GB2278330A

GB2278330A - Bucket conveyor

Info

Publication number: GB2278330A
Application number: GB9311010A
Authority: GB
Inventors: Karl Ernst Zimmer
Original assignee: O&K Orenstein and Koppel GmbH
Current assignee: CNH Industrial Baumaschinen GmbH
Priority date: 1992-03-05
Filing date: 1993-05-28
Publication date: 1994-11-30
Also published as: DE4206874A1; DE4206874C2; GB9311010D0

Description

2278330 BUCKET CONVEYOR The invention relates to a bucket conveyor that

has at least one revolving traction means to which the individual receiving elements are attached, and to a ship unloading device that includes such a bucket conveyor.

DE-OS 27 17 109 relates to a continuous mechanical handling apparatus for the upward conveying of bulk goods with bucket- or scraper-like conveyor units. The conveyor units are arranged along an endless support that is guided round deflecting rollers with horizontal axes of rotation, each conveyor unit having a conveying wall for carrying along the bulk goods that connects two side walls. The conveyor units each have an insert which bears on the conveying wall on the inside and is constructed so as to be movable in itself to a limited degree, or mounted so as to be movable to a limited degree, in the conveying direction, with respect to the conveying wall. The conveying walls are mounted in the foot region, so as to be pivotable to a limited degree, or are sub-divided in a jointed manner at least once over their height. The inserts are in the form of skirts of rubbery resilient material fastened in the region of the support. Bucket conveyors of this configuration provide effective emptying of material in the discharge region, especially as the material cakes less severely onto the rubber than onto the actual receiving element, which generally consists of steel. When using such a bucket 2 - conveyor, for example as a ship unloader, there is the risk when bulk goods are being unloaded that, as the ship rides the wavesthe buckets that are in engagement will be pressed onto the goods and deformed, depending on the hardening of the goods. The same also applies during discharge of the residue, when the deck of the ship is in the immediate vicinity of the buckets.

The aim of the invention is to prevent the buckets becoming deformed, in order thus to avoid unnecessary bucket conveyor standstill times and the high repair costs involved therein.

According to the present invention, there is provided a bucket conveyor including at least one revolving traction means to which the individual receiving elements are attached, each receiving elementcomprising a carrier part which is rigid in the conveying direction and, arranged underneath, a resiliently yielding material-receiving region.

Advantageously, the material-receiving region comprises a rubber bucket.

The material-receiving region may be surrounded by an elastically deformable carrying frame.

The carrying frame may be formed of steel leaf springs.

The bucket conveyor may include at least one leaf spring in the rear region and in each of the side wall regions of the material-receiving region.

3 - The leaf springs may be connected in an articulated manner to corresponding regions of the carrier part.

The carrier part may be connected to the traction means.

The material-receiving region may be provided with scarifying teeth.

The material-receiving region may be provided with guide plates that form cutting edges.

The guide plates may be exchangeably mounted in the upper cutting region.

The guide plates may be mounted obliquely in the upper cutting region.

The present invention further provides a ship unloading device including a bucket conveyor as described is above.

According to a preferred embodiment of the invention, the receiving elements each comprise a carrier part which is rigid in the conveying direction and, arranged underneath, a resiliently yielding materialreceiving region.

The carrier part is connected to the traction meansf the actual receiving elements being formed of carrying frames of leaf spring steel with inserted rubber buckets, which when compressed by goods or the deck of the ship are resiliently deformed and return to their initial shape when released from load. The pre-shaped leaf springs are preferably connected in an articulated manner to the rigid carrier part. Frequent repair or replacement of the receiving elements is thereby avoided, thus saving on costs and increasing the availability of the apparatus. The receiving elements, in order to loosen the bulk goods and to protect the actual cutting edge, are provided with scarifying teeth. Furthermore, each bucket has so- called cutting guide plates in the upper cutting region, which are exchangeable and brought to bear obliquely, in order thus to be able to effect improved filling of the bucket or buckets.

An embodiment of the invention will now be described, by way of example, with reference to the accompanying drawings, in which:

Figure 1 is a side view of an individual receiving element, and Figure 2 is a plan view of the receiving element shown in Figure 1.

