JPH1120931A - Conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To certainly remove an adhered material to a protrusion provided with a conveyor belt over a long period of time without special maintenance of a conveyor by arranging a wire brush downward of the conveyor belt. SOLUTION: A wire brush 5 is provided at an end position of a conveyor 1, that is, at a position at a time when a conveyor belt 3 reaches a conveyor top side by inverting a movement direction from a conveyor top side to be moved for carrying of a carrying material at the end of a conveyor main body 2. The conveyor belt 3 moves in a direction indicated by an arrow b. When the wire brush 5 is provided at such a position, an adhered material to the protrusion 4 is released and dropped from the protrusion before it reaches the depth in a space downward of the conveyor 1; therefore, even if it is accumulated, it can be easily removed, removing work cost can be reduced, and moreover removing work can be performed without interfering smooth movement of the conveyor belt 3, thus making it possible to lower carrying efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a conveyor.

[0002]

2. Description of the Related Art Conventionally, conveyors such as belt conveyors have been known as devices used for transporting and transporting various raw materials and materials for industrial use and transporting industrial wastes in construction work and civil engineering work. I have. For example, trash such as driftwood that accumulates at an intake for facilities such as a power plant provided at a dam is scooped up using a dust remover or the like, and then placed on a conveyor and moved directly to a target disposal site by the conveyor. It is used in such a way as to be discarded or to be transported to a vehicle for transporting garbage by a conveyor and transferred.

Some belt conveyors are provided with protrusions on the surface of the conveyor belt so that the conveyed objects such as the above-mentioned raw materials, materials and equipment, and refuse can be reliably transported. The protruding portion has a length equal to the width of the belt, and is formed by arranging linear protrusions having a narrow width in a direction perpendicular to the belt moving direction at predetermined intervals in the belt moving direction. Alternatively, a substantially V-shaped or substantially inverted C-shaped ridge is arranged in parallel at a predetermined interval in the belt moving direction. In particular, when transporting between places with height differences, there is a risk that the transported object may slide down due to its own weight, or the size and shape of the transported object are significantly different and are not constant and are not constant on both sides of the conveyor belt. If there is a possibility that the projection may be caught by a guide for preventing protrusion or dropping, the protrusion is indispensable. A belt conveyor provided with a protruding portion on a conveyor belt is also used for transporting driftwood or the like lifted from a water intake of a dam.

[0004] By the way, when a conveyed object containing a highly adherent substance such as a leaf, a wet tree and bark, a wet fiber product, a wet paper product, and a muddy soil is conveyed by a belt conveyor, the surface of the conveyor belt is conveyed. Highly adherent substances adhere to the surface. As described above, when a belt conveyor provided with a protruding portion on the conveyor belt is used, the adhering matter adhering to the surface of the conveyor belt other than the protruding portion is 180 degrees in a round shape because the moving direction of the conveyor belt is reversed at the end of the conveyor. ° By being bent, it spontaneously peels off from the conveyor belt and falls, and hardly reaches below the conveyor. However, since the projecting portion does not significantly deform in any case, the adhered matter adhered to the surface of the projecting portion does not immediately peel off and drop when the moving direction of the conveyor belt is reversed, and the adhered material of the conveyor remains attached. After reaching the lower space and moving inside the space to some extent, the belt vibrates and the adhesive force loses its own weight and peels off.As a result, the deposited matter accumulates in the space below the belt conveyor. Therefore, there is a problem that the movement of the conveyor belt is hindered.

[0005] In order not to hinder the movement of the conveyor belt, it is necessary to frequently remove accumulated deposits from the space. However, since the space is narrow, the removal operation itself is difficult. Even if the work is possible, it takes a lot of time and labor to increase the work cost, and during the removal work, the movement of the conveyor belt has to be temporarily stopped, which lowers the transport efficiency. Garbage such as driftwood pulled up from the intake of the dam also contains a lot of highly adherent substances such as wet leaves and bark, causing the same problem.

