Embraced type sensor vibration reducing bracket with adjustable installing and pointing accuracy

Abstract

The invention belongs to the field of structure design of a spacecraft assembly, and particularly relates to adjusting measurement of pointing accuracy of a spacecraft sensor as well as auxiliary supporting and vibration reduction of end parts. An embraced type sensor vibration reducing bracket with adjustable installing and pointing accuracy comprises an embraced hoop and adjusting supports, wherein each adjusting support comprises an adjusting screw rod, a supporting seat and a falling-preventing screw, the adjusting screw rod is provided with a locking nut, a wrench is arranged at one end of the adjusting screw rod, the other end is installed in a ring groove in the inner end surface of the supporting seat through the falling-preventing screw, a silica gel shock pad B is arranged on the outer end surface of the supporting seat, and the adjusting support is mounted at a threaded hole in the embraced hoop through the adjusting screw rod. According to the invention, the end parts of the sensor are subjected to auxiliary support, the installing form of the sensor is changed from a cantilever form to a simple support form, so that the mechanical environment of the sensor is improved, and the installation stability is improved; the precision adjusting measurement of a pointing shaft of the sensor can be realized at the accurate measurement stage of the spacecraft assembly.

Description

Technical field [0001] The invention belongs to the field of spacecraft assembly structure design, and specifically relates to the adjustment and measurement of the pointing accuracy of the spacecraft sensor and the auxiliary support and vibration reduction of the end. Background technique [0002] With the development of space science and technology, the requirements for spacecraft capabilities are getting higher and higher, especially the improvement of the mechanical environment of the spacecraft platform for the installation of instruments and equipment and the ability to maintain the stability of the installation of sensors with high-precision pointing requirements. Spacecraft will inevitably endure mechanical environments such as vibration, shock and noise during ground tests and launches. As the basic constraints of the spacecraft assembly structure design, it has always restricted the development of spacecraft platforms towards high precision and high stability. process. ...

AI Technical Summary

Problems solved by technology

[0004] The vibration damping bracket is an important structural form for suppressing and reducing the vibration response of the instrument and equipment installation in the spacecraft assembly design. The existing vibration damping bracket is mainly designed in the form of a damping shock absorber supplemented by an instrument and equipment installation platform. This type of vibration damping bracket It has a good vibration suppression effect for the installation of major equipment. In the design of large-scale deployment antennas in space, the main bearing cylinder of spacecraft and the vibration-damping support of the load-bearing platform, the form of damping shock absorber is mainly used, while for small instruments and equipment , especially the vibration damping support that can provide auxiliary support for the installation of the sensor and has the adjustment and testing of the sensor pointing accuracy, there is no specific structural design at present

Images