CN204716759U - A kind of two-freedom Lorentz force external rotor sphere magnetic bearing - Google Patents
A kind of two-freedom Lorentz force external rotor sphere magnetic bearing Download PDFInfo
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- CN204716759U CN204716759U CN201520308928.6U CN201520308928U CN204716759U CN 204716759 U CN204716759 U CN 204716759U CN 201520308928 U CN201520308928 U CN 201520308928U CN 204716759 U CN204716759 U CN 204716759U
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Abstract
The utility model discloses a kind of two-freedom Lorentz force external rotor sphere magnetic bearing, comprise coil, every magnetic boss, stator sphere magnetic guiding loop, every magnetic screw, epoxy resin glue, fitting seat, sphere magnet steel, magnetism resistent ring, rotor magnetic guiding loop, rotor locknut and rotor sleeve, two pairs of coils are respectively used to the deflection control of radial X and Y of magnetic bearing, two pairs of coils are fixed on stator sphere magnetic guiding loop by epoxy resin glue, sphere magnet steel is positioned at coil radial outside, sphere magnet steel inner ball surface and rotor magnetic guiding loop outer spherical surface leave certain spherical shell gap, form air gap.Owing to have employed spherical shell shape air gap, rotor can wide-angle deflection, overcomes the shortcoming that existing cylindrical air gap Lorentz force magnetic bearing angle of yaw is less.In addition, when rotor deflection is to any position, the Ampere force that hot-wire coil electric current produces is tangent with coil place sphere all the time, and namely the arm of force of the couple of the Ampere force composition of often pair of coil is constant, thus improves the control moment precision of Lorentz force.
Description
Technical field
The utility model relates to a kind of non-contact magnetically suspension bearing, particularly relates to a kind of two-freedom Lorentz force external rotor sphere magnetic bearing.
Background technique
Magnetic suspension bearing is divided into magnetoresistive type magnetic bearing and Lorentz force magnetic bearing, and the former changes the size of magnetic flux by the air-gap reluctance changing magnetic bearing, thus controls the electromagnetic force of magnetic bearing output.Due to square being directly proportional of electromagnetic force and magnetic flux, magnetic flux is directly proportional to coil magnetomotive force, and thus magnetoresistive type magnetic bearing electromagnetic force and coil control electric current and become quadratic relationship, adopt the range of linearity after linearization narrower.The air-gap reluctance of Lorentz force magnetic bearing and magnetomotive force are constant, and the magnetic in air gap is close and magnetic flux is constant, and output electromagnetic force controls electric current to coil and is directly proportional, and has the good linearity.Thus Lorentz force magnetic bearing is very suitable for highi degree of accuracy control, can be used as magnetic suspension high-torque flywheel and the responsive gyro of magnetic suspension radial two-freedom deflection suspension bearing.
In prior art, a kind of Large-torque magnetic suspension flywheel described in granted patent 201110253688.0 have employed a kind of two-freedom Lorentz force magnetic bearing, by controlling the size and Orientation of four the square coil electric currents along the circumferential direction evenly placed, achieve the suspend control of radial two deflection degrees of freedom.Lorentz force magnetic bearing stator in the program is columned cup-shaped stator, magnetic gap is annulus column, can only be there is very low-angle deflection in Lorentz force magnetic bearing, be generally 1 ° ~ 3 °, and the high-torque time is shorter and maximum output gyrostatic moment is less to cause magnetic suspension high-torque flywheel to export.Due to the edge effect of permeability magnetic material, cause air gap internal magnetic field in the program uneven in radial direction, when causing Lorentz force magnetic bearing to deflect, act on that the magnetic of control coil is close to change, thus reduce the precision of electromagnetic force.In addition, in the program, Lorentz force cup-shaped stator is the poor nonmetallic material of thermal conductivity, and be not easy to heat radiation, temperature drift when causing magnetic bearing to work, reduces reliability and the life-span of magnetic bearing self.
