KR101605230B1 - Apparatus for controlling the balance of tension weight - Google Patents

Abstract

And more particularly, to a tension-weight balancing device capable of adjusting a balance of a belt by restoring an inclined tension weight when the belt conveyor is running.
The tension balance adjusting device of the present invention comprises: a tension pulley for providing a rotational force to a belt conveyor; A tension weight spaced apart from the lower end of the tension pulley; A meander detecting unit for detecting a horizontal state of the tension weights; A driving unit for restoring the tension weight to a horizontal state when the tension weight is tilted to one side; And a control unit for receiving the position signal from the meandering sensor unit to operate the driving unit. The control unit receives a position signal from the meandering unit in real time during operation of the belt conveyor, At the same time, the position signal is received after a predetermined time has elapsed.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a tension balance control apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tension-weight balancing device, and more particularly, to a tension-weight balancing device that senses a tensioned weight tilted to one side by a meander of a belt conveyor and adjusts the balance of the tension weight and the belt.

Generally, belt conveyor systems are used most often as a method for conveying raw materials such as coal.

Since the length of the belt conveyor used at the work site is several m to several km and the length thereof is considerable, the tension of the belt changes frequently due to the ambient temperature or the like. In order to keep the tension of the belt constant, a tension weight is tightened so that a predetermined tension can be maintained by the weight of the belt.

1, a conventional tension weight 100 is spaced apart from the lower end of a tension pulley 200 on a belt conveyor, and both sides thereof are supported on a first guide rail 600 and a second guide rail 610 So as to be vertically movable.

When the tension of the belt 20 is reduced, the tension pulley 200 is lowered corresponding to the reduced tension due to the load of the tension weight 100, so that the tension of the belt 20 is maintained.

However, since the material to be loaded on the Beltran conveyor varies in size and type, a phenomenon occurs that the material is biased toward one side of the belt 20 during conveyance. When the raw material is biased toward the belt 20, Unstable causes various problems, and the phenomenon that the movement of the belt 20 becomes unstable is called a meandering phenomenon.

This meandering phenomenon occurs even when the band pulley 10 and the tension pulley 200 that rotate the belt 20 are worn as well as the material of the raw material. If the meandering phenomenon continues, uneven wear of the belt 20 may occur In addition, the raw material loaded on the belt 20 is also shaded.

If the meandering phenomenon occurs, if the belt conveyor is continuously operated without immediately recognizing it, the belt 20 may be torn to cause a serious accident. In order to replace the belt 20 and repair the apparatus, Is consumed.

In addition, when the meandering phenomenon occurs, the tension weight 100 fastened to maintain the tension of the belt 20 is not maintained in a horizontal state, but is biased to one side. When the tension weight 100 is inclined to one side, the inclination of the tension pulley 200 is increased by the load, and the meandering phenomenon and the wear of the belt 20 are progressed more rapidly.

Accordingly, when the belt 20 is meandering and the horizontal state of the tension weight 100 becomes unstable, the operation of the belt conveyor is immediately stopped, the tension weight 100 is disassembled to align the horizontal, The feed of the raw material is frequently interrupted and the operation time is long.

In addition, since the horizontal state of the tension weight 100 is difficult to visually recognize, it is difficult for the operator to periodically measure the horizontal state.

In order to solve such a problem, a conventional method of preventing warping of a conveying conveyor system for conveying coal (Japanese Patent Laid-Open No. 10-1078337) and a belt skew adjusting device in a tension waist of a belt conveyor (Patent No. 10-0902820) .

In the conventional "anti-skew device (conveying system for conveying coal conveying system) (patent 10-1078337)" of the prior art, the adjustment rods of the anti-skid device are pulled toward the fixing rods to release the engagement between the hooks and the teeth formed on the adjustment rods, Which is capable of preventing the skew of the belt by a simple operation of adjusting the weight of the conveyor belt.

The apparatus for preventing warpage of a conveyor system for conveying coal includes a drive roller which is installed close to coal and is driven by driving of a motor, a driven roller which is installed so as to be close to a position where coal is to be moved, A plurality of idlers provided between the driving roller and the driven roller to prevent sagging of the belt, and anti-skew devices installed on both sides of the idler so as to be rotatable about the hinge axis to prevent skewing of the belt .

