JP2009167009A - Belt conveyor device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a belt conveyor device capable of reducing the cause of damaging a conveyor belt. <P>SOLUTION: The conveyor belt 2 of the belt conveyor device 1 is equipped with a base belt 2, edge pieces, crosspieces, and a plurality of objects accommodation parts partitioned by a transporting surface, edge pieces, and crosspieces, and is arranged as set over between pulleys and moving in circulation in one direction so as to form a circulating path under guidance of a plurality of rollers, in which the circulating path includes an up-gradient transport part 23, an upper transport part 38 to transport the object(s) in the upper position via the up-gradient transport part 23, and a return part 21 to return each object accommodation part having rid of the object to the gradient transport part via the upper transport part 38, wherein as a pulley to guide the conveyor belt 2 in the return part 21, only a pulley to guide the conveyor belt 2 in contacting with the reverse surface of the base belt is provided, or otherwise no pulley is provided to guide the belt 2 in the return part 21. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a belt conveyor apparatus capable of reducing the cause of conveyor belt damage.

A belt conveyor device called a steeply inclined conveyor has an endless belt-like conveyor belt wound around a drive pulley installed at the top and a tail pulley installed at the bottom, and guided by a plurality of rollers to drive the drive pulley. It is a structure that circulates in one direction so as to form a circulation path by force.
As shown in FIG. 6, the conveyor belt 2 of the belt conveyor device 1 includes a base belt 7 that forms a conveying surface 6, a wave rail 9 as an ear beam 8, and a horizontal beam 10. The wave bars 9 are provided on both sides 6a; 6a in the width direction A of the conveying surface 6 of the base belt 7 so as to extend along the longitudinal direction B of the conveying surface 6 of the base belt 7. The conveyance surface 6 of the base belt 7 is provided on one side 11 of the width direction A on the surface 43 of the base belt 7 and on the other side 12 of the width direction A on the surface 43 of the base belt 7. It is formed by the surface portion of the base belt 7 located between the other wave bridge 9 provided. The side surface 14 between the side edge 7a in the width direction A on the surface of the base belt 7 and the side portion 13 provided with the wave bridge 9 contacts an outer peripheral surface 34 of a large-diameter roller 31 of a disk roller 30 described later. It functions as a guide surface 15 to be used. A plurality of horizontal bars 10 are provided so as to protrude from the conveyance surface 6 at predetermined intervals along the longitudinal direction B of the conveyance surface 6 so as to cross the conveyance surface 6 of the base belt 7 in the width direction A. Partition. Therefore, the conveyor belt 2 includes a plurality of transported object storage portions 16 that are partitioned by the transport surface 6, the ear beam 8, and the horizontal beam 10.
As shown in FIG. 5A, the circulation path 40 of the belt conveyor device 1 includes a carrier unit 20 and a return unit 21. In the case of the belt conveyor apparatus 1 called a Z-type layout steeply inclined conveyor, the carrier unit 20 includes a lower horizontal conveyance unit 22 for feeding a conveyance product into the conveyance object accommodation unit 16 and a conveyance accommodated in the conveyance object accommodation unit 16. An upwardly inclined conveying unit 23 that conveys an object from below to above and an upper horizontal conveying unit 24 that horizontally conveys an object conveyed from below to above via the upwardly inclined conveying unit 23 at an upper position. . The return unit 21 includes an upper horizontal return unit 25 that horizontally moves the transported product storage unit 16 that has discharged the transported product via the upper horizontal transport unit 24 at the upper position, and a transported product storage that passes through the upper horizontal return unit 25. The downward inclination return part 26 which moves the part 16 downward from the upper part, and the lower horizontal return part 27 which moves the conveyed product accommodating part 16 via the downward inclination return part 26 horizontally in a lower position, and sends it to the lower horizontal conveyance part 22 With.
That is, the conveyor belt that circulates in the transporting direction C between the tail pulley 4 and the lower disk roller 17 installed on the side of the tail pulley 4 that is in the transporting direction of the conveyor belt 2 forms the lower horizontal transporting part 22. To do. The conveyor belt 2 that circulates in the transporting direction C is raised between the lower disk roller 17 and the upper back bend pulley 18 installed on the upper side of the conveyor belt 2 on the side in the transporting direction C with respect to the lower disk roller 17. The inclined conveyance part 23 is formed. The conveyor belt 2 that circulates in the transport traveling direction C between the upper back bend pulley 18 and the drive pulley 3 installed on the side of the upper back bend pulley 18 that is in the transport traveling direction C of the conveyor belt 2 is an upper horizontal transport unit. 24 is formed. The conveyor belt that circulates in the return travel direction between the drive pulley 3 and the drive disk 3 and the upper disk roller 19 installed on the side of the conveyor belt 2 in the return travel direction D forms an upper horizontal return portion 25. To do. The conveyor belt 2 that circulates in the return traveling direction D is lowered between the upper disk roller 19 and the lower back bend pulley 18a installed below the conveyor disk 2 on the side in the return traveling direction D with respect to the upper disk roller 19. The inclined return part 26 is formed. The conveyor belt 2 that circulates in the return direction D between the lower back bend pulley 18a and the tail pulley 4 installed on the side of the lower back bend pulley 18a that is in the return direction of the conveyor belt 2 moves the lower horizontal return portion 27. Form.
As shown in FIG. 5C, the back surface bend pulley 36 is a roller that contacts the back surface 44 of the base belt 7 and guides the base belt 7 in the traveling direction.
As shown in FIG. 5B, the disk roller 30 contacts the guide surface 15 formed by the side surface 14 in the width direction A on the surface 43 of the base belt 7 to guide the base belt 7 in the traveling direction. It is a surface guide roller, and is provided with guide roller portions 33 each having a large diameter roller 31 and a small diameter roller 32 at both ends of the rotation center shaft 29. The guide surface 15 of the base belt 7 and the outer peripheral surface 34 of the large diameter roller 31 come into contact with each other, and the conveyor belt 2 is guided in the traveling direction. The small diameter roller 32 is formed to have a small diameter so as to avoid the ear cross 8, and the tip end portion 8 a of the ear cross 8 and the outer peripheral surface 35 of the small diameter roller 32 are usually not in contact with each other.
The upper disk roller 19 installed in the return portion 21 is used to change the traveling direction of the conveyor belt 2 in the return portion 21 to return the conveyor belt 2 from the upper side to the lower side, and to wind the base belt 7 around the drive pulley 3. It is provided for the purpose of increasing the angle α. When the winding angle α of the base belt 7 with respect to the drive pulley 3 is small, the conveyor belt 2 is easily loosened, and the drive pulley 3 and the back surface 44 of the base belt 7 are easily slipped and easily slipped. Therefore, it is necessary to set the driving force of the motor (not shown) to a large value. Therefore, in order to earn the winding angle α of the base belt 7, the upper disk roller 19 is provided at a position close to the upper back bend pulley 18 in the return portion 21, so that a winding angle α of about 180 degrees is obtained. .
Japanese Utility Model Publication No. 53-41904 JP 50-1139883 A

