KR101220913B1 - Belt conveyer system with meandering preventing apparatus - Google Patents

Abstract

PURPOSE: A belt conveyor system with an anti-meandering device is provided to detect moving speed, moving direction, and amount of meandering of a belt by using the anti-meandering device and to quickly return the belt to an original position by horizontally rotating an anti-meandering part according to the detected results. CONSTITUTION: A belt conveyor system with an anti-meandering device comprises a driving roller(22), a driven roller(23), a belt(24), and the anti-meandering device(40). The anti-meandering device comprises one or more anti-meandering roller parts, a driving part, and a control unit. The anti-meandering roller parts are installed under the belt at a right angle to a moving direction thereof to guide the belt. The driving part generates a driving force to simultaneously rotate one or more anti-meandering roller parts according to the direction of meandering of the belt. The control unit controls the operation of the driving part.

Description

Belt conveyor system with meander prevention device {BELT CONVEYER SYSTEM WITH MEANDERING PREVENTING APPARATUS}

The present invention relates to a belt conveyor system, and more particularly to a belt conveyor system having a meandering prevention device for preventing meandering of the conveyor belt for conveying the conveyed material.

In general, a belt conveyor system with a meandering device is used in a manner of transporting a conveyed material such as coal.

A belt conveyor system having a conventional meandering device is provided with a non-uniform amount of feed material supplied on a belt rotating at high speed, or when the feed is biased to one side of the belt, or air is introduced between the roller and the belt to generate play. In this case, the belt is shifted toward one side with respect to the direction in which the belt proceeds, that is, meanders.

As such, when the belt meanders, there are disadvantages such as damage to the belt, loss of cost and safety accidents due to deformation of the structure, falling load, and the like.

Therefore, the belt conveyor system having a meandering prevention device according to the prior art is not able to accurately load the conveyed object in a desired position, and there is a problem that the conveyed object falls from the belt during conveyance of the conveyed material, causing economic losses.

In order to solve this problem, the applicant has applied for and registered a meander prevention device of a conveyor system for conveying coal in the Republic of Korea Patent Registration No. 10-1078337 (2011.11.01. Announcement, hereinafter referred to as 'Patent Document 1') have.

1 is a configuration diagram of a conveyor system to which a meandering prevention device of a conveyor system for coal transport according to Patent Document 1 is applied, and FIG. 2 is a perspective view of the meandering prevention device shown in FIG. 1.

Conveyor system 1 to which the meander prevention device of the conveyor system for conveying coal according to Patent Literature 1 is applied is a driving roller 2 which is installed in close proximity to coal and driven by driving of a motor 3, as shown in FIG. ), A driven roller (not shown) rotatably installed near a position to move coal, a belt 4 connecting the driving roller 2 and the driven roller, and between the driving roller 2 and the driven roller. Meander prevention device 6 which is installed in the plurality of idlers 5 and the idler 5 on both sides of the idler 5 to prevent sagging of the belt 4 to be rotatable about the hinge axis to prevent meandering of the belt 4. ).

As shown in FIG. 2, the meandering prevention device 6 is formed in an arc-shaped rotating frame 7 installed on both sides of the idler 5, and is installed upward on the upper surface of the rotating frame 7 and on the outer circumferential surface thereof. The hook portion (8) and the roller coupling portion (10) and the roller which are hinged to the rotating frame (7) and the meandering prevention roller (11) are coupled to the upper part so as to enable rotational movement about the hook portion (8) and the hinge shaft (9) where the teeth are formed. It is connected to the coupling portion 10 and is engaged with the teeth of the hook portion 8 includes an adjusting portion 12 for adjusting the angle of the meander prevention roller (11).

Patent Document 1 configured as described above is a simple operation of adjusting the rotation angle of the meandering prevention device 6 by releasing the engagement of the teeth formed on the hook portion 8 and the adjusting portion 12 of the meandering prevention device 6. The meandering of (4) can be prevented.

However, Patent Document 1 has a problem in that when the meandering of the belt occurs, the administrator has to move to the position where the meandering occurs so that the belt can be returned to the correct position to manually operate the rotation angle of the meandering preventing device.

Republic of Korea Patent Registration No. 10-1078337 (August 1, 2011)

The present invention is to solve the problems as described above, an object of the present invention is to provide a belt conveyor system having a meandering prevention device that can stably transport the conveyed material by preventing the meandering of the belt applied to the conveyor system. It is.

Another object of the present invention is to provide a belt conveyor system having a meandering prevention device for preventing meandering of the belt by rotating the meandering prevention device according to the angle at which the meandering occurs when meandering of the belt occurs during conveyance of the conveyed material.

Still another object of the present invention is to provide a belt conveyor system having a meandering prevention device which can simplify the configuration of a meandering preventing device for preventing meandering of the belt.

According to a feature of the present invention for achieving the object as described above, the present invention is installed close to the position in which the conveying material to be transported and driven by the drive of the motor, the position to convey the conveyed object A driven roller rotatably installed in proximity to the belt, a belt connecting the driving roller and the driven roller, a meandering sensing device for sensing the conveying speed, the feeding direction and the amount of meandering of the belt when the belt meanders, and the driving roller and the driven roller And a meandering prevention device installed at a predetermined interval therebetween to prevent the meandering by quickly returning the belt to its original position upon occurrence of meandering of the belt based on a detection signal of the meandering detection unit, wherein the meandering prevention device includes a lower portion of the belt. At least one meandering prevention roller unit which is installed at right angles to the conveying direction to guide the belt, the bell A driving unit for generating a driving force to simultaneously horizontally rotate the at least one meandering prevention roller unit according to the meandering direction when a meandering occurs in the vehicle; and control means for controlling the driving of the driving unit based on a detection signal of the meander detecting device; The control means controls the driving of the driving unit by calculating the rotational direction and the rotational amount of the motor provided in the driving unit based on the conveying speed, the conveying direction and the meandering amount of the belt according to the detection signal of the meandering detecting device. .

The meandering detection device is installed at predetermined intervals spaced by a predetermined distance on both sides of the belt and is installed at one end of the meander detecting unit and the meandering prevention device for detecting whether the meandering occurs and the amount of meandering. It characterized in that it comprises a belt detecting unit for detecting the speed and the conveying direction.

The meander detection unit is a sensing roller that rotates in contact with the belt when the meandering of the belt occurs, a rotating arm is coupled to the upper surface of one end of the sensing roller is rotatably coupled to the other end, the rotation arm is coupled to the upper surface And an encoder unit configured to detect a rotation angle of the rotation shaft module and a rotation shaft module provided with the rotation shaft.

The belt detecting unit is provided with a rotating roller which rotates in contact with a lower surface of the belt and a first and second proximity sensor installed at one side of the rotating roller at an angle of 90 ° to sense a sensing dog installed at one side of the rotating roller. It is characterized by including.

