CN212667708U - Satellite antenna gravity unloading device - Google Patents
Satellite antenna gravity unloading device Download PDFInfo
- Publication number
- CN212667708U CN212667708U CN202021250944.1U CN202021250944U CN212667708U CN 212667708 U CN212667708 U CN 212667708U CN 202021250944 U CN202021250944 U CN 202021250944U CN 212667708 U CN212667708 U CN 212667708U
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- Prior art keywords
- guide rail
- truss
- unloading
- satellite antenna
- lifting rope
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- 230000005484 gravity Effects 0.000 title claims abstract description 20
- 238000004088 simulation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model relates to an uninstallation device specifically relates to a satellite antenna gravity uninstallation device. The device comprises a truss, a two-dimensional guide rail mechanism, a fixed pulley assembly and an equivalent counterweight; the truss includes truss roof and support the support column of truss roof, and two-dimensional guide rail mechanism installs in truss roof below, and satellite antenna accessible two-dimensional guide rail mechanism removes, and the uninstallation lifting rope passes the fixed pulley assembly on the two-dimensional guide rail mechanism, and one end is connected with the antenna unloading point, and the equivalent counter weight is connected to the uninstallation lifting rope other end. The utility model discloses a two-dimensional guide rail adds the fixed pulley combination and has realized satellite antenna position every single move continuous rotation under the weightless environment of simulation, and the rotation range is supported in the position: 0 to 180 degrees and a pitching supporting rotation range of 0 to 90 degrees.
Description
Technical Field
The utility model relates to an uninstallation device specifically relates to a satellite antenna gravity uninstallation device.
Background
The satellite is in a gravity-free state during orbital operation, but a gravity environment exists in the ground test process, and a gravity zero gravity environment needs to be simulated based on a gravity unloading device for carrying out the ground test of the satellite antenna. The conventional gravity unloading device mainly meets the requirement of antenna static pointing test, and needs to be designed for carrying out tests on continuous pointing and dynamic tracking performance of the satellite antenna in a weightless environment, so that the weightless environment of the satellite antenna is simulated, and the satellite antenna is supported to rotate continuously in an azimuth pitching manner in the simulated weightless environment.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the satellite antenna gravity unloading device based on the combination of the two-dimensional guide rail and the fixed pulley is provided, and the satellite antenna can continuously rotate in the direction pitching under the simulated weightlessness environment.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts as follows:
a satellite antenna gravity unloading apparatus, comprising: the device comprises a truss, a two-dimensional guide rail mechanism, a fixed pulley assembly and an equivalent counterweight; the truss comprises a truss roof and a support column for supporting the truss roof, the two-dimensional guide rail mechanism is installed below the truss roof, the satellite antenna can move through the two-dimensional guide rail mechanism, the unloading lifting rope penetrates through a fixed pulley assembly on the two-dimensional guide rail mechanism, one end of the unloading lifting rope is connected with the antenna unloading point, and the other end of the unloading lifting rope is connected with the equivalent counterweight.
Furthermore, the two-dimensional guide rail mechanism comprises 2 longitudinal guide rails, transverse guide rails and a sliding trolley, wherein the 2 longitudinal guide rails are arranged in parallel and hung below the truss roof, and each transverse guide rail is arranged on the sliding trolley of the longitudinal guide rail and can freely slide on the longitudinal guide rail; each transverse guide rail can be connected with a parallel short guide rail through a sliding trolley, the short guide rail can freely slide on the transverse guide rail, the unloading lifting rope passes through the fixed pulley assembly on the short guide rail, one end of the unloading lifting rope is connected with the antenna unloading point, and the other end of the unloading lifting rope is connected with the equivalent counterweight.
Furthermore, the truss is built by adopting cubic unit grids.
