JP6298142B1 - Pivoted bucket conveyor - Google Patents

Abstract

A pivoted bucket conveyor capable of reducing string vibration of a chain due to polygonal motion is provided. A pivoted bucket conveyor (11) includes two buckets (70) that are swingably attached to an endless chain (60) wound around a plurality of sprockets (30). Among them, a pivoted bucket conveyor in which a rear edge 71 of the bucket located on the front side and a front edge 71 of the bucket located on the rear side can be overlapped vertically, and the chain extends along the sprocket. A guide rail 82 is provided to guide the chain so that the edges of adjacent buckets do not interfere with each other when moving in a curved manner, and the guide rail is adjacent to each of two sprockets among a plurality of sprockets. Provided at two locations, behind the sprocket in the direction of chain travel It is location. [Selection] Figure 2

Description

  The present invention relates to a pivoted bucket conveyor.

  Conventionally, a pivoted bucket conveyor in which a plurality of buckets are swingably attached to a chain wound around a plurality of sprockets is known as a kind of bucket conveyor that conveys a conveyed product such as a granular material. Yes. Some pivoted bucket conveyors have buckets attached to a chain so that the edges of adjacent buckets overlap each other vertically in order to continuously feed a conveyed product into the bucket. In such a configuration, when the chain moves while bending along the sprocket, the edges of adjacent buckets interfere with each other, which may hinder the movement of the chain.

  Therefore, Patent Document 1 describes a pivoted bucket conveyor including a lap changer for avoiding interference between edges of adjacent buckets when the chain moves while being bent. The lap changer is provided as a guide rail for guiding the chain, and is disposed at two positions adjacent to each of the two sprockets among the plurality of sprockets. The wrap changer guides the chain in a meandering manner together with the adjacent sprocket, so that when the chain moves while being bent by the next sprocket, the edges of the buckets do not interfere with each other. The overlap between edges has been changed.

JP 59-039605 A

  By the way, in such a pivoted bucket conveyor, a portion of the chain that curves along the sprocket has a polygonal shape. For this reason, the chain that moves around by the rotation of the sprocket performs a polygonal motion (cordal action) along the sprocket. Due to this polygonal movement, when the chain meshes with the sprocket, string vibration occurs in the chain. If the chain vibrates due to the rotation of the sprocket, the stability of the bucket will be greatly affected.

  This invention is made | formed in view of such a situation, The objective is to provide the pivoted bucket conveyor which can reduce the string vibration of the chain by polygonal motion.

Hereinafter, means for solving the above-described problems and the effects thereof will be described.
A pivoted bucket conveyor that solves the above-mentioned problem is that a plurality of buckets that are swingably attached to an endless chain wound around a plurality of sprockets are front of two buckets adjacent to each other in the traveling direction of the chain. A pivoted bucket conveyor in which a rear edge of the bucket located on the side and a front edge of the bucket located on the rear side can be vertically overlapped, and the chain bends along the sprocket. A guide member that guides the chain to avoid interference between the edges of the adjacent buckets when moving, and the guide member is connected to each of the two sprockets of the plurality of sprockets. Provided at two adjacent locations, the sprocket in the direction of travel of the chain. It is disposed in the rear.

  According to this configuration, the string vibration of the chain that occurs when meshing with the sprocket positioned forward in the traveling direction of the chain is suppressed by the guide member disposed behind the sprocket in the traveling direction of the chain. That is, the guide member for preventing the bucket edges from interfering with each other also has a role of reducing the string vibration of the chain. Therefore, the string vibration of the chain can be suppressed by the guide member provided originally without providing a new configuration. Therefore, the string vibration of the chain due to the polygonal motion can be reduced.

In the pivoted bucket conveyor, it is preferable that the bucket is attached to the chain via an attachment fitting.
According to this configuration, the bucket can be attached to the chain more firmly than the configuration in which the bucket is directly attached to the chain.

  The said pivoted bucket conveyor WHEREIN: It is preferable that the said attachment metal fitting has a bending part bent toward the width direction of the said chain which cross | intersects the advancing direction of the said chain.

According to this configuration, the rigidity of the mounting bracket can be improved by having the bent portion.
The said pivoted bucket conveyor WHEREIN: It is preferable that the said guide member is arrange | positioned in the location where the advancing direction of the said chain changes from a horizontal direction to a perpendicular direction.

