JP2000136012A - Structure for belt conveyer connecting part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a drop of a carrying article from a clearance between a skirt part of a chute and a belt caused by flexure of the belt by the loaded carrying article without impairing the life of the belt, in a belt conveyer connecting part. SOLUTION: A carrying side 4a of a belt 4 provided on a belt conveyer connecting part 10 is supported with an impact roller 11 covering a flexible material, and the carrying side 4a directly below a skirt part 14 in the belt conveyer connecting part 10 is supported with an impact bar 17 provided along an extending direction of the skirt part 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a transfer structure of a belt conveyor, and more particularly to a structure in which a load is prevented from dropping and scattering without impairing the life of the belt.

[0002]

2. Description of the Related Art FIG. 3 is a conceptual diagram of a conventional belt conveyor device, and FIG. 4 is a sectional view taken along the line IV-IV of FIG.
The belt conveyor device 1 has a drive pulley 2 and a driven pulley 3 which are horizontally and parallelly installed at a required interval on a gantry 9 (FIG. 4). It has a configuration in which an endless belt 4 is stretched.
The upper side of the belt 4 is the transport side 4 as shown by the arrow A.
a, the lower side is the return side 4b.

[0003] The transport side 4a of the belt 4 is normally supported by a plurality of metal supporting rollers 5 on the back surface.

Reference numeral 6 denotes a chute provided on the upper side of the belt conveyor device 1. The chute 6 drops a conveyed material 7 supplied from a hopper (not shown) or another belt conveyor device onto the belt conveyor device 1. A connecting portion 10 is formed so as to be connected. Reference numeral 8 denotes an extended portion of the chute 6 extended in the direction in which the conveyed object 7 is sent out.

[0005] The transfer section 1 provided with the chute 6
The transport side 4a of the belt 4 at 0 is supported by an impact roller 11 whose outer periphery is covered with an elastic material such as rubber, and thereby the transported object 7 falling from the chute 6
It is designed to absorb shocks.

As shown in FIG. 4, the impact roller 11 has a horizontal central roller 11a and side rollers which are provided so as to be inclined with respect to the central roller 11a so that the outer end in the width direction is higher. 11b so as to support the belt 4 in a substantially U-shape.
On the other hand, similarly to the impact roller 11, the support roller 5 supports the belt 4 in a substantially U-shape by a horizontal central roller and side rollers. The support roller 5 and the impact roller 11 are rotatably supported by support legs 13 fixed on a support member 12 of the gantry 9.

[0007] A rubber skirt portion 14 extending along the longitudinal direction of the belt 4 is attached to the lower portion of the chute 6. 7 is prevented from falling off or scattering from the belt 4.

In the above configuration, when the rotation of the drive pulley 2 is driven, the transport side 4a of the belt 4 moves as shown by the arrow A while being supported by the support roller 5 and the impact roller 11, and returns from the drive pulley 2 The conveyed material 7 circulating again to the driven pulley 3 side through the side 4b and falling from the chute 6 is conveyed in the direction of the driving pulley 2 with the movement of the belt 4.

As described above, the supporting roller 5 and the impact roller 11 support the own weight of the belt 4 and the load of the conveyed object 7 and rotate freely so that the driving pulley 2 can rotate.
The driving force has been reduced. This function also contributes to the improvement of the life of the belt 4.

[0010]

In the above-described structure of the belt conveyer transfer section 10, the belt 4 is moved by the weight of the conveyed object 7 falling from the chute 6 and the impact load.
However, as shown in FIG.
5, a gap is formed between the skirt portion 14 and the belt 4 due to the bending 15, and the conveyed article 7 falls out and scatters from the gap to the outside, thereby contaminating the work site. .

FIG. 5 shows an example of the prior art which has already been proposed as a solution to this problem. The apparatus of FIG. 5 uses the impact roller 1 provided in FIG.
Instead of 1, a soothing impact mat 16 having a wear-resistant liner material with small frictional resistance is provided on the upper surface so as to support the entire lower side of the transfer side 4 a of the transfer unit 10. I have.

