CN217107540U

CN217107540U - Impeller and well pump

Info

Publication number: CN217107540U
Application number: CN202221040560.6U
Authority: CN
Inventors: 韩鑫; 莫巧平; 梁伟明; 蒋伟; 赵志鹏; 张规划
Original assignee: Zhejiang Shimge Pump Co Ltd
Current assignee: Zhejiang Shimge Pump Co Ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-08-02
Anticipated expiration: 2032-04-28

Abstract

The utility model relates to an impeller and well pump, the problem of rocking and arousing between impeller shaft handle and the pump shaft of solving the prior art existence, the technical scheme of adoption: the impeller shaft handle is internally provided with a concave ring, an elastic embedded ring is embedded in the concave ring, the cross section size of the embedded ring shaft hole in the elastic embedded ring is smaller than that of the shaft handle shaft hole, and the hole wall of the elastic embedded ring is used for being matched with a pump shaft. The method has the following effects: improve the structure of impeller shaft handle, add the elasticity becket at the inner wall of impeller shaft handle, the inner wall of impeller shaft handle does not contact with the pump shaft, the pore wall and the pump shaft contact of elasticity becket, the energy that the water pump operation acutely rocked the production is absorbed, the buffering by the elasticity becket for the impeller amplitude of rocking reduces by a wide margin, effectively promotes hydraulic performance, effectively reduces the noise of water pump operation, and improves impeller life.

Description

Impeller and well pump

Technical Field

The utility model relates to an impeller and well pump especially relate to an improve impeller and well pump of impeller structure.

Background

The impeller string of the well pump is formed by dozens or even hundreds of same impellers on a pump shaft, a gap of 0.2mm is generally formed between an impeller shaft handle and the pump shaft, and due to the existence of the gap, when the well pump runs at a high speed, hundreds of impellers on the impeller string can shake violently, the hydraulic performance and the service life of the impellers are influenced, and huge noise is generated.

Disclosure of Invention

An object of the utility model is to solve the above-mentioned problem that prior art exists and provide an impeller and well pump, improve impeller structure, especially, improve the structure of impeller shaft handle, add the elasticity becket at the inner wall of impeller shaft handle, when being applied to the well pump, the inner wall of impeller shaft handle does not contact with the pump shaft, the pore wall and the pump shaft contact of elasticity becket, the energy that the water pump operation acutely rocked the production is absorbed by the elasticity becket, the buffering, make the impeller amplitude of rocking reduce by a wide margin, effectively promote hydraulic performance, effectively reduce the noise of water pump operation, and improve impeller life.

The above technical purpose of the present invention is mainly solved by the following technical solutions: the impeller, including the impeller shaft handle, set up impeller main part on the outer wall of impeller shaft handle, set up the shaft handle shaft hole that both ends link up in the impeller shaft handle, its characterized in that set up the concave ring on the shaft hole wall of impeller shaft handle, the elasticity becket is established to the inlaying in the concave ring, the cross sectional dimension in the becket shaft hole on the elasticity becket is less than the cross sectional dimension in shaft handle shaft hole, the pore wall of elasticity becket is used for cooperating with the pump shaft.

Improve impeller structure, especially improve the structure of impeller shaft handle, add the elasticity becket at the inner wall of impeller shaft handle, when being applied to the well pump, the inner wall of impeller shaft handle does not contact with the pump shaft, the pore wall and the pump shaft contact of elasticity becket, the energy that the water pump operation acutely rocked the production is absorbed, the buffering by the elasticity becket for the impeller amplitude of rocking reduces by a wide margin, effectively promotes hydraulic performance, effectively reduces the noise of water pump operation, and improves impeller life.

As further perfection and supplement to above-mentioned technical scheme, the utility model discloses a following technical measure:

the shaft hole wall of the impeller shaft handle is provided with at least two concave rings arranged at intervals, and the elastic embedded rings are embedded in the concave rings respectively. The wall of the shaft hole of the impeller shaft handle can be provided with a plurality of corresponding concave rings and elastic embedded rings, so that the impeller shaft handle is supported by the elastic embedded rings in a balanced manner, and the impeller shaft handle is not contacted with a pump shaft.

