CN107422453A - Lever torque compensation mechanism for large caliber reflecting mirror - Google Patents
Lever torque compensation mechanism for large caliber reflecting mirror Download PDFInfo
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- CN107422453A CN107422453A CN201710431139.5A CN201710431139A CN107422453A CN 107422453 A CN107422453 A CN 107422453A CN 201710431139 A CN201710431139 A CN 201710431139A CN 107422453 A CN107422453 A CN 107422453A
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- pouring weight
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- output end
- balancing
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
- G02B7/183—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors specially adapted for very large mirrors, e.g. for astronomy, or solar concentrators
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- Life Sciences & Earth Sciences (AREA)
- Astronomy & Astrophysics (AREA)
- Sustainable Development (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Telescopes (AREA)
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Abstract
Lever torque compensation mechanism for large caliber reflecting mirror, it is related to ground large aperture telescope speculum mounting technique field, existing ground large aperture telescope lateral support is solved not cause eccentric moment and limited bulk occur on principal reflection mirror barycenter face the problems such as, the present invention provides axial power output using lever principle in principal reflection mirror excircle, realizes the torque compensation of principal reflection mirror；When principal reflection mirror optical axis is vertical, eccentric moment is not present in principal reflection mirror, and input pouring weight is located on central rotating shaft, provides input power by self-balancing pouring weight, power output is used for balance output end, the gravity of output end grip block；When optical axis is when between horizontal and vertical, power output balance output end, the gravity of output end grip block of self-balancing pouring weight, the power output of input pouring weight are used to balance eccentric force.Simple in construction, compact and adjustment of the invention is simple.
Description
Technical field
The present invention relates to ground large aperture telescope speculum mounting technique field, and in particular to one kind is applied to heavy caliber
Speculum lateral support not on barycenter face in the case of torque compensation mechanism.
Background technology
With the continuous increase of photoelectricity ground telescope bore, the weight of principal reflection mirror also increases therewith, causes support system
The increase of weight of uniting and cost.Therefore general ground large aperture telescope use the light-weighted form of principal reflection mirror reduce itself with
And support system weight and cost.But principal reflection mirror lightweight can also make mirror structure complexity, profile various, so as to collateral
The design increase difficulty of support system.
The collateral support main method of large-scale astronomical telescope principal reflection mirror has at present：, can be 1. when bulk allows
Principal reflection mirror central supported；2., can be in principal reflection when principal reflection mirror barycenter face is in principal reflection mirror behind and bulk permission
Mirror uses supported at three point behind, and the plane that the strong point is formed is principal reflection mirror barycenter face；3. when bulk allows, main anti-
Mirror centre bore inward flange is penetrated plus the support on principal reflection mirror edge, the matter made a concerted effort by principal reflection mirror of each collateral support of the strong point
Heart face；4. axially also there is collateral support at multiple strong points simultaneously at the principal reflection mirror back side, each collateral support force is made a concerted effort by main anti-
Penetrate mirror barycenter face；5. when side supporting surface is by principal reflection mirror barycenter, only can make a concerted effort in principal reflection mirror outer edge thereof, support
Pass through principal reflection mirror barycenter face.
For ground large aperture telescope, because principal reflection mirror is relatively large in diameter, it is impossible to using method 1 and method 2；For one
A little collateral supports can not be for the principal reflection mirror by barycenter face, and method 3 does not apply to simultaneously；For looking in the distance for some axial spaces deficiency
Mirror, it is not suitable for using method 4；To sum up, ground large aperture telescope is as feasible using method 5, at this time, it may be necessary to increase in lateral support
Adding axial component, the caused torque on barycenter face, lever torque compensation mechanism of the present invention just do not solve with balance lateral support
Determine this problem.
The content of the invention
The present invention does not cause bias occur to solve ground large aperture telescope lateral support on principal reflection mirror barycenter face
The problems such as torque and limited bulk, the lever torque compensation mechanism for large caliber reflecting mirror.
For the lever torque compensation mechanism of large caliber reflecting mirror, provided using lever principle in principal reflection mirror excircle
Axial power output, realize the torque compensation of principal reflection mirror；The lever torque compensation mechanism includes input pouring weight, input
Screw rod, central rotating shaft, self-balancing pouring weight, self-balancing screw rod, bearing catch, output end grip block, hold-down support and output end；Institute
One end that input pouring weight is fixed on input screw rod is stated, and can be inputted on input screw rod by the way that screw thread is arbitrarily mobile
The position of pouring weight is held to adjust input spiro rod length；The other end of the input screw rod is connected with central rotating shaft；It is described from
Counterweight block is fixed on one end of self-balancing screw rod, and arbitrarily moves self-balancing pouring weight by screw thread on self-balancing screw rod
Position adjusts self-balancing spiro rod length；The other end of the self-balancing screw rod is connected with central rotating shaft；The central rotating shaft is worn
Bearing catch centre bore is crossed to be connected with hold-down support by bearing；The bearing catch are fixed by screws on hold-down support；
The output end grip block is by screws clamp in central rotating shaft end；The output end passes through ball bearing and output end grip block
Connection；When principal reflection mirror optical axis level, self-balancing pouring weight center of gravity is located on central rotating shaft, and input is provided by input pouring weight
Power, output end output axial force are used for trimming moment；
When principal reflection mirror optical axis is vertical, eccentric moment is not present in principal reflection mirror, and input pouring weight is located on central rotating shaft,
Input power is provided by self-balancing pouring weight, power output is used for balance output end, the gravity of output end grip block；When optical axis it is horizontal with
When between vertical, power output balance output end, the gravity of output end grip block of self-balancing pouring weight, the power output of input pouring weight
For balancing eccentric force.
