Centrifugal pump with pump cover and support integrated structure

Abstract

The utility model relates to the technical field of centrifugal pumps, and discloses a centrifugal pump with a pump cover and support integrated structure, which comprises a hemispherical cavity, the inner wall of the hemispherical cavity is fixedly connected with two supporting ribs, and the upper surfaces of the two supporting ribs are fixedly connected with a motor supporting end face together. A spigot and four connecting holes are formed in the motor supporting end face, a plurality of mounting holes are formed in the inner wall of the hemispherical cavity, an exhaust plug screw mounting position is fixedly connected to the outer surface of the hemispherical cavity, a mechanical seal mounting position is arranged on the outer surface of the hemispherical cavity, and an annular groove is formed in the hemispherical cavity. The integrated structure of the pump cover and the support is adopted, excessive threaded connection during assembly of the whole pump can be reduced, due to the fact that the integrated structure of the pump cover and the support is compact in structure, light in weight, small in machining face, more material-saving in production, more time-saving in machining and higher in efficiency, the integrated structure of the pump cover and the support is adopted, production efficiency of the whole pump can be effectively improved, and production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal pump technology, specifically to a centrifugal pump with an integrated pump cover and support structure. Background Technology

[0002] Centrifugal pumps are fluid transport devices widely used in industrial and civil fields. They use the rotation of an impeller to generate centrifugal force, drawing liquid from the center and discharging it from the edge, thus achieving liquid transport. The working principle of centrifugal pumps is based on Bernoulli's equation, which states that during fluid flow, kinetic energy and potential energy can be converted into each other, but the total energy remains constant.

[0003] In the field of centrifugal pumps, most ordinary centrifugal pumps have separate pump covers and connecting brackets, which are two separate parts. First, the pump cover is connected and fastened to the pump body by a tie rod. Then, the two ends of the connecting bracket are connected and fastened to the pump cover and the motor by threads. This multiple connection is not only complicated, but also separates the pump cover and the connecting bracket. This results in high material consumption and high material costs during production. Processing two parts is also time-consuming due to the many mating surfaces, thus increasing processing costs and hindering cost reduction and efficiency improvement. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a centrifugal pump with an integrated pump cover and support structure, which has the advantages of combining the pump cover and support.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a centrifugal pump with an integrated pump cover and support structure, comprising a hemispherical cavity, two supporting ribs fixedly connected to the inner wall of the hemispherical cavity, a motor support end face fixedly connected to the upper surface of the two supporting ribs, a stop and four connecting holes respectively opened inside the motor support end face, multiple mounting holes opened in the inner wall of the hemispherical cavity, an exhaust plug mounting position fixedly connected to the outer surface of the hemispherical cavity, a mechanical seal mounting position provided on the outer surface of the hemispherical cavity, an annular groove opened inside the hemispherical cavity, and a cavity provided between the two supporting ribs and the mechanical seal mounting position.

[0006] Preferably, two reinforcing blocks are fixedly connected to the bottom surface of the motor support end face, and the side of the two reinforcing blocks that are close to each other are fixedly connected to the inner wall of the support rib.

[0007] Preferably, a servo motor is provided above the motor support end face, and a mounting block is fixedly connected to the outer surface of the servo motor, the mounting block being located inside the stop.

[0008] Preferably, a plurality of first bolts are provided above the mounting block, and the bottom end of each first bolt passes through the mounting block and the connecting hole in sequence and extends to the bottom of the motor support end face.

[0009] Preferably, a mechanical seal body is provided below the mounting block, and a coupling is fitted together on the outer surface of the mechanical seal body and the servo motor. Both the coupling and the mechanical seal body are located inside the cavity, and the mechanical seal body is snapped into the mechanical seal mounting position.

[0010] Preferably, an outer cylinder is provided below the hemispherical cavity, and a fixing block is fixedly connected to the outer surface of the outer cylinder.

[0011] Preferably, a plurality of second fixing bolts are provided above the fixing block, and the bottom end of each second fixing bolt passes through the mounting hole and the hemispherical cavity and extends to the bottom of the fixing block.

[0012] Preferably, the upper surface of the outer cylinder is in contact with a sealing gasket body, and the sealing gasket body is located inside the annular groove.

