CN114935818A - Tracking frame suitable for large-caliber telescope and large-caliber telescope - Google Patents

Tracking frame suitable for large-caliber telescope and large-caliber telescope Download PDF

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Publication number
CN114935818A
CN114935818A CN202210679026.8A CN202210679026A CN114935818A CN 114935818 A CN114935818 A CN 114935818A CN 202210679026 A CN202210679026 A CN 202210679026A CN 114935818 A CN114935818 A CN 114935818A
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China
Prior art keywords
telescope
slide rail
base
guide rail
arc
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CN202210679026.8A
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CN114935818B (en
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范文强
王志臣
王建立
李洪文
曹玉岩
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Changchun Institute of Optics Fine Mechanics and Physics of CAS
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Changchun Institute of Optics Fine Mechanics and Physics of CAS
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Priority to CN202210679026.8A priority Critical patent/CN114935818B/en
Publication of CN114935818A publication Critical patent/CN114935818A/en
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/16Housings; Caps; Mountings; Supports, e.g. with counterweight
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy

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  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Telescopes (AREA)

Abstract

The invention is suitable for the field of telescopes and discloses a tracking frame suitable for a large-caliber telescope and the large-caliber telescope, wherein the large-caliber telescope comprises a base, a tracking frame and a telescope main body, the tracking frame comprises a pitching axis system, an azimuth axis system and a base, the telescope main body is arranged on the pitching axis system, the pitching axis system is used for driving the telescope main body to perform pitching motion relative to the base, the azimuth axis system comprises a turntable, an arc guide rail and a bearing slide block, the pitching axis system is arranged on the turntable, the turntable is arranged on the base and can drive the pitching axis system and the telescope main body to perform azimuth rotating motion relative to the base, the arc guide rail is arranged on the base, the bearing slide block is arranged at the bottom of the turntable and is in sliding connection with the arc guide rail, the arc guide rail comprises a plurality of arc guide rail parts, and the arc guide rail parts are concentrically spliced to form the arc guide rail; the tracking frame has high rigidity and anti-interference stability, can realize high-precision pointing and stable tracking, and can reduce the manufacturing and maintenance cost of a shaft system.

Description

Tracking frame suitable for large-caliber telescope and large-caliber telescope
Technical Field
The invention relates to the field of telescopes, in particular to a tracking frame suitable for a large-caliber telescope and the large-caliber telescope.
Background
The telescope is mainly used for astronomical positioning, target range measurement, space target monitoring, space debris cataloging and setting rules and other scenes, and the larger caliber means larger visual field and light collection capability, and is one of important means for improving the photoelectric detection capability of the telescope. The tracking frame is a bearing main body of the telescope and provides a mounting and rotating platform for a tracking and measuring optical system, so that the target can be quickly captured, tracked and measured. The horizontal type telescope mainly comprises an equatorial type telescope, a horizontal type telescope and a horizontal type telescope according to different structural forms, and the horizontal type telescope is small in size, good in stress effect and light in weight and is commonly used for large-caliber telescope structures due to the fact that the horizontal type telescope is under the same allowable deformation condition. The common horizontal structure mainly comprises a pitching axis system with the upper part rotating around a horizontal axis and an azimuth axis system with the lower part rotating around a vertical axis. The performances of the shafting such as precision, bearing capacity, friction torque change and the like directly influence the tracking precision and stability of the whole system, so technical indexes such as high rigidity, high precision, low friction, friction torque uniformity and the like must be considered in shafting design.
With the continuous development and improvement of photoelectric detection technology, the application field of telescope equipment is greatly expanded. The ground-based telescope equipment cannot meet the requirements of modern photoelectric detection, the requirements of offshore measurement and land maneuvering observation are higher and higher, and the photoelectric telescope equipment is gradually expanded from the ground to vehicle-mounted, ship-mounted and airborne equal-movement base platforms. Because the photoelectric detection equipment under the movable base is influenced by carrier motion and external disturbance, the shafting is required to have higher rigidity and anti-interference stability, and the common hydrostatic bearing shafting mode of the foundation large-caliber telescope is not applicable any more. Meanwhile, in order to adapt to the increasing of the caliber of the telescope, the processing and manufacturing difficulty and the cost of a larger rolling bearing are increased continuously, along with the increasing of the revolution diameter of the bearing, the rolling friction moment is too large due to the rapid increase of the weight of the bearing for ensuring the same revolution precision and rigidity, the moment fluctuation is random and unknown, the compensation cannot be realized, and the challenge is provided for the stable and precise tracking control of a telescope shaft system.