In the belt conveyor apparatus 1 provided with the upper horizontal conveyance unit 24 at the upper part of the carrier unit 20, in order to increase the winding angle α of the base belt 7 with respect to the drive pulley 3 provided at the terminal end 24 a of the upper horizontal conveyance unit 24. In addition, the upper disk roller 19 is provided at the end portion 25a of the upper horizontal return portion 25 in the return portion 21, but in the return portion 21, the conveyor belt 2 is pulled downward, so that the tension applied to the belt increases. This tension increases when the conveyor belt 2 is heavy, when the lift h (see FIG. 5A) of the belt conveyor device 1 is large, or when the conveyed material is heavy. Accordingly, when the disk roller 30 is provided in the return portion 21 where the tension applied to the conveyor belt 2 is increased, the base belt 7 is moved to the disk roller by applying tension to the conveyor belt 2 as shown in FIG. The portion other than the guide surface 15 portion supported by the outer peripheral surface 34 of the 7 large-diameter roller 31 is bent so as to move downward. If this deflection is large, the conveyor belt 2 is cracked, the tip 8a of the ear cross 8 is damaged by the contact between the tip of the ear cross 8 and the outer peripheral surface 35 of the small-diameter roller 32 of the disk roller 30, or the base belt 7 There is a problem in that a load is applied to the endless seam portion between the one end and the other end, causing the conveyor belt to be damaged such as peeling or cracking of the endless seam portion. This problem also occurs in the belt conveyor apparatus 1 having the reverse L-shaped layout shown in FIG. In FIG. 7, the same parts as those in FIG.
The present invention has been made in view of the above problems, and provides a belt conveyor device that can reduce the cause of damage to the conveyor belt 2.