In addition, the anti-skid device includes a rotary frame installed on both sides of the idler, a hook formed in a shape of an arc and upwardly disposed on the upper surface of the rotary frame and having teeth on an outer peripheral surface thereof, And a regulating part connected to the roller engaging part and the roller engaging part hinged to each other and to which the anti-skew prevention roller is engaged, and an adjusting part coupled to the teeth of the hook part to adjust the angle of the anti-

However, since the skew prevention device of the conveying system for conveying coal does not have a means for accurately detecting whether or not the belt meandering, the belt can not be prevented from skewing, There has been a problem in that a loss of cost and a safety accident due to dropping still occur.

Further, in the conventional "belt skew adjusting device in the tension weight of the belt conveyor" (patent document 10-0902820), the moving weight moved in the width direction of the belt is moved in the direction opposite to the tilting direction of the tension weight by the belt skew Thereby adjusting the tension of the belt in the tensioning direction of the belt conveyor.

Such a belt meandering adjustment device in a tension weight of such a belt conveyor includes a pair of guide frames formed to be long in the vertical direction and parallel to each other, a weight support frame mounted so as to slide on the guide frame, A belt conveyor having a tension weight pulley placed thereon and a tension weight fixed to a lower side of the weight support, the belt conveyor having a convex downward arc shape and being rotatably mounted at the center on the weight support base and positioned at the top of the tension weight, An arc rail which is rotated so that the portion where the belt is warped is directed downward, and a moving weight which is freely movable in the longitudinal direction on the arc rail.

However, the belt skew adjustment device in the tension weight of such a belt conveyor has a problem in that it can not immediately deal with the meandering phenomenon that occurs from time to time because the worker has to manually adjust it.

Korean Patent No. 10-1078337 (Oct. 25, 2011) Korean Patent No. 10-0902820 (June, 2009)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a tension weight balance adjusting device for adjusting a balance of a belt by restoring a tensioned weight that is inclined when the belt conveyor is shifted to a horizontal position.

According to an aspect of the present invention, there is provided an apparatus for controlling a balance weight, including: a tension pulley for providing a rotational force to a belt conveyor; A tension weight spaced apart from the lower end of the tension pulley; A meander detecting unit for detecting a horizontal state of the tension weights; A driving unit for restoring the tension weight to a horizontal state when the tension weight is tilted to one side; And a control unit for receiving the position signal from the meandering sensor unit to operate the driving unit. The control unit receives a position signal from the meandering unit in real time during operation of the belt conveyor, At the same time, the position signal is received after a predetermined time has elapsed.

And a cushioning portion connecting the tension weight and the driving portion to prevent a load from being applied to the driving portion when the tension weight is tilted to one side.

A first connecting plate and a second connecting plate, one end of which is fastened to both ends of the tension pulley and the other end of which is fastened to the tension weight plane, and a first guide rail and a second guide Wherein the meander detecting unit includes a horizontal pipe connected to the first connecting plate and the second connecting plate, a first sensor and a second sensor fastened to both ends of the horizontal pipe, And a horizontal ball moving in the horizontal direction.

The driving unit includes a first fixing device and a second fixing device respectively fastened to the first guide rail and the second guide rail, a support plate coupled to the first fixing device and the second fixing device, And a first cylinder and a second cylinder which are spaced apart from each other and spaced apart from each other in a plane of the plate, and the driving unit is located apart from the lower end of the tension weight.

The cushioning portion includes a connection box to be fastened to the bottom surface of the tension weight, a body to be fastened to the plane of the support plate and disposed between the first and second cylinders, and a connecting body to which the tension weight is tilted And a connecting bar hinged to the body so as to be rotatable in a direction corresponding thereto.

The driving unit includes a first fixing device and a second fixing device respectively fastened to the first guide rail and the second guide rail, a support plate coupled to the first fixing device and the second fixing device, And a first cylinder and a second cylinder which are spaced apart from each other in a plane of the plate, wherein the first guide rail and the second guide rail contain iron components, and the first and second fixing devices are formed of electromagnets , The control unit receives a position signal from the first sensor to move the first cylinder up and down and receives a position signal from the second sensor to move up and down the second cylinder, And a current is supplied to the first fixing device and the second fixing device upon receiving the position signal.

