Driving device for triaxial inertially stabilized platform

Abstract

The invention discloses a driving device for a triaxial inertially stabilized platform. The device is suitable for driving the swing of a roll frame and an elevation frame of the triaxial inertially stabilized platform. Different from a traditional sector gear transmission or a cog belt transmission, the device adopts a link mechanism to realize the swing of the roll frame and the elevation frame. The driving device is composed of a fixed end hinge pair, a motor-lead screw movable pair and a swing end hinge pair. When the motor bi-directionally rotates to drive the lead screw to axially move forwards and backwards, a swing hinge shaft mounted on a swing frame drives the swing frame to rotate around the center of rotation to swing back and forth. Compared with the traditional sector gear transmission or the cog belt transmission, the structure has the advantages of large transmission ratio, good transmission rigidity, light and small driving unit, simple structure and the like. The device disclosed by the invention is suitable for driving the roll frame and the elevation frame of inertially stabilized and photoelectric servo platforms for aerial remote sensing, target tracking and the like.

Description

technical field [0001] The invention belongs to the technical field of aviation remote sensing, and relates to the driving of the rolling and pitching actions of a three-axis inertial stabilization platform, which is suitable for the aerial remote sensing three-axis inertial stabilization platform system with a large load and a small self-weight, and can also be used for vehicles, ships, etc. Servo tracking and stabilization platform system for carrier, radar and target monitoring. Background technique [0002] The aerial remote sensing three-axis inertial stabilization platform is one of the key equipment for airborne earth observation. Its function is to support the imaging load and isolate the attitude angle movement and external disturbance of the flight carrier in three directions, so that the visual axis of the imaging load can always track in the inertial space. And perpendicular to the local level, improving imaging resolution. However, due to the limitation of the ...

AI Technical Summary

Problems solved by technology

This two-stage deceleration transmission method has the following disadvantages: (1) The two-stage transmission not only increases the transmission gap but also reduces the transmission rigidity, which is not conducive to improving the control accuracy of the platform; (2) The overall size and weight of the components of the entire transmission link are relatively large Large, which is not conducive to the lightweight design of the platform; (3) The gears or toothed belts and pulleys of the end drive chain require high machining accuracy. Due to the special structure and size, it is usually impossible to purchase ready-made products and need to be customized. The processing conditions of parts High requirements, difficult processing, high manufacturing cost

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