JP2503324B2 - Drilling chip discharge 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 discharging excavation scraps which can efficiently convey excavated scraps to a hopper on the ground surface in a shield construction or the like.

[0002]

2. Description of the Related Art Generally, excavation scraps generated by shield work at a large depth have been discharged from the horizontal shaft 1 through the vertical shaft 2 to the surface of the ground by using the equipment shown in FIGS. 3 and 4.

First, the discharge equipment shown in FIG. 3 is carried to a vertical shaft 2 through a so-called slot steel wheel 4 which runs on a rail 3 laid in a horizontal shaft 1, and slides into a vertical slide hole 5 at the bottom of the vertical shaft 2. After that, the crane bucket 6 lifts the scrap on the surface of the ground and transfers it to the scrap collecting hopper 7 provided on the surface of the ground. The means for discharging the scrap from the scrap steel wheel 4 to the slip collecting hole 5 is such that the rail 3 is pulled in advance to the side of the stacking hole 5 and the slip steel wheel 4 is laid sideways at that position to collect the scrap. Is dropped inside.

Further, in the discharge equipment shown in FIG. 4, the rail 3 is pulled up to just below the vertical shaft 2, and the scrap steel wheel 4 reaching this position is lifted by a wire 8 and transferred to a scrap collecting hopper 7 provided on the surface of the ground. It is the composition to change. As a means for transferring the slip to the hopper 7, the slip steel wheel 4 is turned over at the upper part of the hopper 7 or is opened to the bottom and transferred to the hopper 7.

[0005]

However, in any of the discharge facilities, the heavy machinery such as a crane must be used to reciprocate through the vertical shaft to pull up the slide or the slide steel car itself, which is troublesome. There was danger.

[0006] Further, since the discharging work is discontinuous such as performing the discharging work by reciprocating in the vertical shaft, the efficiency is low, and when the drilling scrap is clay-like, the scrap drilling is performed while being fixed to the inner surface or bottom plate of the scrap steel car. Since it is sent back to the site, the discharge efficiency per unit gradually decreases, and in order to improve the discharge efficiency of the scratches, the stuck scratches must be scraped off one by one, which is a very time-consuming task.

The present invention has been made to solve the above-mentioned drawbacks. It is possible to continuously convey vertical shavings in a vertical shaft without removing the bogie from the rail, and even if the slag is clay-like, the slipping is possible. It is an object of the present invention to provide an excavation scrap discharge device capable of efficiently discharging without adhering to the inside of a container part for transportation or the surface of a conveyor.

[0008]

In order to achieve the above object, the present invention relates to a trolley which runs on a rail laid in a horizontal shaft, and a bottomless container portion movably installed on the trolley. And, in the communication part between the horizontal shaft and the vertical shaft,
A screw conveyor for slip transport with an opening of a hopper portion on a side portion of the rail, a pair of guide rails fixedly arranged on the upper portion of the hopper portion, and for laterally guiding the container portion, and the hopper as well. Is disposed in the upper part of the section, clamps and unclamps the container section, and a drive mechanism that moves the container section along the guide rail, and is arranged in the vertical shaft, and the lower end is the discharge end of the screw conveyor. It is provided with a vertical belt conveyor for continuous transfer, which is opposed to and has its upper end opposed to the upper part of the hopper for slip collection arranged on the ground surface side.

[0009]

The bottomless container portion accommodates the slip inside by using the upper surface of the trolley as a bottom plate. Just above the hopper portion of the screw conveyor, which is the slip discharge position, only the container portion laterally moves and the slip is sequentially discharged from the bottom portion toward the hopper portion. At this time, even if the misalignment is clay, the misalignment adhering to the surface of the carriage is scraped off by the lateral movement, the bottom is removed in this state, and the misalignment is discharged in a vertically falling state toward the discharge position. After the discharge, the container part is returned to the trolley again, and the rail can be run again.

The scraps transferred to the hopper move inside the screw conveyor, and are sequentially transferred to the horizontal part on the lower side of the vertical belt conveyor and transferred there. The belt conveyor that received the slip moves to the upper part while holding the slip inside the shaft due to its endless rotation.
From the horizontal part on the ground surface side, the slip is discharged toward the collecting hopper.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows the entire structure of a continuous scrap discharge device according to the present invention. Horizontal pit 10 in the figure
A rail 12 is laid on the rail, and a carriage 14 for slid transfer is provided here.
Are arranged so that they can be moved back and forth. Horizontal pit 10 and vertical pit 1
In the communication part of 6, the side part of the rail 12 is formed one step lower, the screw conveyor 18 is arranged at this position, and the hopper part 18a is opened on the side part of the rail 12.

