CN218717683U

CN218717683U - Impeller assembly of submersible pump

Info

Publication number: CN218717683U
Application number: CN202222914939.1U
Authority: CN
Inventors: 刘桂林; 李洪亮; 李怀玉
Original assignee: Shouguang Futai Electromechanical Equipment Manufacturing Co ltd
Current assignee: Shouguang Futai Electromechanical Equipment Manufacturing Co ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-03-24
Anticipated expiration: 2032-11-03

Abstract

The utility model discloses a immersible pump impeller subassembly belongs to immersible pump technical field, including the blower inlet casing, kuppe and impeller body, the kuppe sets up to the hollow circular cylinder structure, impeller body sets up in the inner chamber lower part of kuppe, be provided with the axle sleeve on impeller body's the axis, the inner chamber of axle sleeve sets up to transversal personally submitting regular hexagon, axle sleeve outer wall symmetry is equipped with two auxiliary assembly, through seting up the smooth chamber of annular at the kuppe lower extreme, make the auxiliary sleeve paste the smooth chamber of annular and slide, when avoiding the impeller high-speed revolve, take place strong friction with the kuppe, influence the life of impeller, simultaneously through setting up connecting axle and external screw thread cover, be convenient for realize the dismantlement change of auxiliary sleeve, can guarantee the inside leakproofness of auxiliary sleeve simultaneously, avoid water to enter into in the auxiliary sleeve, cause threaded connection department to rust.

Description

Impeller assembly of submersible pump

Technical Field

The utility model relates to a immersible pump technical field especially relates to immersible pump impeller subassembly.

Background

The submersible pump is widely applied to the fields of farmland irrigation and drainage, water supply companies, geological exploration, geothermal development, oil fields and the like, when the submersible pump works in water, an impeller rotates at a high speed, the impeller is seriously abraded due to water pressure and running resistance, blades are deformed or even fall off, most of submersible pump impeller assemblies are arranged on the lower surface of an upper wheel shell, so that when the impeller rotates, a continuous water ring is formed in the annular groove to support the impeller and enable the impeller to float and rise, the defect of gap between the impeller and the bottom surface of a diversion shell caused by error accumulation when the impeller assemblies are stacked in multiple stages is avoided, the distance between the impeller and the bottom surface of the diversion shell is further ensured, the operation of the submersible pump is maintained, but when the impeller rotates at a high speed, strong friction can be generated with the diversion cover, the service life of the impeller is influenced, and accordingly, the submersible pump impeller assembly is provided.

Disclosure of Invention

The utility model aims to provide a: in order to solve the problems of the prior art, the impeller assembly of the submersible pump is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the submersible pump impeller assembly comprises a guide shell, a guide cover and an impeller body, wherein the guide shell is of a hollow cylindrical structure, the impeller body is arranged on the lower portion of an inner cavity of the guide shell, a shaft sleeve is arranged on a central axis of the impeller body, the cross section of the inner cavity of the shaft sleeve is regular hexagon, and two auxiliary assemblies are symmetrically arranged on the outer wall of the shaft sleeve;

the auxiliary assembly locates the supplementary cover of fixed down tube upper end including fixed down tube, the rotation of locating the axle sleeve outer wall connecting axle and the cover at fixed down tube upper end middle part, the cavity has been seted up at the connecting axle middle part, it is equipped with the piston board to slide in the cavity, the bottom surface is equipped with expanding spring in the cavity, expanding spring one end is connected with the piston board, connecting axle lateral wall symmetry is seted up two blow vents that are linked together with the cavity is inside, the fixed cover in connecting axle middle part is equipped with the external screw thread cover, the internal thread groove with external screw thread cover matched with is seted up to the top surface in the supplementary cover, supplementary cover upper end middle part seted up with connecting axle matched with opening, opening and internal thread groove communicate, supplementary cover lower extreme middle part is equipped with the sealing washer with fixed down tube matched with, the cavity open end is equipped with the sealing plug, the sealing plug outside is equipped with opening matched with sealing ring, sealing ring inner wall and connecting axle outer wall in close contact with, sealing ring outer wall and opening inner wall in close contact with.

As a further description of the above technical solution:

the lower end of the air guide sleeve is provided with an annular sliding cavity matched with the auxiliary sleeve, and the lower end of the annular sliding cavity is provided with a fillet.

As a further description of the above technical solution:

the auxiliary sleeve is made of stainless steel wear-resistant materials.

