KR20200125070A - Apparatus for preventing reverse rotation of belt conveyor - Google Patents

Abstract

The present invention relates to an apparatus for preventing reverse rotation of a belt conveyor, which includes: a pulley stop device installed on a rotation pulley of the belt conveyor to be detachable therefrom and attachable thereto, and stopping rotation of the rotation pulley when coming in contact with the rotation pulley; and a pressurizing roller device rotated by being interlocked with movement of the belt conveyor, and pressurizing the pulley stop device to a rotation pulley side when the belt conveyor rotates in reverse.

Description

Reverse rotation prevention device of belt conveyor{APPARATUS FOR PREVENTING REVERSE ROTATION OF BELT CONVEYOR}

The present invention relates to an apparatus for preventing reverse rotation of a belt conveyor, and more particularly, to an apparatus for preventing reverse rotation of a belt conveyor for preventing the belt conveyor from rotating in the reverse direction.

In general, iron ore and coal, which are used as fuel for operating a blast furnace in a steel mill, are transported by ship, unloaded at a dock, and then transported to the factory yard through transport facilities such as a belt conveyor. The fuel loaded on the ship is delivered to the outside of the ship using a bucket attached to an elevator post of a continuous unloading machine, and is delivered to a belt conveyor located under the distribution vehicle along the belt member.

The background technology of the present invention is disclosed in Korean Patent Application Publication No. 2000-0020731 (published on April 15, 2000, title of the invention: a bucket elevator type continuous loading and unloading device).

An embodiment of the present invention is to provide a device for preventing reverse rotation of a belt conveyor capable of preventing a belt conveyor from rotating in a reverse direction due to a tilt of a belt member or a load of fuel.

The device for preventing reverse rotation of a belt conveyor according to the present invention comprises: a pulley stopping device detachably installed on a rotation pulley of the belt conveyor and stopping rotation of the rotation pulley when in contact with the rotation pulley; And a pressure roller device that rotates in association with the movement of the belt conveyor and presses the pulley stop device toward the rotary pulley when the belt conveyor rotates in reverse.

The pulley stopping device includes: a base; A rotation support part installed on the base part and rotated from a first position to a second position; A pulley pressing part connected to an end of the rotation support part and contacting the rotation pulley when the rotation support part rotates to the second position; A roller contact portion coupled to the rotation support portion and in contact with the pressure roller device; And a return support part for elastically pressing the rotation support part to the first position.

The rotation support portion may include a rotation bar extending from the base portion disposed below the return belt portion to an upper side of the return belt portion; A rotation shaft coupled to the base portion and rotatably supporting the rotation bar; And a pressure bar extending from the rotation bar toward the rotation pulley and to which the pulley pressing unit is coupled.

The pulley pressing unit may include a pressing member in frictional contact with the rotation pulley when the rotation support unit is rotated to the second position; A first holding shaft coupled to the rotation support and rotatably supporting the pressing member; A second holding shaft coupled to the pressing member and disposed to be spaced apart from the first holding shaft; And a close contact guide hole formed on the rotation support part and configured to guide the second holding shaft to be movable so that the pressing member is rotatable about the first holding shaft.

The roller contact portion may include a contact bar extending from the rotation support portion toward the pressure roller device; A hopping shaft coupled to the rotation support and supporting the contact bar to be rotatable from a third position to a fourth position; And a flow preventing device for elastically pressing the contact bar to the third position.

The contact bar may include an extension portion extending in a transverse direction and having one end coupled to the hopping shaft; A forward contact part formed under the extension part and in contact with the pressing roller device rotating in a forward direction; And a reverse contact portion disposed at the other end of the extension portion and in contact with the pressing roller device rotating in a reverse direction.

The flow preventing device may include a support bar coupled to the rotation support and disposed above the contact bar; A hanging bar extending downward from the support bar toward the contact bar; A locking means formed under the hanging bar and contacting the contact bar to restrict downward movement of the contact bar; And a flow preventing member comprising an elastic material and pressing the contact bar downward toward the locking means.

The return support portion, a fixed support fixed to the base portion; A guide shaft coupled to the fixed support; A guide bar coupled to the rotation support, extending toward the fixed support, and having a guide hole through which the guide shaft passes; And a return pressing member installed on the guide bar and elastically pressing the rotation support portion to the first position.

