JPH0632430U - Chain bucket type continuous unloader bucket - Google Patents

Abstract

(57) [Summary] [Purpose] The posture of the bucket is securely held to efficiently scrape loose objects. [Structure] A bucket 20 supported by a guide rail provided on a scraping portion 7 of a bucket elevator via a guide roller 18 is moved by pulling a chain 14 interconnected with each other, and a scrap 6 on a front surface is used to remove a bulk object 6. A bucket 20 of a chain bucket type continuous unloader adapted to perform excavation of the bucket 20. The bucket 20 is lifted by contacting the lower surface of the guide rail with the rear portion of the guide roller 18 in the moving direction of the bucket 20. A posture holding roller 23 for preventing the above is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bucket of a chain bucket type continuous unloader.

[0002]

[Prior art]

 In recent years, a chain bucket type continuous unloader has been adopted as a cargo handling machine instead of the grabbed unloader, and the continuous unloader generally travels along a rail laid on the quay 1 as shown in FIG. A swing frame 4 having a freely tiltable boom 3 is provided on a movable traveling frame 2, and a scraping portion 7 for scraping off the bulk material 6 in the hold 5 is provided at the tip of the boom 3 to provide the bulk material. A bucket elevator 8 as an unloading device capable of unloading 6 from the hold 5 is hung, and a boom conveyor 9 capable of transporting the loose material 6 scraped by the bucket elevator 8 to the boom 3 base end side is suspended in the boom 3. There is provided a carry-out conveyor 10 that can carry out the articles 6 carried on the traveling frame 2 by the boom conveyor 9 to the outside of the traveling frame 2. It is disposed the chute 11 allowed to fall loose product 6 conveyed by the boom conveyor 9 onto unloading conveyor 10 between the unloading conveyor 10 and.

In the continuous unloader, the loose material 6 in the hold 5 is scraped off by the scraping section 7 of the bucket elevator 8 and carried out to the outside of the hold 5, and the boom conveyer 9 causes the tip of the boom 3 to move. From the side to the base end side, falls onto the carry-out conveyor 10 via the chute 11, and is carried out of the traveling frame 2 by the carry-out conveyor 10.

The scraping portion 7 of the bucket elevator 8 has two sprockets 12 and 12 as shown in FIG. 5, and a plurality of sprockets 12 and 12 are provided between the inside of the vertical portion of the bucket elevator 8 and the sprockets 12 and 12. An endless continuous chain 14 to which a bucket 13 is attached is stretched, and the bucket 13 is towed by the circulating movement of the chain 14 guided by the sprockets 12 and 12, and a bucket is provided below the sprockets 12 and 12. The bulk material 6 is excavated by 13 and scraped off.

Further, a general bucket 13 is as shown in FIGS. 6 and 7, and in the drawings, reference numeral 15 denotes a bucket main body, and the bucket main body 15 is provided from the upper side surface of the bucket main body 15 to the bucket main body. A bracket 16 is attached so as to surround the upper surface of 15. An attachment 17 is arranged on the side of the bucket body 15 of the bracket 16 and the bucket body 15 is attached to the chain 14 by connecting the attachment 17 to the chain 14 via a pin. . Further, a guide roller 18 is arranged on the upper surface of the bracket 16, and the guide roller 18 is guided and moved by a guide rail 19 arranged between the sprockets 12 of the scraping section 7. . Therefore, when the bucket 13 scrapes the loose material 6, the bucket 13 is held in the posture by being supported by the guide rail 19 via the guide roller 18.

[0006]

[Problems to be solved by the device]

 However, in recent years, it has become more and more common to unload loose particles 6 such as iron ore having large excavation resistance by a continuous unloader. Therefore, the excavation resistance of the bulk material 6 increases, and the bucket 13 receives a large moment to rotate about the guide roller 18, and the posture is maintained by supporting the guide rail 19 via the guide roller 18. However, there is a problem that the chain 14 bends more than necessary in the directions of the arrows A and B, the posture of the bucket 13 changes, and the scrap 6 cannot be efficiently scraped.

