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A space unfolding and retracting linear motion mechanism and a load unfolding and retracting device

A linear motion and driving device technology, which is applied in transportation and packaging, motor vehicles, aerospace equipment, etc., can solve the problems of large screw shaft and nut size, large size of driving devices such as motors, and mechanism jamming, etc., to achieve extended The effect of working time, good maintainability, resource saving and cost saving

Active Publication Date: 2022-05-03
TECH & ENG CENT FOR SPACE UTILIZATION CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the linear motion components of space devices mostly adopt the screw drive mode, and the screw nut is loaded hard, which causes more unnecessary loads and makes the driving devices such as motors larger in size; in addition, in order to adapt to the upward vibration, the screw needs to be larger. Large rigidity, so the size of the screw shaft and the nut are large; in addition, often due to the non-parallel screw or guide rail, under the influence of high and low temperature, the mechanism may be stuck

Method used

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  • A space unfolding and retracting linear motion mechanism and a load unfolding and retracting device
  • A space unfolding and retracting linear motion mechanism and a load unfolding and retracting device
  • A space unfolding and retracting linear motion mechanism and a load unfolding and retracting device

Examples

Experimental program
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Effect test

Embodiment 1

[0047] Such as Figure 1 ~ Figure 4 As shown, a space-expanding linear motion mechanism of this embodiment includes an unfolding platform 100 and an X-axis movement assembly 300. The X-axis movement assembly 300 includes a first slider 311 and a first driving device. The deployment platform 100 is horizontally installed with a first guide rail 301 and a first rack 302, and the drive end of the first drive device is connected with a first drive gear 305 that is fit and meshed with the first rack 302, and the first drive The device is installed on the first slider 311; the first slider 311 is provided with a first roller 306 and a second roller 307, and the first roller 306 and the second roller 307 are respectively slidably connected to the first guide rail On the upper and lower sides of 301, the first slider 311 is also provided with a lever loading device, which is connected with the first roller 306 or the second roller 307 and holds the first roller 306 or the second rolle...

Embodiment 2

[0061] Such as Figure 1 to Figure 9 As shown, a load extension and retraction device of this embodiment includes the space extension and extension linear motion mechanism, and also includes an extension and extension drive mechanism and a locking mechanism. The power part of the extension and extension drive mechanism is installed on two adjacent On one of the unfolding platforms 100 of the two unfolding platforms 100, the transmission gear 104 of the unfolding drive mechanism is rotatably connected to the hinges 122 of two adjacent unfolding platforms 100, and is connected with the other unfolding platform 100; the lock The tightening mechanism includes a latch 125 and a locking assembly 126, and the latch 125 and the locking assembly 126 are respectively installed on two adjacent deployment platforms 100; The gear 104 is connected by transmission and drives the transmission gear 104 to rotate around the hinge 122, and then drives another unfolding platform 100 to rotate aro...

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Abstract

The invention relates to a space expansion and retraction linear motion mechanism and a load expansion and retraction device. The space expansion and retraction linear motion mechanism includes an expansion platform and an X-axis motion assembly, and the X-axis motion assembly includes a first guide rail, a first rack, and a first slider. And the first driving device, the first guide rail and the first rack are horizontally installed on the unfolding platform, the driving end of the first driving device is connected with the first driving gear that fits and meshes with the first rack, the first driving device is installed On the first slider; the first slider is provided with a first roller and a second roller, the first roller and the second roller are respectively slidably connected to the upper and lower sides of the first guide rail, and a lever is also provided on the first slider The loading device, the lever loading device is connected with the first roller or the second roller and provides pre-tightening force for the first roller or the second roller to hug the guide rail. The invention has strong adaptability to the space environment and is beneficial to the smooth and stable operation of the space linear motion.

Description

technical field [0001] The invention relates to the technical field related to space motion, in particular to a space unfolding and retracting linear motion mechanism and a load unfolding and retracting device. Background technique [0002] With the development of space science and space technology and the continuous exploration of space by human beings, more and more space experiments need to be carried out. Especially with the completion of the space station and the explosive growth of the number of satellite launches, the types of space motion devices that space science experiment loads need to rely on are developing in the direction of diversification, basicity, long life, and scalability. Space launch missions have the characteristics of shortage of launch volume, launch weight, power supply, and communication resources. The space environment has environmental characteristics such as high and low temperature alternating, high vacuum, strong radiation, and space debris i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/66B64G1/22
CPCB64G1/66B64G1/222
Inventor 张聚乐王珂张璐吕从民王绍坤刘立坤卫晓娜盛强冯振华
Owner TECH & ENG CENT FOR SPACE UTILIZATION CHINESE ACAD OF SCI
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