Flexible chain scraping and sweeping device

By installing a flexible scraping device on the chain, and using flexible rubber and vertical plates to guide the material to change direction, the problem of chain blockage is solved, and the stable operation of the chain and the long-term reliability of the equipment are achieved.

CN224171830UActive Publication Date: 2026-04-28PANGANG GRP XICHANG STEEL & VANADIUM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PANGANG GRP XICHANG STEEL & VANADIUM CO LTD
Filing Date
2025-04-27
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

In existing technologies, chains are prone to clogging, tooth loss, or breakage when transporting hard granular materials, leading to chain-sprocket meshing failure.

Method used

A chain-driven flexible scraping device was designed, comprising a cylindrical steel pipe, a vertical plate, and a flexible rubber sheet, which is installed between the upper and lower loops of the chain. The flexible rubber sheet is in contact with the top surface of the chain, and the material is guided to change direction through the flexible rubber sheet. A counterweight is used to compensate for wear and ensure the cleaning effect.

Benefits of technology

It effectively removes hard particles between chain links on the top surface of the chain, preventing tooth breakage or snapping when the chain meshes with the sprocket, thus extending the service life and maintenance cycle of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a flexible chain scraping and sweeping device which is installed below a transmission belt and between an upper ring and a lower ring of a chain and comprises a cylindrical steel pipe, two vertical plates and flexible rubber, the two ends of the cylindrical steel pipe are fixedly connected to the two side walls of a box body of a feeder respectively, and the two vertical plates and the flexible rubber are arranged at intervals. The two vertical plates and the flexible rubber sheet are obliquely arranged relative to the vertical middle axial surface of the cylindrical steel pipe, the upper parts of the two vertical plates and the flexible rubber sheet are fixed with the cylindrical steel pipe at an included angle of 60 degrees, and the bottoms of the two vertical plates and the flexible rubber sheet are respectively in contact with the two chains; the vertical plates and the flexible rubber sheets comprise the vertical plates and the flexible rubber sheets, the upper portions of the flexible rubber sheets are tightly attached to the vertical plates, and the bottoms of the flexible rubber sheets are attached to the top faces of the chains. Accumulated materials such as hard particles between chain links on the top face of the chain can be removed, and the phenomena that the hard particles are accumulated between the chain links on the top face of the chain, and the chain is disengaged from teeth or broken when meshed with a chain wheel are avoided.
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Description

Technical Field

[0001] This utility model relates to the field of material conveying equipment technology, and in particular to a chain flexible scraping device. Background Technology

[0002] In areas where bulk raw materials are sampled, fully sealed conveyor belts are often used to transport material samples. However, material blockages frequently occur on these conveyor belts during transport.

[0003] Although an automatic cleaning device is installed inside the feeder housing, which uses gears to drive scrapers on the chain to automatically clean up accumulated material at the bottom of the feeder housing, some hard granular materials accumulate between the chain links on the top surface, causing the chain to disengage or break when meshing with the gears. Therefore, ensuring the stable operation of the scraper chain is essential. Utility Model Content

[0004] To address the aforementioned technical problems, a chain-driven flexible scraping device is provided. The technical means employed in this invention are as follows:

[0005] A chain flexible scraping device is installed below the transmission belt and between the upper and lower loops of the chain. It includes a cylindrical steel pipe, two vertical plates, and a flexible rubber sheet. The two ends of the cylindrical steel pipe are fixedly connected to the two side walls of the feeder housing. The two vertical plates and the flexible rubber sheet are spaced apart and are inclined relative to the vertical central axis of the cylindrical steel pipe. The upper parts of the two vertical plates and the flexible rubber sheet are fixed at a 60° angle to the cylindrical steel pipe, and the bottoms of the two vertical plates and the flexible rubber sheet are in contact with the two chains respectively.

[0006] The vertical plate and flexible rubber sheet include a vertical plate and a flexible rubber sheet, the upper part of which is tightly fitted to the vertical plate, and the bottom part of which is fitted to the top surface of the chain.

