CN103994758A - Indexing mechanism of two-position flexible gyroscope north finder - Google Patents
Indexing mechanism of two-position flexible gyroscope north finder Download PDFInfo
- Publication number
- CN103994758A CN103994758A CN201410212339.8A CN201410212339A CN103994758A CN 103994758 A CN103994758 A CN 103994758A CN 201410212339 A CN201410212339 A CN 201410212339A CN 103994758 A CN103994758 A CN 103994758A
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- combination
- shell
- indexing mechanism
- location
- bearing
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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
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention provides an indexing mechanism of a two-position flexible gyroscope north finder. The indexing mechanism mainly comprises a positioning pin, a turning table body combination, an upper end cover positioning combination, a shell, a turning motor and a bearing support. The positioning pin is pressed into the upper end of the turning table body combination to form an integrated component which is arranged in the shell, and the upper end cover positioning combination is connected with the upper end of the shell through threads and matched with the integrated component through a bearing. A moment motor is arranged at the lower end of the integrated component, and the bearing support is connected with the lower end of the shell through threads and matched with the integrated component by a bearing. The indexing mechanism has the characteristics of being small in size, high in turning precision and repeated positioning accuracy, and the like, and a driving control circuit is simple.
Description
Technical field
The invention belongs to inertial navigation set technical field, be specifically related to a kind of two positions flexible gyroscope and seek the indexing mechanism of northern instrument, dwindled the volume of seeking northern instrument, alleviated weight, improve stability and the repeatability of seeking northern instrument indexing mechanism.
Background technology
Gyroscope north searching instrument is the directed instrument based on inertial technology, orientation accuracy is higher, and Measuring Time is short, can realize all weather operations, at any time and place (except high latitude area) can independently measure, be easy to realize self-orientation and motor-driven use.Be mainly used in the Military and civil fields aspects such as land vehicle navigation, gun laying transmitting.In gyroscope north searching instrument when work, needs its stage body to rotate, on two positions of 180 ° of being separated by by its data of computer acquisition.Moment gyroscope is sought northern instrument and is adopted rotary electric machine to pass through the array mode such as speed reduction unit mechanism and rotary transformer or photoelectric code disk more, or the mode that adopts transmission gear to add turbine and scroll bar forms indexing mechanism.Its Design of Mechanical Structure complexity, parts use more, thereby cause gyroscope north searching instrument bulky, can not make full use of the finite space in gyroscope north searching instrument, have limited its use on vehicle.
Summary of the invention
The technical matters that the present invention solves: provide a kind of two positions flexible gyroscope to seek the indexing mechanism of northern instrument, solve moment gyroscope and seek northern instrument Design of Mechanical Structure complexity, parts use more, thereby cause bulky, can not make full use of the finite space in gyroscope north searching instrument, limit a difficult problem for its use on vehicle.
The technical solution used in the present invention: a kind of two positions flexible gyroscope is sought the indexing mechanism of northern instrument, comprise register pin, the combination of rotation stage body, upper end cover location combination, shell, rotary electric machine, bearing spider, described rotation stage body combination comprises upper inner ring and lower inner ring, and be fixed on the flexible gyroscope of upper inner ring and lower inner ring inside, rotating stage body combination can unitary rotation; Described register pin is fixed on and rotates stage body combination upper end, with unitary rotation parts of its formation, unitary rotation parts are cased, the location combination of described upper end cover is threaded with shell upper end, the combination of upper end cover location coordinates with unitary rotation parts by bearing, the combination of upper end cover location is made up of upper end cover and location-plate, limits the turned position of register pin by location-plate between 0 to 180 degree; Described rotary electric machine is arranged on the lower end of unitary rotation parts, and bearing spider is threaded with shell lower end, and bearing spider and unitary rotation parts pass through bearing fit.
The present invention's advantage compared with prior art:
1, rotary electric machine uses the driving element of brushless D. C. torque motor as rotating mechanism, has removed complicated driving control system, has simplified Drive and Control Circuit;
2, indexing mechanism adopts 180 ° of location of register pin to locate with the control of computer program control circuit the method combining, and has improved the transposition precision and the precision that repeats transposition of indexing mechanism;
3, the volume of this indexing mechanism is little, and structural design is simple, compact, rationally utilizes space, thereby has reduced to seek cumulative volume and the weight of northern instrument.
