JPH0925009A - Chain bucket reclaimer - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a reclaimer that can be used for semi-underground piles and that can be easily discharged in a fixed amount, and that can also be discharged from any pile of dissimilar bulk materials arranged in series in the longitudinal direction. . [Structure] The chain bucket type reclaimer of the present invention is
Along the pile of bulk objects, a gate-shaped frame that runs across the pile, a traverse frame that traverses the gate-shaped frame, and a tilting frame whose upper end is pivotally supported by the traverse frame,
A tilting means for tilting the tilting frame in the up-down direction, and an endless chain bucket that is hung along the tilting frame and rises from near the upper end of the tilting frame and scrapes and conveys loose pieces from the pile. And an on-machine conveyor that is provided along the digits of the gate-shaped frame and that conveys loose material discharged from the chain bucket to the end of the gate-shaped frame.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reclaimer for continuously discharging piled piles of coal and other loose pieces, and is particularly effective for discharging semi-underground piles of loose pieces. Regarding reclaimer.

[0002]

2. Description of the Related Art A reclaimer is used as a device for continuously discharging loose materials such as lime and iron ore piled up in a yard as piles. There are various types of such reclaimers, for example, the new edition Mechanical Engineering Handbook C-3 transport machine edited by the Japan Society of Mechanical Engineers (June 1, 1991, first edition 2
Various reclaimers are introduced on pages 43-45 of the Printing). FIG. 5 shows a boom reclaimer introduced in the above publication, which is generally widely used. In the figure, a is a boom, b is a traveling carriage, c is a ground conveyor, d is a pile of bulk items, e is a bucket wheel, and f is an on-board conveyor. The traveling carriage b travels on rails provided along the pile d. The boom a is provided on the traveling carriage b so that it can be raised and lowered and turned. The loose object is scraped off by the rotation of the bucket wheel e provided at the tip of the boom a, and is sent to the ground conveyor c through the on-machine conveyor f provided along the boom a to dispense the loose item. The payout is performed while turning the boom a.

FIG. 6 is another example shown in the above publication, which is a bridge reclaimer. In the figure, g is a bridge-shaped running frame that runs on rails provided along both sides of the pile d and has a beam h. i traverses over h in the traverse frame. In the figure, two transverse frames i are connected to each other, but there may be one. Scraps are scraped off by rotating a bucket wheel e provided on the traverse frame i,
It passes through the bucket wheel and is delivered to the above-ground conveyor c via an on-machine conveyor k provided along the beam h.

It should be noted that a comb-shaped member j (comb blade not shown) is provided on the traverse frame i so as to be capable of undulating, and it is pierced on the slope of the pile to be traversed together with the traverse frame i, so that loose pieces are piled. The bucket wheel e is used to scrape loose pieces that have collapsed by promoting the collapse along the slope. The payout is performed by rotating and traversing the bucket wheel e.

[0005]

The boom type reclaimer shown in FIG. 5 has the following problems. That is, the payout is performed by rotating the bucket wheel e and turning the boom a as described above. When the payout for one turning path is completed, the traveling carriage b travels one pitch and pays out for the next one turning path. At this time, the shaded portion in FIG. 7 is the scraping portion, but as shown in the figure, the scraping amount differs depending on the angle θ of the boom a, so it is difficult to dispense a fixed amount. The arrow in the figure indicates the traveling direction of the traveling carriage b.

Further, when the pile d is a semi-underground type as shown in FIG. 6, the boom a is provided on the side wall of the storage tank on the side of the traveling carriage b.
Since it hits, the part near the side wall cannot be scraped off. In order to completely scrape off this portion, the diameter of the bucket wheel must be extremely increased.

On the other hand, the bridge reclaimer shown in FIG. 6 has the following problems. That is, the pile is formed, for example, with a width of 50 m and a length of 500 m.
There are cases where different coal types of 0 m each are loaded, and the piles must be paid out freely from any of the piles. However, in this type of reclaimer, since the height of the bucket wheel e is fixed, it is impossible to get over the pile, and a plurality of reclaimers are required when there is the above demand. Further, as described above, the scraping is performed depending on the collapse of the bulk material, so that the quantitative scraping cannot be performed when the collapse is not performed uniformly.

