CN110879058B - Closed-circuit magnetizing structure for stator magnetic steel of liquid floated gyroscope - Google Patents
Closed-circuit magnetizing structure for stator magnetic steel of liquid floated gyroscope Download PDFInfo
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- CN110879058B CN110879058B CN201911111144.3A CN201911111144A CN110879058B CN 110879058 B CN110879058 B CN 110879058B CN 201911111144 A CN201911111144 A CN 201911111144A CN 110879058 B CN110879058 B CN 110879058B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/02—Rotary gyroscopes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/02—Rotary gyroscopes
- G01C19/04—Details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/003—Methods and devices for magnetising permanent magnets
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention relates to a closed-circuit magnetizing structure for magnetic steel of a stator of a liquid floated gyroscope, which comprises a stator seat and the magnetic steel and is characterized in that: still include the propelling movement screw rod, the magnetic conduction magnetic circuit, expand mother, the expander, backstop piece and screw, the magnetic conduction magnetic circuit is the open cover tube shape in lower part, the propelling movement screw rod lower part stretches into to the inside cavity of magnetic conduction magnetic circuit, and with the top surface threaded connection of magnetic conduction magnetic circuit, the end screw thread suit expands mother under the propelling movement screw rod, at the female suit expander that expands, the expander lower part sets up the backstop piece, and the backstop piece passes through screw and propelling movement screw rod bottom mounting, at the outer suit stator seat of expander, the solid magnet steel of dress of stator seat bottom, the propelling movement screw rod rotates and realizes pulling stator seat and magnet steel into or the inside cavity of pushing magnetic conduction magnetic circuit. The invention is used for the closed-circuit magnetizing structure of the stator magnetic steel of the liquid floated gyroscope, and the magnetizing of the stator seat and the magnetic steel and the installation of the shell are all positioned in the magnetizing magnetic circuit, thereby greatly reducing the reduction of the magnetic field intensity of the stator caused by the change of the magnetic circuit.
Description
Technical Field
The invention belongs to the technical field of inertial measurement sensors, and particularly relates to a closed-circuit magnetizing structure for stator magnetic steel of a liquid-floated gyroscope, which has high precision, small volume and low cost.
Background
At present, no report about the maintenance of the soda gyroscope exists in China. This type of gyroscope involves a very severe indicator, i.e. the range of gyroscope scale factors, during maintenance. Therefore, the magnetic field intensity of the stator magnetic steel of the torquer cannot be lost too much in the maintenance process. However, the magnetic steel material of the stator of the liquid-floated gyroscope torquer is an alnico alloy, and the stator can be taken out of the gyroscope shell in the maintenance process, so that the magnetic circuit changes to reduce the magnetic field intensity of the stator magnetic steel, thereby causing the maintenance to be difficult to be carried out smoothly.
The current solution to this problem is to replace the completely new torquer stator magnetic steel, but still the problem of the reduction of the magnetic field intensity when the stator magnetic steel is taken out of the magnetizing machine cannot be avoided.
Therefore, aiming at the problem of reducing the magnetic field intensity of the stator magnetic steel, the closed-circuit magnetizing structure is designed, and the reduction of the magnetic field intensity of the stator caused by the change of a magnetic circuit is greatly reduced.
Disclosure of Invention
The invention aims to provide a magnetic steel closed-circuit magnetizing structure of a stator of a liquid floated gyroscope, which can reduce the loss of the stator caused by the change of a magnetic circuit, and according to theoretical calculation and related simulation, the magnetic field loss of the stator can be reduced by about 500 Gs.
The technical problem to be solved by the invention is realized by the following technical scheme:
the utility model provides a liquid floated gyroscope stator magnet steel closed circuit structure that magnetizes, includes stator seat and magnet steel, its characterized in that: the magnetic circuit is in a sleeve shape with an open lower part, the lower part of the pushing screw extends into the inner cavity of the magnetic circuit and is in threaded connection with the top surface of the magnetic circuit, the lower end of the pushing screw is sleeved with the expansion nut, the expansion ring is sleeved outside the expansion nut, the lower part of the expansion ring is provided with a stop piece, the stop piece is fixed to the bottom end of the pushing screw through the screw, the stator seat is sleeved outside the expansion ring, magnetic steel is fixedly installed at the bottom of the stator seat, and the pushing screw rotates to pull the stator seat and the magnetic steel into or push out the inner cavity of the magnetic circuit.
