CN219062046U

CN219062046U - Magnetic drive pump structure

Info

Publication number: CN219062046U
Application number: CN202223572121.2U
Authority: CN
Inventors: 顾秋林; 顾建军
Original assignee: Taicang Shunda Magnetic Pump Technology Co ltd
Current assignee: Taicang Shunda Magnetic Pump Technology Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-05-23
Anticipated expiration: 2032-12-31

Abstract

The utility model relates to the field of high-strength pump shafts and discloses a magnetic pump structure, which comprises a pump shaft and a magnetic pump consisting of an impeller, a bearing body, a bearing pair, an inner magnet and a magnetism isolating sleeve, wherein the pump shaft is connected with the bearing body through the bearing, the tail part of the pump shaft is attached to the inner magnet, the magnetism isolating sleeve is sleeved outside the inner magnet, the front end of the pump shaft extends out of the magnetic pump and is fixedly connected with an impeller end flat key, the pump shaft adopts carbon fiber reinforced PEEK as a raw material, the inside of the pump shaft is free of a steel mold core, and is manufactured through a transfer molding process by taking the carbon fiber reinforced PEEK as the raw material.

Description

Magnetic drive pump structure

Technical Field

The utility model relates to the field of high-strength pump shafts, in particular to a magnetic pump structure.

Background

The fluoroplastic magnetic pump has the advantages that the conveying medium is strong in corrosiveness, different in temperature, extremely strong in permeability of some mediums, and the pump shaft of the magnetic transmission pump is made of ceramic materials, and also is made of plastic coated iron cores, so that the ceramic materials are relatively brittle, the shaft breakage phenomenon is extremely easy to occur when the power is relatively high, the pump shaft of the plastic coated iron cores is corroded by the permeated corrosive medium in case of encountering the extremely strong medium, the iron cores are thoroughly corroded for a relatively long time, and the pump shaft at the moment is broken, so that the magnetic pump structure is provided.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a magnetic pump structure, which solves the problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a magnetic drive pump structure, includes the pump shaft and by impeller, bearing body, bearing pair, interior magnetism and the magnetic drive pump that separates the magnetic sleeve and constitute, the pump shaft is paid and is connected with the bearing body through the bearing, the afterbody and the interior laminating of pump shaft, and the outside of interior magnetism has cup jointed and has separated the magnetic sleeve, the front end of pump shaft extends magnetic drive pump and impeller end flat key fixed connection, the pump shaft adopts carbon fiber reinforcing PEEK as the raw materials, and the inside of pump shaft does not have steel moulding core.

Preferably, an impeller end flat key is arranged in the pump shaft close to the front end.

Preferably, an inner magnetic end flat key is arranged in the pump shaft close to the tail end.

Preferably, a front clamping groove for inserting the impeller is formed in the outer wall of the front end of the pump shaft.

Preferably, the middle clamping grooves for clamping the bearing pair are formed in two sides of the middle of the pump shaft.

Preferably, a tail clamping groove for clamping the inner magnet is formed in the outer wall of the tail end of the pump shaft.

Compared with the prior art, the utility model provides a magnetic pump structure, which has the following advantages:

1. the carbon fiber reinforced PEEK pump shaft for the high-strength corrosion-resistant magnetic pump is manufactured by adopting carbon fiber reinforced PEEK as a raw material through a transfer molding process, and the pump shaft formed by the transfer molding process has the advantages of high compactness of the material, no defects such as air holes and the like in the material, high mechanical strength, 240MPa of tensile strength at normal temperature and more than 100MPa of shearing strength, and is very suitable for working conditions of corrosion resistance and permeation resistance media.

2. According to the carbon fiber reinforced PEEK pump shaft for the high-strength corrosion-resistant magnetic pump, no steel molding core is arranged in the pump shaft, corrosion caused by medium permeation is avoided, the torque resistance is not weakened, and the magnetic pump can stably operate.

Drawings

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

FIG. 2 is a schematic view of a pump shaft according to the present utility model.

