Integrated centrifugal pump

Abstract

The utility model provides a kind of integrated centrifugal pump, it is related to centrifugal pump technical field, including pump body, motor and base, the top of base is installed with pump body, and the rear of pump body is installed with motor, the front end of motor is provided with rotating shaft, and rotating shaft rotates and moves in the center of pump body, the front end of pump body is provided with water inlet, and the front upper side of pump body is provided with water outlet, the rear portion of pump body is installed with first outer fixed sleeve and second outer fixed sleeve, and first outer fixed sleeve and second outer fixed sleeve are placed in outer shaft sleeve, and the rear portion of rotating shaft is installed in outer inner shaft sleeve, the upper end of front support frame, which is arranged on the front portion of base upper end surface, is fixed below the front portion of pump body.The utility model is convenient to filter and prevent blockage to the water pumped in, and is more resistant to high-speed water flow impact wear, while better guaranteeing rotating shaft rotation stability, to guarantee centrifugal pump operation safety and stability.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal pump technology, specifically to an integrated centrifugal pump. Background Technology

[0002] Centrifugal pumps typically convert rotational energy into energy in a moving fluid, with a portion of that energy converted into the fluid's kinetic energy. The fluid enters axially through the perforations in the casing, is captured by the impeller blades, and rotates outward tangentially and radially until it passes through all the circumferential parts of the impeller and enters the diffuser section of the casing. The fluid gains velocity and pressure as it passes through the impeller, and the annular diffuser or vortex section of the casing slows the flow and further increases the pressure. Before startup, the pump casing and suction pipe must be filled with water. The drive motor causes the impeller and water to rotate at high speed. The water, under centrifugal force, is thrown out of the impeller, flows through the channels in the volute into the pump's discharge pipe, and then into the distribution network.

[0003] The specification of an integrated sealed centrifugal pump in the prior art (publication number CN213574796U) mentions that "a motor is fixedly installed at one end of the base, a pump body is fixedly installed at the other end of the base, a coupling is connected to the output shaft of the motor, one end of the drive shaft of the pump body is connected to the pump body, the other end of the drive shaft is connected to the coupling, a seal is provided on the drive shaft between the pump body and the coupling, a housing is provided on the outside of the seal, one end of the housing is fixed to the pump body, and the other end of the housing is set on the drive shaft through a bearing." However, the centrifugal pump in the prior art is prone to clogging when pumping water, which affects the normal operation of the impeller. Moreover, the rear rod of the rotating shaft is suspended and rotates, which may cause shaking and imbalance under high-speed rotation, making it unsafe, stable and practical. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, an integrated centrifugal pump is provided to solve the problems of existing centrifugal pumps being prone to clogging during water pumping, affecting the normal operation of the impeller, and the rear shaft rotating in the air, which may cause shaking and imbalance at high speeds, making them unsafe, unstable and impractical.

[0005] To achieve the above objectives, an integrated centrifugal pump is provided, comprising a pump body, a motor, and a base. The pump body is mounted on top of the base, and the motor is mounted at the rear of the pump body. A rotating shaft is provided at the front end of the motor and rotates within the center of the pump body. An inlet is provided at the front end of the pump body, and an outlet is provided on the upper front side of the pump body. A first outer fixing sleeve and a second outer fixing sleeve are installed inside the rear of the pump body, and the first and second outer fixing sleeves are fitted over an inner shaft sleeve. The inner shaft sleeve is installed outside the rear of the rotating shaft. The upper end of a front support frame provided at the front of the upper end of the base is fixed to the lower front of the pump body, and the upper part of a middle support frame provided at the middle of the upper end of the base is fixed to the rear of the pump body. The upper end of a rear support frame at the rear of the upper end of the base is fixed to the lower part of the motor.

[0006] Furthermore, the front end of the water inlet is provided with a slot, and a filter screen is embedded in the slot. Multiple sets of fastening bolts are installed between the filter screen and the outer edge of the water inlet, and the filter screen and the water inlet are detachably connected.

