Large inclination angle belt return back foreign matter cleaning device

Abstract

This utility model provides a foreign object cleaning device for the return stroke of a large-angle conveyor belt, belonging to the field of conveyor belt cleaning technology. The technical solution is as follows: a foreign object cleaning device for the return stroke of a large-angle conveyor belt includes a support frame, on which at least one set of scraping mechanisms is installed. Each scraping mechanism includes a housing, with a groove inside the housing. A slider is installed in the groove and can slide vertically within the groove. Several springs are arranged between the slider and the bottom of the groove. A scraper penetrating the top of the housing is fixed to the top of the slider. A support plate is fixed to the bottom of the housing. An adjustment mechanism is provided between the support plate and the support frame, which can adjust the position of the support plate. The beneficial effect of this utility model is that this device utilizes the elastic buffering characteristics of springs to adaptively compensate for tension fluctuations during belt operation, ensuring dynamic contact between the scraper and the non-working surface of the belt, thereby effectively scraping away foreign objects attached to the belt.

Description

Technical Field

[0001] This utility model belongs to the field of conveyor belt cleaning technology, specifically relating to a foreign object cleaning device for the return stroke of a large-angle belt. Background Technology

[0002] Inclined belt conveyors are key equipment for vertical material lifting in mining, ports, and other fields, enabling the transport of materials with significant height differences within limited spaces. During belt operation, dust, particles, and other foreign objects inevitably accumulate on the working surface. When the belt enters the return phase, the original working surface flips to become the non-working surface. If these foreign objects are not removed promptly, they will circulate back to the working phase with the belt, leading to material contamination, abnormal belt wear, and even roller jamming. Therefore, cleaning foreign objects from the non-working surface of the inclined belt during the return phase is a necessary measure to ensure the efficient operation of the conveying system and extend equipment life.

[0003] Existing cleaning mechanisms mainly consist of scrapers, support frames, and fixed connectors. The scrapers are mostly made of metal or rigid engineering plastics and are rigidly connected to the support frame by fixing bolts. The support frame is usually made of angle steel or channel steel welded into an L-shaped or U-shaped structure. The mounting surface of the scraper has strip-shaped mounting holes. The scraper is fixed to the support frame by bolts passing through the strip-shaped holes and fixing it to the horizontal arm of the support frame.

[0004] However, in practical applications, because the return belt surface is a non-working surface, the number of idlers in this area is usually small to reduce costs and frictional resistance. This results in the return belt not obtaining sufficient tension, making it prone to slack and sagging. When the belt is slack, the scraper cannot maintain a tight fit with the belt surface, causing the scraper to be unable to effectively remove foreign objects. Utility Model Content

[0005] This invention addresses the problem that the scraper cannot effectively remove foreign objects because it cannot make close contact with the non-working surface of the belt. It provides a foreign object cleaning device for the return stroke of a large-angle belt that enables the scraper to make close contact with the non-working surface of the belt and effectively remove foreign objects.

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows: a foreign object cleaning device for the return stroke of a large-angle belt, including a support frame, at least one set of scraping mechanisms on the support frame, each set of scraping mechanisms including a housing, a groove inside the housing, a slider installed in the groove, the slider being able to slide vertically in the groove, several springs being provided between the slider and the bottom of the groove, a scraper penetrating the top of the housing being fixed to the top of the slider, a support plate being fixed to the bottom of the housing, and an adjustment mechanism being provided between the support plate and the support frame, the adjustment mechanism being able to adjust the position of the support plate.

[0007] In this technical solution, the support frame can be fixed to the bracket below the belt conveyor, and the adjustment mechanism can adjust the angle and height of the housing so that the top of the scraper is in contact with the non-working surface of the belt. At this time, the scraper, under the pressure of the belt, retracts into the chute and applies pressure to several springs at the bottom through the slider. When the belt is running, the springs continuously apply an upward force to the scraper through the slider, ensuring that the top of the scraper remains in close contact with the non-working surface of the belt. Therefore, this device utilizes the elastic buffering characteristics of the springs to adaptively compensate for tension fluctuations during belt operation, ensuring a dynamic contact effect between the scraper and the non-working surface of the belt, thereby effectively scraping away foreign objects attached to the belt and solving the problem of incomplete cleaning caused by gaps in traditional cleaning devices.

