CN104199475A - Spatially applied scanning drive device - Google Patents
Spatially applied scanning drive device Download PDFInfo
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- CN104199475A CN104199475A CN201410438343.6A CN201410438343A CN104199475A CN 104199475 A CN104199475 A CN 104199475A CN 201410438343 A CN201410438343 A CN 201410438343A CN 104199475 A CN104199475 A CN 104199475A
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- slip ring
- ring
- driving device
- scanning driving
- motor
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Abstract
The invention provides a spatially applied scanning drive device which comprises a pair of diagonal contact ball bearings (1), a motor (12), a circle induction synchronizer (3), a slip ring stationary ring (8) and a slip ring moving ring (9). The slip ring stationary ring (8) serves as a spindle of the scanning drive device and meanwhile is used for transferring data and power signals. Bearing seats for the diagonal contact ball bearings (1) are arranged at the upper end and the lower end of the slip ring moving ring (9), and the slip ring moving ring (9) is used for transferring data simultaneously. A slip ring, the spindle and the bearing seats are composited and integrated, so that the spatially applied scanning drive device is compact and simple in structure. The production cost is reduced, and meanwhile electromagnetic interference in the imaging process is avoided.
Description
Technical field
The present invention relates to electromechanical integration technology area, particularly a kind of scanning driving device in space application.
Background technology
Spacescan driving mechanism is the subsystem of the spaceborne scopes such as all types of remote sensing instruments, optical instrument.Spacescan driving mechanism is according to designing requirement campaign, output speed and moment of torsion, feedback movable information, transmitted power signal, control signal and observation data, with realize instrument system over the ground, to scanning observations such as skies.
Due to the singularity of space application, determine that spacescan driving mechanism possesses following characteristics:
(1) low speed: for ensureing the picture quality of instrument, should ensure that target has certain residence time in detector field of view, therefore sweep velocity is lower; (2) large inertia: the scanning bore of spaceborne observation instrument is conventionally larger, to ensure receiving enough energy on detector, has good observation resolution, thereby makes the moment of inertia of scanning mirror larger; (3) low-power consumption: due to the limited energy of space apparatus, should as far as possible reduce power consumption; (4) high reliability: space apparatus environment of living in is severe, and be difficult to maintenance, therefore scan driving mechanism will have high reliability; (5) high precision: scan driving mechanism has the quality of high precision guarantee image; (6) good environmental resistance: scan driving mechanism needs through complicated dynamics environment (as sinusoidal vibration, shock load, random vibration, noise impact etc.) before entering the orbit, for ensure still normally to work under space environment after it is entered the orbit, need scan driving mechanism to there is good environmental resistance, to adapt to a series of rugged surroundings tests.
Spacescan driving mechanism is developed so far, and has formed multiple technologies scheme, and has obtained successful application.But according to statistics, the fault of spacescan mechanism accounts for 60% of whole space apparatus faults, gordian technique and difficult technology that therefore existing spacescan driving mechanism is still space apparatus field.
As shown in Figure 1, be that success is at present at a kind of scan driving mechanism allocation plan of space application.This scheme belongs to direct driving, by pair of horns contact ball bearing 1 as the main load bearing of this mechanism, and be respectively equipped with top chock 6 and step 7 in the outside of this angular contact ball bearing 1, brushless dc torque motor 2 is as power source, round induction synchrometer 3 forms closed loop servo system as angle feedback element, is provided with conducting slip ring 4 and rotary transformer 5 as power signal and low frequency electric signal transmission element.The advantage of this scan driving mechanism is: 1) integrated level is high; 2) compact conformation; 3) motor direct-drive has increased system accuracy and reliability.But the shortcoming that this scan driving mechanism exists is: 1) due to its high integration, the Room that makes to coexist between motor winding and other components and parts, causes electromagnetic interference (EMI) if shield improper meeting, the quality of image instrument image and data; 2) adopt motor direct-drive scheme to make the accurate control of middle lower-speed state be difficult to realize, the range of speeds only can be limited within the scope of high speed; 3) adopt motor direct-drive scheme to make scan driving mechanism output torque limited, can not provide enough driving moments for the scan driving mechanism of large rotating inertia instrument and equipment.
Summary of the invention
The object of the invention is to, for solving the complex structure of existing scan driving mechanism, and make to be subject in measuring process electromagnetic interference (EMI) because integrated level is higher, and then the technical matters of the quality of reduction image instrument image and data, the present invention is directed to spacescan driving mechanism and proposed a kind of novel scanning driving device.This scanning driving device, by slip ring, main shaft and bearing seat Composite, integrated design, makes the structure of whole scanning driving device simpler and compact, has reduced production cost, the electromagnetic interference (EMI) in the imaging process of simultaneously avoiding.
