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

A constant-force spring and two-dimensional unfolding technology, which is applied to the simulation device of space navigation conditions, transportation and packaging, space navigation equipment, etc., can solve problems such as large additional inertia, affecting the accuracy of zero-gravity simulation tests, and large energy loss , to achieve the effects of small system energy loss, small additional mass, and fast speed response

CN108408088AActive Publication Date: 2018-08-17BEIJING SATELLITE MFG FACTORY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-08-17

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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.
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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...

Examples

Embodiment Construction

[0034] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the public implementation manners of the present invention in detail with reference to the accompanying drawings.

[0035] The two-dimensional unfolding zero-gravity simulation scheme based on constant-force springs disclosed in the present invention overcomes the problems of large additional inertia, complex system, and slow system response introduced by traditional zero-gravity simulation deployment methods for space mechanism products. It solves the problem of two-dimensional zero-gravity simulation on the ground of existing space agency products. Among them, the constant force spring is a contact-shaped scroll spring whose output load (tension) is basically kept constant with the increase of deformation. It has good dynamic response, constant load, high energy storage density, small volume, and low friction loss. Etc. In the free sta...