A centrally-mounted drive mechanism used for a power-assisted bicycle, and a power-assisted bicycle. The centrally-mounted drive mechanism comprises an outer casing (1), an electric motor (2), a planetary gear mechanism in a transmission connection with an output shaft of the electric motor (2), a bevel gear driving end (9), and a bevel gear driven end (10) that meshes with the bevel gear driving end (9), said bevel gear driven end (10) being connected to a crankset (13). The planetary gear mechanism comprises a planetary gear (4) and a planetary gear output bracket (5), and a bevel gear support base (8) that is sleeved on the outer part of the planetary gear output bracket (5). A clutch (6) is disposed between the planetary gear output bracket (5) and the bevel gear support base (8), and a transmission connection is formed by means of the clutch (6) between the planetary gear output bracket (5) and the bevel gear support base (8). The bevel gear driving end (9) and the bevel gear support base (8) are coaxially and fixedly connected, and a support assembly (7) is mounted on the outer part of the bevel gear support base (8), said support assembly (7) being used to support the planetary gear output bracket (5) and the bevel gear driving end (9). The axial length of the centrally mounted drive mechanism is relatively short, and thus the overall structure and volume are more compact, thus making it convenient to install a battery with a greater capacity on the power-assisted bicycle, and increasing endurance capacity.
CENTRALLY-MOUNTED DRIVE MECHANISM USED FOR POWER-ASSISTED BICYCLE, AND POWER-ASSISTED BICYCLE
2022-12-01
Patent
Electronic Resource
English
CENTRALLY-MOUNTED DRIVE MECHANISM USED FOR POWER-ASSISTED BICYCLE, AND POWER-ASSISTED BICYCLE
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