CN219549182U

CN219549182U - Pump shaft structure of magnetic pump

Info

Publication number: CN219549182U
Application number: CN202223557881.6U
Authority: CN
Inventors: 黄小成; 何明烨; 聂春桃; 杜岩
Original assignee: Zhuhai Chenhui Technology Co ltd
Current assignee: Zhuhai Chenhui Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-08-18
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to the technical field of magnetic pumps, in particular to a pump shaft structure of a magnetic pump, which delays the corrosion speed of a pump shaft by a medium and improves the durability of the pump shaft. The utility model provides a pump shaft structure of magnetic drive pump, includes the magnetic drive pump shaft body, and the outside cover of magnetic drive pump shaft body is equipped with the seal cover, and the seal cover is round platform shape sleeve structure including the guide cover, and one side fixedly connected with of guide cover is fixed the cover, and the inboard of fixed cover is provided with movable sleeve, and movable sleeve closes the connection through the screw thread soon with fixed cover, and one side fixedly connected with that fixed cover was kept away from to the movable sleeve is with fixed cover matched with collar, and the outer wall of collar is the same with the structure of round platform outer wall. According to the utility model, the shaft sleeve and the sealing sleeve are utilized, so that the probability that a medium is directly contacted with the outer wall of the magnetic pump shaft body and the connecting surface of the magnetic pump shaft body and the inner magnetic rotor is reduced, the problem that the pump shaft is corroded by the medium is solved, and the durability of the pump shaft is effectively improved.

Description

Pump shaft structure of magnetic pump

Technical Field

The utility model relates to the technical field of magnetic pumps, in particular to a pump shaft structure of a magnetic pump.

Background

The magnetic pump consists of an outer magnetic assembly, an inner magnetic assembly and a non-magnetic isolating sleeve, the working principle of the magnetic pump is that when the outer magnetic assembly is driven to rotate by external driving force, a magnetic field can penetrate through an air gap and non-magnetic substances to drive the inner magnetic assembly connected with the impeller to synchronously rotate, thereby realizing non-contact synchronous transmission of power,

when the magnetic pump is used for conveying media, the pump shaft at the position directly contacted with the media is corroded due to different corrosiveness intensity of the conveyed media, and meanwhile, the metal connecting surface between the pump shaft and the inner magnetic rotor is also corroded due to the fact that the pump shaft is immersed in the media, the service life of the pump shaft can be shortened, and the pump shaft structure of the magnetic pump can be provided for the service environment of the pump shaft in the magnetic pump.

Disclosure of Invention

The utility model aims to provide a pump shaft structure of a magnetic pump, which delays the corrosion speed of a pump shaft by a medium and improves the durability of the pump shaft.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a pump shaft structure of magnetic drive pump, including the magnetic drive pump shaft body, the outside cover of magnetic drive pump shaft body is equipped with the seal cover, the seal cover includes the guide sleeve, the guide sleeve is round platform shape sleeve structure, one side fixedly connected with of guide sleeve is fixed the cover, the inboard of fixed cover is provided with the movable sleeve, the movable sleeve closes the connection through the screw thread soon with fixed cover, one side fixedly connected with that fixed cover was kept away from to the movable sleeve is with fixed cover matched with collar, the outer wall of collar is the same with the structure of round platform outer wall, the cover is equipped with on the outer wall of magnetic drive pump shaft body with magnetic drive pump shaft body and seal cover matched with axle sleeve.

Preferably, the inside fixedly connected with of axle sleeve is a plurality of card strip that annular array distributes, and the vertical cross-section of card strip is T shape structure, has seted up a plurality of draw-in groove with card strip one-to-one on the outer wall of magnetic pump shaft body.

Preferably, one side of the shaft sleeve, which is far away from the sealing sleeve, is provided with an end cover, the end cover is sleeved on the outer side of the pump shaft of the magnetic pump, and the end cover is connected with the shaft sleeve through screw threads in a screwing mode.

Preferably, a sealing ring is arranged on the inner side of the fixed sleeve, and the sealing ring is positioned on one side of the movable sleeve away from the mounting ring.

Preferably, one side of the shaft sleeve, which is close to the material guiding sleeve, is attached to the material guiding sleeve, and a sealing gasket matched with the shaft sleeve is embedded on the outer wall of the material guiding sleeve.

