A kind of anti-shock seat device of ship

Abstract

The invention discloses a novel ship anti-shock seat device, which comprises a seat upper board, a seat middle board and a seat lower board arranged in sequence from top to bottom; the seat upper board, seat middle board and seat The lower plate of the seat is respectively provided with the first slide bar, the second slide bar and the third slide bar which can slide along the horizontal direction of the seat, and the first slide bar and the second slide bar are arranged parallel to each other along the vertical direction. A plurality of first pulleys, the first slide bar and the second slide bar can slide synchronously along the horizontal direction; a magnetorheological damper mechanism is arranged between the seat upper plate and the seat middle plate, and the output of the magnetorheological damper mechanism The shaft connection is provided with wire ropes that go around multiple first pulleys in turn; an X-shaped bracket is arranged between the seat middle board and the seat lower board, and the X-shaped bracket can drive the second sliding rod and the third sliding rod to slide horizontally ; The impact-resistant seat of the technical solution has an inherent fault protection mode, and has a simple and compact structure and low cost.

Description

technical field [0001] The invention relates to the field of mechanical vibration reduction, in particular to a novel ship anti-shock seat device. Background technique [0002] When a surface ship is subjected to underwater non-contact explosion or accidental collision of underwater weapons, the entire ship will undergo violent impact movements, especially the vertical upward impact is the most violent, which can cause varying degrees of damage to personnel. [0003] At present, most safety seat designs use fixed load energy absorbers to limit the occupant's spinal load within the tolerable range, such as: inverted tube energy absorbers, bent wire energy absorbers, fragile composite columns, etc., passive The control system has a simple structure and relatively reliable performance. However, because its damping is fixed and cannot be reused, for lighter or heavier occupants, the fixed stroke load may even lead to an increased risk of injury. Hydraulic buffer can absorb huge...

AI Technical Summary

Problems solved by technology

The structure of the buffer is simple, but the buffer performance is poor, the damping itself is small, and the buffer stroke is also limited. In addition, after the spring is compressed to the limit position, the elastic potential energy will be released, causing the buffer to rebound when it ends.

The vertical expansion ring buffer rod is an interference fit composed of a metal cone rod and a metal collar to absorb impact energy. Compared with the honeycomb energy-absorbing element, this energy-absorbing element has more stable process performance and testable performance. , but cannot be reused, and the damping cannot be adjusted

The impact energy absorbed by the cylinder buffer is small, and the piston and the end cover are prone to violent impact at high speed and heavy load. The optimum buffer point is suitable for a small range of working conditions. Corresponding to different impact loads, the opening of the buffer valve is unique and cannot be adjusted.

The active control system relies on external energy to provide force to the seat, which eliminates the defects of fixed damping in passive systems, but it is not only costly, but also has poor failure safety

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