CN112599985A - Bidirectional cable-driven pitching motion type large radio telescope - Google Patents
Bidirectional cable-driven pitching motion type large radio telescope Download PDFInfo
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- CN112599985A CN112599985A CN202011386061.8A CN202011386061A CN112599985A CN 112599985 A CN112599985 A CN 112599985A CN 202011386061 A CN202011386061 A CN 202011386061A CN 112599985 A CN112599985 A CN 112599985A
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- cable
- reflector
- seat frame
- pitching
- telescope
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/16—Reflecting surfaces; Equivalent structures curved in two dimensions, e.g. paraboloidal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
- H01Q3/04—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying one co-ordinate of the orientation
Abstract
The invention discloses a bidirectional cable-driven pitching motion type large radio telescope, and belongs to the technical field of antennas. The radio telescope comprises a reflector, a seat frame for bearing the reflector, a cable driving device and other main parts, and also comprises a cable stabilizing mechanism, a pitching precision control mechanism, a pitching limiting device and other auxiliary structures. Compared with the traditional structure, the radio telescope realizes the large-range pitching motion of the reflector in a bidirectional cable driving mode, thereby effectively reducing the height and weight of the whole structure. The invention has the characteristics of compact structure, high reliability, lower cost, convenient maintenance and the like.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to a bidirectional cable-driven pitching motion type large radio telescope.
Background
With the continuous progress of society and the great development of technological capability, mankind has not been satisfied with the existing exploration, and has looked at far and wide space. The radio astronomy which takes observation of unknown celestial bodies, research of origin of universe, search of extraterrestrial life and the like as important research purposes is more important, and the radio astronomy obtains greater attention of scientists. Radio astronomy has now stepped into the age of high sensitivity, large samples, which requires more sensitive and powerful precision astronomical observation equipment to detect darker and weaker celestial bodies. The precise radio astronomical observation equipment is a radio telescope.
From the second war, large radio telescopes were built in developed countries of the world. Such as a 76 m lovere antenna in the uk, a 100 m caliber ehfelsberg antenna in bourne, germany, a 100 x 110 m oval caliber greenfield antenna in west virginia, an arreibo 305 m fixed radio telescope, etc. In recent years, with the great development of the science and technology and the economic strength of our own, the investment of astronomical research is gradually increased in China, and some top-grade large radio telescopes in the world are continuously built. The system mainly comprises a 50-meter antenna built in Beijing, a 65-meter astronomical telescope built in Shanghai, a 66-meter deep space detection antenna built in Jia Si, a 500-meter spherical radio telescope built in Guizhou, a 70-meter antenna in Tianjin construction, a 120-meter antenna just started to be built in Yunnan and the like.
Among the large-scale radio telescopes listed above, the spherical radio telescope (FAST) with the largest diameter of 500 meters worldwide, which is built in the region of the Kedu Town and the Dadang within the Pingtang county in Guizhou in 2016, has attracted attention and observed results in recent years. The FAST telescope and the original world largest american arresibo 305 m radio telescope are of the type without movable mountings. The FAST telescope can form an effective reflecting surface with an instantaneous paraboloid shape with the caliber of 300 meters by the active deformation focusing of the reflecting surface during observation. The method that the fixed reflecting surface and the mobile feed source are adopted by the arresibo has a narrow observation range and low precision; the advantages of FAST are self-evident that its incomparable huge caliber is the most sensitive radio telescope in the world due to the adoption of the active deformation matching focusing technology, and has produced a great deal of observation results. It is disadvantageous that although the FAST deformable surface has directivity to some extent, the pointing vertex is limited to the zenith range of more than 40 ° due to structural limitations, which causes the blind observation area of FAST to be still large. In addition, the FAST telescope also benefits from local unique landform, so the construction experience cannot be widely popularized. Therefore, the telescope structure of FAST and Alexibo in a non-mount form has great limitations and specificity.
