CN218717686U

CN218717686U - Novel centrifugal pump

Info

Publication number: CN218717686U
Application number: CN202222468020.4U
Authority: CN
Inventors: 程普慧
Original assignee: Zhejiang Huilong Electromechanical Co ltd
Current assignee: Zhejiang Huilong Electromechanical Co ltd
Priority date: 2022-09-17
Filing date: 2022-09-17
Publication date: 2023-03-24
Anticipated expiration: 2032-09-17

Abstract

The utility model provides a novel centrifugal pump, which comprises a main shell, wherein a containing cavity is formed in the main shell, a water inlet is formed on one side, and a water outlet is formed on the other side; the impeller is rotatably arranged in the accommodating cavity; one end of the rotating shaft is arranged in the accommodating cavity and penetrates through the impeller, and the other end of the rotating shaft extends to the outer side of the main shell; the impeller comprises a mounting plate which is sleeved on the rotating shaft; a plurality of blades disposed on the mounting plate; the mounting plate is provided with a plurality of positioning groups on one side for mounting the blades, and the plurality of blades are correspondingly arranged on the plurality of positioning groups; the positioning group comprises a plurality of positioning holes, one side of the blade, which is close to the mounting plate, is provided with a plurality of positioning blocks, and the positioning of the blade on the mounting plate is realized in the positioning holes through the positioning blocks. Thereby this application has reduced the production degree of difficulty and the equipment degree of difficulty of impeller promptly through the design of locating hole and locating piece, has still guaranteed the accuracy of blade in the position of mounting panel and the position between the blade.

Description

Novel centrifugal pump

Technical Field

The utility model relates to a centrifugal pump technical field especially relates to a novel centrifugal pump.

Background

A water pump, which is one of centrifugal pumps that transport liquid by centrifugal force generated when an impeller rotates, is a tool that may be frequently used in daily work of people and that transports water by rotation of the impeller. When a producer manufactures the impeller, the impeller is sometimes produced in a mode of integrally forming the impeller by using a die, and the impeller is complex in structure, high in cost and possibly high in production difficulty. Therefore, parts of the impeller, such as the mounting plate and the blades, at each position are independently produced, and then the parts are assembled together by welding to achieve production of the impeller.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a novel centrifugal pump, its design through locating hole and locating piece solves the problem that conventional impeller production difficulty and error appears between blade and the mounting panel easily.

In order to solve the technical problem, the technical scheme of the utility model is that:

a novel centrifugal pump comprising:

the water inlet and the water outlet are communicated with the accommodating cavity;

the impeller is rotatably arranged in the accommodating cavity and is used for guiding water flow from the water inlet to the water outlet; and

one end of the rotating shaft is arranged in the accommodating cavity, penetrates through the impeller and is used for driving the impeller to rotate, and the other end of the rotating shaft extends to the outer side of the main shell and is used for being connected with a driving source;

the impeller includes:

the mounting plate is sleeved on the rotating shaft; and

a plurality of blades disposed on the mounting plate;

the mounting plate is provided with a plurality of positioning groups on one side for mounting the blades, and the plurality of blades are correspondingly arranged on the plurality of positioning groups; the positioning group comprises a plurality of positioning holes, one side of the blade, which is close to the mounting plate, is provided with a plurality of positioning blocks, and the positioning of the blade on the mounting plate is realized in the positioning holes through the positioning blocks.

Preferably, the positioning group further comprises a positioning groove, and the plurality of positioning holes are arranged in the positioning groove; and the side surfaces of the blades are attached to the inner wall of the positioning groove.

Preferably, the positioning groove is an arc-shaped groove, the shape of the arc-shaped groove is matched with that of the blade, and the positioning holes are uniformly distributed on a central arc line of the arc-shaped groove.

Preferably, the plurality of positioning groups are arranged on the same side surface of the mounting plate in a circular circumferential array mode by taking the rotation center of the impeller as a circle.

Preferably, the number of the positioning groups is greater than or equal to the number of the blades.

