JP4845208B2 - Chain conveyor device and residual prevention device - Google Patents

Description

TECHNICAL FIELD OF THE INVENTION

  The present invention relates to a chain conveyor device used for carrying in and out grain from a silo, and a residue preventing device that can be incorporated into the chain conveyor device. The chain conveyor device includes a duct having two end portions and a feeding port and a discharging port for a conveyed product, a conveyor chain disposed in the duct and moving the conveyed product from the charging port to the discharging port, and a residual prevention device.

Conventional technology

  In a mill, a grain feed factory, an oil refinery, a grain silo, etc., a chain conveyor device is generally used for conveying grains such as wheat and soybeans. The chain conveyor device includes a duct having two end portions and a feeding port and a discharging port for a conveyed product, and a conveyor chain that is arranged in the duct and moves the conveyed product from the charging port to the discharging port. In the chain conveyor apparatus, the grain residue remaining at the end of the duct is a source of grain pests (such as Kokuzo, Noshimamearameiga, Kokunosutomodoki). In order to prevent this, it is necessary to periodically remove the top lid of the duct and clean the ends to remove the residue. In addition, when a pest occurs, it is necessary to disinfect the insect by supplying an insecticide such as a toxic hydrogen phosphide or a fumigant (DDVP preparation) into the duct.

In addition, if grains remain at the end of the duct of the chain conveyor device, there is a problem that when different kinds of grains are conveyed, the different kinds of grains are mixed into the conveyed grains. In order to avoid such a problem of heterogeneous mixing, it is necessary to clean and remove residues. A conventional technique related to such a problem is disclosed in Patent Document 1. Patent document 1 discloses the movement prevention apparatus of the residual prevention board and chain wheel of a granular material conveyance conveyor. The movement adjusting device of Patent Document 1 keeps the distance between the chain wheel and the residual prevention plate constant so that the advance / retreat mechanism of the chain wheel shaft support and the advance / retreat mechanism of the residual prevention plate are synchronized by one input operation. And an input synchronization mechanism that is driven. Also included is an injection nozzle that injects air downward along the curved inner surface of the residual prevention plate.
JP 2002-68451 A

  An object of the present invention is to provide a chain conveyor device including a residue prevention device that has a simple structure that prevents residue from remaining at the end of a duct of the chain conveyor device and is easy to operate. More specifically, it is to provide a chain conveyor device including a residual prevention device that can easily move forward and backward in response to the forward and backward movement of the shaft support portion of the chain wheel. Moreover, the objective of this invention is providing the chain conveyor apparatus provided with the cleaning function in the chain so that a residue may not remain in the duct which accommodates a chain conveyor apparatus. A further object of the present invention is to provide a residual prevention device that can be easily attached to the end of a chain conveyor device. Other objects, advantages, and advantages of the present invention will become apparent from the following description and claims.

  The chain conveyor device of the present invention has two end portions and a duct having an inlet and an outlet for a conveyed product, a conveyor chain arranged in the duct and moves the conveyed item from the inlet to the outlet, and at each end of the duct. A chain wheel disposed adjacent to and engaged with the conveyor chain, as well as a residual prevention device. In the chain conveyor apparatus of the present invention, the residual prevention device includes a residual prevention plate having a curved plate corresponding to the outer peripheral shape of the chain wheel, and a turnbuckle that fixes the residual prevention plate to a predetermined position of the duct. In the chain conveyor device according to the present invention, the duct has an upper lid, a lower plate, and two facing side plates that surround a cylindrical space extending between the two end portions of the duct in a substantially horizontal direction. Furthermore, two fixing members are included. The fixing member has a flange portion and a flat plate portion, and the side edge of the curved plate and the flange portion of the fixing member are fixedly fixed. The turnbuckle extends between the two fixing members and can be fixed by pressing the flat plate portion of the fixing member to a predetermined position on the side plate of the duct.

