CN114935818B - 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 PDFInfo
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- CN114935818B CN114935818B CN202210679026.8A CN202210679026A CN114935818B CN 114935818 B CN114935818 B CN 114935818B CN 202210679026 A CN202210679026 A CN 202210679026A CN 114935818 B CN114935818 B CN 114935818B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/16—Housings; Caps; Mountings; Supports, e.g. with counterweight
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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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 shaft system, an azimuth shaft system and a base, the telescope main body is arranged on the pitching shaft system, the pitching shaft system is used for driving the telescope main body to do pitching motion relative to the base, the azimuth shaft system comprises a turntable, an arc guide rail and a bearing sliding block, the pitching shaft system is arranged on the turntable, the turntable is arranged on the base and can drive the pitching shaft system and the telescope main body to do azimuth rotation motion relative to the base, the arc guide rail is arranged on the base, the bearing sliding 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 an 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 shafting.
Description
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, shooting range measurement, space target monitoring, space fragment cataloging and sizing and other scenes, and a larger caliber means larger view field and light collecting capability, so that the telescope 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, provides a mounting and rotating platform for a tracking and measuring optical system, and realizes rapid capturing, tracking and measuring of targets. The structure is mainly divided into an equatorial type, a horizontal type and a horizontal type according to different structural forms, and the horizontal type structure is small in size, good in stress effect and light in weight under the same allowable deformation condition, so that the horizontal type structure is commonly used for a large-caliber telescope structure. The common horizontal structure mainly comprises a pitching shaft system with the upper part rotating around a horizontal shaft and an azimuth shaft system with the lower part rotating around a vertical shaft. The performance such as the accuracy, the bearing capacity, the friction torque change and the like of the shafting directly influence the tracking accuracy and the stability of the whole system, so that the shafting design must consider technical indexes such as high rigidity, high accuracy, low friction, uniformity of the friction torque and the like.
Along with the continuous development and perfection of photoelectric detection technology, the application field of telescope equipment is greatly expanded. The requirements of modern photoelectric detection cannot be met by the telescope equipment of the foundation, the requirements of offshore measurement and land maneuvering observation are higher and higher, and the photoelectric telescope equipment is gradually expanded from the land base to the vehicle-mounted, carrier-based, airborne and other moving base platforms. Because the photoelectric detection equipment under the movable base is influenced by carrier movement and external disturbance, the shafting is required to have higher rigidity and anti-interference stability, and the hydrostatic bearing shafting mode commonly used for the foundation large-caliber telescope is not applicable any more. Meanwhile, in order to adapt to the continuous increase of the caliber of the telescope, the processing and manufacturing difficulty and cost of the larger rolling body bearing are continuously increased, and as the rotation diameter of the bearing is increased, the weight of the bearing is rapidly increased to ensure the same rotation precision and rigidity, so that the rolling friction moment is overlarge, the moment fluctuation is randomly unknown and cannot be compensated, and challenges are presented to the stability and precise tracking control of the telescope shafting.
Disclosure of Invention
A first object of the present invention is to provide a tracking frame suitable for a large caliber telescope, which has high rigidity and stability against disturbance, can realize high-precision pointing and stable tracking, and can reduce manufacturing and maintenance costs of a shafting.
In order to achieve the above purpose, the invention provides the following scheme:
the utility model provides a tracking frame suitable for heavy-calibre telescope, includes pitch shafting, azimuth shafting and base, pitch shafting is used for driving the telescope main part and is pitching motion relative to the base, the azimuth shafting includes revolving stage, circular arc guide rail and bearing slider, pitch shafting is installed on the revolving stage, the revolving stage sets up on the base, the revolving stage is rotatory around vertical axis, and drives pitch shafting and telescope main part are azimuth rotary motion relative to the base, the circular arc guide rail sets up on the base, the bearing slider is provided with at least two, two or more 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, a plurality of circular arc guide rail portions splice with one heart and form circular arc guide rail.
Preferably, a steel ball is arranged in the bearing sliding block, grooves matched with the cross section of the circular arc guide rail are formed in the bearing sliding block, raceways matched with each other are formed in two sides of the grooves and two sides of the circular arc guide rail, the steel ball is arranged in the raceways, and the bearing sliding block is arranged on the circular arc guide rail through the steel ball and moves along the circular arc guide rail.
Preferably, the bearing slide is in screw connection with the turntable.
