JP7011625B2 - Bucket type transfer device - Google Patents

Description

The present invention relates to an improvement of a bucket type transport device for transporting an object to be transported using a continuous bucket.

Conventionally, as a bucket-type transfer device for accommodating and transporting an object to be transported such as powder or granular material in a bucket supported by an endless chain, for example, the bucket conveyor of Japanese Patent Application Laid-Open No. 2012-240832 described in Patent Document 1 and Japanese Patent Application Laid-Open No. 2012-240832. The bucket type conveyor of 2017-61378 is known.
In the former, a large number of buckets supported at both ends by a pair of left and right endless chains are used to store and transport powdery or granular material, and the endless chain is circulated while being folded back from the upper horizontal movement area to the lower movement area. In a bucket conveyor that drops and carries out the conveyed material in the inverted bucket from the discharge port provided at the lower position of the discharge port side sprocket that inverts the vertical posture, the bucket can accommodate the powder or granular material-shaped conveyed material. A sprocket rotation shaft that has a storage bottom made of a flexible sheet and pushes the storage bottom of the bucket toward the opening side to push down and discharge the conveyed material is used as a sprocket rotation shaft that pivotally supports the discharge port side sprocket. It is characterized by being provided.
However, in the above configuration, since the flexible sheet is bent in a U shape and attached between the pair of cross members laid horizontally on the upper end and the lower end of the bucket to form a flexible bottom portion, the flexibility of each bucket is obtained. Since the sheets are independent, the flexible sheets do not interlock and deform between the buckets adjacent to each other in the front and rear, and there is a possibility that a gap may be generated between the flexible bottom portions continuous in the front and rear and the conveyed object may fall.
Further, since one link is fixed to one bucket, there is a problem that if the capacity of the bucket is increased, the chain also becomes large.

The latter includes an endless chain provided so as to be able to move around an endless circulation path, and a plurality of buckets supported by the endless chain.
The bucket is a recess forming member that forms a pair of left and right side plates fixed to the pair of left and right endless chains and a housing recess that is open on one side in cooperation with the pair of side plates when assembled to the pair of side plates. And have
In the side plate, the portion of the recess forming member that becomes the bottom wall of the housing recess is located on the inner peripheral side of the circulation path when the bucket is horizontally transported with the opening of the housing recess facing upward. Fixed to the endless chain so that it always moves
The recess-forming member has a front rising plate portion whose upper end serves as a front end edge of an opening of the accommodation recess at a portion that becomes a front side wall of the accommodation recess during horizontal transportation, and also has a front rising plate portion of the accommodation recess during horizontal transportation. The portion to be the rear side wall has a rear lowering plate portion located above the upper end of the front rising plate portion.
Each bucket adjacent in the front-rear direction has the upper end of the front rising plate portion in the bucket submerged in the lower region of the rear falling plate portion in another adjacent bucket in front of the bucket, and the endless portion is inserted. It is characterized by being supported by the chain.
However, in the above configuration, there is a problem that the structure becomes complicated because the bottom of the bucket is not flexible and cannot be deformed.

Japanese Unexamined Patent Publication No. 2012-240832 Japanese Unexamined Patent Publication No. 2017-61378

The problem to be solved by the present invention is that a flexible sheet is used for the storage portion of the bucket, and one edge member is hung and fixed between the left and right side plates of the bucket to fix the buckets adjacent to each other in the front-rear direction. It is easy by fixing one end side of the flexible sheet to one front surface side of each edge member and fixing the other end side to the back surface side of the edge member of the front bucket to form a flexible storage portion. A continuous bucket conveyor can be provided in the structure.

The present invention is to solve the above problems.
In a bucket conveyor that transports continuous buckets supported on both ends by a pair of left and right endless chains along a transport path.
The bucket has a pair of left and right side plates and an edge member laid horizontally above the intermediate position of the pair of side plates to fix the side plates, and the bucket is relatively rearward of the buckets that are continuous in the front-rear direction. One end of the flexible sheet is fixed to the front surface side of the edge member, and the other end curved in a U shape is fixed to the back surface side of the edge member of the front bucket to accommodate the flexible storage portion of the rear bucket. It is characterized by becoming.
The endless chain has a two-link configuration, and is characterized in that one of the two links is fixed to the side plate of the bucket.

INDUSTRIAL APPLICABILITY According to the present invention, a bucket can be configured only by a side plate, an edge member, and a flexible sheet, and a flexible storage portion formed of the flexible sheet can be freely accommodated according to a displacement between adjacent buckets. It can be deformed, no load is applied to the buckets, and the storage capacity of the conveyed items can be increased while narrowing the interval between continuous buckets.
Further, since the endless chain has two links as one unit and one of which is fixed to the bucket, the radius of gyration by the sprocket can be narrowed and the weight can be reduced.