[0008] Furthermore, a limiting hole is provided at the top of the housing, which communicates with the slide groove. The cross-sectional dimension of the limiting hole is smaller than that of the slider. After the scraper passes through the limiting hole, it is fixedly connected to the slider. The smaller cross-sectional dimension of the limiting hole creates a mechanical barrier through the difference in cross-sectional dimensions. When the slider slides upward in the slide groove, the limiting hole can prevent the slider from moving further and avoid it from coming off the top of the slide groove. At the same time, the limiting hole allows the scraper to slide up and down through the limiting hole, adapting to the undulations of the non-working surface of the belt.

[0009] Furthermore, several springs are arranged vertically, with their upper ends fixedly connected to the bottom of the slider and their lower ends fixedly connected to the bottom of the groove. The vertically arranged spring axes are aligned with the scraper's direction of movement, allowing the spring's elastic force to directly act on the slider. The slider then drives the scraper to slide up and down along the groove, maximizing the efficiency of elastic force transmission. When the non-working surface of the belt presses against the scraper, the springs compress vertically, absorbing the impact force generated by belt tension fluctuations. In addition, the evenly arranged vertical springs ensure balanced force on the slider, preventing scraper skewing due to uneven force at a single point, thus guaranteeing full contact between the scraper and the non-working surface of the belt and improving the uniformity of foreign matter removal.

[0010] Furthermore, the adjustment mechanism includes an angle adjustment component and a height adjustment component. The angle adjustment component can adjust the angle of the housing, and the height adjustment component can adjust the height of the housing. By adjusting the pitch or yaw angle of the housing through the angle component, the working surface of the scraper and the non-working surface of the belt are kept in perpendicular contact, avoiding uneven scraping or localized wear caused by angle deviation. The height adjustment component can precisely control the initial contact pressure between the scraper and the belt. By adjusting the height of the housing, the top of the scraper is made to fit against the belt with appropriate force, which prevents excessive pressure from aggravating belt wear and also prevents insufficient pressure from causing foreign matter residue.

[0011] Furthermore, the angle adjustment assembly includes a support cylinder located below the support plate. Mounting plates are fitted onto both ends of the support cylinder, and these plates are rotatably connected to the support cylinder. The top of the mounting plate is fixedly connected to the bottom of the support plate. This rotatable connection allows the support plate to rotate around the axis of the support cylinder, thereby adjusting the pitch or yaw angle of the housing. When dealing with belts at different tilt angles, the angle of the housing can be adjusted by rotating the support plate to keep the scraper perpendicular to the non-working surface of the belt, ensuring cleaning efficiency.

[0012] Furthermore, a fastening ring is fixed to the side of the mounting plate. The fastening ring is coaxially arranged with the support cylinder, and the inner cylindrical surface of the fastening ring is in clearance fit with the outer cylindrical surface of the support cylinder. A fastening screw is threaded onto the fastening ring, and the fastening screw is arranged radially along the fastening ring. The clearance fit between the inner cylindrical surface of the fastening ring and the outer cylindrical surface of the support cylinder allows the mounting plate to rotate freely around the support cylinder when not tightened, ensuring no jamming during angle adjustment. The fastening screw is arranged radially along the fastening ring, and after tightening, the end of the fastening screw can press the support cylinder radially along the fastening ring, thus fixing the support cylinder and the fastening ring relatively.

[0013] Furthermore, the fastening ring is equipped with at least two fastening screws, all of which are evenly distributed at equal angles around the axis of the fastening ring. Single-screw compression may lead to excessive local stress in the support cylinder, while the uniform force applied by multiple screws disperses the pressure, reduces local deformation or damage, and extends the service life of the support cylinder and the fastening ring. The multi-point compression structure formed by multiple screws more firmly restricts the rotation of the support cylinder, especially in vibration environments; the symmetrical locking force reduces the risk of loosening and maintains a fixed angle.

[0014] Furthermore, at least one set of height adjustment components is provided between the support cylinder and the support frame. The height position of the support cylinder can be adjusted by the height adjustment components according to the actual working conditions, so that it can adapt to belt conveyors with different inclination angles.

