JP2009126662A - Roller for belt conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent scattering of matters adhered to a belt and wear of return roller support shafts and the belt caused by contact of the belt lower face with the support shafts by dividedly arranging return rollers only on right and left sides on the return side of a belt conveyor. <P>SOLUTION: This roller for the belt conveyor comprises the return rollers 5 dividedly arranged on the right and left sides and at least a double link 7 having a folding joint part 6, and is configured so that both side outer ends of the link 7 and inner ends of the return roller support shafts 8 of the return rollers 5 are interconnected. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a belt conveyor roller disposed on a return side of a belt conveyor.

  A so-called hollow roller having a configuration in which return rollers for supporting the return belt are arranged on the left and right sides to prevent the deposits on the lower surface of the return belt from scattering is already known.

  However, since the support shaft directly connecting the left and right return rollers is a straight line, the lower surface of the belt comes into contact with the support shaft due to the slack of the central portion between both side edges of the return belt. In addition to the occurrence, there is a disadvantage that the support shaft and the belt are worn.

Therefore, there is a structure in which a hanging portion that hangs downward is formed in the middle portion of the direct connection support shaft of the left and right return rollers, and this suspending portion avoids the contact of the bulging lower surface downward due to the slack of the return belt (for example, Patent Document 1).
Japanese Patent No. 3842728

  By the way, according to the configuration of Patent Document 1, since a return roller support shaft provided with a hanging portion is formed by bending at an intermediate portion of a metal pipe cut into a fixed size, forming a hanging portion using a press or a folding machine. There is a problem in that it takes a lot of work to increase the cost significantly.

In addition, since both ends of the return roller spindle are inserted and fixed to the other end of the return roller shaft of the left and right return rollers, the distance from one return roller to the other return roller through the return roller spindle There was also a problem that it became long and bulky at the time of shipment.
In particular, if there is an error in the fixed dimension of the return roller support shaft, the left and right return rollers cannot be smoothly attached to the left and right roller shaft support angles.

  Therefore, the present invention is to provide a roller for a belt conveyor that solves the above-mentioned problems.

  In order to solve the above-mentioned problems, the present invention comprises a return roller that is divided into right and left parts and at least two links that have a bent joint, and both outer ends of the link and the return of both return rollers. A configuration in which the inner end of the roller spindle is connected is adopted.

  Further, a configuration is adopted in which a return roller divided into left and right parts and a wire that can be loosened are connected, and both ends of the wire are connected to the inner ends of the return roller support shafts of the two return rollers.

  In addition, it consists of a return roller that is divided into left and right parts and a spring that can be loosened in a spiral or belt-like plate, and adopts a configuration in which both ends of this spring are connected to the inner ends of the return roller spindles of the two return rollers. To do.

  Then, when the outer support ends of the left and right return rollers are supported on both side support portions of the machine frame of the belt conveyor, the link is bent by its own weight, and between the ends of the wire and the spring is slacked downward by its own weight, The slanted link, the slackened wire, and the left and right return rollers connected by a spring maintain the inclined state of the return rollers, and the slackened link, the slackened portion of the wire, and the spring contact the belt. (Since links, wires, and springs) can be avoided to prevent deposits from scattering and dropping, and the wear of the links, wires, and springs can be eliminated. .

  As described above, according to the belt conveyor roller of the present invention, the outer end of the link having the bent joint portion is connected to the inner end of the return roller support shaft of the return roller divided and arranged on the left and right sides. By attaching the outer ends of the return roller support shafts of the left and right return rollers to the support parts on both sides of the conveyor frame, the link breaks due to its own weight.

  For this reason, it is possible to maintain the inclined state of the return roller divided and arranged on the left and right, and to avoid contact between the belt and the link due to the middle bent portion when the link is bent. In addition, the wear of the link and the belt can be eliminated by non-contact.

  In addition, since both ends of the wire and spiral spring are connected to both inner ends of the return roller support shaft of the return roller divided and arranged on the left and right, the outer ends of the return roller support shafts of the left and right return rollers are connected as described above. By attaching, a wire or a spring is loosened by its own weight or a spring effect, and a hanging portion in a bent state is formed.

  For this reason, the inclination of both return rollers is maintained, and the contact of the belt (with respect to the wire or spring) is avoided by the slack portion of the wire or spring to prevent the deposits from being scattered or dropped. There is an effect of eliminating wear of wires, springs and belts.

