JP2013237552A - Carrier stand for belt conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a carrier roller to be exchanged very easily.SOLUTION: A carrier stand for a conveyer includes short in-stands 3 which stand up in an opposed shape from the central part of a horizontal bar material 1 which crosses under a carrier side belt (a) in a belt conveyor and has both ends supported by conveyor frames 2, long side stands 4 which stand up from both ends of the horizontal bar material, sidearms 5 each turnably supporting the inner end side via a support shaft at the low part of the in-stand, clamps 9 each allowing a laterally long hole 7 prepared at the outer end side of the sidearm to match with a longitudinally long hole 8 directing downward from the upper end of the side stand, and comprising a nut and a bolt inserted into the laterally long hole and the longitudinally long hole which are matched, and side rollers 12 each axially received by dropping and engaging both ends notched grooves 14 of the support shaft 13 to a top end bearing notch of projection pieces projected upward from an inner end and an outer end of the sidearm.

Description

  The present invention relates to a carrier stand for a belt conveyor, in which a side roller and a center roller can be replaced very easily.

  The roller for supporting the belt of the belt conveyor is composed of a pair of left and right side rollers and a center roller existing between the side rollers, and is provided so as to stand at both ends of the parallel bar material arranged before and after the conveyor frame. The side roller is supported on the side stand, and the center roller is supported on the in stand provided so as to stand up from the center of the bar material.

  The above-mentioned support is provided by notching the U-shaped bearing notches facing downward from the upper end surfaces of the side stand and the instand at both ends of the rotation support shafts of the side roller and the center roller by cutting them in parallel with each other. The rotary support shaft is supported in a non-rotating state by fitting and engaging with the groove when the groove is dropped (see, for example, Patent Document 1 and Patent Document 2).

  In addition, there is one in which a roller is replaced by tilting a stand (roller support portion) (see, for example, Patent Document 3).

No. 7-32487 Japanese Patent No. 2672075 JP-A-11-189319

  By the way, since the notch of the both ends of the rotating support shaft is dropped from above into the notch of the instand and the side stand standing up from the bar material of Patent Documents 1 and 2, the above-mentioned engagement is performed as the roller is replaced. When releasing the relationship, the belt needs to be lifted.

  For this reason, after passing the bar under the belt, the belt is lifted while pulling up both ends of the bar. There was a problem of lowering.

In addition, the three rollers supported by the in-stand and the side stand are arranged in series on a plane.
As a result, a large gap is formed between the opposite ends of the side roller and the center roller, so that the belt bites into the gap and the belt runs smoothly.

  Furthermore, in the method of tilting the stand of Patent Document 3, the fastening with the bolts and nuts is loosened to release the pressing state to the cross member, and then the roller support member is tilted. There was a problem that took.

In addition, the work efficiency of fixing the side roller after returning it after removing it (while maintaining the angle) is poor.
In particular, when a skirt is installed at the receiving part, there is a problem that workability is remarkably poor.

  Therefore, the present invention is to provide a carrier stand that solves the above-mentioned problems.

In order to solve the above-mentioned problems, the present invention is directed to a horizontal bar material supported at both ends by a conveyor frame across a carrier side belt in a belt conveyor, and standing upright from a central portion of the horizontal bar material. A short instand provided so as to extend, a long side stand provided so as to stand up against the instand from both ends of the horizontal bar material, and an inner end side via a support shaft in the low position of the instand The side arm that rotatably supports, the horizontally long hole provided on the outer end side of the side arm, and the vertically long hole directed downward from the upper end of the side stand are matched to each other. Clamps made of bolts and nuts inserted into the holes, and bearing notches facing downward from the upper ends of the projecting pieces projecting upward from the inner and outer ends of the side arm A side roller that is supported by being dropped and engaged, a side arm that rotatably supports one end side via a support shaft on an upper surface of a plate protruding from the both instands in the longitudinal direction of the belt, A center roller that is supported by dropping a notch groove on both ends of a support shaft into a bearing notch facing downward from the upper edge of the other end of the arm and engaging the shaft, and a contact state between the upper peripheral surface of the center roller and the belt is maintained. In this manner, a configuration is employed that includes locking means provided so as to prevent the lowering of the side arm relative to the plate and to release the lowering prevention.

  As described above, according to the carrier stander for a belt conveyor of the present invention, when the fastening tool is loosened and the outer end side of the side arm is lowered, the direction from the outward end of the laterally long hole to the inward end is Further, while the bolt of the fastening tool moves in the direction from the upper end to the lower end of the vertically elongated hole, the side arm swings around the support shaft in the descending direction, and as a result, the side roller is released (separated) from the belt.

