Locking device of bidimensional scanning mechanism

Abstract

The invention discloses a locking device of a spacial bidimensional scanning mechanism. The bidimensional scanning mechanism is applied to the technical field of aerospace engineering. The locking device comprises a base, a baffle block assembly, a pin puller, a rolling element connecting frame and a tension spring. The base is arranged on a foundation bed of the scanning mechanism, and the baffle block assembly, the pin puller and the tension spring are all mounted on the base. One end of the rolling element connecting frame is fixedly connected to the bidimensional mechanism rolling element, and the other end of the rolling element connecting frame is matched with a pin shaft. Baffle blocks are movable parts, and a rotating shaft is a baffle block shaft. When locking is carried out, the pin shaft of the pin puller penetrates through a base bush, a rolling element connecting frame bush and a pin shaft bush and locks the bidimensional mechanism rolling element mutually with the baffle block assembly, and the tension spring is in a tensioning state. When unlocking is carried out, the pin shaft is pulled out, and the baffle blocks move around the baffle block shaft and return to an initial position under the force action of the tensioning spring to achieve the unlocking. The locking device of the bidimensional scanning mechanism is characterized in that the locking device is used for achieving the bidimensional locking of the scanning mechanism. The locking device of the bidimensional scanning mechanism is convenient to demount and mount, simple in structure, safe and reliable, and an effective locking mode for the spacial bidimensional scanning mechanism is provided.

Description

technical field [0001] The invention relates to a locking device of a rotating mechanism, in particular to a locking device of a space two-dimensional scanning mechanism, and belongs to the technical field of aerospace. Background technique [0002] In order to realize large-scale imaging in space, a two-dimensional scanning method is often used, and the scanning in the azimuth and pitch directions is realized through the two-dimensional swing of the scanning mirror. When the satellite is launched, there will be a large impact and disturbance moment on the two-dimensional scanning mechanism. Therefore, the two-dimensional scanning mechanism must be locked before the satellite is launched to protect the precision shafting and scanning mirror of the scanning mechanism from damage. The locking device of the scanning mechanism is one of the key components of the whole mechanism, and the reliability of locking and unlocking is directly related to the success or failure of the sca...

AI Technical Summary

Problems solved by technology

When the explosion bolt is installed, the two connecting parts are fixed together. After the explosion, the two connecting parts are separated from the separation surface into two parts to realize unlocking. It is often used outside the cabin. Considering factors such as pollution and impact, the application on optical instruments is often limited.

The characteristic of electromagnetic locking is that a yoke and a braking surface are added, and two sets of locking devices are required to realize two-dimensional locking, which makes the structure relatively complicated

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