CN208171237U - A kind of high-accuracy circular dividing device of two-dimensional pointing mechanism - Google Patents
A kind of high-accuracy circular dividing device of two-dimensional pointing mechanism Download PDFInfo
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- CN208171237U CN208171237U CN201820789773.6U CN201820789773U CN208171237U CN 208171237 U CN208171237 U CN 208171237U CN 201820789773 U CN201820789773 U CN 201820789773U CN 208171237 U CN208171237 U CN 208171237U
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- worm screw
- worm
- worm gear
- gap
- disappears
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Abstract
A kind of high-accuracy circular dividing device of two-dimensional pointing mechanism, it includes worm screw main driving mechanism and worm gear rotation angle positioning two parts；The worm screw main driving mechanism includes combining worm screw by the gap that disappears certainly, being mounted on the close-loop driven control shafting that azimuth axle driving motor, azimuth axle angular transducer from the gap combination worm screw both ends that disappear collectively constitute；The worm gear rotation angle positioning then pushes away combination bearing by worm gear, diameter and sense of rotation mechanism forms, wherein the worm gear and sense of rotation mechanism are connected, push away combination bearing by diameter and is supported in pedestal, it is characterised in that：The described gap combination worm screw that disappears certainly includes fixed worm screw, the movable worm screw for being mounted on by stop nut, spring, connecting key, adjustment gasket fixed worm screw optical axis end.
Description
Technical field
The utility model relates to a kind of high-accuracy circular dividing devices of two-dimensional pointing mechanism, are optical instrument, servo control
Commonly used a kind of accurate indexing mechanism in system, is widely used in the accurate of lunar exploration, deep space exploration instrument and solar energy sailboard
The accurate positioning of direction and national defence weapon sighting system.
Background technique
Directing mechanism is that the deep space explorations such as solar energy sailboard in deep space exploration, optical detecting gear, device for signalling are set
Important swing mechanism, is related to the safe and reliable operation of entire detector in standby.Wherein, big retarding is than few no return difference worm gear snail
Bar pair is directed in mechanism common circumferential precision rotating device, mostly uses double lead structure designs in the past, but in mars exploration
In task, since the working environment temperature difference is big（-130℃~70℃）, bearing direction require it is higher, be difficult to meet mission requirements, need
Further exploitation adapts to different operating conditions, has the novel circumferential precision dividing apparatus of revolution sideshake self-adjusting function.
Summary of the invention
The purpose of this utility model is precisely in order to the one kind for meeting the needs of deep space exploration detection mission, and developing has certainly
The gap that disappears function worm couple precision rotating positioning device.
The purpose of this utility model can be realized by following technical measures：
The two-dimensional pointing mechanism of the utility model includes worm screw main driving mechanism and worm gear with high-accuracy circular dividing device
Rotate angle positioning two parts；The worm screw main driving mechanism includes combining worm screw by the gap that disappears certainly, being mounted on from the gap group that disappears
Close the close-loop driven control shafting that azimuth axle driving motor, the azimuth axle angular transducer at worm screw both ends collectively constitute；Institute
State worm gear rotation angle positioning and combination bearing then pushed away by worm gear, diameter and sense of rotation mechanism forms, wherein the worm gear and
Sense of rotation mechanism is connected, and pushes away combination bearing by diameter and is supported in pedestal；The described gap combination worm screw that disappears certainly include fixed worm screw,
The movable worm screw at fixed worm screw optical axis end is mounted on by stop nut, spring, connecting key, adjustment gasket.
Worm screw main driving mechanism described in the utility model and worm gear rotate the two-part worm and gear of angle positioning
Pair forms bilateral gapless spatial conjugation meshing relation, to form transmission ratio 80:1（Large speed ratio）Circumferential precision rotating indexing dress
It sets.
Furtherly, the gap that disappears certainly combines worm and wheel contact surface and forms spatial conjugation Meshing Pair, forms azimuth axle and drives
Dynamic motor driven --- the gap that disappears certainly combines worm-gears large speed ratio（Transmission ratio 80:1）Reduction of speed --- sense of rotation mechanism is accurate
The driving form of indexing；Meanwhile azimuth axle angular transducer forms measurement feedback unit, it is common with azimuth axle driving motor
Closed-loop control system is formed, can realize the essence that rotates in a circumferential direction of two-dimensional pointing mechanism in terms of mechanical construction and control system two
Determine position.
