Cardan universal joint type flap transmission mechanism

Abstract

The invention discloses a cardan universal joint type flap transmission mechanism. The cardan universal joint type flap transmission mechanism comprises a rotary block, connecting rods, swing arms, transmission rotary shafts, cardan universal joint assemblies and rolling bearings. The two ends of the rotary block are hinged to the connecting rods respectively. The connecting rods are hinged to one ends of the swing arms. The other ends of the swing arms are connected with the transmission rotary shafts. The rolling bearings are installed at the two ends of the transmission rotary shafts in an interference fit mode. The transmission rotary shafts are split into two sections for connection according to requirements through the cardan universal joint assemblies. The mechanism can effectively solve the problem that transmission accuracy is affected by small wing space, the long transmission path and wing bending deformation, can be widely applied to occasions with limited installation space and long-distance transmission, and is driven by a single power source, motion synchronism of a left flap and a right flap is good, the deflection symmetry of the flaps in the forward direction and the reverse direction is good, and response is reliable. Through refitting, the mechanism can be universal in design according to different types and different airload conditions.

Description

technical field [0001] The invention relates to an aileron transmission mechanism, in particular to a cross universal joint type aileron transmission mechanism. Background technique [0002] With the advancement of science and technology, more and more target drones use large aspect ratio wings to increase the endurance time and range, and improve the performance of the target drone. For wings with large aspect ratios, the requirements for the control torque of the body roll are getting higher and higher. The traditional ailerons arranged at the root of the wing can no longer meet the requirements. In order to meet the necessary control torque for the body roll, while maximally To reduce the working load of the steering gear, the ailerons of the target drone need to be arranged at the end of the wings. Although this overall layout reduces the difficulty of controlling the body, it leads to a long transmission path of the ailerons and a decrease in transmission accuracy. At ...

AI Technical Summary

Problems solved by technology

For wings with large aspect ratios, the requirements for the control torque of the body roll are getting higher and higher. The traditional ailerons arranged at the root of the wing can no longer meet the requirements. In order to meet the necessary control torque of the body roll, while maximizing To reduce the working load of the steering gear, the ailerons of the target drone need to be arranged at the end of the wings. Although this overall layout reduces the difficulty of controlling the body, it leads to a long transmission path of the ailerons and a decrease in transmission accuracy.

At present, the ailerons of aircraft are widely used in the form of electric transmission, hydraulic control circuit or multiple sets of linkage mechanisms in series and parallel. However, the wings of target aircraft are generally thin, so the application of the transmission form of aircraft ailerons on the ailerons of target aircraft has certain advantages. limitation

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