Fuse three-degree-of-freedom recoil safety mechanism

Abstract

The invention discloses a fuse three-degree-of-freedom recoil safety mechanism. The fuse three-degree-of-freedom recoil safety mechanism comprises an upper inertia cylinder, an upper inertia spring, a body, a secured piece, a middle inertia cylinder, a middle inertia spring, a lower inertia cylinder, a lower inertia spring and a bottom cover, two channels which vertically communicate with each other are arranged in the body, the secured piece is arranged in the channel which is vertical to the axis of the body, the upper inertia cylinder, the upper inertia spring, the middle inertia cylinder, the middle inertia spring, the lower inertia cylinder and the lower inertia spring are sequentially connected in series in the channel parallel to the axis of the body, the two ends of an inertia mechanism are limited by the body and the bottom cover, and the bottom cover is fixedly connected with the body. The fuse three-degree-of-freedom recoil safety mechanism is simple in structure, small in occupied radial space, low in cost, high in applicability, capable of recognizing launching overload of 30 g or even lower and capable of guaranteeing safety when a fuse falls to a hard target and a soft target in any posture.

Description

technical field [0001] The invention relates to the technical field of fuzes, in particular to a three-degree-of-freedom recoil safety mechanism of a fuze. Background technique [0002] With the continuous upgrading of modern weapons and equipment, various low-launch overload weapons such as light direct-pointing weapons (individual rockets, grenades, recoilless guns, etc.), anti-aircraft missiles, rockets, loitering bombs and drones have been obtained. With the rapid development, the launch overload of these weapons and ammunition is very small when launching, usually only a dozen g to hundreds g , and the flight speed is low, no rotation, no rotation environment can be used, the recoil environment has become the main disarming environment for the design of its fuze insurance mechanism. [0003] The traditional recoil safety mechanism mainly includes zigzag groove safety mechanism, double-degree-of-freedom recoil safety mechanism, interlocking clamp type recoil safety mec...

AI Technical Summary

Problems solved by technology

According to the relevant literature, the current domestic zigzag trough recoil safety mechanism and two-degree-of-freedom recoil safety mechanism can effectively identify the launch overload as 100 g Left and right, the interlocking plate type recoil safety mechanism is widely used in the launch overload factor of 500 g ~43000 g Among the various fuzes, although the watch recoil insurance mechanism can identify 2 g The launch overload of the left and right, but its structure is relatively complex, the manufacturability is poor, the cost is high, and the structure size is large, and the fatigue reliability is low

And the reliability of the safety mechanism of the bending groove recoil safety mechanism is not high

Images