Preferably, the width of the positioning groove is gradually increased from inside to outside, and the lower end of the blade is matched with the positioning groove.

Preferably, a boss is arranged in the middle of the mounting plate, and the rotating shaft penetrates through the boss; one end of the positioning groove is arranged on the boss, and the other end of the positioning groove extends to the edge of the mounting plate from the boss;

and the height of the blades is gradually reduced from the middle of the mounting plate to the edge of the mounting plate.

Preferably, the water outlet is arranged on the upper side of the accommodating cavity, and the water outlet is positioned in the tangential direction of the edge of the rotating range of the impeller.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the utility model discloses well producer can independently produce mounting panel and blade earlier, the die sinking degree of difficulty, the production degree of difficulty greatly reduced. Then the positioning assembly of the blades on the mounting plate is realized in advance through the design of the positioning holes and the positioning blocks, so that the accuracy of the positions of the blades on the mounting plate and between the blades is ensured.

2. The utility model discloses the side laminating of well blade the inner wall of constant head tank. Thereby make the area of contact between blade and the mounting panel bigger, the constant head tank also can restrict the removal of blade to be connected between time blade and the mounting panel can be more stable.

3. The utility model discloses the side laminating of well blade the inner wall of constant head tank. Thereby make the area of contact between blade and the mounting panel bigger, the constant head tank also can restrict the removal of blade to be connected between time blade and the mounting panel can be more stable.

4. The utility model discloses when well impeller drive rivers removed to the delivery port, the rivers flow direction can be in same straight line with the orientation of delivery port, and then can reduce rivers to the striking that holds the intracavity wall, also can improve the certain water speed of this centrifugal pump simultaneously.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic structural view of an impeller;

fig. 4 is a partial exploded view of the impeller.

Reference numerals: 1. a main housing; 11. an accommodating chamber; 12. a water inlet; 13. a water outlet;

2. an impeller; 21. mounting a plate; 211. positioning group; 2111. positioning holes; 2112. positioning a groove; 212. a boss; 22. a blade; 221. positioning blocks;

3. and rotating the shaft.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

As shown in fig. 1 to 4, a novel centrifugal pump includes a main casing 1, an impeller 2, and a rotating shaft 3. The shaping has the chamber 11 that holds in the main casing body 1, and one side shaping of main casing body 1 has water inlet 12, and the opposite side shaping has delivery port 13, water inlet 12 and delivery port 13 all with hold chamber 11 and be linked together, preferably in this embodiment water inlet 12 sets up the front side at main casing body 1, and delivery port 13 sets up the upside at main casing body 1. The main housing 1 is mainly used for mounting the impeller 2, the bearing, the rotating shaft 3 or other relevant parts. The impeller 2 is rotatably disposed in the accommodating chamber 11 for guiding water flow from the water inlet 12 to the water outlet 13, thereby realizing water flow transportation. The one end setting of axis of rotation 3 is holding in the chamber 11 and wearing to establish on impeller 2, and the other end of axis of rotation 3 extends to the outside of main casing body 1 and is used for connecting the driving source to corresponding driving source, just can drive axis of rotation 3 and rotate if the motor, axis of rotation 3 rotates and drives impeller 2 again and rotates, finally realizes that impeller 2 transports the guide of rivers.

With reference to fig. 3 and 4, the impeller 2 includes a mounting plate 21 and a plurality of blades 22. The mounting plate 21 is sleeved on the rotating shaft 3 to realize connection between the impeller 2 and the rotating shaft 3. A plurality of blades 22 are arranged on the mounting plate 21 and used for guiding and driving water flow. A plurality of positioning groups 211 are arranged on one side of the mounting plate 21, on which the blades 22 are mounted, and the plurality of blades 22 are correspondingly arranged on the plurality of positioning groups 211; the positioning set 211 includes a plurality of positioning holes 2111, a plurality of positioning blocks 221 are disposed on one side of the blade 22 close to the mounting plate 21, and the positioning of the blade 22 on the mounting plate 21 is realized by the positioning blocks 221 disposed in the positioning holes 2111.