Through the comparative analysis of large radio telescopes in the world, the antenna of the radio telescope in a full movable form is still the main research stream and the main observation force in the field of radio astronomical observation. The fully movable radio telescope antenna is characterized in that a reflector can rotate omnidirectionally as the name suggests, and the fully movable radio telescope antenna is mainly realized by a seat frame of the telescope antenna. The seat frame is a supporting and orienting device of a telescope reflector, the reflector is guided to accurately capture and track a target under the control of a servo system, and the mechanical performance of the seat frame directly influences the sensitivity and observation of the telescope. Conventional mounts are typically of an azimuth-elevation (a-E) type configuration, with the axis a being plumb and the axis E being above the axis a and level. Through the matched rotation of the two shafts, the scanning range is greatly increased, and the antenna wave beams can point to the whole airspace.
By comparing the above all-movable radio telescope antennas in a longitudinal view, it can be seen that, without exception, the pitching motion is realized by arranging a huge sector gear at the middle position below the reflector of the moving part. We refer to this form of pitch drive as a "scalloped drive pitch motion".
Although the sector gear driving pitching motion form is effective traditionally and widely used in a plurality of large-scale ultra-large radio telescope antennas in the world, the sector gear driving pitching motion form can be obviously analyzed and obtained along with the increasing aperture of the telescope antennas, and has some obvious defects and shortcomings:
1. the fan-tooth drive pitch motion pattern increases the overall height of the structure.
The central rotation axis of the sector gear is coincident with the pitching motion central axis of the telescope antenna reflector, the reflector with a large caliber necessarily needs a corresponding sector gear with a large diameter, the sector gear with the large diameter is fixed below the reflector, the integral height of the reflector is inevitably and greatly increased, and the increase of the height of the reflector also inevitably leads to the increase of the height of the seat frame.
2. The scalloped drive pitch motion pattern increases the weight of the moving parts in the structure.
The large diameter sector gear will necessarily require a huge high strength and high rigidity support structure due to the shape-keeping requirement. This results in a large overall weight of the fan gear components in a large aperture telescope antenna, which adds to the weight of the reflector as part of the motion in the telescope.
3. The sector gear driving pitching motion form has low reliability.
As can be seen from the above 1 and 2, the reflector with huge volume and weight is moved only by the force of the sector gear, in which case the following risks are inevitable:
the reflector part is mainly supported by three points, wherein the three points are two points at the pitching shaft end and one point driven by the sector gear respectively. The three points are distributed in a vertical plane. It is conceivable that the movable portion having a large volume and weight is mainly supported by three points in such a vertical plane, and is not ideal in terms of safety.
The moving reflector generates a large moment of inertia and a large vibration impact. Since the drive of the sector gear is a rigid form, the energy of these undesirable movements can only be transmitted to the meshing surfaces of the gear, the pitch axis of the reflector, and the internal absorption of the structure, with risks to the internal structure. In addition, because the sector gear bears great force for a long time, particularly, great alternating pressure stress can be generated on the meshing tooth surface, and the sector gear is easy to have the fault risks of abrasion, tooth breakage, failure and the like in the past.
4. The sector gear driving pitching motion mode is high in implementation cost and large in design, manufacture and installation difficulty.
Sector gear transmission is a precise transmission mode, and requires that a driving gear and a sector gear have a very accurate and stable relative position relation. The sector gear with large size and large weight has great design and manufacture difficulty, and the gear is installed in a matching way, so that the adjustment of the tooth clearance and the like are more difficult. These designs tend to incur substantial cost increases for manufacturing installations.
5. The traditional structure is not beneficial to the maintenance and replacement of the pitching motion component. It is well known that long-term moving parts are subject to constant maintenance and replacement. However, because the traditional structure has large size, the fan gear, the motor reducer and other related mechanisms of the moving part are all at the high altitude of tens of meters, the space is seriously shielded, and the operation is inconvenient; the sector gear and the supporting mechanism have huge volume and weight, and are fixedly connected below the reflector to be used as a part of the reflector of the moving part. The structure and the stress balance of the original structure can be obviously changed by the disassembly and the stress change of the sector gear mechanism; the sector gear driving mechanism is also a motion braking mechanism, and other means for balancing and moving the reflector are difficult to realize when the sector gear driving mechanism is not used. This makes the maintenance and replacement operations of the sector gear very difficult.