The control means includes a power supply unit for supplying power to the meander detection device and the meander prevention device, an input unit for receiving various operation commands for operating the meander prevention device, and a memory for storing various programs for controlling the driving of the drive unit. And a controller configured to control driving of the driving unit based on a detection signal of the meandering sensing device or a command input through an input unit using a program stored in the memory in advance.

The meandering prevention roller part may be provided on an upper portion of the base frame installed at a predetermined interval in a direction orthogonal to the conveying direction of the belt on a mounting table, and may be horizontally rotated about the rotating shaft on an upper end of the rotating shaft provided on the rotating shaft part. It is characterized in that it comprises a rotary frame and a roller unit which is installed on the rotary frame to rotate in accordance with the meandering direction of the belt or the driving of the drive unit.

The rotating shaft may include a case for shielding an outer circumferential surface of the rotating shaft, a bearing member provided between the rotating shaft and the case, an upper cover for shielding an upper portion of the space between the rotating shaft and the case, a cap for shielding a lower portion of the space between the rotating shaft and the case; It characterized in that it comprises a lower cover for shielding the lower end of the case.

The rotation frame is characterized in that the horizontal movement free rotation by a predetermined angle in accordance with the meandering direction when the meandering of the belt.

The roller unit is coupled to a pair of support plates spaced at regular intervals in the upper space of the rotating frame to rotate the idler to rotate during the conveying operation of the belt, the first and second brackets which are inclined on both sides of the idler, respectively First and second meandering rollers which are coupled to the shaft and rotated during the conveying operation of the belt, and are installed on the outer bottom surface of the first and second brackets to support the first and second meandering rollers in an inclined manner. It characterized in that it comprises two support means.

The first and second supporting means is characterized in that the height is adjustable to adjust the inclination angle of the first and second meander prevention rollers.

First and second sliding parts that contact the lower surfaces of the first and second brackets on the first and second support means to support the first and second brackets in a rotatable manner during the rotational movement of the rotating frame. The plate is installed to be inclined, and the first and second sliding plates are formed in a concave curved surface.

The driving unit is a motor driven according to the control of the control means, a deceleration means for reducing the rotational speed of the motor, a switching unit for converting the rotational movement of the deceleration means into a linear reciprocating motion and one side of the pair of anti-meander rollers It characterized in that it comprises a moving plate for connecting the ends and the linear reciprocating motion with the switching unit to rotate the pair of anti-meander roller parts about each of the rotation axis.

The driving unit is a motor driven according to a control signal of the control means, a deceleration means for reducing the rotational speed of the motor, a rotating plate installed on the deceleration means and one end is coupled to the rotating plate and the other end is prevented from meandering It is axially coupled to the rotating frame of the roller portion, characterized in that it comprises a connecting bar for rotating the rotating frame in accordance with the rotational movement of the rotating plate.

The driving unit is characterized in that it further comprises a link arm for each of the meandering roller unit is installed to connect the adjacent rotating frame to each other.

The deceleration means is a worm reducer that reduces the rotational speed of the motor by using a worm wheel coupled with a screw-type worm coupled to the drive shaft of the motor to minimize the backlash generated when the motor is stopped. It is characterized in that the horizontal rack jack (Rack Jack) unit for converting the rotational movement of the deceleration means into a linear reciprocating motion using a rack gear coupled to the pinion gear installed on the output shaft of the.

The driving unit further includes a moving plate detecting unit for detecting a position of the moving plate, and the control unit calculates the position of the moving plate according to a detection signal of the moving plate detecting unit to adjust the moving distance of the moving plate. It is characterized by controlling the driving of.

The moving plate detector may include a reduction gear for reducing the rotational speed of the reduction shaft and an encoder for measuring a rotation angle displacement of the reduction gear and transmitting the measured signal to the controller.

The input unit includes a mode selection switch for selecting an operation mode of the meandering prevention device, and the control unit is based on a sensing signal of the meandering detection device or an operation command input through the input unit according to an operation mode of the mode selection switch. By controlling the driving of the drive unit.

As described above, the present invention detects the feeding speed of the belt, the feeding direction and the amount of meandering when the belt meander occurs using the meandering detection device, and horizontally rotates at least one meandering prevention roller part provided in the meandering prevention device according to the detection result. By movement, the belt can be quickly returned to its original position.

That is, the present invention can accurately calculate the meandering amount of the belt by sensing the rotation angle of the rotary arm by using the encoder unit as the sensing rollers installed on both sides of the belt rotate while contacting the belt.

In the present invention, when the meandering of the belt occurs, the rotating frame disposed in a direction orthogonal to the conveying direction of the belt rotates about the rotation axis so that the belt and the rotating frame are always perpendicular to each other, so that the belt can be quickly returned to its original position. have.

Particularly, the present invention detects whether or not a meander occurs by using a plurality of meander detection units installed at predetermined intervals on both sides, and simultaneously rotates the meander prevention rollers provided at the rear of each meander detection unit to return the meandered belt more quickly. It has an effect that can be done.

In addition, the present invention by using a horizontal rack jack unit or a rotating plate provided in the drive unit to convert the rotational motion of the motor into a linear motion can be rotated at least one meandering roller part at the same time.

In another aspect, the present invention by using a plurality of rollers provided in at least one of the anti-memory roller unit by dividing and supporting the weight of the belt and the conveyed material to be transported seated on the top of the belt to the contact friction between the belt and the roller and the rotational force of the roller Guided in a perpendicular direction, the meandered belt can be quickly returned to its original position.

In addition, the present invention can accurately control the moving distance of the moving plate due to the meandering of the belt by accurately calculating the position of the moving plate for horizontal rotation movement at the same time by connecting at least one meandering roller in accordance with the detection signal of the moving plate detection unit Can be.

In addition, according to the present invention, at least one meandering roller part is freely rotated by a predetermined angle in the front and rear direction irrespective of driving of the driving unit, so that even when minute meandering of the belt occurs regardless of the operation mode selected by the mode selection switch. The belt can be returned to its original position to prevent meandering of the belt.

As a result, the present invention has the effect of smoothly transporting the conveyed material to improve the workability of the conveyed material conveying operation, and to prevent the fall due to the flow and meandering of the belt during conveyance of the conveyed material to improve the economics.

