JP3132763B2 - Corner reinforcement structure of pipe conveyor - Google Patents

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 structure in which a corner reinforcing member is exchangeably mounted on a pipeline of a pipe conveyor to reinforce the pipeline.

[0002]

2. Description of the Related Art Short link chains, roller chains,
In a pipe conveyor that incorporates a conveying means in which blades or buckets are connected to a wire rope or the like at equal intervals, the conveying means is driven to circulate and various solid substances (for example, wood or metal chips, earth and sand, mineral raw materials, Metallic substances, paper products, plastics, fish and shellfish, snow, garbage, etc.)
And other granular materials. FIG. 9 shows an example of a conventional link chain type pipe conveyor. A pipe formed in a meandering shape by a combination of a straight pipe 1 and an elbow pipe 2 bent substantially in an L or U shape. Lines are provided. The pipeline is provided with an inlet 3 for an object to be transported at an appropriate position, and a disposal port 4 for discarding or transporting the object to be transported is provided at a predetermined location.
An endless chain 5 is built in the link chain type pipe conveyor, and is provided near the disposal port 4 and driven by a motor (not shown).
And circulates through the pipeline so as to connect the shortest distance in the pipeline (FIG. 1).
0, see FIG. 11). Here, in the above-mentioned link chain type pipe conveyor, the direction in which the endless chain 5 is folded back by the driving wheels 9 is not particularly limited, but is a vertical direction (illustrated example).
However, it may be in the horizontal direction. Further, the pipeline may be laid out one-way without any turn. The endless chain 5 is formed by connecting a large number of egg-shaped links 6 at right angles to each other. Blades 7 having a circular outer periphery are fixed at appropriate intervals, and the conveyed objects are conveyed by the blades 7. It has become. Accordingly, the endless chain 5 circulates constantly in contact with the inner peripheral surface of the inner corner of each corner of the pipeline, and the blade 7 abuts against the inner peripheral surface and rotates while twisting the endless chain 5, When the blade crosses the corner of the line, the blade 7 turns and returns in the opposite direction due to the repulsive force of the twist of the endless chain, circulates and discharges the conveyed object while repeating this. Therefore, in such a link chain type pipe conveyor, the inner peripheral surface of the corner portion of the elbow pipe 2 is strongly rubbed by the circulation of the endless chain 5 and the rotation by the twist or return by the rotation of the blade 7, and is easily worn. There was a problem. Therefore, conventionally, FIG.
As shown in FIG. 13, the surface of the elbow pipe 2 arranged at the corner of this pipeline is heat-treated to improve the wear resistance, or as shown in FIG. The service life is extended by welding the reinforcing plate 10 to the corner to increase the wall thickness. However, the heat treatment does not extend the service life much compared to the time and cost required for repair or replacement. Also, reinforcing plate 1
In the configuration where 0 is welded to the inner corner of the elbow pipe 2, the life is extended by the increased thickness, but high carbon and high hardness steel is used as the material. Parts must be removed and stiffeners must be replaced, but these operations on the installed pipeline are very difficult and time consuming. Such a problem is not limited to the link chain type pipe conveyor having the above-described configuration, but also includes a pipe conveyor having a corner portion in a pipeline, and when a chain, a wire, or another transmission member moves in a pipeline of the pipe. This is a common drawback in the case of a structure in which corners are strongly rubbed, and a solution is awaited in this type of technical field.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a main problem thereof is that repair of abrasion and damage to a corner of a pipeline of a pipe conveyor can be easily performed even after the pipeline is installed. To do
An object of the present invention is to provide a pipe conveyor corner reinforcing structure in which a corner reinforcing member is replaceable.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an opening at a corner of a pipeline of a pipe conveyor equipped with a conveying means, and a corner reinforcing member is detachably attached to the opening. We took the measure. That is, according to the first aspect of the present invention, there is provided a pipe conveyor provided with conveying means circulated and driven in a pipeline having a corner portion, wherein (a) an opening is provided at a corner portion of the pipeline of the pipe conveyor, (b) A bottom surface closes the opening, and the bottom surface is continuously curved with the inner peripheral surface in the extending direction of the pipeline,
It is set to a curved shape that is substantially the same as the circumferential curved surface of the pipe connected to the opening, and a corner reinforcing member provided with a connecting portion is provided on an upper portion thereof, (c) provided in the pipeline. At the position where the mounting portion protrudes outward and the bottom surface of the corner reinforcing member is continuous with the inner peripheral surface in the extending direction of the pipeline, the corner reinforcing member is detachably fixed to the mounting portion via the connecting portion. Technical means of providing a mounting portion provided in the pipeline.