[0007] Furthermore, the front of the pump body is provided with three sets of first grooves, and the inner sidewall of the first groove is provided with a first wear-resistant layer. The first wear-resistant layer is made of ceramic silicon material, and the rear end of the pump body is provided with a rear insertion port.

[0008] Furthermore, the front part of the pump body is provided with two sets of first connecting plates, and the first connecting plates are provided with openings. The middle part of the pump body is provided with a second connecting plate, and the front side of the second connecting plate is provided with a middle sealing layer. The rotating shaft is rotatably connected to the center of the first connecting plate and the middle sealing layer.

[0009] Furthermore, the front part of the rotating shaft is provided with an impeller, which is located in the first groove, and the rear part of the rotating shaft is fitted into the rear sealing sleeve, and the front part of the rear sealing sleeve is fitted into the rear insertion port.

[0010] Furthermore, a second groove is provided on the inner side of the first outer fixing sleeve, and a first ball is provided in the second groove, and the front part of the outer ring of the inner bushing is in contact with the first ball.

[0011] Furthermore, a third groove is provided on the front inner side of the second outer fixing sleeve, and a second ball is provided in the third groove. A fourth groove is provided on the rear inner side of the second outer fixing sleeve, and a third ball is provided in the fourth groove. The middle part of the outer ring surface of the inner bushing is in contact with the second ball, and the rear part of the outer ring surface of the inner bushing is in contact with the third ball.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. The water drawn in through the inlet of the cylinder of this utility model will first pass through the filter screen to avoid clogging the front of the pump body, which would affect the rotation of the impeller. In addition, the first wear-resistant layer in the first groove can reduce the wear of the high-speed flowing liquid on the pump body, making it safer and more durable.

[0014] 2. This utility model utilizes a motor to rotate a shaft. The rear sealing sleeve of the shaft fits into the rear insertion port, ensuring a tight and secure connection. The impeller at the front of the shaft rotates rapidly in the first groove, drawing in water flow, which is then quickly delivered through the outlet pipe, making it more efficient and convenient.

[0015] 3. The first and second outer fixing sleeves in this utility model are designed to better stabilize the rear rod of the rotating shaft and ensure stable rotation, thereby ensuring the safe and stable rotation of the entire rotating shaft and impeller within the pump body, and thus ensuring the safe and stable operation of the centrifugal pump. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the pump body according to an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the structural arrangement on the rear rod of the rotating shaft in an embodiment of this utility model.

[0020] In the diagram: 1. Pump body; 10. Inlet pipe; 11. Filter screen; 12. Fastening bolt; 13. Slot; 14. First groove; 15. First wear-resistant layer; 16. First connecting plate; 17. Through port; 18. Outlet pipe; 19. Middle sealing layer; 100. Second connecting plate; 101. Rear insertion port; 2. Motor; 20. Rotating shaft; 21. Inner shaft sleeve; 22. Impeller; 23. Rear sealing sleeve; 3. Base; 30. Front support frame; 31. Middle support frame; 32. Rear support frame; 4. First outer fixing sleeve; 40. Second groove; 41. First ball bearing; 5. Second outer fixing sleeve; 50. Third groove; 51. Second ball bearing; 52. Fourth groove; 53. Third ball bearing. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Specific details such as particular system structures and technologies are provided to facilitate a more thorough understanding of the embodiments of this utility model. The described embodiments are some, but not all, of the embodiments disclosed herein. However, those skilled in the art should understand that the present utility model can also be implemented in other embodiments without these specific details. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0022] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model. Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present utility model. Figure 3 This is a schematic diagram of the internal structure of the pump body according to an embodiment of the present utility model. Figure 4 This is a schematic diagram of the structural arrangement on the rear rod of the rotating shaft in an embodiment of this utility model.