Model utility content
The purpose of this utility model be to provide a kind of can wide-angle deflection, be easy to dispel the heat, the two-freedom Lorentz force sphere magnetic bearing of high control moment precision.
The purpose of this utility model is achieved through the following technical solutions:
Two-freedom Lorentz force external rotor sphere magnetic bearing of the present utility model, primarily of stator system and rotor-support-foundation system two-part composition, stator system mainly comprises: left coil, right coil, front coil, rear coil, left every magnetic boss, right every magnetic boss, front every magnetic boss, after every magnetic boss, stator sphere magnetic guiding loop, left every magnetic screw, right every magnetic screw, front every magnetic screw, after every magnetic screw, epoxy resin glue and fitting seat, rotor-support-foundation system mainly comprises: upper sphere magnet steel, lower peripheral surface magnet steel, magnetism resistent ring, rotor magnetic guiding loop, rotor locknut and rotor sleeve, left coil, right coil, front coil and rear coil use in pairs, left coil and right coil groups control to deflection for radial X in a pair, front coil and rear coil groups control for radial Y-direction deflection in a pair, left coil is wrapped in left on magnetic boss, right coil winding on the right side on magnetic boss, before front coil is wrapped on magnetic boss, rear coil winding after on magnetic boss, a left side is positioned at stator sphere magnetic guiding loop footpath to the left every magnetic boss, and be fixed on stator sphere magnetic guiding loop outer spherical surface by a left side every magnetic screw, the right side is positioned at stator sphere magnetic guiding loop footpath to the right every magnetic boss, and be fixed on stator sphere magnetic guiding loop outer spherical surface by the right side every magnetic screw, before be positioned on front side of stator sphere magnetic guiding loop radial direction every magnetic boss, and be fixed on stator sphere magnetic guiding loop outer spherical surface by front every magnetic screw, after be positioned on rear side of stator sphere magnetic guiding loop radial direction every magnetic boss, and by after be fixed on stator sphere magnetic guiding loop outer spherical surface every magnetic screw, left coil, right coil, front coil and rear coil are arranged on stator sphere magnetic guiding loop by epoxy resin adhesive curing, left coil, right coil, front coil, rear coil, left every magnetic boss, right every magnetic boss, front every magnetic boss, after every magnetic boss, stator sphere magnetic guiding loop, left every magnetic screw, right every magnetic screw, front every magnetic screw, after to be positioned at the upper end of fitting seat every magnetic screw and epoxy resin glue, and be fixedly mounted on fitting seat by stator sphere magnetic guiding loop with being threaded of fitting seat, upper sphere magnet steel and lower peripheral surface magnet steel lay respectively at left coil, right coil, above the radial outside of front coil and rear coil and below radial outside, magnetism resistent ring is between upper sphere magnet steel and lower peripheral surface magnet steel, and rotor magnetic guiding loop is positioned at sphere magnet steel, the radial outside of lower peripheral surface magnet steel and magnetism resistent ring, rotor locknut is positioned at the lower end of lower peripheral surface magnet steel and rotor magnetic guiding loop, upper sphere magnet steel, lower peripheral surface magnet steel, magnetism resistent ring, rotor magnetic guiding loop and rotor locknut are positioned at the radially inner side of rotor sleeve, and be fixedly mounted on the radially inner side of rotor sleeve by rotor locknut with being threaded of rotor sleeve, upper sphere magnet steel and leave certain gap between lower peripheral surface magnet steel and stator sphere magnetic guiding loop, forms air gap.
The technological scheme provided as can be seen from above-mentioned the utility model, the two-freedom Lorentz force sphere magnetic bearing that the utility model embodiment provides, owing to have employed spherical shell shape gap structure, compared with the Lorentz force magnetic bearing of post shelly air gap, add the deflection angle of Lorentz force magnetic bearing, do not change the magnetic intensity acting on stator coil simultaneously, improve magnetic bearing deflection control moment precision.Compared with the Lorentz force magnetic bearing of double-sided rotor, the utility model is owing to have employed monolateral outer-rotor structure, its coil is directly installed on stator magnetic guiding loop, the heat that hot-wire coil produces can directly be conducted by the magnetic guiding loop of high heat-conducting system rapidly, reduce the temperature rise of magnetic bearing system, improve system reliability.
