Linear motion device for weightless environment

A linear motion and environmental technology, applied in transmission, electromechanical devices, transportation and packaging, etc., can solve the problems of high precision in installation and processing, difficulty in long-distance transmission, affecting life and reliability, etc., and achieve good sliding effect, The effect of large stroke and strong carrying capacity

Pending Publication Date: 2020-11-17
SHANGHAI AEROSPACE SYST ENG INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The screw transmission is a precision fit, which requires high precision for installation and processing, and it is difficult to achieve long-distance transmission
[0007] Chain, belt or rope transmission, simple structure, bendable, low installation requirements, suitable for linear transmission in open space, but there are problems such as tension design, long-distance transmission link design, etc. that affect life and reliability

Method used

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  • Linear motion device for weightless environment
  • Linear motion device for weightless environment
  • Linear motion device for weightless environment

Examples

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Embodiment Construction

[0040] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that the drawings are all in a very simplified form and use imprecise ratios, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0041] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0042] see Figures 1 to 4 , the core of the present invention is to provide a linea...

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Abstract

The invention discloses a linear motion device for a weightless environment. The device comprises a first main body, a second main body and a compression assembly, wherein the first main body is rotatably connected with a first roller, the first roller rotates through a driving assembly, the second main body is fixedly provided with a linear guide assembly, the first roller is arranged on the linear guide assembly and can roll along the linear guide assembly to drive the first main body to perform linear motion, two ends of the compression assembly are respectively connected to the first mainbody and the second main body, the compression assembly is slidably connected to the first main body and/or the second main body, and the compression assembly generates opposite pressure on the firstmain body and the second main body at the same time so that the pressure is generated between the first roller and the linear guide assembly, and the first roller generates a friction through the pressure during rotation to enable the first roller to roll. The device does not depend on gravity, and is stable in movement, small in size and large in stroke.

Description

technical field [0001] The invention belongs to the technical field of linear motion mechanisms, and in particular relates to a linear motion device used in a weightless environment. Background technique [0002] Linear reciprocating motion devices often convert rotational motion into linear motion, and in aerospace and other space gravity-free fields, linear reciprocating motion devices need to maintain normal work in a weightless environment. [0003] The linear reciprocating motion devices used in the weightless environment include: connecting rod mechanism, rack and pinion mechanism, screw transmission mechanism, belt chain transmission mechanism and rope transmission, etc. [0004] Connecting rod mechanisms, such as slider crank mechanism, Posselier-Lipkin mechanism, Salus mechanism, Hawken mechanism, etc., have the advantages of simple lubrication, strong designability, low cost, strong bearing capacity, and reliable operation. , but it has problems such as small stro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H37/12H02K7/06B64G1/22
CPCB64G1/22F16H37/124H02K7/06
Inventor 姜强崔琦峰王栋梁程庆清殷爱平李舒扬王晓凯杜江华
Owner SHANGHAI AEROSPACE SYST ENG INST
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