Further, a vertical belt conveyor 20 is vertically arranged in the vertical shaft 16 along the vertical direction, the lower end of which is opposed to the slip discharge end of the screw conveyor 18, and the upper part thereof is on the ground surface. It is opposed to the upper part of the fixed stacking hopper 22 for stacking.

A box-shaped container portion 2 having no bottom is provided on an upper portion of the carriage 14.
4 is provided so as to be movable in the lateral direction. This container part 2
Reference numeral 4 is an elongated shape corresponding to the opening shape of the hopper portion 18a, and as shown in FIG.

A pair of guide rails 26 are provided on both sides of the upper portion of the hopper portion 18a so as to be orthogonal to the rails 12 and to carry the carriage 14.
It is extended to a position avoiding interference with and is fixedly arranged so as to face the top surface of the carriage 14 on the same horizontal plane. Further, a driving hydraulic jack 28 for horizontally moving the container portion 24 is arranged above each guide rail 26, and a pin 24a on the container portion 24 side is provided at the tip of the plunger 28a.
A clamp jaw 28b that is detachably connected to the clamp jaw 28b is provided.

The guide rail 26 and the hydraulic jack 2
8 can be fixed to a place that does not affect the work space, for example, a lower wall surface of the lower part of the vertical shaft 16.

The vertical belt conveyor 20 is opposed to the flat belt conveyor 30 in parallel with and in contact with the surface of the flat belt conveyor 30 and holds the gap in cooperation with the flat belt conveyor 30.
And a drive motor 34 on the ground surface side for synchronously moving the belt conveyors 30, 32 in the same direction in an endless manner.
Equipped with 36.

The lower horizontal portion 30 of the flat belt conveyor 30
“A” faces the lower portion of the screw discharge position of the screw conveyor 18. The horizontal portion 30b on the upper side of the flat belt conveyor 30 is extended to the center position of the upper portion of the hopper 22 for stacking, and its rotary end is connected to the hopper 2 for stacking.
Opposite the upper opening, which is the intake of 2.

On the other hand, the upper and lower horizontal ends of the pressing belt conveyer 32 are formed shorter than the flat belt conveyer 30, and the upper and lower horizontal portions 30a and 30b of the flat belt conveyer 30 are formed.
It enables the supply and discharge of waste in China. Further, as shown in a partially enlarged view of FIG. 1, bellows 32a are formed on both sides of the pressing belt conveyor 32, and
A plurality of partition plates 32b are arranged at regular intervals inside the bellows 32a, and the bellows 32a and the partition plate 32b are
Vertical transfer is performed by sandwiching the gap in the space surrounded by the contact surface with the flat belt conveyor 30.

In the above construction, the slip A is placed in the container portion 24.
When the trolley 14 full of the inside of the vehicle reaches the upper part of the hopper 18a at the discharge position, the trolley 14 stops, and in this state, the plunger 28a of the hydraulic jack 28 is projected from the standby position, and the clamp jaw 28b at its tip is pulled out. Pin 24a
The container part 24 is clamped by engaging with. After that, by retracting the plunger 28a, the container portion 24 slides on the surface of the carriage 6 and scrapes off the debris adhering to this surface, and the hopper portion 18 is sequentially moved along the guide rail 26.
Move to the upper side of a. When the bottom opening of the container portion 24 is completely separated from the surface of the truck 14, the scraps A loaded inside the container portion 24 are spilled and entirely fall into the hopper 18a. At this time, since the inner surface of the container portion 24 is kept vertical, the shavings attached to this inner surface are also peeled off by one kind of avalanche phenomenon along with other falling slivers A, and are completely fed to the hopper portion 18a side. Will be done.

Then, the plunger 28a is projected again,
After returning the container part 24 onto the trolley 14, the clamp jaw 2
8c is unclamped and the plunger 28a is retracted, the work stand-by state for the carriage 6 is entered.