Further, in order to maintain the posture of the bucket 13, the chain 14 needs to be applied to the bucket 13 with a tension higher than that required for scraping the loose material 6, so that the durability of the chain 14 is improved. There was a problem that the chain 14 became short-lived due to weakened strength.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a bucket of a chain bucket type continuous unloader capable of reliably holding the attitude of the bucket and efficiently scraping loose particles. It is a thing.

[0009]

[Means for Solving the Problems]

 According to the present invention, a bucket supported by a guide roller provided on a scraping portion of an unloader via a guide roller is moved by pulling a chain interconnected with each other, while excavating a bulk material by a scraping opening on a front surface. In the bucket of the chain bucket type continuous unloader configured as described above, a posture holding roller that prevents the bucket from rising by contacting the lower surface of the guide rail at the rear of the guide roller in the bucket moving direction. The present invention relates to a bucket of a chain bucket type continuous unloader characterized by being arranged.

[0010]

[Action]

 While the buckets are moving by pulling the chains that are connected to each other, when scraping loose objects, the attitude holding roller of the bucket makes contact with the lower surface of the guide rail and slides. Rotation that lifts the back of the bucket around the center is prevented, and the bucket is held in a position suitable for scraping loose objects. Therefore, scraps can be scraped off efficiently.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show an embodiment of the present invention. In the drawings, the same components as those shown in FIGS. 6 and 7 are designated by the same reference numerals and the description thereof will be omitted. Hereinafter, only the configuration unique to the present invention will be described.

Reference numeral 20 in the drawing denotes a bucket, and the bucket 20 extends to the rear of the guide roller 18 in the moving direction of the bucket 20 on the bracket 16 of the bucket 13 shown in FIGS. 6 and 7. The arm 21 is fixed, and the pedestal 22 is fixedly arranged on the end of the arm 21 and the upper surface of the bucket body 15, and the pedestal 22 is brought into contact with the lower surface of the guide rail 19 to keep the bucket 20 from floating. The roller 23 is arranged.

When the loose object 6 is scraped off using the bucket 20 described above, the posture holding roller 23 prevents the rotation of the bucket 20 such that the rear part of the bucket 20 floats up around the guide roller 18, so that the iron ore Even when scraping off the bulk material 6 having a large excavation resistance such as, for example, the chain 14 does not bend more than necessary in the directions of arrows A and B, and the bucket 20 is held in an appropriate posture, which is efficient. The scrap 6 can be scraped off. Further, since the chain 14 can efficiently scrape the loose material 6 only by applying a tension required for scraping to the bucket 20, the durability of the chain 14 is improved and the chain 14 Has a long life.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made without departing from the scope of the present invention.

[0016]

[Effect of device]

 As described above, according to the bucket of the chain bucket type continuous unloader of the present invention, the following excellent effects can be obtained.

(I) Since the posture-maintaining roller prevents rotation such that the rear part of the bucket floats up around the guide roller, the bucket does not move even when scraping bulk material having a large excavation resistance. Maintains a proper posture to efficiently scrape loose objects.

(II) Since the rotation of the bucket is prevented by the posture holding roller, the chain only needs to apply the tension necessary for scraping to the bucket, and therefore the durability of the chain is improved. However, the life of the chain can be extended.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention.

FIG. 2 is a partial arrow view in the II-II direction of FIG.

FIG. 3 is a partial plan view of FIG.

FIG. 4 is an overall schematic diagram showing an example of a chain bucket type continuous unloader.

FIG. 5 is a schematic view showing a scraping portion of a bucket elevator.

FIG. 6 is a side view showing an example of a conventional bucket.

FIG. 7 is a partial arrow view in the VII-VII direction of FIG.

[Explanation of symbols]

 7 Scraping part 8 Bucket elevator 14 Chain 18 Guide roller 19 Guide rail 20 Bucket 23 Posture holding roller

Claims (1)

[Scope of utility model registration request] 1. A bucket supported on a guide rail provided in a scraping portion of a bucket elevator via guide rollers is moved by pulling chains interconnected with each other, while excavating bulk material by a scraping opening on the front surface. A bucket of a chain bucket type continuous unloader configured to perform a posture holding roller that abuts the lower surface of the guide rail at the rear portion of the guide roller in the bucket moving direction to prevent the bucket from floating. Chain bucket type continuous unloader bucket characterized by being installed.