KR101961200B1 - Flat belt conveyor with easy drum replacement - Google Patents

Abstract

The present invention relates to a belt conveyor apparatus easy to replace a drum, capable of simply and safely replacing a drum. According to the present invention, the belt conveyor apparatus easy to replace a drum comprises: a frame unit including a plurality of vertical frames for horizontally supporting a pair of left and right horizontal frames at a height apart from a bottom surface; a drum unit including a first rotary drum rotatably assembled to one end of the pair of left and right horizontal frames and a second rotary drum rotatably assembled the other end of the horizontal frame to wind a belt; a driving unit including a driving motor, which is connected to a driving roller disposed between the first and second rotary drums to wind the belt, through a power transmission means to provide power for infinitely circulating the belt coming in contact with the first and second rotary drums to be wound; and a plurality of upper and lower support rollers supporting both ends between the pair of left and right horizontal frames to support the belt. Any one of the first and second rotary drums comprises: an outer hollow pipe having an outer surface circumscribing with the inner surface of the belt; an inner support bar assembled to both ends of the inner surface of the outer hollow pipe through a bearing member to be disposed in the outer hollow pipe; a pair of left and right support blocks assembled to both ends of the inner support bar through a horizontal long hole penetrated into the pair of left and right horizontal frames via a coupling member; and a pair of left and right adjustment bars formed on the outer side of the pair of left and right horizontal frames to connect one end with the pair of left and right support blocks movably disposed along the horizontal long hole and to connect the other end with the pair of left and right support plates fixed on the outer surface of the pair of left and right horizontal frames.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a belt conveyor,

More particularly, the present invention relates to a belt conveyor apparatus which can easily and safely carry out a replacement operation for a drum, which is periodically and periodically replaced frequently, and can easily replace a drum that can perform tensioning operation on a flat belt To a flat belt conveyor device.

Generally, a transportation facility such as a belt conveyor is provided with a line and a rear-end rotating drum on both sides of a frame formed at intervals corresponding to the width of the belt, A plurality of support rollers for supporting the rollers, and a driving drum for receiving a driving force of the motor via a power transmitting means such as a chain and a chain gear, so that the belt wound around the line, the rear- It is to rotate it circularly.

In addition, since the belt constituting the belt conveyor is damaged during long-term use due to its nature of conveying a heavy article, it is necessary to periodically and periodically replace the belt. The line supporting the belt, the rear rotary drum and the support roller use bearings And the bearing is also damaged due to its characteristics.

Accordingly, in order to replace the components such as the belt, the rotary drum, and the support roller, the operator disassembles the fixing bracket, which is coupled to the frame so as to fix the rotary drum and the support roller, to the frame, I had to.

However, such a conventional replacement work requires a long working time for disassembling and recombining the plurality of brackets from the frame, thus lengthening the stoppage time of the transportation line, thereby lowering work productivity and causing loss of manpower.

(Patent Document 1) KR10-0592566 B1

(Patent Document 2) KR20-0168303 Y1

Patent Document 1 discloses a technique in which a driven roller attaching / detaching groove and a tension adjusting guide groove are integrally formed in a "?" Shape in a support bracket inserted and fixed at both ends of a frame to support the driven roller, A support bracket for supporting the drive roller is disassembled from the frame and a support bracket for supporting the driven roller is easily and easily separated from the frame without disassembling the driven roller.

Patent Document 2 discloses a technique of improving the shape of a bracket for supporting a drive roller and a bracket for supporting a drive roller when replacing a drive roller at a start portion of a belt and a tail roller at an end of a conveyor, And a conveyor device.

However, in Patent Documents 1 and 2, the operation of disassembling and separating the driving and driven rollers from the frame and re-assembling and replacing new parts is very cumbersome and has a limitation in shortening the replacement operation time, The maintenance cost is increased.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a rotary support structure that can be easily and safely replaced with a drum, Which can be carried out safely and precisely.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

As a specific means for achieving the above object, a preferred embodiment of the present invention is a frame structure comprising: a frame portion including a plurality of vertical frames horizontally supporting a pair of left and right horizontal frames at a height apart from a floor; A first rotary drum rotatably assembled to one end of the pair of left and right horizontal frames and a second rotary drum rotatably assembled to the other end of the horizontal frame, And a driving motor disposed between the first rotating drum and the second rotating drum and connected to the driving roller through which the belt is wound by the power transmitting means, A driving unit that provides power to circulate; A plurality of upper and lower support rollers supported at both ends between the pair of left and right horizontal frames to support the belt; Wherein one of the first rotary drum and the second rotary drum includes an outer hollow shell in which an inner side surface and an outer side surface of the rotary drum are in contact with each other, A pair of right and left support blocks assembled through both ends of the inner support bar and a fastening member through horizontal elongated holes formed in the left and right pair of horizontal frames, A pair of left and right support frames, one end of which is connected to a pair of left and right support blocks arranged to be movable along the horizontal slot, a pair of right and left support plates fixed to the outer sides of the pair of right and left horizontal frames, And a pair of left and right control bars which are disposed on the left and right sides of the control bar.