Disclosure of Invention
In view of the above, the present invention provides a two-way cable-driven large radio telescope with pitching motion. The device has the characteristics of compact structure, high reliability, lower cost, convenience in maintenance and the like.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a bidirectional cable-driven pitching motion type large radio telescope comprises a reflector and a seat frame bearing the reflector, wherein a pitching shaft is arranged at the top of the seat frame, the pitching shaft is connected to the seat frame through a shaft seat and is parallel to the ground, and the bottom of the reflector is fixed with the pitching shaft; the rope power device is used for pulling the rope; the cable power devices are arranged on two opposite sides of the bottom of the antenna seat frame, one end of each cable is connected with the corresponding cable power device, and the other end of each cable is connected to the reflector above the corresponding cable power device; the cable power device drives the reflector to perform pitching motion through the cable.
Further, the device also comprises an azimuth rotating structure.
Furthermore, the azimuth rotating structure comprises a foundation, and an annular steel rail is arranged on the foundation; the bottom of the seat frame is provided with a roller which moves on the annular steel rail, and the roller drives the seat frame to do circular motion on the annular steel rail.
Further, the rope stabilizing device further comprises a rope stabilizing structure used for stabilizing the rope, wherein the rope stabilizing structure comprises a rope, a pulley and a tension sensor; one end of the stable rope is connected with the rope through a pulley, and the other end of the stable rope penetrates through the tension sensor and is fixed on the seat frame.
The pitching precision control structure comprises a meshing gear and a small sector gear, the small sector gear is arranged at the bottom of the reflector and is coaxial with the pitching shaft, the meshing gear is arranged on the seat frame, and the meshing gear and the seat frame are meshed with each other; and the seat frame is also provided with a damping motor for driving the meshing gear to rotate.
Furthermore, a pitching limiting structure used for limiting the limit position of the reflector is further arranged on the seat frame and comprises a main body steel frame and a buffering unit, the main body steel frame is fixed on the seat frame, and the buffering unit is fixed at the other end of the main body steel frame.
Furthermore, the constraint points of each cable in the same section are connected through an elastic component.
Further, the reflector has the same size of rotation angle range on both sides thereof with the vertically upward as a reference attitude.
The invention adopts the technical scheme to produce the beneficial effects that:
1. the invention realizes the pitching motion of the telescope antenna by a bidirectional cable driving mode, eliminates the traditional large sector gear mechanism, effectively reduces the weight of the movable reflector part in the telescope antenna and reduces the total height.
2. The invention forms space supporting stress on a large scale for the movable reflector part, so that the movement is more stable and reliable.
3. The invention abandons the traditional counterweight mode, skillfully balances the gravity center of the reflector structure arranged eccentrically through the tension of the unidirectional cable, and can also greatly reduce the weight of the movable reflector part of the antenna.
Drawings
FIG. 1 is a schematic front view of an embodiment of the present invention.
Fig. 2 is a side schematic view of fig. 1.
Fig. 3 is a schematic diagram of a cable structure of the present invention.
Fig. 4 is a schematic structural diagram of the cable power device of the invention.
Fig. 5 is a schematic view of the pitch accuracy control structure of the present invention.
Fig. 6 is a schematic view of the pitch limit structure of the present invention.
In the figure: 1. the device comprises a seat frame, 1.1, rollers, 1.2, shaft seats, 2, a reflector, 3, cables, 3.1 cable power devices, 3.2 cable stress structures, 3.1.1 and motor reducer combinations, 3.1.2 winding drums, 3.1.4 tension sensors, 3.1.5 terminals, 4 foundations, 4.1 annular steel rails, 5 cable stabilizing structures, 5.1 pulleys, 5.2 tension sensors, 5.3 terminals, 5.4 elastic parts, 6 pitching precision control structures, 6.1 meshing gears, 6.2 small sector gears, 6.3 annular code discs, 7 pitching limiting structures, 7.1 main steel frames, 7.2 buffer platforms, 7.3 buffer units, 7.4 and locking mechanisms.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
A bidirectional cable-driven pitching motion type large radio telescope comprises a reflector and a seat frame bearing the reflector, wherein a pitching shaft is arranged at the top of the seat frame, the pitching shaft is connected to the seat frame through a shaft seat and is parallel to the ground, and the bottom of the reflector is fixed with the pitching shaft; the rope power device is used for pulling the rope; the cable power devices are arranged on two opposite sides of the bottom of the antenna seat frame, one end of each cable is connected with the corresponding cable power device, and the other end of each cable is connected to the reflector above the corresponding cable power device; the cable power device drives the reflector to perform pitching motion through the cable.