Furthermore, the magnetic conduction magnetic circuit is a 4J36 soft magnetic material magnetic conduction magnetic circuit.
And the inner cavity of the magnetic conduction magnetic circuit is in a step shape, and the inner diameter of the open end of the magnetic conduction magnetic circuit is larger than that of the closed end.
The invention has the advantages and beneficial effects that:
1. the invention relates to a closed magnetic steel magnetizing structure of a stator of a liquid-floated gyroscope, wherein a pushing screw is arranged on a magnetic conduction magnetic path in a threaded manner, firstly, the magnetic conduction magnetic circuit is assembled on the push screw, the push screw extends out of the magnetic conduction magnetic circuit to expose the expansion nut and the expansion ring, the stator seat is arranged on the expansion ring, the expansion nut is screwed in the reverse direction until the stator seat is firmly clamped, the magnetic steel is assembled on the stator seat, then the expansion nut is screwed to the top surface part in the magnetic conduction magnetic circuit through a pushing screw rod to complete the assembly of the stator seat and the magnetic steel, the whole closed circuit magnetizing structure is put into a magnetizing machine for magnetizing, then the shell of the stator is arranged in the magnetic conduction magnetic circuit, after the stator is assembled to the shell by utilizing the pushing screw rod, the expansion nut and the expansion ring are sequentially dismounted, the closed-circuit magnetizing structure is removed, the pushing screw is mainly used for pulling the stator seat and the magnetic steel into and out of the magnetic conduction magnetic circuit, and the expansion nut and the expansion ring are mainly used for clamping the stator seat.
2. The stator magnetic steel closed-circuit magnetizing structure of the liquid-floated gyroscope has the advantages that the magnetic conduction magnetic circuit is made of 4J36 soft magnetic materials, the magnetizing and stator seat, the magnetic steel and the shell are arranged in the magnetic conduction magnetic circuit, the magnetic field intensity loss of the stator is reduced by about 500Gs, and the assembly efficiency of the gyroscope is improved by 30%.
3. The invention relates to a closed magnetic steel magnetizing structure of a stator of a liquid floated gyroscope, wherein the inner cavity of a magnetic conduction magnetic circuit is in a step shape, and the inner diameter of an open end of the magnetic conduction magnetic circuit is larger than that of a closed end, so that the shell of the gyroscope is convenient to position and install.
4. The invention relates to a closed-circuit magnetizing structure for stator magnetic steel of a liquid-floated gyroscope, which utilizes an expansion nut, an expansion ring, a pushing screw rod and the like to realize clamping, positioning and pushing of a stator seat, and the magnetizing of the stator seat and the magnetic steel and the installation of a shell are all positioned in a magnetizing magnetic circuit, thereby greatly reducing the reduction of the magnetic field intensity of a stator caused by the change of the magnetic circuit.
Drawings
FIG. 1 is an assembly schematic diagram of a closed-circuit magnetizing structure of stator magnetic steel of a liquid floated gyroscope.
Description of the reference numerals
1-pushing a screw; 2-a magnetic conduction path; 3-expanded mother; 4-expanding a ring; 5-stopping sheet; 6-screw; 7-a stator seat; 8-magnetic steel.
Detailed Description
The present invention is further described in the following examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the invention.
As shown in fig. 1, a closed magnetic structure for stator magnetic steel of a liquid floated gyroscope, including a stator seat 7 and magnetic steel 8, and further including a push screw 1, a magnetic conduction magnetic circuit 2, an expansion nut 3, an expansion ring 4, a stop piece 5 and a screw 6, where the magnetic conduction magnetic circuit 2 is in a sleeve shape with an open lower portion, the lower portion of the push screw 1 extends into an internal cavity of the magnetic conduction magnetic circuit 2 and is in threaded connection with the top surface of the magnetic conduction magnetic circuit 2, the expansion nut 3 is sleeved on the lower end of the push screw 1, the expansion ring 4 is sleeved outside the expansion nut 3, the stop piece 5 is arranged on the lower portion of the expansion ring 4, the stop piece 5 is fixed to the bottom end of the push screw 1 through the screw 6, a stator seat 7 is sleeved outside the expansion ring 4, the magnetic steel 8 is fixedly installed at the bottom of the stator seat 7, and the push screw 1 rotates to pull the stator seat 7 and the magnetic steel 8 into or push out the internal cavity of the magnetic conduction magnetic circuit 2. The magnetic conduction magnetic circuit 2 is made of 4J36 soft magnetic materials and is a magnetic conduction magnetic circuit 2. The inner cavity of the magnetic conduction magnetic circuit 2 is in a step shape, and the inner diameter of the open end of the magnetic conduction magnetic circuit 2 is larger than that of the closed end.
