Landing signal device for landing buffer mechanism

Abstract

The invention discloses a landing signal device for a landing buffer mechanism. The device comprises a triggering transmission component, an upper-end triggering component, a lower-end triggering component and a triggering signal transmission component. The device is strong in terrain adaptation capacity and reliable to trigger; the upper triggering component is provided with a reserved initial gap in a transmission path of a landing impact load and properly amplifies the gap according to a lever principle to serve as a triggering stroke of a microswitch, the lower-end triggering component uses local deformation which may be generated when being impacted with a landing surface to serve as the triggering stroke of the microswitch; two triggering mechanisms act at the same time, reliable triggering within a range of 90 degrees to -90 degrees of an included angle between landing speed and the normal of a landing surface can be basically achieved, and the terrain adaptation capacity and the triggering reliability of the landing signal device are effectively improved.

Description

technical field [0001] The invention relates to a landing signal device for a landing buffer mechanism, which belongs to the field of spacecraft mechanisms. Background technique [0002] The landing buffer mechanism is an important component for a spacecraft to achieve a successful soft landing. Generally speaking, the landing buffer mechanism is mainly composed of main pillars, auxiliary pillars and foot pads. When the actual flight is close to the landing surface, in order to avoid the adverse effect of the reflected plume of the main engine on the soft landing, the main engine is usually turned off at a certain distance above the scheduled landing point, so that the spacecraft falls freely under the action of gravity and impacts on the landing surface , and the landing impact energy is absorbed by the landing buffer mechanism; at the same time, a landing signal is given when the foot pad touches the landing surface, which is used as the basis for judging the landing of t...

AI Technical Summary

Problems solved by technology

This device has a certain reaction time from the trigger signal to the foot pad touching the lunar surface, which is more suitable for manned spacecraft, but the bent or broken probe may have an adverse effect on the foot pad slippage, and the overall geometric size is relatively large , there are many links between folding, compressing and unfolding in place

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