Belt conveyor head sweeper

Abstract

The utility model provides a belt conveyor head sweeper, and relates to the technical field of belt conveyor sweeping. The belt conveyor head sweeper comprises a first-stage sweeping assembly and a second-stage sweeping assembly, the first-stage sweeping assembly is provided with a scraping part, the scraping part is arranged on the side, away from the receiving end, of the discharging end, a scraping gap allowing a belt to penetrate through is formed between the scraping part and the second roller, and the scraping part abuts against the conveying surface of the belt and is used for scraping materials on the conveying surface of the belt; and the second-stage sweeping assembly is provided with a sweeping part, the sweeping part is rotationally arranged below the second roller, the rotating direction of the sweeping part is the same as that of the second roller, and the sweeping part is in rolling contact with the conveying surface of the belt and used for sweeping residual materials on the conveying surface of the belt scraped by the scraping part. After the belt conveyor is subjected to double cleaning, 98%-100% of materials remaining on the conveying surface of the belt are cleaned up, and the cleaning effect is obviously improved.

Description

Technical Field

[0001] This application relates to the field of belt conveyor cleaning technology, and in particular to a belt conveyor head cleaner. Background Technology

[0002] Concrete mixing plants typically use belt conveyors to transport materials. A belt conveyor mainly consists of a frame, drive and driven rollers rotatably mounted at both ends of the frame, and a belt tensioned on the drive and driven rollers. The drive rollers are driven by a motor, continuously conveying materials such as sand and gravel aggregates placed on the belt to the hopper. During actual conveying, gravel and fine sand may stick to the belt and flow backwards, easily causing damage and affecting normal operation. Therefore, it is necessary to clean the head of the belt conveyor (the side closest to the hopper, i.e., the material discharge end).

[0003] In existing technologies, scrapers made of rubber or polyester are often installed at the head of the conveyor belt to clean up the stuck material. Although this method can play a certain role in cleaning, the cleaning effect is not good. Utility Model Content

[0004] The purpose of this application is to address the above problems by providing a belt conveyor head cleaner to improve the cleaning effect of the belt conveyor.

[0005] This application provides a belt conveyor head cleaner. The belt conveyor has a receiving end and a discharge end. The belt conveyor is used to transport material from the receiving end to the discharge end. The belt conveyor includes a frame. A first roller is provided on the frame near the receiving end, and a second roller is provided on the frame near the discharge end. A belt is tensioned on the first roller and the second roller. The cleaner includes:

[0006] A primary cleaning assembly has a scraping section, which is located on the side of the material drop end away from the material receiving end and forms a scraping gap between the scraping section and the second roller, allowing the belt to pass through. The scraping section abuts against the conveying surface of the belt to scrape off the material on the conveying surface of the belt.

[0007] A secondary cleaning assembly includes a cleaning section rotatably disposed below the second roller. The cleaning section rotates in the same direction as the second roller. The cleaning section makes rolling contact with the conveyor surface of the belt to clean the material remaining on the conveyor surface of the belt after it has been scraped away by the scraping section.

[0008] According to the technical solutions provided in certain embodiments of this application, the primary cleaning component includes a fixed frame and a scraper mounted on the fixed frame. The fixed frame is mounted on the frame, and the scraper is the scraping part, and the scraper is made of alloy material.

[0009] According to the technical solutions provided in certain embodiments of this application, the contact surface between the scraper and the belt conveyor surface is a first contact surface, the first contact surface is an arc-shaped contact surface, and the arc of the first contact surface is the same as the arc of the second roller.

[0010] According to the technical solutions provided in certain embodiments of this application, the scraper includes a plurality of sub-scrapers arranged along a first direction, the first direction being parallel to the central axis of the second roller, and the sub-scrapers are detachably connected to the fixing frame.

[0011] According to the technical solutions provided in certain embodiments of this application, all the sub-scrapers have the same structure.

[0012] According to the technical solutions provided in some embodiments of this application, the fixed frame is connected to a rotating shaft extending along the first direction, and the two ends of the rotating shaft are respectively rotatably connected to the frame; the primary cleaning assembly further includes a pair of spring assemblies disposed at both ends of the rotating shaft, the spring assemblies connecting the rotating shaft and the frame, and the spring assemblies being used to apply an elastic force to the rotating shaft so that the scraping part is tightly attached to the belt conveyor surface.