Further, the device also comprises an azimuth rotating structure.
Furthermore, the azimuth rotating structure comprises a foundation, and an annular steel rail is arranged on the foundation; the bottom of the seat frame is provided with a roller which moves on the annular steel rail, and the roller drives the seat frame to do circular motion on the annular steel rail.
Further, the rope stabilizing device further comprises a rope stabilizing structure used for stabilizing the rope, wherein the rope stabilizing structure comprises a rope, a pulley and a tension sensor; one end of the stable rope is connected with the rope through a pulley, and the other end of the stable rope penetrates through the tension sensor and is fixed on the seat frame.
The pitching precision control structure comprises a meshing gear and a small sector gear, the small sector gear is arranged at the bottom of the reflector and is coaxial with the pitching shaft, the meshing gear is arranged on the seat frame, and the meshing gear and the seat frame are meshed with each other; and the seat frame is also provided with a damping motor for driving the meshing gear to rotate.
Furthermore, a pitching limiting structure used for limiting the limit position of the reflector is further arranged on the seat frame and comprises a main body steel frame and a buffering unit, the main body steel frame is fixed on the seat frame, and the buffering unit is fixed at the other end of the main body steel frame.
Furthermore, the constraint points of each cable in the same section are connected through an elastic component.
Further, the reflector has the same size of rotation angle range on both sides thereof with the vertically upward as a reference attitude.
The following is a more specific example:
as shown in fig. 1 to 6, a two-way cable-driven pitching motion type large radio telescope. The device has the characteristics of compact structure, high reliability, lower cost, convenience in maintenance and the like.
The present embodiment mainly comprises a seat frame 1, a reflector 2, a cable 3 and a cable driving device.
The seat frame is a large space steel frame structure. A group of roller 1.1 mechanisms are arranged at the bottom of the device, so that the direction rotation function of the device can be realized; two pitching shaft seats 1.2 are arranged at the upper part of the reflector, are used for supporting the reflector and are matched with the reflector to realize pitching rotation relative to a pitching shaft (which can be regarded as a connecting line of the two pitching shaft seats).
The reflector comprises a reflecting surface and a space net rack for supporting the reflecting surface. The reflector is mounted on the mount and has rotational freedom. The lower part of the lifting mechanism is provided with a pitching shaft mechanism. The reflector is matched and connected with a pitching shaft seat of the seat frame, so that the reflector has a degree of freedom of rotation relative to the seat frame along the pitching shaft.
The reflector and mount configurations described above are arranged in a bi-directional symmetrical fashion, i.e. the telescope primary configuration is symmetrical when the reflector is pointing vertically upwards, both in the direction of the pitch axis and perpendicular to the pitch axis. The connecting line (pitch axis) between the two pitch axis seats on the seat frame is parallel to the ground; the optical axis of the reflector is perpendicular to and intersects with the pitching axis, and the pitching axis is also perpendicular to and intersects with the azimuth axis. This symmetrical configuration allows a rotational motion capability of the reflector with respect to the mount along the pitch axis that is reasonably bilaterally symmetrical.
The cable driving device mainly comprises a cable power device 3.1 and a cable stress structure 3.2. The cable driving device achieves the purpose of pitching motion of the reflector rotating towards the two sides of the pitching shaft to the same degree. The cable power devices are symmetrically arranged on two sides of the bottom of the seat frame. The cable power device adopts a winch structure with a motor servo and mainly comprises a motor speed reducer assembly 3.1.1, a winch drum 3.1.2, a cable 3 wound on the winch drum, a tension sensor 3.1.4, a terminal 3.1.5 and the like. The motor reducer combination drives the winding drum to rotate in the positive and negative directions, so that the rope wound on the winding drum is driven to extend or shorten. The tension sensor is used for monitoring whether the tension of the cable is uniform and in a reasonable range. Corresponding to the cable power device on the seat frame, the cable stress structure is arranged at the lower part of the reflector and is also symmetrically distributed at two sides. The cable power device and the cable stress structure are connected through a cable.