The utility model has the advantages that:
the utility model discloses a two-dimensional guide rail adds the fixed pulley combination and has realized satellite antenna position every single move continuous rotation under the weightless environment of simulation, and the rotation range is supported in the position: 0 to 180 degrees and a pitching supporting rotation range of 0 to 90 degrees.
Drawings
FIG. 1 is a schematic diagram of a satellite antenna gravity unloading apparatus;
FIG. 2 is a schematic diagram of a system debugging of a satellite antenna gravity unloading device;
fig. 3 is a schematic diagram of satellite antenna hoisting.
In the figure: 1-truss, 2-two-dimensional guide rail mechanism, 3-fixed pulley component, 4-equivalent counterweight, 5-unloading lifting rope, 6-scale, 7-theodolite and 8-satellite antenna
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The utility model provides a pair of satellite antenna gravity uninstallation device mainly includes subassemblies such as truss 1, two-dimentional guide rail mechanism 2, fixed pulley assembly 3, equivalent counter weight 4, as shown in attached figure 1.
The truss 1 is built by adopting cubic unit grids of 500 mm. The truss 1 comprises a truss roof and a supporting column for supporting the truss roof, the occupied space of the truss is 6m (length) × 2m (width) × 3.5m (height), the two-dimensional guide rail mechanism is installed below the truss roof, the operable space is a movement area of the two-dimensional guide rail mechanism installed below the truss roof, the size is 4m (length) × 2m (width) × 2.5m (height), and space required by gravity unloading of the satellite antenna is provided. And aiming at the single-point hanging mode of the satellite antenna, a two-dimensional guide rail mechanism is arranged below the truss roof. The two-dimensional guide rail mechanism comprises 2 longitudinal guide rails, transverse guide rails and a sliding trolley, wherein the 2 longitudinal guide rails of the two-dimensional guide rails are arranged in parallel and hung below the truss roof, and each transverse guide rail is arranged on the sliding trolley of the longitudinal guide rail and can freely slide on the longitudinal guide rail; each transverse guide rail can be connected with a parallel short guide rail through a sliding trolley, and the short guide rails can freely slide on the transverse guide rails. The unloading lifting rope 5 passes through the fixed pulley assembly 3 on the short guide rail and is connected with the antenna product. The unloading lifting rope 5 penetrates through the fixed pulley assembly on the short guide rail, one end of the unloading lifting rope is connected with an antenna unloading point, the other end of the unloading lifting rope is connected with the equivalent counterweight 4, and the antenna unloading point can freely move in a three-dimensional space below the truss roof.
The following mainly describes the implementation process of gravity unloading of the satellite antenna.
(1) System debugging
The main purpose of system debugging is to ensure that the levelness of the two-dimensional track meets the requirement that the hoisting point freely moves on the plane of the track. During accurate adjustment, a calculation method for correcting track node test parameters is adopted, a ruler 6 is fixed at a proper position on a lifting rope 5, 1 theodolite 7 is used for measuring the height value of each node, and the two-dimensional track levelness can meet the use requirement (the difference between any two points is less than or equal to 1mm) through measurement and debugging, as shown in figure 2.
(2) Antenna hoist
1) The two-dimensional sliding rail is ensured to slide flexibly and be connected firmly;
2) the satellite antenna 8 is stably placed below the two-dimensional guide rail mechanism, the rotation range of the antenna is estimated, and the effective stroke of the two-dimensional guide rail mechanism is ensured;
3) adjusting the antenna unfolding axis to be vertical;
4) for satellite antenna hoisting, as shown in fig. 3, the unloading sling passes through the lower short guide rail fixed pulley assembly, one end of the unloading sling is connected with an antenna unloading point, and the other end of the unloading sling is connected with an equivalent counterweight 4.
5) The antenna is unlocked, the gravity unloading system supports the antenna to rotate in a pitching mode in the azimuth direction, and the satellite antenna ground test is carried out in a matched mode.