[0024] Reference Figures 1 to 4 As shown, this utility model provides an integrated centrifugal pump, including a pump body 1, a motor 2, and a base 3. The pump body 1 is installed on the top of the base 3, and the motor 2 is installed at the rear of the pump body 1. A rotating shaft 20 is provided at the front end of the motor 2, and the rotating shaft 20 rotates within the center of the pump body 1. A water inlet 10 is provided at the front end of the pump body 1, and a water outlet 18 is provided on the upper front side of the pump body 1. A first outer fixing sleeve 4 and a second outer fixing sleeve 5 are installed inside the rear of the pump body 1, and the first outer fixing sleeve 4 and the second outer fixing sleeve 5 are fitted outside the inner shaft sleeve 21. The inner shaft sleeve 21 is installed outside the rear of the rotating shaft 20. The upper end of the front support frame 30 provided at the front of the upper end of the base 3 is fixed to the lower front of the pump body 1, and the upper part of the middle support frame 31 provided at the middle of the upper end of the base 3 is fixed outside the rear of the pump body 1. The upper end of the rear support frame 32 at the rear of the upper end of the base 3 is fixed below the motor 2.

[0025] In this embodiment, a slot 13 is provided at the front end of the water inlet 10, and a filter screen 11 is embedded in the slot 13. Multiple sets of fastening bolts 12 are installed between the filter screen 11 and the outer edge of the water inlet 10, and the filter screen 11 and the water inlet 10 are detachably connected. Three sets of first grooves 14 are provided at the front of the pump body 1, and a first wear-resistant layer 15 is provided on the inner side wall of the first groove 14. The first wear-resistant layer 15 is made of ceramic silicon material, and a rear insertion port 101 is provided at the rear end of the pump body 1. Two sets of first connecting plates 16 are provided in the front of the pump body 1, and a through port 17 is provided on the first connecting plate 16. A second connecting plate 100 is provided in the middle of the pump body 1. A middle sealing layer 19 is provided on the front side of the second connecting plate 100, and a rotating shaft 20 is rotatably connected to the center of the first connecting plate 16 and the middle sealing layer 19.

[0026] In a preferred embodiment, the water drawn in through the inlet 10 of the cylinder of this utility model will first pass through the filter screen 11 to prevent blockage of the front part of the pump body 1, which would affect the rotation of the impeller. Moreover, the first wear-resistant layer 15 in the first groove 14 can reduce the wear of the pump body by the high-speed flowing liquid, making it safer and more durable.

[0027] In this embodiment, an impeller 22 is provided at the front of the rotating shaft 20 and the impeller 22 is located in the first groove 14, and the rear of the rotating shaft 20 is fitted in the rear sealing sleeve 23, and the front of the rear sealing sleeve 23 is fitted in the rear insertion port 101.

[0028] As a preferred embodiment, this utility model utilizes the motor 2 to rotate the shaft 20. The rear sealing sleeve 23 of the shaft 20 is fitted into the rear insertion port 101, and the connection is tight and firm. The impeller 22 set at the front of the shaft 20 rotates rapidly in the first groove 14, introducing water flow into it, and then quickly conveying it out through the water outlet 18, which is more efficient and convenient.

[0029] In this embodiment, a second groove 40 is provided on the inner side of the first outer fixing sleeve 4, and a first ball 41 is disposed in the second groove 40. The front part of the outer ring of the inner bushing 21 is in contact with the first ball 41. A third groove 50 is provided on the front part of the inner side of the second outer fixing sleeve 5, and a second ball 51 is disposed in the third groove 50. A fourth groove 52 is provided on the rear part of the inner side of the second outer fixing sleeve 5, and a third ball 53 is disposed in the fourth groove 52. The middle part of the outer ring of the inner bushing 21 is in contact with the second ball 51, and the rear part of the outer ring of the inner bushing 21 is in contact with the third ball 53.

[0030] As a preferred embodiment, the first outer fixing sleeve 4 and the second outer fixing sleeve 5 in this utility model are provided to better stabilize the rear rod of the rotating shaft 20 and ensure its stable rotation, thereby ensuring the safe and stable rotation of the entire rotating shaft 20 and impeller 22 within the pump body 1, and thus ensuring the safe and stable operation of the centrifugal pump.