[0013] According to the technical solutions provided in certain embodiments of this application, the spring assembly includes a sleeve, which is fixedly connected to the end of the rotating shaft. The sleeve has a through hole. The spring assembly also includes a connecting rod fixedly connected to the frame. The connecting rod extends along a second direction, which is perpendicular to the first direction. The connecting rod movably passes through the through hole. A spring is also movably sleeved on the connecting rod. A clamping member is provided at the free end of the connecting rod. The spring is located between the sleeve and the clamping member and is in a stored state.

[0014] According to the technical solutions provided in certain embodiments of this application, the secondary cleaning component includes a drive motor, which is mounted on the frame. The output shaft of the drive motor is connected to a roller brush, which is the cleaning part.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: This application provides a belt conveyor head cleaner, which includes a primary cleaning assembly with a scraping section located on the side of the discharge end away from the receiving end, forming a scraping gap between the scraping section and a second roller that allows the belt to pass through. The scraping section abuts against the conveying surface of the belt. The cleaner also includes a secondary cleaning assembly with a cleaning section rotatably positioned below the second roller, rotating in the same direction as the second roller, and making rolling contact with the conveying surface of the belt. The belt conveyor transports material from the receiving end to the discharge end. Most of the material falls from the belt into the guide hopper due to gravity, but some material remains on the conveying surface of the belt. After the material is discharged, the belt first passes through the primary cleaning component during its rotation. The scraping section of the primary cleaning component can scrape away about 90% of the gravel and fine sand remaining on the belt. Then the belt passes through the secondary cleaning component. The cleaning section of the secondary cleaning component can sweep away the remaining gravel and fine sand adhering to the belt. The cleaning section rotates in the same direction as the second roller and rolls in contact with the belt conveyor surface, increasing the cleaning area and cleaning force. Therefore, after double cleaning, 98%-100% of the material remaining on the belt surface is cleaned up, significantly improving the cleaning effect. In addition, both the primary and secondary cleaning components are placed near the guide hopper at the discharge end, so the material swept away by both cleanings can fall into the guide hopper, avoiding material waste.

[0016] It should be understood that the descriptions of technical features, technical solutions, beneficial effects, or similar language in this application do not imply that all features and advantages can be achieved in any single embodiment. Rather, it is understood that the description of a feature or beneficial effect means that a specific technical feature, technical solution, or beneficial effect is included in at least one embodiment. Therefore, the descriptions of technical features, technical solutions, or beneficial effects in this specification do not necessarily refer to the same embodiment. Furthermore, the technical features, technical solutions, and beneficial effects described in this embodiment can be combined in any suitable manner. Those skilled in the art will understand that embodiments can be implemented without one or more specific technical features, technical solutions, or beneficial effects of a particular embodiment. In other embodiments, additional technical features and beneficial effects may be identified in specific embodiments that do not embody all embodiments. Attached Figure Description

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

[0018] Figure 1 This is a side view of a belt conveyor head cleaner provided in an embodiment of this application;

[0019] Figure 2 A front view of a belt conveyor head cleaner provided in an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the structure of a spring assembly of a belt conveyor head cleaner provided in an embodiment of this application.

[0021] The text labels in the image represent:

[0022] 1. Second roller; 2. Belt; 3. Frame; 4. Scraper; 5. Spring assembly; 6. Fixing seat; 7. Roller brush; 8. Drive motor; 9. Fixing frame; 10. Rotating shaft; 11. Sleeve; 12. Fixing rod; 13. Connecting rod; 14. Spring; 15. Clamping component; 16. Sleeve. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The descriptions in this section are merely illustrative and explanatory, and should not be construed as limiting the scope of protection of this application. Specifically, the described embodiments are only some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort should fall within the scope of protection of this application.