Preferably, the azimuth shafting further comprises a sealing assembly arranged between the rotary table and the base, the sealing assembly is located on the outer side of the circular arc guide rail, the sealing assembly comprises an azimuth sealing outer ring and an azimuth sealing inner ring which are matched with each other, the azimuth sealing outer ring is connected with the rotary table, the azimuth sealing outer ring is provided with an inverted-F-shaped clamping portion, the azimuth sealing inner ring is connected with the base, and the azimuth sealing inner ring is provided with an F-shaped clamping portion matched with the inverted-F-shaped clamping portion.
Preferably, the pitching shaft system comprises a pitching shaft mounting seat, a first sliding rail assembly, a second sliding rail assembly and a driving assembly, the pitching shaft mounting seat is arranged on the rotary table, the first sliding rail assembly and the second sliding rail assembly are respectively arranged on two sides of a supporting structure of the telescope main body, the structure of the first sliding rail assembly is identical to that of the second sliding rail assembly, the first sliding rail assembly comprises a sliding rail seat and an arc sliding rail, the sliding rail seat is arranged on the pitching shaft mounting seat, the sliding rail seat is provided with an arc sliding groove, the arc sliding rail is slidably arranged in the arc sliding groove, the arc sliding rail is connected with the supporting structure of the telescope main body, and the driving assembly is used for driving the arc sliding rail of the first sliding 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 comprises a driving motor and an arc-shaped friction drum, the driving motor is mounted on the pitching shaft mounting seat, the arc-shaped friction drum is arranged on one side of the arc-shaped sliding rail, which is away from the sliding rail seat, and the arc-shaped friction drum is in contact with an output shaft of the driving motor, and the arc-shaped friction drum slides clockwise or anticlockwise along the arc-shaped sliding groove along with the positive and negative rotation of the output shaft of the driving motor.
Preferably, the pitching axis 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 sliding rail seat is arranged on the vertical plates.
Preferably, the riser top recess forms an arcuate mounting slot.
Preferably, the arc-shaped sliding rail is an R-shaped arc-shaped sliding rail.
The second object of the invention is to provide a large caliber telescope, comprising a tracking frame and a telescope main body, wherein the tracking frame is suitable for the large caliber telescope, the telescope main body comprises a primary mirror, a secondary mirror or a terminal assembly and a supporting structure, the supporting 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 supporting structure, the secondary mirror or the terminal assembly is arranged at the top of the supporting structure, and the supporting structure is arranged on a pitching axis system.
The tracking frame suitable for the large-caliber telescope has the following advantages:
first, the azimuth shafting of tracking frame includes revolving stage, circular arc guide rail and bearing slider, and circular arc guide rail and bearing slider mutually support, form circular arc guide rail pair, and circular arc guide rail pair connects revolving stage and base, both can realize high accuracy circular arc motion, can bear the load of all directions again, and equipment, dismantlement, reorganization are easy. That is, the tracking frame not only can realize high-precision pointing and stable tracking, but also ensures that the shafting is more compact and light in weight and easy to maintain on the basis of ensuring the conditions of high rigidity, high precision, low friction, uniform friction moment and the like, and reduces the manufacturing and maintenance cost of the shafting.
Secondly, the azimuth shafting of the tracking frame is formed by concentrically splicing a plurality of middle-scale arc guide rail parts to form an arc guide rail, the high-precision processing technology bottleneck of the bearing with larger caliber of the azimuth shafting is avoided by high-precision processing of the middle-scale R-shaped arc guide rail, the problems of processing and manufacturing difficulty and overlarge friction moment of the rolling body bearing with larger diameter are avoided, and the azimuth shafting with any revolution diameter can be basically realized as long as the processing technology can be satisfied.
The supporting structure of the large-caliber telescope provided by the invention eliminates the four-way joint, realizes mutual position fixing and holding of the primary mirror and the terminal through the truss structure, realizes rotation around the pitching axis, and the short span between the two arc-shaped sliding rails is beneficial to more compact azimuth axis design and bearing of the azimuth axis and light weight of the telescope.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a large caliber telescope according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a pitch axis structure provided by 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.