When the impeller 2 is manufactured, a manufacturer sometimes adopts a mold to integrally form, which is complicated in structure, high in cost and possibly difficult to produce. Therefore, the parts of the impeller 2 at various positions, such as the mounting plate 21 and the blades 22, are independently produced, and then the parts are assembled together by welding to produce the impeller 2, but the welding is usually manual welding, and large errors are prone to occur in the positions of the blades 22 on the mounting plate 21 and between the blades 22. Therefore, in the embodiment, a producer can independently produce the mounting plate 21 and the blade 22, and the die opening difficulty and the production difficulty are greatly reduced. Then, the positioning assembly 211 of the blade 22 on the mounting plate 21 is realized in advance through the design of the positioning hole 2111 and the positioning block 221, so that the accuracy of the position of the blade 22 on the mounting plate 21 and the position between the blades 22 is ensured. Finally, the fixed connection between the mounting plate 21 and the blade 22 is achieved by means of heat welding, gluing, etc., preferably welding in this embodiment.

That is, in the present embodiment, the manufacturing difficulty and the assembly difficulty of the impeller 2 are reduced by the design of the positioning hole 2111 and the positioning block 221, and the position of the blades 22 on the mounting plate 21 and the position between the blades 22 are also ensured to be accurate.

Further, with reference to fig. 3 and fig. 4, the positioning assembly 211 further includes a positioning slot 2112, and a plurality of positioning holes 2111 are disposed in the positioning slot 2112; and the side of the vane 22 is fitted to the inner wall of the positioning groove 2112. Thereby, the contact area between the vane 22 and the mounting plate 21 is made larger, and the positioning groove 2112 also restricts the movement of the vane 22, so that the connection between the vane 22 and the mounting plate 21 can be more stable.

With reference to fig. 3 and 4, the positioning slot 2112 is preferably an arc-shaped slot, the shape of the arc-shaped slot is matched with that of the blade 22, and the plurality of positioning holes 2111 are uniformly distributed on a central arc line of the arc-shaped slot. Thereby the arc structure through the adaptation and locating hole 2111 are located central arc's design and the atress can be more even when making blade 22 set up on mounting panel 21, and then further improve the stability of blade 22 in constant head tank 2112.

Further, referring to fig. 3 and 4, the positioning sets 211 are disposed on the same side of the mounting plate 21 in a circular array with the rotation center of the impeller 2 as a circle. The respective blades 22 can also be arranged in a circumferential array on the mounting plate 21. Therefore, the track formed by the impeller 2 driving the water flow is more fit with the rotation track of the impeller 2, even if the impeller 2 can more stably and uniformly drive the water flow.

With reference to fig. 3 and 4, the number of the positioning groups 211 is greater than or equal to the number of the blades 22, so that a manufacturer can select a plurality of blades 22 to be installed on the positioning groups 211 at different positions according to different production requirements, thereby changing the specification of the impeller 2, and finally enabling the manufacturer to assemble the blades 22 with different specifications by using the installation plates 21 and the blades 22 with the same specification.

Referring to fig. 3 and 4, the width of the positioning slot 2112 gradually increases from the inside to the outside, and the lower end of the vane 22 is fitted into the positioning slot 2112. Since the centrifugal pump drives the water flow, i.e., the common stress point is usually the outer end of the vane 22, the vane 22 and the outer end of the positioning slot 2112 can have greater strength by increasing the width, and the impeller 2 can have longer service life.

With reference to fig. 1 to 3, a boss 212 is provided in the middle of the mounting plate 21, and the rotating shaft 3 is inserted into the boss 212, so that the boss 212 enhances the connection strength between the rotating shaft 3 and the impeller 2; one end of the positioning slot 2112 is disposed on the boss 212, and the other end of the positioning slot 2112 extends from the boss 212 to the edge of the mounting plate 21. And the height of the blades 22 is gradually reduced from the middle of the mounting plate 21 to the edge of the mounting plate 21. Therefore, the middle part of the impeller 2 is firstly contacted with the water flow of the water inlet 12, and then the water flow is conveyed to the outer ends of the blades 22 under the action of the inner ends of the blades 22, and finally the transportation of the water flow by centrifugal force is realized. The transportation of rivers is more stable, and efficiency is also higher.