[0007] Furthermore, it also includes a counterweight, which is installed at one end of the cylindrical steel pipe and located outside the feeder housing.

[0008] Furthermore, the two vertical plates and the flexible rubber sheet are arranged symmetrically.

[0009] Furthermore, the bottom of the flexible rubber sheet forms a 60° angle with the top surface of the chain.

[0010] Furthermore, the cylindrical steel pipe and the sprocket are installed on the same horizontal line.

[0011] Furthermore, a rectangular mounting hole is provided in the middle of one side wall of the feeder housing, through which the chain flexible scraping device is installed.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. The flexible scraping device for chains provided by this utility model can remove hard particles and other accumulated materials between the chain links on the top surface of the chain, and avoid the phenomenon of tooth loss or breakage when the chain meshes with the sprocket due to the accumulation of hard particles between the chain links on the top surface of the chain.

[0014] 2. The chain flexible scraping device provided by this utility model has two vertical plates and the upper part of the flexible rubber sheet fixed at a 60° angle to the cylindrical steel pipe. The angle guides the material to change its running direction when it comes into contact with the flexible rubber sheet, thus extending the service life of the flexible rubber sheet.

[0015] 3. The chain flexible scraping device provided by this utility model has a counterweight that makes the vertical plate and flexible rubber sheet in close contact with the chain, which better ensures the cleaning effect and can also better compensate for the wear of the vertical plate and flexible rubber sheet during use, thus extending the maintenance cycle.

[0016] Based on the above reasons, this utility model can be widely promoted in the fields of material conveying. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the feeder before the chain-driven flexible scraper is installed.

[0019] Figure 2 This is a frontal cross-sectional view of the feeder before the chain-driven flexible scraper is installed.

[0020] Figure 3 This is a schematic diagram of the feeder after the chain flexible scraping device is installed in a specific embodiment of this utility model.

[0021] Figure 4 This is a front cross-sectional view of the feeder after the chain flexible scraping device is installed in a specific embodiment of this utility model.

[0022] Figure 5 This is a top sectional view of the feeder after the chain flexible scraping device is installed in a specific embodiment of this utility model.

[0023] Figure 6 This diagram illustrates the phenomenon of hard particles accumulating between chain links on the top surface of the feeder before the installation of the chain flexible scraping device, causing the chain to lose teeth or break when meshing with the sprocket.

[0024] Figure 7 This is a schematic diagram illustrating how the flexible scraping device removes hard particles and other accumulated material between chain links on the top surface of the chain after the feeder is equipped with the flexible scraping device in a specific embodiment of this utility model.

[0025] Figure 8 This is a schematic diagram showing the installation position and status of the vertical plate and flexible rubber sheet of the chain flexible scraping device in a specific embodiment of this utility model.

[0026] Figure 9 This is a schematic diagram showing the counterweight of the chain flexible scraping device and the installation position and state of the cylindrical steel pipe in a specific embodiment of this utility model.

[0027] In the diagram: 1. Feeder housing; 2. Mounting hole; 3. Chain flexible scraper device; 4. Counterweight; 5. Sprocket; 6. Chain; 7. Material; 8. Bottom scraper; 9. Cylindrical steel pipe; 10. Vertical plate and flexible rubber sheet; 11. Drive belt. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] This utility model provides a chain-driven flexible scraping device for use in bulk raw material sampling. The feeder includes a feeder housing 1, mounting holes 2, a chain-driven flexible scraping device 3, a counterweight 4, a sprocket 5, a chain 6, material 7, a bottom scraper 8, a cylindrical steel pipe 9, a vertical plate and flexible rubber sheet 10, and a drive belt 11. The chain-driven flexible scraping device 3 is installed below the drive belt 11, between the upper and lower loops of the chain 6.

