Coaxial split type motor wheel hub

Abstract

The invention provides a coaxial-split motor circular rim, which comprises a motor, a rim case and a gear transmission system. Wherein, said motor and case are coaxial-split arranged; the central shaft of case is un-rotationally fixed and formed by first semi-shaft and second semi-shaft; the inner end of each two semi-shafts is individually fixed with a disc support, while said two disc supports are fixed; the outer thread of the end of first semi-shaft is connected to the inner thread of the end of motor end-cap to form a connection sheath; the rotational shaft of motor is through the connection shaft and inserted into the central through hole of first semi-shaft to connect one end of universal connection rod; another end of universal connection rod is connected to the input small gear of gear transmission system mounted on the central shaft; and the coaxial-split motor circular rim is mounted between two back horizontal forks of the frame of electric vehicle. The invention has the advantages that the rotor is in suspend unload condition to protect the motor from jounce and outer load, to improve its reliability and service life.

Description

technical field [0001] The invention relates to a motor driving device, which is suitable for motor driving parts of various electric vehicles and belongs to the field of power devices of electromechanical products. Background technique [0002] At present, most of the domestic electric motorcycle motor drive devices are directly driven by low-speed motors without gear transmission. The obvious disadvantage is that the motor directly runs on the road as a wheel, and the motor directly bears the load of the vehicle and road bumps, making it very easy to drive. Malfunctions can seriously affect performance and service life. [0003] The existing split type driving device, as shown in Figure 1, separates the motor 14 and the hub shell 15, so that the motor is not affected by the road and external loads, so this shortcoming can be avoided, but the motor 14 and the hub shell 15 are Eccentrically installed, the pinion 3 is installed on the output shaft of the motor 14, meshes wit...

AI Technical Summary

Problems solved by technology

[0006] 1. The motor is placed outside the rear fork of the electric vehicle, placed on a cantilever, which is vulnerable to collision damage, which is not good for protecting the motor:

[0007] 2. The overrunning clutch is placed in the large gear, which bears too much torque and is easily damaged:

[0008] 3. No brake set

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