CN111120510B

CN111120510B - High-rigidity spherical Lorentz deflection bearing with auxiliary air gap

Info

Publication number: CN111120510B
Application number: CN201911414747.0A
Authority: CN
Inventors: 刘爱民; 李衡; 熊颖; 崔刚
Original assignee: Beijing Halbeck Technology Co ltd
Current assignee: Beijing Halbeck Technology Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-31
Publication date: 2021-04-09
Anticipated expiration: 2039-12-31
Also published as: CN111120510A

Abstract

A high stiffness spherical lorentz yaw bearing with an auxiliary air gap comprising a rotor system and a stator system, the rotor system comprising: the mounting sleeve, the auxiliary magnetic steel, the magnetic conduction sleeve, the magnetism isolation ring, the trapezoidal spherical magnetic steel, the spherical magnetism smoothing ring, the trapezoidal spherical magnetic steel gasket, the mounting sleeve lock nut, the assembly lock nut and the rotor turntable; the stator system includes: stator frame, winding and epoxy resin glue; the stator/rotor system presents an auxiliary air gap and an air gap. According to the invention, the double-coil auxiliary magnetic steel and the four-coil main magnetic steel are connected in series in the magnetic circuit, so that the magnetomotive force of the magnetic circuit is improved. Meanwhile, two auxiliary air gaps are additionally arranged beside the double-coil auxiliary magnetic steel, so that most of the magnetic flux of the main magnetic circuit penetrates through the auxiliary air gaps to form a loop, the magnetic resistance of the magnetic circuit is reduced, the utilization rate of magnetomotive force of the four-coil main magnetic steel is improved, and the air gap flux density and the suspension rigidity are increased.

Description

High-rigidity spherical Lorentz deflection bearing with auxiliary air gap

Technical Field

The invention relates to a non-contact magnetic suspension bearing with an auxiliary air gap, in particular to a high-rigidity spherical Lorentz deflection bearing which is used for stabilizing a suspension platform and can be controlled in a high dynamic mode.

Background

The inertial stabilization platform utilizes an inertial measurement device to detect the attitude information of a platform mover in real time, isolates various disturbances such as attitude change of carriers (airplanes, ships, spacecrafts and the like) and external impact, and accurately controls the load attitude. The inertially stabilized platform can be classified into four types, namely a mechanical type, an air floating type, a liquid floating type and a magnetic suspension type according to different supporting modes. The mechanical stable platform is widely applied to the remote sensing observation field of satellites, airplanes, ships and warships and the like due to the advantages of simple structure and mature technology, but the further improvement of stable precision is restricted by inevitable friction and vibration in the mechanical transmission process among multiple frames and a rotary gap near zero rotating speed. The air-floating type stabilized platform eliminates the influence of friction, vibration and rotation clearance of the traditional mechanical stabilized platform, improves the stability precision, but has lower rigidity and insufficient control bandwidth, and is slightly insufficient when the air-floating type stabilized platform bears large load and is mechanically operated. The liquid floating type stable platform also avoids the interference of mechanical friction, vibration and a rotary gap to a platform system, has higher rigidity, but has lower control bandwidth and is not good at the moment of high-frequency interference. The magnetic suspension stabilizing platform adopts a magnetic suspension bearing, can perform high-rigidity high-bandwidth active control on the platform, and is an ideal attitude stabilizing mechanism in the field of remote sensing.

Magnetic levitation stabilization platforms can be classified into reluctance type and lorentz type according to the difference of the magnetic bearings on which the support platform works. The former has the advantages of high rigidity and low power consumption, but the linearity of electromagnetic force generated by the magnetic resistance bearing is poor, and the shape of an air gap before and after deflection of a rotor is changed to generate interference torque, so that the stability and the precision of a platform are difficult to further improve. The control torque generated by the Lorentz type stable platform has a linear relation with the current in the coil, the control precision is higher, and the platform control system is simplified. Therefore, lorentz force bearings may be an ideal support option for inertially stabilized platforms.

In the prior art, the two-degree-of-freedom lorentz force outer rotor spherical magnetic bearing disclosed in patent No. ZL201510243920.0 adopts a spherical shell-shaped air gap, can realize large-angle deflection, and has the advantages of good linearity, high bandwidth, good heat-conducting property and the like. Therefore, the trapezoidal spherical deflection lorentz force magnetic bearing disclosed in patent ZL201610983437.0 adopts a structure with four trapezoidal spherical magnetic steel rings on two sides, the number of the magnetic steel is doubled, the magnetomotive force in a loop is greatly improved on the basis of realizing large-angle deflection, and the suspension stiffness is greatly improved. In order to further improve the suspension stiffness of the bearing, the two-degree-of-freedom Halbach array deflection Lorentz force magnetic bearing disclosed in patent ZL201610920731.7 adopts double-side four-ring Halbach array magnetic steel to replace four-ring trapezoidal spherical magnetic steel at the corresponding position of the trapezoidal spherical deflection Lorentz force magnetic bearing disclosed in patent ZL 201610983437.0. Due to the adoption of Halbach array magnetic steel, the magnetomotive force in a loop is improved, the air gap magnetic field intensity is enhanced, and the suspension stiffness of the bearing is improved. But the Halbach array magnetic steel has more magnetic leakage at the edge, reduces the air gap flux density at the edge of the air gap and has poor uniformity of the air gap flux density. In order to weaken magnetic leakage at the edge of magnetic steel and improve the flux density uniformity of an air gap, an implicit Lorentz force axial magnetic bearing with a V-shaped magnetic gathering effect described in patent publication ZL201710220886.4 and an implicit Lorentz force deflection magnetic bearing with a U-shaped magnetic gathering effect described in patent publication ZL201710220889.8 both adopt bilateral four-ring magnetic gathering configuration array magnetic steel to replace Halbach array magnetic steel in a two-degree-of-freedom Halbach array deflection Lorentz force magnetic bearing described in patent publication ZL201610920731.7, divergent magnetic flux of main magnetic flux at the edge of a magnetic pole is compressed through magnetic gathering flux, a magnetic path magnetic gathering effect is generated, and the flux density uniformity of the air gap is improved. Because the magnetomotive force of the array magnetic steel with the magnetic gathering configuration is larger than that of the Halbach array magnetic steel, the air gap flux density is greatly improved, and the suspension rigidity of the bearing is improved. Patent application 201810766501.9 discloses a high rigidity implicit lorentz force deflection magnetic bearing, on the basis of original bilateral four circles of radial magnetization magnet steel, add two circles of axial magnetization auxiliary magnet steel, promote the number of series connection magnet steel in the magnetic circuit return circuit to six circles, improved the magnetomotive force in the magnetic circuit return circuit, promoted bearing suspension rigidity. However, the magnetic steel series configuration increases the magnetomotive force of the magnetic circuit, increases the magnetic resistance of the whole magnetic circuit loop, reduces the utilization rate of the magnetomotive force of the original double-side four-ring magnetic steel and the auxiliary magnetic steel, and ensures that the bearing rigidity improvement effect is unsatisfactory.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to solve the technical problems that: the high-rigidity spherical Lorentz deflection bearing with the auxiliary air gap is provided, and double-coil auxiliary magnetic steel and four-coil main magnetic steel are connected in series in a magnetic circuit, so that the magnetomotive force of the magnetic circuit is improved. Meanwhile, two auxiliary air gaps are additionally arranged beside the double-coil auxiliary magnetic steel, so that most of the magnetic flux of the main magnetic circuit penetrates through the auxiliary air gaps to form a loop, the magnetic resistance of the magnetic circuit is reduced, the utilization rate of magnetomotive force of the four-coil main magnetic steel is improved, and the air gap flux density and the suspension rigidity are increased. In addition, the four circles of main magnetic steel adopt a trapezoidal spherical surface structure, and large-angle deflection of the bearing can be realized.

