Ultra-light wheel shaft type decelerating motor

Abstract

The invention discloses an ultra-light wheel shaft type decelerating motor. The decelerating motor consists of an ultra-thin wheel hub, a half-shaft motor, a two-stage decelerator and a wheel fork, wherein the half-shaft motor and the two-stage decelerator are integrated so as to form a wheel shaft type decelerating motor; the two-stage decelerator is mounted in the ultra-thin wheel hub; the half-shaft motor is equivalent to a half shaft of a right wheel hub, so that a problem which is difficult to solve on the primary structure of a conventional light wheel hub motor is artfully and effectively solved, and the purposes that the reduction ratio is increased, the rotating speed of the motor is increased, the efficiency of the motor is improved, the weight of the motor is decreased, and the integral structure is simplified are achieved; a pulley transmission device in the two-stage decelerator is a high-speed transmission unit, and the problem that the noise of gear transmission is large is effectively solved; a large transmission gear is provided with an overrunning clutch flywheel, so that the sliding effect of an electric bicycle is the same as that of a common bicycle; the weight of the ultra-light wheel shaft type decelerating motor is only 1.5 kilograms, and the opening degree is smaller than 70mm; the ultra-light wheel shaft type decelerating motor is high in performance and low in cost.

Description

technical field [0001] The invention relates to a wheel hub motor of a light electric bicycle, to be precise, an ultra-light wheel shaft type deceleration motor. Background technique [0002] In the current electric vehicle market, the technical requirements for light electric bicycles are relatively high, and the performance indicators of the light hub motors used in them are higher, especially the weight index. Existing light electric bicycles generally use a mini type Hub motor, the main structural disadvantage of this kind of motor is: because the hub is small, the built-in planetary gear reduction mechanism and motor components can only be compactly set in a limited space, the deceleration ratio cannot be large, and the motor speed increases. It is not high, so the efficiency is not high enough, and it is difficult to reduce the weight. At present, the lightest mini motor is 2.5 kg, which has reached the limit. Therefore, the existing mini hub motor still has a lot of r...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the existing light-duty electric bicycle hub motors, the present invention introduces an ultra-light hub motor, which completely changes the original structure of the hub motor. It effectively solves the contradiction that is difficult to solve in the original structure of the existing light hub motor, and achieves the purpose of increasing the reduction ratio, increasing the motor speed, reducing the weight of the motor, and simplifying the overall structure. It is a high-performance, low-cost ultra-light hub motor. geared motor

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