Electromagnetic planetary gear continuously variable transmission

Abstract

The invention discloses an electromagnetic planetary gear continuously variable transmission which comprises single-stage planetary gear trains, wherein each single planetary gear train comprises a central wheel, an internal tooth gear ring, a planet carrier and a planet wheel; the single-stage planetary gear trains are connected in series to form a two-stage planetary gear train; the planet carriers are used as a main drive element, and the central wheels are used as a driven element; in the two-stage planetary gear train, the lower-stage planet carrier is connected with the upper-stage central wheel; electromagnets for adsorbing the internal tooth gear rings are arranged in all single-stage planetary gear trains, and brake mechanisms for braking all corresponding internal tooth gearrings are arranged outside all the single-stage planetary gear trains; the final-stage planetary gear train is provided with a gear-reserving mechanism; the gear-reserving mechanism comprises a gear-reserving gear and an external tooth gear-reversing gear ring which are meshed mutually; the gear-reserving gear is smaller than the planet wheel and is coaxially connected with the planet wheel; and a brake mechanism for braking the external tooth reversing gear ring is arranged outside the planetary gear train. The invention can realize continuously variable speed with the drive ratio of 0-1 or realize overspeed continuously variable speed with drive ratio of multiple of 2, has the gear-reversing function and can be widely applied to all fields of the mechanical industry.

Description

(1) Technical field: [0001] The invention relates to a transmission system, in particular to an electromagnetic planetary gear continuously variable transmission. (two) background technology: [0002] The planetary gear train consists of a sun gear, an internal ring gear, a planetary carrier and a planetary gear, and two of the three elements of the sun gear, the internal ring gear and the planetary carrier can be selected as the driving part and the driven part respectively. And if the other element is not moved or its motion is subject to certain constraints, the entire gear train transmits power with a certain transmission ratio. [0003] Therefore, the gear train formed by the planetary gear train or the multi-row planetary gear train mechanism can perform mechanical shifting and is widely used in the automobile industry. For example, the hydraulic mechanical transmission used in the current limousine is composed of a four-element integrated hydraulic torque converter a...

AI Technical Summary

Problems solved by technology

[0005] However, the structure of the hydraulic mechanical transmission is complex, and the range of continuously variable speed is limited, so it cannot realize the whole process of continuously variable speed.

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