Reference numerals illustrate:
10. a tracking frame; 11. a pitching axis system; 111. a pitching shaft mounting seat; 1111. a bottom frame; 1112. a riser; 1113. an arc-shaped mounting groove; 112. a first slide rail assembly; 1121. a slide rail seat; 1122. an arc-shaped slide rail; 1123. arc chute; 113. a second slide rail assembly; 114. a drive assembly; 1141. a driving motor; 1142. circular arc friction drum wheel; 12. azimuth shafting; 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 body; 21. a primary mirror; 22. and a support structure.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
It will also be understood that when an element is referred to as being "mounted" 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.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
As shown in fig. 1 to 4, a tracking frame 10 for a large caliber telescope according to an embodiment of the present invention is provided, and the tracking frame 10 is applied to installation of a large caliber telescope, and can be used as a vehicle-mounted, ship-mounted and airborne moving base 13 platform. Generally, the telescope includes a telescope body 20 and a tracking frame 10, the telescope body 20 includes a primary mirror 21, a secondary mirror or terminal assembly, and a support structure 22, the secondary mirror or terminal assembly is connected to the primary mirror 21 through the support structure 22, and ensures the mutual pose of the secondary mirror or terminal assembly and the primary mirror during the axial movement of the telescope, the support structure 22 is mounted on the tracking frame 10, and the tracking frame 10 is used for driving the telescope body 20 to perform 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 pitching axis 11, an azimuth axis 12 and a base 13, a telescope body 20 is mounted on the pitching axis 11, the pitching axis 11 is used for driving the telescope body 20 to perform pitching motion relative to the base 13, the azimuth axis 12 includes a turntable 121, an arc guide 122 and a bearing slider 123, the pitching axis 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 the Z axis direction in fig. 1) and drives the pitching axis 11 and the telescope body 20 to perform azimuth rotation motion relative to the base 13, the arc guide 122 is disposed on the base 13, at least two bearing sliders 123 are disposed at the bottom of the turntable 121 and slidably connected with the arc guide 122, the arc guide 122 includes a plurality of arc guide portions 1221, and the plurality of arc guide portions 1221 are concentrically spliced to form the arc guide 122.
It will be appreciated that the number of bearing blocks 123 may be set according to the weight of the telescope body 20 and the pitch axis 11, i.e. the number of bearing blocks 123 to be set is greater when a greater weight is required.
It is understood that the number of the circular arc guide parts 1221 may be two, three, four or more, and the circular arc guide parts 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 built in the bearing slider 123, a groove (not shown) matched with the cross section shape of the circular arc guide rail 122 is formed in the bearing slider 123, raceways (not shown) matched with each other are formed on two sides of the groove and two sides of the circular arc guide rail 122, the steel ball bearing the load is arranged in the raceways, and the bearing slider 123 matched with the circular arc guide rail 122 is arranged on the circular arc guide rail 122 through the steel ball and can move along the circular arc guide rail 122.
Optionally, the bearing slider 123 is in screw connection with the turntable 121, and the connection mode is simple and reliable.
The tracking frame 10 suitable for the large-caliber telescope provided by the embodiment of the invention has the following advantages:
first, the azimuth shafting 12 of tracking frame 10 includes revolving stage 121, circular arc guide rail 122 and bearing slider 123, and circular arc guide rail 122 and bearing slider 123 mutually support, form circular arc guide rail pair, and circular arc guide rail pair connects revolving stage 121 and base 13, both can realize high accuracy circular arc motion, can bear the load of all directions again, and equipment, dismantlement, reorganization are easy. That is, the tracking frame 10 has high rigidity and stability against disturbance, not only can realize high-precision pointing and stable tracking, but also makes the shafting more compact and light-weighted, is easy to maintain, and reduces the manufacturing and maintenance costs of the shafting on the basis of ensuring uniform conditions of high rigidity, high precision, low friction, friction moment and the like.
Secondly, the azimuth shafting 12 of the tracking frame 10 utilizes the concentric splicing of a plurality of middle-scale arc guide rail parts 1221 to form the arc guide rail 122, so that the high-precision processing technology bottleneck of the larger-caliber bearing of the azimuth shafting 12 is avoided by the high-precision processing of the middle-scale R-shaped arc guide rail 122, the problems of processing and manufacturing difficulty and overlarge friction moment of the rolling body bearing with larger diameter are avoided, and the azimuth shafting 12 with any rotation diameter can be basically realized as long as the processing technology can be satisfied.
Referring to fig. 1-4, illustratively, the azimuth shafting 12 further includes a seal assembly 124 disposed between the turntable 121 and the base 13, the seal assembly 124 is located outside the circular arc guide rail 122, the seal assembly 124 includes an azimuth seal outer ring 1241 and an azimuth seal inner ring 1242 that are mutually matched, the azimuth seal outer ring 1241 is connected with the turntable 121, the azimuth seal outer ring 1241 is provided with an inverted F-shaped clamping portion, the azimuth seal inner ring 1242 is connected with the base 13, and the azimuth seal inner ring 1242 is provided with an F-shaped clamping portion that is matched with the inverted F-shaped clamping portion, dust can be prevented from entering the circular arc guide rail 122 and the bearing slider 123 by providing the seal assembly 124, so that the circular arc guide rail 122 and the bearing slider 123 have a longer service life.
