CN104991569B - A kind of arc guide rail space camera bias current adjustment mechanism - Google Patents
A kind of arc guide rail space camera bias current adjustment mechanism Download PDFInfo
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- CN104991569B CN104991569B CN201510267340.5A CN201510267340A CN104991569B CN 104991569 B CN104991569 B CN 104991569B CN 201510267340 A CN201510267340 A CN 201510267340A CN 104991569 B CN104991569 B CN 104991569B
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- arc guide
- bias current
- guide rail
- adjusting support
- pinboard
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Abstract
A kind of arc guide rail space camera bias current adjustment mechanism belongs to drift angle of space camera adjustment technology field, it is therefore intended that solve the problem of prior art has light-baffling phenomena.The present invention includes bias current adjusting support, drive component, pinboard and focal plane electronic box component；Two sections of arc guide rails are fixed with the bias current adjusting support, every section of arc guide rail is provided with two sliding blocks that can be on arc guide rail slidably, and the sliding block is fixedly connected with pinboard, and pinboard is fixedly connected with focal plane electronic box component；The drive component is fixed on the bias current adjusting support, drives pinboard is relative on the arc guide rail to slide by the drive component, and then realize that focal plane electronic box component is rotated around the centre of gyration.A kind of arc guide rail space camera bias current adjustment mechanism of the present invention employs two sections of symmetrical 60 ° of arc guide rails, avoids space camera system light path, efficiently solves bearing shafting and the problem of dense ball bearing shafting is in the light.
Description
Technical field
The invention belongs to drift angle of space camera adjustment technology field, and in particular to a kind of arc guide rail space camera bias current
Adjustment mechanism.
Background technology
At present, space camera bias current adjustment mechanism uses bearing shafting structure or dense ball bearing shafting structure mostly.Photoelectricity work
Journey the 6th phase in 2012 describes a kind of space optical camera bias current adjusting mechanism design, specifically discloses a kind of bearing shafting tuningout
Flow mechanism；Changchun University of Science and Technology's journal natural science edition the 2nd phase in 2011 describes a kind of high-precision spatial camera image shift compensation
Mechanism is designed with testing, and specifically discloses a kind of dense ball bearing shafting bias current adjustment mechanism.Above two bias current adjustment mechanism is used
Whole coil structures are used as rotary axis system.Due to being constrained by light path, the present invention is according to above-mentioned bearing shafting or dense ball bearing shafting
There is light-baffling phenomena in whole coil structures.For these reasons, it is necessary to develop a kind of new space camera bias current adjustment mechanism.
The content of the invention
It is an object of the invention to propose a kind of arc guide rail space camera bias current adjustment mechanism, solve prior art and exist
The problem of light-baffling phenomena.
To achieve the above object, a kind of arc guide rail space camera bias current adjustment mechanism of the invention includes bias current adjusting branch
Frame, drive component, pinboard and focal plane electronic box component；
Two sections of arc guide rails are fixed with the bias current adjusting support, every section of arc guide rail can be led provided with two in circular arc
Sliding block on rail slidably, the sliding block is fixedly connected with pinboard, and pinboard is fixedly connected with focal plane electronic box component；It is described
Drive component is fixed on the bias current adjusting support, by the drive component drive pinboard on the arc guide rail it is relative
Slide, and then realize that focal plane electronic box component is rotated around the centre of gyration.
The drive component includes stepper motor, worm screw, power transmission shaft, eccentric wheel, worm screw case, worm gear, shaft coupling and coding
Device；The stepper motor output shaft is connected by shaft coupling with worm screw, and the worm gear is fixed with the power transmission shaft by alignment pin
Connection, the worm and gear engagement；Encoder output is connected by shaft coupling with power transmission shaft one end；The power transmission shaft other end
It is connected through the bias current adjusting support by alignment pin with eccentric wheel, the eccentric wheel turns in the chute on the pinboard
It is dynamic.
The power transmission shaft is connected with the bias current adjusting support by angular contact bearing, and described angular contact bearing one end is by adjusting
Bias current support is spacing, and the other end is compressed by bearing cap.
Encoder is fixed on worm screw case by encoder support.
