High-precision shaft-in-shaft double-shafting structure for seeker test turntable

Abstract

The invention discloses a high-precision shaft-in-shaft double-shafting structure for a seeker test turntable. The structure comprises an inner ring main shaft. The inner ring main shaft is sleeved with an inner ring upper bearing assembly, an inner ring driving motor assembly and a lower bearing assembly in sequence from top to bottom. The inner ring upper bearing assembly is sleeved with an outer ring main shaft, an inner ring upper bearing end cover is fixed to the upper end of the outer ring main shaft, the outer ring main shaft is sleeved with a turntable bearing and an outer ring drivingmotor assembly, and the turntable bearing and the outer ring driving motor assembly are both fixedly connected with a base. The inner ring driving motor assembly and the lower bearing assembly are fixedly connected with the base through a fixing frame. With the high-precision shaft-in-shaft double-shafting structure for the seeker test turntable, the problems that two frames of an existing seekertest turntable cannot move independently, the precision of the two frames is low, and the isolation degree is low can be solved, and therefore various performance indexes of a high-performance seekercan be tested and assessed.

Description

technical field [0001] The invention relates to a high-precision "shaft sleeve shaft" double-shaft system structure used for a test turntable of a seeker. Background technique [0002] Infrared seeker is the core component of infrared guidance. Its performance directly affects the flight control signal and plays a key role in flight performance. It has attracted the attention of all countries in the world, and a lot of manpower and material resources have been invested in research. The seeker test equipment is an important part of its development process, and the test and assessment of various performance indicators of the seeker must be completed on the test equipment. [0003] In the past, seeker tests were mostly carried out on a single-axis double-frame turntable, that is, two mounting plates were mounted on the single-axis turntable, one mounting plate was equipped with a seeker, and the other mounting plate was equipped with a target simulator. The performance test of...

AI Technical Summary

Problems solved by technology

However, this method can only provide a single movement of the seeker or the target simulator, and cannot move at the same time

Moreover, the two frames interfere with each other seriously, and the isolation is poor.

Therefore, it seriously affects the testing and assessment of various performance indicators of the high-performance seeker

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