KR20140060396A - Pressure rollers with transfer apparatus - Google Patents

Abstract

The present invention relates to a transferring apparatus comprising a guide roller part on a belt for transferring raw materials to be vertically moved; and a pressing part connected to the guide roller part to control power for pressing the guide roller according to changes in the tension of the belt.

Description

{PRESSURE ROLLERS WITH TRANSFER APPARATUS}

The present invention relates to a conveying apparatus, and more particularly, to a conveying apparatus having a guide roller in which the operation of the belt is stably performed during operation of the conveying apparatus.

The raw materials such as ore, coal, coke, etc. are unloaded through the unloading machine and then transported to the yard of the steel mill through the transfer device. The raw materials such as the particle size, specific gravity, BACKLASH phenomenon easily occurs in the conveying device of the lower line which is loaded or dropped through the chute according to the condition or the operating state of the conveying device being operated.

The backlash phenomenon of the conveying device means that the belt of the conveying device is in poor contact with the lower roller, the pulley, etc., or is wasted due to wear of the lower roller or the pulley. For example, one end of the transfer device is moved up from a horizontal position by a predetermined angle (for example, 45 degrees) to move the raw material to move the raw material loaded in the transfer device of the lower line to the location of the raw material processor located at the upper side. Here, the raw material moves horizontally and then moves upward again. A gap is formed between the belt located at a portion raised by a predetermined angle (e.g., 45 degrees) and the lower roller and the pulley located at the lower portion of the belt to transfer the raw material from the lower portion to the upper portion, thereby causing a backlash phenomenon. This also affects the pulleys located at both ends of the conveying device, causing the belt to wind on the gears at both ends, or a fire due to frictional heat between the pulley and the belt at both ends. Therefore, in a facility using a conveying device, a guide roller is provided to prevent a backlash phenomenon.

The guide roller is provided on the upper portion of the belt at a position where a gap is generated between the belt and the lower roller or the pulley located at the lower portion and presses the belt so that the belt can be brought into close contact with the lower roller or the pulley located at the lower portion, And is rotated in the conveying direction.

Hereinafter, the structure and operation of a conventional conveying apparatus having a guide roller as described above will be briefly described. When the belt is divided into a horizontal part and a rising part in order to transfer the raw material from the lower part to the upper part, the guide roller is installed in the refraction part where the refraction occurs. The first and second guide rollers of the conventional conveying apparatus having the guide rollers are installed at fixed positions and are rotated in contact with the belt. Accordingly, the surface of the first or second guide rollers and the belt, which are in contact with the belt, may come into contact with only the first or second guide rollers on the side where the raw materials are not shifted. As a result, if the conveying device is used, the gap between the belt and the lower roller or the pulley is generated again due to the above-described cause, and the backlash phenomenon occurs again. Further, when the position of the guide roller is excessively brought into close contact with the belt, friction occurs at a portion where the belt contacts the guide roller, and the belt is severely broken.

Therefore, there is a need for a structure capable of performing the function without adjusting the position of the guide roller, and furthermore, a conveying device having a guide roller having a structure capable of fundamentally preventing the cutting and backlash of the belt is required.

Korean Patent Publication No. 1999-015968

SUMMARY OF THE INVENTION It is an object of the present invention to provide a transfer device capable of suppressing the slip phenomenon of the belt of the transfer device.

Another object of the present invention is to provide a transfer device capable of adjusting the force of a guide roller for pressing a belt in accordance with a change in tension of a belt of a transfer device.

A conveying device according to an embodiment of the present invention includes a guide roller portion provided to vertically move on a belt to which a raw material is fed and a guide roller portion connected to the guide roller portion and configured to press a guide roller portion As shown in Fig.

A plurality of the guide roller portions are provided, and the plurality of pressing portions are connected to the plurality of guide roller portions.

In addition, the belt may be a horizontal part which is horizontal with the ground and feeds the raw material in one direction, an upward part which is inclined upward in the horizontal part, a rising part which conveys the raw material in one direction, a boundary between the horizontal part and the rising part And the guide roller portion is disposed in the refracting portion.

