JP2589294Y2 - Shear unloading device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for carrying out a whirl in the excavation of a tunnel.

[0002]

2. Description of the Related Art Conventionally, a belt conveyor has been used to carry out whirls accompanying the excavation of a tunnel.

In the above-mentioned belt conveyor system, a fixed length belt conveyor is added in series, and a tail pulley of a downstream belt conveyor is overlapped with a head pulley of an upstream belt conveyor.

[0004]

According to the above-mentioned belt conveyor system, the opposing ends (tail side and head side) of the belt conveyor are overlapped and added to each other, so that each belt conveyor has an operating drive unit. (Modal and transmission means).

[0005] There is also a problem that it takes time and effort to carry in a heavier replenishing belt conveyor.

[0006] Therefore, an object of the present invention is to provide a device for carrying out a slip in which the shear is carried out by one belt conveyor.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is to provide an excavator for a tunnel and a rear side of the excavator, which are added in series in accordance with the excavation movement of the excavator. A conveyer frame, a bogie provided with wheels mounted on rails provided on both sides of an upper surface of the conveyer frame, a connecting member connecting the bogie and the excavator, and a tail pulley provided on the bogie. And an endless belt extending between the rearmost conveyor frame and a head pulley provided behind the belt, and the belt provided on the return side of the belt so as to feed out the belt following the movement of the bogie. And a supply belt conveyor provided to supply shear from the excavator to the carrier side of the belt. Is obtained by employing the unloading device shear comprising a roller attached to said conveyor frame so as to support the carrier side and the return side without the belt.

In addition, an excavator for a tunnel, a conveyor frame which can be added in series with the excavator behind the excavator in accordance with the excavation movement of the excavator, and are provided on the entire length of both sides of the upper surface of the conveyor frame. A moving belt conveyor connected to the excavator, and an upstream belt conveyor provided to the excavator to convey the shear from the excavator on the tail of the moving belt conveyor, while the wheels are provided so that the wheels can run on the rails. A truck on which wheels ride on rails of the conveyor frame, a stopping device provided to stop the movement of the truck, a tail pulley provided on the truck, and a stationary head pulley provided on the rearmost conveyor frame or the rear thereof. And between the stationary head pulley and the tail pulley, and the moving belt conveyor. Ri and consists of a endless belt which is provided so as to load-receiving, by replenishing the belt the belt is obtained by employing the unloading device shear comprising so as to extend the total length of the belt.

[0009]

The shear discharged from the excavator is carried out from the supply belt conveyor to the belt.

Further, since the bogie is towed through the connecting member in accordance with the excavating movement of the excavator, the belt of the shrinking stock device is pulled out following the moving amount of the bogie, and the carrier side of the belt is extended.

Further, the conveyor frame is added to the conveyor frame as the carriage moves, and the extension carrier side and the return side of the belt are supported by rollers fixed to the conveyor frame as the belt is extended.

[0012] The shear discharged from the excavator is transferred from the upstream belt conveyor to the moving belt conveyor, and is discharged from the moving belt conveyor through the belt.

Further, since the moving belt conveyor is moved in the same direction with the excavating movement of the excavator, the receiving point on the belt from the moving belt conveyor shifts in the direction of the bogie, and when the receiving point reaches the bogie, the excavation is performed. Machine, upstream conveyor, moving conveyor, belt operation.

Next, the carrier side of the belt is cut in the width direction, and the end of the replenishing belt wound around the drum is connected to the cut end opposite to the running direction. At this time, the other cut end of the belt is clamped at that position.

Thus, while pulling the bogie in the direction of the excavator by a winch or the like and pulling out the drum belt, the amount of overlap of the moving belt conveyor with respect to the belt is increased, and then the drum belt is cut. Then, connect the cut end to the cut end of the unclamped belt and start operation.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below with reference to the accompanying drawings.

(First Embodiment) As shown in FIGS. 1 and 2, on the rear side of the excavator 1 of the shield method, the conveyor frames 2 are sequentially arranged in series with the excavation movement (progress) of the excavator 1. It is designed to be added.

The extension of the conveyor frame 2 is laid on a gantry 4 projecting from the assembled segment 3, and the conveyor frame 2 is fixed to the gantry 4 via a fastener (comprising a bolt and a nut).

At this time, the conveyer frame 2 may be connected to a joint plate of a track via a fastener, for example, so that a step does not occur at the opposite end of the conveyor frame 2.

Also, rails 5 are provided on the entire length of both sides of the upper surface of each conveyor frame 2, and wheels 7 of a bogie 6 ride on the rails 5.

