JPH09315537A - Bucket elevator - Google Patents

Abstract

(57) Abstract: [PROBLEMS] To provide a bucket elevator having a structure capable of adopting a shallow bucket suitable for conveying an adhesive material. SOLUTION: Upper chain wheels 3 and 3'and lower chain wheels 4 and 4'arranged above and below a casing 2.
Wrap the chains 5, 5'between them,
The bucket 6 mounted on the ‘′ is attached so as to drop the material into the casing 2 when the casing is rotated. Further, a material discharging means for receiving the material dropped from the bucket and guiding the material to the outside of the casing 2 is arranged in the casing 2. Further, by adopting a structure in which the material conveyed by the bucket 6 is dropped into the casing 2 and guided to the outside of the casing 2 by the material discharging means, it is possible to adopt a bucket having a shallow bottom, which is also suitable for conveying an adhesive material. I shall.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bucket elevator for conveying loose material such as sand upwards, and more particularly to a bucket elevator suitable for conveying tacky materials such as asphalt mixture which is a road paving material. Regarding the elevator.

[0002]

2. Description of the Related Art Centrifugal discharge type and induction discharge type bucket elevators are generally known as conventional bucket elevators. In the centrifugal discharge type, a centrifugal force is applied to the material by the momentum of the bucket turning at the upper part of the casing. It is a method of generating and discharging, and the induction discharging method is a method of discharging while sliding the material using the back surface of the preceding bucket.

[0003]

The bucket elevator has no problem in transporting ordinary materials. For example, when the bucket elevator is used as a device for transporting asphalt mixture in an asphalt plant for manufacturing road paving materials. ,
It is feared that an asphalt mixture or waste material having adhesiveness will be deposited and deposited on the bottom of the bucket to cause a functional problem, and it is rarely used even though it is a space-saving and efficient transport device.

It is considered that a shallow bucket is suitable for transporting an adhesive material such as an asphalt mixture material, but a centrifugal discharge type bucket elevator speeds up the transportation speed and uses the centrifugal force. Because it is a discharge method, the bucket is deep so that the material does not spill. Therefore, if the adhesive material is conveyed, the material is likely to adhere to the bottom of the bucket, and if this adhesion grows, it is expected to cause a functional problem, and therefore it cannot be used without taking any measures. Further, since the induction discharge type bucket elevator uses the back surface of the preceding bucket as a guide chute for discharging the material, when the adhesive material is conveyed, the material may adhere to the back surface of the bucket, which is difficult to adopt. Of.

In view of the above points, the present invention has an object to provide a bucket elevator having a structure capable of adopting a bucket having a shallow bottom suitable for conveying a material having an adhesive property.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention comprises a casing having a material discharge chute at the upper portion and a material inlet at the lower portion, and chain wheels arranged at both upper and lower ends thereof. In a bucket elevator in which an endless chain is wound between the chain wheels and a large number of transport buckets are mounted on the chain at predetermined intervals, the bucket mounted on the chain drops the material into the casing when the casing is turned over. In addition to the above-mentioned mounting, a material discharging means for receiving the material dropped from the bucket and guiding it to the outside of the casing is arranged in the casing.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION When material is conveyed by the bucket elevator of the present invention, when the bucket scooping the material at the lower part of the casing ascends and reaches the position of the upper chain wheel, it starts turning. During the process of turning along the chain wheel, the bucket tilts and the material in the bucket drops into the material discharging means arranged in the casing, and is almost discharged when the bucket reaches the top of the chain wheel. Will be completed.

As described above, according to the bucket elevator of the present invention, since the centrifugal force is not used for discharging the material, the speed of the bucket can be slowed down, and since the guide by the back of the bucket is not used, the depth of the bucket can be reduced. Can be made shallower. When the depth of the bucket is reduced, the material can be easily discharged from the bucket, the material is less likely to be deposited and deposited inside the bucket, and the material can be suitable for conveying the adhesive material.

[0009]

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

As shown in FIGS. 1 and 2, a bucket elevator 1 has a pair of upper chain wheels 3, which are opposed to the upper part of a casing 2 in parallel to the left and right at a predetermined interval.
3'is provided, and a pair of lower chain wheels 4, 4'which are parallel to each other and are opposed to each other at a predetermined interval are also provided in the lower part of the casing 2. The upper chain wheel 3, 3'and the lower part Endless chains 5, 5'are wound around the chain wheels 4, 4 '.

As shown in FIG. 2, a large number of buckets 6 are mounted at predetermined intervals between the chains 5 and 5 ', and the buckets 6 are provided with a material inlet 7 at the bottom of the casing 2.
It is attached so as to scoop up the introduced material and to drop the material into the casing 2 from between the left and right chains 5 and 5 ′ when swirling in the upper part of the casing 2.

The bucket 6 above the casing 2
A material discharging means for receiving the falling material and discharging it to the outside of the casing 2 is disposed at a position where the material falls from the casing. As the material discharging means, as shown in FIG. A receiving hopper 8 is faced to a point, and a belt conveyor 9 having an end portion penetrating a side wall of the casing 2 and protruding to the outside is disposed below the receiving hopper 8.
If a discharging means such as the belt conveyor 9 is adopted, the material can be conveyed to an arbitrary height position.