Disclosure of Invention
The invention aims to provide a tracking frame suitable for a large-aperture telescope, which has high rigidity and anti-interference stability, can realize high-precision pointing and stable tracking, and can reduce the manufacturing and maintenance cost of a shaft system.
In order to achieve the purpose, the invention provides the following scheme:
the utility model provides a tracking frame suitable for heavy-calibre telescope, includes every single move shafting, position shafting and base, every single move shafting is used for driving the relative base of telescope main part and is the pitching motion, the position shafting includes revolving stage, circular arc guide rail and bearing slider, the every single move shafting is installed on the revolving stage, the revolving stage sets up on the base, the revolving stage is around vertical rotation of axle, and drive every single move shafting and the relative base of telescope main part are the position rotary motion, the circular arc guide rail sets up on the base, the bearing slider is provided with two at least, two or more the bearing slider sets up the bottom of revolving stage, and with circular arc guide rail sliding connection, the circular arc guide rail includes a plurality of circular arc guide rail portions, and is a plurality of circular arc guide rail portion splices with one heart and forms circular arc guide rail.
Preferably, a steel ball is arranged in the bearing slide block, a groove matched with the section shape of the arc guide rail is arranged on the bearing slide block, mutually matched rolling ways are arranged on two sides of the groove and two sides of the arc guide rail, the steel ball is arranged in the rolling way, and the bearing slide block is arranged on the arc guide rail through the steel ball and moves along the arc guide rail.
Preferably, the bearing slider is connected with the turntable through a screw.
Preferably, the position shafting is still including setting up the revolving stage with seal assembly between the base, seal assembly is located the outside of circular arc guide rail, seal assembly is including the sealed outer loop in position and the sealed inner ring in position of mutually supporting, the sealed outer loop in position with the revolving stage is connected, just the sealed outer loop in position is provided with down F shape joint portion, the sealed inner ring in position with pedestal connection, just the sealed inner ring in position be provided with down F shape joint portion complex F shape joint portion.
Preferably, the pitch axis system comprises a pitch axis mounting seat, a first slide rail component, a second slide rail component and a driving component, the pitching shaft mounting seat is arranged on the rotary table, the first slide rail component and the second slide rail component are respectively arranged at two sides of the support structure of the telescope main body, the structure of the first slide rail component is the same as that of the second slide rail component, the first slide rail component comprises a slide rail seat and an arc-shaped slide rail, the slide rail seat is arranged on the pitching shaft mounting seat and is provided with an arc chute, the arc slide rail is arranged in the arc chute in a sliding way, the arc-shaped slide rail is connected with a supporting structure of the telescope main body, and the driving assembly is used for driving the arc-shaped slide rail of the first slide rail assembly to rotate around a horizontal shaft so as to drive the telescope main body to do pitching motion relative to the base.
Preferably, the driving assembly includes a driving motor and an arc friction drum, the driving motor is installed on the pitch axis installation seat, the arc friction drum is arranged on one side of the arc slide rail departing from the slide rail seat, the arc friction drum is in contact with an output shaft of the driving motor, and the arc friction drum slides clockwise or anticlockwise along the arc slide groove along with the forward and reverse rotation of the output shaft of the driving motor.
Preferably, the pitching shaft installation seat comprises a bottom frame and vertical plates arranged on two sides of the bottom frame, the bottom frame is arranged on the rotary table, and the slide rail seat is arranged on the vertical plates.
Preferably, the top of the vertical plate is sunken to form an arc-shaped mounting groove.
Preferably, the arc-shaped slide rail is an R-shaped arc-shaped slide rail.
The second purpose of the invention is to provide a large-aperture telescope, which comprises a tracking frame and a telescope main body, wherein the tracking frame is suitable for the large-aperture telescope, the telescope main body comprises a primary mirror, a secondary mirror or a terminal assembly and a support structure, the support structure comprises a plurality of bolt balls and a plurality of truss rods, the bolt balls and the truss rods are spliced to form a space truss structure, the primary mirror is arranged at the bottom of the support structure, the secondary mirror or the terminal assembly is arranged at the top of the support structure, and the support structure is arranged on the pitching axis system.
