An engine throttle control device

Abstract

The invention discloses an engine throttle operation device and belongs to the technical field of airplane power systems. The engine throttle operation device comprises a throttle steering engine, a main steel wire rope, branch steel wire rope components, a synchronizer, an adjustment support, anti-wear bush adjusting screws, locking supports, sector discs, rough adjusting press blocks and returnsprings. The synchronizer is installed on the adjustment support, and the anti-wear bush adjusting screws are installed on the locking supports. The throttle steering engine is connected with one endof the synchronizer through the main steel wire rope, the other end of the synchronizer is connected with the multiple branch steel wire rope components, the multiple branch steel wire rope componentsare connected to the anti-wear bush adjusting screws, penetrate through the anti-wear bush adjusting screws and are installed on the sector discs of throttle valves through the rough adjusting pressblocks. The sector discs are provided with the return springs, one end of each return spring is connected with the corresponding sector disc, the other ends of the return springs are connected with anengine, and the return springs are used for resetting the throttle valves. The throttle steering engine is rotated, and through adjustment of the installation positions of the synchronizer and the anti-wear bush adjusting screws and adjustment of tightness of the rough adjusting press blocks, the multiple throttle valves can be synchronously operated.

Description

technical field [0001] The invention belongs to the technical field of aircraft power system design, and in particular relates to an engine throttle control device. Background technique [0002] The flight control system of the unmanned helicopter realizes the control of the throttle channel through the throttle control mechanism, thereby changing the opening of the engine throttle valve, adjusting the output power of the engine, stabilizing the rotor speed of the unmanned helicopter, and realizing the maneuvering flight of the unmanned helicopter. [0003] The throttle control mechanism of existing unmanned helicopter generally adopts link type or direct connection type. The connecting rod type connects the throttle steering gear and the engine throttle valve through a space linkage mechanism to realize the manipulation and control of the throttle. The direct connection type is to directly connect the output shaft of the electric steering gear with the shaft of the engine ...

AI Technical Summary

Problems solved by technology

If the connecting rod mechanism is used, the engine and the throttle steering gear are not in the same vibration condition, which will easily cause the tremor of the throttle valve, resulting in unstable throttle control, causing fluctuations in speed, and the control linearity of the connecting rod is poor.

If the direct connection type is used, the throttle servo is in a high-frequency vibration environment, which will affect the life and reliability of the throttle servo;

[0005] 2) When an engine with multiple cylinders and multiple throttle valves is used, it is difficult for a single throttle steering gear to realize simultaneous manipulation of multiple throttle valves for a connecting rod or direct connection mechanism;

[0006] 3) The link type and direct connection mechanism have strict requirements on the installation space, especially on small unmanned helicopters. The design of the mechanism is complicated, the synchronization adjustment is difficult, and the weight cost is high.

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