CN213655234U

CN213655234U - Centrifugal pump impeller casting

Info

Publication number: CN213655234U
Application number: CN202021691802.9U
Authority: CN
Inventors: 陈杰; 庄华; 李定芳
Original assignee: Zhejiang Achen New Material Technology Co ltd
Current assignee: Zhejiang Achen New Material Technology Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-07-09
Anticipated expiration: 2030-08-14

Abstract

The utility model provides a centrifugal pump impeller foundry goods, including the jackshaft, the jackshaft be the hollow tube, jackshaft outside from the top down be equipped with a fixed impeller body, a plurality of removal impeller body in proper order, fixed impeller body include last carousel, down the carousel, link to each other through a plurality of first arc revolving leaves between last carousel and down the carousel, last carousel middle part be equipped with the perforation, down the carousel middle part be equipped with down perforate, the jackshaft passes in proper order and perforates, wears the hole down, and all fixes at last perforation, in the lower perforation, removal impeller body include chassis, lower chassis, link to each other through a plurality of second arc revolving leaves between last chassis, lower chassis. The utility model has the advantages that: the number of the impeller bodies on the intermediate shaft can be changed, so that the total head of the impeller body is changed, and the impeller body can meet the requirements of different environments.

Description

Centrifugal pump impeller casting

Technical Field

The utility model belongs to the technical field of the impeller foundry goods, especially, relate to a centrifugal pump impeller foundry goods.

Background

The casting is a metal molding obtained by various casting methods, including steel casting, iron casting, copper casting, aluminum casting, etc., the impeller is a wheel disk provided with moving blades, which is a component of an impulse turbine rotor, and is a general term for the wheel disk and the rotating blades mounted thereon, and the impeller is a rotating body with blades for transmitting energy to liquid. The existing impeller casting has the following defects: the total lift in the centrifugal pump can not be changed, and inconvenience is brought to the use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a centrifugal pump impeller foundry goods, it can change the impeller number, and then changes the total lift of centrifugal pump, is convenient for install and dismantle, is particularly suitable for being used in the water centrifugal pump.

The technical scheme of the utility model is that: a centrifugal pump impeller casting comprises a middle shaft, wherein the middle shaft is a hollow pipe, the outer side of the middle shaft is sequentially provided with a fixed impeller body and a plurality of movable impeller bodies from top to bottom, the fixed impeller body comprises an upper rotating disc and a lower rotating disc, the upper rotating disc and the lower rotating disc are connected through a plurality of first arc-shaped rotating blades, the middle part of the upper rotating disc is provided with an upper through hole, the middle part of the lower rotating disc is provided with a lower through hole, the middle shaft sequentially penetrates through the upper through hole and the lower through hole and is fixed in the upper through hole and the lower through hole, the movable impeller bodies comprise an upper chassis and a lower chassis, the upper chassis and the lower chassis are connected through a plurality of second arc-shaped rotating blades, the middle positions of the upper chassis and the lower chassis are respectively and correspondingly provided with a first hole and a second hole for the middle shaft to penetrate through, the upper side of the upper chassis is provided with an upper through cavity communicated with the, the jackshaft passes logical chamber, first hole, second hole in proper order, is equipped with the screw hole on leading to the chamber on last, is equipped with the screw thread blind hole corresponding with the screw hole on the jackshaft, and fixing bolt passes the screw hole, and fixes in the screw thread blind hole.

Preferably, the inner wall of the intermediate shaft is provided with a key hole.

Preferably, the arc-shaped rotating blade is concavely arranged towards the middle shaft.

Preferably, the arc rotating blades are 7 and are uniformly distributed between the upper rotating disk and the lower rotating disk.

The utility model has the advantages and positive effects that: by adopting the technical scheme, the number of the impeller bodies on the intermediate shaft can be changed, so that the total lift of the impeller bodies is changed, and the impeller can meet the requirements of different environments.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a structural schematic view of a fixed impeller body.

Fig. 3 is a schematic structural view of a moving impeller body.

