JP2014185011A - Inclinable carrier roller stand - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inclinable carrier roller stand in which stands can be smoothly inclined thereby achieving simple replacements of a horizontal roller and an inclined roller.SOLUTION: A carrier roller stand is so configured that a horizontal structural base (16) is attached to a conveyor frame, stands (18, 19) are fixed to the horizontal structural base, and a central horizontal roller for receiving a conveyor belt and right and left inclined rollers are so attached to the stand as to be replaceable. In the carrier roller stand, a notch (16A) is provided in the horizontal structural base (16) at a part which interacts with a portion (20A) on the conveyor frame side of the horizontal structural base when the stands (18, 19) are laterally inclined, a hinge is provided between an inner edge of the notch and the conveyor frame, and a revolving shaft (17) of the hinge is disposed at a position between both side ends of the stands, whereby the horizontal structural base can be rotated around the revolving shaft.

Description

  The present invention relates to a tilt-type carrier roller stand, and more particularly to a carrier roller stand in which a stand can be smoothly tilted so that a horizontal roller and an inclined roller can be easily replaced.

  The belt conveyor is structured so that the conveyor belt is looped endlessly between the driving roller and the driven roller, and the driving roller is rotated to rotate the conveyor belt. And is widely used in various factories and facilities.

  Normally, when transferring transported goods between belt conveyors, a structure is adopted in which the transport belt is dropped from the preceding belt conveyor to the connecting section of the next belt conveyor via a chute. The back side of the carrier side part of the conveyor belt is received and supported by the carrier roller, and if the dust of the transported material is scattered by the impact of the drop, the surrounding environment is deteriorated. It is done to cover the gap between.

  In the connecting portion, the conveyor belt is strongly pressed downward by the lower edge of the skirt and is strongly slidably contacted with the carrier roller, so that the roller is worn and the carrier roller may have to be replaced. The carrier roller is generally composed of a central horizontal roller and left and right inclined rollers, but the central horizontal roller is difficult to reach from the side of the conveyor belt and is strongly pressed against the conveyor belt. Therefore, it is difficult to replace as compared with the left and right inclined rollers.

  On the other hand, a horizontal base is extended to the conveyor frame in the horizontal width direction so that it can rotate around the central axis, and a stand that receives the central horizontal roller and left and right inclined rollers in a rotatable and detachable manner is fixed to the horizontal base. A tilt type carrier roller stand has been proposed in which the horizontal base is rotated from the standing position of the stand toward the tilt position so that the tilt roller and the horizontal roller can be exchanged (Patent Document 1).

  However, in the tilt type carrier roller stand described in Patent Document 1, it is necessary to mount the horizontal base extending in the horizontal direction so as to be rotatable around the mounting shaft, so that the structure is complicated, resulting in high costs, and at the connecting portion. Due to the necessity of providing a large number of carrier rollers, it has been difficult to employ a belt conveyor that requires a low price.

  On the other hand, a hinge shaft is provided on one side in the transfer direction with respect to the horizontal base, and the horizontal roller is exchanged by rotating the horizontal base around the hinge shaft from the stand standing position to the tilting position. An inclined carrier roller stand that can be used has also been proposed (Patent Document 2).

Japanese Utility Model Publication No. 06-80726 JP-A-11-189319

  In the tilt type carrier roller stand described in Patent Document 2, since only a hinge shaft is provided, there is little risk of incurring a complicated structure and high cost. However, when actually trying to rotate the horizontal base, the horizontal roller And the inclined roller competed strongly with the conveyor belt, and it was difficult to tilt the stand. In particular, it is very difficult to tilt the stand with a large-sized belt conveyor having a conveyor belt thickness as employed in steelworks and steelworks.

  An object of the present invention is to provide a tilt type carrier roller stand in which the stand is smoothly tilted so that the horizontal roller and the tilt roller can be easily replaced.

