KR0128258Y1 - Screen-close preventing apparatus of drum type sand separator - Google Patents

Abstract

The present invention relates to a screen closure preventing device of the drum type sand separator.

Conventional screen closure preventive device is to rotate the brush and the shaft integrally easy to wear the brush, there was a problem difficult to replace the present invention is devised for the purpose of solving such a problem.

The present invention constitutes the screen closing prevention device of the drum type sand separator to prevent the closing of the screen 1a by a brush which is pivotally rotated by the driving force of the drum body 1, the side of the drum body 1 It is characterized in that it is composed of a shaft (3) which is installed in the bearing (2) and is separated from the shaft and inserted into the brush (4) to be rotated about the shaft.

By the above configuration, the shaft and the brush can be rotated independently of each other to significantly reduce the wear of the brush due to the rotational resistance, and the brush can be easily replaced.

Description

Screen closure prevention device of drum type sand separator

1 is a plan view of a sand separator to which the apparatus is applied.

2 is a side cross-sectional view of FIG.

3 is a combined configuration of the present invention.

Figure 4 is a cross-sectional view of the configuration of the brush in the present invention.

5 and 6 show another embodiment of the brush.

7 is a state of coupling of the brush according to FIG.

8 is a perspective view of the brush of FIG.

* Explanation of symbols for main parts of the drawings

1: drum body 1a: screen

2: bearing 3: shaft

4: brush 4a: torso

4b: brush bristle 4c: shaft insertion hole

4d, 4d ': pores 4e: cylinder

4f: fastener

The present invention relates to a screen closure preventing device of a drum type sand separator, and more particularly, to a screen closing device for removing the fine dust or earthen jammed on the screen of the drum while being passively rotated in contact with the drum body. The shaft is supported by the bearing and can be rotated, and the cylindrical brush can be freely rotated about the shaft while being inserted into the shaft to significantly improve the wear rate of the brush and to reduce the costs associated with replacement and replacement. It's about one thing.

The drum type sand separator is a device that allows the aggregate injected into the hopper to pass through the cylindrical drum body having the screen of large and small size and separates it according to the size of the aggregate. As the groundbreaker closes the screen, a preventive measure is required.

As a countermeasure for screen closure that has been proposed in the prior art, an impact device of a sand separator as proposed by Korean Utility Publication No. 93-7047 has been proposed. This is based on the principle of the cam and hits the drum body intermittently with the striking rod. It was supposed to shake off the jammed soil, but had a very useful effect, but had a problem of causing noise and damage of the drum body due to the impact.

On the other hand, the Korean Utility Model Publication No. 91-17932 and Japanese Laid-Open Utility Model Publication No. 61-191178 provide a device for preventing the closing of the screen, which is to be driven by the driving force of the drum on the side of the drum body It is not only solved the noise problem, but it is also evaluated to show the effect of high drilling efficiency of the screen. And there was a problem that the cost of exchange is high.

That is, in the process of passively rotating the brush in contact with the drum body, rotational resistance is generated in the bearing portion supporting both ends of the rotating shaft of the brush, which hinders the driven rotation of the brush and the brush hair slides on the screen by the resistance thereof. As the wear caused by friction is very high and fine thread or foreign matter is introduced into the bearing during the selection, the frictional resistance against rotation is increased, and the wear of the brush is rapidly promoted. Should have had a problem that the replacement cost is consumed a lot.

Due to such a problem, the life of the brush according to the conventional method in the normal operation state of the sand separator does not exceed 1 month, and the cost of replacement is excessively used in spite of the useful effect, but the situation is not widely spread.

The present invention improves the screen closing device using the conventional driven rotary brush to significantly improve the wear of the brush, to facilitate the replacement of the brush, to reduce the cost of replacement, furthermore to prevent screen closure of the sand separator It is designed to present a new brush that is very useful and easy to manufacture.