The guide roller unit may include first and second guide roller rotation shafts connected to the first and second guide rollers rotatably corresponding to the first and second guide rollers, And a first support connected to the roller rotation shaft and having an upper portion connected to the cylinder.

The first stand and the second stand are disposed on both sides of the belt and extend in the vertical direction. The first stand and the second stand are provided on the first stand and the second stand, And first and second support rollers for inhibiting lateral movement of the second guide roller.

The first and second guide rollers are disposed on the upper side of the belt along the short side direction of the belt, and are disposed so as to be in contact with the upper side of the belt, respectively.

In addition, the first and second guide rollers include elastic members having rubber elasticity.

The pressing unit may include a measuring member for measuring a change in tension of the belt, a cylinder connected to the upper side of the roller unit to move the roller unit up and down, and a driver for transmitting power to the cylinder, As shown in FIG.

A second support is disposed on the upper side of the cylinder, the lower support is connected to the cylinder, and the first and second connection bars extend in the vertical direction. The second support is located on the upper side of the second support. And a first and a second elastic member located on the third support and disposed and fixed between the first and second connection bars and the first and second fixing members.

The measuring member may include any one of a tension sensor, a contact sensor, and a pressure sensor.

In addition, the first and second elastic members include a spring having the elasticity of the pressing portion.

The first and second fixing members may be fixed to the first and second connecting bars by using any one of bolting, riveting, and welding.

According to the embodiments of the present invention, the operation of the guide roller does not interfere with the conveying process of the conveying device and suppresses the slip phenomenon of the belt.

Further, the tension of the belt of the conveying device is sensed, and the force of the guide roller for pressing the belt in accordance with the tension change is adjusted.

Further, a guide roller of a material having an elastic force is provided to suppress the cutting or abrasion of the belt of the conveying device.

Further, the forces of the guide rollers are automatically adjusted so that the transfer device can prevent the raw material from being detached from the belt during transfer of the raw material.

1 is a cross-sectional view of a conventional conveying apparatus having a guide roller for explaining a problem.
2 is a cross-sectional view of a side of a transfer device having a guide roller according to an embodiment of the present invention.
3 is a cross-sectional view of a front side of a conveyance apparatus having a guide roller according to an embodiment of the present invention.
FIG. 4 is a cross-sectional view illustrating an operation of a transfer device having a guide roller according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know.

For convenience of explanation, words are named as follows.

The "horizontal part" is a part of the belt of the conveying device that conveys the raw material in one direction while keeping it horizontal with the ground.

The "rising portion" is a portion of the belt of the conveying device, in which a portion of the belt is inclined upward to convey the raw material upward in the horizontal portion, and raises the raw material and conveys the raw material in one direction.

The "refraction portion" is the boundary portion between the horizontal portion and the rising portion.

The following describes a problem of a conventional conveying apparatus having a guide roller.

1 is a cross-sectional view of a conventional conveying apparatus having a guide roller for explaining a problem.

The raw material processor 410 is installed at a higher position than the installation position of the raw material feeder 100 as shown in FIG. Therefore, in order to transfer the raw material 200 from the raw material supplying device 100 to the raw material treating device 410, one area of the transfer device 300 is a horizontal part and the other area is formed as a rising part. A guide roller 340 is disposed at a refracting portion which is a boundary portion between the horizontal portion and the rising portion to perform a function of applying pressure to the belt 360. For example, the raw material feeder 100 discharges the raw material 200 loaded therein to the lower belt 360, and the raw material 200 is placed on the upper side of the belt 360, horizontally moving in one direction in the horizontal portion, And moves to the upper portion of the material dispenser 410 so as to be transferred.

The conveying device 300 includes a belt 360 for conveying the raw material 200, a pulley 310 disposed at one end inside the belt 360 and contacting the inside of the belt 360, a rotating pulley 310, A belt pulley 331 located at the other inner side of the belt 360 and engaged with the driver 410 to rotate the belt 360 in accordance with the rotational motion of the driver, A plurality of lower rollers 350 spaced from each other in the longitudinal direction of the belt 360 so as to be arranged in the longitudinal direction of the belt 360 so as to facilitate the movement of the belt 360, And a guide roller 340 positioned on the upper side of the bending portion and applying pressure to the plurality of lower rollers 350 installed on the inner side of the belt to rotate to prevent backlash.