[0013] Compared with the prior art, this utility model provides a centrifugal pump with an integrated pump cover and support structure, which has the following advantages:

[0014] This centrifugal pump, with its integrated pump cover and bracket structure, features a hemispherical cavity, supporting ribs, a motor support end face, a stop, connecting holes, mounting holes, an exhaust plug mounting position, a mechanical seal mounting position, an annular groove, and a cavity. It boasts an aesthetically pleasing appearance, compact structure, and light weight, with a rationally distributed functional area. This integrated pump cover and bracket structure not only reduces the number of threaded connections during pump assembly but also saves materials and time during production due to its compact structure, light weight, and fewer machined surfaces, resulting in higher efficiency. Ultimately, this integrated structure effectively improves the overall pump production efficiency and reduces production costs. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the supporting rib of this utility model;

[0016] Figure 2 This is a three-dimensional cross-sectional structural diagram of the hemispherical cavity of this utility model;

[0017] Figure 3 This is a three-dimensional cross-sectional view of the motor support end face of this utility model;

[0018] Figure 4 This is a cross-sectional three-dimensional structural schematic diagram of the fixing block of this utility model.

[0019] In the diagram: 1. Hemispherical cavity; 2. Support rib; 3. Motor support end face; 4. Stop; 5. Connecting hole; 6. Mounting hole; 7. Exhaust plug mounting position; 8. Mechanical seal mounting position; 9. Annular groove; 10. Cavity; 11. Reinforcing block; 12. Servo motor; 13. Mounting block; 14. First bolt; 15. Mechanical seal body; 16. Coupling; 17. Outer cylinder; 18. Fixing block; 19. Second fixing bolt; 20. Sealing gasket body. Detailed Implementation

[0020] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a centrifugal pump with an integrated pump cover and support structure.

[0021] Please see Figure 1-4 This utility model discloses a centrifugal pump with an integrated pump cover and support structure, comprising a hemispherical cavity 1. Two support ribs 2 are fixedly connected to the inner wall of the hemispherical cavity 1. The upper surfaces of the two support ribs 2 are jointly fixedly connected to a motor support end face 3. The bottom surface of the motor support end face 3 is fixedly connected to two reinforcing blocks 11. The side of the two reinforcing blocks 11 that are close to each other is fixedly connected to the inner wall of the support ribs 2. The reinforcing blocks 11 can increase the fixed connection area between the motor support end face 3 and the support ribs 2, making the connection between the two more solid, avoiding the possibility of loosening at the connection after long-term use, and increasing the durability of the device.

[0022] The motor support end face 3 has a stop 4 and four connecting holes 5 respectively. A servo motor 12 is set on the top of the motor support end face 3. A mounting block 13 is fixedly connected to the outer surface of the servo motor 12. The mounting block 13 is located inside the stop 4. The position of the servo motor 12 can be positioned by the cooperation of the stop 4 and the mounting block 13. The servo motor 12 then provides a power source for the centrifugal pump, increasing the convenience of the device during use.

[0023] Multiple first bolts 14 are provided on the top of the mounting block 13. The bottom end of each first bolt 14 passes through the mounting block 13 and the connecting hole 5 in sequence and extends to the bottom of the motor support end face 3. By using the cooperation of the first bolts 14 and the connecting hole 5, the mounting block 13 can be quickly and firmly fixed inside the motor support end face 3, thereby fixing the servo motor 12 and improving the convenience during assembly.

[0024] The inner wall of the hemispherical cavity 1 has multiple mounting holes 6. The outer surface of the hemispherical cavity 1 is fixedly connected to an exhaust plug mounting position 7. The outer surface of the hemispherical cavity 1 is provided with a mechanical seal mounting position 8. The mechanical seal body 15 is provided below the mounting block 13. The outer surfaces of the mechanical seal body 15 and the servo motor 12 are jointly fitted with a coupling 16. The coupling 16 and the mechanical seal body 15 are both located inside the cavity 10. The mechanical seal body 15 is snapped into the mechanical seal mounting position 8. The mechanical seal body 15 can seal the hemispherical cavity 1. The servo motor 12 and the internal components of the mechanical seal body 15 are fixedly connected by the coupling 16, so that the internal components of the mechanical seal body 15 are driven to rotate by the power of the servo motor 12.

[0025] An annular groove 9 is provided inside the hemispherical cavity 1. An outer cylinder 17 is provided below the hemispherical cavity 1. A fixing block 18 is fixedly connected to the outer surface of the outer cylinder 17. The fixing block 18 is used to position the outer cylinder 17 and to conduct water to the hemispherical cavity 1, thereby increasing the effectiveness of the device during use.

[0026] A cavity 10 is provided between the two support ribs 2 and the mechanical seal mounting position 8. Multiple second fixing bolts 19 are provided above the fixing block 18. The bottom end of each second fixing bolt 19 passes through the mounting hole 6 and the hemispherical cavity 1 and extends to the bottom of the fixing block 18. By using the cooperation of the second fixing bolts 19 and the mounting hole 6, the fixing block 18 can be quickly fixed to the surface of the hemispherical cavity 1, thereby fixing the outer cylinder 17 inside the hemispherical cavity 1, which improves the speed and stability of fixing the outer cylinder 17.

