Full-bridge peripheral transmission mud scraper

Abstract

The utility model relates to the technical field of sewage treatment equipment, in particular to a full-bridge type peripheral transmission mud scraper which comprises a mud scraper body, the mud scraper body comprises a working bridge, a driving device, a transmission mechanism, a mud scraping device, a center rotating mechanism and a center support, the working bridge is of a full-bridge type structure and stretches across a sedimentation tank, and the driving device is arranged on the center rotating mechanism. The two ends of the working bridge are respectively supported on supporting rails arranged on the wall of the sedimentation tank; the driving device is arranged at one end of the working bridge and is connected with walking wheels which are arranged at the periphery of the working bridge and run along the wall of the sedimentation tank through a transmission mechanism; the sludge scraping device is fixedly mounted at the bottom of the working bridge; the center support is arranged in the center of the sedimentation tank, the working bridge is connected with the center support through the center rotating mechanism, the driving device is a driving motor, and the mud scraper can meet the mud scraping requirement of the sedimentation tank and guarantee normal operation of a sewage treatment system by optimizing the overall structural design and improving driving, mud scraping and center rotating components.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage treatment equipment, and in particular to a full-bridge peripheral drive sludge scraper. Background Technology

[0002] In industrial and municipal sectors such as wastewater treatment, sedimentation tanks are crucial facilities for achieving solid-liquid separation. Sludge gradually accumulates at the bottom of these tanks; if not cleaned promptly, it can affect the treatment efficiency and operational effectiveness, and may even lead to equipment malfunction. Therefore, the application of sludge scrapers is essential.

[0003] Traditional sludge scrapers have several shortcomings. Some scrapers have simple structures, but their working bridges are often half-bridge or other non-full-bridge structures, resulting in limited coverage and making it difficult to perform comprehensive and efficient sludge scraping of sedimentation tanks. This leads to incomplete cleaning of sludge in some areas of the tank bottom. Furthermore, some scrapers have unreasonable drive and transmission designs. The installation position of the drive unit or the form of the transmission mechanism makes power transmission unstable, prone to transmission failures, and affecting the normal operation of the scraper.

[0004] Regarding sludge scraping devices, traditional scraper blades suffer from poor material and structural design, resulting in poor adhesion to the pool bottom and unsatisfactory scraping performance. Furthermore, they are prone to displacement or damage during operation due to resistance and other factors. Additionally, the lack of an effective elastic reset mechanism means that when the scraper blade encounters significant resistance, it cannot automatically adjust its position, easily leading to damage to the scraper blade or related components.

[0005] Furthermore, the design of the central rotating mechanism also affects the stability and service life of the sludge scraper. If the central rotating mechanism is not tightly connected or rotates inflexibly, the working bridge may experience shaking or jamming during operation, increasing equipment maintenance costs and failure rate. Utility Model Content

[0006] To address some of the problems existing in the prior art, this utility model provides a full-bridge peripheral drive sludge scraper. By optimizing the overall structural design and improving components such as drive, transmission, sludge scraping, and central rotation, this sludge scraper can better meet the sludge scraping needs of sedimentation tanks and ensure the normal operation of the sewage treatment system.

[0007] To achieve the above objectives, this utility model provides a full-bridge peripheral drive sludge scraper, including a scraper body. The scraper body includes a working bridge, a drive device, a transmission mechanism, a scraping device, a central rotating mechanism, and a central support. The working bridge is a full-bridge structure, spanning above the sedimentation tank and equipped with traveling wheels. Both ends of the working bridge are supported on support tracks set on the sedimentation tank wall. The drive device is installed at one end of the working bridge and connected to the traveling wheels, which are arranged around the working bridge and run along the sedimentation tank wall, through the transmission mechanism. The scraping device is fixedly installed at the bottom of the working bridge and scrapes the sludge at the bottom of the sedimentation tank with the circumferential movement of the working bridge. The central support is located at the center of the sedimentation tank, and the working bridge is connected to the central support through the central rotating mechanism. The drive device is a drive motor.

