JPH0724829U - Continuous unloader - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent wear of chain rollers and guide members provided in the bucket feeder. [Structure] A bucket 17 mounted on an endless chain 16 hung between an upper sprocket and a lower sprocket 14 of a bucket elevator 12 and a scraping sprocket 15 is moved in an endless track to scrape. The load is scraped by the load scraping unit 18 between the sprocket 15 and the lower sprocket 14, and the upper sprocket part is unloaded.
The emptied bucket 17 is circulated to be returned to the load scraping unit 18, and a rotatable chain guide roller 35 as a guide member is provided at the direction changing portion of the chain 16 in the bucket feeding unit 21. By rotating the chain guide roller 35, wear of the chain guide roller 35 and the chain 16 is prevented.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a continuous unloader.

[0002]

[Prior art]

 FIG. 2 shows a continuous unloader. In the figure, 1 is a quay, 2 is a ship docked on the quay 1, 3 is an outer plate of the ship 2, 4 is a hold inside the ship 2, 5 is a hold 4 It is a rib for reinforcing the outer plate 3 provided on the side.

A rail 6 extending in the longitudinal direction of the vessel 2 is provided on the quay 1, a traveling body 7 capable of traveling along the rail 6 is provided, and a revolving body 8 is provided on the traveling body 7 so as to be horizontally rotatable. A boom 10 is provided on a post 9 attached to the body 8 so that the boom 10 can be lifted up and down, and a bucket elevator 12 is attached to the tip of the boom 10 via an upper frame 11 so as to be horizontally rotatable.

The bucket elevator 12 has an upper sprocket 13 driven by a drive device (not shown), a lower sprocket 14 provided below the upper sprocket 13 at a distance, and a lateral distance from the lower sprocket 14. The endless chain 16 is hung between the scraping sprocket 15 and the bucket 17, and the bucket 17 is attached to the chain 16 at a predetermined interval so that the bucket 17 can be removed by the scraping sprocket 15. A load scraping unit 18 is provided between the reversing portion and the lower sprocket 14, a load feeding unit 19 is provided between the lower sprocket 14 and the upper sprocket 13, and an unloading unit 20 is provided at a reversing portion of the bucket 17 by the upper sprocket 13. A bucket feeder 21 is provided between the sprocket 13 and the scraping sprocket 15. , Formed respectively.

Reference numeral 26 is a chain guide plate provided in the direction changing portion of the chain 16 in the bucket feeding unit 21.

As shown in FIG. 3, the chain 16 has bushes 28 fitted and fixed between both ends of a pair of inner ring plates 27 arranged at intervals. A chain block 30 in which rollers 29 are rotatably fitted is provided on the outer periphery, and a large number of the chain blocks 30 are arranged side by side. The outer ring plate 31 and the inner ring plate 27 are connected to the bush 28 by a shaft 32 that rotatably passes through the bushing 28. The chain guide plate 26 guides the chain 16 at the direction changing portion of the bucket feeder 21. When this is done, the roller 29 rolls along the chain guide plate 26.

A seal 33 is interposed between the inner ring plate 27 and the outer ring plate 31.

On the other hand, as shown in FIG. 2, the upper frame 11 is provided with a table feeder 22 for receiving a load unloaded by the unloading section 20 of the bucket elevator 12, and the table feeder 22 is installed under the boom 10 to collect the load. A boom conveyor 23 that conveys the loaded load to the revolving structure 8 side is provided, and an in-machine conveyor 24 that receives the load from the boom conveyor 23 and discharges it outside is provided inside the traveling structure 7.

In the figure, reference numeral 25 is a cable tray that receives a load from the in-machine conveyor 24.

Then, by moving the traveling body 7, the revolving structure 8 and the boom 10, the lower sprocket 14 and the scraping sprocket 15 of the bucket elevator 12, ie, the scraping sprocket 15, are attached to the hold 4 of the ship 2 docked on the quay 1. The load scraping section 18 is inserted, and the upper sprocket 13 is driven by a driving device (not shown).

Then, the bucket 17 is moved in an endless track via the endless chain 16, and the bucket 17 scrapes the load in the hold 4 at the load scraping section 18.

The bucket 17 that has scraped the load by the load scraping unit 18 is moved upward in the load feeding unit 19, and the bucket 17 reaches the upper sprocket 13 and is inverted, so that the load unloading unit 20 moves from the table feeder. The load is unloaded to 22.

The bucket 17 that has been emptied of the load is then sent again to the load scraping unit 18 through the bucket feeding unit 21, and thereafter, by repeating the above operation, continuous operation is performed. Then, unloading is performed.

On the other hand, the goods unloaded to the table feeder 22 are sent from the table feeder 22 to the boom conveyor 23, and are conveyed from the boom conveyor 23 to the cable tray 25 via the in-machine conveyor 24.

[0015]

[Problems to be solved by the device]

 However, the conventional continuous unloader described above has the following problems.

That is, when the chain guide plate 26 is provided at the direction changing portion of the chain 16 in the bucket feeding unit 21 and the chain 16 is guided by the chain guide plate 26, the roller 29 rolls along the chain guide plate 26. However, when actually guiding the chain 16 with the chain guide plate 26, the roller 29 is not properly rolled, and friction is generated between the chain guide plate 26 and the roller 29. There were problems such as wear of the chain guide plate 26 and generation of a flat portion 34 as shown in FIG. 4 on the surface of the roller 29.