The belt conveyor device according to the present invention includes a base belt, ear bars provided on both sides in the width direction on the transport surface of the base belt and extending along the longitudinal direction of the transport surface, and the transport surface of the base belt in the width direction. A plurality of horizontal rails that are provided at predetermined intervals along the longitudinal direction of the conveyance surface so as to cross the conveyance surface, and a plurality of conveyance object storage sections that are partitioned by the conveyance surface, the ear beam, and the horizontal beam. The conveyor belt is wound around a pulley and guided by a plurality of rollers to circulate in one direction so as to form a circulation path. An upwardly inclined conveying part that conveys the material from below to above, an upper conveying part that conveys the object that has been conveyed upward from below through the upwardly inclined conveying part, and an upper conveying part. Discharging things A return unit for returning the conveyed product storage unit to the inclined conveyance unit, and as the pulley for guiding the conveyor belt in the return unit, only the pulley that contacts the back surface of the base belt and guides the conveyor belt is provided, or the return unit In the present invention, a pulley for guiding the conveyor belt is not provided.
It is also characterized in that a lower transport unit for feeding a transported product into the transported product storage unit is provided in the preceding stage of the upward inclined transport unit.
A driving pulley for applying a driving force to the conveyor belt is also provided at the terminal end of the upper transport unit.
A driving pulley for applying a driving force to the conveyor belt is also provided at the end portion of the return portion.

According to the belt conveyor apparatus of the present invention, only the pulley that contacts the back surface of the base belt and guides the conveyor belt as a pulley for guiding the conveyor belt in the return portion is provided, or the pulley that guides the conveyor belt in the return portion. Since the base belt is not bent and bent at the return portion, the cause of damage to the conveyor belt can be reduced.
Since the lower conveyance unit for loading the conveyed product into the conveyed product storage unit is provided in the preceding stage of the upward inclined conveyance unit, the operation of loading the conveyed product into the conveyed product storage unit is facilitated.
Since the drive pulley for applying the driving force to the conveyor belt is provided at the terminal end of the upper transport unit, the above effect can be achieved without changing the layout of the belt conveyor device in which the drive pulley is installed at the terminal end of the upper transport unit. Is obtained.
Since the drive pulley that applies driving force to the conveyor belt is provided at the end of the return section, it is possible to increase the wrapping angle of the base belt with respect to the drive pulley, and to prevent the conveyor belt from slackening at the return section. At the same time, since the transport loss of the base belt can be reduced, the motor can be reduced in size.

Best form 1
FIG. 1 shows an airframe layout of the belt conveyor device 1. In FIG. 1, the same parts as those of the conventional example of FIG. 5A are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 1, the belt conveyor device 1 of the best mode 1 does not include a disk roller 30 (surface guide roller) in the return portion 21 in the belt conveyor device 1 of the conventional Z-type layout. Only the back surface bend pulley 36 that contacts the back surface of the base belt 7 and guides the conveyor belt 2 is provided.

  That is, the belt conveyor device 1 of the best mode 1 is a belt conveyor device 1 called a steeply inclined conveyor, in which an endless belt-like conveyor belt 2 is wound around a drive pulley 3 and a tail pulley 4, and a plurality of belt conveyor devices 1 The structure is such that it is guided by a roller and circulates in one direction so as to form a circulation path 40 by the driving force of the drive pulley 3.