The control unit receives a position signal in real time from the first sensor and the second sensor during operation of the belt conveyor and receives a position signal after a predetermined time elapses at the beginning of the belt conveyor .

The present invention has the following various effects.

First, the present invention has the effect of eliminating the meandering phenomenon of the belt conveyor by maintaining the balance of the tension weights.

Second, the present invention prevents wear of belts and rollers.

Third, the present invention can improve the life of the belt conveyor.

Fourth, the present invention can secure the safety of the operator.

Fifth, the present invention is easy to maintain.

1 is a schematic view of a conventional belt conveyor and tension weights,
FIG. 2 is a perspective view of a skew detecting unit according to the present invention. FIG.
3 is a view showing a fastening state of the tension balance adjusting device according to the present invention,
4 is a view showing a fastened state of the belt conveyor according to the present invention.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings, and the same reference numerals will be applied to the constituent elements described in the background art unless otherwise specified.

The description of the tension balance adjusting device of the present invention described below is a preferred embodiment of the present invention, and the present invention is not limited to the embodiments but can be implemented in various forms.

4, the tension balance adjusting apparatus according to an embodiment of the present invention includes a tension pulley 200, a tension weight 100, a skew detecting unit 300, a driving unit 400, And a cushioning part 500.

The tension pulley 200 is one of the elements constituting the belt conveyor together with the band pulley 10. The belt 20 rotates in an endless track as the tension pulley 200 and the band pulley 10 rotate.

The tension weight 100 is spaced apart from the lower end of the tension pulley 200 and the tension force 100 can maintain the tension of the belt 20 constant. The tension weights 100 are respectively fastened to both ends of the tension pulley 200 through the first connecting plate 110 and the second connecting plate 120 which are spaced apart from each other in the plane, The first guide rail 130 and the fourth fixing device 140 are coupled to the first guide rail 600 and the first guide rail 610 so as to be movable up and down.

When the meandering phenomenon occurs in the belt 20 during the operation of the belt conveyor, the tension pulley 200 is inclined in one direction, and accordingly, the tension weight 100 is also inclined in the same direction.

The meander detection unit 300 detects the horizontal state of the tension weight 100 and connects the first and second connection plates 110 and 120 to each other. In the present embodiment, the meandering sense unit 300 is positioned between the tension pulley 200 and the tension weight 100, but it may be fastened to the plane or bottom of the tension weight 100, if necessary.

The driving unit 400 restores the tension weight 100 to a horizontal state when the tension weight 100 is tilted to one side by the meandering phenomenon of the belt 20 and is located apart from the lower end of the tension weight 100. [

The control unit (not shown) receives the position signal corresponding to the inclination of the tension weight 100 from the above-described meandering sensing unit 300, and operates the driving unit 400.

The buffering part 500 connects the tensioning weight 100 and the driving part 400 so that a load is applied to the driving part 400 when the tensioning weight 100 tilts in one direction due to the skew phenomenon of the belt 20 It serves as a buffer for prevention.

The meander detection unit 300 includes a horizontal pipe 340, a first sensor 320, a second sensor 330 and a horizontal ball 310. The driving unit 400 includes a first fixed And a second cylinder 420. The buffer unit 500 includes a connection box 510, a body (not shown), and a second body 420. The first body 410 includes a body 440, a second body 450, a support plate 430, 530, and a connecting bar 540. [

One end of the horizontal tube 340 is fastened to the first connection plate 110 and the other end thereof is fastened to the second connection plate 120. A first sensor 320 and a second sensor 330 are fastened to both inner ends of the horizontal pipe 340 and a horizontal ball 340 moving in a direction in which the tension weight 100 is inclined 310).

When the horizontal ball 310 moves as the tension weight 100 is tilted and the first sensor 320 or the second sensor 330 is touched, the sensor transmits a position signal to a controller (not shown).

If necessary, the horizontal pipe 340 may be made of a transparent material, or a check window may be installed on one side of the horizontal pipe to visually confirm the movement of the horizontal ball 310 moving in the horizontal pipe 340.