1 is a block diagram of a belt conveyor system having a meandering prevention device according to the prior art,
Figure 2 is a perspective view of the meandering prevention device shown in Figure 1,
3 is a perspective view of a belt conveyor system having a meandering prevention device according to an embodiment of the present invention,
4 is a cross-sectional view of the meander detection unit shown in FIG. 3;
5 is a perspective view of the belt detection unit and the meandering prevention device shown in FIG.
Figure 6 is a side view of the belt detecting unit shown in FIG.
7 is a block diagram of the meandering prevention device shown in FIG.
8 is a front sectional view of the meandering prevention roller unit shown in FIG. 7;
9 is a side view of the driving unit shown in FIG. 7;
10 is a plan view of the driving unit shown in FIG.
11 is a flowchart illustrating a step-by-step control method of the belt conveyor system having a meandering prevention device according to an embodiment of the present invention;
12 and 13 is a state diagram illustrating the meander detection operation and the meandering prevention operation when the meandering of the belt in the belt conveyor system having a meandering prevention device shown in Fig. 11,
14 is a front view of a meandering prevention device applied to a belt conveyor system having a meandering prevention device according to another embodiment of the present invention;
15 is a plan view of the meander prevention roller and the driving unit shown in FIG.
FIG. 16 is a side view of the meandering roller part and the driving part shown in FIG. 14;
17 and 18 is an operation state diagram for rotating the plurality of meandering prevention roller unit using a link in the belt conveyor system having a meandering prevention device according to another embodiment of the present invention.

Hereinafter, a belt conveyor system having a meandering prevention device according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 is a perspective view of a belt conveyor system having a meandering prevention device according to a preferred embodiment of the present invention, Figure 4 is a cross-sectional view of the meander detection unit shown in Figure 3, Figure 5 is a belt detection unit shown in Figure 3 and 6 is a perspective view of a meandering prevention device, and FIG. 6 is a side view of the belt detecting unit shown in FIG. 5.

And Figure 7 is a block diagram of the meandering prevention device shown in Figure 5, Figure 8 is a front sectional view of the meandering prevention roller part shown in Figure 7, Figure 9 is a side view of the drive unit shown in Figure 7, Figure 10 9 is a plan view of the driving unit illustrated in FIG. 9.

Belt conveyor system (hereinafter, abbreviated as 'conveyor system') 20 having a meandering device according to a preferred embodiment of the present invention, as shown in FIG. Drive roller 22, which is installed in close proximity and driven by the drive of motor 21, driven roller 23, drive roller 22, and driven rollers that are rotatably installed in a position to convey the conveyed object ( The belt 24 connecting the 23, the meander detection device 30 for detecting the feed speed, the feed direction and the amount of meandering of the belt 24 when the meandering of the belt 24 occurs, and the driving roller 22 and the driven roller 23 Meandering prevention device 40 is installed at a predetermined interval between) to prevent the meandering by quickly returning the belt 24 to its original position when the meandering of the belt 24 occurs based on the detection signal of the meander detecting unit 30. ).

The motor 21 is installed at one end of the mounting table 25 and is driven by a control signal and a power applied from a main controller (not shown).

As shown in FIG. 3, the meander detecting device 30 is installed at predetermined intervals on both sides of the belt 24 by a predetermined distance, and meander detecting unit detecting whether the meandering occurs and the amount of meandering of the belt 24. 31 and the belt detecting unit 32 installed at the front end of the meandering prevention device 40 to detect the conveying speed and the conveying direction of the belt 24.

As shown in FIG. 4, the meander detection unit 31 has a sensing roller 33 rotating in contact with the belt 24 when the meandering of the belt 24 occurs, and a sensing roller 33 is axially coupled to an upper surface of one end thereof. Detect the rotation angle of the rotary arm 34 and the rotary shaft module 35 and the rotary shaft module 35, the rotary shaft 351 is provided so that the rotary arm 34 is coupled to the upper surface, the rotary arm 34 is provided to enable the rotary movement around the other end An encoder unit 36 is included.

The upper and lower portions of the space between the inner circumferential surface of the sensing roller 33 and the roller shaft 331 are provided with a pair of ball bearings 332 to smoothly rotate the sensing roller 33, and an upper portion of the pair of ball bearings 332. The snap ring 333 is provided on the ball bearing 332 located above.

In addition, the upper end of the sensing roller 33 is coupled to the roller cover 334 for shielding the upper surface of the sensing roller 33 and the roller shaft 332.

Here, the roller shaft 331 is threaded on the lower outer peripheral surface is coupled through the coupling hole formed in the vertical direction on one side of the rotary arm 34, and then fixed using a nut.

Rotating arm 34 is formed in a bar shape, the coupling hole is coupled to the rotary shaft 351 of the rotary shaft module 35 and the roller shaft 31 of the sensing roller 33 on both ends of the rotary arm 34, respectively. It is formed by penetrating through.

The rotary shaft module 35 includes a case 352 to which the rotary shaft 351 is coupled at the center, a bearing member 353 installed between the inner circumferential surface of the case 352 and the outer surface of the rotary shaft 351, the case 352, and the rotary arm. The stopper 355 is installed on the upper surface of the elastic member 354 and the case 352 between the 34 to limit the rotational direction of the rotary arm 34.

The case 352 is formed in a substantially cylindrical shape in which an insertion space is provided to allow the rotation shaft 351 to be inserted therein. The case 352 is fixed to the mounting frame 26 extending from the mounting table 25 toward both sides of the belt 24 by a joining operation such as welding.

Here, lubrication means such as oil or grease is injected between the case 352 and the rotation shaft 351 so that the rotation shaft 351 and the bearing member 353 can rotate smoothly.

A pair of oil chambers 356 are provided at upper and lower ends of the inner circumferential surface of the case 352 to prevent foreign substances from flowing into the case 352 through a gap between the rotation shaft 351 and the case 352, respectively.

In addition, an oil chamber 356 located above the outer circumferential surface of the rotation shaft 351 is disposed at an upper portion of the distance 357 and the pair of oil chambers 356 for maintaining a constant distance between the rotation shaft 351 and the case 352. A snap ring 358 is provided at a position corresponding to the lower end of the rotation shaft 351 to prevent the rotation shaft 351 from being separated from the case 352.

To this end, it is preferable that a coupling groove to which the snap ring 358 is coupled is formed on the inner circumferential surface of the case 352.

The bearing member 353 includes a pair of ball bearings and one thrust bearing provided between the outer circumferential surface of the rotating shaft 351 and the inner circumferential surface of the case 352 so that the rotating shaft 351 rotates smoothly.

The elastic member 354 guides the rotary arm 34 to be always at a preset setting position, and serves to maintain the state in which the sensing roller 33 is in close contact with the belt 24 when the belt 24 meanders. .

To this end, the elastic member 354 is provided with a coil spring for providing a restoring force to the rotary arm 34, the upper end of the elastic member 354 is supported on the side of the rotary arm 34, The lower end is supported by the stopper 355.

The stopper 355 protrudes upward on the upper surface of the case 352 to guide the standby position of the rotary arm 34, and serves to prevent reverse rotation.

The encoder unit 36 is coupled to the lower portion of the rotary shaft 351 to sense the rotation position of the rotary shaft 351, and transmits the detection signal to the control means 43 of the meander prevention device 40 to be described below.

Accordingly, the present invention can accurately calculate the meandering amount of the belt by detecting the rotation angle of the rotary arm using the encoder unit as the sensing rollers installed on both sides of the belt rotate while being in contact with the belt.

