Rotary tooth rake bar screen machine
By using a motor-driven transmission system and a toothed design, combined with a cleaning mechanism, the problem of insufficient clamping mechanism design in the rake bar screen cleaner is solved, thereby improving the stability and cleaning capacity of the equipment and meeting the high-efficiency interception requirements of sewage treatment.
Patent Information
- Application Number
- CN202520163878.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-24
AI Technical Summary
The existing toothed rake bar screen has an inadequate clamping mechanism design, resulting in poor performance and equipment stability in wastewater environments, and failing to meet the requirements for long-term stable operation.
The transmission system is driven by an electric motor. The design incorporates a toothed and spring mechanism. The protection of the rake is achieved through the contact between the pole gear and the toothed gear. A cleaning mechanism is also installed on the transmission shaft to remove debris, thereby enhancing the stability and cleaning capacity of the equipment.
It improves the cleaning effect and equipment stability of the rake bar screen, ensuring long-term stable operation in sewage environments, and has an effective cleaning function.
Smart Images

Figure CN223779980U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of toothed rake bar screen cleaning machines, and in particular to a rotary toothed rake bar screen cleaning machine. Background Technology
[0002] With the rapid development of industrialization and urbanization, a large amount of industrial wastewater and domestic sewage are generated, causing serious pollution to water resources. In order to protect the water environment and achieve the sustainable use of water resources, the demand for sewage treatment is becoming increasingly urgent. As a key piece of equipment in the sewage treatment process, the rotary rake bar screen can efficiently intercept and remove solid impurities and suspended solids in sewage at the front end of sewage treatment, providing good conditions for subsequent sewage treatment processes and reducing the load on subsequent treatment units. Wastewater from different industries has different characteristics and pollutant compositions. For example, wastewater from the textile, food processing, papermaking, and leather industries contains a large amount of fiber, organic matter, and solid particulate impurities. The rotary rake bar screen can effectively intercept impurities of various shapes and sizes by adjusting the gap and shape parameters of the rakes according to the characteristics of different sewage, thus meeting the sewage treatment needs of different industries.
[0003] Currently, the toothed rake bar screen cleaners on the market mainly consist of a drive unit and toothed rakes. In the early stages of the development of rotary toothed rake bar screen cleaners, the design concept mainly focused on achieving basic decontamination functions, emphasizing the rotation of the toothed rakes and the interception of the core components and actions of the bars. Insufficient consideration was given to the details of the gripping and stabilization between the toothed rakes and impurities. Due to the limited technical level and understanding at the time, the importance of the gripping mechanism for improving the decontamination effect and equipment stability was not fully realized. Early manufacturing processes and materials could not meet the design requirements of the gripping mechanism. There was a lack of high-strength, high-toughness and corrosion-resistant materials to manufacture the gripping components, making it impossible to guarantee long-term stable operation in sewage environments. The manufacturing process was not precise enough, making it difficult to achieve the precise actions and force control required by the gripping mechanism, resulting in poor performance or poor reliability of the gripping mechanism. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a rotary toothed rake bar screen cleaner, which aims to improve the problem that the existing technology was limited by the level of technology and understanding at the time, and did not fully realize the importance of the clamping mechanism for improving the cleaning effect and equipment stability.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a rotary rake bar screen cleaning machine, comprising a transmission box and a fixed box. A motor is fixedly connected to the inner wall of the transmission box, and a second transmission shaft is fixedly connected to the output end of the motor. A circular plate is fixedly connected to the front side of the outer wall of the second transmission shaft. Rotating shafts are rotatably connected to the upper and lower ends of the inner wall of the circular plate. Clamping teeth are fixedly connected to the outer wall of the rotating shaft. Springs are fixedly connected between adjacent clamping teeth. The other ends of multiple springs are fixedly connected to the inner wall of the circular plate. A pole gear is fixedly connected to the middle of the inner wall of the transmission box. The inner wall of the pole gear contacts the clamping teeth. A rake is drivenly connected to the rear side of the outer wall of the second transmission shaft. A cleaning mechanism is provided on the bottom outer wall of the second transmission shaft near the front side. The cleaning mechanism is used to clean the bar screen.