The technical solution of the invention is as follows: a high rigidity spherical Lorentz deflection bearing with an auxiliary air gap comprises a rotor system and a stator system, wherein the rotor system mainly comprises: the outer mounting sleeve, the outer auxiliary magnetic steel, the outer upper magnetic sleeve, the outer lower magnetic sleeve, the outer magnetism isolating ring, the outer upper trapezoidal spherical magnetic steel, the outer lower trapezoidal spherical magnetic steel, the outer upper spherical magnetism smoothing ring, the outer lower spherical magnetism smoothing ring, the outer upper magnetic steel washer, the outer lower magnetic steel washer, the outer mounting sleeve locking nut, the outer assembly locking nut, the rotor turntable, the inner mounting sleeve, the inner auxiliary magnetic steel, the inner upper magnetic sleeve, the inner lower magnetic sleeve, the inner magnetism isolating ring, the inner upper trapezoidal spherical magnetic steel, the inner lower trapezoidal spherical magnetic steel, the inner upper spherical magnetism smoothing ring, the inner lower spherical magnetism smoothing ring, the inner upper magnetic steel washer, the inner lower magnetic steel washer, the inner mounting sleeve locking nut and the inner assembly locking nut; the stator system mainly includes: the winding comprises a stator framework, a left winding, a right winding, a front winding, a rear winding and epoxy resin glue; the outer mounting sleeve is positioned at the radial outer side of the outer auxiliary magnetic steel, the outer upper magnetic conductive sleeve, the outer lower magnetic conductive sleeve, the outer magnetism isolating ring, the outer upper trapezoidal spherical magnetic steel, the outer lower trapezoidal spherical magnetic steel, the outer upper spherical magnetic sleeve, the outer lower spherical magnetic sleeve, the outer upper magnetic steel washer, the outer lower magnetic steel washer and the outer mounting sleeve locking nut, the outer auxiliary magnetic steel is positioned at the radial inner side center position of the outer mounting sleeve, the outer upper magnetic conductive sleeve and the outer lower magnetic conductive sleeve are respectively positioned at the axial upper end and the axial lower end of the outer auxiliary magnetic steel, the outer magnetism isolating ring is positioned at the radial inner side center position of the outer auxiliary magnetic steel, the outer upper trapezoidal spherical magnetic steel, the outer upper spherical magnetic sleeve and the outer upper magnetic steel washer are positioned at the radial inner side of the outer upper magnetic conductive sleeve and the axial upper end of the outer magnetism isolating ring, the outer lower trapezoidal spherical magnetic steel, the outer lower spherical magnetic sleeve and the outer lower magnetic steel washer are positioned at the radial inner side of the outer lower magnetic sleeve and the axial lower, an outer upper spherical surface down magnetic ring and an outer lower spherical surface down magnetic ring are respectively positioned at the axial upper end and the lower end of the outer magnetism isolating ring, the outer upper spherical surface down magnetic ring and the outer lower spherical surface down magnetic ring are respectively positioned at the radial inner sides of the outer upper trapezoidal spherical magnetic steel and the outer lower trapezoidal spherical magnetic steel, an outer upper magnetic steel washer is positioned at the axial upper end of the outer upper trapezoidal spherical magnetic steel and the outer upper spherical surface down magnetic ring, an outer lower magnetic steel washer is positioned at the radial inner side of the outer lower magnetic conductive sleeve, an outer lower magnetic steel washer is positioned at the axial lower end of the outer lower trapezoidal spherical magnetic steel and the outer lower spherical surface down magnetic ring, an outer mounting sleeve locking nut is positioned at the axial lower ends of the outer lower magnetic conductive sleeve and the outer lower magnetic steel washer, an outer auxiliary magnetic steel, an outer upper magnetic conductive sleeve, an outer lower magnetic conductive sleeve, an outer magnetism isolating ring, the outer upper trapezoidal spherical magnetic steel, the outer lower trapezoidal spherical magnetic steel, the outer upper spherical surface down magnetic ring, the outer lower spherical, the outer mounting sleeve is mounted on the outer mounting sleeve through the thread fit between the outer mounting sleeve locking nut and the outer mounting sleeve, the outer assembly locking nut is positioned at the axial lower ends of the outer mounting sleeve and the outer mounting sleeve locking nut, the outer assembly locking nut is positioned at the radial inner side of the outer wall of the annular groove of the rotor turntable, the outer mounting sleeve, the outer auxiliary magnetic steel, the outer upper magnetic conductive sleeve, the outer lower magnetic conductive sleeve, the outer isolating magnetic ring, the outer upper trapezoidal spherical magnetic steel, the outer lower trapezoidal spherical magnetic steel, the outer upper spherical paramagnetic ring, the outer lower spherical paramagnetic ring, the outer upper magnetic steel gasket, the outer lower magnetic steel gasket and the outer mounting sleeve locking nut are positioned at the radial inner side of the outer wall of the annular groove of the rotor turntable, and the inner mounting sleeve is mounted on the rotor turntable through the thread fit between the outer assembly locking nut and the annular groove of the rotor turntable, and the inner mounting sleeve is positioned on the inner auxiliary magnetic steel, the inner upper magnetic conductive sleeve, the inner lower, The inner upper trapezoidal spherical magnetic steel, the inner upper spherical paramagnetic ring and the inner upper trapezoidal spherical magnetic steel are respectively positioned at the axial upper end and the axial lower end of the inner isolation magnetic ring, the inner lower trapezoidal spherical magnetic steel and the inner lower trapezoidal spherical magnetic steel are respectively positioned at the axial upper end and the axial lower end of the inner isolation magnetic ring, the inner upper trapezoidal spherical magnetic steel and the inner lower trapezoidal spherical magnetic steel are respectively positioned at the axial upper end and the axial lower end of the inner isolation magnetic ring, the inner upper spherical clockwise magnetic ring and the inner lower spherical clockwise magnetic ring are respectively positioned at the radial outer sides of the inner upper trapezoidal spherical magnetic steel and the inner lower trapezoidal spherical magnetic steel, the inner upper magnetic steel washer is positioned at the radial outer side of the inner upper magnetic conductive sleeve, the inner upper magnetic steel washer is positioned at the axial upper end of the inner upper trapezoidal spherical magnetic steel and the inner upper spherical clockwise magnetic ring, the inner lower magnetic steel washer is positioned at the radial outer side of the inner lower magnetic conductive sleeve, the inner lower magnetic steel washer is positioned at the axial lower end of the inner lower trapezoidal spherical magnetic steel and the inner lower spherical clockwise magnetic ring, the inner mounting sleeve lock nut is positioned at the radial outer side of the inner mounting sleeve, the inner mounting sleeve lock nut is positioned at the axial lower end of the inner lower magnetic conductive sleeve and the inner lower magnetic steel washer, the inner auxiliary magnetic steel, the inner upper magnetic conductive sleeve, the inner lower magnetic conductive sleeve, the inner partition magnetic ring, the inner upper trapezoidal spherical magnetic steel, the inner lower trapezoidal spherical magnetic steel, the inner upper spherical clockwise magnetic ring, the inner mounting sleeve is mounted on the inner mounting sleeve through the thread fit between the inner mounting sleeve locking nut and the inner mounting sleeve, the inner assembly locking nut is positioned on the radial outer side of the rotor turntable, the inner assembly locking nut is positioned at the axial lower end of the inner mounting sleeve and the inner mounting sleeve locking nut, the inner mounting sleeve, the inner auxiliary magnetic steel, the inner upper magnetic sleeve, the inner lower magnetic sleeve, the inner magnetic isolating ring, the inner upper trapezoidal spherical magnetic steel, the inner lower trapezoidal spherical magnetic steel, the inner upper spherical paramagnetic ring, the inner lower spherical paramagnetic ring, the inner upper magnetic steel gasket, the inner lower magnetic steel gasket and the inner mounting sleeve locking nut are positioned on the radial outer side of the inner wall of the annular groove of the rotor turntable, the stator framework is positioned on the outer magnetic isolating ring, the outer upper trapezoidal spherical magnetic steel, the outer lower trapezoidal spherical magnetic steel, the outer upper spherical paramagnetic ring, the outer lower spherical paramagnetic ring, the outer upper magnetic steel gasket, the outer lower magnetic steel gasket, The stator framework is positioned at the radial outer side of the inner partition magnetic ring, the inner upper trapezoidal spherical magnetic steel, the inner lower trapezoidal spherical magnetic steel, the inner upper spherical forward magnetic ring, the inner lower spherical forward magnetic ring, the inner upper magnetic steel washer, the inner lower magnetic steel washer, the inner installation sleeve locking nut and the inner component locking nut, and is provided with a left boss, a right boss, a front boss and a rear boss. An outer auxiliary air gap is formed between the radial inner side of the outer auxiliary magnetic steel, the axial lower end of the outer upper magnetic conduction sleeve and the axial upper end of the outer lower magnetic conduction sleeve, and an inner auxiliary air gap is formed between the radial outer side of the inner auxiliary magnetic steel, the axial lower end of the inner upper magnetic conduction sleeve and the axial upper end of the inner lower magnetic conduction sleeve.

The axial length of the outer auxiliary air gap and the inner auxiliary air gap is about 1/4 of the outer auxiliary magnetic steel and the inner auxiliary magnetic steel, and the radial width of the outer auxiliary magnetic steel and the inner auxiliary magnetic steel is about 2/3. The radius of the outer spherical surface of the stator framework is smaller than the inner diameters of the outer lower magnetic steel gasket, the outer mounting sleeve locking nut and the outer assembly locking nut, and the minimum inner diameter of the stator framework is larger than the outer diameter of the inner magnetic isolation ring. The outer auxiliary magnetic steel, the outer upper trapezoidal spherical magnetic steel, the outer lower trapezoidal spherical magnetic steel, the inner auxiliary magnetic steel, the inner upper trapezoidal spherical magnetic steel and the inner lower trapezoidal spherical magnetic steel are made of neodymium iron boron alloy or cobalt alloy hard magnetic materials; the auxiliary magnetic steel is axially magnetized, the trapezoidal spherical magnetic steel is spherically and centripetally magnetized, and the magnetizing directions are as follows: the upper end of the outer auxiliary magnetic steel is connected with the upper end of the inner trapezoidal spherical magnetic steel, the lower end of the inner trapezoidal spherical magnetic steel is connected with the upper end of the inner trapezoidal spherical magnetic steel, and the upper end of the inner trapezoidal spherical magnetic steel is connected with the lower end of the inner trapezoidal spherical magnetic steel. Or the following steps: the upper S and the lower N of the outer auxiliary magnetic steel, the upper N and the lower S of the inner auxiliary magnetic steel, the inner S and the outer N of the outer upper trapezoidal spherical magnetic steel, the inner S and the outer N of the outer lower trapezoidal spherical magnetic steel, the inner N and the outer S of the inner upper trapezoidal spherical magnetic steel and the inner N and the outer S of the inner lower trapezoidal spherical magnetic steel. The outer mounting sleeve, the outer magnetism isolating ring, the outer upper magnetic steel gasket, the outer lower magnetic steel gasket, the outer mounting sleeve lock nut, the outer assembly lock nut, the inner mounting sleeve, the inner magnetism isolating ring, the inner upper magnetic steel gasket, the inner lower magnetic steel gasket, the inner mounting sleeve lock nut and the inner assembly lock nut are all made of hard aluminum alloy or super hard aluminum alloy 7A09 bar materials with good heat conducting property. The outer upper magnetic conductive sleeve, the outer lower magnetic conductive sleeve, the outer upper spherical surface magnetic smoothing ring, the outer lower spherical surface magnetic smoothing ring, the inner upper magnetic conductive sleeve, the inner lower magnetic conductive sleeve, the inner upper spherical surface magnetic smoothing ring and the inner lower spherical surface magnetic smoothing ring are all made of 1J50 or 1J22 bar materials. The stator framework is made of high-temperature-resistant and high-strength polyimide material. The curing environment of the epoxy resin adhesive is a normal-temperature vacuum environment, and the curing time is preferably not less than 72 hours.