The tracking frame suitable for the large-aperture telescope provided by the invention has the following advantages:
firstly, the azimuth axis of the tracking frame comprises a rotary table, an arc guide rail and a bearing sliding block, the arc guide rail and the bearing sliding block are matched with each other to form an arc guide rail pair, the arc guide rail pair is connected with the rotary table and a base, high-precision arc motion can be realized, loads in all directions can be borne, and the tracking frame is easy to assemble, disassemble and reassemble. That is to say, the tracking frame not only can realize high-precision pointing and smooth tracking, but also can make the shafting more compact and light, easy to maintain and reduce the manufacturing and maintaining cost of the shafting on the basis of ensuring the conditions of high rigidity, high precision, low friction, uniform friction torque and the like.
Secondly, the azimuth shafting of the tracking frame forms the arc guide rail by concentrically splicing the plurality of medium-scale arc guide rail parts, the high-precision processing process bottleneck of the bearing with the larger caliber of the azimuth shafting is avoided by the high-precision processing of the medium-scale R-shaped arc guide rail, the problems of processing and manufacturing difficulty and overlarge friction torque of the rolling bearing with the larger diameter are avoided, and the azimuth shafting with any rotary diameter can be basically realized as long as the processing process can be met.
The support structure of the large-aperture telescope provided by the invention has the advantages that a cross joint is omitted, the mutual position fixing and maintaining of the primary mirror and the terminal are realized through a truss structure, the rotation around a pitch axis system is realized, the short span between the two arc-shaped sliding rails is beneficial to the design of a more compact azimuth axis system, and the bearing of the azimuth axis system and the light weight of the telescope are facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a large aperture telescope provided by an embodiment of the invention;
FIG. 2 is a schematic diagram of a pitch shafting structure provided in an embodiment of the present invention;
FIG. 3 is a schematic view of a combination of an azimuth axis and a base provided by an embodiment of the present invention;
fig. 4 is a cross-sectional view of a seal assembly provided by an embodiment of the present invention.
The reference numbers indicate:
10. a tracking rack; 11. a pitch axis system; 111. a pitch shaft mounting base; 1111. a bottom frame; 1112. a vertical plate; 1113. an arc-shaped mounting groove; 112. a first slide rail assembly; 1121. a slide rail seat; 1122. an arc-shaped slide rail; 1123. a circular arc chute; 113. a second slide rail assembly; 114. a drive assembly; 1141. a drive motor; 1142. a circular arc-shaped friction drum; 12. an azimuth axis; 121. a turntable; 122. a circular arc guide rail; 1221. a circular arc guide rail part; 123. a bearing slider; 124. a seal assembly; 1241. an azimuth seal outer ring; 1242. an azimuth seal inner ring; 13. a base; 20. a telescope main body; 21. a primary mirror; 22. a support structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1 to 4, a tracking frame 10 suitable for a large-aperture telescope according to an embodiment of the present invention is provided, and the tracking frame 10 is applied to installation of a large-aperture telescope, and can be used for mobile base 13 platforms such as vehicle-mounted, ship-mounted, and airborne platforms. Generally, the telescope comprises a telescope main body 20 and a tracking frame 10, wherein the telescope main body 20 comprises a primary mirror 21, a secondary mirror or a terminal assembly and a support structure 22, the secondary mirror or the terminal assembly is connected with the primary mirror 21 through the support structure 22 and ensures the mutual pose of the primary mirror and the secondary mirror in the movement process of a telescope axis, the support structure 22 is installed on the tracking frame 10, and the tracking frame 10 is used for driving the telescope main body 20 to do pitching movement and azimuth rotation movement.
Referring to fig. 1-4, a tracking frame 10 for a large-caliber telescope according to an embodiment of the present invention includes a pitch axis system 11, an azimuth axis system 12 and a base 13, the telescope main body 20 is mounted on the pitch axis system 11, the pitch axis system 11 is used to drive the telescope main body 20 to perform a pitch motion with respect to the base 13, the azimuth axis system 12 includes a turntable 121, an arc guide 122 and a bearing slider 123, the pitch axis system 11 is mounted on the turntable 121, the turntable 121 is disposed on the base 13, the turntable 121 rotates around a vertical axis (parallel to a Z-axis direction in fig. 1) and drives the pitch axis system 11 and the telescope main body 20 to perform an azimuth rotation motion with respect to the base 13, the arc guide 122 is disposed on the base 13, the bearing slider 123 is provided with at least two, two or more than two bearing sliders 123 are disposed at the bottom of the turntable 121 and slidably connected to the arc guide 122, the arc guide 122 includes a plurality of arc guide portions 1221, the plurality of circular arc guide portions 1221 are concentrically spliced to form the circular arc guide 122.
