Single-stage vane type centrifugal pump
By introducing angle adjustment components into single-stage vane centrifugal pumps, the problem that traditional pumps are difficult to adapt to different flow and head requirements is solved, and adaptability and efficiency of wider application scenarios are achieved.
Patent Information
- Application Number
- CN202420922379.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-04-30
AI Technical Summary
Traditional single-stage vane centrifugal pumps lack vane angle adjustment structure, which is difficult to adapt to different flow rates and head requirements, and has low flexibility.
A single-stage vane centrifugal pump including a servo motor and a pump body is designed. The angle adjustment component is used to realize the angle adjustment of the arc-shaped blade through the rotor, the pin, the connecting rod, the shaft and the clamp, and the angle adjustment of the arc-shaped blades to adapt to different flow rates and Head requirements.
Through blade angle adjustment, the pump can flexibly adjust the flow rate and head in different application scenarios, improving the adaptability and efficiency of the equipment.
Smart Images
Figure CN222296515U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of centrifugal pumps, in particular to a single-stage blade type centrifugal pump. Background Art
[0002] A single-stage vane centrifugal pump is a centrifugal pump with a single impeller. Its working principle mainly relies on the rotation of the impeller to generate centrifugal force to transport liquid. When the pump shaft drives the impeller to rotate at high speed, the liquid enters the pump casing from the suction port and is pushed to the outside of the impeller under the action of centrifugal force, and then discharged from the outlet. During this process, the speed and pressure of the liquid gradually increase, realizing the continuous suction, acceleration and discharge of the liquid.
[0003] In the prior art, a centrifugal pump is proposed in a Chinese patent document with publication number CN215805203U. The patent can achieve the purpose of easy disassembly, solve the problem that general centrifugal pumps cannot be easily disassembled, and can be convenient for maintenance personnel to repair, thereby increasing the economic benefits of users. At the same time, the centrifugal pump can be easy to clean, thereby improving the durability of the internal parts of the centrifugal pump, extending the service life of the centrifugal pump, and thus improving the practicality of the centrifugal pump. However, the above patent document is consistent with the prior art in that it does not have an angle adjustment structure for the blades, is difficult to adapt to different flow and head requirements, and has low flexibility. Furthermore, we disclose a single-stage blade centrifugal pump to meet the actual needs of traditional single-stage blade centrifugal pumps that do not have an angle adjustment structure for the blades, are difficult to adapt to different flow and head requirements, and have low flexibility. Utility Model Content
[0004] The utility model aims to provide a single-stage vane centrifugal pump to solve the problem that the traditional single-stage vane centrifugal pump is not provided with a blade angle adjustment structure, is difficult to adapt to different flow and head requirements, and has low flexibility.
[0005] Based on the above purpose, the utility model provides a single-stage blade centrifugal pump, including a servo motor and a pump body, the servo motor is fixedly connected to one side of the pump body, the output end of the servo motor extends into the interior of the pump body and is fixedly connected to a mounting frame, the outside of the mounting frame is evenly rotatably connected to a plurality of arc-shaped blades that generate centrifugal force by rotation to transport liquid, one end of the arc-shaped blade is fixedly connected to a rotating block, the arc-shaped blade is rotatably connected to the mounting frame via the rotating block, and an angle adjustment component for adjusting the arc-shaped blade is provided on a side of the mounting frame away from the servo motor.
[0006] Preferably, the angle adjustment assembly includes a turntable arranged in the middle of one side of the mounting frame, and a plurality of push rods are slidably connected to the outer side of the turntable at even intervals.
[0007] Preferably, one end of each of the plurality of push rods extends into the interior of the mounting frame and is fixedly connected to a telescopic spring, and one end of each of the plurality of telescopic springs is fixedly connected to the mounting frame.
[0008] Preferably, a plurality of connecting rods are evenly spaced and fixedly connected to the outer wall of the rotating disk, the number of the connecting rods is the same as the number of the arc-shaped blades, and one end of the connecting rod away from the rotating disk is fixedly connected to a clamping shaft.
[0009] Preferably, one end of the clamping shaft is slidably connected to a vertical plate, one end of the vertical plate is provided with a rectangular groove, the clamping shaft is slidably connected to the vertical plate through the rectangular groove, the lower end of the vertical plate is fixedly connected to a clamping plate, and the lower end of the clamping plate is fixedly connected to the arc-shaped blade.
[0010] Preferably, according to the single-stage vane centrifugal pump according to the claim, a rocking plate is provided in the middle of a side of the pump body away from the servo motor, and the rocking plate is coaxial with the turntable.
[0011] Preferably, one end of the rocking plate extends into the interior of the pump body and is fixedly connected to a connecting plate, and a plurality of plug rods are evenly and fixedly connected to an end surface of the connecting plate away from the rocking plate, and the number of the plug rods is the same as that of the ejector rods.