Bias current adjusting support positions shoulder and adjustment block provided with arc guide rail, and the positioning shoulder is located at the arc guide rail
Inner side, adjustment block is arranged on the outside of the arc guide rail.
The arc guide rail is 60 ° of arc guide rails, and two sections of arc guide rails are arranged symmetrically on the bias current adjusting support,
The arc guide rail is fixed on the bias current adjusting support by attachment screw.
Beneficial effects of the present invention are：Stepping electricity in a kind of arc guide rail space camera bias current adjustment mechanism of the present invention
Machine exports staring torque, drives worm and wormwheel to rotate by shaft coupling, and worm gear motion passes to eccentric wheel by power transmission shaft so that
Eccentric wheel is rotated in pinboard chute, so as to drive focal plane electronic box component to be rotated around the centre of gyration, finally realizes space phase
The purpose of machine bias current adjustment, encoder is connected by shaft coupling with power transmission shaft, can detect eccentric wheel rotational angle；Pass through coding
The feedback signal control stepper motor of device is rotated, so as to realize closed-loop control.
A kind of arc guide rail space camera bias current adjustment mechanism of the present invention is as a result of two sections of symmetrical 60 ° of circles
Arc guide rail, avoids space camera system light path, efficiently solves bearing shafting and the problem of dense ball bearing shafting is in the light；Circular arc is led
Rail is simple in construction, spatial volume is small so that bias current adjustment mechanism overall dimensions are greatly reduced.Arc guide rail sliding block steel ball is applied
Precompressed, can eliminate gap, improve the rigidity of sliding block.Faced in addition, employing similar angular contact bearing inside arc guide rail
The contact structure of face combination, possesses outstanding error absorbability, can effectively reduce to arc guide rail mounting plane precision
Requirement.
Brief description of the drawings
Fig. 1 is a kind of arc guide rail space camera bias current adjustment mechanism front view sectional view of the invention；
Fig. 2 conceals the left view after focal plane electronic box component for a kind of arc guide rail space camera bias current adjustment mechanism of the present invention
Figure；
Fig. 3 is a kind of side view of arc guide rail space camera bias current adjustment mechanism of the present invention；
Fig. 4 is drive component front view sectional view in a kind of arc guide rail space camera bias current adjustment mechanism of the present invention；
Wherein：1st, bias current adjusting support, 2, drive component, 201, stepper motor, 202, worm screw, 203, power transmission shaft, 204, axle
Hold lid, 205, eccentric wheel, 206, angular contact bearing, 207, worm screw case, 208, worm gear, 209, encoder support, 210, shaft coupling,
211st, encoder, 3, pinboard, 4, focal plane electronic box component, 5, adjustment block, 6, arc guide rail, 7, sliding block, 8, ray regions.
Embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
Referring to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3 and accompanying drawing 4, a kind of arc guide rail space camera bias current adjustment mechanism of the invention
Including bias current adjusting support 1, drive component 2, pinboard 3 and focal plane electronic box component 4；
Two sections of arc guide rails 6 are fixed with the bias current adjusting support 1, every section of arc guide rail 6 can be in circle provided with two
Sliding block 7 on arc guide rail 6 slidably, the sliding block 7 is fixedly connected with pinboard 3, and pinboard 3 is consolidated with focal plane electronic box component 4
Fixed connection；The drive component 2 is fixed on the bias current adjusting support 1, and pinboard 3 is driven in institute by the drive component 2
Relative slip on arc guide rail 6 is stated, and then realizes that focal plane electronic box component 4 is rotated around the centre of gyration.
The drive component 2 includes stepper motor 201, worm screw 202, power transmission shaft 203, eccentric wheel 205, worm screw case 207, snail
Wheel 208, shaft coupling 210 and encoder 211；The stepper motor 201 is fixed by soket head cap screw with worm screw case 207, described
The output shaft of stepper motor 201 is connected by shaft coupling 210 with worm screw 202, and it is fixed that the worm gear 208 passes through with the power transmission shaft 203
Position pin is fixedly connected, and the worm screw 202 of worm gear 208 engages；The output end of encoder 211 passes through shaft coupling 210 and power transmission shaft 203 1
End connection；The other end of power transmission shaft 203 is connected through the bias current adjusting support 1 by alignment pin with eccentric wheel 205, described inclined
Heart wheel 205 is rotated in the chute on the pinboard 3.