  According to this configuration, when the sprocket is arranged so that the chain moves around in a crank shape, the guide member is arranged at a place excluding the head portion and the tail portion which are end portions in the pivoted bucket conveyor. Is done. Therefore, the configuration of the head portion and the tail portion can be simplified.

  In the pivoted bucket conveyor, the sprocket includes one drive sprocket that rotates to rotate the chain, and a plurality of driven sprockets that rotate following the rotation of the drive sprocket via the chain. The chain preferably has a winding angle of 180 ° with respect to the drive sprocket.

  According to this configuration, it is possible to transmit a large driving force to the chain as compared with the configuration in which the chain wrap angle with respect to the drive sprocket is 90 °.

  According to the present invention, string vibration of a chain due to polygonal movement can be reduced.

The side view which shows typically one Embodiment of a pivoted bucket conveyor. The side view which shows a bucket chain typically. The top view of a bucket chain. The side view of the bucket chain guided by a guide rail. The side view of the bucket chain in case the guide rail is not provided as a comparative example.

Hereinafter, an embodiment of a pivoted bucket conveyor will be described with reference to the drawings.
As shown in FIG. 1, a pivoted bucket conveyor (hereinafter simply referred to as a conveyor) 11 in the present embodiment includes a bucket chain 20 for conveying a conveyed product such as a granular material, and the bucket chain 20 is wound. A plurality of sprockets 30 to be hung and a case 40 for accommodating the bucket chain 20 and the sprockets 30 are provided. The case 40 includes an upper case 41 and a lower case 42 that extend along the horizontal direction, and an intermediate case 43 that extends along the vertical direction. The case 40 includes a first connection case 44 that connects the upper case 41 and the intermediate case 43, and a second connection case 45 that connects the lower case 42 and the intermediate case 43. That is, the case 40 is bent and extended in two stages so as to form a crank shape in FIG. The upper case 41 is disposed above the lower case 42.

  The plurality of sprockets 30 are disposed inside the upper case 41 and the lower case 42, the first connection case 44, and the second connection case 45, respectively. In the upper case 41, one sprocket 30 is disposed at an end portion that is opposite to the side to which the first connection case 44 is connected in the horizontal direction. In the lower case 42, one sprocket 30 is disposed at an end portion on the opposite side to the side to which the second connection case 45 is connected in the horizontal direction. Two sprockets 30 are arranged in each of the first connection case 44 and the second connection case 45. That is, a total of six sprockets 30 are arranged in the case 40 of the conveyor 11 in this embodiment.

  A drive motor 51 for driving and rotating the sprocket 30 disposed in the upper case 41 is provided at the upper part of the upper case 41. The drive motor 51 has an output shaft 52 for outputting a driving force. An output sprocket 53 that can rotate in synchronization with the output shaft 52 is attached to the output shaft 52. A transmission chain 55 is wound around the output sprocket 53 together with a transmission sprocket 54 disposed on the same rotation shaft 31 as the sprocket 30 in the upper case 41. The sprocket 30 in the upper case 41 is transmitted with the driving force of the driving motor 51 through the transmission sprocket 54 and the transmission chain 55. That is, the sprocket 30 disposed in the upper case 41 is provided as a drive sprocket 32 that can be driven and rotated. On the other hand, the other five sprockets 30 are provided as driven sprockets 33 that can be driven and rotated by the drive rotation of the drive sprocket 32 via the bucket chain 20. For this reason, the plurality of sprockets 30 in the present embodiment are composed of a drive sprocket 32 and a driven sprocket 33. Note that the drive sprocket 32 in the present embodiment is configured to rotate counterclockwise in FIG. Therefore, the bucket chain 20 wound around the plurality of sprockets 30 circulates in the counterclockwise direction so as to circulate in the case 40 as indicated by white arrows in FIG.

  The drive sprocket 32 and the driven sprocket 33 disposed in the upper case 41 and the lower case 42 are provided at positions that are ends in the conveyor 11. Therefore, in this embodiment, the position where the driving sprocket 32 provided in the upper case 41 is located is the head portion H of the conveyor 11, and the location where the driven sprocket 33 provided in the lower case 42 is located is the tail portion of the conveyor 11. Sometimes referred to as T. Further, the location where the driven sprocket 33 provided in the first connection case 44 and the second connection case 45 is located may be referred to as an intermediate portion M of the conveyor 11.