Beneficial effects of the present invention：Compensation mechanism of the present invention, when principal reflection mirror optical axis level, self-balancing pouring weight
Center of gravity is located on central rotating shaft, therefore provides input power, output end output axial force balance torque by input pouring weight.Work as principal reflection
When mirror optical axis is vertical, eccentric moment is not present in principal reflection mirror, and input pouring weight is located on central rotating shaft, therefore is carried by self-balancing pouring weight
For input power, power output now is used for balance output end, the gravity of output end grip block.When optical axis is between horizontal and vertical
When, power output balance output end, the gravity of output end grip block of self-balancing pouring weight, the output dynamic balance bias of input pouring weight
Power；It ensure that ground large aperture telescope lever torque compensation mechanism under the different angles of pitch can compensate lateral support
Do not cause eccentric moment occur on principal reflection mirror barycenter face, and when being that optical axis is vertical in the absence of eccentric moment, lever power
Square compensation mechanism does not have power output；Simple in construction, compact and adjustment is simple.
Brief description of the drawings
Fig. 1 is the structural representation of the lever torque compensation mechanism of the present invention for large caliber reflecting mirror；
Fig. 2 be the lever torque compensation mechanism of the present invention for large caliber reflecting mirror in input pouring weight with it is defeated
Enter to hold the attachment structure schematic diagram of screw rod；
Fig. 3 is for self-balancing pouring weight in the lever torque compensation mechanism of the present invention for large caliber reflecting mirror and certainly
Balance the attachment structure schematic diagram of screw rod；
Fig. 4 is the central rotating shaft, defeated in the lever torque compensation mechanism of the present invention for large caliber reflecting mirror
Go out to hold the attachment structure schematic diagram of grip block and hold-down support.
In figure：1st, input pouring weight, 2, input screw rod, 3, central rotating shaft, 4, self-balancing pouring weight, 5, self-balancing screw rod,
6th, bearing catch, 7, output end grip block, 8, hold-down support, 9, output end.
Embodiment
Embodiment one, with reference to Fig. 1 to Fig. 4 illustrate present embodiment, the lever power for large caliber reflecting mirror
Square compensation mechanism, axial power output is provided in principal reflection mirror excircle using lever principle, so as to realize the torque of principal reflection mirror
Compensation.It is defeated by input pouring weight 1, input screw rod 2, central rotating shaft 3, self-balancing pouring weight 4, self-balancing screw rod 5, bearing catch 6
Go out to hold grip block 7, hold-down support 8, output end 9 is formed；As shown in Fig. 2 the described upper and lower ends of input pouring weight 1 have one respectively
Hex nut, input pouring weight 1 is fixed on input screw rod 2, and can on screw rod by screw thread arbitrarily move come
Adjust input torque arm length；Described input screw rod 2 is connected by pad, nut and central rotating shaft 3；As shown in figure 3, institute
There is a hex nut on the top of self-balancing pouring weight 4 stated respectively, and self-balancing pouring weight 4 is fixed on self-balancing screw rod 5, and can be with
Arbitrarily moved by screw thread to adjust torque arm length on screw rod；Described self-balancing screw rod 5 is turned by pad, nut and center
Axle 3 connects；Described central rotating shaft 3 is connected through bearing catch centre bore by bearing with hold-down support 8；Described bearing rib
Piece is fixed on hold-down support 8 by screw；As shown in figure 4, described output end grip block 7 is turned by screws clamp at center
The end of axle 3；Described output end 9 is connected by ball bearing with output end grip block 7.
The course of work of lever equalising torque mechanism described in present embodiment is：When principal reflection mirror optical axis level,
Self-balancing pouring weight center of gravity is located on central rotating shaft, therefore provides input power, output end output axial force balance power by input pouring weight
Square.When principal reflection mirror optical axis is vertical, eccentric moment is not present in principal reflection mirror, and input pouring weight is located on central rotating shaft, therefore by
Self-balancing pouring weight provides input power, and power output now is used for balance output end, the gravity of output end grip block.When optical axis is in water
It is flat with vertically between when, power output balance output end, the gravity of output end grip block of self-balancing pouring weight, input pouring weight it is defeated
Go out dynamic balance eccentric force.