In order to solve the above problem, in a conventional conveyor, a rubber plate is disposed in a space below the conveyor near the end of the conveyor, and the tip of the rubber plate is brought into contact with the protrusion of the conveyor belt from below. To act as a scraping member for the deposits, and to scrape off the deposits attached to the protrusions with a rubber plate, thereby dropping and removing the deposits at a position that does not reach the inside of the space below the conveyor. A contrivance has been made to prevent deposits from accumulating in the space.

[0007]

However, when a rubber plate is used as a scraping member, the rubber plate is not sufficient in recovery from deformation, so that the same scraping effect cannot always be obtained, and a certain protrusion is not provided. In, even if the deposits can be sufficiently scraped, the deformation is not sufficiently recovered when the next protrusion reaches the position of the rubber plate,
In some cases, the contact force between the rubber plate and the protruding portion becomes inappropriate and the scraping cannot be performed sufficiently. The tendency was stronger when the moving speed of the conveyor belt was higher.

Further, since the rubber plate is liable to be deteriorated, permanent distortion is apt to remain, and when used for a long period of time, the rubber plate remains deformed, the contact force with the protruding portion is weakened, and the scraping effect is reduced. Also,
The rubber plate is liable to wear and wear due to friction with the protrusion and the attached matter, and becomes shorter due to wear and wear. As a result, the contact force with the protrusion and the scraping effect are reduced. Therefore, in order to maintain the scraping effect, it is necessary to perform maintenance such as adjusting the mounting height position every predetermined period in order to correct the contact force between the rubber plate and the protruding portion. Was hanging. In addition, when the above maintenance is performed, the movement of the conveyor belt must be stopped each time, and the transport efficiency is significantly reduced.

Further, since the rubber plate is continuous in the lateral direction, when a deformation force is applied to a part, a wide range of deformation occurs not only at the part but also at both sides thereof, and as a result, the deformation is reduced. A portion where the contact force with the protruding portion is weakened occurs, and the effect of scraping off the adhering matter of the protruding portion at the position corresponding to the portion becomes small, so that the adhering material at that position cannot be sufficiently scraped. Was also happening.
That is, when there is a small deposit adjacent to a bulky deposit,
The rubber plate is greatly deformed in contact with the bulky deposit. At this time, since the rubber plate is an integral body continuous in the lateral direction, the rubber plate is entangled on both sides of the contact portion and causes a wide range of deformation. Then, within the deformation range, the bulky deposit and the rubber plate are in strong contact with each other, but the small deposit and the rubber plate adjacent to the bulky deposit are weakly or not at all in contact with the rubber plate. Things happen. That is, since the small deposits fall within the range of deformation of the rubber plate, the small deposits are difficult to be scraped off by the rubber plate.

If a scraping member in which small pieces of a rubber plate are continuously arranged in the horizontal direction is used instead of the rubber piece as a scraping member, the deformed small pieces are not deformed. The adhering matter is trapped in the gap formed between the small pieces and remains deformed, and as a result, the contact force between the small rubber plate piece and the protruding portion becomes inappropriate, so that the effective removal of the adhering matter cannot be performed. In addition, since it is necessary to make the contact force between each rubber plate small piece and the protruding portion uniform, the height positions of the upper ends of the rubber plate small pieces must be aligned, and it takes time and effort to mount the rubber plate small pieces.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and solves the above-mentioned conventional drawbacks. It is possible to remove the deposits attached to the protrusions provided on the conveyor belt without any special maintenance of the conveyor. It is an object of the present invention to provide a conveyor that can be reliably operated over a period.

[0012]

SUMMARY OF THE INVENTION The present invention provides (1) a conveyor wherein a wire brush is disposed below the conveyor belt, and (2) a conveyor belt provided with a protruding portion on the surface of the belt. A conveyor, wherein a wire brush is disposed so that the tip of the wire brush contacts the projection from below, and (3) the tip of the wire brush is closer to the conveyor belt than the surface of the projection of the conveyor belt. The conveyor according to the above (2), which is protruding, (4) the projecting length of the tip end of the wire brush toward the conveyor belt from the surface of the projecting portion of the conveyor belt is 1
The conveyor according to the above (3), which is 0 to 20 mm,
(5) The gist of the present invention is the conveyor according to any one of (2) to (4), wherein a part or all of the surface of the protruding portion of the conveyor belt is made of metal.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 shows a main part of the conveyor of the present invention.
2 is a schematic front view of the conveyor of FIG. 1 as viewed in the direction of arrow a, and FIG. 3 is a vertical cross-sectional view passing through a rotating shaft 8 of FIG. 2. 1 is a conveyor,
2 is a conveyor body, 3 is a conveyor belt, 4 is a protrusion provided on the conveyor belt 3, and 5 is a wire brush.