Claims (3)
1. A satellite antenna gravity unloading apparatus, the apparatus comprising: the device comprises a truss, a two-dimensional guide rail mechanism, a fixed pulley assembly and an equivalent counterweight; the truss comprises a truss roof and a support column for supporting the truss roof, the two-dimensional guide rail mechanism is installed below the truss roof, the satellite antenna can move through the two-dimensional guide rail mechanism, the unloading lifting rope penetrates through a fixed pulley assembly on the two-dimensional guide rail mechanism, one end of the unloading lifting rope is connected with the antenna unloading point, and the other end of the unloading lifting rope is connected with the equivalent counterweight.
2. The satellite antenna gravity unloading device according to claim 1, wherein the two-dimensional guide rail mechanism comprises 2 longitudinal guide rails, transverse guide rails and a sliding trolley, wherein the 2 longitudinal guide rails are hung below the truss roof in a mutually parallel arrangement, and each transverse guide rail is arranged on the sliding trolley of the longitudinal guide rails and can freely slide on the longitudinal guide rails; each transverse guide rail can be connected with a parallel short guide rail through a sliding trolley, the short guide rail can freely slide on the transverse guide rail, the unloading lifting rope passes through the fixed pulley assembly on the short guide rail, one end of the unloading lifting rope is connected with the antenna unloading point, and the other end of the unloading lifting rope is connected with the equivalent counterweight.
3. The satellite antenna gravity unloading device of claim 2, wherein the truss is built up using cubic cells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021250944.1U CN212667708U (en) | 2020-06-30 | 2020-06-30 | Satellite antenna gravity unloading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021250944.1U CN212667708U (en) | 2020-06-30 | 2020-06-30 | Satellite antenna gravity unloading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212667708U true CN212667708U (en) | 2021-03-09 |
Family
ID=74819152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021250944.1U Expired - Fee Related CN212667708U (en) | 2020-06-30 | 2020-06-30 | Satellite antenna gravity unloading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212667708U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113460338A (en) * | 2021-07-02 | 2021-10-01 | 上海航天测控通信研究所 | Multifunctional antenna gravity unloading device |
| CN113725625A (en) * | 2021-07-30 | 2021-11-30 | 西安空间无线电技术研究所 | System and method for unfolding and unloading ultra-long parabolic cylinder antenna |
| CN114056608A (en) * | 2021-11-30 | 2022-02-18 | 北京卫星制造厂有限公司 | Counter weight mechanism and zero-gravity unfolding experimental device |
| CN114194424A (en) * | 2021-12-10 | 2022-03-18 | 清华大学 | Gravity unloading device for satellite gripper and using method thereof |
| CN115626308A (en) * | 2022-09-28 | 2023-01-20 | 西安空间无线电技术研究所 | Two-stage unfolding double-shaft tracking satellite-borne antenna gravity unloading system |
-
2020
- 2020-06-30 CN CN202021250944.1U patent/CN212667708U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113460338A (en) * | 2021-07-02 | 2021-10-01 | 上海航天测控通信研究所 | Multifunctional antenna gravity unloading device |
| CN113725625A (en) * | 2021-07-30 | 2021-11-30 | 西安空间无线电技术研究所 | System and method for unfolding and unloading ultra-long parabolic cylinder antenna |
| CN114056608A (en) * | 2021-11-30 | 2022-02-18 | 北京卫星制造厂有限公司 | Counter weight mechanism and zero-gravity unfolding experimental device |
| CN114194424A (en) * | 2021-12-10 | 2022-03-18 | 清华大学 | Gravity unloading device for satellite gripper and using method thereof |
| CN114194424B (en) * | 2021-12-10 | 2023-10-31 | 清华大学 | Satellite gripper gravity unloading device and application method thereof |
| CN115626308A (en) * | 2022-09-28 | 2023-01-20 | 西安空间无线电技术研究所 | Two-stage unfolding double-shaft tracking satellite-borne antenna gravity unloading system |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210309 |