Planetary gear power transmission structure for power shunting of new energy vehicle

Abstract

The invention discloses a planetary gear power transmission structure for power shunting of a new energy vehicle. The planetary gear power transmission structure includes a bottom beam, a mounting frame is mounted on the bottom beam, a planet wheel frame is mounted on the mounting frame, a front axle and a rear axle are arranged on the two sides of the bottom beam, differential mechanisms are installed on the front axle and the rear axle, second rotating shafts are rotationally installed on the two sides of each of the front axle and the rear axle, the front axle and the rear axle are rotationally connected with bogies through the second rotating shafts, the two bogies are symmetrically provided with two first rotating shafts, and the two first rotating shafts are rotationally connected tothe two sides of a linkage arm. By means of the planetary gear power transmission structure, it is ensured that steering of an inner ring of a hub bearing is more flexible through a first steering motor, compensation is provided for steering of a second steering motor, and the technical problem that a single differential mechanism of a new energy powered vehicle in the prior art cannot ensure that the vehicle is sensitive in steering at all times is solved.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a planetary gear power transmission structure for power splitting of new energy vehicles. Background technique [0002] New energy vehicles refer to the use of unconventional vehicle fuels as power sources (or the use of conventional vehicle fuels, the use of new vehicle power devices), integrated vehicle power control and advanced technology in driving, the formation of advanced technical principles, with Vehicles with new technologies and new structures, and new energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, and other new energy vehicles. [0003] The patent document (201910651719.4) discloses a power transmission mechanism for new energy vehicles. The transmission mechanism can buffer the transmission mechanism of the vehicle during driving through a buffer de...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a planetary gear power transmission structure for power splitting of new energy vehicles, which solves the following technical problems: (1) the output shaft of the second steering motor drives the second sprocket, the third sprocket, and the fourth sprocket simultaneously Rotate, the third sprocket drives the fifth sprocket to rotate through the chain, the fifth sprocket drives the steering gear on the front bridge to rotate through the first connecting rod, the fourth sprocket drives the sixth sprocket to rotate through the chain, the sixth sprocket The second connecting rod drives the steering gear on the rear bridge to rotate, and the two steering gears drive the fan-shaped teeth on the front and rear bridges to rotate respectively, and the two fan-shaped teeth drive the steering on the front and rear bridges respectively through the second rotating shaft. The bogie rotates, and the bogie drives one bogie to rotate through the linkage arm, and then the two bogies respectively drive the inner rings of the two hub bearings to turn, and the sector teeth cooperate with the steering gear to make the steering of the new energy vehicle more accurate. , to solve the technical problem of inaccurate steering of new energy vehicles in the prior art; (2) the inner rings of the two hub bearings respectively drive the first half-shaft and the second half-shaft to deflect through the universal joint and the differential. The output shaft of a steering motor drives the first sprocket to rotate, and the first sprocket drives the second sprocket to rotate through the chain, which further increases the speed of the output shaft of the second steering motor, and cooperates with the differential to compensate the steering speed of the inner ring of the hub bearing , the steering adjustment of the inner ring of the hub bearing is ensured by the second steering motor, and the steering of the inner ring of the hub bearing is guaranteed to be more flexible by the first steering motor, which provides compensation for the steering of the second steering motor and solves the problem of new energy vehicles in the prior art. The differential can not guarantee the sensitive technical problem of the car's steering moment; (3) The drive motor drives the two planetary wheels located below to rotate, the two planetary wheels drive the drive gear to rotate, and the drive gear coaxially drives the driven gear to rotate, The driven gear meshes to drive the main shaft gear to rotate, the main shaft gear drives the driving main shaft to rotate, and the driving main shaft drives the two first half shafts and the two second half shafts to rotate respectively through the differentials at both ends to complete the pure electric driving of the new energy vehicle , the engine is locked while the vehicle is running, the driving main shaft drives the main shaft gear to rotate, the main shaft gear meshes to drive the driven gear to rotate, the driven gear coaxially drives the driving gear to rotate, the driving gear drives the generator rotor through the planetary gear, and then the generator generates electricity. When the drive motor reaches a higher speed, the engine adjusts the speed of the drive gear through the upper planetary gear, and then adjusts the speed of the drive spindle, completing the hybrid drive of the engine, drive motor, and generator, solving the problem of new energy vehicles in the prior art The power drive structure is complex and the drive effect is not high technical problem

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