Two-dimensional development zero-gravity simulation device and method based on constant force spring

Abstract

The invention discloses a two-dimensional development zero-gravity simulation device and method based on a constant force spring. The device comprises a constant force lifting component composed of afixed end mandrel component, a movable end mandrel component, guide sliding rails, a guide rail fixing piece and the constant force spring, a tackle and a longitudinal guide rail; the fixed end mandrel component is fixedly connected with the guide sliding rails; the guide sliding rails penetrate through guide sliding blocks on the movable end mandrel component in a sliding mode; the bottom ends ofthe guide sliding rails are fixedly connected with the guide rail fixing piece; the constant force spring is installed between the fixed end mandrel component and the movable end mandrel component; and the upper end of the constant force lifting component is fixedly connected with the tackle, and the tackle is installed on the longitudinal guide rail and can horizontally move along the longitudinal guide rail. The problem that ground two-dimensional development zero-gravity simulation is difficult for existing aerospace mechanism products is solved, and the device has the beneficial effects of being high in response speed, small in additional mass, small in additional resistance, small in system energy loss and the like.

Description

technical field [0001] The invention belongs to the technical field of zero-gravity simulation of aerospace engineering, and in particular relates to a two-dimensional unfolded zero-gravity simulation device and method based on constant force springs. Background technique [0002] Before the products of space agencies are launched, they need to conduct microgravity simulation tests on the ground to verify their various functions and performance indicators. The microgravity simulation schemes of horizontal two-dimensional movement have relatively mature applications, while the vertical three-dimensional movement is usually realized by means of pulley counterweight and balloon method. The two unloading methods will affect the test results and accuracy. [0003] According to the requirements of the zero-gravity simulation test on the ground of mechanism products, the functions and performance indicators of the mechanism are verified. The traditional zero-gravity deployment me...

AI Technical Summary

Problems solved by technology

The pulley counterweight scheme introduces a large additional inertia and additional resistance distance to the product movement process, which has a certain impact on the product deployment time. When the speed is reversed, the system energy loss is large, which affects the accuracy of the zero-gravity simulation test results.

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