Bucket elevator inner wall cleaning device

Abstract

The utility model discloses an inner wall cleaning device for a bucket elevator, which comprises hoppers of the bucket elevator, a chain wheel is rotatably mounted in a conveying channel of the bucket elevator, a transmission chain is sleeved on the surface of the chain wheel, a plurality of hoppers are fixedly mounted on the surface of the transmission chain, and an inner cavity of each hopper is composed of two inner end faces and an arc-shaped bottom face. Swing arms are rotationally installed on the two inner end faces of the hopper, a scraper is fixedly installed between the two swing arms, and the scraper slides along the arc-shaped bottom face of the hopper. According to the device, the scraper blade is arranged in the hopper, the transmission rack is arranged in the material conveying channel, and the gear rolls along the surface of the transmission rack by utilizing the operation power of the hopper, so that the scraper blade is driven to circumferentially operate, and attached materials on the inner wall of the hopper are shoveled, and due to the design, the operation of the scraper blade cannot interfere with the operation of the hopper; normal material conveying rhythm and working efficiency are guaranteed, and the effect of automatically cleaning the inner wall of the hopper is achieved.

Description

Technical Field

[0001] This utility model relates to the field of bucket elevator technology, specifically to a bucket elevator inner wall cleaning device. Background Technology

[0002] During the operation of a bucket elevator, material adheres to the inner wall of the bucket, reducing the bucket capacity and making cleaning difficult. To address this, prior art publication number CN112439752B discloses a bucket elevator inner wall cleaning device, comprising a main body with an upward-opening working chamber. The lower end wall of the working chamber has an upward-opening vibrating chamber. The left end wall of the working chamber connects to a recovery chamber, and the left end wall of the recovery chamber has a connecting pipe with a meshing chamber. Vibration devices are installed in the recovery chamber and the vibrating chamber. A pulley chamber is located on the left side of the recovery chamber, and a transfer chamber is located below the right side of the pulley chamber. A winding chamber is located at the front of the vibrating chamber. This invention can automatically clean the inside of the buckets of the bucket elevator, thereby detaching any solidified material that may adhere to the inner wall of the bucket and allowing for subsequent crushing. This solves the problem of inconvenient bucket cleaning, and the process can be completed without manual intervention, resulting in high cleaning efficiency and reduced time waste.

[0003] In practical use, the above solution uses a knocking and vibration method to clean the material residue in the bucket. Often, the deposits on the inner wall of the bucket cannot be automatically removed by vibration, and they become more and more serious over time. In the end, they still need to be manually removed, which is a huge workload and very inconvenient to use. Based on this, the existing bucket elevator has the problem of difficulty in automatically removing deposits in the bucket, which needs to be further improved. Utility Model Content

[0004] The purpose of this invention is to provide a bucket elevator inner wall cleaning device to solve the problem of the difficulty in automatically removing the attached materials inside the buckets of the elevator.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bucket elevator inner wall cleaning device, comprising a bucket of the bucket elevator, a sprocket rotatably installed in the conveying channel of the bucket elevator, a transmission chain sleeved on the surface of the sprocket, several buckets fixedly installed on the surface of the transmission chain, the inner cavity of the bucket being composed of two inner end faces and an arc-shaped bottom surface, a swing arm rotatably installed on each of the two inner end faces of the bucket, a scraper fixedly installed between the two swing arms, the swing arm sliding along the inner end face of the bucket, the scraper sliding along the arc-shaped bottom surface of the bucket, gears being provided on the outer sides of both ends of the bucket, and the gears being connected to the rotation center of the swing arm through a coupling.

[0006] A transmission rack is installed in the material conveying channel. When the hopper moves with the transmission chain, the gear meshes with the transmission rack and rolls along the surface of the transmission rack, causing the swing arm to rotate. The scraper scrapes off the material attached to the inner wall of the hopper using its circular motion.

[0007] In some embodiments, the coupling includes a mounting sleeve, a first rotating shaft, and a second rotating shaft. Both the first and second rotating shafts are rotatably mounted within the mounting sleeve, which is fixedly mounted on the end face of the hopper. The end of the first rotating shaft away from the second rotating shaft is fixedly connected to a swing arm, and the end of the second rotating shaft away from the first rotating shaft is fixedly connected to a gear. A friction cone and a friction sleeve are provided inside the mounting sleeve. The friction cone is fixedly connected to the first rotating shaft, and the friction sleeve is fitted onto the surface of the friction cone. A hexagonal shaft is fixedly mounted at the end of the friction sleeve away from the friction cone. The hexagonal shaft slides into the second rotating shaft, and the hexagonal cone rotates synchronously with the second rotating shaft. The friction sleeve has a large contact surface with the friction cone, enabling power transmission between the first and second rotating shafts through friction.

