a ventilation fan 4b installed on the carriage 4a. The dolly 4a travels on a rail R laid on the floor surface F.

The continuous belt conveyor 100 linearly extends from the wellhead side to the face side of the tunnel T.
The continuous belt conveyor 100 includes an endless rubber belt 110 and a plurality of support frames 120 connected in the extension direction of the tunnel T.
Further, as shown in FIG. 4A, on the upper surface of the support frame 120, a plurality of carrier rollers 130 and a plurality of return rollers 140 are provided side by side at intervals in the extension direction of the tunnel T.

The rubber belt 110 is disposed above the support frame 120. As shown in FIG. 1, the face side end of the rubber belt 110 is wound around the tailpiece 3a of the tailpiece carriage 3, and the end of the rubber belt 110 on the wellhead side is a pulley installed at the wellhead of the tunnel T ( (Not shown).
Further, as shown in FIGS. 4A and 4B, the rubber belt 110 is supported by the carrier rollers 130 and the return rollers 140.

  In the continuous belt conveyor 100, as shown in FIG. 1, a horizontal section 101 extending horizontally from the wellhead side to the face side and a downward end from the end of the horizontal section 101 on the face side toward the tailpiece 3a. An inclined inclined section 102 is formed. The face-side end of the horizontal section 101 of the continuous belt conveyor 100 is disposed on the wellhead side of the ventilation carriage 4.

  The horizontal section 101 of the continuous belt conveyor 100 is disposed at a substantially intermediate position in the height direction in the tunnel T. Further, as shown in FIG. 3, the continuous belt conveyor 100 is disposed close to one side surface of the tunnel T.

  The tunnel T of this embodiment is a water tight type, and the floor surface F on the face side at the time of construction is dug deeper than a construction base surface (not shown). In such a construction site, as shown in FIG. 1, the tailpiece 3 a is disposed at a lower position than the horizontal section 101 of the continuous belt conveyor 100.

  Therefore, in the present embodiment, the continuous belt conveyor 100 is continuously connected by forming the inclined section 102 inclined downward toward the tailpiece 3a between the end on the face side of the horizontal section 101 of the continuous belt conveyor 100 and the tailpiece 3a. The height of the belt conveyor 100 is adjusted.

In the continuous belt conveyor 100, the rubber belt 110 is configured to be rotated by a drive device (not shown). The rotational direction of the rubber belt 110 is set such that the upper surface of the rubber belt 110 moves from the face side to the wellhead side.
Then, by supplying excavated soil from the crusher 2 to the upper surface of the end of the rubber belt 110 on the face side, excavated soil can be transported from the face side to the wellhead side.

The height adjustment mechanism 1 includes an inclined frame 10 supported by the ventilation carriage 4 and a suspension member 20 suspended from an arm 3 b of the tailpiece carriage 3.
The inclined frame 10 and the suspension member 20 of the height adjustment mechanism 1 support the inclined section 102 of the continuous belt conveyor 100.

  As shown in FIG. 3, the inclined frame 10 includes four support brackets 11 (see FIG. 2) protruding from the side surface of the ventilation carriage 4, a lower frame 12 installed on the upper surface of each support bracket 11, and a lower frame 12. And an upper frame 13 provided on the upper side of Further, on the upper surface of the inclined frame 10, a plurality of rollers 14 (see FIG. 2) are provided.

The support bracket 11 is a linear member protruding laterally from the side surface of the ventilation carriage 4 on the continuous belt conveyor 100 side.
In the present embodiment, as shown in FIG. 2, four support brackets 11 are juxtaposed at intervals in the extension direction of the tunnel T.

The lower frame 12 is, as shown in FIG. 3, a pair of left and right lower frame members 12a, 12a and a plurality of vertical frame members 12b erected on the upper surfaces of both lower frame members 12a, 12a (see FIG. 2). And have.
The lower frame member 12a is a linear member extending in the extension direction of the tunnel T, as shown in FIG. As shown in FIG. 3, the lower frame members 12 a and 12 a are attached to the upper surface of each support bracket 11 at an interval in the width direction of the tunnel T.

