A main rotor test machine automatic tilter double helix locker

Abstract

The invention discloses a main rotor test machine automatic tilter double screw lock device which comprises an automatic tilter and a column spherically connected with that automatic tilt. The automatic tilter is also connected with a rotating device. When the automatic tilter rotates relative to the column, the rotating device can move with the automatic tilter; when the automatic tilter rotatesrelative to the column, the rotating device can move with the automatic tilter. The first servo motor and the second servo motor in the rotating device can drive the double trunnion square sleeve to move up and down without affecting the automatic tilter to deflect in any swing angle range. When the free tilter needs to be locked at a certain swing angle position, the first worm wheel and the second worm wheel are clamped by driving the first servo motor and the second servo motor, so that the automatic tilter connected with the double trunnion square sleeve is locked, and the locking is firmand reliable. The first worm wheel and the second worm wheel are clamped by driving the first servo motor and the second servo motor.

Description

technical field [0001] The invention relates to the technical field of a helicopter main rotor testing machine, in particular to a double-helix locking device for an automatic tilter of a main rotor testing machine. Background technique [0002] The main rotor system of a helicopter is the core component of the helicopter, and it is very important to carry out the ground life test machine for its component parts. The automatic tilter is a special device for helicopters to change the tilting direction of the rotor and the tilting angle of the blades. Through it, the flight state of the helicopter can be controlled. It is installed on the rotor shaft through a spherical sleeve. The shaft slides up and down. There is a non-rotating ring on the spherical surface of the sleeve, which is called the inner ring. The rolling bearing rotates around the inner ring, and at the same time, it is connected with the paddle through the tie rod and moves together. When the collective pitch ...

AI Technical Summary

Problems solved by technology

Usually, the two-degree-of-freedom reciprocating swing of the automatic tilter is realized by three booster cylinders; after swinging to a certain position, the fixation is usually achieved by locking the booster cylinder with a hydraulic lock, but in the actual use process, it is found that the hydraulic lock Low reliability, especially under heavy loads

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