The present invention has been devised in view of the above-mentioned problems of the prior art, and it is possible to easily carry out a fixed amount payout, and also to pay out from any piles of dissimilar bulk materials arranged in series in the longitudinal direction. The object is to provide a chain bucket type reclaimer that can be used.

[0009]

In order to achieve the above object, a chain bucket type reclaimer of the present invention traverses over a gate-shaped frame that runs along the pile of bulk material and across the pile. A traverse frame, a tilting frame whose upper end is pivotally supported by the traverse frame, tilting means for tilting the tilting frame in the up-down direction, and a crossing along the tilting frame and rising from the vicinity of the upper end of the tilting frame. An endless chain bucket that scrapes and conveys loose items from the pile, and an on-machine conveyor that is provided along the digits of the portal frame and conveys loose items discharged from the chain bucket to the end of the portal frame. Be equipped with.

With the lower end of the tilting frame lowered to near the bottom of the pile, the tilting angle of the tilting frame is fixed, and while moving the chain bucket to scrape the loose pieces from the pile, the traverse frame is traversed to move the loose pieces. Make a payment. When the traverse of the traverse frame for one pass is completed, the gate-shaped frame is traveled for one pitch and the traverse for the next one pass is performed. When it is desired to run the reclaimer over the pile without scraping, the transverse frame is brought close to the end of the portal frame and the tilting frame is raised.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. 1 is a front view of a chain bucket reclaimer of the present invention, FIG. 2 is a view taken along the line AA of FIG. 1, FIG. 3 is a view taken along the line BB of FIG. 1, and FIG. 4 is a side view of the chain bucket. . In FIGS. 1 to 4, reference numeral 1 denotes a gate-shaped frame, which includes a rigid leg 1a, a rocking leg 1c, and 1b connecting them.

Under each leg, there are traveling wheels 1d and a traveling drive device 1e. Reference numeral 2 denotes a traverse frame, which has wheels 2a and traverses on the beam 1b of the gate-shaped frame 1 by a drive device (not shown). A tilting frame 3 is pivotally supported on the transverse frame 2 at an upper end 3a. 12
Is a hydraulic cylinder in which the base end of the cylinder 12a is pivotally supported by the transverse frame 2 and the tip of the piston rod 12b is connected to the diagonal member 3a of the tilting frame 3, and the tilting frame is vertically tilted by expansion and contraction. It is a tilting means.

Reference numeral 4 is a chain bucket, and bucket 4
The a is connected and supported by the endless chain 4b. The chain bucket 4 is the upper end 3a of the tilting frame 3,
The chain sprockets 4e and 4g provided at the lower end 3b and the chain sprocket 4f provided above the middle portion of the tilting frame 3 are hung along the tilting frame 3 and provided above the chain sprocket 4e at the upper end 3a of the tilting frame 3. 2 chain sprockets 4
The tilting frame 3 is erected from around the upper end 3a of the tilting frame 3 by c and 4d. A chain bucket drive device 4h is connected to the chain sprocket 4c.
The extension of the chain 4b is taken up by the chain sprocket 4g at the lower end.

Reference numeral 5 is an on-machine conveyor, which uses a belt conveyor. The onboard conveyor 5 is provided on the girder 1b of the gate type frame 1, scraped off by the chain bucket 4, and when the bucket 4a passes through the chain sprocket 4c and is inverted, the loose material discharged from the bucket 4a is onboard. It is conveyed to the end portion (left end in FIG. 1) of the receiving gate type frame via the conveyor chute 11.

Reference numeral 6 denotes a chute provided along the rigid legs 1a of the gate-shaped frame 1 for dropping loose objects conveyed by the on-board conveyor 5 through the inside. Reference numeral 7 denotes a ground conveyor, which conveys the loose material discharged from the ground conveyor chute 6. Reference numeral 8 is a pile, which is formed by bulk piled up items in a storage tank 9 that is semi-underground. The storage tank 9 has a pool shape having a side wall 9a. Rails 10 are provided along the pile 8 on both sides thereof. The above-ground conveyor 7 is also provided along the pile 8.

