Performance test bench for reaction torque device of helicopter

Abstract

The invention discloses a performance test bench for a reaction torque device of a helicopter. The performance test bench comprises a bench body assembly, a rotor wing driving mechanism, a slew driving mechanism, a rotor wing assembly, a test piece power dragging mechanism and a traditional reaction torque device test piece, wherein the bench body assembly comprises a lower bench body and a slew bench body which is installed above the lower bench body through an outer gear type turntable bearing, an output end of the slew driving mechanism is in linkage connection with an outer ring of the outer gear type turntable bearing, the rotor wing driving mechanism comprises a hydraulic motor and a transmission shaft, a power output end of the hydraulic motor is connected with the rotor wing assembly through the transmission shaft which is supported in the bench body assembly through a bearing, the hydraulic motor is fixedly installed on the lower bench body, and the test piece power dragging mechanism comprises a power dragging motor and a reversing reducer which are installed on the slew bench body. Accordingly, the performance test bench can perform comprehensive and systematic simulation test researches to performances of pneumatic tensile forces, power consumption, noise levels and the like of a reaction torque system of the helicopter under a plurality of flight regimes of the helicopter and is used for supporting model development or advanced researches of the helicopter.

Description

technical field [0001] The invention relates to a test platform for testing a helicopter anti-torque device, which belongs to the test platform in the aviation field. Background technique [0002] At present, domestic helicopter models are not yet comprehensive, so it is still necessary to develop some suitable models for military or civilian use. [0003] The anti-torque device type single-rotor helicopter has been widely used because of its simple structure and high operational reliability. However, there is no dedicated test platform for the experimental research on the anti-torque system (such as conventional tail rotor, ducted tail rotor and tail rotor-less anti-torque system) of this type of single-rotor helicopter. Therefore, under various flight states of the helicopter, the aerodynamic pull, power consumption and noise level of the helicopter anti-torque system cannot be quickly and systematically simulated and studied, which greatly affects the development or pre-...

AI Technical Summary

Problems solved by technology

However, there is no special test platform for the test and research of anti-torque systems (such as conventional tail rotor, ducted tail rotor and tail rotor-less anti-torque system) of this type of single-rotor helicopters.

Therefore, under various flight states of the helicopter, the performance of the anti-torque system of the helicopter, such as aerodynamic pull, power consumption, and noise level, cannot be quickly and systematically simulated and studied, which greatly affects the development or pre-research progress of this type of helicopter.

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