For achieving the above object, the invention provides a kind of scanning driving device in space application, comprise pair of horns contact ball bearing, motor and round induction synchrometer, radial force and the axial force of described angular contact ball bearing for bearing scanning driving device, described round induction synchrometer rotates to control it for the angle-data measuring being fed back to motor, and described motor provides power for scanning driving device; Described scanning driving device also comprises slip ring stationary ring and slip ring rotating ring; Described slip ring stationary ring is as the main shaft of scanning driving device, simultaneously for transmitting data and power signal; The top and bottom of described slip ring rotating ring are equipped with a bearing seat for angular contact ball bearing, and this slip ring rotating ring is simultaneously for transmitting data.
As the further expansion of technique scheme, described scanning driving device also comprises pedestal, and described pedestal provides mounting platform for scanning driving device.
As the further expansion of technique scheme, bottom and the pedestal of described slip ring stationary ring are fixed, described motor is arranged at the outside of slip ring rotating ring, and this motor engages with the outer wall gear of slip ring rotating ring by the gear being provided with, and will move force and moment and pass to slip ring rotating ring.
As the further expansion of technique scheme, bottom and the pedestal of described slip ring rotating ring are fixed, described motor is arranged at the inner side of slip ring rotating ring, and this motor engages with the outer wall gear of slip ring stationary ring by the gear being provided with, and will move force and moment and pass to slip ring stationary ring.
As the further expansion of technique scheme, the top of described slip ring stationary ring is provided with axle and fastens lid, and this axle is fastened lid for seal angle contact ball bearing.
A kind of scanning driving device advantage in space application of the present invention is:
1) compact conformation, integrated level is high: scanning driving device of the present invention, by slip ring, main shaft and bearing seat Composite, integrated design, makes structure compacter and succinct;
2) significantly improved the Electro Magnetic Compatibility of device: by by the electric system independent slip ring outside that is placed in, scanning driving device main part is made up of passive electromagnetic elements such as slip ring stationary ring, slip ring rotating ring and round induction synchrometers, greatly reduce the problem that affects instrument system image and the quality of data due to electromagnetic interference (EMI), also greatly reduce the intractability of EMC problem simultaneously;
3) rotating speed output area is large, precision is high: motor will move force and moment by gear and pass to slip ring rotating ring or slip ring stationary ring, now only need to arrange corresponding ratio of gear and round induction synchrometer parameter, both can realize the slow-speed of revolution high precision control of scanning driving device, also can realize the high rotating speed high precision control of scanning driving device, there is larger flexibility than existing scan driving mechanism at rotating speed output facet;
4) torque output area is large: by changing ratio of gear, can conveniently realize the output of high moment of torsion, can overcome and directly drive class scheme and export torque limited shortcoming, be satisfied with the power requirement of the turntable driving of large space instrument.
Brief description of the drawings
Fig. 1 is a kind of existing driving mechanism structure schematic diagram for spacescan.
Fig. 2 is a kind of scanning driving device structural representation in space application in the embodiment of the present invention.
1, angular contact ball bearing 2, brushless dc torque motor 3, round induction synchrometer
4, conducting slip ring 5, rotary transformer 6, top chock
7, step 8, slip ring stationary ring 9, slip ring rotating ring
10, brush silk 11, pedestal 12, motor
13, gear 14, axle are fastened lid
Embodiment
Below in conjunction with drawings and Examples, a kind of scanning driving device in space application of the present invention is elaborated.
As shown in Figure 2, a kind of scanning driving device in space application of the present invention, comprise: slip ring stationary ring 8, angular contact ball bearing 1, slip ring rotating ring 9, motor 12, round induction synchrometer 3, described angular contact ball bearing 1 is for bearing radial force and the axial force of scanning driving device, the primary load bearing bearing that it is a whole set of scanning driving device; Described round induction synchrometer 3 is as measurement of angle and the feedback element of scanning driving device, it rotates to control it for the angle-data measuring being fed back to motor 12, and this round induction synchrometer 3 is realized the closed loop servo control of scanning driving device together with motor 12.Described motor 12 provides power for scanning driving device; Stator and the main shaft of described slip ring stationary ring 8 to slip ring carried out composite design, makes the main shaft that this slip ring stationary ring 8 is scanning driving device, can be used in again and transmits data and power signal; Rotor and the bearing seat of described slip ring rotating ring 9 to slip ring carried out composite design, the top and bottom of this slip ring rotating ring 9 are equipped with a bearing seat for angular contact ball bearing 1, rotor and the bearing seat function of slip ring are united two into one, this slip ring rotating ring 9 is the bearing seat of scanning driving device, can realize again the data propagation function of slip ring rotating ring 9.
