Gear box of wheel edge driving system of new energy automobile

Abstract

The invention discloses a gear box of a wheel edge driving system of a new energy automobile. The gear box comprises a shell, an input shaft, an output shaft and a transmission mechanism; a mounting plate is arranged on one side of the shell, the mounting plate is mounted on an automobile body, and lubricating oil can be added into the shell; the input shaft is connected with an automobile motor, and the input shaft is inserted into the shell and is rotationally connected with the shell; a wheel disc is arranged at the end of the output shaft, multiple mounting holes are formed in the wheel disc, the wheel disc is connected with an automobile hub through mounting holes and bolts, and one end of the output shaft is inserted into the shell and rotationally connected with the shell; and the transmission mechanism is mounted in the shell, and the transmission mechanism is connected with the output shaft and the input shaft. According to the gear box, lubricating oil can be pushed in the reverse direction of revolution of a planetary gears, then the lubricating oil can lubricate the planetary gear and an inner gear more comprehensively, more gears are lubricated by oil, and the service life of the gear box is prolonged.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a gear box for a new energy vehicle wheel drive system. Background technique [0002] New energy vehicles refer to the use of unconventional vehicle fuels as power sources (or the use of conventional vehicle fuels and new vehicle power devices), and the comprehensive vehicle power control and advanced technology in driving, the formation of advanced technical principles, with Automobiles with new technology and new structure. [0003] Since new energy vehicles use electricity as the driving force, the wheel-side permanent magnet drive system has changed the centralized drive mode of the central motor used by new energy vehicles in the past, and is directly driven by permanent magnet wheel-side motors installed on both sides of the electric vehicle axle. Drive, generally new energy vehicles use the inner rotor motor with a faster rotation speed as the rotating motor, ...

AI Technical Summary

Problems solved by technology

[0003] Since new energy vehicles use electricity as the driving force, the wheel-side permanent magnet drive system has changed the centralized drive mode of the central motor used by new energy vehicles in the past, and is directly driven by permanent magnet wheel-side motors installed on both sides of the electric vehicle axle. Drive, generally new energy vehicles use the inner rotor motor with a faster rotation speed as the rotating motor, so the wheel side reducer is required at the wheel position, that is, to improve the driving force of the car to meet or correct the matching of the driving force of the entire transmission system , the wheel reducer currently used is to meet the matching needs of the entire transmission system, and an additional set of gear transmission devices with reduced speed and increased torque is used. Most of them use gearboxes as carriers, and reduce their speed through planetary gears. The driving force of the wheel requires lubricating oil in the gearbox to lubricate the gears. However, during the gear lubrication process, the planetary gears at the end of the rotation direction receive the worst lubrication effect, which leads to the wear of the planetary gears at the end of the rotation direction. Large, and the part of the internal gear cannot be completely immersed in the lubricating oil, resulting in a non-lubricated state of the internal gear, which affects the use of the entire gear set

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