5 and 6, the belt detecting unit 32 is installed at 90 ° angles to one side of the rotating roller 37 and the rotating roller 37 which rotate in contact with the lower surface of the belt 24. First and second proximity sensors 38 and 39 are provided.

The rotary roller 37 is axially coupled to the pair of support members installed in the vertical direction at the front end of the meandering prevention device 40 and rotates according to the movement of the belt 24.

One side of the rotary roller 37 is provided with a sensing dog 371 at a position eccentric from the rotating shaft.

The first and second proximity sensors 38 and 39 are disposed at 90 ° angles to one side of the rotary roller 37 to sense the sensing dog 371.

The first and second proximity sensors 38 and 39 detect whether the sensing dog 371 approaches the rotation of the rotary roller 37.

The first and second proximity sensors 38 and 39 are a high frequency oscillation type for detecting a change in the impedance of the oscillation coil of the high frequency oscillation circuit according to the approach of the sensing dog, a magnetic type using the suction force of the magnet, and a single side impedance of the bridge circuit. It may be provided with various types of proximity sensors, such as a flow bridge type for detecting a change.

Accordingly, the present invention can accurately calculate the conveying speed of the belt using the number of times of detection of the first and second proximity sensors by the rotation of the sensing dog provided in the belt detecting unit.

In addition, the present invention can accurately determine the conveying direction of the belt by determining the detection and release time of the first and second proximity sensors.

As shown in FIG. 5, the meandering prevention device 40 includes a plurality of base frames 27 installed along the belt 24 in a direction orthogonal to the conveying direction of the belt 24 at regular intervals along the belt 24. It is installed at the top, respectively.

As shown in FIGS. 5 and 7, the meandering prevention device 40 is installed at a lower portion of the belt 24 at right angles to the conveying direction, and has a pair of meandering preventing roller portions 41 for guiding the belt 24. Drive unit based on the detection signal of the drive unit 42 and the meander detecting device 30 for generating a driving force to simultaneously horizontally rotate the pair of anti- meandering roller unit 41 in the meandering direction when the belt 24 is meandered. Control means 43 for controlling the driving of the 42;

That is, according to the present invention, the pair of meandering roller parts are disposed at regular intervals and simultaneously rotated horizontally so that the belt can be quickly returned to its original position when the meandering of the belt occurs.

In particular, the present invention by using a plurality of rollers provided in a pair of anti-rolling roller portion divided by the weight of the belt and the conveyed material to be transported seated on the top of the belt to support the contact friction between the belt and the roller and the rotational force of the roller The meandered belt can be quickly returned to its original position by guiding in the direction perpendicular to the axis.

As shown in FIG. 7, the control means 43 operates variously to operate the power supply unit 44 and the meandering prevention device 40 for supplying power to the meandering detection device 30 and the meandering prevention device 40. Controls the driving of the control unit 46 and the driving unit 42 which controls the driving of the driving unit 42 based on the input unit 45 receiving the command, the sensing signal of the meander detecting device 30 or the command input through the input unit. And a memory 47 for storing various programs.

The input unit 45 selects an automatic mode for driving the meandering device 40 according to the detection signal of the meandering detection device 30 and a manual mode for driving the meandering device 40 according to an operation command according to a manager's operation. It is preferable to have a mode selection switch.

The controller 46 is provided in the driving unit 42 based on the feed speed, the feeding direction and the amount of meandering of the belt 24 according to the detection signal of the meandering sensing device 30 using a program stored in the memory 47 in advance. The drive direction of the drive part 42 is controlled by calculating the rotation direction and the rotation amount of the motor 61 (refer FIG. 9).

Accordingly, the present invention can precisely control the driving of the meander prevention device according to the conveying speed, the conveying direction and the amount of meandering of the belt detected by the meandering sensing device, so that the meandering belt can be quickly returned to its original position when the meandering occurs. .

Such control means 43 may be mounted inside a control box (not shown) installed on one side of the mounting table 25 or may serve as a main control part of the conveyor system 20.

For example, the control means 43 may be communicatively connected with each device of the meander detecting device 30 and the meander preventing device 40 using a power line communication method or a serial interface such as RS-232. Can be.

As shown in FIGS. 5 and 8, the meandering prevention roller part 41 includes a rotating shaft 51 provided on an upper portion of the base frame 27 and a rotating shaft 511 on an upper end of the rotating shaft 511 of the rotating shaft 51. The roller unit 53 is installed on the rotating frame 52 and the upper portion of the rotating frame 52 so as to be horizontally rotatable about the rotation, and rotate along the conveying direction of the belt 24 to guide the belt 24. It includes.

As shown in FIG. 8, the rotating shaft part 51 includes a rotating shaft 511 installed in the up and down direction on the base frame 27, a case 512 shielding the outer circumferential surface of the rotating shaft 511, a rotating shaft 511 and a case. The upper cover 514 for shielding the upper portion of the space between the bearing member 513, the rotating shaft 511 and the case 512 provided between the 512, and shields the lower portion of the space between the rotating shaft 511 and the case 512 And a lower cover 516 shielding a lower end of the cap 515 and the case 512.

The rotating shaft 511 is inserted into the case 512 and freely rotates inside the case 512 by the bearing member 513.

Accordingly, the rotating frame 52 coupled to the central portion of the rotating shaft 511 also rotates about the rotating shaft 511.

The case 512 is formed in a substantially cylindrical shape in which an insertion space is provided to allow the rotation shaft 511 to be inserted therein. The case 512 is fixed to the base frame 27 by a joining operation such as welding.

Here, lubrication means such as oil or grease is injected between the case 512 and the rotation shaft 511 so that the rotation shaft 511 and the bearing member 513 rotate smoothly.

The bearing member 513 includes a pair of ball bearings and roller bearings provided to contact the outer circumferential surface of the rotating shaft 511 and the inner circumferential surface of the case 512, respectively.

The pair of ball bearings are coupled to positions spaced apart by a predetermined interval from the upper and lower ends of the rotating shaft 511 toward the center, respectively.

Here, the roller bearing is preferably provided as a taper roller bearing (taper roller bearing) to support the axial load applied from the rotating frame 52 coupled to the upper end of the rotating shaft.

The upper cover 514 serves to prevent dust or foreign matter from flowing into the case 512 through a gap between the case 512 and the rotation shaft 511.

And the inner circumferential surface of the upper cover 514 is formed with a ring groove so that the oil ring is coupled.

Cap 515 is coupled to the lower end of the rotary shaft 511 serves to fix the ball bearing coupled to the lower rotary shaft 511.

To this end, the cap 515 is formed in a substantially cylindrical shape with an upper opening, and the lower end of the rotating shaft 511 is coupled to a space formed inside the cap 515.

The cap 515 is fixed to the lower end of the rotation shaft 511 by a fixing means such as a bolt.

The lower cover 516 serves to shield the lower portion of the space between the rotation shaft 511 and the case 512.