In order for the transfer device 300 to transfer the raw material 200, the drive device 410 rotates and the belt pulley 331 engaged with the drive device 410 rotates to rotate the belt 360 of the transfer device 300 Rotate in one direction. When the conveying device 300 is operated for a long time, the tension of the belt 360 changes and the above-described problems occur. Therefore, if the guide roller 340 installed at the bending portion of the belt 360 does not press the belt 360 held in the upward direction due to a change in tension, the belt 360 is lifted upwards, Only the pulley 310, the belt pulley 331, and the stationary pulley 320 are idle, that is, a backlash phenomenon occurs in a state in which the interval l is generated in a state in which the belt pulley 360 is stretched. This backlash phenomenon causes a fire due to the cutting of the belt 360 and the friction heat of the belt pulley 331 rotating with the belt 360. [ In order to prevent the backlash phenomenon, the belt 360 is replaced with a new one or the belt 360 is pressed so as to be in close contact with the lower roller 350, the pulley 310 and the belt pulley 331 located under the belt 360 do. However, the conventional guide roller 340 has difficulty in frequently adjusting the vertical position, and can not quickly respond to the tension change of the belt 360.

Next, a transfer apparatus having a guide roller according to an embodiment of the present invention will be described.

2 is a cross-sectional view of a front side of a conveyance apparatus having a guide roller according to an embodiment of the present invention.

Referring to FIG. 2, a conveying apparatus 500 having a guide roller according to an embodiment of the present invention includes a guide roller unit provided to move up and down on a conveyed belt, And a pressing portion that is connected to the roller portion and adjusts a force for pressing the guide roller portion according to a change in the tension of the belt.

The guide roller portion includes first and second guide rollers 510 and 510a and first and second guide roller rotation shafts 521 and 521b and a first support 520 and first and second support rollers 522 and 521b. : 522a, 522b.

The first and second guide rollers 510 and 510a and 510b are positioned above the bending portion of the belt 360 and pressurize the belt 360 so that the belt 360 is rotated by a plurality of lower rollers Time).

And rotates along the conveying direction of the belt 360. [ For example, the degree of pressurization rotates while applying a force such that the belt 360 and the lower roller (not shown) can contact each other in a constant downward direction.

The first and second guide rollers 510 and 510a and 510b may have a cylindrical shape and may be made of a rubber material having elasticity or the same material as the belt 360. For example, the first and second guide rollers 510 (510a, 510b) may be formed to have a wider width than the conventional guide rollers so that the pressure applied to the belt 360 is not concentrated at a specific point of the belt 360 . That is, the pressure applied to the belt 360 can spread evenly. Therefore, the belt 360 can be prevented from being cut off due to friction between the first and second guide rollers 510 (510a, 510b) and the belt 360. [

The first and second guide roller rotation shafts 521 and 521b are respectively disposed between the first or second guide rollers 510 and 510a and 510b and the first support 520, Is connected to the rollers 510 (510a, 510b), and the other end is rotatably connected to the inner surface of the first support 520.

In addition, one end may be rotatably connected to the first or second guide roller 510 (510a, 510b) and the other end may be connected to the inner surface of the first support 520.

The first and second guide roller rotating shafts 521 (521a and 521b) are bar-shaped and extend horizontally in the horizontal direction.

The inner side surface of the first support platform 520 is connected to the first and second guide roller rotation shafts 521 and 521b and the upper side of the first support platform 520 is connected to the cylinder bar 531 provided on the pressurizing portion, And is moved up and down in accordance with the up-and-down movement of the push-

The shape of the first support 520 is perpendicular to the body in the same direction at both ends of the body extending in the horizontal direction and at both ends of the body, and protrusions are formed at positions parallel to each other. First and second guide roller rotating shafts 521: 521a and 521b are connected to the inner surfaces of the protrusions respectively, and connected to a cylinder bar 531 to be described later on the body.