  As shown in FIGS. 1 and 2, the bucket chain 20 includes a chain 60 that is wound around a plurality of sprockets 30 and a plurality of buckets 70 that are swingably attached to the chain 60. The bucket 70 is disposed so as to be continuous in the traveling direction in which the chain 60 travels along the sprocket 30 and is provided so as to be able to accommodate a conveyed product. Further, the bucket 70 is configured so that an opening for accommodating a conveyed product faces upward due to the weight of the bucket 70 itself. The lower case 42 is provided with a loading port 46 for loading a conveyed product from the outside of the case 40 into the case 40. The insertion port 46 opens in the lower case 42 so as to face the bucket 70 attached to the chain 60 that moves upward in the lower case 42.

  On the other hand, in the upper case 41, a discharge port 47 is provided for discharging a conveyed product accommodated in the bucket 70 from the case 40 to the outside of the case 40. The discharge port 47 is provided at a position close to the first connection case 44 in the horizontal direction. In the upper case 41, a discharge rail 81 for tilting the bucket 70 is provided at a position above the discharge port 47. The discharge rail 81 tilts the plurality of buckets 70 attached to the chain 60 when they move above the discharge rail 81 in the upper case 41. And the conveyed product accommodated in the bucket 70 is dropped toward the discharge port 47 when the bucket 70 is inclined by the discharge rail 81. That is, the conveyor 11 conveys the conveyed product input from the input port 46 toward the discharge port 47.

  As shown in FIG. 3, the bucket chain 20 includes a two-strand chain 60 that is disposed at an interval in the width direction intersecting the traveling direction thereof, and a plurality of buckets 70 that are provided so as to be bridged over the two-strand chain 60. It consists of and. In addition, the advancing direction of the chain 60 in FIG. 3 is a direction from the right side to the left side, as indicated by a white arrow in FIG. The chain 60 includes an inner link 62 having a pair of inner link plates 61 opposed in the width direction and an outer link 64 having a pair of outer link plates 63 opposed in the width direction. The pair of outer link plates 63 are disposed so as to sandwich the pair of inner link plates 61 from the outside in the width direction. The chains 60 are alternately arranged so that the inner links 62 and the outer links 64 are in series, and the ends of the adjacent inner links 62 and the outer links 64 are connected to each other through the pins 65 so as to be endless. It is configured.

  A bush (not shown) is arranged between the end portions of the inner link plate 61 constituting the inner link 62 in order to keep the distance between the inner link plates 61. And by inserting the pin 65 in this bush, the inner link 62 and the outer link 64 are rotatably connected to each other. A roller 66 is provided between the end portions of the inner link plate 61 so as to be rotatable about the bush.

  Of the pair of outer link plates 63 constituting the outer link 64, a mounting bracket 91 for mounting the bucket 70 is attached to one outer link plate 63 on the side where the two chains 60 face each other in the width direction. ing. The mounting bracket 91 extends rearward from the base end portion attached to the outer link plate 63 in the traveling direction of the chain 60. A shaft 92 for supporting the bucket 70 is attached to the mounting bracket 91 at a tip portion opposite to the base end portion. The shaft 92 is mounted so as to be bridged between two mounting brackets 91 opposed to each other in the width direction, and is supported rotatably with respect to the mounting bracket 91. The bucket 70 is fixed to and supported by the shaft 92. That is, the bucket 70 is attached to the chain 60 via the mounting bracket 91 and is configured to be swingable with respect to the mounting bracket 91. The bucket 70 may be configured to swing with respect to the shaft 92 fixed to the mounting bracket 91.

  Further, the mounting bracket 91 has a bent portion 93 that bends toward the side where the bucket 70 is located at the middle portion from the base end portion toward the tip end portion. That is, when the bucket chain 20 is viewed from above, the mounting bracket 91 is provided so as to form a substantially crank shape by the bent portion 93. Since the rigidity of the mounting bracket 91 is improved by the bent portion 93, the bucket 70 can be stably supported.