[0008] In some embodiments, a sliding cavity is provided inside the second rotating shaft, and a compression spring and a sliding plug are provided inside the sliding cavity. The compression spring is located between the hexagonal shaft and the sliding plug. An adjusting bolt is threaded into the end of the second rotating shaft. The end of the adjusting bolt abuts against the sliding plug to compress the compression spring. Under the action of the compression spring, the friction sleeve and the friction cone are pressed together to a static friction contact state, which provides convenience for manually adjusting the magnitude of the static friction force.

[0009] In some implementations, two support rods are rotatably mounted on the surface of the transmission rack. The two support rods are arranged in parallel, and the end of the support rod away from the transmission rack is rotatably connected to the inner wall of the conveying channel. A plurality of return springs are fixedly mounted on the surface of the transmission rack. The plurality of return springs are arranged in a straight line and abut against the inner wall of the conveying channel. There are two transmission racks, which are arranged in parallel and on the same side of the inner wall of the conveying channel. The hopper moves through the area between the two transmission racks. At this time, the gears on both sides of the hopper roll along the surface of the two transmission racks respectively. A guide plate is fixedly mounted on the end of the transmission rack. The end of the guide plate away from the transmission rack has a curved structure to reduce the gap between the gear and the transmission rack and ensure that the gear rolls normally along the surface of the transmission rack.

[0010] Beneficial effects

[0011] This utility model provides a device for cleaning the inner wall of a bucket elevator, which has the following beneficial effects:

[0012] 1. This bucket elevator inner wall cleaning device, by installing scrapers inside the bucket and transmission racks in the material conveying channel, utilizes the power of the bucket's rotation to make the gears roll along the surface of the transmission rack, thereby driving the scrapers to rotate circumferentially and remove the material adhering to the inner wall of the bucket. This design ensures that the scraper's operation does not interfere with the bucket's operation, guaranteeing the rhythm and efficiency of normal material conveying, achieving the effect of automatically cleaning the inner wall of the bucket, solving the problems of heavy workload for manual cleaning and incomplete cleaning due to vibration, and making it more convenient and efficient to use.

[0013] 2. The inner wall cleaning device of this bucket elevator uses a coupling to transmit power between the gears and the swing arm. When the scraper is blocked by material, the gears cannot rotate freely. At this time, the load on the running bucket will increase sharply, which may cause the entire elevator to seize up, which is very unsafe. However, since the coupling transmits torque through static friction between the friction cone and the friction sleeve, if the load exceeds one end, the friction cone and the friction sleeve will slip, ensuring the normal operation of the bucket and greatly improving the stability and safety of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the orthographic section of the present invention;

[0015] Figure 2 This is a schematic diagram of the hopper's front section structure;

[0016] Figure 3 This is a schematic diagram of the side section structure of the hopper;

[0017] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Material conveying channel, 2. Sprocket, 3. Drive chain, 4. Hopper, 5. Swing arm, 6. Scraper, 7. Gear, 8. Drive rack, 9. Mounting sleeve, 10. First rotating shaft, 11. Second rotating shaft, 12. Friction cone, 13. Friction sleeve, 14. Hexagonal shaft, 15. Compression spring, 16. Sliding plug, 17. Adjusting bolt, 18. Support rod, 19. Return spring, 20. Guide plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4This utility model provides a technical solution: a bucket elevator inner wall cleaning device, including buckets 4 of the bucket elevator, a sprocket 2 rotatably installed in the conveying channel 1 of the bucket elevator, a transmission chain 3 sleeved on the surface of the sprocket 2, several buckets 4 fixedly installed on the surface of the transmission chain 3, the inner cavity of the bucket 4 is composed of two inner end faces and an arc-shaped bottom surface, a swing arm 5 is rotatably installed on each of the two inner end faces of the bucket 4, a scraper 6 is fixedly installed between the two swing arms 5, the swing arms 5 slide along the inner end faces of the bucket 4, the scraper 6 slides along the arc-shaped bottom surface of the bucket 4, gears 7 are provided on the outer sides of both ends of the bucket 4, and the gears 7 are connected to the rotation center of the swing arms 5 through a coupling.