One or more cables are arranged. The plurality of cables corresponds to more than one cable drive device. The safety cables are arranged in the cables, so that tension is not mainly provided when the telescope is normally used, and the safety cables play a role in special conditions such as breakage of other cables and the like, so that the reflector can safely fall back to a stable posture under extreme conditions.
Furthermore, the device also comprises a foundation 4, wherein an annular steel rail 4.1 is arranged on the foundation and corresponds to the roller mechanism at the bottom of the seat frame, so that the seat frame can rotate on the annular steel rail.
Further, a stabilizer structure 5 is included. The cable stabilizer structure is mounted on the seat frame and is connected to the cable by means of a pulley 5.1 assembly at the projecting end, the cable and the projecting end being in contact via the pulley and not fixed in position. The cable stabilizing mechanism is provided with a tension sensor 5.2 for tension and extension length and a terminal 5.3 connected to the sensor at the extension end so as to adjust the uniformity of the tension of each cable in real time. For the multi-cord case, there is also an elastic component. The structure is similar to the constraint between high-altitude high-voltage electric wires and is used for limiting the position and the distance between a plurality of ropes near a cross section. In the pitching motion process, the relative angle and distance between the cables can be changed, and the elastic parts 5.4 such as springs are adopted to adjust different constraint points. The function of the cable stabilizing structure is to overcome the unfavorable conditions of abnormal cable shaking vibration and the like which can occur under the conditions of strong wind, equipment vibration and the like.
Furthermore, the pitch precision control mechanism also comprises a pitch precision control structure 6, wherein the pitch precision control structure is a small sector gear mechanism and mainly comprises a meshing gear 6.1 and a small sector gear 6.2. The small sector gear is reversely arranged at the bottom of the reflector, penetrates through the reflector and is coaxial with the pitching shaft; the meshing gear is arranged on the seat frame and meshed with the small sector gear, and a motor reducer assembly or a damping motor provides torque. In the pitching motion process of the reflector, the cable driving device generates huge pulling force to enable the reflector to rotate along the pitching axis, and meanwhile, the small sector gear mechanism generates certain reverse counter torque. By matching a positive moment and a negative moment, the pitching angle of the auxiliary reflector is accurately controlled, so that the pitching motion of the reflector is more stable. Meanwhile, the mechanism can also assist in outputting rotation data, such as an annular coded disc 6.3 fixed on a small sector gear, and can also play a certain braking role so as to be used for locking the pitching attitude of the reflector.
The pitch accuracy control structure is rigid in motion property relative to the cable drive, and the pitch accuracy control structure is flexible; in the sport literature, the two are respectively equivalent to a Xiucai and a Hercules, the main driving force in the pitching motion process is provided by the cable driving, and when the cable driving precision control capability is insufficient, the pitching precision control mechanism plays a role.
The pitch precision control mechanism may be a hydraulic or lead screw type servo control mechanism capable of precision control.
Further, the device also comprises a pitching limiting structure 7. The two pitching limiting structures are symmetrically arranged on two sides of the seat frame and respectively correspond to the pitching angle limits of the seat frame. The pitching limiting structure mainly comprises a main steel frame 7.1, a buffering platform 7.2, a buffering unit 7.3, a locking mechanism 7.4 and the like. The contact platform is positioned at the protruding end part of the main body steel frame, and the buffer unit and the locking mechanism are respectively arranged on the contact platform. When the pitching motion is fast to the limit position, the preset protruding position of the reflector firstly contacts the buffer mechanism of the pitching limiting device, and the reflector reaches the limit position and stops moving after the impact force and the speed of the reflector are buffered. The locking mechanism can at this time strongly and effectively lock the reflector.
In the example, the vertical direction of the reflector is 0 degree, and the pitching motion of about +/-85 degrees can be realized.
When the telescope observes on the sky, the roller mechanism on the seat frame rotates on the annular steel rail of the foundation, so that the azimuth motion of the whole telescope is realized; the cable driving device and various auxiliary mechanisms realize the pitching motion of the reflector. The azimuth and the pitching motion have the functions of acceleration, deceleration, positioning, braking and the like, and the two motions are matched with each other, so that the accurate pointing of the reflector is realized.
