JPH0738036U - Skirt mounting structure at belt conveyor connecting section - Google Patents

Abstract

(57) [Summary] [Purpose] The gap between the skirt and the belt caused by the wear of the skirt can be automatically adjusted to prevent the spillage of cargo due to the blowout of transported goods. A belt having a chute 4 at the upstream end load receiving position of the belt conveyor 3 for transferring the transported material from the conveyor 2, and a plate-like skirt 11 made of an elastic material such as rubber at a lower portion 4A of the chute 4. In the conveyor connecting section 1, the skirt 11 is mounted on a rectangular frame-shaped mounting frame 9, and the mounting frame 9 is attached to the shaft support bracket 14, the connecting pin 8, the suspension bolt 7, the compression spring 5, the spring washer 1.
7, is attached to the chute 4 by suspension through the nut 18, the mounting bracket 6, and the skirt 11 is worn,
The compression spring 5 is provided in the gap between the conveyor belt 3A and the skirt 11.
Automatically keeps constant.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a belt conveyor connecting portion arranged at a load receiving position for transferring bulk cargo such as ore and quarry from a feeder, a conveyor or the like to a belt conveyor, and particularly to a skirt mounting structure thereof.

[0002]

[Prior art]

 In general, the transfer portion of the belt conveyor is located at the upstream end of the downstream conveyor 31 as shown in FIG. 5, and is received by the belt 31A that is transporting the cargo falling from the upstream conveyor 32 through the chute 33. , It is designed to be transported to the downstream end. When the transported material is or contains powder particles, a part of the transported material that has fallen onto the belt 31A blows off from the side of the belt 31A and scatters dust around the conveyor 31 for work. Harm the environment.

Conventionally, as a means for preventing dust scattering, as shown in FIG. 6, rubber plate-like skirts 35 are exchanged on both sides of the lower end of the chute 33 in the width direction of the belt 31A via mounting plates 34 and mounting members 36. It is mounted so that the gap between the belt 31A and the chute 33 is eliminated.

[0004]

[Problems to be solved by the device]

 By the way, in the above-mentioned conventional technique, the lower end of the plate-like skirt 35 is slidably contacted with the belt 31A. There is a problem that a gap is created in the skirt 35 and a spilled product is generated due to the blowout of the transported material, and it is necessary to adjust and replace the skirt 35 due to wear each time.

The present invention has been made in view of the above situation, and an object thereof is to make it possible to automatically adjust a gap between a skirt and a belt, which is generated due to wear of the skirt, and to make the skirt due to the wear. (EN) It is possible to provide a skirt mounting structure at a transfer section of a belt conveyor that can avoid adjustment work and prevent spillage of goods due to blowout of transported goods.

[0006]

[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 belt conveyor connecting portion which has a chute for transferring the transported material from the feeder, conveyor, etc. at the upstream end load receiving position of the belt conveyor and a skirt made of an elastic material such as rubber under the chute. In the above, the skirt is suspended on a chute via a compression spring.

Further, the present invention is characterized in that a rectangular frame-shaped mounting frame is attached to an upper end portion of the skirt. Further, the present invention is characterized in that a suspension connecting portion between the mounting frame and the chute has a pin structure, and a lower limit stopper for restricting a lower limit of the skirt is provided.

[0008]

[Action]

 According to the present invention, the skirt is kept in contact with the conveyor belt with a constant pressing force by the downward pressing force of the compression spring, and is held so that a gap between the lower end of the skirt and the contact surface of the conveyor belt does not occur. It Therefore, even if the conveyor belt is worn by sliding contact with the lower end of the skirt, there is no gap between the two, and the package dropped from the suit onto the conveyor belt does not blow out from the lower end of the skirt.

Further, the upper portion of the skirt is fixed from the four sides by the mounting frame to ensure the rigidity, the forward tilt does not occur, and the durability is improved. Since the suspension connecting portion between the attachment frame of the skirt and the chute has a pin structure, the thrust force in the belt traveling direction due to the friction between the skirt and the conveyor belt is released by the pin mechanism.

Further, even if the skirt is worn by the lower limit stopper of the skirt, the mounting frame does not come into contact with the conveyor belt, and there is no risk of damaging the conveyor belt.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 to 3, reference numeral 1 denotes a belt conveyor connecting portion, which is provided between the downstream end of the upstream belt conveyor 2 and the upstream end of the downstream belt conveyor 3, that is, at the load receiving position of the conveyor 3, The chute 4, the scout mounting frame 9 mounted on the lower end of the chute 4 via the compression vane 5, the mounting bracket 6, the suspension bolt 7, and the connecting pin 8, and the mounting member 10 on the mounting frame 9. It is composed of a plate-shaped skirt 11 made of an elastic material such as rubber, which is detachably attached, and a skirt lower limit regulating stopper 12.

