CN105897063B - A kind of magnetic levitation system with self-centering function - Google Patents
A kind of magnetic levitation system with self-centering function Download PDFInfo
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- CN105897063B CN105897063B CN201610364679.1A CN201610364679A CN105897063B CN 105897063 B CN105897063 B CN 105897063B CN 201610364679 A CN201610364679 A CN 201610364679A CN 105897063 B CN105897063 B CN 105897063B
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- armature
- solenoid coil
- magnetic
- iron core
- sensitive element
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N15/00—Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnets (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The invention discloses a kind of magnetic levitation system with self-centering function, including：Solenoid coil, for obtaining the magnetic force to suspend；Iron core, the magnetic field for being energized solenoid coil becomes a magnet after magnetizing, and is overlapped mutually with solenoid coil magnetic field, makes the magnetic enhancement of solenoid coil, and magnetic just disappears therewith after solenoid coil powers off；Armature, for hanging the gyro sensitive element in north finder, inside is surrounded in iron core when armature suspends, the center of putting can be automatically positioned；Connection ring, its profile are in annular, and the capping that center one is open, capping internal face has internal thread, for connecting gyro sensitive element and armature in north finder.The present invention can make the gyro sensitive element of north finder suspend surely automatically center, make gyro sensitive element operating position reproducible, stably, have the characteristics that compact-sized, reliability is high, environmental suitability is strong, harmful torque is small, suitable in the higher instrument and equipment of environmental suitability and reliability requirement.
Description
Technical field
The invention belongs to inertia to seek northern orientation survey technical field, and in particular to a kind of magnetcisuspension with self-centering function
Floating device, is installed in the equipment such as high accuracy gyroscope north finder, gyrotheodolite, passes through the suspending gyrorotor sensing element sensitivity earth
Component of the angular speed in its sensitive axes, which is realized, seeks north.
Background technology
With the development of technology, the north finding precision more and more higher of north finder, and because it often makes in the field environment
With also higher to environmental suitability and reliability requirement, environment temperature requirement can be normal under conditions of -40 DEG C~+50 DEG C
Use, this has higher requirement to the various structural members and electronic device inside north finder.
The gyro sensitive element used in moment gyroscope north finder, there is two kinds of metallic suspension belt, air-flotation type.Air-flotation type top
Spiral shell sensing element, it carries a micro air pump, and volume weight is big, inconvenient for operation, and precision is relatively low.At present using wide
Be metallic suspension belt gyro sensitive element, but metallic suspension band can produce larger torsion type be harmful to torque, reliability
Low, shock resistance is poor, and suspension strap, which is preferably deformed or is broken by vibrations, causes permanent fault, and north finding precision is difficult to improve, and has this
The gyroscope north searching instrument of kind metallic suspension belt, north finding precision is without 20 rads of breakthrough in the range of total temperature.
The content of the invention
The defects of for prior art, it is an object of the invention to provide a kind of magnetic suspension dress with self-centering function
Put, it is intended to solve the problems, such as the suspender belt deformation brought in the prior art because rotor case is overweight or fracture.
The invention provides a kind of magnetic levitation system with self-centering function, the magnetic levitation system includes：Helical
Pipeline circle, it is in truncated cone-shaped that its is hollow, for obtaining the magnetic force to suspend；Iron core, its profile are in the cylinder with platform, and centre is embedded
The solenoid coil, the magnetic field for being energized solenoid coil become a magnet after magnetizing, and with solenoid coil magnetic
Field is overlapped mutually, and makes the magnetic enhancement of solenoid coil, and magnetic just disappears therewith after solenoid coil powers off；Armature, outside it
Shape is spherical in shape, for hanging the gyro sensitive element in north finder；And connection ring, its profile are in annular, center one is open
Capping, capping internal face have internal thread, for connecting gyro sensitive element and armature in north finder.
Further, the size of the armature matches with the iron core, the size of the connection ring and the armature
Match with the iron core.