It is appreciated that the azimuth seal outer ring 1241 and azimuth seal inner ring 1242 may each be provided in a segmented structure.
Referring to fig. 1-4, illustratively, the elevation axis system 11 includes an elevation axis mounting seat 111, a first sliding rail assembly 112, a second sliding rail assembly 113 and a driving assembly 114, the elevation axis mounting seat 111 is disposed on the turntable 121, the first sliding rail assembly 112 and the second sliding rail assembly 113 are disposed on two sides of the supporting structure 22 of the telescope body 20, the first sliding rail assembly 112 and the second sliding rail assembly 113 are the same, the first sliding rail assembly 112 includes a sliding rail seat 1121 and an arc sliding rail 1122, the sliding rail seat 1121 is disposed on the elevation axis mounting seat 111, the sliding rail seat 1121 is provided with an arc sliding groove 1123, the arc sliding rail 1122 is slidably mounted in the arc sliding groove 1123, and the arc sliding rail 1122 is connected with the supporting structure 22 of the telescope body 20, and the driving assembly 114 is used for driving the arc sliding rail 1122 of the first sliding rail assembly 112 to rotate around a horizontal axis (parallel to the X axis direction in fig. 1) to drive the telescope body 20 to make elevation motion relative to the base 13.
Optionally, the arc slide rail 1122 is an R-shaped arc slide rail.
It can be appreciated that the rail seat 1121 may be a long arc rail seat or a short arc rail seat, and a plurality of short arc rail seats are disposed at intervals on the sliding path of the arc rail 1122.
It can be appreciated that the first sliding rail assembly 112 is used as an active moving structure, the second sliding rail assembly 113 can be used as a passive structure, or can be used as an active moving structure together with the first sliding rail assembly 112, and when the second sliding rail assembly 113 is also used as an active moving structure, a driving assembly 114 is also required to be arranged on one side of the second sliding rail assembly 113.
Referring to fig. 1-4, the driving assembly 114 illustratively includes a driving motor 1141 and a circular arc friction drum 1142, the driving motor 1141 is mounted on the pitch shaft mounting base 111, the circular arc friction drum 1142 is disposed on a side of the circular arc slide rail 1122 facing away from the slide rail base 1121, the circular arc friction drum 1142 contacts with an output shaft of the driving motor 1141, and the circular arc friction drum 1142 slides clockwise or counterclockwise along the circular arc slide slot 1123 along with the positive and negative rotation of the output shaft of the driving motor 1141, so that the driving manner is simple and reliable.
Referring to fig. 1-4, illustratively, the pitch axis mount 111 includes a bottom frame 1111 and risers 1112 disposed on opposite sides of the bottom frame 1111, the bottom frame 1111 is disposed on the turntable 121, the slide rail seat 1121 is 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. 1-4, the embodiment of the present invention further provides a large caliber telescope, which can be applied to a platform of a moving base 13 on a vehicle, a ship, or a plane, wherein the large caliber telescope includes a tracking frame 10 and a telescope main body 20, the tracking frame 10 adopts the tracking frame 10 as described above, 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 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 21 is mounted at the bottom of the support structure 22, the secondary mirror or the terminal assembly is mounted at the top of the support structure 22, and the support structure 22 is mounted on a pitch shafting 11.
To make the overall telescope structure more compact, the top of the vertical plate 1112 is recessed to form an arc-shaped mounting groove 1113, and the support structure 22 is connected to the arc-shaped friction drum 1142 beyond the arc-shaped mounting groove 1113, i.e., the arc-shaped slide rail 1122 is connected to the support structure 22 of the telescope body 20 through the arc-shaped friction drum 1142.
According to the support structure 22 of the large-caliber telescope, the four-way joint is omitted, the mutual position fixing and the holding of the primary mirror 21 and the terminal are realized through the truss structure, the rotation around the pitching shaft system 11 is realized, the short span between the two arc-shaped slide rails 1122 is beneficial to the design of a more compact azimuth shaft system 12, and the bearing of the azimuth shaft system 12 and the light weight of the telescope are facilitated.
