Belt conveyor with self-cleaning function

Abstract

The invention relates to the technical field of conveyors, in particular to a belt conveyor with a self-cleaning function, which is characterized in that through matched arrangement of a belt suction scraping row and a self-guiding strip, when a conveyor belt is cleaned, after the belt suction scraping row is electrified, a magnetic suction force can be generated on the self-guiding strip, and then the conveyor belt is pushed to be in an inclined state from a horizontal state; on the other hand, the inclined part of the conveying belt is propped against and straightened by the scraping roller and the belt bearing roller, so that the reverse deformation of the conveying belt is small when the scraping roller scrapes the impurities on the conveying belt, and compared with the prior art, the scraping effect is greatly improved. The situation that impurities are difficult to remove due to reverse deformation of the conveying belt is not prone to occurring, then the self-cleaning efficiency is effectively improved, meanwhile, the pressure sensor is matched, the stress condition of the conveying belt during self-cleaning can be monitored in real time, and the situation that the conveying belt is damaged due to too large stress is effectively avoided.

Description

Technical Field

[0001] The present invention relates to a belt conveyor with a self-cleaning function, in particular to a belt conveyor with a self-cleaning function applied in the technical field of conveyors. Background Art

[0002] Belt conveyor is the main mode of bulk material transportation at present. Belt conveyor is the most important bulk material transportation and loading and unloading equipment. It can be widely used in mining, metallurgy, building materials, chemical industry, electric power, food processing and other industrial fields. In coal mines, metal mines, steel enterprises, ports, cement plants and other places, belt conveyors can be seen in large numbers. Transport machinery can not only complete the transportation of bulk materials, but also transport piece materials. However, depending on the place of use, working environment and type of conveyed materials, there will be great differences in its design and application.

[0003] When the conveyor is transporting bulk materials, some dirt and impurities often adhere to the surface of the conveyor belt. The general cleaning method is to stop the conveyor and then scrape and clean it manually, which is not only time-consuming and labor-intensive, but also easily affects the transportation of materials and the transportation efficiency. When scraping impurities, the conveyor belt is subjected to force and is prone to deform and shrink inward along the force direction, resulting in a significant reduction in the strength between the scraper and the conveyor belt, affecting the impurity scraping effect.

[0004] Therefore, a conveyor is proposed which can be self-cleaned efficiently without stopping the machine. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the cleaning of the existing conveyor requires stopping the machine for cleaning, which affects the material conveying and conveying efficiency.

[0006] To solve the above problems, the present invention provides a belt conveyor with self-cleaning function, including a bracket platform, a conveying assembly is installed between two cross beams of the bracket platform, the conveying assembly includes two transmission rollers rotatably installed between the ends of the two cross beams, a conveyor belt connected to the outside of the two transmission rollers, and a motor fixedly connected to the end of one of the transmission rollers, an outer support rod is connected to the bottom of the motor, the middle part of the two cross beams of the bracket platform are fixedly connected to guide columns, the end surfaces of the two guide columns close to each other are both chiseled with vertical grooves, a self-guide strip is connected between the two vertical grooves, a bottom plate is fixedly connected between the left and right bottom parts of the bracket platform, the upper end of the bottom plate is connected to a suction belt scraper row through two inner support rods, the suction belt scraper row corresponds to the self-guide strip, the suction belt scraper row includes a scraping platform, a belt-bearing roller connected to the scraping platform through two electric push rods, and a scraping roller rotatably installed on the scraping platform through two double-rod brackets, and the belt-bearing roller is located directly below the self-guide strip.

[0007] In the above-mentioned self-cleaning conveyor, through the coordinated arrangement of the suction belt scraper row and the self-guide strip, when the conveyor belt is cleaned, the part of the conveyor belt that contacts the scraper roller can be changed from horizontal to inclined, so that the scraper roller is in angled contact when scraping impurities on the conveyor belt, which greatly improves the scraping effect compared to direct scraping.

[0008] As a further improvement of the present application, the axis height of the belt-bearing roller is lower than the axis height of the scraping roller, and the angle between the line between the two axes and the horizontal plane is 30-60°.

[0009] As a further improvement of the present application, the self-guide strip includes a belt-holding roller whose two ends are respectively slidably connected to the two vertical grooves, a tension spring is fixedly connected between the two upper ends of the belt-holding roller and the inner top ends of the corresponding vertical grooves, and a compression spring is fixedly connected between the two lower ends of the belt-holding roller and the inner bottom ends of the corresponding vertical grooves. The belt-holding roller is located on the inner side of the conveyor belt, and the belt-holding roller does not contact the conveyor belt.

