JP2003285913A - Corner device for pipe conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a corner device for a pipe conveyor allowing the effective use of a floor surface on the center side of the radius of curvature of an elbow pipe. <P>SOLUTION: The pipe conveyor comprises an endless chain 5 arranged in a pipe line with its bent portion formed by the elbow pipe 7, the endless chain 5 having a number of blades 4 mounted at given spaces, the blades 4 being used for transferring transferred objects m. The elbow pipe 12 has an opening portion 11 on the center side of the radius of curvature, the opening portion 11 being encircled. A holding portion 13 having the opening portion is provided in the direction of intersecting a plane X including a center axis O of the elbow pipe, and a corner block 20 for closing the opening portion 11 and a thrust block 21 for thrusting the corner block 20 against the opening portion 11 are arranged in the holding portion 13. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corner device for a pipe conveyor.

[0002]

2. Description of the Related Art Conventionally, a pipe conveyor has been known as one of transfer devices for transferring solid substances such as earth and sand and garbage, and other granular substances. As shown in FIG. 4, the pipe conveyor has an endless chain 5 in which a large number of blades 4 are attached at regular intervals in a pipeline 3, and an object to be transferred m such as a solid substance is arranged between the blades 4. The endless chain 5 is made to run in a predetermined direction by a drive device (not shown).

By the way, in such a pipe conveyor, when the endless chain 5 in the pipeline 3 moves, it abuts against the inner surface of the pipeline 3 and wears and damages it. The wear and damage on the inner surface of the pipeline is particularly severe on the inner peripheral surface of the L-shaped elbow pipe arranged at the bent portion of the pipeline 3.

Therefore, although measures have been taken such as making the inner peripheral portion of the elbow pipe thicker or arranging a special wear resistant material, when the abrasion damage occurs, it is necessary to replace the elbow pipe. is there. Therefore, there is a problem that maintenance of the pipe conveyor is expensive and time consuming each time.

Therefore, it may be possible to replace the inner wall surface of the elbow pipe which is severely worn and damaged. As one of the means, for example, a means as shown in FIG. 5 is known (see Japanese Patent No. 3132763). That is, the corner reinforcing member 6 of FIG. 5 is formed in a small size corresponding to the short corner of the elbow pipe 7 and the small curvature, and is fixed to the connecting plate 8 for fixing.
The bolts 9 are used to fix the parts.

[0006]

However, when replacing the corner reinforcing member 6, it is necessary to move the corner reinforcing member 6 in the direction of the center of the radius of curvature of the elbow pipe 7, that is, in the direction of arrow C. However, in a plant provided with such a pipe conveyor, there are many cases where various machines and instruments are arranged on the center side of the radius of curvature of the elbow pipe. Therefore, there is a problem that not only it is necessary to separately select the installation location of the machinery and equipment, but also the entire plant becomes large.

[0007]

The present invention has been made to solve the above conventional problems.

In a corner device for a pipe conveyor according to a first aspect of the present invention, an endless chain having a large number of blades attached at predetermined intervals is arranged in a pipeline having a bent portion formed of an elbow pipe, and each of the blades is arranged. Is a pipe conveyor configured to transfer an object to be transferred, and an opening is provided on the center side of the radius of curvature of the elbow pipe, the opening is surrounded, and a plane including the central axis of the elbow pipe is crossed. Is provided with a holding portion having an opening portion in the direction, and a corner block that closes the opening portion and a holding block that presses the corner block toward the opening portion are arranged in the holding portion. is there.

Further, in the corner device of the pipe conveyor according to a second aspect of the present invention, the closing surface of the corner block that closes the opening of the elbow pipe has a curved surface substantially similar to the inner wall surface of the elbow pipe. Is formed as
It is configured to project into the tube from the opening.

According to a third aspect of the present invention, in the pipe conveyor corner device, the rear surface of the corner block that closes the opening of the elbow pipe has an inclined surface that becomes thinner toward the opening of the holding portion. With the configuration,
The pressing block has a wedge shape, and the pressing block is press-fitted into the rear surface of the corner block from the opening to press the corner block against the opening of the elbow pipe to close the opening. .

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 is a sectional view including a partial plane of an elbow including a corner device of the present invention, and FIG. 2 is a sectional view taken along line B- of FIG.
It is a B sectional view.

As shown in FIG. 1, the elbow pipe 12 has an opening 11 on the center side of its radius of curvature. Further, a holding portion 13 is attached to the elbow pipe 12 so as to surround the opening 11. As shown in FIG. 2, the holding portion 13 includes a lower support member 14 attached to the lower portion of the elbow pipe 12, an upper support member 15 attached to the upper portion, a vertical support member 16, and a support plate 17, A section D is formed inside the section.