  The belt conveyor device 1 is a conveyor belt 2 that circulates and moves horizontally in the transporting direction C between the tail pulley 4 and the lower disk roller 17 installed on the side of the conveyor belt 2 in the transporting direction C with respect to the tail pulley 4. The lower horizontal conveying portion 22 as the lower conveying portion 37 for feeding the conveyed product into the conveyed product accommodating portion 16, and the conveying direction C of the conveyor belt 2 with respect to the lower disc roller 17 and the lower disc roller 17. An upside-down bend pulley 18 formed by a conveyor belt 2 that circulates and moves so as to incline up in the transfer traveling direction C with respect to an upper backside bend pulley 18 installed on the upper side, and an upper backside bend pulley 18. Between the upper back bend pulley 18 and the drive pulley 3 installed on the side of the conveyor belt 2 in the conveyance traveling direction C The upper horizontal conveying portion 24 as the upper conveying portion 38 formed by the conveyor belt 2 that circulates and moves horizontally in the conveying traveling direction C, and the drive pulley 3 and the drive pulley 3 on the side in which the conveyor belt 2 returns. With respect to the lower backside bend pulley 18a and the lower backside bend pulley 18a formed by the conveyor belt 2 that circulates and moves so as to incline downward in the direction of return travel between the lower backside bend pulley 18a and the lower backside bend pulley 18a. And a lower horizontal return portion 27 as a lower return portion 39 formed by the conveyor belt 2 that circulates and moves horizontally in the return travel direction between the tail pulley 4 installed on the return travel direction side of the conveyor belt 2. .

  The carrier unit 20 of the circulation path 40 is configured by the lower horizontal conveyance unit 22, the upward inclined conveyance unit 23, and the upper horizontal conveyance unit 24, and the return inclination unit 26 of the circulation path 40 is configured by the downward inclination return unit 26 and the lower horizontal return unit 27. Is configured.

  In this embodiment, the conveyed product is transferred to the conveyed product storage unit 16 between the terminal end portion 21a of the return unit 21 and the start end portion 23a of the upward inclined conveyance unit 23 (that is, upstream of the upward inclined conveyance unit 23 in the circulation path 40). A lower horizontal conveyance portion 22 for feeding is formed, and a driving pulley 3 for applying a driving force to the conveyor belt 2 is provided at the end portion 24a of the upper horizontal conveyance portion 24 (that is, the end portion of the carrier portion 20). The configuration was as follows.

According to the best mode 1, since there is no disk roller in the return portion 21, the base belt 7 is not bent due to the disk roller. Therefore, even if tension is applied to the conveyor belt 2 in the return portion 21, the base belt 7 is warped. Therefore, the cause of the conveyor belt damage described above can be reduced. Moreover, the length of the conveyor belt 2 can be shortened. Furthermore, since the number of times of bending of the conveyor belt 2 at the disk roller 30 is reduced, the life of the conveyor belt 2 is extended.
Further, without changing the layout of the existing belt conveyor device 1 in which the driving pulley 3 is installed at the terminal end 24a of the upper horizontal conveying unit 24, the above effect can be obtained by eliminating the disk roller in the return unit 21. It will be obtained.
Moreover, since the lower conveyance part 37 which circulates in the lower part is provided, the operation | work of the conveyance thing to the conveyance object accommodating part 16 becomes easy. In particular, since the lower horizontal conveyance unit 22 that moves horizontally is provided as the lower conveyance unit 37, it is easier to load the conveyed product into the conveyance object storage unit 16 that moves horizontally.

Best form 2
As shown in FIG. 2, the disk roller 30 is not provided in the return part 21 in the belt conveyor apparatus 1 of the conventional Z-type layout, and the return part 21 contacts the back surface of the base belt 2 to guide the conveyor belt 2. While only the backside bend pulley 36 is provided, the drive pulley 3 is provided at the position of the tail pulley 4 of the conventional Z-type layout. The upper pulley 28 is provided at the position of the driving pulley 3 of the conventional Z-type layout so that the terminal portion 24a of the upper horizontal conveying unit 24 is provided. In other words, the drive pulley 3 is provided at the boundary portion between the lower horizontal conveyance portion 22 of the carrier portion 20 and the lower horizontal return portion 27 of the return portion 21 (that is, the end portion 21a of the return portion 21).