  Therefore, the tilt type carrier roller stand according to the present invention has a horizontal base attached to the conveyor frame, the stand is fixed to the horizontal base, and the central horizontal roller that receives the conveyor belt and the left and right inclined rollers can be exchanged on the stand. In the carrier roller stand attached to the horizontal base, a notch is formed in the horizontal base at a portion that interferes with the conveyor frame side portion of the horizontal base when the stand is tilted to the side. A hinge is provided between the inner edge of the notch and the conveyor frame, and the rotation axis of the hinge is disposed at a position between both side edges of the stand, and the horizontal base is rotatable about the rotation axis. It is characterized by becoming.

  In the tilt type carrier roller stand described in Patent Document 2, the rotation axis of the hinge is provided on the outer side in the transfer direction than the side edge of the stand, so when the horizontal base is rotated around the rotation axis, As the stand moves upward, tilting to the side starts. However, in the transfer section, the conveyor belt is strongly pressed downward by the elastic skirt plate and is strongly pressed against the horizontal roller or the inclined roller, so that the operator can tilt the stand while manually lifting the conveyor belt. Was very difficult.

  One of the features of the present invention is that a notch is formed in the corner of the horizontal base, a hinge is provided between the inner edge of the notch and the conveyor frame side, and the hinge shaft is disposed between both side edges of the stand. The horizontal base is rotated about the rotation axis.

  As a result, the rotation axis of the hinge is positioned within the width of the stand, and the notch is formed in the horizontal base, so that the stand can be tilted sideways as it is, and the operator can manually convey the conveyor belt. There is no need to lift up, and the horizontal roller and the inclined roller can be exchanged smoothly by tilting the stand lightly.

  Here, in the claims, “the stand is tilted to the side” does not mean that the stand is tilted to the side without being lifted at all, but the stand tilts by overcoming the tension of the conveyor belt. This means that the case where the stand moves upward to such an extent that can be performed is included.

  In the above, the notch is formed in the horizontal base. However, if the rotation axis of the hinge is positioned coaxially with the axis of the horizontal base, the notch is not necessary.

  The tilt type carrier roller stand according to the present invention has a horizontal base attached to a conveyor frame, the stand is fixed to the horizontal base, and a central horizontal roller that receives the conveyor belt and left and right inclined rollers are attached to the stand in a replaceable manner. In the carrier roller stand configured as described above, the first bearing is fixed to both ends of the horizontal base coaxially with the axis of the horizontal base, and the second bearing is fixed to the conveyor frame. And the second bearing is inserted with a rotating shaft, the first and second bearings are formed with flanges, both the flanges are detachably connected, and the flanges are disconnected, so that The rack base is rotatable about the rotation axis.

  In addition, the tilted carrier roller stand according to the present invention has a great effect when applied to a belt conveyor connecting part, but is applied to other places, places where the belt tension of the conveyor belt is large, such as near a driving roller or a driven roller. However, the same effect is obtained.

  The horizontal base may have a closed cross-sectional triangle shape as shown in the following embodiment, or a closed cross-sectional square shape, a closed cross-sectional circular shape, or other closed cross-sectional shapes. It is important that the notch is formed in a portion that interferes with the conveyor frame side portion when the horizontal base is rotated as it is, so that the rotation of the horizontal base is not hindered. For example, when the horizontal base has a closed cross-sectional triangle shape, the bottom corner of the triangle may be cut out.

It is a figure which shows an example of the belt conveyor provided with preferable embodiment of the inclination type carrier roller stand which concerns on this invention. It is a front view which shows the said embodiment. It is an enlarged view which shows the hinge attachment part in the said embodiment. It is an exploded view which shows the hinge attachment part in the said embodiment. It is a figure which shows typically the operation | movement in the said embodiment. It is an enlarged view which shows the hinge attachment part in 2nd Embodiment. It is a front view which shows 3rd Embodiment. It is an enlarged view which shows the hinge attachment part in the said embodiment.

  Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings. 1 to 5 show a preferred embodiment of a tilt type carrier roller stand according to the present invention. In the figure, the conveyor frame 10 is provided with a driven roller 11 on one end side and a driving roller 12 on the other end side, and a conveyor belt 14 is stretched between the driving roller 12 and the driven roller 11 in an endless manner. The conveyor belt 14 is circulated by the rotation of the roller 12 to transport the transported goods.