The first and second support rollers 522 522a and 522b are disposed at positions opposed to the first and second guide roller rotation shafts 521 and 521a and 521b, The other end of the first and second guide rollers 510 (510a, 510b) is connected to a rail provided on the first and second stands 342 (342a, 342b) Suppresses flow.

The pressing portion includes a cylinder 550 having a cylinder bar 531 connected to the upper side of the guide roller portion to move the guide roller portion up and down, a measuring member 560 for measuring a change in tension of the belt 360, A driver 570 having a control unit (not shown) for controlling the cylinder 550 according to the measured tension of the belt 360, a driver 570 positioned above the cylinder 550 and connected to the cylinder 550, A second support 530 having first and second connection bars 531 and 531b and 532b extending in the vertical direction on one side of the first support 530, A third support 540 connected to the second support 530 and a third support 540 connected to the first and second connection bars 531 531a and 532b, And first and second elastic members 580 (580a, 580b) arranged and fixed between two fixing members 590: 590a, 590b.

The cylinder 550 includes a cylinder bar 551 having an empty space therein, a part of which is located in an empty space, and the other part is exposed to the outside. The cylinder bar 551 is movable up and down between the inner hollow space of the cylinder 550 and the outside.

Since the shape of the cylinder 550 is a conventional shape, detailed description is omitted.

The measurement member 560 measures a change in the tension of the belt 360 and transmits the measured tension to a control unit (not shown) provided in the driver 570. Here, the following three methods can be used as a method of measuring the change in the tension of the belt 360.

First, a tension sensor (not shown) is provided so as to be in contact with the belt 360. A tension sensor (not shown) senses a change in tension of the belt 360 in real time while rotating along the conveying direction of the belt 360. Here, the description of the shape of the tension sensor (not shown) will be omitted since it is a general description.

Second, a contact sensor (not shown) is provided to be in contact with the belt 360. A contact sensor (not shown) maintains contact with the belt 360, and real-time senses a change in the number of times it is contacted by a change in the tension of the belt 360. That is, the belt 360, which maintains the steady state tension, is always in contact with the contact sensor (not shown), and when the tension of the belt 360 changes and the belt 360 extends, Not shown) is intermittently out of contact during the transfer process. Here, the description of the shape of the contact sensor (not shown) is omitted because it is a general description.

Third, a pressure sensor (not shown) is provided on one surface of the second support 530 as shown in FIG. The first and second guide rollers 510 and 510a and 510b positioned below the cylinder bar 551 are moved upward and downward by the upward and downward movement of the cylinder bar 551 provided in the cylinder 550, 360 is measured. A change in the tension of the belt 360 causes an instantaneous change in the degree of pressure applied when the belt 360 is stretched. A change in the tension of the belt 360 is measured by detecting a change in the pressure.

In the above description, the degree of the pressure applied to the belt 360 by the guide roller unit does not act as an obstacle to the process of conveying the raw material by rotating the belt 360, and the belt 360 is moved to the lower roller (not shown) Which means that the pressure is kept at the same level.

The conveying device 500 having the guide roller according to the embodiment of the present invention can be applied to the conveying device having the guide roller in a real time according to the change of the tension of the belt 360 The degree of pressure can be controlled. For example, the actuator 570 controls the cylinder 550 in accordance with a change in the tension sensed by the measuring member 560 to cause the guide roller unit to move downward.

The driving unit 570 is provided with a control unit (not shown) receiving a change in tension of the belt 360 sensed by the measuring member 560 and a control unit (not shown) such that the cylinder bar 551 of the cylinder 550 can be moved up and down Thereby regulating the power supplied to the cylinder 550.

Since the shape of the driver 570 is a typical shape, detailed description is omitted.

The second support 530 is disposed between the measuring member 560 and the actuator 570 and the cylinder 550. The lower body of the second support 530 is connected to the upper surface of the cylinder 550, A measuring member 560 and a driver 570 are provided on the surface of the body and first and second connecting bars 531 and 531a and 531b for connecting with the third support are formed vertically to the body and extend upward have.

