CN201974699U - Double optical wedge adjustment mechanism for laser communication coarse tracking system - Google Patents
Double optical wedge adjustment mechanism for laser communication coarse tracking system Download PDFInfo
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- CN201974699U CN201974699U CN2011200009864U CN201120000986U CN201974699U CN 201974699 U CN201974699 U CN 201974699U CN 2011200009864 U CN2011200009864 U CN 2011200009864U CN 201120000986 U CN201120000986 U CN 201120000986U CN 201974699 U CN201974699 U CN 201974699U
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- laser communication
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Abstract
The utility model discloses a double optical wedge adjustment mechanism for laser communication coarse tracking system, comprising two symmetrical optical wedge assemblies. Each optical wedge assembly is constructed in the way that: the optical wedge is embedded at the inner end of a hollow shaft; the optic axis of the optical wedge coincides with the axis line of the hollow shaft; the hollow shaft passes through the rotors of a DC moment motor and an angle coder and matches the radial interference with the rotors of DC moment motor and is fixed to the rotors of the angle coder; the hollow shaft is radially disposed in a casing by bearings; the stators of the DC moment motor and the angle coder are fixed on the casing and the casing of the two optical wedge assemblies are connected through locating seam allowance. The utility model enables the two round optical wedges to respectively arbitrarily rotate around the same axis, thus realizing the optical beam deflection of the double optical wedges, and can improve the adjustment precision accuracy of the double optical wedges and simplify the structure and reduce the volume, so the utility model can be used for space borne optical terminals, especially for the coarse tracking system of the empty space laser communication to realize the tracking within the tracking view field.
Description
Technical field
The utility model relates to the thick tracker of a kind of laser communication, is the two wedge adjusting gears in the thick tracker of a kind of laser communication specifically.
Background technology
Laser communication has advantages such as message capacity is big, transfer rate is high, good confidentiality, and is low in energy consumption, has become the developing direction of space communtication, has a good application prospect, and each country all pays much attention to the research to space optical communication.Because the factors such as motion of the less and laser communication terminal platform of the Communication ray angle of divergence make beam alignment have big difficulty, therefore, need catch, tracking, alignment system realize that light beam accurately aims at, wherein tracker is particularly important.Application number is that a Chinese utility application of 200510026553.5 discloses the scheme that a key name is called light-beam offset mechanic apparatus with double light wedges.This scheme realizes the interior among a small circle high-precision BEAM SQUINT of microradian magnitude by adjusting two wedges.The core ingredient of described light-beam offset mechanic apparatus with double light wedges is two wedges, sees shown in Figure 1ly, and two wedges can rotate around orthogonal axes respectively, adjust BEAM SQUINT with this.Wedge is glued in the picture frame, and linear stepping motor cooperates the driving picture frame that wedge is deflected with angular encoder.Because this scheme promotes two picture frames respectively around transverse axis, Z-axis deflection by the motor screw of linear stepping motor by gear train, and all there are inevitable intrinsic driving error in screw structure in the linear stepping motor and gear train, therefore, the adjustment of wedge deflection is inevitable also to exist error, descends thereby cause following the tracks of alignment precision; Simultaneously, this apparatus structure complexity, compact inadequately, volume is bigger, is not suitable for spaceborne fiber optic tracker.
The utility model content
Goal of the invention: in order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide the two wedge adjusting gears in the thick tracker of a kind of laser communication, it can make two coaxial difference of circular wedge rotate arbitrarily, realize two wedge beam deflections, can improve two wedges and adjust precision, simplified structure, reduce volume, thereby be suitable for spaceborne fiber optic, the thick tracker that is particularly useful for vacant lot laser communication is implemented in the tracking in the tracking field of view.
Technical scheme, in order to solve the problems of the technologies described above, the technical scheme that the utility model adopted is: the two wedge adjusting gears in the thick tracker of a kind of laser communication, constitute by two symmetrical wedge assemblies, each wedge assembly comprises housing, wedge, tubular shaft, the rotor of direct current torque motor, the angular encoder rotor, the direct current torque motor stator, the angular encoder stator, bearing, wedge is embedded in the inner inner end of tubular shaft, optical axis that described wedge is launched and tubular shaft dead in line, tubular shaft passes the angular encoder rotor successively, the rotor of direct current torque motor and tubular shaft and direct current torque motor rotor radial interference fit, tubular shaft and angular encoder rotor are affixed, tubular shaft is radially positioned in the housing by bearing, it is outer and be fixed on the housing that the direct current torque motor stator is enclosed within the rotor of direct current torque motor, the angular encoder stator is enclosed within outside the angular encoder rotor and is fixed on the housing, and the housing of two wedge assemblies connects by the positioning spigot structure.
Described wedge is by shaft shoulder location in the tubular shaft, and wedge is embedded in the inner inner end of tubular shaft with bonding mode, and two wedge inclined-planes are relative.
