Controllable step-by-step unlocking device applied to spacecraft
A technology for unlocking devices and spacecraft, which is applied to the docking devices of space navigation vehicles, equipment for space navigation, and aircraft for space navigation, etc., can solve the problems of large shock response, high cost, large consumption of unlocking devices, etc. High reliability and high reusability
Active Publication Date: 2018-11-13
SHANGHAI SATELLITE ENG INST
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Problems solved by technology
Among them, the pyrotechnic unlocking device consumes a lot of energy and has a large impact response, and it is a one-time unlocking; the memory alloy needs to be heated on the rail, causing the phase change of the functional material to achieve unlocking, but it is difficult to control the unlocking sequence; the unlocking method of cutting the rope with a hot knife also faces challenges. above question
Therefore, on the one hand, traditional on-board unlocking devices are expensive, and most of them are single-use; on the other hand, it is difficult to control the unlocking sequence
Method used
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[0019] The present invention will be described in detail below in conjunction with specific embodiments.
[0020] Such as figure 1 As shown, the embodiment of the present invention provides a controllable step-by-step unlocking device applied to spacecraft, including a special-shaped screw 1, a locked plate A2, a locked plate B3, a locked plate C4, a locked plate D5, and a guide end Cover 6, outer cylinder 7, guide sleeve 8, stepper motor 9, bearing 10 and compression nut 11; guide sleeve 8 is movably installed in outer cylinder 7 through bearing 10, and the lower end is connected with the rotating shaft end of stepper motor 9, The upper end is movably connected with the special-shaped screw 1, one end of the special-shaped screw 1 is movably set in the guide sleeve 8, the other end passes through the guide end cover 6, and is sequentially connected with the locked plate D5, the locked plate C4, and the locked plate through the compression nut 11. Board B3 is connected by loc...
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The invention discloses a controllable step-by-step unlocking device applied to a spacecraft. The controllable step-by-step unlocking device comprises a special-shaped screw, a locked plate A, a locked plate B, a locked plate C, a locked plate D, a guiding end cover, an outer cylinder, a guiding sleeve, a stepper motor, a bearing and compaction nuts. The guiding sleeve is movably mounted in the outer cylinder through a bearing, the lower end of the guiding sleeve is connected with the rotating shaft end of the stepper motor, and the upper end of the guiding sleeve is movably connected with thespecial-shaped screw. One end of the special-shaped screw is movably arranged in the guiding sleeve, and the other end of the special-shaped screw penetrates through the guiding end cover and is sequentially connected with the locked plate D, the locked plate C, the locked plate B and the locked plate A through the compaction nuts. According to the controllable step-by-step unlocking device, multiple times of unlocking operation is achieved through one stepper motor, and the controllable step-by-step unlocking device has the advantages of being lightweight, easy to control, high in reliability and the like, and is an unlocking device having high application value for multiple times of ordered unlocking occasions on the spacecraft.
Description
technical field [0001] The invention relates to a spacecraft structure, in particular to a controllable step-by-step unlocking device applied to a spacecraft. Background technique [0002] The unlocking device on the spacecraft is used more and more widely, and according to the different application occasions, more requirements are put forward for the unlocking device. The traditional unlocking on the star generally uses pyrotechnic unlocking devices, memory alloy unlocking devices, and hot knife cutting. Among them, the pyrotechnic unlocking device consumes a lot of energy and has a large impact response, and it is a one-time unlocking; the memory alloy needs to be heated on the rail, causing the phase change of the functional material to achieve unlocking, but it is difficult to control the unlocking sequence; the unlocking method of cutting the rope with a hot knife also faces challenges. above question. Therefore, on the one hand, traditional on-board unlocking devices...
Claims
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IPC IPC(8): B64G1/64
CPCB64G1/645
Inventor 赵枝凯王智磊杜三虎聂斌斌袁野
Owner SHANGHAI SATELLITE ENG INST