JP2001122424A - Carrier roller stand for belt conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carrier roller stand for a belt conveyor allowing easy and quick replacement of carrier rollers, even for a belt with wide width and increased number of carrier rollers. SOLUTION: In this carrier stand for belt conveyor provided with a center carrier roller, side carrier rollers inclined and arranged so as to be higher toward the outside on both the sides, supports 6, 7 which freely rotatably support the carrier rollers 14, an upper supporting beam 8 erecting the supports 6, 7 and a lower supporting beam 13 for mounting the upper supporting beam 8, the upper supporting beam 8 is bisected in a belt width direction, each divided upper supporting beams 8a, 8b is rotatably journalled 15a, 15b to the corresponding lower supporting beam 13, and fixing devices 17a, 17b for mounting and fixing the bisected upper supporting beams 8a, 8b on/to the lower supporting beam 13 are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carrier roller stand of a belt conveyor for transporting bulk materials such as ore and coal, and more particularly, to a belt conveyor for a wide belt.

[0002]

2. Description of the Related Art A conventional carrier roller stand is shown in FIG.
As shown in the figure, a chute 2 and a skirt 3 are arranged above both sides of the conveyor belt 1a, and a center carrier roller 4 and a side member for supporting the conveyance load below the belt 1a and maintaining the shape of the belt. Supports 6 and 7 in which carrier rollers 5a and 5b are attached to support beam 8
The conveyor frame 9 for supporting the supporting beam 8 at a predetermined height position is supported by a return roller 10 for holding the transport belt 1b on the return side.

[0003] In the carrier roller stand having the above structure, when the center carrier roller 4 and the side carrier rollers 5a and 5b are worn or damaged and replaced, the belt conveyor is first stopped and the skirt 3 is removed. Then, the belt 1a is pushed up using a jack, a bar, a chain block or the like, and the side carrier roller 5
a or 5b to widen the side carrier roller 5a
Or remove 5b. Next, after similarly increasing the gap between the belt 1a and the center carrier roller 4, the belt 1b
The worker gets into the narrow space between the support beam 8 and
The center carrier roller 4 was replaced.

[0004] However, the above work is
(1) When a gap is formed between the center carrier roller or the side carrier roller and the belt, a load is applied to the equipment, and the equipment may be damaged. (2) The replacement of the center carrier roller is a work in a narrow place, and the posture of the worker is extremely restricted. Therefore, the posture of the worker becomes unstable, particularly when the installation position of the belt conveyor is at a high place. Is accompanied by dangers such as falling, and the degree of danger increases. (3) Since the above operation is performed for a long time, the stop time of the belt conveyor is prolonged, and the operation rate of the conveyor is reduced. There is a problem.

Therefore, Japanese Patent Application Laid-Open No. Hei 9-188412 proposes a device which can easily replace a center carrier roller or a side carrier roller. As shown in FIG. 5, the carrier beam (supporting beam) 8 is
1 and a slide frame 12, the carrier frame 11 has a mountain shape, and the slide frame 12 is divided into two parts (12a, 12b) in the longitudinal direction, and is slid on the carrier frame 11 and fixed at a predetermined position. It is made possible.

[0006]