The principle of the scheme is as follows: according to the high-rigidity spherical Lorentz deflection bearing with the auxiliary air gaps, double-ring auxiliary magnetic steel and four-ring main magnetic steel are connected in series in a magnetic circuit, two auxiliary air gaps are additionally arranged beside the double-ring auxiliary magnetic steel, so that most of magnetic flux of the main magnetic circuit penetrates through the auxiliary air gaps to form a circuit, the six-ring magnetic steel generates larger air gap flux density at the air gaps, and two groups of electrified windings arranged at the air gaps generate ampere forces with equal magnitude and opposite directions, so that the large-torque deflection of the Lorentz bearing is realized. Four main magnetic paths generated by four main magnetic steels of the invention are arranged in the + X channel and are respectively a main magnetic path 1, a main magnetic path 2, a main magnetic path 3 and a main magnetic path 4. Wherein the main magnetic circuit 1 is: magnetic flux generated by the outer upper trapezoidal spherical magnetic steel is emitted by an N pole, passes through the outer upper spherical paramagnetic ring, the upper end of the air gap and the inner upper spherical paramagnetic ring, reaches an S pole of the inner upper trapezoidal spherical magnetic steel, flows out from an N pole of the inner upper trapezoidal spherical magnetic steel, passes through the inner upper flux sleeve, the inner auxiliary air gap and the inner lower flux sleeve, reaches an S pole of the inner lower trapezoidal spherical magnetic steel, flows out from an N pole of the inner lower trapezoidal spherical magnetic steel, passes through the inner lower spherical paramagnetic ring, the lower end of the air gap and the outer lower spherical paramagnetic ring, reaches an S pole of the outer lower trapezoidal spherical magnetic steel, flows out from an N pole of the outer lower trapezoidal spherical magnetic steel, passes through the outer lower flux sleeve, the outer auxiliary air gap and the outer upper flux sleeve, and returns to the S pole of the outer upper trapezoidal spherical magnetic steel; the main magnetic path 2 is: magnetic flux generated by the outer upper trapezoidal spherical magnetic steel is emitted by an N pole, passes through the outer upper spherical paramagnetic ring, the upper end of the air gap and the inner upper spherical paramagnetic ring, reaches an S pole of the inner upper trapezoidal spherical magnetic steel, flows out from an N pole of the inner upper trapezoidal spherical magnetic steel, passes through the inner upper magnetic sleeve, the inner auxiliary air gap and the inner lower magnetic sleeve, reaches an S pole of the inner lower trapezoidal spherical magnetic steel, flows out from an N pole of the inner lower trapezoidal spherical magnetic steel, passes through the inner lower spherical paramagnetic ring, the lower end of the air gap and the outer lower spherical paramagnetic ring, reaches an S pole of the outer lower trapezoidal spherical magnetic steel, flows out from an N pole of the outer lower trapezoidal spherical magnetic steel, passes through the outer lower magnetic sleeve, the outer auxiliary magnetic steel and the outer upper magnetic sleeve, and returns to the S pole of the outer upper trapezoidal spherical magnetic steel; the main magnetic path 3 is: magnetic flux generated by the outer upper trapezoidal spherical magnetic steel is emitted by an N pole, passes through the outer upper spherical paramagnetic ring, the upper end of the air gap and the inner upper spherical paramagnetic ring, reaches an S pole of the inner upper trapezoidal spherical magnetic steel, flows out from an N pole of the inner upper trapezoidal spherical magnetic steel, passes through the inner upper flux sleeve, the inner auxiliary magnetic steel and the inner lower flux sleeve, reaches an S pole of the inner lower trapezoidal spherical magnetic steel, flows out from an N pole of the inner lower trapezoidal spherical magnetic steel, passes through the inner lower spherical paramagnetic ring, the lower end of the air gap and the outer lower spherical paramagnetic ring, reaches an S pole of the outer lower trapezoidal spherical magnetic steel, flows out from an N pole of the outer lower trapezoidal spherical magnetic steel, passes through the outer lower flux sleeve, the outer auxiliary air gap and the outer upper flux sleeve, and returns to the S pole of the outer upper trapezoidal spherical magnetic steel; the main magnetic path 4 is: magnetic flux generated by the outer upper trapezoidal spherical magnetic steel is emitted by an N pole, passes through the outer upper spherical paramagnetic ring, the upper end of the air gap and the inner upper spherical paramagnetic ring, reaches an S pole of the inner upper trapezoidal spherical magnetic steel, flows out from the N pole of the outer upper trapezoidal spherical magnetic steel, passes through the inner upper magnetic sleeve, the inner auxiliary magnetic steel and the inner lower magnetic sleeve, reaches an S pole of the inner lower trapezoidal spherical magnetic steel, flows out from the N pole of the inner lower trapezoidal spherical magnetic steel, passes through the inner lower spherical paramagnetic ring, the lower end of the air gap and the outer lower spherical paramagnetic ring, reaches the S pole of the outer lower trapezoidal spherical magnetic steel, flows out from the N pole of the outer lower trapezoidal spherical magnetic steel, passes through the outer lower magnetic sleeve, the outer auxiliary magnetic steel and the outer upper magnetic sleeve, and returns to the S pole of the outer upper trapezoidal spherical magnetic steel; the main magnetic paths of the-X, + Y, and-Y channels are similar thereto. The auxiliary magnetic circuit generated by the + X channel auxiliary magnetic steel can be divided into an auxiliary magnetic circuit 1, an auxiliary magnetic circuit 2, an outer auxiliary magnetic circuit 3, an auxiliary magnetic circuit 4 and an auxiliary magnetic circuit 5. The auxiliary magnetic circuit 1 is: the magnetic flux generated by the outer auxiliary magnetic steel starts from an N pole and sequentially passes through the outer upper magnetic conductive sleeve, the outer upper trapezoidal spherical magnetic steel, the outer upper spherical cis-magnetic ring, the upper end of the air gap, the inner upper spherical cis-magnetic ring, the inner upper trapezoidal spherical magnetic steel, the inner upper magnetic conductive sleeve, the inner auxiliary air gap, the inner lower magnetic conductive sleeve, the inner lower trapezoidal spherical magnetic steel, the inner lower spherical cis-magnetic ring, the lower end of the air gap, the outer lower spherical cis-magnetic ring, the outer lower trapezoidal spherical magnetic steel and the outer lower magnetic conductive sleeve to return to the S pole of the outer auxiliary magnetic steel; the auxiliary magnetic circuit 2 is: the outer auxiliary magnetic steel generates magnetic flux which starts from an N pole, sequentially passes through the outer upper magnetic sleeve, the outer auxiliary air gap and the outer lower magnetic sleeve and returns to an S pole of the outer auxiliary magnetic steel; the auxiliary magnetic circuit 3 is: the magnetic flux generated by the inner auxiliary magnetic steel starts from an N pole and sequentially passes through the inner lower magnetic conductive sleeve, the inner lower trapezoidal spherical magnetic steel, the inner lower spherical paramagnetic ring, the air gap lower end, the outer lower spherical paramagnetic ring, the outer lower trapezoidal spherical magnetic steel, the outer lower magnetic conductive sleeve, the outer auxiliary air gap, the outer upper magnetic conductive sleeve, the outer upper trapezoidal spherical magnetic steel, the outer upper spherical paramagnetic ring, the air gap upper end, the inner upper spherical paramagnetic ring, the inner upper trapezoidal spherical magnetic steel and the inner upper magnetic conductive sleeve to return to an S pole of the inner auxiliary magnetic steel; the auxiliary magnetic circuit 4 is: the inner auxiliary magnetic steel generates magnetic flux which starts from an N pole, sequentially passes through the inner upper magnetic sleeve, the inner auxiliary air gap and the inner lower magnetic sleeve and returns to an S pole of the inner auxiliary magnetic steel; the auxiliary magnetic circuit 5 is: the magnetic flux generated by the outer auxiliary magnetic steel starts from the N pole, sequentially passes through the outer upper magnetic conductive sleeve, the outer upper trapezoidal spherical magnetic steel, the outer upper spherical paramagnetic ring, the air gap upper end, the inner upper spherical paramagnetic ring, the inner upper trapezoidal spherical magnetic steel and the inner upper magnetic conductive sleeve, reaches the S pole of the inner auxiliary magnetic steel, flows out from the N pole of the inner auxiliary magnetic steel, passes through the inner lower magnetic conductive sleeve, the inner lower trapezoidal spherical magnetic steel, the inner lower spherical paramagnetic ring, the air gap lower end, the outer lower spherical paramagnetic ring, the outer lower trapezoidal spherical magnetic steel and the outer lower magnetic conductive sleeve, and returns to the S pole of the outer auxiliary magnetic steel. the-X, + Y, and-Y channel secondary magnetic circuits are similar. In summary, seven fluxes, including the main magnetic path 1 flux, the main magnetic path 2 flux, the main magnetic path 3 flux, the main magnetic path 4 flux, the auxiliary magnetic path 1 flux, the auxiliary magnetic path 3 flux, and the auxiliary magnetic path 5 flux, pass through the air gap to be effective flux, and the auxiliary magnetic path 2 flux and the auxiliary magnetic path 4 flux do not pass through the air gap to be ineffective flux. The total air gap flux is the sum of seven fluxes, namely, the main magnetic path 1 flux, the main magnetic path 2 flux, the main magnetic path 3 flux, the main magnetic path 4 flux, the auxiliary magnetic path 1 flux, the auxiliary magnetic path 3 flux and the auxiliary magnetic path 5 flux.

Compared with the prior art, the invention has the advantages that: compared with the existing single-side and double-side magnetic steel configuration, the high-rigidity spherical Lorentz deflection bearing with the auxiliary air gap has the advantages that the number of the magnetic steels connected in series in the magnetic circuit is increased to six circles by additionally arranging two circles of axially magnetized auxiliary magnetic steels, so that the magnetomotive force in the magnetic circuit is increased, and the suspension rigidity of the bearing is improved. Compared with the existing Lorentz bearing with the structure that the auxiliary magnetic steel is embedded in the double-side magnetic steel, the two auxiliary air gaps are adopted, so that most of the magnetic flux of the main magnetic circuit penetrates through the auxiliary air gaps to form a loop, the magnetic flux of the main magnetic circuit is prevented from penetrating through the auxiliary magnetic steel, the magnetic resistance of the magnetic circuit is reduced, the utilization rate of magnetomotive force of the four-coil main magnetic steel is improved, and the air gap magnetic density and the suspension rigidity are increased. The high-rigidity spherical Lorentz deflection bearing with the auxiliary air gap accurately controls two-degree-of-freedom deflection through the Lorentz force, outputs high-precision large torque and can be used for high-dynamic control of a Lorentz stable suspension platform.