[0027] The upper surface of the outer cylinder 17 is in contact with the sealing gasket body 20, which is located inside the annular groove 9. The sealing gasket body 20 can increase the sealing performance of the outer cylinder 17 and the hemispherical cavity 1 after they are fixed. The sealing gasket body 20 can fill the gap between the two, effectively improving the sealing ability of the device during use.

[0028] The working principle of this utility model is as follows: First, the servo motor 12 is powered on, and the position of the servo motor 12 is positioned by the stop 4. Then, the mounting block 13 and the motor support end face 3 are quickly reinforced by the cooperation of the first bolt 14 and the connecting hole 5 to prevent the servo motor 12 from falling off during operation. The mechanical seal body 15 is then snapped into the mechanical seal mounting position 8 and the cavity 10. The output end of the servo motor 12 is then connected to the pump shaft by the coupling 16. The power generated by the servo motor 12 drives the pump shaft to rotate, and the sealing gasket body 20 is placed in the annular groove 9. The outer cylinder 17 is then inserted into the hemispherical cavity 1 and made to contact the sealing gasket body 20. Then, the fixing block 18 is installed below the hemispherical cavity 1 by the cooperation of the second fixing bolt 19 and the mounting hole 6, thereby locking its position and further improving the stability of the device. This enables the pump cover bracket to be integrated, reduces the excessive threaded connections during the assembly of the whole pump, thereby increasing production efficiency and reducing production costs.

[0029] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A centrifugal pump with an integrated pump cover and support structure, comprising a hemispherical cavity (1), characterized in that: The inner wall of the hemispherical cavity (1) is fixedly connected to two support ribs (2), and the upper surfaces of the two support ribs (2) are fixedly connected to a motor support end face (3). The motor support end face (3) is provided with a stop (4) and four connecting holes (5) respectively. The inner wall of the hemispherical cavity (1) is provided with multiple mounting holes (6). The outer surface of the hemispherical cavity (1) is fixedly connected to an exhaust screw plug mounting position (7). The outer surface of the hemispherical cavity (1) is provided with a mechanical seal mounting position (8). The interior of the hemispherical cavity (1) is provided with an annular groove (9). A cavity (10) is provided between the two support ribs (2) and the mechanical seal mounting position (8).

2. The centrifugal pump with an integrated pump cover and support structure according to claim 1, characterized in that: Two reinforcing blocks (11) are fixedly connected to the bottom surface of the motor support end face (3), and the two reinforcing blocks (11) are fixedly connected to the inner wall of the support rib (2) on the side that is close to each other.

3. The centrifugal pump with an integrated pump cover and support structure according to claim 1, characterized in that: A servo motor (12) is provided above the motor support end face (3), and a mounting block (13) is fixedly connected to the outer surface of the servo motor (12). The mounting block (13) is located inside the stop (4).

4. A centrifugal pump with an integrated pump cover and support structure according to claim 3, characterized in that: A plurality of first bolts (14) are provided above the mounting block (13), and the bottom end of each first bolt (14) passes through the mounting block (13) and the connecting hole (5) in sequence and extends to the bottom of the motor support end face (3).

5. A centrifugal pump with an integrated pump cover and support structure according to claim 3, characterized in that: A mechanical seal body (15) is provided below the mounting block (13). A coupling (16) is fitted on the outer surface of the mechanical seal body (15) and the servo motor (12). The coupling (16) and the mechanical seal body (15) are both located inside the cavity (10). The mechanical seal body (15) is snapped into the inside of the mechanical seal mounting position (8).

6. A centrifugal pump with an integrated pump cover and support structure according to claim 1, characterized in that: An outer cylinder (17) is provided below the hemispherical cavity (1), and a fixing block (18) is fixedly connected to the outer surface of the outer cylinder (17).

7. A centrifugal pump with an integrated pump cover and support structure according to claim 6, characterized in that: A plurality of second fixing bolts (19) are provided above the fixing block (18), and the bottom end of each second fixing bolt (19) passes through the mounting hole (6) and the hemispherical cavity (1) and extends to the bottom of the fixing block (18).

8. A centrifugal pump with an integrated pump cover and support structure according to claim 6, characterized in that: The upper surface of the outer cylinder (17) is in contact with the sealing gasket body (20), which is located inside the annular groove (9).

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