The pressure roller device includes a support; A contact roller rotatably installed on the support, in contact with the belt conveyor, and rotated in a forward or reverse direction in association with the movement of the belt conveyor; And protruding from the circumference of the contact roller, contacting the pulley stopping device, pressing the pulley stopping device in a first direction when the contact roller rotates in a forward direction, and pressing the pulley stopping device when rotating in a reverse direction. It characterized in that it comprises a; rotary pressing means for pressing in the second direction toward the rotary pulley.

The rotary pressing means may include a pressing protrusion formed to protrude from a peripheral portion of the contact roller; A hopping pressing unit formed on one side of the pressing protrusions in contact with the pulley stopping device when the contact roller rotates in a forward direction, and forming a curved surface whose protrusion height gradually expands toward an end in a reverse direction; And a stop pressing part formed on the other side of the pressing protrusions that contacts the pulley stopping device when the contact roller rotates in the reverse direction, and presses the pulley stopping device toward the rotation pulley.

The device for preventing reverse rotation of a belt conveyor according to the present invention can prevent the belt conveyor from rotating in the reverse direction by pressing the pulley stop device toward the rotating pulley side using a pressure roller device when the belt conveyor is rotated in reverse.

Accordingly, in the present invention, when the belt conveyor is rotated in the reverse direction due to a load of raw materials acting in a direction that inhibits the forward rotation of the belt conveyor, a malfunction, etc., by restraining the rotation of the rotary pulley, the fuel material moves in the reverse direction. And, it can prevent falling light and safety accidents.

1 is a perspective view schematically showing an installation state of a device for preventing reverse rotation of a belt conveyor according to an embodiment of the present invention.
2 is a perspective view schematically showing an apparatus for preventing reverse rotation of a belt conveyor according to an embodiment of the present invention.
3 is a side view schematically showing an apparatus for preventing reverse rotation of a belt conveyor according to an embodiment of the present invention.
4 is an operational state diagram illustrating a first operating state of the device for preventing reverse rotation of the belt conveyor according to an embodiment of the present invention when the belt conveyor is rotated forward.
5 is an operation state diagram illustrating a second operating state of the device for preventing reverse rotation of the belt conveyor according to an embodiment of the present invention when the belt conveyor is rotated forward.
6 is an operational state diagram illustrating a third operating state of the device for preventing reverse rotation of the belt conveyor according to an embodiment of the present invention when the belt conveyor is rotated forward.
7 is an operating state diagram illustrating an operating state of the device for preventing reverse rotation of the belt conveyor according to an embodiment of the present invention when the belt conveyor rotates in reverse.

Hereinafter, an embodiment of a device for preventing reverse rotation of a belt conveyor according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention, and may vary according to the intention or custom of users or operators. Therefore, definitions of these terms should be made based on the contents throughout the present specification.

1 is a perspective view schematically showing an installation state of a device for preventing reverse rotation of a belt conveyor according to an embodiment of the present invention.

Referring to Figure 1, the belt conveyor (2) includes a transfer belt (3) and a rotary pulley (6).

The transfer belt (3) includes a transfer belt section (4) for transferring raw materials and a return belt section (5) connected to the lower portion of the transfer belt section (4), and is linked to the rotation of the rotary pulley (6). While rotating in a track, the raw material seated on the transfer belt part 4 is transferred. The transfer belt 3 according to an embodiment of the present invention is installed with a left side having a higher inclined surface than a right side so that raw materials can be transferred upward to the left.

The rotary pulley 6 is disposed between the transfer belt part 4 and the return belt part 5. The rotary pulley 6 is installed in frictional contact with the transfer belt 3 and transmits the rotational force of a motor (not shown) to the transfer belt 3 or rotates at the correct position in connection with the rotation of the transfer belt 3 . Hereinafter, in the description of the present invention, rotation in a direction in which the raw material is transferred upward in a state in which the transfer belt 3 is installed in an inclined manner is referred to as forward rotation, and the opposite direction is referred to as reverse rotation.

The device 1 for preventing reverse rotation of the belt conveyor 2 according to an embodiment of the present invention is a downward force acting on the conveying belt part 4 due to the load of raw materials, or the conveying belt 3 due to malfunction, etc. When is rotated in the reverse direction, by restricting the rotation of the rotary pulley 6, the operation of stopping the reverse rotation of the transfer belt 3 is implemented.