Also comprise sleeve, described direct current torque motor rotor is by the outer shaft shoulder of tubular shaft and sleeve axial location.
Described angular encoder rotor is by being bolted on the outer shaft shoulder of tubular shaft.
For tubular shaft is operated steadily reliably, described bearing has two and be arranged side by side.
Outer end at described tubular shaft also is provided with thread bush, the threaded engagement axial location tubular shaft of described thread bush and housing inboard.
Described housing is the magnalium housing.
Four jiaos of described housing are distributed with connecting hole, and bolt is fixed together by the housing of the inboard connecting hole of housing with two wedge assemblies.
Beneficial effect: compared with prior art, the utility model has the advantages that: wedge constitutes two wedge structures in two wedge assemblies, coaxial independent rotation, microradian magnitude high precision light beam departs from optically can realizing among a small circle equally, simultaneously, the employing of tubular shaft makes that two wedge light paths are unimpeded.And, with regard to direct current torque motor itself,, have the advantages that response is fast, the linearity is good, precision is high with respect to the linear stepping motor that prior art adopted.In addition, rotor by direct current torque motor directly drives tubular shaft and wedge rotation, between direct current torque motor rotor and wedge, there is not any mechanical transmission mechanism, just there is not any driving error yet, therefore, it is zero theoretically that the wedge rotary machine is adjusted error, follows the tracks of alignment precision and obviously improves.Based on this, the enlargement factor of laser communication tracker can be accomplished very high, makes tracker have higher speed and positional precision; On structure, the utility model structural symmetry, simple, number of components is few, distribution is compact, and whole device volume is little, therefore, is suitable for very much spaceborne fiber optic tracker.
Description of drawings
Fig. 1 is existing light-beam offset mechanic apparatus with double light wedges partial structurtes synoptic diagram;
Fig. 2 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 2, the two wedge adjusting gears in the thick tracker of laser communication described in the utility model are made of two symmetrical wedge assemblies.Each wedge assembly comprises rotor 3, angular encoder rotor 4, direct current torque motor stator 9, angular encoder stator 10, the bearing 6 of housing 7, wedge 1, tubular shaft 2, direct current torque motor, wedge 1 is by shaft shoulder location in the tubular shaft 2, wedge 1 is embedded in tubular shaft 2 inner inner ends with bonding mode and makes optical axis that wedge 1 launches and the dead in line of tubular shaft 2, promptly be coated with 661 tackifier and glued joint between wedge 1 periphery and tubular shaft 2 inwalls, two wedge 1 inclined-planes are relative.Wedge 1 directly is glued in the tubular shaft 2, can simplify physical construction first, alleviates mechanical hook-up weight; Second bonding mode is fit to various metals, nonmetallic materials, makes that tubular shaft selection leeway is bigger; The stress distribution of three welds is even, and the stress concentration phenomenon of having avoided modes such as riveting, weldering, bolt connection to exist reduces the wedge fixed stress, improves picture element; Four fundamental rules adopt bonding mode can obtain good sealing, insulation, anticorrosion effect; Five assembly technologies of simplifying wedge and tubular shaft.
It is outer and by being bolted on the housing 7 that direct current torque motor stator 9 is enclosed within the rotor 3 of direct current torque motor, and it is outer and and by being bolted on the housing 7 that angular encoder stator 10 is enclosed within angular encoder rotor 4.
Housing 7 materials are magnalium, to adapt to the permanent magnetic material in the direct current torque motor, have desirable strength simultaneously.The housing 7 of two wedge assemblies connects the accurate centering of guaranteeing two wedges 1 by the positioning spigot structure.Housing is distributed with connecting hole 11 for 7 four jiaos, is fixed together by the housing 7 of housing 7 inboard connecting holes 11 with two wedge assemblies by bolt.Realize being connected of two wedge assemblies and other parts by housing 7 outside connecting holes 11.
Claims (7)
1. two wedge adjusting gears in the thick tracker of laser communication, it is characterized in that, be made of two symmetrical wedge assemblies, each wedge assembly comprises rotor (3), angular encoder rotor (4), direct current torque motor stator (9), angular encoder stator (10), the bearing (6) of housing (7), wedge (1), tubular shaft (2), direct current torque motor; Wedge (1) is embedded in the inner inner end of tubular shaft (2), optical axis that described wedge (1) is launched and tubular shaft (2) dead in line; Tubular shaft (2) passes the rotor (3) of angular encoder rotor (4), direct current torque motor and tubular shaft (2) and direct current torque motor rotor (3) radial interference fit successively, tubular shaft (2) is affixed with angular encoder rotor (4), tubular shaft (2) is radially positioned in the housing (7) by bearing (6), it is outer and be fixed on the housing (7) that direct current torque motor stator (9) is enclosed within the rotor (3) of direct current torque motor, and it is outer and be fixed on the housing (7) that angular encoder stator (10) is enclosed within angular encoder rotor (4); The housing of two wedge assemblies (7) connects by the positioning spigot structure.
