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Spatial telescopic arm based on telescopic screw driving

A screw-driven, arm-extending technology, applied in the aerospace field, can solve the problems of limited rocket space and unavailability, and achieve the effect of reducing the retracting height and avoiding interference

Active Publication Date: 2018-09-21
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that existing rockets cannot provide the space required to accommodate the large-sized space extension arm in the folded state due to the limited space, and then provide a space extension arm driven by a telescopic lead screw

Method used

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  • Spatial telescopic arm based on telescopic screw driving
  • Spatial telescopic arm based on telescopic screw driving
  • Spatial telescopic arm based on telescopic screw driving

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specific Embodiment approach 1

[0033] Specific implementation mode one: combine figure 1 , Figure 10 and Figure 11 Describe this embodiment, a spatial extension arm driven by a telescopic lead screw in this embodiment is characterized in that it includes a synchronous belt drive mechanism 2, an extension arm 6, a fixing plate 8, a connecting plate 9, a base 10, three Stepper motor 1, three telescopic lead screw drive systems 3, three telescopic lead screw in-position locking mechanisms 4, three linear guide rails 5 and three sequential expansion control devices 7, the base 10 is a triangular plate structure, and three fixed plates 8 are evenly distributed on the base 10 along the circumference, and a connecting plate 9 is arranged between two adjacent fixed plates 8 to form a hollow triangular prism-shaped closed structure inside, and three telescopic screw drive systems 3 are evenly distributed on the three sides along the circumference. In the prismatic closed structure, the inner side of each fixed p...

specific Embodiment approach 2

[0035] Specific implementation mode two: combination figure 2 and image 3 Describe this embodiment, the synchronous belt transmission mechanism 2 of this embodiment includes a first synchronous belt transmission unit and three second synchronous belt transmission units, and the three second synchronous belt transmission units are evenly distributed along the circumference on three telescopic screw drives In the upper part of system 3, the first synchronous belt transmission unit is located on the upper part of the three second synchronous belt transmission units. Such setting, on the one hand, the synchronous belt transmission mechanism 2 is used for transmission between the stepper motor 1 and the telescopic screw drive system 3, which avoids interference with the expansion movement of the extension arm 6; on the other hand, three stepper motors 1 drive three A second synchronous belt transmission unit drives the transmission of the first synchronous belt transmission unit...

specific Embodiment approach 3

[0036] Specific implementation mode three: combined diagram Figure 2 to Figure 4Describe this embodiment, each second synchronous belt drive unit of this embodiment comprises the first synchronous pulley 2-1, the 3rd synchronous pulley 2-3 and the first synchronous belt 2-4, the first synchronous pulley 2 -1 is set coaxially with the stepper motor 1, the second synchronous pulley 2-2 is coaxially set with the retractable lead screw in-position locking mechanism 4, between the first synchronous pulley 2-1 and the third synchronous pulley 2-3 Driven by the first synchronous belt 2-4, the first synchronous belt transmission unit includes a second synchronous belt 2-5 and three second synchronous pulleys 2-2, and the second synchronous belt pulley 2-2 is the same as the stepper motor 1 The shaft is set, and the three second synchronous pulleys 2-2 are driven by the second synchronous belt 2-5. So set, the first synchronous pulley 2-1, the second synchronous pulley 2-2 and the th...

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Abstract

The invention provides a spatial telescopic arm based on telescopic screw driving, relates to the technical field of aerospace, and solves the problem that an existing rocket cannot provide space required for containing a large-sized spatial telescopic arm under a contracted state due to limited space. According to the spatial telescopic arm based on the telescopic screw driving, three fixing plates are evenly distributed circumferentially on a base, a connecting plate is formed between each pair of adjacent fixing plates to form a hollow triangular-prism-shaped enclosed structure, three telescopic screw driving systems are respectively evenly arranged in the triangular-prism-shaped enclosed structures, the inner side of each fixing plate is provided with a linear guiding rail, three stepping motors are respectively arranged on the upper portions of the three telescopic screw driving systems, the three stepping motors drive the three telescopic screw driving systems through a synchronous belt transmission mechanism, three telescopic screw in-position locking mechanisms are respectively arranged on the outer sides of the three fixing plates, three sequential unfolding control devices are respectively fixed on the three connecting plates, and extending arms are arranged in the triangular-prism-shaped enclosed structures. The spatial telescopic arm based on the telescopic screw driving is used for improving the folding ratio of the extending arms.

Description

technical field [0001] The invention relates to the field of aerospace technology, in particular to a space extension arm driven by a telescopic lead screw. Background technique [0002] With the deepening of space exploration, the size of man-made spacecraft has also increased. How to support large-scale spacecraft has become a frontier issue in current space technology. Due to its large folding ratio and deployment stiffness, the space extension arm is very suitable for providing support for various spacecraft in space, and can also provide driving force for the deployment of spacecraft components through its deployment process. [0003] The space extension arm is mainly composed of rods and ropes and other slender structures. The rods and ropes are used to form expansion units one by one to make the expansion process modular. The number of expansion units can be increased or decreased according to the needs, and the external conditions can be adjusted accordingly. Very ...

Claims

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Application Information

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IPC IPC(8): B64G1/22
CPCB64G1/222
Inventor 郭宏伟王丰华杨皓宇张蒂刘荣强邓宗全
Owner HARBIN INST OF TECH
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