As shown in FIG. 1, the conveyor 1 has a structure in which a wire brush 5 is provided below a conveyor belt 3 in a conveyor body 2. The wire brush 5 is attached to the conveyor body 2. Then, of the conveyor belt 3, a portion of a range in which the moving direction is reversed at the end of the conveyor main body 2 from the front side of the conveyor that moves to convey the conveyed object and moves on the back side of the conveyor, that is, the back side of the conveyor. At a predetermined position of the portion located at a position, the tip end portion 6 of the wire brush 5 comes into contact with the protrusion 4 provided on the surface of the conveyor belt 3 from below.

That is, as described above, the wire brush 5 is provided below the conveyor belt 3, ie, “downward”.
The term “below” refers to a portion below the conveyor belt 3 in a portion located on the back side of the conveyor, and more specifically, vertically below the conveyor belt 3. That is, when the conveyor 1 is installed obliquely in the longitudinal direction or installed obliquely in the width direction, the wire brush 5 is provided vertically below the conveyor belt 3 in accordance with the inclination of the conveyor belt 3.

As the conveyor main body 2, one having the same structure as a conventionally known belt conveyor can be employed. For example, as shown in FIGS.
The two rotating shafts 8 with the fixed 7 are pivotally supported between the support frames 9, 9 at both longitudinal ends of the supports 9, 9, respectively. Further, at a predetermined interval, a rotation auxiliary shaft (not shown) is pivotally supported between the support frames 9, 9 between the above-mentioned two rotation shafts 8. Also,
Chains 10, 10 that can mesh with the gears 7, 7 are fixed to both ends of the long conveyor belt 3 in the width direction, and the chains 10, 10 are meshed with the gears 7, The conveyor belt 3 is disposed by surrounding the two rotating shafts 8 along a half circumference thereof and binding them in a loop shape. Further, the rotational driving force from the motor 11 is applied to one of the rotating shafts 8 via the speed reducer 12. It is possible to adopt a structure configured to transmit the information. In the drawing, the motor 11 and the speed reducer 12 do not have internal mechanisms.

As the conveyor main body 2, as shown in FIG. 4, a mechanism may be employed in which the center of the conveyor belt is substantially V-shaped on the front side of the conveyor, and becomes flat on the back side of the conveyor.

The support frames 9, 9 serve not only as a support for supporting a rotating shaft 8 which movably supports the conveyor belt 3, but also as a material to be conveyed by being extended upward and high. It can also function as a protective wall for preventing the falling of and the protrusion in the width direction. The shape of the support frame 9 is arbitrary, and varies depending on the size and shape of the transferred object, the width of the conveyor, the installation mode (such as the inclination angle), and the like. When used for transportation, it usually has a single-plate wall shape.

As shown in FIG. 5, the protruding portion 4 provided on the conveyor belt 3 has a length equal to the width of the conveyor belt 3 and has a narrow width in a direction perpendicular to the moving direction of the conveyor belt. Linear ridges may be arranged in parallel at regular intervals at predetermined intervals in the belt movement direction, or substantially V-shaped or substantially inverted C-shaped ridges may be formed at predetermined intervals in the belt movement direction. It can be configured as one that is arranged in parallel at regular intervals. The ridge may have any vertical cross-sectional shape along the longitudinal direction of the belt, but is generally a square, a trapezoid, or a substantially triangle.