Preferably, the sealing ring and the sealing gasket are made of rubber materials with good corrosion resistance.

The utility model has at least the following beneficial effects:

through the cooperation of axle sleeve, guide sleeve, movable sleeve and collar, the outer wall of magnetic drive pump shaft body and the medium direct contact who is carried can be avoided to the part, still can avoid the medium direct cladding of being transmitted outside the joint face seam the condition, has synthetically played the probability that reduces medium and pump shaft body direct contact to alleviate the problem that the pump shaft is corroded by the medium, effectively promoted the durability of pump shaft.

The utility model also has the following beneficial effects:

through the cooperation of axle sleeve, end cover, card strip and draw-in groove, can be with the help of the fixed card strip position of detachable end cover on the one hand, realized through the effect of loading and unloading end cover periodic replacement axle sleeve, be favorable to prolonging the life of pump shaft, on the other hand can strengthen the connection steadiness between axle sleeve and the magnetic pump shaft body with the help of the block relation of card strip and draw-in groove, can avoid the magnetic pump shaft body to take place relative rotation and produce the clearance between high-speed rotatory in-process and the axle sleeve and lead to the condition of medium infiltration.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

FIG. 2 is a schematic diagram showing the disassembly of the pump shaft body, end cover, shaft sleeve and other structures of the magnetic pump;

fig. 3 is a schematic diagram showing the structural disassembly of the sealing sleeve.

In the figure: 1. a magnetic pump shaft body; 2. a shaft sleeve; 3. sealing sleeve; 4. a material guiding sleeve; 5. a fixed sleeve; 6. a seal ring; 7. a movable sleeve; 8. a mounting ring; 9. clamping strips; 10. a clamping groove; 11. an end cap; 12. a sealing gasket; 13. an inner magnetic rotor.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1-3, a pump shaft structure of magnetic drive pump, including magnetic drive pump shaft body 1, the outside cover of magnetic drive pump shaft body 1 is equipped with seal cover 3, seal cover 3 includes guide sleeve 4, guide sleeve 4 is round platform shape sleeve structure, one side fixedly connected with fixed cover 5 of guide sleeve 4, the inboard of fixed cover 5 is provided with movable cover 7, movable cover 7 and fixed cover 5 pass through screw thread and close the connection, one side fixedly connected with that fixed cover 5 was kept away from to movable cover 7 is with fixed cover 5 matched with collar 8, the outer wall of collar 8 is the same with the structure of round platform outer wall, the cover is equipped with on the outer wall of magnetic drive pump shaft body 1 and seal cover 3 matched with axle sleeve 2.

The scheme comprises the following working processes:

in the running process of the magnetic pump, one end of the shaft sleeve 2 is required to be fixedly provided with the inner magnetic rotor 13, the other end of the shaft sleeve 2 is required to be provided with the impeller, the shaft sleeve 2 is always coated on the outer wall of the section of the magnetic pump shaft body 1 between the impeller and the inner magnetic rotor 13, the magnetic pump shaft body 1 can be prevented from being directly contacted with conveyed media, meanwhile, the dimensions of the guide sleeve 4, the fixed sleeve 5 and the movable sleeve 7 are matched with those of the inner magnetic rotor 13 assembled with the magnetic pump shaft body 1, after the fixed sleeve 5 and the movable sleeve 7 are screwed, the sealing sleeve 3 can be coated on the connecting surface of the magnetic pump shaft body 1 and the inner magnetic rotor 13, and as the outer walls of the guide sleeve 4 and the mounting ring 8 are identical to the outer wall structure of the circular table, the media close to the sealing sleeve 3 can form an outward flowing trend along the outer walls of the guide sleeve 4 and the mounting ring 8 when the magnetic pump shaft body 1, the outer wall of the magnetic pump shaft body 13 and the like are integrally rotated, and the probability of medium penetrating into the sealing sleeve 3 can be reduced.

The working process can be as follows:

this pump shaft structure can utilize axle sleeve 2 to prevent magnetic pump shaft body 1 and the medium direct contact who is carried on the one hand, and on the other hand can utilize seal cover 3 cladding magnetic pump shaft body 1 and interior magnetic rotor 13's joint face, avoids the condition of being directly cladding outside the joint face seam by the medium of transmission, synthesizes and plays the problem of alleviating the outer wall of medium corruption magnetic pump shaft body 1 and the joint face of magnetic pump shaft body 1 and interior magnetic rotor 13, has effectively promoted the durability of pump shaft.

