Steering drive axle of an all-wheel drive electric passenger car

Abstract

The invention relates to the technical field of electric passenger car axles, in particular to an all-wheel drive electric passenger car steering drive axle, the inner hole of each wheel hub is fixed on the outer surface of the steering horn hollow shaft through deep groove ball bearings, A first through hole is opened horizontally on the upper side, and a planet carrier is fixed on the end surface of the steering hollow shaft, and a second through hole communicating with the first through hole is arranged on the planet carrier laterally. There is an outer section of the transmission half shaft, and one end of the outer section of the transmission half shaft protruding from the second through hole is connected to the planetary gear reducer. The present invention adopts distributed wheel drive, and is equipped with a set of steering mechanism, adopts double-wishbone independent suspension, and can also realize large space and low floor, and optimizes the layout of the chassis. Adopting this structure replaces the immature distributed driving method of hub motors, overcomes the disadvantage of difficult space arrangement of double-wishbone independent suspension, and realizes all-wheel drive and all-wheel steering for passenger cars.

Description

technical field [0001] The invention relates to the technical field of electric passenger car axles, in particular to an all-wheel drive electric passenger car steering drive axle. Background technique [0002] At present, the chassis technology of large electric buses is based on the transformation of the traditional fuel vehicle chassis. In order to better adapt to the traditional fuel vehicle chassis, the rear drive is generally used in the design, the front axle is the steering axle, and the rear axle is the drive. bridge; and the design of the rear axle is generally only to connect the input shaft at the front end of the main reducer directly to the motor, and the motor is installed on the frame, that is, the single-motor drive mode. The axis of the motor is generally placed along the longitudinal direction of the bus. The curved surface gear reducer and the differential transmit the power to the left and right half shafts; in order to effectively drive the passenger ca...

AI Technical Summary

Problems solved by technology

The controllability and comfort of the independent suspension are better than that of the non-independent suspension, but the space layout is difficult due to the complex structure. On the side, leave a central position to arrange the body. In the case of a large motor size, if the half-shaft is arranged in the traditional form, the half-shaft structure cannot meet the car's up and down travel and driving requirements, and it is difficult to achieve a low floor. It is used in passenger cars. less

[0005] Nowadays, in the design of the latest electric bus, in order to reduce the turning radius and improve the maneuverability, a structure with all-wheel steering has appeared, but this structure still adopts the steering method of the traditional fuel vehicle, that is, the steering power source is on the front axle. , a mechanical steering link is set between the front axle and the rear axle, and the rear axle assists the steering. The structure is relatively complicated, and there are many connecting rods for steering, and the weight and volume are relatively large.

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