CN212028169U

CN212028169U - Centrifugal impeller of water pump

Info

Publication number: CN212028169U
Application number: CN202020607772.2U
Authority: CN
Inventors: 沈志文; 沈立峰
Original assignee: Taizhou Qihang Motor Co ltd
Current assignee: Taizhou Qihang Motor Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-11-27
Anticipated expiration: 2030-04-21

Abstract

The utility model provides a water pump centrifugal impeller belongs to water pump centrifugal impeller technical field. It has solved the problem that current impeller surface processing is coarse, and performance is poor. This water pump centrifugal impeller, including upper cover dish and lower cover dish, the last blade that has a plurality of to be circumference evenly distributed of upper cover dish, the position department that corresponds the blade on the lower cover dish has a plurality of and is circumference evenly distributed's card strip subassembly, each card strip subassembly comprises the first card strip and the second card strip that the interval set up, all set up on each blade and supply corresponding first card strip to stretch into the first draw-in groove of joint and supply corresponding second card strip to stretch into the second draw-in groove of joint, the one-to-one joint through first card strip and first draw-in groove and the one-to-one joint of second card strip and second draw-in groove make upper cover dish and lower cover dish amalgamation link firmly. The utility model has the advantages of the product of processing assembly is simple, processing is smooth and performance is good.

Description

Centrifugal impeller of water pump

Technical Field

The utility model belongs to the technical field of water pump centrifugal impeller, a water pump centrifugal impeller is related to.

Background

The impeller is a core part of the water pump and is a main influencer of the working efficiency. The existing centrifugal impeller of the water pump is generally integrally formed by sand casting or spliced.

The runner of the impeller integrally formed by sand casting is rough, the use performance of the water pump is influenced, in addition, the weight of the impeller integrally formed by sand casting is not controllable, the resource waste is caused, and the smelting and pouring processes are involved in the process of producing the impeller, so that the environment is not favorably protected;

the impeller formed by splicing adopts a split design, the two ends of the blade are respectively riveted with the upper cover disc and the lower cover disc through rivets, and the impeller riveted through the rivets easily has the problems of low connection strength, weak resultant force, easy falling off and the like in use; in addition, the flatness of the upper cover plate and the lower cover plate of the impeller riveted by the rivets cannot be guaranteed, so that the problem of roughness and unevenness can be caused, and the use performance of the impeller is further influenced.

Disclosure of Invention

The utility model aims at providing a water pump centrifugal impeller that processing assembly is simple, the product is smooth, performance is good to the above-mentioned problem that exists among the prior art.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a water pump centrifugal impeller, its characterized in that, includes upper cover dish and lower cover dish, upper cover dish on have a plurality of be circumference evenly distributed's blade, lower cover dish on the position department of corresponding blade have a plurality of be circumference evenly distributed's card strip subassembly, each card strip subassembly comprises first card strip and the second card strip that the interval set up, all set up on each blade and supply corresponding first card strip to stretch into the first draw-in groove of joint and supply corresponding second card strip to stretch into the second draw-in groove of joint, make upper cover dish and lower cover dish amalgamation link firmly through the one-to-one correspondence joint of first card strip and first draw-in groove and the joint of second card strip and second draw-in groove.

In foretell a water pump centrifugal impeller, the top of first joint strip has the bellied first joint portion of upwards extending, and this first joint portion forms the mountain peak form with the longitudinal section of whole first joint strip, the top of first joint portion has the bellied and interval distribution's of a plurality of second joint portion of upwards extending, the blade on set up and supply corresponding first joint portion to stretch into the joint and with the first joint groove that is linked together, still set up on the blade and supply corresponding second joint portion to stretch into the joint and with the second joint groove that first joint groove is linked together.

In the above centrifugal impeller for water pumps, the two sides of the first clamping strip and the two sides of the corresponding first clamping portion are all transited through the arc-shaped transition surface.