  The chain conveyor apparatus of the present invention preferably includes one or a combination of the following features. (1) A packing material is disposed between the flat plate portion of the fixing member and the side plate of the duct. (2) The flange portion of the fixing member has a slot having a long axis in the horizontal direction. The curved plate has a bolt with one end fixed to the side edge and the other end protruding from the slot. By screwing a nut member into the other end of the bolt, the side edge of the curved plate and the flange portion are fixed in an adjustable manner. (3) The conveyor chain includes a plurality of feed blades and a felt member fixed to the feed blades and slidable with respect to the bottom plate of the duct. (4) The end portion of the duct includes a transparent plate, and the residual preventing plate and its vicinity can be seen through the transparent plate. (5) The turnbuckle includes two bolts arranged coaxially and threaded in opposite directions, and a buckle, the buckle being engaged with two screws of each of the two bolts. Has screw holes.

  The residual prevention apparatus of the present invention is a chain conveyor apparatus including a duct having two end portions and a feeding port and a discharging port for a conveyed product, and a conveyor chain that is disposed in the duct and moves the conveyed product from the charging port to the discharging port. Incorporated. The duct includes a cylindrical space surrounded by an upper lid, a lower plate, and two side plates facing each other, and the conveyor chain is engaged with a chain wheel disposed adjacent to an end of the duct. It circulates in the duct. The residual prevention device includes a residual prevention plate having a curved plate having a shape corresponding to the outer peripheral shape of the chain wheel, and a turnbuckle for fixing the residual prevention plate to a predetermined position of the duct.

  The residue prevention device of the present invention preferably includes one or a combination of the following features. (1) The residual prevention plate includes a curved plate having two side edges parallel to each other and two fixing members, and the fixing member has a flange portion and a flat plate portion, and the side edge of the curved plate and the flange of the fixing member The part is fixedly adjustable. (2) The turnbuckle extends between the two fixing members and presses the flat plate portion of the fixing member to a predetermined position on the side plate of the duct. (3) The flange portion of the fixing member has a slot having a long axis in the horizontal direction, and the curved plate has a bolt having one end fixed to the side edge and the other end protruding from the slot, By screwing a nut member into the other end, the side edge of the curved plate and the flange portion are fixedly fixed.

  The chain conveyor apparatus provided with the residual prevention device of the present invention does not leave a residue of the article conveyed to the end of the duct, so that when the article to be conveyed is changed, the chain conveyor apparatus needs to be disassembled and cleaned. The problem of mixing different kinds of articles can be prevented. Moreover, it is possible to prevent the generation of pests due to the residue. The residual prevention device of the present invention can be easily attached to the end of the chain conveyor device by operating the turnbuckle. Further, since the attachment position can be easily moved, it is possible to easily cope with the adjustment movement of the chain wheel. The residual preventing device of the present invention is adjustable between the curved plate and the fixing member, and the horizontal dimension (conveyor chain width direction) is variable, so that it can be easily inserted into the end of the duct. Yes, and can respond to changes in the horizontal direction of the duct. Other effects and advantages of the present invention will become apparent from the following description and claims, which refer to the drawings.

Embodiments of the Invention

  With reference to the drawings, a chain conveyor device and a residual prevention device of the present invention will be described. FIG. 1 is a schematic vertical sectional view of a chain conveyor device 1 according to an embodiment of the present invention, and FIG. 2 is a side view of the chain conveyor of FIG. FIG. 3 is a schematic perspective view of a residual prevention plate according to an embodiment of the present invention, and FIG. 4 is a schematic perspective view of a fixing member of the residual prevention plate according to an embodiment of the present invention. 1 to 4, the chain conveyor device 1 includes a duct 3 having two ends 18 (FIG. 1 shows only one end 18), and an inlet 11 and an outlet (not shown) for a conveyed product, A conveyor chain 22 arranged in the duct 3 to move a conveyed product from the inlet 11 to the outlet, a chain wheel 32 arranged adjacent to each end of the duct 3 and engaged with the conveyor chain 22, and a residual A prevention device 8 is included. The length of the duct is, for example, 50 m, and the position of the chain wheel 32 needs to be adjusted according to the length of the conveyor chain.

