CN214145911U

CN214145911U - High-lift single-stage centrifugal pump and impeller structure

Info

Publication number: CN214145911U
Application number: CN202022969187.XU
Authority: CN
Inventors: 王峰
Original assignee: Hebei Jifu Mechanical Equipment Co ltd
Current assignee: Hebei Jifu Mechanical Equipment Co ltd
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-09-07
Anticipated expiration: 2030-12-11

Abstract

The utility model belongs to the technical field of the centrifugal pump technique and specifically relates to a high-lift single-stage centrifugal pump and impeller structure, including the pump body and impeller, casing one side of the pump body is equipped with the front end housing through bolted connection, be equipped with the entry flange on the front end housing, one side of impeller is equipped with auxiliary impeller, the last filter mesh hole that is equipped with of auxiliary impeller, the impartial angle in one side that the impeller is relative with auxiliary impeller is equallyd divide and is equipped with a plurality of blades, the blade is arc blade structure, the fixed integral key shaft that is equipped with in one side of impeller, the last spline groove that is equipped with of auxiliary impeller, auxiliary impeller one side is equipped with first spring holder, the tip of integral key shaft slides and cup joints and is equipped with the second spring holder, the clamp connection is equipped with adjusting spring between first spring holder and second spring holder, one side that adjusting spring was kept away from to the second spring holder is equipped with adjusting nut, be equipped with the external screw thread on the integral key shaft. The utility model discloses the consumption is little, and is energy-concerving and environment-protective, has market prospect, is fit for promoting.

Description

High-lift single-stage centrifugal pump and impeller structure

Technical Field

The utility model relates to a centrifugal pump technical field especially relates to a high-lift single-stage centrifugal pump and impeller structure.

Background

The centrifugal pump has various forms such as vertical type, horizontal type, single stage, multistage, single suction, double suction, self suction and the like. Centrifugal pumps operate by causing water to move centrifugally as a result of the rotation of an impeller. Before the water pump is started, a pump shell and a water suction pipe are filled with water, a motor is started, a pump shaft drives an impeller and the water to rotate at a high speed, the water is thrown to the outer edge of the impeller and flows into a pressurized water pipeline of the water pump through a flow channel of a volute pump shell, however, due to long-time work, the internal bearing is seriously abraded, the water pump is troublesome to replace, the rotating speed of the driving motor needs to be greatly increased when the lift is increased, the power consumption is high, and therefore a high-lift single-stage centrifugal pump and an impeller structure are provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that has current high-lift single-stage centrifugal pump consumption among the prior art big, the maintenance of being not convenient for, and a high-lift single-stage centrifugal pump and impeller structure that provide.

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

the utility model provides a high-lift single-stage is impeller structure for centrifugal pump, includes the impeller, one side of impeller is equipped with supplementary impeller, be equipped with the filtration mesh hole on the supplementary impeller, the impartial angle in one side that impeller and supplementary impeller are relative is equallyd divide and is equipped with a plurality of blades, the blade is arc blade structure, the blade on impeller and the supplementary impeller is mirror symmetry and sets up, the fixed integral key shaft that is equipped with in one side of impeller, be equipped with on the supplementary impeller with integral key shaft assorted spline groove, one side that supplementary impeller kept away from the impeller is equipped with first spring holder, the tip of integral key shaft slides and cup joints and is equipped with the second spring holder, the clamp connection is equipped with adjusting spring between first spring holder and second spring holder, one side that adjusting spring was kept away from to the second spring holder is equipped with adjusting nut, be equipped with on the integral key shaft with adjusting nut assorted external screw thread.

Preferably, the blades are arranged perpendicular to the impeller, the vertical width of the blades close to the center of the impeller is smaller than the vertical width of the blades far away from the center of the impeller, and the blades on the impeller and the blades on the auxiliary impeller are arranged in an equiangular staggered manner.

The utility model provides a high-lift single-stage centrifugal pump, high-lift single-stage centrifugal pump include the pump body and in any one of the aforesaid impeller structure, casing one side of the pump body is equipped with the front end housing through bolted connection, be equipped with the entry flange on the front end housing, casing one side of the pump body is equipped with the shaft coupling, the one end of shaft coupling carries out power transmission through drive shaft and driving motor, the other end of shaft coupling carries out power transmission through transmission shaft and impeller.