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are for showing the installation state of the screen closure preventing device according to the present invention, the present invention integrally with the shaft (3) to contact the outer surface of the cylindrical drum body (1) constituting the sand separator The combined brush 4 is installed, and both ends of the brush shaft 3 are supported by the bearing 2 so that the brushes in contact with the drum body are rotated passively as the drum body rotates to close the eyes of the screen 1a. In the screen closing device of the drum type sand separator configured to shake off the clogging soil, the shaft (3) and the brush (4) are separately formed, and the length of the brush (4) is shortened so that several pieces are placed on the shaft. Are inserted into the independent state, each of the brush (4) is formed in the center of the body (1a) shaft insertion hole (4c) is formed to a size larger than the outer diameter of the shaft (3) each brush (4) Can rotate freely about the axis The rotation of the brush about the axis and the rotation axis of the bearing during the driven rotation of the lock configuration by the brush (4) is one to occur at the same time.

Brush 4 is composed of a cylindrical body (4a) and a brush bristles (4b) that is planted in the body, the material of the body to have a self-lubrication in contact with the shaft using a plastic or wood, brush bristle (4b) uses plastic of strong and tough material.

The shaft insertion hole 4c inside the brush body 4a is slightly larger than the diameter of the shaft so that the shaft can be freely inserted in the shaft so that the brush can rotate freely with respect to the shaft.

3 is to show the rotational state of the shaft, brush and drum body. When the sorting process is progressed and the drum body rotates, the brush hair is engaged with the screen by the rotational force and rotates to shake off impurities, soil, and fine sand stuck on the screen The sorting work is done.

At this time, the rotational resistance of the brush, which is the biggest wear factor of the brush, is generated. When the shaft and the brush are integrally formed as in the related art, only the bearing plays a role of reducing the rotational resistance, and thus the sliding between the screen and the brush is actively performed. In addition, the abrasion of the brush head and the screen is promoted. However, in the configuration in which the shaft and the brush are separated as in the present invention, the rotational resistance is reduced in the shaft and the brush body as well as the bearing supporting the shaft, thereby enabling a very smooth rotation. In other words, the rotation of the brush is divided into several brushes over the entire length of the shaft, so even if a load is applied to some brushes, the rotation of other brushes does not affect the brush wear rate.

In other words, when a load that impedes the driven rotation of the brush is applied to the bearing, the brush body in contact with the shaft rotates about the shaft, and when the load is applied to the contact portion of the brush body and the shaft, the shaft rotates. As a result, the resistance due to the driven rotation of the brush is remarkably reduced, so that there is almost no sliding at the contact between the screen and the brush hair, and the brush hair naturally rotates as it penetrates the screen eye, thereby significantly reducing the wear of the brush and the screen. do.

In addition, since each brush is rotated independently, the load on some brushes does not affect other brushes, and if only some brushes wear, the brush replacement cost can be significantly reduced by replacing only the brushes. Will be.

Meanwhile, in constructing the brush, the stone part of the brush head may be configured to plant the brush hair after drilling the pores in the body as in the conventional brush, but in the case of the brush used in the sand separator, the brush hair continuously contacts the screen. Brush hair falls out, and because of the strength and elasticity of the plastic using a strong material mock planting work has a very difficult problem.

The present invention also proposes a brush as shown in FIGS. 4 to 8 to solve this problem.

The brush shown in FIG. 4 is configured to form pores 4d at regular intervals so as to penetrate the inside and outside surfaces of the cylindrical body 1a, and the brush bristles 4b are fixed by V-shape using two adjacent pores. The brush shown in FIG. 5 is configured to form V-shaped pores 4d 'on the surface of the trunk 1a and to fix the brush bristles 4b therein.

The brushes shown in FIGS. 6 to 8 separate longitudinally the trunk 4a of the brush into a half-moon shape, and puncture the pores 4d so as to penetrate the inner and outer surfaces of each of the brushes. ) Is attached to a half moon body with a cylinder 4e having an outer diameter of the same size as the inner diameter of the body 4a in the state where it is fixed in a V shape, and then fixed to both ends of the body with a fastener 4f. It is.