It can be understood that the number of the bearing blocks 123 can be set according to the weight of the telescope main body 20 and the pitch axis system 11, that is, when the bearing blocks 123 need to bear larger gravity, the number of the bearing blocks 123 needs to be set is larger.
It is understood that the number of the circular arc guide portions 1221 may be two, three, four or more, and the circular arc guide portions 1221 depend on the precision of the circular arc guide 122 and the diameter of the circular arc guide 122.
Optionally, a steel ball (not shown) is disposed inside the bearing slider 123, a groove (not shown) adapted to the cross-sectional shape of the arc guide rail 122 is disposed on the bearing slider 123, mutually-matched raceways (not shown) are disposed on both sides of the groove and both sides of the arc guide rail 122, the steel ball bearing the load is disposed in the raceway, and the bearing slider 123 adapted to the arc guide rail 122 is disposed on the arc guide rail 122 through the steel ball and is movable along the arc guide rail 122.
Optionally, the bearing slider 123 is screwed with the turntable 121 in a simple and reliable manner.
The tracking frame 10 suitable for the large-aperture telescope of the embodiment of the invention has the following advantages:
firstly, the azimuth axis system 12 of the tracking frame 10 includes a rotary table 121, an arc guide rail 122 and a bearing slider 123, the arc guide rail 122 and the bearing slider 123 are mutually matched to form an arc guide rail pair, and the arc guide rail pair is connected with the rotary table 121 and the base 13, so that high-precision arc motion can be realized, loads in all directions can be borne, and the assembly, disassembly and reassembly are easy. That is to say, the tracking frame 10 has high rigidity and anti-interference stability, not only can realize high-precision pointing and smooth tracking, but also can make the shafting more compact and light, and easy to maintain on the basis of ensuring the conditions of high rigidity, high precision, low friction, uniform friction torque and the like, and reduce the manufacturing and maintenance cost of the shafting.
Secondly, the azimuth axis system 12 of the tracking frame 10 forms the arc guide rail 122 by concentrically splicing the plurality of medium-sized arc guide rail parts 1221, and avoids the bottleneck of the high-precision machining process of the larger-caliber bearing of the azimuth axis system 12 by the high-precision machining of the medium-sized R-shaped arc guide rail 122, so that the problems of the machining and manufacturing difficulty and the overlarge friction torque of the larger-diameter rolling element bearing are solved, and the azimuth axis system 12 with any rotary diameter can be basically realized as long as the machining process can be met.
Referring to fig. 1 to 4, the azimuth axis 12 further includes a sealing assembly 124 disposed between the turntable 121 and the base 13, the sealing assembly 124 is disposed outside the circular arc guide 122, the sealing assembly 124 includes an azimuth sealing outer ring 1241 and an azimuth sealing inner ring 1242, the azimuth sealing outer ring 1241 is connected to the turntable 121, the azimuth sealing outer ring 1241 is provided with an inverted F-shaped clamping portion, the azimuth sealing inner ring 1242 is connected to the base 13, and the azimuth sealing inner ring 1242 is provided with an F-shaped clamping portion, which is matched with the inverted F-shaped clamping portion, by disposing the sealing assembly 124, dust can be prevented from entering the circular arc guide 122 and the bearing slider 123, so that the circular arc guide 122 and the bearing slider 123 have longer life.
It will be appreciated that both the azimuth seal outer ring 1241 and the azimuth seal inner ring 1242 may be provided in a segmented configuration.
Referring to fig. 1 to 4, exemplarily, the pitch shaft system 11 includes a pitch shaft mounting base 111, a first slide rail assembly 112, a second slide rail assembly 113 and a driving assembly 114, the pitch shaft mounting base 111 is disposed on the turntable 121, the first slide rail assembly 112 and the second slide rail assembly 113 are respectively disposed on two sides of the support structure 22 of the telescope main body 20, the first slide rail assembly 112 has the same structure as the second slide rail assembly 113, the first slide rail assembly 112 includes a slide rail base 1121 and an arc-shaped slide rail 1122, the slide rail base 1121 is disposed on the pitch shaft mounting base 111, the slide rail base 1121 is provided with an arc-shaped chute 1123, the arc-shaped slide rail 1122 is slidably mounted in the arc-shaped chute 1123, and the arc-shaped slide rail 1122 is connected with the support structure 22 of the telescope main body 20, the driving assembly 114 is configured to drive the arc-shaped slide rail 1122 of the first slide rail assembly 112 to rotate around a horizontal shaft (parallel to an X-axis direction in fig. 1), the pitching axis system 11 of the embodiment of the invention is more compact and lighter than the traditional azimuth pitching structure, meets the requirements of high-precision pointing and stable tracking of a telescope with a larger caliber movable base 13, reduces the processing and manufacturing costs of the azimuth axis system 12 and the pitching axis system 11, and has the characteristics of compactness and easy maintenance.