The power transmission shaft 203 is connected with the bias current adjusting support 1 by angular contact bearing 206, the angular contact bearing 206
One end is spacing by bias current adjusting support 1, and the other end is compressed by bearing cap 204.
Encoder 211 is overall after being fixed by soket head cap screw with encoder support 209 to be connected with worm screw case 207.
Bias current adjusting support 1 positions shoulder and adjustment block 5 provided with arc guide rail 6, and the positioning shoulder is located at the circular arc
The inner side of guide rail 6, adjustment block 5 is arranged on the outside of the arc guide rail 6, and the inner side of arc guide rail 6 is adjusted by the adjustment block 5
It is brought into close contact with the positioning shoulder.
The arc guide rail 6 is 60 ° of arc guide rails, and two sections of arc guide rails 6 are arranged symmetrically in the bias current adjusting support 1
On, the arc guide rail 6 is fixed on the bias current adjusting support 1 by attachment screw.
The inner chamber of bias current adjusting support 1 and bottom are dotted line position in ray regions 8, figure, have light to pass through, bias current adjusting
Two sections of 60 ° of arc guide rails 6 being arranged symmetrically on support 1 are so that rotary axis system avoids ray regions 8.Set on bias current adjusting support 1
There is positioning shoulder, the inner surface of arc guide rail 6 and shoulder can be caused by the position for changing holding screw in eight adjustment blocks 5
It is brought into close contact, so as to ensure the positional precision of arc guide rail 6；Four sliding blocks 7 are had on two sections of arc guide rails 6, pinboard 3 passes through
Soket head cap screw is fixed with sliding block 7, therefore sliding block 7 can drive pinboard 3 to be slided along arc guide rail 6；Focal plane electronic box component 4 with
Pinboard 3 is fixedly connected, and may finally realize that focal plane electronic box component 4 is rotated around the centre of gyration.
The structure material selection of the present invention mitigates weight as far as possible under the premise of mechanical performance is ensured, bias current adjusting support 1,
Pinboard 3, adjustment block 5, bearing cap 204, worm screw case 207 and encoder support 209 are less from better mechanical property, density
Aluminum alloy materials；Drive disk assembly worm screw 202, power transmission shaft 203 and eccentric wheel 205 select the preferable 40Cr materials of anti-wear performance；Snail
Wheel 208 selects tin bronze material.
It is above the embodiment of the present invention, but limitation of the present invention absolutely not, it is any in the scope of the present invention
The improvement or equivalence replacement inside done belong to protection scope of the present invention.
Claims (5)
1. a kind of arc guide rail space camera bias current adjustment mechanism, it is characterised in that including bias current adjusting support (1), drive component
(2), pinboard (3) and focal plane electronic box component (4)；
It is fixed with two sections of arc guide rails (6) on the bias current adjusting support (1), every section of arc guide rail (6) can be provided with two
Sliding block (7) on arc guide rail (6) slidably, the sliding block (7) is fixedly connected with pinboard (3), pinboard (3) and focal plane
Electronic box component (4) is fixedly connected；The drive component (2) is fixed on the bias current adjusting support (1), passes through the drive component
(2) driving pinboard (3) is relative on the arc guide rail (6) slides, and then realizes focal plane electronic box component (4) in revolution
The heart is rotated；
The drive component (2) includes stepper motor (201), worm screw (202), power transmission shaft (203), eccentric wheel (205), worm screw case
(207), worm gear (208), shaft coupling (210) and encoder (211)；Stepper motor (201) output shaft passes through shaft coupling
(210) it is connected with worm screw (202), the worm gear (208) is fixedly connected with the power transmission shaft (203) by alignment pin, the snail
Take turns (208) worm screw (202) engagement；Encoder (211) output end is connected by shaft coupling (210) with power transmission shaft (203) one end；Institute
State power transmission shaft (203) other end to be connected with eccentric wheel (205) by alignment pin through the bias current adjusting support (1), the bias
Take turns in the chute of (205) on the pinboard (3) and rotate.