In a conveyor used to transport driftwood and the like collected at the intake of a dam and raised, the protruding portion 4 has, as shown in FIG. It is configured in such a manner that the angle members are attached and fixed according to their mutual shapes. The protruding portion 4 is fixed to the conveyor belt 3 at a wooden square portion so that the surface of the metal angle member faces the conveyor belt moving direction. Then, the metal angle member is attached to the conveyor belt in such a manner that the surface of the metal angle member can contact the wire brush 5. If the protrusion 4 is configured in this manner, it is possible to prevent the protrusion 4 from being worn by contact with the wire brush 5. The protruding portion 4 in this case is for surely catching a conveyed object having various sizes and shapes, such as driftwood, and is usually used.
The height is 10 mm or more, preferably 50 to 80 mm.

As shown in FIGS. 2 and 3, the wire brush 5 is fixed to the supporting frames 9, 9 of the conveyor main body 2 so that the tip 6 is directed upward and vertically or substantially vertically. When fixing the wire brush 5 to the support frames 9, 9, the wire brush 5 may be fixed to the support frames 9, 9 via a support member 13 capable of holding and fixing the base. Examples of the wire brush 5 include Japanese Utility Model Publication No. 5-13836 and Japanese Utility Model Publication No. 5-1383.
No. 7, Japanese Utility Model Publication No. 4-52309, Japanese Utility Model Publication 5-1
3838, Japanese Utility Model 5-13839, Japanese Utility Model 6-13914, Japanese Utility Model 6-13911,
JP-A-5-13840, JP-A-5-16318, JP-A-5-16319, JP-A-5-138
No. 34, Japanese Utility Model Publication No. 5-35198, Japanese Utility Model Publication No. 5-35198
Known wire brushes disclosed in JP 13835, JP-B-6-43278, JP-B 6-1671 and the like can be used.

That is, as shown in FIG. 6, for example, it is basically constituted by bundling a large number of metal wires (wires) 50 and has a length equal to the width of the conveyor belt 3. As the wire, a wire such as stainless steel or steel having a high flexural modulus and excellent deformation recovery is preferably used. The diameter of the wire is typically, but not limited to, 0.35 mm. The thickness of the wire brush 5 (right front to left depth in the drawing.
The horizontal direction is shown in FIGS. ) Is optional, but is usually 24-26 mm. Wire brush 5
For example, a large number of the above-mentioned wires are bundled, and the base is held and fixed by sandwiching between two metal plates, or held and fixed by sandwiching between metal plates 14 having a U-shaped cross section as shown in FIG. It is a form.

As shown in FIG. 6, the tip end 6 of the wire brush 5 may be aligned, but as shown in FIG. 7, a step is formed at the tip end 6 along the thickness direction (the left-right direction in the figure). It may be formed. That is, the wire bundle constituting the wire brush 5 is composed of, for example, three blocks 51, 52, 53 constituting a portion having a predetermined thickness, and the tip portions 61, 62, 63 of the respective blocks are sequentially lowered gradually. (Or higher). The number of the blocks and the thickness of each block are arbitrary, and the size of the step between the blocks is also arbitrary.

As shown in FIG. 8, the wire brush 5 has a tip 6 gradually lower (or higher) in the thickness direction of the wire brush 5, that is, the wire brush 5
May be formed obliquely along the thickness direction of the first.

Since the wire brush is hard to be worn and hard to cause permanent deformation, if the contact strength with the projection is slightly adjusted, if the contact strength is slightly increased, the adhered substance on the projection can be obtained. The scraping effect lasts long. Also,
Since a wire brush is a bundle of many fine wires,
Even if one or several thin wires are greatly deformed by contacting a large attached matter, the scraping effect can be supplemented by the denseness of other thin wires. In addition, since it is independent of adjacent fine wires,
Even if the fine wire is deformed significantly at some positions, it does not affect the adjacent fine wire, and even if there is a small deposit adjacent to the large deposit, the small deposit is scraped off There is no. In addition, since the fine wires are dense, even if a part of them is greatly deformed, a large gap is created between the fine wires deformed by the surrounding fine wires and the undeformed fine wires. Since there is no gap, there is no possibility that the effect of scraping off the deposit cannot be obtained by the gap. Also, even if the adhering matter is trapped in the gap, the fine wire is constantly deformed delicately and repeatedly undergoes small deformation. Kimonos also come off easily.

