CN215979919U - Novel herringbone tooth magnetic drive pump with axial force control - Google Patents

Abstract

The utility model discloses a novel herringbone tooth magnetic pump with axial force control, which relates to the field of magnetic pumps and comprises an outer magnetic rotor, wherein a connecting ring is welded on the outer side edge of the outer magnetic rotor, connecting holes are uniformly formed in the side edge of the connecting ring, an outer magnet I is uniformly clamped on the inner side edge of the outer magnetic rotor, an inner magnetic rotor is horizontally sleeved on the inner side edge of the outer magnetic rotor, an inner magnet I is uniformly clamped on the outer side edge of the inner magnetic rotor, an inner magnet II is uniformly clamped on the outer side edge of the inner magnetic rotor, magnetic clamping channels are uniformly formed in the outer side edge of the inner magnetic rotor, the connecting ring is fixedly welded on the inner side edge of the inner magnetic rotor, and a fixed inner block is horizontally welded on the inner side edge of the connecting ring. According to the utility model, the outer magnet group and the inner magnet group are arranged in a herringbone manner, so that the axial movement of the pump shaft is effectively prevented, and meanwhile, a combined pull-push magnetic circuit is formed by the arrangement manner of the magnets, so that the torque of the magnetic circuit is improved.

Description

Novel herringbone tooth magnetic drive pump with axial force control

Technical Field

The utility model relates to the technical field of magnetic pumps, in particular to a novel herringbone-tooth magnetic pump with axial force control.

Background

The magnetic pump is a new product applying the working principle of a permanent magnet coupling to a centrifugal pump, and drives an outer magnetic rotor to rotate through a motor, and drives an inner magnetic rotor connected with an impeller to synchronously rotate by utilizing the characteristic that magnetic field can penetrate through air and nonmagnetic substances, so that the non-contact transmission of power is realized. The magnetic pump has isolating sleeve between the inner magnetic rotor, the pump shaft and the outer magnetic rotor to seal the pump shaft and the inner magnetic rotor and avoid leakage of medium, so that it is especially suitable for conveying dangerous medium, which is toxic, inflammable, explosive, high temperature, high corrosion, etc. and has reliability playing important role in petroleum, chemical, pharmaceutical, military, metallurgy, etc.

The prior patent discloses a permanent magnet rotor (CN201921064551.9) with herringbone magnetic poles, which comprises a plurality of tile-shaped permanent magnets, a cylindrical magnetic yoke and a pressure plate, wherein the tile-shaped permanent magnets are in parallelogram shapes, the front section permanent magnets and the rear section permanent magnets with the same magnetism are connected through end faces to form the herringbone magnetic poles, and the polarities of the adjacent herringbone magnetic poles in the circumferential direction are opposite. The device reduces the pulsation torque, is convenient to process, and does not greatly improve the axial movement of the control pump shaft and the bearing capacity of the magnetic pump. When the existing magnetic pump operates, the temperature rise of the bearing is aggravated due to abrasion, so that the service life of the bearing is influenced, and the overall performance of the magnetic pump is finally reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel herringbone tooth magnetic pump with axial force control, and aims to solve the problems that the temperature rise of a bearing is aggravated due to abrasion when the existing magnetic pump provided in the background technology is operated, the service life of the bearing is further influenced, and the overall performance of the magnetic pump is finally reduced.

In order to achieve the purpose, the utility model provides the following technical scheme:

a novel herringbone tooth magnetic pump with axial force control comprises an outer magnetic rotor, a connecting ring is welded on the outer side edge of the outer magnetic rotor, the side edge of the connecting ring is uniformly provided with connecting holes, the inner side edge of the outer magnet rotor is uniformly clamped with a first outer magnet, the inner side of the outer magnetic rotor is horizontally sleeved with an inner magnetic rotor, the outer side of the inner magnetic rotor is uniformly clamped with an inner magnet I, the outer side edge of the inner magnetic rotor is uniformly clamped with a second inner magnet, the outer side edge of the inner magnetic rotor is uniformly provided with a magnetic clamping channel, a connecting ring I is fixedly welded at the inner side edge of the inner magnetic rotor, a fixed inner block is horizontally welded at the inner side edge of the connecting ring I, inner clamping grooves are uniformly formed in the inner side edge of the outer magnet rotor, a second outer magnet is fixedly clamped and connected to the inner side edge of each inner clamping groove, and a middle interpenetration hole is horizontally formed in the position of a central axis of the fixed inner block.

As a preferred embodiment of the present invention: the fixed outside limit one end position that sets up at outer magnetic rotor of connecting ring, and one side of connecting ring and the one end of outer magnetic rotor keep in same horizontal plane you position, and the number of connecting hole is a plurality of, and the equal level of a plurality of connecting holes runs through the side setting of connecting ring, and the equal equidistance of a plurality of connecting holes is cyclic annular to be arranged and is set up the side position at the connecting ring.