2. a kind of arc guide rail space camera bias current adjustment mechanism according to claim 1, it is characterised in that the circular arc
Guide rail (6) is 60 ° of arc guide rails, and two sections of arc guide rails (6) are arranged symmetrically on the bias current adjusting support (1), the circle
Arc guide rail (6) is fixed on the bias current adjusting support (1) by attachment screw.
3. a kind of arc guide rail space camera bias current adjustment mechanism according to claim 1, it is characterised in that the transmission
Axle (203) is connected with the bias current adjusting support (1) by angular contact bearing (206), and described angular contact bearing (206) one end passes through
Bias current adjusting support (1) is spacing, and the other end is compressed by bearing cap (204).
4. a kind of arc guide rail space camera bias current adjustment mechanism according to claim 1, it is characterised in that encoder
(211) it is fixed on by encoder support (209) on worm screw case (207).
5. a kind of arc guide rail space camera bias current adjustment mechanism according to claim 1, it is characterised in that the tuningout
Flow support (1) and position shoulder and adjustment block (5) provided with arc guide rail (6), the positioning shoulder is located at the arc guide rail (6)
Inner side, adjustment block (5) is arranged on the outside of the arc guide rail (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510267340.5A CN104991569B (en) | 2015-05-22 | 2015-05-22 | A kind of arc guide rail space camera bias current adjustment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510267340.5A CN104991569B (en) | 2015-05-22 | 2015-05-22 | A kind of arc guide rail space camera bias current adjustment mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104991569A CN104991569A (en) | 2015-10-21 |
| CN104991569B true CN104991569B (en) | 2017-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510267340.5A Expired - Fee Related CN104991569B (en) | 2015-05-22 | 2015-05-22 | A kind of arc guide rail space camera bias current adjustment mechanism |
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| CN (1) | CN104991569B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527690B (en) * | 2016-01-28 | 2017-09-01 | 长光卫星技术有限公司 | A kind of two-dimentional executing agency of integration adjusted applied to space optical camera focal plane |
| CN106596032A (en) * | 2016-12-21 | 2017-04-26 | 中国燃气涡轮研究院 | Variable Mach number nozzle mechanism having large-stroke range and high precision |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5421096A (en) * | 1993-08-17 | 1995-06-06 | Safco Corporation | Gear driven alidade assembly |
| CN101893901A (en) * | 2010-07-13 | 2010-11-24 | 中国科学院长春光学精密机械与物理研究所 | System for periodically and continuously regulating drift angle of space camera |
| CN102156340A (en) * | 2011-03-31 | 2011-08-17 | 哈尔滨工业大学 | High-precision pose adjusting device for spliced grating |
| CN103292791A (en) * | 2013-06-17 | 2013-09-11 | 中国航天科工集团第三研究院第八三五八研究所 | Visible light imaging image motion compensation device adapting to high-speed flight platform |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3354735B2 (en) * | 1995-01-25 | 2002-12-09 | 三菱重工業株式会社 | Seaming roll adjustment device for can seamers |
-
2015
- 2015-05-22 CN CN201510267340.5A patent/CN104991569B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5421096A (en) * | 1993-08-17 | 1995-06-06 | Safco Corporation | Gear driven alidade assembly |
| CN101893901A (en) * | 2010-07-13 | 2010-11-24 | 中国科学院长春光学精密机械与物理研究所 | System for periodically and continuously regulating drift angle of space camera |
| CN102156340A (en) * | 2011-03-31 | 2011-08-17 | 哈尔滨工业大学 | High-precision pose adjusting device for spliced grating |
| CN103292791A (en) * | 2013-06-17 | 2013-09-11 | 中国航天科工集团第三研究院第八三五八研究所 | Visible light imaging image motion compensation device adapting to high-speed flight platform |
Non-Patent Citations (1)
| Title |
|---|
| 高精度空间相机像移补偿机构设计与试验;谷松等;《长春理工大学学报（自然科学版）》;20110630;第34卷(第2期);期刊第1-2页 * |
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