  The buckets 70 are arranged at equal intervals in the traveling direction of the chain 60. Further, the bucket 70 is provided with flange-shaped edges 71 at both ends on the front side and the rear side. Of the two buckets 70 adjacent to each other in the traveling direction of the chain 60, the bucket 70 includes an edge 71 on the rear side of the bucket 70 located on the front side and an edge 71 on the front side of the bucket 70 located on the rear side. It is configured to be able to overlap vertically. In FIG. 3, the edge of the bucket 70 is positioned so that the rear edge 71 of the bucket 70 located on the front side in the traveling direction of the chain 60 is located above the front edge 71 of the bucket 70 located on the rear side. 71 are overlapping each other. Since the edges 71 of the adjacent buckets 70 overlap with each other, there is no gap between the buckets 70 in the traveling direction, so that it is possible to continuously feed the conveyed product from the loading port 46. Further, the bucket 70 is provided with one columnar boss 72 at each end in the width direction. The boss 72 is provided so as to be in contact with the discharge rail 81 disposed in the upper case 41. That is, the bucket 70 is inclined by the boss 72 being guided by the discharge rail 81.

  As shown in FIGS. 2 and 3, the chain 60 that moves around the case 40 is wound around the sprocket 30, so that the traveling direction thereof is changed along the sprocket 30. For example, in the head portion H and the tail portion T of the conveyor 11, the chain 60 is bent along the sprocket 30 so that the traveling direction of the chain 60 is reversed in the horizontal direction. That is, the winding angle of the chain 60 with respect to the drive sprocket 32 in the upper case 41 and the driven sprocket 33 in the lower case 42 is 180 °. Further, in the intermediate portion M of the conveyor 11, the chain 60 is curved along the sprocket 30, so that the traveling direction of the chain 60 is changed from the horizontal direction to the vertical direction or from the vertical direction to the horizontal direction. Among these, guide rails 82, which are examples of guide members for guiding the chain 60, are arranged in the case 40 at two places where the traveling direction of the chain 60 is changed from the horizontal direction to the vertical direction. The two guide rails 82 are provided at positions adjacent to each of the driven sprockets 33 that change the traveling direction of the chain 60 from the horizontal direction to the vertical direction, and are disposed behind the driven sprocket 33 in the traveling direction of the chain 60. ing.

  Here, when attention is paid to the head portion H of the conveyor 11, the overlapping of the edges 71 of the adjacent buckets 70 in the traveling direction of the chain 60 is changed by the chain 60 moving while being curved along the drive sprocket 32. Yes. When the chain 60 moves in the upper case 41 toward the drive sprocket 32 from the first connection case 44 side, of the two buckets 70 adjacent to each other in the traveling direction of the chain 60, The edges 71 of the buckets 70 overlap with each other so that the rear edge 71 is located above the front edge 71 of the bucket 70 located on the rear side. On the other hand, when the chain 60 moves downward in the upper case 41 from the drive sprocket 32 toward the first connection case 44 side, the rear edge 71 of the bucket 70 located on the front side is located on the rear side. The edges 71 of the bucket 70 are overlapped with each other so as to be positioned below the edge 71 on the front side.

  More specifically, when the chain 60 starts to engage with the drive sprocket 32, the chain 60 bends along the drive sprocket 32 as compared to before the chain 60 engages with the drive sprocket 32. However, the tip portion is displaced slightly upward while being displaced slightly downward. When the distal end portion of the mounting bracket 91 is displaced upward, the bucket 70 supported by the mounting bracket 91 is also displaced upward. At this time, the mounting bracket 91 rotates around a pin 65 that connects the outer link 64 to which the mounting bracket 91 is mounted and the inner link 62 positioned behind the outer link 64. Therefore, the distance in the horizontal direction between the adjacent buckets 70 in the traveling direction of the chain 60 increases, and the overlapping of the edges 71 of the buckets 70 is released. That is, the bucket 70 moves so that the edge 71 on the rear side of the bucket 70 located on the front side of the two adjacent buckets 70 avoids the edge 71 on the front side of the bucket 70 located on the rear side.

  When the chain 60 is disengaged from the drive sprocket 32, the bucket 70 moves so that the edge 71 on the front side of the bucket 70 located on the rear side slides above the edge 71 on the rear side of the bucket 70 located on the front side. . And the edges 71 of the bucket 70 overlap again. In this manner, the chain 60 moves along the drive sprocket 32 while bending without causing the edges 71 of the bucket 70 to interfere with each other. The same applies to the inside of the lower case 42 serving as the tail portion T of the conveyor 11.