In the above method of fixing the brush hair to the pores, in the case of FIG. The brush shown in FIG. 5 is fixed by attaching one side of the brush hair to one side of the pores, protruding to the other side of the pores, and then injecting an adhesive into the pores.

With this configuration, the middle part of the brush hair is fixed to the body by the pores and both ends protrude outward, so there is no fear that the brush hair will be detached from the pores, and even if it is not easily bent by the elasticity of the parent body, Because it is bent more easily bent because the planting work is made, there is an advantage of easy manufacturing of the brush.

Brush according to FIG. 4 has the advantage of relatively easy puncturing of pores and insertion of brush hairs, but there is a disadvantage that hair roots are damaged by friction with the shaft because the hair roots are exposed to the inside of the body. The brush has a disadvantage that it is difficult to perforate the pores and insert the mock because the perforations of both pores are obliquely inclined to meet inside the cross section of the trunk when forming the pores. It has the advantage that tampering is prevented.

On the other hand, the brushes shown in FIGS. 6 to 8 are separated by two bodies, so that pores and insertion of pores are very easy, and relatively long length brushes can be made, and the assembly and disassembly are made by the binding holes. The replacement of the brush has a very easy effect.

In the drawings, reference numeral 5 denotes a sand separator frame, 6 denotes a sand outlet selected by size, 8 denotes an aggregate hopper, and 9 denotes a chain for rotating the drum.

As described above, the present invention has an excellent effect of preventing the screen from being closed by fine sand or soil, and minimizes friction caused by sliding between the screen and the brush. The service life can be significantly extended, and worn brushes can be easily replaced, and the cost of replacement can be significantly reduced by replacing only the brushes themselves and selecting and replacing only the brushes that have undergone much wear.

Claims (4)

A brush 4 integrally coupled with the shaft 3 is installed to contact the outer surface of the cylindrical drum body 1 constituting the sand separator, and both ends of the brush shaft 3 are supported by the bearing 2. In the screen closing device of the drum-type sand separator having a configuration such that the brush in contact with the drum body is rotated passively as the drum body rotates to shake off the soil that covers the eyes of the screen 1a. ) And the brush 4 are separated, and the length of the brush 4 is shortened so that a plurality of brushes can be inserted in an independent state on the axis, and the shaft is formed at the center of the body of each brush 4. The insertion hole 4c is formed to have a size larger than the outer diameter of the shaft 3 so that each brush 4 can freely rotate about the shaft so that the shaft of the shaft by the bearing 2 during the driven rotation of the brush 4 can be rotated. Rotation and rotation of the brush (4) relative to the axis (3) At the same time by closing the screen to occur preventing the drum type sand separator, characterized in that to prevent the abrasion of the brush devices. According to claim 1, the brush 4 forms pores 4d at regular intervals to penetrate the inside and outside surfaces of the cylindrical body 1a, and the brush bristles 4b are V-shaped by using two adjacent pores. Screen closure prevention device of the drum type sand separator, characterized in that the fixed configuration. 3. The drum (4) according to claim 1, wherein the brush (4) has a configuration in which the V-shaped pores (4d ') are formed in the surface portion of the trunk (1a) and the brush bristles (4b) are closed and fixed thereto. Screen closure prevention device of sand separator. The brush (4) according to claim 1, wherein the brush (4) separates the trunk (4a) in a longitudinal direction so as to be a half moon shape, and each of the trunks punctures the pores (4d) to penetrate the inner and outer surfaces, and the brush brim (4b) is attached thereto. And a half moon body attached to a cylinder 4e having an outer diameter of the same size as the inner diameter of the body 4a in a state in which the cavities were fixed in the shape, and then fixing both ends of the body with fasteners 4f. Screen closing prevention device of drum type sand separator.