Preferably, the top of the shell of the pump body is provided with an outlet pipe, the inner wall of the pump body is provided with a centrifugal opening communicated with the outlet pipe, and the inner wall of the centrifugal opening is tangent to the outer side of the blade.

The utility model provides a pair of high-lift single-stage centrifugal pump and impeller structure, beneficial effect lies in: when the utility model is used, the adjusting nut is adjusted from the inlet flange in advance, the elastic potential energy of the compressed reserve of the adjusting spring is matched with the liquid with the required lift, when the impeller and the auxiliary impeller operate, the liquid from the inlet flange is filtered through the filter mesh holes, the centrifugal force generated by the staggered blades between the impeller and the auxiliary impeller is transported to the outlet pipe, when the liquid input flow rate of the inlet flange is reduced, the rotating speed of the driving motor is increased, the auxiliary impeller overcomes the elastic force of the adjusting spring due to the centrifugal force, the distance between the impeller and the auxiliary impeller is increased, because the vertical width of the blade close to the center of the impeller is smaller than the structural design of the vertical width of the blade far away from the center of the impeller, under the condition that the coincidence area outside the blade is unchanged, the coincidence area of the center of the blade is reduced to be not overlapped, thereby the liquid of the inlet flange has larger flow rate and pressure intensity, and then can further promote the lift with less energy consumption, the utility model discloses the consumption is little, and is energy-concerving and environment-protective, and the maintenance of being convenient for has market prospect, is fit for promoting.

Drawings

Fig. 1 is a schematic structural view of a high-lift single-stage centrifugal pump and an impeller structure provided by the present invention;

fig. 2 is an explosion structure diagram of a high-lift single-stage centrifugal pump and impeller structure provided by the utility model;

fig. 3 is a schematic view of a partial cross-sectional structure of a high-lift single-stage centrifugal pump and an impeller structure provided by the present invention;

fig. 4 is a schematic structural view of the stacked blades of the present invention;

FIG. 5 is a schematic view of the blade of the present invention in a separated configuration;

in the figure: the centrifugal pump comprises a pump body 1, a front end cover 11, an outlet pipe 12, a centrifugal notch 121, an inlet flange 13, a coupler 2, a driving shaft 3, an impeller 4, a transmission shaft 41, a spline shaft 42, an auxiliary impeller 5, a filter mesh 51, a spline groove 52, a first spring seat 53, an adjusting spring 54, a second spring seat 55, an adjusting nut 56 and blades 6.

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.

Referring to fig. 1-5, a high-lift single-stage centrifugal pump and impeller structure comprises a pump body 1 and an impeller 4, wherein a front end cover 11 is arranged on one side of a shell of the pump body 1 through bolt connection, an inlet flange 13 is arranged on the front end cover 11, an auxiliary impeller 5 is arranged on one side of the impeller 4, a coupler 2 is arranged on one side of the shell of the pump body 1, one end of the coupler 2 is in power transmission with a driving motor through a driving shaft 3, and the other end of the coupler 2 is in power transmission with the impeller 4 through a transmission shaft 41

The auxiliary impeller 5 is provided with a filter mesh 51, the impeller 4 and one side opposite to the auxiliary impeller 5 are equally provided with a plurality of blades 6 at equal angles, the blades 6 are of an arc-shaped blade structure, the top of the shell of the pump body 1 is provided with an outlet pipe 12, the inner wall of the pump body 1 is provided with a centrifugal opening 121 communicated with the outlet pipe 12, and the inner wall of the centrifugal opening 121 is tangent to the outer sides of the blades 6.