Accompanying drawing explanation
The radial X of the two-freedom Lorentz force external rotor sphere magnetic bearing that Fig. 1 provides for the utility model embodiment is to sectional view;
The radial Y-direction sectional view of the two-freedom Lorentz force external rotor sphere magnetic bearing that Fig. 2 provides for the utility model embodiment;
Fig. 3 a is that the radial X of stator system in the utility model embodiment is to sectional view;
Fig. 3 b is the radial Y-direction sectional view of the stator system in the utility model embodiment;
Fig. 4 be left coil in the stator system in the utility model embodiment, right coil, front coil, rear coil, left every magnetic boss, right every magnetic boss, front every magnetic boss, after every magnetic boss, stator sphere magnetic guiding loop, left every magnetic screw, right every magnetic screw, front every magnetic screw and after every the assembling schematic diagram of magnetic screw;
Fig. 5 is the sectional view of the rotor-support-foundation system in the utility model embodiment;
Fig. 6 a is the sectional view of the stator sphere magnetic guiding loop in the utility model embodiment;
Fig. 6 b is the three-dimensional structure schematic diagram of the stator sphere magnetic guiding loop in the utility model embodiment;
Fig. 7 a is the sectional view of upper sphere magnet steel in the utility model embodiment and lower peripheral surface magnet steel;
Fig. 7 b is the three-dimensional structure schematic diagram of upper sphere magnet steel in the utility model embodiment and lower peripheral surface magnet steel.
Embodiment
To be described in further detail the utility model embodiment below.
Two-freedom Lorentz force external rotor sphere magnetic bearing of the present utility model, its preferably embodiment be:
Primarily of stator system and rotor-support-foundation system two-part composition, stator system mainly comprises: left coil, right coil, front coil, rear coil, left every magnetic boss, right every magnetic boss, front every magnetic boss, after every magnetic boss, stator sphere magnetic guiding loop, left every magnetic screw, right every magnetic screw, front every magnetic screw, after every magnetic screw, epoxy resin glue and fitting seat, rotor-support-foundation system mainly comprises: upper sphere magnet steel, lower peripheral surface magnet steel, magnetism resistent ring, rotor magnetic guiding loop, rotor locknut and rotor sleeve, left coil, right coil, front coil and rear coil use in pairs, left coil and right coil groups control to deflection for radial X in a pair, front coil and rear coil groups control for radial Y-direction deflection in a pair, left coil is wrapped in left on magnetic boss, right coil winding on the right side on magnetic boss, before front coil is wrapped on magnetic boss, rear coil winding after on magnetic boss, a left side is positioned at stator sphere magnetic guiding loop footpath to the left every magnetic boss, and be fixed on stator sphere magnetic guiding loop outer spherical surface by a left side every magnetic screw, the right side is positioned at stator sphere magnetic guiding loop footpath to the right every magnetic boss, and be fixed on stator sphere magnetic guiding loop outer spherical surface by the right side every magnetic screw, before be positioned on front side of stator sphere magnetic guiding loop radial direction every magnetic boss, and be fixed on stator sphere magnetic guiding loop outer spherical surface by front every magnetic screw, after be positioned on rear side of stator sphere magnetic guiding loop radial direction every magnetic boss, and by after be fixed on stator sphere magnetic guiding loop outer spherical surface every magnetic screw, left coil, right coil, front coil and rear coil are arranged on stator sphere magnetic guiding loop by epoxy resin adhesive curing, left coil, right coil, front coil, rear coil, left every magnetic boss, right every magnetic boss, front every magnetic boss, after every magnetic boss, stator sphere magnetic guiding loop, left every magnetic screw, right every magnetic screw, front every magnetic screw, after to be positioned at the upper end of fitting seat every magnetic screw and epoxy resin glue, and be fixedly mounted on fitting seat by stator sphere magnetic guiding loop with being threaded of fitting seat, upper sphere magnet steel and lower peripheral surface magnet steel lay respectively at left coil, right coil, above the radial outside of front coil and rear coil and below radial outside, magnetism resistent ring is between upper sphere magnet steel and lower peripheral surface magnet steel, and rotor magnetic guiding loop is positioned at sphere magnet steel, the radial outside of lower peripheral surface magnet steel and magnetism resistent ring, rotor locknut is positioned at the lower end of lower peripheral surface magnet steel and rotor magnetic guiding loop, upper sphere magnet steel, lower peripheral surface magnet steel, magnetism resistent ring, rotor magnetic guiding loop and rotor locknut are positioned at the radially inner side of rotor sleeve, and be fixedly mounted on the radially inner side of rotor sleeve by rotor locknut with being threaded of rotor sleeve, upper sphere magnet steel and leave certain gap between lower peripheral surface magnet steel and stator sphere magnetic guiding loop, forms air gap.