In the above centrifugal impeller of the water pump, the inner end of the blade protrudes towards the direction of the lower cover disc to form an arc-shaped protruding part which is limited and abutted against the lower cover disc.

In the above centrifugal impeller of the water pump, the first clamping strip and the first clamping groove and the second clamping strip and the second clamping groove are fixed by welding.

In the above centrifugal impeller of the water pump, the middle parts of the upper cover disc and the lower cover disc are both provided with the shaft hole parts which are communicated with each other.

Compared with the prior art, the centrifugal impeller of the water pump has the following advantages:

1. the upper cover disc and the lower cover disc are firmly welded through the one-to-one corresponding clamping of the first clamping strips and the first clamping grooves and the one-to-one clamping of the second clamping strips and the second clamping grooves, the smoothness of the impeller is improved, and the appearance of the impeller is more attractive;

2. the impeller has the advantages that the blades and the upper cover disc are integrally formed in a punching mode, the clamping strip assemblies and the lower cover disc are integrally formed in a punching mode, and the upper cover disc with the blades and the lower cover disc with the clamping strip assemblies are designed in a split mode, so that compared with the traditional impeller which is integrally cast and formed, the impeller is higher in size precision, the stability of the performance of the impeller can be guaranteed better, the punching forming weight is controllable, and the product cost can be greatly reduced;

3. this blade in impeller and the integrative stamping forming of upper cover dish and welded fastening compare the tradition and have that joint strength is higher, more stable advantage through rivet and upper cover dish and lower cover dish riveted method to can effectual reduction because of the pump accident risk that the blade drops and arouses, improve the reliability of pump operation.

Drawings

Fig. 1 is a schematic sectional structure view of the centrifugal impeller of the water pump.

Fig. 2 is a schematic perspective view of an upper cover plate in the centrifugal impeller of the water pump.

Fig. 3 is a schematic perspective view of the lower cover plate of the centrifugal impeller of the water pump.

Fig. 4 is an enlarged schematic structural view of a portion a of fig. 1 in the centrifugal impeller of the water pump.

Fig. 5 is a schematic perspective view of a first clamping strip in the centrifugal impeller of the water pump.

In the figure, 1, an upper cover plate; 2. a lower cover plate; 3. a blade; 4. a clip strip assembly; 5. a first clip strip; 6. a second card strip; 7. a first card slot; 8. a second card slot; 9. a first clamping part; 10. a second clamping part; 11. a first clamping groove; 12. a second clamping groove; 13. an arc-shaped convex part; 14. a shaft hole portion.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2, 3, 4 and 5, the centrifugal impeller of the water pump comprises an upper cover disc 1 and a lower cover disc 2, the middle parts of the upper cover disc 1 and the lower cover disc 2 are both provided with shaft hole parts 14 which are communicated with each other, the upper cover disc 1 is provided with a plurality of blades 3 which are uniformly distributed in the circumferential direction, the lower cover disc 2 is provided with a plurality of clamping strip assemblies 4 which are uniformly distributed in the circumferential direction at positions corresponding to the blades 3, each clamping strip assembly 4 is composed of first clamping strips 5 and second clamping strips 6 which are arranged at intervals, each blade 3 is provided with a first clamping groove 7 for the corresponding first clamping strip 5 to extend into the clamping connection and a second clamping groove 8 for the corresponding second clamping strip 6 to extend into the clamping connection, make

upper cover dish

1 and 2 amalgamations of lower cover dish link firmly through the one-to-one joint of first card strip 5 and first draw-in groove 7 and the one-to-one joint of second card strip 6 and second draw-in groove 8, all through welded fastening between first card strip 5 and first draw-in groove 7 and second card strip 6 and the second draw-in groove 8.

As the preferred structure, the two sides of the first clamping strip 5 and the two sides of the corresponding first clamping part 9 are transited through arc-shaped transition surfaces.