  And by using links, wires, and springs, the conventional process of forming hanging parts by bending at the middle part of the return roller support becomes unnecessary, and the load form in which both return rollers are arranged in parallel Therefore, the bulk is lowered, and there is an effect of eliminating inconvenience due to bulkiness at the time of shipment or storage.

  Embodiments of the present invention will be described with reference to the accompanying drawings.

  In the first embodiment of the present invention, as shown in FIG. 1, an endless belt 2 is stretched between a head pulley and a tail pulley (not shown) in the machine frame 1 to form a belt conveyor A. The carrier side of the belt 2 is supported by carrier rollers 4 installed between both sides of the machine frame 1 and the intermediate stand 3, and the return side of the belt 2 is supported by a return roller 5 of the present invention which will be described later.

  As shown in FIGS. 1, 2, and 3, the support return roller of the return side belt 2 includes return rollers 5 and 5 that are divided and arranged on the left and right sides, and at least two links 7 that have a bent joint portion 6. The outer ends of both sides of the link 7 and the inner ends of the return roller support shafts 8 of the return rollers 5 and 5 are connected to each other. As shown in FIGS. 1 and 4, after the outer end of the return roller support shaft 8 is passed through the large diameter portion of the brush-like through hole 10 provided in the both side support portions 9 of the machine frame 1, the small diameter of the through hole 10 is obtained. The return roller support shaft 8 is slid to the part, and the groove 11 provided at the opposite position of the outer peripheral surface of the end portion of the return roller support shaft 8 is fitted to both side edges of the small diameter portion of the through hole 10 to support the mounting. And non-rotation of the return roller spindle 8 Measure the equity. Of course, the outer end of the return roller support shaft 8 may be attached by other methods.

  As shown in FIG. 5, since the width of the groove 11 is increased with respect to the thickness of the plate of the support portion 9, the inclination (inward descent) of the return roller 5 with respect to the support portion 9 becomes somewhat free. Both return rollers 5 hang down.

In addition, the joint portion 6 includes a bolt 12 and a nut 13 in the illustrated case, and a plurality of through holes 14 are provided in the link 7, and the bolt 12 is inserted into a desired through hole 14 so that the length of the link 7 is increased. Can be adjusted.
And the link 7 is not limited to the illustrated two stations, but may be two or more stations.

  Further, as shown in FIGS. 6 and 7, the connection between both outer ends of the link 7 and the inner end of the return roller support shaft 8 is downward from the upper edge to the plate-like body 15 fixed to the outer end of the link 7 by welding. A U-shaped notch 16 is provided, and both side edges of the notch 16 are fitted into and connected to the groove 11 of the return roller support shaft 8 that drops into the notch 16.

  At this time, the return roller support shaft 8 is prevented from escaping from the notch 16 by the presser piece 18 that attaches both ends to the plate surface of the plate-like body 15 via screws 17, but is not limited and is connected by other methods. It is also possible to use existing rollers, and it is not necessary to process the end of the return roller support shaft 8 separately.

  Further, as shown in FIG. 8, the return roller 5 is also provided with a multi-stepped outer peripheral surface to suppress the adhesion of powder particles as much as possible. Further, as shown in FIG. The belt 2 is prevented from meandering by being placed on the back side (upper side) of the belt 2 and pressing down the belt 2.

  With the above configuration, when the return rollers 5 and 5 that support the return side of the belt 2 are installed in the machine frame 1, the links 7 and 7 that connect both the return rollers 5 and 5 are bent by the joint portion 6. Thus, contact between the belt 2 and the links 7, 7 is avoided (as shown in FIGS. 1, 2, 8), and there is no wear of the links 7, 7.

  Further, as shown in FIG. 10, since the return rollers 5 and 5 before use can fold the links 7 in parallel, the packing form is made low in volume and prevented from being bulky during shipment and storage.

  In the second embodiment of the present invention, as shown in FIGS. 11 to 13, it can be loosened at the inner end of the return roller support shaft 8 of the return rollers 5 and 5 that are divided and arranged on the left and right as in the first embodiment. The ends of the wire 21 are connected.

