JPH0687321U - Conveyor belt support device - Google Patents

Abstract

(57) [Abstract] [Purpose] Prevents overflowing and falling of conveyed objects caused by bending of the belt between carrier rollers, prevention of local abrasion of belt support plate, improvement of maintenance management and operation abnormality response, for short distances, To ensure adaptability to high-speed heavy load conveyors. A conveyor belt supporting device (5) at a load receiving position such as a connecting portion of a belt conveyor (2) configured to support and run a conveyor belt (2A) by a trough-shaped carrier roller, and conveys between carrier rollers (7) at the load receiving position. Horizontal roller 2 that supports the central portion of belt 2A
3 is provided, the belt support plate 21 made of a smooth surface body is provided on both outer sides of the roller 23 in the belt width direction at the same angle as the inclined roller of the carrier roller 7, and is movable in the belt width direction from both outer sides. Can be inserted or pulled out on both sides.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a conveyor belt supporting device provided at a load receiving position on a belt conveyor, for example, a position at which a conveyed product falls from a chute or a hopper, or a connecting portion from an upstream conveyor.

[0002]

[Prior art]

 Generally, a belt conveyor that supports the belt by trough-shaped carrier rollers and circulates is used to convey lumps of ore, coal, etc., or powders of earth, sand, cement, etc. (hereinafter simply referred to as “carried items”). Has been done. That is, in the conveyor 31, as illustrated in FIG. 5, a central horizontal roller 32 parallel to the belt width direction and tilt rollers 33 on both outer sides of the roller 32 are rotatable on a carrier stand 34. A large number of trough-shaped carrier rollers 35 provided on the conveyor frame 36 are arranged on the conveyor frame 36 at predetermined intervals, and the endless conveyor belt 37 is supported by these carrier rollers 35.

A chute 39 having a rubber skirt 38 at its lower end is arranged at the load receiving position of the conveyor 31. By the way, the conveyor belt 37 right below the chute 39, that is, at the load receiving position where a conveyed product is dropped and introduced, is provided with a means for reducing the impact and the like caused by dropping and introducing the conveyed product and protecting the belt. .

Conventionally, as a supporting device for this kind of conveyor belt, as shown in FIG. 6, the back surface of the conveyor belt 37 is provided on the lower surface of a plurality of polymer polyethylene plates 40 so that the conveyor belt 37 has a trough shape. It is known that an elastic body 41 is adhered to and supported by an integrated impact resistant liner 42 and slid (see, for example, Japanese Utility Model Publication No. 2-40010). The liner 42 continuously extends in the traveling direction of the conveyor belt 37.

Further, as illustrated in FIG. 7, a large number of sliding contact support plates 44 having grooves 43 extending in the belt traveling direction are provided on a carrier stand 45 in an arc shape in the belt width direction (a buffer face plate (not shown)). ), Which are arranged in a row in the belt width direction are also known (see JP-A-2-86502). The common features of these prior arts are, in a trough-shaped belt conveyor, a smooth trough-shaped sliding plate that is continuous in the belt traveling direction, and the material and shape of the sliding plate in the trough-shaped cross-sectional direction. The sliding plate mounting method, the cushion material shape, and the trough-shaped adjustment mechanism have their respective characteristics.

[0006]

[Problems to be solved by the device]

 By the way, each of the above prior arts has the following problems. That is, (a) since the belt supporting portion at the load receiving position is long, the sliding plate at the center of the trough is likely to be locally worn due to the sagging of the belt. (B) Since the width of the cross section of the trough is wider than the width of the belt, the conveyed articles overflowing from the belt are caught between the sliding plates, causing local wear of the sliding plates. (C) When repairing or replacing the equipment, it is necessary to disassemble from the skirt on the belt, and maintainability is poor. (D) The responsiveness to sudden accidents during operation is poor, such as unloading at the load receiving position when the belt is stopped excessively and using emergency connecting metal fittings when the belt is crossed. (E) Since the belt and the sliding plate are in surface contact with each other, the frictional resistance is large, and it is difficult to use for a short distance conveyor. (F) It is difficult to use as a belt conveyor for high-speed heavy loads used in steelworks.