Further, inside the armature suspends the encirclement in the iron core, the center of putting can be automatically positioned.
Further, iron core longitudinal direction section view is inShape,Shape or so is than middle long, the length of the iron core
Equal to 1.2 times of the diameter of the armature.
Further, the end that the armature is connected with the gyro sensitive element in north finder is the loudspeaker in flaring out
Shape, screw thread is provided with flared end outer peripheral face, spherical armature is placed in the opening, and passes through connection ring and the end
Screw togather, so as to which the armature is fixedly connected on into gyro sensitive element upper end, and armature first half protrusion connection ring exposes capping.
Further, the top by being passed through the electric current of solenoid coil in the electromagnet to control in the north finder
The hoverheight of spiral shell sensing element.
The magnetic levitation system contour structures of the present invention are compact, assembling and convenient disassembly, can bear larger axial force, be reliable
Property it is high, environmental suitability is strong, solve metal gallus-type metal suspender belt and preferably deform or be broken；The bulky skill of air-flotation type sensing element
Art problem, while the harmful torque of suspension is also reduced, laid a good foundation to improve north finder precision.Therefore it is applied to high accuracy gyroscope
In north finder, there is preferable application value and promotion prospect.
Brief description of the drawings
Fig. 1 is the structure schematic cross-sectional view of the present invention.
Fig. 2 connects schematic cross-sectional view for the armature in the present invention, connection ring with gyro sensitive element.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The invention provides a kind of magnetic levitation system with self-centering function, using magnetic suspension mode, reduces metal
Suspender belt in gallus-type sensing element is harmful to moment of torsion, overcomes the hidden danger of the overweight suspender belt deformation brought of rotor case or fracture, has
The characteristics of north finding precision is high, reliability is high, environmental suitability is strong.
A kind of magnetic levitation system with self-centering function provided by the invention, it is quick by its suspending gyrorotor sensing element
Feel component realization of the earth angular speed in sensitive axes and seek north.The magnetic levitation system includes：Solenoid coil, it is in round platform that its is hollow
Shape, there is magnetic as magnet for being produced after being energized, obtain the magnetic force of suspension；Iron core, its profile are in the circle with platform
Cylindricality, longitudinal section view are inShape,Shape or so is longer than middle, and length is more than about 1.2 times of the diameter of armature, iron coreIn shape
Between embedded solenoid coil, the magnetic field for being energized solenoid coil becomes a magnet after magnetizing, so and line solenoid
Circle magnetic field is overlapped mutually, so that the magnetic of solenoid coil greatly enhances, magnetic just disappears therewith after solenoid coil powers off；
Armature, its profile is spherical in shape, and size matches with iron core, for hanging the gyro sensitive element in north finder；Connection ring, its profile
The capping being open in annular, center one, size matches with armature, iron core, for connecting the gyro sensitive element in north finder
With armature.
As the improvement of the present invention, the armature will be suspended in iron core, the encirclement in iron core, can determine armature automatically
Present position center.
As the improvement of the present invention, the end that the armature is connected with the gyro sensitive element in north finder is in extending out
Mouthful it is horn-like, the armature is in spherical, and tapped on the flared end outer peripheral face, spherical armature is placed in the opening,
And screwed togather by connection ring and the end, so as to which the armature is fixedly connected on into gyro sensitive element upper end, and the armature upper half
Portion's protrusion connection ring exposes capping.
As the improvement of the present invention, the control of the hoverheight of the gyro sensitive element in the north finder is by being passed through
The electric current for stating solenoid coil in electromagnet is carried out.
The magnetic levitation system contour structures of the present invention are compact, assembling and convenient disassembly, can bear larger axial force, be reliable
Property it is high, environmental suitability is strong, solve metal gallus-type metal suspender belt and preferably deform or be broken；The bulky skill of air-flotation type sensing element
Art problem, while the harmful torque of suspension is also reduced, laid a good foundation to improve north finder precision.Therefore it is applied to high accuracy gyroscope
In north finder, there is preferable application value and promotion prospect.
