A planetary roller roller trochoidal surface compound transmission device

Abstract

The invention discloses a planetary roller roller trochoidal curved surface composite transmission device, which comprises a casing and a composite transmission device installed in the casing, and the composite transmission device includes a signal induction and output part, a planetary roller screw part and the trochoidal rack runner part, the signal sensing and output part is detachably connected to one end of the planetary roller screw part, the trochoidal rack runner part is connected to the planetary roller screw part The other end of the rod part is detachably connected, and the planetary roller screw part is provided with an anti-backlash assembly, and the anti-backlash assembly includes an anti-backlash screw, an anti-backlash end cover, an anti-backlash plate, a spring, a T-shaped bushing and The one-piece rod sleeve, the anti-backlash screw is connected with the push rod / trochoidal tooth integrated rod to realize the anti-backlash effect through compression; the invention can realize zero-backlash non-full circle movement through the transmission of planetary rollers and trochoidal tooth rollers, High-precision transmission and position control, small overall size, high control precision, and easy operation.

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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