As a preferred embodiment of the present invention: the number of the first outer magnets is multiple, the multiple first outer magnets are obliquely clamped and connected in a one-to-one corresponding mode respectively at the inner side positions of the inner clamping grooves, and the multiple first outer magnets are arranged in an annular equidistant mode at one end position, far away from the connecting ring, of the inner side of the outer magnetic rotor.

As a preferred embodiment of the present invention: the inner magnetic rotor is horizontally arranged at the position of the central axis of the outer magnetic rotor in a tubular shape, the number of the inner magnets I and the number of the outer magnets I are kept consistent and are arranged in a one-to-one correspondence mode, and the inner magnets I are uniformly clamped and connected at the inner side edge of the magnetic clamping channel in a one-to-one correspondence mode.

As a preferred embodiment of the present invention: the number of the inner magnets II and the number of the inner magnets I are kept consistent, the inner magnets II and the inner magnets I are in one-to-one correspondence, herringbone annular arrangement is achieved, the magnetic poles are N-level and S-level respectively, polarities of the herringbone magnetic poles adjacent to the circumferential direction are opposite, the number of the magnetic clamping channels is multiple, and the plurality of magnetic clamping channels are arranged in a circular equidistant mode in two-two mode respectively and are close to two ends of the outer side edge of the inner magnetic rotor.

As a preferred embodiment of the present invention: the inner side edge of the inner magnetic rotor is fixedly arranged close to one end, the fixed inner block is horizontally and fixedly arranged at the position of the central axis of the inner magnetic rotor, the number, specification and size and arrangement mode of the inner clamping grooves are consistent with those of the clamping magnetic grooves, the second outer magnets and the first outer magnets are correspondingly arranged in a herringbone mode one by one, magnetic poles are respectively N-level and S-level, and the polarities of the adjacent herringbone magnetic poles in the circumferential direction are opposite.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model forms opposite attraction by the magnetic pole N grade of the first outer magnet and the magnetic pole S grade of the first inner magnet along the radial direction correspondingly, forms opposite attraction by the magnetic pole S grade of the second outer magnet and the magnetic pole N grade of the second inner magnet along the radial direction correspondingly, can form a combined pulling and pushing magnetic circuit when rotating, thereby improving the torque of the magnetic circuit, leads the inner magnetic group and the outer magnetic group to be staggered because of axial float caused by stress when the pump shaft runs, drives the inner magnetic rotor to move leftwards when the pump shaft moves leftwards, further leads the magnetic pole N grade of the second inner magnet to be close to the magnetic pole N pole of the first outer magnet, leads the magnetic poles N poles close to each other to axially adjust a force in an opposite direction to the pump shaft according to the principle of like pole repulsion and opposite attraction of the magnets, leads the magnetic poles S poles close to axially adjust a force in an opposite direction to the pump shaft when the pump shaft moves rightwards, therefore, the purposes of actively balancing the axial force and preventing the pump shaft from axially moving are achieved, and meanwhile, the magnetic force of the two groups of magnetic circuits is greater than that of one group of magnetic circuits, so that the bearing capacity of the magnetic pump is improved.

2. The utility model forms two groups of magnetic groups by the first external magnet and the first internal magnet, and the second external magnet and the second internal magnet, and the bearing capacity of the magnetic group is larger than that of a magnetic circuit. The inner and outer magnet sets adopt the arrangement mode of NGSG, and can form a combined pull-push magnetic circuit when rotating, thereby improving the torque of the magnetic circuit. The outer magnet rotor and the inner magnet rotor are respectively provided with a herringbone arrangement outer magnet group and an inner magnet group, when the pump shaft axially jumps due to stress, the herringbone arrangement two groups of magnet groups can realize active control of the axial force of the pump shaft according to the principle that like poles repel and special-shaped magnets attract, and the pump shaft is prevented from axially jumping.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic overall perspective view of a novel herringbone-toothed magnetic pump with axial force control;

FIG. 2 is a schematic structural diagram of three-dimensional connection details of an inner magnetic rotor of a novel herringbone tooth magnetic force pump with axial force control;

FIG. 3 is a schematic structural diagram of three-dimensional connection details of an outer magnetic rotor of a novel herringbone tooth magnetic pump with axial force control;

FIG. 4 is a schematic structural diagram of a front section connection detail of an inner magnetic rotor of a novel herringbone tooth magnetic force pump with axial force control;

FIG. 5 is a schematic structural view of a connection detail in a front view section of an outer magnetic rotor of a novel herringbone tooth magnetic pump with axial force control;

FIG. 6 is a schematic structural diagram of the connection details of the front view section two of the outer magnetic rotor of the novel herringbone tooth magnetic pump with axial force control.

