Piezoelectric ceramic-driven spatial payload unlocking and separating mechanism

Abstract

The invention provides a piezoelectric ceramic-driven spatial payload unlocking and separating mechanism, belongs to the field of aerospace, and aims to overcome defects of an unlocking and separating mechanism based on initiating explosive devices. The mechanism comprises an upper support, a lower support, a left belting, nuts, gaskets, release springs, piezoelectric ceramics, fracture bolts and a right belting, wherein each of the upper support and the lower support is provided with a V-shaped groove; the left belting and the right belting are provided with V-shaped tables corresponding to the V-shaped grooves; the left belting and the right belting are in contact fit with the upper support and the lower support, and are clamped tightly through the fracture bolts; the fracture bolts are sleeved with the piezoelectric ceramics, and the fracture bolts and the piezoelectric ceramics are locked through the nuts and the gaskets; the precompression release springs are respectively arranged between the left belting and the right belting. The piezoelectric ceramic-driven spatial payload unlocking and separating mechanism is high in reliability, has larger bearing capacity and favorable application prospect, and is suitable for deployment of payload, and auxiliary connection of large-scale spatial loads.

Description

technical field [0001] The invention relates to a space payload unlocking and separation mechanism driven by piezoelectric ceramics, which belongs to the aerospace field and is applied to the connection and unlocking of a space payload and a satellite platform. Background technique [0002] Unlocking and separating mechanisms are widely used in the aerospace field. During the launch phase of satellites, in order to resist the vibration and shock during the launch process, a mechanism with locking function is required to realize the reliable connection between the payload and the satellite platform; at the same time, after the satellite enters orbit, according to the instruction Requirements, the locking mechanism can achieve reliable unlocking and separation. [0003] The unlocking and separation mechanism based on pyrotechnics has high separation reliability, good real-time performance, and large carrying capacity, so it has been widely used in the aerospace field, includin...

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Problems solved by technology

[0003] The unlocking and separation mechanism based on pyrotechnics has high separation reliability, good real-time performance, and large carrying capacity, so it has been widely used in the aerospace field, including the separation of rockets, deployment of solar panels, opening of hoods, deployment of payloads, etc. The separation mechanism is still based on pyrotechnics, but there are problems such as high development and production costs, large impact response, and inability to be reused.

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