[0024] It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0025] This embodiment provides a belt conveyor head cleaner. The belt conveyor has a receiving end and a discharge end. The belt conveyor is used to transport materials from the receiving end to the discharge end. The belt conveyor includes a frame 3. A first roller is provided on the side of the frame 3 near the receiving end, and a second roller 1 is provided on the side near the discharge end. A belt 2 is tensioned on the first roller and the second roller 1. The cleaner includes:

[0026] The primary cleaning assembly has a scraping section, which is located on the side of the material drop end away from the material receiving end, and forms a scraping gap between the scraping section and the second roller 1, allowing the belt 2 to pass through. The scraping section abuts against the conveying surface of the belt 2 to scrape off the material on the conveying surface of the belt 2.

[0027] The secondary cleaning assembly has a cleaning section, which is rotatably positioned below the second roller 1. The cleaning section rotates in the same direction as the second roller 1. The cleaning section makes rolling contact with the conveying surface of the belt 2 and is used to clean the material remaining on the conveying surface of the belt 2 after it has been scraped off by the scraping section.

[0028] Please refer to Figure 1 Both the primary and secondary cleaning components are fixedly connected to the frame 3. A guide hopper is placed at the material discharge end of the belt conveyor. The belt conveyor will transport the material from the receiving end to the discharge end. Most of the material will fall from the belt 2 into the guide hopper due to gravity, but some material will still remain on the conveying surface of the belt 2. After the material is discharged, the belt 2 rotates and first passes through the primary cleaning component. The scraping part of the primary cleaning component can scrape away about 90% of the gravel and fine sand remaining on the belt. Then the belt passes through the secondary cleaning component. The cleaning part of the secondary cleaning component can sweep away the residual gravel and fine sand adhering to the belt. The cleaning part rotates in the same direction as the second roller 1 and rolls in contact with the conveying surface of the belt 2, increasing the cleaning area and cleaning force. Therefore, after double cleaning, 98%-100% of the material remaining on the belt surface will be cleaned, which significantly improves the cleaning effect. Moreover, both the primary and secondary cleaning components are placed close to the guide hopper at the discharge end, so the material swept away by both cleanings can fall into the guide hopper, avoiding material waste.

[0029] In a preferred embodiment, the primary cleaning component includes a fixed frame 9 and a scraper 4 mounted on the fixed frame 9. The fixed frame 9 is mounted on the frame 3, and the scraper 4 is a scraping part made of alloy material.

[0030] like Figure 2 As shown, the fixing frame 9 is located on the side of the material dropping end away from the material receiving end. The fixing frame 9 includes a strip-shaped long plate extending along the first direction. Multiple short support rods are vertically connected above the strip-shaped long plate. The free ends of the short support rods are fixedly connected to the scraper 4 by bolts. The scraper 4 is made of a long strip-shaped alloy material, which has high strength, wear resistance, corrosion resistance, and long service life. This avoids frequent manual replacement of parts and also improves the overall operating efficiency of the equipment.

[0031] In a preferred embodiment, the contact surface between the scraper 4 and the conveying surface of the belt 2 is a first contact surface, which is an arc-shaped contact surface, and the curvature of the first contact surface is the same as the curvature of the second roller 1.

[0032] The arc-shaped contact surface fits more closely with the belt 2 tensioned on the surface of the second roller 1, and also increases the contact area between the scraper 4 and the belt 2, thereby reducing material leakage and backflow and improving the cleaning effect.

[0033] In a preferred embodiment, the scraper 4 includes a plurality of sub-scrapers arranged along a first direction, which is parallel to the central axis of the second roller 1. The sub-scrapers are detachably connected to the fixing frame 9, and all sub-scrapers have the same structure.

[0034] Each sub-scraper is connected to a corresponding short support rod on the fixing frame 9 by bolts. The end of the short support rod away from the sub-scraper is connected to the strip plate by bolts. When the sub-scraper at a certain position is severely worn, a new sub-scraper can be quickly replaced. Moreover, the sub-scrapers have the same shape, length and other structures, which improves the efficiency of spare parts procurement.

[0035] In a preferred embodiment, the fixed frame 9 is connected to a rotating shaft 10 extending in a first direction, and the two ends of the rotating shaft 10 are rotatably connected to the frame 3 respectively; the primary cleaning assembly also includes a pair of spring assemblies 5 disposed at both ends of the rotating shaft 10, the spring assemblies 5 connecting the rotating shaft 10 and the frame 3, and the spring assemblies 5 are used to apply an elastic force to the rotating shaft 10 so that the scraping part is tightly attached to the conveying surface of the belt 2.