An opening E is provided in the upper part of the section D (in the direction orthogonal to the plane X including the central axis O of the elbow pipe 12 (direction of arrow G), and the support plate 17 for closing the opening E is provided.
Are detachably attached to the upper portions of the upper support member 15 and the vertical support member 16 by bolts 18 and 19.

Reference numeral 20 is a corner block arranged in the section D of the holding portion 13, and is an opening 11 of the elbow pipe 12.
Has a side surface (hereinafter referred to as a closing surface) 20a for closing the
The closed surface 20a is formed as a curved surface having substantially the same curvature as the inner peripheral portion of the elbow pipe 12, and the rear surface thereof is provided with an inclined surface 20b that becomes thinner toward the upper side. The closing surface 20a of the corner block 20 is attached so as to slightly project from the inner surface of the elbow pipe 12. The opening 11 is
The cut surface is finished and has a metal touch.

On the other hand, a holding block 21 is attached to the rear surface of the corner block 20 inside the section D of the holding portion 13. The holding block 21 has a wedge shape, and the pushing bolt 2
2 is pressed between the vertical support member 16 and the corner block 20, thereby pressing the closing surface 20a of the corner block 20 against the opening 11 of the elbow pipe 12,
The opening 11 is closed. 23 is
A pull-out bolt used when the pressing block 21 is pulled out, 24 is a side wall support member that forms the section D, and the side wall support member 24 constitutes the holding portion 13.

The closing surface 20 of the corner block 20 described above.
When a is worn, the push-in bolt 22 is loosened, the bolts 18 and 19 are removed, and then the pull-out bolt 23 is rotated to pull out the pressing block 21. After that, the support plate 17 and the pressing block 21 are integrally moved upward, and then the corner block 20 is removed from the section D of the holding portion 13. Then, after the other separately prepared corner block 20 is placed in the section D of the holding portion 13, the operation opposite to the above is performed and the closing surface 20a of the corner block 20 causes the elbow pipe 12 to move.
The opening 11 is closed.

[0017]

As described above, according to the present invention, an opening is provided in the inner peripheral portion of the elbow pipe, the opening is closed by a corner block, and the corner block includes the central axis of the elbow pipe. Since it can be replaced by moving it in the direction orthogonal to the plane, it is possible to place equipment and instruments on the center side of the radius of curvature of the elbow pipe, and as a result, prevent the plant using a pipe conveyor from increasing in size. be able to.

Further, the corner block can be easily attached or detached, and when the closing surface of the corner block is worn and damaged, it can be quickly replaced.

[Brief description of drawings]

FIG. 1 is a sectional view including a partial plane of an elbow including a corner device of the present invention.

FIG. 2 is a sectional view taken along line BB in FIG.

FIG. 3 is a side view of a corner block.

FIG. 4 is a perspective view of a conventional pipe conveyor.

FIG. 5 is a sectional view of a conventional elbow tube.

[Explanation of symbols]

11 openings 12 Elbow tube 13 Holder 20 corner blocks 21 Holding block X A plane including the central axis O of the elbow tube

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Takao Wakeshima             Mitsui Shipbuilding, 3-1-1 Tamama, Tamano City, Okayama Prefecture             Tamano Works Co., Ltd. (72) Inventor Junichi Sueishi             Mitsui Shipbuilding, 3-1-1 Tamama, Tamano City, Okayama Prefecture             Tamano Works Co., Ltd. F term (reference) 3F013 BA01 BB02 BB13 BC02 BC05                       BC11 BC13 BD03                 3F025 CA35 CB05

Claims (3)

[Claims] 1. A pipe conveyor in which an endless chain having a large number of blades attached at a predetermined interval is arranged in a pipeline having a bent portion formed of an elbow pipe, and each blade transfers an object to be transferred. An opening is provided on the center side of the radius of curvature of the elbow pipe, a holding portion is provided surrounding the opening and having an opening in a direction intersecting a plane including the central axis of the elbow pipe. A corner device for a pipe conveyor, wherein a corner block that closes the opening and a pressing block that presses the corner block toward the opening are arranged inside the part. 2. The closing surface of the corner block for closing the opening of the elbow pipe is formed as a curved surface having a curvature substantially similar to the inner wall surface of the elbow pipe, and protrudes into the pipe from the opening. A corner device for pipe contour according to claim 1, which is constructed. 3. The rear surface of the corner block for closing the opening of the elbow pipe is configured to have an inclined surface that becomes thin toward the opening of the holding portion, and the pressing block has a wedge shape. The pipe conveyor according to claim 1 or 2, wherein the opening is closed by press-fitting the opening from the rear surface of the corner block to press the corner block against the opening of the elbow pipe. Corner device.