Belt cleaning device for a belt conveyor

Abstract

The utility model discloses a kind of belt cleaning device for belt conveyor, belong to belt conveyor auxiliary equipment technical field.It include upper cleaning plate component, lower cleaning plate component and connecting screw rod;Upper cleaning plate component is set to the top of conveyor bottom belt, for contacting and cleaning the upper surface of bottom belt;Lower cleaning plate component is set to the below of conveyor bottom belt, for contacting and cleaning the lower surface of bottom belt;At least one connecting screw rod is set along vertical direction, its upper end is connected with upper cleaning plate component, lower end passes through lower cleaning plate component and is connected with adjusting nut by thread, and it is equipped with compression spring on connecting screw rod, compression spring top end leans against lower cleaning plate component, bottom end leans against adjusting nut.Through the unique design setting of upper cleaning plate component and lower cleaning plate component, the simultaneous, thorough cleaning to the upper and lower surface of belt is realized, fundamentally eliminates the serious safety hazard such as friction fire caused by the lower surface coal slime accumulation, idler jam.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary equipment for belt conveyors, and specifically relates to a belt cleaning device for belt conveyors. Background Technology

[0002] Belt conveyors are the core transportation equipment in coal mine conveying systems. When transporting adhesive materials (such as coal slime), the material easily adheres to both the upper and lower surfaces of the belt. As the belt moves, the material adhering to the belt is carried along the route and scattered, causing loose coal accumulation. To clean the material adhering to the belt, belt cleaners are usually installed. Currently, most belt cleaners are straight-plate cleaners, typically installed only above the return section (bottom belt) of the conveyor, and can only clean the upper surface of the belt. For the lower surface of the belt (i.e., the side in contact with the idlers), due to the lack of an effective cleaning device, the adhering coal slime is carried along the route by the belt and accumulates under the idlers. Over time, the accumulated coal slime can submerge the idlers, causing them to malfunction. The running belt and the stationary idlers generate intense friction, producing high temperatures and smoke, posing a serious fire hazard. Furthermore, manually cleaning these accumulated coal slimes is time-consuming and labor-intensive, affecting production efficiency and operational safety. Utility Model Content

[0003] The purpose of this invention is to address the problems of existing cleaning devices only being able to clean one surface of the belt, leading to the accumulation of adhering substances on the other surface, causing safety hazards, equipment wear, and cleaning difficulties. This invention provides a belt cleaning device for belt conveyors that can achieve simultaneous cleaning of the upper and lower surfaces of the belt.

[0004] The technical solution adopted in this utility model is as follows: a belt cleaning device for a belt conveyor, comprising an upper cleaning plate assembly, a lower cleaning plate assembly, and a connecting screw; the upper cleaning plate assembly is disposed above the bottom belt of the conveyor and is used to contact and clean the upper surface of the bottom belt; the lower cleaning plate assembly is disposed below the bottom belt of the conveyor and is used to contact and clean the lower surface of the bottom belt; at least one of the connecting screws is arranged vertically, its upper end is connected to the upper cleaning plate assembly, and its lower end passes through the lower cleaning plate assembly and is threadedly connected to an adjusting nut, and a compression spring is fitted on the connecting screw, the top end of the compression spring abuts against the lower cleaning plate assembly, and the bottom end abuts against the adjusting nut; the elastic force of the compression spring is adjusted by the adjusting nut and acts simultaneously on the lower cleaning plate assembly and the upper cleaning plate assembly, so that the two act on the upper and lower surfaces of the bottom belt.

[0005] Furthermore, the upper and lower cleaning plate assemblies adopt the same structure, both including: a strip-shaped cleaning scraper, a pressure plate, and a pressure strip; the pressure plate is disposed on the front side of the cleaning scraper, and the pressure strip is disposed on the back side of the cleaning scraper; the cleaning scraper, pressure plate, and pressure strip are fixed together by multiple connecting bolt assemblies;

[0006] The pressure strip of the upper cleaning plate assembly is connected to the fixing frame at both ends; the pressure strip of the lower cleaning plate assembly is provided with a through hole for the connecting screw to pass through.

