Tail stay bar motor gearbox

Abstract

The invention discloses a tail stay bar motor gearbox. The objective of the invention is to provide a gearbox which is safe, reliable, simple in structure, convenient to produce and long in service life. According to the technical scheme, the gearbox comprises a shell provided with an integrally formed inner tooth part, a motor flange installed at one end of the shell and a main speed reducing mechanism arranged in an inner cavity of the shell; an inner tooth base arranged parallel to the inner tooth part is further arranged in the inner cavity of the shell; and the inner tooth base is arranged between the inner tooth part and the motor flange in an abutting mode; a connecting part inserted into the motor flange is arranged on the end face, facing the motor flange, of the inner tooth base; the connecting part serves as a first rotation stopping structure between the inner tooth base and the motor flange; the shell is further provided with a fixing hole; a connecting piece inserted into the motor flange is arranged in the fixing hole in a matched mode; and the connecting piece serves as a second rotation stopping structure between the motor flange and the shell. The gearbox is suitable for the technical field of speed reduction mechanisms.

Description

technical field [0001] The invention relates to the technical field of reduction mechanisms, and more specifically relates to a tail brace motor gearbox. Background technique [0002] The function of planetary gear structures is well known. In its middle position is a sun gear driven by an electric motor, which is connected to the planetary gears via a motor flange. The sun gear is able to transmit its motion to at least three rotating planetary gears to form a gear, and these planetary gears are located on the bearing pins of the planetary gear carrier. When the transmission is shifted in multiple stages, the last planetary gear carrier is fixedly connected with the driven shaft, which ensures the force transmission during driving. Externally, the planetary gears turn in a ring gear that is non-rotatably connected to the housing. Furthermore, the housing is connected with a drive flange on the output side. [0003] At present, the planetary gear reduction mechanism on t...

AI Technical Summary

Problems solved by technology

[0003] At present, the planetary gear reduction mechanism on the market uses the internal tooth seat limit structure, usually uses some methods such as pins, bolts and teeth as the limit structure between the internal tooth seat and the motor flange, and its manufacturing cost is high. And it is not easy to install and disassemble, and the pins or bolts are easy to loosen and fall off during use, so that the device cannot be used normally; There is no measure to reduce friction between them. Under long-term use, the first-stage planetary gear set and the end cover are easy to wear, which reduces the service life of the device

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