  Further, a connecting portion 14A is provided on the other end side of the conveyor belt 14, transported goods from the preceding belt conveyor are supplied to the connecting portion 14A via a chute 30, and a lower end edge of the chute 30 is provided on the lower end edge of the chute 30. An elastic skirt plate 31 is attached to shield the gap between the chute 30 and the connecting portion 14A and prevent dust from being scattered around.

  The conveyor frame 10 is provided with a plurality of carrier rollers at intervals in the traveling direction. As shown in FIG. 2, the carrier roller includes a horizontal base 16. The horizontal base 16 has a closed cross-sectional triangle shape and is provided extending in the horizontal width direction of the belt conveyor. A first stand 18 having a square shape is erected, and a pair of second stands 19 are erected between the horizontal base 16 at intervals.

  The first and second stands 18 and 19 are made of channel steel, the upper end outer portion of the second stand 19 is cut into an inclined side shape, and a plate is stretched between them and fixed. Insertion recesses are formed in the upper edges of the second stands 18 and 19 and the plate so that the rotation shafts of the central horizontal roller 15A and the left and right inclined rollers 15B are detachably fitted.

  Further, at both ends of the horizontal base 16, when the first and second stands 18 and 19 are tilted sideways as they are, the corners of the horizontal base 16 on the conveyor frame 10 side, in this example, hinges A notch 16 </ b> A is formed at a portion that interferes with the plate 20, and a hinge is provided between the inner edge of the notch 16 </ b> A and the conveyor frame 10, and is prevented from coming off by a stopper 24.

  The hinge is configured such that a bearing 17A is fixed to one hinge plate 20, the rotating shaft 17 is rotatably inserted into the bearing 17A, and the other hinge plate is fixed to the rotating shaft 17. The one hinge plate 20 is a conveyor frame. 10 is fixed by a bolt 21 and a nut 22.

  The other hinge plate is fixed to the inner surface of the notch 16 </ b> A of the horizontal base 16, and a mounting piece 16 </ b> B is fixed to the end of the horizontal base 16, and this mounting piece 16 </ b> B is connected to one hinge plate by a bolt 21 and a nut 22. 20 together with the conveyor frame 10.

  The rotation shaft 17 of the hinge is provided between both side edges of the first stand 18, that is, within the lateral width, so that the first and second stands 18 and 19 can be horizontally mounted so that they are tilted sideways as they are. The base 16 can be rotated.

  Further, a stopper 23 is fixed upright on one hinge plate 20 of the hinge, and comes into contact with the peripheral edge of the notch 16A of the horizontal base 16 to restrict the rotation of the horizontal base 16 to, for example, 45 °. ing.

  When exchanging the horizontal roller 15A and the inclined roller 15B, the bolt 21 and the nut 22 for fixing the mounting piece 16B are loosened and removed, and the operator holds the first stand 18 in his hand and tilts it to the side.

  Then, the horizontal base 16 pivots about the rotation shaft 17 of the hinge. At that time, the corner of the horizontal base 16 is cut away, and the corner of the horizontal base 16 and one hinge on the conveyor frame 10 side. Since the plate 20 does not interfere with each other, and the rotation shaft 17 of the hinge is located within the lateral width of the first stand 18, the horizontal base 16 rotates and the first and second stands 18, 19 are As shown in FIG. 5, it can be tilted sideways as it is, that is, without moving upward.

  When the first and second stands 18 and 19 are tilted by 45 °, the periphery of the notch 16A comes into contact with the stopper 23 and the rotation of the horizontal base 16 is restricted, and the first and second stands 18 and 19 are controlled. Is held in a 45 ° inclined posture, so that when the operator lifts the horizontal roller 15A and the inclined roller 15B with his / her hand, the horizontal roller 15A and the inclined roller 15B are inserted and recessed without being obstructed by the conveyor belt 14. Can be easily removed, and after that, a new horizontal roller 15A and inclined roller 15B may be set.