Referring to FIG. 1, a device 1 for preventing reverse rotation of a belt conveyor 2 according to an embodiment of the present invention includes a pulley stopping device 10 and a pressure roller device 20.

The pulley stopping device 10 is disposed at a spaced apart from the rotation pulley 6, and has a structure capable of rotating toward the rotation pulley 6 by being pushed by the pressure roller device 20. The pulley stopping device 10 is in frictional contact with the rotating pulley 6 when rotating toward the rotating pulley 6, and restrains and stops the rotation of the rotating pulley 6. That is, the pulley stopping device 10 is detachably installed on the rotating pulley 6 by a rotating operation, and stops the rotation of the rotating pulley 6 when it comes into contact with the rotating pulley 6.

The pressure roller device 20 is installed in frictional contact with the bottom of the return belt part 5 and rotates in conjunction with the movement of the return belt part 5. When the return belt part 5 moves in the forward direction, the pressure roller device 20 rotates in the forward direction in conjunction with the movement of the return belt part 5 and presses the pulley stop device 10 in the first direction D1. When the return belt part 5 moves in the reverse direction, the pressure roller device 20 rotates in the reverse direction in conjunction with the movement of the return belt part 5, and the pulley stop device 10 is rotated in the second direction toward the rotary pulley 6 Pressurize with (D2).

2 is a perspective view schematically showing an apparatus for preventing reverse rotation of a belt conveyor according to an embodiment of the present invention, and FIG. 3 is a side view schematically showing an apparatus for preventing reverse rotation of a belt conveyor according to an embodiment of the present invention to be.

Referring to Figure 1, the pulley stop device 10 according to an embodiment of the present invention is a base portion 11, a rotation support portion 12, a pulley pressing portion 13, a roller contact portion 14, a return support portion 15 ).

The base 11 is a device that forms a frame capable of supporting the rotational support 12 and the return support 15 and is disposed below the return belt 5. The rotation support 12 is installed on the base 11 so as to be rotatable. 2 and 3, the rotation support 12 according to an embodiment of the present invention includes a rotation bar 121, a rotation shaft 122, and a pressure bar 123.

The rotating bar 121 is formed to extend from the base 11 to the upper side of the return belt 5. The rotation shaft 122 is coupled to the base portion 11 and supports the rotation bar 121 so as to be rotatable. The rotation bar 121 may be rotated from the first position P1 to the second position P2 with respect to the rotation shaft 122.

In the description of the present invention, the first position (P1) is the initial position at which the installation of the rotating bar 121 is performed, and when the transfer belt 3 is rotated forward, the rotating bar 121 is stopped at the first position (P1), maintain. The second position (P2) is a moving position of the rotation bar 121 for stopping the transfer belt 3, and when the transfer belt 3 rotates in reverse, the rotation bar 121 rotates toward the rotation pulley 6 It is moved to the second position P2.

The pressing bar 123 is a device portion to which the pulley pressing unit 13 is coupled, and extends from the rotating bar 121 toward the rotating pulley 6. Hereinafter, for convenience of explanation, the direction will be set based on the reverse rotation preventing device 1 of the belt conveyor 2 shown in FIG. 3. The rotation bar 121 is arranged to be upright on the right side of the rotation pulley 6, and the pressure bar 123 extends to the left toward the rotation pulley 6 from the rotation end of the rotation bar 121.

The pulley pressing part 13 is a device that contacts the rotating pulley 6 when the rotating bar 121 rotates to the second position P2, and is connected to the left end of the pressing bar 123. 2 and 3, the pulley pressing unit 13 according to an embodiment of the present invention includes a pressing member 131, a first holding shaft 132, a second holding shaft 133, and a close guide hole ( 134).

The pressing member 131 is in frictional contact with the rotation pulley 6 and the return belt part 5 when the rotation bar 121 rotates to the second position P2, and the rotation of the rotation pulley 6 and the return belt part ( 5) stop the movement. The pressing member 131 has an end shape corresponding to a contact portion between the rotary pulley 6 and the return belt portion 5. More specifically, the upper portion of the pressing member 131 has a shape corresponding to the outer surface of the rotary pulley 6, and the lower portion of the pressing member 131 has a shape corresponding to the upper surface of the return belt portion 5 .

