Axial flow pump with blade angle adjusting function
By designing the adjustment cylinder, drive gear and driven gear in the axial flow pump, the adjustment of the blade angle is achieved, which solves the problem that the existing axial flow pump cannot adapt to liquid extraction at different angles, and improves the efficiency and practicality of the pump.
Patent Information
- Application Number
- CN202422301103.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-20
AI Technical Summary
The vane angle of the existing axial flow pump is fixed and cannot adapt to liquid extraction at different angles, resulting in large energy loss, serious noise and vibration, reducing the practicality of the pump.
An axial flow pump with blade angle adjustment function is designed. By setting up a adjustment cylinder, a driving gear, a rotating shaft and a driven gear, the driving gear and the driven gear are driven to rotate, so as to achieve the angle adjustment of the blade.
It effectively enhances the adjustment range of the blade, realizes multi-directional adjustment of the blade, reduces energy loss, reduces noise and vibration, and improves the practicality of the axial flow pump.
Smart Images
Figure CN223049072U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of axial flow pumps, and specifically relates to an axial flow pump with a blade angle adjustment function. Background Technique
[0002] An axial flow pump is a pump that uses the force generated by the blades of a rotating impeller on the liquid to convey the liquid along the axis direction. There are several types such as vertical, horizontal, inclined, and tubular. Axial flow pumps are mainly applicable to irrigation, drainage, shipyard drainage, water level regulation of canal locks, or used as large-scale circulating water pumps in power plants, etc.
[0003] In common axial flow pumps, the rotating blades and the rotating shaft are both fixed to the axial flow pump by bolts. Since the angles of the rotating blades of the axial flow pump are fixed, when pumping water at different angles, an unreasonable guide blade angle will cause a large interference to the fluid flow, resulting in large energy losses. The fluid flow state is disordered, and there will be relatively strong noise and vibration, reducing the practicality of the axial flow pump. Currently, most of the blades of axial flow pumps can only adjust the rotation of the blades themselves, and the adjustment degree is limited. Content of the Utility Model
[0004] The purpose of the utility model is to provide an axial flow pump with a blade angle adjustment function to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: an axial flow pump with a blade angle adjustment function, including a pump shell, the outside of the pump shell is fixedly connected with a fixing frame, the top of the fixing frame is fixedly installed with a first motor, the output end of the first motor is fixedly connected with a driving shaft, one end of the driving shaft is fixedly connected with an adjusting cylinder, a second motor is fixedly installed inside the adjusting cylinder, the output end of the second motor is fixedly connected with a driving gear, a rotating shaft is arranged outside the adjusting cylinder, one end of the rotating shaft is fixedly connected with a driven gear, the other end of the rotating shaft is fixedly connected with a connecting block, a hinge shaft is arranged on the connecting block, a limiting groove is opened at one end of the connecting block, a blade is arranged on the side of the connecting block, a fixing hole is opened inside the connecting block, an electric telescopic rod is fixedly installed inside the adjusting cylinder, the output end of the electric telescopic rod is fixedly connected with a moving plate, the moving plate is hinged with one end of a connecting plate, a sliding groove is opened outside the connecting block, and one end of the connecting plate is hinged with a sliding block.
[0006] Preferably, both the driving gear and the driven gear are bevel gears, and the driven gear is meshed with the driving gear.
[0007] Preferably, one end of the rotating shaft extends into the adjusting cylinder and is fixedly connected with the driven gear. The outside of the rotating shaft is rotationally connected with the adjusting cylinder through a bearing sleeve, and the rotating shafts are evenly distributed in a circumferential array around the center of the adjusting cylinder.
[0008] Preferably, a circular through-hole is formed at one end of the connecting block, both ends of the hinge shaft are rotatably connected to the inner wall of the circular through-hole, one end of the rotating shaft is fixedly connected to the outside of the hinge shaft, and the rotating shaft is movably hinged to the circular through-hole inside the connecting block through the hinge shaft.
[0009] Preferably, the inside of the limiting groove is inserted into the outside of the blade, and the fixing hole penetrates through the limiting groove.
[0010] Preferably, a threaded hole is formed on the side surface of the blade, and the blade is connected and fixed to the fixing hole through the threaded hole and a bolt.
