CN218862916U

CN218862916U - Chemical corrosion-resistant centrifugal pump with built-in stabilizing mechanism

Info

Publication number: CN218862916U
Application number: CN202320078122.7U
Authority: CN
Inventors: 徐正香; 张园园
Original assignee: Qingdao Sainuoweier Industrial Water Treatment Co ltd
Current assignee: Qingdao Sainuoweier Industrial Water Treatment Co ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-04-14
Anticipated expiration: 2033-01-10

Abstract

The utility model discloses a built-in stabilizing mean's corrosion-resistant centrifugal pump of chemical industry belongs to chemical centrifugal pump technical field, including the pump case, the one end of pump case is equipped with the end cover, the end cover internal fixation has mechanical seal, the mechanical seal internal rotation is connected with the axis of rotation, be equipped with the impeller in the end cover, impeller and axis of rotation are connected, the pump case internal fixation has footstep bearing, the one end and the footstep bearing of impeller are kept away from to the axis of rotation are connected, the interlude of axis of rotation is fixed with two bearing frames, the outer lane of two bearing frames all is fixed with the steadying plate, the pump case internal fixation has two cassettes, be equipped with four connecting blocks and four spacing bolts between two steadying plates, the lateral wall of four connecting blocks all is fixed with the flexure strip, two slots with the connecting block adaptation are all seted up to the lateral wall that two cassettes are in opposite. The chemical corrosion-resistant centrifugal pump with the built-in stabilizing mechanism reduces the axial force born by the thrust bearing and reduces the maintenance cost.

Description

Chemical corrosion-resistant centrifugal pump with built-in stabilizing mechanism

Technical Field

The utility model belongs to the technical field of the chemical centrifugal pump, concretely relates to chemical industry corrosion-resistant centrifugal pump of built-in stabilizing mean.

Background

Chemical pump is widely used in each field of chemical industry, and the chemical pump produced by domestic manufacturers at present mainly has: IH type stainless steel chemical pump, IHF type fluoroplastic chemical pump, FSB type fluoroplastic chemical pump, CQB chemical magnetic pump, CQ chemical magnetic pump, FZB chemical self-priming pump, etc. The chemical pumps are widely applied to the industries of chemical industry, metallurgy, pharmacy, chemical foil formation and the like, and have important application.

In the use process of the chemical pump, as a core driving part, namely a rotating shaft, is usually subjected to axial external stress, in order to resist the vibration of a shell of the rotating shaft caused by the axial force, a thrust bearing is usually arranged between a pump body and the rotating shaft, but the thrust bearing has a certain service life, only the rotating shaft can be assisted to bear the axial force in a certain range, when the working condition of the chemical pump is severe, the service life of the thrust bearing is sharply reduced, and the maintenance cost of the chemical pump is greatly increased due to frequent replacement of the thrust bearing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a chemical industry corrosion-resistant centrifugal pump of built-in stabilizing mean to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a corrosion-resistant centrifugal pump of chemical industry of built-in stabilizing mean, including the pump case, the one end of pump case is equipped with the end cover, the end cover internal fixation has mechanical seal, the mechanical seal internal rotation is connected with the axis of rotation, be equipped with the impeller in the end cover, impeller and axis of rotation are connected, the pump case internal fixation has footstep bearing, the one end that the impeller was kept away from to the axis of rotation is connected with footstep bearing, the interlude of axis of rotation is fixed with two bearing frames, the outer lane of two bearing frames all is fixed with the stabilizer plate, the pump case internal fixation has two cassettes, be equipped with four connecting blocks and four spacing bolts between two stabilizer plates, the lateral wall of four connecting blocks all is fixed with the flexure strip, two slots with the connecting block adaptation are all seted up to the lateral wall that two cassettes are in opposite directions, all set up two screws with spacing bolt adaptation on two cassettes, the slot with spacing bolt adaptation is all seted up on four connecting blocks, the surface of pump case and end cover has anticorrosive paint.

In a further embodiment, a support is fixed at the bottom end of the pump shell, two convex plates are fixed at the bottom end of the support, a base is arranged below the pump shell, and a groove matched with the support and two clamping grooves matched with the convex plates are formed in the top end of the base.