[0007] Furthermore, the mounting portion of the pressure strip for mounting the cleaning scraper is provided with bent portions at both ends, which are bent along the running direction of the bottom belt.

[0008] Furthermore, the bent portions at both ends of the pressure strip of the upper cleaning plate assembly are respectively connected to the fixing frame by bolts.

[0009] Furthermore, the cross-section of the pressure strip is L-shaped.

[0010] Furthermore, the installation directions of the upper and lower cleaning plate assemblies are arranged obliquely to the running direction of the bottom belt.

[0011] Furthermore, the cleaning scraper is made from recycled belts.

[0012] Furthermore, the fixing frame is detachably fixed to the H-frame of the belt conveyor by U-shaped clamps and connecting nuts.

[0013] Furthermore, the fixing frame includes a front crossbeam, a rear crossbeam, and a connecting rod; the front crossbeam is connected to the front end of the upper cleaning plate assembly, the rear crossbeam is connected to the rear end of the upper cleaning plate assembly, and the connecting rod is connected between the front crossbeam and the rear crossbeam.

[0014] Furthermore, both the front and rear crossbeams are L-shaped.

[0015] The beneficial effects of this utility model are:

[0016] 1. Through the unique design of the upper and lower cleaning plate assemblies, the upper and lower surfaces of the belt can be cleaned simultaneously and thoroughly, fundamentally eliminating serious safety hazards such as idler jamming and friction fire caused by coal sludge accumulation on the lower surface.

[0017] 2. By utilizing the clamping spring, the cleaning plate is always pressed against the belt surface. Even when there is a firmly stuck object or a block of debris, the cleaning plate will not be bounced up to release the cargo or coal sludge, thus ensuring cleaning reliability.

[0018] 3. The pressure spring is designed so that when the cleaning components wear out, the spring can automatically release its travel to compensate, thus extending the effective working time of the cleaning components.

[0019] 4. The oblique installation of the sweeping plate assembly can concentrate and guide the scraped material to the pedestrian side, making it easier to collect and clean. Attached Figure Description

[0020] Figure 1 This is the front view of the present utility model;

[0021] Figure 2 This is the left view of the present invention;

[0022] Figure 3 This is a top view of the present invention.

[0023] In the figure, the components are: upper sweeping plate assembly 1, sweeping scraper 110, pressure plate 120, pressure strip 130, connecting bolt assembly 140, lower sweeping plate assembly 2, connecting screw 3, fixing frame 4, front crossbeam 410, rear crossbeam 420, connecting tie rod 430, adjusting nut 5, bottom belt 6, pressure spring 7, U-shaped clamp 8, connecting nut 9, and H-frame 10. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0025] In this specification, unless otherwise stated, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientation or positional relationship shown is for the purpose of describing the present invention only, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0026] Belt cleaning devices for belt conveyors, such as Figure 1 , Figure 2 and Figure 3 As shown, the assembly includes an upper cleaning plate assembly 1, a lower cleaning plate assembly 2, and a connecting screw 3. The upper cleaning plate assembly 1 is positioned above the bottom conveyor belt 6 and is used to contact and clean the upper surface of the bottom conveyor belt 6. The lower cleaning plate assembly 2 is positioned below the bottom conveyor belt 6 and is used to contact and clean the lower surface of the bottom conveyor belt 6. At least one of the connecting screws 3 is vertically arranged, with its upper end connected to the upper cleaning plate assembly 1 and its lower end passing through the lower cleaning plate assembly 2 and threadedly connected to an adjusting nut 5. A compression spring 7 is fitted on the connecting screw 3, with its top end abutting against the lower cleaning plate assembly 2 and its bottom end abutting against the adjusting nut 5. The elastic force of the compression spring 7 is adjusted by the adjusting nut 5 and acts simultaneously on both the lower cleaning plate assembly 2 and the upper cleaning plate assembly 1, pressing them tightly against the upper and lower surfaces of the bottom conveyor belt 6.