To this end, the lower cover 515 is formed in a cylindrical shape with an upper opening so that a space in which the cap 515, oil or grease is injected, is formed therein.

The lower cover 515 is fixed to the bottom of the case 512 by fixing means such as bolts.

Accordingly, in the present invention, when the meandering of the belt occurs, the rotating frame disposed in a direction orthogonal to the conveying direction of the belt rotates about the rotational axis so that the belt and the rotating frame are always orthogonal, so that the belt can be quickly returned to its original position. Can be returned.

As shown in FIGS. 5 and 8, the rotation frame 52 is formed in a rectangular shape having a length longer than that of a width and opening upward, and the upper portion of the belt 24 on the top of the rotation shaft 511 of the rotation shaft portion 51. It is coupled to be orthogonal to the conveying direction and rotates horizontally about the rotation axis 511.

In this case, the rotating frame 52 may be freely rotated by up to 2 ° and 4 ° in the front and rear direction, respectively, regardless of the drive of the driving unit 42 in preparation for the minute meandering of the belt 24. ) May be combined.

The roller portion 53 is axially coupled to a pair of support plates spaced at regular intervals in the upper space of the rotating frame 52 to rotate during the feeding operation of the belt 24, both sides of the idler 54, idler 54 First and second meander prevention rollers 55 and 56 that are axially coupled to the first and second brackets 551 and 561 that are installed to be inclined to the belt 24 to rotate during the conveying operation of the belt 24, and the first and second brackets 515 and 561. The first and second support means (57, 58) installed on the outer lower surface for supporting the first and second meander prevention rollers (55, 56) inclined respectively.

The first and second brackets 551 and 561 are formed to have a substantially '∪' shape in cross section and are hinged to both inner surfaces of the rotating frame 52.

Accordingly, the first and second brackets 551 and 561 may be rotated about the hinge axis to adjust the inclination angle.

Coupling holes are formed on both side surfaces of the first and second brackets 551 and 561 so that both ends of the shafts of the first and second meander prevention rollers 55 and 56 are coupled to each other.

The first and second support means 57 and 58 are coupled to the upper surface of the base frame 27, and the lower surfaces of the first and second brackets 551 and 561 are disposed on the upper surfaces of the first and second support means 57 and 58. The first and second sliding plates 571 and 581 are installed to support the first and second brackets 551 and 561 so as to be slidably rotatable during the rotational movement of the rotary frame 52.

The first and second sliding plates 571 and 581 are formed to have a length longer than the maximum rotation distance when the first and second brackets 551 and 561 rotate, and are inclined to correspond to the first and second brackets 551 and 561.

In particular, the first and second sliding plates 571 and 581 are formed into a concave curved surface when the front and rear ends are bent toward the belt 24 and viewed from the upper side.

Accordingly, the present invention smoothly slides the first and second brackets 551 and 561 along the concave upper surfaces of the first and second sliding plates 571 and 581 during the rotational movement of the meandering prevention roller part 41. When the meander occurs, the efficiency of the operation of returning the belt 24 to its original position can be improved.

On the other hand, the first and second support means (57, 58) is adjustable in height by using a cylinder or gear member driven by pneumatic or hydraulic pressure to adjust the inclination angle of the pair of anti- meandering rollers (55, 56) It may be provided.

As shown in FIGS. 9 and 10, the driving unit 42 includes a motor 61 driven according to a control signal of the controller 46, a deceleration means 62 for decelerating the rotational speed of the motor 61, and a deceleration means. A pair of meanders is connected by connecting one end of the switching unit 63 and the pair of meandering prevention roller portions 41 for converting the rotational movement of the 62 into a linear reciprocating motion, and linearly reciprocating with the switching unit 63. Each of the prevention roller parts 41 includes a moving plate 64 that rotates about the rotation shaft part 51.

The reduction means 62 is a worm reducer that reduces the rotation speed of the motor 61 by using a worm wheel coupled with a screw worm coupled to the drive shaft of the motor 61 to minimize the backlash generated when the motor 61 is stopped. It is provided with.

The switching unit 63 is provided as a horizontal rack jack unit for converting the rotational motion of the speed reduction means 62 into a linear reciprocating motion by using a rack gear coupled to a pinion gear installed on the output shaft of the speed reduction means 62. .

In this embodiment, the conversion unit 63 is provided with a total length of 300mm, including a front movement distance 100mm, a rear movement distance 100mm and a preliminary length 100mm.

Accordingly, the roller portion 53 is horizontally rotated by a maximum of 8 degrees and a total of 16 degrees in the front and rear directions, respectively.

The moving plate 64 rotates the pair of meandering prevention roller portions 41 about the rotation shaft 511 while moving in the front-rear direction by the linear reciprocating motion of the switching unit 63.

Accordingly, the present invention can quickly return the belt to its original position by simultaneously rotating a pair of anti-meander rollers installed at regular intervals when the belt meanders.

Meanwhile, as shown in FIG. 10, a moving plate detector 65 that detects a position of the moving plate 64 is provided at one side of the driving unit 42.

The moving plate detecting unit 65 measures the rotation angle displacement of the reduction gear 651 and the reduction gear 651 to reduce the output shaft rotation speed of the reduction means 62, and transmits the measured signal to the controller 46. 652.

The reduction gear 651 is engaged with the first reduction gear 62 on the first reduction gear installed on the output shaft of the reduction means 62 and the input shaft of the encoder 652 to reduce the rotation speed of the reduction means 62. A second reduction gear is provided.

For example, when the output shaft of the deceleration means 62 moves the movable plate 64 to the maximum, the first reduction gear is set to 1 so that the input shaft of the encoder 652 rotates one rotation or less in accordance with the rotation of the output shaft. It has a reduction ratio of * 20t, and the second reduction gear has a reduction ratio of 1 * 50t.

Accordingly, the present invention accurately calculates the position of the moving plate for horizontal rotational movement by connecting a pair of anti-rolling roller parts according to the detection signal of the moving plate detecting unit to accurately calculate the moving distance of the moving plate due to the meandering of the belt. Can be controlled.

Next, with reference to Figures 11 to 13 will be described in detail a control method of the belt conveyor system having a meandering prevention apparatus according to a preferred embodiment of the present invention.

11 is a flowchart illustrating a step-by-step control method of the belt conveyor system having a meandering prevention device according to an embodiment of the present invention, Figures 12 and 13 are meandering of the belt in the belt conveyor system having a meandering prevention device. This is a state diagram illustrating the meandering detection operation and the meandering prevention operation when occurring.

12 illustrates a state in which the belt meanders in the right direction, and FIG. 13 illustrates a state in which the belt meanders to the left.

The control method of the belt conveyor system having a meandering prevention device according to a preferred embodiment of the present invention starts with the motor 21 receiving the power and the control signal from the main control unit is driven (S10).