[0006] As a further description of the above technical solution:
[0007] The cleaning mechanism includes a second gear, the inner wall of which is fixedly connected to the outer wall of a second transmission shaft near the front. The outer wall of the second gear is meshed with a first gear, the inner wall of the first gear is fixedly connected to a first transmission shaft, the rear side of the outer wall of the first transmission shaft is fixedly connected to a fixed shaft, and the front and rear sides of the outer wall of the fixed shaft are both fixedly connected with nail strips. High-pressure nozzles are fixedly connected to the top left and right sides of the inner wall of the fixed box.
[0008] As a further description of the above technical solution:
[0009] A controller is fixedly connected to the center of the top surface of the transmission box, and the controller is electrically connected to the motor.
[0010] As a further description of the above technical solution:
[0011] The top four corners of the transmission box are fixedly connected with soft pads, and the left and right sides of the outer wall of the transmission box are fixedly connected with protective pads.
[0012] As a further description of the above technical solution:
[0013] Protective plates are fixedly connected to the top left and right sides of the outer wall of the fixed box, and multiple protective plates are symmetrically arranged on the top left and right sides of the fixed box.
[0014] As a further description of the above technical solution:
[0015] The outer wall of the fixed box is fixedly connected to handles on both the front and rear sides, and the outer walls of the multiple handles are fixedly connected to anti-slip sleeves.
[0016] As a further description of the above technical solution:
[0017] Protective strips are fixedly connected to both the left and right sides of the outer wall of the fixed box, and multiple protective strips are symmetrically arranged on the left and right sides of the outer wall of the fixed box.
[0018] As a further description of the above technical solution:
[0019] A transmission box is fixedly connected to the rear side of the outer wall of the transmission box, and protective strips are fixedly connected to the front and rear sides of the top of the transmission box.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, a motor is fixedly connected to the inner wall of the transmission box, and a second transmission shaft is fixedly connected to the output end of the motor. The second transmission shaft can drive the toothed rake through the drive of the motor. In order to prevent the toothed rake from malfunctioning due to reverse rotation, a circular plate is fixedly connected to the outer side of the outer wall of the second transmission shaft. At the same time, a rotating shaft is fixedly rotatably connected to the upper and lower ends of the inner wall of the circular plate. The locking teeth can quickly engage with the inner wall of the pole gear, thereby protecting the equipment.
[0022] 2. In this utility model, in order to better clean the rake, a second gear is fixedly connected to the middle of the outer wall of the second transmission shaft, and a first gear is meshed with the outer wall of the second gear. The first transmission shaft is fixedly connected to the inner wall of the first gear, and a fixed shaft is fixedly connected to the middle of the outer wall of the first transmission shaft. At the same time, multiple sets of nail bars are fixedly connected to the front and rear sides of the outer wall of the fixed shaft. The nail bars can clean the garbage on the rake when rotating, and are used to cooperate with the nail bars to clean the garbage on the rake, thereby meeting the usage requirements. Attached Figure Description
[0023] Figure 1 This is a perspective view of the front side of the transmission box of the rotary toothed rake bar screen cleaner proposed in this utility model.
[0024] Figure 2 This is a partial structural diagram of the toothed rake of the rotary toothed rake bar screen cleaner proposed in this utility model;
[0025] Figure 3 This is a partial structural diagram of the motor of the rotary toothed rake bar screen cleaner proposed in this utility model;
[0026] Figure 4 This is a partial structural diagram of the pole gear of the rotary toothed rake bar screen cleaner proposed in this utility model;
[0027] Figure 5 This is a partial structural diagram of the gear one of the rotary toothed rake bar screen cleaner proposed in this utility model.
[0028] Legend:
[0029] 1. Transmission box; 2. Cleaning mechanism; 201. Gear 1; 202. Transmission shaft 1; 203. Fixed shaft; 204. Nail strip; 205. Fixed box; 206. High-pressure nozzle; 207. Gear 2; 3. Motor; 4. Transmission shaft 2; 5. Circular plate; 6. Pole gear; 7. Spring; 8. Rotating shaft; 9. Clamping gear; 10. Toothed rake; 11. Transmission box; 12. Protective strip; 13. Protective plate; 14. Handle; 15. Anti-slip sleeve; 16. Protective pad; 17. Soft pad; 18. Protective strip; 19. Controller. Detailed Implementation
[0030] 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.
