High-bearing and low-friction suspension type antenna unloading device

Abstract

The invention provides a high-bearing and low-friction suspension type antenna unloading device. The high-bearing and low-friction suspension type antenna unloading device comprises long air flotationguide rails, short air flotation guide rails, an air supply and distribution system, a double-suspension-bar suspension assembly and a bearing truss. The long air flotation guide rails are arranged on the bearing truss and driven by the air supply and distribution system to move relative to the bearing truss. The two ends of each short air flotation guide rail are arranged on the two corresponding long air flotation guide rails correspondingly, and the short air flotation guide rails are driven by the air supply and distribution system to move relative to the long air flotation guide rails. The double-suspension-bar suspension assembly is connected with the two ends of each short air flotation guide rail in a sliding mode, driven by the air supply and distribution system to move relativeto the short air flotation guide rails and used for achieving suspension of load antennas. By the adoption of the high-bearing and low-friction suspension type antenna unloading device, the long air flotation guide rails and the short air flotation guide rails are driven by the air supply and distribution system, so that linear movement of the double-suspension-bar suspension assembly in the orthogonal direction of the long guide rails is achieved. The double-suspension-bar suspension assembly is connected with satellite radar antennas, so that gravity unloading of the satellite radar antennasis achieved.

Description

technical field [0001] The invention relates to the technical field of satellite AIT, in particular to a high-load-bearing and low-friction suspension antenna unloading device applied to zero-gravity simulation in the installation and deployment of space-borne planar antennas and deployment tests. Background technique [0002] The planar array radar antenna is an important payload in the satellite field. After the satellite is put into orbit, the above-mentioned antenna needs to change from the folded state to the unfolded locked state in the zero-gravity environment of the orbit according to the procedure. These deployments are the key to the success of the satellite mission. Therefore, the ground In the adjustment and deployment tests, a large number of experimental verifications are required for these deployment actions. [0003] Since the kinematic and mechanical properties of all movable joints of the planar array radar antenna are designed according to the on-orbit zer...

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Problems solved by technology

[0006] 2. This method has a narrow scope of application and is only suitable for a type of antenna with a process support interface reserved at the bottom of the radar antenna

[0008] 1. The carrying capacity of this method is low, and it is only suitable for satellite loads with a weight of no more than 50kg, such as solar arrays;

[0009] 2. The air-floating long guide rail of this method is an integral configuration. With the increase of the radar antenna array, the long-span unloading movement range makes the processing and assembly of the long guide rail difficult;

[0012] 5. This method is a single suspension point suspension, which cannot realize the pose adjustment during the antenna assembly process;

[0013] 6. The action line of the unloading force in this method is fixed relative to the antenna, which cannot realize the adaptive adjustment of the hanging force to the centroid position of the antenna, which affects the accuracy of the deployment test

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