In addition, the azimuth shafting 12 of the tracking frame 10 comprises a rotary table 121, an arc guide rail 122 and a bearing slide block 123 matched with the arc guide rail 122, the arc guide rail 122 and the bearing slide block 123 are matched with each other 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 movement can be realized, loads in all directions can be borne, and assembly, disassembly and recombination are easy. On the basis of ensuring the conditions of high rigidity, high precision, low friction, uniform friction moment and the like, the shafting is more compact, lighter and easy to maintain, and the manufacturing and maintenance cost of the shafting is reduced.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (6)
1. The tracking frame suitable for the large-caliber telescope is characterized by comprising a pitching shaft system, an azimuth shaft system and a base, wherein the pitching shaft system is used for driving a telescope main body to do pitching motion relative to the base, the azimuth shaft system comprises a turntable, an arc guide rail and a bearing sliding block, the pitching shaft system is arranged on the turntable, the turntable is arranged on the base, the turntable rotates around a vertical shaft and drives the pitching shaft system and the telescope main body to do azimuth rotation motion relative to the base, the arc guide rail is arranged on the base, the bearing sliding block is provided with at least two or more than two bearing sliding blocks, the two or more than two bearing sliding blocks are arranged at the bottom of the turntable and are 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 pitching shaft system comprises a pitching shaft mounting seat, a first sliding rail assembly, a second sliding rail assembly and a driving assembly, wherein the pitching shaft mounting seat is arranged on the turntable, the first sliding rail assembly and the second sliding rail assembly are respectively arranged on two sides of a supporting structure of the telescope main body, the structure of the first sliding rail assembly is identical to that of the second sliding rail assembly, the first sliding rail assembly comprises a sliding rail seat and an arc sliding rail, the sliding rail seat is arranged on the pitching shaft mounting seat, the sliding rail seat is provided with an arc sliding groove, the arc sliding rail is slidably arranged in the arc sliding groove, the arc sliding rail is connected with the supporting structure of the telescope main body, and the driving assembly is used for driving the arc sliding rail of the first sliding rail assembly to rotate around a horizontal shaft so as to drive the telescope main body to do pitching motion relative to the base;
the driving assembly comprises a driving motor and an arc-shaped friction drum, the driving motor is arranged on the pitching shaft mounting seat, the arc-shaped friction drum is arranged on one side of the arc-shaped sliding rail, which is away from the sliding rail seat, and is contacted with an output shaft of the driving motor, and the arc-shaped friction drum slides clockwise or anticlockwise along the arc-shaped sliding groove along with the positive and negative rotation of the output shaft of the driving motor;
the bearing sliding block is internally provided with a steel ball, the bearing sliding block is provided with a groove matched with the cross section shape of the circular arc guide rail, two sides of the groove and two sides of the circular arc guide rail are respectively provided with a raceway matched with each other, the steel ball is arranged in the raceways, and the bearing sliding block is arranged on the circular arc guide rail through the steel ball and moves along the circular arc guide rail;
the bearing shafting is characterized by further comprising a sealing assembly arranged between the rotary table and the base, wherein the sealing assembly is positioned on the outer side of the circular arc guide rail and comprises a bearing sealing outer ring and a bearing sealing inner ring which are matched with each other, the bearing sealing outer ring is connected with the rotary table, the bearing sealing outer ring is provided with an inverted F-shaped clamping part, the bearing sealing inner ring is connected with the base, and the bearing sealing inner ring is provided with an F-shaped clamping part matched with the inverted F-shaped clamping part.
2. The tracking frame for a large caliber telescope as claimed in claim 1, wherein said bearing slider is screw-connected to said turntable.
3. The tracking frame for a large caliber telescope as claimed in claim 1, wherein said elevation axis mounting base comprises a bottom frame and risers provided on both sides of said bottom frame, said bottom frame is provided on a turntable, and said slide rail base is provided on said risers.
4. A tracking frame for a large caliber telescope as claimed in claim 3 wherein said riser top recess forms an arcuate mounting slot.
5. The tracking frame for a large caliber telescope as recited in claim 1, wherein said arcuate slide rail is an R-shaped arcuate slide rail.
6. A heavy caliber telescope, comprising a tracking frame and a telescope main body, wherein the tracking frame is a tracking frame suitable for the heavy caliber telescope according to any one of claims 1-5, the telescope main body comprises a primary mirror, a secondary mirror or a terminal assembly, and a supporting structure, the supporting 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 supporting structure, the secondary mirror or the terminal assembly is arranged at the top of the supporting structure, and the supporting structure is arranged on a pitching axis system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210679026.8A CN114935818B (en) | 2022-06-16 | 2022-06-16 | Tracking frame suitable for large-caliber telescope and large-caliber telescope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210679026.8A CN114935818B (en) | 2022-06-16 | 2022-06-16 | Tracking frame suitable for large-caliber telescope and large-caliber telescope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114935818A CN114935818A (en) | 2022-08-23 |
| CN114935818B true CN114935818B (en) | 2023-08-15 |
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| CN202210679026.8A Active CN114935818B (en) | 2022-06-16 | 2022-06-16 | Tracking frame suitable for large-caliber telescope and large-caliber telescope |
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