[0030] The chain-driven flexible scraping device 3 of this utility model includes a cylindrical steel pipe 9, two vertical plates and a flexible rubber sheet 10, and a counterweight 4. The two ends of the cylindrical steel pipe 9 are fixedly connected to the two side walls of the feeder housing 1. The bottoms of the two vertical plates and the flexible rubber sheet 10 are in contact with two chains 6, and the upper parts of the two vertical plates and the flexible rubber sheet 10 are fixed at a 60° angle to the cylindrical steel pipe 9. This angle guides the material 7 to change its running direction when it comes into contact with the vertical plates and the flexible rubber sheet 10, thus extending the service life of the vertical plates and the flexible rubber sheet 10. The two vertical plates and the flexible rubber sheet 10 are inclined relative to the vertical central axis of the cylindrical steel pipe 9, and are symmetrically arranged, meaning that the two vertical plates and the flexible rubber sheet 10 and their extensions intersect symmetrically at a single point, forming a V-shape.

[0031] The vertical plate and flexible rubber sheet 10 include a vertical plate and a flexible rubber sheet. The upper part of the flexible rubber sheet is tightly fitted with the vertical plate, and the bottom of the flexible rubber sheet forms a 60° angle with the top surface of the chain 6. A rectangular mounting hole 2 is opened on one side (the middle of one side wall) of the feeder housing 1. The chain flexible scraping device 3 can pass through the mounting hole 2 and enter the feeder housing 1, and then be fixedly installed by the cylindrical steel pipe 9. The cylindrical steel pipe 9 and the sprocket 5 are installed on the same horizontal line (that is, the central axis of the cylindrical steel pipe 9 and the sprocket 5 are on the same horizontal plane), maintaining a sufficient safety distance. The bottom of the flexible rubber sheet is effectively fitted with the top surface of the chain 6. Two chains 6 are set alternately, and two vertical plates and flexible rubber sheets 10 are also set alternately. Each vertical plate and flexible rubber sheet 10 is connected to the corresponding chain 6. Two sprockets 5 are set on the same end. One end of each of the two chains 6 is connected to the two sprockets 5 on the same side, so that the central axis of the cylindrical steel pipe 9 and the two sprockets 5 are on the same horizontal plane.

[0032] The counterweight 4 is installed at one end of the cylindrical steel pipe 9 and located outside the feeder housing 1. The counterweight 4 ensures that the vertical plate and flexible rubber sheet 10 are in close contact with the chain 6, thus better ensuring the material cleaning effect. At the same time, it can better compensate for the wear of the vertical plate and flexible rubber sheet 10 during use and extend the maintenance cycle.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A chain flexible squeegee apparatus, characterized by, Installed below the transmission belt (11) and between the upper and lower rings of the chain (6), it includes: a cylindrical steel pipe (9) and two vertical plates and flexible rubber (10). The two ends of the cylindrical steel pipe (9) are respectively fixedly connected to the two side walls of the feeder box (1). The two vertical plates and flexible rubber (10) are spaced apart. The two vertical plates and flexible rubber (10) are inclined relative to the vertical central axis of the cylindrical steel pipe (9). The upper parts of the two vertical plates and flexible rubber (10) are fixed at a 60° angle with the cylindrical steel pipe (9). The bottoms of the two vertical plates and flexible rubber (10) are respectively in contact with the two chains (6). The vertical plate and flexible rubber sheet (10) include a vertical plate and a flexible rubber sheet. The upper part of the flexible rubber sheet is closely attached to the vertical plate, and the bottom of the flexible rubber sheet is attached to the top surface of the chain (6).

2. The chain flexible squeegee apparatus of claim 1, wherein, It also includes a counterweight (4), which is installed at one end of the cylindrical steel pipe (9) and located outside the feeder housing (1).

3. The chain flexible squeegee apparatus of claim 1, wherein, The two vertical boards and the flexible rubber sheet (10) are arranged symmetrically.

4. The chain flexible scraping device according to claim 1, characterized in that, The bottom of the flexible rubber sheet forms a 60° angle with the top surface of the chain (6).

5. The chain flexible scraping device according to claim 1, characterized in that, The cylindrical steel pipe (9) and the sprocket (5) are installed on the same horizontal line.

6. The chain flexible scraping device according to claim 1, characterized in that, A rectangular mounting hole (2) is opened in the middle of one side wall of the feeder housing (1), and the chain flexible scraping device is installed through the mounting hole (2).