The working principle of the invention is as follows:
the push screw 1 is installed on the magnetic conduction magnetic circuit 2 in a threaded mode, during assembly, the magnetic conduction magnetic circuit 2 is assembled on the push screw 1, the push screw 1 extends out of the magnetic conduction magnetic circuit 2, the expansion nut 3 and the expansion ring 4 are exposed, the stator seat 7 is installed on the expansion ring 4, the expansion nut 3 is screwed in the reverse direction until the stator seat 7 is firmly clamped, the magnetic steel 8 is assembled on the stator seat 7, the expansion nut 3 is screwed to the top face portion in the magnetic conduction magnetic circuit 2 through the push screw 1, assembly of the stator seat 7 and the magnetic steel 8 is completed, the whole closed-circuit magnetizing structure is placed into a magnetizing machine for magnetizing, then a shell of a stator is placed into the magnetic conduction magnetic circuit 2, after the stator is assembled to the shell through the push screw 1, the expansion nut 3 and the expansion ring 4 are sequentially detached, the magnetizing structure is removed, the push screw 1 mainly plays a role in pulling in and pushing out the stator seat 7 and the magnetic steel 8 from the magnetic conduction magnetic circuit 2, the expansion nut 3 and the expansion ring 4 mainly serve for clamping the stator seat 7. The magnetizing and the shell installation of the stator seat 7 and the magnetic steel 8 are all positioned in the magnetizing magnetic circuit 2, so that the reduction of the magnetic field intensity of the stator caused by the change of the magnetic circuit is greatly reduced.
Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and appended claims, and therefore, the scope of the invention is not limited to the disclosure of the embodiments and drawings.
Claims (3)
1. The utility model provides a liquid floated gyroscope stator magnet steel closed circuit structure that magnetizes, includes stator seat and magnet steel, its characterized in that: the magnetic circuit is in a sleeve shape with an opening at the lower part, the lower part of the pushing screw rod extends into an inner cavity of the magnetic circuit and is in threaded connection with the top surface of the magnetic circuit, the expanding nut is sleeved at the lower end of the pushing screw rod through threads, the expanding ring is sleeved outside the expanding nut, the stopping piece is arranged at the lower part of the expanding ring, the stopping piece is fixed with the bottom end of the pushing screw rod through the screw, a stator seat is sleeved outside the expanding ring, magnetic steel is fixedly arranged at the bottom of the stator seat, and the pushing screw rod rotates to pull or push the stator seat and the magnetic steel into or out of the inner cavity of the magnetic circuit;
the inner cavity of the magnetic conduction magnetic circuit is in a step shape, the inner diameter of an open end of the magnetic conduction magnetic circuit is larger than that of a closed end, a pushing screw is installed on the magnetic conduction magnetic circuit in a threaded mode, the magnetic conduction magnetic circuit is assembled on the pushing screw, the pushing screw extends out of the magnetic conduction magnetic circuit, a nut expander and an expanding ring are exposed, a stator seat is installed on the expanding ring, the nut expander is screwed in a reverse direction until the stator seat is firmly clamped, magnetic steel is assembled on the stator seat, the nut expander is screwed to the top face portion in the magnetic conduction magnetic circuit through the pushing screw to complete assembly of the stator seat and the magnetic steel, the whole closed-circuit magnetizing structure is placed into a magnetizing machine to be magnetized, then a shell of a stator is placed into the magnetic conduction magnetic circuit, the stator is assembled on the shell through the pushing screw, the nut expander and the expanding ring are sequentially dismounted, the closed-circuit magnetizing structure is removed, and the pushing screw mainly plays a role of pulling the stator seat and the magnetic steel into and out of the magnetic conduction magnetic circuit, the expansion nut and the expansion ring are mainly used for clamping the stator seat, and the magnetizing of the stator seat and the magnetic steel and the installation of the shell are all positioned in a magnetizing magnetic circuit.