Drawings

Figure 1 is a radial cross-section of the technical solution of the present invention;

FIG. 2a is a schematic diagram of the + X channel main magnetic circuit 1 according to the solution of the present invention;

FIG. 2b is a schematic diagram of the + X channel main magnetic circuit 2 according to the solution of the present invention;

FIG. 2c is a schematic diagram of the + X channel main magnetic circuit 3 according to the solution of the present invention;

FIG. 2d is a schematic diagram of the + X channel main magnetic circuit 4 according to the solution of the present invention;

fig. 3a is a schematic view of a + X channel secondary magnetic circuit 1 of the technical solution of the present invention;

fig. 3b is a schematic view of the + X channel secondary magnetic circuit 2 of the technical solution of the present invention;

fig. 3c is a schematic view of the + X channel auxiliary magnetic circuit 3 of the technical solution of the present invention;

fig. 3d is a schematic view of the + X channel secondary magnetic circuit 4 of the technical solution of the present invention;

fig. 3e is a schematic view of the + X channel secondary magnetic circuit 5 of the technical solution of the present invention;

FIG. 4 is a cross-sectional view of an outer rotor system in accordance with the present inventive technique;

fig. 5 is a sectional view of an inner rotor system according to the technical solution of the present invention;

fig. 6 is a sectional view of a stator system of the technical solution of the present invention;

fig. 7 is a schematic three-dimensional structure of a stator frame according to the technical solution of the present invention;

fig. 8 is a diagram of a magnetic circuit simulation of the technical solution of the present invention.

Detailed Description

Other advantages and effects of the present invention will become readily apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses exemplary embodiments of the present invention, and to fig. 1-8. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention.

As shown in fig. 1, the technical solution of the present invention is: a high rigidity spherical Lorentz deflection bearing with an auxiliary air gap comprises a rotor system and a stator system, wherein the rotor system mainly comprises: an outer mounting sleeve 1, an outer auxiliary magnetic steel 2, an outer upper magnetic sleeve 3A, an outer lower magnetic sleeve 3B, an outer magnetism isolating ring 4, an outer upper trapezoidal spherical magnetic steel 5A, an outer lower trapezoidal spherical magnetic steel 5B, an outer upper spherical paramagnetic ring 6A, an outer lower spherical paramagnetic ring 6B, an outer upper magnetic steel washer 7A, an outer lower magnetic steel washer 7B, an outer mounting sleeve lock nut 8, an outer assembly lock nut 9, a rotor turntable 10, an inner mounting sleeve 11, an inner auxiliary magnetic steel 12, an inner upper magnetic sleeve 13A, an inner lower magnetic sleeve 13B, an inner magnetism isolating ring 14, an inner upper trapezoidal spherical magnetic steel 15A, an inner lower trapezoidal spherical magnetic steel 15B, an inner upper spherical paramagnetic ring 16A, an inner lower spherical paramagnetic ring 16B, an inner upper magnetic steel washer 17A, an inner lower magnetic steel washer 17B, an inner mounting sleeve lock nut 18 and an inner assembly lock nut 19; the stator system mainly includes: the stator comprises a stator framework 20, a left winding 21A, a right winding 21B, a front winding 21C, a rear winding 21D and epoxy resin glue 22; the outer mounting sleeve 1 is positioned at the radial outer side of the outer auxiliary magnetic steel 2, the outer upper magnetic sleeve 3A, the outer lower magnetic sleeve 3B, the outer magnetism isolating ring 4, the outer upper trapezoidal spherical magnetic steel 5A, the outer lower trapezoidal spherical magnetic steel 5B, the outer upper spherical paramagnetic ring 6A, the outer lower spherical paramagnetic ring 6B, the outer upper magnetic steel washer 7A, the outer lower magnetic steel washer 7B and the outer mounting sleeve locking nut 8, the outer auxiliary magnetic steel 2 is positioned at the radial inner side center position of the outer mounting sleeve 1, the outer upper magnetic sleeve 3A and the outer lower magnetic sleeve 3B are respectively positioned at the axial upper end and the axial lower end of the outer auxiliary magnetic steel 2, the outer magnetism isolating ring 4 is positioned at the radial inner side center position of the outer auxiliary magnetic steel 2, the outer upper trapezoidal spherical magnetic steel 5A, the outer upper spherical paramagnetic ring 6A and the outer upper magnetic steel washer 7A are positioned at the radial inner side of the outer upper magnetic sleeve 3A and the axial upper end of the outer magnetic sleeve 4, the outer lower trapezoidal spherical magnetic steel 5B, the outer lower trapezoidal spherical paramagnetic ring 6B and the outer lower magnetic, and the axial lower end of the outer magnetism isolating ring 4, the outer upper trapezoidal spherical magnetic steel 5A and the outer lower trapezoidal spherical magnetic steel 5B are respectively positioned at the axial upper end and the axial lower end of the outer magnetism isolating ring 4, the outer upper spherical cis-magnetic ring 6A and the outer lower spherical cis-magnetic ring 6B are respectively positioned at the radial inner sides of the outer upper trapezoidal spherical magnetic steel 5A and the outer lower trapezoidal spherical magnetic steel 5B, the outer upper magnetic steel washer 7A is positioned at the radial inner side of the outer upper magnetism conducting sleeve 3A, the outer upper magnetic steel washer 7A is positioned at the axial upper end of the outer upper trapezoidal spherical magnetic steel 5A and the outer upper spherical cis-magnetic ring 6A, the outer lower magnetic steel washer 7B is positioned at the radial inner side of the outer lower magnetism conducting sleeve 3B, the outer lower magnetic steel washer, an outer mounting sleeve lock nut 8 is positioned at the axial lower end of an outer lower magnetic conductive sleeve 3B and an outer lower magnetic steel washer 7B, an outer auxiliary magnetic steel 2, an outer upper magnetic conductive sleeve 3A, an outer lower magnetic conductive sleeve 3B, an outer magnetism isolating ring 4, an outer upper trapezoidal spherical magnetic steel 5A, an outer lower trapezoidal spherical magnetic steel 5B, an outer upper spherical magnetism guiding ring 6A, an outer lower spherical magnetism guiding ring 6B, an outer upper magnetic steel washer 7A and an outer lower magnetic steel washer 7B are positioned at the radial inner side of an outer mounting sleeve 1 and are mounted on the outer mounting sleeve 1 through thread matching between the outer mounting sleeve lock nut 8 and the outer mounting sleeve 1, an outer assembly lock nut 9 is positioned at the axial lower end of the outer mounting sleeve 1 and the outer mounting sleeve lock nut 8, the outer assembly lock nut 9 is positioned at the radial inner side of the outer wall of an annular groove of a rotor turntable 10, the outer mounting sleeve 1, the outer auxiliary magnetic steel 2, the outer upper trapezoidal spherical magnetic steel 5A, the outer lower magnetic conductive sleeve 3B, the, An outer lower trapezoidal spherical magnetic steel 5B, an outer upper spherical clockwise magnetic ring 6A, an outer lower spherical clockwise magnetic ring 6B, an outer upper magnetic steel washer 7A, an outer lower magnetic steel washer 7B and an outer mounting sleeve locking nut 8 are positioned on the radial inner side of the outer wall of the annular groove of the rotor turntable 10 and are mounted on the rotor turntable 10 through thread matching between an outer assembly locking nut 9 and the annular groove of the rotor turntable 10, an inner mounting sleeve 11 is positioned on the radial inner side of an inner auxiliary magnetic steel 12, an inner upper magnetic conductive sleeve 13A, an inner lower magnetic conductive sleeve 13B, an inner partition magnetic ring 14, an inner upper trapezoidal spherical magnetic steel 15A, an inner lower trapezoidal spherical magnetic steel 15B, an inner upper spherical clockwise magnetic ring 16A, an inner lower spherical clockwise magnetic ring 16B, an inner upper magnetic steel washer 17A, an inner lower magnetic steel washer 17B and an inner mounting sleeve locking nut 18, the inner auxiliary magnetic steel 12 is positioned on the radial outer side center position of the inner mounting sleeve 11, the inner upper magnetic conductive sleeve 13A and the inner lower magnetic sleeve 13B are respectively, the inner magnetic isolating ring 14 is located at the center position of the radial outer side of the inner auxiliary magnetic steel 12, the inner upper trapezoidal spherical magnetic steel 15A, the inner upper spherical paramagnetic ring 16A and the inner upper magnetic steel washer 17A are located at the radial outer side of the inner upper magnetic conducting sleeve 13A and the axial upper end of the inner magnetic isolating ring 14, the inner lower trapezoidal spherical magnetic steel 15B, the inner lower spherical paramagnetic ring 16B and the inner lower magnetic steel washer 17B are located at the radial outer side of the inner lower magnetic conducting sleeve 13B and the axial lower end of the inner magnetic isolating ring 14, the inner upper trapezoidal spherical magnetic steel 15A and the inner lower trapezoidal spherical magnetic steel 15B are respectively located at the axial upper end and the axial lower end of the inner magnetic isolating ring 14, the inner upper spherical paramagnetic ring 16A and the inner lower spherical paramagnetic ring 16B are respectively located at the radial outer side of the inner, an inner upper magnetic steel washer 17A is positioned at the radial outer side of the inner upper magnetic conductive sleeve 13A, the inner upper magnetic steel washer 17A is positioned at the axial upper end of an inner upper trapezoidal spherical magnetic steel 15A and an inner upper spherical paramagnetic ring 16A, an inner lower magnetic steel washer 17B is positioned at the radial outer side of the inner lower magnetic conductive sleeve 13B, the inner lower magnetic steel washer 17B is positioned at the axial lower end of an inner lower trapezoidal spherical magnetic steel 15B and an inner lower spherical paramagnetic ring 16B, an inner mounting sleeve locking nut 18 is positioned at the radial outer side of the inner mounting sleeve 11, the inner mounting sleeve locking nut 18 is positioned at the axial lower end of the inner lower magnetic conductive sleeve 13B and the inner lower magnetic steel washer 17B, an inner auxiliary magnetic steel 12, an inner upper magnetic conductive sleeve 13A, an inner lower magnetic conductive sleeve 13B, an inner partition magnetic ring 14, an inner upper trapezoidal spherical magnetic steel 15A, an inner lower trapezoidal spherical magnetic steel 15B, an inner upper spherical magnetic ring 16A, an inner lower trapezoidal spherical magnetic ring 16B, an inner upper magnetic steel washer 17A and an inner lower magnetic, the inner mounting sleeve 11 is mounted on the inner mounting sleeve 11 through the thread fit between the inner mounting sleeve locking nut 18 and the inner mounting sleeve 11, the inner assembly locking nut 19 is positioned at the radial outer side of the rotor turntable 10, the inner assembly locking nut 19 is positioned at the axial lower end of the inner mounting sleeve 11 and the inner mounting sleeve locking nut 18, the inner mounting sleeve 11, the inner auxiliary magnetic steel 12, the inner upper magnetic conductive sleeve 13A, the inner lower magnetic conductive sleeve 13B, the inner magnetic isolating ring 14, the inner upper trapezoidal spherical magnetic steel 15A, the inner lower trapezoidal spherical magnetic steel 15B, the inner upper spherical paramagnetic ring 16A, the inner lower spherical paramagnetic ring 16B, the inner upper magnetic steel washer 17A, the inner lower magnetic steel washer 17B and the inner mounting sleeve locking nut 18 are positioned at the radial outer side of the inner wall of the annular groove of the rotor turntable 10 and are mounted on the rotor turntable 10 through the thread fit between the inner assembly locking nut 19 and the annular groove of the rotor turntable 10, the stator framework 20 is positioned at the outer magnetic isolating ring, The stator frame 20 is located at the radial inner side of the inner partition magnetic ring 14, the inner upper trapezoidal spherical magnetic steel 15A, the inner lower trapezoidal spherical magnetic steel 15B, the inner upper spherical magnetic steel 16A, the inner lower spherical magnetic ring 16B, the inner upper magnetic steel washer 17A, the inner lower spherical magnetic ring 17B, the inner mounting sleeve locking nut 18 and the inner component locking nut 19, and the stator frame 20 has left, right, front and rear bosses, and the left winding 21A, the right winding 21B, the front winding 21C and the rear winding 21D are respectively wound on the left, right, front and rear bosses of the stator frame 20 and are fixed by epoxy resin glue 22. An air gap 23 is formed between the radial inner sides of the outer magnetism isolating ring 4, the outer upper trapezoidal spherical magnetic steel 5A, the outer lower trapezoidal spherical magnetic steel 5B, the outer upper spherical clockwise magnetic ring 6A, the outer lower spherical clockwise magnetic ring 6B, the outer upper magnetic steel washer 7A, the outer lower magnetic steel washer 7B, the outer mounting sleeve lock nut 8 and the outer assembly lock nut 9 and the radial outer sides of the inner magnetism isolating ring 14, the inner upper trapezoidal spherical magnetic steel 15A, the inner lower trapezoidal spherical magnetic steel 15B, the inner upper spherical clockwise magnetic ring 16A, the inner lower spherical clockwise magnetic ring 16B, the inner upper magnetic steel washer 17A, the inner lower magnetic steel washer 17B, the inner mounting sleeve lock nut 18 and the inner assembly lock nut 19, an outer auxiliary air gap 24 is formed between the radial inner side of the outer auxiliary magnetic steel 2, the axial lower end of the outer upper magnetic sleeve 3A and the axial upper end of the outer lower magnetic sleeve 3B, and an inner auxiliary air gap 25 is formed between the radial outer side of the inner auxiliary magnetic steel 12, the axial lower end of the inner upper magnetic sleeve 13A and the axial upper end of the inner lower magnetic sleeve 13B.