[0031] Please see the appendix Figure 2 - Appendix Figure 4 An embodiment of this utility model provides a rotary toothed rake bar screen cleaner, including a transmission box 1 and a fixed box 205. A motor 3 is fixedly connected to the inner wall of the transmission box 1. A transmission shaft 4 is fixedly connected to the output end of the motor 3. A circular plate 5 is fixedly connected to the front side of the outer wall of the transmission shaft 4. A rotating shaft 8 is rotatably connected to the upper and lower ends of the inner wall of the circular plate 5. A locking tooth 9 is fixedly connected to the outer wall of the rotating shaft 8. A spring 7 is fixedly connected between adjacent locking teeth 9. The other end of multiple springs 7 is fixedly connected to the inner wall of the circular plate 5. A spring 7 is fixedly connected between two adjacent locking teeth 9, and the other end of these springs 7 is fixedly connected to the inner wall of the circular plate 5. A pole gear 6 is fixedly connected to the middle of the inner wall of the transmission box 1. The inner wall of the pole gear 6 is in contact with the locking teeth 9. A toothed rake 10 is drivenly connected to the rear side of the outer wall of the transmission shaft 4. A cleaning mechanism 2 is provided on the bottom outer wall of the transmission shaft 4 near the front side. The cleaning mechanism 2 is used to clean the bar screen.
[0032] Specifically, a motor 3 is fixedly connected to the inner wall of the transmission box 1. The output end of the motor 3 is connected to the transmission shaft 4. A circular plate 5 is fixedly connected to the front side of the outer wall of the transmission shaft 4. The upper and lower ends of the inner wall of the circular plate 5 are rotatably connected to the rotating shaft 8. The outer walls of these rotating shafts 8 are fixedly connected to the retaining teeth 9. In addition, a pole gear 6 is fixedly connected to the middle of the inner wall of the transmission box 1. The inner wall of the pole gear 6 is in close contact with the retaining teeth 9. The rear side of the outer wall of the transmission shaft 4 is connected to the toothed rake 10. A cleaning mechanism 2 is provided at the bottom of the outer wall of the transmission shaft 4 near the front side. The main function of this cleaning mechanism 2 is to effectively clean the screen.
[0033] Please see the appendix Figure 3 - Appendix Figure 5 The cleaning mechanism 2 includes a gear 207, the inner wall of which is fixedly connected to the outer wall of the transmission shaft 4 near the front. The outer wall of the gear 207 is meshed with a gear 201. The inner wall of the gear 201 is fixedly connected to the transmission shaft 202. The rear part of the outer wall of the transmission shaft 202 is fixedly connected to a sturdy fixed shaft 203. This fixed shaft 203 not only provides additional support for the transmission shaft 202, but also ensures the stability of the transmission system. The rear part of the outer wall of the transmission shaft 202 is fixedly connected to the fixed shaft 203. The front and rear sides of the outer wall of the fixed shaft 203 are fixedly connected to nails 204. The top left and right sides of the inner wall of the fixed box 205 are fixedly connected to high-pressure nozzles 206.
[0034] Specifically, the outer wall of gear 207 is connected to gear 1 201 by meshing, ensuring smooth power transmission between the two gears. The inner wall of gear 1 201 is firmly fixed to the drive shaft 1 202. This design allows gear 1 201 to effectively drive the drive shaft 1 202 to rotate. The front and rear sides of the outer wall of the fixed shaft 203 are equipped with nail strips 204. These nail strips 204 may be used to fix other components or provide additional support points. The top left and right sides of the inner wall of the fixed box 205 are fixedly connected with high-pressure nozzles 206. These high-pressure nozzles 206 can provide a powerful water flow for cleaning or cooling purposes.