The data-signal that described slip ring stationary ring 8 and slip ring rotating ring 9 transmit is mainly showed the scanning control signal that observation instrument sends and is scanned the science data that observation instrument is passed back, and described power signal mainly refers to scan the needed electric energy of the normal work of observation instrument.
Based on the structure of above-mentioned scanning driving device, described scanning driving device also can comprise pedestal, and described pedestal, for scanning driving device provides basic installed surface and support structure, is the frame of a whole set of scanning driving device.As shown in Figure 2, the bottom of described slip ring stationary ring 8 and pedestal 11 are fixing in the present embodiment, and described motor 12 is arranged at the outside of slip ring rotating ring 9, and this motor 12 engages with the outer wall gear of slip ring rotating ring 9 by the gear 13 being provided with.Motor 12 and slip ring stationary ring 8 are all arranged on pedestal 11, and slip ring stationary ring 8 forms axle system with slip ring rotating ring 9.Now, can be provided with gear 13 that transmission gear is provided with motor 12 output shafts by slip ring rotating ring 9 engages and transmits motion; And motion and moment are passed to slip ring rotating ring 9, realize speed and the moment output of regulation.Described transmission gear and slip ring rotating ring 9 can be structure as a whole, can direct integrated processing in practical operation between the two, and also can process respectively, then be connected with modes such as finger settings by screw.
As shown in Figure 2, the top of described slip ring stationary ring 8 is equipped with axle and fastens and cover 14, and described axle is fastened and covered 14 for seal angle contact ball bearing 1; This axle is fastened and is covered 14 upper surfaces that can be fixed by screws in slip ring rotating ring 9, so that the inside of whole scanning driving device is in closed state.
In addition, the bottom of described slip ring rotating ring also can be fixed with pedestal, and described motor is arranged at the inner side of slip ring rotating ring, and this motor engages with the outer wall gear of slip ring stationary ring by the gear being provided with, and will move force and moment and pass to slip ring stationary ring.
Based on the structure of above-mentioned scanning driving device, can be by speed reduction unit being set to increase speed adjustable range and moment output area in motor 12; Meanwhile, by adopting the motor of different size and slip ring rotating ring 9 or slip ring stationary ring 8 to adapt to different operating mode demands.Motor in the present invention provides two kinds of connected modes, be connected with pedestal by slip ring rotating ring on the one hand, then the gear that motor is provided with engages with the outer wall of slip ring stationary ring, can realize motion and the power stage of slip ring stationary ring; On the other hand, be connected with pedestal by slip ring stationary ring, slip ring rotating ring is installed transmission gear, then the gear being provided with motor engages, and can realize motion and the power stage of slip ring rotating ring; Now, described transmission gear and the surface of motor reducer all can adopt worm and gear mode to arrange, to facilitate the self-locking that realizes scanning driving device.
Utilize scanning driving device as shown in Figure 2 to carry out the specific operation process of work as described below:
Described motor 12 is as system dynamic source output torque and rotating speed, and by the power of output by gear transmission to slip ring rotating ring 9; Scanning observation instrument is arranged on slip ring rotating ring 9, in the time that slip ring rotating ring 9 rotates according to setting motion, has just driven scanning observation instrument to complete scanning motion simultaneously.The scanning needed electronic control signal of observation instrument and power supply signal transmit by slip ring rotating ring 9, and the science data that scanning observation instrument obtains are also transmitted back control desk by slip ring rotating ring 9.Now, the motion control of scanning driving device realizes by angle feedback element, by round induction synchrometer 3 by motion measurement result feedback to control desk, control desk is controlled motor 12 according to measurement result and is exported, thereby regulates scanning observation motion.
In sum, the present invention---at the scanning driving device of space application, its compact conformation, there is higher level of integrated system and complete high precision closed loop servo-control system, can meet the scanning observation requirements of all types of space instruments, have broad application prospects and huge using value.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described.Although the present invention is had been described in detail with reference to embodiment, those of ordinary skill in the art is to be understood that, technical scheme of the present invention is modified or is equal to replacement, do not depart from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (5)
1. the scanning driving device in space application, comprise pair of horns contact ball bearing (1), motor (12) and round induction synchrometer (3), described angular contact ball bearing (1) is for bearing radial force and the axial force of scanning driving device, described round induction synchrometer (3) rotates to control it for the angle-data measuring being fed back to motor (12), and described motor (12) provides power for scanning driving device; It is characterized in that, described scanning driving device also comprises slip ring stationary ring (8) and slip ring rotating ring (9); Described slip ring stationary ring (8) is as the main shaft of scanning driving device, simultaneously for transmitting data and power signal; The top and bottom of described slip ring rotating ring (9) are equipped with a bearing seat for angular contact ball bearing (1), and this slip ring rotating ring (9) is simultaneously for transmitting data.
