Planetary roller rolling wheel trochoid curved surface composite transmission device

Abstract

The invention discloses a planet roller rolling wheel trochoid curved surface composite transmission device which comprises a shell and a composite transmission device body installed in the shell. Thecomposite transmission device body comprises a signal induction and output part, a planet roller screw part and a trochoid rack rotating wheel part. The signal induction and output part is detachablyconnected with one end of the planetary roller screw part, the trochoid rack rotating wheel part is detachably connected with the other end of the planetary roller screw part, and the planetary roller screw part is provided with an anti-backlash assembly. The anti-backlash assembly comprises an anti-backlash screw, an anti-backlash end cover, an anti-backlash plate, a spring, a T-shaped shaft sleeve and an integrated rod shaft sleeve, and the anti-backlash screw is connected with a push rod / trochoid tooth integrated rod to achieve the anti-backlash effect through pressing. Zero-backlash non-full-circle motion, high-precision transmission and position control can be achieved through transmission of a planet roller and a trochoid gear tooth rolling wheel, the overall size is small, the control precision is high, and operation is convenient.

Description

technical field [0001] The invention relates to the technical field of aircraft flight control, in particular to a planetary roller trochoidal curved surface compound transmission device. Background technique [0002] Some high-speed aircraft need to precisely control the rudder surface during flight, so a rudder surface control device with high transmission precision is required to achieve precise control of the rudder surface. Most of the existing rudder surface control systems use linkage mechanisms or traditional mechanical The structure is not compact enough, the weight is heavy, and the transmission accuracy is low. [0003] In the existing transmission device, the planetary roller screw is a device that can realize precise transmission, but there is a backlash problem in the transmission process of the planetary roller screw, and the trochoidal teeth do not have the gap required by ordinary gears. Therefore, the zero-backlash transmission can be realized; therefore, ...

AI Technical Summary

Problems solved by technology

[0002] Some high-speed aircraft need to accurately control the rudder surface during flight, so a rudder surface control device with high transmission precision is required to achieve precise control of the rudder surface. Most of the existing rudder surface control systems use linkage mechanisms or traditional mechanical The structure is not compact enough, the weight is heavy, and the transmission accuracy is low

[0003] In the existing transmission device, the planetary roller screw is a device that can realize precise transmission, but there is a backlash problem in the transmission process of the planetary roller screw, and the trochoidal teeth do not have the gap required by ordinary gears. Therefore, the zero-backlash transmission can be realized; therefore, by combining the planetary roller screw and the trochoidal gear, a new type of planetary roller trochoidal surface compound transmission device with high transmission accuracy can be obtained. Manipulating the rudder surface of the aircraft can achieve higher precision. In the prior art, the combination of planetary roller screw and trochoidal teeth has not been applied to the precise control of the rudder surface of the aircraft.

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