The present invention has been made in view of the above problems, and an object of the present invention is to prevent overflow and fall of a conveyed product caused by bending of a belt between carrier rollers. An object of the present invention is to provide a conveyor belt supporting device capable of preventing local abrasion of the belt supporting plate, improving maintenance management and handling of abnormal operation, and ensuring adaptability to short distance and high speed heavy load conveyors.

[0008]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention takes the following technical means. That is, the present invention is a conveyor belt supporting device at a load receiving position of a belt conveyor, in which a conveyor belt is supported and run by a trough type carrier roller, and the center of the conveyor belt is provided between the carrier rollers at the load receiving position. A horizontal roller for supporting the section is provided, and a belt support plate made of a smooth surface member is arranged on both outer sides of the horizontal roller in the belt width direction at the same inclination angle as the inclined rollers on both sides of the carrier roller. I am trying.

Further, the present invention is characterized in that the belt support plate is movable in the belt width direction and can be inserted from both outer sides or pulled out to both outer sides.

[0010]

[Action]

 According to the present invention, since the central portion in the width direction of the conveyor belt is supported by each roller, local abrasion is eliminated and the conveyed articles overflowing from the belt are not caught. In addition, since both sides of the conveyor belt in the width direction are alternately supported by the carrier roller and the belt support plate, the friction resistance is reduced, and abnormal tension is not applied to the belt. As a result, the gap between the bottom edge of the skirt and the sliding surface of the belt is constant, and the overflow of conveyed goods from the bottom edge of the skirt is eliminated.

Further, since each belt support plate is movable in the belt width direction, and can be inserted from both outsides and can be pulled out to both sides outwardly, the belts on the conveyor belt can be repaired when the device is repaired or replaced. It is not necessary to remove the skirt part of the product, and it is easy to deal with accidental accidents during operation such as excessive belt stoppage and belt lateral breakage.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show an embodiment of the present invention, in which a downstream belt conveyor 2 is arranged immediately below an upstream belt conveyor 1 and a load receiving position is surrounded between the upstream and downstream belt conveyors 1 and 2. Thus, the conveyed object guide chute 3 is provided, the skirt 4 made of an elastic material such as rubber is detachably attached to the lower end of the chute 3, and the load receiving support device 5 for the downstream conveyor belt 2 is provided at the load receiving position. It is mounted on the conveyor frame 6.

In the belt conveyors 1 and 2, the conveyor belts 1A and 2A are supported by rollers having the same structure as the trough-shaped carrier roller 7 shown in FIG. The normal interval is set based on the dimension that does not cause sagging when the conveyor belts 1A and 2A are conveyed by the maximum permissible amount.

The supporting device 5 comprises a trough-shaped carrier roller 7 shown in FIG. 2 and a support 8 shown in FIGS. 3 and 4 disposed between the rollers 7, and the trough-shaped carrier roller 7 is arranged. The interval is twice the normal carrier roller interval other than the load receiving position. The trough-shaped carrier roller 7 is, as shown in FIG. 2, a support frame 10 mounted on the left and right conveyor frames 6 via cushioning rubbers 9 in a direction orthogonal to the frame 6, and is erected on the frame 10. A roller stand 11, a central horizontal roller 12 rotatably supported by the roller stand 11 in parallel with the frame 10 and inclined rollers 13 on both sides thereof, and the three rollers 12, 13 are troughs. It has a shape.

As shown in FIGS. 3 and 4, the support member 8 includes a pair of left and right base plates 15 mounted on the conveyor frame 6 in parallel with the frame 6 via a cushioning rubber 14 with bolts and nuts. Front and rear (front and back in the belt advancing direction) two face body support rails 16 fixed to the left and right base plates 15 at right angles to each other and parallel to each other, and roller support frames 17 fixed to each other between the rails 16 in parallel to each other. The left and right face piece support stands 19 slidably mounted on the rails 16 via cushion rubbers 18, the face piece support side frames 20 laid on the front and rear stands 19, and the frame 20 The belt face support plate 21 fixed to the support frame 17 and the support frame 17 are rotated in parallel with the trough-shaped carrier roller 7 via a roller stand 22. It is composed of a horizontal roller 23 pivotably supported.

