A Six Degrees of Freedom Parallel Stable Seat

Abstract

A six-degree-of-freedom parallel stable seat mainly includes a seat, an armrest, a base, six driving branches connecting the seat and the base, and four spring bearing branches. Among the six drive branches, four SPSP drive branches with the same structure are arranged on both sides of the seat, and two SPS drive branches with the same structure are arranged under the seat; the four drive branches arranged on both sides of the seat, One end is connected to the outside of the armrest through a ball hinge, and the other end is vertically installed on the base; the two drive branches arranged under the seat are connected at one end to the bottom of the seat through a ball hinge, and the other end is connected to the bottom of the seat through a ball hinge. It is connected with the rear side of the base; the four spring-loaded branches are SPS branches with the same structure, and the two ends of them are respectively connected with the bottom and the base of the seat through spherical hinges. The invention has a simple and compact structure, effectively reduces the height of the seat from the ground, and the existence of the spring bearing branch greatly improves the load-bearing capacity of the seat, and has a good stable vibration isolation effect.

Description

technical field [0001] The invention relates to a stable seat, in particular to a six-degree-of-freedom parallel stable seat. Background technique [0002] When a ship is sailing at sea, due to the influence of sea waves and sea wind, it will produce six degrees of freedom motions of rolling, pitching, yaw, sway, surge and heave. Activity. At the same time, with the advancement of science and technology, the society is constantly developing, and people's requirements for the quality of life are also gradually improving. When traveling on a cruise ship, these movements can also cause dizziness or discomfort to the occupants. In view of the above problems, it is necessary to propose a stable seat that can isolate the motion of the hull. At present, a multi-degree-of-freedom seat is used as a vehicle driving simulator for simulation training of various vehicles including armored vehicles, but its size is too large, and the simulation effect is not ideal, so it is not suitabl...

AI Technical Summary

Problems solved by technology

At present, a multi-degree-of-freedom seat is used as a vehicle driving simulator for simulation training of various vehicles including armored vehicles, but its size is too large, and the simulation effect is not ideal, so it is not suitable for isolating the movement of the hull

[0003] Patent CN201420108962.4 proposes an electric sports seat, including a seat surface, a base, three support rods connecting the seat surface and the base, and three electric cylinders, which can realize three-dimensional movement of the seat, but cannot completely eliminate the above-mentioned Effects of six degrees of freedom motion on activities performed on board a ship

Patent CN201110257824.3 proposes a vehicle driving simulator with heavy-duty broadband response. The simulation cabin is installed on the moving platform of the six-degree-of-freedom hydraulically driven motion platform, but the six-degree-of-freedom hydraulically driven motion platform is based on the classic Stewart structure, the six branches are identical and evenly distributed, the upper platform is higher than the lower platform, takes up a lot of space, and there is no damping and vibration isolation device

Images