In a further embodiment, two clamping plates are arranged in the base, the two clamping plates extend out of the base, two transverse rods are fixed on the opposite side walls of the two clamping plates, springs are sleeved on the four transverse rods, and slots matched with the clamping plates are formed in the two convex plates.

In a further embodiment, a bottom plate is fixed at the bottom end of the base and is positioned below the two clamping plates.

In a further embodiment, two protruding blocks are fixed on two sides of the bottom plate, and through holes are formed in all four protruding blocks.

In a further embodiment, the end cap is bolted to the pump housing, which is bolted to the seat.

The utility model discloses a technological effect and advantage: this corrosion-resistant centrifugal pump of chemical industry of built-in stabilizing mean, through setting up the bearing frame, the steadying plate, the connecting block, the flexure strip, cassette and spacing bolt, when the axis of rotation received great axial force, the flexure strip was removed some axial force through bumping with the steadying plate, alleviate the axial force that bears on the footstep bearing, the problem of the maintenance cost greatly increased that needs frequently to change the footstep bearing and cause the chemical industry pump has been solved, unscrew spacing bolt and can lift the change together with the flexure strip with the connecting block, compare in changing the footstep bearing, the use cost of flexure strip is lower.

Drawings

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

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

fig. 3 is an enlarged view of the structure at a in fig. 2 according to the present invention.

In the figure: 1. a pump housing; 2. an end cap; 3. clamping a plate; 4. a base plate; 5. a support; 6. a base; 7. a bump; 8. a mechanical seal; 9. an impeller; 10. a thrust bearing; 11. a rotating shaft; 12. a convex plate; 13. a cross bar; 14. a spring; 15. a bearing seat; 16. a stabilizing plate; 17. connecting blocks; 18. an elastic sheet; 19. a card holder; 20. and a limiting bolt.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.

Referring to fig. 1 to 3, the present invention provides a chemical corrosion-resistant centrifugal pump with a built-in stabilizing mechanism, which will be described in detail with reference to the accompanying drawings.

Example 1

The utility model provides a corrosion-resistant centrifugal pump of chemical industry of built-in stabilizing mean, including pump case 1, the one end of pump case 1 is equipped with end cover 2, end cover 2 internal fixation has mechanical seal 8 (current part, can directly purchase the use), 8 internal rotations of mechanical seal are connected with axis of rotation 11, be equipped with impeller 9 in the end cover 2, impeller 9 passes through the bolt and is connected with axis of rotation 11, pump case 1 internal fixation has footstep bearing 10, the one end that impeller 9 was kept away from to axis of rotation 11 is connected with footstep bearing 10, the interlude of axis of rotation 11 is fixed with two bearing frames 15, the outer lane of two bearing frames 15 all has stabilizing plate 16 through the bolt fastening, welding has two cassette 19 in pump case 1, be equipped with four connecting blocks 17 and four spacing bolt 20 between two stabilizing plate 16, the lateral wall of four connecting blocks 17 has all welded the flexure strip 18, two slots with connecting block 17 adaptation are all seted up to the lateral wall that two cassette 19 are opposite to, all set up the screw with spacing bolt 20 adaptation on two cassette 19, the slot with spacing bolt 20 adaptation is all seted up on four connecting blocks 17, the surface of pump case 1 and end cover anticorrosive lacquer.

In the present embodiment, the specific usage flow is as follows: when the rotating shaft 11 is subjected to a large axial force, the elastic piece 18 collides with the stabilizing plate 16 to remove a part of the axial force, so that the axial force borne by the thrust bearing 10 is reduced, the problem that the maintenance cost of the chemical pump is greatly increased due to the fact that the thrust bearing 10 needs to be frequently replaced is solved, the connecting block 17 and the elastic piece 18 can be detached and replaced together by loosening the limiting bolt 20, and compared with the replacement of the thrust bearing 10, the use cost of the elastic piece 18 is lower.

Example 2

On embodiment 1's basis, the bottom mounting of pump case 1 has support 5, and the bottom welding of support 5 has two flange 12, and the below of pump case 1 is equipped with base 6, and the top of base 6 is seted up with the recess of support 5 adaptation and two draw-in grooves with flange 12 adaptation.

