A dual-group synchronous separation device for a spacecraft hydraulic circuit breaker

Abstract

The invention discloses a spacecraft fluid path breakout connector dual-set synchronous separation device and belongs to the technical field of spacecrafts. The spacecraft fluid path breakout connector dual-set synchronous separation device comprises two sets of separation power components, a fixed base, a separation bracket, an outer guiding barrel, an inner guiding barrel, a separation nut and a connecting screw rod; the separation power components are used for providing power for separating the bracket from the fixed base; an installation plate of the separation bracket is tightly pressed on the fixed base; the inner guiding barrel is fixed into a rectangular frame body of the separation bracket, and the outer guiding barrel is installed on the outer circumferential face of the inner guiding barrel in a sleeving mode; the separation nut is installed in the inner guiding barrel, one end of the separation nut is fixed to the top of the rectangular frame body of the separation bracket, and the other end of the separation nut is connected with the connecting screw rod; and the two separation power components are symmetrically installed on the two sides of the separation nut, and the two ends of each separation power component are fixedly connected with the separation bracket and the fixed base correspondingly. The spacecraft fluid path breakout connector dual-set synchronous separation device can autonomously achieve whole translation pull-disengagement separation of cabin liquid path detachable connectors in advance before cabin section separation of a spacecraft.

Description

technical field [0001] The invention belongs to the technical field of spacecraft, and in particular relates to a dual-group synchronous separation device for a spacecraft liquid circuit breaker. Background technique [0002] A spacecraft is usually composed of multiple interconnected cabins. For a spacecraft equipped with a fluid circuit thermal control system, it is often necessary to set up a fluid circuit breaker on the docking surface of the cabin to form a cross-cabin layout of the fluid circuit. Realize the connection and disconnection of the thermal control working medium in the cabin. Normally, the compartment fluid circuit breaker is connected with the mechanical docking between the compartments, and disconnected with the mechanical separation between the compartments. However, the hydraulic circuit breaker itself has a large plug-in load and guide stroke, and multiple groups of hydraulic circuit breakers must show separation asynchrony, which will affect the sepa...

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Problems solved by technology

[0004] Before the separation of the propulsion module and the return module of my country's Shenzhou series manned spacecraft, more than ten sets of inter-cabin liquid circuit / air circuit / circuit disconnectors are automatically pulled out and separated in advance through the swing separation device, see Volume 13, No. 4, 2004 In the issue of "Spacecraft Engineering", Lou Hanwen et al. published the article "Scheme for Connection and Separation between Cabin Sections of Shenzhou Spacecraft"; this device is based on the swing mechanism of pyrotechnic lock connection release and spring separation. Restrict the installation direction of the disconnector to be perpendicular to the bulkhead, which is not conducive to the routing layout of the supporting pipelines and cables of the disconnector. On the other hand, the device can only be installed outside the bulkhead, which not only occupies the carrying envelope space , and need to implement thermal control protection, bringing additional resource requirements and costs

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