In the figure:

1. jackshaft 2, fixed impeller body 3, removal impeller body 4, upward spin carousel

5. A lower rotary table 6, a first arc-shaped rotating blade 7, an upper chassis 8 and a lower chassis

9. Second arc rotating blade 10, upper through cavity 11, threaded hole 12 and fixing bolt

Detailed Description

As shown in fig. 1-3, the technical scheme of the utility model is a centrifugal pump impeller foundry goods, including jackshaft 1, jackshaft 1 be the hollow tube, jackshaft 1 outside from the top down be equipped with 1 fixed impeller body 2, a plurality of removal impeller body 3 in proper order, fixed impeller body 2 include last carousel 4, down carousel 5, link to each other through a plurality of first arc rotating blades 6 between last carousel 4 and down carousel 5, last carousel 4 middle part be equipped with the perforation, down carousel 5 middle part be equipped with down the perforation, jackshaft 1 passes through the perforation in proper order, down the perforation, and all fix in last perforation, down the perforation, removal impeller body 3 include upper chassis 7, lower chassis 8, link to each other through a plurality of second arc rotating blades 9 between upper chassis 7, lower chassis 8, upper chassis 7, lower chassis 7, The middle position corresponds respectively on lower chassis 8 and is equipped with first hole, the second hole that is used for jackshaft 1 to pass, is equipped with the last logical chamber 10 that communicates with first hole on the upside of last chassis 7, and jackshaft 1 passes logical chamber 10, first hole, second hole in proper order, is equipped with screw hole 11 on last logical chamber 10, is equipped with the screw thread blind hole corresponding with screw hole 11 on the jackshaft, and fixing bolt 12 passes screw hole 11, and fixes in the screw thread blind hole.

In this embodiment, the inner wall of the intermediate shaft is provided with a key hole, and the key hole is used for connecting the rotating shaft.

In this embodiment, the arc-shaped rotating blade is recessed toward the intermediate shaft.

In this embodiment, the arc rotating blades have 7 pieces and are uniformly distributed between the upper rotating disk and the lower rotating disk.

The working process of the example is as follows: during the use, can change the impeller body number that is equipped with on the jackshaft according to actual environment demand, it can to take out the lower recess of the last cylinder of an impeller body from rather than adjacent impeller body.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A centrifugal pump impeller foundry goods which characterized in that: the middle shaft is a hollow pipe, the outer side of the middle shaft is sequentially provided with a fixed impeller body and a plurality of movable impeller bodies from top to bottom, the fixed impeller body comprises an upper rotating disc and a lower rotating disc, the upper rotating disc and the lower rotating disc are connected through a plurality of first arc-shaped rotating blades, the middle part of the upper rotating disc is provided with an upper through hole, the middle part of the lower rotating disc is provided with a lower through hole, the middle shaft sequentially penetrates through the upper through hole and the lower through hole and is fixed in the upper through hole and the lower through hole, the movable impeller body comprises an upper chassis and a lower chassis, the upper chassis and the lower chassis are connected through a plurality of second arc-shaped rotating blades, the middle positions of the upper chassis and the lower chassis are respectively and correspondingly provided with a first hole and a second hole for the middle shaft to penetrate through, the upper side of the upper chassis is provided with an upper through cavity communicated with the first hole, the jackshaft passes logical chamber, first hole, second hole in proper order, is equipped with the screw hole on leading to the chamber on last, is equipped with the screw thread blind hole corresponding with the screw hole on the jackshaft, and fixing bolt passes the screw hole, and fixes in the screw thread blind hole.

2. A centrifugal pump impeller casting according to claim 1, wherein: the inner wall of the intermediate shaft is provided with a keyhole.

3. A centrifugal pump impeller casting according to claim 1, wherein: the arc-shaped rotating blade is arranged towards the middle shaft in a concave mode.

4. A centrifugal pump impeller casting according to claim 1, wherein: the arc rotating blades are 7 and are uniformly distributed between the upper rotating disk and the lower rotating disk.