The first and second connection bars 531 and 531b provided on the second support base 570 penetrate through the through holes provided in the third support base 580 and the third support bars 580, respectively. Each of the exposed regions of the first and second connecting bars 531: 531a and 531b passes through the inside of the first and second elastic members 580: 580a and 580b, respectively, Member 590 (590a, 590b).

The first and second elastic members 580: 580a and 580b are disposed between the third support 580 and the first and second fixing members 590: 590a and 590b, , And the first and second guide rollers 510 (510a, 510b) are prevented from being separated from the initial installation height due to an external impact.

The first and second fixing members 590 and 590a and 590b may be used to adjust the mounting height of the first and second guide rollers 510 and 510a and 510b to the cylinder 550 have. For example, a screw thread may be formed at the upper end of the first and second connecting bars 531, 531a and 531b, and corresponding bolts may be used as the first and second fixing members 590: 590a and 590b. Also, the first and second fixing members 590: 590a and 590b may be formed by a method such as bolting, riveting, welding, or the like.

The first and second connecting bars 571, 571a and 571b, which are perpendicular to the body and extend in the up-and-down direction, are formed on the one surface of the second support base 530 in a horizontal Respectively. Here, the predetermined area means an area where the cylinder 550, the measuring member 560, and the driver 570 can be installed.

The third support 540 is connected to the second support 530 via the first and second connection bars 531 and 531b provided on the second support 530 and the first and second stands 342 : 342a, 342b, and both ends thereof are connected to one surface of each of the first and second stands 342 (342a, 342b).

The shape of the body of the third support 540 is a bar extending in the lateral direction, and the body is provided with through holes corresponding to the first and second connection bars 531, 531a and 531b.

The first and second stands 342a and 342b are disposed at positions opposite to each other in the short side direction of the belt 360 about the belt 360 and the first and second stands 342 and 342a and 342b, Is formed to extend in the vertical direction. A third support 580 is connected between the first and second stands 342 (342a, 342b).

The operation of the transfer device having the guide roller according to the embodiment of the present invention will be described below.

FIG. 3 is a cross-sectional view of a side view of a conveying apparatus having a guide roller according to an embodiment of the present invention, FIG. 4 is a diagram illustrating a state (a) of a conveying apparatus having a guide roller according to an embodiment of the present invention, (C) a side view for explaining the operation of the guide roller portion in response to a change in tension; Fig.

Referring to FIG. 3, the guide roller portion of the conveying apparatus 500 having the guide roller according to the embodiment of the present invention is positioned above the refracting portion of the belt 360 to pressurize the belt 360, The lower roller 350 and the belt 390 located at the lower part of the conveying rollers 360 are closely contacted to perform the conveying process.

Referring to the normal operating state in Fig. 4 (a), the belt 360 is brought into contact with the belt 360 at the upper portion of the bending portion of the belt 360, and the lower roller 350, Allow the transfer process to proceed.

(b) Referring to the state in which the tension of the belt changes, the tension of the belt 360 changes, that is, the phenomenon that the belt 360 is stretched and the belt 360 described above is curled in the belt pulley The phenomenon that the belt 360 is cut off, and various pulleys (not shown) and the lower roller 350 located inside the belt 360 are idle.

(c) As for the operation of the guide roller unit according to the change in tension, the change in tension is detected and measured by the measuring member provided in the pressing unit, the guide roller unit is lowered according to the measured degree of change in tension, The lower roller 350 located at the lower portion of the lower roller 360 is closely contacted to advance the transferring process. The conventional guide roller can not be detected when there is a change in the tension of the belt 360 and the position of the guide roller is also changed after the occurrence of the trouble. However, The tension of the belt 360 can be changed in real time.

Further, in the above-described embodiment, the plurality of guide roller portions are controlled by one pressing portion, but a plurality of guide roller portions may be provided, and a plurality of the pressing portions connected to the plurality of guide roller portions may be provided.

Next, a description will be given of an operation method of a transfer apparatus having a guide roller according to an embodiment of the present invention.

First, the guide roller portion is disposed so as to be in close contact with the bent portion of the belt. For example, the degree of close contact between the guide roller part and the lower roller is set so that the guide roller part is brought into close contact with the lower roller located inside the belt, and the guide roller part is brought into close contact with the belt so as not to interfere with the conveying process.

