JPH09188412A - Carrier roller stand for belt conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform easy and rapid replacement of a carrier roller during operation, prevent a fall of the carrier roller in the movement direction of a belt during replacement thereof, and prevent a drop from a carrier beam due to inclination during drawing thereof. SOLUTION: In a carrier roller stand formed in such a manner that a center carrier roller 4 and side carrier rollers 5a and 5b arranged in an inclination state on both sides of the center carrier roller are rotatably supported by supports 6 and 7 erected at a carrier beam 8, the carrier beam 8 comprises a carrier frame 21 and a slide frame 22. The carrier frame 21 is formed in an angle shape and guide grooves with a specific length are formed in the two end parts of the top thereof. The slide frame is longitudinally divided into two sections and arranged on the carrier frame 21 slidably and securely in a specific position. A drop preventing member is protruded from the inner one end of the slide frame 22. A stopper 22f is attached on the bottom of the other end part.

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 carrying ore, coal, limestone, earth and sand and the like.

[0002]

2. Description of the Related Art A conventional carrier roller stand is shown in FIG.
As shown in FIG. 2, a chute 2 and a skirt 3 are arranged above both sides of the conveyor belt 1a, and below the belt 1a, a center carrier roller 4 for supporting a conveyor load and maintaining the shape of the belt. A conveyor frame 9 that rotatably supports the side carrier rollers 5a and 5b on supports 6 and 7 attached to a carrier beam 8 and that holds the carrier beam 8 at a predetermined height position is used for transporting on the return side. The configuration is such that the return roller 10 that holds the belt 1b is supported.

In the carrier roller stand having the above-mentioned structure, the center carrier roller 4 and the side carrier rollers 5a and 5b are worn or damaged,
Since there is no gap between the center carrier roller 4 and the belt 1a, the side carrier roller 5a or 5b cannot be replaced unless it is removed. Further, the carrier beam 8 having the center carrier roller 4 and the side carrier rollers 5a and 5b attached thereto
Since it is not divided but is integrated and is fixed to the conveyor hood 9, it is necessary to replace the set of carrier roller stands.

Therefore, conventionally, first, the belt conveyor is stopped and the skirt 3 is removed, and then the belt 1a is pushed up by using a jack, a bar, a chain block, a hammer or the like to form a gap with the side carrier roller 5a or 5b. To remove the side carrier roller 5a or 5b.
Next, similarly, after widening the gap between the belt 1a and the center carrier roller 4, the belt 1b and the carrier beam 8
The worker sneaked into the narrow space between and to replace the center carrier roller 4.

However, the above work is
When creating a gap between the center carrier roller or the side carrier roller and the belt, a load is applied to the equipment, which may damage the equipment. Also, replacement of the center carrier roller is an upward work in a narrow space, and the posture of the worker is extremely limited, so the posture of the worker becomes unstable, especially when the installation position of the belt conveyor is high. In addition, there is a risk of falling, and the degree of danger increases. Further, since the above-mentioned work takes a long time, the belt conveyor is stopped for a long time, and the conveyor efficiency is lowered. There is a problem.

[0006] Therefore, the utility model No. 2-145222, the utility model 64-50214, or the utility model 4-3921.
No. 7 proposes that the center carrier roller and the side carrier roller can be easily replaced. Of these, the one proposed in Japanese Utility Model Laid-Open No. 2-145222 includes side carrier rollers 5a, 5 as shown in FIG.
The support 6 of b is attached to the carrier beam 8 with four bolts 11 in a detachable manner.

As shown in FIG. 6, the one proposed in Japanese Utility Model Application Laid-Open No. 64-50214 includes frames 12 and 13 for supporting the center carrier roller 4 and side carrier rollers 5a and 5b, respectively. To 8,
It is configured so that it can be attached and detached individually.

Further, as disclosed in Japanese Utility Model Publication No. 4-39217, as shown in FIG. 7, a frame for supporting the center carrier roller 4 and side carrier rollers 5a, 5b is divided into two parts 14a and 14b. Each of them is placed on the carrier beam 8 so that it can be slid on the carrier beam 8 and fixed at a predetermined position.

[0009]

Although the above-mentioned proposal makes it possible to easily replace the center carrier roller and the side carrier roller as compared with the conventional carrier roller stand shown in FIG. 4, it is still possible. ,
It has the following problems. That is, in all of the above proposals, the support 6 for supporting the center carrier roller 4 and the side carrier rollers 5a, 5b on the carrier beam 8 and the frames 12, 13, 14a, 14b.
Since it is only mounted on the carrier beam 8 and is fixed to the carrier beam 8 by using bolts, if the center carrier roller 4 and the side carrier rollers 5a and 5b are to be replaced by removing the bolts while the belt conveyor is operating. The center carrier roller 4 and the side carrier rollers 5a and 5b are, due to the resistance associated with the movement of the belt 1a,
There is a risk that the support 6 and the frames 12, 13, 14a, 14b may fall in the moving direction of the belt 1a.