The first holding shaft 132 is coupled to the end of the pressing bar 123 and supports the pressing member 131 so as to be rotatable. The second holding shaft 133 is coupled to the pressing member 131 and is disposed to be spaced apart in front of the first holding shaft 132. The close contact guide hole 134 is a device that guides the vertical movement of the second holding shaft 133 and is formed to penetrate through the pressure bar 123.

The close contact guide hole 134 is formed to extend in the shape of an elongated hole centered on the first holding shaft 132, more specifically, to form an arc shape. The second holding shaft 133 may not interfere with the pressure bar 123 by the close contact guide hole 134, and may move vertically around the first holding shaft 132. At this time, the pressing member 131 is rotated about the first holding shaft 132 in proportion to the angular displacement of the second holding shaft 133.

The roller contact portion 14 is a device portion in contact with the pressure roller device 20, is rotatably coupled to the rotation bar 121, and extends toward the pressure roller device 20. 2 and 3, the roller contact portion 14 according to an embodiment of the present invention includes a contact bar 141, a hopping shaft 142, and a flow preventing device 143.

The contact bar 141 extends from the rotation bar 121 toward the pressure roller device 20. The pressure roller device 20 is disposed on the right side of the rotation bar 121, and the contact bar 141 extends to the right toward the pressure roller device 20 at an intermediate portion in the extension direction of the rotation bar 121. 2, the contact bar 141 according to an embodiment of the present invention includes an extension part 141a, a forward contact part 141b, and a reverse contact part 141c.

The extension part 141a is formed to extend from the rotation bar 121 to the right side toward the pressure roller device 20. The left end of the extension part 141a is rotatably coupled to the rotation bar 121 by a hopping shaft 142. A forward contact portion 141b and a reverse contact portion 141c are formed at the right end of the extension portion 141a.

The forward contact portion 141b is formed under the extension portion 141a and contacts the pressing roller device 20 rotating in the forward direction. The reverse contact portion 141c is disposed at the right end of the extension portion 141a, and contacts the pressing roller device 20 rotating in the reverse direction. More specifically, the reverse contact portion 141c is disposed to face the stop pressing portion 233 (described below) of the pressing roller device 20.

The hopping shaft 142 is coupled to the rotation bar 121 and supports the contact bar 141 so as to be rotatable. The contact bar 141 may be rotated from the third position P3 to the fourth position P4 with respect to the hopping shaft 142. In the description of the present invention, the third position (P3) is the initial position at which the contact bar 141 is installed, and when the transfer belt 3 is rotated forward, the contact bar 141 is pressed by hopping of the pressure roller device 20 In contact with the part 232 (described below), it is pushed upward and rotates to the fourth position P4. Is supported.

When the transfer belt 3 rotates forward, the contact bar 141 is moved from the third position (P3) to the fourth position (P4) according to the contact state with the hopping pressing unit 232, and the third position (P3) Repeat the operation to return to. At this time, as the contact bar 141 is rotatably supported by the hopping shaft 142, the contact force with the pressure roller device 20 acts only in the first direction D1 to rotate the contact bar 141 upward. , It does not work in the second direction D2 to rotate the rotation bar 121 to the second position P2.

The flow preventing device 143 is a device unit for clearly converting the pressing force of the pressing roller device 20 into the rotational force of the rotating bar 121, and elastically pressing the contact bar 141 to the third position P3, When the pressure roller device 20 presses the contact bar 141 in the second direction D2, the contact bar 141 is restricted from rotating and flowing arbitrarily. 2 and 3, the flow prevention device 143 according to an embodiment of the present invention includes a support bar 144, a hanging bar 145, a locking means 146, and a flow prevention member 147 do.

The support bar 144 is coupled to the right side of the rotation bar 121 and is disposed above the contact bar 141. The hanging bar 145 extends downward from the support bar 144 toward the contact bar 141. In the contact bar 141, a through-hole portion 141d through which the hanging bar 145 can penetrate is formed to penetrate in the vertical direction, and the hanging bar 145 passes through the through-hole portion 141d in the support bar 144 It extends to the lower side of the contact bar (141).

The locking means 146 is a device for restraining the downward movement of the contact bar 141, and is formed in a lower portion of the hanging bar 145 passing through the contact bar 141 with a width greater than the through hole portion 141d. The locking means 146 supports the contact bar 141 from the lower side and restrains the downward movement of the contact bar 141.