[0010] As a further improvement of the present application, a plurality of grooves distributed in a circular array are bored at the outer end of the scraper roller, a plurality of triangular material strips corresponding to the plurality of grooves are arranged outside the scraper roller, a strip is fixedly connected to the bottom of the triangular material strip, and the strip is engaged with the groove.

[0011] As a further improvement of the present application, the belt holding roller is made of ferromagnetic material, an electromagnet is embedded inside the belt bearing roller, and an arc groove is cut at the upper end of the belt bearing roller, and the arc groove matches the belt holding roller.

[0012] As another improvement of the present application, a pressure sensor is installed at the bottom end of the card slot, and the pressure sensor is in contact with the card strip.

[0013] As another improvement of the present application, two self-guiding strips are provided, and the two self-guiding strips are respectively located on both sides of the scraper roller, and two belt-carrying rollers are also provided corresponding to the self-guiding strips.

[0014] In summary, in the above-mentioned self-cleaning conveyor, through the coordinated arrangement of the suction belt scraper row and the self-guide strip, when the conveyor belt is cleaned, after the suction belt scraper row is energized, it can generate magnetic attraction on the self-guide strip, thereby pushing the conveyor belt from a horizontal state to an inclined state. On the one hand, the scraper roller is in angled contact when scraping impurities on the conveyor belt, which greatly improves the scraping effect compared to direct scraping. On the other hand, the inclined part of the conveyor belt is straightened by the scraper roller and the supporting roller, so that when the scraper roller scrapes impurities on the conveyor belt, the reverse deformation of the conveyor belt is smaller. Compared with the prior art, it is less likely that impurities will be difficult to remove due to the reverse deformation of the conveyor belt, thereby effectively improving the self-cleaning efficiency. At the same time, in conjunction with the pressure sensor, the force condition of the conveyor belt during self-cleaning can be monitored in real time, effectively avoiding damage due to excessive force. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of the first embodiment of the present application;

[0016] Figure 2 This is a three-dimensional diagram after the conveyor belt is removed in the first embodiment of the present application;

[0017] Figure 3 A three-dimensional diagram of a suction belt scraper row and a self-guiding strip according to a first embodiment of the present application;

[0018] Figure 4 A three-dimensional diagram of a suction belt scraper row according to a first embodiment of the present application;

[0019] Figure 5 A perspective view of an end portion of a self-guiding strip according to a first embodiment of the present application;

[0020] Figure 6 A three-dimensional diagram of a scraper roller according to a first embodiment of the present application;

[0021] Figure 7 This is a cross-sectional schematic diagram of a scraper roller according to a first embodiment of the present application;

[0022] Figure 8 This is a schematic diagram of the process of cleaning the conveyor belt according to the first embodiment of the present application;

[0023] Fig. 9 This is a schematic diagram of cleaning the conveyor belt in the second embodiment of the present application.

[0024] Description of the numbers in the figure:

[0025] 101 support platform, 102 bottom plate, 103 inner support rod, 104 outer support rod, 31 transmission roller, 32 motor, 33 conveyor belt, 4 guide column, 401 vertical slot, 402 tension spring, 403 compression spring, 5 scraper platform, 61 belt pressing roller, 62 belt bearing roller, 601 electric push rod, 701 double rod support, 7 scraper roller, 71 triangular material strip, 72 slot, 73 strip, 74 pressure sensor. DETAILED DESCRIPTION

[0026] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0027] The first implementation method:

[0028] Figure 1-2The invention discloses a belt conveyor with a self-cleaning function, comprising a support platform 101, wherein a conveying assembly is installed between two cross beams of the support platform 101, and the conveying assembly comprises two driving rollers 31 respectively rotatably installed between the ends of the two cross beams, a conveying belt 33 connected to the outside of the two driving rollers 31, and a motor 32 fixedly connected to the end of one of the driving rollers 31, an outer support rod 104 is connected to the bottom of the motor 32, and a guide column 4 is fixedly connected to the middle of the two cross beams of the support platform 101, and the end surfaces of the two guide columns 4 close to each other are both chiseled with vertical grooves 401, and a self-guiding strip is connected between the two vertical grooves 401, and a bottom plate 102 is fixedly connected between the left and right bottoms of the support platform 101, and a suction belt scraper row is connected to the upper end of the bottom plate 102 through two inner support rods 103. When the conveying belt 33 moves driven by the motor 32, the material placed thereon can be conveyed. During the conveying process, since the lower surface of the conveying belt 33 is close to the scraper roller 7, it will be continuously scraped by the scraper roller 7, thereby achieving a preliminary self-cleaning effect as the material is conveyed.

