Inner-ring upright four-axis stable platform

Abstract

The invention relates to an inner-ring upright four-axis stable platform, comprising an outer orientation swing mechanism, an outer luffing swing mechanism, an inner orientation swing mechanism and an inner luffing swing mechanism, wherein the upper end of the outer orientation shaft is provided with an outer orientation servo motor with pinions which are engaged with rack wheels fixed on the outer orientation shell; the outer luffing swing mechanism comprises an outer luffing seat, wherein a left luffing supporting arm is fixed on the left of the outer luffing seat and a right luffing supporting arm is fixed on the right of the outer luffing seat; a luffing ball shell is rotatably connected with the left luffing supporting arm and the right luffing supporting arm; and the inner orientation swing mechanism and the inner luffing swing mechanism comprise an inner luffing supporting arm, wherein the lower part of the inner luffing supporting arm is provided with an inner orientation motor, the upper part of the inner luffing supporting arm is provided with an inner orientation angle measurement element, and the left side and the right side of the middle part of the inner luffing supporting arm are respectively provided with an inner luffing angle measurement element and an inner luffing torque motor. The invention has the advantages of high-precision four-axis stability, compact structure, big payload, easy installation and maintenance, and the like.

Description

technical field [0001] The invention relates to an inner-ring upright four-axis stable platform, in particular a compact inner-ring upright four-axis stable platform for carrying payloads such as photoelectric sensors and realizing four-axis stabilization, and belongs to the technical field of photoelectric equipment. Background technique [0002] Payloads such as photoelectric sensors need to be stabilized with high precision during work so that they can track or lock high-speed moving targets, especially photoelectric sensors on moving platforms such as aircraft or ships need to eliminate the interference of the moving platform itself from swing, vibration and wind resistance. Influence, higher requirements on volume and stability precision. In order to meet the high-precision stability requirements, a four-axis stable platform is generally used. At present, the outer frame group of the four-axis stabilized platform mostly adopts the gear transmission mode of the fixed-ax...

AI Technical Summary

Problems solved by technology

At present, the outer frame group of the four-axis stabilized platform mostly adopts the gear transmission mode of the fixed-axis gear train, while the inner frame group generally adopts a ring-shaped mounting bracket. These structures have problems such as compactness, rigidity and stability accuracy.

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