[0015] Furthermore, each height adjustment assembly includes a first adjustment rod and a second adjustment rod. One end of the first adjustment rod is fixedly connected to the outer cylindrical surface of the support cylinder, and the other end of the first adjustment rod is hinged to one end of the second adjustment rod. The other end of the second adjustment rod is hinged to the support frame. The first and second adjustment rods are connected by hinges to form a linkage mechanism. By controlling the angle between the first and second adjustment rods, the position of the support cylinder can be controlled.

[0016] Furthermore, the support frame is designed in a V-shape, with reinforcing plates fixed inside. The V-shape, similar to a triangular structure, is less prone to deformation under stress and can resist both vertical and lateral forces, making the support more stable. The reinforcing plates, fixed inside the V-shape, prevent the sides of the support frame from bending or deforming, making the overall structure more robust.

[0017] As can be seen from the above technical solution, the advantages of this utility model are as follows: In this technical solution, the support frame can be fixed to the bracket below the belt conveyor, and the adjustment mechanism can adjust the angle and height of the shell so that the top of the scraper is in contact with the non-working surface of the belt. At this time, the scraper is partially retracted into the groove under the pressure of the belt, and pressure is applied to several springs at the bottom through the slider. When the belt is running, the several springs continuously apply an upward force to the scraper through the slider, so that the top of the scraper always keeps in close contact with the non-working surface of the belt. In summary, this device utilizes the elastic buffering characteristics of the springs to adaptively compensate for the tension fluctuations during belt operation, ensuring the dynamic contact effect between the scraper and the non-working surface of the belt, thereby effectively scraping away foreign objects attached to the belt and solving the problem of incomplete cleaning caused by gaps in traditional cleaning devices. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram illustrating a specific embodiment of the present invention. Figure 1 ;

[0020] Figure 2 This is a structural diagram illustrating a specific embodiment of the present invention. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the scraping mechanism in a specific embodiment of the present invention.

[0022] In the diagram: 1. Support frame; 11. Reinforcing plate; 2. Scraping mechanism; 21. Housing; 211. Support plate; 22. Slide groove; 23. Spring; 24. Slider; 25. Limiting hole; 26. Scraper; 3. Angle adjustment assembly; 31. Support cylinder; 32. Mounting plate; 33. Fastening ring; 34. Fastening screw; 4. Height adjustment assembly; 41. First adjusting rod; 42. Second adjusting rod. Detailed Implementation

[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0024] A foreign object removal device for a large-angle belt conveyor return trip, such as Figure 1 As shown, the system includes a support frame 1, which is V-shaped and has a reinforcing plate 11 welded inside. The support plate 211 can be mounted on the lower support of the belt conveyor. The support frame 1 is equipped with at least one set of scraping mechanisms 2. Each scraping mechanism 2 can be fixedly mounted on the support below the belt conveyor belt and can scrape and clean foreign objects on the non-working surface of the belt return. An adjustment mechanism is provided between each scraping mechanism 2 and the support frame 1, allowing adjustment of the position of the support plate 211.

[0025] like Figure 3 As shown, in this specific embodiment, each scraping mechanism 2 includes a housing 21, which is rectangular in shape, with its length direction aligned with the width direction of the belt. A groove 22 is provided inside the housing 21, and a slider 24 is installed within the groove 22. The slider 24 can slide vertically within the groove 22. Several springs 23 are arranged vertically between the slider 24 and the bottom of the groove 22, with the upper ends of each spring 23 welded to the bottom of the slider 24 and the lower ends of each spring 23 welded to the bottom of the groove 22.

[0026] A limiting hole 25 is provided on the top of the housing 21. The limiting hole 25 has a rectangular cross-section, and its length is the same as that of the housing 21. The limiting hole 25 is connected to the slide groove 22. The cross-sectional dimension of the limiting hole 25 is smaller than that of the slider 24. That is, the difference in cross-sectional dimensions between the limiting hole 25 and the slide groove 22 can form a mechanical barrier. When the slider 24 slides upward in the slide groove 22, the limiting hole 25 can prevent the slider 24 from continuing to move, thus preventing the slider 24 from coming off the top of the slide groove 22. A scraper 26 is inserted into the limiting hole 25. The bottom of the scraper 26 is fixedly connected to the top of the slider 24 by bolts. The cross-sectional shape of the scraper 26 is the same as that of the limiting hole 25. The scraper 26 can slide up and down vertically within the limiting hole 25. A support plate 211 is provided below the housing 21. There are two support plates 211. The two support plates 211 are located on both sides of the housing 21 along the length direction, and the top of the two support plates 211 are welded to the bottom of the housing 21.

