CN220929747U - Impeller of centrifugal pump - Google Patents

Abstract

The utility model discloses a centrifugal pump impeller which comprises a wheel disc, wherein a shaft hole is formed in the middle of the wheel disc, a plurality of blades are fixedly arranged on the upper surface of the wheel disc around the circumference of the shaft hole, a plurality of detachable flow dividing blocks are arranged on the upper surface of the wheel disc and positioned between the blades, connecting blocks are fixedly arranged in the middle of the lower surface of the flow dividing blocks, a plurality of mounting grooves corresponding to the positions of the connecting blocks are formed in the wheel disc, a plurality of groups of two fixing blocks corresponding to the positions of the mounting grooves are fixedly arranged on the lower surface of the wheel disc, the lower end of the connecting block penetrates through the mounting grooves and is inserted between the two fixing blocks, and bolts are connected between the fixing blocks and the connecting blocks. When only part of the flow dividing blocks are arranged on the wheel disc, the arrangement of the blades and the flow dividing blocks on the wheel disc is unevenly distributed, and the arrangement modes with different intervals are different in pressure intensity generated during working, so that pulses can be formed due to alternate pressure changes during the rotation of the wheel disc, fluid can repeatedly impact the flow channel, and the flow channel is prevented from being blocked.

Description

Impeller of centrifugal pump

Technical Field

The utility model relates to the technical field of impellers, in particular to a centrifugal pump impeller.

Background

The centrifugal pump is a pump that conveys liquid by centrifugal force generated when the impeller rotates, and is operated by centrifugal motion of water by rotation of the impeller. Before the water pump is started, the pump shell and the water suction pipe are filled with water, then the motor is started, the pump shaft drives the impeller and the water to do high-speed rotation movement, the water is centrifugally moved and thrown to the outer edge of the impeller, and the water flows into the water pressing pipeline of the water pump through the runner of the volute pump shell.

In the prior art, most centrifugal pump impellers are of an integrated structure, when the impellers leave the factory, the flow velocity of water discharged by the impellers is fixed, the water cannot be adjusted and changed along with the demands, and the centrifugal pump is easy to cause flow channel blockage after being used for a long time because of impurities or other solids contained in fluid.

Disclosure of utility model

The utility model aims to provide a centrifugal pump impeller to solve the problems that the flow rate of the impeller in the prior art is fixed, the impeller cannot be adjusted and changed according to requirements, and the flow channel is easy to be blocked after the centrifugal pump is used for a long time because the fluid contains impurities or other solids.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a centrifugal pump impeller, includes the rim plate, the shaft hole has been seted up at the rim plate middle part, and the rim plate upper surface has set firmly a plurality of blades around shaft hole circumference, the rim plate upper surface is located and is provided with a plurality of detachable reposition of redundant personnel pieces between the blade, reposition of redundant personnel piece lower surface middle part all is fixed with the connecting block, set up a plurality of mounting grooves that correspond with the connecting block position on the rim plate, and the rim plate lower surface fixation has two fixed blocks that multiunit and mounting groove position correspond, insert between two fixed blocks after the connecting block lower extreme passes the mounting groove, be connected with the bolt between fixed block and the connecting block.

Preferably, the blades and the flow dividing blocks are uniformly distributed on the upper surface of the wheel disc at intervals.

Preferably, the blades and the flow dividing blocks are arc concave plates.

Preferably, the inner wall of the shaft hole is provided with a limit groove.

Preferably, one end of the blade close to the shaft hole is provided with an arc surface.

Compared with the prior art, the utility model has the beneficial effects that:

According to the utility model, the wheel disc, the blades, the split blocks, the connecting blocks, the mounting grooves, the fixed blocks and the bolts are arranged, a certain number of split blocks are selected to be mounted on the wheel disc according to the requirement of the centrifugal pump on the fluid flow velocity, the arrangement of the split blocks increases the flow velocity of effluent, the number of the split blocks on the wheel disc is increased or reduced, the adjustment on the fluid flow velocity can be realized, when only part of the split blocks are mounted on the wheel disc, the blades and the split blocks are unevenly distributed on the wheel disc, the arrangement modes of different intervals are different in pressure generated during working, so that pulses can be formed due to alternate pressure changes in the rotation process of the wheel disc, the fluid can repeatedly impact the flow channel, and the blockage of the flow channel is avoided.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic elevation structure of the present utility model;

FIG. 3 is a first exploded view of the present utility model;

Fig. 4 is a second exploded view of the present utility model.

In the figure: 1. a wheel disc; 2. a blade; 3. a shunt block; 4. a connecting block; 5. a mounting groove; 6. a fixed block; 7. a bolt; 8. a shaft hole; 9. a limit groove; 10. a cambered surface.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, in the embodiment of the utility model, a centrifugal pump impeller comprises a wheel disc 1, a shaft hole 8 is formed in the middle of the wheel disc 1, a plurality of blades 2 are fixedly arranged on the upper surface of the wheel disc 1 around the circumference of the shaft hole 8, a plurality of detachable flow dividing blocks 3 are arranged between the blades 2 on the upper surface of the wheel disc 1, the flow velocity of discharged water is increased by the arrangement of the flow dividing blocks 3, when only part of the flow dividing blocks 3 are installed on the wheel disc 1, the blades 2 and the flow dividing blocks 3 are unevenly distributed on the wheel disc 1, the distances between the adjacent blades 2, the flow dividing blocks 3 and the flow dividing blocks 3 are different, the pressure generated by different spaces in working is different, so that pulses can be formed due to the alternate change of the pressure, fluid repeatedly impacts a flow channel, the flow channel is avoided from being blocked, the number of the flow dividing blocks 3 on the wheel disc 1 can be increased or reduced, the adjustment of fluid flow velocity can be realized, the middle of the lower surface of the flow dividing blocks 3 is fixedly provided with a connecting block 4, when only part of the flow dividing blocks 3 is installed on the wheel disc 1, a plurality of installation grooves 5 corresponding to the positions of the flow dividing blocks 4 are formed in the wheel disc 1, the positions of the wheel disc 4 are inserted into the installation grooves 5, the installation grooves 5 are correspondingly arranged between the two sets of the flow dividing blocks 4 and the connection blocks 4 are fixedly connected with the lower than the corresponding connection blocks 6 through the corresponding connection blocks 6, and the connection blocks 6 are fixedly arranged at the positions of the lower end 6 of the connection blocks 6 and fixedly arranged between the connection blocks 6 and the connection blocks 6 are fixedly arranged at the positions 6 and the connection blocks are fixedly arranged at the positions 6 and 6.

