CN-117733553-B - Assembly method of satellite high-precision magnetic levitation key cabin section

CN117733553BCN 117733553 BCN117733553 BCN 117733553BCN-117733553-B

Abstract

The invention provides a general assembly method of a satellite high-precision magnetic suspension key cabin section, which comprises the following steps of mounting an I-shaped positioning block on a lower cabin plate, enabling the I-shaped positioning block to replace a magnetic suspension mechanism to participate in general assembly, mounting an upper cabin plate on the I-shaped positioning block, positioning and mounting an L-shaped positioning block between the lower cabin plate and the upper cabin plate, mounting a fire tool device simulation piece between the lower cabin plate and the upper cabin plate, removing the fire tool device simulation piece, the I-shaped positioning block and the L-shaped positioning block, and performing a general assembly method, wherein the L-shaped positioning block is reset and mounted on the lower cabin plate, and the upper cabin plate and the L-shaped positioning block are fastened and mounted. When in formal assembly, the L-shaped positioning blocks are reset and installed, so that the requirement on precision between cabins can be met, when the key cabin sections need to be repeatedly assembled and disassembled, the method can be used for enabling the reset precision to meet the requirement, ensuring the repeated assembly and disassembly precision of the cabin plates, guaranteeing the ground verification test conditions and ensuring the realization of the functions of the key cabin sections on the ground.

Inventors

WU YUEYING
SHAN LEI
XIA DANHUA
XIANG BIN
SHEN LEIJIE
HUANG YAZHONG
LI CHANGJUN
XIANG CHAO
YAO PENG
Lv you

Assignees

上海卫星装备研究所

Dates

Publication Date: 20260512
Application Date: 20231228

Claims (7)

1. The general assembly method of the satellite high-precision magnetic levitation key cabin section is characterized by comprising the following steps of: The primary key cabin assembly method comprises the steps of installing an I-shaped positioning block (3) on a lower cabin plate (1), enabling the I-shaped positioning block (3) to replace a magnetic levitation mechanism to participate in assembly, installing an upper cabin plate (2) on the I-shaped positioning block (3), positioning and installing an L-shaped positioning block (4) between the lower cabin plate (1) and the upper cabin plate (2), and installing a fire tool simulation piece (5) between the lower cabin plate (1) and the upper cabin plate (2); Dismantling the fire tool simulation piece (5), the I-shaped positioning block (3) and the L-shaped positioning block (4); the formal assembly method comprises the steps of resetting and installing an L-shaped positioning block (4) on a lower cabin plate (1), and fastening and installing an upper cabin plate (2) and the L-shaped positioning block (4); determining the mounting surface of a magnetic levitation mechanism on a lower cabin plate (1) as a mounting reference surface, mounting an I-shaped positioning block (3) on the mounting reference surface through a fastener, enabling the I-shaped positioning block (3) to replace the magnetic levitation mechanism to participate in assembly, placing an upper cabin plate (2) on the I-shaped positioning block (3), measuring a gap between each I-shaped positioning block (3) and the upper cabin plate (2), enabling the I-shaped positioning block (3) to be attached to the upper cabin plate (2) through fine adjustment, enabling the parallelism and symmetry of the lower cabin plate (1) and the upper cabin plate (2) to meet required values, and fastening the I-shaped positioning block (3) and the upper cabin plate (2) through the fastener after the required values are met through fine adjustment; The mounting surface of the lower cabin of the L-shaped positioning block (4) is attached to the lower cabin plate (1), the mounting surface of the upper cabin of the L-shaped positioning block (4) is attached to the upper cabin plate (2), the L-shaped positioning block (4) is connected and fastened with the lower cabin plate (1) by using a fastener, an adjustable patch is slid until the patch is attached to the lower surface of the upper cabin plate (2), after the mounting is completed, the adjustable patch is connected and fastened with the L-shaped positioning block (4) by using the fastener through an adjustable patch mounting hole, and pin hole matching is carried out on the lower cabin plate (1) through a reset pin hole on the L-shaped positioning block (4); The formal installation method comprises the steps of installing an L-shaped positioning block (4) on a lower cabin plate (1), resetting the L-shaped positioning block (4) by using a resetting pin hole, placing an upper cabin plate (2) on the L-shaped positioning block (4), enabling an adjustable patch attaching surface to be attached to the lower surface of the upper cabin plate (2), attaching the side surface of the upper cabin plate (2) to an upper cabin installing surface of the L-shaped positioning block (4), and connecting and fastening the L-shaped positioning block (4) with the upper cabin plate (2) through an upper cabin installing hole of the L-shaped positioning block (4) by using a fastener.
2. The method for assembling the satellite high-precision magnetic levitation key cabin section according to claim 1, wherein the number of the magnetic levitation mechanisms is determined according to the magnetic levitation force required by the cabin space of the magnetic levitation cabin section, and the magnetic levitation mechanisms are symmetrically and uniformly distributed between the two cabin plates.
3. The method for assembling the satellite high-precision magnetic levitation key cabin section according to claim 2, wherein interfaces and precision of the I-shaped positioning blocks (3) and the magnetic levitation mechanisms are kept consistent, the layout and the number of the I-shaped positioning blocks (3) are consistent with the installation layout and the number of the magnetic levitation mechanisms, and after the subsequent precision is adjusted in place, the I-shaped positioning blocks (3) are replaced with the magnetic levitation mechanisms.
4. The method for assembling the satellite high-precision magnetic levitation key cabin section according to claim 1, wherein a gap between an upper cabin installation surface of the I-shaped positioning block (3) and an installation surface of the upper cabin plate (2) is smaller than 0.02mm.
5. The method for assembling the satellite high-precision magnetic levitation key cabin section according to claim 1, wherein the parallelism and symmetry between the lower cabin board (1) and the upper cabin board (2) are measured by using a three-coordinate machine, and the parallelism is adjusted by pasting copper foil with corresponding thickness on the mounting surface of an I-shaped positioning block (3) of the upper cabin board (2) or scraping the mounting surface of a magnetic levitation mechanism of the upper cabin board (2).
6. The method for assembling the satellite high-precision magnetic levitation key cabin section according to claim 1, wherein the interface and the precision of the fire tool simulation piece (5) and the fire tool device are kept consistent, the fire tool device keeps the fixation between the two cabins in the launching process, and the fire tool device is symmetrically distributed at the periphery and the middle position of the upper cabin plate (2).
7. The method for assembling the satellite high-precision magnetic levitation key cabin section according to claim 1, wherein the upper cabin installation hole of the L-shaped positioning block (4) is designed as a waist-shaped hole and is used for adjusting the inter-cabin space, and the adjustment process keeps the state that the side surface of the upper cabin plate (2) is always attached to the upper cabin installation surface of the L-shaped positioning block (4).

