Internal control rotor wing supporting piece structure

Abstract

The invention belongs to the field of rotor supporting piece structure design, and discloses an internal control rotor supporting piece structure. A hollow cylindrical section, a conical section, a reinforcing rib section and a circular ring section are sequentially divided from top to bottom; the hollow cylindrical section is connected with an inner rotor shaft; the circular ring section is connected with a guide cylinder; the circular ring section is further connected with a torque arm assembly; and the reinforcing rib section is connected with a rocker assembly. A plurality of first bolt holes are formed in the lower end of the hollow cylindrical section in the radial direction, and a shoulder lining is arranged in each first bolt hole; the hollow cylindrical section is connected with the inner rotor shaft through a bolt; the thickness of a bolt hole area of the hollow cylindrical section is largest, the thickness of an annular area close to the upper end face of the hollow cylindrical section is second, and the thickness of other parts of the hollow cylindrical section is smallest. The supporting piece structure is of a multifunctional structure, and the functions of quick and simple connection with the rotor shaft, the connection with the rocker assembly, the connection with the guide cylinder and the connection with the torque arm assembly are achieved.

Description

Technical field [0001] The present invention belongs to the field of rotor support structural design, which discloses an inner manipulating rotor support structure. Background technique [0002] The common-shaft double-rotor helicopter has the characteristics of fast flight, high housing efficiency, good motor, low noise, etc. . The common shaft helicopter has two rotors, two sets of automatic inclinters, two sets of rotings. The upper rotor automatic tilt unit of the coaxial helicopter is an internal manipulation structure. The entire manipulation system is located inside the helicopter rotor shaft, eliminating the interference of the external manipulation pulling rod to pneumatic interference compared to the routine external manipulation helicopter, and can effectively reduce the waste resistance of the rotor system in flight, improve the helicopter Performance, therefore in the inner manipulation system is widely used on different models of co-shaft helicopters. [0003] The s...

AI Technical Summary

Problems solved by technology

The support of the conventional rotor is splined to the rotor shaft and has a single function. To adopt the spline connection, the spline must first be designed on the support and the rotor shaft, and the spline connection requires a cone ring, a main shaft screw, a bearing Plates, locking screws and other structures, many connection structures

Moreover, the spline design, processing and assembly are difficult

Therefore, the conventional support has a single function and cannot realize multiple connection functions

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