[0027] This utility model discloses a belt cleaning device for belt conveyors. Through a mechanism including a pressure spring 7 and a connecting screw 3, it achieves synchronous and automatic pressure cleaning of the upper and lower surfaces of the belt. This fundamentally solves the technical problem that traditional belt cleaning devices can only clean one side, leading to coal sludge accumulation on the lower surface and causing safety accidents. The pressure spring 7 provides continuous pressure, ensuring stable cleaning results.

[0028] Adjusting nut 5 can be a wing nut, allowing for quick and easy adjustment of spring pressure without tools, making it convenient to use.

[0029] Furthermore, the upper cleaning plate assembly 1 and the lower cleaning plate assembly 2 adopt the same structure, both including: a strip-shaped cleaning scraper 110, a pressure plate 120, and a pressure strip 130; the pressure plate 120 is disposed on the front side of the cleaning scraper 110, and the pressure strip 130 is disposed on the back side of the cleaning scraper 110; the cleaning scraper 110, the pressure plate 120, and the pressure strip 130 are fixed together by multiple connecting bolt assemblies 140;

[0030] The pressure strip 130 of the upper cleaning plate assembly 1 is connected to the fixing frame 4 at both ends; the pressure strip 130 of the lower cleaning plate assembly 2 is provided with a through hole for the connecting screw 3 to pass through.

[0031] First, the upper cleaning plate assembly 1 and the lower cleaning plate assembly 2 adopt the same structure, realizing the standardization and interchangeability of parts, greatly simplifying spare parts management and inventory costs, and facilitating manufacturing and assembly. Second, the three-layer clamping structure of "pressure plate 120, cleaning scraper 110 and pressure strip 130" is used and fixed with bolts, making the installation of the cleaning scraper firm and reliable. When it wears out, it can be quickly and individually replaced, making maintenance very convenient and reducing maintenance costs and time.

[0032] The cleaning scraper 110 is made from recycled conveyor belts. Directly utilizing recycled conveyor belts as the material for the cleaning scraper achieves resource recycling, significantly reducing the cost of key wear parts. This aligns with the concept of green environmental protection and brings significant economic benefits to users.

[0033] The cross-section of the pressure strip 130 is L-shaped. The L-shaped pressure strip 130 itself is a high-strength, low-cost standard profile (such as angle iron). While providing sufficient support strength, the L-shaped structure also provides a natural and reliable reference surface for installing the cleaning scraper and connecting the fixing bracket, simplifying the processing and assembly process.

[0034] The pressure plate 120 can be made of iron plate.

[0035] The installation directions of the upper cleaning plate assembly 1 and the lower cleaning plate assembly 2 are obliquely arranged to the running direction of the bottom belt 6.

[0036] An oblique arrangement refers to an angle of less than 90 degrees between the upper cleaning plate assembly 1 and the lower cleaning plate assembly 2 and the running direction of the belt 6. Typically, the upper cleaning plate assembly 1 and the lower cleaning plate assembly 2 are installed at an angle of 30° to 60° to the running direction of the belt 6. This oblique installation generates a component of the cleaning force along the transverse direction of the belt, continuously and efficiently guiding and concentrating the scraped material to one side of the conveyor (usually the pedestrian side). This greatly facilitates subsequent material collection and cleaning, prevents material from scattering under the belt, and improves the cleanliness and safety of the working environment.

[0037] The pressure strip 130 is used to install the cleaning scraper 110. Both ends of the mounting part are respectively provided with bent parts that bend along the running direction of the bottom belt 6.

[0038] The bent portions at both ends of the pressure strip 130 form a reinforced structural frame, which significantly improves the overall rigidity and deformation resistance of the entire sweeping plate assembly, making it less prone to bending when subjected to uneven pressure from the belt and continuous force from the spring, thus ensuring uniform distribution of sweeping pressure and stability of sweeping effect.