2. the scanning driving device in space application according to claim 1, is characterized in that, described scanning driving device also comprises pedestal, and described pedestal provides mounting platform for scanning driving device.
3. the scanning driving device in space application according to claim 2, it is characterized in that, the bottom of described slip ring stationary ring (8) and pedestal (11) are fixing, described motor (12) is arranged at the outside of slip ring rotating ring (9), this motor (12) engages with the outer wall gear of slip ring rotating ring (9) by the gear (13) being provided with, and will move force and moment and pass to slip ring rotating ring (9).
4. the scanning driving device in space application according to claim 2, it is characterized in that, the bottom of described slip ring rotating ring (9) and pedestal (11) are fixing, described motor (12) is arranged at the inner side of slip ring rotating ring (9), this motor (12) engages with the outer wall gear of slip ring stationary ring (8) by the gear (13) being provided with, and will move force and moment and pass to slip ring stationary ring (8).
5. the scanning driving device in space application according to claim 1, it is characterized in that, the top of described slip ring stationary ring (8) is equipped with axle and fastens lid (14), and this axle is fastened lid (14) for seal angle contact ball bearing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410438343.6A CN104199475A (en) | 2014-08-29 | 2014-08-29 | Spatially applied scanning drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410438343.6A CN104199475A (en) | 2014-08-29 | 2014-08-29 | Spatially applied scanning drive device |
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| CN104199475A true CN104199475A (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410438343.6A Pending CN104199475A (en) | 2014-08-29 | 2014-08-29 | Spatially applied scanning drive device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160323A (en) * | 2016-06-23 | 2016-11-23 | 北京空间机电研究所 | A kind of high-precision finite angle formula axle system device |
| CN106530931A (en) * | 2016-11-30 | 2017-03-22 | 上海卫星工程研究所 | Large-inertia low-speed scanning driving control demonstration verification system |
| CN111613897A (en) * | 2020-06-22 | 2020-09-01 | 上海宇航系统工程研究所 | Central hole 360 degree rotating antenna pointing mechanism |
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|---|---|---|---|---|
| DE3324468A1 (en) * | 1983-07-07 | 1985-01-17 | Krull, Gerhard, 4803 Steinhagen | Sealed rolling contact bearing, especially for water pumps in motor vehicles |
| CN104335694B (en) * | 2008-12-16 | 2013-03-13 | 上海宇航系统工程研究所 | One can back up formula solar cell array actuating device |
| CN103344253A (en) * | 2013-06-24 | 2013-10-09 | 中国航空工业集团公司北京长城计量测试技术研究所 | Multi-axis motion simulation rotary table |
| CN103715581A (en) * | 2014-01-07 | 2014-04-09 | 山东大学 | TBM-mounted integrated junction device of advance geological detection instrument |
| CN103944029A (en) * | 2014-04-30 | 2014-07-23 | 北京航天控制仪器研究所 | Support-signal transfer integrated shaft system |
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2014
- 2014-08-29 CN CN201410438343.6A patent/CN104199475A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3324468A1 (en) * | 1983-07-07 | 1985-01-17 | Krull, Gerhard, 4803 Steinhagen | Sealed rolling contact bearing, especially for water pumps in motor vehicles |
| CN104335694B (en) * | 2008-12-16 | 2013-03-13 | 上海宇航系统工程研究所 | One can back up formula solar cell array actuating device |
| CN103344253A (en) * | 2013-06-24 | 2013-10-09 | 中国航空工业集团公司北京长城计量测试技术研究所 | Multi-axis motion simulation rotary table |
| CN103715581A (en) * | 2014-01-07 | 2014-04-09 | 山东大学 | TBM-mounted integrated junction device of advance geological detection instrument |
| CN103944029A (en) * | 2014-04-30 | 2014-07-23 | 北京航天控制仪器研究所 | Support-signal transfer integrated shaft system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160323A (en) * | 2016-06-23 | 2016-11-23 | 北京空间机电研究所 | A kind of high-precision finite angle formula axle system device |
| CN106160323B (en) * | 2016-06-23 | 2018-06-01 | 北京空间机电研究所 | A kind of high-precision finite angle formula shafting device |
| CN106530931A (en) * | 2016-11-30 | 2017-03-22 | 上海卫星工程研究所 | Large-inertia low-speed scanning driving control demonstration verification system |
| CN111613897A (en) * | 2020-06-22 | 2020-09-01 | 上海宇航系统工程研究所 | Central hole 360 degree rotating antenna pointing mechanism |
| CN111613897B (en) * | 2020-06-22 | 2021-07-06 | 上海宇航系统工程研究所 | Central hole 360 degree rotating antenna pointing mechanism |
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Application publication date: 20141210 |
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