Fig. 2a is a schematic diagram of a main magnetic circuit 1 of the + X channel of the technical solution of the present invention, fig. 2b is a schematic diagram of a main magnetic circuit 2 of the + X channel of the technical solution of the present invention, fig. 2c is a schematic diagram of a main magnetic circuit 3 of the + X channel of the technical solution of the present invention, fig. 2d is a schematic diagram of a main magnetic circuit 4 of the + X channel of the technical solution of the present invention, as shown in fig. 2a, the main magnetic circuit 1 is: magnetic flux generated by the outer upper trapezoidal spherical magnetic steel 5A is emitted by an N pole, passes through the outer upper spherical paramagnetic ring 6A, the upper end of the air gap 23 and the inner upper spherical paramagnetic ring 16A, reaches the S pole of the inner upper trapezoidal spherical magnetic steel 15A, passes through the inner auxiliary air gap 25 via the inner upper magnetic sleeve 13A, enters the inner lower magnetic sleeve, reaches the S pole of the inner lower trapezoidal spherical magnetic steel 15B, flows out from the N pole of the inner lower trapezoidal spherical magnetic steel 15B, passes through the inner lower spherical paramagnetic ring 16B, the lower end of the air gap 23 and the outer lower spherical paramagnetic ring 6B, reaches the S pole of the outer lower trapezoidal spherical magnetic steel 5B, flows out from the N pole of the outer lower trapezoidal spherical magnetic steel 5B, passes through the outer lower magnetic sleeve 3B, the outer auxiliary air gap 24 and the outer upper magnetic sleeve 3A, and returns to the S pole of the outer upper trapezoidal spherical magnetic steel 5A; as shown in fig. 2b, the main magnetic circuit 2 is: magnetic flux generated by the outer upper trapezoidal spherical magnetic steel 5A is emitted by an N pole, passes through the outer upper spherical paramagnetic ring 6A, the upper end of the air gap 23 and the inner upper spherical paramagnetic ring 16A, reaches the S pole of the inner upper trapezoidal spherical magnetic steel 15A, passes through the inner auxiliary air gap 25 via the inner upper magnetic sleeve 13A, enters the inner lower magnetic sleeve, reaches the S pole of the inner lower trapezoidal spherical magnetic steel 15B, flows out from the N pole of the inner lower trapezoidal spherical magnetic steel 15B, passes through the inner lower spherical paramagnetic ring 16B, the lower end of the air gap 23 and the outer lower spherical paramagnetic ring 6B, reaches the S pole of the outer lower trapezoidal spherical magnetic steel 5B, flows out from the N pole of the outer lower trapezoidal spherical magnetic steel 5B, passes through the outer lower magnetic sleeve 3B, the outer auxiliary magnetic steel 2 and the outer upper magnetic sleeve 3A, and returns to the S pole of the outer upper trapezoidal spherical magnetic steel 5A; as shown in fig. 2c, the main magnetic circuit 3 is: magnetic flux generated by the outer upper trapezoidal spherical magnetic steel 5A is emitted by an N pole, passes through the outer upper spherical paramagnetic ring 6A, the upper end of the air gap 23 and the inner upper spherical paramagnetic ring 16A, reaches the S pole of the inner upper trapezoidal spherical magnetic steel 15A, passes through the inner auxiliary magnetic steel 12 via the inner upper magnetic conductive sleeve 13A, enters the inner lower magnetic conductive sleeve, reaches the S pole of the inner lower trapezoidal spherical magnetic steel 15B, flows out from the N pole of the inner lower trapezoidal spherical magnetic steel 15B, passes through the inner lower spherical paramagnetic ring 16B, the lower end of the air gap 23 and the outer lower spherical paramagnetic ring 6B, reaches the S pole of the outer lower trapezoidal spherical magnetic steel 5B, flows out from the N pole of the outer lower trapezoidal spherical magnetic steel 5B, passes through the outer lower magnetic conductive sleeve 3B, the outer auxiliary air gap 24 and the outer upper magnetic conductive sleeve 3A, and returns to the S pole of the outer upper trapezoidal spherical magnetic steel 5A; as shown in fig. 2d, the main magnetic circuit 4 is: the magnetic flux generated by the outer upper trapezoidal spherical magnetic steel 5A is emitted by the N pole, passes through the outer upper spherical paramagnetic ring 6A, the upper end of the air gap 23 and the inner upper spherical paramagnetic ring 16A, reaches the S pole of the inner upper trapezoidal spherical magnetic steel 15A, passes through the inner auxiliary magnetic steel 12 via the inner upper magnetic conductive sleeve 13A, enters the inner lower magnetic conductive sleeve, reaches the S pole of the inner lower trapezoidal spherical magnetic steel 15B, flows out from the N pole of the inner lower trapezoidal spherical magnetic steel 15B, passes through the inner lower spherical paramagnetic ring 16B, the lower end of the air gap 23 and the outer lower spherical paramagnetic ring 6B, reaches the S pole of the outer lower trapezoidal spherical magnetic steel 5B, flows out from the N pole of the outer lower trapezoidal spherical magnetic steel 5B, passes through the outer lower magnetic conductive sleeve 3B, the outer auxiliary magnetic steel 2 and the outer upper magnetic conductive sleeve 3A, and returns to the S pole of the outer upper trapezoidal spherical magnetic steel 5A.