Then, the driving roller 22 is rotated by the driving force of the motor 21, the idler 54 provided in the belt 24, the meandering prevention device 40, the first and second meandering prevention rollers 55, 56, and the driven The roller 23 rotates, and the conveyed object loaded on the belt 24 can be conveyed to a desired position (S11).

In operation S12, the controller 46 determines whether the mode selection switch provided in the input unit 45 is selected as the automatic mode.

As a result of the inspection, when the automatic mode is selected, the power supply unit 44 applies power to each device of the meander detection device 30 and the meander prevention device 40 according to the control signal of the controller 46.

Then, the belt detection unit 32 of the meander detection device 30 uses the first and second proximity sensors 38 and 39 as the rotary roller 37 rotates in contact with the belt 24. Continuously detects the feed rate and the feed direction of the transfer the detection signal to the controller 46 (S13).

In addition, the pair of meander detection units 31 provided in the meander detection device 30 detects whether or not a meander occurs in the belt 24.

If meandering occurs while the belt 24 is inclined to one side during conveyance of the conveyed material (S14), the sensing roller 33 and the belt 24 of the meander detecting unit 31 provided on the inclined side of the belt 24 are inclined. The rotary arm 34 is rotated while contacting.

Then, the encoder unit 36 of the meander detection unit 31 detects the rotation angle of the rotary shaft module 35 and transmits a detection signal to the controller. At this time, the elastic member 355 of the meander detection unit 31 provides a restoring force to the rotary arm 34 to maintain the state in which the sensing roller 33 is in contact with the belt 24.

Accordingly, the control unit 46 calculates the meandering amount of the belt according to the detection signal transmitted from the meandering detecting unit 31 (S15), and transmits the meandering amount of the calculated belt 24 and the belt detecting unit 32. On the basis of the conveying speed and the conveying direction of the belt 24, a control signal for controlling the drive of the meandering prevention device 40 located on the rear side of the meander detecting device 30 is generated (S16).

Thus, the motor 61 of the meandering prevention device 40 is driven in one direction according to the control signal of the control unit 46, the deceleration means 62 decelerates the rotation speed of the motor 61, and the switching unit 63 2 converts the rotational movement of the deceleration means 62 into a linear reciprocating motion to move the moving plate 64.

Accordingly, the pair of meandering prevention rollers 41 provided in the meandering prevention device 40 are horizontally rotated to prevent meandering (S17).

In this way, the present invention by previously driving the drive unit of the meandering prevention device located on the rear side of the meandering detection device according to the meandering detection result of the meandering detection device by horizontally rotating the pair of meandering detection rollers provided on the rear side of the meandering detection device in advance. The belt can be quickly returned to its original position.

For example, as shown in FIG. 12, when meandering occurs while the belt 24 is inclined to the right side, the meander detecting unit 31 provided on the right side of the belt 24 has the sensing roller 33 as the belt 24. As the rotary arm 34 rotates while being in contact with), the encoder unit 36 detects a rotation angle of the rotary shaft 351 coupled with the rotary arm 34.

Then, the control part 46 calculates the meandering amount of the belt 24 according to the detection signal of the encoder unit 36, and saw the moving plate 61 which connects a pair of meander prevention roller parts 41 in FIG. At this time, the drive of the motor 61 provided in the drive part 42 is controlled to move linearly toward the front.

Accordingly, the pair of anti- meandering roller portions 41 respectively rotate horizontally in the counterclockwise direction to prevent meandering of the belt 24.

At this time, the movable plate 64 is linearly moved forward by up to about 100 mm, and the pair of anti-meander roller parts 41 each rotate horizontally in the counterclockwise direction by up to about 8 °.

On the other hand, as shown in FIG. 13, when meandering occurs while the belt 24 is inclined to the left side, the meander detecting unit 31 provided on the left side of the belt 24 has the sensing roller 33 and the belt 24. As the rotary arm 34 rotates while contacting, the encoder unit 36 detects a rotation angle of the rotary shaft 351 coupled with the rotary arm 34.

Then, the control part 46 calculates the meandering amount of the belt 24 according to the detection signal of the encoder unit 36, and saw the moving plate 61 which connects a pair of meander prevention roller parts 41 in FIG. At this time, the driving of the motor 61 provided in the driving unit 42 is controlled to move linearly toward the rear side.

Accordingly, the pair of meandering prevention rollers 41 prevent the meandering of the belt 24 by horizontally rotating the clockwise direction, respectively.

At this time, the movable plate 64 is linearly moved backward by up to about 100 mm, and the pair of anti-meander roller parts 41 each rotate horizontally in a clockwise direction by up to about 8 °.

In step S18, the control unit 46 checks whether the belt 24 is returned to its original position using the detection signal of the meander detection unit 31, and in step S15 until the belt 24 is returned to the original position. To control to repeat step S18.

As a result of the inspection in step S18, when the belt 24 is returned to its original position, the control unit 46 checks whether or not the driving stop command is input by operating the power switch provided in the input unit 45, and the driving stop command is input. It is controlled to repeat the steps S12 to S19 until the.

If, as a result of the check in step S19, when the driving stop command is input through the input unit 45, the control unit 46 to cut off the power supplied to the meander detection device 30 and the meander prevention device 40, the power supply unit 44 ) And ends (S20).

On the other hand, when the manual mode is selected in step S12, the control unit 46 may prevent the meandering of the belt 24 by controlling the driving of the meander prevention device 40 according to the operation command input through the input unit 45. (S21).

On the other hand, the meandering prevention roller part 41 is installed to be capable of horizontal rotational movement in the front-rear direction irrespective of the driving of the driving unit 42 in preparation for the minute meandering of the belt 24.

Accordingly, the present invention can prevent the fine meandering of the belt by horizontally rotating the pair of anti- meandering roller portions by a predetermined angle, for example, up to 4 °, regardless of the operation mode selected by the mode selection switch.

Through the above-described process, the present invention detects whether the meandering of the belt occurs, and when the meandering occurs, by horizontally rotating the at least one meandering prevention roller part provided in the meandering prevention device in advance to return the belt to its original position quickly. You can.

On the other hand, in the present embodiment has been described as a pair of anti- meandering roller portion provided in the meandering prevention device at the same time to rotate horizontally, the present invention is not necessarily limited thereto.

That is, the present invention may be modified to have one meandering prevention roller part or three or more meandering prevention roller parts at the same time in accordance with the shape, weight, size of the load to be transported.

In addition, in the present embodiment has been described as having a switching unit provided as a horizontal rack jack unit to rotate the meandering prevention roller portion in the drive unit of the meandering prevention device, the present invention is not necessarily limited thereto.

That is, the present invention can be modified to apply a variety of drive unit to the configuration for rotating the meander prevention roller portion.

For example, with reference to Figures 14 to 16 will be described in detail a belt conveyor system having a meandering prevention device according to another embodiment of the present invention.

