A buffer deceleration device for a spacecraft turning mechanism

Abstract

The invention discloses a buffering decelerating device of an overturning mechanism of a spacecraft. The overturning mechanism of the spacecraft comprises a machine frame housing and a rotor arm, wherein the machine frame housing adopts a semicircle structure; the rotor arm is rotatably connected to the machine frame housing; the buffering decelerating device comprises a decelerating adjusting block and one or more decelerating baffle plates; the decelerating baffle plates are mounted on the machine frame housing; the decelerating adjusting block can be movably mounted on the rotor arm in a radial direction; and the decelerating adjusting block can extend the rotor arm under the effect of the centrifugal force to be in matching contact with the decelerating baffle plates. Through the adoption of the buffering decelerating device of the overturning mechanism of the spacecraft disclosed by the invention, not only working conditions of which the rotating speed of the overturning mechanism of the spacecraft is greatly changed can be adapted, but also the targeting accuracy of the overturning mechanism of the spacecraft is not influenced.

Description

technical field [0001] The invention relates to the application field of spacecraft, in particular to a buffer and deceleration device for a turning mechanism of a spacecraft. Background technique [0002] In the existing spacecraft overturning mechanism, broken ropes, rubber pads and honeycomb cushions are usually used as the buffer deceleration devices; when the buffer deceleration device of the spacecraft overturning mechanism adopts broken ropes, since the broken ropes pass through the control force When the turning speed of the spacecraft turning mechanism fluctuates greatly, in order to make the turning arm rotate normally, the turning arm can also break the broken rope at the minimum speed, that is, the broken rope can only be broken according to the rotation of the turning arm. The lower limit design, but when the speed fluctuates greatly and the speed is large, the deceleration effect of the broken rope is greatly weakened, so the applicable range of the broken rope...

AI Technical Summary

Problems solved by technology

[0002] In the existing spacecraft overturning mechanism, broken ropes, rubber pads and honeycomb cushions are usually used as the buffer deceleration devices; when the buffer deceleration device of the spacecraft overturning mechanism adopts broken ropes, since the broken ropes pass through the control force When the turning speed of the spacecraft turning mechanism fluctuates greatly, in order to make the turning arm rotate normally, the turning arm can also break the broken rope at the minimum speed, that is, the broken rope can only be broken according to the rotation of the turning arm. The lower limit design, but when the speed fluctuates greatly and the speed is large, the deceleration effect of the broken rope is greatly weakened, so the applicable range of the broken rope is small, and it is not suitable for the working condition with a large change in the turning speed; when the buffer of the spacecraft turning mechanism When the deceleration device uses rubber pads or honeycomb buffer pads, it is difficult to control the thickness change after impact due to the rubber pads and honeycomb buffer pads have certain elasticity, so it is difficult to guarantee the positioning accuracy of the turning mechanism

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