  In the best mode 2, the effect of the best mode 1 can be obtained, and the drive pulley 3 is provided at the boundary between the lower horizontal transport unit 22 of the carrier unit 20 and the lower horizontal return unit 27 of the return unit 21. The winding angle of the base belt 7 with respect to the pulley 3 can be set to 180 degrees. Therefore, the winding angle α of the base belt 7 with respect to the drive pulley 3 can be gained, the slack of the conveyor belt 2 at the return portion 21 can be prevented, and the slip between the drive pulley 3 and the back surface 44 of the base belt 7 can be prevented. Since the slip can be reduced and the transport loss of the base belt 7 can be reduced, a motor with a small driving force can be used, and the motor can be downsized.

Best form 3
As shown in FIG. 3, the configuration described in the best mode 1 is obtained by adopting a configuration in which neither the disk roller nor the back bend pulley 36 is provided in the return portion 21 in the belt conveyor device 60 of the conventional reverse L-shaped layout. be able to. As shown in FIG. 4, if the drive pulley 3 is provided on the side where the winding angle α of the base belt 7 can be obtained and the upper pulley 28 is provided at the position of the drive pulley 3 of the best mode 2, the best mode is obtained. The effect described in 2 can be obtained.

  In the best mode, the upper transport section, the lower transport section, and the lower return section are horizontal sections. However, the upper transport section, the lower transport section, and the lower return section may be configured to have a gentler slope than the tilt section.

The figure which shows the body layout of a belt conveyor apparatus (best form 1). The figure which shows the body layout of a belt conveyor apparatus (best form 2). The figure which shows the body layout of a belt conveyor apparatus (best form 3). The figure which shows the body layout of a belt conveyor apparatus (best form 4). (A) is a figure which shows the machine body layout (Z-type layout) of the conventional belt conveyor apparatus, (b) is AA sectional drawing of (a), (c) is BB sectional drawing of (a). The perspective view of a conveyor belt. The figure which shows the body layout (reverse L type | mold layout) of the conventional belt conveyor apparatus.

Explanation of symbols

1 Conveyor device 2 Conveyor belt 3 Drive pulley 4 Tail pulley
6 Conveying surface, 7 Base belt, 8 Ear cross, 10 Horizontal cross, 16 Conveyance storage part,
21 Return part, 22 Lower horizontal conveyance part (lower conveyance part), 23 Uphill inclination conveyance part,
24 Upper horizontal conveyance part (upper conveyance part), 30 Disc roller.

Claims (4)

  A base belt, an ear cross provided on both sides of the base belt in the width direction on the transport surface and extending along the length of the transport surface, and a longitudinal direction of the transport surface so as to cross the base belt transport surface in the width direction A conveyor belt having a plurality of horizontal bars provided at predetermined intervals along the line and partitioning the conveyance surface, and a plurality of conveyed object storage sections partitioned by the conveyance surface, the ear beam, and the horizontal beam is wound around a pulley. In a belt conveyor apparatus that is hung and guided by a plurality of rollers so as to circulate in one direction so as to form a circulation path, the circulation path transports the transported object stored in the transported object storage unit from below to above. An inclined transport unit, an upper transport unit that transports a transported product that has been transported from below to above via an upwardly inclined transport unit, and a transported material storage unit that discharges the transported product via the upper transport unit To the inclined conveyor The return part is provided with only a pulley for guiding the conveyor belt by contacting the back surface of the base belt as a pulley for guiding the conveyor belt at the return part, or no pulley for guiding the conveyor belt is provided at the return part. A belt conveyor device characterized by being configured as described above.   The conveyor apparatus according to claim 1, wherein a lower conveyance unit for feeding a conveyed product into the conveyed product storage unit is provided in a stage preceding the upward inclined conveyance unit.   The conveyor apparatus according to claim 1, wherein a driving pulley that applies a driving force to the conveyor belt is provided at a terminal portion of the upper transport unit.   The conveyor apparatus according to claim 1 or 2, wherein a driving pulley for applying a driving force to the conveyor belt is provided at an end portion of the return portion.

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