On the upper surface of both lower frame members 12a, as shown in FIG. 2, a plurality of vertical frame members 12b are juxtaposed at intervals in the extension direction of the tunnel T.
The heights of the vertical frame members 12b are set so as to sequentially decrease from the vertical frame member 12b on the wellhead side toward the vertical frame member 12b on the face side.

The upper frame 13 is provided with a pair of left and right upper frame members 13a, 13a as shown in FIG.
The upper frame member 13a is a linear member extending in the extension direction of the tunnel T, as shown in FIG.
The upper frame member 13a is connected to the upper end portion of each vertical frame member 12b of the lower frame 12, and is inclined downward from the wellhead side toward the face side.
Thus, the upper surface of the inclined frame 10 is inclined downward from the wellhead side toward the face side.

As shown in FIG. 3, the roller 14 is supported at its both ends by the upper frame members 13a and 13a, and is rotatable around an axis along the width direction of the tunnel T. As shown in FIG. 2, a plurality of rollers 14 are juxtaposed on the inclined frame 10 at intervals in the extension direction of the tunnel T.
The upper part of the outer peripheral surface of each roller 14 protrudes above the upper surfaces of the upper frame members 13a and 13a (see FIG. 3). As described above, the plurality of rollers 14 are juxtaposed on the upper surface of the inclined frame 10. The continuous belt conveyor 100 is mounted on each roller 14.

As shown in FIG. 2, when the continuous belt conveyor 100 is placed on the upper surface of the inclined frame 10, the continuous belt conveyor 100 is inclined along the upper surface of the upper frame 13. Specifically, a portion of the continuous belt conveyor 100 is inclined downward as it goes from the wellhead side to the face side, and the inclined section 102 is formed in the continuous belt conveyor 100.
Thus, by supporting the continuous belt conveyor 100 by the inclined frame 10, the inclined section 102 is formed in the continuous belt conveyor 100.

As shown in FIG. 4A, the suspension member 20 is suspended at the tip (end on the wellhead side) of the arm 3b of the tailpiece carriage 3.
The suspension member 20, as shown in FIG. 4B, includes a pair of left and right chain blocks 21 and 21 attached to the arm 3b, and a support member 22 connected to hooks 21c and 21c of both chain blocks 21 and 21. And. In addition, three rollers 23 (see FIG. 4A) are provided on the upper surface of the support member 22.

  In the chain block 21, the drive portion 21a is connected to the side surface of the arm 3b, and the hook 21c is provided at the lower end portion of the chain 21b suspended from the drive portion 21a ("linear body" in the claims). .

  The support member 22 includes left and right side frame members 22a and 22a, and four connecting frame members 22b (see FIG. 4A) erected on the upper surfaces of the both side frame members 22a and 22a. . The width of the support member 22 is formed larger than the width of the continuous belt conveyor 100.

  As shown in FIG. 4A, two connecting frame members 22b and 22b are provided upright on the upper surface of one side frame member 22a at an interval in the extension direction of the tunnel T. Similarly, on the upper surface of the other side frame member 22a, two connecting frame members 22b and 22b are provided to be spaced apart from each other in the extension direction of the tunnel T.

The upper end portions of the four connection frame members 22 b are connected to the hooks 21 c of the chain block 21 via the wires 24. That is, as shown in FIG. 4 (b), the support member 22 is suspended from the tip of the arm 3 b via the chain blocks 21 and 21 and the wire 24.
The driving members 21a and 21a of both chain blocks 21 and 21 are driven to raise and lower the hooks 21c and 21c, whereby the support member 22 can be raised and lowered.

