JP5885290B2 - Carrier roller for belt conveyor - Google Patents

Description

  The present invention relates to a carrier roller for supporting a carrier side of a belt constituting a belt conveyor.

  As is well known, the carrier roller for supporting the carrier side belt of the belt conveyor is composed of a center roller and a pair of upwardly inclined side rollers disposed on both sides of the center roller. The three rollers are arranged in a straight line on the plane.

  According to such a configuration, 60% or more of the total load is applied to the center center roller, and the remaining load is applied to the side rollers on both sides, so that the load applied to the center roller is dispersed and the center of the belt is also distributed. There is a carrier roller for a belt conveyor in which bending between rollers is reduced to reduce resistance due to belt transfer (see Patent Document 1).

Korean Patent Publication No. 10-0620132

  By the way, as for the thing of patent document 1, a side roller is supported on both sides on a conveyor frame, and the longitudinal direction both ends of a belt can move up and down freely in the center part (between side rollers) of a conveyor frame. The middle is supported by the support means, and the center roller is supported at both ends of the rotating frame. That is, the load is distributed by the front and rear parallel center rollers.

  However, when replacing a broken center roller, the belt is lifted with respect to the center roller by lifting the bar material passed under the belt or lifting the belt, and while maintaining the belt's floating state, no load is applied. Since the center roller is changed, it takes much time to push up the belt and it takes a long time to replace the center roller. That is, there is a problem that the operation of the belt conveyor is stopped for a long time.

  Therefore, the present invention is that the center roller can be replaced very smoothly, that is, the operation of the belt conveyor can be stopped for a short time.

In order to solve the above-mentioned problems, the present invention attaches both ends of a horizontal member that crosses under the carrier side belt to the left and right sides of the conveyor frame, and a pair of side surface side roller stands that stand up from the left and right ends of the horizontal member, and A pair of center side roller stands that stand up from the left and right of the center of the horizontal member are provided, and the opposite side surface side roller stand and center side roller stand support the opposite ends of the center support shafts of the two side rollers. and, the upper end via a support shaft in both center side Sa id roller stand, and ends of the pair of downstream arms facing the front end in the running direction side of the belt, the running direction of the belt opposite to the pair of left and right facing the tip a distal upstream arm while rotatably supported, two center rollers of that the tip and the tip of both upstream arms of both downstream arm Supporting the ends of respective of the center shaft, attaching the ends of the support bracket in the middle and the middle and the left and right of the center-side side roller stands of both downstream arm freely at least one end of the through mounting bracket detachable, also the A configuration is adopted in which at least one end of the other support bracket is detachably attached to the middle of both the upstream arms and the middle of the left and right center side roller stands through a mounting bracket .

  As described above, according to the carrier roller for a belt conveyor of the present invention, it is possible to reduce the resistance to crossing over the center (center) roller. That is, by reducing the load of 60% or more of the center roller by half, the life of the center roller is also extended and durability is improved, and when the center roller breaks down, support (attachment) of the end of the support bracket by the mounting bracket is performed. By releasing, the tip end side of the upstream arm or the downstream arm can be lowered, so that the center roller can be released from the carrier belt.

  For this reason, the center roller can be replaced very smoothly in a short time, and as a result, there is an excellent effect that the operation stop of the belt conveyor is extremely short.

  Further, by releasing the fixing of the end of the support bracket by the mounting bracket, the downstream arm and the upstream arm can be rotated and assembled in parallel.

  For this reason, it is possible to reduce the bulk and eliminate the inconvenience of bulky storage and transportation.

It is a top view which shows embodiment of this invention. It is an enlarged plan view which shows the principal part same as the above. It is the longitudinal cross-sectional enlarged side view. It is a partially cutaway front view same as the above. It is the same part notch enlarged plan view. It is a vertical side view which shows replacement | exchange of a center roller.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
1 to 5 of the embodiment is an endless belt of the belt conveyor A. FIG.

Reference numeral 1 denotes a horizontal member having both ends attached to the upper left and right edges of the conveyor frame B through fasteners or the like across the carrier side belt a.

On the left and right ends of the horizontal member 1 and on the left and right of the central portion , side-side side roller stands 2a and 2a and center-side side roller stands 2b and 2b , respectively, are provided so as to face each other. Both ends of the side roller 3 are supported by the side surface side roller stand 2a and the center side roller stand 2b facing each other.

As is well known, both ends of the side roller 3 are supported by, for example, outer ends of a center support shaft 21 projecting from both end surfaces of the side roller 3 into a notch 20 provided downward from the upper edges of the side roller stands 2a and 2b. The center support shaft 21 is supported in a non-rotating state by dropping the groove 22 provided at the face-facing position in an engaging manner.

