Transmission mechanism of hub drive automatic transmission motor of electric vehicle

Abstract

A transmission mechanism of a hub drive automatic transmission motor of an electric vehicle is composed of a hub, an upper end cover, a lower end cover, the motor, an automatic transmission, a planetary gear speed reducing mechanism, a spindle and the like. The transmission mechanism is characterized in that the automatic transmission is provided with a sun gear fixing plate, a driving disc, a cover casing, a location plate and a planetary gear reducer. Magnetic steel is arranged outside the cover casing, a stator is arranged outside the magnetic steel, the stator is fixed on a motor casing, the cover casing is connected with the location plate along an opening, and the spindle is fixedly connected with the motor casing and a planetary carrier of the planetary gear speed reducing mechanism through the center of the automatic transmission and extends to the outside of the upper cover and the lower cover to be fixedly connected with a vehicle frame. The motor casing and the planetary carrier of the planetary gear speed reducing mechanism are matched with an upper end cover bearing inner hole and a lower end cover bearing inner hole, a sun gear is matched with the sun gear fixing plate, a shoe block is connected with a pull spring, a diving disc is connected with a driving gear through a driving disc spline, the driving gear drives a planetary gear which drives a gear ring, the gear ring is fixedly connected with the upper end cover or the hub, and the upper end cover and the lower end cover are connected with the hub to form the transmission mechanism of the hub drive automatic transmission motor of the electric vehicle.

Description

technical field [0001] The invention relates to an electric wheel hub motor, in particular to an electric wheel hub driving automatic variable speed motor transmission mechanism. Background technique [0002] The rapid development of electric vehicles in our country has entered thousands of households. The green environmental protection of electric vehicles is in line with the spirit of the country's low-carbon emission reduction instructions. With the upcoming standards for electric vehicles and electric motorcycles in the future, the industry has higher technical requirements for the heart power of electric vehicles - the speed, load, and starting current of the motor. The quality of the motor directly affects the quality of electric vehicles. At present, the brushless hub motors used in electric vehicles in my country are relatively common. There are also high-speed hub motors, manual gear shift hub motors, and electronically controlled gear shift hub motors on the market...

AI Technical Summary

Problems solved by technology

At present, the brushless hub motors used in electric vehicles in my country are relatively common. There are also high-speed hub motors, manual gear shift hub motors, and electronically controlled gear shift hub motors on the market; ordinary brushless hub motors and high-speed hub motors only provide one transmission Speed, it needs to consider the reasonable balance of the two factors of speed and load during operation, so there are deficiencies in climbing and speed during use, and the starting current is large, which reduces the service life of the battery and causes the use of motor power. Amplification and energy waste, as well as load, speed, and climbing requirements cannot be met; manual shifting hub motors, electronically controlled shifting hub motors, they can realize the conversion of transmission ratios during operation, and meet the operating requirements of load and climbing However, because the system still needs manual support, the production cost of the product is increased, the manufacturing process is complicated, and the electronic gear shift hub motor also needs the support of a special control system, which has the defects of cumbersome use and inconvenient maintenance for users.

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