JPH07277439A - Support device of belt conveyor transfer part - Google Patents

Abstract

PURPOSE:To provide a support device of a belt conveyor transfer part to prevent scattering and falling of an article to convey between a skirt rubber and a conveyor belt and easy to correspond with operational abnormality and maintain. CONSTITUTION:A support member to incline and support both side surfaces of a belt 15 at an upward angle in exchange of a carrier roller is provided on both sides of the carrier roller 8 provided on the central part. The support member is installed on a frame 4 and consists of two pieces of rotating drums 2 and a miniature belt 1, and the miniature belt 1 infinitely moves in the same direction of the belt 15. A lift device 7 is provided on one end of the support frame 4, the belt 15 is pressurized on a skirt rubber 12, and the support frame 4 is formed free to be inserted into or released from a frame of a belt conveyor. Additionally, a tension grip 5 is provided on the miniature belt 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt conveyor supporting device immediately below a chute section of a transfer section of a belt conveyor for transporting particles such as ores and coal.

[0002]

2. Description of the Related Art Generally, a transfer section of a belt conveyor is shown in FIG.
As shown in (a) and (b), when the conveyed product 22 from the upstream conveyor 21 falls onto the chute 23, the downstream conveyor belt 15 immediately below the chute 23 receives an impact force and hangs down between the carrier rollers 8. The bent portion 24 is generated, and a gap is generated between the skirt rubber 12 and the conveyor belt 15 to scatter the transported object, which causes falling mine (or falling coal, falling body). If this falling mine or the like is left, it accumulates around the bottom of the conveyor belt 15 and damages the equipment related to the belt conveyor and hinders the operation of the belt conveyor, so it is necessary to collect and remove it. Since it is also work, it puts a heavy burden on the worker and requires a great deal of cost. Furthermore, falling mine or the like also became a dust source and had a bad influence on the environment.

As a measure against this problem, Japanese Patent Laid-Open No. 2-865
No. 02 publication discloses a rollerless transfer device as shown in FIGS. 4 (a) and 4 (b). That is, the carrier roller at the connecting portion is removed at all, and the skirt rubber 1 is hung because the belt hangs down (bends) due to the drop impact of the conveyed object.
It is intended to prevent the transported material from scattering from the gap between the two and the trough type support plate 19 made of high molecular polyethylene on the contact surface with the conveyor belt 15 at the lower part of the belt. In this structure, in terms of friction between the conveyor belt 15 and the support plate 19, the load on the sliding surface is larger than that of the conventional carrier roller. The surface is provided with a plurality of groove portions 18 in the longitudinal direction of the belt to reduce the contact area with the conveyor belt 15 and reduce the frictional resistance with the belt. On the other hand, as shown in FIG. 4B, a skirt plate 11, a skirt rubber 12, and a skirt rubber retainer 13 are provided at the belt width direction end portion so as to prevent falling or the like.

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
The technique of Japanese Patent No. 502 has the following problems. (1) The support plate liner (high molecular weight polyethylene) is liable to be locally abraded mainly due to the frictional force between the central part of the support plate and the belt, which bear the load of the conveyed object, and the wear speed is especially high in a high speed belt conveyor Is large, the life of the liner is shortened and frequent replacement is required. (2) Unlike the conventional conveyors that use carrier rollers, it is not possible to use temporary metal fittings (racing joints, etc.) when the belt is cut laterally, because this will damage the support plate liner, so sudden use during operation It is not suitable to respond immediately to a serious accident.

The present invention has been made in view of the above-mentioned problems of the prior art.
It is an object of the present invention to provide a support device for a belt conveyor connecting portion that solves the problem of the occurrence of falling mine by eliminating the scattering of the conveyed material between the skirt rubber and the conveyor belt.

[0006]

The present invention is to solve the above-mentioned problems and is applied to a belt conveyor supporting device located immediately below a chute of a transfer section in a belt conveyor having a trough-shaped carrier roller. And adopted the following technical means. That is, in place of the carrier rollers arranged at both ends of the belt in the width direction, the belt is driven to rotate 2
A belt conveyor comprising one drum and a mini belt wound between the two drums and moving indefinitely in the same direction as the belt, and equipped with a support member for tilting and supporting both side surfaces of the belt at an upward angle. It is a supporting device for the transfer section.