As described above, the reason why the roller 29 does not roll is that if the roller 29 is thick, the radius difference between the inner peripheral surface and the outer peripheral surface of the roller 29 becomes large, and Since there is a difference in the ease of sliding of the outer peripheral surface, sliding occurs on the inner peripheral surface side of the roller 29, and the roller 29 is reliably rotated. However, since the roller 29 is thin. Since the difference in radius between the inner peripheral surface and the outer peripheral surface of the roller 29 is small, and there is almost no difference in the ease of sliding between the inner peripheral surface and the outer peripheral surface of the roller 29, either the inner peripheral surface or the outer peripheral surface of the roller 29 slides. It is thought that the state of the roller 16 is not known, and the dirt of the chain 16 and the galling of the bush 28 and the roller 29 are added to the state, and the outer peripheral surface of the roller 29 is slid.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a continuous unloader capable of preventing wear of a roller of a chain and a guide member provided in a bucket feeding section. .

[0019]

[Means for Solving the Problems]

 The present invention provides an endless structure between an upper sprocket, a lower sprocket that is spaced below the upper sprocket, and a scraping sprocket that is laterally spaced from the lower sprocket. By hooking the chain and attaching a bucket at a predetermined interval to the chain, a load scraping part is provided between the reverse part of the bucket with the scraping sprocket and the lower sprocket, and the lower sprocket is used. Configure a bucket elevator that has a cargo feed section between the upper sprocket, an unloading section at the inverted portion of the bucket by the upper sprocket, and a bucket feed section between the upper sprocket and the scraping sprocket. A chain guide roller that changes the direction of the chain is rotatably installed in the middle of the part. It relates to the unloader.

[0020]

[Action]

 The operation of the present invention is as follows.

When an upper end sprocket, a lower sprocket, and a scraping sprocket laterally spaced from the lower sprocket of the bucket elevator are driven, an endless chain is driven. The buckets, which are installed at a predetermined interval on the track, are moved in an endless track, and the load is scraped off by the load scraping part formed between the reversing part of the bucket by the scraping sprocket and the lower sprocket. The load is sent through the load-feeding part formed between the rocket and the upper sprocket, and is unloaded at the unloading part formed at the inverted part of the bucket by the upper sprocket, and the upper sprocket and the scraping sprocket are The bucket is circulated to the load scraping unit via the bucket feeding unit formed between the bucket and the unit.

In order for the chain to move from the upper sprocket to the scraping sprocket, it is necessary to change the direction in the middle of the bucket feeding unit, so a guide member is provided in the direction changing unit. By using a rotatable chain guide roller, the chain guide roller can be rotated to prevent friction with the chain and wear of the chain guide roller and chain.

[0023]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows an embodiment of the present invention.

Since the entire configuration is the same as that of FIGS. 2 to 4, reference will be made to FIGS. 2 to 4 as necessary.

In the figure, 14 is a lower sprocket of the bucket elevator 12, 15 is a scraping sprocket, 16 is a chain suspended on the scraping sprocket 15, and 17 is attached to the chain 16 at a predetermined interval. The bucket, 18 is a load scraping unit in the bucket elevator 12, and 21 is a bucket feeding unit.

A chain guide roller 35 is rotatably provided at a direction changing portion of the chain 16 in the bucket feeding unit 21 of the bucket elevator 12.

The chain guide roller 35 is a driven wheel.

Next, the operation will be described.

The process of scraping the cargo in the hold 4 by the bucket elevator 12 and carrying it to the cable tray 25 using the boom conveyor 23 and the in-machine conveyor 24 is the same as in the case of FIG.

In the present invention, since the chain guide roller 35 is provided at the portion of the bucket feeder 21 of the bucket elevator 12 where the direction of the chain 16 is changed, the chain guide roller 35 is rotated so that the chain guide roller 35 rotates. The friction between the 16 rollers 29 is eliminated, and the chain guide roller 35 and the rollers 29 provided on the chain 16 can be prevented from being worn.

It should be noted that the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

[0033]

[Effect of device]

 As described above, according to the continuous unloader of the present invention, it is possible to obtain an excellent effect that it is possible to prevent wear of the roller of the chain and the guide member provided in the bucket feeding unit.

[Brief description of drawings]

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

FIG. 2 is a schematic overall side view of a conventional example.

FIG. 3 is a partially cutaway plan view of the chain.

FIG. 4 is a diagram showing a worn state of a roller of a chain.

[Explanation of symbols]

 13 Upper sprocket 14 Lower sprocket 15 Sprocket for scraping 16 Chain 17 Bucket 18 Scraping part 19 Loading part 20 Unloading part 21 Bucket feeding part 35 Chain guide roller

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroaki Tabata 1-19-10 Mori, Koto-ku, Tokyo Ishikawajima Harima Heavy Industries Co., Ltd. Koto Office

Claims (1)

[Scope of utility model registration request] 1. An endless structure between an upper sprocket, a lower sprocket spaced below the upper sprocket, and a scraping sprocket laterally spaced from the lower sprocket. A chain is hooked and a bucket is placed at a predetermined interval on the chain to attach a bucket, thereby providing a load scraping section between the reverse portion of the bucket by the scraping sprocket and the lower sprocket.
A loading section is provided between the lower sprocket and the upper sprocket, an unloading section is provided at a portion where the bucket is reversed by the upper sprocket, and a bucket elevator having a bucket feeding section is provided between the upper sprocket and the scraping sprocket, respectively. A continuous unloader characterized in that a chain guide roller for changing the direction of the chain is rotatably provided in the middle of the bucket feeding unit.