[0008] As a further improvement of this utility model, in order to ensure that the power of the drive device can be accurately and stably transmitted to the traveling wheel and to ensure the normal operation of the working bridge, the transmission mechanism includes a drive sprocket, a driven sprocket and a chain. The drive sprocket is installed on the output shaft of the drive device, the driven sprocket is installed on the wheel axle of the traveling wheel, and the chain is wound between the drive sprocket and the driven sprocket.

[0009] As a further improvement of this utility model, in order to increase the contact area between the traveling wheel and the supporting track, improve the stability and load-bearing capacity of the traveling wheel during operation, and reduce the shaking and wear caused by uneven force on the single row of wheels, the traveling wheel is a double row wheel structure. Each traveling wheel includes multiple wheels arranged along the running direction of the working bridge. The double row wheel structure is respectively set on both sides of the working bridge and cooperates with two supporting tracks on the sedimentation tank wall.

[0010] As a further improvement of this utility model, in order to enable the scraper to better fit the bottom of the sedimentation tank and to more thoroughly scrape off the sludge from the bottom of the tank, the scraper device includes a scraper support and a scraper. The scraper support has an arc-shaped structure, the curvature of which is adapted to the curvature of the bottom of the sedimentation tank, and is fixedly installed at the bottom of the working bridge. One end of the scraper is hinged to the scraper support, and the other end is tilted downward and close to the bottom of the sedimentation tank.

[0011] As a further improvement of this utility model, in order to increase the friction between the scraper and the bottom of the pool, improve the scraping efficiency, and prevent the sludge from slipping during the scraping process, the scraper is made of rubber material, and the surface of the scraper in contact with the bottom of the pool is provided with multiple raised anti-slip particles; an elastic reset device is provided at the hinge of the scraper and the scraper support.

[0012] As a further improvement of this utility model, in order to enable the scraper blade to deform when subjected to external force and realize the elastic reset function of the scraper blade, the elastic reset device includes a torsion spring. The torsion spring is installed at the hinge between the scraper blade and the scraper blade bracket and is equipped with a fixing sleeve. The torsion spring is also equipped with a connecting pin, one end of which is connected to the scraper blade.

[0013] As a further improvement of this utility model, in order to enable the working bridge to rotate stably around the central axis and reduce friction and resistance during the rotation process, the central rotation mechanism includes a central shaft, a bearing and a rotating sleeve. The central shaft is fixedly installed on the central support, the rotating sleeve is sleeved on the central shaft and connected to the central shaft through the bearing, and the working bridge is fixedly connected to the rotating sleeve.

[0014] When this utility model is in operation, the drive device starts to run, and its output shaft drives the drive sprocket to rotate. The drive sprocket transmits power to the driven sprocket installed on the wheel axle of the walking wheel through the chain. Due to the tight engagement and transmission effect of the chain, the power is transmitted stably and efficiently, enabling the walking wheel to obtain running power.

[0015] The traveling wheels have a double-row wheel structure, which is set on both sides of the working bridge and closely cooperates with two support rails on the sedimentation tank wall. Under power drive, the traveling wheels start to roll along the support rails, driving the full-bridge working bridge to make circular motion. The double-row wheel structure increases the contact area with the rails, improves the stability and load-bearing capacity of operation, reduces swaying and deviation, and ensures that the working bridge runs smoothly and steadily.

[0016] A sludge scraper is fixedly installed at the bottom of the working bridge. As the working bridge rotates, the sludge scraper begins to scrape away the sludge at the bottom of the sedimentation tank. The scraper plate support has an arc-shaped structure, which is adapted to the curvature of the sedimentation tank bottom, providing stable support and correct scraping direction for the scraper plate. One end of the scraper plate is hinged to the scraper plate support, and the other end is tilted downward and close to the bottom of the sedimentation tank. During operation, the scraper plate always maintains close contact with the tank bottom under the action of the elastic reset device. When the scraper plate encounters unevenness or large resistance on the tank bottom, the torsion spring will deform, causing the scraper plate to rise and adjust its position to avoid damage. After the external force disappears, it will automatically return to its original shape and continue to scrape the sludge close to the tank bottom.