[0036] like Figure 2 As shown, the strip-shaped plate of the fixed frame 9 is fixedly connected to the rotating shaft 10 by bolts. A fixed seat 6 is fixedly connected to the side of the frame 3. The fixed seat 6 is, for example, a thin plate. The surface of the thin plate is perpendicular to the first direction. The fixed seat 6 is provided with a reserved hole and a fixing rod 12. The through direction of the reserved hole is parallel to the first direction. The extension direction of the fixing rod 12 is parallel to the extension direction of the rotating shaft 10. The fixing rod 12 is located on the side above the rotating shaft 10, not directly above the rotating shaft 10. Specifically, it is located on the side above the rotating shaft 10 that is relatively far away from the guide hopper. The two ends of the rotating shaft 10 are rotatably connected to the frame 3 through the corresponding reserved holes. The spring assembly 5 connects the rotating shaft 10 and the frame 3 through the fixing rod 12. The scraper 4 and the rotating shaft 10 are fixedly connected together by the fixed frame 9. When the rotating shaft 10 is rotated by the force of the spring assembly 5, it will indirectly drive the scraper 4 to move, so that the scraper 4 and the conveying surface of the belt 2 are always in close contact.

[0037] In a preferred embodiment, the spring assembly 5 includes a sleeve 11, which is fixedly connected to the end of the rotating shaft 10. The sleeve 11 has a through hole. The spring assembly 5 also includes a connecting rod 13 fixedly connected to the frame 3. The connecting rod 13 extends along a second direction, which is perpendicular to the first direction. The connecting rod 13 movably passes through the through hole. A spring 14 is also movably sleeved on the connecting rod 13. A clamping member 15 is provided at the free end of the connecting rod 13. The spring 14 is located between the sleeve 11 and the clamping member 15 and is in a stored state.

[0038] Please refer to further information. Figure 3 The ferrule 11 includes two symmetrically arranged snap-fit ​​pieces. Each snap-fit ​​piece has an elliptical through-hole at a corresponding position on its upper part. The lower part of each snap-fit ​​piece protrudes outwards in a semi-annular groove away from the other snap-fit ​​piece. The two snap-fit ​​pieces are fastened together. When fastened together, the two elliptical through-holes align, and the two semi-annular grooves together form a channel through which the rotating shaft can pass. The two snap-fit ​​pieces are fixedly fitted onto the rotating shaft 10 by bolts. The second direction is perpendicular to the rotating shaft. One end of the connecting rod 13 is provided with a sleeve 16. The length direction of the sleeve 16 is perpendicular to the length direction of the connecting rod 13. The sleeve 16 is fixedly fitted onto the fixing rod 12, thereby fixing the connecting rod 13 onto the frame 3. The height of the end of the connecting rod 13 connected to the sleeve 16 is lower than the height of its free end. The free end of the connecting rod 13 is threaded, and the clamping element 15 is a nut. The connecting rod 13 first passes through the through-hole on the ferrule 11, and then a spring 14 is fitted onto it. Finally, the nut is used to tighten the spring 14. The extension direction of the sleeve 11 forms an acute angle with the vertical direction. The upper part of the sleeve 11 abuts against the sleeve 16. The spring 14 is located between the sleeve 11 and the nut. Since the spring 14 is compressed and in a rebounding state, the rebound force of the spring 14 will act on the upper part of the sleeve 11, causing the upper part of the sleeve 11 to have a tendency to rotate towards the sleeve 16. This causes the lower part of the sleeve 11 to drive the rotating shaft 10 fixedly connected to it to have a corresponding rotation tendency. This causes the scraper 4 connected to the rotating shaft 10 to have a tendency to rotate towards the conveying surface of the belt 2, so that the scraper 4 can fit tightly against the conveying surface of the belt 2. With the increase of use, the scraper 4 may wear out. The rebound force of the spring 14 will drive the sleeve 11 to rotate, causing the rotating shaft 10 to rotate with the scraper 4 towards the side closer to the second roller 1, so that the scraper 4 is always pressed against the conveying surface of the belt 2.

