Azimuth-drive motor system structure of heavy load inertially stabilized platform

Abstract

An azimuth-drive motor system structure of a heavy load inertially stabilized platform comprises an azimuth-drive motor body structure, a motor measuring structure and a motor locking mechanism. The azimuth-drive motor body structure comprises a motor stator and a motor rotor. The motor measuring structure comprises a grating measuring ruler structure and a grating read head structure. The motor locking mechanism comprises a motor locking spring and a motor locking pin. The azimuth-drive motor body structure realizes control of azimuth direction freedom degree, and realizes isolation of airplane azimuth direction angle motions according to control instructions. The motor measuring structure finishes angle information measurement of azimuth direction relative rotary angles, and feeds back to a processor to complete accurate control of azimuth direction. The motor locking mechanism realizes static state of the heavy load inertially stabilized platform, and guarantees fixed azimuth pose during aerial photography and absolute static during non-working state.

Description

technical field [0001] The invention belongs to the technical field of aerial remote sensing, and is suitable for an aerial remote sensing large-load three-axis inertial stabilization platform system with a large load and a small self-weight, and relates to an azimuth motor installed inside a large-load inertial stabilization platform, which can provide azimuth direction It can also be used in other mechanical mechanisms that require large-diameter, small-volume, light-weight, and high-precision motors. Background technique [0002] The aerial remote sensing large-load 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 ...

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Problems solved by technology

[0003] In the existing aviation inertial stabilization platform design, however, there are many deficiencies in the existing inertial stabilization platform, which are generally manifested as systematic deficiencies in the aspects of large volume, small load / weight ratio, poor precision, etc., that is, it is difficult to find the A product with advantages

Among them, the drive and transmission in the azimuth direction are particularly critical. The current azimuth is mostly operated indirectly by one-stage gear transmission, which increases the mass of the large-load inertial stable platform and makes it impossible to achieve direct drive fine-tuning of the attitude, making it difficult to further improve its accuracy.

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