A coil spring-driven wire rope winding mechanism based on pulley group rope arrangement

Abstract

The invention relates to a coil-spring-driven steel wire rope winding mechanism for arranging a rope based on a pulley block and relates to the field of steel wire rope winding mechanisms for manned spaceflight space environments. The coil-spring-driven steel wire rope winding mechanism comprises a locking rod, a pawl, the rope-arranging assisting pulley block, a winding drum, a scroll spring, a transmission gear pair, a spindle, a pushing shaft and a ratchet wheel; the spindle is vertically located in the middle of the winding mechanism; a driven gear of the transmission gear pair is mountedon the outer wall of the spindle in a sleeving mode; the scroll spring and a driving gear of the transmission gear pair are coaxially and fixedly connected; the locking rod is arranged at the upper end of the pushing shaft in a mode of being perpendicular to the pushing shaft; the pawl is arranged at the lower end of the pushing shaft in a mode of being perpendicular to the pushing shaft; the winding drum is mounted on the outer wall of the spindle in a sleeving mode; the pawl is connected with the ratchet wheel in a matched mode; and the rope-arranging assisting pulley block is arranged on the outer side of the winding drum in an encircling mode. The steel wire rope can be wound orderly by multiple layers and multiple circles; the pulley block is simple in structure and small in occupiedspace; the steel wire rope winding mechanism can have a one-way movement working mode and a two-way movement working mode and adapts to the vacuum space environment, the high temperature space environment, the low temperature space environment and the like.

Description

Technical field [0001] The invention relates to the field of steel wire rope winding mechanisms for manned aerospace environments, in particular to a spring-driven steel wire rope winding mechanism based on rope arranging in a pulley block. Background technique [0002] With the rapid development of my country's aerospace technology and the steady progress of the Shenzhou spacecraft series of missions and space station construction tasks, Chinese astronauts will face frequent on-orbit and de-vehicle tasks, such as exiting the capsule for equipment maintenance. One of the necessary tools for astronauts to exit the capsule is the safety tether, which can ensure the reliable connection between the astronaut and the spacecraft. [0003] The safety tether used by astronauts out of the cabin is divided into two types: fixed-length safety rope and retractable safety rope (length adjustable). my country has developed mature products with fixed-length safety tethers, but there are no mature...

AI Technical Summary

Problems solved by technology

Because the fixed-length safety rope with a length of several meters or even longer is difficult to control in the space environment, and it may even entangle the astronauts, causing the astronauts to go out of the cabin at a long distance is very inconvenient. The demand is getting stronger and stronger, and it is urgent to develop retractable safety rope products according to the progress of my country's space missions

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