Certainly the gap combination worm screw that disappears is made of nut, spring, movable worm screw, adjustment gasket and fixed worm screw, worm gear
Worm gear pair can promote spring and adjustment by the regulation of nut since design, manufacture, assembly, the temperature difference are formed by variable sideshake
Gasket generates corresponding deformation, and formation activity worm screw is matched with the axial trace movement of sideshake amount relative to fixed worm screw, eliminates
Since sideshake is formed by return difference in counter motion, the precise treatment of sense of rotation transmission mechanism is realized.
Azimuth axle driving motor and azimuth axle angle in Control System Design, positioned at the gap combination worm screw both ends that disappear certainly
It spends sensor and forms closed-loop control system, in the course of work, azimuth axle angular transducer is anti-as the measurement in control system
Unit is presented, the practical rotation angle of worm couple is constantly fed back into controller, controller passes through setting value and actual value
It relatively handles in real time, revision directive is constantly issued to azimuth axle driving motor, realizes the precise treatment of sense of rotation electric-control system.
The positive and negative rotation of worm couple measures feedback processing unit from disappear gap design and control system in mechanical system
Amendment adjustment in real time, realizes the high-accuracy circular dividing of directing mechanism jointly.
The beneficial effects of the utility model are as follows：
Due to the pre- tight integration worm structure design of double section worm screws that the utility model uses in mechanical structure, control system
On also form closed-loop control, can effectively avoid influence of the manufacture rigging error to return difference in deflecting motion process, set in function
On meter, multi-state adapts to the big mission requirements of mars exploration variation of ambient temperature, be China's mars exploration and be higher level on
Deep space exploration provides a kind of suitable high-accuracy circular dividing device.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model（Perspective view）.
Serial number in Fig. 1：1-- worm gear, 2-shells, 3-azimuth axle driving motors, 4-transparent covers, 5-deep groove ball bearings,
6-disappear gap combination worm screw certainly, 7-pedestals, and 8-diameters push away combination bearing, 9-main shafts, 10-angular contact ball bearings, 11-transparent covers,
12-azimuth axle angular transducers.
Fig. 2 is in Fig. 1 from the sectional view for the gap combination worm screw that disappears.
Serial number in Fig. 2：6-1-stop nut, 6-2-spring, 6-3-segmentation worm screw, 6-4-connecting key, 6-5-adjustment
Pad, 6-6-worm screw.
Specific embodiment
The utility model is below with reference to example（Attached drawing）It is described further：
As depicted in figs. 1 and 2, the two-dimensional pointing mechanism of the utility model includes worm screw master with high-accuracy circular dividing device
Driving mechanism and worm gear rotate angle positioning two parts；The worm screw main driving mechanism include combined by the gap that disappears certainly worm screw 6,
It is mounted on from what azimuth axle driving motor 3, the azimuth axle angular transducer 12 that the gap that disappears combines worm screw both ends collectively constituted and closes
Ring drive control shafting；The worm gear rotation angle positioning then pushes away combination bearing 8 and sense of rotation mechanism by worm gear 1, diameter
Composition pushes away combination bearing 8 by diameter and is supported in pedestal wherein the worm gear 1 and sense of rotation mechanism are connected；Worm screw main driving machine
Structure and the two-part worm couple of worm gear rotation angle positioning form bilateral gapless spatial conjugation meshing relation, thus
Form transmission ratio 80:1（Large speed ratio）Circumferential precision rotating indexing means；It is described from the gap combination worm screw that disappears include fixed worm screw 6-6,
The movable snail at fixed worm screw 6-6 optical axis end is mounted on by stop nut 6-1, spring 6-2, connecting key 6-4, adjustment gasket 6-5
Bar 6-3.
Main shaft 9 and worm gear 1 are connected with, and pedestal 7 and shell 2 are connected by screw bolts, 8 inner ring of diameter thrust bearing and main shaft 9
Slight interference cooperation, 2 transition fit of 8 outer ring of diameter thrust bearing and shell；Diameter thrust bearing 8 plays main shaft 9 and axially and radially limits.
Furtherly, the gap that disappears certainly combines worm and wheel contact surface and forms spatial conjugation Meshing Pair, forms azimuth axle and drives
Dynamic motor driven --- the gap that disappears certainly combines worm-gears large speed ratio（Transmission ratio 80:1）Reduction of speed --- sense of rotation mechanism is accurate
The driving form of indexing；Meanwhile azimuth axle angular transducer forms measurement feedback unit, it is common with azimuth axle driving motor
Closed-loop control system is formed, can realize the essence that rotates in a circumferential direction of two-dimensional pointing mechanism in terms of mechanical construction and control system two
Determine position.