The support member is attached to the support member frame so that it can be inserted and removed from both ends of the belt conveyor support frame, and is provided with a tensioning means for the mini belt, and the belt can be pressed to the belt end side of the support member frame. It is preferable to provide an elevating means for the support member frame.

[0008]

The structure of the present invention is shown in FIGS. Figure 1 (a)
Is a cross-sectional view, and FIG. 1B shows a plan view of the support member of FIG. FIG. 2 is a side view of the support member shown in FIG. The feature of the present invention is that new support members are provided on both sides of the carrier roller 8 provided in the central portion of the belt conveyor, in place of the conventionally provided carrier roller 8. The support member is composed of two drums 2a and 2b that are driven by the belt 15 and a mini belt 1 that is wound between the two drums 2a and 2b and moves infinitely in the same direction as the belt 15 (in the direction of the arrow). It is attached to the support member frame 4.

The support member frame 4 is constructed so that it can be inserted and removed from both sides of the belt conveyor support frame 10. Further, the support member frame 4 is provided with an elevating device 7 for lifting one end thereof. In addition, as shown in FIG.
A tensioning device 5 for tensioning the mini belt 1 by moving the position of the bearing 3 of the drum 2a is provided. Since the present invention is configured as described above, (a) the belt 1 is provided at both widthwise ends of the belt 15.
5 is supported by the mini-belt 1 as a supporting member, and the pressing force between the skirt rubber 12 and the belt 15 under the chute can be constantly kept constant by the elevating device 7, so that it is possible to prevent falling or the like. Becomes (B) The rotating drums 2a, 2b and the wound mini-belt 1 are integrally mounted in the support member frame 4, and the contact between the belt and the mini-belt 1 is separated by operating the lifting device 7. Since the conveyor supporting frame 10 can be inserted and removed from both sides of the conveyor supporting frame 10, maintenance of the rotary drum 2 and the mini belt 1 can be performed very easily. (C) Since the carrier roller 8 is used at the central portion in the width direction of the belt, which has the largest impact force when the conveyed object is dropped, friction with the belt is caused as in the rollerless transfer device shown in the related art of FIG. Does not increase power. And so on.

[0010]

EXAMPLE An example in which the present invention is applied to a connecting portion of a belt conveyor for powder ore having a transportation capacity of 1700 t / h and a belt width of 1200 mm will be described with reference to FIGS. 1 and 2. With the carrier roller 8 provided at the widthwise center of the belt conveyor,
Instead of the conventional carrier rollers, support members are provided at both ends of the belt conveyor, and both ends of the belt are tilted and supported upward.

As shown in FIG. 1 (b), the support member is a rotary drum 2 (2a,
2b), a mini belt 1 (for example, a stainless steel plate, an ordinary steel plate, etc.) wound between the drums 2, and a bearing 3 for one rotating drum 2a of one of the pair of rotating drums in order to maintain the tension of the mini belt 1. The tensioning device 5 is attached to one side or both sides. Therefore, it becomes possible for the mini-belt 1 which is wound while maintaining a tension state to support the side surface of the conveyor belt 15 in a state of a surface, and for this reason, the impact force when the conveyed product (powder granules) falls As a result, the conveyor belt 15 between the carrier rollers 8 is prevented from sagging, and it is possible to prevent the conveyed product from scattering from the gap between the skirt rubber 12 and the conveyor belt 15.

Further, this supporting member frame is shown in FIG.
As shown in (a) and FIG. 2, it is mounted on the frame base plate 6 via the frame elevating device (jack) 7 and the joining pin 14, and one side of the supporting member frame 4 can be always pushed upward and supported. Is configured. Therefore, at both ends of the conveyor belt 15 shown in FIG. 1A, the conveyor belt 15 is constantly pressed against the skirt rubber 12 with a constant pressing force due to the tension of the mini-belt 1 and the lower end of the skirt rubber 12. Since the pressing force with the sliding contact surface with the conveyor belt 15 can be maintained, it is possible to prevent the transported object from scattering.

Further, the rotary drum bearing 3 and the mini belt 1
When inspecting and replacing, etc.
A space is provided between the frame base plate 6 and the conveyor belt 15 by lowering the frame base plate 6 and the frame base plate 6 can be easily pulled out to the outside of the conveyor belt 15.

