Two-degrees-of-freedom spherical motion platform

Abstract

The invention discloses a two-degrees-of-freedom spherical motion platform. A pitching driving gear is mounted in a base; a rotation supporting body comprises an annular outer ring and an annular inner ring; the annular outer ring is fixedly mounted on the base; the outer wall of the annular inner ring is provided with external teeth which are meshed with the pitching driving gear; a pitching driving motor is capable of driving the annular inner ring to rotate around the own axis for 360 degrees by the pitching driving gear; the annular inner ring is fixedly provided with two rolling and connecting assemblies; rod parts of two ends of a spherical cabin are respectively mounted in the corresponding rolling and connecting assemblies by bearings; the rod part at one end of the spherical cabin is sleeved with a rolling driven wheel; a rolling driving wheel is arranged around the rolling driven wheel; the rolling driven wheel, the rolling driving wheel and the spherical cabin form a planet wheel transmission mechanism, a rolling driving motor drives the rolling driving wheel to rotate, and the rolling driven wheel drives the spherical cabin to rotate around the own axis for 360 degrees. According to the invention, the coupling is eliminated, the cost is reduced, the energy consumption and fault rate are reduced, and the maintenance interval time is prolonged.

Description

technical field [0001] The invention is suitable for various spherical simulation equipment, and belongs to the technical field of mechanical structures. Background technique [0002] Traditional spherical motion simulation platform, such as figure 1 As shown, it consists of six push cylinders and two upper and lower platforms. The upper and lower parts of each push cylinder are equipped with a universal hinge, which is used to articulate with the upper and lower platforms. The lower platform is fixed on the foundation. degrees of freedom (X, Y, Z, α, β, γ), so that various spatial motion postures can be simulated. If a space simulation capsule is installed on the spherical motion simulation platform, it can be used to simulate a space capsule for customer experience. [0003] Due to structural and control reasons, the push cylinder is used for coupling motion simulation. Due to the limited stroke of the push cylinder, there is a large motion coupling when the rotation mo...

AI Technical Summary

Problems solved by technology

[0003] Due to structural and control reasons, the push cylinder is used for coupling motion simulation. Due to the limited stroke of the push cylinder, there is a large motion coupling when the rotation motion is superimposed by the push cylinder motion, and decoupling control is required to simulate the rotation motion. Therefore, the spherical motion The simulation platform has a limited rotation range, cannot achieve 360° rotation, and has high energy consumption, severe wear of the mechanical structure, short maintenance intervals, and high failure rate

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