[0035] Please see the appendix Figure 1 - Appendix Figure 3 A controller 19 is fixedly connected to the center of the top surface of the transmission box 1. The controller 19 is electrically connected to the motor 3. Soft pads 17 are fixedly connected to the four corners of the top of the transmission box 1. Protective pads 16 are fixedly connected to the left and right sides of the outer wall of the transmission box 1. In order to further protect the outer wall of the transmission box 1, the left and right sides are designed to be fixedly connected with protective pads 16. These protective pads 16 can not only prevent the outer wall from being scratched and impacted, but also increase the overall aesthetics of the transmission box 1. Protective plates 13 are fixedly connected to the left and right sides of the top of the outer wall of the fixed box 205. Multiple protective plates 13 are symmetrically treated on the left and right sides of the top of the fixed box 205.
[0036] Specifically, a controller 19 is fixedly connected to the center of the top surface of the transmission box 1. The controller 19 is electrically connected to the motor 3 to ensure the normal operation and control of the transmission box 1. To increase the stability and protection of the transmission box 1, soft pads 17 are fixedly connected to the four corners of its top. These soft pads 17 can effectively absorb vibration and impact, protecting the transmission box 1 from damage during transportation or use. In the design of the fixed box 205, protective plates 13 are fixedly connected to the top left and right sides of its outer wall. These protective plates 13 not only enhance the structural strength of the fixed box 205, but also prevent external objects from directly impacting the internal equipment. It is worth noting that multiple protective plates 13 are symmetrically arranged on the top left and right sides of the fixed box 205. This design not only makes the appearance of the fixed box 205 more harmonious, but also ensures that the force distribution is more uniform when subjected to impact, thereby improving the stability and safety of the entire device.
[0037] Please see the appendix Figure 1 - Appendix Figure 3 Handles 14 are fixedly connected to the front and rear sides of the outer wall of the fixed box 205. Anti-slip sleeves 15 are fixedly connected to the outer walls of multiple handles 14. Protective strips 12 are fixedly connected to the left and right sides of the outer wall of the fixed box 205. Multiple protective strips 12 are symmetrically arranged on the left and right sides of the outer wall of the fixed box 205. In addition, protective strips 12 are fixedly connected to the left and right sides of the outer wall of the fixed box 205. These protective strips 12 not only serve a decorative purpose, but also protect the outer wall from scratches or impacts during the movement or transportation of the fixed box 205. A transmission box 11 is fixedly connected to the rear side of the outer wall of the transmission box 1. Protective strips 18 are fixedly connected to the front and rear sides of the top of the transmission box 11.
[0038] Specifically, handles 14 are fixedly connected to the front and rear sides of the outer wall of the described fixed box 205. These handles 14 are designed to facilitate users to grip and move the fixed box 205. To increase the comfort and safety of gripping, anti-slip sleeves 15 are fixedly connected to the outer walls of multiple handles 14. Multiple protective strips 12 are symmetrically arranged on the left and right sides of the outer wall of the fixed box 205. Furthermore, a transmission box 11 is fixedly connected to the rear side of the outer wall of the transmission box 1. The transmission box 11 is a component used to house the transmission mechanism to ensure the smoothness and stability of the transmission process. In order to prevent accidental damage to the transmission box 11 during use, protective strips 18 are fixedly connected to the front and rear sides of the top of the transmission box 11. These protective strips 18 can also provide additional protection to ensure that the top of the transmission box 11 is properly protected in various working environments.
[0039] Working principle: A motor 3 is fixedly connected to the inner wall of the transmission box 1, and a transmission shaft 4 is fixedly connected to the output end of the motor 3. The transmission shaft 4 can drive the rake 10 through the drive of the motor 3. In order to prevent the rake 10 from malfunctioning due to reverse rotation, a circular plate 5 is fixedly connected to the outer side of the outer wall of the transmission shaft 4. A rotating shaft 8 is fixedly rotatably connected to the upper and lower ends of the inner wall of the circular plate 5. A locking tooth 9 is fixedly connected to the outer wall of the rotating shaft 8. Through the elasticity of the spring 7 fixed at the bottom of the locking tooth 9, the locking tooth 9 can contact the inner wall of the pole gear 6. When the transmission shaft 4 reverses due to the malfunction of the rake 10, the locking tooth 9 can quickly engage on the inner wall of the pole gear 6, thereby protecting the equipment.
