A kind of self-adaptive balance flip-up umbrella

Abstract

The invention relates to a pop-up parachute capable of realizing self-adaptive equilibrium. The pop-up parachute comprises a parachute hatch cover, connection rollers, a hatch cover connecting band, a rotary connector, a hatch cover parachute connecting band, a hanging ring, speed-reduction parachute pack traction bands, a speed-reduction parachute pack and a hatch cover parachute body, wherein three connection rollers capable of rotating freely are uniformly distributed and mounted on the parachute hatch cover; one end of the hatch cover connecting band is divided into three branches and connected with the parachute hatch cover through the connection rollers; the hatch cover connecting band is connected with the hatch cover parachute connecting band through the rotary connector; one end of the hatch cover parachute connecting band is connected onto the rotary connector, the other end of the hatch cover parachute connecting band is provided with connection branches, one connection branch is connected to the hatch cover parachute body packed in the speed-reduction parachute pack, and the other connection branch enables the hatch cover parachute connecting band to be connected with the speed-reduction parachute pack traction bands on the speed-reduction parachute pack through the hanging ring. The self-adaptive attitude stability of the parachute hatch cover is realized, so that the parachute hatch cover can fall freely in a certain attitude after separated from the speed-reduction parachute pack, a good work condition is created for opening of the speed-reduction parachute, and the work reliability of a recovery system is improved.

Description

technical field [0001] The invention belongs to the technical field of recovery and landing, and in particular relates to an adaptive balanced flip-top umbrella, which is applied to the recovery sub-system of the third-phase return device of the lunar exploration project, and can also be expanded and applied to the flip-top pull umbrella design of other aircraft recovery systems. Background technique [0002] The return device of the third phase of the lunar exploration project is the first detector in my country to use semi-ballistic jumping to return after deep space exploration. In order to make the return device land safely, when the return device is decelerated by its own aerodynamic shape, it needs to use a parachute to further reduce the speed. The aerodynamic shape of the return device is basically scaled down from the return capsule of the Shenzhou spacecraft, and the parachute opening method is similar to that of the Shenzhou spacecraft, using the parachute opening ...

AI Technical Summary

Problems solved by technology

[0003] Generally, the design of the umbrella cover of the spaceship is that only one lifting lug is arranged on the canopy cover, and it is directly connected with the parachute bag through a connecting belt. This kind of design form can also be applicable, and when the ratio of the quality of the canopy cover and the quality of the canopy cover is too large, if the design of the canopy cover pulls the canopy bag and adopts the design of the general spaceship, it will lead to the failure of the canopy cover. The dynamic characteristics of the parachute bag have changed a lot. Both the simulation research and the ground test show that the general spaceship bomb cover pull-up bag design is used, and the canopy cover will roll violently during the process of pulling the deceleration parachute, which may affect the normal operation of the deceleration parachute. open umbrella

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