KR101203641B1

KR101203641B1 - Return-roller for belt-conveyer

Info

Publication number: KR101203641B1
Application number: KR20100133288A
Authority: KR
Inventors: 지영찬
Original assignee: 주식회사 포스코
Priority date: 2010-12-23
Filing date: 2010-12-23
Publication date: 2012-11-23
Also published as: KR20120071656A

Abstract

A bearing housing 100 having an installation groove formed therein and having a bearing 300 built in the installation groove; A lubricating oil supply unit 500 installed outside the bearing housing 100 and connected to an installation groove to supply lubricating oil of the bearing to the installation groove; A roller shaft (S) through which one end passes through the bearing (300); A roller body 600 having a diameter larger than the roller shaft S and provided to surround the outer circumferential surface of the roller shaft S; And a ring-shaped gap maintaining part 620 provided between the roller shaft S and the roller body 600 to maintain the roller shaft S and the roller body 600 at a predetermined interval. Return rollers are introduced.

Description

Belt conveyor return roller {RETURN-ROLLER FOR BELT-CONVEYER}

The present invention relates to a belt conveyor return roller for changing the direction of entry of the belt in the belt conveyor provided to transport the ore for charging the furnace of the furnace.

The belts of the conveyor are designed to have a certain length, width, speed and transport capacity to carry the ore for charging the furnace. These belt conveyors have a section that is kept in a horizontal state because the moving distance from the remote site to the destination is considerable, but in some cases, there is a section that rises or falls.

In this way, the weight of the belt is maintained by attaching a weight so that the tension of the belt can be maintained in the descending section. However, in such a part, the load of the fracture part of the belt due to excessive inclination angle is increased, and the return roller of the fracture part is often burned out. When the return roller is damaged in this way, it takes a lot of time due to the replacement of the roller, which delays the charging work and inevitably causes damage in the process.

In addition, since the replacement work space of the return roller is narrow, it takes more and more replacement time, and the cost of replacement is also consumed. In addition, iron ore transport volume is increased due to high efficiency production, and the number of times of wear and breakage of the heavy-load retung roller is increased. There is a situation.

Therefore, it is urgent to develop a return roller that can withstand the durability of the roller even if a long load is applied. Particularly, in case of the return roller, breakage of the roller bearing part occurs frequently when high load is applied, and thus, a structure of the return roller that can solve the problem is necessary.

The matters described as the background art are only for the purpose of enhancing the understanding of the background of the present invention, and should not be taken as acknowledging that they correspond to the related arts already known to those skilled in the art.

The present invention has been proposed to solve this problem, and an object of the present invention is to provide a return roller of a belt conveyor that can withstand the bearing durability of the roller even if a high load acts for a long time.

The return roller of the belt conveyor according to the present invention for achieving the above object, the bearing housing is formed in the inner groove and the bearing is built in the mounting groove; A lubricating oil supply unit installed outside the bearing housing and connected to an installation groove to supply bearing lubricating oil to the installation groove; A roller shaft having one end penetrating the bearing; A roller body having a diameter larger than that of the roller shaft and provided to surround an outer circumferential surface of the roller shaft; And a ring-shaped gap maintaining part provided between the roller shaft and the end of the roller body to maintain the roller shaft and the roller body at a predetermined interval.

The bearing has a shape in which the center portion protrudes, and the installation groove of the bearing housing is formed to match the outer circumferential surface of the bearing, and a feeding groove connected to the lubricating oil feeding portion may be formed at a portion to which the lubricating oil feeding portion is connected. .

The feeding groove is formed to extend from the center of one end of the installation groove, one end of the protruding center portion of the bearing may be immersed in the feeding groove.

The bearing housing is composed of an upper housing and a lower housing, the installation groove of the lower housing may extend downward to be connected to the lubricating oil supply unit.

Both side ends of the bearing housing may be provided with a flow path for supplying lubricating oil to a portion in close contact with the roller shaft.

The roller shaft is formed so as to decrease in diameter step by step toward the end is composed of the first end, the second end and the central portion from the outermost, the inner diameter of the bearing housing and the bearing coincides with the outer diameter of the first end and the inner diameter of the gap retaining portion Is coincided with the outer diameter of the second end to prevent flow.

In addition, the return roller of the belt conveyor may further include a rubber coating provided to surround the outer surface of the roller body.

According to the return roller of the belt conveyor having a structure as described above, it is easy to increase the strength in the design of the bearing because the bearing of the roller is located outside the roller body.

In addition, by locating the bearing on the outside, it is possible to automatically feed the lubricating oil, whereby the burnout of the bearing is significantly reduced.

In addition, by forming a rubber coating film on the outer surface of the roller body to reduce the surface damage of the roller, it is possible to replace the bearing easily because the bearing is located outside.

