Magnetic driver capable of being cleaned on line

Abstract

The magnetic driver comprises an outer bearing seat, a machine frame and a bearing seat which are fixedly connected, a transmission shaft penetrates through the bearing seat and the machine frame, a full-ceramic bearing is arranged at the upper end in the bearing seat, a radial magnetic suspension bearing is arranged at the lower end in the bearing seat, a magnetic transmission part is arranged at the upper end of the transmission shaft, and a magnetic bearing is arranged at the lower end of the transmission shaft. The upper end of the bearing seat is provided with an inflow port, the lower end of the bearing seat is provided with an outflow port, the upper end in the bearing seat is provided with a cleaning fluid distributor, the cleaning fluid distributor is communicated with the inflow port, and a runner is arranged in the rack; through the combination of the full-ceramic bearing and the radial magnetic suspension bearing which are arranged inside and the circular arc transition design of the internal flow channel, no dead angle of the flow channel is realized, so that the cleaning and sterilization of the driver are effectively realized, the driver can adapt to special industries needing highly clean and sterile environments, and the service life of the driver is prolonged. And the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of transmission technology, and more specifically to a magnetic transmission device that can be cleaned online. Background Technology

[0002] As an indispensable component of mechanical equipment, the stability and reliability of transmission components are crucial to the operation of the entire production line. However, in some specialized industries, such as pharmaceuticals, food, and semiconductors, there are extremely high requirements for the cleanliness and sterility of transmission components. These industries have strict control standards for product quality and the production environment, making the cleaning and sterilization of transmission components a challenging technical problem.

[0003] Traditional actuators often fail to meet the requirements of these specialized industries in terms of design and materials. On the one hand, traditional actuators typically have complex internal structures and are insufficient in terms of cleanliness. During long-term operation, metal actuators are prone to accumulating dirt and bacteria. On the other hand, traditional actuators often have blind spots in their structural design, making it difficult for cleaning fluids and sterilizing agents to reach these areas, resulting in poor cleaning and sterilization effects. Therefore, this invention proposes an online-cleanable magnetic actuator. Summary of the Invention

[0004] The purpose of this invention is to provide a magnetic drive that can be cleaned online. By combining an internal all-ceramic bearing and a radial magnetic levitation bearing, and by using a rounded transition design for the internal flow channel, the flow channel is free of dead angles, thereby effectively achieving the cleaning and sterilization of the drive. This makes it suitable for industries that require highly clean and sterile environments, thus improving the practicality of this invention.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A magnetic drive device capable of online cleaning includes a fixedly connected outer bearing housing, a frame, and a bearing housing. A drive shaft passes through the bearing housing and the frame. The upper end of the bearing housing is equipped with a full ceramic bearing, and the lower end of the bearing housing is equipped with a radial magnetic levitation bearing. The upper end of the drive shaft is equipped with a magnetic drive unit. The upper end of the bearing housing is equipped with an inlet, and the lower end of the bearing housing is equipped with an outlet. The upper end of the bearing housing is equipped with a cleaning fluid distributor, which is connected to the inlet. The frame is equipped with a flow channel, which is connected to both the inlet and the outlet. The flow channel has several rounded inner corners.

[0007] Furthermore, a connecting flange is fixedly provided on the inner side of the outer bearing housing.

[0008] Furthermore, the magnetic drive unit includes an inner magnetic rotor mounted on a drive shaft and an outer magnetic rotor connected to a connecting flange, wherein the inner magnetic rotor and the outer magnetic rotor are magnetically coupled.

[0009] Furthermore, the outer magnetic rotor and the inner magnetic rotor are separated by an isolation sleeve, which encloses the drive shaft.

[0010] Furthermore, the flow channel includes a guide channel and nozzles, the guide channel being distributed circumferentially along the inner wall of the isolation sleeve, and the nozzle spacing gradually decreasing from the inlet to the outlet.

[0011] The beneficial effects of this utility model are:

[0012] The all-ceramic bearing of this invention primarily bears axial loads and features advantages such as wear resistance, high temperature resistance, and no lubrication required. The radial magnetic levitation bearing primarily bears radial loads, utilizing the principle of magnetic levitation to achieve contactless support, reducing wear and contamination under radial loads. The design of the radial magnetic levitation bearing ensures stable operation in harsh environments such as high temperature and high speed, and eliminates the need for lubrication, ensuring the cleanliness of this invention. The inlet, outlet, cleaning fluid distributor, and flow channel, as well as the rounded inner corners, ensure that there are no dead corners inside this invention, facilitating the flow of cleaning fluid and sterilizing agent through the inlet, flow channel, and outlet. This ensures that the cleaning fluid and sterilizing agent are evenly distributed to every corner of this invention, achieving comprehensive cleaning and sterilization. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This utility model Figure 1 Enlarged structural diagram.