[0012] The beneficial effects of the utility model are as follows: when in use, the blade angle adjustment component can be shaken to drive the arc-shaped blade to rotate, thereby realizing angle adjustment, which can easily adapt to different flow and head requirements. When the flow needs to be increased, the blade angle can be reduced, and when the head needs to be increased, the blade angle can be increased. This flexibility enables the pump to adapt to a wider range of application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the blade angle adjustment component of the utility model;
[0015] Figure 3 This is a schematic diagram of the partial three-dimensional structure of the blade angle adjustment component of the utility model;
[0016] Figure 4 for Figure 3 The enlarged view of point A in the middle;
[0017] Figure 5 This is a schematic diagram of the internal three-dimensional structure of the mounting frame of the utility model;
[0018] Figure 6 It is a schematic diagram of the internal structure of the mounting frame of the utility model.
[0019] The markings in the figure are:
[0020] 1. Servo motor; 2. Pump body; 3. Rocker plate; 4. Insert rod; 5. Mounting frame; 6. Curved blades; 7. Push rod; 8. Turntable; 9. Telescopic spring; 10. Rectangular groove; 11. Connecting rod; 12. Clamp shaft; 13. Clamp plate; 14. Vertical plate; 15. Rotating block; 16. Connecting plate. DETAILED DESCRIPTION
[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.
[0022] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0023] like Figures 1 to 6 As shown, a single-stage blade centrifugal pump includes a servo motor 1 and a pump body 2. The servo motor 1 is fixedly connected to one side of the pump body 2. The output end of the servo motor 1 extends into the interior of the pump body 2 and is fixedly connected to a mounting frame 5. The outside of the mounting frame 5 is evenly rotatably connected with a plurality of arc-shaped blades 6 that rotate to generate centrifugal force to transport liquid. One end of the arc-shaped blade 6 is fixedly connected to a rotating block 15. The arc-shaped blade 6 is rotatably connected to the mounting frame 5 through the rotating block 15. An angle adjustment component for adjusting the arc-shaped blade 6 is provided on the side of the mounting frame 5 away from the servo motor 1. When the single-stage blade centrifugal pump is in use, the blade angle adjustment component can be driven to rotate the arc-shaped blade 6 by shaking, thereby realizing angle adjustment. It can easily adapt to different flow and head requirements. When the flow needs to be increased, the blade angle can be reduced. When the head needs to be increased, the blade angle can be increased. This flexibility enables the pump to adapt to a wider range of application scenarios.
[0024] Further, such as Figures 2 to 6As shown, the angle adjustment assembly includes a turntable 8 arranged in the middle of one side of the mounting frame 5, and a plurality of push rods 7 are evenly spaced and slidably connected to the outer side of the turntable 8. One end of each of the push rods 7 extends into the interior of the mounting frame 5 and is fixedly connected to a telescopic spring 9, and one end of each of the telescopic springs 9 is fixedly connected to the mounting frame 5. A plurality of connecting rods 11 are evenly spaced and fixedly connected to the outer wall of the turntable 8. The number of the connecting rods 11 is the same as that of the arc-shaped blades 6. The end of the connecting rod 11 away from the turntable 8 is fixedly connected to a clamping shaft 12, and one end of the clamping shaft 12 is slidably connected to a vertical plate 14, and one end of the vertical plate 14 is provided with a rectangular groove 10, and the clamping shaft 12 passes through the rectangular groove 10 is slidably connected to the vertical plate 14, the lower end of the vertical plate 14 is fixedly connected to the clamping plate 13, the lower end of the clamping plate 13 is fixedly connected to the arc-shaped blade 6, a rocking plate 3 is arranged in the middle of the side of the pump body 2 away from the servo motor 1, the rocking plate 3 is coaxial with the turntable 8, one end of the rocking plate 3 extends into the interior of the pump body 2 and is fixedly connected to a connecting plate 16, and a plurality of plug rods 4 are evenly spaced and fixedly connected to the end surface of the connecting plate 16 away from the rocking plate 3, and the number of the plug rods 4 is the same as the top rod 7. When the angle of the arc-shaped blade 6 needs to be adjusted in this single-stage blade centrifugal pump, the plug rod 4 at the front end of the crank handle is inserted into the jack in the turntable 8 by pressing the crank handle. , the top rod 7 in the jack is moved backward by the action of the telescopic spring 9, the connection with the turntable 8 is cancelled, and then the rocking plate 3 is rotated by the crank on the rocking plate 3 to rotate the turntable 8. A sealing gasket is provided at the connection between the rotating shaft between the rocking plate 3 and the connecting plate 16 and the pump body 2 to improve the sealing effect and prevent liquid leakage. The turntable 8 drives the connecting rod 11 and the card shaft 12 to move, and the vertical plate 14 is rotated by the connecting plate effect of the rotating card connection at both ends of the card shaft 12. A rectangular groove 10 is provided on the vertical plate 14. The distance between the two connecting plates on the card shaft 12 is equal to the thickness of the vertical plate 14, so that when the vertical plate 14 rotates When the skew occurs, the connecting plate can also limit it, and it will not deflect and lose the centrifugal effect during the rotation process. At the same time, it also makes it easy for the vertical plate 14 to rotate. Since the lower end of the vertical plate 14 is connected to the arc blade 6 through the clamping plate 13, and the arc blade 6 is rotatably engaged with the mounting frame 5 through the rotating block 15, the rotation of the vertical plate 14 can drive the arc blade 6 to rotate, and drive the arc blade 6 to complete the angle adjustment. When the angle is adjusted to a suitable position, the shaking plate 3 is pushed backward to make the insertion rod 4 disengage from the turntable 8, and the top rod 7 moves forward through the action of the telescopic spring 9 and is inserted into the turntable 8 to limit and fix the turntable 8.
