A landing ladder with dual functions of unfolding and retracting

A dual-function, landing ladder technology, applied in the aerospace field, can solve problems such as complex structure and high quality of landing ladders, and achieve the effect of solving high quality and reducing consumption

Active Publication Date: 2020-11-06
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention aims to propose a landing ladder with dual functions of unfolding and retracting, so as to solve the problems of large mass and complex structure of existing landing ladders

Method used

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  • A landing ladder with dual functions of unfolding and retracting
  • A landing ladder with dual functions of unfolding and retracting
  • A landing ladder with dual functions of unfolding and retracting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as Figure 1-3 As shown, a landing ladder with dual functions of unfolding and retracting includes a main ladder structure 1, a locking mechanism 3 and a rotating retracting mechanism 2; the main ladder structure 1 has a shape memory effect, and the main ladder structure 1 includes a first end and a second end. The two ends; the rotary retracting mechanism 2 is connected to the first end, and the rotary retracting mechanism drives the first end to rotate; the locking structure is detachably connected to the second end, and the locking mechanism 3 is used to lock or release the second end;

[0038] In this embodiment, the main ladder structure 1 can be unfolded or curled; in the state where the locking mechanism 3 locks the second end, the main ladder structure 1 is curled on the first end or the second end; when the locking mechanism 3 releases the second end Next, the main ladder structure 1 is unfolded. As a result, the main ladder structure 1 cooperates with th...

Embodiment 2

[0041] Such as figure 1 , 2 , 3, compared with the above embodiment, the main ladder structure 1 in this embodiment includes a beam 12, a first connecting rod 13, a second connecting rod 15 and a pod rod 11 made of shape memory polymer composite material.

[0042] There are two pod bars 11, one end of each pod bar 11 is connected to a connector 14, and the other end is connected to a loader 16; the two ends of the first connecting bar 13 respectively pass through a connector 14, and the connector 14 and the second A connecting rod 13 constitutes the first end, and the connector 14 is connected to the rotary retracting mechanism 2; the two ends of the second connecting rod 15 respectively pass through a loader 16, and the end of the loader 16 away from the second connecting rod 15 is provided with an auxiliary rod 161 , the loader 16 and the second connecting rod 15 form the second end, the loader 16 is connected to the locking mechanism 3 through the auxiliary rod 161; the be...

Embodiment 3

[0049] Such as Image 6 As shown, compared with the above-mentioned embodiments, the locking mechanism 3 in this embodiment includes a base 31 , a screw slide mechanism 32 , a third driving motor 33 , a support base 34 , a transmission shaft 35 and a rotating support 36 .

[0050] The screw slide mechanism 32 is arranged on the base 31; the support seat 34 is arranged on the slide table 322 of the screw slide mechanism 32; the third drive motor 33 is arranged on the support seat 34; the transmission shaft 35 is connected to the third drive motor 33, the transmission shaft 35 is provided with a screw 351; the rotating support 36 is provided with a support body 361 and a rotating block 362, and the supporting body 361 is provided with a draw-in groove 363 for engaging the second end; one end of the rotating block 362 is of a rotary type Connecting the support body 361 , the rotating block 362 opens and closes the locking slot 363 through the screw 351 , thereby locking and relea...

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PUM

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Abstract

The invention provides a landing ladder having the dual functions of unfolding and take-back. The landing ladder comprises a main ladder structure, a locking mechanism and a rotary take-back mechanism; the main ladder structure has a shape memory effect and comprises a first end and a second end; the rotary take-back mechanism is connected with the first end and drives the first end to rotate; thelocking mechanism is detachably connected with the second end and locks or unlocks the second end, wherein the main ladder structure can be unfolded or taken back and is curled at the first end or the second end when the locking mechanism locks the second end, and the main ladder structure is unfolded when the locking mechanism unlocks the second end. The main ladder structure is matched with thelocking mechanism and the rotary take-back mechanism to realize unfolding and curling, and the problems are solved that in a traditional design, mass is large, and the structure is complex.

Description

technical field [0001] The invention relates to the aerospace field, in particular to a landing ladder with dual functions of unfolding and retracting. Background technique [0002] The landing ladder is an integral part of the landing system of the lunar exploration project and other deep space exploration programs (such as the fire detection program). Exploration vehicles or astronauts need to pass the landing ladder to successfully reach the surface of the satellite or planet. , Whether the landing ladder can be released and launched smoothly affects the success or failure of the exploration plan. Therefore, it is of great significance to the development of aerospace technology to design a landing ladder with light weight, simple working process and high deployment reliability. At present, various forms of landing ladder schemes have been proposed. The types of these landing ladders include pop-up type, folding type, and cantilever type. , Drive motor power and other di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/22
CPCB64G1/222
Inventor 刘彦菊冷劲松刘立武曾成均
Owner HARBIN INST OF TECH
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