JPH04277136A - Bucket wheel - Google Patents

Abstract

PURPOSE:To prevent the bulk cargo from overflowing due to a large clearance of a bucket wheel, and to prevent the bulk cargo from being bitten between a stator liner 8 and a bucket 4. CONSTITUTION:A flapper 1, which blocks the bulk cargo discharge port of a bucket 4, and a stator liner 8, which pushes up the flapper 1 from behind, are attached to a bucket wheel 2. When the bulk cargo 3 is discharged without being overflowing beyond the bucket 4, the flapper 1 opens to be discharged the cargo without hindrance.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bucket wheel for scraping off bulk materials such as a reclaimer that handles bulk materials such as coal and iron ore.

0002

[Prior Art] About the bucket wheel of a conventional reclaimer for scraping off coal, iron ore, etc.
It is described in the figure of JP-151443. This is shown in FIGS. 5 and 6. FIG. 5 is a front sectional view of a conventional bucket wheel. FIG. 6 is a vertical side view of a conventional bucket wheel. The bucket 4, which rotates together with the bucket wheel 2, scrapes the iron ore or other material downward, scoops it upward, and discharges it into the chute 69 in the direction of the arrow 67. At this time, before the bucket 4 reaches the top of the chute 69, the iron ore or other material in the bucket 4 overflows from the bucket 4 in the direction of the arrow 7. This overflowing of iron ore, etc., is suppressed by stator liner 8, etc.

0003

[Problems to be Solved by the Invention] However, with conventional bucket wheels, the gap is large and iron ore, etc., often overflows, and also gets caught between the stator liner and the bucket, leading to accidents. There are some things. This invention was made in view of the above circumstances, and it is possible to prevent the iron ore from getting caught between the stator liner and the bucket, and to prevent the iron ore from falling from between the stator liner and the bucket attachment outer ring. The purpose of the present invention is to provide a bucket wheel that can prevent this.

0004

[Means for Solving the Problems] A bucket wheel according to the present invention is a bucket wheel for scraping off scattered materials, and includes a flapper that is rotatably attached to a bucket attachment outer ring and that closes a scattered materials discharge port of the bucket. It is characterized by comprising a stator liner forming an arc shape and pushing up the flapper from behind.

[0005]

[Function] In the bucket wheel according to the present invention, the flapper closes the material discharge port of the bucket at a position other than the chute portion, so the material does not overflow from the bucket, and the material is not scattered at the chute portion. When the load is discharged, the flapper is open, so the load can be discharged without any problem.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A bucket wheel of a reclaimer according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a vertical side view of a bucket wheel of a reclaimer according to an embodiment of the present invention. In the figure, 1 is a flapper according to the present invention. 2 is a bucket wheel. 3 is iron ore. 4 is a bucket. 5 is a boom conveyor. 6 is an arrow indicating the direction in which the iron ore 3 is transported by the boom conveyor 5. 7 is an arrow indicating the direction in which the iron ore 3 scraped and lifted by the bucket 4 is discharged in the chute 9. 8 is a stator liner. 21 is a bucket attachment outer ring. 22 is a rotation axis of the flapper 1. 10 is an arrow indicating the direction in which the bucket 4 and the bucket attachment outer ring 21 rotate together with the flapper 1. The bucket 4 scrapes off the iron ore 3 while rotating, lifts it up, places it on a chute 9, and discharges it into the chute 9. The flapper 1 opens downward on the chute 9 and does not prevent the iron ore 3 from being discharged. After the flapper 1 passes over the chute 9, it is pushed up again by the stator liner 8. The chute 9 and the stator liner 8 are provided inside the bucket wheel 2 and do not rotate. The flapper 1 is rotated while rubbing the surface of the stator liner 8 while being pushed up toward the outer circumferential direction of the bucket wheel by the stator liner 8 and covering the inner circumferential surface of the bucket wheel of the bucket 4. Since the flapper 1 covers the inner circumferential surface of the bucket wheel, the iron ore 3 does not come into direct contact with the stator liner 8, so that an accident in which the iron ore 3 gets caught does not occur. Furthermore, it is possible to completely prevent the iron ore 3 from falling from between the stator liner 8 and the bucket attachment outer ring 21.

FIG. 2 is a vertical side view showing details of the bucket of the present invention. It is shown that the flapper 1 is pushed up by the stator liner 8 in the direction of the outer circumference of the bucket wheel and completely covers the inner circumferential surface of the bucket wheel of the bucket 4. It is also completely prevented that the iron ore 3 falls from between the stator liner 8 and the bucket attachment outer ring 21. Although the stator liner 8 is stationary, the flapper 1 and the bucket 4 are rotating in the direction of the arrow 23 together with the bucket attachment outer ring 21.

FIG. 3 is a vertical side view showing in detail the situation when the bucket of the present invention is passing over the chute 9. The flapper 1 rotating together with the bucket attachment outer ring 21 opens downward under its own weight when it approaches the chute 9 where the stator liner 8 is interrupted, and the iron ore 3 is discharged in the direction of the arrow 7.

FIG. 4 is a vertical front view showing in detail the situation when the bucket of the present invention is passing over the chute. The flapper 1 is attached to the bucket attachment outer ring 2 via a rotation shaft 22.
It is pivoted to 1. While passing over the chute 9, the stator liner is interrupted, so the flapper 1 opens downward due to its own weight, and the iron ore is discharged in the direction of the arrow 7 and falls into the chute 9.

[0010] As described above, in this invention, since the flapper covers the discharge port of the bucket, iron ore does not come into direct contact with the stator liner. As a result, iron ore jamming accidents will not occur. Furthermore, it is possible to completely prevent iron ore from falling from between the stator liner and the bucket attachment outer ring.

Furthermore, when the flapper reaches the top of the chute, the stator liner breaks off and opens downward under its own weight, allowing the iron ore to be discharged without any hindrance.

0012

[Effects of the Invention] This invention prevents iron ore from falling from between the stator liner and the bucket attachment outer ring and overflowing outside the chute, and also prevents the iron ore from getting caught in the stator liner, so that the reclaimer Efficiency and operation rate have improved.

[Brief explanation of the drawing]

FIG. 1 is a vertical side view of a bucket wheel according to one embodiment of the present invention.

FIG. 2 is a vertical side view of a bucket according to one embodiment of the present invention.

FIG. 3 is a vertical side view of a bucket according to one embodiment of the present invention.

FIG. 4 is a vertical front view of a bucket according to one embodiment of the present invention.

FIG. 5 is a front sectional view of a conventional bucket wheel.

FIG. 6 is a vertical side view of a conventional bucket wheel.

[Explanation of symbols]

1 Flapper 2 Bucket wheel 3 Iron ore 4 Bucket 5 Boom conveyor 6 Arrow 7 indicating the conveyance direction of the boom conveyor
Arrow 8 indicating the direction in which iron ore is discharged Stator liner 9 Chute 10 Arrow 21 indicating the rotation direction of the bucket attachment outer ring 22 Rotation shaft 23 Arrow 67 indicating the rotation direction of the bucket attachment outer ring Arrow 69 showing the direction of discharge into the chute Chute

Claims (1)

[Claims] 1. A bucket wheel comprising a plurality of buckets attached to a rotating outer ring and a stator liner fixedly provided inside the bucket wheel, wherein the bucket wheel is rotatably attached to a material discharge port of each of the buckets. 1. A bucket wheel comprising: a flapper with a raised flap; and a ring-shaped stator liner with a chute portion, the flapper being open above the chute portion.