In the case shown, the upper flange of the channel used as the conveyor frame 2 is a rail.

Further, the bogie 6 is connected to the excavator 1 by a connecting member 8.
Are connected via.

In the case shown, a rod is used as the connecting member 8, and the end of the rod is mounted on the excavator 1 and the bogie 6 via a pin on a mounting bracket.

Reference numeral 9 denotes a tail pulley supported on the carriage 6.

Reference numeral 10 denotes a head pulley installed behind the rearmost conveyor frame 2.

Reference numeral 11 denotes a tail pulley 9 and a head pulley 10
An endless belt stretched between the belts.

On the return side of the belt 11, there is provided a belt contraction stock device 12 for feeding out the belt 11 following the movement of the carriage 6.

In the case of the drawing, the above-described shrinking stock device 12 comprises a movable seat 14 on which the wheels 13 ride on the rail 5 and a conveyor frame 4 on the movable seat 14 and in front of the truck 6.
The bearings have a predetermined distance in front of and behind each other, and the diameter increases sequentially from the inner side to the outer side.
A pulley 15 that winds the return side of 1 from a large diameter side to a small diameter side and a wire 16 connected to a movable seat 14 are pulled in the direction of the head pulley 10, and the truck follows the movement of the truck 6. And a winch 17 provided to allow movement of the movable seat 14 in the direction 6.

Reference numeral 18 denotes a supply belt conveyor for supplying the shear discharged from the excavator 1 to the carrier-side belt 11 of the bogie 6.

With the above construction, the shears A discharged from the excavator 1 are carried out of the tunnel B via the belt 11 from the supply belt conveyor 18.

As the bogie 6 is pulled through the connecting member 8 as the excavator 1 excavates, the belt 11 of the shrinking stock device 12 is extended as the bogie 6 moves, and the discharge of shear by continuous operation is continued. You.

At this time, the movable seat 14 moves in the direction of the carriage 6 while pulling out the wire 16.

Further, the conveyor frame 2 is added to the conveyor frame 2 as the carriage 6 moves.

Further, the belt 1 is moved with the movement of the carriage 6.
6 and 7, the bearing bed 22 of the roller 21 is inserted from one side of the belt 11 so as to cross the belt 11, and
2 and the through hole 24 of the conveyor frame 2 is engaged with the projecting shaft 23 at the end in the insertion direction, and the through hole 25 at the other end of the bed 22 and the through hole 25 of the conveyor frame 2 are aligned. A fastener 26 comprising a bolt and a nut is inserted into the through hole 25 and fixed.

When the movement of the movable seat 14 becomes an allowable limit, the belt 11 is cut to clamp one of the cut ends, and the other end of the drum is connected to the end of the replenishing belt of the drum. The bogie 6 is moved by the action of the winch 17 in the direction opposite to the direction 1, and with the movement, the replenishing belt of the drum is pulled out, then the replenishing belt is cut, and the cut end of the belt 11 on the clamp side is connected to the cut end. I do.

(Second Embodiment) As shown in FIG. 8, a conveyor frame 2 having a rail 5 is successively added to the rear side of the excavator 1 of the shield method as the excavator 1 moves. ing.

The addition of the conveyor frame 2 is the same as in the first embodiment, and a description thereof will be omitted.

As shown in FIGS. 11, 14 and 15, before and after the conveyor frame 2, wheels 4 are attached to rails 5.
1 is provided with a front bogie 42 and a rear bogie 43 engaged with each other.

The front bogie 42 is connected to the excavator 1 via a connecting member 8 as in the first embodiment.

Further, as shown in FIG.
The tail side and the head side of the upstream belt conveyor 44 are supported by the rear carriage 2 and the rear carriage 43.

The shear A discharged from the excavator 1 is supplied to the tail portion on the carrier side of the upstream belt conveyor 44 via the supply belt conveyor 18 as in the first embodiment.

A carriage 46 having wheels 45 engaged with the rails 5 is provided below the upstream belt conveyor 44.

The truck 46 is stopped at the tail side of the upstream conveyor 44, and is moored by locking the wire 47 to the segment 3 and the truck 46.

Reference numeral 48 denotes a tail pulley that is supported on the carriage 46.

Reference numeral 49 denotes a stationary head pulley installed outside the tunnel B.

50 is a tail pulley 48 and a head pulley 4
9 is an endless belt stretched over the belt.

With the above construction, the shears A discharged from the excavator 1 through the supply belt conveyor 18 are carried out of the tunnel B through the upstream belt conveyor 44 and the belt 50.