  The residual prevention device 8 of the present invention aims to prevent the residue 7 near the end of the duct that would occur in the absence of it. In the chain conveyor device, two chain wheels 32 (FIG. 1 only shows one chain wheel 32) arranged at both ends of the circulating conveyor chain 22 are provided with their support shafts to adjust the looseness of the conveyor chain 22. It is necessary for the 33 to be able to move toward and away from each other. In the present invention, the residual prevention device 8 of the chain conveyor device 1 includes a residual prevention plate 40 having a curved plate 42 corresponding to the outer peripheral shape of the chain wheel 32, and a turnbuckle that fixes the residual prevention plate 40 to a predetermined position of the duct 3. 70. The turnbuckle 70 can be moved and detached from the residual prevention plate 40 by a simple operation. Therefore, the turnbuckle 70 can be easily arranged at a predetermined position corresponding to the movement of the support shaft 33 of the chain wheel.

  In the chain conveyor apparatus 1 of FIG. 1, the duct 3 includes a cylindrical space that extends substantially horizontally between its two end portions 18 (FIG. 1 shows only one end portion 18). Is surrounded by an upper lid 13, a lower plate 14, and two side plates 15, 16 facing each other. The height of the duct is, for example, 60 cm, and the width dimension is, for example, 35 cm. The residual prevention plate 40 includes a curved plate 42 having two side edges parallel to each other, and two fixing members 52 and 62. The fixing members 52 and 62 have flange portions 54 and 64 corresponding to the side edges 44 of the curved plate 42 and flat plate portions 56 and 66 parallel to the side plate 15 or 16 of the duct, respectively. The side edges 44, 44 of the curved plate 42 and the flange portions 54, 64 of the fixing members 52, 62 are fixedly fixed. The thickness of the curved plate is, for example, 10 mm, and the curved portion of the curved plate 42 can be, for example, concentric with the chain wheel and have a curvature radius of 30 cm.

  FIG. 2 is a side view of the chain conveyor of FIG. 1 with the end plates removed, and as shown in the figure, between the flat plate portions 56 and 66 of the fixing member and the side plates 16 and 15 of the duct. A packing material 38 is disposed. The packing material 38 is preferably made of a sponge material, and seals between the flat plate portions 56 and 66 and the side plates 16 and 15 of the duct to prevent leakage of the conveyed product. The packing material 38 also applies an elastic force to both ends of the bolts 72 and 74 of the turnbuckle 70 to prevent the turnbuckle from loosening and to prevent a change in tightening force.

  FIG. 5 is a horizontal sectional view of a structure in which the side edge 44 of the curved plate 42 and the flange portion 54 of the fixing member 52 or 62 are fixedly fixed. As shown in FIG. 5, the flange portion 54 of the fixing member has a slot 55 (FIGS. 4 and 5) having a long axis in the horizontal direction, and the curved plate 42 has one end fixed to the side edge 44 and the other end. Has a bolt 43 protruding from the slot 55. The slot 55 has a major axis dimension of 28.5 mm and a perpendicular dimension to the major axis of 8.5 mm. As shown in FIG. 5, the nut member 46 is screwed into the other end (portion protruding from the slot 55) of the bolt 43, so that the side edge 42 of the curved plate and the flange portion 54 of the fixing member are fixed. Before the nut member 46 is screwed, the bolt 43 is movable in the slot along the horizontal long axis of the slot 55, so that the horizontal direction between the side edge 42 of the curved plate and the flange portion 54 of the fixing member The side edge 42 of the curved plate and the flange portion 54 of the fixing member can be adjusted in the horizontal direction.