In more detail, the top of the first clamping strip 5 is provided with a first clamping portion 9 extending upwards and protruding, and the first clamping portion 9 forms the longitudinal section of the whole first clamping strip 5 into a mountain peak shape, the top of the first clamping portion 9 is provided with a plurality of second clamping portions 10 extending upwards and protruding and distributed at intervals, the blade 3 is provided with a first clamping groove 11 for the corresponding first clamping portion 9 to extend into and be clamped with and communicate with the first clamping groove 7, the blade 3 is also provided with a second clamping groove 12 for the corresponding second clamping portion 10 to extend into and be clamped with and communicate with the first clamping groove 11, brazing materials are put into the first clamping groove 7 and the second clamping groove 8, the first clamping strip 5 is clamped in the first clamping groove 7, meanwhile, the first clamping portion 9 and the second clamping portion 10 on the first clamping strip 5 are correspondingly clamped with the first clamping groove 11 and the second clamping groove 12 in the first clamping groove 7, and the second clamping strip 6 is clamped in the second clamping groove 8, and then, the upper cover disc 1 and the lower cover disc 2 are pressed and spliced by automatic equipment, and finally, the spliced impeller is heated and subjected to finish machining to obtain a product.

Further saying in detail, the tip of blade 3 has the arc bellying 13 that leans on with lower head disk 2 is spacing protruding towards the direction of lower head disk 2, and arc bellying 13 makes

upper head disk

1 and 2 accurate location of lower head disk, and the amalgamation of upper head disk 1 and lower head disk 2 links firmly more stably, and the amalgamation effect is better.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A water pump centrifugal impeller is characterized by comprising an upper cover disc (1) and a lower cover disc (2), the upper cover disc (1) is provided with a plurality of blades (3) which are uniformly distributed in the circumferential direction, the lower cover disc (2) is provided with a plurality of clamping strip components (4) which are uniformly distributed in the circumferential direction at positions corresponding to the blades (3), each clamping strip component (4) consists of a first clamping strip (5) and a second clamping strip (6) which are arranged at intervals, each blade (3) is provided with a first clamping groove (7) for the corresponding first clamping strip (5) to extend into the clamping connection and a second clamping groove (8) for the corresponding second clamping strip (6) to extend into the clamping connection, the upper cover plate (1) and the lower cover plate (2) are fixedly connected in an spliced mode through one-to-one corresponding clamping of the first clamping strips (5) and the first clamping grooves (7) and one-to-one corresponding clamping of the second clamping strips (6) and the second clamping grooves (8).

2. The water pump centrifugal impeller is characterized in that a first clamping portion (9) extending upwards and protruding is arranged at the top of the first clamping strip (5), the first clamping portion (9) enables the longitudinal section of the whole first clamping strip (5) to form a peak shape, a plurality of second clamping portions (10) extending upwards and protruding in an interval distribution are arranged at the top of the first clamping portion (9), first clamping grooves (11) for the corresponding first clamping portions (9) to extend into the clamping and to be communicated with the first clamping grooves (7) are formed in the blades (3), and second clamping grooves (12) for the corresponding second clamping portions (10) to extend into the clamping and to be communicated with the first clamping grooves (11) are formed in the blades (3).

3. The water pump centrifugal impeller as claimed in claim 2, wherein both sides of the first clamping strip (5) and both sides of the corresponding first clamping portion (9) are transited by an arc-shaped transition surface.

4. A water pump centrifugal impeller according to claim 1, characterized in that the inner end of the blade (3) is raised towards the lower cover disc (2) with an arc-shaped raised part (13) which is in limit abutment with the lower cover disc (2).

5. The water pump centrifugal impeller as claimed in claim 1, wherein the first clamping strip (5) and the first clamping groove (7) and the second clamping strip (6) and the second clamping groove (8) are fixed by welding.

6. The water pump centrifugal impeller as claimed in claim 1, characterized in that the middle parts of the upper cover disc (1) and the lower cover disc (2) are provided with mutually communicated shaft hole parts (14).