Fig. 3a is a schematic diagram of a + X channel auxiliary magnetic circuit 1 of the technical solution of the present invention, fig. 3b is a schematic diagram of a + X channel auxiliary magnetic circuit 2 of the technical solution of the present invention, fig. 3c is a schematic diagram of a + X channel auxiliary magnetic circuit 3 of the technical solution of the present invention, fig. 3d is a schematic diagram of a + X channel auxiliary magnetic circuit 4 of the technical solution of the present invention, fig. 3e is a schematic diagram of a + X channel auxiliary magnetic circuit 5 of the technical solution of the present invention, as shown in fig. 3a, an auxiliary magnetic circuit 1 is: the magnetic flux generated by the auxiliary magnetic steel 2 starts from the N pole, sequentially passes through the outer upper magnetic conductive sleeve 3A, the outer upper trapezoidal spherical magnetic steel 5A, the outer upper spherical paramagnetic ring 6A, the upper end of the air gap 23, the inner upper spherical paramagnetic ring 16A, the inner upper trapezoidal spherical magnetic steel 15A, the inner upper magnetic conductive sleeve 13A, the inner auxiliary air gap 25, the inner lower magnetic conductive sleeve 13B, the inner lower trapezoidal spherical magnetic steel 15B, the inner lower spherical paramagnetic ring 16B, the lower end of the air gap 23, the outer lower spherical paramagnetic ring 6B, the outer lower trapezoidal spherical magnetic steel 5B and the outer lower magnetic conductive sleeve 3B, and returns to the S pole of the outer auxiliary magnetic steel 2; as shown in fig. 3b, the secondary magnetic circuit 2 is: the outer auxiliary magnetic steel 2 generates magnetic flux which starts from an N pole, sequentially passes through the outer upper magnetic sleeve 3A, the outer auxiliary air gap 24 and the outer lower magnetic sleeve 3B and returns to an S pole of the outer auxiliary magnetic steel 2; as shown in fig. 3c, the secondary magnetic circuit 3 is: the magnetic flux generated by the inner auxiliary magnetic steel 12 starts from the N pole, sequentially passes through the inner lower magnetic conductive sleeve 13B, the inner lower trapezoidal spherical magnetic steel 15B, the inner lower spherical paramagnetic ring 16B, the lower end of the air gap 23, the outer lower spherical paramagnetic ring 6B, the outer lower trapezoidal spherical magnetic steel 5B, the outer lower magnetic conductive sleeve 3B, the outer auxiliary air gap 24, the outer upper magnetic conductive sleeve 3A, the outer upper trapezoidal spherical magnetic steel 5A, the outer upper spherical paramagnetic ring 6A, the upper end of the air gap 23, the inner upper spherical paramagnetic ring 16A, the inner upper trapezoidal spherical magnetic steel 15A and the inner upper magnetic conductive sleeve 13A, and returns to the S pole of the inner auxiliary magnetic steel 12; as shown in fig. 3d, the secondary magnetic circuit 4 is: the inner auxiliary magnetic steel 12 generates magnetic flux which starts from an N pole, sequentially passes through the inner upper magnetic sleeve 13A, the inner auxiliary air gap 25 and the inner lower magnetic sleeve 13B, and returns to an S pole of the inner auxiliary magnetic steel 12; as shown in fig. 3e, the secondary magnetic circuit 5 is: the magnetic flux generated by the outer auxiliary magnetic steel 2 starts from the N pole, sequentially passes through the outer upper flux guide sleeve 3A, the outer upper trapezoidal spherical magnetic steel 5A, the outer upper spherical paramagnetic ring 6A, the upper end of the air gap 23, the inner upper spherical paramagnetic ring 16A, the inner upper trapezoidal spherical magnetic steel 15A and the inner upper flux guide sleeve 13A, reaches the S pole of the inner auxiliary magnetic steel 12, flows out from the N pole of the inner auxiliary magnetic steel 12, passes through the inner lower flux guide sleeve 13B, the inner lower trapezoidal spherical magnetic steel 15B, the inner lower spherical paramagnetic ring 16B, the lower end of the air gap 23, the outer lower spherical paramagnetic ring 6B, the outer lower trapezoidal spherical magnetic steel 5B and the outer lower flux guide sleeve 3B, and returns to the S pole of the outer auxiliary magnetic steel 2.

Fig. 4 is a sectional view of an outer rotor system according to the technical solution of the present invention, the outer rotor system mainly including: the magnetic flux shield comprises an outer mounting sleeve 1, outer auxiliary magnetic steel 2, an outer upper magnetic sleeve 3A, an outer lower magnetic sleeve 3B, an outer isolation magnetic ring 4, outer upper trapezoidal spherical magnetic steel 5A, outer lower trapezoidal spherical magnetic steel 5B, an outer upper spherical paramagnetic ring 6A, an outer lower spherical paramagnetic ring 6B, an outer upper magnetic steel washer 7A, an outer lower magnetic steel washer 7B and an outer mounting sleeve locking nut 8; the outer mounting sleeve 1 is positioned at the axial upper end of the outer auxiliary magnetic steel 2, the outer upper magnetic sleeve 3A, the outer lower magnetic sleeve 3B, the outer magnetism isolating ring 4, the outer upper trapezoidal spherical magnetic steel 5A, the outer lower trapezoidal spherical magnetic steel 5B, the outer upper spherical paramagnetic ring 6A, the outer lower spherical paramagnetic ring 6B, the outer upper magnetic steel washer 7A, the outer lower magnetic steel washer 7B and the outer mounting sleeve locking nut 8, the outer auxiliary magnetic steel 2 is positioned at the radial inner central position of the outer mounting sleeve 1, the outer upper magnetic sleeve 3A and the outer lower magnetic sleeve 3B are respectively positioned at the axial upper end and the axial lower end of the outer auxiliary magnetic steel 2, the outer magnetism isolating ring 4 is positioned at the radial inner central position of the outer auxiliary magnetic steel 2, the outer upper trapezoidal spherical magnetic steel 5A, the outer upper spherical paramagnetic ring 6A and the outer upper magnetic steel washer 7A are positioned at the axial upper end of the outer magnetism isolating ring 4, the outer lower trapezoidal spherical magnetic steel 5B, the outer lower spherical paramagnetic ring 6B and the outer lower magnetic steel washer 7, an outer upper trapezoidal spherical magnetic steel 5A and an outer lower trapezoidal spherical magnetic steel 5B are respectively positioned at the axial upper end and the axial lower end of the outer magnetism isolating ring 4, an outer upper spherical surface down magnetic ring 6A and an outer lower spherical surface down magnetic ring 6B are respectively positioned at the radial inner sides of the outer upper trapezoidal spherical magnetic steel 5A and the outer lower trapezoidal spherical magnetic steel 5B, an outer upper magnetic steel washer 7A is positioned at the axial upper end of the outer upper trapezoidal spherical magnetic steel 5A and the outer upper spherical surface down magnetic ring 6A, an outer lower magnetic steel washer 7B is positioned at the axial lower end of the outer lower trapezoidal spherical magnetic steel 5B and the outer lower spherical surface down magnetic ring 6B, an outer mounting sleeve locking nut 8 is positioned at the axial lower end of the outer lower magnetic sleeve 3B and the outer lower magnetic steel washer 7B, an outer auxiliary magnetic steel 2, an outer upper magnetic sleeve 3A, an outer lower magnetic sleeve 3B, an outer magnetism isolating ring 4, an outer upper trapezoidal spherical magnetic steel 5A, an outer lower trapezoidal spherical surface magnetic steel 5B, outer upper magnetic steel gasket 7A and outer lower magnetic steel gasket 7B are installed on outer installation sleeve 1 through the screw-thread fit between outer installation sleeve lock nut 8 and outer installation sleeve 1, and outer auxiliary air gap 24 is formed between the radial inner side of outer auxiliary magnetic steel 2, the axial lower end of outer upper magnetic sleeve 3A and the axial upper end of outer lower magnetic sleeve 3B, and the axial length of outer auxiliary air gap 24 is about 1/4 of outer auxiliary magnetic steel 2, and the radial width is about 2/3 of outer auxiliary magnetic steel 2. The outer auxiliary magnetic steel 2, the outer upper trapezoidal spherical magnetic steel 5A and the outer lower trapezoidal spherical magnetic steel 5B are made of neodymium iron boron alloy or cobalt alloy hard magnetic materials; the outer mounting sleeve 1, the outer magnetism isolating ring 4, the outer upper magnetic steel gasket 7A, the outer lower magnetic steel gasket 7B, the outer mounting sleeve lock nut 8 and the outer assembly lock nut 9 are all made of hard aluminum alloy 2A12 or super hard aluminum alloy 7A09 bar materials with good heat conducting property; the outer upper magnetic conductive sleeve 3A, the outer lower magnetic conductive sleeve 3B, the outer upper spherical surface paramagnetic ring 6A and the outer lower spherical surface paramagnetic ring 6B are all made of 1J50 or 1J22 bar materials.

Fig. 5 is a sectional view of an inner rotor system according to the technical solution of the present invention, the inner rotor system mainly includes: an inner mounting sleeve 11, an inner auxiliary magnetic steel 12, an inner upper magnetic sleeve 13A, an inner lower magnetic sleeve 13B, an inner isolation magnetic ring 14, an inner upper trapezoidal spherical magnetic steel 15A, an inner lower trapezoidal spherical magnetic steel 15B, an inner upper spherical paramagnetic ring 16A, an inner lower spherical paramagnetic ring 16B, an inner upper magnetic steel washer 17A, an inner lower magnetic steel washer 17B and an inner mounting sleeve locking nut 18; the inner mounting sleeve 11 is positioned at the axial lower end of the inner magnetic separating ring 14, the inner upper magnetic guiding sleeve 13A, the inner lower magnetic guiding sleeve 13B, the inner magnetic separating ring 14, the inner upper trapezoidal spherical magnetic steel 15A, the inner lower trapezoidal spherical magnetic steel 15B, the inner upper spherical paramagnetic ring 16A, the inner lower spherical paramagnetic ring 16B, the inner upper magnetic steel washer 17A, the inner lower magnetic steel washer 17B and the inner mounting sleeve locking nut 18, the inner auxiliary magnetic steel 12 is positioned at the radial outer central position of the inner mounting sleeve 11, the inner upper magnetic guiding sleeve 13A and the inner lower magnetic guiding sleeve 13B are respectively positioned at the axial upper end and the inner lower end of the inner auxiliary magnetic steel 12, the magnetic separating ring 14 is positioned at the radial outer central position of the inner auxiliary magnetic steel 12, the inner upper trapezoidal spherical magnetic steel 15A, the inner upper spherical paramagnetic ring 16A and the inner upper magnetic steel washer 17A are positioned at the axial upper end of the inner magnetic separating ring 14, the inner lower trapezoidal spherical magnetic steel 15B, the inner lower spherical paramagnetic ring 16B and the inner lower magnetic steel washer 17B, an inner upper trapezoidal spherical magnetic steel 15A and an inner lower trapezoidal spherical magnetic steel 15B are respectively located at the axial upper end and the axial lower end of the inner partition magnetic ring 14, an inner upper spherical paramagnetic ring 16A and an inner lower spherical paramagnetic ring 16B are respectively located at the radial outer sides of the inner upper trapezoidal spherical magnetic steel 15A and the inner lower trapezoidal spherical magnetic steel 15B, an inner upper magnetic steel washer 17A is located at the axial upper end of the inner upper trapezoidal spherical magnetic steel 15A and the inner upper spherical paramagnetic ring 16A, an inner lower magnetic steel washer 17B is located at the axial lower end of the inner lower trapezoidal spherical magnetic steel 15B and the inner lower spherical paramagnetic ring 16B, an inner mounting sleeve locking nut 18 is located at the axial lower end of the inner lower magnetic sleeve 13B and the inner lower magnetic steel washer 17B, an inner auxiliary magnetic steel 12, an inner upper magnetic sleeve 13A, an inner lower magnetic sleeve 13B, an inner partition magnetic ring 14, an inner upper trapezoidal spherical magnetic steel 15A, an inner lower trapezoidal spherical magnetic steel 15B, an inner upper spherical paramagnetic ring 16A, an inner lower trapezoidal, The inner upper magnetic steel gasket 17A and the inner lower magnetic steel gasket 17B are mounted on the inner mounting sleeve 11 through the thread fit between the inner mounting sleeve locking nut 18 and the inner mounting sleeve 11, an inner auxiliary air gap 25 is formed between the radial outer side of the inner auxiliary magnetic steel 12, the axial lower end of the inner upper magnetic conductive sleeve 13A and the axial upper end of the inner lower magnetic conductive sleeve 13B, the axial length of the inner auxiliary air gap 25 is about 1/4 of the inner auxiliary magnetic steel 12, and the radial width is about 2/3 of the inner auxiliary magnetic steel 11. The inner auxiliary magnetic steel 12, the inner upper trapezoidal spherical magnetic steel 15A and the inner lower trapezoidal spherical magnetic steel 15B are made of neodymium iron boron alloy or cobalt alloy hard magnetic materials; the inner mounting sleeve 11, the inner magnetic isolation ring 14, the inner upper magnetic steel gasket 17A, the inner lower magnetic steel gasket 17B, the inner mounting sleeve lock nut 18 and the inner assembly lock nut 19 are all made of hard aluminum alloy 2A12 or super hard aluminum alloy 7A09 bar materials with good heat conductivity; the inner upper magnetic conductive sleeve 13A, the inner lower magnetic conductive sleeve 13B, the inner upper spherical surface magnetic smoothing ring 16A and the inner lower spherical surface magnetic smoothing ring 16B are all made of 1J50 or 1J22 bar materials.