Preferably, the support block includes a small diameter portion having an inner hole into which the end portion of the inner support bar is inserted so as to be movable in the horizontal slot, and an inner hole into which the fastening member engaged with the end portion of the inner support bar is inserted And a large diameter portion connected to the adjustment bar on the outside of the horizontal slot.

Preferably, the support plate may include an incision that is cut outward and in which the control bar is disposed.

Preferably, a pair of right and left folding plates folded to be assembled by a fastening member to the left and right pair of horizontal frames are provided between the upper supporting rollers adjacent to each other at both left and right ends of the horizontal plate corresponding to the inner side of the belt, And a support portion that is held in contact with the inner surface of the belt on which the object is placed.

Preferably, the frame portion includes a narrowing prevention portion for selectively blocking a space formed adjacent to one of the rotary drums of the first and second rotary drums, wherein the narrowing prevention portion comprises a curved line And a second connection hole corresponding to the arc hole formed in the horizontal frame and passing through the first connection hole corresponding to the rotation hole formed in the horizontal frame and passing through the second connection hole formed in the left and right ends of the curved plate, A pair of side plates, a rotation support shaft assembled to the first connection hole through the rotation hole, and a rotation axis coaxial with the second connection hole through the circular hole.

According to a preferred embodiment of the present invention as described above, the following effects can be obtained.

Since the supporting block supporting both ends of the rotary drum can be separated by disassembling the inner supporting bar and the fastening member so as to confine the rotating drum constituted by the outer middle hollow tube and the inner supporting bar between a pair of left and right horizontal frames, It is possible to carry out the operation of separating and pulling out the rotary drum externally easily and safely.

Since the tension applied to the belt can be adjusted by horizontally moving the support block connected to the inner support bar and the both ends of the rotary drum through the horizontal slot, the tension of the belt on which the conveyed object is raised can be always kept constant, .

The curved plate is rotated downward when the rotary drum is replaced at a position adjacent to the rotary drum and the curved plate is rotated upward and rotated after the rotary drum is replaced. As a result, the rotary drum, And a work space for performing replacement work for re-installing the new rotary drum can be secured sufficiently, so that the replacement work can be performed safely.

FIG. 1 is an exploded perspective view showing a belt conveyor apparatus which is easy to replace a drum according to an embodiment of the present invention.
FIG. 2 is an overall perspective view of a belt conveyor apparatus according to an embodiment of the present invention. FIG.
FIGS. 3A and 3B are a plan view and a front view showing a belt conveyor apparatus that facilitates drum replacement according to an embodiment of the present invention.
FIG. 4 is a partial detail view showing a driving unit and a drum for changing direction of a belt conveyor apparatus in which a drum can be easily replaced according to an embodiment of the present invention.
FIG. 5 is an exploded perspective view showing the construction of the first and second rotating drums and the drum for changing direction of the belt conveyor apparatus in which drums can be easily replaced according to the embodiment of the present invention.
FIG. 6 is an assembly view showing the construction of the first and second rotating drums and the drum for changing direction of the belt conveyor apparatus in which the drum is easily replaced according to the embodiment of the present invention.
FIG. 7 is an operational state diagram showing a stiction preventing portion of a belt conveyor apparatus which is easy to replace a drum according to an embodiment of the present invention.
FIG. 8 is an exploded perspective view showing a stuck-at preventing portion of a belt conveyor apparatus in which drums can be easily replaced according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may obscure the subject matter of the present invention.

The same reference numerals are used for portions having similar functions and functions throughout the drawings.

In addition, in the entire specification, when a part is referred to as being 'connected' to another part, it may be referred to as 'indirectly connected' not only with 'directly connected' . Also, to include an element does not exclude other elements unless specifically stated otherwise, but may also include other elements.