  Next, attention is paid to the intermediate portion M of the conveyor 11. The driven sprocket 33 that changes the traveling direction of the chain 60 from the vertical direction to the horizontal direction is arranged such that the winding angle of the chain 60 is 90 °. On the other hand, the driven sprocket 33 that changes the traveling direction of the chain 60 from the horizontal direction to the vertical direction is arranged such that the winding angle of the chain 60 guided by the guide rail 82 is larger than 90 °. Yes. The guide rail 82 guides the chain 60 extending along the horizontal direction toward the driven sprocket 33 adjacent to the guide rail 82. The driven sprocket 33 is curved so as to meander the chain 60 together with the guide rail 82, thereby changing the traveling direction of the chain 60 from the horizontal direction to the vertical direction. Here, attention is paid to the intermediate portion M located on the upper side of the intermediate portion M of the conveyor 11.

  As shown in FIG. 4, in the chain 60 guided along the horizontal direction by the guide rail 82, the edge on the rear side of the bucket 70 located on the front side among the two buckets 70 adjacent in the traveling direction of the chain 60. The edges 71 of the bucket 70 overlap each other so that 71 is positioned below the edge 71 on the front side of the bucket 70 positioned on the rear side. The guide rail 82 guides the chain 60 to be pulled up once before the chain 60 meshes with the driven sprocket 33, thereby releasing the overlapping of the edges 71 of the bucket 70. That is, the chain 60 moves while being curved along the driven sprocket 33 in a state where the overlapping of the edges 71 of the bucket 70 is released by the guide rail 82. Therefore, the traveling direction of the chain 60 is changed from the horizontal direction to the vertical direction without the edges 71 of the buckets 70 interfering with each other.

  As shown in FIG. 5, for example, consider a configuration in which the guide sprocket 33 is not provided and the driven sprocket 33 is arranged so that the winding angle of the chain 60 is 90 °. In the case of such a configuration, when the traveling direction of the chain 60 is changed from the horizontal direction to the vertical direction by bending the chain 60 along the driven sprocket 33, the two buckets 70 adjacent in the traveling direction are The edges 71 interfere with each other so that the rear edge 71 of the bucket 70 located on the front side pushes up the front edge 71 of the bucket 70 located on the rear side. If the edges 71 of the bucket 70 interfere with each other, the chain 60 may be prevented from moving. Therefore, the conveyor 11 according to the present embodiment is provided with the guide rail 82 so that the chain 60 can move around the case 40 so that the edges 71 of the bucket 70 do not interfere with each other. The same applies to the intermediate portion M located on the lower side of the intermediate portion M of the conveyor 11, and the guide rail 82 guides the chain 60 to be pulled down once before the chain 60 meshes with the driven sprocket 33. The traveling direction of the chain 60 is changed from the horizontal direction to the vertical direction without the edges 71 of the bucket 70 interfering with each other.

Next, the operation of the pivoted bucket conveyor configured as described above will be described.
It is known that the chain 60 wound around the sprocket 30 is curved so as to form a polygonal shape along the sprocket 30, so that the polygon 60 moves with the rotation of the sprocket 30. When the chain 60 moves in a polygonal shape, a string vibration is generated in the chain 60 that includes a longitudinal vibration that vibrates in the extending direction of the chain 60 and a lateral vibration that vibrates in a direction that intersects the extending direction. When string vibration occurs in the chain 60, the vibrating chain 60 (specifically, the roller 66) collides against the sprocket 30, and the chain 60 and the sprocket 30 are worn or noise is generated. In particular, since a greater tension is applied to the chain 60 when the chain 60 is engaged with the sprocket 30 than when the chain 60 is engaged with the sprocket 30, the string vibration is noticeable when the chain 60 is engaged with the sprocket 30.

  In this respect, since the conveyor 11 of this embodiment guides the chain 60 immediately before the guide rail 82 meshes with the sprocket 30, the string vibration of the chain 60 that occurs when the chain 60 meshes with the sprocket 30 is more effective by the guide rail 82. Reduced to That is, the guide rail 82 in the present embodiment has a role of reducing string vibration generated in the chain 60 in addition to a role of avoiding interference between the edges 71 of the bucket 70.

According to said embodiment, the following effects can be acquired.
(1) The string vibration of the chain 60 that occurs when the chain 60 meshes with the sprocket 30 positioned forward in the traveling direction of the chain 60 is suppressed by the guide rail 82 that is disposed behind the sprocket 30 in the traveling direction of the chain 60. That is, the guide rail 82 for avoiding the edges 71 of the bucket 70 from interfering with each other also has a role of reducing the string vibration of the chain 60. Therefore, the string vibration of the chain 60 can be suppressed by the guide rail 82 that is originally provided without providing a new configuration. Therefore, the string vibration of the chain 60 due to the polygonal motion can be reduced.