Fig. 6 is a sectional view of a stator system according to the technical solution of the present invention, the stator system mainly comprising: the stator comprises a stator framework 20, a left winding 21A, a right winding 21B, a front winding 21C, a rear winding 21D and epoxy resin glue 22; the left winding 21A, the right winding 21B, the front winding 21C and the rear winding 21D are respectively wound on the left boss, the right boss, the front boss and the rear boss of the stator framework 20 and are fixed through epoxy resin glue 22; the curing environment of the epoxy resin adhesive 22 is a normal-temperature vacuum environment, and the curing time is not less than 72 hours.

Fig. 7 is a schematic diagram of a three-dimensional structure of a stator frame according to the technical solution of the present invention, which is made of high temperature resistant and high strength polyimide, and the stator frame 20 has four left, right, front, and rear bosses for positioning and winding a left winding 21A, a right winding 21B, a front winding 21C, and a rear winding 21D, respectively.

Fig. 8 is a magnetic circuit simulation diagram of the technical solution of the present invention, because two auxiliary air gaps are added beside two circles of auxiliary magnetic steel, most of the magnetic flux of the main magnetic circuit passes through the auxiliary air gaps to form a loop, thereby improving the utilization rate of magnetomotive force of four circles of main magnetic steel, most of the magnetic flux of the auxiliary magnetic circuit generated by the two circles of auxiliary magnetic steel passes through the auxiliary air gaps at the opposite position to form a loop, improving the utilization rate of magnetomotive force of the two circles of auxiliary magnetic steel, and greatly improving the magnetic density of the air gaps under the combined action of the two auxiliary magnetic steel, thereby improving the.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A high stiffness spherical lorentz yaw bearing with an auxiliary air gap comprising a rotor system and a stator system, characterized in that: the rotor system includes: the magnetic rotor comprises an outer mounting sleeve (1), outer auxiliary magnetic steel (2), an outer upper magnetic sleeve (3A), an outer lower magnetic sleeve (3B), an outer magnetism isolating ring (4), outer upper trapezoidal spherical magnetic steel (5A), outer lower trapezoidal spherical magnetic steel (5B), an outer upper spherical surface smoothing magnetic ring (6A), an outer lower spherical surface smoothing magnetic ring (6B), an outer upper magnetic steel gasket (7A), an outer lower magnetic steel gasket (7B), an outer mounting sleeve locking nut (8), an outer assembly locking nut (9), a rotor turntable (10), an inner mounting sleeve (11), inner auxiliary magnetic steel (12), an inner upper magnetic sleeve (13A), an inner lower magnetic sleeve (13B), an inner magnetism isolating ring (14), inner upper trapezoidal spherical magnetic steel (15A), inner lower trapezoidal spherical magnetic steel (15B), inner upper spherical surface smoothing magnetic ring (16A), inner lower spherical surface smoothing magnetic ring (16B), inner upper magnetic steel gasket (17A), inner lower magnetic steel gasket (17B), An inner mounting sleeve lock nut (18) and an inner assembly lock nut (19); the stator system includes: the winding comprises a stator framework (20), a left winding (21A), a right winding (21B), a front winding (21C), a rear winding (21D) and epoxy resin glue (22); wherein, the outer mounting sleeve (1) is positioned at the radial inner side of the outer auxiliary magnetic steel (2), the outer upper magnetic conductive sleeve (3A), the outer lower magnetic conductive sleeve (3B), the outer magnetism isolating ring (4), the outer upper trapezoidal spherical magnetic steel (5A), the outer lower trapezoidal spherical magnetic steel (5B), the outer upper spherical cis-magnetic ring (6A), the outer lower spherical cis-magnetic ring (6B), the outer upper magnetic steel gasket (7A), the outer lower magnetic steel gasket (7B) and the outer mounting sleeve locking nut (8), the outer auxiliary magnetic steel (2) is positioned at the radial inner central position of the outer mounting sleeve (1), the outer upper magnetic conductive sleeve (3A) and the outer lower magnetic conductive sleeve (3B) are respectively positioned at the axial upper end and the axial lower end of the outer auxiliary magnetic steel (2), the outer magnetism isolating ring (4) is positioned at the radial inner central position of the outer auxiliary magnetic steel (2), the outer upper trapezoidal spherical magnetic steel (5A), the outer upper spherical cis-magnetic ring (6A) and the outer upper magnetic steel gasket (7A) are positioned at the radial inner side and the outer magnetism isolating ring ) The upper end of the outer upper trapezoidal spherical magnet (5A), the lower outer trapezoidal spherical magnet (6B) and the lower outer magnetic steel washer (7B) are positioned at the radial inner side of the lower outer magnetic sleeve (3B) and the axial lower end of the outer magnetism isolating ring (4), the upper outer trapezoidal spherical magnet (5A) and the lower outer trapezoidal spherical magnet (5B) are respectively positioned at the axial upper end and the axial lower end of the outer magnetism isolating ring (4), the upper outer spherical magnet (6A) and the lower outer spherical magnet (6B) are respectively positioned at the radial inner side of the upper outer trapezoidal spherical magnet (5A) and the lower outer trapezoidal spherical magnet (5B), the upper outer magnetic steel washer (7A) is positioned at the radial inner side of the upper outer magnetic sleeve (3A), and the upper outer magnetic steel washer (7A) is positioned at the upper outer trapezoidal spherical magnet (5A) and the upper outer magnetic ring (6A), an outer lower magnetic steel gasket (7B) is positioned at the radial inner side of the outer lower magnetic conductive sleeve (3B), the outer lower magnetic steel gasket (7B) is positioned at the axial lower ends of an outer lower trapezoidal spherical magnetic steel (5B) and an outer lower spherical surface paramagnetic ring (6B), an outer mounting sleeve lock nut (8) is positioned at the axial lower ends of the outer lower magnetic conductive sleeve (3B) and the outer lower magnetic steel gasket (7B), an outer auxiliary magnetic steel (2), an outer upper magnetic conductive sleeve (3A), the outer lower magnetic conductive sleeve (3B), an outer isolating magnetic ring (4), an outer upper trapezoidal spherical magnetic steel (5A), an outer lower trapezoidal spherical magnetic steel (5B), an outer upper spherical surface paramagnetic ring (6A), an outer lower spherical surface paramagnetic ring (6B), an outer upper magnetic steel gasket (7A) and an outer lower magnetic steel gasket (7B) are positioned at the radial inner side of the outer mounting sleeve (1), and are mounted on the outer mounting sleeve (1) through the thread fit between the outer mounting sleeve lock nut (8) and the outer mounting sleeve (1, the outer component lock nut (9) is positioned at the axial lower end of the outer mounting sleeve (1) and the outer mounting sleeve lock nut (8), the outer component lock nut (9) is positioned at the radial inner side of the outer wall of the annular groove of the rotor turntable (10), the outer mounting sleeve (1), the outer auxiliary magnetic steel (2), the outer upper magnetic conductive sleeve (3A), the outer lower magnetic conductive sleeve (3B), the outer insulating magnetic ring (4), the outer upper trapezoidal spherical magnetic steel (5A), the outer lower trapezoidal spherical magnetic steel (5B), the outer upper spherical surface along the magnetic ring (6A), the outer lower spherical surface along the magnetic ring (6B), the outer upper magnetic steel gasket (7A), the outer lower magnetic steel gasket (7B), the outer mounting sleeve lock nut (8) is positioned at the radial inner side of the outer wall of the annular groove of the rotor turntable (10), and is mounted on the rotor turntable (10) through the thread fit between the outer component lock nut (9) and the annular groove of the rotor turntable (10), and the inner mounting sleeve (11), An inner upper magnetic conductive sleeve (13A), an inner lower magnetic conductive sleeve (13B), an inner magnetic isolation ring (14), an inner upper trapezoidal spherical magnetic steel (15A), an inner lower trapezoidal spherical magnetic steel (15B), an inner upper spherical paramagnetic ring (16A), an inner lower spherical paramagnetic ring (16B), an inner upper magnetic steel washer (17A), an inner lower magnetic steel washer (17B) and the radial inner side of an inner mounting sleeve locking nut (18), wherein the inner auxiliary magnetic steel (12) is positioned at the radial outer central position of the inner mounting sleeve (11), the inner upper magnetic conductive sleeve (13A) and the inner lower magnetic conductive sleeve (13B) are respectively positioned at the axial upper end and the axial lower end of the inner auxiliary magnetic steel (12), the inner magnetic isolation ring (14) is positioned at the radial outer central position of the inner auxiliary magnetic steel (12), the inner upper trapezoidal spherical magnetic steel (15A), the inner upper spherical paramagnetic ring (16A) and the inner upper magnetic steel washer (17A) are positioned at the radial outer side of the inner upper magnetic conductive sleeve (13A) and the axial upper end of the inner magnetic isolation ring, the inner lower trapezoidal spherical magnetic steel (15B), the inner lower spherical paramagnetic ring (16B) and the inner lower magnetic steel washer (17B) are positioned at the radial outer side of the inner lower magnetic conductive sleeve (13B) and the axial lower end of the inner magnetic separation ring (14), the inner upper trapezoidal spherical magnetic steel (15A) and the inner lower trapezoidal spherical magnetic steel (15B) are respectively positioned at the axial upper end and the axial lower end of the inner magnetic separation ring (14), the inner upper spherical paramagnetic ring (16A) and the inner lower spherical paramagnetic ring (16B) are respectively positioned at the radial outer side of the inner upper trapezoidal spherical magnetic steel (15A) and the inner lower trapezoidal spherical magnetic steel (15B), the inner upper magnetic steel washer (17A) is positioned at the radial outer side of the inner upper trapezoidal magnetic conductive sleeve (13A), and the inner upper magnetic steel washer (17A) is positioned at the axial upper end of the inner upper trapezoidal magnetic steel (15A), the inner lower magnetic steel gasket (17B) is positioned at the radial outer side of the inner lower magnetic conductive sleeve (13B), the inner lower magnetic steel gasket (17B) is positioned at the axial lower ends of the inner lower trapezoidal spherical magnetic steel (15B) and the inner lower spherical clockwise magnetic ring (16B), the inner mounting sleeve lock nut (18) is positioned at the radial outer side of the inner mounting sleeve (11), the inner mounting sleeve lock nut (18) is positioned at the axial lower ends of the inner lower magnetic conductive sleeve (13B) and the inner lower magnetic steel gasket (17B), the inner auxiliary magnetic steel (12), the inner upper magnetic conductive sleeve (13A), the inner lower magnetic conductive sleeve (13B), the inner insulating magnetic ring (14), the inner upper trapezoidal spherical magnetic steel (15A), the inner lower trapezoidal spherical magnetic steel (15B), the inner upper spherical clockwise magnetic ring (16A), the inner lower spherical clockwise magnetic ring (16B), the inner upper magnetic steel gasket (17A) and the inner lower magnetic steel gasket (17B) are positioned at the radial inner mounting sleeve (11), and the inner mounting sleeve (11) is mounted through the thread fit between the inner mounting sleeve lock nut (18) and the inner mounting sleeve (11 On, interior subassembly lock mother (19) is located the radial outside of rotor carousel (10), interior subassembly lock mother (19) is located the axial lower extreme of interior installation cover (11) and interior installation cover lock mother (18), interior installation cover (11), interior auxiliary magnetic steel (12), interior upper flux sleeve (13A), interior lower flux sleeve (13B), interior partition magnetic ring (14), interior upper trapezoidal spherical magnetic steel (15A), interior lower trapezoidal spherical magnetic steel (15B), interior upper spherical is in the same direction as magnetic ring (16A), interior lower spherical is in the same direction as magnetic ring (16B), interior upper magnetic steel packing ring (17A), interior lower magnetic steel packing ring (17B), interior installation cover lock mother (18) is located the radial outside of rotor carousel (10) ring channel inner wall to install on rotor carousel (10) through the screw-thread fit between interior subassembly lock mother (19) and rotor carousel (10) ring channel, stator skeleton (20) is located outer partition magnetic ring (4), The stator comprises outer upper trapezoidal spherical magnetic steel (5A), outer lower trapezoidal spherical magnetic steel (5B), outer upper spherical clockwise magnetic ring (6A), outer lower spherical clockwise magnetic ring (6B), outer upper magnetic steel washer (7A), outer lower magnetic steel washer (7B), outer mounting sleeve lock nut (8) and the radial inner side of outer component lock nut (9), a stator framework (20) is positioned at the radial outer side of inner partition magnetic ring (14), inner upper trapezoidal spherical magnetic steel (15A), inner lower trapezoidal spherical magnetic steel (15B), inner upper spherical clockwise magnetic ring (16A), inner lower spherical clockwise magnetic ring (16B), inner upper magnetic steel washer (17A), inner lower magnetic steel washer (17B), inner mounting sleeve lock nut (18) and inner component lock nut (19), the stator framework (20) is provided with a left boss, a right boss, a front boss and a rear boss, a left winding (21A), a right winding (21B), a front winding (21C) and a rear winding (21D) are respectively wound on the left side of the stator framework (20), The right boss, the front boss and the rear boss are fixed through epoxy resin glue (22); an outer magnetism isolating ring (4), outer upper trapezoidal spherical magnetic steel (5A), outer lower trapezoidal spherical magnetic steel (5B), outer upper spherical forward magnetic ring (6A), outer lower spherical forward magnetic ring (6B), outer upper magnetic steel gasket (7A), outer lower magnetic steel gasket (7B), outer mounting sleeve lock nut (8) and the radial inner side of outer component lock nut (9) form an air gap (23) with the radial outer sides of inner partition magnetic ring (14), inner upper trapezoidal spherical magnetic steel (15A), inner lower trapezoidal spherical magnetic steel (15B), inner upper spherical forward magnetic ring (16A), inner lower spherical forward magnetic ring (16B), inner upper magnetic steel gasket (17A), inner lower magnetic steel gasket (17B), inner mounting sleeve lock nut (18) and inner component lock nut (19), and an outer auxiliary air gap (24) is formed between the radial inner side of outer auxiliary magnetic steel (2), the axial lower end of outer upper magnetic sleeve (3A) and the axial upper end of outer lower magnetic sleeve (3B), an inner auxiliary air gap (25) is formed between the radial outer side of the inner auxiliary magnetic steel (12), the axial lower end of the inner upper magnetic conductive sleeve (13A) and the axial upper end of the inner lower magnetic conductive sleeve (13B).