[0016] Reference numerals: 1. Drive shaft; 2. Bearing housing; 3. Cleaning fluid distributor; 4. Isolation sleeve; 5. Outer magnetic rotor; 6. Connecting flange; 7. Outer bearing housing; 8. Frame; 9. Inner magnetic rotor; 10. All-ceramic bearing; 11. Inlet; 12. Radial magnetic levitation bearing; 13. Outlet; 14. Flow channel; 15. Guide groove; 16. Nozzle; 17. Rounded inner angle; (The dashed line in the figure indicates the flow direction of the high-temperature cleaning fluid.) Detailed Implementation

[0017] like Figures 1 to 2As shown in this specific embodiment, an online-cleanable magnetic drive includes a fixedly connected outer bearing housing 7, a frame 8, and a bearing housing 2. A drive shaft 1 passes through the bearing housing 2 and the frame 8. An all-ceramic bearing 10 is located at the upper end of the bearing housing 2, and a radial magnetic levitation bearing 12 is located at the lower end. A magnetic drive section is located at the upper end of the drive shaft 1. An inlet 11 is located at the upper end of the bearing housing 2, and an outlet 13 is located at the lower end. A cleaning fluid distributor 3 is located at the upper end of the bearing housing 2 and communicates with the inlet 11. A flow channel 14 is located within the frame 8. 14 is connected to the inlet 11 and the outlet 13 respectively, and the flow channel 14 is provided with several arc-shaped inner corners 17; the inner side of the outer bearing seat 7 is fixedly provided with a connecting flange 6; the magnetic transmission part includes an inner magnetic rotor 9 mounted on the transmission shaft 1 and an outer magnetic rotor 5 connected to the connecting flange 6, and the inner magnetic rotor 9 and the outer magnetic rotor 5 are magnetically coupled; the outer magnetic rotor 5 and the inner magnetic rotor 9 are separated by an isolation sleeve 4, and the isolation sleeve 4 wraps around the transmission shaft 1; the flow channel 14 includes a guide groove 15 and a nozzle 16, the guide groove 15 is distributed circumferentially along the inner wall of the isolation sleeve 4, and the spacing of the nozzles 16 gradually decreases from the inlet to the outlet.

[0018] Through the above configuration, the all-ceramic bearing 10 of this utility model mainly bears axial loads and has advantages such as wear resistance, high temperature resistance, and no need for lubrication. The radial magnetic levitation bearing 12 mainly bears radial loads and uses the principle of magnetic levitation to achieve contactless support, reducing wear and contamination under radial loads. The design of the radial magnetic levitation bearing 12 can ensure stable operation in harsh environments such as high temperature and high speed, and no lubricating oil is required, ensuring the cleanliness of this utility model. The configuration of the inlet 11, outlet 13, cleaning liquid distributor 3, flow channel 14, and arc-shaped inner corner 17 of this utility model ensures that there are no dead corners inside the utility model, which facilitates the cleaning liquid and sterilizing agent to pass through the inlet 11, flow channel 14, and outlet 13. This ensures that the cleaning liquid and sterilizing agent are evenly distributed to all corners of the utility model, achieving all-round cleaning and sterilization.

[0019] Working principle: The cleaning solution and sterilizing agent are injected through the inlet 11. The cleaning solution and sterilizing agent are distributed to various parts of the interior through the cleaning solution distributor 3, and then flow through the nozzle 16 of the flow channel 14 to the guide groove 15. Finally, they flow out through the outlet 13 along the flow direction of the dotted line in the attached figure to achieve the cleaning and sterilization of this utility model.

[0020] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. An online cleanable magnetic drive, characterized by The assembly includes a fixedly connected outer bearing housing (7), a frame (8), and a bearing housing (2). A drive shaft (1) passes through the bearing housing (2) and the frame (8). The upper end of the bearing housing (2) is provided with a full ceramic bearing (10), and the lower end of the bearing housing (2) is provided with a radial magnetic levitation bearing (12). The upper end of the drive shaft (1) is provided with a magnetic drive unit. The upper end of the bearing housing (2) is provided with an inlet (11), and the lower end of the bearing housing (2) is provided with an outlet (13). The upper end of the bearing housing (2) is provided with a cleaning fluid distributor (3), which is connected to the inlet (11). The frame (8) is provided with a flow channel (14), which is connected to the inlet (11) and the outlet (13) respectively. The flow channel (14) is provided with several arc-shaped inner corners (17).

2. An online cleanable magnetic drive according to claim 1, wherein, A connecting flange (6) is fixedly provided on the inner side of the outer bearing housing (7).

3. An online cleanable magnetic drive according to claim 2, wherein, The magnetic drive unit includes an inner magnetic rotor (9) mounted on a drive shaft (1) and an outer magnetic rotor (5) connected to a connecting flange (6), wherein the inner magnetic rotor (9) and the outer magnetic rotor (5) are magnetically coupled.

4. An online cleanable magnetic drive according to claim 3, wherein, The outer magnetic rotor (5) and the inner magnetic rotor (9) are separated by an isolation sleeve (4), which encloses the drive shaft (1).

5. An online cleanable magnetic drive according to claim 4, wherein, The flow channel (14) includes a flow guide groove (15) and a nozzle (16). The flow guide groove (15) is distributed circumferentially along the inner wall of the isolation sleeve (4), and the spacing between the nozzles (16) gradually decreases from the inlet to the outlet.

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