[0017] Meanwhile, the working bridge is connected to a central support located at the center of the sedimentation tank via a central rotating mechanism. The central rotating mechanism includes a central shaft, bearings, and a rotating sleeve. The central shaft is fixedly installed on the central support, and the rotating sleeve is fitted onto the central shaft and connected to the central shaft via the bearings. The working bridge is fixedly connected to the rotating sleeve. This structure enables the working bridge to rotate stably around the central shaft, reducing friction and resistance during rotation. This ensures that the sludge scraping device can accurately and efficiently complete the scraping operation of the sludge at the bottom of the sedimentation tank according to the predetermined trajectory, thus guaranteeing the normal operation and treatment effect of the sedimentation tank.

[0018] The beneficial effects of this utility model are as follows:

[0019] Comprehensive and efficient sludge scraping: The full-bridge working bridge spans above the sedimentation tank, and with the help of the traveling wheels and support rails, it can achieve circular motion, covering all areas of the bottom of the sedimentation tank, effectively scraping away sludge and avoiding dead spots in sludge scraping. Compared with traditional sludge scrapers, it greatly improves the comprehensiveness and efficiency of sludge scraping, ensuring the solid-liquid separation effect of the sedimentation tank.

[0020] Stable and reliable transmission: Utilizing a sprocket and chain drive mechanism, the driving sprocket transmits power from the drive unit to the driven sprocket via a chain, which in turn drives the traveling wheels. This transmission method features a simple structure, high load-bearing capacity, and high transmission efficiency. It can accurately transmit power, reduce power loss, ensure stable operation of the working bridge, and lower equipment failure rate.

[0021] Smooth and safe operation: The double-row wheel structure, in conjunction with two supporting rails, increases the contact area with the rails, improves the stability and load-bearing capacity of the wheels, reduces swaying and deviation, makes the working bridge run more smoothly, ensures the safe operation of sludge scraping, and extends the service life of the equipment.

[0022] Highly efficient sludge scraping: The arc-shaped sludge scraper bracket is adapted to the curvature of the sedimentation tank bottom. One end of the scraper is hinged and the other end is tilted to fit tightly against the tank bottom. It is made of rubber and has anti-slip particles. The elastic reset device ensures that the scraper always fits tightly against the tank bottom, which can efficiently scrape off sludge, reduce residue, and improve the quality of sludge scraping.

[0023] Stable and precise rotation: The central rotating mechanism connects the working bridge and the central support through a central shaft, bearings and a rotating sleeve, enabling the working bridge to rotate stably around the central shaft, reducing frictional resistance, ensuring that the sludge scraping device scrapes sludge accurately along a predetermined trajectory, and improving the accuracy and reliability of equipment operation. Attached Figure Description

[0024] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings:

[0025] Figure 1 This is a structural diagram of the present invention.

[0026] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0027] Figure 3 for Figure 1 Enlarged view of point B in the middle.

[0028] Figure 4 for Figure 1 Enlarged view of point C in the middle.

[0029] Figure 5 This is a motion diagram of the present invention.

[0030] The components include: 1. Working bridge; 2. Drive device; 3. Transmission mechanism; 4. Scraping device; 5. Central rotating mechanism; 6. Central support; 7. Traveling wheel; 8. Drive sprocket; 9. Driven sprocket; 10. Scraper bracket; 11. Scraper; 12. Elastic reset device; 13. Torsion spring; 14. Fixed sleeve; 15. Connecting pin; 16. Central shaft; 17. Bearing; 18. Rotating sleeve; and 19. Anti-slip particles. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solutions in this application, the following description is provided in conjunction with the appendix. Figure 1-5 The present invention will be further described below. The following embodiments are only used to illustrate the technical solution of the present invention more clearly, and should not be used to limit the protection scope of the present invention.

[0032] like Figure 1-5 The illustrated full-bridge peripheral drive sludge scraper includes a scraper body, which comprises a working bridge 1, a drive device 2, a transmission mechanism 3, a scraping device 4, a central rotating mechanism 5, and a central support 6. The working bridge 1 is a full-bridge structure that spans across the sedimentation tank and is equipped with traveling wheels 7. Both ends of the working bridge 1 are supported on support tracks set on the sedimentation tank wall. The drive device 2 is installed at one end of the working bridge 1 and is connected to the traveling wheels 7, which are arranged around the working bridge 1 and run along the sedimentation tank wall, through the transmission mechanism 3. The scraping device 4 is fixedly installed at the bottom of the working bridge 1 and scrapes the sludge at the bottom of the sedimentation tank with the circumferential movement of the working bridge 1. The central support 6 is located at the center of the sedimentation tank, and the working bridge 1 is connected to the central support 6 through the central rotating mechanism 5. The drive device 2 is a drive motor.