1 is a cross-sectional view of the return roller of the belt conveyor according to an embodiment of the present invention.
2 is a detailed cross-sectional view of the return roller of the belt conveyor shown in FIG.

Hereinafter, with reference to the accompanying drawings looks at with respect to the return roller of the belt conveyor according to an embodiment of the present invention.

1 is a cross-sectional view of the return roller of the belt conveyor according to an embodiment of the present invention, Figure 2 is a detailed cross-sectional view of the return roller of the belt conveyor shown in FIG.

The return roller of the belt conveyor according to an embodiment of the present invention, the bearing housing 100 is formed with an installation groove on the inside and the bearing 300 is built in the installation groove; A lubricating oil supply unit 500 installed outside the bearing housing 100 and connected to an installation groove to supply lubricating oil of the bearing to the installation groove; A roller shaft (S) through which one end passes through the bearing (300); A roller body 600 having a diameter larger than the roller shaft S and provided to surround the outer circumferential surface of the roller shaft S; And a ring-shaped gap maintaining part 620 provided between the roller shaft S and the roller body 600 to maintain the roller shaft S and the roller body 600 at a predetermined interval.

The return roller of the belt conveyor as described above largely maintains a constant distance between the roller body 600, the roller shaft S penetrating the interior of the roller body 600, and the roller body 600 and the roller shaft S. A ring-shaped gap maintaining part 620 is included. As shown in the gap holding part 620, the outer circumferential surface may be fixed to the roller body 600 by welding, and the inner circumferential surface may be fixed to the roller shaft S by welding. In addition, the rubber coating 800 may be provided to cover the outer surface of the roller body 600, the rubber coating 800 may be located on the roller with a strip or mineral with a folding force, the roller body 600 By protecting the surface of the roller can maintain the durability.

On the other hand, the roller shaft (S) is penetrated through the roller body 600, both ends are coupled to the bearing 300 of the bearing housing 100. The bearing 300 is present in a built-in form in the bearing housing 100, so that the durability can be improved more than when the bearing is built in the roller body as in the prior art. If the bearing is embedded in the roller body, the size of the bearing must be fixed due to the design of the roller, and there is not enough space for securing the durability of the bearing. Because it can only be burned.

According to the present invention, the installation grooves 122 and 142 are formed in the bearing housing 100 fixed to both sides, and the installation grooves 122 and 142 are formed so as to be in contact with the outer surface of the bearing 300, so that the bearing 300 ) Can be stably maintained inside the installation grooves 122 and 142.

In addition, the outside of the bearing housing 100 is provided with a lubricating oil supply unit 500, the feeder of the lubricating oil supply unit 500 is connected to the installation groove 122 of the bearing housing 100 automatically bearing the housing (100) By lubricating oil is fed into the inner side of the bearing 300 to prevent damage.

Lubricant is injected into the installation grooves 122 and 142 of the bearing housing 100 to be continuously present in the gap between the bearing 300 and the installation grooves 122 and 142, and may be partially leaked. By automatically supplying lubricating oil through the lubricating oil supply unit 500, the durability of the bearing 300 is significantly improved compared to the conventional roller.

On the other hand, the bearing 300 has a shape in which the central portion 320 is protruded, the installation groove of the bearing housing 100 is formed to match the shape of the outer peripheral surface of the bearing, the installation groove in the portion where the lubricating oil supply unit 500 is connected Feeding grooves extending from the connected to the lubricating oil feeding portion may be formed.

In addition, the paper feeding groove may be formed to extend from the center of one end of the installation groove 122, so that one end of the protruding center portion 320 of the bearing 300 is immersed in the paper feeding groove.

As shown in FIG. 2, the bearing 300 has a shape in which the center portion protrudes, and the installation grooves 122 and 142 are formed in a shape corresponding thereto, so that the bearing 300 can stably roller in the bearing housing 100. To support and maintain the shaft (S). Bearing 300 of such a shape is a structure that is also resistant to the load and impact transmitted from the roller shaft (S), it is a shape that can not be designed in the conventional roller.

One side of the installation groove is formed with a feed groove extending from the installation groove 122, so that the lubricating oil can be injected from the lubricating oil supply unit 500 through the feed groove. In addition, the protruding central portion 320 of the bearing 300 is configured to be immersed in such a feeding groove so that all of the lubricating oil can be evenly applied throughout the bearing 300.

On the other hand, the bearing housing 100 is composed of the upper housing 140 and the lower housing 120, the installation groove 122 of the lower housing 120 is extended downward so that the lubricating oil supply unit 500 is connected. By configuring the bearing housing 100 as the upper housing 140 and the lower housing 120, it is possible to easily check or replace the bearing 300, the roller shaft (S), the upper housing 140 and the lower housing 120 Each of the installation grooves 122 and 142 may be formed in each of the installation grooves 122 of the lower housing 120 to be connected to the lubricating oil supply unit 500 so that the lubricating oil may be supplied from below the bearing 300. . In this case, the lubricating oil buried in the bearing 300 can be stored continuously in the installation groove 122 of the lower housing 120 rather than flowing out due to its nature to descend downward by its own weight.