According to a second aspect of the present invention, in the configuration of the first aspect, (d) the opening is formed at an inner corner of the corner, and at least a part of the corner reinforcing member is formed of the pipe. Technical measures are taken to make the wall thickness larger than the wall thickness of the line pipe. In the invention according to claim 3, in addition to the above configuration, (e). A mounting case in which the mounting portion has a cylindrical shape projecting outward so as to surround the opening, and to which the corner reinforcing member can be fitted. And a technical means of detachably fixing the corner reinforcing member to the mounting case portion.

According to a fourth aspect of the present invention, in the configuration of the second aspect, (f) the mounting portion is formed in a tubular shape projecting outward so as to surround the opening, and A mounting case portion capable of fitting the reinforcing member without a gap, and a connecting plate that covers an opening of the mounting case portion and is detachably connected to the mounting case portion, (g). Technical means of fixing to the connection plate and fitting and mounting to the mounting case portion are taken. According to a fifth aspect of the present invention, in the configuration of the second aspect, the mounting portion is formed in a cylindrical shape projecting outward so as to surround the opening, so that the corner reinforcing member can be fitted without a gap. The corner reinforcing member has a main body portion that can be fitted to the mounting portion, and a connecting piece that protrudes outward at an upper portion of the main body portion, and the corner reinforcing member is attached to the mounting portion. A technical measure is taken such that, when fitted to the connector, the connecting piece is overlapped on the upper part of the mounting portion and detachably fixed. Further, in the invention of claim 6, a technical measure is taken that a hardened wear-resistant steel such as a wear-resistant synthetic resin or high-carbon steel or a synthetic steel is used as the corner reinforcing member.

[0007]

[Function] Since the corner reinforcing member is detachably fixed to the mounting portion projecting outward through the connecting portion, it is easy to replace even after installing the pipeline, and the bottom surface of the corner reinforcing member is fixed to the pipe when fixed. It is continuous with the inner circumferential surface in the extending direction of the line and has a curved shape substantially the same as the circumferential curved surface of the pipe connected to the opening, so that there is no trouble in conveyance. When a block-shaped corner reinforcing member is used, the corner reinforcing member can be mounted without a gap by making the mounting portion cylindrical. If the mounting portion is a combination of a cylindrical mounting case portion and a connecting plate, the corner reinforcing member is fixed to the connecting plate, and the connecting plate is fixed to the mounting case portion, so that the corner reinforcing member can be easily formed. It can be positioned and attached to a predetermined position. In addition, even if the connecting piece is formed integrally with the corner reinforcing member instead of the connecting plate, it can be similarly attached.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a pipe conveyor corner reinforcing structure according to the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the corner reinforcement structure of the pipe conveyor includes an opening 12 penetrating through a corner of the pipe conveyor, in this embodiment, an inner corner of an elbow pipe 11, and an opening 12. The mounting case 13 includes a mounting case 13 connected to the mounting case 13, a connecting plate 17 detachably fixed to the mounting case 13, and a block-shaped corner reinforcing member 14 fitted to the mounting case 13.

The mounting case 13 is provided along the periphery of the opening 12 and has a rectangular cylindrical shape with both ends open. The mounting case 13 is welded to the corner 11 made of an elbow pipe having the opening 12 formed therein. Or it is fixed by other means. The mounting case 13 has a flange 19 extending along the edge of the outer opening.
In the illustrated example, two screw holes 19A for connecting the connection plate 17 are formed at four locations on each of the left and right sides.

In the illustrated example, the mounting case 13
A flange 19 is directly fixed to the front and rear sides of the opening 12 which is front and rear in the direction in which the pipeline extends, without forming a peripheral wall. On the other hand, arc-shaped peripheral walls are erected at the right and left edges of the opening 12 extending along the direction in which the pipeline extends, and flanges 19 serving as left and right sides are fixed to the upper part thereof, and the flanges serving as the front and rear sides are fixed. A flange that forms a rectangular frame is integrally connected. As shown in FIG. 2, the shape of the inner peripheral surface of the mounting case portion 13 thus formed is set so that the corner reinforcing member 14 can be fitted without a gap.

Next, as shown in FIG. 2 or FIG. 4, the connecting plate 17 is formed in a plate shape which closes the outer opening of the mounting case portion 13 and is aligned with the flange 19 so as to be vertically overlapped. Screw holes 17A corresponding to positions communicating with the screw holes 19A at the time of alignment are formed at four positions, and screw holes 17B for connecting the corner reinforcing member 14 are formed at two positions at the center. .