Further, referring to fig. 1 and 2, the water outlet 13 is disposed on the upper side of the accommodating cavity 11, and the water outlet 13 is located in a tangential direction of an edge of a rotation range of the impeller 2. Therefore, when the impeller 2 drives water to move towards the water outlet 13, the flow direction of the water and the orientation of the water outlet 13 can be on the same straight line, so that the impact of the water on the inner wall of the accommodating cavity 11 can be reduced, and meanwhile, the certain water outlet speed of the centrifugal pump can also be improved.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. A novel centrifugal pump comprises

The water storage device comprises a main shell (1), wherein a containing cavity (11) is formed in the main shell, a water inlet (12) is formed in one side of the main shell, a water outlet (13) is formed in the other side of the main shell, and the water inlet (12) and the water outlet (13) are communicated with the containing cavity (11);

an impeller (2) rotatably disposed within the housing chamber (11) for directing a flow of water from the water inlet (12) to the water outlet (13); and

one end of the rotating shaft (3) is arranged in the accommodating cavity (11) and penetrates through the impeller (2) to drive the impeller (2) to rotate, and the other end of the rotating shaft extends to the outer side of the main shell (1) and is connected with a driving source;

characterized in that the impeller (2) comprises:

the mounting plate (21) is sleeved on the rotating shaft (3); and

a plurality of blades (22) disposed on the mounting plate (21);

one side of the mounting plate (21), on which the blades (22) are mounted, is provided with a plurality of positioning groups (211), and the blades (22) are correspondingly arranged on the positioning groups (211); the positioning group (211) comprises a plurality of positioning holes (2111), a plurality of positioning blocks (221) are arranged on one side, close to the mounting plate (21), of the blade (22), and the positioning of the blade (22) on the mounting plate (21) is achieved in the positioning holes (2111) through the positioning blocks (221).

2. The new centrifugal pump of claim 1, wherein: the positioning group (211) further comprises a positioning groove (2112), and the positioning holes (2111) are arranged in the positioning groove (2112); and the side surface of the blade (22) is attached to the inner wall of the positioning groove (2112).

3. The new centrifugal pump of claim 2, wherein: the positioning grooves (2112) are arc-shaped grooves, the shapes of the arc-shaped grooves are matched with those of the blades (22), and the positioning holes (2111) are uniformly distributed on the central arc line of the arc-shaped grooves.

4. The new centrifugal pump of claim 1, wherein: the positioning groups (211) are arranged on the same side face of the mounting plate (21) in a circular manner by taking the rotation center of the impeller (2) as a circle.

5. The new centrifugal pump of claim 1, wherein: the number of the positioning groups (211) is greater than or equal to the number of the blades (22).

6. The new centrifugal pump of claim 3, wherein: the width of the positioning groove (2112) is gradually increased from inside to outside, and the lower end of the blade (22) is matched with the positioning groove (2112).

7. The new centrifugal pump of claim 2, wherein: a boss (212) is arranged in the middle of the mounting plate (21), and the rotating shaft (3) penetrates through the boss (212); one end of the positioning groove (2112) is arranged on the boss (212), and the other end of the positioning groove (2112) extends from the boss (212) to the edge of the mounting plate (21);

and the height of the blade (22) is gradually reduced from the middle of the mounting plate (21) to the edge of the mounting plate (21).

8. The new centrifugal pump according to any one of claims 1 to 5, characterized in that: the water outlet (13) is arranged on the upper side of the accommodating cavity (11), and the water outlet (13) is positioned in the tangential direction of the edge of the rotation range of the impeller (2).