The pitching motion is completed by the cable driving devices on two sides. The hoisting drum of the cable driving device on one side recovers the cable while the cable is released on the other side, so that the pitching action of the reflector is realized, and the pitching posture of the reflector is realized through the reverse movement. In the limit condition of pitching motion, the reflectors are respectively positioned at the lowest angles at the two sides of the seat frame and correspond to the pitching limiting devices at each side, so that the safety of the telescope antenna at the limit angle is ensured.
In conclusion, the technical scheme provided by the invention realizes the pitching motion of the telescope antenna in a bidirectional cable driving mode, eliminates the traditional large-scale sector gear mechanism, effectively reduces the weight of the movable reflector part in the telescope antenna and reduces the overall height; the movement is more stable and reliable, the manufacturing cost is low, and the maintenance is convenient. Is an important inventive improvement of the prior art solutions.
Claims (8)
1. A bidirectional cable-driven pitching motion type large radio telescope comprises a reflector and a seat frame bearing the reflector, wherein a pitching shaft is arranged at the top of the seat frame, and the bottom of the reflector is fixed with the pitching shaft; it is characterized by also comprising a cable and a cable power device for pulling the cable; the cable power devices are arranged on two opposite sides of the bottom of the antenna seat frame, one end of each cable is connected with the corresponding cable power device, and the other end of each cable is connected to the reflector above the corresponding cable power device; the cable power device drives the reflector to perform pitching motion through the cable.
2. The large single direction cable driven tilting radio telescope of claim 1, further comprising an azimuth rotating structure.
3. The large-scale radio telescope of claim 2, wherein the azimuth rotating structure comprises a foundation, and an annular steel rail is arranged on the foundation; the bottom of the seat frame is provided with a roller which moves on the annular steel rail, and the roller drives the seat frame to do circular motion on the annular steel rail.
4. The large-scale radio telescope of claim 1, further comprising a cable stabilizing structure for stabilizing the cable, wherein the cable stabilizing structure comprises a cable stabilizing rope, a pulley and a tension sensor; one end of the stable rope is connected with the rope through a pulley, and the other end of the stable rope penetrates through the tension sensor and is fixed on the seat frame.
5. The large-scale radio telescope of claim 1, further comprising a pitch accuracy control structure, wherein the pitch accuracy control structure comprises a meshing gear and a small sector gear, the small sector gear is mounted at the bottom of the reflector and is coaxial with the pitch axis, the meshing gear is mounted on the mount and is meshed with the mounting; and the seat frame is also provided with a damping motor for driving the meshing gear to rotate.
6. The large-scale radio telescope of claim 1, wherein the mount further comprises a pitch limiting structure for limiting the limit position of the reflector, the pitch limiting structure comprises a main steel frame and a buffer unit, the main steel frame is fixed on the mount, and the other end of the main steel frame is fixed on the buffer unit.
7. A large unidirectional cable driven pitch telescope as claimed in claim 1, wherein the binding points of each cable in the same cross section are connected by elastic means.
8. The large two-way cable-driven pitch telescope according to claim 1, wherein the reflector has the same angular range of rotation on both sides thereof in a reference attitude in the vertical direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011386061.8A CN112599985A (en) | 2020-12-02 | 2020-12-02 | Bidirectional cable-driven pitching motion type large radio telescope |
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| CN202011386061.8A CN112599985A (en) | 2020-12-02 | 2020-12-02 | Bidirectional cable-driven pitching motion type large radio telescope |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113381198A (en) * | 2021-06-15 | 2021-09-10 | 杭州电子科技大学 | Main focus feed type radio telescope pointing accuracy improving mechanism and self-adjusting method |
| CN113571905A (en) * | 2021-08-16 | 2021-10-29 | 中国电子科技集团公司第五十四研究所 | Split seat frame type overhead tracking antenna |
-
2020
- 2020-12-02 CN CN202011386061.8A patent/CN112599985A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113381198A (en) * | 2021-06-15 | 2021-09-10 | 杭州电子科技大学 | Main focus feed type radio telescope pointing accuracy improving mechanism and self-adjusting method |
| CN113381198B (en) * | 2021-06-15 | 2022-07-29 | 杭州电子科技大学 | Main focus feed type radio telescope pointing accuracy lifting mechanism and self-adjusting method |
| CN113571905A (en) * | 2021-08-16 | 2021-10-29 | 中国电子科技集团公司第五十四研究所 | Split seat frame type overhead tracking antenna |
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