Automatic variable-speed motor transmission mechanism for electric tricycle and electric vehicle

Abstract

An automatic variable-speed motor transmission mechanism for an electric tricycle and an electric vehicle comprises a motor, an automatic speed changer and a differential system. The automatic variable-speed motor transmission mechanism is characterized in that the automatic speed changer consists of a speed changer shaft, a driving gear, a sun gear fixing plate, a driving disc, a housing and a connecting plate, a motor shaft of the motor drives the speed changer shaft, the connecting plate is mounted at the other end of the speed changer shaft and connected with the housing, a planetary gear is mounted on the upper portion of the housing, the driving disc with a shoe is fixedly connected to the lower portion of the planetary gear, a tension spring is connected with the shoe, the driving disc is sleeved on the outside of the speed changer shaft by a driving disc spline, the planetary gear matches with a sun gear, the sun gear matches with the sun gear fixing plate, through holes on two sides of the sun gear fixing plate are fixed on a body of a gearbox, the driving disc is connected with the driving gear by a driving gear spline, the driving gear drives an intermediate gear, an intermediate driven gear drives a driven gear, the driven gear is connected with the differential system, and a differential spline sleeve is connected to a rear axle shaft of the electric vehicle.

Description

Technical field [0001] The invention relates to a motor of an electric tricycle and an electric vehicle, in particular to a transmission mechanism of an automatic variable-speed motor driven by the rear axle of the electric vehicle. Background technique [0002] The rapid development of electric tricycles in my country has entered millions of households. The green environmental protection of electric tricycles is in line with the spirit of the country's low-carbon emission reduction directives. With the introduction of future standards for electric vehicles and electric motorcycles, the industry has higher technical requirements for the speed, load, and starting current of electric motors, the heart power of electric tricycles and electric vehicles. The quality of the motor directly affects the quality of electric vehicles. At present, brushless hub motors, brushless differential motors and series motors used in electric tricycles and electric vehicles in our country are more co...

AI Technical Summary

Problems solved by technology

At present, the brushless hub motors, brushless differential motors and series excitation motors used in electric tricycles and electric vehicles in my country are relatively common. These three motors are reasonable due to the consideration of the speed and load of electric tricycles in their design. Balanced, so there is a lack of climbing and speed during use, and the starting current is large, which reduces the service life of the battery, resulting in the amplification of the motor power and energy waste, and the load, speed, and climbing requirements cannot be met.

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