A belt conveyor apparatus 100 according to a preferred embodiment of the present invention is a rotary drum component that requires periodic and regular replacement due to wear and tear, as shown in Figures 1, 2 and 3a, The drum unit 20, the driving unit 30, and the upper and lower support rollers so that the replacement operation can be performed easily and safely.

As shown in Figs. 1, 2 and 3A and 3B, the frame portion 10 includes a pair of left and right horizontal frames 11 aligned with each other at a distance corresponding to the width of the belt, And a plurality of vertical frames (12) coupled to an upper end of the frame and a lower end of which is supported on the floor, wherein the horizontal frame, in which the belt is endlessly circulated by the vertical frame, is horizontally It is to support.

The horizontal frame 11 may be constructed by continuously assembling a plurality of horizontal frames in the longitudinal direction in consideration of a conveying length of an article to be transferred.

A connecting frame 13 may be provided between a pair of adjacent vertical frames 12 and a height adjusting member 14 may be provided at a lower end of the vertical frame 12 to adjust the height thereof.

1 and 2, the drum portion 20 is rotatably mounted on one end of the pair of left and right horizontal frames and is rotatably supported by a cylindrical first rotation And a second rotary drum including a drum 21 and rotatably assembled to the other end of the horizontal frame 11 so that part of the inner and outer surfaces of the belt B are in contact with each other as in the case of the first rotary drum 21 So that the belt on which the transporting object is mounted is guided to the endless track guide.

1, 2, and 4, the driving unit 30 is disposed between the first rotary drum 21 and the second rotary drum 22 at a lower side of the horizontal frame, And a drive motor (33) including a driven roller (31) which is wound and connected to one end of the roller shaft of the drive roller via a power transmitting means such as a chain or a V-belt, To provide power for circulating the belt such as the flat belt wound on the driving roller and the first and second rotary drums in an endless track manner.

The left and right ends of the roller shaft of the drive roller 31 are fixed to the base plate of the motor base 32 fixed to the lower end of the horizontal frame 11 of the drive motor 33, And a pair of right and left bearing blocks fixedly installed on one side of the bearing block.

A pair of turning drums 23 for switching the direction of the belt B to be returned to the lower side of the horizontal frame 11 may be provided directly above the driving roller 31.

The pair of left and right horizontal frames 11 are provided with a plurality of upper portions 11a and 11b, both ends of which are assembled to the upper edge of the pair of left and right horizontal frames 11 so as to be in contact with the inner side surface of the belt, A plurality of lower support rollers 42, both ends of which are assembled to the lower edge of the pair of left and right horizontal frames 11 so as to circumscribe the inner side surface of the belt to be fed back after completion of the transfer operation with respect to the conveyance object, . ≪ / RTI >

Between the upper supporting rollers 41 adjacent to each other, a pair of right and left folding plates 43a bent to be assembled to the left and right pair of horizontal frames by a fastening member are inserted into the horizontal plates 43b And a receiving portion 43 which is provided on both ends of the left and right ends of the belt and supports the conveying object in contact with the inner surface of the belt which is unidirectionally moved.

The edge of the horizontal plate corresponding to the upper support roller may be formed with an inclined edge inclined downward by a predetermined angle so as to reduce an interval between adjacent upper support rollers.

By providing the receiving portion in the space between the upper supporting rollers 41 adjacent to each other at regular intervals, it is possible to prevent the lower portion of the belt on which the conveyed object, which is a heavy object, The manufacturing cost can be reduced by reducing the number of installed parts.

On the other hand, as shown in Figs. 5, 6 and 7, the rotary drum of any one of the first rotary drum 21, the second rotary drum 22, (110) having an inner surface and an outer surface of the outer hollow tube (110) and having a predetermined length, the inner and outer surfaces of the outer hollow tube (110) And an inner support bar 120 disposed within the cavity.

The outer hollow tube 110 circumscribes the inner side surface of the belt with the inner support bar as a rotation center, and is driven to rotate idle in one direction.

A horizontal slot 15 having a predetermined length is formed through a pair of left and right horizontal frames 11 corresponding to left and right ends of the inner supporting chimney and a pair of right and left support blocks Each end of the inner support bar 130 is assembled via both ends of the inner support bar 120 and the fastening member 134 through the horizontal slot 15 to support the inner support bar horizontally and to support the horizontal support So as to be reciprocally movable.

And a pair of right and left control bars 135, one end of which is connected to the left and right pair of support blocks 130 and is arranged on the outer side of the left and right pair of horizontal frames, And the other end thereof is supported by a pair of left and right support plates 136 fixed to the outer surface of the pair of left and right horizontal frames 11.