Below in conjunction with drawings and examples, the present invention is further described.
Fig. 1 is the structure schematic cross-sectional view of one embodiment of the present of invention.As shown in figure 1, the magnetic suspension in the present embodiment
Device includes solenoid coil 1, iron core 2, armature 3, connection ring 4 and formed.Solenoid coil 1 is embedded in iron core 2 and fixed with glue, its
Control lead passes from the upper hole of iron core 2.Its profile of iron core 2 is in the cylinder with platform, and longitudinal section view is inShape,Shape is left
Right line is that pillar is more than about 1.2 times of the diameter of armature 3, iron core 2 than middle circle column length, lengthShape middle circle is embedded in
Solenoid coil, it is fixed on by support in north finder.The armature 3 will be suspended in iron core 2, the encirclement in iron core 2, place
In the underface of centered cylinder, armature 3 can be determined automatically and is in the center of iron core 2.
Armature 3 is used to hang sensing element 6 in north finder, make sensing element 6 be suspended in the centered cylinder of iron core 2 just under
Side.In the present embodiment, the end that preferably sensing element upper end is connected with armature 3 is to be filled in the loudspeaker of flaring out, and armature 3 is in ball
Shape, tapped on the flared end outer peripheral face, spherical armature 3 is placed in the opening.During connection, the center of connection ring 4 is set
The capping for being provided with through hole covers armature 3, and the capping internal face has internal thread, itself and with the outer spiral shell of sensing element upper end outer peripheral face
Line, which screws, compresses armature 3.The through hole bore of connection ring 4 is less than the diameter of armature 3 so that when compressing armature 3, the upper part of armature 3
It is outer to be exposed to capping.
Certainly, the connected mode not limited to this of the armature 3 in the present invention and sensing element, can also use other connection sides
Method, it is fixedly connected as long as can guarantee that.And the shape of armature 3 is not limited to spherical, can be selected according to specific connection type
With respective different shape.
In embodiments of the present invention, controlled by being passed through the electric current of solenoid coil 1 in the electromagnet in north finder
Gyro sensitive element 6 hoverheight 5.
In embodiments of the present invention, iron core 2, armature 3 are typically with the few material of remanent magnetism, such as magnetically soft alloy material, silicon steel.
In embodiments of the present invention, connection ring 4 is typically with the material without magnetic, such as nonmetallic materials nylon rod 1010.
During work, solenoid coil 1 forms electromagnet with iron core 2, and armature 3 is connected by connection ring 4 and gyro sensitive element
Connect.DC current I is passed through to solenoid coil 1, magnetic attraction F caused by electromagnet picks up armature 3 (i.e. sensing element)
Suspension is got up, and armature 3 does not contact with electromagnet during suspension, has certain air gap α between the two, air gap α is by changing solenoid
DC current I that coil 1 is passed through is controlled, and ensures that gyro sensitive element hoverheight is stable.
Calculated by equation below, you can obtain the gas between electromagnet suction and solenoid coil and iron core and armature
Gap.F=μ0(IW)2S/α……(1)；In formula：F is electromagnet magnetic attraction, μ0For the magnetic conductivity of vacuum, I is solenoid coil 1
The DC current being passed through, W are the solenoid coil number of turn, and S is the sectional area of air gap, and α is the height of air gap.
Whole magnetic levitation system size, solenoid coil number of turn etc. can according to the rotary inertia size of gyro motor and again
Amount, size specifically determine.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, all any modification, equivalent and improvement made within the spirit and principles of the invention etc., all should be included
Within protection scope of the present invention.