[0039] The bent portions at both ends of the pressure strip 130 of the upper cleaning plate assembly 1 are respectively connected to the fixing frame 4 by bolts.

[0040] An adjustable connection between the upper cleaning plate assembly and the mounting bracket is achieved through bolting. This connection method is not only robust but also allows for fine-tuning of the angle and position of the upper cleaning plate assembly during installation, ensuring optimal contact with the belt surface and optimizing cleaning performance.

[0041] Furthermore, the fixing frame 4 is detachably fixed to the H-frame 10 of the belt conveyor via U-shaped clamps 8 and connecting nuts 9. For example, a Φ13mm hole is drilled in the fixing frame 4 at an appropriate position near the H-frame 10, and a Φ12mm U-shaped clamp 8 is used to wrap around the H-frame 10, pass through the Φ13mm hole, and then the Φ12mm connecting nut 9 is tightened, thereby fixing the cleaning device to both sides of the belt H-frame 10. The U-shaped clamp can adapt to H-frames of different sizes, and the installation and disassembly process does not require welding or drilling on the H-frame, achieving rapid and non-destructive deployment. It is particularly suitable for modification and addition to existing equipment, and also facilitates subsequent maintenance and adjustment.

[0042] Furthermore, the fixing frame 4 includes a front crossbeam 410, a rear crossbeam 420, and a connecting rod 430; the front crossbeam 410 is connected to the front end of the upper cleaning plate assembly 1, the rear crossbeam 420 is connected to the rear end of the upper cleaning plate assembly 1, and the connecting rod 430 is connected between the front crossbeam 410 and the rear crossbeam 420.

[0043] The mounting frame 4 adopts a frame structure consisting of front and rear crossbeams and connecting rods 430, forming a stable and robust support body. This structure can effectively distribute and balance the forces and torques on the upper cleaning plate assembly 1, preventing deformation or damage caused by excessive force at a single point, and ensuring the stability and reliability of the entire device during long-term operation.

[0044] Furthermore, both the front crossbeam 410 and the rear crossbeam 420 are L-shaped.

[0045] The use of L-shaped crossbeams (such as angle iron) also leverages the advantages of high strength and easy availability of standard profiles. The two vertical sides of the L-shape provide a convenient and reliable mounting surface for connecting the upper cleaning plate assembly and the connecting rod, simplifying the manufacturing and assembly process of the mounting bracket and reducing costs.

[0046] In the specific manufacturing process, two strip-shaped belts, each 200mm wide and 200mm longer than the bottom belt 6 of the belt conveyor, are processed from scrap belts to serve as the cleaning scrapers 110 of the upper cleaning plate assembly 1 and the lower cleaning plate assembly 2, respectively. For example, if the width of the bottom belt 6 of the belt conveyor is 1 meter, then the processing length of the strip-shaped belts is 1.2 meters, so that they can be installed obliquely to the belt movement direction on the bottom belt 6. Two strip-shaped iron plates, each 50mm wide and approximately equal in length to the strip-shaped belts, are processed from 4mm thick iron plates to serve as the pressure plates 120 of the upper cleaning plate assembly 1 and the lower cleaning plate assembly 2, respectively. Two pressure strips 130 are processed from 50mm angle iron to serve as the pressure strips 130 of the upper cleaning plate assembly 1 and the lower cleaning plate assembly 2, respectively. The pressure strips 130 have through holes at both ends for installing the connecting screws 3.

[0047] During processing, a strip of iron plate is pressed onto the front of a strip of belt, and the back of the strip of belt is pressed onto a pressure strip 130 made of 50mm angle iron. Φ12mm screw holes are drilled at corresponding positions on the pressure strip 130, the cleaning scraper 110 and the pressure plate 120. The number of holes is appropriate. The three are fixed with Φ10mm bolts to form two cleaning plate assemblies, namely the upper cleaning plate assembly 1 and the lower cleaning plate assembly 2.