As a further description of the above technical solution:

the impeller body sets up to form by last wheel shell, lower wheel shell and a plurality of blade, the lower surface of going up the wheel shell is provided with the annular groove, the annular groove sets up to coaxial line with last wheel shell, and the lower surface of going up the wheel shell set up to the interior surface clearance fit with the blower inlet shell bottom surface, the axle sleeve sets up to stretching out the surface of wheel shell down, and is a plurality of blade surface equipartition is equipped with a plurality of sand grips, and is a plurality of the sand grip outside is the sharp sword form sets up and one end extends outside the blade.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model discloses in, through seting up the smooth chamber of annular at the kuppe lower extreme for supplementary cover is pasting the smooth chamber of annular and is sliding, avoids the impeller high-speed when revolving, takes place strong friction with the kuppe, influences the life of impeller, and through setting up connecting axle and external screw thread cover, the dismantlement of being convenient for realize supplementary cover is changed, can guarantee the inside leakproofness of supplementary cover simultaneously, avoids in water enters into supplementary cover, causes threaded connection department to rust.

Drawings

Fig. 1 shows an external view of a submersible pump impeller assembly provided according to an embodiment of the present invention;

fig. 2 shows a schematic structural diagram of an impeller assembly of a submersible pump provided according to an embodiment of the present invention;

fig. 3 shows a schematic structural diagram of a point a in fig. 2 according to an embodiment of the present invention;

fig. 4 shows a schematic structural diagram at B in fig. 3 according to an embodiment of the present invention.

Illustration of the drawings: 1. a guide shell; 2. a pod; 3. an impeller body; 301. an upper wheel housing; 302. a lower wheel housing; 303. a blade; 304. an annular groove; 305. a convex strip; 4. a shaft sleeve; 5. fixing the diagonal rods; 6. a connecting shaft; 7. a piston plate; 8. a tension spring; 9. a vent; 10. an external thread sleeve; 11. an auxiliary sleeve; 12. a seal ring; 13. a sealing plug; 14. and (4) a sealing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

the impeller assembly of the submersible pump comprises a guide shell 1, a guide cover 2 and an impeller body 3, wherein the guide shell 1 is of a hollow cylindrical structure, the impeller body 3 is arranged at the lower part of an inner cavity of the guide shell 1, a shaft sleeve 4 is arranged on a central axis of the impeller body 3, the inner cavity of the shaft sleeve 4 is arranged to be of a regular hexagon in cross section, and two auxiliary assemblies are symmetrically arranged on the outer wall of the shaft sleeve 4;

the auxiliary assembly is including the fixed down tube 5 of locating the 4 outer walls of axle sleeve, the connecting axle 6 and the auxiliary cover 11 of fixed down tube 5 upper end are located to the rotation of locating fixed down tube 5 upper end middle part, auxiliary cover 11 is made by stainless steel wear-resistant material, the cavity has been seted up at connecting axle 6 middle part, it is equipped with piston plate 7 to slide in the cavity, the bottom surface is equipped with expanding spring 8 in the cavity, 8 one end of expanding spring is connected with piston plate 7, connecting axle 6 lateral wall symmetry has seted up two blow vent 9 that are linked together with the cavity is inside, connecting axle 6 middle part fixed cover is equipped with external screw thread cover 10, the internal thread groove with external screw thread cover 10 matched with is seted up to the top surface in the auxiliary cover 11, auxiliary cover 11 upper end middle part has seted up with connecting axle 6 matched with opening, the opening communicates with the internal thread groove, auxiliary cover 11 lower extreme middle part is equipped with fixed down tube 5 matched with sealing washer 12, the cavity connecting axle open end is equipped with sealing plug 13, the sealing plug 13 outside is equipped with opening matched with sealing ring 14, sealing ring 14 inner wall and 6 outer wall in close contact, sealing ring 14 outer wall and opening in close contact.

Further, the lower end of the air guide sleeve 2 is provided with an annular sliding cavity matched with the auxiliary sleeve 11, the lower end of the annular sliding cavity is provided with a fillet, the contact area between the auxiliary sleeve 11 and the annular sliding cavity is small, the friction resistance is reduced, and the high-speed rotation of the impeller body 3 is guaranteed.

Further, impeller body 3 sets up to be by last wheel shell 301, lower wheel shell 302 and a plurality of blade 303 are constituteed, the lower surface of going up wheel shell 301 is provided with annular groove 304, annular groove 304 sets up to be coaxial with last wheel shell 301, and the lower surface of going up wheel shell 301 sets up to the internal surface clearance fit with the bottom surface of blower inlet casing 1, axle sleeve 4 sets up to stretching out the surface of lower wheel shell 302, a plurality of blade 303 surface equipartition are equipped with a plurality of sand grips 305, a plurality of sand grips 305 outside is the sharp edge form and sets up and one end extends outside blade 303.

