Compact precise driving shaft system with limiting function

Abstract

A compact precision driving shafting with a limiting function comprises a motor base, a motor stator, a motor rotor, a bearing base, an angular contact bearing pair, a rotating shaft and a steel ball,wherein the motor stator and the rotating shaft are fixed to the motor base through screws respectively, an inner ring of the angular contact bearing pair is fixed to the rotating shaft to jointly form a static part of the precision driving shafting; the outer ring of the angular contact bearing, the bearing base and the motor rotor jointly form a rotating part of the precision driving shaft system; and the steel ball moves on the groove of the bearing base along the radial direction and moves on the motor seat along the spiral line at the same time to play a role in angle limiting. The precision driving shaft system has the advantages of being high in precision, large in driving force, compact in structure, light in weight, high in strength and rigidity, resistant to impact vibration andthe like, can meet related requirements of missile-borne equipment, can be produced in a modular mode, and is beneficial to shortening the equipment development period and reducing the development cost.

Description

technical field [0001] The invention relates to a precision drive shaft system, in particular to a compact precision drive shaft system with a limit, which is applied to a bomb-loaded three-automatic inertial group dual-axis indexing mechanism. Background technique [0002] As an important part in the development process of the three-automatic inertial group dual-axis indexing mechanism, the drive shaft system is used to drive the rotary motion of the inner frame and the load frame, and to limit the range of motion of the inner frame and load frame. The accuracy of the drive shaft system It directly affects the various motion precision indexes of the whole equipment, and plays a key role in the development process of the three-auto inertial group dual-axis indexing mechanism. [0003] The bomb-loaded use environment imposes strict requirements on the size and weight of the three-auto inertial group dual-axis indexing mechanism. The drive shaft of the existing product uses cr...

AI Technical Summary

Problems solved by technology

[0003] The bomb-loaded operating environment imposes strict requirements on the size and weight of the three-auto inertial group dual-axis indexing mechanism. The drive shaft of the existing product uses crossed roller bearings, which is large in size, heavy in weight, and complex in structure. Therefore, it is necessary to modify the existing drive shaft Improve the material and structure of the system to meet the above requirements

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