Further, the inboard fixedly connected with of axle sleeve 2 is a plurality of card strip 9 that annular array distributes, and the vertical cross-section of card strip 9 is T shape structure, offered a plurality of and card strip 9 one-to-one's draw-in groove 10 on the outer wall of magnetic pump shaft body 1, card strip 9 cooperation draw-in groove 10 can play the effect of reinforcing the relation of connection between axle sleeve 2 and magnetic pump shaft body 1, can avoid magnetic pump shaft body 1 to take place relative rotation and produce the condition that the clearance leads to the medium infiltration between high-speed rotatory in-process and axle sleeve 2.

Further, one side of the shaft sleeve 2 far away from the sealing sleeve 3 is provided with an end cover 11, the end cover 11 is sleeved on the outer side of the magnetic pump shaft, the end cover 11 is connected with the shaft sleeve 2 through screw threads in a screwing mode, the shaft sleeve 2 can be replaced independently by rotating the lower end cover 11 to withdraw the shaft sleeve 2, and the pump shaft structure is convenient to maintain regularly.

Further, the inner side of the fixed sleeve 5 is provided with a sealing ring 6, and the sealing ring 6 is positioned on one side of the movable sleeve 7 far away from the mounting ring 8, so that the tightness can be improved, and the probability of medium penetrating into the sealing sleeve 3 can be reduced.

Further, one side of the shaft sleeve 2, which is close to the material guiding sleeve 4, is attached to the material guiding sleeve 4, and a sealing gasket 12 matched with the shaft sleeve 2 is embedded on the outer wall of the material guiding sleeve 4, so that the sealing performance can be improved, and the probability that a medium permeates between the shaft sleeve 2 and the pump shaft body 1 of the magnetic pump from the connecting surface can be reduced.

Further, the gasket 6 and the gasket 12 are made of rubber materials having good corrosion resistance, such as fluororubber, ethylene propylene diene monomer, and fluorosilicone rubber.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a pump shaft structure of magnetic drive pump, includes magnetic drive pump shaft body (1), its characterized in that: the outside cover of magnetic pump shaft body (1) is equipped with seal cover (3), seal cover (3) are including leading material cover (4), lead material cover (4) and be round platform shape sleeve structure, one side fixedly connected with fixed cover (5) of material cover (4), the inboard of fixed cover (5) is provided with movable sleeve (7), movable sleeve (7) are connected through the screw thread spin with fixed cover (5), one side fixedly connected with that fixed cover (5) was kept away from to movable sleeve (7) is with fixed cover (5) matched with collar (8), the outer wall of collar (8) is the same with the structure of round platform outer wall, the cover is equipped with on the outer wall of magnetic pump shaft body (1) and seal cover (3) matched with axle sleeve (2).

2. The pump shaft structure of a magnetic pump of claim 1, wherein: the inner side of the shaft sleeve (2) is fixedly connected with a plurality of clamping strips (9) distributed in an annular array, the vertical section of each clamping strip (9) is of a T-shaped structure, and a plurality of clamping grooves (10) corresponding to the clamping strips (9) one by one are formed in the outer wall of the pump shaft body (1) of the magnetic pump.

3. The pump shaft structure of a magnetic pump according to claim 2, wherein: one side of the shaft sleeve (2) far away from the sealing sleeve (3) is provided with an end cover (11), the end cover (11) is sleeved on the outer side of the pump shaft of the magnetic pump, and the end cover (11) is connected with the shaft sleeve (2) through screw threads in a screwing mode.

4. The pump shaft structure of a magnetic pump of claim 1, wherein: the inner side of the fixed sleeve (5) is provided with a sealing ring (6), and the sealing ring (6) is positioned at one side of the movable sleeve (7) far away from the mounting ring (8).

5. The pump shaft structure of a magnetic pump of claim 4, wherein: one side of the shaft sleeve (2) close to the material guiding sleeve (4) is attached to the material guiding sleeve (4), and a sealing gasket (12) matched with the shaft sleeve (2) is embedded on the outer wall of the material guiding sleeve (4).

6. The pump shaft structure of a magnetic pump of claim 5, wherein: the sealing ring (6) and the sealing gasket (12) are made of rubber materials with good corrosion resistance.