[0027] like Figure 2 As shown, in this specific embodiment, the adjustment mechanism includes an angle adjustment component 3 and a height adjustment component 4. The angle adjustment component 3 can adjust the angle of the housing 21, and the height adjustment component 4 can adjust the height of the housing 21.

[0028] The angle adjustment assembly 3 includes a support cylinder 31, located below the support plate 211. The support cylinder 31 is cylindrical, and its length is parallel to that of the housing 21. Mounting plates 32 are fitted onto both ends of the support cylinder 31, with the top of the mounting plates 32 welded to the bottom of the support plate 211. The mounting plates 32 are rectangular, with a through hole in the center. The diameter of the through hole is the same as the diameter of the outer cylindrical surface of the support cylinder 31, and the outer cylindrical surface of the support cylinder 31 is rotatably connected to the through hole in the mounting plate 32. The mounting plate 32 also has four mounting holes, evenly distributed at equal angles around the axis of the through hole. The mounting plate 32 can be bolted to the support bracket below the belt conveyor through these mounting holes.

[0029] A fastening ring 33 is provided on the side of the mounting plate 32. The fastening ring 33 is a metal ring that fits onto the outer cylindrical surface of the support cylinder 31. The end face of the fastening ring 33 near the mounting plate 32 is welded to the mounting plate 32, and the fastening ring 33 is coaxial with the support cylinder 31. The inner cylindrical surface of the fastening ring 33 is clearance-fitted with the outer cylindrical surface of the support cylinder 31. In addition, a threaded hole is provided on the side wall of the fastening ring 33, and a fastening screw 34 threadedly connected to it is installed in the threaded hole. The fastening screw 34 is arranged radially along the fastening ring 33. At least two fastening screws 34 are provided on the fastening ring 33, and all the fastening screws 34 are evenly distributed at equal angles around the axis of the fastening ring 33. In this embodiment, there are two fastening screws 34, and these two fastening screws 34 are evenly distributed at equal angles around the axis of the fastening ring 33.

[0030] At least one set of height adjustment components 4 is provided between the support cylinder 31 and the support frame 1. Each set of height adjustment components 4 includes a first adjustment rod 41 and a second adjustment rod 42. One end of the first adjustment rod 41 is welded to the outer cylindrical surface of the support cylinder 31, and the other end of the first adjustment rod 41 is hinged to one end of the second adjustment rod 42. The other end of the second adjustment rod 42 is hinged to the reinforcing plate 11 on the support frame 1.

[0031] The usage process of this utility model is as follows: First, the support frame 1 is installed at a predetermined position on the support under the belt conveyor. Then, according to the position of the belt, the support cylinder 31 is moved below the non-working surface of the belt by adjusting the tilt angle of the first adjusting rod 41 and the second adjusting rod 42. Next, the housing 21 is rotated so that the housing 21 and the mounting plate 32 begin to rotate relative to the support cylinder 31. After the housing 21 is adjusted to an appropriate angle, the mounting plate 32 is fixed to the support under the belt of the belt conveyor by bolts. During the bolt tightening process, the angle of the housing 21 is simultaneously finely adjusted until the scraper 26 on the housing 21 is perpendicularly abutting against the non-working surface of the belt. At this time, part of the scraper 26 is pressed into the groove 22 by the belt, and the spring 23 is in a compressed state. When the scraper 26 begins to scrape and clean the foreign objects on the non-working surface of the belt, the spring 23 can absorb the impact force generated by the belt tension fluctuation, thereby ensuring that the scraper 26 always remains in contact with the non-working surface of the belt.