[0040] To better clean the rake 10, a gear 207 is fixedly connected to the middle of the outer wall of the transmission shaft 2 4. A gear 201 is meshed with the outer wall of the gear 207. A transmission shaft 202 is fixedly connected to the inner wall of the gear 201. A fixed shaft 203 is fixedly connected to the middle of the outer wall of the transmission shaft 202. Multiple sets of spikes 204 are fixedly connected to the front and rear sides of the outer wall of the fixed shaft 203. The spikes 204 can clean the garbage on the rake 10 when rotating. A fixed box 205 is fixedly connected to the top right side of the transmission box 11. High-pressure nozzles 206 are fixedly connected to the bottom left and right ends of the inner wall of the fixed box 205 to work with the spikes 204 to clean the garbage on the rake 10, thus meeting the usage requirements.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A rotary rake bar screen cleaner, comprising a transmission box (1) and a fixed box (205), characterized in that: A motor (3) is fixedly connected to the inner wall of the transmission box (1). A transmission shaft (4) is fixedly connected to the output end of the motor (3). A circular plate (5) is fixedly connected to the front side of the outer wall of the transmission shaft (4). A rotating shaft (8) is rotatably connected to the upper and lower ends of the inner wall of the circular plate (5). A locking tooth (9) is fixedly connected to the outer wall of the rotating shaft (8). A spring (7) is fixedly connected between adjacent locking teeth (9). The other end of multiple springs (7) is fixedly connected to the inner wall of the circular plate (5). A pole gear (6) is fixedly connected to the middle of the inner wall of the transmission box (1). The inner wall of the pole gear (6) is in contact with the locking tooth (9). A toothed rake (10) is connected to the rear side of the outer wall of the transmission shaft (4). A cleaning mechanism (2) is provided on the bottom outer wall of the transmission shaft (4) near the front side. The cleaning mechanism (2) is used to clean the grille.
2. The rotary rake bar screen cleaner according to claim 1, characterized in that: The cleaning mechanism (2) includes a second gear (207), the inner wall of which is fixedly connected to the outer wall of the second transmission shaft (4) near the front side. The outer wall of the second gear (207) is meshed with a first gear (201). The inner wall of the first gear (201) is fixedly connected to a first transmission shaft (202). The rear side of the outer wall of the first transmission shaft (202) is fixedly connected to a fixed shaft (203). The front and rear sides of the outer wall of the fixed shaft (203) are fixedly connected to nails (204). The top left and right sides of the inner wall of the fixed box (205) are fixedly connected to high-pressure nozzles (206).
3. The rotary rake bar screen cleaner according to claim 1, characterized in that: A controller (19) is fixedly connected to the center of the top surface of the transmission box (1), and the controller (19) is electrically connected to the motor (3).
4. The rotary rake bar screen cleaner according to claim 1, characterized in that: The transmission box (1) has soft pads (17) fixedly connected to the four corners of the top, and protective pads (16) fixedly connected to the left and right sides of the outer wall of the transmission box (1).
5. The rotary rake bar screen cleaner according to claim 1, characterized in that: Protective plates (13) are fixedly connected to the top left and right sides of the outer wall of the fixed box (205), and the multiple protective plates (13) are symmetrically arranged on the top left and right sides of the fixed box (205).
6. The rotary rake bar screen cleaner according to claim 1, characterized in that: The front and rear sides of the outer wall of the fixed box (205) are fixedly connected with handles (14), and the outer walls of the multiple handles (14) are fixedly connected with anti-slip sleeves (15).
7. The rotary rake bar screen cleaner according to claim 1, characterized in that: Protective strips (12) are fixedly connected to the left and right sides of the outer wall of the fixed box (205), and the multiple protective strips (12) are symmetrically arranged on the left and right sides of the outer wall of the fixed box (205).
8. The rotary rake bar screen cleaner according to claim 1, characterized in that: A transmission box (11) is fixedly connected to the rear side of the outer wall of the transmission box (1), and protective strips (18) are fixedly connected to the front and rear sides of the top of the transmission box (11).