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Hatch cover opening-closing executing mechanism for spacecraft

A technology for actuators and spacecraft, applied in the field of spacecraft, can solve problems such as unusable and large motion envelope space, and achieve the effects of saving space, compact structure design, and simple motion control process

Inactive Publication Date: 2013-03-20
BEIJING INST OF SPACECRAFT SYST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The hatch mechanism of many spacecraft adopts the shell-type opening method. Although the opening angle is large, the motion envelope space is also large. Use under

Method used

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  • Hatch cover opening-closing executing mechanism for spacecraft
  • Hatch cover opening-closing executing mechanism for spacecraft
  • Hatch cover opening-closing executing mechanism for spacecraft

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Such as figure 1 As shown, the present invention mainly consists of hatch shaft 1, sleeve 2, leading screw 3, front guide pin 4, rear guide pin 15, nut 6, long top wire I7, bearing sleeve 8, angular contact ball bearing 9, intermediate pad Sheet 10, adjusting washer 11, preload washer 12, preload nut 13, short top wire 14, rear guide pin II15, long top wire II16;

[0019] Among them, the outer circle of the sleeve 2 is axially provided with an "L"-shaped groove and a "one"-shaped groove, the horizontal side of the "L"-shaped groove is located above the sleeve 2, and the "one"-shaped groove and " The vertical sides of the L”-shaped groove are centrally symmetrical;

[0020] There are two symmetrical spiral grooves inside the lower half of the cylindrical surface of hatch shaft 1;

[0021] The hatch shaft 1 and the sleeve 2 ar...

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Abstract

The invention discloses a hatch cover opening-closing executing mechanism for a spacecraft, and belongs to the technical field of spacecrafts. The hatch cover opening-closing executing mechanism for the spacecraft is mainly composed of a hatch cover shaft, a sleeve, a lead screw, a nut, a guide pin and the like. Rotational motion of the lead screw is transformed to rotational and displacement motion of a hatch cover, and the rotational and displacement motion is conducted in sequence, so that the hatch cover is closed or opened, appearance integrity of the spacecraft is guaranteed, and load security of a cabin is protected. The hatch cover opening-closing executing mechanism for the spacecraft is compact and reliable in structure and small in influencing by space environment, such as temperature alternating and electromagnetic irradiation.

Description

technical field [0001] The invention relates to a switch hatch actuator for a spacecraft, belonging to the technical field of spacecraft. Background technique [0002] A spacecraft, especially an unmanned spacecraft, needs to transfer the collected samples into the spacecraft after collecting extraterrestrial celestial body samples. Therefore, it is necessary to set up a hatch mechanism to close the hatch after the sample is transferred into the spacecraft to protect the collected samples and ensure the integrity of the spacecraft. In addition, there are many intermittently working devices on the spacecraft that need to be provided with protective covers, which are opened during working hours and closed for protection during non-working hours. [0003] The hatch mechanism of many spacecraft adopts the shell-type opening method. Although the opening angle is large, the motion envelope space is also large. use below. Contents of the invention [0004] In view of this, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C1/14
Inventor 孙国鹏王宁李委托欧阳平超
Owner BEIJING INST OF SPACECRAFT SYST ENG
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