The flow preventing member 147 is a device for pressing the contact bar 141 downward toward the locking means 146, and includes an elastic material. As the flow preventing member 147, a coil spring may be applied, and the hanging bar 145 may be fitted and installed in the vertical direction. The contact bar 141 can reliably implement the operation of returning to the third position P3 by the flow preventing member 147 in the state of being rotated to the fourth position P4, and the contact bar 141 can flow arbitrarily. , It is possible to prevent rotation, so that when a pressing force is applied to the contact bar 141 in the second direction D2, the operation of rotating the rotation bar 121 to the second position P2 can be stably implemented.

The return support part 15 is a device for elastically pressing the rotation bar 121 to the first position P1, and includes an elastic material. The return support 15 is disposed on the left side of the rotation bar 121 and elastically presses the rotation bar 121 to the right. 2 and 3, the return support part 15 according to an embodiment of the present invention includes a fixing support 151, a guide shaft 152, a guide bar 153, and a return pressing member 154. .

The fixing support 151 is fixedly installed on the base portion 11. The fixing support 151 is disposed to extend upward on the left side of the rotation bar 121. The guide shaft 152 is coupled to the upper portion of the fixing support 151. The guide bar 153 is rotatably coupled to the rotation bar 121, extends to the left toward the fixing support 151, and intersects the fixing support 151.

On the guide bar 153, a guide hole portion 153a through which the guide shaft 152 passes in the front-rear direction is formed. When the rotation bar 121 is rotated, the guide bar 153 is moved together with the rotation bar 121, and the guide hole portion 153a is formed to extend in the horizontal direction so as not to interfere with the movement of the guide bar 153.

The left end of the guide hole 153a functions as a stopper for restraining the rightward movement of the guide bar 153 in contact with the guide shaft 152, that is, the rightward movement of the rotation bar 121. In a state in which the guide shaft 152 is in contact with the left end of the guide hole portion 153a, the rotation bar 121 is located at the first position P1.

The return pressing member 154 is a device for elastically pressing the rotating bar 121 to the first position P1 and is installed on the guide bar 153. As the return pressing member 154, a coil spring may be applied, and may be fitted in the circumferential portion of the guide bar 153 in the left and right directions. At this time, the left end of the return pressing member 154 is in contact with the fixing support 151, and the right end of the return pressing member 154 is in contact with the rotating bar 121. With this installation structure, it is possible to elastically press the rotating bar 121 to the right, that is, to the first position P1 based on the fixed support 151, and when the transfer belt 3 is rotated forward, Figs. The initial state shown in 3 can be stably maintained.

4 is an operational state diagram illustrating a first operating state of the device for preventing reverse rotation of the belt conveyor according to an embodiment of the present invention when the belt conveyor is rotated forward, and FIG. 5 is a diagram illustrating the present invention when the belt conveyor is rotated forward. It is an operating state diagram illustrating a second operation state of the device for preventing reverse rotation of the belt conveyor according to an embodiment, and FIG. 6 is a device for preventing reverse rotation of the belt conveyor according to an embodiment of the present invention when the belt conveyor is rotated forward. Fig. 7 is an operation state diagram illustrating the operation state of the device for preventing reverse rotation of the belt conveyor according to an embodiment of the present invention when the belt conveyor is rotated in reverse.

2 and 3, the pressing roller device 20 according to an embodiment of the present invention includes a support 21, a contact roller 22, and a rotary pressing means 23.

The support 21 is a device that forms a frame capable of supporting the contact roller 22 and is disposed under the return belt 5. The contact roller 22 has a more extended length to the width of the return belt part 5, is rotatably installed on the support 21, and is installed in contact with the bottom of the return belt part 5.

The contact roller 22 rotates in a forward or reverse direction in conjunction with the movement of the return belt part 5. More specifically, when the return belt part 5 moves in the forward direction, the contact roller 22 rotates in the forward direction as shown in FIGS. 4, 5 and 6, and contacts when the return belt part 5 moves in the reverse direction. The roller 22 is rotated in the reverse direction as shown in FIG. 7.

The rotational pressing means 23 is a device that converts the rotational force of the contact roller 22 into a pressing force for moving the pulley stopping device 10, and is formed to protrude from the circumference of the contact roller 22. The rotary pressing means 23 presses the pulley stopping device 10 in the first direction D1 when the contact roller 22 rotates in the forward direction, and the pulley stopping device 10 when the contact roller 22 rotates in the reverse direction. ) In the second direction (D2) toward the rotary pulley (6). 2 and 3, the rotary pressing means 23 according to an embodiment of the present invention includes a pressing protrusion 231, a hopping pressing unit 232, and a stop pressing unit 233.