Two clamping plates 3 are arranged in a base 6, the two clamping plates 3 extend out of the base 6, two transverse rods 13 are welded on opposite side walls of the two clamping plates 3, springs 14 are sleeved on the four transverse rods 13, slots matched with the clamping plates 3 are formed in two convex plates 12, a bottom plate 4 is welded at the bottom end of the base 6, the bottom plate 4 is positioned below the two clamping plates 3, two convex blocks 7 are welded on two sides of the bottom plate 4, through holes are formed in the four convex blocks 7, the convex blocks 7 are fixed at proper positions by bolts, the two clamping plates 3 are pushed to move in opposite directions, the two clamping plates 3 are separated from the corresponding two convex plates 12, and the pump shell 1 can be dismounted together with a support 5 for maintenance by moving the pump shell 1 upwards;

during the installation, promote two cardboard 3 and remove in opposite directions, will fix and loosen two cardboard 3 behind the support 5 in the pump case 1 bottom arranges the recess on 6 tops of base in, the in-process that spring 14 resets promotes two cardboard 3 and moves mutually away mutually, and the tip of two cardboard 3 inserts in two protruding boards 12 that correspond, makes things convenient for the installation of support 5, pump case 1.

The end cover 2 is connected with the pump shell 1 through a bolt, and the pump shell 1 is connected with the support 5 through a bolt.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a built-in stabilizing mean's corrosion-resistant centrifugal pump of chemical industry, includes pump case (1), its characterized in that: one end of pump case (1) is equipped with end cover (2), end cover (2) internal fixation has mechanical seal (8), mechanical seal (8) internal rotation is connected with axis of rotation (11), be equipped with impeller (9) in end cover (2), impeller (9) are connected with axis of rotation (11), pump case (1) internal fixation has footstep bearing (10), the one end that impeller (9) were kept away from in axis of rotation (11) is connected with footstep bearing (10), the interlude of axis of rotation (11) is fixed with two bearing frames (15), the outer lane of two bearing frames (15) all is fixed with stabilising plate (16), pump case (1) internal fixation has two cassette (19), be equipped with four connecting block (17) and four spacing bolt (20) between two stabilising plate (16), the lateral wall of four connecting block (17) all is fixed with elastic sheet (18), two opposite lateral wall of cassette (19) all seted up the slot of two and connecting block (17) adaptation, all set up two screw with spacing bolt (20) adaptation on two cassette (19), all set up the slot of four connecting block (17) with spacing bolt (20) adaptation, the adaptation of pump case (1) and all coating have anticorrosive end cover.

2. The chemical corrosion-resistant centrifugal pump with the built-in stabilizing mechanism of claim 1, wherein: the pump case is characterized in that a support (5) is fixed at the bottom end of the pump case (1), two convex plates (12) are fixed at the bottom end of the support (5), a base (6) is arranged below the pump case (1), and a groove matched with the support (5) and two clamping grooves matched with the convex plates (12) are formed in the top end of the base (6).

3. The chemical corrosion-resistant centrifugal pump with the built-in stabilizing mechanism of claim 2, wherein: be equipped with two cardboard (3) in base (6), outside two cardboard (3) all extended to base (6), two cardboard (3) lateral walls in opposite directions all were fixed with two horizontal poles (13), all overlap on four horizontal poles (13) have spring (14), two all set up the slot with cardboard (3) adaptation on protruding board (12).

4. The chemical corrosion-resistant centrifugal pump with the built-in stabilizing mechanism as claimed in claim 3, wherein: the bottom end of the base (6) is fixed with a bottom plate (4), and the bottom plate (4) is located below the two clamping plates (3).

5. The chemical corrosion-resistant centrifugal pump with the built-in stabilizing mechanism as claimed in claim 4, wherein: two convex blocks (7) are fixed on two sides of the bottom plate (4), and through holes are formed in the four convex blocks (7).

6. The chemical corrosion-resistant centrifugal pump with the built-in stabilizing mechanism of claim 1, wherein: the end cover (2) is connected with the pump shell (1) through a bolt, and the pump shell (1) is connected with the support (5) through a bolt.