A three-dimensional test turntable with adjustable rigidity and its rigid debugging method

Abstract

The invention relates to a three-dimensional test turntable with adjustable rigidity and a rigid debugging method thereof. The problems of serious gear wear, large installation and testing workload, high equipment cost, large wear, heavy weight, poor versatility and high cost in the prior method are solved. The azimuth axis, pitch axis and roll axis are driven by the combination of the torque drive assembly and the position drive assembly. For loads of different weights, the torque drive assembly is used to pre-apply the corresponding drive gear with a constant forward rotation torque that meets the rigidity requirements. Ensure that the load torque is not enough to overcome the constant forward rotation torque, and at the same time, according to the action command of the turntable, use the position drive component to drive the corresponding drive gear to rotate to achieve azimuth, pitch and roll adjustment; in addition, during the rotation process, the drive gear meshes always Rotate close to one side for backlash-free transmission. It is suitable for testing and calibration of high-precision inertial navigation devices, optical modules, sight stabilization systems and servo mechanisms.

Description

technical field [0001] The invention relates to a three-dimensional test turntable, in particular to a three-dimensional test turntable with adjustable rigidity and a rigid adjustment method thereof. Background technique [0002] For the test turntable, it is required to have high transmission accuracy within a certain bearing range. For example, the bearing capacity and transmission accuracy of a two-dimensional turntable for testing inertial navigation with respect to the moving part are as follows: [0003] 1) Bearing capacity: ≤100Kg; [0004] 2) Azimuth rotation accuracy: ≤ 2′ (spindle); pitch angle rotation accuracy ≤ 3′; [0005] Factors that have a greater impact on transmission accuracy include transmission clearance. Although the use of synchronous belt drive system can achieve no gap transmission, but the rigidity is poor, it is difficult to meet the use requirements when the load mass is large. Therefore, gear transmission systems are generally used for higher...

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a three-dimensional test turntable capable of realizing backlash-free transmission and adjustable rotational rigidity and its rotational rigidity adjustment method, in order to solve the serious gear wear and the use The manual adjustment method has problems such as heavy installation and testing workload, high cost, heavy wear, heavy use, poor versatility, and high cost of use of such high-rigidity turntable equipment.

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