The preferred scheme is as follows: an elastic embedded ring (namely a rubber embedded ring) is embedded at each of two ends of the impeller shaft handle, and specifically: the concave ring sets up the tip of impeller arbor handle, the concave ring is both sides enclosed structure, and the outer end is uncovered formula, and the inner is the annular diapire, stands in annular lateral wall in the annular diapire outer fringe, the annular diapire is used for bearing the inner terminal surface of elasticity caulking ring.

In order to prevent the elastic insert ring from rotating, an anti-rotation bulge is arranged on the outer wall of the elastic insert ring, a corresponding recess is arranged on the concave ring, and the bulge is inserted into the recess.

In order to have a better anti-rotation effect, the anti-rotation bulges are at least two and are distributed in central symmetry, and one anti-rotation bulge is inserted into one corresponding dent.

The elastic embedded ring is a rubber embedded ring, and the hole wall of the elastic embedded ring is hexagonal prism-shaped. The hole of impeller shaft handle and the hole of rubber insert ring all are interior hexagonal hole, but the interior hexagonal hole edge distance of rubber insert is little than the interior hexagonal hole edge distance of impeller, and the pump shaft is hexagonal pump shaft, and the interior hexagonal hole and the hexagonal pump shaft adaptation of rubber insert ring, at water pump operation in-process, the interior hexagonal hole wall and the pump shaft contact of rubber insert ring, and the interior hexagonal hole wall of impeller is by the separation of rubber insert, not with the pump shaft contact.

In order to facilitate die sinking, production processing and assembly, the impeller main body and the impeller shaft handle are of an integral structure.

Another subject matter of the protection related to the present document is a well pump, which comprises a pump casing, a pump shaft arranged in the pump casing, and an impeller string arranged on the pump shaft, wherein the impeller string comprises a plurality of impellers, and the impellers are arranged on the pump shaft.

Under the normal condition, the clearance between the inner wall of the impeller shaft handle and the pump shaft is more than or equal to 0.2mm, the inner wall of the impeller shaft handle is not contacted with the pump shaft, and the conditions of noise generation, hydraulic performance loss, service life reduction and the like caused by collision are avoided.

In order to avoid mutual collision of adjacent impeller shaft handles, the adjacent impeller shaft handles are arranged at intervals.

The utility model discloses beneficial effect who has: improve impeller structure, especially improve the structure of impeller shaft handle, add the elasticity becket at the inner wall of impeller shaft handle, when being applied to the well pump, the inner wall of impeller shaft handle does not contact with the pump shaft, the pore wall and the pump shaft contact of elasticity becket, the energy that the water pump operation acutely rocked the production is absorbed, the buffering by the elasticity becket for the impeller amplitude of rocking reduces by a wide margin, effectively promotes hydraulic performance, effectively reduces the noise of water pump operation, and improves impeller life.

Drawings

Fig. 1 is a schematic structural diagram of an impeller according to the present invention.

Fig. 2 is a schematic view of the structure of fig. 1 from another view angle.

Fig. 3 is a schematic sectional view of an impeller according to the present invention.

Fig. 4 is a schematic structural view of the elastic insert ring according to the present invention.

Fig. 5 is a schematic sectional view of the impeller and the pump shaft according to the present invention.

Fig. 6 is a schematic sectional view of an impeller string portion of a well pump according to the present invention.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): as shown in fig. 1-6, the impeller comprises an impeller shaft handle 1 and an impeller main body arranged on the outer wall of the impeller shaft handle, wherein a shaft handle shaft hole 2 with two through ends is arranged in the impeller shaft handle, a concave ring 3 is arranged on the shaft hole wall of the impeller shaft handle, an elastic embedded ring 4 is embedded in the concave ring, the cross section size of the embedded ring shaft hole on the elastic embedded ring is smaller than that of the shaft handle shaft hole, and the hole wall of the elastic embedded ring is used for being matched with a pump shaft.