[0029] like Figure 3-4 The suction belt scraper row corresponds to the self-guide strip. The suction belt scraper row includes a scraper platform 5, a belt-bearing roller 62 connected to the scraper platform 5 through two electric push rods 601, and a scraper roller 7 rotatably installed on the scraper platform 5 through two double-rod brackets 701. The belt-bearing roller 62 is located directly below the self-guide strip. When further deep cleaning is required, the suction belt scraper row can be controlled to be energized, and then the suction belt pressing roller 61 moves downward and pushes the conveyor belt 33, thereby making the conveyor belt 33 between the scraper roller 7 and the belt-bearing roller 62 inclined. At this time, the scraper roller 7 and the conveyor belt 33 are in an inclined conflicting state. As the conveyor belt 33 moves, the scraper roller 7 and the conveyor belt 33 can be deeply scraped, thereby effectively improving the debris removal effect.

[0030] The height of the axis of the belt-carrying roller 62 is lower than that of the axis of the scraping roller 7, and the angle between the line between the two axes and the horizontal plane is 30-60°, so that the conveyor belt 33 between the two is inclined.

[0031] like Figure 5The self-guiding strip includes a belt holding roller 61 whose two ends are respectively connected to the two vertical grooves 401 for sliding. The belt holding roller 61 is made of ferromagnetic material. An electromagnet is embedded in the belt bearing roller 62, and an arc groove is cut on the upper end of the belt bearing roller 62. The arc groove matches the belt holding roller 61. When the electromagnet is energized, an adsorption force is generated on the belt holding roller 61. The belt holding roller 61 drives the conveyor belt 33 to approach the belt bearing roller 62, so that the belt holding roller 61 is embedded in the belt bearing roller 62, so that the conveyor belt 33 can be locally and stably in an inclined state during deep self-cleaning. The two upper ends of the belt holding roller 61 are fixedly connected to the inner top ends of the corresponding vertical grooves 401. The tension spring 402 and the compression spring 403 are fixedly connected between the two lower ends of the belt holding roller 61 and the inner bottom ends of the corresponding vertical grooves 401. The belt holding roller 61 is located on the inner side of the conveyor belt 33, and the belt holding roller 61 does not contact the conveyor belt 33. The tension spring 402 and the compression spring 403 are both used for limiting and assisting the resetting of the belt holding roller 61. After the surface impurities of the conveyor belt 33 are scraped at a deeper level, the electromagnet is controlled to be powered off. At this time, the belt holding roller 61 loses its magnetic attraction and is quickly reset by the tension spring 402 and the compression spring 403, thereby separating from the conveyor belt 33 and not easily affecting the conveying of materials by the conveyor belt 33.

[0032] It is worth noting that the tension spring 402 and the compression spring 403 do not have to be all set, and only any one of them may be set. In specific implementation, they can be selectively set according to actual needs.

[0033] like Figure 6 The outer end of the scraper roller 7 is provided with a plurality of grooves 72 distributed in a ring array, and the scraper roller 7 is provided with a plurality of triangular material strips 71 corresponding to the plurality of grooves 72 respectively. A clamping strip 73 is fixedly connected to the bottom of the triangular material strip 71, and the clamping strip 73 is clamped with the groove 72.

[0034] It is worth noting that the scraper roller 7 is connected to the double-rod bracket 701 through an electric rotating shaft, so that the scraper roller 7 can be electrically controlled to rotate. When cleaning impurities on the surface of the conveyor belt 33, the scraper roller 7 can be controlled to rotate at regular intervals to make different triangular material strips 71 directly contact with the conveyor belt 33 and scrape off impurities, effectively avoiding the same triangular material strip 71 from being in frictional contact with the conveyor belt 33 for a long time and overheating, thereby protecting the triangular material strip 71 from aging due to long-term heating.

[0035] like Figure 7A pressure sensor 74 is installed at the bottom end of the card slot 72, and the pressure sensor 74 is in contact with the card strip 73. When scraping the surface of the conveyor belt 33, after the belt pressing roller 61 is embedded in the belt bearing roller 62 through the conveyor belt 33, the height difference between the belt bearing roller 62 and the scraper roller 7 can be controlled by the electric push rod 601. In this process, the conveyor belt 33 can be subjected to different deformation forces under different height differences, so that different force data are displayed on the pressure sensor 74. The force condition of the conveyor belt 33 can be monitored through the data, which can effectively avoid the situation where the conveyor belt 33 is damaged due to excessive force, and effectively protect the conveyor belt 33.