[0032] As can be seen from the above embodiments, the beneficial effects of this utility model are as follows: In this specific embodiment, the support frame can be fixed to the bracket below the belt conveyor, and the adjustment mechanism can adjust the angle and height of the housing, so that the top of the scraper forms an abutment state with the non-working surface of the belt. At this time, the scraper is partially retracted into the groove under the pressure of the belt, and pressure is applied to several springs at the bottom through the slider. When the belt is running, the several springs continuously apply an upward force to the scraper through the slider, causing the top of the scraper to always keep in close contact with the non-working surface of the belt. In summary, this device utilizes the elastic buffering characteristics of the springs to adaptively compensate for the tension fluctuations during belt operation, ensuring the dynamic contact effect between the scraper and the non-working surface of the belt, thereby effectively scraping away foreign objects attached to the belt and solving the problem of incomplete cleaning caused by gaps in traditional cleaning devices.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A foreign object cleaning device for the return stroke of a belt conveyor with a large inclination angle, comprising a support frame (1), characterized in that, At least one set of scraping mechanisms (2) is provided on the support frame (1). Each set of scraping mechanisms (2) includes a housing (21). A groove (22) is provided inside the housing (21). A slider (24) is installed in the groove (22). The slider (24) can slide vertically in the groove (22). Several springs (23) are provided between the slider (24) and the bottom of the groove (22). A scraper (26) that penetrates the top of the housing (21) is fixed to the top of the slider (24). A support plate (211) is fixed to the bottom of the housing (21). An adjustment mechanism is provided between the support plate (211) and the support frame (1). The adjustment mechanism can adjust the position of the support plate (211).

2. The large-angle belt return foreign object cleaning device according to claim 1, characterized in that, The top of the housing (21) is provided with a limiting hole (25), which is connected to the slide (22). The cross-sectional dimension of the limiting hole (25) is smaller than that of the slider (24). The scraper (26) passes through the limiting hole (25) and is fixedly connected to the slider (24).

3. The foreign object cleaning device for the large-angle belt return stroke according to claim 1, characterized in that, Several springs (23) are arranged vertically, the upper ends of several springs (23) are fixedly connected to the bottom of the slider (24), and the lower ends of several springs (23) are fixedly connected to the bottom of the groove (22).

4. The foreign object cleaning device for the large-angle belt return stroke according to claim 1, characterized in that, The adjustment mechanism includes an angle adjustment component (3) and a height adjustment component (4). The angle adjustment component (3) can adjust the angle of the housing (21), and the height adjustment component (4) can adjust the height of the housing (21).

5. The foreign object cleaning device for the large-angle belt return stroke according to claim 4, characterized in that, The angle adjustment component (3) includes a support cylinder (31), which is located below the support plate (211). Both ends of the support cylinder (31) are fitted with mounting plates (32), which are rotatably connected to the support cylinder (31). The top of the mounting plate (32) is fixedly connected to the bottom of the support plate (211).

6. The foreign object cleaning device for the large-angle belt return stroke according to claim 5, characterized in that, A fastening ring (33) is fixed on the side of the mounting plate (32). The fastening ring (33) is coaxially arranged with the support cylinder (31), and the inner cylindrical surface of the fastening ring (33) is clearance-fitted with the outer cylindrical surface of the support cylinder (31). A fastening screw (34) is threaded onto the fastening ring (33), and the fastening screw (34) is arranged radially along the fastening ring (33).

7. The foreign object cleaning device for the large-angle belt return stroke according to claim 6, characterized in that, At least two fastening screws (34) are provided on the fastening ring (33), and all the fastening screws (34) are evenly distributed at equal angles around the axis of the fastening ring (33).

8. The foreign object cleaning device for the large-angle belt return stroke according to claim 5, characterized in that, At least one set of height adjustment components (4) is provided between the support cylinder (31) and the support frame (1).

9. The foreign object cleaning device for the large-angle belt return stroke according to claim 8, characterized in that, Each height adjustment assembly (4) includes a first adjustment rod (41) and a second adjustment rod (42). One end of the first adjustment rod (41) is fixedly connected to the outer cylindrical surface of the support cylinder (31), and the other end of the first adjustment rod (41) is hinged to one end of the second adjustment rod (42). The other end of the second adjustment rod (42) is hinged to the support frame (1).

10. The foreign object cleaning device for the large-angle belt return stroke according to claim 1, characterized in that, The support frame (1) is set in a V shape, and a reinforcing plate (11) is fixed inside the support frame (1).

Images