Description

Assembly method of satellite high-precision magnetic levitation key cabin section Technical Field The invention relates to a satellite assembly method, in particular to a satellite high-precision magnetic levitation key cabin assembly method. Background Most of structural designs of traditional satellites are hard connection modes of structural plates and trusses, and along with the gradual increase of the requirements of satellite loads on installation environments, the traditional structural forms cannot meet the use requirements of the traditional satellites, so that a key technical cabin section for realizing dynamic and static isolation of upper cabin plates and lower cabin plates by means of a magnetic levitation mechanism is derived and used for meeting the requirements of the load installation environments. The key cabin sections have extremely high requirements on the installation precision between cabins in the ground test stage, and in order to complete related ground test projects, the key cabin sections need to be disassembled and assembled for multiple times, and the precision after the disassembly and assembly needs to be guaranteed to meet the requirements. The prior Chinese patent application document with the bulletin number of CN107792393B discloses a master-slave non-contact embedded satellite ground verification system and a verification method thereof, the system comprises a load cabin and a platform cabin, dynamic and static isolation is realized through a non-contact magnetic levitation mechanism, a double three-degree-of-freedom air floatation system is built, the active air floatation systems of the load cabin and the platform cabin are similar, the load cabin and the platform cabin are respectively independent to form the double three-degree-of-freedom air floatation system, a single active air floatation is provided with an air bottle, a control valve and a plane bearing, and the cabin body is floated by means of an air film formed between the air bearing and a bearing seat by compressed air, so that the approximately friction-free relative motion condition is realized, the platform cabin is floated by adopting four plane air feet to simulate a mechanical environment with small translational interference moment in an outer layer space, the load cabin and the platform cabin are respectively floated by respective air floatation, and the load cabin can realize small-degree-of-freedom rotation in the direction X, Y through the magnetic levitation mechanism, and double three-degree-of-freedom motion can be realized. In the installation method in the prior art, in the process of repeated disassembly and assembly, the repeated disassembly and assembly precision of the key cabin section is difficult to ensure, and the problem to be improved exists. Disclosure of Invention Aiming at the defects in the prior art, the invention aims to provide a final assembly method of a satellite high-precision magnetic levitation key cabin. The invention provides a general assembly method of a satellite high-precision magnetic levitation key cabin section, which comprises the following steps of mounting an I-shaped positioning block on a lower cabin plate, enabling the I-shaped positioning block to participate in general assembly instead of a magnetic levitation mechanism, mounting an upper cabin plate on the I-shaped positioning block, positioning and mounting an L-shaped positioning block between the lower cabin plate and the upper cabin plate, mounting a fire tool device simulation piece between the lower cabin plate and the upper cabin plate, removing the fire tool device simulation piece, the I-shaped positioning block and the L-shaped positioning block, and performing a general assembly method, wherein the L-shaped positioning block is reset and mounted on the lower cabin plate, and the upper cabin plate and the L-shaped positioning block are fastened and mounted. Preferably, the installation surface of the magnetic levitation mechanism on the lower cabin plate is determined to be an installation reference surface, an I-shaped positioning block is installed on the installation reference surface through a fastener to replace the magnetic levitation mechanism to participate in assembly, the upper cabin plate is placed on the I-shaped positioning block, the gap between each I-shaped positioning block and the upper cabin plate is measured, the I-shaped positioning block is attached to the upper cabin plate through fine adjustment, and the I-shaped positioning block is fixedly connected with the upper cabin plate through the fastener after the parallelism and symmetry degree of the lower cabin plate and the upper cabin plate meet required values through fine adjustment. Preferably, the number of the magnetic levitation mechanisms is determined according to the magnetic levitation force required by the magnetic levitation cabin section, and the magnetic levitation mechanisms are symmetrically and uniform