In each of the above-mentioned proposals, the support 6 for supporting the center carrier roller 4 and the side carrier rollers 5a, 5b and the frames 12, 13, 14a, 14b are simply mounted on the carrier beam 8. Since the vertical carrier is not constrained to move vertically, when the center carrier roller 4 and the side carrier rollers 5a, 5b are slid on the carrier beam 8 and pulled out to one side of the belt conveyor, Laura 4
There is also a risk that the weights of the side carrier rollers 5a and 5b incline the side carrier rollers 5a and 5b and cause them to fall off the carrier beam 8.

In addition, in the one proposed in Japanese Utility Model Laid-Open No. 2-145222, the support 7 of the center carrier roller 4 is integrally fixed to the carrier beam 8, so that the center carrier roller 4 is provided on the belt conveyor. Cannot be replaced while driving.

The present invention has been made in view of the above-mentioned conventional problems, and it is possible to easily and quickly replace the center carrier roller and the side carrier roller during the operation of the belt conveyor, and at the time of the replacement. To provide a carrier roller stand for a belt conveyor, in which the center carrier roller and the side carrier roller do not fall in the moving direction of the belt or tilt and fall out of the carrier beam when pulled out to one side of the belt conveyor. It is an object.

[0013]

In order to achieve the above object, a carrier roller stand of a belt conveyor according to the present invention is provided with a center carrier roller and both sides of the center carrier roller, which are slanted so as to become higher toward the outside. A side carrier roller, a support for rotatably supporting these carrier rollers, and a carrier roller stand of a belt conveyor equipped with a carrier beam for erected these supports have a mountain-like shape and both top end portions thereof. The carrier beam is composed of a carrier frame provided with a guide groove of a predetermined length and a slide frame mounted on the carrier frame so as to be slidable and fixable at a predetermined position. The slide frame is divided into two parts in the longitudinal direction, and at one inner end of each of the two divided slide frames, A drop prevention member that fits in the inner groove and restrains the vertical movement and that determines the setting position of the slide frame with the guide groove is provided. A stopper for abutting against the slide frame to determine the end position of the slide frame is attached.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION In a carrier roller stand of a belt conveyor of the present invention, a center carrier roller and side carrier rollers inclined on both sides thereof so as to become higher toward the outside are erected on a carrier beam. In a carrier roller stand of a belt conveyor rotatably supported by a support, a carrier beam is composed of a carrier frame and a slide frame.

The carrier frame has a mountain shape and is provided with guide grooves of a predetermined length at both ends of the top. On the other hand, the slide frame is divided into two parts in the longitudinal direction, and is mounted on the carrier frame so that it can be fixed at a predetermined position by sliding and fixing pins. , A drop prevention member that is fitted in the guide groove to restrain the movement in the vertical direction and that determines the setting position of the slide frame with the guide groove, and the carrier frame on the bottom surface of the other end. This is a structure in which a stopper that abuts on the pedestal and fixes the pulling-out end position of the slide frame is attached.

In the carrier roller stand of the present invention having the above-mentioned structure, when replacing the center carrier roller or the side carrier roller, the fixing pin is pulled out to release the fixing of the slide frame to the carrier frame, and then divided into two. The slide frames can be replaced by simply pulling them out to one side. When the slide frame is pulled out, in the carrier roller stand of the present invention, since the fall prevention member is fitted in the carrier frame, vertical movement is restrained, and the pulling-out end position is determined by the stopper. The slide frame or the like does not drop off from the carrier frame due to the weight of and does not fall in the moving direction of the belt.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A carrier roller stand for a belt conveyor according to the present invention will be described below with reference to an embodiment shown in FIGS. FIG. 1 (a) is a front view of a carrier roller stand of a belt conveyor of the present invention, and is an explanatory view of a replacement state of a center carrier roller and a side carrier roller, and FIG. 1 (b) shows a slide frame and a carrier frame separated vertically. 3A is a front view showing a state where the slide frame and the carrier frame are vertically separated, and FIG. 2B is a side view showing a state where the slide frame and the carrier frame are fitted together. [Fig. 3] is a perspective view showing main parts of a slide frame and a carrier frame.

1 to 3, reference numeral 21 is a carrier frame, 22 is a slide frame, and the carrier frame 21 and the slide frame 22 form a carrier beam 8. And the carrier frame 21 is
As shown in FIG. 2, the shape seen from the side has a mountain shape,
In addition, a guide groove 21a having a predetermined length is provided at both ends of the top portion, and an insertion hole 21b for a fixing pin 23 for fixing the slide frame 22 to the carrier frame 21 at a setting position is provided at a predetermined position on the side surface thereof. is there.

On the other hand, the slide frame 22 includes a center carrier roller 4 and one side carrier roller 5b.
Is divided into one slide frame 22a that is rotatably supported by the supports 6 and 7, and the other slide frame 22b that is rotatably supported by the supports 6 and 7 on the other side carrier roller 5a.
Each of them is formed in a mountain shape similar to the carrier frame 21, for example, and is mounted so as to be slidable on the carrier frame 21.