Claims (6)
1. a kind of magnetic levitation system with self-centering function, it is characterised in that the magnetic levitation system includes：
Solenoid coil (1), it is in truncated cone-shaped that its is hollow, for obtaining the magnetic force to suspend；
Iron core (2), its profile are in the cylinder with platform, and centre has a cylinder to be embedded in the solenoid coil, for being energized
Become a magnet after the magnetic field magnetization of solenoid coil, and be overlapped mutually with solenoid coil magnetic field, make solenoid coil
Magnetic enhancement, and magnetic just disappears therewith after solenoid coil powers off；
Armature (3), its profile is spherical in shape, for hanging the gyro sensitive element in north finder；And
Connection ring (4), its profile are in annular, and the capping that center one is open, covering internal face has internal thread, and north is sought for connecting
Gyro sensitive element and armature in instrument.
2. magnetic levitation system as claimed in claim 1, it is characterised in that the size of the armature (3) and the iron core (2) phase
Matching, size and the armature (3) and the iron core (2) of the connection ring (4) match.
3. magnetic levitation system as claimed in claim 1, it is characterised in that the armature (3) suspends in the iron core (2)
Inside is surrounded, the center of putting can be automatically positioned.
4. the magnetic levitation system as described in claim any one of 1-3, it is characterised in that the longitudinal section view of the iron core (2) is in
Shape,Shape or so is longer than middle, and the length of the iron core is equal to 1.2 times of the diameter of the armature (3).
5. the magnetic levitation system as described in claim any one of 1-3, it is characterised in that in the armature (3) and north finder
The end of gyro sensitive element connection is in the horn-like of flaring out, and screw thread, ball are provided with flared end outer peripheral face
Shape armature (3) is placed in the opening, and is screwed togather by connection ring (4) with the end, so as to which the armature (3) is fixedly connected on into top
Spiral shell sensing element upper end, and armature (3) first half protrusion connection ring (4) exposes capping.
6. according to the magnetic levitation system described in claim any one of 1-3, it is characterised in that by being passed through solenoid in electromagnet
The electric current of coil (1) controls the hoverheight of the gyro sensitive element in the north finder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610364679.1A CN105897063B (en) | 2016-05-27 | 2016-05-27 | A kind of magnetic levitation system with self-centering function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610364679.1A CN105897063B (en) | 2016-05-27 | 2016-05-27 | A kind of magnetic levitation system with self-centering function |
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| Publication Number | Publication Date |
|---|---|
| CN105897063A CN105897063A (en) | 2016-08-24 |
| CN105897063B true CN105897063B (en) | 2017-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610364679.1A Active CN105897063B (en) | 2016-05-27 | 2016-05-27 | A kind of magnetic levitation system with self-centering function |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3673706A (en) * | 1970-06-08 | 1972-07-04 | American Science & Eng | Demonstration compass |
| WO2010072917A1 (en) * | 2008-12-22 | 2010-07-01 | Sagem Defense Securite | Method for determining a heading in the direction of true north using an inertial measurement unit |
| CN201692628U (en) * | 2009-10-19 | 2011-01-05 | 张明德 | Multifunctional rotary gyro with compass and universal time rotary disc |
| CN102494679A (en) * | 2011-11-18 | 2012-06-13 | 中国科学院电工研究所 | Superconducting magnetic levitation based north-seeking device |
-
2016
- 2016-05-27 CN CN201610364679.1A patent/CN105897063B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3673706A (en) * | 1970-06-08 | 1972-07-04 | American Science & Eng | Demonstration compass |
| WO2010072917A1 (en) * | 2008-12-22 | 2010-07-01 | Sagem Defense Securite | Method for determining a heading in the direction of true north using an inertial measurement unit |
| CN201692628U (en) * | 2009-10-19 | 2011-01-05 | 张明德 | Multifunctional rotary gyro with compass and universal time rotary disc |
| CN102494679A (en) * | 2011-11-18 | 2012-06-13 | 中国科学院电工研究所 | Superconducting magnetic levitation based north-seeking device |
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| Publication number | Publication date |
|---|---|
| CN105897063A (en) | 2016-08-24 |
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