Heavy-load electric wheel

Abstract

The invention discloses a heavy-load electric wheel, and belongs to the field of electric vehicle power devices. A brake, a planetary gear reducer and a hub motor are sequentially arranged on the outer side of a supporting shaft from the distant to the near; the outer side of a hub is connected with a spoke mounting plane of a rim through a spoke, and the hub is mounted on the outer side of the supporting shaft through a pair of hub bearings; a brake caliper support in the brake is installed outside the distal facet of the wheel supporting shaft through a bolt, and a brake disc is installed ona brake disc installation flange of the hub; a hub part of the hub motor rotor support is sleeved on the rotor shaft; and a sun gear in the planetary gear reducer is disposed outside the distal end side of the rotor shaft. The axial size of the whole electric wheel assembly is short, and the hub motor, the planetary gear reducer and the brake are all arranged in the space defined by the rim on the inner side and the outer side of the electric wheel assembly, so that the electric wheel assembly can be suitable for common commercial vehicle double-tire parallel loading wheels.

Description

Technical field [0001] The invention belongs to the technical field of electric vehicle power devices, and is specifically a heavy-duty electric wheel. Background technique [0002] Traditional commercial vehicles generally use a centralized drive method, and their performance improvement is often limited in many aspects, such as: the transmission chain is long, requiring components such as transmission shaft, transfer case and differential, which affects the general layout and lightweight , The overall low efficiency of the transmission system limits the number of drive axles, thereby restricting the development of vehicles in the direction of super long and heavy loads; a single engine provides power, and the power transmission is a series transmission method, resulting in poor reliability and fault tolerance ; Low specific power and limited power. Therefore, the development of high-power engine technology has become a bottleneck for technological progress. For new energy com...

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