The wire brush 5 is preferably provided at the end of the conveyor. That is, as shown in FIG.
This is the position where the conveyor belt 3 is moved from the front side of the conveyor, which is moved to convey the conveyed object, to the end of the conveyor body 2 at the end thereof and reaches the back side of the conveyor. In the figure, the conveyor belt 3 moves in the direction of arrow b. If the wire brush 5 is provided at such a position, the attached matter attached to the protrusion 4 is separated and dropped from the protrusion before reaching the interior of the space below the conveyor 1, so that even if the wire brush 5 is deposited, Also, the removal operation is easy, the cost of the removal operation can be reduced, and the removal operation can be performed without hindering the smooth movement of the conveyor belt. Therefore, it is possible to prevent the transportation efficiency from being lowered.

It is to be noted that the space may be provided at a middle position of the conveyor, but in this case, a space below the conveyor is formed widely at a position near the wire brush 5 so that deposits that have peeled off and fallen are deposited. It is necessary to provide a device capable of sequentially removing the adhered substances that have peeled and fallen from the place.

In the present invention, it is preferable that the tip end portion 6 of the wire brush projects beyond the surface of the projecting portion 4 of the conveyor belt toward the conveyor belt. With this configuration, the contact force between the wire brush tip 6 and the projection 4 of the conveyor belt can be increased, and therefore, the contact between the wire brush tip 6 and the deposit attached to the projection 4 can be improved. The force can be increased, and the deposit can be reliably scraped off.

The length of the protrusion, that is, the length of the wire brush tip 6 protruding from the surface of the protrusion 4 of the conveyor belt toward the conveyor belt is preferably 10 to 20 mm. If the protruding length is less than 10 mm, there is a possibility that a case where the protruding portion 6 does not contact due to vertical vibration of the conveyor belt may occur. If the protrusion length exceeds 20 mm, the protrusion 6
There is a possibility that the projecting portion 6 may be damaged due to too strong contact force with the wire brush 5, or the projecting portion 6 may be caught on the wire brush 5, thereby causing the movement of the conveyor belt 3 to be reduced, thereby lowering the transport efficiency. Further, there is a possibility that the wire brush 5 itself may be consumed quickly or may be damaged.

[0030]

Since the conveyor of the present invention is constructed as described above, it is possible to reliably remove the deposits attached to the protrusions provided on the conveyor belt for a long period without special maintenance of the conveyor. Can do it.
Thus, according to the present invention, it is possible to reduce the work cost related to transport and significantly improve transport efficiency.

[Brief description of the drawings]

FIG. 1 is an oblique sectional view of a main part showing an example of a conveyor of the present invention.

FIG. 2 is a view of the conveyor of FIG. 1 as viewed in the direction of arrow a.

FIG. 3 is a longitudinal sectional view of the conveyor of FIG. 2 passing through a rotating shaft 8;

FIG. 4 is a view showing another embodiment of the conveyor body according to the present invention.

FIG. 5 is a diagram showing an aspect of a protruding portion.

FIG. 6 is a perspective view showing an example of a wire brush.

FIG. 7 is a side view showing an example of a form of a wire brush.

FIG. 8 is a side view showing another example of the form of the wire brush.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveyor 2 Conveyor main body 3 Conveyor belt 4 Projection part 5 Wire brush 6 Tip part

Claims (5)

[Claims] 1. A conveyor according to claim 1, wherein a wire brush is disposed below the conveyor belt. 2. A conveyor as claimed in claim 1, wherein a wire brush is disposed on the protruding portion of the conveyor belt provided with a protruding portion on the belt surface such that a tip portion of the conveyer belt contacts from below. 3. The conveyor according to claim 2, wherein the tip of the wire brush protrudes toward the conveyor belt from the surface of the protrusion of the conveyor belt. 4. The conveyor according to claim 3, wherein the projecting length of the tip end of the wire brush toward the conveyor belt from the surface of the projecting portion of the conveyor belt is 10 to 20 mm. 5. The conveyor according to claim 2, wherein a part or all of the surface of the projecting portion of the conveyor belt is made of metal.