Composite type transmission

Abstract

The invention discloses a composite type transmission. The composite type transmission comprises an input pinion shaft, an inner gear ring, an output shaft and at least one path of change wheel located between the input pinion shaft and the inner gear ring and used for variable transmission. Each path of change wheel at least comprises a first change wheel, wherein the first change wheel comprises a first-level variable speed big gear and a second-level variable speed pinion which rotate coaxially in the same direction; the first-level variable speed big gear is engaged with the input pinion shaft; the second-level variable speed pinion is engaged with the inner gear ring; the inner gear ring is fixedly connected with the output shaft; the input pinion shaft and the change wheels are outer gears; the inner gear ring is an inner gear. As the composite type transmission does not need a planet carrier, the structure is simple, the size and weight are made to be reduced obviously, the machining difficulty is reduced and the energy saving effect is remarkable. Meanwhile, compared with a transmission in an all-outer-tooth transmission mode, as the transmission is provided with the inner gear ring, the transmission ratio is further increased.

Description

technical field [0001] The invention relates to the field of transmission equipment, in particular to a brand-new compound transmission. Background technique [0002] In the field of reducer equipment, the volume and weight of the reducer are getting smaller and smaller, and the transmission ratio is getting higher and higher, which has become the trend of the reducer industry. [0003] However, for the planetary reducer, due to the existence of the planet carrier, the reducer has a large volume and a complicated structure, which cannot meet the requirements for use in a small space. In addition, for a reducer with full external gear transmission, the final rotational output is transmitted through external teeth, which limits the further improvement of the transmission ratio. [0004] Therefore, how to reduce the volume and weight of the reducer while increasing the transmission ratio of the reducer is a technical problem that those skilled in the art need to solve. Conte...

AI Technical Summary

Problems solved by technology

[0003] However, for the planetary reducer, due to the existence of the planet carrier, the reducer is large in size and complex in structure, which cannot meet the requirements of use in a small space

In addition, for the reducer with all external gear transmission, the final rotational output is through external gear transmission, which limits the further improvement of the transmission ratio.

Images