  FIG. 6 is a schematic cross-sectional view of the turnbuckle 70 of the residual preventing device according to the embodiment of the present invention. As shown in FIG. 6, the turnbuckle 70 includes two bolts 72 and 74 and a buckle 76 that are arranged coaxially. The buckle 76 has two screw holes 77 that are threadedly engaged with each of the two bolts. The bolts 72 and 74 are threaded in different directions and are engaged with the screws cut in the holes 77 of the corresponding buckles 76, respectively. When the buckle rotates in one direction around the common axis of the bolt, the two bolt heads 73, 75 are moved away from each other and rotated in the other direction, the two bolt heads 73 and 75 move so as to approach each other. The distance between the two bolt heads 73 and 75 of the turnbuckle 70 is, for example, 35 cm (the lateral dimension of the duct).

  FIG. 7 is a rear view of the residual preventing device 8 according to the embodiment of the present invention (viewed from the end 18 of the duct), and shows a state in which three turnbuckles 70 are arranged at the end of the duct. As shown in FIG. 7, the flat plate portions 56, 66 of the fixing members 52, 62 engage with the heads 73, 75 of the two bolts 72, 74 of the turnbuckle 70. A pair of support fittings 57 and 67 are provided to support the 75 so as not to rotate around the axis. As shown in FIG. 7, the heads 73 and 75 of the two bolts 72 and 74 of the turnbuckle 70 are engaged with the support members 57 and 67 of the pair of fixing members, and the buckle 76 is connected to the heads 73 and 72 of the bolts 72 and 74. When 75 is rotated in a direction away from each other, the flat plate portions of the two fixing members are pressed against the side plates of the duct and fixed to the side plates. Further, when the buckle 76 is rotated in the direction in which the heads 73 and 75 of the bolts 72 and 74 approach each other, the flat plate portions of the two fixing members are separated from the side plates of the duct, and the residual prevention plate can be easily attached to the side plates. It is movable.

  Still referring to FIG. 1, the conveyor chain 22 includes a plurality of feed vanes 24 and a felt member 21 secured to the feed vanes. The felt member 21 is slidable with respect to the bottom plate 14 of the duct. With this structure, it is possible to remove the transported material from the duct in a short time (for example, several minutes) without performing separate cleaning by driving the conveyor chain without supplying the transported material from the inlet. is there. Further, the end 18 of the duct includes a transparent plate (not shown), and the residual prevention device 8 and its vicinity can be seen through the transparent plate. With this structure, the duct end and the residual prevention device 8 can be easily inspected.

1 is a schematic vertical sectional view of a chain conveyor device according to an embodiment of the present invention. FIG. 2 is a side view of the chain conveyor of FIG. 1 with the end plate removed. The schematic perspective view of the residual prevention board of the Example of this invention. The schematic perspective view of the fixing member of the residual prevention board of the Example of this invention. The schematic horizontal sectional view of the connection part of the curved board of a residual prevention board, and a fixing device. The schematic sectional drawing of the turnbuckle of the residual prevention apparatus of the Example of this invention. It is a rear view of the residual prevention apparatus of the Example of this invention.

Explanation of symbols

1: Chain conveyor, 3: Cylindrical space, 6: Conveyed object, 7: Residue, 8: Residual prevention device, 11: Loading port, 13: Top lid, 14: Bottom plate, 15, 16: Side plate, 17: Inspection port , 18: end plate (transparent plate), 21: felt plate, 22: conveyor chain, 24: feed blade, 30: conveyor end, 32: chain wheel, 38: packing material, 40: residual prevention plate, 42: curved plate 43: Countersunk screw, 44: Side edge, 46: Fastener, 52, 62: Fastener, 54, 64: Flange, 55: Slot, 56, 66: Flat plate part, 57: Fastener, 70: Turnbuckle, 72, 74: bolt, 73, 75: bolt head, 76: buckle, 77: screw hole.