[0011] Preferably, the sliding groove is an annular groove, and the inside of the sliding groove is slidably connected to the slider.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] By providing an adjusting cylinder, a driving gear, a rotating shaft and a driven gear, the driving gear drives the driven gear to rotate through the second motor, further causing the rotating shaft and the blade to rotate, realizing the change of the angle of the blade itself. Through the connecting block, the electric telescopic rod, the moving plate, the connecting plate, the sliding groove and the slider, the electric telescopic rod makes the moving plate move up and down, further causing the connecting plate to drive the connecting member to rotate around the hinge shaft in a circular shape, thereby realizing the adjustment of the inclination angle of the blade, effectively enhancing the adjustment range of the blade, and realizing the multi-directional adjustment of the blade. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0015] Figure 2 is a cross-sectional view of the overall structure of the present utility model;
[0016] Figure 3 is a schematic diagram of the structure of the adjusting cylinder of the present utility model;
[0017] Figure 4 is a schematic diagram of the structure of the connecting block of the present utility model;
[0018] Figure 5 is a schematic diagram of the structure of the blade of the present utility model.
[0019] In the figure: 1, pump housing; 2, fixing bracket; 3, first motor; 4, driving shaft; 5, adjusting cylinder; 6, second motor; 7, driving gear; 8, rotating shaft; 9, driven gear; 10, connecting block; 11, hinge shaft; 12, limiting groove; 13, blade; 14, fixing hole; 15, electric telescopic rod; 16, moving plate; 17, connecting plate; 18, sliding groove; 19, slider. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.
[0021] Please refer to Figures 1-5 , the present utility model provides a technical solution: an axial flow pump with a blade angle adjustment function, including a pump casing 1, the outside of the pump casing 1 is welded and fixed to a fixing frame 2, the inside of the pump casing 1 is hollow, the top of the fixing frame 2 is connected and fixed to a first motor 3 by bolts, the output end of the first motor 3 extends into the pump casing 1 and is welded and fixed to a drive shaft 4, one end of the drive shaft 4 is welded and fixed to an adjustment cylinder 5, the inside of the adjustment cylinder 5 is connected and fixed to the top of a second motor 6, the output end of the second motor 6 is welded and fixed to a drive gear 7, the outside of the adjustment cylinder 5 is rotatably connected to a rotating shaft 8, one end of the rotating shaft 8 is welded and fixed to a driven gear 9, the other end of the rotating shaft 8 is welded and fixed to a connecting block 10, one end of the rotating shaft 8 is fixedly connected to a hinge shaft 11, a limiting groove 12 is opened at one end of the connecting block 10, a blade 13 is arranged on the side of the connecting block 10, a fixing hole 14 is opened inside the connecting block 10, the inside of the adjustment cylinder 5 is connected and fixed to the bottom surface of an electric telescopic rod 15 by bolts, the output end of the electric telescopic rod 15 is welded and fixed to a moving plate 16, the moving plate 16 is hinged to one end of a connecting plate 17, a sliding groove 18 is opened on the outside of the connecting block 10, and one end of the connecting plate 17 is hinged to a slider 19.
[0022] In order to realize the synchronous adjustment of the angles of all the blades 13, both the drive gear 7 and the driven gear 9 are bevel gears, the driven gear 9 is meshed and connected to the drive gear 7, one end of the rotating shaft 8 extends into the adjustment cylinder 5 and is welded and fixed to the driven gear 9, the outside of the rotating shaft 8 is rotatably connected to the adjustment cylinder 5 through a bearing sleeve, the rotating shaft 8 is evenly distributed in a circumferential array around the center of the adjustment cylinder 5, and the driven gears 9 are evenly distributed outside the drive gear 7. By rotating the drive gear 7 through the second motor 6, all the driven gears 9 can be rotated synchronously, realizing the adjustment of the angles of the blades 13 themselves and reducing the difficulty of adjusting the angles of the blades 13.
[0023] In order to ensure that the adjustment of the inclination angle of the blade 13 itself does not interfere with the rotation of the blade 13 itself, a circular through-hole is opened at one end of the connecting block 10. Both ends of the hinge shaft 11 are rotatably connected to the inner wall of the circular through-hole. One end of the rotating shaft 8 is fixedly welded to the outside of the hinge shaft 11. The rotating shaft 8 is movably hinged to the circular through-hole inside the connecting block 10 through the hinge shaft 11. The inside of the limiting groove 12 is inserted into the outside of the blade 13. The fixing hole 14 penetrates through the limiting groove 12. The sliding groove 18 is an annular groove. The inside of the sliding groove 18 is slidably connected to the slider 19. The rotation of the driving gear 7 causes the connecting block 10 and the blade 13 to rotate synchronously, so that the slider 19 slides inside the sliding groove 18, avoiding the interference of the connecting plate 17 with the rotation of the connecting block 10, that is, realizing the adjustment of the angle of the blade 13 itself and the separate adjustment of the inclination angle of the blade 13. By means of the electric telescopic rod 15, the moving plate 16 moves up and down. The movement of the moving plate 16 causes the connecting plate 17 to drive the connecting block 10 to rotate around the hinge shaft 11, that is, the top end of the electric telescopic rod 15 moves up and down, thereby realizing the adjustment of the inclination angle of the connecting block 10 and the blade 13 itself.