[0014]

According to the present invention, the durability of the conveyor belt is not impaired, the side surface of the conveyor belt is supported by the tensioned support member, and the conveyor belt is made of skirt rubber so as to eliminate the gap with the skirt rubber. On the other hand, since the pressing is performed with a constant pressing force, the spillage of the load from the conveyor belt is eliminated, which contributes to the improvement of the working environment, and also has the following excellent effects. (1) The present invention can be applied to places such as a high-speed, high-load conveyor connecting section that cannot be adopted by the conventional technology. (2) A rotating drum arranged at a predetermined interval and a mini belt wound in a tension state between the rotating drums are integrally mounted on a supporting member frame, and the supporting member frame is attached to a belt conveyor supporting frame. Since it can be inserted and removed from both sides, it is easy to handle and maintain during abnormal operations.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an embodiment of the present invention, and FIG.
Is a cross-sectional view, and FIG. 1B is a plan view of the support member of FIG.

FIG. 2 is an explanatory diagram of a side surface of an embodiment of the present invention.

3A and 3B are explanatory views of a conventional technique, a side view of FIG. 3A and a sectional view of FIG.

4A and 4B are explanatory views of a conventional technique, FIG. 4A is a perspective view, and FIG. 4B is a sectional view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 mini belt 2, 2a, 2b rotating drum 3 bearing 4 support member frame 5 mini belt tensioning device 6 support member frame base plate 7 support member frame lifting device 8 carrier roller 9 carrier roller cradle 10 belt conveyor support frame 11 Skirt plate 12 Skirt rubber 13 Skirt rubber retainer 14 Joining pin 15 Conveyor belt 16 Return roller 17 Engaging 18 Groove 19 Support plate 20 End fixing material 21 Upstream belt conveyor 22 Conveyed material 23 Chute 24 Bent portion

 ─────────────────────────────────────────────────── ─── Continuation of front page (71) Applicant 000001199 Kobe Steel, Ltd. 1-3-18 Wakihama-cho, Chuo-ku, Kobe-shi, Hyogo (72) Inventor Kunihiro Tanaka 1, Kawasaki-cho, Chuo-ku, Chiba Kawasaki Steel Co., Ltd. Company Chiba Steel Works (72) Inventor Akira Kato 1 Kawasaki-cho, Chuo-ku, Chiba City Kawasaki Steel Co., Ltd. Chiba Steel Works (72) Inventor Shinichi Shibusawa Oka No. 3, Kashima-cho, Kashima-gun, Ibaraki Sumitomo Metal Industries Kashima Co., Ltd. Inside the steelworks (72) Inventor Junichi Matsumoto 1 Kanazawa-machi, Kakogawa City, Hyogo Prefecture Kamido Steel Works Co., Ltd. Inside Kakogawa Steel Works (72) Inventor Masao Kurita 1 Kanazawa-machi, Kakogawa City, Hyogo Prefecture Kakogawa Steel Works Co., Ltd. In-house (72) Kazuhiro Kikuchi Kazuhiro Kikuchi 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nihon Steel Pipe Co., Ltd. (72) Inventor Moto Tsuyoshi Marunouchi 1-2-2 Marunouchi, Tokyo Nihon Kokan Co., Ltd. (72) Inventor Yoshisumi Kawaguchi 1 Konnocho, Kokurakita-ku, Kitakyushu City Sumitomo Metal Industries, Ltd. Kokura Works (72) Inventor Morishita Shimo Wakayama City Minato 1850 Sumitomo Metal Industries Co., Ltd. Wakayama Steel Works (72) Inventor Yasuhiro Shioashi 1 Kanazawacho, Kakogawa City, Hyogo Prefecture Kadogawa Steel Works Kakogawa Steel Works

Claims (2)

[Claims] 1. A support device for a belt conveyor located immediately below a chute of a transfer section of a belt conveyor having a trough-shaped carrier roller, wherein the carrier rollers are provided at both widthwise ends of the belt, It is composed of two drums driven by the belt and a mini-belt wound between the two drums and moving indefinitely in the same direction as the belt, and is equipped with a support member that tilts and supports both side surfaces of the belt at an upward angle. A support device for a belt conveyor connecting section. 2. The support member is removably mounted on the support member frame from both ends of the belt conveyor support frame, and is provided with a tensioning means for the mini belt, and the belt is provided on the belt end side of the support member frame. The support device for a belt conveyor connecting portion according to claim 1, further comprising an elevating means for raising and lowering the supporting member frame.