Next, the operation of the present embodiment will be described.
Bulk items are paid out as follows. The tilt angle α of the tilting frame 3 is fixed with the lower end 3b of the tilting frame 3 lowered to near the bottom of the pile. Chain bucket 4
Is moved to scrape loose pieces from the pile 8, and the traverse frame 2 is traversed. Since the bucket 4a is reversed when passing through the uppermost chain sprocket 4c of the chain bucket 4, the loose material in the bucket 4a is thrown into the on-machine conveyor chute 11 and provided below the on-machine conveyor chute 11. It falls on the on-machine conveyor 5. The bulk material is conveyed to the rigid leg 1a side by the onboard conveyor 5, passes through the ground conveyor chute 6 provided along the rigid leg 1a, falls on the ground conveyor 7, and is carried out to the outside by the ground conveyor 7. .

When the fixed amount payout is performed, the traverse speed of the traverse frame 2 is fast and varied on the slopes 8a on both sides of the pile 8, and the traverse speed is set to a slow constant speed on the flat portion 8b at the center of the pile 8.

When it is desired to run the portal frame 1 over the pile without scraping, the transverse frame 2 is brought close to the end of the portal frame 1 and the tilting frame 3 is shown by a chain double-dashed line in FIG. The gate-shaped frame 1 is run in the raised state as indicated by.

The present invention is not limited to the embodiments described above. For example, although the tilting means for tilting the tilting frame 3 is described as a hydraulic cylinder, it may be performed by a combination of a wire and a winch. Although the on-machine conveyor 5 is described as a belt conveyor, it may be a chain conveyor. As described above, the embodiment can be variously modified within the scope of the claims.

[0020]

As described above, in the chain bucket type reclaimer of the present invention, the traverse frame and the tilting frame are attached to the gate type frame which runs across the pile, and the chain bucket is hung along the tilting frame and scratched by the chain bucket. Since the taken loose material is conveyed to the above-ground conveyor via the on-machine conveyor, the following effects are obtained. (1) It is possible to pay out from any of a plurality of piles arranged in series. (2) Since the slopes on both sides of the pile are linear and the central part of the pile is flat, the pattern of speed change can be simplified when the transverse speed is changed and fixed amount payout is performed. (3) Since the loose pieces are forcibly scraped from the pile from the chain bucket, there is no instability in payout due to the nature of the loose pieces unlike the bridge type reclaimer described in FIG. (4) Unlike the boom type reclaimer shown in Fig. 5, it can also be used for semi-underground piles or deeper storage tanks.

[Brief description of drawings]

FIG. 1 is a front view of a chain bucket reclaimer of the present invention.

FIG. 2 is a view as viewed in the direction of arrows AA in FIG. 1;

FIG. 3 is a view taken in the direction of arrows BB in FIG. 1;

FIG. 4 is a side view of the chain bucket.

FIG. 5 is a front view of a conventional boom type reclaimer.

FIG. 6 is a front view of a conventional bridge reclaimer.

FIG. 7 is a diagram showing a scraping portion of a boom type reclaimer.

[Explanation of symbols]

 1 Gate type frame 2 Traverse frame 3 Tilt frame 4 Chain bucket 5 Conveyor on board

Claims (1)

[Claims] 1. A gate-shaped frame that travels along a pile of bulk material across the pile, a traverse frame that traverses the gate-shaped frame, a tilting frame whose upper end is pivotally supported by the traverse frame, and a tilting frame. A tilting means for tilting up and down, an endless chain bucket that is hung along the tilt frame and rises from near the upper end of the tilt frame, and scrapes and conveys loose items from the pile, A chain bucket reclaimer characterized by comprising an on-board conveyor that is provided along the digits of the gate frame and conveys loose material discharged from the chain bucket to the end of the gate frame.