[0033] The transmission mechanism 3 includes a drive sprocket 8, a driven sprocket 9, and a chain. The drive sprocket 8 is mounted on the output shaft of the drive device 2, the driven sprocket 9 is mounted on the axle of the traveling wheel 7, and the chain is wound between the drive sprocket 8 and the driven sprocket 9.

[0034] The traveling wheel 7 has a double-row wheel structure. Each traveling wheel 7 includes multiple wheels arranged along the running direction of the working bridge 1. The double-row wheel structure is respectively set on both sides of the working bridge 1 and cooperates with two support tracks on the sedimentation tank wall.

[0035] The sludge scraping device 4 includes a sludge scraper bracket 10 and a sludge scraper 11. The sludge scraper bracket 10 has an arc-shaped structure, and its arc is adapted to the arc of the bottom of the sedimentation tank. It is fixedly installed at the bottom of the working bridge 1. One end of the sludge scraper 11 is hinged to the sludge scraper bracket 10, and the other end is tilted downward and close to the bottom of the sedimentation tank.

[0036] The scraper blade 11 is made of rubber, and the surface of the scraper blade 11 that contacts the bottom of the pool is provided with a number of raised anti-slip particles 19; an elastic reset device 12 is provided at the hinge of the scraper blade 11 and the scraper blade support 10.

[0037] The elastic reset device 12 includes a torsion spring 13, which is installed at the hinge between the scraper blade 11 and the scraper blade bracket 10 and is fitted with a fixing sleeve 14. The torsion spring 13 is also fitted with a connecting pin 15, one end of which is connected to the scraper blade 11.

[0038] The central rotating mechanism 5 includes a central shaft 16, a bearing 17, and a rotating sleeve 18. The central shaft 16 is fixedly installed on the central support 6. The rotating sleeve 18 is sleeved on the central shaft 16 and connected to the central shaft 16 through the bearing 17. The working bridge 1 is fixedly connected to the rotating sleeve 18.

[0039] When this utility model is in operation, the drive device 2 starts to run, and its output shaft drives the drive sprocket 8 to rotate. The drive sprocket 8 transmits power to the driven sprocket 9 installed on the axle of the walking wheel 7 through the chain. Due to the tight engagement and transmission of the chain, the power is transmitted stably and efficiently, enabling the walking wheel 7 to obtain running power.

[0040] The traveling wheels 7 have a double-row wheel structure and are respectively set on both sides of the working bridge 1, which are closely matched with the two support tracks on the sedimentation tank wall. Under the power drive, the traveling wheels 7 start to roll along the support tracks, driving the full-bridge working bridge 1 to make circular motion. The double-row wheel structure increases the contact area with the track, improves the stability and load-bearing capacity of the operation, reduces swaying and deviation, and ensures that the working bridge 1 runs smoothly and steadily.

[0041] A sludge scraper 4 is fixedly installed at the bottom of the working bridge 1. As the working bridge 1 moves in a circular motion, the sludge scraper 4 begins to scrape away the sludge at the bottom of the sedimentation tank. The sludge scraper support 10 has an arc-shaped structure that matches the curvature of the sedimentation tank bottom, providing stable support and the correct scraping direction for the sludge scraper 11. One end of the sludge scraper 11 is hinged to the sludge scraper support 10, and the other end is tilted downwards and pressed against the bottom of the sedimentation tank. During operation, the sludge scraper 11 maintains close contact with the tank bottom under the action of the elastic reset device 12. When the sludge scraper 11 encounters unevenness or significant resistance at the bottom of the tank, the torsion spring 13 deforms, causing the sludge scraper 11 to rise and adjust its position to avoid damage. After the external force disappears, it automatically returns to its original shape and continues to scrape sludge against the tank bottom.