  For example, as shown in FIGS. 12 and 13, the return roller support shaft 8 and the wire 21 are connected by fixing the ends of the cap 22 to both ends of the wire 21 by welding or other methods. , The screw 23 screwed into the cap 22 is screwed into the groove 11 of the support shaft 8 and connected. However, the present invention is not limited, and the screw 23 may be connected by other methods.

  The support of the return roller support shaft 8 of the return rollers 5 and 5 with respect to the machine frame 1 is the same as in the first embodiment, and the description thereof is omitted.

  With the above configuration, when the return rollers 5 and 5 that support the return side of the belt 2 are installed, the wire 21 that connects both the return rollers 5 and 5 is loosened, and contact between the belt 2 and the wire 21 is avoided. Thus, there is no wear of the wire 21 or the belt 2.

  Moreover, as shown in FIG. 14, since the return rollers 5 and 5 before use can be arranged in parallel by bending the wire 21, the packing form is made low in volume and prevented from being bulky during shipment and storage.

  In the third embodiment of the present invention, as shown in FIGS. 15 to 17, as in the first embodiment, the inner end of the return roller support shaft 8 of the return rollers 5 and 5 that are divided and arranged on the left and right is spirally formed. The ends of the belt-like spring 31 are connected.

  In the illustrated case, the return roller spindle 8 and the spring 31 are connected by fixing one end of the cylinder 32 to both ends of the spring 31 by welding or the like, and the other end of the cylinder 32 is connected to the end of the return roller spindle 8. After fitting, the tip of the screw 33 screwed into the cylindrical body 32 is fitted into the groove 11 and connected, but may be connected by other methods.

  The support of the return roller support shaft 8 of the return rollers 5 and 5 with respect to the machine frame 1 is the same as in the first embodiment, and a description thereof will be omitted.

  With the above configuration, when the return rollers 5 and 5 that support the return side of the belt 2 are installed, the spiral or belt-like spring 31 that connects the two return rollers 5 and 5 is bent while being deformed, and the belt 2 Contact with the spring 31 is avoided, and the spring 31 and the belt 2 are not worn.

  Moreover, as shown in FIG. 18, since the return rollers 5 and 5 before use can be arranged in parallel with the spring 31 bent, the bulk is reduced and the bulk at the time of shipment and storage is prevented.

  As shown in FIG. 17, a tube 35 made of a soft synthetic resin or the like may be fitted on the outside of the spring 31.

  Further, when the spring 31 is a belt-like plate spring, the plate surface of the plate spring is moved up and down (so as to face the surface of the belt 2) so that bending and bending are facilitated.

  In addition, the return rollers 5 and 5 of the first, second, and third embodiments prevent the belt 2 from meandering when the inner end (opposing end) side is inclined downward when installed.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a longitudinal front view showing a first embodiment of the present invention. The enlarged front view which shows the principal part same as the above. The same part notch top view. The side view which shows the support of a return roller. The front view. The disassembled perspective view which shows the connection of a link and a return roller spindle. FIG. The front view which shows another return roller. The front view which has arrange | positioned the return roller to the upper side of a belt. The front view which shows the packing form of a return roller. The front view which shows 2nd Embodiment. The cross-sectional top view which shows the principal part same as the above. FIG. The front view which shows the packing form of a return roller. The front view which shows 3rd Embodiment. The cross-sectional top view which shows the principal part same as the above. The cross-sectional top view which shows the other example of a spring. The front view which shows the packing form of a return roller.

Explanation of symbols

A Belt conveyor 1 Machine frame 2 Belt 3 Stand 4 Carrier roller 5 Return roller 6 Joint part 7 Link 8 Return roller spindle 9 Support part 10 Through hole 11 Groove 15 Plate-like body 16 Notch 17 Screw 18 Pressing piece 21 Wire 22 Cap 23 screw 31 spring 32 cylinder 33 screw

Claims (3)

  It consists of a return roller divided and arranged on the left and right and at least two links having a bent joint, and the outer ends of both sides of the link are connected to the inner ends of the return roller spindles of the two return rollers. Roller for belt conveyor.   A belt conveyor roller comprising: a return roller divided into left and right parts; and a wire capable of loosening, wherein both ends of the wire are connected to inner ends of return roller support shafts of the two return rollers.   A belt comprising a return roller that is divided into left and right parts and a leaf spring that can be loosened in a spiral or belt shape, and both ends of the spring are connected to the inner ends of the return roller spindles of the two return rollers. Conveyor roller.

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