A rotary low-impact self-separating pressing and releasing device

A release device and low-impact technology, applied in the field of remote sensing satellites, can solve problems such as sensitivity, payload damage, and large impact, and achieve high rigidity, provide connection stiffness, and high connection stiffness

CN107839906BActive Publication Date: 2019-10-29BEIJING INST OF SPACECRAFT SYST ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-10-29

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Abstract

The invention discloses a rotary low-impact self-separation pressing and releasing device. The upper end of a compressing rod compresses a separation spring onto an upper end cover through a compressing cap, the compressing rod sequentially penetrates through the upper end cover, an upper base, a limiting block and a rotating lock petal, the lower end of the compressing rod is fixedly connected with a separation nut, and the separation nut is fixedly connected with a lower base; a compressing nut is fixed onto the compressing rod and used for limiting rotating motion of the locking petal through a limiting block; an unlocking spring is installed between a stop dog of the rotating lock petal and a stop dog of the upper base, when the device is locked, the separation spring and the unlockingspring are in a pre-compressed state, and tapered teeth at the bottom of the rotating lock petal is occlusive in an over against mode. By means of the rotary low-impact self-separation pressing and releasing device, connected objects at the two ends can be connected and separated and do not move relatively during separation.
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Description

technical field

[0001] The invention relates to the technical field of remote sensing satellites, in particular to a rotary low-impact self-separating compression release device. Background technique

[0002] The pinch release device is often used for connection separation or pinch release between the satellite platform and the payload. Traditional compression and release devices include explosive bolts, separation push rods, pyrotechnic locks, etc. ("Spacecraft Structure and Mechanism", Chen Liemin, China Science and Technology Press, 2005), these traditional pyrotechnic compression and release devices have a large impact, With the development of satellite payload technology, high-precision payloads such as optical cameras are becoming more and more sensitive to impact loads. Traditional pyrotechnic compression and release devices have a greater impact and are prone to damage to payloads when they are unlocked.

[0003] In addition, after the traditional compression and re...

Examples

Embodiment Construction

[0025] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0026] The invention provides a rotary low-impact self-separation compression release device, which comprises a compression rod 1, a compression cap 2, a separation spring 3, an upper end cover 4, a ball cushion 5, an upper base 6, a compression Tight nut 7, limit block 8, rotating lock flap 9, unlocking spring 10, shell 11, lower base 12 and separation nut 13, such as figure 1 shown.

[0027] The bottom of the upper base 6 is provided with three stoppers, which are evenly arranged on the bottom of the upper base 6; the top of the rotary lock flap 9 is provided with three stoppers, which are evenly arranged on the top of the rotary lock flap 9, and the bottom of the rotary lock flap 9 is provided with conical teeth. There are three shaped teeth, and a wedge-shaped groove is provided in the middle of the rotating lock flap 9; the top of the lower base 12 i...