A described left side every magnetic boss, right every magnetic boss, front every magnetic boss, after every magnetic boss, left every magnetic screw, right every magnetic screw, front every magnetic screw and after be insulated non-metal polyimide material every magnetic screw.
Described stator sphere magnetic guiding loop and rotor magnetic guiding loop are electrical pure iron DT4C or 1J50 magnetic conduction bulk materials.
Described epoxy resin glue is two component water, and two kinds of glue ratios are 1:2, and its curing environment is normal-temperature vacuum environment, is not less than 24 hours curing time.
Described upper sphere magnet steel and lower peripheral surface magnet steel are Nd Fe B alloys or shirt cobalt alloy hard magnetic material, are radial magnetizing, and magnetizing direction is contrary, and both boundary dimension are completely the same.
Described air gap size is 6mm ~ 8mm.
The principle of such scheme is:
Two-freedom Lorentz force magnetic bearing in the utility model is that two-freedom radial deflection controls magnetic bearing, the deflection of rotor radially X, Y-direction can be controlled, namely the Ampere force composition couple utilizing the two equal and opposite in direction directions produced paired hot-wire coil contrary, controls the deflection of radial two-freedom.As shown in the direction of arrow in Fig. 1,2, permanent magnetic circuit of the present utility model is: magnetic flux is from upper sphere magnet steel N pole, through air gap upper end, arrive stator sphere magnetic guiding loop outer spherical surface upper end, flow out from stator sphere magnetic guiding loop outer spherical surface lower end subsequently, through air gap lower end, arrive lower peripheral surface magnet steel S pole, and flow out from lower peripheral surface magnet steel N pole, get back to upper sphere magnet steel S pole through rotor magnetic guiding loop.
In Lorentz force magnetic bearing working procedure, air gap can not change, the whole magnetic circuit of permanent magnetic circuit can not change, magnetic in air gap is close is constant with magnetic flux, the radial deflection power that magnetic bearing exports and coil control current related, and linear, namely deflecting force and deflecting torque and control electric current have good linear relationship.In addition, owing to have employed spherical shell shape gap structure, magnetic bearing can realize the deflection of greater angle can longer time output torque or export larger gyrostatic moment instantaneously, and after magnetic bearing rotor deflection, the arm of force of the couple of the Ampere force composition that paired hot-wire coil produces is always spherical diameter, namely the arm of force is constant, thus can improve the deflecting torque precision of Lorentz force magnetic bearing output.In addition, four coils used in pairs are directly fixed on stator sphere magnetic guiding loop outer spherical surface by epoxy resin glue, coil directly contacts with the sphere magnetic guiding loop of high thermal conductivity coefficient, be conducive to hot-wire coil heat transfer, reduce the temperature rise of Lorentz force magnetic bearing, improve the reliability of magnetic bearing system.