Impeller 4 is the mirror symmetry setting with blade 6 on the supplementary impeller 5, the perpendicular impeller 4 setting of blade 6, the perpendicular width that blade 6 is close to the impeller 4 centre of a circle is less than the perpendicular width that blade 6 keeps away from the impeller 4 centre of a circle, blade 6 on the impeller 4 and the crisscross setting of angle such as blade 6 on the supplementary impeller 5, one side of impeller 4 is fixed and is equipped with integral key shaft 42, be equipped with on the supplementary impeller 5 with integral key shaft 42 assorted spline groove 52, one side that supplementary impeller 5 kept away from impeller 4 is equipped with first spring holder 53, the tip slip of integral key shaft 42 cup joints and is equipped with second spring holder 55, the clamp is equipped with adjusting spring 54 between first spring holder 53 and second spring holder 55, one side that adjusting spring 54 was kept away from to second spring holder 55 is equipped with adjusting nut 56, be equipped with on the integral key shaft 42 with adjusting nut 56 assorted external screw thread.

When the utility model is used, the adjusting nut 56 is adjusted from the inlet flange 13 in advance, the elastic potential energy of the compressed and stored adjusting spring 54 is matched with the liquid with the need of lift, when the impeller 4 and the auxiliary impeller 5 run, the liquid from the inlet flange 13 is filtered through the filter mesh 51, the centrifugal force generated by the staggered blades 6 between the impeller 4 and the auxiliary impeller 5 is transported to the outlet pipe 12, when the liquid input flow rate of the inlet flange 13 is slowed down, the rotating speed of the driving motor is increased, the auxiliary impeller 5 overcomes the elastic force of the adjusting spring 54 due to the centrifugal force, the distance between the impeller 4 and the auxiliary impeller 5 is increased, because the vertical width of the blades 6 close to the circle center of the impeller 4 is smaller than the structural design that the vertical width of the blades 6 far away from the circle center of the impeller 4, under the condition that the overlapping area outside the blades 6 is not changed, the overlapping area of the circle center of the blades 6 is reduced to be not overlapped, thereby make the liquid of entry flange 13 through having bigger velocity of flow and pressure, and then can further promote the lift with less energy consumption, the utility model discloses the consumption is little, and is energy-concerving and environment-protective, has market prospect, is fit for promoting.

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 utility model provides a high-lift single-stage impeller structure for centrifugal pump, includes impeller (4), its characterized in that, one side of impeller (4) is equipped with auxiliary impeller (5), be equipped with filter mesh hole (51) on auxiliary impeller (5), one side equalling angle that impeller (4) and auxiliary impeller (5) are relative is equallyd divide and is equipped with a plurality of blades (6), blade (6) are arc blade structure, blade (6) on impeller (4) and auxiliary impeller (5) are mirror symmetry and set up, one side of impeller (4) is fixed and is equipped with integral key shaft (42), be equipped with on auxiliary impeller (5) with integral key shaft (42) assorted spline groove (52), one side that impeller (4) were kept away from in auxiliary impeller (5) is equipped with first spring holder (53), the tip sliding sleeve of integral key shaft (42) is equipped with second spring holder (55), an adjusting spring (54) is clamped between the first spring seat (53) and the second spring seat (55), an adjusting nut (56) is arranged on one side, away from the adjusting spring (54), of the second spring seat (55), and an external thread matched with the adjusting nut (56) is arranged on the spline shaft (42).

2. An impeller structure for a high-lift single-stage centrifugal pump according to claim 1, wherein the blades (6) are arranged perpendicular to the impeller (4), the vertical width of the blades (6) close to the center of the impeller (4) is smaller than the vertical width of the blades (6) far away from the center of the impeller (4), and the blades (6) on the impeller (4) and the blades (6) on the auxiliary impeller (5) are arranged in an equiangular staggered manner.

3. The high-lift single-stage centrifugal pump is characterized by comprising a pump body (1) and an impeller structure in any one of claims 1 to 2, wherein a front end cover (11) is arranged on one side of a shell of the pump body (1) through bolt connection, an inlet flange (13) is arranged on the front end cover (11), a coupler (2) is arranged on one side of the shell of the pump body (1), one end of the coupler (2) is in power transmission with a driving motor through a driving shaft (3), and the other end of the coupler (2) is in power transmission with an impeller (4) through a transmission shaft (41).

4. A high-lift single-stage centrifugal pump according to claim 3, wherein the top of the casing of the pump body (1) is provided with an outlet pipe (12), the inner wall of the pump body (1) is provided with a centrifugal notch (121) communicated with the outlet pipe (12), and the inner wall of the centrifugal notch (121) is tangentially arranged with the outer side of the blade (6).