The support block 130 includes a small diameter portion 132 having an inner hole 133 into which the end of the inner support bar 120 is inserted so as to be horizontally movable in the horizontal slot 15, And a large diameter portion 131 having an inner hole into which a fastening member engaging with an end of the inner support bar is inserted and connected to the adjustment bar on the outside of the horizontal slot.

The fastening member 134 is formed of a male screw member that is screwed with a female screw portion formed at an end of the inner support bar so as to restrain both ends of the inner support bar disposed inside the outer hollow tube to the support block, And a fastening member for fastening the bar and the support block to each other.

By disassembling and fastening the fastening member from both ends of the inner support bar and separating and disassembling the rotary drum composed of the outer hollow tube and the inner support bar easily and safely from the horizontal frame and replacing the new rotary drum, It can be done easily.

The control bar 135 may be formed of a bar member having a predetermined length which is fixed to the outer surface of the large-diameter portion of the support block by welding at its tip or screwed into a thread groove formed on the outer surface of the large-

The control bar 135 includes a pair of left and right position fixing nuts for determining the position of the support block 130 horizontally moved along the horizontal slot 15 by forming a bar member having a predetermined length on the outer surface, And the members 135a may be screwed on both sides of the support plate 136 on both sides.

The position fixing nut member screwed to the male screw portion of the control bar is brought into close contact with the support plate to securely fix the position of the support block 130 and the rotary drum connected thereto, which are horizontally moved along the horizontal slot 15 .

The support plate 136 is formed of a rectangular plate fixed to the outer sides of the pair of left and right horizontal frames 11 and includes a cutout portion 136a cut outwardly to dispose the control bar 135 .

The length of the control bar 135 is raised and supported on the cutout portion 136a cut out to the support plate 136 so that the support block separated from the inner support bar 120 by the disassembly operation of the fastening member 130 to the outside along with the control bar without interfering with the support plate.

Accordingly, the operation of replacing one of the rotary drums of the first and second rotary drums and the rotary drum for changing direction, which is performed by the operator with the outer hollow core and the inner support bar, When the fastening member engaged with the end of the inner support bar is disassembled through the inner hole of the support block, the constraining force between the rotary drum and the support block including the outer support shaft assembled to the inner support bar is released, The rotary drum can be taken out to the outside.

In addition, when the operator reattaches the outer hollow core tube and the rotary drum including the inner support bar, when the fastening member inserted through the inner hole of the support block located in the horizontal slot is engaged with the end of the inner support bar, The rotary drum including the support shaft and the outer hollow shaft assembled therein is restrained by the support block and the fastening member and can be mounted on the horizontal frame so as to be in contact with the belt.

In addition, when the first and second rotating drums and the direction changing rotary drum are moved in the horizontal direction by using the position fixing nut member 135a screwed into the adjustment bar located on the cutout portion of the support plate, The tension of the belt which is wound around the rotary drum and the rotary drum for changing direction can be appropriately adjusted in accordance with the conveying condition of the conveying object.

At this time, on the outer surface of the horizontal frame 11 corresponding to the control bar 135, a support block 130, which is horizontally moved together with one of the rotary drums of the first and second rotary drums and the direction- And a scale part 137 having a scale so that the operator can visually confirm the position thereof.

7 and 8, the frame portion 10 selectively blocks the space formed adjacent to one of the first and second rotary drums, And a stenosis prevention part 140 for preventing an accident.

The stenosis prevention unit 140 includes a curved plate 141 that is in contact with the inner surface of the belt and has a first connection hole 142a corresponding to the rotation hole 16a formed in the horizontal frame, And a pair of left and right side plates (142) formed at left and right ends of the curved plate and passing through a second connection hole (142b) corresponding to a circular hole (16) formed through the horizontal frame, And a rotation support shaft 144 that is assembled to the first connection hole 142a through the rotation hole 16a and the rotation which is assembled to the second connection hole 142b through the circular hole 16 is coaxial with the axis 143 ).

The rotation support shaft 144 and the rotation coaxial shaft 143 are assembled to the first connection hole 142a through the rotation hole 16a and the second connection hole 142b And a pair of right and left shaft members respectively assembled to the left and right pair of side plates. However, the present invention is not limited to this and may be a single shaft member having a predetermined length.