A first fixing device 440 and a second fixing device 450 are fastened to both sides of the driving part 400. The first fixing device 440 is fastened to the first guide rail 600, The fixing device 450 is fastened to the first guide rail 610. The first fixing device 440 and the second fixing device 450 are coupled to move up and down on the first guide rail 600 and the first guide rail 610, The first guide rail 600 and the first guide rail 610 are not separated from the driving unit 400 by the first and second fixing devices 450 and 450.

3, the first fixing device 440 and the second fixing device 450 are connected to each other by a support plate 430 and the first cylinder 410 And the second cylinder 420 are spaced apart from each other.

The connection box 510 is fastened to the bottom surface of the tension weight 100, and the connection bar 540 is fastened to the lower surface thereof.

A body 530 is fastened to the plane of the support plate 430 and is preferably positioned between the first cylinder 410 and the second cylinder 420. The connecting box 540 and the body 530 are hinged to each other via the rotating shaft 550 and the connecting bar 540 is hinged to the connecting box 540. [ And the connection box 510 are fixedly connected.

When the tension buffer 100 is coupled to the tension plate 100 and the support plate 430 so that the tension plate 100 is tilted to one side due to the skew of the belt 20, .

It is preferable that the first guide rail 600 and the first guide rail 610 are formed of a material containing an iron component and that the first and second fixing devices 440, As shown in FIG.

When the horizontal ball 310 moves toward the first sensor 320 or the second sensor 330 as the tension weight 100 is tilted and comes into contact with the first sensor 320 or the second sensor 330, The control unit (not shown) transmits the position signal to the control unit (not shown). If the received position signal is received from the first sensor 320, the first cylinder 410 is moved up and down. 330, the second cylinder 420 is moved up and down.

When a position signal is received from the first sensor 320 or the second sensor 330, a control unit (not shown) supplies a current to the first and second fixing units 440 and 450 simultaneously do. The first fixing device 440 and the second fixing device 450 form a magnetic field by the supplied current and are firmly attached to the first guide rail 600 and the first guide rail 610.

When the belt conveyor is initially operated in a stopped state, the band pulley 10 and the tension pulley 200 are severely flowed, and the phenomenon gradually disappears with a lapse of a predetermined time.

Accordingly, the control unit (not shown) receives the position signal from the first sensor 320 and the second sensor 330 in real time while the belt conveyor is in operation. When the belt conveyor is initially operated, It may be desirable to receive the position signal.

Hereinafter, the operation of the present invention for balancing the tension weight 100 will be described with reference to FIG.

The tension pulley 200 is inclined in one direction when the meandering phenomenon occurs due to the knitting of the raw material or the abrasion of the roller while the raw material is being conveyed along the belt conveyor. When the tension pulley 200 is inclined, the tension weight 100 which is connected to the tension pulley 200 to maintain the tension of the belt 20 is also inclined in the same direction. At this time, the horizontal ball 310 located in the horizontal pipe 340 So that the tension weight 100 moves along the tilting direction.

When the horizontal ball 310 moves and contacts the first sensor 320 or the second sensor 330, the sensor transmits a position signal to a controller (not shown).

When the tension weight 100 is tilted in one direction, the buffer unit 500 connected to the tension weight 100 and the driving unit 400 is automatically moved, and the connection box 510 and the body 530 are connected The connection bar 540 is rotated about the rotation axis 550 along the tilting direction of the tension weight 100 to prevent a load on the support plate 430 from being applied to the rotation.

For example, when the tension weight 100 is tilted toward the first sensor 320, the horizontal ball 310 moves in the direction of the first sensor 320 and comes into contact therewith. Accordingly, the first sensor 320 transmits a position signal to a control unit (not shown). In the control unit (not shown), the first cylinder 410 is operated according to the received position signal, 440 and the second fixing device 450. [

The first fixing device 440 and the second fixing device 450 form a magnetic field by the supplied electric current and are thus firmly fixed to the first guide rail 600 and the first guide rail 610.