Since the upstream belt conveyor 44 is moved together with the excavator 1 via the connecting member 8 as the excavation progresses, the load receiving point on the belt 50 shifts from the carrier-side head portion of the belt 50 to the tail portion, and the belt 50 moves. When the receiving point reaches the tail of the vehicle, all operations are stopped first.

Next, the carrier side of the belt 50 is cut in the width direction, and a replenishing belt 5 wound around a drum 51 as shown in FIGS.
Connect the two ends. At this time, the other cut end of the belt 50 is fixed to the belt 50 via a clamp 53 as shown in FIG.

When the bogie 46 is connected to the wire of the winch, the mooring of the wire 47 is released, and the wire is wound by driving the winch, the bogie 46 is forcibly moved in the direction of the front bogie 42. Belt 5 of drum 51
2 is pulled out.

When the trolley 46 arrives near the front trolley 42, the trolley 46 is moored to the segment 3 via the wire 47, and then the belt 52 of the drum 51 is cut, and the cut end of the unclamped belt is cut. And start operation.

The carrier 22 and the return side of the extension of the belt 50 are supported by mounting the bed 22 in the same manner as in the first embodiment.

[0053]

[Effect] As described above, according to the device for unloading waste according to the present invention, it is possible to unload the waste very efficiently, and it is necessary to stop the operation of the fixed-length belt conveyor one by one and to add the work. It becomes unnecessary.

[Brief description of the drawings]

FIG. 1 is a side view of a first embodiment according to the present invention.

FIG. 2 is an enlarged side view of the above.

FIG. 3 is an enlarged side view of the shrinking stock device.

FIG. 4 is a sectional view taken along the line XX of FIG. 3;

FIG. 5 is a sectional view taken along the line YY of FIG. 3;

FIG. 6 is a longitudinal sectional front view showing mounting of a roller bearing bed;

FIG. 7 is a plan view of the above.

FIG. 8 is a side view of the second embodiment.

FIG. 9 is a side view of adding a belt.

FIG. 10 is a side view of the extended belt pulled out.

FIG. 11 is an enlarged side view of the above.

FIG. 12 is an enlarged side view of a belt pull-out portion.

FIG. 13 is an enlarged side view showing a belt clamp.

FIG. 14 is a longitudinally enlarged front view.

FIG. 15 is an enlarged vertical sectional front view of a part of a bogie.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Excavator 2 Conveyor frame 3 Segment 4 Mount 5 Rail 6 Dolly 7 Wheel 8 Connecting member 9 Tail pulley 10 Head pulley 11 Belt 12 Shrink stock device 13 Wheel 14 Moving seat 15 Pulley 16 Wire 17 Winch 18 Supply belt conveyor 41 Wheel 42 Front side Dolly 43 Rear dolly 44 Upstream belt conveyor 45 Wheel 46 Dolly 47 Wire 48 Tail pulley 49 Head pulley 50 Belt

Claims (2)

(57) [Scope of request for utility model registration] 1. An excavator for a tunnel, a conveyor frame which can be added in series to the rear side of the excavator in accordance with the excavation movement of the excavator, and provided on the entire length of both sides of the upper surface of the conveyor frame. A truck provided so that wheels can ride on the rails, a connecting member for connecting the truck and the excavator, a tail pulley provided on the truck, and a head pulley provided on the rearmost conveyor frame or the rear thereof. An endless belt extending between the belt, a retracting stock device for the belt provided on the return side of the belt so as to follow the movement of the bogie, and a shift from the excavator to a carrier side of the belt. And a carrier belt and a return side of the belt as the belt is fed out. And a roller mounted on the conveyor frame. 2. An excavator for a tunnel, a conveyor frame which can be added in series to the rear side of the excavator in accordance with the excavation movement of the excavator, and provided on the entire length of both sides of the upper surface of the conveyor frame. A moving belt conveyor connected to the excavator, and an upstream belt conveyor provided to the excavator to convey the shear from the excavator on the tail of the moving belt conveyor, while the wheels are provided so that the wheels can run on the rails. A truck on which wheels ride on rails of the conveyor frame, a stopping device provided to stop the movement of the truck, a tail pulley provided on the truck, and a stationary head pulley provided on the rearmost conveyor frame or the rear thereof. And between the fixed head pulley and the tail pulley, and the displacement of the moving belt conveyor. It consists of a endless belt which is provided so as to receive, out device of shear comprising so as to extend the total length of the belt topped belt to the belt.