A double-row planetary gear mechanical continuously variable transmission

By combining a double-row planetary gear system and a continuously variable belt drive system, the problems of low torque transmission, poor acceleration performance, and small variable transmission ratio range of traditional mechanical continuously variable transmissions are solved. This results in a double-row planetary gear mechanical continuously variable transmission with a large transmission ratio range and no need for a clutch or reverse gear, which improves the transmission torque and power, and ensures smooth shifting and driving comfort.

CN122148723APending Publication Date: 2026-06-05姜天翔

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
姜天翔
Filing Date
2026-04-28
Publication Date
2026-06-05

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    Figure CN122148723A_ABST
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Abstract

The application discloses a double-row planetary gear mechanical continuously variable transmission, and the transmission structure comprises a double-row planetary gear system and a continuously variable belt transmission system; the double-row planetary gear system comprises a sun gear, a planetary gear, a planet carrier and a power output gear; and the continuously variable belt transmission system comprises a first intermediate shaft gear, a first belt pulley, a transmission belt, a second belt pulley and a second intermediate shaft gear. According to the transmission implemented by the application, the change of the rotational speed of the power output can continuously change from a negative value to 0 and then continuously change to a positive value under the condition that the input rotational speed is not changed and is not 0, so that the transmission does not need a clutch and a reverse gear and the like, and the power input end can be directly connected with an engine, and therefore the transmission system implemented by the application has the advantages of compact structure, smooth gear shifting without jerk, large change range of the output rotational speed and the like.
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