  Then, it is possible to remove and replace the side roller that has released the notch groove of the support shaft from the bearing notch and released the engagement relationship of the notch groove with the notch. Work is easy because the part is on the side of the conveyor frame.

  Also, by releasing the lock by the locking means, the side arm can be rotated in the downward direction with respect to the plate, so the center roller held by the side arm is lowered and the center roller is released (separated) from the belt. To do.

  Then, it is possible to remove and replace the center roller, which has released the notch groove of the support shaft from the bearing notch and released the engagement relationship of the notch groove with the notch, very smoothly.

  Further, since the center rollers are arranged in a staggered manner with respect to the side rollers, there is no inconvenience that the belt bites between the edges of the rollers and damages the belt.

  In particular, even if a skirt for preventing spillage is installed on the upper side of the side roller, the side roller can be replaced without any trouble in the skirt, and the roller can be replaced smoothly even if a conveyed product is present on the belt.

It is a top view which shows embodiment of this invention. It is a partially notched enlarged front view same as the above. It is a partially notched enlarged front view on the side roller side. It is a partially cutaway front view which shows an effect | action same as the above. It is a partially notched front view which shows removal of a side roller. It is a vertical expansion front view which shows the relationship between a notch and a notch groove. It is an enlarged side view which shows a side roller and a center roller. It is a partially cutaway enlarged side view showing the support of the center roller. It is a partially cutaway side view showing the lowered state. It is a partially cutaway side view showing removal of the center roller. It is a vertical expansion front view which shows a lock pin.

Embodiments of the present invention will be described with reference to the accompanying drawings.
In the embodiment of the present invention, as shown in FIG. 1 to FIG. 8, both ends of a horizontal bar 1 that is parallel to the front and back across the carrier side belt a in the belt conveyor A are attached to the conveyor frame 2. Support through metal fittings.

  As is well known, the belt conveyor A is configured by a head pulley and a tail pulley, and an endless belt that spans the head pulley and the tail pulley (not shown).

  At the center of the horizontal bar 1, there are short instands 3 standing upright, and at both ends of the horizontal bar 1, long instands 3 are opposed to the instand 3 (above the instand 3. A side stand 4 having a long protruding length is provided.

  Further, the inner end side of the side arm 5 is rotatably supported at the lower part of the instand 3 via the support shaft 6, and the laterally long hole 7 provided on the outer end side of the side arm 5 and the upper end portion of the side stand 4. The vertical elongated holes 8 provided so as to face downward are matched with each other, and the bolts of the fasteners 9 including bolts and nuts are inserted into the matched horizontal elongated holes 7 and the elongated elongated holes 8.

  Further, a protruding piece 10 protruding upward from each of the inner end and the outer end of the side arm 5 is provided, and a bearing notch 11 is provided downward from the upper end surface of both protruding pieces 10. The side roller 12 is supported by the side arm by dropping and engaging the notch grooves 14 provided at the positions opposed to the outer peripheral surfaces of both ends of the support shaft 13 of the side roller 12.

  Further, one end of a side arm 23 is rotatably attached to the upper part of the opposing surface of the plate 21 protruding in the longitudinal direction of the belt a from the instand 3 via a support shaft 22, and the other end of the side arm 23 is A bearing notch 24 is provided downward from the edge, and a notch groove 27 provided at a position opposite to the outer peripheral surfaces of both ends of the support shaft 26 of the center roller 25 is dropped into the bearing notch 24 and engaged with the side arm 23. The center roller 25 is supported.

  In addition, after the notch groove 27 is dropped and engaged with the bearing notch 24, as shown in the figure, a "tsu" -shaped embedding piece 29 having a distal end attached to the side arm 23 via a shaft 28 is provided. 9 is rotated counterclockwise and the support shaft 26 is held by the holding piece 29 as shown in FIG. 6, the escape of the support shaft 26 with respect to the bearing notch 24 can be prevented.

  Further, the side arm 23 is provided with a locking means B that can prevent the lowering of the side arm 23 from being brought into contact with the upper peripheral surface of the center roller 25 with respect to the belt a and cancel the lowering prevention.

  As shown in FIGS. 8, 9 and 11, the locking means B has a through hole 31 in the plate 21, and the side arm 23 has a through hole 31 in contact with the belt a and the upper peripheral surface of the center roller 25. In addition to this structure, a pin 35 and a spring 36 are incorporated into a cylindrical guide 34 that is attached by welding or screwing the plate 21 or the like. The spring 36 is compressed when the pin 37 is pulled back by grasping the photographing 37 provided at the end of the pin 35, and the side arm 23 is rotated so that the upper peripheral surface of the center roller 25 contacts the belt a. When the pin 35 is automatically inserted into the hole 38 of the side arm 23 to prevent the side arm 23 from rotating in the descending direction, the configuration is not limited, but the other purpose is achieved. The It can have.