In addition, flow paths 124, 126, 144, and 146 may be formed at both side ends of the bearing housing 100 to supply lubricating oil to a portion in close contact with the roller shaft S. The bearing 300 has a form embedded in the bearing housing 100, whereby a portion in which the bearing housing 100 and the roller shaft S directly contact each other is generated. Therefore, in order to supply the lubricating oil in this part, as shown in the figure, the flow paths 124, 126, 144 and 146 are supplied to the parts of the bearing housing 100 which are in close contact with the roller shaft S so as to continuously maintain in the flow paths 124, 126, 144 and 146. By allowing the lubricating oil to be built in, the stable operation of the roller shaft S is possible.

In addition, the roller shaft (S) is formed so that the diameter is gradually reduced toward the end is composed of the first end (S1), the second end (S2) and the central portion (S3) from the outermost, the housing housing (100) And the inner diameter of the bearing 300 is matched with the outer diameter of the first end (S1) and the inner diameter of the gap retaining portion 620 is matched with the outer diameter of the second end (S2) to prevent flow.

As shown in FIG. 2, the bearing housing 100 is coupled to the first end S1 of the roller shaft S, and thus cannot be crossed to the second end S2. In addition, the gap maintaining part 620 is coupled to the second end S2 of the roller shaft S and takes a structure not to be crossed to the central part S3. Therefore, even if eccentricity acts on the rollers or other abnormal conditions occur, the position of the roller is always fixed through such a locking structure, thereby preventing damages or safety accidents of other equipment.

As described above, according to the return roller of the belt conveyor of the present invention, it is easy to increase the strength in the design of the bearing because the bearing of the roller is located outside the roller body. In addition, by locating the bearing on the outside, it is possible to automatically feed the lubricating oil, whereby the burnout of the bearing is significantly reduced.

In addition, by forming a rubber coating film on the outer surface of the roller body to reduce the surface damage of the roller, the bearing is located on the outside can be replaced easily, the diameter of the roller shaft to increase step by step to each configuration and locking structure The defect prevents the flow of the roller and prevents various accidents.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

100: roller housing 120: lower housing
122: mounting groove 140: upper housing
142: mounting groove 300: bearing
320: center portion of the bearing S: roller shaft
600: roller body 620: gap holding part
800: rubber coating

Claims

A bearing housing 100 having an installation groove formed therein and having a bearing 300 built in the installation groove;
A lubricating oil supply unit 500 installed outside the bearing housing 100 and connected to an installation groove to supply lubricating oil of the bearing to the installation groove;
A roller shaft (S) through which one end passes through the bearing (300);
A roller body 600 having a diameter larger than the roller shaft S and provided to surround the outer circumferential surface of the roller shaft S; And
And a ring-shaped gap maintaining part 620 provided between the roller shaft S and the roller body 600 to maintain the roller shaft S and the roller body 600 at a predetermined interval.
The roller shaft (S) is formed so that the diameter gradually decreases toward the end is composed of the first end (S1), the second end (S2) and the center (S3) from the outermost, bearing housing 100 and bearing The inner diameter of the 300 is matched with the outer diameter of the first end (S1) and the inner diameter of the gap retaining portion 620 is matched with the outer diameter of the second end (S2) of the belt conveyor, characterized in that the flow is prevented. .

The method according to claim 1,
The bearing 300 has a shape in which the central part 320 protrudes, and the installation groove of the bearing housing 100 is formed to match the outer circumferential surface of the bearing, and extends from the installation groove in a portion where the lubricating oil supply part 500 is connected. The return roller of the belt conveyor, characterized in that the feed groove is connected to the lubricating oil supply unit.

The method according to claim 2,
The feeding groove is formed to extend from the center of one end of the installation groove, the return roller of the belt conveyor, characterized in that one end of the protruding center portion 320 of the bearing is immersed in the feeding groove.

The method according to claim 1,
The bearing housing 100 is composed of an upper housing 140 and a lower housing 120, the installation groove 122 of the lower housing 120 is extended to the lower belt characterized in that the lubricating oil supply unit 500 is connected Return roller of the conveyor.

The method according to claim 1,
Both side ends of the bearing housing 100, the return roller of the belt conveyor, characterized in that the flow paths (124, 126, 144, 146) is supplied to the lubricating oil is in close contact with the roller shaft (S).

delete

The method according to claim 1,
A rubber roller (800) provided to cover the outer surface of the roller body 600; a return roller of the belt conveyor, characterized in that it further comprises.