It is an overall schematic view of the bucket conveyor of Example 1. FIG. It is a perspective view which shows the bucket and the chain. It is explanatory drawing which saw from the side surface which provided 5 push rods radially and at equal intervals on the rotation axis of a drive sprocket. (A) to (e) are explanatory views in which the arrangement of the five push rods is arranged differently in the width direction, and the weights are provided in the same row as the push rods so that the positions do not overlap in the width direction. It is explanatory drawing which saw from the side surface of the bucket when the transport direction is horizontal. It is explanatory drawing which saw from the side surface of the bucket when the transport direction is reversed. It is explanatory drawing which saw from the side surface of the bucket when the transport direction is displaced at a substantially right angle. It is explanatory drawing which saw from the side surface of the bucket when the transport direction is vertical. It is explanatory drawing seen from the side of a bucket.

Hereinafter, a preferred embodiment in which the bucket type transfer device of the present invention is applied to a continuous bucket conveyor will be described with reference to the drawings.

As shown in FIG. 1, in the bucket conveyor 1 of the first embodiment, as shown in FIG. 1, both ends of the conveyed material M such as sand basin and residue charged from the charging port 11 of the conveyor case 10 are fixed to a pair of left and right endless chains 20. It is sequentially housed in a large number of buckets 30.
After that, the conveyed material M housed in these buckets 30 is conveyed from the horizontal direction to the vertical direction toward the discharge port 12 of the conveyor case 10, and further, the direction is changed from the vertical direction to the horizontal direction and the sprocket on the discharge port side. The endless chain 20 is rotated by the 41 while being folded back from the upper horizontal course to the lower vertical course, and at the same time, the vertical posture of the bucket 30 is reversed.
Then, the conveyed object M in the bucket 30 is dropped and discharged from the discharge port 12, and has a known configuration installed as a high-lift type transfer line having a height difference between the input port 11 and the discharge port 12. ing.

The input port 11 is generally installed horizontally, but may be inclined in the present invention (not shown).
The charged material is stored and transported in a portion partitioned by the side plate 33 of the bucket 30 and the edge member 32 which is a partition plate described later.
The transported material loaded into the bucket 30 at the loading port 11 is transported as shown in FIG. 8 at the vertical portion of the transport path, and the partition plate can secure the maximum transport amount in the vertical transport path.

The endless chain 20 is composed of a pair of left and right endless chains fixed to the left and right outside of the bucket 30 (see FIG. 2).
The sprocket 41 on the carry-out port side, which is the drive source, serves as the drive sprocket, and the sprocket 42 provided on the input port 11 side serves as the driven sprocket and is hung. A plurality of driven sprockets 43 for relay that change the direction or change the direction from the vertical direction to the horizontal direction are provided.

As shown in FIG. 2, the endless chain 20 has one bucket 30 installed on two links L1 and L2 of the chain.
This is because, in the configuration where one bucket is fixed to one link as in the conventional case, it is necessary to increase the pitch of the chain in order to increase the bucket, which causes the sprocket wheel to become large, and the bucket conveyor 1 has a large size. There is a drawback that the height is also high, but on the other hand, the two-link L1 and L2 configurations of this embodiment have the advantage that the connecting portion can be lowered.

As shown in FIG. 2, the bucket 30 has a pair of left and right side plates 33, an edge member 32 connecting the side plates 33, and an end portion fixed to the edge member 32, and can accommodate a conveyed object M. It is composed of a flexible storage portion 31 made of an elastic rubber sheet or a flexible sheet such as an elastomer.

Further, the first half portion (or the second half portion) in the traveling direction of each side plate 33 is formed in the step 34, and a part of the side plates of the buckets 30 adjacent to each other in the front and rear are doubly overlapped, one or both. Even if the bucket is displaced, there is no gap between the buckets.

The edge member 32 is arranged in the upper part near the center of the side plate 33 during horizontal transportation, and is fixed so as to connect the left and right side plates 33 in parallel.
Further, although not shown, by projecting the upper end of all or part of the edge member 32 longer (higher) than the upper end of the side plate 33, the conveyed object spilled from the previously conveyed bucket 30 is scooped into the bucket 30. It can also be stored in.

Next, taking advantage of the flexibility of the center of the bottom of the flexible storage portion 31 of the bucket 30, the flexible storage portion is pushed from the back surface side at the discharge port 12 by pushing the bottom of the flexible storage portion 31 of the bucket 30. It is possible to prevent the transported object stored in 31 from adhering and make it easier to drop.
In a continuous bucket conveyor, the discharge port 12 cannot be scraped off with a cleaner like a belt conveyor. Therefore, it is known that the conveyed material attached to the inner surface of the bottom of the bucket 30 is peeled off from the bottom of the bucket 30 and dropped onto the chute by hitting it with a beater cleaner from the back side of the bucket.