[0042] Meanwhile, the working bridge 1 is connected to the central support 6 located at the center of the sedimentation tank via the central rotating mechanism 5. The central rotating mechanism 5 includes a central shaft 16, a bearing 17, and a rotating sleeve 18. The central shaft 16 is fixedly installed on the central support 6, and the rotating sleeve 18 is sleeved on the central shaft 16 and connected to the central shaft 16 via the bearing 17. The working bridge 1 is fixedly connected to the rotating sleeve 18. This structure enables the working bridge 1 to rotate stably around the central shaft 16, reducing friction and resistance during rotation. This ensures that the sludge scraping device 4 can accurately and efficiently complete the scraping operation of the sludge at the bottom of the sedimentation tank according to the predetermined trajectory, thus ensuring the normal operation and treatment effect of the sedimentation tank.

[0043] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A full-bridge peripheral drive sludge scraper, comprising a scraper body, characterized in that, The sludge scraper body includes a working bridge (1), a drive device (2), a transmission mechanism (3), a sludge scraping device (4), a central rotating mechanism (5), and a central support (6). The working bridge (1) is a full-bridge structure that spans across the sedimentation tank and is equipped with traveling wheels (7). Both ends of the working bridge (1) are supported on the support rails set on the sedimentation tank wall. The drive device (2) is installed at one end of the working bridge (1) and is connected to the traveling wheels (7) set around the working bridge (1) and running along the sedimentation tank wall through the transmission mechanism (3). The sludge scraping device (4) is fixedly installed at the bottom of the working bridge (1) and scrapes the sludge at the bottom of the sedimentation tank with the circumferential movement of the working bridge (1). The central support (6) is set at the center of the sedimentation tank. The working bridge (1) is connected to the central support (6) through the central rotating mechanism (5). The drive device (2) is a drive motor.

2. The full-bridge peripheral drive sludge scraper according to claim 1, characterized in that, The transmission mechanism (3) includes a drive sprocket (8), a driven sprocket (9) and a chain. The drive sprocket (8) is mounted on the output shaft of the drive device (2), the driven sprocket (9) is mounted on the axle of the traveling wheel (7), and the chain is wound between the drive sprocket (8) and the driven sprocket (9).

3. The full-bridge peripheral drive sludge scraper according to claim 1, characterized in that, The walking wheel (7) is a double-row wheel structure. Each walking wheel (7) includes multiple wheels arranged along the running direction of the working bridge (1). The double-row wheel structure is respectively set on both sides of the working bridge (1) and cooperates with two support tracks on the sedimentation tank wall.

4. A full-bridge peripheral drive scraper according to claim 1, characterized in that, The sludge scraping device (4) includes a sludge scraper bracket (10) and a sludge scraper (11). The sludge scraper bracket (10) is an arc-shaped structure, and its curvature is adapted to the curvature of the bottom of the sedimentation tank. It is fixedly installed at the bottom of the working bridge (1). One end of the sludge scraper (11) is hinged to the sludge scraper bracket (10), and the other end is tilted downward and close to the bottom of the sedimentation tank.

5. A full-bridge peripheral drive scraper according to claim 4, characterized in that, The scraper (11) is made of rubber. The surface of the scraper (11) in contact with the bottom of the pool is provided with a number of raised anti-slip particles (19). An elastic reset device (12) is provided at the hinge of the scraper (11) and the scraper bracket (10).

6. A full-bridge peripheral drive scraper according to claim 5, characterized in that, The elastic reset device (12) includes a torsion spring (13), which is installed at the hinge of the scraper blade (11) and the scraper blade bracket (10) and is fitted with a fixing sleeve (14). The torsion spring (13) is also fitted with a connecting pin (15), one end of which is connected to the scraper blade (11).

7. A full-bridge peripheral drive scraper according to claim 1, characterized in that, The central rotating mechanism (5) includes a central shaft (16), a bearing (17) and a rotating sleeve (18). The central shaft (16) is fixedly installed on the central support (6). The rotating sleeve (18) is sleeved on the central shaft (16) and connected to the central shaft (16) through the bearing (17). The working bridge (1) is fixedly connected to the rotating sleeve (18).

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