[0031] This invention effectively solves the problems of existing centrifugal pumps, which are prone to clogging during water pumping, affecting the normal operation of the impeller, and the rear shaft rotating in mid-air, which may cause swaying and imbalance under high-speed rotation, making them unsafe, unstable and impractical. This invention facilitates the filtration and anti-clogging treatment of the pumped water, is more resistant to the impact and wear of high-speed water flow, and can better ensure the stability of the shaft rotation, thereby ensuring the safe and stable operation of the centrifugal pump.

[0032] The above embodiments are used to explain and illustrate the present utility model, and not to limit the utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims should be included within the protection scope of the present utility model.

Claims

1. An integrated centrifugal pump, characterized in that: The system includes a pump body (1), a motor (2), and a base (3). The pump body (1) is mounted on top of the base (3), and the motor (2) is mounted behind the pump body (1). A rotating shaft (20) is provided at the front end of the motor (2), and the rotating shaft (20) rotates within the center of the pump body (1). An inlet pipe (10) is provided at the front end of the pump body (1), and an outlet pipe (18) is provided on the upper front side of the pump body (1). A first outer fixing sleeve (4) and a second outer fixing sleeve (2) are installed inside the rear part of the pump body (1). 5), and the first outer fixing sleeve (4) and the second outer fixing sleeve (5) are fitted outside the inner bushing (21), and the inner bushing (21) is installed outside the rear part of the rotating shaft (20). The upper end of the front support frame (30) provided on the front of the upper end of the base (3) is fixed to the lower front part of the pump body (1), and the upper part of the middle support frame (31) provided on the middle of the upper end of the base (3) is fixed outside the rear part of the pump body (1), and the upper end of the rear support frame (32) at the rear of the upper end of the base (3) is fixed to the motor (2).

2. The integrated centrifugal pump according to claim 1, characterized in that, The front end of the water inlet (10) is provided with a slot (13), and a filter bag (11) is embedded in the slot (13). Multiple sets of fastening bolts (12) are installed between the filter bag (11) and the outer edge of the water inlet (10), and the filter bag (11) and the water inlet (10) are connected separately.

3. An integrated centrifugal pump according to claim 1, characterized in that, The front part of the pump body (1) is provided with three sets of first grooves (14), and the inner sidewall of the first groove (14) is provided with a first wear-resistant layer (15). The first wear-resistant layer (15) is made of ceramic silicon material, and the rear end of the pump body (1) is provided with a rear insertion port (101).

4. An integrated centrifugal pump according to claim 1, characterized in that, Two sets of first connecting plates (16) are provided in the front part of the pump body (1), and a through port (17) is provided on the first connecting plate (16). A second connecting plate (100) is provided in the middle part of the pump body (1). A middle sealing layer (19) is provided on the front side of the second connecting plate (100), and a rotating shaft (20) is rotatably connected to the center of the first connecting plate (16) and the middle sealing layer (19).

5. An integrated centrifugal pump according to claim 1, characterized in that, The front part of the rotating shaft (20) is provided with an impeller (22), and the impeller (22) is located in the first groove (14). The rear part of the rotating shaft (20) is fitted in the rear sealing sleeve (23), and the front part of the rear sealing sleeve (23) is fitted in the rear insertion port (101).

6. An integrated centrifugal pump according to claim 1, characterized in that, The inner side of the first outer fixing sleeve (4) is provided with a second groove (40), and a first ball (41) is provided in the second groove (40), and the front part of the outer ring of the inner bushing (21) is in contact with the first ball (41).

7. An integrated centrifugal pump according to claim 1, characterized in that, The second outer fixing sleeve (5) has a third groove (50) on its inner front side, and a second ball (51) is provided in the third groove (50). The second outer fixing sleeve (5) has a fourth groove (52) on its inner rear side, and a third ball (53) is provided in the fourth groove (52). The middle part of the outer ring surface of the inner bushing (21) is in contact with the second ball (51), and the rear part of the outer ring surface of the inner bushing (21) is in contact with the third ball (53).

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