Therefore, if a mechanism for pushing the flexible storage portion 31 of the bucket 30 from the back is provided, the bottom portion can be deformed to provide a gap between the transported object and the bottom portion so that the bucket 30 can be easily dropped.
Since this can be attached to the drive shaft 41a of the sprocket 41, it is not necessary to provide a separate rotation mechanism as in the conventional beater cleaner.

In this embodiment, five push rods 50a to e are projected radially, and the protruding positions of the push rods are arranged so as to be offset in the width direction, so that different positions of the flexible storage portion 31 are pierced by the push rods. Can be done (see Figure 3).
Further, together with the push rods 50a to e, weights 51a to e with a string may be provided on the drive shaft 41a (see FIG. 4).

The weights 51a to e can be dropped onto the flexible storage portion 31 to deform the flexible storage portion 31 by the push rods 50a to 50 at a further different position.
In this way, many positions such as push rods and weights to be attached to the drive shaft are attached, and when the flexible storage portion 31 of one bucket 30 comes to the discharge position, the pushing position is changed to efficiently peel off. It is possible to have a mechanism to make it.

As a result, when the endless chain 20 is bent when it is hooked on the driving sprocket wheel 41, it can be deformed so that an unreasonable load is not applied to the deformation of the intermediate portion of the flexible storage portion 31 of the bucket 30.

The flexible storage portion 31 is a flexible storage portion 31 that becomes a flexible storage portion 31 on the back surface of an edge member (32') of a bucket (referred to as 30'for convenience of explanation) in front of a bucket 30 that is continuous in the front-rear direction. The tip of the sex sheet is fixed, and the rear end of the flexible sheet is fixed to the front surface of the edge 32 of the rear bucket 30 (see FIGS. 2 and 5).

Further, the links L1 in front of the links L1 and L2 constituting one unit of the endless chain 20 described above are fixed to each of the angle-shaped brackets 35 fixed to the left and right side plates 33 of the bucket 30 (see FIG. 2). ).
Here, the link L1 is composed of a pair of two link members extending in parallel, and the link L2 is composed of one link member fitted in the center of the link L1 and is pivotally attached by the pivot axis P. A fixing piece (not shown) fixed to the bracket 35 is provided so as to project from the link member of the link L1 near the bucket.

The buckets 30 are arranged for each link L1 constituting the endless chain 20, and the push rods 50a to 50 are arranged radially on the rotation axis of the sprocket 41 on the discharge port side at intervals of 72 degrees. As a result, the conveyed material M, which tends to remain in the bucket 30, can be easily pushed down.
The present invention is not limited to the above embodiment, and various design changes can be made without changing the gist of the present invention.

1 ・ ・ ・ Bucket conveyor 10 ・ ・ ・ Conveyor case 11 ・ ・ ・ Input port 12 ・ ・ ・ Discharge port 20 ・ ・ ・ Endless chain 30 ・ ・ ・ Bucket
31 ・ ・ ・ Flexible storage part 32 ・ ・ ・ Edge member 33 ・ ・ ・ Bucket side plate 34 ・ ・ ・ Step part 41 ・ ・ ・ Discharge port side sprocket 41a ・ ・ ・ Discharge port side sprocket drive shaft 42 ・ ・ ・ Insertion Mouth side sprocket 43 ・ ・ ・ Relay sprocket 50a ～ e ・ ・ ・ Drop bar 51a ～ e ・ ・ ・ Weight M ・ ・ ・ Transport

Claims (2)

In a bucket conveyor that transports continuous buckets supported on both ends by a pair of left and right endless chains along a transport path.
The bucket has a pair of left and right side plates and an edge member laid horizontally above the intermediate position of the pair of side plates to fix the pair of side plates, and the buckets are relatively continuous in the front-rear direction. The tip of the flexible sheet serving as a flexible storage portion is fixed to the back surface of the edge member of the front bucket, and the rear end of the flexible sheet is fixed to the front surface of the edge member of the rear bucket. The upper end of all or part of the edge member is projected longer than the upper end of the side plate.
The endless chain is composed of two link members in which the front link extends in parallel in a pair, and the rear link is composed of a link member fitted in the center of the front link by an axis. It is pivotally attached and
A bucket-type transport device characterized in that the left and right side plates of the bucket are fixed only to the link member near the bucket of the front link . A sprocket for driving an endless chain is provided near the discharge port, and five push rods are radially projected on the rotation axis of the sprocket at equal intervals in the outer peripheral direction, or a weight with a string is provided together with the push rods. The protrusion position of the push rod or the weight is staggered in the width direction, and the tip of the push rod or the tip of the push rod and the weight can push out the bottom of the flexible storage portion of the bucket from the back surface. The bucket type transfer device according to claim 1.

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