In the downstream belt conveyor 3, the upper and lower surfaces of the belt 3A are supported by carrier rollers or impact rollers 13A, 13B, 13C at required intervals, and the change in the amount of transported goods on the belt 3A and the change over time in the belt 3A. It is prevented that the rollers hang down due to, for example, so that the lower end of the skirt 11 can be brought into sliding contact with no gap.

As shown in FIG. 2, the lower end portion 4A of the chute 4 is narrowed in the belt width direction so that the cargo exit is narrower than the width of the belt 3A, and at least the belt traveling direction in the belt moving direction is The lower part of the skirt 4A is cut off so as not to hinder the passage of the transported object, and the mounting frame 9 is arranged outside the lower end part 4A of the skirt. The skirt attachment frame 9 is formed into a rectangular shape by connecting and integrating frame bodies 9A arranged on both outer sides of the skirt lower end portion 4A to each other at both ends by connecting frame members 9B. Skirt mounting plates 9C extending downward from the ends are fixed in parallel to each other, and pin shaft support brackets 14 are provided at outer ends of the frame 9A (both ends in the belt width direction) at arbitrary intervals. Is fixed and the stopper bar 15 is erected.

The mounting brackets 6 are horizontally fixed to both outer surfaces of the chute 4 in the width direction of the conveyor belt in correspondence with the pin shaft support brackets 14 of the mounting frame 9, and a stopper locking plate 16 is provided. The mounting bolts 6 are vertically penetrated by the suspension bolts 7 in the vertical direction, and the stopper bolts 15 are vertically penetrated by the stopper plates 16. .

The lower end of the suspension bolt 7 is attached to the pivot bracket 14 so as to be able to swing back and forth in the belt moving direction by a horizontal pin 8 parallel to the belt width direction so that it can be placed on the upper side of the attachment bracket 6. The compression spring 5 is externally fitted to the bolt 7, and a nut 18 is screwed onto the upper end of the bolt 7 via a spring washer 17.

Therefore, the skirt 11, the skirt mounting frame 9, etc. are connected to the chute via the shaft support bracket 14, the pins 8, the suspension bolts 7, the nuts 18, the spring washers 17 and the compression springs 5 that form the suspension connection portion. The pressing force of the lower end of the skirt 11 with respect to the conveyor belt 3A suspended by the skirt 11 is adjusted by adjusting the own weight of the skirt 11, the skirt mounting frame 9 and the like by the compression spring 5 so that a constant and appropriate surface pressure (0.4 0.3 kg / cm ² ) is obtained.

In consideration of the contact pressure between the surface of the conveyor belt 4A and the skirt 11, it is desirable to set the surface pressure within the buckling strength of the skirt 11, and the suspension connecting portion has a pin structure. Therefore, it is designed to flexibly respond to the thrust force in the belt traveling direction generated by the friction between the conveyor belt 4A and the skirt 11.

As shown in FIG. 4, the attachment member 10 of the skirt 11 is a skirt suspension bar 20 which is horizontally protruded from the opposite outer surface of the skirt attachment plate 9 C at appropriate intervals and has cotter holes 19. And a skirt pressing body 21 composed of a plate member 21B having an upper end fixed in parallel to the web of the groove member 21A at the lower flange end of the groove member 21A having a length substantially the same as the skirt 11 in the conveyor traveling direction, Consists of a cotter 22.

The bar 21A web of the skirt pressing body 21 is provided with bar insertion holes 23 corresponding to the skirt suspension bars 20 at the same intervals as the skirt suspension bars 20 and inserted into the insertion holes 23. At this time, most of the cotter hole 19 is projected from the outer side surface of the web of the channel member 21A, and the cotter 22 fitted in the cotter hole 19 causes the scot pressing body 21 to move toward the skirt mounting plate 9C side. Then, the skirt 11 is fixedly attached by the mounting plate 9C and the skirt pressing plate 21.

The skirt 11 is made of a plate-shaped body made of an elastic material such as rubber, and has bar insertion holes 24 at its upper end corresponding to the suspension bar 20 at the same intervals. The skirt lower limit restricting stopper 12 includes a stopper bar 15 provided upright on the mounting frame 9, a stopper locking plate 16 which vertically penetrates the bar 15 and is fixed to a lower end 4A of the chute, and a stopper bar. 15 and a locking nut 25 screwed to the upper end of the skirt 11 so as to be vertically adjustable. Even if the skirt 11 is worn and lowered by sliding contact with the belt 3A, the lower end of the plate member 21B of the skirt pressing body 21 is the bell. It is designed to prevent the contact with the contact 3A.

According to the above embodiment of the present invention, the skirt 11 is vertically movable with respect to the chute 4, and is suspended via the compression spring 5, so that the pressing force against the conveyor belt 3A is always maintained. It can be kept constant (0.4 to 0.3 kg / cm ² ), and even if abrasion occurs due to friction between the lower end of the skirt 11 and the contact surface of the conveyor belt 3A, it is maintained so that there is no gap between the two. 11 It is possible to prevent the package from blowing outward from the bottom edge.

