CN220173015U

CN220173015U - Magnetic suspension rotor

Info

Publication number: CN220173015U
Application number: CN202321404917.9U
Authority: CN
Inventors: 张凯逸; 张民
Original assignee: Wuxi Alien Environmental Technology Co ltd
Current assignee: Wuxi Alien Environmental Technology Co ltd
Priority date: 2023-06-05
Filing date: 2023-06-05
Publication date: 2023-12-12
Anticipated expiration: 2033-06-05

Abstract

The utility model discloses a magnetic suspension rotor which comprises a rotor body, wherein the rotor body is arranged in a magnetic suspension motor shell, the outer side of the rotor body wraps a motor stator, one end of the rotor body is provided with a radial magnetic suspension bearing, the other end of the rotor body is provided with a position sensor, the left side of the rotor body is in threaded connection with an impeller, the rotor body consists of a first rotor shaft and a second rotor shaft, and the end part of the first rotor shaft is fixedly connected with a rotor output shaft. This magnetic suspension rotor, splice fixedly through drive seat, drive slot and eight group fixing bolt between first rotor shaft and the second rotor shaft, can dismantle between first rotor shaft and the second rotor shaft, first rotor shaft and second rotor shaft and the structural component on it when taking place to damage, can change work to corresponding rotor shaft according to the damage degree of first rotor shaft and second rotor shaft, need not throw away whole rotor, reduce magnetic suspension motor's cost of maintenance.

Description

Magnetic suspension rotor

Technical Field

The utility model relates to the field of magnetic suspension motors, in particular to a magnetic suspension rotor.

Background

The magnetic suspension motor is a novel electromechanical integrated product with the characteristics of high rotating speed, no mechanical abrasion, no need of lubrication, small vibration noise, long service life and high efficiency;

the magnetic suspension motor is widely applied to a plurality of products such as a blower, a vacuum pump, a refrigerant compressor and the like due to the characteristics of high energy saving efficiency, low noise, environmental protection, no maintenance and the like, and is continuously developed and extended to other fields, so that the magnetic suspension motor has wide market prospect; under the normal working rotation state, the high-speed rotating magnetic suspension motor operates stably;

the magnetic suspension motor mainly comprises a shell, a rotor and an electronic stator, wherein the rotor is a shaft rod, the rotating shaft is of an integrally formed structure in production, and when the rotor shaft is bent or damaged in transportation and use, the whole rotor shaft cannot be used, so that the maintenance cost of the magnetic suspension motor can be increased.

Disclosure of Invention

The present utility model aims to provide a magnetic levitation rotor which solves the above mentioned drawbacks of the prior art.

In order to achieve the above-mentioned purpose, provide a magnetic suspension rotor, including the rotor body, the rotor body sets up in the inside of magnetic suspension motor housing, and the outside parcel motor stator of rotor body, radial magnetic suspension bearing is installed to rotor body one end simultaneously to rotor body other end installation position sensor, the left side spiro union installation impeller of rotor body, and the rotor body comprises first rotor shaft and second rotor shaft two parts, and first rotor shaft tip and rotor output shaft rigid coupling simultaneously to second rotor shaft tip and connecting axle rigid coupling evenly splice fixedly through six sets of fixing bolt between first rotor shaft and the second rotor shaft.

Preferably, the transmission groove is formed in the second rotor shaft, the transmission seat is mounted at the end of the first rotor shaft, meanwhile, the transmission seat is matched with the transmission groove in size, and the transmission seat is inserted into the transmission groove.

Preferably, the length of the transmission seat is consistent with the depth of the transmission groove, and the axial sections of the transmission seat and the transmission groove are all regular octagon.

Preferably, eight groups of inclined holes and through holes are uniformly formed in the outer side of the end part of the first rotor shaft, eight groups of screw holes are uniformly formed in the end part of the second rotor shaft, and meanwhile, the fixing bolts penetrate through the inclined holes and the through holes and are screwed into the screw holes.

Preferably, the diameters of the first rotor shaft and the second rotor shaft are consistent, a detachable structure is arranged between the first rotor shaft and the second rotor shaft, and meanwhile, the first rotor shaft and the second rotor shaft are spliced and fixed through a transmission seat, a transmission groove and eight groups of fixing bolts.

