Bidirectionally swinging mechanism for airspace engine

Abstract

The invention provides a bidirectionally swinging mechanism for an airspace engine. The A shaft and C shaft of a cross are respectively fixedly provided with a fixed support I and a fixed support II in fixed connection with a pedestal supporting frame; the B shaft and D shaft of the cross are respectively fixedly provided with a support rotation block I and a support rotation block II in fixed connection with solenoid valves of the engine; a motor I is fixedly connected with the fixed support II, and the power output terminal of the motor I is fixedly connected with a square load-bearing shaftI arranged on the outer end of the C shaft; and a motor II is fixedly connected with the support rotation block II, and the power output terminal of the motor II is fixedly connected with a square load-bearing shaft II arranged on the outer end of the D shaft. The bidirectionally swinging mechanism provided by the invention can realize swinging in two directions perpendicular to each other; through usage of internal pipelines on the cross, construction of the swinging mechanism and arrangement of engine pipelines are simplified; and the bidirectionally swinging mechanism can meet the requirement of the airspace engine for swinging movement in perpendicular directions under specific working conditions.

Description

technical field [0001] The invention relates to the technical field of aerospace engines, in particular to a two-way rocking mechanism for aerospace engines. Background technique [0002] With the continuous development of aerospace industry, aerospace engine is an indispensable product in aerospace industry, and its design and development are subject to strict requirements. Under normal circumstances, the aerospace engine is fixed on the support plate, and its thrust direction is also unchanged. However, due to the control requirements of the spacecraft attitude and orbital state, it will become a key point in the research field of the aerospace industry to change the thrust direction of the engine. focus. The current technical difficulties in the field of thrust direction change of aerospace engines are as follows: 1. The mechanism for realizing thrust change direction is complicated; Large, it is easy to bring greater vibration; Fourth, the generation of torque increase...

AI Technical Summary

Problems solved by technology

[0004] 1. A realization method of a left-right swing mechanism. The mechanism rotates under the drive of the rotating shaft, thereby driving the engine solenoid valve connected to it on the shaft to swing left and right, thereby realizing the change in the thrust direction of the engine; but this realization mechanism adopts an external The form of pipeline layout increases the complexity of pipeline layout. In addition, the mechanism can only realize the swing in one direction, which is not completely sufficient to meet the control requirements of spacecraft attitude and orbital state

[0005] 2. A numerically controlled universal swing mechanism, which swings in a transmission mode similar to hinged chains, thereby driving the engine solenoid valve connected to it to swing in all directions, thereby realizing changes in the engine thrust direction; but This kind of realization mechanism adopts the form of multiple hinge structures, which increases the complexity of the realization mechanism, and increases the difficulty of control in the swing direction and the complexity of pipeline layout.

[0006] There are still many limitations in the realization of aero-engine swing at this stage

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