Certainly the gap combination worm screw that disappears is made of nut, spring, movable worm screw, adjustment gasket and fixed worm screw, worm gear
Worm gear pair can promote spring and adjustment by the regulation of nut since design, manufacture, assembly, the temperature difference are formed by variable sideshake
Gasket generates corresponding deformation, and formation activity worm screw is matched with the axial trace movement of sideshake amount relative to fixed worm screw, eliminates
Since sideshake is formed by return difference in counter motion, the precise treatment of sense of rotation transmission mechanism is realized.
Azimuth axle driving motor and azimuth axle angle in Control System Design, positioned at the gap combination worm screw both ends that disappear certainly
It spends sensor and forms closed-loop control system, in the course of work, azimuth axle angular transducer is anti-as the measurement in control system
Unit is presented, the practical rotation angle of worm couple is constantly fed back into controller, controller passes through setting value and actual value
It relatively handles in real time, revision directive is constantly issued to azimuth axle driving motor, realizes the precise treatment of sense of rotation electric-control system.
The positive and negative rotation of worm couple measures feedback processing unit from disappear gap design and control system in mechanical system
Amendment adjustment in real time, realizes the high-accuracy circular dividing of directing mechanism jointly.
The specific work process of the utility model is as follows：
Azimuth axle driving motor drives from the gap combination worm screw rotation that disappears, and the gap that disappears certainly combines the contact surface shape of worm and wheel
At spatial conjugation meshing relation, thus realize that worm gear drives the circumferential precision indexing of sense of rotation mechanism, during the work time, side
Position shafting angular transducer constantly measures the rotation angle for the gap combination worm screw that disappears certainly, and is constantly compared with setting value
Judgement adjusts the precision positioning, it can be achieved that sense of rotation mechanism circular dividing by constantly correcting；Especially needed explanation is
It is always to obstruct the bottleneck for improving sense of rotation MECHANISM PRECISION that worm couple, which inevitably manufactures rigging error, this is practical new
The worm screw of type is designed using double section worm screw pre-pressing structures, in the course of work, by the regulation of nut, promotes spring and adjustment gasket
Corresponding deformation is generated, formation activity worm screw is matched with the axial trace movement of sideshake amount relative to fixed worm screw, eliminates anti-
Into movement since sideshake is formed by return difference, the precise treatment of transmission mechanism hardware is realized.
Claims (2)
1. a kind of high-accuracy circular dividing device of two-dimensional pointing mechanism, it includes worm screw main driving mechanism and worm gear rotation angle
Positioning mechanism two parts；The worm screw main driving mechanism includes combining worm screw by the gap that disappears certainly, being mounted on from the gap combination worm screw two that disappears
The close-loop driven that azimuth axle driving motor, the azimuth axle angular transducer at end collectively constitute controls shafting；The worm gear rotation
Gyration positioning mechanism then pushes away combination bearing by worm gear, diameter and sense of rotation mechanism forms, wherein the worm gear and sense of rotation
Mechanism is connected, and pushes away combination bearing by diameter and is supported in pedestal, it is characterised in that：Certainly the gap combination worm screw that disappears includes fixed snail
Bar, the movable worm screw that fixed worm screw optical axis end is mounted on by stop nut, spring, connecting key, adjustment gasket.
2. the high-accuracy circular dividing device of two-dimensional pointing mechanism according to claim 1, it is characterised in that：The main drive of worm screw
Motivation structure and the two-part worm couple of worm gear rotation angle positioning form bilateral gapless spatial conjugation meshing relation,
To form transmission ratio 80:1 circumferential precision rotating indexing means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820789773.6U CN208171237U (en) | 2018-05-25 | 2018-05-25 | A kind of high-accuracy circular dividing device of two-dimensional pointing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820789773.6U CN208171237U (en) | 2018-05-25 | 2018-05-25 | A kind of high-accuracy circular dividing device of two-dimensional pointing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208171237U true CN208171237U (en) | 2018-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820789773.6U Expired - Fee Related CN208171237U (en) | 2018-05-25 | 2018-05-25 | A kind of high-accuracy circular dividing device of two-dimensional pointing mechanism |
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| Country | Link |
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| CN (1) | CN208171237U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413924A (en) * | 2018-05-25 | 2018-08-17 | 郑州机械研究所有限公司 | A kind of high-accuracy circular dividing device of two-dimensional pointing mechanism |
-
2018
- 2018-05-25 CN CN201820789773.6U patent/CN208171237U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413924A (en) * | 2018-05-25 | 2018-08-17 | 郑州机械研究所有限公司 | A kind of high-accuracy circular dividing device of two-dimensional pointing mechanism |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181130 Termination date: 20190525 |
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| CF01 | Termination of patent right due to non-payment of annual fee |