In the figure: 1. an outer magnetic rotor; 2. a connecting ring; 3. connecting holes; 4. a first external magnet; 5. an inner magnetic rotor; 6. a first inner magnet; 7. a second inner magnet; 8. a magnetism clamping channel; 9. a connecting ring I; 10. fixing the inner block; 11. an inner clamping groove; 12. a second external magnet; 13. and (4) inserting the mesopores.

Detailed Description

Referring to fig. 1, in the embodiment of the present invention, a novel herringbone gear magnetic pump with axial force control includes an outer magnetic rotor 1, a connection ring 2 is welded to an outer side edge of the outer magnetic rotor 1, connection holes 3 are uniformly formed in a side edge of the connection ring 2, the connection ring 2 is fixedly disposed at one end position of the outer side edge of the outer magnetic rotor 1, one side edge of the connection ring 2 and one end of the outer magnetic rotor 1 are maintained at the same horizontal plane, the number of the connection holes 3 is plural, the connection holes 3 are horizontally arranged to penetrate through the side edge of the connection ring 2, the connection holes 3 are uniformly arranged at the side edge position of the connection ring 2 in an annular arrangement, an inner side edge of the outer magnetic rotor 1 is uniformly clamped with outer magnets one 4, the outer magnets one 4 are plural, the outer magnets one 4 are respectively clamped and obliquely in a one-to-one correspondence manner at the inner side edge position of an inner clamping groove 11, the outer magnets one 4 are arranged at equal intervals in an annular arrangement manner at one end position of the inner side edge of the outer magnetic rotor 1 far from the connection ring 2, an inner magnet rotor 5 is horizontally sleeved on the inner side of the outer magnet rotor 1 in a sleeved mode, inner magnets 6 are uniformly clamped on the outer side edge of the inner magnet rotor 5, the inner magnet rotor 5 is horizontally arranged on the central axis of the outer magnet rotor 1 in a tubular mode, the number of the inner magnets 6 is consistent with that of the outer magnets 4, the inner magnets are arranged in a one-to-one corresponding mode, and the inner magnets 6 are uniformly and correspondingly clamped on the inner side edge of the magnet clamping channel 8 in a one-to-one corresponding mode;

referring to fig. 2-6, in the embodiment of the present invention, a novel herringbone tooth magnetic pump with axial force control is provided, wherein inner magnets 7 are uniformly clamped at the outer side edge of an inner magnet rotor 5, magnetic clamping channels 8 are uniformly formed at the outer side edge of the inner magnet rotor 5, the number of the inner magnets 7 is consistent with the number of the inner magnets 6, and the inner magnets are arranged in a herringbone annular manner one by one, the magnetic poles are N and S levels respectively, the polarities of circumferentially adjacent herringbone magnetic poles are opposite, the number of the magnetic clamping channels 8 is multiple, the magnetic clamping channels 8 are arranged in a group in an annular manner at equal intervals at positions close to two ends at the outer side edge of the inner magnet rotor 5, a connecting ring 9 is fixedly welded at the inner side edge of the inner magnet rotor 5, a fixed inner block 10 is horizontally welded at the inner side edge of the connecting ring 9, inner clamping grooves 11 are uniformly formed at the inner side edge of the inner magnet rotor 1, the inboard fixed joint of interior joint groove 11 has two 12 outer magnets, the inboard side of magnet rotor 5 is close to one end position including the fixed setting of go-between 9, the fixed axis position that sets up including magnet rotor 5 of fixed interior 10 level, the number specification and dimension and the mode of arranging of interior joint groove 11 all keep unanimous setting with card magnetic channel 8, two 12 outer magnets and one 4 outer magnets equal one-to-one each other are chevron shape and arrange the setting, the magnetic pole is N and S level respectively, the adjacent chevron shape magnetic pole polarity of circumferencial direction is opposite, the centre axis position level of fixed interior 10 has been seted up and has been alternated mesopore 13.

The components are standard parts in general or known to those skilled in the art, and their structure and principle are known to those skilled in the art through technical manuals or through routine experimentation.

