Electric vehicles, gearboxes, differential assemblies and bevel gears

Abstract

The invention discloses an electric vehicle, a speed reduction box, a differential assembly and a conical gear. The conical gear comprises a conical gear body; teeth are arranged on the outer surface of the conical gear body; a radial extending part which outwards extends along the radial direction is arranged at the large-aperture end of the conical gear body, covers the end faces of the teeth and is integrally connected with the teeth. According to the technical scheme, the radial extending part which outwards extends in the radial direction is arranged at the large-aperture end of the conical gear body, covers the end faces of the teeth and is integrally connected with the teeth, so that a combination part of the teeth and the conical gear body is added, and a semi-closed reinforcement structure is formed for the teeth; therefore the intensity is enhanced, and the service life is prolonged.

Description

technical field [0001] The invention relates to an electric vehicle, a reduction box, a differential gear assembly and a bevel gear. Background technique [0002] Electric vehicles are widely used due to their low noise, no exhaust, simple maintenance, easy operation, and superior traction performance. However, electric vehicles require a lot of power to provide energy. very critical. The driving system of an electric vehicle includes axles, wheels, frame and suspension. The driving motor transmits power to the wheels through the reduction box and the driving axle. In the prior art, the driving motor is generally arranged horizontally (that is, the motor shaft is horizontal). , such as the structures disclosed in patent documents such as CN102518780A, CN202944154U, CN202753777U, CN202753775U, etc., the motor shaft is parallel to the axle shaft, so that the transmission structure of the reduction box is relatively simple and convenient for assembly and debugging. However, t...

AI Technical Summary

Problems solved by technology

In the above structure, although the differential part and the reducer part are respectively located in the two box spaces, the lubricating oil in the two box spaces can communicate with each other, and the structure still adopts the horizontal setting of the driving motor

Moreover, this structure is also inconvenient for the gap adjustment of the bevel gear transmission pair

[0004] In the prior art, planetary gears and side gears in the differential assembly, such as Figure 7a , Figure 8a As shown, there are teeth on the outside of the conical wheel body, and only one side of the teeth is combined with the conical wheel body, so the strength and service life are low

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