The working principle is as follows: when the submersible pump is used, the impeller rotates at a high speed to drive the blade 303 to rotate, laminar flow can be generated in water through the convex strips 305 arranged on the blade 303, the generated vortex is cut into smaller vortex at the outlet end of the blade 303, the water flow is ensured to be closer to ideal water flow, the water flow speed is accelerated, and stable operation of the submersible pump is realized, the fixed inclined rods 5 which are symmetrically arranged and the auxiliary sleeve 11 which is sleeved on the fixed inclined rods 5 are arranged, so that the coaxiality of the air guide sleeve 2 and the shaft sleeve 4 is ensured in the installation process of the air guide sleeve 2, meanwhile, the impeller body 3 rotates to drive the shaft sleeve 4 to rotate, the shaft sleeve 4 rotates to drive the fixed inclined rods 5 to rotate, further, the auxiliary sleeve 11 is driven to rotate, strong friction with the air guide sleeve in the high-speed rotation process of the impeller is avoided, the service life of the impeller is influenced, when the auxiliary sleeve 11 needs to be replaced, a worker can press the sealing plug 13 with one hand, the rotation of the connecting shaft 6 is limited, then the auxiliary sleeve 11 is rotated by the other hand, so that the auxiliary sleeve 11 is gradually separated from the external thread sleeve 10, in the process, negative pressure is generated in the auxiliary cylinder 11, further the extension spring 8 is compressed, the upper part inside the cavity is communicated with the inside of the auxiliary sleeve 11, the sealing plug 13 is convenient to take out, the auxiliary sleeve 11 is replaced, when the auxiliary sleeve 11 is installed, firstly, the auxiliary sleeve 11 is ensured not to be provided with the sealing plug 13, then, one hand presses the connecting shaft 6, the other hand screws the auxiliary sleeve 11 into the external thread sleeve 10, then, only the sealing plug 13 is required to be gradually plugged into the cavity on the connecting shaft 6, in the process, air in the cavity is squeezed, the piston plate 7 moves to enable the extension spring 8 to move, and further, the upper part inside the cavity is communicated with the inside of the auxiliary sleeve 11, make the air in the cavity in the supplementary cover of vent 9 entering, fill in the back completely, expanding spring 8 resets fast for the inside top of cavity does not communicate with supplementary 11 insides of cover, can outwards promote a bit sealing plug 13 simultaneously, and then guarantees sealing plug 13's stability, makes sealing plug 13 be difficult to drop.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The submersible pump impeller assembly comprises a guide shell (1), a guide cover (2) and an impeller body (3), wherein the guide shell (1) is of a hollow cylinder structure, the impeller body (3) is arranged on the lower portion of an inner cavity of the guide shell (1), a shaft sleeve (4) is arranged on a central axis of the impeller body (3), and the inner cavity of the shaft sleeve (4) is arranged to be a regular hexagon in cross section, and the submersible pump impeller assembly is characterized in that two auxiliary assemblies are symmetrically arranged on the outer wall of the shaft sleeve (4);

supplementary subassembly is including fixed down tube (5), the rotation of locating axle sleeve (4) outer wall locate connecting axle (6) and the cover of fixed down tube (5) upper end middle part and supplementary cover (11) of fixed down tube (5) upper end, the cavity has been seted up at connecting axle (6) middle part, it is equipped with piston plate (7) to slide in the cavity, the bottom is equipped with expanding spring (8) in the cavity, expanding spring (8) one end is connected with piston plate (7), connecting axle (6) lateral wall symmetry has been seted up two blow vent (9) that are linked together with the cavity is inside, connecting axle (6) middle part fixed cover is equipped with external thread cover (10), supplementary cover (11) interior top surface is seted up and is connected with external thread cover (10) matched with internal thread groove, supplementary cover (11) upper end middle part has been seted up and is connected axle (6) matched with opening, opening and internal thread groove communicate, supplementary cover (11) lower extreme middle part is equipped with opening and fixed down tube (5) matched with sealing washer (12), the cavity open end is equipped with opening (13), the sealing plug (13) outside is equipped with opening matched with sealing ring (14), sealing ring (14) inseparable contact sealing ring (14) inner wall and sealing plug (14), sealing plug (14) outer wall.

2. The impeller assembly of the submersible pump according to claim 1, characterized in that the lower end of the air guide sleeve (2) is provided with an annular sliding cavity matched with the auxiliary sleeve (11), and the lower end of the annular sliding cavity is provided with a rounded corner.

3. The submersible pump impeller assembly according to claim 1, characterized in that the auxiliary sleeve (11) is made of a stainless steel wear resistant material.

4. The submersible pump impeller assembly according to claim 1, wherein the impeller body (3) is provided to be composed of an upper impeller shell (301), a lower impeller shell (302) and a plurality of blades (303), an annular groove (304) is formed in the lower surface of the upper impeller shell (301), the annular groove (304) is coaxial with the upper impeller shell (301), the lower surface of the upper impeller shell (301) is in clearance fit with the inner surface of the bottom surface of the guide shell (1), the shaft sleeve (4) is provided to extend out of the outer surface of the lower impeller shell (302), a plurality of convex strips (305) are uniformly distributed on the outer surface of the blades (303), and a plurality of convex strips (305) are arranged outside the convex strips (305) in a sharp edge shape and one end of each convex strip extends out of the blades (303).