The utility model advantage is compared with prior art:
The utility model is owing to have employed spherical shell shape gap structure, compared with the Lorentz force magnetic bearing of post shelly air gap, add the deflection angle of Lorentz force magnetic bearing, do not change the magnetic intensity acting on stator coil simultaneously, improve magnetic bearing deflection control moment precision.Compared with the Lorentz force magnetic bearing of double-sided rotor, the utility model is owing to have employed monolateral outer-rotor structure, its coil is directly installed on stator magnetic guiding loop, the heat that hot-wire coil produces can directly be conducted by the magnetic guiding loop of high heat-conducting system rapidly, reduce the temperature rise of magnetic bearing system, improve system reliability.
Specific embodiment:
As shown in Figure 1, 2, a kind of two-freedom Lorentz force external rotor sphere magnetic bearing, primarily of stator system and rotor-support-foundation system two-part composition, stator system mainly comprises: left coil 1A, right coil 1B, front coil 1C, rear coil 1D, left every magnetic boss 2A, right every magnetic boss 2B, front every magnetic boss 2C, after every magnetic boss 2D, stator sphere magnetic guiding loop 3, left every magnetic screw 4A, right every magnetic screw 4B, front every magnetic screw 4C, after every magnetic screw 4D, epoxy resin glue 5 and fitting seat 6, rotor-support-foundation system mainly comprises: upper sphere magnet steel 7A, lower peripheral surface magnet steel 7B, magnetism resistent ring 8, rotor magnetic guiding loop 9, rotor locknut 10 and rotor sleeve 11, left coil 1A, right coil 1B, front coil 1C and rear coil 1D uses in pairs, left coil 1A and right coil 1B partners for radial X to deflection control, front coil 1C and rear coil 1D partners for radial Y-direction deflection control, left coil 1A is wrapped in left on magnetic boss 2A, right coil 1B is wrapped in right on magnetic boss 2B, before front coil 1C is wrapped on magnetic boss 2C, after rear coil 1D is wrapped on magnetic boss 2D, a left side is positioned at stator sphere magnetic guiding loop 3 footpath to the left every magnetic boss 2A, and be fixed on stator sphere magnetic guiding loop 3 outer spherical surface by a left side every magnetic screw 4A, the right side is positioned at stator sphere magnetic guiding loop 3 footpath to the right every magnetic boss 2B, and be fixed on stator sphere magnetic guiding loop 3 outer spherical surface by the right side every magnetic screw 4B, before be positioned at the radial front side of stator sphere magnetic guiding loop 3 every magnetic boss 2C, and be fixed on stator sphere magnetic guiding loop 3 outer spherical surface by front every magnetic screw 4C, after be positioned at the radial rear side of stator sphere magnetic guiding loop 3 every magnetic boss 2D, and by after be fixed on stator sphere magnetic guiding loop 3 outer spherical surface every magnetic screw 4D, left coil 1A, right coil 1B, front coil 1C and rear coil 1D is arranged on stator sphere magnetic guiding loop 3 by epoxy resin glue 5 solidification, left coil 1A, right coil 1B, front coil 1C, rear coil 1D, left every magnetic boss 2A, right every magnetic boss 2B, front every magnetic boss 2C, after every magnetic boss 2D, stator sphere magnetic guiding loop 3, left every magnetic screw 4A, right every magnetic screw 4B, front every magnetic screw 4C, after to be positioned at the upper end of fitting seat 6 every magnetic screw 4D and epoxy resin glue 5, and be fixedly mounted on fitting seat 6 by stator sphere magnetic guiding loop 3 with being threaded of fitting seat 6, upper sphere magnet steel 7A and lower peripheral surface magnet steel 7B lays respectively at left coil 1A, right coil 1B, above the radial outside of front coil 1C and rear coil 1D and below radial outside, magnetism resistent ring 8 is between upper sphere magnet steel 7A and lower peripheral surface magnet steel 7B, rotor magnetic guiding loop 9 is positioned at sphere magnet steel 7A, the radial outside of lower peripheral surface magnet steel 7B and magnetism resistent ring 8, rotor locknut 10 is positioned at the lower end of lower peripheral surface magnet steel 7B and rotor magnetic guiding loop 9, upper sphere magnet steel 7A, lower peripheral surface magnet steel 7B, magnetism resistent ring 8, rotor magnetic guiding loop 9 and rotor locknut 10 are positioned at the radially inner side of rotor sleeve 11, and be fixedly mounted on the radially inner side of rotor sleeve 11 by rotor locknut 10 with being threaded of rotor sleeve 11, certain gap is left between upper sphere magnet steel 7A and lower peripheral surface magnet steel 7B and stator sphere magnetic guiding loop 3, form air gap 12.
