Cycloidal gear speed reducer and cycloidal gear transmission mechanism

Abstract

The invention discloses a cycloidal gear speed reducer. A transmission mechanism of the cycloidal gear speed reducer comprises a cycloidal wheel and a cycloidal gear ring, wherein the cycloidal wheeland the cycloidal gear ring are conjugated, and both the tooth profile of the cycloidal wheel and the tooth profile of the cycloidal gear ring are epicycloidal equidistant curves, thus, when the cycloidal wheel is engaged with the cycloidal gear ring, frictional slide does not exist theoretically to enable the stress of the transmission mechanism to be more dispersive and uniform, the transmissionmechanism has stable transmission and lower friction and heating power, the transmission performance of the transmission mechanism is improved, and the service life of the transmission mechanism is prolonged. Moreover, because both the tooth profile of the cycloidal wheel and the tooth profile of the cycloidal gear ring are the epicycloidal equidistant curves, the cycloidal wheel and the cycloidal gear ring can be processed by utilizing the prior generation method and have simple process, high processing speed and high processing precision.

Description

technical field [0001] The invention relates to reducer technology, in particular to a cycloidal gear reducer and a cycloidal gear transmission mechanism. Background technique [0002] The transmission mechanism in the existing cycloidal pin gear reducer usually adopts an internal meshing planetary transmission mode. see figure 1 , the transmission mechanism includes: input shaft 11, eccentric sleeve 12, pin gear pin 13, pin gear sleeve 14, cycloid wheel 15, output shaft 16, column pin 17, column sleeve 18. [0003] z H Each needle-toothed pin 13 is respectively socketed with a needle-toothed sleeve 14, and is distributed and fixed according to the equiangular circumference of the preset needle wheel pitch circle radius, so that z H The pin gear sleeve 14 constitutes the pin wheel used as the center wheel of the planetary transmission, and the center of the pin wheel is aligned with the axes of the input shaft 11 and the output shaft 16. [0004] The cycloidal wheel 15 i...

AI Technical Summary

Problems solved by technology

[0009] 1. The transmission performance is not high and the service life is short

[0010] When the cycloidal wheel 15 meshes with the pin-toothed pin 14, there is only a short arc of excessive contact, so that the force on the cycloidal wheel 15 and the pin-toothed pin 14 is relatively concentrated and uneven, resulting in unstable transmission, friction and heat generation Larger, and the pin tooth pin 14 is easily damaged, which leads to a lower service life of the transmission machine;

[0011] 2. Low processing efficiency

[0012] The cycloidal wheel 15 needs to be ground by a special machine tool, and the process is complicated;

[0013] 3. High processing precision requirements

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