  (2) Since the bucket 70 is attached to the chain 60 via the attachment fitting 91, the bucket 70 can be attached to the chain 60 more firmly than the configuration in which the bucket 70 is directly attached to the chain 60. it can.

(3) Since the mounting bracket 91 has the bent portion 93, the rigidity of the mounting bracket 91 can be improved.
(4) The guide rail 82 is arrange | positioned in the conveyor 11 in the location where the advancing direction of the chain 60 changes from a horizontal direction to a vertical direction. In other words, in the configuration in which the sprocket 30 is disposed so that the chain 60 moves in a crank shape, the guide rail 82 is provided at a portion excluding the head portion H and the tail portion T that are end portions in the pivoted bucket conveyor 11. Be placed. Therefore, the structure of the head part H and the tail part T can be simplified.

  (5) Since the wrap angle of the chain 60 with respect to the drive sprocket 32 is 180 °, the drive of the chain 60 is larger than the configuration in which the wrap angle of the chain 60 with respect to the drive sprocket 32 is 90 °. Can transmit power.

In addition, you may change said embodiment as follows.
In addition to the guide rail 82, the guide member may be constituted by a drum whose peripheral surface has a guide function, for example. That is, the drum whose axis is along the horizontal direction (for example, the direction orthogonal to the paper surface of FIG. 1) is disposed at the position where the guide rail 82 is provided in the above embodiment. Then, in the case that as one link in the chain 60 (the inner link 62 or the outer link 64) is applied to the peripheral surface of the drum, guided toward the sprocket 30 side by the guide rail 82 and the chain 60 in FIG. 4 You may guide similarly.

The winding angle of the chain 60 with respect to the drive sprocket 32 may be larger than 180 ° or smaller.
The conveyor 11 is not limited to a configuration in which a total of six sprockets 30 are provided. For example, two sprockets 30 may be provided in each of the head portion H and the tail portion T of the conveyor 11 and a total of eight sprockets 30 may be provided.

The bucket 70 may be directly attached to the outer link plate 63 of the chain 60 without providing the attachment bracket 91.
The mounting bracket 91 may not be provided with the bent portion 93, and the mounting bracket 91 may be a flat plate member extending along the traveling direction of the chain 60.

  DESCRIPTION OF SYMBOLS 11 ... Pivoted bucket conveyor (conveyor), 30 ... Sprocket, 32 ... Drive sprocket, 33 ... Driven sprocket, 60 ... Chain, 70 ... Bucket, 71 ... Edge, 82 ... Guide rail (guide member), 91 ... Mounting bracket, 93 ... bent portion.

Claims (5)

A plurality of buckets attached so as to be swingable with respect to an endless chain wound around the plurality of sprockets, an edge on the rear side of the bucket located on the front side of two buckets adjacent in the traveling direction of the chain; A pivoted bucket conveyor in which the front edge of the bucket located on the rear side can be overlapped vertically,
A guide member for guiding the chain to avoid interference between edges of the adjacent buckets when the chain is curved and moved along the sprocket;
The guide member is located at two locations adjacent to each of the two sprockets of the plurality of sprockets, where the travel direction of the chain changes from a horizontal direction to a vertical direction in the travel direction of the chain. The sprocket is a pivoted bucket conveyor that is disposed behind the chain so that the winding angle of the chain guided by the guide member is greater than 90 ° .   The pivoted bucket conveyor according to claim 1, wherein the bucket is attached to the chain via a mounting bracket.   The pivoted bucket conveyor according to claim 2, wherein the mounting bracket has a bent portion that bends in a width direction of the chain that intersects a traveling direction of the chain.   The pivoted bucket conveyor according to any one of claims 1 to 3, wherein the guide member is disposed at a position where the traveling direction of the chain changes from a horizontal direction to a vertical direction. The sprocket has one drive sprocket that rotates to drive the chain to circulate, and a plurality of driven sprockets that rotate following the rotation of the drive sprocket via the chain,
The pivoted bucket conveyor according to any one of claims 1 to 4, wherein the chain has a winding angle with respect to the drive sprocket of 180 °.

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