As Fig. 3 a, shown in Fig. 3 b and Fig. 4, stator system mainly comprises: left coil 1A, right coil 1B, front coil 1C, rear coil 1D, left every magnetic boss 2A, right every magnetic boss 2B, front every magnetic boss 2C, after every magnetic boss 2D, stator sphere magnetic guiding loop 3, left every magnetic screw 4A, right every magnetic screw 4B, front every magnetic screw 4C, after every magnetic screw 4D, epoxy resin glue 5 and fitting seat 6, left coil 1A, right coil 1B, front coil 1C and rear coil 1D is wrapped in left every magnetic boss 2A respectively, right every magnetic boss 2B, before every magnetic boss 2C and after on magnetic boss 2D, left every magnetic boss 2A, right every magnetic boss 2B, before every magnetic boss 2C and after to lay respectively at the left side of stator sphere magnetic guiding loop 3 every magnetic boss 2D, right side, front side and rear side, and respectively by a left side every magnetic screw 4A, right every magnetic screw 4B, before every magnetic screw 4C and after be fixed on stator sphere magnetic guiding loop 3 every magnetic screw 4D, left coil 1A, right coil 1B, front coil 1C and rear coil 1D is arranged on stator sphere magnetic guiding loop 3 by epoxy resin glue 5 solidification, and stator sphere magnetic guiding loop 3 is threaded connection and is arranged on fitting seat 6.Epoxy resin glue 5 is two component water, and two kinds of glue ratios are 1:2, and its curing environment is normal-temperature vacuum environment, is not less than 24 hours curing time.
Fig. 5 is the sectional view of the utility model rotor system, upper sphere magnet steel 7A and lower peripheral surface magnet steel 7B lays respectively at the top and bottom of magnetism resistent ring 8, rotor magnetic guiding loop 9 is positioned at sphere magnet steel 7A, the radial outside of lower peripheral surface magnet steel 7B and magnetism resistent ring 8, rotor locknut 10 is positioned at the lower end of lower peripheral surface magnet steel 7B and rotor magnetic guiding loop 9, upper sphere magnet steel 7A, lower peripheral surface magnet steel 7B, magnetism resistent ring 8, rotor magnetic guiding loop 9 and rotor locknut 10 are positioned at the radially inner side of rotor sleeve 11, and be fixedly mounted on the radially inner side of rotor sleeve 11 by rotor locknut 10 with being threaded of rotor sleeve 11, during the assembling of magnetic bearing rotor-support-foundation system, in requirement, the inner ball surface centre of sphere of sphere magnet steel 7A and lower peripheral surface magnet steel 7B overlaps completely.
Fig. 6 a is the sectional view of stator sphere magnetic guiding loop 3 in the utility model, Fig. 6 b is the three-dimensional structure schematic diagram of stator sphere magnetic guiding loop 3 in the utility model, its material is electrical pure iron DT4C or 1J50 magnetic conduction bulk materials, by outer spherical surface 31 with left every magnetic boss 2A, right every magnetic boss 2B, before every magnetic boss 2C and after coordinate every the inner ball surface of magnetic boss 2D, left hand thread hole 32, right-hand thread hole 33, preceding thread hole 34 and rear thread hole 35 are respectively used to a left side every magnetic screw 4A, right every magnetic screw 4B, before every magnetic screw 4C and after be threaded every magnetic screw 4D, fitting seat screw thread 36 is for being threaded with fitting seat 6.