Referring to fig. 1, the blades 2 and the splitter blocks 3 are uniformly arranged on the upper surface of the wheel disc 1 at intervals, and when only part of the splitter blocks 3 are mounted on the wheel disc 1, the arrangement of the blades 2 and the splitter blocks 3 on the wheel disc 1 is unevenly distributed;

Referring to fig. 1, the blades 2 and the flow dividing blocks 3 are arc concave plates, and the arrangement of the arc concave surfaces of the blades 2 and the flow dividing blocks 3 ensures that fluid is rapid and smooth when being thrown out;

Referring to fig. 1, a limiting groove 9 is formed in the inner wall of the shaft hole 8, and the limiting groove 9 enables the shaft to be clamped into the shaft hole 8, so that the shaft and the wheel disc 1 rotate relatively when the shaft rotates;

Referring to fig. 1 and 3, one end of the blade 2, which is close to the shaft hole 8, is provided with an arc surface 10, one end of the blade 2, which is close to the shaft hole 8, is generally square and is arranged at an included angle with the wheel disc 1, strip impurities in the fluid are easy to be blocked at dead angles between the square end and the wheel disc 1, cleaning is not easy to be carried out, and the arrangement of the arc surface 10 prevents edges of the square from hooking the strip impurities.

The working principle and the using flow of the utility model are as follows: during the use, according to centrifugal pump to fluid velocity of flow demand, select the reposition of redundant personnel piece 3 of certain quantity, insert mounting groove 5 with connecting block 4, mounting groove 5 is spacing connecting block 4, connecting block 4 lower extreme flushes with fixed block 6, through bolt 7 with connecting block 4 fixed block 6 fixed connection together, realize the installation of reposition of redundant personnel piece 3, the velocity of flow of water has been increased in the setting of reposition of redundant personnel piece 3, then increase or reduce the quantity of reposition of redundant personnel piece 3 on rim plate 1, can realize the adjustment to fluid velocity of flow, the blade 2, the setting of reposition of redundant personnel piece 3 arc concave surface makes the fluid be thrown out quick and smooth when just when only part reposition of redundant personnel piece 3 installs on rim plate 1, and the range non-uniform distribution of blade 2 and reposition of redundant personnel piece 3 on rim plate 1, then the adjacent blade 2, reposition of redundant personnel piece 3 and reposition of redundant personnel piece 3, the distance difference between the reposition of redundant personnel piece 3 is different, the pressure difference that the different interval produced at the during operation, consequently, in rim plate 1 rotates the in-process, can form the pulse because of pressure alternation, make the fluid relapse the runner blocks up, the one end that blade 2 is close to shaft hole 8 is easy for the square angle, and is the corner, and is difficult to be arranged with the strip-shaped side angle, the edge between the arc surface is avoided in the arc-shaped side angle of the arc surface of the corner 10 in the rim plate 1, the corner is easy to be avoided to be hooked with the corner, the corner is set up to the corner.

Finally, it should be noted that: the above is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that the present utility model is described in detail with reference to the foregoing embodiments, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (5)

1. The utility model provides a centrifugal pump impeller, includes rim plate (1), shaft hole (8) have been seted up at rim plate (1) middle part, and rim plate (1) upper surface has set firmly a plurality of blades (2) around shaft hole (8) circumference upwards, its characterized in that: the utility model discloses a rotary electric machine, including rim plate (1), connecting block (4), fixed block (6) and connecting block (4), rim plate (1) upper surface is located and is provided with a plurality of detachable reposition of redundant personnel piece (3) between blade (2), reposition of redundant personnel piece (3) lower surface middle part all is fixed with connecting block (4), a plurality of mounting grooves (5) that correspond with connecting block (4) position have been seted up on rim plate (1), and rim plate (1) lower surface fixation has two fixed blocks (6) that multiunit and mounting groove (5) position correspond, insert between two fixed blocks (6) after connecting block (4) lower extreme passed mounting groove (5), be connected with bolt (7) between fixed block (6) and connecting block (4).

2. A centrifugal pump impeller according to claim 1, wherein: the blades (2) and the flow dividing blocks (3) are uniformly distributed on the upper surface of the wheel disc (1) at intervals.

3. A centrifugal pump impeller according to claim 1, wherein: the blades (2) and the flow dividing blocks (3) are arc concave sheets.

4. A centrifugal pump impeller according to claim 1, wherein: the inner wall of the shaft hole (8) is provided with a limit groove (9).

5. A centrifugal pump impeller according to claim 1, wherein: one end of the blade (2) close to the shaft hole (8) is provided with an arc surface (10).