Rotary locking joint

Abstract

The invention discloses a rotational locking joint, which comprises a fixed hinge joint (1), a movable hinge joint (2) and a connection release mechanism. The inner sides of the fixed hinge joint (1) is connected with the inner side of the movable hinge joint (2) through a fixed connecting axle (6), and the outer sides are connected through the connection release mechanism; a chip-type actuator spring (5) is connected with the outer side of the fixed hinge joint (1) through a lower connecting axle (7), and the other end of the chip-type actuator spring (5) is connected with the outer side of the movable hinge joint (2) through an upper connecting axle (8); when the rotational locking joint is locked, the chip-type actuator spring (5) is in a bent strained condition, and after being unfolded to a destination operating condition, the chip-type actuator spring (5) is in a stretching condition. When the rotational locking joint is locked and unfolded, the strained condition of the chip-type actuator spring (5) is reasonably utilized, compared with the prior product, the connection links during the executive process are reduced, the structural weight is reduced, the system reliability is enhanced, and simultaneously the component has large bearing capacity.

Description

technical field [0001] The invention relates to a mechanical executive joint, in particular to a rotation locking joint with reliable rotation and locking functions in a spacecraft mechanism system. Background technique [0002] The spacecraft mechanism system often undertakes the function of switching important components on the spacecraft under different working conditions. This function generally includes locking the initial position of the entire system, switching working conditions, and locking the target working condition. This series of actions is It is accomplished through the execution unit in the mechanism system, which must provide the required driving force and constraint force for the above actions. [0003] Rotation and locking are the two most important actions in a general mechanism system, and they are also the two most critical actions. The execution units that complete these two actions are often independent of each other. Rotation generally refers to the...

AI Technical Summary

Problems solved by technology

[0005] Taking the common satellite solar wing as an example, its complete rotation locking mechanism system is mainly composed of compression release mechanism, expansion locking mechanism and linkage mechanism. The whole system contains dozens of parts, the system is complicated and heavy, and each The components are connected in series, and the success or failure of one action will determine the success or failure of the entire mechanism system, so the reliability of the mechanism system is low

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