Motor directly driven electro-tricycle rear axle

Abstract

The invention relates to a motor directly driven electro-tricycle rear axle which belongs to the technical field of electro-tricycles. The motor directly driven electro-tricycle rear axle comprises a rear axle frame, wherein the rear axle frame is formed in such a way that two support pipes are connected with two shaft sleeve pipes; the two support pipes are spaced to form a window; a drive shaft is installed on one shaft sleeve pipe, and a driven shaft is installed on the other shaft sleeve pipe; and a rear axle positioning plate is arranged on the rear axle frame. The motor directly driven electro-tricycle rear axle is characterized in that a motor mounting frame is arranged on the two support pipes in the window; a motor is installed on the motor mounting frame, and a shaft of the motor is directly connected with the drive shaft. The invention gets rid of a drive device comprising a gear and a gear or a chain wheel and a chain or a belt wheel and a belt, and the like between the motor with complicated structure and the drive shaft, thereby eliminating the energy consumption generated by the drive device; an electro-tricycle adopting the rear axle has simple structure, lighter weight and lower cost; and in addition, because the vibrations applied to the motor and the drive shaft are completely synchronous, the drive is steady and safe.

Description

technical field [0001] The invention belongs to the technical field of electric tricycles, and in particular relates to a rear axle of an electric tricycle directly driven by a motor. Background technique [0002] Electric tricycle rear axle and electric tricycle transmission, whether its structure is reasonable, is directly related to the performance and the quality of electric tricycle, for this reason, people have proposed many technical schemes, as public date: 2008.03.05, publication number is CN101134494A " electric tricycle The rear axle of ", announcement date: 2003.08.06, announcement number is CN2564406Y " a kind of electric tricycle gear transmission assembly ", announcement date: 2003.09.03, announcement number is CN2570084 " electric tricycle rear axle assembly " etc. But all there are many disadvantages in existing technical scheme, as above-mentioned " rear axle of electric tricycle " patent application, it comprises the rear axle that forms a housing chamber,...

AI Technical Summary

Problems solved by technology

However, the structure of the differential is complex and the weight is heavy. The operation of the differential itself requires a lot of power, and the cost is high.

The above-mentioned "a kind of electric tricycle gear transmission assembly" patent has a DC motor, a gearbox body, a gearbox cover, a motor gear and a rear axle gear, and it also has a large gear and a small gear mounted on the same rotating shaft, so , its structure is complex, the cost is high, and the power consumed by its own operation is large

In addition, the motors of the above-mentioned three technical solutions are not installed on the rear axle or the device integrated with the drive shaft sleeve, so the drive wheel installed on the shaft of the motor, and the slave on the shaft on which the hub is installed The vibrations they receive are asynchronous. Therefore, the center distance between the drive wheel on the shaft of the motor and the transmission wheel on the shaft on which the hub is mounted will constantly change when the electric tricycle is running, making the transmission Unstable, whether for gear transmission or sprocket transmission, it will increase the friction force in the transmission process, which will seriously increase the power loss

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