Figures 1 and 2 show different views of a receiving element 1 for a bucket conveyor, and especially a ship unloader, which is not shown in further detail. The receiving element 1 consists of a multi-part rigid carrier part 2 and, arranged underneath, a resiliently yielding material-receiving region 3. The materialreceiving region is formed by a resiliently deformable carrying frame 4, 5, which is formed of steel leaf springs and receives a rubber bucket 6. The individual leaf springs 4, 5 are arranged in the rearward region 7 and in the side regions 8 of the rubber bucket 6. The leaf springs 4, 5 are attached by means of joints 9, 10 to the corresponding regions of the carrier part 2. The material receiving region 3 is thus resiliently deformable when compressed by goods or the deck of the ship, and can return to its normal shape when released from load. The resilient deformation region is indicated by A. In the region of the cutting edge 11 of the rubber buckets 6, scarifying teeth 12 are arranged to loosen the bulk goods and to protect the cutting edge 11. So-called cutting guide plates 14 are arranged in the upper cutting region 13, to guide the material into the rubber bucket 6. The guide elements 14 are exchangeably fastened in the upper cutting region 13 of the receiving element.

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Claims

CLAIMS: 1. A bucket conveyor including at least one revolving traction

means to which the individual receiving elements are attached, each receiving element comprising a carrier part which is rigid in the conveying direction and, arranged underneath, a resiliently yielding materialreceiving region.
2. A bucket conveyor according to Claim 1, in which the material-receiving region comprises a rubber bucket.
3. A bucket conveyor according to Claim 1 or Claim 2, in which the material-receiving region is surrounded by an elastically deformable carrying frame.
4. A bucket conveyor according to Claim 3, in which the carrying frame is formed of steel leaf springs.
5. A bucket conveyor according to Claim 4, including at least one leaf spring in the rear region and in each of the side wall regions of the material-receiving region.
6. A bucket conveyor according to Claim 4 or Claim 5, in which the leaf springs are connected in an articulated manner to corresponding regions of the carrier part.
7 A bucket conveyor according to any one of Claims 1 t 7 - to 6, in which the carrier part is connected to the traction means.
8. A bucket conveyor according to any one of Claims 1 to 7, in which the material-receiving region is provided with scarifying teeth.
9. A bucket conveyor according to any one of Claims 1 to 8, in which the material-receiving region is provided with guide plates that form cutting edges.
10. A bucket conveyor according to Claim 9, in which the guide plates are exchangeably mounted in the upper cutting region.
11. A bucket conveyor according to Claim 9 or Claim 10, in which the guide plates are mounted obliquely in the upper cutting region.
12. A ship unloading device including a bucket conveyor according to any one of the preceding claims.

12. A bucket conveyor, substantially as described herein with reference to, and as illustrated by, the accompanying drawings.

13. A ship unloading device including a bucket conveyor according to any one of the preceding claims.

5_ Amendments to the claims have been filed as follows CLAIMS:

A bucket conveyor including at least one revolving traction means to which the individual receiving elements are attached, each receiving element comprising a carrier part which is rigid in the conveying direction and, arranged underneath, a resiliently yielding materialreceiving region, the material-receiving region being surrounded by an elastically deformable carrying frame.

2. A bucket conveyor according to Claim 1, in which the carrying frame is formed of steel leaf springs.

3. A bucket conveyor according to Claim 2, including at least one leaf spring in the rear region and in each of the side wall regions of the material-receiving region.

4. A bucket conveyor according to Claim 2 or Claim 3, in which the leaf springs are connected in an articulated 5 manner to corresponding regions of the carrier part.

5. A bucket conveyor according to any one of Claims 1 to 4, in which the material-receiving region comprises a rubber bucket.

6. A bucket conveyor according to any one of Claims 1 to 5, in which the carrier part is connected to the traction means.

q 7. A bucket conveyor according to any one of Claims 1 to 6, in which the material-receiving region is provided with scarifying teeth.

8. A bucket conveyor according to any one of Claims 1 to 7, in which the material-receiving region is provided with guide plates that form cutting edges.

9. A bucket conveyor according to Claim 8, in which the guide plates are exchangeably mounted in the upper cutting region.

10. A bucket conveyor according to Claim 8 or Claim 9, in which the guide plates are mounted obliquely in the upper cutting region.

11. A bucket conveyor, substantially as described herein with reference to, and as illustrated by, the accompany15 ing drawings.