Next, as shown in FIG. 3, the corner reinforcing member 14 is formed in an arc-shaped cross section so that the lower surface 15 is aligned with the inner peripheral surface of the pipeline. Correspondingly, it is set to be formed in a curved shape with the same curvature. At the same time, as shown in FIG. 2, the lower surface 15 of the corner reinforcing member 14 is set to have substantially the same curved shape as the circumferential curved surface of the pipe connected to the opening 12. In addition, the upper surface is set to be a flat surface so as to be connectable to the connection plate 17, and two mounting screw holes 16 are provided in the connection plate 17. It is provided in. The corner reinforcing member 14 is preferably made of a wear-resistant material such as high carbon steel.

Therefore, when mounting, the connecting plate 17 is overlaid on the corner reinforcing member 14 and the screw holes 17 are formed.
B is aligned with the screw hole 16 and is screwed through the bolt 18 to fix them together. Next, when the corner reinforcing member 14 integrated with the connecting plate 17 is fitted into the hollow through the outer opening of the mounting case portion 13, the connecting plate 17 is fitted to a position where it abuts on the flange 19.

Thus, the lower surface 15 of the corner reinforcing member 14 is positioned so as to be continuous with the inner peripheral surface of the pipeline. In this embodiment, the connection plate 17
A rubber packing for preventing liquid leakage is interposed between the flange and the flange 19 to maintain watertightness. And
The screw holes 17A of the connection plate 17 are aligned with the screw holes 19A of the flange 19, and the bolts 20 are inserted and tightened. As a result, the corner reinforcing member 14 is detachably fixed to the mounting case portion 13 via the connecting plate 17, so that the corner reinforcing member 14 becomes a part of the elbow pipe 11, and the inner peripheral surface in the pipe is also bent in series. .

Next, when the corner reinforcing member 14 is worn and needs to be replaced, the bolt 20 is removed, the connecting plate 17 is removed from the mounting case 13 together with the corner reinforcing member 14, and the bolt 18 is removed. The corner reinforcing member 14 can be removed from the connecting plate 17 and replaced with a new corner reinforcing member 14.

The corner reinforcing member 14 can be appropriately deformed according to the different curvature of the corner of the corner portion 11. The corner reinforcing member 14 shown in FIG. 5 is a case where the corner of the corner portion 11 is gradual, and is formed to be large in correspondence with the long corner and the large curvature. It is fixed using bolts 18 at the points. The corner reinforcing member 14 shown in FIG. 6 is a case where the corners of the corner portion 11 are connected to pipes that are substantially orthogonal to each other. The corner reinforcing member 14 is formed in a small size corresponding to a short corner and a small curvature. In order to fix to 17, it is fixed using bolts 18 at two places. The other configuration of the corner reinforcing member 14 is the same as that of the above-described embodiment, and the description is omitted.

FIG. 7 shows another embodiment of the corner reinforcing member according to the present invention. The corner reinforcing member 24 has integrally formed connecting pieces 27 protruding outward on both left and right sides of the upper surface of the main body 24A. ing. The connecting piece 27 is provided with a screw hole 27A. On the other hand, the mounting case used in this embodiment has the same configuration as that of the above-described embodiment, and is not shown. The corner reinforcing member 24 can be detachably fixed to the mounting case by screwing the screw hole 27A of the connecting piece 27 and the screw hole formed in the flange of the mounting case (not shown). Therefore, according to the corner reinforcing member 24 of this embodiment, it is not necessary to separately provide the connecting plate 17 in the above embodiment.

Further, in the present invention, the corner reinforcing member does not have to be set thicker than the thickness of the pipeline, and may be any as long as it can be exchangeably fixed to the mounting portion. It is preferable that the mounting portion is cylindrical if it is possible to enhance the sealing performance, but it is also possible to use a mounting plate which is erected from the elbow pipe and can be detachably fixed to the connecting portion of the corner reinforcing member.

For example, in another embodiment shown in FIG. 8, the mounting portion has a structure in which a pair of mounting plates 33, 33 are erected on both right and left sides of the opening 12 of the pipeline. A bolt insertion hole 33A is formed in an outwardly extending flange portion having an inverted L-shaped cross section. On the other hand, the corner reinforcing member 34 is provided with a pair of brackets 37, 37 serving as connecting portions on the left and right sides of the upper portion, and each bracket 37 is formed in an inverted L-shaped cross section so as to overlap the mounting plate 33. Similarly, a hole 37A communicating with the hole 33A is provided in a flange portion extending outward.

Therefore, the bracket 37 of the corner reinforcing member 34 is placed on the mounting plate 33 from above, and
The corner reinforcing member 34 can be fixed to the mounting plate 33 by aligning 3A and 37A and tightening with the screw 40. Further, the corner reinforcing member and the mounting plate may be detachably connected to each other by a through bolt penetrating in the left-right direction, and the detachable fixing means in the present invention is not limited to the above embodiment. Further, in the above-described embodiment, the case where the elbow pipe is used as the corner portion of the pipeline is exemplified. However, the corner portion reinforcing structure may be any portion where the corner is formed by the pipeline, and is not limited to the embodiment. is there.