The material input port 7 at the bottom of the casing 2
If more material is added, the material is scooped up by the traveling bucket 6 and lifted up, and the bucket 6 is moved to the upper chain wheel 3, 3 ′ above the casing 2.
When the bucket 6 reaches the position and starts to turn along the outer peripheral portions of the upper chain wheels 3 and 3 ′, the bucket 6 also starts to tilt and the material inside the bucket begins to drop in the casing 2. The falling material is received by the receiving hopper 8 arranged in the upper part of the casing 2, transferred by the belt conveyor 9 and guided to the outside.

FIG. 3 shows another material discharging means, in which the receiving hopper 8 is made to face the material dropping point on the upper part of the casing 2 and the material discharging chute 10 is connected to the receiving hopper 8. . The lower end of the material discharge chute 10 penetrates the side wall of the casing 2 and projects to the outside, and the material received by the receiving hopper 8 on the upper part of the casing 2 is slid on the chute 10 to be guided to the outside.

As described above, the material discharging means can be variously considered in addition to the above example, and it is preferable to select an appropriate method depending on the installation location of the bucket elevator, the material to be conveyed, and the like.

Further, FIG. 4 shows another embodiment of the bucket elevator, and the upper chain wheels 11, 11 '.
Is shown as a plurality of pairs, and the bucket 6 travels horizontally above the casing 2. In addition to this, various arrangement examples of the chain wheels 11 and 11 'are conceivable. In addition, although an example in which two bucket mounting chains are adopted is shown in the embodiment, one chain may be adopted in a bucket elevator having a small carrying capacity, and in this case, when the material is discharged from the bucket. It is advisable to take appropriate measures such as devising the chain so that it does not come into direct contact with the chain or mounting buckets on both sides of the chain.

As described above, in the bucket elevator of the present invention, since the centrifugal force is not used for discharging the material, the speed of the bucket can be slowed down, and the induction of the material by the back of the bucket is not used. There is no restriction on the shape, and it is possible to make the depth of the bucket shallow. Therefore, by making the depth of the bucket shallow, it is possible to easily discharge the material from the bucket, and it is possible to make the material suitable for conveying the adhesive material.

Further, unlike the conventional bucket elevator, there is no material induction by the back of the bucket, and wear of the drive part and the bucket can be reduced by reducing the speed.

Further, unlike the conventional bucket elevator, the bucket elevator of the present invention can discharge the material in the direction orthogonal to the material feeding direction, and therefore, in some cases, it can be conveniently used in terms of the arrangement of the apparatus.

The bucket elevator according to the present invention can be made suitable for conveying the adhesive material by making the depth of the bucket shallow, but the present invention is not limited to this.
It goes without saying that the bucket may be deepened to convey the material, and in this case, the bucket can be made at a low speed, which is advantageous in terms of the wear surface of the drive unit and the like and the apparatus arrangement surface.

[0021]

As described above, in the bucket elevator according to the present invention, the bucket mounted on the endless chain is mounted so that the material is dropped into the casing when the casing is turned over, and the bucket is installed inside the casing. Since the material discharging means for receiving the material dropped from the bucket and guiding it to the outside of the casing is arranged, it is possible to reduce the depth of the bucket without being restricted by the shape of the bucket, and the adhesive material. Can also be suitable for carrying. In addition, the speed can be made lower than that of the centrifugal discharge type bucket elevator, the wear of the drive unit can be reduced, and the back surface of the bucket is not worn unlike the induction discharge type bucket elevator. Also has some great points.

[Brief description of drawings]

FIG. 1 is a schematic front view showing a vertical section of an embodiment of a bucket elevator according to the present invention.

FIG. 2 is a perspective view in which a main part of FIG. 1 is partially cut away.

FIG. 3 is a perspective view corresponding to FIG. 2 showing another embodiment of the material discharging means.

FIG. 4 is an explanatory diagram showing a main part of another embodiment of the bucket elevator according to the present invention.

[Explanation of symbols]

1 ... Bucket elevator 2 ... Casing 3, 3 '... Upper chain wheel 4, 4' ... Lower chain wheel 5, 5 '... Chain 6 ... Bucket 7 ... Material input port 8 ... Receiving hopper (Material discharging means) 9 ... Belt conveyor (Material discharging means) 10 ... Material discharging chute (material discharging means)

Claims (1)

[Claims] 1. A chain wheel is arranged at both upper and lower ends in a casing having a material discharge chute at the upper part and a material input port at the lower part, and an endless chain is wound between the chain wheels. In a bucket elevator in which a large number of transporting buckets are mounted at predetermined intervals, the buckets mounted on the chain are mounted so that the material is dropped into the casing when the casing is turned, and the bucket is dropped into the casing from the buckets. A bucket elevator, comprising a material discharging means for receiving the material and guiding it to the outside of the casing.