Accordingly, the curved plate of the stenotic prevention unit can be rotated with respect to the rotary shaft in the operation of replacing any one of the rotary drums of the first and second rotary drums and the rotary drum for changing direction, The horizontal state is switched to the vertical state, thereby securing a free space.

After the rotation operation of the rotary drum is completed, the curved plate is returned to the upper position, and then the rotary support shaft is rotated in a horizontal state in a vertical state by a fastening member such as a nut member, The position of the curved plate can be fixed.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be apparent to those of ordinary skill in the art.

10:
11: Horizontal frame
12: Vertical frame
20:
21: First rotary drum
22: a second rotary drum
23: rotary drum for turning
30:
31: drive roller
32: Motor base
41: Upper support roller
42: Lower support roller
43:
110: Outer middle hall
120: inner supporting bar
130: support block
131: Large neck
132: Small neck
133: inner ball
134: fastening member
135: Control bar
136: Support plate
137: graduation
140:
141: Curved plate
142: side plate
143:
144:

Claims (5)

A frame portion including a plurality of vertical frames horizontally supporting a pair of left and right horizontal frames at a height apart from the floor;
A first rotary drum rotatably assembled to one end of the pair of left and right horizontal frames and a second rotary drum rotatably assembled to the other end of the horizontal frame,
And a driving motor disposed between the first rotating drum and the second rotating drum and connected to the driving roller through which the belt is wound by the power transmitting means, A driving unit that provides power to circulate;
A plurality of upper and lower support rollers supported at both ends between the pair of left and right horizontal frames to support the belt; Lt; / RTI >
Wherein one of the rotary drum of the first rotary drum and the rotary drum of the second rotary drum is composed of an outer hollow shell in which an inner side surface and an outer side surface of the rotary drum are in contact with each other, A pair of right and left support blocks assembled via both ends of the inner support bar and a fastening member through a horizontal slot formed through the pair of left and right horizontal frames, A pair of right and left support blocks, one end of which is connected to a pair of left and right support blocks disposed outside the horizontal frame of the horizontal frame, and a pair of right and left support plates fixed to the outer surface of the pair of left and right horizontal frames, A control bar,
Wherein the support plate is cut outwardly to include a cutout in which the control bar is disposed. A frame portion including a plurality of vertical frames horizontally supporting a pair of left and right horizontal frames at a height apart from the floor;
A first rotary drum rotatably assembled to one end of the pair of left and right horizontal frames and a second rotary drum rotatably assembled to the other end of the horizontal frame,
And a driving motor disposed between the first rotating drum and the second rotating drum and connected to the driving roller through which the belt is wound by the power transmitting means, A driving unit that provides power to circulate;
A plurality of upper and lower support rollers supported at both ends between the pair of left and right horizontal frames to support the belt; Lt; / RTI >
Wherein one of the rotary drum of the first rotary drum and the rotary drum of the second rotary drum is composed of an outer hollow shell in which an inner side surface and an outer side surface of the rotary drum are in contact with each other, A pair of right and left support blocks assembled via both ends of the inner support bar and a fastening member through a horizontal slot formed through the pair of left and right horizontal frames, A pair of right and left support blocks, one end of which is connected to a pair of left and right support blocks disposed outside the horizontal frame of the horizontal frame, and a pair of right and left support plates fixed to the outer surface of the pair of left and right horizontal frames, A control bar,
Wherein the frame portion includes a stiction preventing portion for selectively blocking a space formed adjacent to one of the first and second rotating drums,
The stenosis prevention unit includes a curved plate that is in contact with an inner surface of the belt and a first connection hole corresponding to the rotation hole formed in the horizontal frame, and a second connection corresponding to the arc hole formed in the horizontal frame A pair of left and right side plates provided at left and right ends of the curved plate to penetrate the ball, a rotation support shaft assembled to the first connection hole through the rotation hole, and a rotation And a moving shaft. 3. The method according to claim 1 or 2,
Wherein the support block comprises a small diameter portion having an inner hole into which the end portion of the inner support bar is inserted so as to be movable in the horizontal slot and an inner hole into which a coupling member engaging with the end portion of the inner support bar is inserted, And a large diameter portion connected to the adjustment bar on the outside of the horizontal slot. 3. The method according to claim 1 or 2,
A pair of right and left folding plates folded to be assembled by a fastening member to the left and right pair of horizontal frames are provided between the upper supporting rollers adjacent to each other at both left and right ends of the horizontal plate corresponding to the inner side of the belt, Wherein the belt conveyor comprises a support portion which is in contact with the inner surface of the belt. delete

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