2. The magnetic steel closed-circuit magnetizing structure for the stator of the liquid floated gyroscope according to claim 1, wherein the magnetic steel closed-circuit magnetizing structure comprises: the magnetic conduction magnetic circuit is a 4J36 soft magnetic material magnetic conduction magnetic circuit.
3. The magnetic steel closed-circuit magnetizing structure for the stator of the liquid floated gyroscope according to claim 1, wherein the magnetic steel closed-circuit magnetizing structure comprises: the inner cavity of the magnetic conduction magnetic circuit is in a step shape, and the inner diameter of the open end of the magnetic conduction magnetic circuit is larger than that of the closed end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911111144.3A CN110879058B (en) | 2019-11-14 | 2019-11-14 | Closed-circuit magnetizing structure for stator magnetic steel of liquid floated gyroscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911111144.3A CN110879058B (en) | 2019-11-14 | 2019-11-14 | Closed-circuit magnetizing structure for stator magnetic steel of liquid floated gyroscope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110879058A CN110879058A (en) | 2020-03-13 |
| CN110879058B true CN110879058B (en) | 2022-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911111144.3A Active CN110879058B (en) | 2019-11-14 | 2019-11-14 | Closed-circuit magnetizing structure for stator magnetic steel of liquid floated gyroscope |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112188768B (en) * | 2020-09-11 | 2021-12-31 | 中国船舶重工集团公司第七0七研究所 | Maintenance and disassembly method applied to liquid floating gyroscope |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB273932A (en) * | 1926-09-18 | 1927-07-14 | Messgeraete Boykow G M B H | Improvements in or relating to gyroscopes |
| KR100333988B1 (en) * | 1999-03-18 | 2002-04-26 | 구자홍 | device and method for automatic controlling of gauss and its direction |
| CN103346637B (en) * | 2013-06-24 | 2016-03-02 | 北京航天控制仪器研究所 | A kind of flexure gyroscope utilizing single coupling shaft bearing unit motor to form |
| CN103465552B (en) * | 2013-09-18 | 2016-07-20 | 安吉司润磁性材料有限公司 | A kind of magnetic rubber strip and production method thereof |
| CN105004333A (en) * | 2015-07-16 | 2015-10-28 | 陕西华燕航空仪表有限公司 | Miniature dynamically tuned gyroscope |
| US10371763B2 (en) * | 2015-07-17 | 2019-08-06 | Honeywell International Inc. | Systems and methods for low power magnetic field generation for atomic sensors using electro-permanent magnets |
| CN105336467B (en) * | 2015-11-16 | 2018-01-16 | 麦格雷博电子(深圳)有限公司 | Multipolar dynamo p-m rotor entirety magnetization method and device |
| CN205883015U (en) * | 2016-07-21 | 2017-01-11 | 中国船舶重工集团公司第七0七研究所 | Be applied to liquid floated gyroscope's magnetism interference suppression permanent magnetic force square ware |
| CN107372259A (en) * | 2017-08-10 | 2017-11-24 | 合肥学院 | The etting fixed mount of square truss-like net cage frame |
| CN107947514B (en) * | 2017-12-05 | 2019-09-13 | 中国船舶重工集团公司第七0七研究所 | A kind of flat limited angle torque motor |
| CN109004773A (en) * | 2018-09-12 | 2018-12-14 | 宁波安信数控技术有限公司 | A kind of magnetic steel structure |
| CN209329936U (en) * | 2018-09-21 | 2019-08-30 | 沈阳工业大学 | Using the synchronous motor of permanent magnetism auxiliary cage barrier rotors |
| CN109695770B (en) * | 2019-01-25 | 2020-08-14 | 北京控制工程研究所 | High-reliability miniature self-locking valve with simple structure |
| CN209374207U (en) * | 2019-02-25 | 2019-09-10 | 江苏先电机械有限公司 | A kind of stator magnetic shoe magnet charger |
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