If the impact mat 16 as shown in FIG. 5 is provided, the problem that the gap 15 is formed between the skirt portion 14 of the chute 6 and the belt 4 is solved by clearly suppressing the bending 15 of the belt 4. Although there is an effect that can be achieved, the belt 4 slides on the upper surface of the impact mat 16 while receiving the impact force and load of the conveyed object 7 from the chute 6, so that the sliding resistance becomes extremely large, and There is a problem that wear is severe and the replacement period of the belt 4 is significantly reduced.

Furthermore, since the contact resistance of the belt 4 is large, there is a problem that the load for driving the driving pulley 2 for moving the belt 4 is significantly increased.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and relates to a belt conveyer connecting portion structure for preventing falling off and scattering of a load without impairing the life of a belt. .

[0015]

SUMMARY OF THE INVENTION The present invention relates to a belt conveyer connecting portion structure in which a conveyed object is dropped by a chute provided with a skirt portion on a belt whose conveying side is supported by a supporting roller. The transfer side of the transfer section of the belt conveyor is supported by an impact roller coated with an elastic material, and the transfer side immediately below the skirt portion in the transfer section of the belt conveyor is provided along the extending direction of the skirt section. The present invention relates to a belt conveyer connecting portion structure, which is supported by an impact bar.

The impact roller is constituted by a horizontal central roller and side rollers inclined such that the outer ends in the width direction are higher with respect to the central roller, and each of the side rollers has a shaft. The impact bar may be arranged between the two divided side rollers.

According to the present invention, the transfer side of the belt in the transfer portion is supported by the impact roller, and only the position directly below the skirt portion provided on the chute is supported by the impact bar. The bar suppresses the bending of the belt, whereby no gap is formed between the skirt portion and the belt, and the problem of falling off or scattering of the transported object can be prevented.

Since the transfer side immediately below the skirt portion in the transfer portion is supported by the impact bar provided along the extending direction of the skirt portion, the contact area between the belt and the impact bar is reduced to reduce friction. Resistance can be reduced, and belt wear can be suppressed, thereby extending the belt replacement period.

Further, since the frictional resistance can be reduced as described above, the driving load for moving the belt can be reduced.

Further, the impact roller is constituted by a horizontal central roller and an inclined side roller, and the side roller is divided into two in the axial direction and the impact bar is arranged therebetween, so that a continuous impact bar is provided. Since the belt directly below the skirt can be supported, the problem that a gap is formed between the skirt and the belt can be more reliably prevented. Most of the load due to the transported material acts on the central roller, the load acting on the side rollers is small, and the belt is supported by providing a continuous narrow impact bar between the divided side rollers. In addition, the sliding resistance between the belt and the impact bar can be kept to a necessary minimum, and the wear of the belt can be extremely reduced. Therefore, the effect on the life of the belt is extremely small.

[0021]

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

FIG. 1 is a partially exploded perspective view of a belt conveyor connecting portion structure showing an example of an embodiment of the present invention.
FIG. 2 is a sectional view taken along the line II-II of FIG. 1. The same parts as those in the prior art are denoted by the same reference numerals, and description thereof will be omitted.

As shown in FIGS. 1 and 2, an impact bar 17 which supports the lower surface of the transport side 4a along the direction in which the skirt portion 14 extends is provided directly below the skirt portion 14 in the transfer portion 10. Provided.

In the embodiment shown in FIGS. 1 and 2, the impact roller 11 is composed of a horizontal central roller 11a and an inclined side roller 11b, and the side roller 11b is divided into two side rollers 18 and 19 in the axial direction. , The impact bar 1 between the two divided side rollers 18 and 19.
7 are installed. Reference numeral 20 denotes a fixing member provided between the support legs 13 to support the impact bar 17. The impact bar 17 is provided at a position directly below the skirt portion 14 and has an upper surface formed by the side rollers 18, 1.
9, the height of which is substantially the same as the upper surface of the belt 4, and
a It comes into contact with the lower surface. In FIG. 2, reference numeral 21 denotes side rollers 18 and 19 which penetrate the impact bar 17.
Are rotatably supported by the support legs 13.

Next, the operation of the above embodiment will be described.

When the driving pulley 2 shown in FIG. 3 is driven to move the belt 4 in the direction of the arrow A in FIG. 1, a conveyed object 7 is moved from the chute 6 shown in FIGS. When dropped, the belt 4 receives the conveyed material 7 and conveys it in the direction of arrow A.