[0048] The pressure strip 130 of the upper cleaning plate assembly 1 must have a connection part with the fixing frame 4, and the connection part must have a connecting bolt hole 9. The pressure strip 130 of the lower cleaning plate assembly 2, which is installed on the lower surface of the belt, does not need to have a connection part. The fixing frame 4 connecting the cleaning device and the belt H-frame is welded and processed. Since the cleaning plate is obliquely intersecting the bottom belt 6, the fixing frame 4 must be processed into two angle irons of different lengths, aligned at the H-frame, and a connecting tie rod 430 is installed in the middle of the fixing frame 4 formed by the two angle irons to reinforce the fixing frame of the cleaning device.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Belt cleaning device for a belt conveyor, characterized in that It includes an upper cleaning plate assembly (1), a lower cleaning plate assembly (2), and a connecting screw (3); The upper cleaning plate assembly (1) is disposed above the bottom belt (6) of the conveyor and is used to contact and clean the upper surface of the bottom belt (6); the lower cleaning plate assembly (2) is disposed below the bottom belt (6) of the conveyor and is used to contact and clean the lower surface of the bottom belt (6). At least one of the connecting screws (3) is arranged vertically, with its upper end connected to the upper cleaning plate assembly (1) and its lower end passing through the lower cleaning plate assembly (2) and threadedly connected to the adjusting nut (5). A compression spring (7) is fitted on the connecting screw (3), with the top end of the compression spring (7) abutting against the lower cleaning plate assembly (2) and the bottom end abutting against the adjusting nut (5).

2. Belt cleaning device for a belt conveyor according to claim 1, characterized in that The upper cleaning plate assembly (1) and the lower cleaning plate assembly (2) adopt the same structure, both including: a strip-shaped cleaning scraper (110), a pressure plate (120) and a pressure strip (130); the pressure plate (120) is disposed on the front of the cleaning scraper (110) and the pressure strip (130) is disposed on the back of the cleaning scraper (110); the cleaning scraper (110), the pressure plate (120) and the pressure strip (130) are fixed together by multiple connecting bolt assemblies (140); The pressure strip (130) of the upper cleaning plate assembly (1) is connected to the fixing frame (4) at both ends; the pressure strip (130) of the lower cleaning plate assembly (2) is provided with a through hole for the connecting screw (3) to pass through.

3. Belt cleaning device for a belt conveyor according to claim 2, characterized in that The pressure strip (130) is used to install the cleaning scraper (110) and has bending parts at both ends that bend along the running direction of the bottom belt (6).

4. The belt cleaning device for a belt conveyor according to claim 3, characterized in that... The bent portions at both ends of the pressure strip (130) of the upper cleaning plate assembly (1) are connected to the fixing frame (4) by bolts.

5. Belt cleaning device for a belt conveyor according to any one of claims 2 to 4, characterized in that The cross-section of the pressure strip (130) is L-shaped.

6. The belt cleaning device for a belt conveyor according to any one of claims 2 to 4, characterized in that The installation directions of the upper cleaning plate assembly (1) and the lower cleaning plate assembly (2) are obliquely arranged to the running direction of the bottom belt (6).

7. Belt cleaning device for a belt conveyor according to any one of claims 2 to 4, characterized in that The cleaning scraper (110) is made from waste belts.

8. The belt cleaning device for a belt conveyor according to any one of claims 2 to 4, characterized in that The fixing frame (4) is detachably fixed to the H frame (10) of the belt conveyor by U-shaped clamps (8) and connecting nuts (9).

9. Belt cleaning device for a belt conveyor according to claim 8, characterized in that The fixing frame (4) includes a front crossbeam (410), a rear crossbeam (420), and a connecting rod (430); the front crossbeam (410) is connected to the front end of the upper cleaning plate assembly (1), the rear crossbeam (420) is connected to the rear end of the upper cleaning plate assembly (1), and the connecting rod (430) is connected between the front crossbeam (410) and the rear crossbeam (420).

10. Belt cleaning device for a belt conveyor according to claim 9, characterized in that Both the front crossbeam (410) and the rear crossbeam (420) are L-shaped.

Images