[0025] Working principle: When the angle of the arc blade 6 of the single-stage vane centrifugal pump needs to be adjusted, the crank handle is pressed to insert the insertion rod 4 at the front end of the crank handle into the insertion hole in the turntable 8, and the top rod 7 in the insertion hole is moved backward by the action of the telescopic spring 9 to cancel the connection with the turntable 8, and then the crank on the rocking plate 3 is used to rotate the rocking plate 3 to rotate the turntable 8. A sealing gasket is provided at the connection between the rotating shaft between the rocking plate 3 and the connecting plate 16 and the pump body 2 to improve the sealing effect and prevent liquid leakage. The turntable 8 drives the connecting rod 11 and the clamping shaft 12 to move, and the vertical plate 14 is rotated by the connecting plate that is rotated and clamped at both ends of the clamping shaft 12. The vertical plate 14 is provided with a rectangular groove 10, and the clamping shaft 12 is provided with a sealing gasket. The distance between the two connecting plates is equal to the thickness of the vertical plate 14, so that when the vertical plate 14 rotates and becomes skewed, the connecting plate can also limit it, and it will not deflect and lose the centrifugal effect during the rotation process. At the same time, it also makes it convenient for the vertical plate 14 to rotate. Since the lower end of the vertical plate 14 is connected to the arc blade 6 through the clamping plate 13, and the arc blade 6 is rotatably engaged with the mounting frame 5 through the rotating block 15, the rotation of the vertical plate 14 can drive the arc blade 6 to rotate, and drive the arc blade 6 to complete the angle adjustment. When the angle is adjusted to a suitable position, the shaking plate 3 is pushed backward to make the insertion rod 4 disengage from the turntable 8, and the top rod 7 moves forward through the action of the telescopic spring 9 and is inserted into the turntable 8 to limit and fix the turntable 8.
[0026] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.
[0027] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.
Claims
1. A single-stage vane centrifugal pump, comprising a servo motor (1) and a pump body (2), characterized in that: The servo motor (1) is fixedly connected to one side of the pump body (2); the output end of the servo motor (1) extends into the interior of the pump body (2) and is fixedly connected to a mounting frame (5); a plurality of arc-shaped blades (6) are rotatably connected at even intervals to the outside of the mounting frame (5) for conveying liquid by generating centrifugal force through rotation; one end of the arc-shaped blade (6) is fixedly connected to a rotating block (15); the arc-shaped blade (6) is rotatably connected to the mounting frame (5) via the rotating block (15); and an angle adjustment component for adjusting the arc-shaped blade (6) is provided on a side of the mounting frame (5) away from the servo motor (1).
2. A single-stage vane centrifugal pump according to claim 1, characterized in that: The angle adjustment assembly comprises a rotating disk (8) arranged in the middle of one side of the mounting frame (5), and a plurality of push rods (7) are slidably connected to the outer side of the rotating disk (8) at even intervals.
3. A single-stage vane centrifugal pump according to claim 2, characterized in that: One end of each of the plurality of push rods (7) extends into the interior of the mounting frame (5) and is fixedly connected to a telescopic spring (9); one end of each of the plurality of telescopic springs (9) is fixedly connected to the mounting frame (5).
4. A single-stage vane centrifugal pump according to claim 2, characterized in that: The outer wall of the rotating disk (8) is evenly spaced and fixedly connected to a plurality of connecting rods (11), the number of the connecting rods (11) being the same as the number of the arc-shaped blades (6), and one end of the connecting rod (11) away from the rotating disk (8) is fixedly connected to a clamping shaft (12).
5. A single-stage vane centrifugal pump according to claim 4, characterized in that: One end of the clamping shaft (12) is slidably connected to a vertical plate (14), one end of the vertical plate (14) is provided with a rectangular groove (10), the clamping shaft (12) is slidably connected to the vertical plate (14) via the rectangular groove (10), the lower end of the vertical plate (14) is fixedly connected to a clamping plate (13), and the lower end of the clamping plate (13) is fixedly connected to the arc-shaped blade (6).
6. A single-stage vane centrifugal pump according to claim 1, characterized in that: A rocking plate (3) is provided in the middle of a side of the pump body (2) away from the servo motor (1), and the rocking plate (3) is coaxial with the rotating disk (8).
7. A single-stage vane centrifugal pump according to claim 6, characterized in that: One end of the rocking plate (3) extends into the interior of the pump body (2) and is fixedly connected to a connecting plate (16); a plurality of insertion rods (4) are evenly spaced and fixedly connected to an end surface of the connecting plate (16) away from the rocking plate (3); the number of the insertion rods (4) is the same as that of the top rod (7).