[0021] A transmission rack 8 is installed in the material conveying channel 1. When the hopper 4 rotates with the transmission chain 3, the gear 7 meshes with the transmission rack 8 and rolls along the surface of the transmission rack 8, causing the swing arm 5 to rotate. The scraper 6 scrapes off the material attached to the inner wall of the hopper 4 by circumferential motion.

[0022] Among them, such as Figure 4 As shown, the coupling includes a mounting sleeve 9, a first rotating shaft 10 and a second rotating shaft 11. Both the first rotating shaft 10 and the second rotating shaft 11 are rotatably mounted in the mounting sleeve 9. The mounting sleeve 9 is fixedly mounted on the end face of the hopper 4. The end of the first rotating shaft 10 away from the second rotating shaft 11 is fixedly connected to the swing arm 5, and the end of the second rotating shaft 11 away from the first rotating shaft 10 is fixedly connected to the gear 7.

[0023] The mounting sleeve 9 is provided with a friction cone 12 and a friction sleeve 13. The friction cone 12 is fixedly connected to the first rotating shaft 10. The friction sleeve 13 is sleeved on the surface of the friction cone 12. A hexagonal shaft 14 is fixedly installed at the end of the friction sleeve 13 away from the friction cone 12. The hexagonal shaft 14 is slidably inserted into the second rotating shaft 11. The hexagonal shaft 14 and the second rotating shaft 11 rotate synchronously.

[0024] The second rotating shaft 11 has a sliding cavity, in which a compression spring 15 and a sliding plug 16 are installed. The compression spring 15 is positioned between the hexagonal shaft 14 and the sliding plug 16. An adjusting bolt 17 is threaded into the end of the second rotating shaft 11. The end of the adjusting bolt 17 presses against the sliding plug 16 to compress the compression spring 15. Under the action of the compression spring 15, the friction sleeve 13 and the friction cone 12 are pressed together in a static friction contact state. Rotating the adjusting bolt 17 can adjust the clamping force of the compression spring 15, thereby adjusting the friction force between the friction sleeve 13 and the friction cone 12, so that the coupling can be manually adjusted.

[0025] By setting a coupling to transmit power between gear 7 and swing arm 5, when scraper 6 is blocked by material, gear 7 cannot rotate freely. At this time, gear 7 of part of bucket 4 is meshing with transmission rack 8, and the load on running bucket 4 will increase sharply, which may cause the entire elevator to seize up, which is very unsafe. However, since the coupling transmits torque through static friction between friction cone 12 and friction sleeve 13, if the load exceeds one end value, friction cone 12 and friction sleeve 13 will slip, causing the first rotating shaft 10 and the second rotating shaft 11 to rotate relative to each other, ensuring the normal operation of bucket 4 and greatly improving the stability and safety of the device.

[0026] In this embodiment, refer to Figure 1 Two support rods 18 are rotatably mounted on the surface of the transmission rack 8. The two support rods 18 are arranged in parallel, and the end of the support rod 18 away from the transmission rack 8 is rotatably connected to the inner wall of the material conveying channel 1.

[0027] Several return springs 19 are fixedly installed on the surface of the transmission rack 8. The return springs 19 are arranged in a straight line and abut against the inner wall of the material conveying channel 1. There are two transmission racks 8, which are arranged in parallel and on the same side of the inner wall of the material conveying channel 1. The hopper 4 moves through the area between the two transmission racks 8. At this time, the gears 7 on both sides of the hopper 4 roll along the surface of the two transmission racks 8 respectively. A guide plate 20 is fixedly installed at the end of the transmission rack 8. The end of the guide plate 20 away from the transmission rack 8 is curved, which guides the gear 7 to roll into the transmission rack 8. As the hopper 4 will shake during operation, under the action of the return springs 19, the transmission rack 8 is pushed closer to the gear 7, reducing the gap and ensuring that the gear 7 rolls normally along the surface of the transmission rack 8.

[0028] This bucket elevator inner wall cleaning device uses a scraper 6 installed inside the bucket 4 and a transmission rack 8 installed in the material conveying channel 1. The power of the bucket 4's rotation causes the gear 7 to roll along the surface of the transmission rack 8, thereby driving the scraper 6 to rotate circumferentially and remove the material attached to the arc-shaped bottom surface of the bucket 4. The swing arm 5 rotates to remove the material attached to the inner end face of the bucket 4. This design eliminates the need for a separate power drive mechanism for the scraper 6, preventing interference with the operation of the bucket 4, ensuring the normal material conveying rhythm and work efficiency, and achieving the effect of automatically cleaning the inner wall of the bucket 4. It solves the problems of heavy workload for manual cleaning and incomplete cleaning due to vibration, making it more convenient and efficient to use.