At this time, the transfer side 4a of the belt 4 in the transfer section 10 is bent between the impact rollers 11 due to the weight of the falling load 7 and the impact load. There is a gap between them.

However, as described above, only the position directly below the skirt portion 14 on the transport side 4a of the belt 4 is supported by the impact bar 17, so that the deflection of the belt 4 is suppressed by the impact bar 17, Accordingly, a gap is not generated between the skirt portion 14 and the belt 4, and the problem that the conveyed object 7 drops out of the belt 4 or scatters can be prevented.

The skirt portion 14 in the transfer portion 10
Since the transport side 4a located immediately below is supported by the impact bar 17 provided along the direction in which the skirt portion 14 extends, the contact area between the belt 4 and the impact bar 17 is reduced to reduce frictional resistance. Therefore, it is possible to extend the replacement period of the belt 4 by suppressing the wear of the belt 4.

Further, since the frictional resistance can be reduced as described above, the driving load for moving the belt 4 can be reduced.

Further, when the impact roller 11 is composed of a horizontal central roller 11a and an inclined side roller 11b, and the side roller 11b is divided into two parts in the axial direction and the impact bar 17 is disposed therebetween, a continuous The skirt portion 1 of the belt 4 by the impact bar 17 of the book
Since only the position directly below the belt 4 can be supported, the problem that a gap is formed between the skirt portion 14 and the belt 4 can be more reliably prevented. Most of the load due to the transported object 7 is in the central roller 11
a, the load acting on the side roller 11b side is small, and the belt 4 is supported by providing a continuous narrow impact bar 17 between the divided side rollers 18 and 19. The sliding resistance between the belt 4 and the impact bar 17 can be kept to a necessary minimum, and the abrasion of the belt 4 can be extremely reduced. Therefore, the belt 4
The effect on the life of the device is extremely small.

In the above embodiment, the impact bar 17 is provided between the divided side rollers 18 and 19 on both sides of the belt 4 so that the belt 4 just below the skirt portion 14 is provided.
The case where the belt 4 is supported from below,
Impact roller 1 supporting the lower surface of the transport side 4a
Even if a short impact bar 17 is provided between the two to support the belt 4, substantially the same effect can be obtained.
May be rotatably supported by the impact bar 17, and various changes may be made without departing from the scope of the present invention.

[0033]

According to the first aspect of the present invention, the gap between the skirt portion and the belt is made harder by increasing the adhesion of the contact portion between the skirt portion and the belt.
Dropping or scattering of the load can be prevented. Further, the frictional resistance between the impact bar and the belt can be suppressed to a low level, so that the durability of the belt can be remarkably improved as compared with the conventional impact mat.

According to the second aspect of the invention, the adhesion between the skirt portion and the belt can be further improved, the frictional resistance between the impact bar and the belt can be further improved, and the durability of the belt can be improved as compared with the first aspect. This has the effect.

[Brief description of the drawings]

FIG. 1 is a partially exploded perspective view showing an example of a belt conveyor connecting portion structure according to the present invention.

FIG. 2 is a sectional view taken along the line II-II of FIG.

FIG. 3 is a conceptual diagram of a belt conveyor device according to the related art.

FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3;

FIG. 5 is a front perspective view showing the arrangement of an impact mat according to the related art.

[Description of sign]

 Reference Signs List 4 Belt 4a Conveying side 5 Support roller 6 Chute 7 Conveyed object 10 Belt conveyor transit part (transit part) 11 Impact roller 11a Central roller 11b Side roller 14 Skirt part 17 Impact bar 18, 19 Side roller

Claims (2)

[Claims] 1. A belt conveyor connecting portion structure in which a conveyed object is dropped by a chute provided with a skirt portion on a belt whose conveying side is supported by support rollers, wherein the belt conveyor connecting portion is conveyed. The support side is supported by an impact roller coated with an elastic material, and the transfer side immediately below the skirt portion in the belt conveyor transfer portion is supported by an impact bar provided along the extending direction of the skirt portion. Belt conveyor connection structure. 2. The impact roller is composed of a horizontal central roller and side rollers inclined such that the widthwise outer end portions thereof are higher with respect to the central roller, respectively. Divided into two in the axial direction,
The belt conveyor connecting part structure according to claim 1, wherein an impact bar is arranged between the divided side rollers.