As shown in FIG. 5, a slide frame 12 is divided into two parts, and the slide frame 12 is pulled out by sliding on a carrier frame 11 in a belt width direction. The center carrier roller 4 and the side carrier rollers 5a and 5b can be easily replaced, but still have the following problems. If there is a building wall, outdoor windbreak board, or rainproof board on the side of the conveyor belt, or if there is equipment nearby, there is no space in the width direction outside the conveyor belt, and the carrier roller 4, The slide frames 12a and 12b including the supports 6 and 7 are pulled out to the outside in the belt width direction, and the carrier rollers 4 and 5 can be replaced.
There may not be that space. At that time, it is necessary to enter the narrow space under the belt for replacement work, the work load is large, and it is dangerous work,
In addition, there was a problem that the conveyor belt had to be stopped for a long time. In particular, in a wide conveyor belt having five carrier rollers, the total length of the carrier stand was 1.5 M or more, and the effect of this problem was great.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to increase a belt width.
An object of the present invention is to provide a carrier roller stand of a belt conveyor that can easily and quickly replace the carrier rollers even if the number of carrier rollers increases.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and the means for solving the problem is that according to the first aspect, the center carrier roller and both sides thereof are provided. Side carrier rollers that are inclined so as to become higher toward the outside, supports that rotatably support these carrier rollers, upper support beams that erected these supports, and lower support beams on which the upper support beams are placed In the carrier stand of the belt conveyor provided with, the upper support beam is divided into two in the belt width direction, each divided upper support beam is rotatably supported on the corresponding lower support beam, and is divided into two. A carrier roller stand for a belt conveyor, comprising a fixing device for mounting and fixing the upper support beam to the lower support beam, and according to claim 2. Is intended for a carrier roller stand of a belt conveyor having five or more carrier rollers, and a third aspect relates to a carrier roller stand of a belt conveyor according to the second aspect, wherein two carrier rollers are provided. A slide frame provided with a support for supporting the other is slidably provided in an upper portion of the lower support beam in the belt width direction, and a middle portion of the upper support beam provided with the support for supporting the remaining three or more members is different. A fixing device rotatably supported by the slide frame and stopping and fixing the rotation of the upper support beam and a fixing device for stopping sliding of the slide frame are provided.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A carrier roller stand of a belt conveyor according to the present invention has a center carrier roller, side carrier rollers which are inclined on both sides thereof so as to be higher toward the outside, and rotatably support these carrier rollers. It comprises a support, an upper support beam on which these supports are erected, and a lower support beam on which the upper support beam is placed. Then, the upper support beam is divided into two in the belt width direction. That is, three or two carrier rollers are supported, and three and two carrier rollers are supported when the number of carrier rollers is five. The divided upper support beams are rotatably supported at corresponding positions with respect to the lower support beams.

During operation of the conveyor belt, the upper support beam is located at a position overlapping with the lower support beam, and is securely fixed by the fixing device, so that the load such as the load on the belt and the vibration due to the rotation of the roller can be reliably reduced. Pay by the supporting beams. On the other hand, when replacing the carrier roller, the fixing device between the upper support beam and the lower support beam is released, and the upper support beam is rotated toward the outside of the conveyor belt with respect to the lower support beam, so that the lower surface of the belt and the carrier roller are removed. Create a gap in the upper surface, lift the carrier roller upward, remove it and replace it with a new carrier roller. It is desirable that the position where the shaft is supported be large at the angle at which the gap between the belt and the carrier roller rotates. In this sense, the end of the upper support beam outside the belt is preferable. The angle of rotation can be 360 ° for the pivot, but it depends on the space outside the conveyor belt and the installation interval of the carrier roller stand.
The carrier roller can be easily replaced if it is rotatable to a range of 20 °. In order to make the replacement work safe during operation, 90 ° or more is desirable.

As described above, it is necessary to fix the upper and lower support beams so that the upper support beam and the lower support beam overlap each other. Since the upper support beam and the lower support beam are connected by a pivot, if the other part is fixed, for example, in order to restrict the rotation of the upper support beam with the lower support beam, the beam end face is stopped with a cotter or a latch. Or, the upper support beams divided into two parts are nonrotatably fixed with a cotter or a latch to fix the upper support beams on the lower support beams.

The above carrier stand makes it easier to replace the carrier roller with a wide conveyor belt having five or more carrier rollers.

In another aspect of the invention, a slide frame provided with a support for supporting two carrier rollers is provided so as to be slidable on the upper portion of the lower support beam in the belt width direction. It is fixed at a position that overlaps the lower support beam, while pulling out the slide frame toward the outside of the conveyor belt when replacing the carrier roller, creating a gap between the lower surface of the belt and the upper surface of the carrier roller,
And since it is pulled out from the conveyor belt,
The carrier roller can be easily replaced.
An upper support beam that supports the other three or more carrier rollers is rotatably supported at an intermediate portion with respect to a slide frame of substantially the same length, and the upper slide frame is supported by the lower support beam. It is slidable in the belt width direction.

During operation of the belt conveyor, the upper support beam is fixed so as not to rotate and overlaps the slide frame,
The slide frame is fixed to the lower support beam so that it cannot slide to the operating position. On the other hand, when replacing the carrier roller, the slide frame is pulled out to the outside of the belt on the lower support beam, and the upper support beam is rotated at an appropriate angle with respect to the slide frame, so that the gap between the upper surface of the belt and the upper surface of the carrier roller is removed. Thus, it is possible to easily remove the carrier roller from the upper side, and to take the replacement operation in a direction outside the conveyor belt.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a belt conveyor according to the present invention in which five carrier rollers are used in a carrier roller stand will be described with reference to FIGS. This belt conveyor has a belt width of 1200 mm and a set of five carrier rollers.
It consisted of two 60 mm long side carrier rollers and one 210 mm long center carrier roller. The belt has a trough angle of 45 degrees, which is commonly used. The overall length of the carrier stand in the belt width direction is 1510 mm,
The interval is usually 1 m in the belt length direction, and is 300 to 400 mm at the belt supply portion.