The pressing protrusion 231 is formed to protrude in the radial direction of the contact roller 22 at the periphery of the contact roller 22. The hopping pressing part 232 is in contact with the contact bar 141 when the contact roller 22 rotates in the forward direction among the pressure protrusions 231, and more specifically, at one side of the contact bar 141 in contact with the forward contact part 141b. Is formed. The hopping pressing unit 232 forms a curved surface in which the protruding height gradually expands toward the end side in the reverse direction.

When the return belt part 5 moves in the forward direction, the contact roller 22 rotates in the forward direction in connection with this, and the hopping pressing part 232 moves in the forward direction of the contact bar 141 as the forward rotation of the contact roller 22 proceeds. In a state in contact with the contact part 141b, the position of the upper end thereof is gradually increased, gradually pushing the contact bar 141 upward and upward to the fourth position P4 as shown in FIGS. 4, 5 and 6 Will be moved.

When the forward rotation of the contact roller 22 further proceeds in the state as shown in FIG. 6, the hopping pressing unit 232 is separated from the contact bar 141, and the contact bar 141 is separated as shown in FIG. It moves downward to the third position P3 and returns. When the return belt part 5 moves in the forward direction, the contact bar 141 repeats the operating state as shown in FIGS. 3, 4, 5, and 6, and the pressing member 131 is a rotary pulley 6 Keep away from

The stop pressing unit 233 is in contact with the pulley stopping device 10 when the contact roller 22 rotates in the reverse direction among the pressing protrusions 231, and more specifically, the other side in contact with the reverse contact unit 141c of the contact bar 141 Is formed in The stop pressing part 233 is disposed to face the right end of the hopping shaft 142, that is, the reverse contact part 141c, and is formed to extend in the radial direction from the circumference of the contact roller 22, or spaced in the radial direction. Is formed in a position

When the return belt part 5 moves in the reverse direction, the contact roller 22 rotates in the forward direction in connection with this, and the stop pressing part 233 is rotated in the reverse direction of the contact roller 22. It is located at the top and moves downward to the left while facing the reverse contact part 141c of the contact bar 141 as shown in FIG. 3, and pushes the contact bar 141 to the left as shown in FIG. do.

At the same time, while the hopping shaft 142 and the rotation bar 121 connected to the contact bar 141 via the flow prevention device 143 are pushed to the left and rotated together, the first position P1 to the second position P2 ), and as the pressing member 133 coupled to the pressing bar 123 moves together toward the rotation pulley 6, it is fitted between the rotation pulley 6 and the return belt part 5, and is inserted between the rotation pulley ( 6) The rotation and movement of the rotary pulley 6 and the return belt 5 are stopped while pressing and frictional contact with the return belt 5.

At this time, the pressing member 131 is suspended from the rotation pulley 6 and the return belt part 5 by the first holding shaft 132 and the second holding shaft 133 at a set angle, the rotation pulley ( 6), and when contacting the rotary pulley 6 or the return belt part 5, the second holding shaft 133 rotates naturally with respect to the first holding shaft 132 by the contact force, that is, the second holding shaft 133 While moving smoothly without interfering with 123, it can be smoothly entered between the rotary pulley 6 and the return belt portion 5.

According to the device 1 for preventing reverse rotation of the belt conveyor 2 according to the present invention having the configuration as described above, the pulley stopping device 10 is operated using the pressure roller device 20 when the belt conveyor 2 rotates in reverse. By pressing toward the rotary pulley 6, it is possible to prevent the belt conveyor 2 from rotating in the reverse direction.

Accordingly, according to the present invention, when the belt conveyor 2 is rotated in the reverse direction due to a load of raw materials acting in a direction that inhibits the forward rotation of the belt conveyor 2 or a malfunction, the rotation pulley 6 By restraining the rotation, it is possible to prevent the fuel material from moving in the reverse direction, resulting from falling light and safety accidents.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is only illustrative, and those of ordinary skill in the field to which the technology pertains, various modifications and other equivalent embodiments are possible. I will understand. Therefore, the true technical protection scope of the present invention should be determined by the following claims.