The control unit (not shown) causes the first cylinder 410 to move up and down to raise the tilted side of the tension weights 100, so that the tension weights 100 are restored to the horizontal state again. When the inclined tension weight 100 is in a horizontal state due to the lifting and lowering of the first cylinder 410, the horizontal ball 310 in contact with the first sensor 320 is changed into a non-contact state, The first sensor 320 recognizes that the non-contact first sensor 320 is in the non-contact state, stops the elevation of the first cylinder 410, and returns the first cylinder 320 to its original position.

If the tension weight 100 is tilted toward the second sensor 330, the control unit (not shown) operates the second cylinder 420 to adjust the balance of the tension weight 100.

When the belt conveyor is initially operated with the belt conveyor stopped, the band pulley 10 and the tensile disadvantages are severely flowed, and the phenomenon gradually disappears with a lapse of a predetermined time.

Accordingly, during the operation of the belt conveyor, the control unit (not shown) receives the position signal from the first sensor 320 and the second sensor 330 in real time to receive the first cylinder 410 or the second cylinder 420 However, if the belt conveyor is in the stopped state and the belt conveyor is initially operated, the position signal is received after a predetermined time has elapsed.

Since the time for which the band pulley 10 and the tension pulley 200 are stabilized differs depending on the use environment, when the operator grasps the time beforehand and inputs it to the controller (not shown), the controller (not shown) operates according to the set time .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments. It will also be appreciated that many modifications and variations will be apparent to those skilled in the art without departing from the scope of the invention.

100: Tension weight 200: Tension pulley
300: Meander detection unit 310: Horizontal ball
320: first sensor 330: second sensor
340: Horizontal tube 400:
410: first cylinder 420: second cylinder
430: support plate 440: first fixing device
450: second fixing device 500: buffer

Claims (7)

A tension pulley for providing a rotational force to the belt conveyor;
A tension weight spaced apart from the lower end of the tension pulley;
A meander detecting unit for detecting a horizontal state of the tension weights;
A driving unit for restoring the tension weight to a horizontal state when the tension weight is tilted to one side; And
And a control unit for receiving the position signal from the meandering unit and operating the driving unit,
Wherein the control unit receives a position signal in real time from the meandering sensing unit during operation of the belt conveyor and receives a position signal after a predetermined time elapses at the beginning of the belt conveyor. Regulating device.
The method according to claim 1,
And a cushioning portion connecting the tension weight and the driving portion, the cushioning portion preventing a load from being applied to the driving portion when the tension weight is tilted to one side.
The method of claim 2,
A first connecting plate and a second connecting plate, one end of which is fastened to both ends of the tension pulley and the other end of which is fastened to the tension weight plane, and a first guide rail and a second guide Including rails,
Wherein the meandering detection unit includes a horizontal pipe connected to the first connection plate and the second connection plate, a first sensor and a second sensor fastened to both ends of the horizontal pipe, and a horizontal ball moving in the horizontal pipe, And a tension control means for controlling the tension control means.
The method of claim 3,
The driving unit includes a first fixing device and a second fixing device respectively fastened to the first guide rail and the second guide rail, a support plate coupled to the first fixing device and the second fixing device, A first cylinder and a second cylinder which are spaced apart from each other in a plane of the plate,
And the driving unit is located apart from the lower end of the tension weight.
The method of claim 4,
The cushioning portion includes a connection box to be fastened to the bottom surface of the tension weight, a body to be fastened to the plane of the support plate and disposed between the first and second cylinders, and a connecting body to which the tension weight is tilted And a connecting bar hinged to the body so as to be pivotable in a direction corresponding to the tension bar.
The method of claim 3,
The driving unit includes a first fixing device and a second fixing device respectively fastened to the first guide rail and the second guide rail, a support plate coupled to the first fixing device and the second fixing device, A first cylinder and a second cylinder which are spaced apart from each other in a plane of the plate,
Wherein the first guide rail and the second guide rail contain an iron component,
The first fixing device and the second fixing device are formed of electromagnets,
Wherein the controller receives a position signal from the first sensor to move the first cylinder up and down and receives a position signal from the second sensor to move up and down the second cylinder, And a current is supplied to the first fixing device and the second fixing device upon reception of the signal.
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