Claims (2)
1. for the lever torque compensation mechanism of large caliber reflecting mirror, it is characterized in that, using lever principle outside principal reflection mirror
Circumference provides axial power output, realizes the torque compensation of principal reflection mirror；
The lever torque compensation mechanism includes input pouring weight (1), input screw rod (2), central rotating shaft (3), self-balancing
Pouring weight (4), self-balancing screw rod (5), bearing catch (6), output end grip block (7), hold-down support (8) and output end (9)；
The input pouring weight (1) is fixed on one end of input screw rod (2), and can pass through on input screw rod (2)
Screw thread arbitrarily moves the position of input pouring weight (1) to adjust input screw rod (2) length；
The other end of the input screw rod (2) is connected with central rotating shaft (3)；
The self-balancing pouring weight (4) is fixed on one end of self-balancing screw rod (5), and passes through screw thread on self-balancing screw rod (5)
The position of any mobile self-balancing pouring weight (4) adjusts self-balancing screw rod (5) length；
The other end of the self-balancing screw rod (5) is connected with central rotating shaft (3)；The central rotating shaft (3) passes through bearing catch (6)
Centre bore is connected by bearing with hold-down support (8)；
The bearing catch (6) are fixed by screws on hold-down support (8)；
The output end grip block (7) is by screws clamp in central rotating shaft (3) end；The output end (9) passes through ball bearing
It is connected with output end grip block (7)；
When principal reflection mirror optical axis level, self-balancing pouring weight (4) center of gravity is located on central rotating shaft (3), is carried by input pouring weight (1)
For input power, output end (9) output axial force is used for trimming moment；
When principal reflection mirror optical axis is vertical, eccentric moment is not present in principal reflection mirror, and input pouring weight (1) is located at central rotating shaft (3)
On, input power is provided by self-balancing pouring weight (4), power output is used for balance output end (9), the gravity of output end grip block (7)；
When optical axis is when between horizontal and vertical, power output balance output end (9), the output end grip block of self-balancing pouring weight (4)
(7) gravity, the power output of input pouring weight (1) are used to balance eccentric force.
2. the lever torque compensation mechanism according to claim 1 for large caliber reflecting mirror, it is characterised in that described
Input screw rod (2) is connected by pad, nut and central rotating shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710431139.5A CN107422453B (en) | 2017-06-09 | 2017-06-09 | Lever torque compensation mechanism for large caliber reflecting mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710431139.5A CN107422453B (en) | 2017-06-09 | 2017-06-09 | Lever torque compensation mechanism for large caliber reflecting mirror |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107422453A true CN107422453A (en) | 2017-12-01 |
| CN107422453B CN107422453B (en) | 2019-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710431139.5A Active CN107422453B (en) | 2017-06-09 | 2017-06-09 | Lever torque compensation mechanism for large caliber reflecting mirror |
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| CN (1) | CN107422453B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113253415A (en) * | 2021-06-01 | 2021-08-13 | 中国科学院长春光学精密机械与物理研究所 | Main mirror lateral support structure and assembling and adjusting method |
| CN115268011A (en) * | 2022-09-29 | 2022-11-01 | 中国科学院长春光学精密机械与物理研究所 | Gravity unloading device for reflector |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102081227A (en) * | 2010-12-06 | 2011-06-01 | 中国科学院光电技术研究所 | Radial support mechanism for primary mirror of large-caliber telescope for eliminating temperature stress |
| CN102621684A (en) * | 2012-03-31 | 2012-08-01 | 中国科学院长春光学精密机械与物理研究所 | Self-balance device for side support of primary mirror of equatorial telescope |
-
2017
- 2017-06-09 CN CN201710431139.5A patent/CN107422453B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102081227A (en) * | 2010-12-06 | 2011-06-01 | 中国科学院光电技术研究所 | Radial support mechanism for primary mirror of large-caliber telescope for eliminating temperature stress |
| CN102621684A (en) * | 2012-03-31 | 2012-08-01 | 中国科学院长春光学精密机械与物理研究所 | Self-balance device for side support of primary mirror of equatorial telescope |
Non-Patent Citations (1)
| Title |
|---|
| 吴小霞: "弯月薄镜的切向侧支撑设计研究", 《长春理工大学学报（自然科学版）》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113253415A (en) * | 2021-06-01 | 2021-08-13 | 中国科学院长春光学精密机械与物理研究所 | Main mirror lateral support structure and assembling and adjusting method |
| CN113253415B (en) * | 2021-06-01 | 2022-02-11 | 中国科学院长春光学精密机械与物理研究所 | Main mirror lateral support structure and assembling and adjusting method |
| CN115268011A (en) * | 2022-09-29 | 2022-11-01 | 中国科学院长春光学精密机械与物理研究所 | Gravity unloading device for reflector |
| CN115268011B (en) * | 2022-09-29 | 2022-12-09 | 中国科学院长春光学精密机械与物理研究所 | Gravity unloading device for reflector |
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| Publication number | Publication date |
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| CN107422453B (en) | 2019-07-19 |
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