Optionally, the curved slide 1122 is an R-shaped curved slide.
It is understood that the slide rail seat 1121 may be a long circular arc-shaped slide rail seat or a short circular arc-shaped slide rail seat, and a plurality of short circular arc-shaped slide rail seats are disposed at intervals on the sliding path of the arc-shaped slide rail 1122.
It can be understood that the first slide rail assembly 112 is used as an active motion structure, the second slide rail assembly 113 is used as a passive structure, or is used as an active motion structure together with the first slide rail assembly 112, and when the second slide rail assembly 113 is also used as an active motion structure, the driving assembly 114 is also required to be disposed on one side of the second slide rail assembly 113.
As shown in fig. 1 to fig. 4, for example, the driving assembly 114 includes a driving motor 1141 and an arc friction drum 1142, the driving motor 1141 is mounted on the pitch axis mounting base 111, the arc friction drum 1142 is disposed on a side of the arc slide rail 1122 away from the slide rail base 1121, the arc friction drum 1142 contacts with an output shaft of the driving motor 1141, the arc friction drum 1142 slides clockwise or counterclockwise along the arc chute 1123 along with the forward and reverse rotation of the output shaft of the driving motor 1141, and the driving manner is simple and reliable.
Referring to fig. 1-4, for example, the pitch axis mount 111 includes a bottom frame 1111 and risers 1112 disposed at two sides of the bottom frame 1111, the bottom frame 1111 is disposed on the rotary table 121, the slide rail mounts 1121 are disposed on the risers 1112, and the bottom of the telescope body 20 is located between the two risers 1112, so that the overall structure of the telescope is more compact.
Referring to fig. 1 to 4, an embodiment of the present invention further provides a large-aperture telescope, which may be applied to a vehicle-mounted, ship-mounted, or aircraft-mounted moving base 13 platform, the large-aperture telescope includes a tracking frame 10 and a telescope main body 20, the tracking frame 10 is the tracking frame 10, the telescope main body 20 includes a primary mirror 21, a secondary mirror or a terminal assembly, and a support structure 22, the support structure 22 includes a plurality of stud balls and a plurality of truss rods, the plurality of stud balls and the plurality of truss rods are spliced to form a space truss structure, the primary mirror 21 is installed at the bottom of the support structure 22, the secondary mirror or the terminal assembly is installed at the top of the support structure 22, and the support structure 22 is installed on the pitch axis 11.
In order to make the whole telescope more compact, the top of the vertical plate 1112 is recessed to form an arc-shaped mounting groove 1113, and the support structure 22 crosses the arc-shaped mounting groove 1113 to be connected with the arc-shaped friction drum 1142, i.e. the arc-shaped slide rail 1122 is connected with the support structure 22 of the telescope main body 20 through the arc-shaped friction drum 1142.
The support structure 22 of the large-aperture telescope in the embodiment of the invention eliminates a four-way joint, realizes mutual position fixing and maintaining of the main mirror 21 and the terminal through a truss structure, realizes rotation around the pitch axis system 11, and the short span between the two arc-shaped slide rails 1122 is beneficial to design of a more compact azimuth axis system 12 and is beneficial to bearing of the azimuth axis system 12 and light weight of the telescope.
In addition, the azimuth axis system 12 of the tracking frame 10 includes a rotary table 121, an arc guide rail 122 and a bearing slider 123 matched with the arc guide rail 122, the arc guide rail 122 and the bearing slider 123 are matched with each other to form an arc guide rail pair, and the arc guide rail pair connects the rotary table 121 and the base 13, so that not only can high-precision arc motion be realized, but also loads in all directions can be borne, and the assembly, disassembly and reassembly are easy. On the basis of ensuring the conditions of high rigidity, high precision, low friction, uniform friction torque and the like, the shafting is more compact and light, is easy to maintain, and reduces the manufacturing and maintenance cost of the shafting.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The utility model provides a trail frame suitable for heavy-calibre telescope, its characterized in that, includes every single move shafting, position shafting and base, every single move shafting is used for driving the relative base of telescope main part and is the pitching motion, the position shafting includes revolving stage, circular arc guide rail and bearing slider, the every single move shafting is installed on the revolving stage, the revolving stage sets up on the base, the revolving stage is around vertical rotation of axle, and drive every single move shafting and the relative base of telescope main part are the azimuth rotary motion, the circular arc guide rail sets up on the base, the bearing slider is provided with two at least, more than two or two the bearing slider sets up the bottom of revolving stage, and with circular arc guide rail sliding connection, the circular arc guide rail includes a plurality of circular arc guide rail portion, and is a plurality of circular arc guide rail portion splices with one heart and forms circular arc guide rail.