1: reverse rotation prevention device 2: belt conveyor
3: transfer belt 4: transfer belt part
5: return belt part 6: rotary pulley
10: pulley stop device 11: base part
12: rotation support part 13: pulley pressing part
14: roller contact portion 15: return support portion
20: pressure roller device 21: support
22: contact roller 23: rotary pressing means
121: rotating bar 122: rotating shaft
123: pressure bar 131: pressure member
132: first holding shaft 133: second holding shaft
134: contact guide hole 141: contact bar
141a: extension part 141b: forward contact part
141c: reverse contact part 141d: through hole
142: hopping shaft 143: flow prevention device
144: support bar 145: hanging bar
146: locking means 147: flow preventing member
151: fixed support 152: guide shaft
153: guide bar 153a: guide hole
154: return pressing member 231: pressing protrusion
232: hopping pressurization unit 233: stop pressurization unit

Claims (8)

A pulley stopping device detachably installed on the rotation pulley of the belt conveyor and stopping rotation of the rotation pulley when contacting the rotation pulley; And
And a pressure roller device that rotates in association with the movement of the belt conveyor and presses the pulley stop device toward the rotation pulley when the belt conveyor rotates in reverse.
According to claim 1
The pulley stopping device,
Base portion;
A rotation support part installed on the base part and rotated from a first position to a second position;
A pulley pressing part connected to an end of the rotation support part and contacting the rotation pulley when the rotation support part rotates to the second position;
A roller contact portion coupled to the rotation support portion and in contact with the pressure roller device; And
A device for preventing reverse rotation of a belt conveyor comprising a; a return support part for elastically pressing the rotation support part to the first position.
The method of claim 2,
The pulley pressing part,
A pressing member in frictional contact with the rotation pulley when the rotation support part is rotated to the second position;
A first holding shaft coupled to the rotation support and rotatably supporting the pressing member;
A second holding shaft coupled to the pressing member and disposed to be spaced apart from the first holding shaft; And
And a contact guide hole formed on the rotation support part and configured to guide the second holding shaft so that the pressing member is rotatable about the first holding shaft, the device for preventing reverse rotation of a belt conveyor comprising: .
The method of claim 2,
The roller contact portion,
A contact bar extending from the rotation support portion toward the pressure roller device;
A hopping shaft coupled to the rotation support and supporting the contact bar to be rotatable from a third position to a fourth position; And
And a flow prevention device for elastically pressing the contact bar to the third position.
The method of claim 4,
The contact bar,
An extension portion extending in the transverse direction and one end coupled to the hopping shaft;
A forward contact part formed under the extension part and in contact with the pressing roller device rotating in a forward direction; And
And a reverse contact part disposed at the other end of the extension part and in contact with the pressure roller device rotating in a reverse direction.
The method of claim 4,
The flow preventing device,
A support bar coupled to the rotation support and disposed above the contact bar;
A hanging bar extending downward from the support bar toward the contact bar;
A locking means formed under the hanging bar and contacting the contact bar to restrict downward movement of the contact bar; And
A device for preventing reverse rotation of a belt conveyor comprising: a flow preventing member comprising an elastic material and pressing the contact bar downward toward the locking means.
The method of claim 1,
The pressure roller device,
support fixture;
A contact roller rotatably installed on the support, in contact with the belt conveyor, and rotated in a forward or reverse direction in association with the movement of the belt conveyor; And
It is formed to protrude from the circumference of the contact roller, contacts the pulley stop device, presses the pulley stop device in a first direction when the contact roller rotates in a forward direction, and rotates the pulley stop device when rotating in the reverse direction. A device for preventing reverse rotation of a belt conveyor comprising a; rotation pressing means for pressing in a second direction toward the pulley.
The method of claim 7,
The rotary pressing means,
A pressing protrusion formed to protrude from the circumference of the contact roller;
A hopping pressing unit formed on one side of the pressing protrusions in contact with the pulley stopping device when the contact roller rotates in a forward direction, and forming a curved surface whose protrusion height gradually expands toward an end in a reverse direction; And
And a stop pressing unit formed on the other side of the pressing protrusions in contact with the pulley stopping device when the contact roller rotates in a reverse direction, and pressing the pulley stopping device toward the rotation pulley side; and a reverse rotation of the belt conveyor comprising: Prevention device.

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