[0036] In summary, if Figure 8 By coordinating the suction belt scraper row and the self-guiding strip, when the conveyor belt 33 is cleaned, the suction belt scraper row can generate a magnetic attraction force on the self-guiding strip after being energized, thereby pushing the conveyor belt 33 from a horizontal state to an inclined state. On the one hand, the scraper roller 7 is in an angled contact when scraping impurities on the conveyor belt 33, which greatly improves the scraping effect compared to direct scraping. On the other hand, the inclined part of the conveyor belt 33 is straightened by the scraper roller 7 and the belt-bearing roller 62, so that when the scraper roller 7 scrapes impurities from the conveyor belt 33, the reverse deformation of the conveyor belt 33 is smaller. Compared with the prior art, it is less likely that impurities are difficult to remove due to the reverse deformation of the conveyor belt 33, thereby effectively improving the self-cleaning efficiency. At the same time, in conjunction with the pressure sensor 74, the force condition of the conveyor belt 33 during self-cleaning can be monitored in real time, effectively avoiding damage due to excessive force.

[0037] The second implementation method:

[0038] This embodiment makes the following changes on the basis of the first embodiment, and the rest of the parts remain the same as the first embodiment.

[0039] Fig. 9 As shown, two self-guide strips are provided, and the two self-guide strips are respectively located on both sides of the scraper roller 7, and two belt-bearing rollers 62 are also provided corresponding to the self-guide strips. When the conveyor belt 33 is cleaned, the self-guide strips on both sides push the conveyor belt 33 downward, so that the scraper roller 7 directly contacts the conveyor belt 33, and the cross-section presents an inverted V shape with the contact point as the top angle, so that the conveyor belt 33 fully contacts the scraper roller 7. At this time, when the conveyor belt 33 moves normally, its surface can be fully scraped by the scraper roller 7. Compared with the first embodiment, the scraping effect of impurities on the surface of the conveyor belt 33 is better and the efficiency is better.

[0040] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A belt conveyor with self-cleaning function, characterized in that: The invention comprises a support platform (101), wherein a conveying assembly is installed between two cross beams of the support platform (101), wherein the conveying assembly comprises two transmission rollers (31) respectively rotatably installed between the ends of the two cross beams, a conveyor belt (33) connected to the outside of the two transmission rollers (31), and a motor (32) fixedly connected to the end of one of the transmission rollers (31), wherein the bottom of the motor (32) is connected to an external support rod (104), wherein the middle parts of the two cross beams of the support platform (101) are fixedly connected to guide columns (4), and the end surfaces of the two guide columns (4) close to each other are both provided with vertical grooves (401), A self-guiding strip is connected between the two vertical grooves (401); a bottom plate (102) is fixedly connected between the left and right bottoms of the support platform (101); the upper end of the bottom plate (102) is connected to a suction belt scraper row through two inner support rods (103); the suction belt scraper row corresponds to the self-guiding strip; the suction belt scraper row comprises a scraper platform (5), a belt-bearing roller (62) connected to the scraper platform (5) through two electric push rods (601), and a scraper roller (7) rotatably mounted on the scraper platform (5) through two double-rod brackets (701); the belt-bearing roller (62) is located directly below the self-guiding strip; The self-guiding strip comprises a belt holding roller (61) whose two ends are respectively slidably connected to two vertical grooves (401); a tension spring (402) is fixedly connected between the two upper ends of the belt holding roller (61) and the inner top ends of the corresponding vertical grooves (401); a compression spring (403) is fixedly connected between the two lower ends of the belt holding roller (61) and the inner bottom ends of the corresponding vertical grooves (401); the belt holding roller (61) is located on the inner side of the conveyor belt (33), and the belt holding roller (61) does not contact the conveyor belt (33).

2. A belt conveyor with self-cleaning function according to claim 1, characterized in that: The height of the axis of the belt-bearing roller (62) is lower than the height of the axis of the scraping roller (7), and the angle between the line connecting the two axes and the horizontal plane is 30-60°.

3. The belt conveyor with self-cleaning function according to claim 1, characterized in that: The outer end of the scraper roller (7) is provided with a plurality of slots (72) distributed in a ring array, and the scraper roller (7) is provided with a plurality of triangular material strips (71) respectively corresponding to the plurality of slots (72). The bottom of the triangular material strips (71) is fixedly connected with a clip strip (73), and the clip strip (73) is clipped with the slots (72).

4. The belt conveyor with self-cleaning function according to claim 1, characterized in that: The belt holding roller (61) is made of ferromagnetic material, an electromagnet is embedded inside the belt bearing roller (62), and an arc groove is cut on the upper end of the belt bearing roller (62), and the arc groove matches the belt holding roller (61).

5. The belt conveyor with self-cleaning function according to claim 3, characterized in that: A pressure sensor (74) is installed at the bottom end of the card slot (72), and the pressure sensor (74) is in contact with the card strip (73).

6. The belt conveyor with self-cleaning function according to claim 1, characterized in that: Two self-guiding strips are provided, and the two self-guiding strips are respectively located on both sides of the scraper roller (7), and two belt-carrying rollers (62) are also provided corresponding to the self-guiding strips.

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