Brief description of the drawings
Fig. 1 is to be structural representation of the present invention;
Fig. 2 is rotation stage body unitized construction schematic diagram of the present invention;
Fig. 3 is bearing spider structural representation of the present invention;
Fig. 4 is positioning combination structure schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing 1-4, a kind of embodiment of the present invention is described.
Fig. 1 is cut-away view of the present invention, and indexing mechanism is mainly made up of register pin 1, rotation stage body combination 4, upper end cover location combination 2, shell 3, rotary electric machine 5, bearing spider 6.This indexing mechanism is combined as main shaft to rotate stage body, and register pin is pressed into and rotates unitary rotation parts of stage body combination upper end formation.These unitary rotation parts are cased, and the upper end of unitary rotation parts coordinates with the combination of upper end cover location by bearing, between bearing and rotatable parts upper end, comes adjusting play with adjustment pad; The combination of upper end cover location is connected with shell by screw, holds out against bearing by compressing adjustment pad after threaded together.Match with the rotor of rotary electric machine in rotatable parts lower end, rotary electric machine is brushless D. C. torque motor, and rotary electric machine stator is arranged on shell, and rotor is arranged on and rotates on stage body.Rotatable parts lower end coordinates with bearing spider by bearing, between bearing and rotatable parts lower end, come adjusting play with adjustment pad, between bearing spider and shell, hold out against bearing by compressing adjustment pad after screw-driving screw thread, so just formed a complete indexing mechanism.
Fig. 2 rotates stage body combination assumption diagram, it comprises upper inner ring 7 and lower inner ring 8, and inner flexible gyroscope, upper lower inner ring has adopted magnetically soft alloy material making, to flexible gyroscope, magnetic shielding plays a role, on the ring flange of lower inner ring, have six mounting holes, be connected with upper inner ring by screw, rotating stage body combination can unitary rotation.
Fig. 3 is bearing spider structural drawing, and bearing spider is adjusted pad and held out against bearing by coordinating with shell to be screwed into compress after screw, plays supporting role to rotating stage body combination.
Fig. 4 is positioning combination structure figure, and location combination is made up of location-plate 9 and upper end cover 10.Location-plate is connected to form a combiner by screw and upper end cover, has ensured the position location of 180 degree on Design of Mechanical Structure.
The course of work of indexing mechanism of the present invention is: after indexing mechanism powers on, computer program control circuit control position rotaring motor drives and rotates stage body combination rotation, make the register pin rotating in stage body combination be close to any one side in location combination, this position is primary importance (0 ° of position), in these station acquisition data; After collection finishes, computer program control circuit control rotary electric machine drives the combination of rotation stage body to turn to the second place (180 ° of positions) image data.In location combination, location-plate and upper end cover is engaged in the accurate location that has ensured 180 ° of register pins on Design of Mechanical Structure.Clash into consumingly register pin in order to shorten index time and don't to produce, computer program has adopted change step pitch stepping control mode, by walking greatly the step that diminishes gradually, the register pin that steadily allows from fast to slow relies on the location-plate in the combination of location, has realized the quick, steady of transposition.
Above-described embodiment, is preferred embodiment of the present invention, is not used for limiting the scope of the present invention, and the equivalence of being done with content described in the claims in the present invention therefore all changes, within all should being included in the claims in the present invention scope.