14 is a front view of a meandering prevention device applied to a belt conveyor system having a meandering prevention device according to another embodiment of the present invention, FIG. 15 is a plan view of a meandering prevention roller part and a driving part shown in FIG. 14, and FIG. 16. 14 is a side view of the meandering prevention roller unit and the driving unit shown in FIG. 14.

The belt conveyor system provided with the meandering prevention device according to another embodiment of the present invention is similar to the configuration of the belt conveyor system provided with the meandering prevention device described in the above embodiment, except that the configuration of the driving unit provided in the meandering preventing device is different. There is.

As shown in FIGS. 14 to 16, the driving unit 42 includes a motor 61 driven according to a control signal of the controller 46, a deceleration means 62 for decelerating the rotational speed of the motor 61, and a deceleration means. Rotating plate 66 and one end of which is installed at the upper portion of the rotating shaft 62 and the one end is axially coupled to the rotating plate 66 and the other end is axially coupled to the rotating frame 52 of the meander prevention roller portion 41 of the rotating plate 66 It includes a connecting bar 67 for rotating the rotating frame 52 in accordance with the rotational movement.

Here, the motor 61 and the deceleration means 62 are installed on the mounting table 25, and the rotating plate 66 rotates by the transmitted rotational force decelerated from the deceleration means 62.

As the connecting bar 67 is axially coupled to the upper surface of the rotating plate 66 and the rotating frame 52, respectively, the connecting bar 67 moves one end of the rotating frame 52 in the front-rear direction while cam-moving by the rotation of the rotating plate 66. By rotating the rotation frame 52 and the meander prevention roller portion 41 about the rotation shaft portion 51 to rotate.

16, the link arm 68 is axially coupled to one end of the rotating frame 52 to simultaneously horizontally rotate a pair of neighboring anti-meander roller parts 41.

Accordingly, in the present invention, the link arms are connected between a pair of rotating frames adjacent to each other, and by rotating only one anti-meandering roller unit using a driving unit, two or more anti-meandering roller units can be horizontally rotated at the same time.

For example, Figures 17 and 18 is an operating state diagram for rotating the plurality of meandering prevention roller unit using a link arm in a belt conveyor system having a meandering prevention device according to another embodiment of the present invention.

That is, in FIG. 17, three meandering roller parts 41 are connected to the link arm 68 to simultaneously rotate, and in FIG. 18, four meandering roller parts 41 are respectively shown in the link arm. It is shown that the operating state of the 68 connected to the rotational motion at the same time.

Of course, the present invention may be connected to the five or more meandering roller portion 41 by the link arm 68 to rotate at the same time.

Through the process as described above, the present invention converts the rotational motion of the motor to the cam motion to move one end of the rotating frame back and forth by simultaneously rotating the two or more meandering roller portion connected to one anti-memory roller or link arm The meandering of the belt can be prevented.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

The present invention is applied to a technology for detecting the occurrence of the meandering of the belt in the belt conveyor system, and when the meandering occurs, by horizontally rotating the at least one meandering prevention roller unit provided in the meandering prevention device in advance to return the belt to its original position. do.

20: belt conveyor system 21: motor
22: driven roller 23: driven roller
24: belt 25: mount
26: installation frame 27: base frame
30: meander detection device 31: meander detection unit
32: belt detection unit 33: the sensing roller
331: roller shaft 332: ball bearing
333: snap ring 334: roller cover
34: rotary arm 35: rotary shaft module
351: axis of rotation 352: case
353: bearing member 354: elastic member
355: stopper 356: oil seal
357: distancer 358: snap ring
36: encoder unit 37: rotary roller
371: sensing dog 38, 39: first and second proximity sensor
40: meandering prevention device 41: meandering prevention roller part
42: drive unit 43: control means
44: power supply 45: input
46: control unit 47: memory
51: rotating shaft portion 511: rotating shaft
512: case 513: bearing member
514: top cover 515: cap
516: lower cover 52: rotating frame
53: roller 54: idler
55,56: first and second meander prevention rollers 551,561: first and second brackets
57, 58: first and second supporting means 571, 581: first and second sliding plates
61: motor 62: deceleration means
63: switching unit 64: moving plate
65: moving plate detection unit 651: reduction gear
652: encoder 66: rotating plate
67: connecting bar 68: link arm

Claims (18)