  With the above configuration, when replacing the broken side roller 12, if the fastening tool 9 is loosened and the outer end of the side arm 5 is pushed down (pulled down), the bolt of the fastening tool 9 is pulled from the upper end of the vertically long hole 8. The side arm 5 rotates in the clockwise direction in FIG. 4 with the support shaft 6 as a fulcrum while moving downward and from the outer end to the inner end of the laterally long hole 7.

  Then, since the upper peripheral surface of the side roller 12 is separated (separated) from the state shown in FIG. 3 as shown in FIG. 4 with respect to the belt a, first, the outer end side of the support shaft 13 of the side roller 12 in this situation. Is lifted so that the outer end side of the support shaft 13 escapes from the bearing cutout 11, and then the inner end side of the support shaft 13 escapes from the bearing cutout 11 to collect the side roller 12 shown in FIG. 5.

  After recovery, the inner end of the support shaft 13 of the new side roller 12 is dropped into the bearing notch 11 and engaged, and then the outer end of the support shaft 13 is dropped into the bearing notch 11 and engaged. Is raised to bring the upper peripheral surface of the side roller 12 into contact with the belt a, and then the fastener 9 is tightened.

  When replacing the broken center roller 25, after the holding of the support shaft 26 by the holding piece 29 is released, the bolt 32 of the locking means B is pulled out.

  Next, the pin 35 is pulled back by the photographing 37 gripped by the locking means B, and the tip of the pin 35 is pulled out from the hole 38.

  Under this condition, the side arm 23 is rotated in the downward direction, and the center roller 25 is separated (separated) from the belt a as shown by the solid line in FIG.

  Thereafter, the support shaft 26 is withdrawn from the bearing notch 24, and the center roller 25 is recovered as shown by a chain line in FIG.

  Next, after the end of the support shaft 26 of the new center roller 25 is dropped into the bearing notch 24 of the side arm 23 and engaged, the side arm 23 is rotated in the upward direction.

Then, the pin 35 is automatically fitted into the hole 38 to prevent the side arm 23 from rotating in the descending direction, and then the bolt 32 inserted into the through hole 31 is screwed into the screw hole 33.
Further, the outer end of the support shaft 26 is held by the holding piece 29.

  As shown in FIG. 3, if a through hole 53 that matches the protruding piece 52 provided in the side arm 5 is provided so as to overlap the protruding plate 51 provided in the side stand 4, the side arm 5 is lifted up. The side arm 5 is lifted at a constant angle by inserting a matching chin rod or the like into the matching through holes 53, and then the fastening operation of the fastener 9 is performed (effect of determining the side arm 9). In addition, the problem of clearance with the existing skirt rubber can be solved, and the work can be performed reliably.

A Belt conveyor a Belt B Locking means 1 Horizontal bar material 2 Conveyor frame 3 Instand 4 Side stand 5 Side arm 6 Support shaft 7 Horizontal long hole 8 Long vertical hole 9 Fastening tool 10 Projection piece 11 Bearing notch 12 Side roller 13 Support shaft 14 Notch groove 21 Plate 22 Support shaft 23 Side arm 24 Bearing notch 25 Center roller 26 Support shaft 27 Notch groove 28 Shaft 29 Holding piece 31 Through hole 32 Bolt 33 Screw hole 34 Guide 35 Pin 36 Spring 37 Shooting 38 Hole

Claims (1)

  A horizontal bar material supported at both ends of the conveyor frame across the carrier side belt in the belt conveyor, a short instand provided so as to stand upright from the center of the horizontal bar material, and the horizontal A long side stand provided so as to stand up against the instand from both ends of the bar material, a side arm that rotatably supports the inner end side via a support shaft in the lower portion of the instand, and the side A fastening tool composed of a bolt and a nut inserted into the matched horizontal hole and the vertical hole by matching a horizontal long hole provided on the outer end side of the arm with a vertical hole directed downward from the upper end of the side stand. And the side rails that are supported by dropping the notch grooves on both ends of the support shaft into the bearing notches facing downward from the upper ends of the protruding pieces projecting upward from the inner and outer ends of the side arm. And a side arm that rotatably supports one end side via a support shaft on the upper surface of the plate protruding from the both instands in the longitudinal direction of the belt, and downward from the upper edge of the other end of the side arm. A center roller that is supported by dropping a notch groove on both ends of the support shaft into the bearing notch that faces the shaft, and the contact between the upper peripheral surface of the center roller and the belt is maintained to maintain the contact state of the side arm with respect to the plate. A carrier stand for a belt conveyor, characterized by comprising locking means provided so as to prevent the descent and release the descent prevention.

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