The rail 16 and the support frame 17 are formed of, for example, chevron members, the support frame 17 is located in the center of both rails 16, and is further positioned outside both rails 16 so that both rails 16 are positioned. The stand fixing member 24 is installed on the lower connecting member. A slide shoe 19A made of, for example, a chevron is fixed to the lower end of the face support stand 19, and a cushion rubber 18 is attached to the inner surface facing the slide shoe 19A so as to absorb the falling impact of the conveyed object.

A stand fixing plate 25, which corresponds to the stand fixing member 24 and can be placed thereon, is fixed to the slide shoe 19 A of the stand 19, and the fixing plate 25 is interposed via a cushioning rubber 26. Is attached to the stand fixing member 24 so as to be detachable and positionally adjustable, and the face plate supporting plate 21 can be moved together with the stand 19 in the width direction of the belt 2A and can be pulled out to the left and right.

The length of the side frame 20 is slightly shorter (10 to 50 mm) than the distance between the roller surfaces of the front and rear trough-shaped carrier rollers 7, and both front and rear ends thereof are bent slightly downward, and The upper surface of the frame 20 is inclined at the same angle as the inclination angle of the inclined roller 13 so that the upper surface of the face plate support plate 21 and the surface of the inclined roller 13 coincide with each other.

Further, the conveyor belt width direction outer end of the face supporting side frame 20 is shorter than the belt end portion by 30 to 150 mm, but it supports the chute 3 at the lower end of the skirt 4 closer to the center in the belt width direction. Therefore, the end portion of the belt 2A does not hang down, and the conveyed product does not overflow. The belt face plate support plate 21 is made of a liner material (general-purpose resin material or stainless steel plate) having a low friction resistance and a smooth surface, and is replaceably attached to the upper surface of the side frame 20 by a flat head bolt or the like. Further, the fixed position of the stand 19 is shifted to the outside as much as possible from the central portion of the conveyor belt 2A so as not to be directly affected by the falling impact of the conveyed object.

According to the above-described embodiment, the lower part of the conveyor belt 2A in the range where the skirt 4 at the lower end of the chute 3 is in sliding contact is the horizontal portion of the trough-shaped carrier roller 7 and the supporting body 8 whose central portion matches the capacity of the belt conveyor 2. The conveyor belt 2A is supported by the rollers 12 and 23, and both ends of the conveyor belt 2A in the width direction are alternately supported by the inclined roller 13 of the trough-shaped carrier roller 7 and the belt face support plate 21 of the support 8. Since there is no sagging between the rollers due to changes in the above-mentioned load and deterioration of the belt over time, the gap between the lower end of the skirt 4 and the sliding contact surface of the conveyor belt 2A can be easily and constantly maintained, so that the skirt 4 It is possible to prevent the conveyed items from overflowing.

Further, the central portion of the conveyor belt 2A is supported by the horizontal rollers 12 and 23 having an interval that matches the belt conveyor ability, and the face support plate 21 has a lengthwise dimension of 2 between the horizontal rollers 12 and 23. Since it is set to slightly less than twice, abnormal tension is not applied to the conveyor belt 2A, and local abrasion can be prevented and durability can be improved. Furthermore, since the width of the trough cross section is narrower than the belt width, even if the conveyor overflows from the belt, it will not be caught.

Moreover, since the face plate support plate 21 is movable in the belt width direction, the gap between the back surface of the conveyor belt 2A and the back surface of the conveyor belt 2A can be flexibly adjusted according to the grain size of the conveyed product, and when the device is repaired or replaced, It is easy to deal with troubles during operation when the belt is stopped excessively, and it is not necessary to remove the skirt 4 as in the past. Further, according to the above-described embodiment, the support 8 has a simple can-making structure and is compact, except for the face support plate 21 and the horizontal roll 23, so that the manufacturing cost can be significantly reduced.