[0021]

According to the present invention, an opening is provided at a corner of a pipeline of a pipe conveyor, and a corner reinforcing member is detachably attached to the opening.
Even after the installation of the pipeline, the replacement of the corner reinforcing member can be performed easily and easily, which is extremely useful. Further, since the corner reinforcing member is separate from the pipeline, it is possible to use a wear-resistant material such as a wear-resistant synthetic resin, high-carbon steel, high-hardness wear-resistant steel or alloy steel.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a use state of an embodiment of a corner reinforcement structure of a pipe conveyor according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a perspective view of a corner reinforcing member of FIG. 1;

FIG. 4 is a plan view showing a connecting plate part of FIG. 1;

FIG. 5 is a sectional view showing a corner reinforcing member in a case where a corner is gentle.

FIG. 6 is a cross-sectional view showing a corner reinforcing member when the corners are substantially orthogonal.

FIG. 7 is a perspective view showing another embodiment of the corner reinforcing member.

FIG. 8 is a perspective view showing still another embodiment of the corner reinforcing member.

FIG. 9 is a perspective view showing an example of a conventional link chain type pipe conveyor.

FIG. 10 is a cross-sectional view showing an internal state of a corner portion of a conventional pipeline.

FIG. 11 is a partially cutaway perspective view showing the inside of a conventional pipeline.

FIG. 12 is a cross-sectional view illustrating a state of a conventional elbow tube.

FIG. 13 is a cross-sectional view illustrating another example of a conventional elbow tube.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Straight pipe 2 Elbow pipe 3 Supply port 4 Discard part 5 Endless chain 7 Disk 8 Conveyed object 9 Drive wheel 10 Reinforcement plate 11 Corner part 12 Opening part 13 Mounting case part 14 Corner reinforcing member 15 of the first embodiment 15 Concave surface 17 Connection Plate 24 Corner reinforcing member of second embodiment 27 Connecting piece 33 Mounting plate 34 Corner reinforcing member of third embodiment 37 Bracket

Continuation of the front page (56) References Jiko 57-57048 (JP, Y2) JP-B 41-16652 (JP, B1)

Claims (6)

(57) [Claims] 1. A pipe conveyor in which a conveying means circulated and driven inside a pipeline having a corner portion is provided, wherein: (a) an opening formed in a corner portion of the pipeline of the pipe conveyor; The opening is closed, and the bottom surface is continuously curved with the inner circumferential surface in the extending direction of the pipeline, and is set to have substantially the same curved shape as the circumferential curved surface of the pipe connected to the opening. (C) a mounting portion provided on the pipeline projects outward, and a bottom surface of the corner reinforcement member extends in a direction in which the pipeline extends. A mounting portion provided in the pipeline, wherein the corner reinforcing member is detachably fixed to the mounting portion via the connecting portion at a position continuous with the inner peripheral surface. Corner reinforcement structure of the pipe conveyor. 2. The method according to claim 1, wherein the opening is formed at an inner corner of the corner, and at least a part of the corner reinforcing member is formed to have a thickness larger than a thickness of a pipe of the pipeline. The corner reinforcement structure for a pipe conveyor according to claim 1, wherein: 3. The mounting portion has a cylindrical shape projecting outward so as to surround the opening, and includes a mounting case portion to which the corner reinforcing member can be fitted. The corner reinforcement structure for a pipe conveyor according to claim 2, wherein the corner reinforcement member is detachably fixed. 4. A mounting case portion, wherein said mounting portion has a cylindrical shape projecting outward so as to surround said opening portion, said mounting case portion capable of fitting said corner reinforcing member without a gap, and said mounting case portion. And a connecting plate that is removably connected to the mounting case portion by closing the opening of the corner case. The corner reinforcing member is fixed to the connecting plate,
3. The corner reinforcement structure for a pipe conveyor according to claim 2, wherein the corner portion is fitted and fitted to the mounting case portion. 5. The mounting portion is formed in a cylindrical shape projecting outward so as to surround the opening, and is formed so as to be able to fit the corner reinforcing member without a gap. The reinforcing member has a main body portion that can be fitted to the mounting portion, and a connecting piece that protrudes outward at an upper portion of the main body portion. When the corner reinforcing member is fitted to the mounting portion, 3. The corner reinforcing structure for a pipe conveyor according to claim 2, wherein a connecting piece is overlapped on the upper portion of the mounting portion and fixed detachably. 6. The pipe according to claim 1, wherein the corner reinforcing member is made of a wear-resistant synthetic resin, a high-hardness wear-resistant steel such as a high-carbon steel, or a synthetic steel. Corner reinforcement structure of conveyor.