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

[0023]

[Effect of device]

 As described above, the present invention is a belt that has a chute for transferring transported materials from a feeder, a conveyor, etc. at the upstream end load receiving position of the belt conveyor, and a skirt made of an elastic material such as rubber under the chute. Since the skirt is suspended on the chute via the compression spring at the conveyor connecting portion, the skirt is always brought into contact with the conveyor belt with a constant pressing force so that the skirt lower end and the conveyor belt contact surface are contacted with each other. Even if abrasion occurs due to friction, the skirt does not descend automatically to create a gap between the skirt and the conveyor belt, and therefore, it is possible to prevent the cargo from being blown out from the lower end of the scat, and to prevent the cargo from escaping from the conveyor. It is possible to improve the work environment by eliminating spills and reduce the number of replacements due to skirt wear. You can

Further, the present invention is characterized in that a rectangular frame-shaped mounting frame is attached to the upper end of the skirt, so that the skirt can have rigidity and prevents the skirt from falling forward. It is possible to improve durability. Since the present invention is characterized in that the suspension connecting portion between the mounting frame and the chute has a pin structure, it escapes against the thrust force in the belt traveling direction due to the friction between the skirt and the conveyor belt. It is possible to improve the durability of the skirt.

Further, the present invention is characterized in that the lower limit stopper for restricting the lowering limit of the skirt is provided, so that even if the skirt is worn down, the skirt mounting plate or the like will cause the conveyor belt to move. Can be prevented, and the conveyor belt can be protected.

[Brief description of drawings]

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

FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG.

3 is an enlarged cross-sectional view taken along the line BB of FIG.

FIG. 4 is an enlarged view of portion C of FIG.

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

FIG. 6 is an enlarged cross-sectional view taken along line DD of FIG.

[Explanation of symbols]

 1 Belt Conveyor Transfer Section 2 Upstream Belt Conveyor 3 Downstream Belt Conveyor 3A Conveyor Belt 4 Chute 4A Chute Lower 5 Compression Spring 7 Suspension Bolt 8 Connection Pin 9 Mounting Frame 11 Skirt 12 Skirt Lower Limit Stopper

 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 000002118 Sumitomo Metal Industries, Ltd. 4-53-3 Kitahama, Chuo-ku, Osaka-shi, Osaka (72) Inventor Yasuhiro Shioashi 1 Kanazawa-machi, Kakogawa-shi, Hyogo Kami Co., Ltd. Inside the Kakogawa Steel Works, Todo Works (72) Junichi Matsumoto, 1 Kanazawa-machi, Kakogawa City, Hyogo Prefecture Kamido Co., Ltd. Inside the Kakogawa Works, Kakogawa Steel Works (72), Masao Kurida, Kanazawa-cho, Kakogawa City, Hyogo Prefecture, Kamido Co., Ltd. Steel Works Kakogawa Steel Works (72) Inventor Tadao Katayama 1 Kawasaki-cho, Chuo-ku, Chiba City, Chiba Prefecture Kawasaki Steel Co., Ltd. Chiba Steel Works (72) Akira Kato 1 Kawasaki-cho, Chuo-ku, Chiba Prefecture Kawasaki Steel Inside Chiba Steel Works (72) Inventor Kunihiro Tanaka 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Kawasaki Steel Co., Ltd. Chiba Steel Co., Ltd. (72) Inventor Shoji Hamaya 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nihon Steel Tube Co., Ltd. (72) Inventor Kazuhiro Kikuchi 1-2-1 Marunouchi, Chiyoda-ku, Tokyo Nihon Steel Tube Co., Ltd. ( 72) Inventor Tsuyoshi Niimoto 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nihon Steel Pipe Co., Ltd. (72) Inventor Yoshisumi Kawaguchi Sumitomo Metal Industries, Ltd. Kokura, Kobuki-cho, Kitakyushu, Kitakyushu, Fukuoka Inside the Steel Works (72) Inventor Shigeru Morishita Inside the Wakayama Works, Sumitomo Metal Industry Co., Ltd. 1850 Minato Minato, Wakayama City, Wakayama Prefecture

Claims (4)

[Scope of utility model registration request] 1. A belt conveyor connecting portion having a chute for transferring a transported material from a feeder, a conveyor and the like at a load receiving position on an upstream end of the belt conveyor, and a skirt made of an elastic material such as rubber under the chute. A skirt mounting structure in a belt conveyor connecting portion, wherein the skirt is suspended on a chute via a compression spring. 2. The skirt mounting structure for a belt conveyor connecting portion according to claim 1, wherein a rectangular frame-shaped mounting frame is mounted on an upper end portion of the skirt. 3. The skirt mounting structure for a belt conveyor connecting portion according to claim 2, wherein the suspension connecting portion between the mounting frame and the chute has a pin structure. 4. The skirt mounting structure in a belt conveyor connecting portion according to claim 1, further comprising a lower limit stopper that regulates a lowering limit of the skirt.