Claims (1)
1. a two positions flexible gyroscope is sought the indexing mechanism of northern instrument, it is characterized in that: comprise register pin (1), rotation stage body combination (4), the combination of upper end cover location (2), shell (3), rotary electric machine (5), bearing spider (6), described rotation stage body combination (4) comprises upper inner ring (7) and lower inner ring (8), and be fixed on the inner flexible gyroscope of upper inner ring (7) and lower inner ring (8), rotating stage body combination (4) can unitary rotation; Described register pin (1) is fixed on and rotates stage body combination (4) upper end, with unitary rotation parts of its formation, unitary rotation parts are contained in shell (3), described upper end cover location combination (2) is threaded with shell (3) upper end, upper end cover location combination (2) coordinates with unitary rotation parts by bearing, upper end cover location combination (2) is made up of upper end cover (10) and location-plate (9), and the turned position that limits register pin (1) by location-plate (9) is between 0 to 180 degree; Described rotary electric machine (5) is arranged on the lower end of unitary rotation parts, and bearing spider (6) is threaded with shell (3) lower end, and bearing spider (6) passes through bearing fit with unitary rotation parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212339.8A CN103994758A (en) | 2014-05-19 | 2014-05-19 | Indexing mechanism of two-position flexible gyroscope north finder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212339.8A CN103994758A (en) | 2014-05-19 | 2014-05-19 | Indexing mechanism of two-position flexible gyroscope north finder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103994758A true CN103994758A (en) | 2014-08-20 |
Family
ID=51308990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410212339.8A Pending CN103994758A (en) | 2014-05-19 | 2014-05-19 | Indexing mechanism of two-position flexible gyroscope north finder |
Country Status (1)
| Country | Link |
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| CN (1) | CN103994758A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567844A (en) * | 2014-12-26 | 2015-04-29 | 北京兴华机械厂 | Manual turning two-position north seeker |
| WO2021109666A1 (en) * | 2019-12-03 | 2021-06-10 | 安方高科电磁安全技术(北京)有限公司 | Total station shielding system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3677097A (en) * | 1971-03-05 | 1972-07-18 | Sperry Rand Corp | Protective stops for a flexure suspended gyroscopic rotor |
| US4020701A (en) * | 1974-07-16 | 1977-05-03 | Ferranti, Limited | Gyroscopic apparatus |
| US4499778A (en) * | 1981-02-03 | 1985-02-19 | Northrop Corporation | Flexure mount assembly for a dynamically tuned gyroscope and method of manufacturing same |
| CN2059735U (en) * | 1989-07-11 | 1990-07-25 | 航空航天工业部第二三二厂 | Proportion quick-definiting device |
| CN101173857A (en) * | 2007-11-27 | 2008-05-07 | 北京航空航天大学 | Principal shaft mechanism of two-position north seeker |
| CN201334904Y (en) * | 2009-01-07 | 2009-10-28 | 贵州航天控制技术有限公司 | Indexing mechanism |
| CN102324798A (en) * | 2011-09-01 | 2012-01-18 | 中国航空工业第六一八研究所 | Upper end cover assembly of flexible strapdown gyroscope |
| CN202194651U (en) * | 2011-07-21 | 2012-04-18 | 西安思坦仪器股份有限公司 | Two-position north finder indexing mechanism |
| CN203132553U (en) * | 2013-03-26 | 2013-08-14 | 安徽全信精工装备有限公司 | Compact north finder |
| CN203375970U (en) * | 2013-08-09 | 2014-01-01 | 张盛 | Transferring device capable of transferring to any position and gyro north seeker |
-
2014
- 2014-05-19 CN CN201410212339.8A patent/CN103994758A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3677097A (en) * | 1971-03-05 | 1972-07-18 | Sperry Rand Corp | Protective stops for a flexure suspended gyroscopic rotor |
| US4020701A (en) * | 1974-07-16 | 1977-05-03 | Ferranti, Limited | Gyroscopic apparatus |
| US4499778A (en) * | 1981-02-03 | 1985-02-19 | Northrop Corporation | Flexure mount assembly for a dynamically tuned gyroscope and method of manufacturing same |
| CN2059735U (en) * | 1989-07-11 | 1990-07-25 | 航空航天工业部第二三二厂 | Proportion quick-definiting device |
| CN101173857A (en) * | 2007-11-27 | 2008-05-07 | 北京航空航天大学 | Principal shaft mechanism of two-position north seeker |
| CN201334904Y (en) * | 2009-01-07 | 2009-10-28 | 贵州航天控制技术有限公司 | Indexing mechanism |
| CN202194651U (en) * | 2011-07-21 | 2012-04-18 | 西安思坦仪器股份有限公司 | Two-position north finder indexing mechanism |
| CN102324798A (en) * | 2011-09-01 | 2012-01-18 | 中国航空工业第六一八研究所 | Upper end cover assembly of flexible strapdown gyroscope |
| CN203132553U (en) * | 2013-03-26 | 2013-08-14 | 安徽全信精工装备有限公司 | Compact north finder |
| CN203375970U (en) * | 2013-08-09 | 2014-01-01 | 张盛 | Transferring device capable of transferring to any position and gyro north seeker |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567844A (en) * | 2014-12-26 | 2015-04-29 | 北京兴华机械厂 | Manual turning two-position north seeker |
| WO2021109666A1 (en) * | 2019-12-03 | 2021-06-10 | 安方高科电磁安全技术(北京)有限公司 | Total station shielding system |
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Application publication date: 20140820 |