The carrier roller stand of the belt conveyor shown in FIGS. 1 and 2 is an embodiment corresponding to claims 1 and 2 of the present invention. FIG. 1 is a perspective view of a carrier roller stand, in which a support beam 8 is composed of upper and lower support beams 8a and 8b and a lower support beam 13, and includes one upper support beam 8b that is divided into two. This shows a state in which the stand 8B has rotated 90 °. Carrier roller stand 8A, 8B
The upper supporting beams 8a and 8b of the
4a, 14b, and 14c to 14e,
The support rollers 6a, 7a to 7e, and 6b support the carrier rollers 14a to 14e. Each of the upper support beams 8a and 8b is rotatably mounted on the lower support beam 13. Carrier roller stand 8A,
The rotation of 8B is substantially three times by the bearing sets 15a, 15b at the ends of the upper support beams 8a, 8b and both ends of the lower support beam 13.
It is rotatably supported by 60 °. Bearing set 15
Reference numerals a and 15b denote known bearings which are formed by drilling holes in the lower support beam (channel steel) 13 and the upper support beams (flat steel) 8a and 8b, respectively, and are usually formed of a shaft, a bush, a washer, and a nut.

During operation of the belt conveyor, the upper support beam 8
a clasp 1 erected from the lower support beam 13 so that the a and 8b do not rotate in the conveyor belt running direction.
The other means is to insert the cotter 17a firmly into the two cotter clasps 17b so that the upper support beams 8a and 8b cannot rotate with respect to the lower support beam 13 by taking the means in contact with 6a and 16b. The upper support beams 8a and 8b are fixed so as to overlap with the lower support beam 13 in a straight line.
In this example, two cotter fasteners 17b are welded to the side surface of the upper support beam 8a, and the cotter 17a is inserted into the cotter 17a so that the upper support beam 8b cannot be rotated on the surface opposite to the tapered surface. In another example, the cotter clasp 17b is connected to the upper support beam 8a,
8b are attached one by one, and inserted and fixed with a cotter 17a, so that the function can be exhibited.

When replacing the carrier rollers 14a to 14e, the upper support beam 8a,
8b, the cotters 17a fixing the members are unlocked to be rotatable, and the respective cotter clasps 17b and the handles 18 are easily replaced by the hook bars (not shown) so that the carrier rollers 14a to 14e can be easily replaced in the opposite direction of the belt operation. The carrier roller 14a is rotated and fixed at the position, and the carrier rollers 14a to 14e are replaced. The solid line of the carrier stand 8B with three carrier rollers in FIG. 1 shows the state.

FIG. 3 shows an embodiment corresponding to claim 3 of the present invention. The specifications of the conveyor belt are as described above. Support 6 for two side carrier rollers 14a and 14b on top
a, slide frame 19a on which 7a, 7b stands
Has a notch below the B-shaped section so that it can slide in the belt width direction while holding the upper flange surface of the I-shaped lower support beam 20. A handle 21 is provided for sliding the slide frame 19a, and a bolt or pin structure penetrating the slide frame 19a and the lower support beam 20 is used as a sliding fixing device.

One of the rotating carrier stands is a center carrier roller 14c and a side carrier roller 1c.
A flat upper support beam 22 on which the supports 7c to 7e and 6b of 4d and 14e are erected, and a support 23 on the upper surface of the slide frame 19b for the rotation thereof, and the slide frame 19b It has the same cross-sectional structure as the slide frame 19a so as to be slidable with respect to the support beam 20 in the belt width direction.

When replacing the carrier rollers 14a and 14b on the slide frame 19a, the slide fixing bolt 24 is released and the slide frame 19a is
As a result, the carrier rollers 14a and 14b are slid to the outside in the belt width direction so as to take a sufficient distance from the lower surface of the belt and pulled out. Next, the intended carrier roller 14a, 1
Replace 4b. In this case, if the length of the slide frame 19a is about half of the total length, the replacement operation can be performed safely and reliably.