The present invention is not limited to the above-mentioned embodiment, and the design can be changed appropriately.

[0024]

[Effect of device]

 As described above, the present invention is a conveyor belt supporting device at a load receiving position of a belt conveyor, in which a conveyor belt is supported by trough-shaped carrier rollers to run, and the conveyor belt is supported between the carrier rollers at the load receiving position. A horizontal roller for supporting the central portion of the belt is provided, and a belt support plate made of a smooth surface body is arranged on both outer sides of the horizontal roller in the belt width direction at the same inclination angle as the both side inclined rollers of the carrier roller. Therefore, the durability of the conveyor belt is not impaired and the gap between the conveyor belt and the lower end of the skirt such as a chute can be kept constant by the support of the face piece. Overflow can be eliminated and the working environment can be improved. In addition, the conveyor from two or three upstream belt feeders can be used. Transit section, short conveyors transit portion of the belt feeder and the yard crane, and high-speed and heavy load conveyor transit unit, etc., in the prior art can be adopted to could not be adopted point.

Further, the present invention is characterized in that the belt support plate is movable in the belt width direction and can be inserted from both outer sides or pulled out to both outer sides. In addition to maintenance management such as replacement, it is extremely easy to deal with operational abnormalities such as excessive belts and lateral breaks, and it is possible to improve the operating rate.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

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

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is a front view of the belt support of the embodiment.

FIG. 5 is a vertical sectional side view showing a conventional example.

FIG. 6 is a vertical cross-sectional side view showing a main part of another conventional example.

FIG. 7 is a perspective view showing still another conventional example.

[Explanation of symbols]

 2 Belt conveyor 2A Conveyor belt 5 Support device 7 Trough type carrier roller 13 Inclined roller 21 Belt support plate 23 Horizontal roller

 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 000001258 Kawasaki Steel Co., Ltd. 1-228 Kitahonmachi-dori, Chuo-ku, Kobe-shi, Hyogo (72) Inventor Junichi Matsumoto 1 Kanazawa-cho, Kakogawa-shi, Hyogo Kami Co., Ltd. To Steel Works, Kakogawa Works (72) Inventor Masao Kurita, 1 Kanazawa-machi, Kakogawa, Hyogo Prefecture Kami Co., Ltd.Katogawa Works, Kakogawa Works (72), Yasuhiro Shioashi, Kanazawa-cho, Kakogawa, Hyogo Prefecture, Kamizawa Co., Ltd. To Steel Works, Kakogawa Works (72) Inventor Yoshisumi Kawaguchi, 1 Kunomi-cho, Kokurakita-ku, Kitakyushu, Fukuoka Sumitomo Metal Industry Co., Ltd. Industrial Co., Ltd. Wakayama Works (72) Inventor Shoji Hamaya 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nihon Steel Pipe Co., Ltd. Company (72) Inventor Tsuyoshi Niimoto 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nihon Steel Pipe Co., Ltd. (72) Inventor Tadao Katayama 1 Kawasaki-cho, Chuo-ku, Chiba, Chiba Kawasaki Steel Co., Ltd. Chiba Co., Ltd. Inside the Steel Works (72) Kunihiro Tanaka, 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Kawasaki Works Chiba Works

Claims (2)

[Scope of utility model registration request] 1. A conveyor belt supporting device at a load receiving position of a belt conveyor, wherein the conveyor belt is supported by a trough-shaped carrier roller to run.
Horizontal rollers supporting the central portion of the conveyor belt are provided between the carrier rollers at the load receiving position, and belt support plates made of smooth surface bodies are provided on both outer sides of the horizontal rollers in the belt width direction. A support device for a conveyor belt, which is arranged at the same inclination angle as. 2. The conveyor belt supporting device according to claim 1, wherein the belt supporting plate is movable in the belt width direction and can be inserted from both outer sides or pulled out to both outer sides.