Since the left and right side rollers 3 are inclined upward and inclined outward, the protruding length of the center-side side roller stand 2b is above the side-side side roller stand 2a of the conveyor frame B. It is shorter than the length of protrusion.

Further, both the center-side sub id roller stands 2b, the upper end of 2b, a terminal of the pair of left and right downstream arms 4 facing the tip in the running direction of the belt a, pair facing the tip in the opposite direction of the running direction of the belt a The end of the upstream arm 5 is rotatably attached via a horizontal support shaft 6.

In the illustrated case, the support shaft 6 protrudes on the opposite side of the travel direction of the belt a and the travel direction of the belt a on the plate 7 fixed to the opposing surfaces of the center side roller stands 2b and 2b. The end of the downstream arm 4 and the end of the upstream arm 5 are rotatably attached to the end via a support shaft 6 made of a bolt and a nut. However, the support shaft is directly connected to the center side roller stand 2b. The ends of the downstream arm 4 and the upstream arm 5 can also be rotatably attached via

A center roller 8 is supported so as to be exchangeable between both ends of the left and right downstream arms 4 and between both ends of the left and right upstream arms 5.

  As shown in the figure, as the support means capable of replacing the center roller 8, a method similar to the method of the side roller 3 is adopted as is well known, but is not limited and other methods may be adopted.

Further, Ri Oh mounted detachably via a mounting member 12 at least one end of the middle and to the support bracket 11 and the middle of the left and right both downstream arm 4 right and left center side side roller stands 2b, left and right of both upstream arms 5 At least one end of another support bracket 11 is detachably attached via a mounting bracket 12 in the middle and in the middle of the left and right center side roller stands 2b .

In the illustrated case, the mounting bracket 12 includes a bolt inserted into the matching through hole 10 and a nut screwed into the bolt, and is provided at the downstream arm 4 and the upstream arm 5 and one end of the support bracket 11. The bolts of the mounting bracket 12 are inserted into the holes 10 and are provided at the other ends of the support bracket 11 and the through holes 10 provided at both ends of the plate piece 13 fixed by welding or the like in the middle of the center side roller stand 2b. The bolts of the mounting bracket 12 are inserted into the through-holes 10 so that both ends of the support bracket 11 are detachable. However, one end side may not be attached or detached with a scissors or the like, and the other end side may be detachable.

  Of course, the mounting bracket 12 is not limited to bolts and nuts, and other removable brackets may be used.

  With the above configuration, when the center roller 8 is replaced for some reason, the mounting bracket 12 is first removed to release the support at one end of the support bracket 11.

  As a result, the center roller 8 can be lowered while the upstream arm 5 or the downstream arm 4 that has been lifted upward is moved in the tilting direction as shown in FIG. 6, so that the belt a is pushed up or lifted. Therefore, the center roller 8 can be replaced very smoothly and quickly.

  After the center roller 8 is replaced, the downstream arm 4 or the upstream arm 5 is pushed up (by moving in the direction in which it is raised), and then the end of the support bracket 11 is returned to its original position and attached via the mounting bracket 12.

  Note that when storing and transporting before shipment, if the support by the mounting bracket 12 at one end of the support bracket 11 is released and the downstream arm 4 and the upstream arm 5 are folded in parallel, the bulk becomes low. Becomes easier.

A Belt conveyor a Belt B Conveyor frame 1 Horizontal material
2a Side roller stand
2b Center side side roller stand 3 Side roller 4 Downstream arm 5 Upstream arm 6 Support shaft 7 Plate 8 Center roller 10 Through hole 11 Support bracket 12 Mounting bracket 13 Plate piece 20 Notch 21 Center support shaft 22 Groove

Claims (1)

At the left and right sides of the conveyor frame, both ends of a horizontal member crossing under the carrier side belt are attached, and a pair of side roller stands that stand up from the left and right ends of the horizontal member and a pair of centers that stand up from the left and right of the center of the horizontal member provided side side roller stand, both ends of the support of each of the center shaft of the opposite side surface side roller stands and the center-side side roller stand two side rollers, the upper end of the both center side Sa id roller stands via a support shaft, a distal end of the pair of downstream arms facing the front end in the running direction side of the belt, with the ends of the pair of upstream arms facing the front end on the opposite side of the running direction of the belt is rotatably supported , this tip and distal end of both upstream arms of both downstream arms to support both ends of each of the center shaft of the two center rollers, the both Attaching both ends of the support bracket to the middle of the middle and the left and right of the center-side side roller stand flow arm freely at least one end of the through mounting bracket detachable, also the middle and the left and right of the center-side side roller stands of both upstream arms A carrier roller for a belt conveyor , wherein at least one end of another support bracket is detachably attached to the middle of the support bracket via a mounting bracket .

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