  FIG. 6 shows a second embodiment, in which the same reference numerals as those in FIGS. 1 to 5 denote the same or corresponding parts. In this example, a mounting pin 21A and a cotter 25 are used instead of the bolt 21 and nut 22 in the first embodiment, and the mounting pin 21A is inserted into the insertion holes of the conveyor frame 10, the hinge plate 20 and the mounting piece 16B. A hinge is attached to the conveyor frame 10 by driving a cotter 25 into the insertion hole 2A of the pin 21A.

  In this example, the stands 18 and 19 can be tilted by inserting / removing the cotter 25, and the operation can be easily performed as compared with the case where the bolt 21 and the nut 22 are used.

  7 and 8 show a third embodiment, in which the same reference numerals as those in FIGS. 1 to 6 denote the same or corresponding parts. In this example, a first bearing 28 made of a circular pipe is fixed to both ends of the horizontal base 16, and a mounting plate 210 of a second bearing 29 made of a circular pipe is fixed to the conveyor frame 10, and the first and second The two bearings 28 and 29 are formed with flanges 28A and 29A, and the flanges 28A and 29A are detachably fixed to each other by bolts and nuts or mounting pins and a cotter. Although not shown, a stopper that restricts the tilt of the stand 18 at a certain angle is provided as in the first embodiment.

  When the horizontal roller 15A and the inclined roller 15B are replaced, the horizontal roller 15A and the inclined roller 15B can be replaced by disconnecting the flanges 28A and 29A of the bearings 28 and 29 and tilting the stands 18 and 19.

  The feature of this example is that the bearings 28 and 29 and the rotating shaft 27 are only provided at both ends of the carrier roller stand, so that it can be applied to an existing carrier roller stand, and its practical effect is enormous.

  In the above example, the other hinge plate is fixed to the inner surface of the notch 16A of the horizontal base 16, but the rotary shaft 17 may be directly fixed to the inner surface of the notch 16A.

DESCRIPTION OF SYMBOLS 10 Conveyor frame 11 Driven roller 12 Drive roller 14 Conveyor belt 14A Connection part 16 Horizontal base 16A Notch 17 Rotating shaft 20 One hinge plate 23 Stopper 27 Rotating shaft 28 First bearing 29 Second bearing 28A, 29A Flange 30 chute 31 elastic skirt board

Claims (3)

In the carrier roller stand where the horizontal base is attached to the conveyor frame, the stand is fixed to the horizontal base, and the central horizontal roller that receives the conveyor belt and the left and right inclined rollers are attached to the stand in a replaceable manner.
The horizontal base (16) is notched at a portion that interferes with the conveyor frame side portion (20A) of the horizontal base (16) when the stand (18, 19) is tilted sideways ( 16A) is formed, and a hinge is provided between the inner edge of the notch (16A) and the conveyor frame (10), and the rotational axis (17) of the hinge is positioned between the side edges of the stand (19). The tilt type carrier roller stand, wherein the horizontal base (16) is rotatable about the rotation shaft (17). In the carrier roller stand where the horizontal base is attached to the conveyor frame, the stand is fixed to the horizontal base, and the central horizontal roller that receives the conveyor belt and the left and right inclined rollers are attached to the stand in a replaceable manner.
A first bearing (28) is fixed to the horizontal base (16) coaxially with the axis of the horizontal base (16), and a second bearing (29) is fixed to the conveyor frame (10), A rotary shaft (27) is inserted through the first bearing (28) and the second bearing (29), and flanges (28A, 29A) are formed in the first and second bearings (28, 29). The flanges (28A, 29A) are detachably connected, and the horizontal base (16) can be rotated around the rotation shaft (27) by disconnecting the flanges (28A, 29A). Tilt-type carrier roller stand characterized by   The tilting type carrier roller stand according to claim 1, wherein the horizontal base (16) has a triangular shape with a closed cross section, and a bottom corner of the triangle is cut out.

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