2. A high stiffness spherical lorentz yaw bearing with auxiliary air gap according to claim 1 wherein: the axial length of the outer auxiliary air gap (24) and the inner auxiliary air gap (25) is 1/4 of the outer auxiliary magnetic steel (2) and the inner auxiliary magnetic steel (12), and the radial width of the outer auxiliary magnetic steel (2) and the inner auxiliary magnetic steel (11) is 2/3.

3. A high stiffness spherical lorentz yaw bearing with auxiliary air gap according to claim 1 or 2, wherein: the radius of the outer spherical surface of the stator framework (20) is smaller than the inner diameters of the outer lower magnetic steel gasket (7B), the outer mounting sleeve lock nut (8) and the outer assembly lock nut (9), and the minimum inner diameter of the stator framework (20) is larger than the outer diameter of the inner magnetic isolation ring (14).

4. A high stiffness spherical lorentz yaw bearing with auxiliary air gap according to claim 1 or 2, wherein: the outer auxiliary magnetic steel (2), the outer upper trapezoidal spherical magnetic steel (5A), the outer lower trapezoidal spherical magnetic steel (5B), the inner auxiliary magnetic steel (12), the inner upper trapezoidal spherical magnetic steel (15A) and the inner lower trapezoidal spherical magnetic steel (15B) are made of neodymium iron boron alloy or cobalt alloy hard magnetic materials; the auxiliary magnetic steel is axially magnetized, the trapezoidal spherical magnetic steel is spherically and centripetally magnetized, and the magnetizing directions are as follows: the upper N and the lower S of the outer auxiliary magnetic steel (2), the upper S and the lower N of the inner auxiliary magnetic steel (12), the inner N and the outer S of the outer upper trapezoidal spherical magnetic steel (5A), the inner N and the outer S of the outer lower trapezoidal spherical magnetic steel (5B), the inner S and the outer N of the inner upper trapezoidal spherical magnetic steel (15A) and the inner S and the outer N of the inner lower trapezoidal spherical magnetic steel (15B); alternatively, the magnetizing direction may be: the upper S and the lower N of the outer auxiliary magnetic steel (2), the upper N and the lower S of the inner auxiliary magnetic steel (12), the inner S and the outer N of the outer upper trapezoidal spherical magnetic steel (5A), the inner S and the outer N of the outer lower trapezoidal spherical magnetic steel (5B), the inner N and the outer S of the inner upper trapezoidal spherical magnetic steel (14A) and the inner N and the outer S of the inner lower trapezoidal spherical magnetic steel (14B).

5. A high stiffness spherical lorentz yaw bearing with auxiliary air gap according to claim 1 or 2, wherein: the outer mounting sleeve (1), the outer magnetism isolating ring (4), the outer upper magnetic steel gasket (7A), the outer lower magnetic steel gasket (7B), the outer mounting sleeve lock nut (8), the outer assembly lock nut (9), the inner mounting sleeve (11), the inner magnetism isolating ring (14), the inner upper magnetic steel gasket (17A), the inner lower magnetic steel gasket (17B), the inner mounting sleeve lock nut (18) and the inner assembly lock nut (19) are all made of hard aluminum alloy 2A12 or super hard aluminum alloy 7A09 bar materials with good heat conducting property.

6. A high stiffness spherical lorentz yaw bearing with auxiliary air gap according to claim 1 or 2, wherein: the outer upper magnetic sleeve (3A), the outer lower magnetic sleeve (3B), the outer upper spherical surface smoothing magnetic ring (6A), the outer lower spherical surface smoothing magnetic ring (6B), the inner upper magnetic sleeve (13A), the inner lower magnetic sleeve (13B), the inner upper spherical surface smoothing magnetic ring (16A) and the inner lower spherical surface smoothing magnetic ring (16B) are all made of 1J50 or 1J22 bar materials.

7. A high stiffness spherical lorentz yaw bearing with auxiliary air gap according to claim 1 or 2, wherein: the stator framework (20) is made of high-temperature-resistant and high-strength polyimide material.

8. A high stiffness spherical lorentz yaw bearing with auxiliary air gap according to claim 1 or 2, wherein: the curing environment of the epoxy resin adhesive (22) is a normal-temperature vacuum environment, and the curing time is not less than 72 hours.