Wheel rim motor driving system and wheel rim motor driving axle

Abstract

The invention relates to a wheel rim motor driving system and a wheel rim motor driving axle. The wheel rim motor driving system comprises a driving motor assembly (2) and a main reducer assembly (4), wherein the main reducer assembly (4) comprises a driving gear, at least two intermediate gear shaft assemblies and an output gear (16); each intermediate gear shaft assembly is provided with a driving intermediate gear and a driven intermediate gear that are connected in a jointly rotating manner; a motor output shaft of the driving motor assembly (2) is connected with a driving gear (13); the driving gear (13) is engaged with each driving intermediate gear in each intermediate gear shaft assembly; each driven intermediate gear in each intermediate gear shaft assembly is engaged with the output gear (16); and the driving gear (13) and the output gear (16) are arranged eccentrically. The wheel rim motor driving axle comprises the wheel rim motor driving system. The wheel rim motor driving system and the wheel rim motor driving axle have the advantages of high motor power, large torque and large middle passage width.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a wheel-side motor drive system and a wheel-side motor drive axle. Background technique [0002] With the gradual withering of oil resources and the gradual increase of air pollution, the society is increasingly calling for new energy vehicles, including pure electric, hybrid, plug-in, fuel cell and other forms of vehicles. New energy vehicles greatly reduce the impact on Oil dependence and air pollution. Compared with traditional internal combustion engine vehicles, new energy vehicles have undergone tremendous changes in both the general layout of the vehicle and the drive system assembly due to the different forms of energy supply. The drive system assembly is crucial to the vehicle. Important, it not only undertakes the carrying function and driving function, but also directly determines the safety and comfort performance of the vehicle. [0003] At present, the structure of most...

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Problems solved by technology

[0003] At present, the structure of most vehicle drive systems (especially the drive system of new energy vehicles) is that the central motor is connected to a traditional rear axle through the transmission shaft. The floor layout needs to achieve drive anti-skid control and body stability control through braking, and the wheel motor drive axle has become an important research direction at home and abroad. This drive axle generally includes drive motors, reducer mechanisms, wheel hubs and other components. , replacing the engine, clutch, gearbox, transmission shaft, differential and other components, simplifying the overall mechanism and improving transmission efficiency

[0004] However, the existing wheel-side motor drive axles and the wheel-side motor drive systems therein have disadvantages such as low motor power, small torque, low speed, heavy weight, narrow middle channel, and high noise.

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