Both ends of the roller 23 are axially supported by the left and right side frame members 22 a and 22 a of the support member 22, and are rotatable around an axis along the width direction of the tunnel T. As shown in FIG. 4A, three rollers 23 are juxtaposed on the support member 22 at intervals in the extension direction of the tunnel T.
The upper part of the outer peripheral surface of each roller 23 protrudes above the upper surfaces of the side frame members 22a and 22a (see FIG. 4B). That is, on the upper surface of the support member 22, three rollers 23 are juxtaposed at intervals in the extension direction of the tunnel T.

The continuous belt conveyor 100 is disposed between the left and right connecting frame members 22b and 22b as shown in FIG. 4B, and the continuous belt conveyor 100 is mounted on each roller 23 of the support member 22.
In this way, the suspension member 20 supports the inclined section 102 of the continuous belt conveyor 100 between the inclined frame 10 and the tailpiece carriage 3 as shown in FIG.

  In the present embodiment, as shown in FIG. 1, when transporting excavated soil, the ventilation carriage 4 and the tailpiece carriage 3 are disposed at an interval. At this time, the inclined frame 102 and the hanging member 20 support the inclined section 102 of the continuous belt conveyor 100.

When extending the continuous belt conveyor 100 to the face side as the tunnel T is advanced, first, as shown in FIG. 5, the inclined section 102 (see FIG. 1) of the continuous belt conveyor 100 is raised horizontally.
The inclined section 102 may be raised by lifting the inclined section 102 of the continuous belt conveyor 100 by the support member 22 of the suspension member 20.
Then, the ventilation carriage 4 is moved to the face side, and the distance between the tailpiece carriage 3 and the ventilation carriage 4 is reduced.

Thereafter, while moving the tailpiece carriage 3 to the face side, the tailpiece 3a side of the continuous belt conveyor 100 is added to the tailpiece carriage 3 side to extend the continuous belt conveyor 100 to the face side.
Further, on the wellhead side of the ventilation carriage 4, the horizontal section 101 of the continuous belt conveyor 100 is fixed to the side surface of the tunnel T by an operator on the work carriage (not shown).

Further, as shown in FIG. 1, the continuous belt conveyor 100 is placed on the upper surface of the inclined frame 10 to form the inclined section 102 in the continuous belt conveyor 100.
Furthermore, the continuous belt conveyor 100 between the tilting frame 10 and the tailpiece carriage 3 is supported by the suspension members 20.

  In the height adjustment mechanism 1 as described above, as shown in FIG. 1, the height of the continuous belt conveyor 100 is adjusted by placing the continuous belt conveyor 100 on the upper surface of the inclined frame 10. And since the inclination flame | frame 10 is supported by the ventilation trolley 4, it can support the continuous belt conveyor 100 stably.

Further, as shown in FIG. 3, since the inclined frame 10 is supported by the ventilation carriage 4, there is no need to secure an installation space for the inclined frame 10 on the floor surface F of the tunnel T, and the inclined frame 10 is miniaturized. can do.
Therefore, the installation cost of the height adjustment mechanism 1 can be reduced, and the degree of freedom of the layout of the equipment in the tunnel T can be increased.

When extending the continuous belt conveyor 100, the tilting frame 10 can be moved together with the ventilation carriage 4 as shown in FIG.
Further, by supporting the continuous belt conveyor 100 between the ventilation carriage 4 and the tailpiece carriage 3 by the suspension member 20, the distance between the ventilation carriage 4 and the tailpiece carriage 3 can be increased. When extending the continuous belt conveyor 100, after the ventilation carriage 4 is brought close to the tailpiece carriage 3, the tailpiece carriage 3 is moved to the face side, but at this time, the movement amount of the tailpiece carriage 3 is increased. it can.
Therefore, in the height adjustment mechanism 1, the working efficiency when extending the continuous belt conveyor 100 can be enhanced.

  Further, as shown in FIG. 2, since the continuous belt conveyor 100 is supported by the rollers 14 of the inclined frame 10, the inclined frame 10 can be smoothly moved with respect to the continuous belt conveyor 100.