The working principle of the utility model is as follows:

the magnetic pole N level of the first outer magnet 4 and the magnetic pole S level of the first inner magnet 6 correspondingly form opposite attraction along the radial direction, the magnetic pole S level of the second outer magnet 12 and the magnetic pole N level of the second inner magnet 7 correspondingly form opposite attraction along the radial direction, a combined pulling and pushing magnetic circuit can be formed during rotation, so that the torque of the magnetic circuit is improved, when the pump shaft runs, the inner magnetic group and the outer magnetic group are staggered due to axial play caused by stress, when the pump shaft moves leftwards, the inner magnetic rotor 5 is driven to move leftwards, so that the magnetic pole N level of the second inner magnet 7 is close to the magnetic pole N level of the first outer magnet 4, according to the principle that like poles repel each other and opposite attraction of the magnets, the magnetic poles N level close to each other can axially adjust the force in the opposite direction of the pump shaft, and similarly when the pump shaft moves rightwards, the magnetic poles S level close to each other can also axially adjust the force in the opposite direction of the pump shaft, therefore, the purposes of actively balancing the axial force and preventing the pump shaft from axially moving are achieved, and meanwhile, the magnetic force of the two groups of magnetic circuits is greater than that of one group of magnetic circuits, so that the bearing capacity of the magnetic pump is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.

Claims (6)

1. The novel herringbone tooth magnetic pump with the axial force control comprises an outer magnetic rotor (1) and is characterized in that a connecting ring (2) is welded on the outer side edge of the outer magnetic rotor (1), connecting holes (3) are uniformly formed in the side edge of the connecting ring (2), a first outer magnet (4) is uniformly clamped on the inner side edge of the outer magnetic rotor (1), an inner magnetic rotor (5) is horizontally sleeved on the inner side edge of the outer magnetic rotor (1), a first inner magnet (6) is uniformly clamped on the outer side edge of the inner magnetic rotor (5), a second inner magnet (7) is uniformly clamped on the outer side edge of the inner magnetic rotor (5), magnetic clamping channels (8) are uniformly formed in the outer side edge of the inner magnetic rotor (5), a first connecting ring (9) is fixedly welded on the inner side edge of the inner magnetic rotor (5), and a fixed inner block (10) is horizontally welded on the inner side edge of the connecting ring (9), the inner side of the outer magnetic rotor (1) is uniformly provided with an inner clamping groove (11), the inner side of the inner clamping groove (11) is fixedly clamped with a second outer magnet (12), and the central axis position of the fixed inner block (10) is horizontally provided with a middle penetrating hole (13).

2. The novel herringbone tooth magnetic pump with the axial force control function is characterized in that the connecting ring (2) is fixedly arranged at one end of the outer side of the outer magnetic rotor (1), one side of the connecting ring (2) and one end of the outer magnetic rotor (1) are kept at the same horizontal plane, the number of the connecting holes (3) is multiple, the connecting holes (3) horizontally penetrate through the side of the connecting ring (2), and the connecting holes (3) are annularly arranged at the side of the connecting ring (2) at equal intervals.

3. The novel herringbone gear magnetic pump with the axial force control function is characterized in that the number of the first outer magnets (4) is multiple, the multiple first outer magnets (4) are obliquely clamped and arranged at the inner side position of the inner clamping groove (11) in a one-to-one correspondence mode respectively, and the multiple first outer magnets (4) are annularly and equidistantly arranged at one end position, far away from the connecting ring (2), of the inner side of the outer magnetic rotor (1).

4. The novel herringbone tooth magnetic pump with the axial force control function is characterized in that the inner magnet rotors (5) are horizontally arranged at the central axis position of the outer magnet rotor (1) in a tubular shape, the number of the inner magnets I (6) is consistent with that of the outer magnets I (4), the inner magnets I (6) are arranged in a one-to-one correspondence mode, and the inner magnets I (6) are correspondingly clamped and arranged at the inner side edge position of the clamping magnet channel groove (8).

5. The novel herringbone-tooth magnetic pump with the axial force control function according to claim 1, wherein the number of the second inner magnets (7) and the number of the first inner magnets (6) are kept consistent, the inner magnets correspond to each other in a herringbone annular arrangement mode, the magnetic poles are respectively in N and S levels, polarities of herringbone magnetic poles adjacent in the circumferential direction are opposite, the number of the magnetic clamping grooves (8) is multiple, and the plurality of magnetic clamping grooves (8) are respectively arranged on the outer side edge of the inner magnetic rotor (5) in a group in a circular and equidistant mode and are close to two ends.

6. The novel herringbone tooth magnetic pump with the axial force control function is characterized in that the connecting ring I (9) is fixedly arranged at a position close to one end of the inner side edge of the inner magnetic rotor (5), the fixed inner block (10) is horizontally and fixedly arranged at the position of the central axis of the inner magnetic rotor (5), the number, specification and size and the arrangement mode of the inner clamping grooves (11) are consistent with those of the magnetic clamping grooves (8), the outer magnets II (12) and the outer magnets I (4) are correspondingly arranged in a herringbone manner one by one, the magnetic poles are respectively in an N level and an S level, and the polarities of the herringbone magnetic poles adjacent in the circumferential direction are opposite.

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