Preferably, the shaft hole wall of the impeller shaft handle is provided with at least two concave rings arranged at intervals, and the elastic embedded rings are respectively embedded in the concave rings. The wall of the shaft hole of the impeller shaft handle can be provided with a plurality of corresponding concave rings and elastic embedded rings, so that the impeller shaft handle is supported by the elastic embedded rings in a balanced manner, and the impeller shaft handle is not contacted with a pump shaft.

In order to prevent the elastic insert ring from rotating, an anti-rotation bulge 41 is arranged on the outer wall of the elastic insert ring, a corresponding recess is arranged on the concave ring, and the bulge is inserted into the recess.

Another subject matter of the present disclosure is a well pump, which includes a pump casing, a pump shaft 5 disposed in the pump casing, and an impeller string 6 disposed on the pump shaft, wherein the impeller string includes a plurality of impellers disposed on the pump shaft, and the impeller is the impeller according to the above aspects, the inner wall of the impeller shaft is in clearance fit with the pump shaft, and the hole wall of the elastic insert ring is in contact fit with the pump shaft.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention. In the above embodiments, the present invention may have various modifications and variations. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The impeller, including the impeller shaft handle, set up impeller main part on the outer wall of impeller shaft handle, set up the shaft handle shaft hole that both ends link up in the impeller shaft handle, its characterized in that set up the concave ring on the shaft hole wall of impeller shaft handle, the elasticity becket is established to the inlaying in the concave ring, the cross sectional dimension in the becket shaft hole on the elasticity becket is less than the cross sectional dimension in shaft handle shaft hole, the pore wall of elasticity becket is used for cooperating with the pump shaft.

2. The impeller according to claim 1, characterized in that the axial hole wall of the impeller shaft shank is provided with at least two concave rings arranged at intervals, and the concave rings are respectively embedded with the elastic embedded rings.

3. The impeller according to claim 1 or 2, characterized in that the concave ring is arranged at the end of the impeller shaft, the concave ring is of a two-side surrounding structure, the outer end is open, the inner end is an annular bottom wall, and an annular side wall stands on the outer edge of the annular bottom wall and is used for bearing against the inner end face of the elastic embedded ring.

4. The impeller according to claim 1 or 2, characterized in that the outer wall of said elastic insert ring is provided with anti-rotation protrusions, said concave ring is provided with corresponding recesses, said protrusions are inserted into said recesses.

5. The impeller according to claim 3, characterized in that the outer wall of said elastic insert ring is provided with anti-rotation protrusions, and said concave ring is provided with corresponding recesses, into which said protrusions are inserted.

6. The impeller according to claim 5, wherein the at least two anti-rotation protrusions are arranged in a central symmetry, and one anti-rotation protrusion is inserted into one corresponding recess.

7. The impeller according to claim 6, characterised in that said elastic insert ring is a rubber insert ring, the walls of the holes of said elastic insert ring having a hexagonal prismatic shape.

8. The impeller of claim 7, wherein said impeller body and said impeller shaft are of a unitary construction.

9. The well pump comprises a pump shell, a pump shaft arranged in the pump shell and an impeller string arranged on the pump shaft, wherein the impeller string comprises a plurality of impellers, the impellers are arranged on the pump shaft, the well pump is characterized in that the impellers are the impellers in any one of claims 1 to 8, the inner wall of a shaft handle of each impeller is in clearance fit with the pump shaft, and the hole wall of each elastic embedded ring is in contact fit with the pump shaft.

10. A well pump as defined in claim 9, wherein the clearance between the inner wall of the impeller hub and the pump shaft is greater than or equal to 0.2mm and is spaced adjacent the impeller hub.