A driving roller 22 installed close to the position where the conveyed material to be conveyed is loaded and driven by the driving of the motor 21;
A driven roller 23 rotatably installed in proximity to a position to be conveyed,
Belt 24 for connecting the drive roller 22 and the driven roller 23,
When the meandering of the belt 24 occurs, the meander detection device 30 for detecting the conveying speed, the conveying direction and the amount of meandering of the belt 24 and
Installed at regular intervals between the drive roller 22 and the driven roller 23 to quickly return the belt 24 to its original position upon meandering of the belt 24 based on the detection signal of the meander detection unit 30. It includes a meandering prevention device 40 to return to prevent meandering,
The meandering prevention device 40 is installed at a lower portion of the belt 24 at right angles to the conveying direction to guide at least one meandering roller part 41 to guide the belt 24,
Driving unit 42 for generating a driving force to cause horizontal rotational movement of the at least one meandering prevention roller portion 41 at the same time in the meandering direction of the meandering of the belt 24 and
The rotation direction and the rotation amount of the motor 61 provided in the drive unit 42 are calculated based on the conveying speed, the conveying direction and the meandering amount of the belt 24 according to the detection signal of the meandering detecting device 30. Control means 43 for controlling the drive of the drive unit 42,
The drive unit 42 is a motor 61 driven under the control of the control means 43,
Reduction means 62 for reducing the rotational speed of the motor 61,
Switching unit 63 for converting the rotational motion of the deceleration means 62 into a linear reciprocating motion and
One end of the at least one meandering roller part 41 and the switching unit 63 is connected and linearly reciprocates by the switching unit 63 to respectively rotate the at least one meandering roller part 41 to the rotating shaft part 51. Belt conveyor system having a meandering device, characterized in that it comprises a moving plate (64) for rotational movement to the center. According to claim 1, wherein the meandering detection device 30
A meander detection unit 31 installed at predetermined intervals on both sides of the belt 24 at a predetermined distance and detecting whether the meander occurs and the amount of meandering of the belt 24;
Belt conveyor system having a meandering prevention device, characterized in that it is installed on one end of the meandering prevention device (40) to detect the conveying speed and the conveying direction of the belt (24). According to claim 2, wherein the meander detection unit 31
The sensing roller 33 which rotates in contact with the belt 24 when the meandering of the belt 24 occurs,
Rotating arm 34 is axially coupled to the upper surface of one end and rotatably provided around the other end,
Rotary shaft module 35 is provided with a rotary shaft 351 so that the rotary arm 34 is coupled to the upper surface and
Belt conveyor system having a meandering prevention device, characterized in that it comprises an encoder unit for detecting the rotation angle of the rotary shaft module (35). The method of claim 2, wherein the belt detection unit 32
A rotary roller 37 rotating in contact with the lower surface of the belt 24;
The first and second proximity sensors 38 and 39 are installed at one side of the rotary roller 37 at an angle of 90 ° to detect the sensing dog 371 installed on one side of the rotary roller 37. Belt conveyor system having a meandering device, characterized in that. The method according to claim 1, wherein said control means (43)
A power supply unit 44 for supplying power to the meandering detection device 30 and the meandering prevention device 40;
An input unit 45 for receiving various operation commands for operating the meandering prevention device 40,
A memory 47 for storing various programs for controlling the driving of the driver 42;
The controller 46 controls the driving of the driving unit 42 based on a detection signal of the meandering sensing device 30 or a command input through the input unit 45 using a program stored in the memory 47 in advance. Belt conveyor system having a meandering prevention device comprising a. The method of claim 5, wherein the meandering prevention roller portion 41
Rotating shaft portions 51 which are respectively provided on the mounting table 25, the upper portion of the base frame 27 provided at regular intervals in a direction orthogonal to the conveying direction of the belt 24,
The rotating frame 52 is installed on the rotating shaft 511 provided on the rotating shaft portion 51 so as to be horizontally rotated about the rotating shaft 511.
Belt conveyor with a meandering prevention device is installed on the rotary frame 52 and comprises a roller portion 53 for rotating the belt 24 to guide the belt 24 by rotating along the conveying direction of the belt 24. system. The rotating shaft part 51 is
A case 512 for shielding an outer circumferential surface of the rotation shaft 511,
A bearing member 513 provided between the rotation shaft 511 and the case 512,
An upper cover 514 for shielding an upper portion of a space between the rotation shaft 511 and the case 512,
A cap 515 shielding a lower portion of the space between the rotation shaft 511 and the case 512;
Belt conveyor system with a meandering prevention device, characterized in that it comprises a lower cover for shielding the bottom of the case (512). The method of claim 6, wherein the rotating frame 52
Belt conveyor system having a meandering prevention device, characterized in that the horizontal movement freely rotated by a predetermined angle according to the meandering direction when the meandering of the belt (24) occurs. The method of claim 6, wherein the roller portion 53
Idler 54 which is axially coupled to a pair of support plates spaced at regular intervals in the upper space of the rotating frame 52 to rotate during the transfer operation of the belt 24,
First and second meandering prevention rollers 55 and 56 which are axially coupled to the first and second brackets 551 and 561 which are installed to be inclined at both sides of the idler 54 respectively, and which rotate during the conveying operation of the belt 24;
It is installed on the outer lower surface of the first and second brackets (515,561) includes a first and second support means (57, 58) for supporting the first and second meander prevention rollers (55, 56) inclined, respectively. Belt conveyor system having a meandering device characterized in that. 10. The device of claim 9, wherein the first and second support means (57, 58)
Belt conveyor system having a meandering prevention device, characterized in that the height adjustment is possible to adjust the inclination angle of the first and second meandering prevention rollers (55, 56). 10. The method of claim 9,
Upper portions of the first and second support means 57 and 58 contact the lower surfaces of the first and second brackets 551 and 561 so that the first and second brackets 551 and 561 during the rotational movement of the rotating frame 52. The first and second sliding plates 571 and 581, which are supported in a rotatable manner, are inclinedly installed.
The first and second sliding plates (571,581) is a belt conveyor system having a meandering device, characterized in that formed in a concave curved surface. delete A driving roller 22 installed close to the position where the conveyed material to be conveyed is loaded and driven by the driving of the motor 21;
A driven roller 23 rotatably installed in proximity to a position to be conveyed,
Belt 24 for connecting the drive roller 22 and the driven roller 23,
When the meandering of the belt 24 occurs, the meander detection device 30 for detecting the conveying speed, the conveying direction and the amount of meandering of the belt 24 and
Installed at regular intervals between the drive roller 22 and the driven roller 23 to quickly return the belt 24 to its original position upon meandering of the belt 24 based on the detection signal of the meander detection unit 30. It includes a meandering prevention device 40 to return to prevent meandering,
The meandering prevention device 40 is installed at a lower portion of the belt 24 at right angles to the conveying direction to guide at least one meandering roller part 41 to guide the belt 24,
Driving unit 42 for generating a driving force to cause horizontal rotational movement of the at least one meandering prevention roller portion 41 at the same time in the meandering direction of the meandering of the belt 24 and
The rotation direction and the rotation amount of the motor 61 provided in the drive unit 42 are calculated based on the conveying speed, the conveying direction and the meandering amount of the belt 24 according to the detection signal of the meandering detecting device 30. Control means 43 for controlling the drive of the drive unit 42,
The drive unit 42 is a motor 61 driven according to the control signal of the control means 43,
Reduction means 62 for reducing the rotational speed of the motor 61,
The rotating plate 66 is installed on the deceleration means 62 and rotates.
One end is axially coupled to the rotating plate 66 and the other end is axially coupled to the rotating frame 52 of the meandering prevention roller part 41 to rotate the rotating frame 52 according to the rotational movement of the rotating plate 66. Belt conveyor system having a meandering device, characterized in that it comprises a connecting bar (67). The method of claim 13, wherein the drive unit 42
A belt conveyor system having a meandering prevention device, characterized in that the meandering prevention roller part 41 is further provided and further comprises a link arm 68 for connecting adjacent rotation frames 52 to each other. The method of claim 5,
The deceleration means 62 reduces the rotation speed of the motor 61 by using a worm wheel coupled with a screw worm coupled to the drive shaft of the motor 61 to minimize the backlash generated when the motor 61 is stopped. Is a worm reducer
The switching unit 63 is a horizontal rack jack unit for converting the rotational movement of the speed reduction means 62 into a linear reciprocating motion by using a rack gear coupled to a pinion gear installed on the output shaft of the speed reduction means 62. Belt conveyor system having a meandering device, characterized in that. The method of claim 5,
The driving unit 42 further includes a moving plate detecting unit 65 for detecting a position of the moving plate 64.
The control unit 46 calculates the position of the moving plate 64 according to the detection signal of the moving plate detecting unit 65 to drive the driving unit 42 to adjust the moving distance of the moving plate 64. Belt conveyor system having a meandering device, characterized in that for controlling. The method of claim 16, wherein the moving plate detecting unit 65
A reduction gear 651 for reducing the rotation speed of the output shaft of the reduction means 62;
Belt conveyor system having a meander prevention device characterized in that it comprises an encoder (652) for measuring the rotation angle displacement of the reduction gear (651) and transmits the measured signal to the control unit (46). The method of claim 5,
The input unit 45 is provided with a mode selection switch for selecting the operation mode of the meander prevention device 40,
The controller 46 controls the driving of the driving unit 42 based on a sensing signal of the meander detecting device 30 or an operation command input through the input unit 45 according to the operation mode of the mode selection switch. Belt conveyor system having a meandering device, characterized in that.

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