2. The tracking frame for a large-aperture telescope as claimed in claim 1, wherein the bearing block has a steel ball inside it, the bearing block has a groove matching with the cross-sectional shape of the arc-shaped guide rail, the two sides of the groove and the two sides of the arc-shaped guide rail have mutually matching raceways, the steel ball is disposed in the raceway, and the bearing block is disposed on the arc-shaped guide rail through the steel ball and moves along the arc-shaped guide rail.
3. The tracking frame for a large aperture telescope of claim 1, wherein said bearing blocks are screwed to said turret.
4. The tracking frame for the large-aperture telescope according to claim 1, wherein the azimuth axis system further comprises a sealing assembly disposed between the turntable and the base, the sealing assembly is located outside the arc-shaped guide rail, the sealing assembly comprises an azimuth sealing outer ring and an azimuth sealing inner ring, the azimuth sealing outer ring and the azimuth sealing inner ring are engaged with each other, the azimuth sealing outer ring is connected to the turntable, the azimuth sealing outer ring is provided with an inverted F-shaped clamping portion, the azimuth sealing inner ring is connected to the base, and the azimuth sealing inner ring is provided with an F-shaped clamping portion engaged with the inverted F-shaped clamping portion.
5. The tracking frame for the large-aperture telescope according to claim 1, wherein the pitch axis system comprises a pitch axis mounting base, a first slide rail assembly, a second slide rail assembly and a driving assembly, the pitch axis mounting base is disposed on the turntable, the first slide rail assembly and the second slide rail assembly are respectively disposed on two sides of the support structure of the telescope body, the first slide rail assembly has the same structure as the second slide rail assembly, the first slide rail assembly comprises a slide rail base and an arc-shaped slide rail, the slide rail base is disposed on the pitch axis mounting base, the slide rail base is provided with an arc-shaped chute, the arc-shaped slide rail is slidably mounted in the arc-shaped chute, the arc-shaped slide rail is connected with the support structure of the telescope body, and the driving assembly is configured to drive the arc-shaped slide rail of the first slide rail assembly to rotate around a horizontal axis, so as to drive the telescope main body to do pitching motion relative to the base.
6. The tracking frame for the large-aperture telescope as claimed in claim 5, wherein the driving assembly comprises a driving motor and a circular arc friction drum, the driving motor is mounted on the pitch axis mounting base, the circular arc friction drum is disposed on a side of the arc slide rail facing away from the slide rail base, and the circular arc friction drum contacts with an output shaft of the driving motor, and the circular arc friction drum slides clockwise or counterclockwise along the circular arc chute along with the forward and reverse rotation of the output shaft of the driving motor.
7. The tracking frame for a large aperture telescope of claim 5, wherein said pitch axis mount comprises a bottom frame and a vertical plate disposed on either side of said bottom frame, said bottom frame being disposed on a turntable, said rail seat being disposed on said vertical plate.
8. The tracking frame for a large aperture telescope of claim 7, wherein said riser top portion is recessed to form an arcuate mounting slot.
9. The tracking frame for a large aperture telescope of claim 6, wherein said arcuate rail is an R-shaped arcuate rail.
10. A large aperture telescope, comprising a tracking frame and a telescope main body, wherein the tracking frame is the tracking frame suitable for large aperture telescopes as claimed in any one of claims 1 to 9, the telescope main body comprises a primary mirror, a secondary mirror or a terminal assembly, and a support structure, the support structure comprises a plurality of bolt balls and a plurality of truss rods, the plurality of bolt balls and the plurality of truss rods are spliced to form a space truss structure, the primary mirror is installed at the bottom of the support structure, the secondary mirror or the terminal assembly is installed at the top of the support structure, and the support structure is installed on the pitch axis system.
CN202210679026.8A 2022-06-16 2022-06-16 Tracking frame suitable for large-caliber telescope and large-caliber telescope Active CN114935818B (en)

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Citations (15)

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