Claims (10)

Adjacent to each end of the duct, the duct (3) having two ends and the inlet and outlet for the conveyed product, the conveyor chain (22) arranged in the duct and moving the conveyed item from the inlet to the outlet. A chain conveyor device comprising a chain wheel (32) arranged in engagement with the conveyor chain and a residual prevention device (8),
The residual prevention device (8) includes a residual prevention plate (40) having a curved plate (42) corresponding to the outer peripheral shape of the chain wheel, and a turnbuckle (70) for fixing the residual prevention plate to a predetermined position of the duct. A chain conveyor device.   The duct (3) has an upper lid (13), a lower plate (14) and two facing side plates (15, 16) surrounding a cylindrical space extending substantially horizontally between the two ends of the duct. The residual prevention plate (40) further includes two fixing members (52, 62). The fixing member has a flange portion (54, 64) and a flat plate portion (56, 66). The rim (44) and the flange portion of the fixing member are adjustably fixed, and the turnbuckle (70) extends between the two fixing members (52, 62) and ducts the flat plate portions (56, 66) of the fixing member. The chain conveyor device according to claim 1, wherein the chain conveyor device can be pressed and fixed to a predetermined position of the side plate.   The chain conveyor device according to claim 2, wherein a packing material (38) is disposed between the flat plate portions (56, 66) of the fixing member and the side plates (15, 16) of the duct.   The flange portion (54, 64) of the fixing member has a slot (55, 65) having a long axis in the horizontal direction. The curved plate (42) has one end fixed to the side edge and the other end from the slot. It has a projecting bolt (43), and a nut member (46) is screwed into the other end of the bolt (43) so that the side edge (44) of the curved plate and the flange portion are fixed in an adjustable manner. The chain conveyor apparatus in any one of Claim 2 or 3.   The conveyor chain (22) includes a plurality of feed blades (24) and a felt member (21) fixed to the feed blades and slidable with respect to a bottom plate of the duct. The chain conveyor apparatus as described.   The chain conveyor device according to any one of claims 1 to 5, wherein the end portion (18) of the duct includes a transparent plate, and the residual prevention plate and its vicinity can be seen through the transparent plate.   The turnbuckle (70) includes two bolts (72, 74) that are coaxially arranged and threaded in opposite directions, and a buckle (76), wherein the buckle includes each of the two bolts. The chain conveyor device according to any one of claims 1 to 6, wherein the chain conveyor device has two screw holes (77) engaged with the screws. A chain conveyor device (1) including a duct (3) having two ends and an inlet and outlet for a conveyed product, and a conveyor chain (22) arranged in the duct and moving the conveyed item from the inlet to the outlet. A residual prevention device (8) incorporated in
The duct includes a cylindrical space surrounded by an upper lid, a lower plate, and two side plates facing each other, and the conveyor chain (22) is a chain wheel (32) disposed adjacent to the end of the duct. ) And circulates in the duct,
The residual prevention device (8) includes a residual prevention plate (40) having a curved plate (42) having a shape corresponding to the outer peripheral shape of the chain wheel, and a turnbuckle (70) for fixing the residual prevention plate to a predetermined position of the duct. The residual prevention apparatus characterized by including. The residual prevention plate (40) includes a curved plate (42) having two side edges (44) parallel to each other, and two fixing members (52, 62), the fixing members being flange portions (54, 64) and It has a flat plate portion (56, 66), the side edge (44) of the curved plate and the flange portion (54, 64) of the fixing member are adjustably fixed, and the turnbuckle (70) has two fixing members ( The residual prevention device according to claim 8 , which extends between 52 and 62) and presses the flat plate portion (56, 66) of the fixing member to a predetermined position of the side plate (15, 16) of the duct.
  The flange portion (54, 64) of the fixing member has a slot (55) having a long axis in the horizontal direction. The curved plate (42) has one end fixed to the side edge (44) and the other end being the slot. A bolt (43) projecting from (55) is provided, and a nut member is screwed into the other end of the bolt (43) so that the side edge of the curved plate and the flange portion are fixedly fixed. Item 10. The residual prevention device according to Item 9.

Images