Further, as shown in FIG. 4B, since the continuous belt conveyor 100 is placed on the upper surface of the support member 22 of the suspension member 20, the suspension member 20 can be easily attached to and detached from the continuous belt conveyor 100. There is.
Further, as shown in FIG. 4A, since the continuous belt conveyor 100 is supported by the rollers 23 of the suspension member 20, the suspension member 20 can be smoothly moved with respect to the continuous belt conveyor 100.

As mentioned above, although embodiment of this invention was described, this invention can be suitably changed in the range which does not deviate from the meaning, without being limited to the said embodiment.
In the present embodiment, as shown in FIG. 1, the upper surface of the inclined frame 10 is inclined such that the face side is disposed lower than the wellhead side, but the inclination direction is not limited.
For example, when the tailpiece 3a of the continuous belt conveyor 100 is disposed at a position higher than the horizontal section 101, the upper surface of the inclined frame 10 is inclined such that the face side is located higher than the wellhead side. As a result, it is possible to form an inclined section which is inclined upward from the horizontal section 101 of the continuous belt conveyor 100 toward the tailpiece 3a.

  In the suspension member 20 of this embodiment, as shown in FIG. 4B, the continuous belt conveyor 100 is placed on the upper surface of the support member 22. However, the hook 21c of the chain block 21 of the suspension member 20 is a continuous belt It may be directly coupled to the support frame 120 of the conveyor 100.

  In the present embodiment, as shown in FIG. 3, the inclined frame 10 is supported by the ventilation carriage 4, but the configuration of the carriage that supports the inclined frame 10 is not limited and is installed in the tunnel T The tilt frame 10 can be supported by various work carts.

  In the present embodiment, as shown in FIG. 2, the continuous belt conveyor 100 is supported by the rollers 14 of the inclined frame 10, but the continuous belt is attached to the upper surface of the inclined frame 10 without providing the rollers 14 on the inclined frame 10. The conveyor 100 may be mounted directly.

  In the present embodiment, as shown in FIG. 4A, the continuous belt conveyor 100 is supported by the rollers 23 of the suspension member 20, but without providing the rollers 23 on the suspension member 20, the upper surface of the support member 22. The continuous belt conveyor 100 may be mounted directly on the

Reference Signs List 1 height adjustment mechanism 2 crusher 3 tail piece cart 3a tailpiece 3b arm 4 ventilation cart 4b ventilation fan 10 tilt frame 11 support bracket 12 lower frame 12a lower frame member 12b vertical frame member 13 upper frame 13a upper frame member 14 roller 20 Hanging member 21 chain block 21a driving unit 21c hook 22 supporting member 22a side frame member 22b connecting frame member 23 roller 24 wire 100 continuous belt conveyor 101 horizontal section 102 inclined section 110 rubber belt 120 support frame 130 carrier roller 140 return roller F floor surface R rail T tunnel

Claims (4)

A height adjustment mechanism of a continuous belt conveyor installed in a tunnel,
An inclined frame supported by a work carriage installed in the tunnel ;
A tailpiece carriage installed on the face side, and a hanging member suspended from an arm of the tailpiece carriage ;
The upper surface of the inclined frame is inclined such that the face side is located lower or upper than the wellhead side,
The continuous belt conveyor is mounted on the upper surface of the inclined frame ,
The height adjustment mechanism of a continuous belt conveyor, wherein the suspension member supports the continuous belt conveyor between the tilting frame and the tailpiece carriage .   The height adjustment mechanism for a continuous belt conveyor according to claim 1, wherein a rotatable roller is provided on the upper surface of the inclined frame. The hanging member is
A plurality of linear bodies suspended from the arm;
A support member attached to the lower end of each of the linear bodies;
The height adjustment mechanism of the continuous belt conveyor according to claim 1 or 2 , wherein the continuous belt conveyor is mounted on the upper surface of the support member. The height adjustment mechanism of a continuous belt conveyor according to claim 3 , wherein a rotatable roller is provided on the upper surface of the support member.

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