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A large load-bearing hot knife type compression release device

A technology of releasing device and pressing rod, applied in the aerospace field, can solve the problems of insufficient bearing capacity, failure to deploy accessories, affecting the deployment function of the accessories, and achieve the effect of avoiding hooking, reducing unlocking power consumption and unlocking time

Active Publication Date: 2019-06-18
BEIJING INST OF SPACECRAFT SYST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are also many problems in the existing non-pyrotechnic compression release device: 1. The bearing capacity is insufficient to meet the requirements of large preload load; Hooking the unfolding attachment will affect the unfolding function of the unfolding attachment, and even cause the attachment to fail to unfold

Method used

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  • A large load-bearing hot knife type compression release device
  • A large load-bearing hot knife type compression release device
  • A large load-bearing hot knife type compression release device

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Embodiment Construction

[0040] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the public implementation manners of the present invention in detail with reference to the accompanying drawings.

[0041] The invention discloses a hot-knife type compression release device with a large load, which adopts a double-segment rope, one end of the double-segment rope is connected and fixed to the reel shaft through a first tapered pin; the reel is fixed on the reel shaft, and the reel The cylinder shaft is installed on the pressing base through a pair of tapered roller bearings; at the same time, the other end of the double-section rope passes through the pressing rod, and is connected and fixed with the drum shaft through the second tapered pin. After passing the compression rod through each compression bushing and the spherical washer on the top compression bushing, use the pre-tightening force application device to tightly ...

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Abstract

The invention discloses a hot-knife-type compression release device with a large load, comprising: a reel rope receiving device, a casing, a compression separation device, a hot-knife module and a double-section rope; the casing includes: sequentially arranged from bottom to top The compression base, the bottom compression bushing, the lower compression bushing, the upper compression bushing and the top compression bushing; The double-segment rope is connected with the reel rope-retracting device; the double-segment rope is arranged inside the housing and contacts the hot knife module; wherein, one end of the double-segment rope is connected with the reel-retracting device; the other end of the double-segment rope is in the After passing through the bottom compression bushing, the lower compression bushing, the upper compression bushing and the rope groove in the top compression bushing in turn, it is wound back through the compression separation device and connected with the reel rope take-up device. The large-load hot-knife compression release device of the present invention can meet the requirement of large preload and is suitable for the expansion of large-size expansion accessories.

Description

technical field [0001] The invention belongs to the field of aerospace technology, and in particular relates to a large-load hot-knife compression release device. Background technique [0002] In the field of aerospace technology, spacecraft compression release devices are widely used. The spacecraft compression release device is used to provide compression constraints for the spacecraft accessories during the launch phase of the spacecraft; after the spacecraft enters orbit, release the constraints on the accessories according to instructions. [0003] At present, in China, the expansion accessories such as solar wings and flat-panel antennas mostly use pyrotechnic compression release devices such as pin pullers or separation nuts. For example, the patent published in 2011: "Foldable rigid and semi-rigid solar wing secondary compression release Mechanism, CN201128483Y”; another example, a patent published in 2014: “Clamping release device for rod antenna, CN104201455A”. H...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64G1/22B64G1/44
CPCB64G1/222B64G1/44
Inventor 黎彪董凯捷王兴泽李端铃李潇从强张从发张浩月李林许怡贤
Owner BEIJING INST OF SPACECRAFT SYST ENG
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