Preferably, the bottom plate of impeller evenly fixes setting up four sets of location atress pieces, and the outside of connecting axle evenly sets up four sets of location atress grooves, location atress groove and the size looks adaptation of location atress piece simultaneously to the location atress piece is pegged graft in the inside of location atress groove, and the impeller is fixed a position the installation through four sets of location atress pieces and location atress groove on the connecting axle.

Compared with the prior art, the utility model has the beneficial effects that: the first rotor shaft and the second rotor shaft are spliced and fixed through the transmission seat, the transmission groove and the eight groups of fixing bolts, the first rotor shaft and the second rotor shaft are detachable, when the first rotor shaft, the second rotor shaft and structural devices on the first rotor shaft and the second rotor shaft are damaged, the corresponding rotor shafts can be replaced according to the damage degree of the first rotor shaft and the second rotor shaft, the whole rotor is not required to be thrown away, and the maintenance cost of the magnetic suspension motor is reduced.

Drawings

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

FIG. 2 is a schematic view of a rotor body according to the present utility model;

FIG. 3 is a schematic view of section A-A of FIG. 2, which is a block diagram of the present utility model;

FIG. 4 is a schematic view of section B-B of FIG. 2, which is a structural diagram of the present utility model;

fig. 5 is a schematic view of a splicing structure of a rotor body with a structure according to the present utility model.

Reference numerals in the drawings: 1. a magnetic levitation motor housing; 2. a motor stator; 3. radial magnetic suspension bearing; 4. a position sensor; 5. an impeller; 6. a rotor body; 60. a rotor output shaft; 61. a first rotor shaft; 62. inclined holes; 63. perforating; 64. a screw hole; 65. a transmission seat; 66. a transmission groove; 67. a second rotor shaft; 68. a connecting shaft; 69. positioning a stress block; 70. positioning a stress groove; 71. and (5) fixing bolts.

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. 1-5, the present utility model provides a magnetic suspension rotor, which comprises a rotor body 6, wherein the rotor body 6 is disposed inside a magnetic suspension motor housing 1, the outer side of the rotor body 6 wraps a motor stator 2, meanwhile, one end of the rotor body 6 is provided with a radial magnetic suspension bearing 3, the other end of the rotor body 6 is provided with a position sensor 4, the left side of the rotor body 6 is in threaded connection with an impeller 5, the rotor body 6 is composed of a first rotor shaft 61 and a second rotor shaft 67, meanwhile, the end of the first rotor shaft 61 is fixedly connected with a rotor output shaft 60, the end of the second rotor shaft 67 is fixedly connected with a connecting shaft 68, and the first rotor shaft 61 and the second rotor shaft 67 are uniformly spliced and fixed through six groups of fixing bolts 71.

Working principle: when in use, the rotor body 6 is formed by combining the first rotor shaft 61 and the second rotor shaft 67, the first rotor shaft 61 and the second rotor shaft 67 are spliced and fixed through the transmission seat 65, the transmission groove 66 and the eight groups of fixing bolts 71, the first rotor shaft 61 and the second rotor shaft 67 are detachable, and when the first rotor shaft 61, the second rotor shaft 67 and structural devices on the first rotor shaft 61 and the second rotor shaft 67 are damaged, the corresponding rotor shafts can be replaced according to the damage degree of the first rotor shaft 61 and the second rotor shaft 67, the whole rotor is not required to be thrown away, and the maintenance cost of the magnetic levitation motor is reduced.

As a preferred embodiment, the second rotor shaft 67 is provided with a transmission groove 66 inside, the end of the first rotor shaft 61 is provided with a transmission seat 65, the transmission seat 65 is matched with the transmission groove 66 in size, and the transmission seat 65 is inserted into the transmission groove 66.

As shown in fig. 2: the transmission seat 65 is inserted into the transmission groove 66, and can be used for connecting and fixing the second rotor shaft 67 and the first rotor shaft 61, and the transmission seat 65 is inserted into the transmission groove 66, so that torque transmission can be performed on the second rotor shaft 67 and the first rotor shaft 61.

As a preferred embodiment, the length of the transmission seat 65 is consistent with the depth of the transmission groove 66, and the axial sections of the transmission seat 65 and the transmission groove 66 are all regular octagon shapes.

As shown in fig. 2-3: the axial sections of the transmission seat 65 and the transmission groove 66 are regular octagons, and the contact area between the transmission seat 65 and the transmission groove 66 can be increased by the transmission seat 65 and the transmission groove 66, so that the transmission is more stable during power transmission.