When replacing the carrier rollers 14c to 14e from one of the rotating carrier stands, first, the retaining bolt 25 at the end of the upper support beam 22 is released, and then the handle 26 at the back is pulled by a scraper (not shown). ), The slide frame 19b is pulled out to the outer side in the belt width direction by using the handle 26 at the front side until the upper support beam 22 is rotated substantially 90 ° in the same direction as the belt direction.
At this time, the carrier rollers 14c to 14e are sufficiently spaced from the lower surface of the belt and are separated from the belt, so that the carrier rollers 14c to 14e can be safely and reliably replaced.

[0023]

According to the carrier stand of the first aspect of the present invention, even if there is not enough room on the side of the conveyor belt,
By rotating the upper support beam divided into two parts, the work of replacing the carrier roller can be securely and securely performed even during operation at rest. In particular, the present invention is suitable for a wide belt conveyor having a set of five or more carrier rollers. According to the carrier stand of the third aspect of the present invention, it is most suitable for a case where there is not enough room on the side surface of the conveyor belt, a place where the carrier stand interval is narrow, particularly a work of replacing a carrier roller at a connecting portion such as a place for receiving a belt conveyor. is there. According to the present invention, it is not necessary to stop for replacing the carrier roller of the belt conveyor equipment, and the equipment operation rate can be increased. Also, the conveyor belt equipment is not damaged during the replacement operation.

[Brief description of the drawings]

FIG. 1 is a perspective view of a carrier roller stand of a belt conveyor according to the present invention.

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

FIG. 3 is a perspective view of a carrier roller stand of a belt conveyor according to another embodiment of the present invention.

FIG. 4 is an explanatory view of a carrier roller stand of a conventional belt conveyor.

FIG. 5 is an explanatory view of a carrier roller stand of another conventional belt conveyor.

[Explanation of symbols]

6a, 7a to 7e, 6b: Support 8: Support beam 8a, 8b: Upper support beam 8A, 8B: Carrier roller stand 13: Lower support beam 14a to 14
e: Carrier roller 15a, 15b: Bearing set 16a, 16
b: clasp 17a: cotter 17b: cotter clasp 18: handle 19a, 19
b: Slide frame 20: Lower support beam 21: Handle 22: Upper support beam 23: Shaft support 24: Sliding fixing bolt 25: Retaining bolt 26: Handle 27: Clasp

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tsukasa Sueyoshi 2 Nadahama Higashi-cho, Nada-ku, Kobe City, Hyogo Prefecture Inside the Kobe Steel Works Kobe Works (72) Inventor Yoshinobu Kubo 2, Nadahama-Higashi-cho, Nada-ku, Kobe City, Hyogo Prefecture Kobe Steel, Ltd.Kobe Works (72) Inventor Shunichi Sakamoto 2 Nadahama-Higashi-cho, Nada-ku, Kobe, Hyogo Prefecture Kobe Steel, Ltd. 5-1-1 Yamate-dori JRRC Kobe Sales Office, Inc. (72) Inventor Yoshiaki Ezoe 5-1-1 Shimoyamatedori, Chuo-ku, Kobe-shi, Hyogo JR Sea Kobe Sales Office F-term (reference ) 3F023 AA02 AB01 AB02 BA03 BB01 GA04 3F033 GA03 GB01 GB02 KA01 LA02

Claims (3)

[Claims] 1. A center carrier roller, side carrier rollers that are inclined on both sides of the center carrier roller so as to become higher outward, supports that rotatably support these carrier rollers, and these supports are erected. In a carrier stand of a belt conveyor provided with an upper support beam and a lower support beam on which the upper support beam is placed, the upper support beam is divided into two in the belt width direction, and each of the divided upper support beams corresponds to the upper support beam. Pivotally supported on the lower support beam,
A carrier roller stand for a belt conveyor, further comprising a fixing device for mounting and fixing the upper support beam divided into two parts on the lower support beam. 2. The carrier roller stand of a belt conveyor according to claim 1, wherein the number of the carrier rollers is five or more. 3. A slide frame on which a support for supporting two carrier rollers is erected is slidably provided in an upper portion of the lower support beam in a belt width direction, and a support for supporting the remaining three or more is erected. The intermediate portion of the upper support beam is rotatably supported by another slide frame, and a fixing device for stopping and fixing the rotation of the upper support beam and a fixing device for stopping the slide of the slide frame are provided. Claim 2
The carrier roller stand of the described belt conveyor.