Thereafter, the change in tension of the belt is detected and measured in real time during the conveying process. For example, the above-described measuring member is provided so as to be placed in contact with the belt to detect a change in tension of the belt.

Then, when a change in the tension of the belt is sensed, the degree of change in the tension of the belt at the measuring member is generated and transmitted to the driving unit.

Thereafter, the driving unit controls the power of the cylinder in accordance with the change in the tension of the belt transmitted from the measuring member.

Thereafter, the cylinder lowers the guide roller portion under the control of the driving portion and maintains a predetermined pressure. Here, the predetermined pressure refers to a pressure that does not act as an obstacle to the above-described conveying process, and refers to a force with which the belt can abut the lower roller.

Thereafter, the process of sensing and measuring the tension change of the belt in real time during the transferring process is performed again.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, 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 present invention as defined by the following claims and their equivalents. It will be understood. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100: raw material supply device 200: raw material
300: Feeding device 310: Pulley
320: stationary pulley 331: belt pulley
340: guide roller 341: guide roller rotating shaft
342: Stand 350: Lower roller
351: lower roller rotation shaft 360: belt
400: raw material processing apparatus 410: actuator
510: guide roller 520: first support
521: guide roller rotation shaft 522: support roller
530: second support table 531: connection bar
540: third support 550: cylinder
551: Cylinder bar 560: Measuring member
570: Actuator 580: Elastic member
590: Fixing member 610: Guide roller
620: first support table 621: guide roller rotation shaft
622: Support roller 630; The second support
631: Connection bar 640: Third support
650: cylinder 651: cylinder bar
660: Measuring member 670: Actuator
680: elastic member 690: fixing member

Claims (12)

A guide roller portion provided to move in a vertical direction on a belt to which a raw material is fed; And
And a pressing portion connected to the guide roller portion and adapted to adjust a pressing force of the guide roller portion according to a change in tension of the belt. The method according to claim 1,
And a plurality of the guide roller portions are provided, and the plurality of pressing portions are connected to the plurality of guide roller portions, respectively. The method according to claim 1,
Wherein the belt has a horizontal portion that is horizontal with the ground and feeds the raw material in one direction, an upward portion that is inclined upward in the horizontal portion, a rising portion that conveys the raw material in one direction, And the guide roller portion is disposed in the refraction portion. The method according to any one of claims 1 to 3,
The guide roller portion
A rotatable first and second guide rollers;
First and second guide roller rotation shafts rotatably connected to the first and second guide rollers, respectively; And
And a first support member connected to the first and second guide roller rotation shafts and having an upper portion connected to the cylinder. The method of claim 4,
First and second stands located on both sides of the belt and extending in the vertical direction;
And a first and a second support rollers connected to the first and second guide roller rotation shafts and disposed on the first and second stands and configured to inhibit lateral movement of the first and second guide rollers, Device. The method of claim 4,
Wherein the first and second guide rollers are disposed on the upper side of the belt along the short side direction of the belt and are disposed so as to be in contact with the upper side of the belt, respectively. The method of claim 4,
Wherein the first and second guide rollers have an elastic force of a rubber material. The method according to any one of claims 1 to 3,
The pressing portion
A measuring member for measuring a change in tension of the belt;
A cylinder connected to an upper side of the roller unit to move the roller unit up and down;
And a driver for transmitting power to the cylinder, wherein the actuator is controlled in accordance with a change in the tension. The method of claim 8,
A second support having an upper side of the cylinder and a lower side connected to the cylinder and having a first and a second connection bar extending in a vertical direction;
A third support positioned above the second support and connected to the second support; And
And first and second elastic members which are located above the third support and are disposed and fixed between the first and second connection bars and the first and second fixing members. The method of claim 8,
Wherein the measuring member includes one of a tension sensor, a contact sensor, and a pressure sensor. The method of claim 3,
Wherein the pressing portion has an elastic force using a spring with the first and second elastic members. The method of claim 9,
Wherein the first and second connecting members are fixed to the first and second fixing members using one of bolting, riveting, and welding.

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