2. the two wedge adjusting gears in the thick tracker of a kind of laser communication according to claim 1, it is characterized in that, described wedge (1) is by the interior shaft shoulder of tubular shaft (2) location, and wedge (1) is embedded in the inner inner end of tubular shaft (2) with bonding mode, and two wedges (1) inclined-plane is relative.
3. the two wedge adjusting gears in the thick tracker of a kind of laser communication according to claim 1 is characterized in that, also comprise sleeve (5), and described direct current torque motor rotor (3) is by the outer shaft shoulder of tubular shaft (2) and sleeve (5) axial location.
4. the two wedge adjusting gears in the thick tracker of a kind of laser communication according to claim 1 is characterized in that, described angular encoder rotor (4) is by being bolted on the outer shaft shoulder of tubular shaft (2).
5. the two wedge adjusting gears in the thick tracker of a kind of laser communication according to claim 1 is characterized in that, described bearing (6) has two and be arranged side by side.
6. the two wedge adjusting gears in the thick tracker of a kind of laser communication according to claim 1, it is characterized in that, also be provided with thread bush (8) in the outer end of described tubular shaft (2), described thread bush (8) and the inboard threaded engagement axial location tubular shaft (2) of housing (7).
7. the two wedge adjusting gears in the thick tracker of a kind of laser communication according to claim 1, it is characterized in that, four jiaos of described housing (7) are distributed with connecting hole (11), and bolt is fixed together by the housing (7) of the inboard connecting hole of housing (7) (11) with two wedge assemblies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200009864U CN201974699U (en) | 2011-01-04 | 2011-01-04 | Double optical wedge adjustment mechanism for laser communication coarse tracking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200009864U CN201974699U (en) | 2011-01-04 | 2011-01-04 | Double optical wedge adjustment mechanism for laser communication coarse tracking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201974699U true CN201974699U (en) | 2011-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200009864U Expired - Fee Related CN201974699U (en) | 2011-01-04 | 2011-01-04 | Double optical wedge adjustment mechanism for laser communication coarse tracking system |
Country Status (1)
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| CN (1) | CN201974699U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319705A (en) * | 2015-12-02 | 2016-02-10 | 中国航空工业集团公司洛阳电光设备研究所 | Double-optical wedge scanning device and photoelectric detection equipment |
| CN105938246A (en) * | 2016-05-05 | 2016-09-14 | 上海交通大学 | Adjustable dual-optical-wedge laser scanning performing mechanism based on cantilever beam structure |
| CN106017330A (en) * | 2016-05-05 | 2016-10-12 | 上海交通大学 | Laser scanning mechanism based on rotating double optical wedge refraction technology |
| CN107703600A (en) * | 2017-11-14 | 2018-02-16 | 长春理工大学 | The coaxiality adjusting method and device of gyroaxis and optical axis based on double wedges |
| CN108008541A (en) * | 2017-10-25 | 2018-05-08 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of method of the double wedges of adjustment |
| CN114236714A (en) * | 2021-12-24 | 2022-03-25 | 网络通信与安全紫金山实验室 | Wireless optical communication receiving device and method based on light beam correction |
-
2011
- 2011-01-04 CN CN2011200009864U patent/CN201974699U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105319705A (en) * | 2015-12-02 | 2016-02-10 | 中国航空工业集团公司洛阳电光设备研究所 | Double-optical wedge scanning device and photoelectric detection equipment |
| CN105319705B (en) * | 2015-12-02 | 2018-06-26 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of double wedge scanning means and photoelectric detection equipment |
| CN105938246A (en) * | 2016-05-05 | 2016-09-14 | 上海交通大学 | Adjustable dual-optical-wedge laser scanning performing mechanism based on cantilever beam structure |
| CN106017330A (en) * | 2016-05-05 | 2016-10-12 | 上海交通大学 | Laser scanning mechanism based on rotating double optical wedge refraction technology |
| CN105938246B (en) * | 2016-05-05 | 2018-07-13 | 上海交通大学 | A kind of adjustable double wedge laser scanning actuators based on cantilever beam structure |
| CN106017330B (en) * | 2016-05-05 | 2018-09-14 | 上海交通大学 | A kind of laser scanning mechanism based on rotating double-optical wedge refractive technique |
| CN108008541A (en) * | 2017-10-25 | 2018-05-08 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of method of the double wedges of adjustment |
| CN108008541B (en) * | 2017-10-25 | 2020-07-10 | 中国航空工业集团公司洛阳电光设备研究所 | Method for installing and adjusting double optical wedges |
| CN107703600A (en) * | 2017-11-14 | 2018-02-16 | 长春理工大学 | The coaxiality adjusting method and device of gyroaxis and optical axis based on double wedges |
| CN114236714A (en) * | 2021-12-24 | 2022-03-25 | 网络通信与安全紫金山实验室 | Wireless optical communication receiving device and method based on light beam correction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20140104 |