Then, in order to prevent the slide frame 22 from dropping from the carrier frame 21 when sliding on the carrier frame 21, the inside of the outer ends of the slide frames 22a and 22b are provided with a drawing. Two
As shown in FIG. 3, a drop prevention member 22c fitted in the guide groove 21a of the carrier frame 21 is provided in a protruding manner. In addition, stoppers 21f that contact the pedestal 21c of the carrier frame 21 and determine the pull-out end position of the slide frame 22 are attached to the bottom surfaces of the inner ends of the slide frames 22a and 22b. further,
Each slide frame 22a, 22b is provided with an insertion hole 22d for a fixing pin 23 that is fixed to the carrier frame 21 at the setting position, and a handle 22e for easily pulling out is provided outside the slide frame 22a, 22b. Has been installed.

The carrier roller stand of the present invention is constructed as described above, and has the center carrier roller 4 and the side carrier rollers 5a and 5b in the setting position.
When pulling out and replacing the belt conveyor while the belt conveyor is operating, the procedure is as follows.

First, the fixing pin 23 is pulled out to release the fixation of the slide frame 22 to the carrier frame 21. Next, holding the handle 22e, attach the slide frames 22a and 22b, and the stopper 22f to the pedestal 21.
It is pulled out to the pull-out end position where it comes into contact with c and is positioned outside the belt conveyor. Then, the center carrier roller 4 and the side carrier rollers 5a and 5b are replaced outside the belt conveyor. When the replacement is completed, hold the handle 22e,
The respective slide frames 22a and 22b are pushed to the setting position where the fall prevention member 22c abuts the end point of the guide groove 21a. Finally, the fixing pin 23 is inserted to fix the slide frame 22 to the carrier frame 21.

By the way, in the carrier roller stand of the present invention, when the slide frames 22a and 22b are pulled out and pushed in, the fall prevention member 22c is fitted into the carrier frame 21, so that the slide frame 22
The vertical movement of a and 22b is restricted. In addition, since the carrier frame 21 has a mountain shape and the setting position is determined by the guide groove 21a, the alignment can be easily performed, and the pull-out end position is determined by the stopper 22f.
Slide frames 22a, 22b depending on the weight of 2b, etc.
And the like will not fall out of the carrier frame 21 or fall in the moving direction of the belt a.

[0024]

As described above, in the carrier roller stand of the belt conveyor according to the present invention, the slide frame is divided into two parts, and the vertical movement of the slide frame is restrained on the carrier frame to the outside of the belt conveyor. Since it is slidable, the center carrier roller and side carrier roller can be used as needed without using chain blocks, crowbars, jacks, etc., and without removing the skirt, even during operation of the belt conveyor. Can be replaced in a downward posture in a short time. The belt conveyor connecting portion is particularly effective because the space between the carrier roller stands is small.

By the way, in the case of the conventional carrier roller stand shown in FIG. 4, it took 40 minutes to replace the center carrier roller and the side carrier roller, but when the carrier roller stand of the present invention was adopted, it took 3 minutes. The replacement was completed in a minute.

[Brief description of the drawings]

FIG. 1 (a) is a front view of a carrier roller stand of a belt conveyor according to the present invention, which is an explanatory view of a replacement state of a center carrier roller and a side carrier roller,
(B) is a front view showing a state in which a slide frame and a carrier frame are vertically separated.

FIG. 2A is a side view showing a state in which a slide frame and a carrier frame are vertically separated, and FIG. 2B is a side view showing a state in which the slide frame and the carrier frame are fitted together.

FIG. 3 is a perspective view showing essential parts of a slide frame and a carrier frame.

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

FIG. 5A is a front view of a carrier roller stand of a belt conveyor proposed in Japanese Utility Model Laid-Open No. 2-145222.
(B) is a side view of (a).

FIG. 6 is a front view of a carrier roller stand of a belt conveyor proposed in Japanese Utility Model Publication No. 64-50214.

FIG. 7 (a) is a front view of a carrier roller stand of a belt conveyor proposed in Japanese Utility Model Publication No. 4-39217;
(B) is a side view of (a), and (c) is a drawing in which the center carrier roller and the side carrier roller are in a replacement state in (a).

[Explanation of symbols] 4 center carrier roller 5a side carrier roller 5b side carrier roller 6 support 7 support 8 carrier beam 21 carrier frame 21a guide groove 21c pedestal 22 slide frame 22c fall prevention member 22f stopper 23 fixing pin

Claims (1)

[Claims] 1. A center carrier roller, side carrier rollers inclined on both sides of the center carrier roller so as to become higher toward the outside, supports for rotatably supporting these carrier rollers, and standing supports for these. In a carrier roller stand of a belt conveyor equipped with a carrier beam, which has a mountain shape, and a carrier frame provided with guide grooves of a predetermined length at both top ends thereof,
The carrier beam is configured by a slide frame mounted on the carrier frame so as to be slidable and fixable at a predetermined position. Of these, the slide beam is divided into two in the longitudinal direction, and each of the two is divided into two. At one end of the inside of the slide frame, a fall prevention member is fitted which is fitted into the guide groove to restrain the movement in the vertical direction and which determines the setting position of the slide frame with the guide groove. A carrier roller stand for a belt conveyor, which is provided with a stopper that abuts on a pedestal of a carrier frame and determines a pulling-out end position of a slide frame, on a bottom surface of the portion.