Fig. 7 a is the sectional view of upper sphere magnet steel 7A and lower peripheral surface magnet steel 7B in the utility model, Fig. 7 b is the three-dimensional structure schematic diagram of upper sphere magnet steel 7A and lower peripheral surface magnet steel 7B in the utility model, its material is Nd Fe B alloys or shirt cobalt alloy hard magnetic material, both boundary dimension is completely the same, be radial magnetizing, and magnetizing direction is contrary.
The content be not described in detail in the utility model specification belongs to the known prior art of professional and technical personnel in the field.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (6)
1. a two-freedom Lorentz force external rotor sphere magnetic bearing, primarily of stator system and rotor-support-foundation system two-part composition, it is characterized in that: stator system mainly comprises: left coil (1A), right coil (1B), front coil (1C), rear coil (1D), left every magnetic boss (2A), right every magnetic boss (2B), front every magnetic boss (2C), after every magnetic boss (2D), stator sphere magnetic guiding loop (3), left every magnetic screw (4A), right every magnetic screw (4B), front every magnetic screw (4C), after every magnetic screw (4D), epoxy resin glue (5) and fitting seat (6), rotor-support-foundation system mainly comprises: upper sphere magnet steel (7A), lower peripheral surface magnet steel (7B), magnetism resistent ring (8), rotor magnetic guiding loop (9), rotor locknut (10) and rotor sleeve (11), left coil (1A), right coil (1B), front coil (1C) and rear coil (1D) use in pairs, left coil (1A) and right coil (1B) partner for radial X to deflection control, front coil (1C) and rear coil (1D) partner for radial Y-direction deflection control, left coil (1A) is wrapped in left on magnetic boss (2A), right coil (1B) is wrapped in right on magnetic boss (2B), before front coil (1C) is wrapped on magnetic boss (2C), after rear coil (1D) is wrapped on magnetic boss (2D), a left side is positioned at stator sphere magnetic guiding loop (3) footpath to the left every magnetic boss (2A), and be fixed on stator sphere magnetic guiding loop (3) outer spherical surface by left every magnetic screw (4A), the right side is positioned at stator sphere magnetic guiding loop (3) footpath to the right every magnetic boss (2B), and be fixed on stator sphere magnetic guiding loop (3) outer spherical surface by right every magnetic screw (4B), before be positioned at the radial front side of stator sphere magnetic guiding loop (3) every magnetic boss (2C), and be fixed on stator sphere magnetic guiding loop (3) outer spherical surface by front every magnetic screw (4C), after be positioned at the radial rear side of stator sphere magnetic guiding loop (3) every magnetic boss (2D), and be fixed on stator sphere magnetic guiding loop (3) outer spherical surface every magnetic screw (4D) after passing through, left coil (1A), right coil (1B), front coil (1C) and rear coil (1D) are arranged on stator sphere magnetic guiding loop (3) by epoxy resin glue (5) solidification, left coil (1A), right coil (1B), front coil (1C), rear coil (1D), left every magnetic boss (2A), right every magnetic boss (2B), front every magnetic boss (2C), after every magnetic boss (2D), stator sphere magnetic guiding loop (3), left every magnetic screw (4A), right every magnetic screw (4B), front every magnetic screw (4C), after to be positioned at the upper end of fitting seat (6) every magnetic screw (4D) and epoxy resin glue (5), and be fixedly mounted on fitting seat (6) by stator sphere magnetic guiding loop (3) with being threaded of fitting seat (6), upper sphere magnet steel (7A) and lower peripheral surface magnet steel (7B) lay respectively at left coil (1A), right coil (1B), above the radial outside of front coil (1C) and rear coil (1D) and below radial outside, magnetism resistent ring (8) is positioned between sphere magnet steel (7A) and lower peripheral surface magnet steel (7B), rotor magnetic guiding loop (9) is positioned at sphere magnet steel (7A), the radial outside of lower peripheral surface magnet steel (7B) and magnetism resistent ring (8), rotor locknut (10) is positioned at the lower end of lower peripheral surface magnet steel (7B) and rotor magnetic guiding loop (9), upper sphere magnet steel (7A), lower peripheral surface magnet steel (7B), magnetism resistent ring (8), rotor magnetic guiding loop (9) and rotor locknut (10) are positioned at the radially inner side of rotor sleeve (11), and be fixedly mounted on the radially inner side of rotor sleeve (11) by rotor locknut (10) with being threaded of rotor sleeve (11), upper sphere magnet steel (7A) and leave certain gap between lower peripheral surface magnet steel (7B) and stator sphere magnetic guiding loop (3), form air gap (12).