The slip A supplied into the hopper section 18a is sequentially conveyed to the vertical conveyor 20 side through the screw conveyor 18, and is sequentially installed on the lower horizontal section 30a of the flat belt 30, and then the pressing belt conveyor 3
It is continuously conveyed vertically while being held between the two.

On the ground surface side, the pressing belt conveyor 3
When 2 is separated from the horizontal portion 30b on the upper side of the flat belt conveyor 30, the gap A is placed on the horizontal portion 30b, and in this state, it is dropped and thrown into the hopper 20 in sequence. When the pressing belt conveyor 32 is separated from the horizontal portion 30b, the bellows 32a expands and contracts, and the expanding and contracting operation also forcibly removes the crease A attached to the inner surfaces of the bellows 32a and each partition plate 32b and places it on the horizontal portion 30b. Will be punished.

In the figure, the clamp jaw 28b
The relationship between the container 24 and the pin 24a on the container portion 24 side is illustrated in a simplified manner, but it goes without saying that it is possible to freely clamp and unclamp by using an appropriate attachment / detachment mechanism. Also,
The stop position of the carriage 14 can be detected by an appropriate sensor,
Based on this, automatic stop control and operation control of the hydraulic jack 28 are possible. Further, the locking of the container portion 24 with respect to the trolley 14 at the time of moving or at the time of receiving a slip at the excavation site can be achieved by an appropriate mechanism, and therefore the description thereof is omitted.

[0024]

As described above in detail with reference to the embodiments, in the device for discharging excavation scraps according to the present invention, only the container part is laterally above the trolley just above the hopper part of the screw conveyor at the slip discharge position. It moves and discharges the scrap from the bottom toward the hopper part. At this time, even if the misalignment is clay, the misalignment adhered to the surface of the carriage 1 is scraped off by the lateral movement, the bottom is removed in this state, and the misalignment is vertically dropped toward the discharging position. . In addition, after discharging, the container part is returned to the trolley again and can run on the rail again. Therefore, compared to the conventional structure that discharges slips by overturning, tipping, or bottom opening, it prevents the adhesion of slips and discharges efficiently. it can. Further, since the slip can be discharged only by moving the container portion in the lateral direction, the work efficiency at the time of discharging the slip from the carriage is greatly improved and the safety is improved as compared with the conventional case.

Further, the slip transferred to the hopper moves inside the screw conveyor and is sequentially discharged and transferred to the lower horizontal part of the vertical belt conveyor, where it is held by the endless rotation. While moving vertically to the upper part and discharging the slip from the horizontal part on the surface side toward the collecting hopper, lifting work with the conventional crane bucket and lifting the scrap steel car directly to the surface part are discharged. Since it is a continuous discharge work compared to the case, both transport efficiency and safety are improved.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an entire excavation scrap discharge device according to the present invention.

FIG. 2 is a perspective view showing a relationship between the cart, a container portion and a hopper portion.

FIG. 3 is an explanatory diagram showing an example of a conventional scrap discharge facility.

FIG. 4 is an explanatory diagram showing another example of the conventional scrap discharge facility.

[Explanation of symbols]

 10 horizontal shaft 12 rail 14 truck 16 vertical shaft 18 screw conveyor 18a hopper 20 vertical belt conveyor 22 scraper accumulating hopper 24 container 24a clamp pin 26 guide rail 28 hydraulic jack (drive mechanism) 28a plunger 28b clamp jaw 30 flat belt conveyor 30a , 30b Horizontal part 32 Holding belt conveyor A Sliding

Claims (1)

(57) [Claims] 1. A trolley that runs on a rail laid inside a horizontal shaft, a bottomless container portion movably installed on the trolley in a lateral direction, and a rail at a communication part between the horizontal shaft and the vertical shaft. Of the screw conveyor for opening the hopper portion on the side of, and a pair of guide rails fixedly arranged at the upper portion of the hopper portion and for laterally moving and guiding the container portion, and also of the hopper portion. A drive mechanism that is disposed on the upper portion, clamps and unclamps the container portion, moves the container portion along the guide rail, and is disposed inside the vertical shaft, and the lower end faces the discharge end of the screw conveyor. Along with the above, the excavated soil is provided with a vertical belt conveyor for continuous transfer, the upper end of which is opposed to the upper part of the hopper for scraping collection arranged on the ground surface side. Sand slipping device.