High-overload-impact-resistant synchronous four-channel folding wing locking and unfolding mechanism and operation method thereof

Abstract

The invention discloses a high-overload-impact-resistant synchronous four-channel folding wing locking and unfolding mechanism and an operation method of the high-overload-impact-resistant synchronousfour-channel folding wing locking and unloading mechanism. The folding wing locking and unfolding mechanism is installed on a rudder and comprises four rudder wings, locking buffering devices and aninitiator thrust cylinder. The four rudder wings are installed on the corresponding locking buffering devices correspondingly and connected with a rudder speed reducer through base output shafts. Theinitiator thrust cylinder is fixed to the center of the rudder, connected with the four rudder wings through locking claws and used for initial folding locking and in-place unfolding of the rudder wings. The high-overload-impact-resistant synchronous four-channel folding wing locking and unfolding mechanism has the features of being simple in structure, good in synchronism, reliable in locking andthe like. The high-overload-impact-resistant synchronous four-channel folding wing locking and unfolding mechanism is suitable for the application field of guided munition folding wings which are large in impact overload, short in unfolding time and high in synchronism requirement.

Description

technical field [0001] The invention belongs to the technical field of guided ammunition folding wings, and in particular relates to a synchronous four-channel folding wing locking and unfolding mechanism and a method thereof which are resistant to high overload impacts. Background technique [0002] The missile wing is an important part of the missile body. In order to make the missile and rocket device miniaturized and facilitate transportation and storage, guided munitions widely adopt the form of folded rudder wings. At present, the folding wing deployment mechanism of domestic guided munitions mostly adopts the four-way independent push of pyrotechnics, that is, the design method of four pyrotechnics being pushed separately, and the mechanism locks and releases. This method has complex structural design and poor synchronization of four-way wing surface deployment. , When the airfoil is deployed in place, the impact is large, and there is a risk that the airfoil is not s...

AI Technical Summary

Problems solved by technology

At present, the folding wing deployment mechanism of domestic guided munitions mostly adopts the four-way independent push of pyrotechnics, that is, the design method of four pyrotechnics being pushed separately, and the mechanism locks and releases. This method has complex structural design and poor synchronization of four-way wing surface deployment. , when the airfoil is deployed in place, the impact is large, and there is a risk that the airfoil is not securely locked when the airfoil is deployed in place, and the airflow on the airfoil is greatly disturbed, resulting in the risk of instability of the flight attitude of the projectile

[0003] At present, the folding wings mostly adopt the locking strategy of not locking initially or installing an independent locking and releasing device. For the former, there is a risk of mis-deployment during launch. The latter has a complicated structure and increased cost due to the additional installation of a locking and releasing device. Under high impact, it is easy to cause structural failure and cannot be deployed, and the reliability of the folding wing deployment mechanism is low

[0004] The original folding wing deployment mechanism generally does not consider vibration reduction and buffering measures. When the high-speed deployment is in place, the impact force is too large, which may cause the lock to fail or the lock after impact deformation is not reliable, affecting the flight state of the projectile.

[0005] The existing four-channel folding wing expansion mechanism basically adopts four independent push modes of four pyrotechnic products or four independent push modes of single pyrotechnic product. It is difficult to ensure the synchronization of rudder wing deployment

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