As a preferred embodiment, eight groups of inclined holes 62 and through holes 63 are uniformly formed on the outer side of the end part of the first rotor shaft 61, eight groups of screw holes 64 are uniformly formed on the end part of the second rotor shaft 67, and meanwhile, the fixing bolts 71 penetrate through the inclined holes 62 and the through holes 63 and are screwed into the screw holes 64.

As shown in fig. 2 and 4-5: the first rotor shaft 61 and the second rotor shaft 67 are fixedly mounted by eight groups of fixing bolts 71, and the surface connection position of the first rotor shaft 61 and the second rotor shaft 67 is smooth.

As a preferred embodiment, the diameters of the first rotor shaft 61 and the second rotor shaft 67 are consistent, a detachable structure is arranged between the first rotor shaft 61 and the second rotor shaft 67, and meanwhile, the first rotor shaft 61 and the second rotor shaft 67 are spliced and fixed through the transmission seat 65, the transmission groove 66 and the eight groups of fixing bolts 71.

As a preferred embodiment, the bottom plate of the impeller 5 is uniformly and fixedly provided with four groups of positioning stress blocks 69, the outer side of the connecting shaft 68 is uniformly provided with four groups of positioning stress grooves 70, meanwhile, the positioning stress grooves 70 are matched with the positioning stress blocks 69 in size, the positioning stress blocks 69 are inserted into the positioning stress grooves 70, and the impeller 5 is positioned and installed on the connecting shaft 68 through the four groups of positioning stress blocks 69 and the positioning stress grooves 70.

As shown in fig. 2: when the impeller 5 is driven to rotate, the positioning stress block 69 is inserted into the positioning stress groove 70, so that the torque between the impeller 5 and the connecting shaft 68 can be increased, the power transmission is more stable, and dislocation between the impeller 5 and the connecting shaft 68 can not occur.

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. The utility model provides a magnetic suspension rotor, includes rotor body (6), and rotor body (6) set up in the inside of magnetic suspension motor housing (1), and outside parcel motor stator (2) of rotor body (6), radial magnetic bearing (3) are installed to rotor body (6) one end simultaneously to rotor body (6) other end installation position sensor (4), its characterized in that: the left side spiro union installation impeller (5) of rotor body (6), and rotor body (6) are by first rotor shaft (61) and second rotor shaft (67) two parts are constituteed, and first rotor shaft (61) tip and rotor output shaft (60) rigid coupling simultaneously to second rotor shaft (67) tip and connecting axle (68) rigid coupling, splice fixedly through six sets of fixing bolt (71) between first rotor shaft (61) and second rotor shaft (67) evenly.

2. A magnetic levitation rotor according to claim 1, wherein: the inside of second rotor shaft (67) is offered transmission groove (66), and first rotor shaft (61) tip installation transmission seat (65), simultaneously transmission seat (65) and the size looks adaptation of transmission groove (66) to transmission seat (65) peg graft in the inside of transmission groove (66).

3. A magnetic levitation rotor according to claim 2, wherein: the length of the transmission seat (65) is consistent with the depth of the transmission groove (66), and the axial sections of the transmission seat (65) and the transmission groove (66) are all regular octagons.

4. A magnetic levitation rotor according to claim 1, wherein: eight groups of inclined holes (62) and through holes (63) are uniformly formed in the outer side of the end part of the first rotor shaft (61), eight groups of screw holes (64) are uniformly formed in the end part of the second rotor shaft (67), and meanwhile, fixing bolts (71) penetrate through the inclined holes (62) and the through holes (63) to be in threaded connection with the inside of the screw holes (64).

5. A magnetic levitation rotor according to claim 1, wherein: the diameters of the first rotor shaft (61) and the second rotor shaft (67) are consistent, a detachable structure is arranged between the first rotor shaft (61) and the second rotor shaft (67), and meanwhile, the first rotor shaft (61) and the second rotor shaft (67) are spliced and fixed through a transmission seat (65), a transmission groove (66) and eight groups of fixing bolts (71).

6. A magnetic levitation rotor according to claim 1, wherein: the bottom plate of impeller (5) is evenly fixed and is set up four sets of location atress pieces (69), and four sets of location atress grooves (70) are evenly seted up in the outside of connecting axle (68), and the size looks adaptation of location atress piece (69) simultaneously location atress groove (70) to location atress piece (69) are pegged graft in the inside of location atress groove (70), and impeller (5) are through four sets of location atress pieces (69) and location atress groove (70) location installation on connecting axle (68).