[0039] In a preferred embodiment, the secondary cleaning assembly includes a drive motor 8, which is mounted on the frame 3. The output shaft of the drive motor 8 is connected to a roller brush 7, which is the cleaning part.

[0040] like Figure 1 As shown, the drive motor 8 is located below the second roller 1 and on one side of the frame 3. The roller brush 7 has a central shaft and bristles arranged circumferentially around the central shaft. The output shaft of the drive motor 8 is fixedly connected to the central shaft of the roller brush 7, thereby driving the rotation of the roller brush 7 to sweep the residual gravel and fine sand stuck on the belt 2 into the guide hopper, thus achieving efficient cleaning operation. The two ends of the central shaft of the roller brush 7 are rotatably connected to the frame 3 through bearings.

[0041] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A belt conveyor head cleaner, the belt conveyor having a receiving end and a discharge end, the belt conveyor being used to convey material from the receiving end to the discharge end, the belt conveyor including a frame (3), a first roller being provided on the side of the frame (3) near the receiving end, and a second roller (1) being provided on the side near the discharge end, a belt (2) being tensioned on the first roller and the second roller (1), characterized in that, The sweeper includes: A primary cleaning assembly has a scraping part, which is located on the side of the material drop end away from the material receiving end and forms a scraping gap between the scraping part and the second roller (1) for the belt (2) to pass through. The scraping part abuts against the conveying surface of the belt (2) to scrape off the material on the conveying surface of the belt (2). A secondary cleaning assembly has a cleaning part, which is rotatably disposed below the second roller (1). The rotation direction of the cleaning part is the same as that of the second roller (1). The cleaning part rolls into contact with the conveying surface of the belt (2) and is used to clean the material remaining on the conveying surface of the belt (2) after being scraped by the scraping part.

2. The belt conveyor head cleaner according to claim 1, characterized in that, The primary cleaning component includes a fixed frame (9) and a scraper (4) mounted on the fixed frame (9). The fixed frame (9) is mounted on the frame (3). The scraper (4) is the scraping part and is made of alloy material.

3. A belt conveyor head cleaner according to claim 2, characterized in that, The contact surface between the scraper (4) and the conveying surface of the belt (2) is the first contact surface. The first contact surface is an arc-shaped contact surface, and the arc of the first contact surface is the same as the arc of the second roller (1).

4. A belt conveyor head cleaner according to claim 2, characterized in that, The scraper (4) includes a plurality of sub-scrapers arranged along a first direction, which is parallel to the central axis of the second roller (1). The sub-scrapers are detachably connected to the fixing frame (9).

5. A belt conveyor head cleaner according to claim 4, characterized in that, All of the described sub-scrapers have the same structure.

6. A belt conveyor head cleaner according to claim 4, characterized in that, The fixed frame (9) is connected to a rotating shaft (10) extending along the first direction. The two ends of the rotating shaft (10) are rotatably connected to the frame (3). The primary cleaning assembly also includes a pair of spring assemblies (5) disposed at both ends of the rotating shaft (10). The spring assemblies (5) connect the rotating shaft (10) and the frame (3). The spring assemblies (5) are used to apply an elastic force to the rotating shaft (10) so that the scraping part is tightly attached to the conveying surface of the belt (2).

7. A belt conveyor head cleaner according to claim 6, characterized in that, The spring assembly (5) includes a sleeve (11), which is fixedly connected to the end of the rotating shaft (10). The sleeve (11) has a through hole. The spring assembly (5) also includes a connecting rod (13) fixedly connected to the frame (3). The connecting rod (13) extends along a second direction, which is perpendicular to the first direction. The connecting rod (13) movably passes through the through hole. A spring (14) is also movably sleeved on the connecting rod. A clamping member (15) is provided at the free end of the connecting rod (13). The spring (14) is located between the sleeve (11) and the clamping member (15) and is in a stored state.

8. A belt conveyor head cleaner according to claim 1, characterized in that, The secondary cleaning component includes a drive motor (8), which is mounted on the frame (3). The output shaft of the drive motor (8) is connected to a roller brush (7), which is the cleaning part.

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