In the figure: 1. a pump shaft; 2. an impeller; 3. a bearing body; 4. bearing pair; 5. internal magnetism; 6. a magnetism isolating sleeve; 7. an impeller end flat key; 8. an inner magnetic end flat key; 9. a front clamping groove; 10. a middle clamping groove; 11. and a tail clamping groove.

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. 1-2, a magnetic pump structure comprises a pump shaft 1 and a magnetic pump consisting of an impeller 2, a bearing body 3, a bearing pair 4, an inner magnet 5 and a magnetism isolating sleeve 6, wherein the pump shaft 1 is connected with the bearing body 3 through the bearing pair 4, the tail part of the pump shaft 1 is attached to the inner magnet 5, the magnetism isolating sleeve 6 is sleeved outside the inner magnet 5, the front end of the pump shaft 1 extends out of the magnetic pump to be fixedly connected with an impeller end flat key 7, the pump shaft 1 adopts carbon fiber reinforced PEEK as a raw material and is manufactured through a transfer molding process, and the pump shaft formed through the transfer molding process has the advantages of high compactness of the material, no air holes and the like in the pump shaft, high mechanical strength, no steel mold core in the pump shaft 1, no corrosion caused by medium permeation, no weakening of torque resistance and stable operation of the magnetic pump.

An impeller end flat key 7 is arranged in the pump shaft 1 close to the front end; an inner magnetic end flat key 8 is arranged in the pump shaft 1 close to the tail end; the front end outer wall of the pump shaft 1 is provided with a front clamping groove 9 for inserting the impeller 2; the two sides of the middle part of the pump shaft 1 are provided with a middle clamping groove 10 for clamping the bearing pair 4; the outer wall of the tail end of the pump shaft 1 is provided with a tail clamping groove 11 which is clamped with the inner magnet 5.

The working process of the utility model is as follows: the pump shaft 1 is made of carbon fiber reinforced PEEK as a raw material through a transfer molding process, and has the advantages that the compactness of the material is high, the inside of the pump shaft is free of defects such as air holes and the like due to the fact that the pump shaft is molded through the transfer molding process, the mechanical strength is high, the tensile strength reaches 240MPa at normal temperature, the shearing strength is greater than 100MPa, the torque of the pump shaft with the diameter of 32mm can be transmitted to be greater than 150N.M, and the torque is equivalent to the power of a 45KW motor at 2900 rotating speed, so that the carbon fiber reinforced PEEK pump shaft manufactured through the transfer molding process is very suitable for working conditions of corrosion resistance and permeation resistance media, meanwhile, the inside of the pump shaft 1 is free of steel molding cores, corrosion due to media permeation does not occur, the torque resistance capability cannot be weakened, and stable operation of the magnetic pump is ensured.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A magnetic drive pump structure, its characterized in that: including pump shaft (1) and by impeller (2), bearing body (3), bearing pair (4), interior magnetism (5) and magnetism isolating sleeve (6) constitute magnetic drive pump, pump shaft (1) is connected with bearing body (3) through bearing pair (4), the afterbody and the laminating of interior magnetism (5) of pump shaft (1), and the outside of interior magnetism (5) has cup jointed magnetism isolating sleeve (6), the front end of pump shaft (1) extends magnetic drive pump and impeller end flat key (7) fixed connection, pump shaft (1) adopts carbon fiber reinforcing PEEK as the raw materials, and the inside of pump shaft (1) does not have steel moulding core.

2. A magnetic pump structure according to claim 1, wherein: an impeller end flat key (7) is arranged in the pump shaft (1) close to the front end.

3. A magnetic pump structure according to claim 1, wherein: an inner magnetic end flat key (8) is arranged in the pump shaft (1) close to the tail end.

4. A magnetic pump structure according to claim 1, wherein: a front clamping groove (9) for inserting the impeller (2) is formed in the outer wall of the front end of the pump shaft (1).

5. A magnetic pump structure according to claim 1, wherein: middle clamping grooves (10) for clamping the bearing pair (4) are formed in two sides of the middle of the pump shaft (1).

6. A magnetic pump structure according to claim 1, wherein: a tail clamping groove (11) for clamping the inner magnet (5) is formed in the outer wall of the tail end of the pump shaft (1).