[0024] In order to reduce the difficulty of replacing the blade 13, a threaded hole is opened on the side of the blade 13. The blade 13 is connected and fixed to the fixing hole 14 through the threaded hole and the bolt. Rotate and remove the bolt inside the fixing hole 14, and then take out the blade 13 from the inside of the limiting groove 12 to complete the disassembly. When installing the blade 13, insert the blade 13 into the inside of the limiting groove 12 and fix it by passing the bolt through the threaded hole on the side of the blade 13.
[0025] Working principle: When in use, the staff makes the driving shaft 4 rotate through the first motor 3, and synchronously drives the adjusting cylinder 5 and the blade 13 to rotate through the driving shaft 4, so as to convey the liquid. If it is necessary to adjust the angle of the limiting groove 12, the driving gear 7 is rotated through the second motor 6, and the driven gear 9 and the rotating shaft 8 are synchronously driven to rotate through the driving gear 7, further causing the connecting block 10 and the blade 13 to rotate, realizing the change of the angle of the blade 13 itself. The moving plate 16 moves up and down by means of the electric telescopic rod 15. The movement of the moving plate 16 causes the connecting plate 17 to drive the connecting block 10 to rotate around the hinge shaft 11, thereby realizing the adjustment of the inclination angle of the connecting block 10 and the blade 13 itself, effectively expanding the adjustment range of the blade 13 and making the axial flow pump applicable to pumping liquids at different angles.
[0026] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.
[0027] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. An axial flow pump with blade angle adjustment function, comprising a pump housing (1), characterized in that: The outer side of the pump housing (1) is fixedly connected to the fixing frame (2); a motor 1 (3) is fixedly mounted on the top of the fixing frame (2); an output end of the motor 1 (3) is fixedly connected to a drive shaft (4); one end of the drive shaft (4) is fixedly connected to an adjustment cylinder (5); a motor 2 (6) is fixedly mounted inside the adjustment cylinder (5); an output end of the motor 2 (6) is fixedly connected to a drive gear (7); a rotating shaft (8) is arranged on the outer side of the adjustment cylinder (5); one end of the rotating shaft (8) is fixedly connected to a driven gear (9); and the other end of the rotating shaft (8) is fixedly connected to a connecting block (10). The connecting block (10) is provided with a hinge shaft (11), one end of the connecting block (10) is provided with a limit groove (12), a side surface of the connecting block (10) is provided with a blade (13), a fixing hole (14) is provided inside the connecting block (10), an electric telescopic rod (15) is fixedly installed inside the adjusting cylinder (5), an output end of the electric telescopic rod (15) is fixedly connected to a moving plate (16), the moving plate (16) is hinged to one end of a connecting plate (17), a sliding groove (18) is provided on the outer side of the connecting block (10), and one end of the connecting plate (17) is hinged to a slider (19).
2. The axial flow pump with blade angle adjustment function according to claim 1, characterized in that: The driving gear (7) and the driven gear (9) are both bevel gears, and the driven gear (9) is meshingly connected with the driving gear (7).
3. The axial flow pump with blade angle adjustment function according to claim 1, characterized in that: One end of the rotating shaft (8) extends to the inside of the adjusting cylinder (5) and is fixedly connected to the driven gear (9); the outer side of the rotating shaft (8) is rotatably connected to the adjusting cylinder (5) via a bearing sleeve; the rotating shafts (8) are evenly distributed in a circular array around the center of the adjusting cylinder (5).
4. The axial flow pump with blade angle adjustment function according to claim 1, characterized in that: A circular through hole is provided at one end of the connection block (10), and both ends of the hinge shaft (11) are rotatably connected to the inner wall of the circular through hole respectively. One end of the rotation shaft (8) is fixedly connected to the outer side of the hinge shaft (11), and the rotation shaft (8) is movably hinged to the circular through hole inside the connection block (10) via the hinge shaft (11).
5. The axial flow pump with blade angle adjustment function according to claim 1, characterized in that: The interior of the limiting groove (12) is plugged into the exterior of the blade (13), and the fixing hole (14) is arranged through the limiting groove (12).
6. The axial flow pump with blade angle adjustment function according to claim 1, characterized in that: A threaded hole is provided on the side surface of the blade (13), and the blade (13) is connected and fixed via the threaded hole, a bolt and a fixing hole (14).
7. The axial flow pump with blade angle adjustment function according to claim 1, characterized in that: The slide groove (18) is an annular groove, and the interior of the slide groove (18) is slidably connected to the slider (19).