2. two-freedom Lorentz force external rotor sphere magnetic bearing according to claim 1, is characterized in that: a described left side every magnetic boss (2A), right every magnetic boss (2B), front every magnetic boss (2C), after every magnetic boss (2D), left every magnetic screw (4A), right every magnetic screw (4B), front every magnetic screw (4C) and after be insulated non-metal polyimide material every magnetic screw (4D).
3. two-freedom Lorentz force external rotor sphere magnetic bearing according to claim 1, is characterized in that: described stator sphere magnetic guiding loop (3) and rotor magnetic guiding loop (9) are electrical pure iron DT4C or 1J50 magnetic conduction bulk materials.
4. two-freedom Lorentz force external rotor sphere magnetic bearing according to claim 1, it is characterized in that: described epoxy resin glue (5) is two component water, two kinds of glue ratios are 1:2, and its curing environment is normal-temperature vacuum environment, is not less than 24 hours curing time.
5. two-freedom Lorentz force external rotor sphere magnetic bearing according to claim 1, it is characterized in that: described upper sphere magnet steel (7A) and lower peripheral surface magnet steel (7B) are Nd Fe B alloys or shirt cobalt alloy hard magnetic material, be radial magnetizing, magnetizing direction is contrary, and both boundary dimension are completely the same.
6. two-freedom Lorentz force external rotor sphere magnetic bearing according to claim 1, is characterized in that: described air gap (12) size is 6mm ~ 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520308928.6U CN204716759U (en) | 2015-05-13 | 2015-05-13 | A kind of two-freedom Lorentz force external rotor sphere magnetic bearing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520308928.6U CN204716759U (en) | 2015-05-13 | 2015-05-13 | A kind of two-freedom Lorentz force external rotor sphere magnetic bearing |
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| CN204716759U true CN204716759U (en) | 2015-10-21 |
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|---|---|---|---|
| CN201520308928.6U Withdrawn - After Issue CN204716759U (en) | 2015-05-13 | 2015-05-13 | A kind of two-freedom Lorentz force external rotor sphere magnetic bearing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895921A (en) * | 2015-05-13 | 2015-09-09 | 北京石油化工学院 | Two freedom degree lorentz force outer rotor spherical surface magnetic bearing |
| CN107607099A (en) * | 2017-08-31 | 2018-01-19 | 北京石油化工学院 | A kind of magnetic suspension control sensitivity gyro of the common position of prosecution |
-
2015
- 2015-05-13 CN CN201520308928.6U patent/CN204716759U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895921A (en) * | 2015-05-13 | 2015-09-09 | 北京石油化工学院 | Two freedom degree lorentz force outer rotor spherical surface magnetic bearing |
| CN107607099A (en) * | 2017-08-31 | 2018-01-19 | 北京石油化工学院 | A kind of magnetic suspension control sensitivity gyro of the common position of prosecution |
| CN107607099B (en) * | 2017-08-31 | 2020-05-22 | 北京石油化工学院 | Magnetic suspension control sensitive gyroscope with detection and control co-location |
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Granted publication date: 20151021 Effective date of abandoning: 20170804 |