[0029] 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. A bucket elevator inner wall cleaning device, comprising buckets (4) of the bucket elevator, a sprocket (2) rotatably installed in the conveying channel (1) of the bucket elevator, a transmission chain (3) sleeved on the surface of the sprocket (2), and a plurality of buckets (4) fixedly installed on the surface of the transmission chain (3), characterized in that: The inner cavity of the hopper (4) consists of two inner end faces and an arc-shaped bottom surface. A swing arm (5) is rotatably mounted on each of the two inner end faces of the hopper (4). A scraper (6) is fixedly mounted between the two swing arms (5). The swing arm (5) slides along the inner end face of the hopper (4), and the scraper (6) slides along the arc-shaped bottom surface of the hopper (4). Gears (7) are provided on the outer sides of both ends of the hopper (4). The rotation center of the gear (7) and the swing arm (5) are connected by a coupling. A transmission rack (8) is provided in the material conveying channel (1). When the hopper (4) runs with the transmission chain (3), the gear (7) meshes with the transmission rack (8). The gear (7) rolls along the surface of the transmission rack (8), causing the swing arm (5) to rotate. The scraper (6) scrapes off the material attached to the inner wall of the hopper (4) by circumferential motion.

2. The bucket elevator inner wall cleaning device according to claim 1, characterized in that: The coupling includes a mounting sleeve (9), a first rotating shaft (10), and a second rotating shaft (11). The first rotating shaft (10) and the second rotating shaft (11) are both rotatably mounted inside the mounting sleeve (9). The mounting sleeve (9) is fixedly mounted on the end face of the hopper (4). The end of the first rotating shaft (10) away from the second rotating shaft (11) is fixedly connected to the swing arm (5). The end of the second rotating shaft (11) away from the first rotating shaft (10) is fixedly connected to the gear (7).

3. The bucket elevator inner wall cleaning device according to claim 2, characterized in that: The mounting sleeve (9) is provided with a friction cone (12) and a friction sleeve (13). The friction cone (12) is fixedly connected to the first rotating shaft (10). The friction sleeve (13) is sleeved on the surface of the friction cone (12). A hexagonal shaft (14) is fixedly installed at the end of the friction sleeve (13) away from the friction cone (12). The hexagonal shaft (14) is slidably inserted into the second rotating shaft (11). The hexagonal shaft (14) and the second rotating shaft (11) rotate synchronously.

4. The bucket elevator inner wall cleaning device according to claim 3, characterized in that: The second rotating shaft (11) is provided with a sliding cavity, and a compression spring (15) and a sliding plug (16) are provided in the sliding cavity. The compression spring (15) is located between the hexagonal shaft (14) and the sliding plug (16). An adjusting bolt (17) is threaded into the end of the second rotating shaft (11). The end of the adjusting bolt (17) abuts against the sliding plug (16) to compress the compression spring (15). Under the action of the compression spring (15), the friction sleeve (13) and the friction cone (12) are pressed together to form a static friction contact state.

5. A bucket elevator inner wall cleaning device according to any one of claims 1-4, characterized in that: Two support rods (18) are rotatably mounted on the surface of the transmission rack (8). The two support rods (18) are arranged in parallel, and the end of the support rod (18) away from the transmission rack (8) is rotatably connected to the inner wall of the material conveying channel (1).

6. The bucket elevator inner wall cleaning device according to claim 5, characterized in that: A plurality of return springs (19) are fixedly installed on the surface of the transmission rack (8). The plurality of return springs (19) are arranged in a straight line and abut against the inner wall of the material conveying channel (1).

7. The bucket elevator inner wall cleaning device according to claim 6, characterized in that: The number of transmission racks (8) is two. The two transmission racks (8) are arranged in parallel and on the same side of the inner wall of the material conveying channel (1). The hopper (4) moves through the area between the two transmission racks (8). At this time, the gears (7) on both sides of the hopper (4) roll along the surface of the two transmission racks (8).

8. The bucket elevator inner wall cleaning device according to claim 7, characterized in that: A guide plate (20) is fixedly installed at the end of the transmission rack (8), and the end of the guide plate (20) away from the transmission rack (8) has a curved structure.

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